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47326834

10.1007/978-3-662-43459-8_12

Part 3: Creating Value through ApplicationsInternational audienceThe increased health problems associated with lack of physical activity is of great concern around the world. Mobile phone based fitness applications appear to be a cost effective promising solution for this problem. The aim of this study is to develop a research model that can broaden understanding of the factors that influence the user acceptance of mobile fitness apps. Drawing from Unified Theory of Acceptance and Use of Technology (UTAUT) and Elaboration Likelihood Model (ELM), we conceptualize the antecedents and moderating factors of fitness app use. We validate our model using field survey. Implications for research and practice are discussed

What Drives Fitness Apps Usage? An Empirical Evaluation

what drives fitness apps usage? an empirical evaluation

creating applicationsinternational audiencethe great concern world. mobile phone fitness promising problem. broaden acceptance mobile fitness apps. drawing unified acceptance utaut elaboration likelihood conceptualize antecedents moderating fitness use. validate survey.

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47337392

10.1016/j.jinteco.2011.07.002

International audienceGlobal trade contracted quickly and severely during the global crisis. This paper uses a unique dataset of French firms to match export data to firm-level credit constraints and shows that most of the 2008-2009 trade collapse was due to the unprecedented demand shock and to product characteristics. While all firms have been affected by the crisis, the effect on large firms has been mainly at the intensive margin and has resulted in a smaller portfolio of products being offered to export destinations. The effect on smaller exporters has been to reduce the range of destinations served or to stop exporting altogether. Credit constraints have been an added aggravation for firms active in high financial dependence sectors. However, the share of credit constrained firms is small and their number has not increased hugely during the crisis, with the result that the overall impact of credit constraints on trade has been limited

Firms and the global crisis: French exports in the turmoil

firms and the global crisis: french exports in the turmoil

audienceglobal trade contracted quickly severely crisis. dataset french firms match export firm credit trade collapse unprecedented shock characteristics. firms crisis firms intensive margin resulted portfolio offered export destinations. exporters destinations served stop exporting altogether. credit aggravation firms sectors. share credit constrained firms hugely crisis credit trade

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47842202

10.1016/j.jmateco.2007.06.008

International audienceWe investigate whether having a unique equilibrium (or a given number of equilibria) is robust to perturbation of the payoffs, both for Nash equilibrium and correlated equilibrium. We show that the set of n-player finite games with a unique correlated equilibrium is open, while this is not true of Nash equilibrium for n>2. The crucial lemma is that a unique correlated equilibrium is a quasi-strict Nash equilibrium. Related results are studied. For instance, we show that generic two-person zero-sum games have a unique correlated equilibrium and that, while the set of symmetric bimatrix games with a unique symmetric Nash equilibrium is not open, the set of symmetric bimatrix games with a unique and quasi-strict symmetric Nash equilibrium is

Is Having a Unique Equilibrium Robust?

is having a unique equilibrium robust?

audiencewe equilibria robust perturbation payoffs nash equilibrium. player games nash crucial quasi strict nash equilibrium. studied. generic person games bimatrix games nash bimatrix games quasi strict nash

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47850755

10.1016/j.respol.2007.02.003

http://www.nanoeconomics.eu/International audienceResearch and development at the nanoscale requires a large degree of integration, from convergence of research disciplines in new fields of enquiry to new linkages between start-ups, regional actors and research facilities. Based on the analysis of two clusters in nanotechnologies (MESA+ (Twente) and other centres in The Netherlands and Minatec in Grenoble in France), the paper discusses the phenomenon of technological agglomeration: co-located scientific and technological fields associated to coordinated technology platforms to some extent actively shaped by institutional entrepreneurs. Such co-location and coordination are probably a prerequisite for the emergence of strong nanoclusters. For more informations: http://www.nanoeconomics.eu

Technological agglomeration and the emergence of clusters and networks in nanotechnology

technological agglomeration and the emergence of clusters and networks in nanotechnology

www.nanoeconomics.eu audienceresearch nanoscale disciplines enquiry linkages actors facilities. nanotechnologies mesa twente centres netherlands minatec grenoble discusses phenomenon technological agglomeration technological coordinated platforms actively shaped institutional entrepreneurs. coordination probably prerequisite emergence nanoclusters. informations www.nanoeconomics.eu

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47853974

10.1007/978-3-642-03767-2

http://www.springerlink.com/content/k6741wt1028l7310/International audienceIn this paper we propose a new approach to improve electronic editions of literary corpus, providing an efficient estimation of manuscripts pages structure. In any handwriting documents analysis process, structure recognition is an important issue. The presence of variable inter-line spaces, of inconstant base-line skews, overlappings and occlusions in unconstrained ancient 19th handwritten documents complicates the structure recognition task. Text line and fragment extraction is based<br />on the connexity labelling of the adjacency graph at different resolution<br />levels, for borders, lines and fragments extraction

Hierarchical decomposition of handwritten<br /> manuscripts layouts

hierarchical decomposition of handwritten<br /> manuscripts layouts

audiencein propose editions literary corpus manuscripts pages structure. handwriting documents recognition issue. inconstant skews overlappings occlusions unconstrained ancient handwritten documents complicates recognition task. fragment extraction connexity labelling adjacency borders fragments extraction

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48149387

10.1016/j.seares.2016.08.003

International audienceWe used sedimentological and foraminiferal characteristics of four sedimentary cores, supported by paleogeographical and historical data, to reconstruct the depositional history of the inner Loire estuary (Near Saint-Nazaire, France) and the response of benthic foraminifera to the mid- to late-Holocene marine flooding of the incised valley. These were further used to evaluate the consequent changes in estuarine morphological and hydro-sedimentary patterns during this time period. Our results described significant changes in hydro-sedimentary dynamics over the past ~ 6 kyrs BP. At our location, these changes expressed the combined influence of marine (e.g., tide, storm waves) and fluvial dynamics (e.g., floods), which are linked, on a broader scale, to sea-level variations and the regional climate regime. Three main periods stand out: (1) from ~ 6.0 to ~ 2.5 kyrs BP, when the sea-level rise slowed down, a large brackish bay extended over and around the study area. The fine-grained tidal rythmites recorded north of the Bilho bank (the main tidal bar located in our study area) indicated a calm depositional environment, protected from the main riverine influence. The presence of thick flood deposits from ~ 5.4 to ~ 4.0 kyrs BP near the Bilho bank indicates further the dominance of humid conditions. (2) From ~ 2.5 kyrs BP to ~ 1850 CE (pre-industrial state), sea-level stabilized at its present value, and the pre-existing bay was progressively infilled. North of the Bilho bank, near a major mudflat (Méan), the generally homogenous sedimentation composed of silty muds rich in organic matter indicated a sheltered environment; the main water flow channel being located south of the Bilho bank. Within this overall homogenous sedimentation, foraminiferal assemblages described rather accurately the progressive infilling of the valley (indicated by a decrease in the proportions of outer estuarine species), accompanied with the channelization of the main entering marine currents (tide, storm waves) (indicated by an increase in the proportions of transported species from the adjacent upper continental shelf), and finally the buildup of the Méan mudflat and the stabilization of the environment to its present day configuration (indicated by the dominance of autochthonous inner estuarine species). (3) Since 1850 CE, the human impact progressively modified the general landscape of our study area with the construction of the Saint-Nazaire shipyard, the digging of the northern navigation channel and the polderization of the northern Bay. The southern channel was progressively abandoned by the main water flow in favor of the newly dug northern channel, causing the southern migration of the Bilho sandbank and the progressive filling of the southern channel

Mid- to late-Holocene environmental evolution of the Loire estuary as observed from sedimentary characteristics and benthic foraminiferal assemblages

mid- to late-holocene environmental evolution of the loire estuary as observed from sedimentary characteristics and benthic foraminiferal assemblages

audiencewe sedimentological foraminiferal sedimentary cores paleogeographical historical reconstruct depositional loire estuary saint nazaire benthic foraminifera holocene marine flooding incised valley. consequent estuarine morphological hydro sedimentary period. hydro sedimentary kyrs marine e.g. tide storm fluvial e.g. floods broader regime. stand kyrs slowed brackish area. fine grained tidal rythmites bilho bank tidal calm depositional protected riverine influence. thick flood deposits kyrs bilho bank dominance humid conditions. kyrs industrial stabilized progressively infilled. bilho bank mudflat méan homogenous sedimentation composed silty muds sheltered bilho bank. homogenous sedimentation foraminiferal assemblages accurately progressive infilling valley proportions outer estuarine accompanied channelization entering marine currents tide storm proportions transported adjacent continental shelf buildup méan mudflat stabilization dominance autochthonous estuarine progressively landscape saint nazaire shipyard digging northern navigation polderization northern bay. southern progressively abandoned favor newly northern causing southern migration bilho sandbank progressive filling southern

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48324397

10.1016/j.crma.2014.09.014

International audienceIn this Note, we propose a new method, based on perturbation theory, to post-process the planewave approximation of the eigenmodes of periodic Schrödinger operators. We then use this post-processing to construct an accurate a posteriori estimator for the approximations of the (nonlinear) Gross--Pitaevskii equation, valid at each step of a self-consistent procedure. This allows us to design an adaptive algorithm for solving the Gross-Pitaevskii equation, which automatically refines the discretization along the convergence of the iterative process, by means of adaptive stopping criteria

A perturbation-method-based a posteriori estimator for the planewave discretization of nonlinear Schrödinger equations

a perturbation-method-based a posteriori estimator for the planewave discretization of nonlinear schrödinger equations

audiencein propose perturbation planewave eigenmodes schrödinger operators. posteriori estimator approximations gross pitaevskii valid procedure. adaptive solving gross pitaevskii automatically refines discretization iterative adaptive stopping

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49292315

10.1016/j.strusafe.2008.04.001

International audienceStructural deterioration is becoming a major problem when considering long term performance of infrastructures. The existence of a corrosive environment, cyclic loading and concrete cracking cause structural strength degradation. The interaction of these conditions can only be taken into account when modeling the coupled action. In this paper, a new model to assess lifetime of RC structures subject to corrosion-fatigue deterioration processes, is proposed. Separately, corrosion leads to cross section reduction while fatigue induces the nucleation and the propagation of cracks in steel bars. When considered together, pitting corrosion nucleates the crack while environmental factors affect the kinematics of crack propagation. The model is applied to the reliability analysis of bridge girders located in different chloride-contaminated environments. Overall results show that the coupled effect of corrosion-fatigue on RC structures affects strongly its performance leading to large reduction in the expected lifetime

Probabilistic lifetime assessment of RC structures under coupled corrosion-fatigue deterioration processes

probabilistic lifetime assessment of rc structures under coupled corrosion-fatigue deterioration processes

audiencestructural deterioration becoming infrastructures. corrosive cyclic loading concrete cracking degradation. action. lifetime corrosion fatigue deterioration proposed. separately corrosion fatigue induces nucleation propagation cracks steel bars. pitting corrosion nucleates crack kinematics crack propagation. reliability bridge girders chloride contaminated environments. corrosion fatigue affects lifetime

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50539749

10.1016/j.ultrasmedbio.2010.10.014

International audienceThe purpose of this study was to validate through experiments that frequency modulation (FM) of microembolic signatures was principally due to the radiation force. Several experiments were required to prove that such a frequency modulation originates from microdisplacements induced by the radiation force acting on microbubbles. The first experiment was performed to verify that the diffraction effects due to the presence of a skull did not disturb the acoustic field appreciably and to validate that a radiation force in the brain was sufficient to create a detectable microdisplacement. A second in vitro experiment using a single gate transcranial Doppler (TCD) system was conducted to show discrimination feasibility and to check that microembolic frequency modulation signatures (FMS) and frequency modulation index (FMI) were the same as those observed in vivo and those calculated by simulation. A final in vitro experiment was performed using a multigate multichannel TCD system to confirm the second experiment by directly measuring the microdisplacement induced by the radiation force. A new parameter, to be known as the position modulation index (PMI), is proposed. We showed that the radiation force is sufficient to induce detectable microdisplacements despite the presence of the skull. We also showed that the diffraction effects due to the skull induced a decrease in the ultrasound beam of 7.6 dB. Finally, we showed by using FMI and PMI that it is possible to discriminate gaseous from formed elements (<100 microns) despite the presence of the skull. The discrimination based on the FMI is an off-line technique allowing the analysis of standard TCD recordings. However, discrimination based on the PMI requires recordings obtained exclusively from a multi-gate system

Analysis of index modulation of doppler microembolic signals part II: in vitro discrimination.

analysis of index modulation of doppler microembolic signals part ii: in vitro discrimination.

audiencethe validate modulation microembolic signatures principally force. modulation originates microdisplacements acting microbubbles. verify diffraction skull disturb acoustic appreciably validate create detectable microdisplacement. gate transcranial doppler discrimination feasibility check microembolic modulation signatures modulation simulation. multigate multichannel confirm measuring microdisplacement force. modulation proposed. induce detectable microdisplacements skull. diffraction skull ultrasound discriminate gaseous microns skull. discrimination allowing recordings. discrimination recordings exclusively gate

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50615186

10.1007/978-3-319-10428-7_22

International audienceEnergetic Reasoning (ER) is a powerful filtering algorithm for the Cumulative constraint. Unfortunately, ER is generally too costly to be used in practice. One reason of its bad behavior is that many intervals are considered as relevant, although most of them should be ignored. In the literature, heuristic approaches have been developed in order to reduce the number of intervals to consider, leading to a loss of filtering. In this paper, we provide a sharp characterization that allows to reduce the number of intervals by a factor seven without loss of filtering

A New Characterization of Relevant Intervals for Energetic Reasoning

a new characterization of relevant intervals for energetic reasoning

audienceenergetic reasoning powerful filtering cumulative constraint. unfortunately costly practice. intervals ignored. heuristic intervals filtering. sharp intervals seven filtering

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50618006

10.1007/s10601-006-9002-8

International audienceIdentifying structures in a given combinatorial problem is often a key step for designing efficient search heuristics or for understanding the inherent complexity of the problem. Several Operations Research approaches apply decomposition or relaxation strategies upon such a structure identified within a given problem. The next step is to design algorithms that adaptively integrate that kind of information during search. We claim in this paper, inspired by previous work on impact-based search strategies for constraint programming, that using an explanation-based constraint solver may lead to collect invaluable information on the intimate dynamically revealed and static structures of a problem instance. Moreover, we discuss how dedicated OR solving strategies (such as Benders decomposition) could be adapted to constraint programming when specific relationships between variables are exhibited

Identifying and exploiting problem structures using explanation-based constraint programming

identifying and exploiting problem structures using explanation-based constraint programming

audienceidentifying combinatorial designing heuristics inherent problem. operations decomposition relaxation problem. adaptively integrate kind search. claim inspired programming explanation solver collect invaluable intimate dynamically instance. dedicated solving benders decomposition adapted programming exhibited

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50618162

10.1103/PhysRevC.76.047304

Theoretical decay half-lives of the heaviest odd-Z nuclei are calculated using the experimental Q value. The barriers in the quasimolecular shape path are determined within a Generalized Liquid Drop Model (GLDM) and the WKB approximation is used. The results are compared with calculations using the Density-Dependent M3Y (DDM3Y) effective interaction and the Viola-Seaborg-Sobiczewski (VSS) formulas. The calculations provide consistent estimates for the half-lives of the decay chains of these superheavy elements. The experimental data stand between the GLDM calculations and VSS ones in the most time. Predictions are provided for the decay half-lives of other superheavy nuclei within the GLDM and VSS approaches using the recent extrapolated Q of Audi, Wapstra, and Thibault [Nucl. Phys. A729, 337 (2003)], which may be used for future experimental assignment and identification

Theoretical and experimental $\alpha$ decay half-lives of the heaviest odd-Z elements and general predictions

theoretical and experimental $\alpha$ decay half-lives of the heaviest odd-z elements and general predictions

lives heaviest nuclei value. barriers quasimolecular drop gldm used. viola seaborg sobiczewski formulas. lives chains superheavy elements. stand gldm time. lives superheavy nuclei gldm extrapolated audi wapstra thibault nucl. phys. assignment

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51213538

10.1007/s10270-013-0364-2

International audienceVariability management is a key issue when building and evolving software-intensive systems, making it possible to extend, confi gure, customize and adapt such systems to customers' needs and speci fic deployment contexts. A wide form of variability can be found in extensible software systems, typically built on top of plugin-based architectures that o ffer a (large) number of con figuration options through plugins. In an ideal world, a software architect should be able to generate a system variant on-demand, corresponding to a particular assembly of plugins. To this end, the variation points and constraints between architectural elements should be properly modeled and maintained over time (i.e., for each version of an architecture). A crucial, yet error-prone and time-consuming, task for a software architect is to build an accurate representation of the variability of an architecture, in order to prevent unsafe architectural variants and reach the highest possible level of flexibility. In this article, we propose a reverse engineering process for producing a variability model (i.e., a feature model) of a plugin-based architecture. We develop automated techniques to extract and combine di fferent variability descriptions, including a hierarchical software architecture model, a plugin dependency model and the software architect knowledge. By computing and reasoning about diff erences between versions of architectural feature models, software architect can control both the variability extraction and evolution processes. The proposed approach has been applied to a representative, large-scale plugin-based system (FraSCAti), considering diff erent versions of its architecture. We report on our experience in this context

Extraction and Evolution of Architectural Variability Models in Plugin-based Systems

extraction and evolution of architectural variability models in plugin-based systems

audiencevariability evolving intensive extend confi gure customize adapt customers speci deployment contexts. extensible built plugin architectures ffer figuration options plugins. ideal architect variant assembly plugins. architectural properly modeled maintained i.e. architecture crucial prone consuming architect build architecture prevent unsafe architectural variants flexibility. propose reverse producing i.e. plugin architecture. automated extract combine fferent descriptions hierarchical architecture plugin dependency architect knowledge. reasoning diff erences versions architectural architect extraction processes. plugin frascati diff erent versions architecture.

