bluuebunny/crossref_metadata_2025_split huggingface dataset:
Experimental determination of Henry's law constants of difluoromethane (HFC-32) and the salting-out effects in aqueous salt solutions relevant to seawater
Authors: Kutsuna Shuzo 
Published: June 2017

Abstract. Gas-to-water equilibrium coefficients, KeqS (in M atm−1), of difluoromethane (CH2F2), a hydrofluorocarbon refrigerant (HFC-32), in aqueous salt solutions relevant to seawater were determined over a temperature (T) range from 276 to 313 K and a salinity (S) range up to 51 ‰ by means of an inert-gas stripping method. From the van't Hoff equation, the KeqS value in water, which corresponds to the Henry's law constant (KH), at 298 K was determined to be 0.065 M atm−1. The salinity dependence of KeqS (the salting-out effect), ln(KH∕KeqS), did not obey the Sechenov equation but was proportional to S0. 5. Overall, the KeqS(T) value was expressed by ln(KeqS(T))  =  −49.71 + (77.70 − 0.134  ×  S0. 5)  ×  (100∕T) + 19.14  ×  ln(T∕100). By using this equation in a lower-tropospheric semi-hemisphere (30–90 °S) of the Advanced Global Atmospheric Gases Experiment (AGAGE) 12-box model, we estimated that 1 to 4 % of the atmospheric burden of CH2F2 resided in the ocean mixed layer and that this percentage was at least 4 % in the winter; dissolution of CH2F2 in the ocean may partially influence estimates of CH2F2 emissions from long-term observational data of atmospheric CH2F2 concentrations.
CARDIOPATHIES CONGÉNITALES : PHYSIOPATHOLOGIE, FACTEURS DE RISQUE ET PROFILS NEUROPSYCHOLOGIQUES
Authors: Fourdain Solène , Vanasse Catherine-Marie , Poirier Nancy , Carmant Lionel , Gallagher Anne 
Published: June 2017

Les cardiopathies congénitales (CC) sont les malformations les plus fréquentes chez le nouveau-né. La littérature des dernières décennies a mis en évidence des retards développementaux fréquents dans cette population, notamment sur le plan de la motricité, du fonctionnement intellectuel global, du langage, de la mémoire, de l’attention et des fonctions exécutives. Le présent article propose une revue de littérature concernant la physiopathologie de ces retards et les facteurs susceptibles d’en augmenter les risques. Les profils neuropsychologiques associés à la présence d’une CC, ainsi que leur impact sur les acquisitions scolaires, l’adaptation comportementale et la qualité de vie seront présentés.
EXPÉRIENCE D’AIDANT DES PROCHES DE PERSONNES ATTEINTES D’UN TROUBLE DE LA CONDUITE ALIMENTAIRE : RECENSION CRITIQUE DE LA LITTÉRATURE
Authors: Blondin Soline , Meilleur Dominique 
Published: June 2017

L’objectif de cet article est de dresser un portrait de l’état des connaissances des études qualitatives et quantitatives portant sur l’expérience subjective des aidants naturels de personnes atteintes d’un trouble de la conduite alimentaire. L’analyse des résultats des 26 articles sélectionnés fait ressortir trois grands thèmes : l’expérience subjective du rôle d’aidant, la perception de la maladie, et la perception de l’aide offerte et des professionnels. Les études qualitatives et quantitatives s’accordent sur le fait que prendre soin d’une personne souffrant d’un TCA est une expérience difficile qui entraîne des conséquences importantes au niveau émotionnel. Les résultats de la recension sont discutés et des applications cliniques sont proposées. Des orientations pour des recherches futures sont suggérées.
LES CARACTÉRISTIQUES DES UTILISATEURS DE SITES DE SOCIALISATION VIRTUELLE : PERSONNALITÉ, ATTACHEMENT ET FONCTIONNEMENT CONJUGAL
Authors: Ferron Anik , Lussier Yvan , Sabourin Stéphane , Brassard Audrey 
Published: June 2017