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51236901

10.1051/agro:2004039

The aim of this paper was to develop an upscaling approach for the soil-crop model STICS in order to predict the impact of agricultural practices on nitrate leaching on both plot and regional scales. A case study was carried out on a "Nitrate Vulnerable Zone" located in central France. The performance of the spatial approach was evaluated by accounting for all the spatial and temporal variability existing within the studied area. The results indicate that N leaching and nitrate concentration in drainage water were slightly underestimated; by 3 kg N·ha-1 (16%) and 8 mg NO3-·L-1 (11%), respectively. The STICS scaling approach was used to assess the effectiveness of "Good Agricultural Practice" established within the area over a seven-year period. The simulation results provided evidence that such a practice had reduced the nitrate concentration by about 30% (36 mg NO3-·L-1). However, the rate of nitrate leaching remains too large and further improvements to agricultural practices are required

The STICS model to predict nitrate leaching following agricultural pratices.

the stics model to predict nitrate leaching following agricultural pratices.

upscaling crop stics predict agricultural practices nitrate leaching scales. nitrate vulnerable france. accounting area. leaching nitrate drainage underestimated n·ha respectively. stics effectiveness agricultural seven period. nitrate nitrate leaching improvements agricultural practices

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51441085

10.1016/j.fluid.2015.04.024

International audienceThree different variants of the crossover Soave–Redlich–Kwong equation of state are applied to describe the equilibrium behaviour of 72 common non-associating fluids – 27 hydrocarbons (including the first 10 n-alkanes), 36 halogenated refrigerants, 5 cryogenics (fluorine, oxygen, nitrogen, argon and carbon monoxide) and 4 other industrially important inorganic fluids (carbon dioxide, sulfur dioxide, nitrous oxide and sulfur hexafluoride). The model contains six compound dependent parameters.Two of them (a0 and b of the classical part) are adjusted on the critical experimental temperature and the critical pressure. In a first model denoted as model A, the four remaining parameters are fitted to describe the saturated liquid and vapour densities and vapor pressures as well as PVT data at pressures up to P = 3 × Pc. In the second model (model B), the dispersion softness m is expressed as a function of the acentric factor ω and a relation between two of the crossover parameters is employed; the number of fitted parameters is thus reduced to two. Based on model B, we suggested our final Model C, in which all the parameters can be determined from the critical point, acentric factor or rectlinear diameter. This model is superior to the classical Soave–Redlich–Kwong equation of state because it improves considerably the description of the liquid densities over the whole coexistence region. Contrary to equations of state optimized to reproduce the liquid densities at low temperatures, the crossover equation does not overpredict the critical temperature and pressure. Model C is applied to describe the equilibrium behaviour of two compounds not included in the parameterization, hexafluoropropene (HFO1216) and hexafluoropropene oxide (HFPO)

A generalized Kiselev crossover approach applied to Soave–Redlich–Kwong equation of state

a generalized kiselev crossover approach applied to soave–redlich–kwong equation of state

audiencethree variants crossover soave–redlich–kwong associating fluids hydrocarbons alkanes halogenated refrigerants cryogenics fluorine nitrogen argon monoxide industrially inorganic fluids dioxide sulfur dioxide nitrous oxide sulfur hexafluoride compound parameters.two adjusted pressure. denoted fitted saturated vapour densities vapor pressures pressures softness acentric crossover fitted two. acentric rectlinear diameter. superior soave–redlich–kwong improves considerably densities coexistence region. contrary optimized reproduce densities crossover overpredict pressure. parameterization hexafluoropropene hexafluoropropene oxide hfpo

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51955721

10.1007/s11669-014-0282-1

International audienceThe nature of liquid-solid phase equilibria in the Al-rich corner of the Al-Si-Ti system are determined by drawing three isothermal sections at 620, 680 and 727 C. The solubility of Ti in Al-Si liquids is determined for four different compositions (0, 9, 13 and 18 at.%Si) at temperature below 800 C. Combination of the two sets of experimental results leads to an attempt of liquidus projection. The primary crystallization surface of Al3Ti is found to extend up to 9.5 at.%Si in the liquid phase at 620 C and 11 at.%Si at 727 C. The solubility of Ti is found to be not significantly dependent on the Si content of the liquid. From DSC measurements and deduction on microstructure, the last invariant reaction of the solidification path is found to be quasi-peritectic: L + Tau1-Ti7Al5Si12 -> Al + Si

On the Liquid/Solid Phase Equilibria in the Al-Rich Corner of the Al-Si-Ti Ternary System

on the liquid/solid phase equilibria in the al-rich corner of the al-si-ti ternary system

audiencethe equilibria corner drawing isothermal solubility liquids compositions attempt liquidus projection. crystallization extend solubility liquid. deduction microstructure solidification quasi peritectic

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51963827

10.1002/mrm.24218

International audienceThe aim of this study was to compare magnetic resonance imaging (MRI) and histological estimates of the mean vessel diameter (mVD), the vessel density (Density), and the vessel size index (VSI) obtained in the same tumor-bearing animals. Twenty-seven rats bearing intracranial glioma (C6 or RG2) were imaged by MRI. Changes in transverse relaxations (ΔR 2* and R(2)) were induced by the injection of an iron-based contrast agent and were mapped using a multi gradient-echo spin-echo sequence. Then, brain vascular network was studied ex vivo by histology. Three regions of interest were drawn in apparently normal tissue (neocortex and striatum) and in the tumor. In vivo mVD(MRI), Density(MRI), and VSI(MRI) were measured; ex vivo, mVD(histo), Density(histo), and VSI(histo) were quantified on the same animals. MRI and histology measurements differed by -15 to 26%. A positive correlation was found between MRI and histology for mVD, Density, and VSI counterparts (R(2) = 0.62, 0.50, 0.73, respectively; P < 0.001 in all cases). This study indicates that MRI and histology yields well correlated the estimates of mVD, Density, and VSI. VSI is the closest MRI estimate to histology. As Density and mVD or VSI provide complementary information, it is worth computing them to characterize angiogenesis beyond blood volume fraction

In vivo imaging of vessel diameter, size, and density: a comparative study between MRI and histology. : Vessel diameter, size and density: MRI vs histology

in vivo imaging of vessel diameter, size, and density: a comparative study between mri and histology. : vessel diameter, size and density: mri vs histology

audiencethe histological vessel vessel vessel bearing animals. twenty seven rats bearing intracranial glioma imaged mri. relaxations injection iron agent mapped echo echo sequence. vascular histology. drawn apparently neocortex striatum tumor. histo histo histo quantified animals. histology differed histology counterparts histology vsi. closest histology. complementary worth characterize angiogenesis

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52429026

10.1016/j.clinph.2015.04.050

International audienceObjectiveLoss of consciousness (LOC) in frontal lobe epilepsy (FLE) has been rarely specifically studied until now. In this study we evaluated the LOC in a population of patients with FLE and studied the relationship between changes in synchrony and degree of LOC.Methods24 patients undergoing stereoelectroencephalography (SEEG) during pre-surgical evaluation of FLE were studied. The LOC intensity was scored using the Consciousness Seizure Scale (CSS). For each studied seizure (n = 52), interdependencies between signals recorded from 5 brain regions were estimated as a function of time by using non-linear regression analysis (h2 coefficient).ResultsSeizures were divided into 3 groups according to the CSS scale: group A (no LOC) with a score ⩽2, group B (intermediate or partial LOC) with a score ranging from 3 to 5, and group C (maximal LOC) with a score ⩾6. The majority of seizures in FLE patients disclosed significant LOC, particularly for patients with prefrontal lobe seizures. Mean correlation values were significantly different between groups A and C (p < 0.001), the maximal values of synchrony being observed in group C. Differences were significant for interaction affecting the external prefrontal cortex (p = 0.004) (p = 0.01) and the parietal cortex. In addition, a significant correlation was found between CSS scores and correlations values (h2) of the prefrontal and the parietal region but not with the premotor cortex.ConclusionsThis study indicates that in FLE, prefrontal seizures frequently alter consciousness. As in other focal seizures, LOC appears to be related to changes in synchrony in prefrontal and parietal associative cortices

Altered synchrony and loss of consciousness during frontal lobe seizures

altered synchrony and loss of consciousness during frontal lobe seizures

audienceobjectiveloss consciousness frontal lobe epilepsy rarely now. synchrony loc.methods undergoing stereoelectroencephalography seeg surgical studied. scored consciousness seizure seizure interdependencies .resultsseizures divided ranging maximal majority seizures disclosed prefrontal lobe seizures. maximal synchrony affecting prefrontal cortex parietal cortex. prefrontal parietal premotor cortex.conclusionsthis prefrontal seizures frequently alter consciousness. focal seizures synchrony prefrontal parietal associative cortices

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52465492

10.1016/j.dsr.2008.01.002

International audienceThe main Marmara Fault exhibits numerous sites of fluid venting, observed during previous cruises and in particular with ROV VICTOR during the MARMARASCARPS cruise (2002). Long CALYPSO cores were recovered near active vents and at reference sites during the MARMARA-VT cruise (2004), together with echosounder sub-bottom profiles (frequency of 3.5 kHz). We compiled ROV video observations from MARMARASCARPS cruise and show that all known seeps occur in relationship with strike-slip faults, providing pathways for fluid migration. Among the main active sites, a distinction is made between gas seeps and water seeps. At gas seeps, bubble emissions at the seafloor or disturbed echofacies on sounder profiles demonstrate the presence of free methane gas at a shallow depth within the sediment. Most cores displayed gas related expansion, most intense for cores taken within the gas plumes. On the other hand, authigenic carbonate chimneys characterize the water seeps and visible water outflow was observed at two sites (in the Tekirdağ and Central basins). The pore fluid chemistry data show that the water expelled at these sites is brackish water trapped in the sediment during lacustrine times (before 14 cal Kyr BP), in relation with the paleoceanography in the Sea of Marmara. The chimney site in the Tekirdağ basin is located at the outlet of a canyon feeding a buried fan with coarse sandy turbidites. Pore fluid composition profiles indicate that the sand layers channel the brackish fluids laterally from the basin into the fault zone at less than 20 m depth. However, a deeper gas source cannot be excluded

Cold seeps along the main Marmara fault in the Sea of Marmara (Turkey)

cold seeps along the main marmara fault in the sea of marmara (turkey)

audiencethe marmara fault exhibits numerous venting cruises victor marmarascarps cruise calypso cores recovered vents marmara cruise echosounder compiled video marmarascarps cruise seeps strike slip faults pathways migration. distinction seeps seeps. seeps bubble seafloor disturbed echofacies sounder methane shallow sediment. cores displayed intense cores plumes. authigenic carbonate chimneys characterize seeps visible outflow tekirdağ basins pore expelled brackish trapped sediment lacustrine paleoceanography marmara. chimney tekirdağ basin outlet canyon feeding buried coarse sandy turbidites. pore sand brackish fluids laterally basin fault depth. deeper excluded

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52645735

10.1007/s10825-013-0532-1

International audienceMobility in high-k/metal-gate Ultra-Thin Body and Box Fully Depleted SOI devices has been extensively investigated by means of multi-scale simulations and experimental data. Split-CV mobility measurements have been performed for various Interfacial Layer Equivalent Oxide Thickness allowing an investigation of the physical mechanisms responsible for the mobility degradation at highk/ Interfacial layer interface. The impact of the back bias on transport properties is investigated and mobility enhancement in the reverse regime (back gate inversion) is studied. A multi-scale simulation strategy is ranging from quantum Non-equilibrium Green's Functions to semi-classical Kubo Greenwood approach. These advanced solvers made possible a throughout calibration of empirical TCAD mobility models

Multi-scale strategy for high-k/metal-gate UTBB-FDSOI devices modeling with emphasis on back bias impact on mobility

multi-scale strategy for high-k/metal-gate utbb-fdsoi devices modeling with emphasis on back bias impact on mobility

audiencemobility gate ultra depleted devices extensively data. split mobility interfacial oxide allowing mobility degradation highk interfacial interface. mobility enhancement reverse gate inversion studied. ranging kubo greenwood approach. advanced solvers calibration tcad mobility

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52663741

10.1051/0004-6361:20079170

International audienceWe tried to detect CO lines at millimeter wavelength on Saturn and Uranus in order to better constrain the origin of this compound in the atmospheres of these planets. CO sources can be either of internal or of external origin. Methods. We recorded broad multi-band spectra of Saturn and Uranus at the frequencies of the J=1"0 and J=2"1 CO lines, at the IRAM 30m-telescope, Spain, using Lellouch et al. (2005) and Hesman et al. (2007) observing technique. Results. As we do not detect any CO line in the spectra, we derive new upper limits of the abundance of CO in the atmospheres of Saturn and Uranus. The value we obtain for Saturn (6.3×10−8, restricted to the stratosphere) is larger than the value of the CO mixing ratio in the external origin model of Noll & Larson (1991). New observations with better sensitivity and/or more observing time should enable us to state on the CO external source strength. The upper limit we derive on Uranus is slightly lower (2.7 × 10−8, restricted to the stratosphere) than the value derived from the first observation of CO on Uranus, at infrared wavelength, by Encrenaz et al. (2004). As their fluorescence model did not take scattering effects into account, we suggest that their value could be overestimated

Observations of CO on Saturn and Uranus at millimeter wavelengths: New upper limit determinations

observations of co on saturn and uranus at millimeter wavelengths: new upper limit determinations

audiencewe tried detect millimeter saturn uranus constrain compound atmospheres planets. origin. methods. broad saturn uranus iram telescope spain lellouch hesman observing technique. results. detect derive abundance atmospheres saturn uranus. saturn restricted stratosphere noll larson observing enable strength. derive uranus restricted stratosphere uranus infrared encrenaz fluorescence overestimated

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52686867

10.1088/0957-0233/17/12/S03

International audienceA novel polymer microarray fabrication technique is presented and applied to the realization of a biochip for highly parallelized cell transfection. The proposed microfabrication technique is derived from a macroscale rapid prototyping technique called vacuum casting. It was optimized to reduce production cost, in order to produce small series (100-10 000 chip series) of chips to meet demand in today's market of cellulomics. Microfabrication technologies and rapid prototyping technologies are combined to shape the master part, which can thus involve microsized features. The corresponding female structure is moulded in a flexible silicone material. The duplicated polymer chips are obtained by casting a thermosetting plastic under vacuum. The dimensional replication accuracy between the master part and the duplicated parts is uniform over the duplicated parts and better than 1%. Advantages of the proposed technique over existing plastic microfabrication techniques are discussed in the paper. Using this microfabrication technique, we produced a plastic biochip for highly parallelized transfection of arrays of living cells. The feasibility of parallel lipofection was demonstrated: two different plasmids encoding, respectively, eGFP and DsRED2 were inserted into HEK293T cells. The transfection was monitored through fluorescence observation after 72 h showing successful expression of both genes

Vacuum Casting to Manufacture a Plastic Biochip for Highly Parallel Cell Transfection

vacuum casting to manufacture a plastic biochip for highly parallel cell transfection

audiencea polymer microarray fabrication realization biochip parallelized transfection. microfabrication macroscale prototyping casting. optimized chip chips meet today cellulomics. microfabrication technologies prototyping technologies master involve microsized features. moulded flexible silicone material. duplicated polymer chips casting thermosetting plastic vacuum. replication master duplicated duplicated advantages plastic microfabrication paper. microfabrication plastic biochip parallelized transfection arrays living cells. feasibility lipofection plasmids encoding egfp dsred inserted cells. transfection monitored fluorescence successful

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52701027

10.1051/jp4:1995428

International audienceNitromethane has been studied as a model of the energetic nitro materials. The liquid - transition line has been established by Piermarini [1] and a first solid - solid transition corresponding to the methyl group rotation locking has been evidenced by Cromer [2]. In order to precise the phase diagram of nitromethane, a study has been performed by Raman scattering in the pressure and temperature range of 0 -35 GPa and 20 - 350°C respectively. From these experimental results three new solid phases of nitromethane called III, IV, V and their stability domain have been located. A first chemical transformation line has been detected by the disappearance of nitromethane Raman modes and by the irreversible formation of a transparent solid (CI). A second chemical transformation (CI - CII), at higher temperature, is observed by the sudden darkening of the sample

A Raman Spectroscopic Study of Nitromethane up to 350 °C and 35 GPa

a raman spectroscopic study of nitromethane up to 350 °c and 35 gpa

audiencenitromethane energetic nitro materials. piermarini methyl locking evidenced cromer precise nitromethane raman respectively. nitromethane located. disappearance nitromethane raman irreversible transparent sudden darkening

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52709053

10.1046/j.1365-246x.2001.01441.x

International audienceOur aim is to understand better the rifting process by imaging the Moho depth variation beneath Corinth and Evvia. We present here the results of a gravity inversion analysis in the region of the Corinth and Evvia rift system, and compare them to those obtained independently from teleseismic tomography and receiver function analyses. The results of these different studies appear to be consistent and show (1) a 10 km crustal thickening in the western part of the area beneath the Hellenides mountains, (2) NW–SE-trending periodic crustal thinning, and (3) a maximum crustal thinning north of the Gulf of Corinth. This 4 km thinning is unlikely to be the result of the rifting alone, which seems to have been reactivated since only 1 Ma. We propose here a geodynamical scenario in two major steps to explain the evolution of Corinth area. Aegean Miocene extension involving boudinage resulted in periodic crustal thinning, consistent with observations. These lithospheric instabilities could have favoured rupture initiation in particular areas, especially near the city of Corinth. Then, the reactivation of the Corinth Rift extension, 1 Myr ago, led to westward rift propagation. The offset observed between the maximum crustal thinning and the Gulf of Corinth could be accommodated by a low-angle normal fault at about 10–15 km depth. The Corinth Rift is thus asymmetrical and was initiated in places of crustal weakness due to Miocene lithospheric instabilities

Moho topography beneath the Corinth Rift area (Greece) from inversion of gravity data

moho topography beneath the corinth rift area (greece) from inversion of gravity data

audienceour rifting moho beneath corinth evvia. inversion corinth evvia rift independently teleseismic tomography receiver analyses. crustal thickening beneath hellenides mountains nw–se trending crustal thinning crustal thinning gulf corinth. thinning unlikely rifting reactivated propose geodynamical corinth area. aegean miocene involving boudinage resulted crustal thinning observations. lithospheric instabilities favoured rupture initiation city corinth. reactivation corinth rift westward rift propagation. offset crustal thinning gulf corinth accommodated fault depth. corinth rift asymmetrical initiated places crustal weakness miocene lithospheric instabilities

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52717348

10.1016/j.gr.2015.02.002

International audienceObduction emplaces regional-scale fragments of oceanic lithosphere (ophiolites) over continental lithosphere margins of much lower density. For this reason, the mechanisms responsible for obduction remain enigmatic in the framework of plate tectonics. We present two-dimensional (2D) thermo-mechanical models of obduction and investigate possible dynamics and physical controls of this process. Model geometry and boundary conditions are based on available geological and geochronological data and numerical modeling results are validated against petrological and structural observations of the Oman (Semail) Ophiolite. Our model reproduces the stages of oceanic subduction initiation away from the Arabian margin, the emplacement of the Oman Ophiolite on top of it, and the domal exhumation of the metamorphosed margin through the ophiolitic nappe. A systematic study indicates that 350-400 km of bulk shortening provides the best fit for both the maximum Pressure-Temperature conditions of the metamorphosed margin (1.5-2.5 GPa / 450-600°C) and the dimension of the ophiolitic nappe (~ 170 km width). Our results confirm that a thermal anomaly located close to the Arabian margin (~ 100 km) is needed to initiate obduction. We further suggest that a strong continental basement rheology is a prerequisite for ophiolite emplacement

Thermo-mechanical modeling of the obduction process based on the Oman ophiolite case

thermo-mechanical modeling of the obduction process based on the oman ophiolite case

audienceobduction emplaces fragments oceanic lithosphere ophiolites continental lithosphere margins density. obduction enigmatic plate tectonics. thermo obduction process. geological geochronological validated petrological oman semail ophiolite. reproduces oceanic subduction initiation away arabian margin emplacement oman ophiolite domal exhumation metamorphosed margin ophiolitic nappe. shortening metamorphosed margin ophiolitic nappe confirm anomaly arabian margin initiate obduction. continental basement rheology prerequisite ophiolite emplacement

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52718572

10.1016/j.quascirev.2014.01.002

International audiencea journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues. Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: a b s t r a c t From the 1st century AD and for the duration of the Roman Empire, the Portus complex was the main harbor of Rome. Its location on the Tiber delta next to the Tyrrhenian Sea produced rapid environmental changes that, together with historical vicissitudes, largely determined the fate of the harbor. We have assembled data on the mineralogy, sedimentology, geochemistry, and ostracod populations of a sediment core drilled in the access channel of the hexagonal basin of Trajan, with the expectation that such a combined data set will shed new light on how the connections of the inland Trajan basin with the Tiber river, the earlier Claudius harbor on the nearby shoreline, and the sea evolved through the centuries. The data define four distinct periods which geochemistry characterizes by different conditions of salinity and oxygenation. These in turn can be related to historical periods and events by means of 1

Geochemical investigation of a sediment core from the Trajan basin at Portus, the harbor of ancient Rome

geochemical investigation of a sediment core from the trajan basin at portus, the harbor of ancient rome

audiencea elsevier. attached copy furnished commercial instruction institution sharing colleagues. reproduction selling licensing copies posting personal institutional party websites prohibited. permitted e.g. word personal website institutional repository. requiring archiving policies encouraged visit century roman empire portus harbor rome. tiber delta tyrrhenian historical vicissitudes largely fate harbor. assembled mineralogy sedimentology geochemistry ostracod sediment drilled hexagonal basin trajan expectation shed connections inland trajan basin tiber river claudius harbor nearby shoreline evolved centuries. geochemistry characterizes salinity oxygenation. historical

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52732028

10.1016/j.epsl.2011.11.017

International audienceThe ~65-myr-long Cenozoic carbon isotope record (δ13C) of Zachos et al. (2001, 2008) documents a strong long-term cycle with a mean pseudoperiodicity close to ~ 9 myr. This cyclicity modulates the ~ 2.4 myr eccentricity cycle amplitude, hinting at a possible link between long-term astronomical and geological variations. Some phase shifts between ~9-myr δ13C and astronomical cycles suggest that additional processes (e.g., tectonics) contribute to these long-term carbon-cycle variations. The strong response of δ13C to long-term eccentricity periods (~9 myr, ~2.4 myr, ~400 kyr) supports the hypothesis that the long time-residence of carbon in the oceans amplifies lower frequency or dampens higher frequency orbital variations. Additionally, the strong expression of low-amplitude ~9 myr eccentricity cycle in theδ13C record could be explained by energy-transfer process from higher to lower frequency cycles, and all eccentricity components modulate the carrier climatic precession cycles. Finally, the Paleocene-Eocene Thermal Maximum (PETM, 55.9 Ma) event, which corresponds to a pronounced δ13C negative excursion, is situated within a strong decrease in the most prominent ~9 myr δ13C cycle, hinting at a link between accelerated rates in δ13C variations and the PETM. This specific ~9 myr δ13C cycle seems to be amplified by non-orbital mechanisms in atmosphere-continent-ocean system, such as previously suggested methane release from gas hydrate and volcanism

A ~9 myr cycle in Cenozoicδ13C record and long-term orbital eccentricity modulation: Is there a link?

a ~9 myr cycle in cenozoicδ13c record and long-term orbital eccentricity modulation: is there a link?

audiencethe cenozoic isotope record zachos documents pseudoperiodicity myr. cyclicity modulates eccentricity hinting astronomical geological variations. shifts astronomical cycles e.g. tectonics variations. eccentricity supports residence oceans amplifies dampens orbital variations. additionally eccentricity theδ record cycles eccentricity modulate carrier climatic precession cycles. paleocene eocene petm pronounced excursion situated prominent hinting accelerated petm. amplified orbital atmosphere continent ocean methane hydrate volcanism

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52759762

10.1016/j.jconhyd.2006.07.005

International audienceThe Time Domain Random Walk (TDRW) method has been recently developed by Delay and Bodin (2001) and Bodin et al. (2003c) for simulating solute transport in discrete fracture networks. It is assumed that the fracture network can reasonably be represented by a network of interconnected one-dimensional pipes (i.e. flow channels). Processes accounted for are: (1) advection and hydrodynamic dispersion in the channels, (2) matrix diffusion, (3) diffusion into stagnant zones within the fracture planes, (4) sorption reactions onto the fracture walls and in the matrix, (5) linear decay, and (6) mass sharing at fracture intersections. The TDRW method is handy and very efficient in terms of computation costs since it allows for the one-step calculation of the particle residence time in each bond of the network. This method has been programmed in C++, and efforts have been made to develop an efficient and user-friendly software, called SOLFRAC. This program is freely downloadable at the URL http://labo.univ-poitiers.fr/hydrasa/intranet/telechargement.htm. It calculates solute transport into 2D pipe networks, while considering different types of injections and different concepts of local dispersion within each flow channel. Post-simulation analyses are also available, such as the mean velocity or the macroscopic dispersion at the scale of the entire network. The program may be used to evaluate how a given transport mechanism influences the macroscopic transport behaviour of fracture networks. It may also be used, as is the case, e.g., with analytical solutions, to interpret laboratory or field tracer test experiments performed in single fractures

Simulation and analysis of solute transport in 2D fracture/pipe networks: The SOLFRAC program

simulation and analysis of solute transport in 2d fracture/pipe networks: the solfrac program

audiencethe walk tdrw delay bodin bodin simulating solute fracture networks. fracture reasonably interconnected pipes i.e. accounted advection hydrodynamic stagnant zones fracture planes sorption fracture walls sharing fracture intersections. tdrw handy residence bond network. programmed efforts friendly solfrac. freely downloadable labo.univ .htm. calculates solute pipe injections concepts channel. macroscopic network. influences macroscopic fracture networks. e.g. interpret tracer fractures

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52760324

10.1016/j.crte.2007.03.002

International audienceSubfossil chironomid assemblages spanning the last Interglacial/Glacial transition at Les Échets (France) highlight the environmental and climatic changes that took place at this crucial period. The Early Eemian warming is marked by increased percentages of warmwater taxa and decreased percentages of coldwater taxa. In the Middle Eemian, a lowering in water level is indicated by a rise of littoral taxa. In the Late Eemian, chironomids indicate anoxic deep waters and rise of water level, probably induced by increased rainfall. Mélisey I and II and the beginning of the glacial period are marked by the reappearance of coldwater taxa, lower percentages of warmwater taxa, and dominance of littoral taxa, probably correlated with lower water level and climate aridity. St Germain I and II are marked by higher percentages of warmwater taxa, lower percentages, or absence of both coldwater and littoral taxa

Past environment and climate changes at the last Interglacial/Glacial transition (Les Échets, France) inferred from subfossil chironomids (Insecta)

past environment and climate changes at the last interglacial/glacial transition (les échets, france) inferred from subfossil chironomids (insecta)

audiencesubfossil chironomid assemblages spanning interglacial glacial échets highlight climatic took crucial period. eemian warming marked percentages warmwater taxa percentages coldwater taxa. eemian lowering littoral taxa. eemian chironomids anoxic waters probably rainfall. mélisey beginning glacial marked reappearance coldwater taxa percentages warmwater taxa dominance littoral taxa probably aridity. germain marked percentages warmwater taxa percentages coldwater littoral taxa

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52806266

10.1088/0960-1317/16/2/031

A method for simulating the large-displacement actuation of deformable micro-structures is proposed and illustrated in the case of a circular axisymmetric plate. First of all the problem is formulated and its boundary conditions are expressed as functions of the two unknowns, displacements and the Airy stress function. The problem is then split into two parts, each part corresponding to one equation of Von Karman, to which the techniques of modal analysis are applied in order to obtain a set of nonlinear ordinary differential equations. The implementation of the resulting high-level model is then discussed and some simulation results are given, as a basis for comparison

Modelling of nonlinear circular plates using modal analysis: simulation and model validation

modelling of nonlinear circular plates using modal analysis: simulation and model validation

simulating displacement actuation deformable micro illustrated circular axisymmetric plate. formulated unknowns displacements airy function. split karman modal ordinary equations.

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52857037

10.1007/s00421-009-1009-6

International audienceCardiovascular deconditioning after long duration spaceflight is especially challenging in women who have a lower orthostatic tolerance (OT) compared with men. We hypothesized that an exercise prescription, combining supine aerobic treadmill exercise in a lower body negative pressure (LBNP) chamber followed by 10 min of resting LBNP, three to four times a week, and flywheel resistive training every third day would maintain orthostatic tolerance (OT) in women during a 60-day head-down-tilt bed rest (HDBR). Sixteen women were assigned to two groups (exercise, control). Pre and post HDBR OT was assessed with a tilt/LBNP test until presyncope. OT time (mean +/- SE) decreased from 17.5 +/- 1.0 min to 9.1 +/- 1.5 min (-50 +/- 6%) in control group (P < 0.001) and from 19.3 +/- 1.3 min to 13.0 +/- 1.9 min (-35 +/- 7%) in exercise group (P < 0.001), with no significant difference in OT time between the two groups after HDBR (P = 0.13). Nevertheless, compared with controls post HDBR, exercisers had a lower heart rate during supine rest (mean +/- SE, 71 +/- 3 vs. 85 +/- 4, P < 0.01), a slower increase in heart rate and a slower decrease in stroke volume over the course of tilt/LBNP test (P < 0.05). Blood volume (mean +/- SE) decreased in controls (-9 +/- 2%, P < 0.01) but was maintained in exercisers (-4 +/- 3%, P = 0.17).Our results suggest that the combined exercise countermeasure did not significantly improve OT but protected blood volume and cardiovascular response to sub tolerance levels of orthostatic stress

WISE-2005: effect of aerobic and resistive exercises on orthostatic tolerance during 60 days bed rest in women. : Exercise Countermeasures and Orthostatic Intolerance

wise-2005: effect of aerobic and resistive exercises on orthostatic tolerance during 60 days bed rest in women. : exercise countermeasures and orthostatic intolerance

audiencecardiovascular deconditioning spaceflight challenging orthostatic tolerance men. hypothesized exercise prescription combining supine aerobic treadmill exercise lbnp chamber resting lbnp week flywheel resistive maintain orthostatic tolerance tilt hdbr sixteen assigned exercise hdbr tilt lbnp presyncope. exercise hdbr nevertheless hdbr exercisers supine slower slower stroke tilt lbnp maintained exercisers .our exercise countermeasure protected cardiovascular tolerance orthostatic

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52952797

10.1073/pnas.1222471110

The impacts of global climate change on different aspects of humanity's diverse life-support systems are complex and often difficult to predict. To facilitate policy decisions on mitigation and adaptation strategies, it is necessary to understand, quantify, and synthesize these climate-change impacts, taking into account their uncertainties. Crucial to these decisions is an understanding of how impacts in different sectors overlap, as overlapping impacts increase exposure, lead to interactions of impacts, and are likely to raise adaptation pressure. As a first step we develop herein a framework to study coinciding impacts and identify regional exposure hotspots. This framework can then be used as a starting point for regional case studies on vulnerability and multifaceted adaptation strategies. We consider impacts related to water, agriculture, ecosystems, and malaria at different levels of global warming. Multisectoral overlap starts to be seen robustly at a mean global warming of 3 degrees C above the 1980-2010 mean, with 11% of the world population subject to severe impacts in at least two of the four impact sectors at 4 degrees C. Despite these general conclusions, we find that uncertainty arising from the impact models is considerable, and larger than that from the climate models. In a low probability-high impact worst-case assessment, almost the whole inhabited world is at risk for multisectoral pressures. Hence, there is a pressing need for an increased research effort to develop a more comprehensive understanding of impacts, as well as for the development of policy measures under existing uncertainty

Multisectoral climate impact hotspots in a warming world

multisectoral climate impact hotspots in a warming world

impacts humanity diverse predict. facilitate decisions mitigation adaptation quantify synthesize impacts uncertainties. crucial decisions impacts sectors overlap overlapping impacts impacts raise adaptation pressure. herein coinciding impacts hotspots. vulnerability multifaceted adaptation strategies. impacts agriculture ecosystems malaria warming. multisectoral overlap starts robustly warming impacts sectors arising considerable models. worst inhabited multisectoral pressures. pressing effort comprehensive impacts

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53007847

10.1016/j.jnucmat.2012.09.034

This paper is devoted to the iron corrosion phenomena induced by the α (4He2+) water radiolysis species studied in conjunction with the production/consumption of H2 at the solid/solution interface. On one hand, the solid surface is characterized during the 4He2+ ions irradiation by in situ Raman spectroscopy; on another hand, the H2 gas produced by the water radiolysis is monitored by ex situ gas measurements. The 4He2+ ions irradiation experiments are provided either by the CEMHTI (E = 5.0 MeV) either by the ARRONAX (E = 64.7 MeV) cyclotron facilities. The iron corrosion occurs only under irradiation and can be slowed down by H2 reductive atmosphere. Pure iron and carbon steel solids are studied in order to show two distinct behaviors of these surfaces vs. the 4He2+ ions water irradiation: the corrosion products identified are the magnetite phase (Fe(II)Fe(III)2O4) correlated to an H2 consumption for pure iron and the lepidocrocite phase (γ-Fe(III)OOH) correlated to an H2 production for carbon steel sample. This paper underlined the correlation between the iron corrosion products formation onto the solid surface and the H2 production/consumption mechanisms. H2O2 species is considered as the single water radiolytic species involved into the corrosion reaction at the solid surface with an essential role in the oxidation reaction of the iron surface. We propose to bring some light to these mechanisms, in particular the H2 and H2O2 roles, by the in situ Raman spectroscopy during and after the 4He2+ ions beam irradiation. This in situ experiment avoids the evolution of the solid surface, in particular phases which are reactive to the oxidation processing

Alpha localized radiolysis and corrosion mechanisms at the iron/water interface: Role of molecular species

alpha localized radiolysis and corrosion mechanisms at the iron/water interface: role of molecular species

devoted iron corrosion phenomena radiolysis conjunction interface. irradiation situ raman spectroscopy radiolysis monitored situ measurements. irradiation cemhti arronax cyclotron facilities. iron corrosion irradiation slowed reductive atmosphere. iron steel solids behaviors irradiation corrosion magnetite iron lepidocrocite steel sample. underlined iron corrosion mechanisms. radiolytic corrosion oxidation iron surface. propose bring roles situ raman spectroscopy irradiation. situ avoids reactive oxidation

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53169459

10.1007/s10834-008-9112-0

We empirically analyzed the labor market participation of Italian women, with special emphasis on the role of intergenerational family links. Older relatives, on the one hand, discourage the work participation of women by requiring care; on the other hand they may provide household services favoring labor supply. We studied this dual impact estimating a trivariate probit model where the three choices to be in the labor force, to use informal help from older relatives and to care for them are jointly determined. Our estimates show that care duties towards members of the previous generation hinder the labor market participation of Italian women, and that informal help received from older relatives strongly increases their probability of being engaged in paid work

The labor market participation of sandwich generation Italian women

the labor market participation of sandwich generation italian women

empirically labor participation italian emphasis intergenerational links. older relatives discourage participation requiring household favoring labor supply. estimating trivariate probit choices labor informal older relatives jointly determined. duties hinder labor participation italian informal older relatives engaged paid