Depuis leur création en 2004, les sites de socialisation virtuelle sont devenus des plateformes de communication privilégiées par plusieurs internautes. La présente étude vise à examiner les liens entre l’utilisation des sites de socialisation virtuelle et diverses variables intrapersonnelles et relationnelles. Dans la présente étude, 822 participants en relation de couple ont répondu à un questionnaire sur Internet. Les résultats indiquent que plus les internautes affichent des taux élevés d’attachement anxieux, de névrosisme et de cyberinfidélité, plus ils consacrent de temps à leurs activités sur les sites de socialisation virtuelle. Les résultats des analyses de régression multiple soulignent que le nombre d’amis sur Facebook, ainsi que les problèmes reliés à l’utilisation de Facebook contribuent significativement à l’explication de la variance associée à l’ajustement conjugal et la satisfaction sexuelle.
LE SOUTIEN SOCIAL, LA DÉTRESSE PSYCHOLOGIQUE, LE BIEN-ÊTRE ET LE FONCTIONNEMENT SCOLAIRE DE JEUNES LESBIENNES, GAIS ET BISEXUELS (LGB) QUÉBÉCOIS
Authors: Létourneau-Picard Marie-Hélène , Sallafranque St-Louis François , Green-Demers Isabelle 
Published: June 2017

L’objectif du présent projet était d’examiner les associations entre le soutien de la famille et des amis, le rapport à l’orientation sexuelle, la détresse, le bien-être et le fonctionnement scolaire de jeunes lesbiennes, gais et bisexuel(le)s québécois (n = 29). Les résultats ont révélé que le soutien de la famille était négativement associé au rapport conflictuel à l’orientation sexuelle ainsi qu’à la détresse et positivement associé au bien-être. Le soutien des amis était associé négativement à la peur de la violence homophobe et positivement au bien-être. Le rapport conflictuel à l’orientation sexuelle était associé positivement à la détresse et négativement au bien-être. Le soutien des enseignants était positivement associé à la motivation scolaire et négativement à la violence homophobe, cette dernière étant négativement associée à la motivation.
FONCTIONNEMENT RÉFLEXIF DE LA MÈRE ET ATTACHEMENT DE L’ENFANT : UNE ÉTUDE PROSPECTIVE DES LIENS AVEC LA SENSIBILITÉ ET L’ORIENTATION MENTALE MATERNELLE
Authors: Bérubé-Beaulieu Éva , Ensink Karin , Normandin Lina 
Published: June 2017

L'objectif de l’étude est d’examiner l’association du fonctionnement réflexif (FR) et de l’orientation mentale maternelle (OMM) à l’attachement de l’enfant, par l’entremise de la sensibilité maternelle. Le FR a été évalué grâce à l’entrevue d’attachement chez l’adulte (AAI), alors que l’OMM et la sensibilité l’ont été lors de situations d’interaction. La situation étrangère, effectuée auprès de 88 dyades mère-enfant, a permis de mesurer l’attachement de l’enfant. Les analyses acheminatoires montrent que le lien entre le FR et l’attachement de l’enfant est médié par la sensibilité. La sensibilité médie également la relation entre l’OMM approprié et l’attachement de l’enfant. Les implications quant aux interventions possibles sont discutées.
CAPACITÉS DE MENTALISATION SPÉCIFIQUE AU TRAUMA AUPRÈS D’ADULTES AYANT SUBI DES AGRESSIONS SEXUELLES DURANT L’ENFANCE
Authors: Maheux Julie , Collin-Vézina Delphine , Macintosh Heather , Berthelot Nicolas , Hétu Sébastien 
Published: June 2017

Les capacités de mentalisation des victimes d’agression sexuelle vécue durant l’enfance (ASE) sont méconnues. L’étude propose de mesurer et décrire les capacités de mentalisation spécifique au trauma chez 30 adultes ayant subi des ASE. Ces capacités sont codifiées à partir d’une entrevue sur les dévoilements de l’ASE. Quarante pourcent des participants présentent des capacités de mentalisation déficitaires, 33 % des capacités de mentalisation rudimentaires et 28 % une mentalisation efficiente. Des exemples de manifestations de mentalisation sont décrits. Ces résultats permettent de mieux comprendre les capacités de mentalisation des victimes à l’égard des expériences traumatiques. Les implications cliniques sont discutées.
ACTIVITÉS MENTALES LORS DE L’ÉCOUTE THÉRAPEUTIQUE : ÉTABLISSEMENT DE PROFILS ET INFLUENCE DE CARACTÉRISTIQUES PERSONNELLES
Authors: Maheux Julie , Normandin Lina , Parent Kathy , Ensink Karin , Sabourin Stéphane 
Published: June 2017