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71039449

10.1016/S0550-3213(99)00070-X

Data from atmospheric and solar neutrinos indicate that there are at least three neutrino types involved in oscillation phenomena. Even if the corresponding neutrino mass scales are very different, the inevitable reference to mixing between more than two neutrino types has profound consequences on the planning of the accelerator experiments suggested by these results. We discuss the measurement of mixing angles and CP phases in the context of the neutrino beam emanating from a {\it neutrino factory}: the straight sections of a muon storage ring. We emphasize the importance of charge identification. The appearance of wrong sign muons in a long baseline experiment may provide a powerful test of neutrino oscillations in the mass-difference range indicated by atmospheric-neutrino observations

Neutrino oscillation physics with a neutrino factory

neutrino oscillation physics with a neutrino factory

neutrinos oscillation phenomena. inevitable profound consequences planning accelerator results. angles emanating factory straight muon storage ring. emphasize identification. appearance wrong muons powerful oscillations

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77222199

10.1016/j.irfa.2015.01.005

Abstract Sentiment is shown to influence both West Texas Intermediate (WTI) and Brent futures prices during the period 2002 - 2013. This is demonstrated while controlling for stock indices, exchange rates, financial costs, inventory and supply levels as well as OPEC activity. Sentiment indices are developed for WTI and Brent crude oils using a suite of financial proxies similar to those used in equity research where the influence of sentiment has already been established. Given the novel nature of this study, multiple hypothesis testing techniques are used to ensure that these conclusions are statistically robust

Sentiment in oil markets

sentiment in oil markets

sentiment west texas brent futures prices controlling stock indices inventory supply opec activity. sentiment indices brent crude oils suite proxies equity sentiment established. ensure statistically robust

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78473070

10.1002/1873-3468.12204

Loss-of-function mutations in the gene encoding GLUT10 are responsible for arterial tortuosity syndrome (ATS), a rare connective tissue disorder. In this study GLUT10-mediated dehydroascorbic acid (DAA) transport was investigated, supposing its involvement in the pathomechanism. GLUT10 protein produced by in vitro translation and incorporated into liposomes efficiently transported DAA. Silencing of GLUT10 decreased DAA transport in immortalized human fibroblasts whose plasma membrane was selectively permeabilized. Similarly, the transport of DAA through endomembranes was markedly reduced in fibroblasts from ATS patients. Re-expression of GLUT10 in patients' fibroblasts restored DAA transport activity. The present results demonstrate that GLUT10 is a DAA transporter and DAA transport is diminished in the endomembranes of fibroblasts from ATS patients

Glucose transporter type 10-lacking in arterial tortuosity syndrome-facilitates dehydroascorbic acid transport

glucose transporter type 10-lacking in arterial tortuosity syndrome-facilitates dehydroascorbic acid transport

encoding glut arterial tortuosity syndrome rare connective disorder. glut dehydroascorbic supposing involvement pathomechanism. glut translation incorporated liposomes efficiently transported daa. silencing glut immortalized fibroblasts selectively permeabilized. endomembranes markedly fibroblasts patients. glut fibroblasts restored activity. glut transporter diminished endomembranes fibroblasts

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80526843

10.1016/j.jmva.2013.02.001

The degrees of freedom of semiparametric additive monotone models are derived using results about projections onto sums of order cones. Two important related questions are also studied, namely, the de nition of estimators for the parameter of the error term and the formulation of speci c Akaike Information Criteria statistics. Several alternatives are proposed to solve both problems and simulation experiments are conducted to compare the behavior of the di erent candidates. A new selection criterion is proposed that combines the ability to guess the model but also the e ciency to estimate the variance parameter. Finally, the criterion is used to select the model in a regression problem from a well known data set.Ministerio de Ciencia e Innovación grant (MTM2012-37129

Degrees of freedom and model selection in semiparametric additive monotone regression

degrees of freedom and model selection in semiparametric additive monotone regression

freedom semiparametric additive monotone projections sums cones. nition estimators formulation speci akaike statistics. alternatives solve erent candidates. criterion combines guess ciency parameter. criterion select set.ministerio ciencia innovación

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83116536

10.1016/j.eurpolymj.2017.01.028

Zn-Co double metal cyanide (DMC) catalysts were prepared by varying the initial amounts of ZnCl2 to analyze the influence of method of preparation on the different copolymerization parameters. Synthesized catalysts were analyzed by different techniques, infrared spectrometry and inductively coupled plasma optical emission spectrometry, scanning electron microscopy, N2-physisorption and X-ray diffraction to determine whether characteristics affect the catalytic activity. The copolymers were characterized by infrared spectrometry and gel permeation chromatography. Highly active catalyst (2.5 kg polymer/g catalyst) was synthesized, low amounts of cyclic carbonate byproduct were produced (0.4 %) with medium crystallinity catalysts and considerable amounts of K+ (0.4% to 1.0%wt).CTQ2015-64892-R (MINECO/FEDER

Effect of Zn/Co initial preparation ratio in the activity of Double Metal Cyanide catalysts for propylene oxide and CO2 copolymerization

effect of zn/co initial preparation ratio in the activity of double metal cyanide catalysts for propylene oxide and co2 copolymerization

cyanide catalysts amounts zncl analyze preparation copolymerization parameters. synthesized catalysts infrared spectrometry inductively spectrometry scanning microscopy physisorption diffraction catalytic activity. copolymers infrared spectrometry permeation chromatography. catalyst polymer catalyst synthesized amounts cyclic carbonate byproduct crystallinity catalysts considerable amounts .ctq mineco feder

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84138668

10.1016/j.jfluidstructs.2014.09.007

A fully coupled electro-fluid-elastic model for electromagnetic energy harvesting from Transverse Galloping is presented here. The model considers a one degree-of-freedom galloping oscillator where fluid forces are described resorting to quasi-steady conditions; the electromagnetic generator is modelled by an equivalent electrical circuit where power is dissipated at an electrical load resistance; the galloping oscillator and the electromagnetic model are coupled appropriately. Two different levels of simplification have been made depending on the comparison between the characteristic electrical and mechanical timescales. The effect of the electrical resistance load on the energy harvested is studied theoretically. For fixed geometry and mechanical parameters, it has been found that there exists an optimal electrical resistance load for each reduced velocity. On the practical side, this result can be helpful to design tracking-point strategies to maximize energy harvesting for variable flow velocity conditions

Optimal electromagnetic energy extraction from transverse galloping

optimal electromagnetic energy extraction from transverse galloping

electro elastic electromagnetic harvesting galloping here. considers freedom galloping oscillator forces resorting quasi steady electromagnetic generator modelled electrical circuit dissipated electrical galloping oscillator electromagnetic appropriately. simplification electrical timescales. electrical harvested theoretically. electrical velocity. practical helpful tracking maximize harvesting

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86410323

10.1093/gji/ggu450

Converted phase (CP) elastic seismic signals are comparable in amplitude to the primary signals recorded at large offsets and have the potential to be used in seismic imaging and velocity analysis. We present an approach for CP elastic wave equation velocity analysis that does not use source information and is applicable to surface-seismic, microseismic, teleseismic and vertical seismic profile (VSP) studies. Our approach is based on the cross-correlation between reflected or transmitted PP and CP PS (and/or SS and CP SP) waves propagated backward in time, and is formulated as an optimization problem with a differential semblance criterion objective function for the simultaneous update of both P- and S-wave velocity models. The merit of this approach is that it is fully data-driven, uses full waveform information, and requires only one elastic backward propagation to form an image rather than the two (one forward and one backward) propagations needed for standard reverse-time migration. Moreover, as the method does not require forward propagation, it does not suffer from migration operator source aliasing when a small number of shots are used. We present a derivation of the method and test it with a synthetic model and field micro-seismic data

Source-independent full wavefield converted-phase elastic migration velocity analysis

source-independent full wavefield converted-phase elastic migration velocity analysis

converted elastic seismic comparable offsets seismic analysis. elastic applicable seismic microseismic teleseismic seismic studies. reflected transmitted propagated backward formulated semblance criterion simultaneous update models. merit waveform elastic backward propagation backward propagations reverse migration. propagation suffer migration aliasing shots used. derivation synthetic micro seismic

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11267570

10.1038/jid.2008.433

We have previously shown that Wnt5A and ROR2, an orphan tyrosine kinase receptor, interact to mediate melanoma cell motility. In other cell types, this can occur through the interaction of ROR2 with the cytoskeletal protein filamin A. Here, we found that filamin A protein levels correlated with Wnt5A levels in melanoma cells. Small interfering RNA (siRNA) knockdown of WNT5A decreased filamin A expression. Knockdown of filamin A also corresponded to a decrease in melanoma cell motility. In metastatic cells, filamin A expression was predominant in the cytoplasm, which western analysis indicated was due to the cleavage of filamin A in these cells. Treatment of nonmetastatic melanoma cells with recombinant Wnt5A increased filamin A cleavage, and this could be prevented by the knockdown of ROR2 expression. Further, BAPTA-AM chelation of intracellular calcium also inhibited filamin A cleavage, leading to the hypothesis that Wnt5A/ROR2 signaling could cleave filamin A through activation of calcium-activated proteases, such as calpains. Indeed, WNT5A knockdown decreased calpain 1 expression, and by inhibiting calpain 1 either pharmacologically or using siRNA, it decreased cell motility. Our results indicate that Wnt5A activates calpain-1, leading to the cleavage of filamin A, which results in a remodeling of the cytoskeleton and an increase in melanoma cell motility

Wnt5A activates the calpain-mediated cleavage of filamin A

wnt5a activates the calpain-mediated cleavage of filamin a

orphan tyrosine interact mediate melanoma motility. cytoskeletal filamin filamin melanoma cells. interfering sirna knockdown filamin expression. knockdown filamin corresponded melanoma motility. metastatic filamin predominant cytoplasm cleavage filamin cells. nonmetastatic melanoma recombinant filamin cleavage prevented knockdown expression. bapta chelation intracellular calcium inhibited filamin cleavage cleave filamin calcium proteases calpains. knockdown calpain inhibiting calpain pharmacologically sirna motility. activates calpain cleavage filamin remodeling cytoskeleton melanoma motility

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11310404

10.1016/j.aca.2011.05.019

A new system for CO2 measurement (0-100%) by based on a paired emitter-detector diode arrangement as a colorimetric detection system is described. Two different configurations were tested: configuration 1 (an opposite side configuration) where a secondary inner-filter effect accounts for CO2 sensitivity. This configuration involves the absorption of the phosphorescence emitted from a CO2-insensitive luminophore by an acid-base indicator and configuration 2 wherein the membrane containing the luminophore is removed, simplifying the sensing membrane that now only contains the acid-base indicator. In addition, two different instrumental configurations have been studied, using a paired emitter-detector diode system, consisting of two LEDs wherein one is used as the light source (emitter) and the other is used in reverse bias mode as the light detector. The first configuration uses a green LED as emitter and a red LED as detector, whereas in the second case two identical red LEDs are used as emitter and detector. The system was characterised in terms of sensitivity, dynamic response, reproducibility, stability and temperature influence. We found that configuration 2 presented a better CO2 response in terms of sensitivity

A new LED-LED portable CO2 gas sensor based on an interchangeable membrane system for industrial applications

a new led-led portable co2 gas sensor based on an interchangeable membrane system for industrial applications

paired emitter diode arrangement colorimetric described. configurations opposite filter accounts sensitivity. involves phosphorescence emitted insensitive luminophore indicator wherein luminophore removed simplifying sensing indicator. instrumental configurations paired emitter diode consisting leds wherein emitter reverse detector. emitter leds emitter detector. characterised reproducibility influence.

exact_dup

11739668

10.1007/s10686-011-9237-2

High-time-resolution X-ray observations of compact objects provide direct access to strong-field gravity, to the equation of state of ultradense matter and to black hole masses and spins. A 10 m2-class instrument in combination with good spectral resolution is required to exploit the relevant diagnostics and answer two of the fundamental questions of the European Space Agency (ESA) Cosmic Vision Theme "Matter under extreme conditions", namely: does matter orbiting close to the event horizon follow the predictions of general relativity? What is the equation of state of matter in neutron stars? The Large Observatory For X-ray Timing (LOFT), selected by ESA as one of the four Cosmic Vision M3 candidate missions to undergo an assessment phase, will revolutionise the study of collapsed objects in our galaxy and of the brightest supermassive black holes in active galactic nuclei. Thanks to an innovative design and the development of large-area monolithic silicon drift detectors, the Large Area Detector (LAD) on board LOFT will achieve an effective area of ~12 m2 (more than an order of magnitude larger than any spaceborne predecessor) in the 2-30 keV range (up to 50 keV in expanded mode), yet still fits a conventional platform and small/medium-class launcher. With this large area and a spectral resolution of <260 eV, LOFT will yield unprecedented information on strongly curved spacetimes and matter under extreme conditions of pressure and magnetic field strength

The large observatory for x-ray timing (LOFT)

the large observatory for x-ray timing (loft)

ultradense spins. instrument exploit diagnostics answer agency cosmic vision theme extreme orbiting horizon relativity neutron observatory timing loft cosmic vision candidate missions undergo revolutionise collapsed brightest supermassive holes galactic nuclei. thanks innovative monolithic silicon drift detectors board loft spaceborne predecessor expanded fits platform launcher. loft unprecedented curved spacetimes extreme

exact_dup

11992495

10.1016/j.ymssp.2007.10.004

This study aims to develop a multistage scheme for damage detection for large structures based on experimental modal data and on finite element (FE) model updating methods applied on simple FE models. In the first stage, occurrence and approximate location of damage is performed by using damage functions in order to decrease the number of parameters to be updated. The goal in the second stage is to identify the specific damaged members and damage extent by considering only the members belonging to the regions detected as damage in the first stage. To improve identification, the optimization procedure is formulated in a multiobjective context solved by using evolutionary algorithms. Modal flexibilities and a damage location criterion dependent on frequencies and mode shapes are used as two objective functions of the multiobjective problem. The proposal is implemented in simulated case studies and in a case study of a real bridge experimentally tested with successful results

A multistage FE updating procedure for damage identification in large-scale structures based on multiobjective evolutionary optimization

a multistage fe updating procedure for damage identification in large-scale structures based on multiobjective evolutionary optimization

aims multistage modal updating models. occurrence approximate updated. goal damaged belonging stage. formulated multiobjective solved evolutionary algorithms. modal flexibilities criterion shapes multiobjective problem. proposal implemented bridge experimentally successful

exact_dup

11994899

10.1016/S0031-9422(00)94419-4

Free and conjugated sterols of endosperm, coats, scutellum, coleoptile and roots have been analysed at different germination stages in two wheat cultivars with different endosperm sterol phenotypes. It seems that sterol metabolism of the developing tissues, namely coleoptile and roots, is not affected by the sterol conjugation profile of the endosperm. Enough sterol is present in the mature embryo to supply the germinating axis during the observation period (144 hr at 16°). The data suggest that sterol is transferred from scutellum to coleoptile and roots during germinatio

Endosperm sterol phenotype and germination in wheat

endosperm sterol phenotype and germination in wheat

conjugated sterols endosperm coats scutellum coleoptile roots analysed germination wheat cultivars endosperm sterol phenotypes. sterol metabolism tissues coleoptile roots sterol conjugation endosperm. sterol mature embryo supply germinating sterol transferred scutellum coleoptile roots germinatio

exact_dup

11997125

10.1016/j.cemconres.2009.11.008

One of the most accepted engineering construction concepts of underground repositories for high radioactive waste considers the use of low-pH cementitious materials. This paper deals with the design of those based on Ordinary Portland Cements with high contents of silica fume and/or fly ashes that modify most of the concrete “standard” properties, the pore fluid composition and the microstructure of the hydrated products. Their resistance to long-term groundwater aggression is also evaluated. The results show that the use of OPC cement binders with high silica content produces low-pH pore waters and the microstructure of these cement pastes is different from the conventional OPC ones, generating C–S–H gels with lower CaO/SiO2 ratios that possibly bind alkali ions. Leaching tests show a good resistance of low-pH concretes against groundwater aggression although an altered front can be observe

Development of low-pH cementitious materials for HLRW repositories. Resistance against ground waters aggression

development of low-ph cementitious materials for hlrw repositories. resistance against ground waters aggression

concepts underground repositories radioactive waste considers cementitious materials. deals ordinary portland cements contents silica fume ashes modify concrete “standard” pore microstructure hydrated products. groundwater aggression evaluated. cement binders silica produces pore waters microstructure cement pastes generating c–s–h gels possibly bind alkali ions. leaching concretes groundwater aggression altered front

exact_dup

12016596

10.1016/j.labeco.2009.11.003

This paper presents instrumental variables estimates of the effects of firm tenure, occupation specific work experience, industry specific work experience, and general work experience on wages using data from the 1979 Cohort of the National Longitudinal Survey of Youth. A key feature of the empirical work presented in this paper is that the returns to human capital are allowed to vary across occupations, in contrast to existing research which has constrained the parameters of the wage equation to be the same across occupations. The estimates indicate that both occupation and industry specific human capital are key determinants of wages, and the importance of various types of human capital varies widely across one-digit occupations. Human capital is primarily occupation specific in occupations such as craftsmen, where workers realize a 14% increase in wages after five years of occupation specific experience but do not realize wage gains from industry specific experience. In contrast, human capital is primarily industry specific in other occupations such as managerial employment where workers realize a 23% wage increase after five years of industry specific work experience. In other occupations, such as professional employment, both occupation and industry specific human capital are key determinants of wages.

Empirical Evidence on Occupation and Industry Specific Human Capital

empirical evidence on occupation and industry specific human capital

presents instrumental firm tenure occupation wages cohort longitudinal youth. returns capital vary occupations constrained wage occupations. occupation capital determinants wages capital varies widely digit occupations. capital primarily occupation occupations craftsmen workers realize wages occupation realize wage gains experience. capital primarily occupations managerial employment workers realize wage experience. occupations professional employment occupation capital determinants wages.

exact_dup

12163296

10.1016/0005-2728(93)90090-3

The spontaneous emission of reaction centers from native and mutated Rhodobacter sphaeroides and from wild type Chloroflexus aurantiacus is investigated by fluorescence up-conversion with high temporal resolution. The time constant of 0.9 ps previously observed in transient absorption experiments on wild type reaction centers of Rhodobacter sphaeroides does not appear in the emission experiment. However, all investigated reaction centers display a biexponential decay of the emission with time constants in the 2 ps to 25 ps range. The experimental results are discussed within the frame of different reaction models including a possible sample heterogeneity or a transient electron transfer to the inactive pigment branch.

Subpicosecond emission studies of bacterial reaction centers

subpicosecond emission studies of bacterial reaction centers

spontaneous centers native mutated rhodobacter sphaeroides chloroflexus aurantiacus fluorescence conversion resolution. transient centers rhodobacter sphaeroides experiment. centers display biexponential range. heterogeneity transient inactive pigment branch.

exact_dup

143695156

10.1080/1539445X.2014.959597

Size effects in a system composed of a polymer matrix with a single silica nanoparticle are studied using molecular dynamics and surface-enhanced continuum approaches. The dependence of the composite’s mechanical properties on the nanoparticle’s radius was examined. Mean values of the elastic moduli obtained using molecular dynamics were found to be lower than those of the polystyrene matrix alone. The surface-enhanced continuum theory produced a satisfactory fit of macroscopic stresses developing during relaxation due to the interface tension and uniaxial deformation. Neither analytical nor finite-element solutions correlated well with the size-effect in elastic moduli predicted by the molecular dynamics simulations.German Science Foundation within the priority program 1369 “Polymer-solid contacts: Interphases and interfaces”, ERC Advanced Grant MOCOPOLY

Size Effects in a Silica-Polystyrene Nanocomposite: Molecular Dynamics and Surface-enhanced Continuum Approaches

size effects in a silica-polystyrene nanocomposite: molecular dynamics and surface-enhanced continuum approaches

composed polymer silica nanoparticle continuum approaches. composite’s nanoparticle’s examined. elastic moduli polystyrene alone. continuum satisfactory macroscopic stresses relaxation tension uniaxial deformation. neither elastic moduli simulations.german foundation priority “polymer contacts interphases interfaces” advanced mocopoly

exact_dup

144012829

10.1002/ajhb.20819

Population samples from Angola, Mozambique, and S. Tomé e Príncipe were screened for the TPI gene promoter variants -5ArarrG, -8GrarrA and -24TrarrG. Three haplotypes were identified in the three populations: the haplotype -5A-8G-24T (average frequency 65.3%) and two less common haplotypes -5G-8G-24T (average frequency 24.7%) and -5G-8A-24T (average frequency 10.0%). A population sample from Central Portugal showed the haplotype -5A-8G-24T in 139 chromosomes and one subject heterozygous for haplotype -5G-8A-24G. The exact test of sample differentiation among three groups of malaria-infected individuals classified according to the severity of the disease showed no significant differences. We confirmed TPI gene diversity in sub-Saharan Africa, but we could not detect any association between TPI promoter variation and a malarial protective effect. Larger scale epidemiological studies are thus required to clarify this putative mechanism of natural host defense against this worldwide public health problemhttp://dx.doi.org/10.1002/ajhb.2081

Analysis of TPI gene promoter variation in three sub-Saharan Africa population samples

analysis of tpi gene promoter variation in three sub-saharan africa population samples

angola mozambique tomé príncipe screened promoter variants ararrg grarra trarrg. haplotypes haplotype haplotypes portugal haplotype chromosomes heterozygous haplotype malaria classified severity differences. confirmed diversity saharan africa detect promoter malarial protective effect. epidemiological clarify putative defense worldwide problemhttp ajhb.

exact_dup

144012909

10.1002/pssc.200461716

The relaxation of the initial magnetic permeability of La doped yttrium iron garnet (YIG) samples with nominal composition Y3-xLaxFe5O12 (0< x <0.6) is analysed in this work. The results show a very different behaviour depending on the sintering atmosphere used for the fabrication of the samples. Concretely, for the samples sintered in air, it just have been detected the usual relaxation peak found in YIG at 130 K. However, a new relaxation peak appears around room temperature for the samples sintered in CO2 atmosphere when the La content is at least of 0.3. These results have been interpreted in terms of the formation of a secondary perovskite phase when the La solubility limit is reached. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)http://dx.doi.org/10.1002/pssc.20046171

Study of the magnetic disaccommodation in La doped YIG

study of the magnetic disaccommodation in la doped yig

relaxation permeability doped yttrium iron garnet nominal xlaxfe analysed work. sintering atmosphere fabrication samples. concretely sintered usual relaxation relaxation room sintered atmosphere interpreted perovskite solubility reached. wiley verlag gmbh kgaa weinheim pssc.

exact_dup

144012982

10.1002/1521-396X(200102)183:2

The solubility of tin is significantly extended by mechanical alloying in near equiatomic Fe-Cr alloys. The influences of Sn concentration and of grain size on the kinetics of formation of the sigma-phase have been studied using different techniques. The sigma-phase formation is much faster for as-milled alloys than it is for conventional alloys. The sigma-phase formation rate decreases with the increase of Sn concentration in alloys with nanometer-sized grains as it does in coarse-grained alloys. The mechanisms which are responsible for the slowing-down of the alpha-sigma transformation are different in both kinds of alloys.http://dx.doi.org/10.1002/1521-396X(200102)183:2<235::AID-PSSA235>3.0.CO;2-

Study of Alpha-Sigma Phase Transformation in Mechanically Alloyed Fe-Cr-Sn Alloys

study of alpha-sigma phase transformation in mechanically alloyed fe-cr-sn alloys

solubility alloying equiatomic alloys. influences grain kinetics sigma techniques. sigma faster milled alloys alloys. sigma alloys nanometer sized grains coarse grained alloys. slowing alpha sigma kinds alloys. pssa

exact_dup

144013156

10.1002/8485jbt.10081

Several studies have been carried out to evaluate the alterations in mitochondrial functions of diabetic rats. However, some of the results reported are controversial, since experimental conditions, such as aging, and/or strain of animals used were different. The purpose of this study was to evaluate the metabolic changes in liver mitochondria, both in the presence of severe hyperglycaemia (STZ-treated rats) and mild hyperglycaemia (Goto-Kakizaki (GK) rats). Moreover, metabolic alterations were evaluated both at initial and at advanced states of the disease.We observed that both models of type 1 and type 2 diabetes presented alterations on respiratory chain activity. Because of continual severe hyperglycaemia, 9 weeks after the induction of diabetes, the respiratory function declined in STZ-treated rats, as observed by membrane potential and respiratory ratios (RCR, P/O, and FCCP-stimulated respiration) assessment. In contrast, GK rats of 6 months age presented increased respiratory ratios.To localize which respiratory complexes are affected by diabetes, enzymatic respiratory chain activities were evaluated. We observed that succinate dehydrogenase and cytochrome c oxidase activities were significantly augmented both in STZ-treated rats and GK rats of 6 months age. Moreover, H+-ATPase activity was also significantly increased in STZ-treated rats with 3 weeks of diabetes and in GK rats of 6 months age as compared to controls. Therefore, these results clearly suggest that both animal models of diabetes present some metabolic adjustments in order to circumvent the deleterious effects promoted by the high glucose levels typical of the disease. © 2003 Wiley Periodicals, Inc. J Biochem Mol Toxicol 17:214-222, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/jbt.10081http://dx.doi.org/10.1002/8485jbt.1008

Diabetes and mitochondrial bioenergetics: Alterations with age

diabetes and mitochondrial bioenergetics: alterations with age

alterations mitochondrial diabetic rats. controversial aging different. metabolic mitochondria hyperglycaemia rats mild hyperglycaemia goto kakizaki rats metabolic alterations advanced disease.we alterations respiratory activity. continual hyperglycaemia respiratory declined rats respiratory fccp stimulated respiration assessment. rats respiratory ratios.to localize respiratory complexes enzymatic respiratory evaluated. succinate dehydrogenase cytochrome oxidase augmented rats rats age. atpase rats rats controls. metabolic adjustments circumvent deleterious promoted glucose disease. biochem toxicol wiley interscience jbt. jbt.

exact_dup

144013690

10.1007/s10311-006-0072-z

Abstract The photodegradation of the herbicides atrazine and ametryn with visible light in aerated neutral aqueous solutions and 5, 10, 15, 20-tetrakis (2,6-dichloro-3-sulfophenyl) porphyrin or 5, 10, 15, 20-tetrakis (4-sulfophenyl) porphyrin as sensitizers are reported for the first time. Our findings show that the degradation percentage reached 30% for atrazine and 63% for ametryn. The final photoproducts were characterized as dealkylated s-triazines. Photolysis of the pesticides in the presence of a singlet oxygen quencher showed only a minor contribution of this type of mechanism, while a bimolecular quenching reaction between the triplet state of the sensitizer and the pesticides is excluded by flash photolysis studies. It is proposed that the mechanism may involve the formation of a superoxide radical anion from the triplet state of the sensitizer and molecular oxygen, followed by a radical decomposition pathway.http://dx.doi.org/10.1007/s10311-006-0072-

Photodegradation of atrazine and ametryn with visible light using water soluble porphyrins as sensitizers

photodegradation of atrazine and ametryn with visible light using water soluble porphyrins as sensitizers

photodegradation herbicides atrazine ametryn visible aerated neutral aqueous tetrakis dichloro sulfophenyl porphyrin tetrakis sulfophenyl porphyrin sensitizers time. degradation reached atrazine ametryn. photoproducts dealkylated triazines. photolysis pesticides singlet quencher minor bimolecular quenching triplet sensitizer pesticides excluded flash photolysis studies. involve superoxide radical anion triplet sensitizer radical decomposition pathway.

exact_dup

146092042

10.1103/PhysRevD.91.022005

International audienceWe estimate the loss angles of the materials currently used in the highly reflective test-mass coatings of interferometric detectors of gravitational waves, namely Silica, Tantala, and Ti-doped Tantala, from direct measurement of coating thermal noise in an optical interferometer testbench, the Caltech TNI. We also present a simple predictive theory for the material properties of amorphous glassy oxide mixtures, which gives results in good agreement with our measurements on Ti-doped Tantala. Alternative measurement methods and results are reviewed, and some critical issues are discussed

Material loss angles from direct measurements of broadband thermal noise

material loss angles from direct measurements of broadband thermal noise

audiencewe angles reflective coatings interferometric detectors gravitational silica tantala doped tantala coating interferometer testbench caltech tni. predictive amorphous glassy oxide mixtures doped tantala. reviewed

exact_dup

147597187

10.1007/978-3-540-92235-3_3

In this paper we present a new approach for automatic summarization of rushes video. Our approach is composed of three main steps. First, based on a temporal segmentation, we filter sub-shots with low information content not likely to be useful in a summary. Second, a method using maximal matching in a bipartite graph is adapted to measure similarity between the remaining shots and to minimize inter-shot redundancy by removing repetitive retake shots common in rushes content. Finally, the presence of faces and the motion intensity are characterised in each sub-shot. A measure of how representative the sub-shot is in the context of the overall video is then proposed. Video summaries composed of keyframe slideshows are then generated. In order to evaluate the effectiveness of this approach we re-run the evaluation carried out by the TREC, using the same dataset and evaluation metrics used in the TRECVID video summarization task in 2007 but with our own assessors. Results show that our approach leads to a significant improvement in terms of the fraction of the TRECVID summary ground truth included and is competitive with other approaches in TRECVID 2007

Automatic summarization of rushes video using bipartite graphs

automatic summarization of rushes video using bipartite graphs

automatic summarization rushes video. composed steps. segmentation filter shots summary. maximal matching bipartite adapted similarity shots minimize shot redundancy removing repetitive retake shots rushes content. faces characterised shot. shot video proposed. video summaries composed keyframe slideshows generated. effectiveness trec dataset metrics trecvid video summarization assessors. trecvid truth competitive trecvid

exact_dup

147600022

10.1016/j.ipm.2009.10.010

Synchronous collaborative information retrieval (SCIR) is concerned with supporting two or more users who search together at the same time in order to satisfy a shared information need. SCIR systems represent a paradigmatic shift in the way we view information retrieval, moving from an individual to a group process and as such the development of novel IR techniques is needed to support this. In this article we present what we believe are two key concepts for the development of effective SCIR namely division of labour (DoL) and sharing of knowledge (SoK). Together these concepts enable coordinated SCIR such that redundancy across group members is reduced whilst enabling each group member to benefit from the discoveries of their collaborators. In this article we outline techniques from state-of-the-art SCIR systems which support these two concepts, primarily through the provision of awareness widgets. We then outline some of our own work into system-mediated techniques for division of labour and sharing of knowledge in SCIR. Finally we conclude with a discussion on some possible future trends for these two coordination techniques

Division of labour and sharing of knowledge for synchronous collaborative information retrieval

division of labour and sharing of knowledge for synchronous collaborative information retrieval

synchronous collaborative retrieval scir concerned supporting satisfy shared need. scir paradigmatic retrieval moving this. believe concepts scir division labour sharing concepts enable coordinated scir redundancy whilst enabling member benefit discoveries collaborators. outline scir concepts primarily provision awareness widgets. outline division labour sharing scir. coordination

exact_dup

147600427

10.1007/11575801_16

Model-driven Architecture (MDA) is a software architecture\ud framework proposed by the Object Management Group OMG. MDA\ud emphasises the importance of modelling in the architectural design of service-based software systems. Ontologies can enhance the modelling aspects here. We present ontology-based transformation and reasoning techniques for a layered, MDA-based modelling approach. Different ontological\ud frameworks shall support domain modelling, architectural modelling and interoperability. Ontologies are beneficial due to their potential to formally define and automate transformations and to allow reasoning about models at all stages. Ontologies are suitable in particular for the Web Services platform due to their ubiquity within the Semantic Web and their application to support semantic Web services

Ontology transformation and reasoning for model-driven architecture

ontology transformation and reasoning for model-driven architecture

architecture architecture omg. emphasises architectural systems. ontologies enhance here. ontology reasoning layered approach. ontological frameworks architectural interoperability. ontologies beneficial formally automate transformations reasoning stages. ontologies platform ubiquity semantic semantic

exact_dup

147607864

10.1007/978-1-4614-7588-0_49

No sooner than later, the world will be living hell as a result of the transportation effects on our climate now escalating. The pressure is now growing towards their resultant effects to be totally eradicated in order to save our planet otherwise, the stabilisation of these effects; global warming, greenhouse gas (GHG) emission and degradation will need to be sought after. The world all over is at it now in an effort to restore our climate, to save it from the effects of these catastrophes/disasters.\ud \ud On the proposition of the Kyoto Protocol in1997, the main focus was to decrease greenhouse emissions of mainly six gases – Carbon dioxide, methane, nitrous oxide, sulphur hexafluoride, Hydro fluorocarbons (HFCs) and Per fluorinated Compounds (PFCs). And transport alone, accounts for over 26% of global CO2 and has been regarded as one of the few industrial sectors wherein emissions are still on the increase, on this basis, researchers and policy makers are all at it to tackle the menace of climate changes through provision of sustainable transport. \ud This paper focuses on the new and developed technologies like the renewable energy source [RES], which will be an alternative to transport fuels to avoid the dependence on petroleum which after effects are damaging to the world climate, and may probably not be there forever to continue serving the world ever increasing population. While the long term solutions are being sought, these alternatives will make do for now

A change in the transportation needs today, a better future for tomorrow – climate change review

a change in the transportation needs today, a better future for tomorrow – climate change review

sooner living hell transportation escalating. growing resultant totally eradicated save planet stabilisation warming greenhouse degradation sought after. effort restore save catastrophes disasters. kyoto greenhouse gases dioxide methane nitrous oxide sulphur hexafluoride hydro fluorocarbons hfcs fluorinated pfcs accounts regarded industrial sectors wherein researchers makers tackle menace provision sustainable transport. focuses technologies renewable fuels avoid petroleum damaging probably forever continue serving ever population. sought alternatives

exact_dup

147609636

10.1007/978-3-319-48890-5_31

Instead of occurring independently, semantic concepts pairs tend to co-occur within a single image and it is intuitive that concept detection accuracy for visual concepts can be enhanced if concept correlation can be leveraged in some way. In everyday concept detection for visual lifelogging using wearable cameras to automatically record every- day activities, the captured images usually have a diversity of concepts which challenges the performance of concept detection. In this paper a semantically smoothed refinement algorithm is proposed using concept correlations which exploit topic-related concept relationships, modeled externally in a user experiment rather than extracted from training data. Results for initial concept detection are factorized based on semantic smoothness and adjusted in compliance with the extracted concept correlations. Refinement performance is demonstrated in experiments to show the effectiveness of our algorithm and the extracted correlations

Semantically smoothed refinement for everyday concept indexing

semantically smoothed refinement for everyday concept indexing

occurring independently semantic concepts tend intuitive concepts leveraged way. everyday lifelogging wearable cameras automatically record captured diversity concepts challenges detection. semantically smoothed refinement exploit topic modeled externally data. factorized semantic smoothness adjusted compliance correlations. refinement effectiveness

exact_dup

148653497

10.1063/1.2840461

This paper applies geometric methods developed to understand chaos and transport in Hamiltonian systems to the study of power distribution in nonlinear waveguide arrays. The specific case of two linearly coupled X(2) waveguides is modeled and analyzed in terms of transport and geometry in the phase space. This gives us a transport problem in the phase space resulting from the coupling of the two Hamiltonian systems for each waveguide. In particular, the effect of the presence of partial and complete barriers in the phase space on the transfer of intensity between the waveguides is studied, given a specific input and range of material properties. We show how these barriers break down as the coupling between the waveguides is increased and what the role of resonances in the phase space has in this. We also show how an increase in the coupling can lead to chaos and global transport and what effect this has on the intensity

Geometry and transport in a model of two coupled quadratic nonlinear waveguides

geometry and transport in a model of two coupled quadratic nonlinear waveguides

applies geometric chaos waveguide arrays. linearly waveguides modeled space. waveguide. barriers waveguides properties. barriers break waveguides resonances this. chaos

exact_dup

148668131

10.1088/0031-8949/87/06/065304

The N+2 ion yield of the N2 molecule has been measured at the N 1s → Rydberg excitations. It displays Fano-type line shapes due to interference between direct outer-valence photoionization and participator decay of the core-excited Rydberg states. The N+2 ion yield is compared with the total intensity of the outer-valence photoelectron lines obtained recently with electron spectroscopy (Kivimäki et al 2012 Phys. Rev. A 86 012516). The increasing difference between the two curves at the higher core-to-Rydberg excitations is most likely due to soft x-ray emission processes that are followed by autoionization. The results also suggest that resonant Auger decay from the core–valence doubly excited states contributes to the N+2 ion yield at the photon energies that are located on both sides of the N 1s ionization limit

On the production of N-2(+) ions at the N 1s edge of the nitrogen molecule

on the production of n-2(+) ions at the n 1s edge of the nitrogen molecule

molecule rydberg excitations. displays fano shapes interference outer valence photoionization participator excited rydberg states. outer valence photoelectron spectroscopy kivimäki phys. rev. rydberg excitations autoionization. resonant auger core–valence doubly excited contributes sides ionization

exact_dup

148668757

10.1007/978-3-319-01928-4

We present a biomolecular probabilistic model driven by the action of a DNA toolbox made of a set of DNA templates and enzymes that is able to perform Bayesian inference. The model will take single-stranded DNA as input data, representing the presence or absence of a specific molecular signal (the evidence). The program logic uses different DNA templates and their relative concentration ratios to encode the prior probability of a disease and the conditional probability of a signal given the disease. When the input and program molecules interact, an enzyme-driven cascade of reactions (DNA polymerase extension, nicking and degradation) is triggered, producing a different pair of single-stranded DNA species. Once the system reaches equilibrium, the ratio between the output species will represent the application of Bayes? law: the conditional probability of the disease given the signal. In other words, a qualitative diagnosis plus a quantitative degree of belief in that diagno- sis. Thanks to the inherent amplification capability of this DNA toolbox, the resulting system will be able to to scale up (with longer cascades and thus more input signals) a Bayesian biosensor that we designed previously

Probabilistic reasoning with an enzyme-driven DNA device

probabilistic reasoning with an enzyme-driven dna device

biomolecular probabilistic toolbox templates enzymes bayesian inference. stranded representing logic templates encode conditional disease. interact enzyme cascade polymerase nicking degradation triggered producing stranded species. reaches bayes conditional signal. qualitative belief diagno sis. thanks inherent amplification capability toolbox cascades bayesian biosensor

exact_dup

148670545

10.1016/j.laa.2012.10.051

In this paper new results on personalized PageRank are shown. We consider directed graphs that may contain dangling nodes. The main result presented gives an analytical characterization of all the possible values of the personalized PageRank for any node.We use this result to give a theoretical justification of a recent model that uses the personalized PageRank to classify users of Social Networks Sites. We introduce new concepts concerning competitivity and leadership in complex networks. We also present some theoretical techniques to locate leaders and competitors which are valid for any personalization vector and by using only information related to the adjacency matrix of the graph and the distribution of its dangling nodes

On the localization of the personalized PageRank of complex networks

on the localization of the personalized pagerank of complex networks

personalized pagerank shown. directed dangling nodes. personalized pagerank node.we justification personalized pagerank classify sites. concepts concerning competitivity leadership networks. locate leaders competitors valid personalization adjacency dangling

exact_dup

148680650

10.1088/1054-660X/26/5/055602

We present temporal information obtained by mass spectrometry techniques about the evolution of plasmas generated by laser filamentation in air. The experimental setup used in this work allowed us to study not only the dynamics of the filament core but also of the energy reservoir that surrounds it. Furthermore, valuable insights about the chemistry of such systems like the photofragmentation and/or formation of molecules were obtained. The interpretation of the experimental results are supported by PIC simulations

Determination of the species generated in atmospheric-pressure laser-induced plasmas by mass spectometry techniques

determination of the species generated in atmospheric-pressure laser-induced plasmas by mass spectometry techniques

spectrometry plasmas filamentation air. setup filament reservoir surrounds valuable insights photofragmentation obtained.

exact_dup

148686720

10.1049/iet-ifs.2015.0256

Honeypots are designed to investigate malicious behavior. Each type of homogeneous honeypot system has its own\ud characteristics in respect of specific security functionality, and also suffers functional drawbacks that restrict its application scenario. In practical scenarios, therefore, security researchers always need to apply heterogeneous honeypots to cope with different attacks. However, there is a lack of general tools or platforms that can support versatile honeynet deployment in order to investigate the malicious behavior. In this study, the authors propose a versatile virtual honeynet management tool to address this problem. It is a flexible tool that offers security researchers the versatility to deploy various types of honeypots. It can also generate and manage the virtual honeynet through a dynamic configuration approach adapting to the mutable network environment. The experimental results demonstrate that this tool is effective to perform automated honeynet deployment toward a variety of heterogeneous honeypots

Versatile virtual honeynet management framework

versatile virtual honeynet management framework

honeypots malicious behavior. homogeneous honeypot security functionality suffers drawbacks restrict scenario. practical scenarios security researchers heterogeneous honeypots cope attacks. platforms versatile honeynet deployment malicious behavior. propose versatile virtual honeynet problem. flexible offers security researchers versatility deploy honeypots. manage virtual honeynet adapting mutable environment. automated honeynet deployment toward heterogeneous honeypots

exact_dup

157867421

10.1007/s11229-015-0954-3

Several authors have claimed that prediction is essentially impossible in the general theory of relativity, the case being particularly strong, it is said, when one fully considers the epistemic predicament of the observer. Each of these claims rests on the support of an underdetermination argument and a particular interpretation of the concept of prediction. I argue that these underdetermination arguments fail and depend on an implausible explication of prediction in the theory. The technical results adduced in these arguments can be related to certain epistemic issues, but can only be misleadingly or mistakenly characterized as related to prediction

Prediction in General Relativity

prediction in general relativity

claimed essentially impossible relativity said considers epistemic predicament observer. claims rests underdetermination argument prediction. argue underdetermination arguments fail implausible explication theory. adduced arguments epistemic misleadingly mistakenly

exact_dup

16412619

10.1093/jxb/ers096

The softening and degradation of the cell wall (CW), often mannan enriched, is involved in several processes during development of higher plants, such as meristematic growth, fruit ripening, programmed cell death, and endosperm rupture upon germination. Mannans are also the predominant hemicellulosic CW polymers in many genera of green algae. The endosperm CWs of dry seeds often contain mannan polymers, sometimes in the form of galactomannans (Gal-mannans). The endo-beta-mannanases (MANs) that catalyse the random hydrolysis of the beta-linkage in the mannan backbone are one of the main hydrolytic enzymes involved in the loosening and remodelling of CWs. In germinating seeds, the softening of the endosperm seed CWs facilitates the emergence of the elongating radicle. Hydrolysis and mobilization of endosperm Gal-mannans by MANs also provides a source of nutrients for early seedling growth, since Gal-mannan, besides its structural role, serves as a storage polysaccharide. Therefore, the role of mannans and of their hydrolytic enzymes is decisive in the life cycle of seeds. This review updates and discusses the significance of mannans and MANs in seeds and explores the increasing biotechnological potential of MAN enzymes

Softening-up mannan-rich cell walls

softening-up mannan-rich cell walls

softening degradation mannan enriched meristematic fruit ripening programmed endosperm rupture germination. mannans predominant hemicellulosic polymers genera algae. endosperm seeds mannan polymers sometimes galactomannans mannans endo beta mannanases mans catalyse hydrolysis beta linkage mannan backbone hydrolytic enzymes loosening remodelling cws. germinating seeds softening endosperm seed facilitates emergence elongating radicle. hydrolysis mobilization endosperm mannans mans nutrients seedling mannan besides serves storage polysaccharide. mannans hydrolytic enzymes decisive seeds. updates discusses mannans mans seeds explores biotechnological enzymes

exact_dup

17209167

10.1093/mnras/stt356

We have determined matrix elements for all experimental configurations of Ca III, including\ud the 3s3p63d configuration. These values have been obtained using intermediate coupling (IC).\ud For these IC calculations, we have used the standard method of least-squares fitting from\ud the experimental energy levels, using the computer code developed by Robert Cowan. In this\ud paper, using these matrix elements, we report the calculated values of the Ca III Stark widths\ud and shifts for 148 spectral lines, of 56 Ca III spectral line transition probabilities and of eight\ud radiative lifetimes of Ca III levels. The Stark widths and shifts, calculated using the Griem\ud semi-empirical approach, correspond to the spectral lines of Ca III and are presented for an\ud electron density of 1017 cm?3 and temperatures T = 1.0?10.0 (×104 K). The theoretical trends\ud of the Stark broadening parameter versus the temperature are presented for transitions that\ud are of astrophysical interest. There is good agreement between our calculations, for transition\ud probabilities and radiative lifetimes, and the experimental values presented in the literature.\ud We have not been able to find any values for the Stark parameters in the references

Ab initio calculations of Ca III Stark broadening parameters,transition probabilities and radiative lifetimes

ab initio calculations of ca iii stark broadening parameters,transition probabilities and radiative lifetimes

configurations configuration. squares fitting robert cowan. stark widths shifts probabilities eight radiative lifetimes levels. stark widths shifts griem stark broadening astrophysical interest. probabilities radiative lifetimes literature. stark

exact_dup

18275420

10.1002/app.36567

The definitive version is available at www3.interscience.wiley.com : http://onlinelibrary.wiley.com/doi/10.1002/app.36567/abstractMultilayered film polycarbonate/polystyrene (PC/PS) comprising 257 layers with total thickness 125 m was made by coextrusion process. The nominal thickness of PC layers was 680 nm, and the nominal thickness of PS layers was 290 nm. Additionally the control samples of PC and PS with the thickness of 125 m were coextruded in the same way. There was reasonably good correlation between the PC and PS layers real thickness as measured by AFM and the estimated thickness determined from the processing parameters. Significant shift of glass transition temperature is observed in multilayer film: for PS component towards higher temperature while PC still being glassy and for PC towards lower temperature while PS being in rubbery phase. In order to investigate the amplitude and geometry of fast segmental motions, the LG-CP NMR technique under fast magic-angle spinning was used. 2D 13C – 1H LG-CP spectra of PC, PS and PC/PS 70/30 were recorded at various temperatures. Cross sections of aromatic carbons spectra show us the influence of PC on PS and vice versa. It gives us also the information about PS and PC segmental motion as a function of temperature: above the glass transition temperature of PS, the PC component of a multilayer film, although still being in glassy state, becomes more flexible

Structure and molecular dynamics of multilayered polycarbonate/polystyrene films.

structure and molecular dynamics of multilayered polycarbonate/polystyrene films.

definitive app. abstractmultilayered film polycarbonate polystyrene comprising coextrusion process. nominal nominal additionally coextruded way. reasonably parameters. glass multilayer film glassy rubbery phase. segmental motions magic spinning used. temperatures. aromatic carbons vice versa. segmental glass multilayer film glassy flexible

exact_dup

18320573

10.1007/s11761-013-0145-3

Services are oered in an execution context that is determined by how a provider provisions the service and how the user consumes it. The need for more exibility requires the provisioning and consumption aspects to be addressed at runtime. We propose an ontology-based context model providing a framework for service provisioning and consumption aspects and techniques for managing context constraints for Web service processes where dynamic context concerns can be monitored and validated at service process run-time.\ud We discuss the contextualization of dynamically relevant\ud aspects of Web service processes as our main goal, i.e. capture aspects in an extended context model. The technical contributions of this paper are a context model ontology for dynamic service contexts and an operator calculus for integrated and coherent context manipulation, composition and reasoning. The context model ontology formalizes dynamic aspects of Web services and facilitates reasoning. We present the context ontology in terms of four core dimensions - functional, QoS, domain and platform - which are internally interconnected

An extended ontology-based context model and manipulation calculus for dynamic web service processes

an extended ontology-based context model and manipulation calculus for dynamic web service processes

oered execution provider provisions consumes exibility provisioning addressed runtime. propose ontology provisioning managing concerns monitored validated time. contextualization dynamically goal i.e. capture model. ontology contexts calculus coherent manipulation reasoning. ontology formalizes facilitates reasoning. ontology platform internally interconnected

exact_dup

18424097

10.1016/j.tra.2013.01.007

Several international studies have analyzed the acceptability of road pricing schemes by means of an attitude survey in combination with the results of a stated choice experiment using both a descriptive analysis and a discrete-choice model with binary choice (?accept? or ?not accept? the toll). However, the use of hybrid discrete choice models constitutes an innovative alternative for integrating subjective attitudes and perceptions deriving from the survey of attitudes with the more objective variables from the stated choice experiment. This paper analyzes the results of applying these models to measure the acceptability of interurban road pricing among different groups of stakeholders (road freight and passenger operators, highway concessionaires, and associations of private car users) with qualitatively significant opinions on road pricing measures. Our results show that hybrid models are better suited to explaining the acceptability of a road pricing scheme by different groups of stakeholders than a separate analysis of the survey of attitudes and a discrete-choice model applied on a stated choice experiment. A particular finding was that the strong psycho-social latent variable of the perception of fairness explains the rejection or acceptance of a toll scheme by road stakeholders

Improving the analysis of road pricing acceptability surveys by using hybrid models

improving the analysis of road pricing acceptability surveys by using hybrid models

acceptability road pricing schemes attitude stated descriptive accept accept toll hybrid constitutes innovative integrating subjective attitudes perceptions deriving attitudes stated experiment. analyzes acceptability interurban road pricing stakeholders road freight passenger highway concessionaires associations private qualitatively opinions road pricing measures. hybrid suited explaining acceptability road pricing stakeholders attitudes stated experiment. psycho latent perception fairness explains rejection acceptance toll road stakeholders

exact_dup

186332718

10.1016/j.marpol.2016.04.018

Up until the recent oil and commodity price crash in 2015, there has been exponential growth in global shipping and trade, and this increase means that prompt action is required to reduce vessel-sourced greenhouse gas (GHG) emissions. Future projections suggest that maritime CO2 emissions will increase substantially by between 50% and 250%. However, there is currently no international instrument holding global shipping corporations accountable for their vessels' performance in emissions reduction. This article critically assesses the current accountability practices and regulations in place for these corporations. It suggests that stakeholders in this industry need to further explore the market based mechanisms (MBMs) that can encourage and even demand that these corporations systematically disclose their vessels' emissions reduction performance in an accurate and timely manner. Developing such mechanisms is vital to assist in the reduction of GHG emissions since a comprehensive international instrument is unlikely to be implemented soon

Regulating global shipping corporations' accountability for reducing greenhouse gas emissions in the seas

regulating global shipping corporations' accountability for reducing greenhouse gas emissions in the seas

commodity crash exponential shipping trade prompt vessel sourced greenhouse emissions. projections maritime substantially instrument holding shipping corporations accountable vessels reduction. critically assesses accountability practices regulations corporations. stakeholders explore mbms encourage corporations systematically disclose vessels timely manner. vital assist comprehensive instrument unlikely implemented soon

exact_dup

188012181

10.1016/j.ejor.2018.12.045

We analyze a transboundary pollution differential game where, in addition to the standard temporal dimension, a spatial dimension is introduced to capture the geographical relationships among regions. Each region behaves strategically and maximizes its welfare net of environmental damage caused by the pollutant stock. The emission-output ratio is reduced by investment in region specific clean technology which evolves over time. The spatio-temporal dynamics of the pollutant stock is described by a parabolic partial differential equation. Using aggregate variables we study the feedback Nash equilibrium of a discrete- space model which could be seen as a space discretization of the continuous-space model. The discrete- space model presents the three main features of the original formulation: the model is truly dynamic; the agents behave strategically; and the model incorporates spatial aspects. For special functional forms previously used in the literature we analytically characterize the feedback Nash equilibrium and evaluate the impact of the introduction of the spatial dimension in the economic-environmental model. We show that our spatial model is a generalization of the model that disregards the spatial aspects. We analytically show that as the parameter describing how pollution diffuses among regions tends to infinity the equilibrium policies converge to those in the non-spatial setting. In the non-cooperative framework the spatially non-myopic behavior prescribes lower equilibrium emission rates, and consequently a lower global pollution stock. This is compatible with greater long-run welfares. In the cooperative framework, although the strategic interaction among the players does not exist, the only decision-maker still makes spatially strategic decisions.MINECO/AEI Projects MTM2016-78995-P, ECO2014-52343-P, ECO2017-82227-PJunta de Castilla y León, Projects VA024P17 and VA105G1

Spatial vs. non-spatial transboundary pollution control in a class of cooperative and non-cooperative dynamic games

spatial vs. non-spatial transboundary pollution control in a class of cooperative and non-cooperative dynamic games

analyze transboundary pollution game capture geographical regions. behaves strategically maximizes welfare pollutant stock. investment clean evolves time. spatio pollutant stock parabolic equation. aggregate nash discretization model. presents formulation truly behave strategically incorporates aspects. analytically characterize nash model. generalization disregards aspects. analytically describing pollution diffuses tends infinity policies converge setting. cooperative spatially myopic prescribes pollution stock. compatible welfares. cooperative strategic players maker spatially strategic decisions.mineco projects pjunta castilla león projects

exact_dup

19125453

10.1002/hyp.1466

This paper, the second in the series, uses the entropy theory to describe the spatial variability of groundwater quality data sets. The application of the entropy theory is illustrated using the chloride observations obtained from a network of groundwater quality monitoring wells in the Gaza Strip, Palestine. The application involves calculating information measures, such as transinformation, the information transfer index and the correlation coefficient. These measures are calculated using a discrete approach, in which contingency tables are used. An exponential decay fitting approach was applied to the discrete models. The analysis shows that transinformation, as a function of distance, can be represented by the exponential decay curve. It also indicates that, for the data used in this study, the transinformation model is superior to the correlation model for characterizing the spatial variability. Copyright © 2004 John Wiley & Sons, Ltd.http://dx.doi.org/10.1002/hyp.146

Characterizing the spatial variability of groundwater quality using the entropy theory: II. Case study from Gaza Strip

characterizing the spatial variability of groundwater quality using the entropy theory: ii. case study from gaza strip

groundwater sets. illustrated chloride groundwater wells gaza strip palestine. involves calculating transinformation coefficient. contingency tables used. exponential fitting models. transinformation exponential curve. transinformation superior characterizing variability. hyp.

exact_dup

19125460

10.1002/pssc.200461716

The relaxation of the initial magnetic permeability of La doped yttrium iron garnet (YIG) samples with nominal composition Y3-xLaxFe5O12 (0< x <0.6) is analysed in this work. The results show a very different behaviour depending on the sintering atmosphere used for the fabrication of the samples. Concretely, for the samples sintered in air, it just have been detected the usual relaxation peak found in YIG at 130 K. However, a new relaxation peak appears around room temperature for the samples sintered in CO2 atmosphere when the La content is at least of 0.3. These results have been interpreted in terms of the formation of a secondary perovskite phase when the La solubility limit is reached. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)http://dx.doi.org/10.1002/pssc.20046171

Study of the magnetic disaccommodation in La doped YIG

study of the magnetic disaccommodation in la doped yig

relaxation permeability doped yttrium iron garnet nominal xlaxfe analysed work. sintering atmosphere fabrication samples. concretely sintered usual relaxation relaxation room sintered atmosphere interpreted perovskite solubility reached. wiley verlag gmbh kgaa weinheim pssc.

exact_dup

19125550

10.1002/chem.200701986

The concept of ldquochemical reactivityrdquo assumes that atoms and molecules contain the necessary information to describe their evolution over time as they transform from reactants to products. This concept was useful in the past to rationalize reactivity trends and predict the behavior of new systems. Free-energy relationships have played a central role in this field. However, electronic effects often counter the energetic effects and give rise to ldquoanomaliesrdquo or separate correlations. We discuss a quantification of the concept of ldquochemical reactivityrdquo, emphasizing the role of molecular and electronic factors in Chemistry.http://dx.doi.org/10.1002/chem.20070198

Understanding Chemical Reactivity: The Case for Atom, Proton and Methyl Transfers

understanding chemical reactivity: the case for atom, proton and methyl transfers

ldquochemical reactivityrdquo assumes transform reactants products. rationalize reactivity predict systems. played field. counter energetic ldquoanomaliesrdquo correlations. quantification ldquochemical reactivityrdquo emphasizing chemistry. chem.

exact_dup

19125915

10.1007/s00214-006-0092-6

Abstract A single-sheeted double many-body expansion (DMBE) potential energy surface is reported for the 1 2 A'' state of NH2. To approximate its true multi-sheeted nature, a novel switching function that imposes the correct behavior at the H2(X 1S g +)+ N(2 D) and NH(X 3S-) + H(2 S) dissociation limits has been suggested. The new DMBE form is shown to fit with high accuracy an extensive set of new ab initio points (calculated at the multi-reference configuration interaction level using the full valence complete active space as reference and aug-cc-pVQZ and aug-cc-pV5Z basis sets) that have been semiempirically corrected at the valence regions by scaling the n-body dynamical correlation terms such as to account for the finite basis set size and truncated configuration interaction expansion. A detailed study of the N(2 D) ... H2(X 1S g +) van der Waals region has also been carried out. These calculations predict a nearly free rigid-rotor with two shallow van der Waals wells of C 2v and C 8 v symmetries. Such a result contrasts with previous cc-pVTZ calculations which predict a single T-shaped van der Waals structure. Except in the vicinity of the crossing seam, which is replaced by an avoided intersection, the fit shows the correct physical behavior over the entire configurational space. The topographical features of the new DMBE potential energy surface are examined in detail and compared with those of other potential functions available in the literature. Amongst such features, we highlight the barrier for linearization (11,802 cm-1) which is found to overestimate the most recent empirical spectroscopic estimate by only 28 cm-1. Additionally, the T-shaped N(2 D) ... H2 van der Waals minimum is predicted to have a well depth of 90 cm-1, being 11 cm-1 deeper than the C 8 v minimum. The title DMBE form is therefore recommendable for dynamics studies of both non-reactive and reactive N(2 D)+H2 collisions.http://dx.doi.org/10.1007/s00214-006-0092-

Accurate DMBE Potential Energy Surface For the N(2D) + H2(1S g+ ) Reaction Using an Improved Switching Function Formalism

accurate dmbe potential energy surface for the n(2d) + h2(1s g+ ) reaction using an improved switching function formalism

sheeted dmbe approximate sheeted switching imposes dissociation suggested. dmbe extensive initio valence pvqz semiempirically corrected valence truncated expansion. waals out. predict nearly rigid rotor shallow waals wells symmetries. contrasts pvtz predict shaped waals structure. vicinity crossing seam replaced avoided intersection configurational space. topographical dmbe literature. amongst highlight barrier linearization overestimate spectroscopic additionally shaped waals deeper minimum. title dmbe recommendable reactive reactive collisions.

exact_dup

19125943

10.1007/s10040-005-0464-3

Abstract Using entropy theory, a methodology was developed for the evaluation and redesign of groundwater quality monitoring wells in the Gaza Strip in Palestine. Essential to the methodology is the development of a Transinformation Model (TM) which yields the amount of information transfer and the dependency between the wells as a function of distance. The TM parameters, such as the minimum transinformation and the range, were employed for evaluating the network which revealed that most of the distances between wells were less than the range. It also indicated that a high percentage of redundant information existed in the network. Therefore, the network was reduced by superimposing a square pattern over the monitored area and selecting one well per square block in a stratified pattern. The methodology was tested using the chloride data collected from 1972–2000 from 417 groundwater quality monitoring wells in the Gaza Strip. The number of the groundwater quality monitoring wells in the Gaza Strip was reduced by 53%, while there was 26% redundant information based on the minimum existing distance between wells. This methodology is meant to help monitor the groundwater quality (salinity) in the Gaza Strip.http://dx.doi.org/10.1007/s10040-005-0464-

Spatial assessment and redesign of a groundwater quality monitoring network using entropy theory, Gaza Strip, Palestine

spatial assessment and redesign of a groundwater quality monitoring network using entropy theory, gaza strip, palestine

methodology redesign groundwater wells gaza strip palestine. methodology transinformation dependency wells distance. transinformation evaluating distances wells range. redundant existed network. superimposing monitored selecting stratified pattern. methodology chloride groundwater wells gaza strip. groundwater wells gaza strip redundant wells. methodology meant monitor groundwater salinity gaza strip.

exact_dup

19126081

10.1007/s00128-008-9517-3

Abstract Ecotoxicological effects of the herbicide atrazine and the insecticides endosulfan sulphate and chlorpyrifos were evaluated using a test battery comprising aquatic organisms from different trophic levels. According to the categories established in the EU legislation, atrazine can be considered non-harmful for the species tested, while the insecticides can be considered very toxic for the crustaceans. The results of acute toxicity tests showed that the sensitivity of organisms were as follows: Thamnocephalus platyurus &gt; Daphnia magna &gt; Vibrio fischeri. Chlorpyrifos may act as a toxic compound in the aquatic environment of Guadiana River, as it may be detected in water at levels that promote toxic effects.http://dx.doi.org/10.1007/s00128-008-9517-

Acute Toxicity of Atrazine, Endosulfan Sulphate and Chlorpyrifos to Vibrio fischeri , Thamnocephalus platyurus and Daphnia magna, Relative to Their Concentrations in Surface Waters from the Alentejo Region of Portugal

acute toxicity of atrazine, endosulfan sulphate and chlorpyrifos to vibrio fischeri , thamnocephalus platyurus and daphnia magna, relative to their concentrations in surface waters from the alentejo region of portugal

ecotoxicological herbicide atrazine insecticides endosulfan sulphate chlorpyrifos battery comprising aquatic organisms trophic levels. categories legislation atrazine harmful insecticides toxic crustaceans. toxicity organisms thamnocephalus platyurus daphnia magna vibrio fischeri. chlorpyrifos toxic compound aquatic guadiana river promote toxic effects.

exact_dup

19126149

10.1023/A:1008636615842

Using on the one hand closure operators in the sense of Dikranjan and Giuli and on the other hand left- and right-constant subcategories in the sense of Herrlich, Preuß, Arhangel'skii and Wiegandt, we apply two categorical concepts of connectedness and separation/disconnectedness to comma categories in order to introduce these notions for morphisms of a category and to study their factorization behaviour. While at the object level in categories with enough points the first approach exceeds the second considerably, as far as generality is concerned, the two approaches become quite distinct at the morphism level. In fact, left- and right-constant subcategories lead to a straight generalization of Collins' concordant and dissonant maps in the category $$\mathcal{T}op$$ of topological spaces. By contrast, closure operators are neither able to describe these types of maps in $$\mathcal{T}op$$, nor the more classical monotone and light maps of Eilenberg and Whyburn, although they give all sorts of interesting and closely related types of maps. As a by-product we obtain a negative solution to the ten-year-old problem whether the Giuli–Hušek Diagonal Theorem holds true in every decent category, and exhibit a counter-example in the category of topological spaces over the 1-sphere.http://dx.doi.org/10.1023/A:100863661584

Separated and Connected Maps

separated and connected maps

closure dikranjan giuli subcategories herrlich preuß arhangel skii wiegandt categorical concepts connectedness disconnectedness comma categories notions morphisms factorization behaviour. categories exceeds considerably generality concerned morphism level. subcategories straight generalization collins concordant dissonant mathcal topological spaces. closure neither mathcal monotone eilenberg whyburn sorts closely maps. giuli–hušek diagonal decent exhibit counter topological sphere.

exact_dup

19126672

10.1002/ppap.200731301

Reactive sputtering is one of the most commonly employed processes for the deposition of thin films. However, the range of applications is limited by inherent instabilities, which necessitates the use of a complex feedback control of reactive gas (RG) partial pressure. Recently pulsing of the RG has been suggested as a possible alternative. In this report, the concept of periodically switching the RG flow between two different values is applied to the deposition of tungsten oxide. The trends in the measured time dependent RG pressure and discharge voltage are reproduced by a dynamical model developed for this process. Furthermore, the model predicts the compositional depth profile of the deposited film reasonably well, and in particular helps to understand the formation of the interfaces in the resulting multi-layer film.http://dx.doi.org/10.1002/ppap.20073130

Modelling of Magnetron Sputtering of Tungsten Oxide with Reactive Gas Pulsing

modelling of magnetron sputtering of tungsten oxide with reactive gas pulsing

reactive sputtering commonly deposition films. inherent instabilities necessitates reactive pressure. pulsing alternative. periodically switching deposition tungsten oxide. discharge reproduced process. predicts compositional deposited film reasonably helps interfaces film. ppap.

exact_dup

196153247

10.1016/j.vibspec.2018.12.003

The outcrop of “Las Arenas” volcano in Tenerife, Canary Islands (Spain) has been presented as Terrestrial volcanic analog for ancient Mars, showing a great variety of alteration processes and interesting mineralogy. The current analysis has been done by means of measurement techniques used or proposed on Martian studies. The new analysis of the zeolite has been carried out using Raman spectroscopy, Mössbauer spectroscopy, X-ray diffraction (XRD), Infrared spectroscopy, Laser induced breakdown spectroscopy and Scanning electron microscopy (SEM-EDX). The zeolite has been carefully analyzed using vibrational spectroscopy and it has been identified as Ca-phillipsite. The other techniques support and confirm the results. The measurements and results using the Raman Laser Spectrometer (RLS) simulator system show the capabilities RLS system in the ESA Exo- Mars mission. The chemometrical methods for the vibrational mineral detection show the advantages of Raman spectroscopy to understand the possible geological context. Furthermore, the proposed diagenesis and formation of the zeolites in southern part of Tenerife island have been confirmed by the twin space prototypes used. A new hypothesis about the origin for the special case of “Las Arenas” volcano Ca-phillipsite has been proposed. Finally, a multi-complementary comparison among the different techniques used on the current studie has been done and, also an analogy with the next space mission has been established. These analyses emphasize the strength of the different techniques and the working synergy of the different techniques together for planetary space missions

Combined vibrational, structural, elemental and Mössbauer spectroscopic analysis of natural phillipsite (zeolite) from historical eruptions in Tenerife, Canary Islands: Implication for Mars

combined vibrational, structural, elemental and mössbauer spectroscopic analysis of natural phillipsite (zeolite) from historical eruptions in tenerife, canary islands: implication for mars

outcrop “las arenas” volcano tenerife canary islands spain terrestrial volcanic analog ancient mars great alteration mineralogy. martian studies. zeolite raman spectroscopy mössbauer spectroscopy diffraction infrared spectroscopy breakdown spectroscopy scanning microscopy zeolite carefully vibrational spectroscopy phillipsite. confirm results. raman spectrometer simulator capabilities mars mission. chemometrical vibrational mineral advantages raman spectroscopy geological context. diagenesis zeolites southern tenerife island confirmed twin prototypes used. “las arenas” volcano phillipsite proposed. complementary studie analogy mission established. emphasize synergy planetary missions

exact_dup

25333407

10.1103/PhysRevC.48.1285

Large discrepancies have been observed between measured Electromagnetic Dissociation(ED) cross sections and the predictions of the semiclassical Weiz\"acker-Williams-Fermi(WWF) method. In this paper, the validity of the semiclassical approximation is examined. The total cross section for electromagnetic excitation of a nuclear target by a spinless projectile is calculated in first Born approximation, neglecting recoil. The final result is expressed in terms of correlation functions and convoluted densities in configuration space. The result agrees with the WWF approximation to leading order(unretarded electric dipole approximation), but the method allows an analytic evaluation of the cutoff, which is determined by the details of the electric dipole transition charge density. Using the Goldhaber-Teller model of that density, and uniform charge densities for both projectile and target, the cutoff is determined for the total cross section in the nonrelativistic limit, and found to be smaller than values currently used for ED calculations. In addition, cross sections are calculated using a phenomenological momentum space cutoff designed to model final state interactions. For moderate projectile energies, the calculated ED cross section is found to be smaller than the semiclassical result, in qualitative agreement with experiment

Electromagnetic Dissociation of Nuclei in Heavy-Ion Collisions

electromagnetic dissociation of nuclei in heavy-ion collisions

discrepancies electromagnetic dissociation semiclassical weiz acker williams fermi method. validity semiclassical examined. electromagnetic spinless projectile born neglecting recoil. convoluted densities space. agrees unretarded dipole analytic cutoff dipole density. goldhaber teller densities projectile cutoff nonrelativistic calculations. phenomenological cutoff interactions. moderate projectile semiclassical qualitative

exact_dup

29137516

10.1007/s00366-006-0029-7

Polyhedral models are widely used for applications such as manufacturing, digital simulation or visualization. They are discrete models; easy to store, to manipulate, allowing levels of resolution for visualization. They can be easily exchanged between CAD systems without loss of data. Previous works (Comput Aided Des 29(4):287–298, 1997, Comput Graphics 22(5):565–585, 1998) have focused on simplification process applied to polyhedral part models. The goal of the proposed approach is to extend these processes to polyhedral assembly models, describing the digital mock-up of a future manufacturing product. To apply simplification techniques or other processes on polyhedral assemblies, contact surfaces between interacting objects have to be identified and specific constraints must be applied for processing. The approach proposed allows checking and maintaining a global consistency of the assembly model to ensure the reliability of the future processes. Thus, contacts between objects are detected using an approach that works for a static configuration of the assembly. Finally, a precise detection of the faces involved in each contact area is made and the resulting input domains identified are processed using a local Frontal Delaunay re-meshing technique to produce an identical tessellation on both objects involved in the processed contact. The quality of the triangulation produced is also checked

Identifying and remeshing contact interfaces in a polyhedral assembly for digital mock-up applications

identifying and remeshing contact interfaces in a polyhedral assembly for digital mock-up applications

polyhedral widely manufacturing digital visualization. store manipulate allowing visualization. exchanged data. comput aided comput graphics focused simplification polyhedral models. goal extend polyhedral assembly describing digital mock manufacturing product. simplification polyhedral assemblies interacting processing. checking maintaining consistency assembly ensure reliability processes. contacts assembly. precise faces processed frontal delaunay meshing tessellation processed contact. triangulation checked

exact_dup

29137653

10.1016/j.compstruct.2014.07.058

This work deals with the problem of the optimum design of a sandwich panel. The design strategy that we propose is a numerical optimisation procedure that does not make any simplifying assumption to obtain a true global optimum configuration of the system. To face the design of the sandwich structure at both meso and macro scales, we use a two-level optimisation strategy: at the first level we determine the optimal geometry of the unit cell of the core together with the material and geometric parameters of the laminated skins, while at the second level we determine the optimal skins lay-up giving the geometrical and material parameters issued from the first level. The two-level strategy relies both on the use of the polar formalism for the description of the anisotropic behaviour of the laminates and on the use of a genetic algorithm as optimisation tool to perform the solution search. To prove its effectiveness, we apply our strategy to the least-weight design of a sandwich plate, satisfying several constraints: on the first buckling load, on the positive-definiteness of the stiffness tensor of the core, on the ratio between skins and core thickness and on the admissible moduli for the laminated skins

A multi-scale approach for the optimum design of sandwich plates with honeycomb core. Part II: the optimisation strategy

a multi-scale approach for the optimum design of sandwich plates with honeycomb core. part ii: the optimisation strategy

deals optimum sandwich panel. propose optimisation simplifying optimum system. sandwich meso macro optimisation geometric laminated skins skins giving geometrical issued level. relies polar formalism anisotropic laminates optimisation search. effectiveness sandwich plate satisfying buckling definiteness stiffness skins admissible moduli laminated skins

exact_dup

30934659

10.1016/j.jcrysgro.2015.07.003

We have produced isotopically enriched ZnO nanorods using Zn-enriched ZnO source powder by vapour phase transport on silicon substrates buffer-coated with unenriched ZnO seed layers. SEM and XRD data confirm successful growth of high quality, dense, c-axis aligned nanorods over a substantial surface area. Raman data show a shift of >1 cm-1 in the peak position of the Raman scattered peaks due to the E2low and E2high phonon modes when the Zn isotope is changed from 64Zn to 68Zn, consistent with previous work, thus confirming successful isotopic enrichment. SIMS data provides additional confirmation of enrichment. The optical quality (as determined by photoluminescence feature intensity and linewidth) is excellent. Samples with Zn isotopic enrichment ranging from 64ZnO to 68ZnO display a shift in recombination energy of the bound excitons at the band edge (3.34 - 3.37 eV) of ~ 0.6 meV. This blue shift is also consistent with previously published data, further confirming both the excellent optical quality and successful isotopic substitution of ZnO nanorods using this relatively simple growth method

Growth of isotopically enriched ZnO nanorods of excellent optical quality

growth of isotopically enriched zno nanorods of excellent optical quality

isotopically enriched nanorods enriched powder vapour silicon substrates coated unenriched seed layers. confirm successful dense aligned nanorods substantial area. raman raman scattered phonon isotope changed confirming successful isotopic enrichment. sims confirmation enrichment. photoluminescence linewidth excellent. isotopic enrichment ranging display recombination excitons mev. confirming excellent successful isotopic substitution nanorods

exact_dup

30934799

10.1049/iet-sen.2014.0071

In recent years, there has been an increasing interest in exploring personality differences to improve work experience in software organisations. This study presents a personality assessment process conducted on 382 software practitioners using the Keirsey temperament sorter II. The primary goal of this assessment is to explore the personality temperaments of software practitioners working in different types of software development organisations. In addition, a novel visualisation approach is proposed for arranging temperaments using a periodic table-like structure. The results suggest that the authors approach provides an effective means to investigate an organisation's personality profile while assessing personality types

Understanding personality differences in software organizations using Keirsey Temperament Sorter

understanding personality differences in software organizations using keirsey temperament sorter

exploring personality organisations. presents personality practitioners keirsey temperament sorter goal explore personality temperaments practitioners organisations. visualisation arranging temperaments structure. organisation personality assessing personality

exact_dup

33898925

10.1023/B:JOTA.0000012737.20285.33

The paper addressed the issue of the optimal investments in innovations with strong long-term aftereffects. As an example, investments in the construction of gas pipelines are considered. The most sensitive part of an investment project is the choice of commercialization time (stopping time), i.e., the time of finalizing the construction of the pipeline. If several projects compete in the market, the choices of the commercialization times determine the future structure of the market and thus become specially important. Rational decisions in this respect can be associated with Nash equilibria in a game between the projects. In this game, the total benefits gained during the pipelines life periods act as payoffs and the commercialization times as strategies. The goal of this paper is to characterize multiequilibria in the game of timing. The case of two players is studied in detail. A key point in the analysis is the observation that, for all players, the best response commercialization times concentrate at two instants that are fixed in advance. This reduces decisionmaking to choosing between two fixed investment policies (fast and slow) with the prescribed commercialization times. A description of a simple algorithm that finds all the Nash equilibria composed of fast and slow scenarios concludes the paper

Multiequilibrium Game of Timing and Competition of Gas Pipeline Projects

multiequilibrium game of timing and competition of gas pipeline projects

addressed investments innovations aftereffects. investments pipelines considered. investment commercialization stopping i.e. finalizing pipeline. projects compete choices commercialization specially important. rational decisions nash equilibria game projects. game benefits gained pipelines payoffs commercialization strategies. goal characterize multiequilibria game timing. players detail. players commercialization concentrate instants advance. reduces decisionmaking choosing investment policies slow prescribed commercialization times. finds nash equilibria composed slow scenarios concludes

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35083661

10.1007/JHEP05(2014)107

We present the $ \mathcal{O}\left( {\alpha_s^3} \right) $ virtual QCD corrections to the process h → g + g + g due to interference of born and two-loop amplitudes, where h is a massive spin-2 particle and g is the gluon. We assume that the SM fields couple to h through the SM energy momentum tensor. Our result constitutes one of the ingredients to full NNLO QCD contribution to production of a massive spin-2 particle along with a jet in the scattering process at the LHC. In particular, this massive spin-2 could be a KK mode of a ADD graviton in large extra dimensional model or a RS KK mode in warped extra dimensional model or a generic massive spin-2. In addition, it provides an opportunity to study the ultraviolet and infrared structures of QCD amplitudes involving tensorial coupling resulting from energy momentum operator. Using dimensional regularization, we find that infrared poles of this amplitude are in agreement with the proposal by Catani confirming the factorization property of QCD amplitudes with tensorial insertion

Two-Loop QCD correction to massive spin-2 resonance → 3 gluons

two-loop qcd correction to massive spin-2 resonance → 3 gluons

mathcal alpha virtual interference born amplitudes massive gluon. couple tensor. constitutes ingredients nnlo massive lhc. massive graviton extra warped extra generic massive opportunity ultraviolet infrared amplitudes involving tensorial operator. regularization infrared poles proposal catani confirming factorization amplitudes tensorial insertion

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35089333

10.1007/JHEP06(2015)178

Generalizing matrix models, tensor models generate dynamical triangulations in any dimension and support a 1/ N expansion. Using the intermediate field representation we explicitly rewrite a quartic tensor model as a field theory for a fluctuation field around a vacuum state corresponding to the resummation of the entire leading order in 1/ N (a resummation of the melonic family). We then prove that the critical regime in which the continuum limit in the sense of dynamical triangulations is reached is precisely a phase transition in the field theory sense for the fluctuation field

Phase transition in tensor models

phase transition in tensor models

generalizing triangulations expansion. explicitly rewrite quartic fluctuation resummation resummation melonic continuum triangulations reached precisely fluctuation

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35091139

10.1088/1475-7516/2015/03/024

The mechanism of thermal inflation, a relatively short period of accelerated expansion after primordial inflation, is a desirable ingredient for a certain class of particle physics models if they are not to be in contention with the cosmology of the early Universe. Though thermal inflation is most simply described in terms of a thermal effective potential, a thermal environment also gives rise to thermal fluctuations that must be taken into account. We numerically study the effects of these thermal fluctuations using lattice simulations. We conclude that though they do not ruin the thermal inflation scenario, the phase transition at the end of thermal inflation proceeds through phase mixing and is therefore not accompanied by the formations of bubbles nor appreciable amplitude of gravitational waves

Effects of thermal fluctuations on thermal inflation

effects of thermal fluctuations on thermal inflation

inflation accelerated primordial inflation desirable ingredient contention cosmology universe. inflation account. numerically simulations. ruin inflation inflation proceeds accompanied formations bubbles appreciable gravitational

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35094696

10.1088/1367-2630/11/6/065010

The experimental search for ultra high energy cosmic messengers, from $E\sim 10^{19}$ eV to beyond $E\sim 10^{20}$ eV, at the very end of the known energy spectrum, constitutes an extraordinary opportunity to explore a largely unknown aspect of our universe. Key scientific goals are the identification of the sources of ultra high energy particles, the measurement of their spectra and the study of galactic and local intergalactic magnetic fields. Ultra high energy particles might, also, carry evidence of unknown physics or of exotic particles relics of the early universe. To meet this challenge a significant increase in the integrated exposure is required. This implies a new class of experiments with larger acceptances and good understanding of the systematic uncertainties. Space based observatories can reach the instantaneous aperture and the integrated exposure necessary to systematically explore the ultra high energy universe. In this paper, after briefly summarising the science case of the mission, we describe the scientific goals and requirements of the SEUSO concept. We then introduce the SEUSO observational approach and describe the main instrument and mission features. We conclude discussing the expected performance of the mission

Observing Ultra High Energy Cosmic Particles from Space: SEUSO, the Super Extreme Universe Space Observatory Mission

observing ultra high energy cosmic particles from space: seuso, the super extreme universe space observatory mission

ultra cosmic messengers constitutes extraordinary opportunity explore largely unknown aspect universe. goals ultra galactic intergalactic fields. ultra carry unknown exotic relics universe. meet challenge required. acceptances uncertainties. observatories instantaneous aperture systematically explore ultra universe. briefly summarising mission goals seuso concept. seuso observational instrument mission features. discussing mission

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41143922

10.1007/978-3-319-21395-8_21

In this chapter I consider the syntactic properties of a particular kind of parentheticals, those introducing Quotations – henceforth, QU – and Free Indirect Discourse – henceforth, FID. \ud Consider the following examples: (1) I will leave tomorrow, said John (2) The new ration did not start till tomorrow and he had only four cigarettes left, thought Winston (adapted, from Orwell 1984). Example (1) is a QU structure and the parenthetical in question is said John. \ud Example (2) is a FID construction and the parenthetical is thought Winston. As already well known, they have special properties from an interpretive, syntactic and phonological point of view. QU and FID parentheticals are alike under many points of view, even if the two constructions must be kept separate, especially with respect to the interpretation of pronouns and verbal forms. For the purposes of this work, I will in general consider them alike. \ud Observe now the following paradigm: (3) John said that Mary left (4) John said: “Mary left” (5) Maria, said John, left.\ud It seems to me that the most important goal for a syntactic analysis is to provide a coherent analysis of the similarities and differences among the constructions in (3)- (5). At first sight, these structures seem very much alike, both from the point of view of their meaning and their syntax – to the extent that some scholars have proposed a direct syntactic derivation (Emonds 1973; Ross 1973), for instance of (5) starting from (3). I will show here that the situation is indeed much more complex than that. In particular, in this paper I show that example (5) is closer to (4) than to (3). The approach I will develop here is an integrated view of parentheticals, complying with Kayne’s (1994) Linear Correspondence Axiom (LCA)

Integrated parentheticals in quotations and free indirect discourse

integrated parentheticals in quotations and free indirect discourse

syntactic kind parentheticals introducing quotations henceforth indirect discourse henceforth fid. leave tomorrow said john ration till tomorrow cigarettes thought winston adapted orwell parenthetical said john. parenthetical thought winston. interpretive syntactic phonological view. parentheticals alike constructions kept pronouns verbal forms. purposes alike. paradigm john said mary john said “mary left” maria said john left. goal syntactic coherent similarities constructions sight seem alike meaning syntax scholars syntactic derivation emonds ross that. closer parentheticals complying kayne’s correspondence axiom

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46755935

10.1007/s10751-015-1198-9

International audienceThe experimental achievements and the results obtained so far with the LPCTrap device installed at GANIL are presented. The apparatus is dedicated to the study of the weak interaction at low energy by means of precise measurements of the – angular correlation parameter in nuclear  decays. So far, the data collected with three isotopes have enabled to determine, for the first time, the charge state distributions of the recoiling ions, induced by shakeoff process. The analysis is presently refined to deduce the correlation parameters, with the potential of improving both the constraint deduced at low energy on exotic tensor currents (6 He 1+) and the precision on the V ud element of the quark-mixing matrix (35 Ar 1+ and 19 Ne 1+) deduced from the mirror transitions dataset

Precision measurements with LPCTrap at GANIL

precision measurements with lpctrap at ganil

audiencethe achievements lpctrap installed ganil presented. apparatus dedicated precise decays. isotopes enabled recoiling shakeoff process. presently refined deduce improving deduced exotic currents precision deduced mirror dataset

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46772408

10.1103/PhysRevC.80.011307

5 pagesInternational audienceNuclei are propitious tools to investigate the role of the superfluidity in the compressibility of a Fermionic system. The centroid of the Giant Monopole Resonance (GMR) in Tin isotopes is predicted using a constrained Hartree-Fock Bogoliubov approach, ensuring a full self-consistent treatment. Superfluidity is found to favour the compressibitily of nuclei. Pairing correlations explain why doubly magic nuclei such as $^{208}$Pb are stiffer compared to open-shell nuclei. Fully self-consistent predictions of the GMR on an isotopic chain should be the way to microscopically extract both the incompressibility and the density dependence of a given energy functional. The macroscopic extraction of K$_{sym}$, the asymmetry incompressibility, is questioned. Investigations of the GMR in unstable nuclei are called for. Pairing gap dependence of the nuclear matter incompressibility should also be investigated

The role of superfluidity in nuclear incompressibilities

the role of superfluidity in nuclear incompressibilities

pagesinternational audiencenuclei propitious superfluidity compressibility fermionic system. centroid giant monopole isotopes constrained hartree fock bogoliubov ensuring treatment. superfluidity favour compressibitily nuclei. pairing doubly magic nuclei stiffer nuclei. isotopic microscopically extract incompressibility functional. macroscopic extraction asymmetry incompressibility questioned. investigations unstable nuclei for. pairing incompressibility

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46778536

10.1016/j.jcis.2006.04.053

The speciation of Eu complexed with polyacrylic acid (PAA) and alumina-bound PAA (PAAads) was studied at pH 5 in 0.1 M NaClO4. Structural parameters were obtained from 7F0 → 5D0 excitation spectra measured by laser-induced fluorescence spectroscopy as well as from Eu LIII-edge extended X-ray absorption fine structure (EXAFS) spectra. The coordination mode was also investigated by infrared spectroscopy. To elucidate the nature of the complexed species, Eu–acetate complexes were used as references. The spectroscopic techniques show that two carboxylate groups with 2–3 (EuPAA) and 4–5 (EuPAAads) water molecules are coordinated to Eu in the first coordination sphere. For EuPAAads, the coordination between carboxylate groups and Eu appears to be bidendate. A similar coordination is probable for EuPAA but the EXAFS data indicate a slightly distorted coordination. The results show that the degree of freedom of carboxylate groups is not the same for free or adsorbed PAA. For PAA, the degree of freedom is constrained by the flexibility of the methylene chain. When PAA is adsorbed on alumina, the polymer chains cannot any more be treated as independent chains. One may rather assume formation of aggregates that form an organic layer at the mineral surface presenting a complex arrangement of carboxylate groups

Comparison of complexed species of Eu in alumina-bound and free polyacrylic acid: A spectroscopic study

comparison of complexed species of eu in alumina-bound and free polyacrylic acid: a spectroscopic study

speciation complexed polyacrylic alumina paaads naclo fluorescence spectroscopy liii fine exafs spectra. coordination infrared spectroscopy. elucidate complexed eu–acetate complexes references. spectroscopic carboxylate eupaa eupaaads coordinated coordination sphere. eupaaads coordination carboxylate bidendate. coordination probable eupaa exafs distorted coordination. freedom carboxylate adsorbed paa. freedom constrained flexibility methylene chain. adsorbed alumina polymer chains chains. aggregates mineral presenting arrangement carboxylate

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47098259

10.1007/s11228-011-0191-y

International audienceWe propose a primal-dual splitting algorithm for solving monotone inclusions involving a mixture of sums, linear compositions, and parallel sums of set-valued and Lipschitzian operators. An important feature of the algorithm is that the Lipschitzian operators present in the formulation can be processed individually via explicit steps, while the set-valued operators are processed individually via their resolvents. In addition, the algorithm is highly parallel in that most of its steps can be executed simultaneously. This work brings together and notably extends various types of structured monotone inclusion problems and their solution methods. The application to convex minimization problems is given special attention

Primal-dual splitting algorithm for solving inclusions with mixtures of composite, Lipschitzian, and parallel-sum type monotone operators

primal-dual splitting algorithm for solving inclusions with mixtures of composite, lipschitzian, and parallel-sum type monotone operators

audiencewe propose primal splitting solving monotone inclusions involving mixture sums compositions sums valued lipschitzian operators. lipschitzian formulation processed individually valued processed individually resolvents. executed simultaneously. brings notably extends structured monotone inclusion methods. convex minimization

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47101791

10.1016/j.nima.2010.06.263

With an instrumented volume of about 0.015 km3, ANTARES is currently the largest neutrino telescope operating in the Northern Hemisphere. One of its main goals is the detection of high-energy neutrinos from (extra-)galactic astrophysical sources. Such observations would provide important clues about the processes at work in those sources, and possibly help solve the puzzle of ultra-high energy cosmic rays. In this context, ANTARES is developing several on- and off-line programs to improve its capabilities of revealing possible correlations (in space and time) of neutrinos with other cosmic messengers: photons (in different ranges of wavelengths), cosmic rays and gravitational waves

Multi-messenger programs in ANTARES: Status and prospects

multi-messenger programs in antares: status and prospects

instrumented antares telescope operating northern hemisphere. goals neutrinos extra galactic astrophysical sources. clues possibly solve puzzle ultra cosmic rays. antares programs capabilities revealing neutrinos cosmic messengers photons ranges wavelengths cosmic rays gravitational

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