La capacité de mentalisation du thérapeute, habileté lui permettant de comprendre le monde interne du patient et le sien en contexte clinique, est un processus à la fois cognitif et affectif pouvant être opérationnalisé à l’aide du construit d’Activité Mentale du Thérapeute (AM-T). La grille d’AM-T comprend trois échelles mesurant les modes rationnel/objectif, réactif/impulsif et réflexif/mentalisant. Les AM-T de 107 thérapeutes expérimentés et en formation ont été mesurées. Trois profils distincts d’AM-T ont été identifiés. Une différence en ce qui a trait à l’expérience a été retrouvée entre les profils. Les implications théoriques et cliniques de ces profils seront discutées.
Fast positive breakdown in lightning
Authors: Stock M. G. , Krehbiel P. R. , Lapierre J. , Wu T. , Stanley M. A. , Edens H. E. 
Published: June 2017

AbstractVHF radiation sources produced by positive breakdown during lightning discharges are generally considered to be both weak and slowly propagating. However, as VHF lightning mapping systems have become more sensitive, even this weak radiation can be mapped. In addition to being a faint process, positive breakdown often produces bursts of energetic activity. During the bursts, the VHF emission is extremely bright, and the breakdown propagates at much higher speeds. Here we present VHF interferometric and time‐of‐arrival measurements of such fast positive breakdown events produced during three example flashes. Electric field change measurements show that the fast breakdown process carries positive charge. The extent and velocity of the breakdown is estimated by converting the angular source locations provided by the interferometer into Cartesian coordinates using three‐dimensional lightning mapping observations of the flash as a guide. Fast positive breakdown events are found to extend 100–2400 m into virgin air beyond the tip of the preceding positive leader, at speeds of 0.9–9 ×107 m s−1. The observations expand upon earlier observations of such breakdown and are similar to recently reported results that fast positive breakdown is the cause of high‐power narrow bipolar events.
Eclogite inclusions from subducted metaigneous continental crust (Malpica‐Tui Allochthonous Complex, NW Spain): Petrofabric, geochronology, and calculated seismic properties
Authors: Puelles P. , Beranoaguirre A. , Ábalos B. , Gil Ibarguchi J. I. , García de Madinabeitia S. , Rodríguez J. , Fernández‐Armas S. 
Published: June 2017

AbstractThis study describes the strain geometry, crystal‐plastic deformational features, isotopic age of metamorphism, and calculated seismic properties of two medium‐temperature eclogite types from the Malpica‐Tui Allochthonous Complex of Variscan NW Iberia. The eclogite types are eclogites with coronitic garnets and eclogites with a planolinear fabric. Both of them were buried, deformed and recrystallized under maximum pressure and temperature of 2.6 GPa and 610–640°C, and subsequently exhumed in a late Devonian subduction channel. The metamorphic peak of the subduction‐exhumation cycle occurred ~375 Ma ago. Omphacite petrofabric ties eclogites with coronitic garnet to noncoaxial constrictional strain and eclogites with planolinear fabrics to noncoaxial flattening strain and stretching along the lineation. We also used omphacite crystallographic preferred orientations to calculate and constrain the seismic properties of the eclogites. The slight variations in petrophysical properties observed are interpreted to result from variations in the strain regime recorded by pristine eclogites, or from variations in the modal proportions of the constituent high‐pressure minerals. We foresee that eclogite in subduction metamorphic complexes might be either seismically undetectable or detected as planar features with high impedance contrasts relative to their host rocks.
ULF geomagnetic activity effects on tropospheric temperature, specific humidity, and cloud cover in Antarctica, during 2003–2010
Authors: Regi Mauro , Redaelli Gianluca , Francia Patrizia , De Lauretis Marcello 
Published: June 2017

AbstractIn the present study we investigated the possible relationship between the ULF geomagnetic activity and the variations of several atmospheric parameters. In particular, we compared the ULF activity in the Pc1‐2 frequency band (100 mHz–5 Hz), computed from geomagnetic field measurements at Terra Nova Bay in Antarctica, with the tropospheric temperature T, specific humidity Q, and cloud cover (high cloud cover, medium cloud cover, and low cloud cover) obtained from reanalysis data set. The statistical analysis was conducted during the years 2003–2010, using correlation and Superposed Epoch Analysis approaches. The results show that the atmospheric parameters significantly change following the increase of geomagnetic activity within 2 days. These changes are evident in particular when the interplanetary magnetic field Bz component is oriented southward (Bz<0) and the By component duskward (By>0). We suggest that both the precipitation of electrons induced by Pc1‐2 activity and the intensification of the polar cap potential difference, modulating the microphysical processes in the clouds, can affect the atmosphere conditions.
Modeling the isotopic evolution of snowpack and snowmelt: Testing a spatially distributed parsimonious approach
Authors: Ala‐aho Pertti , Tetzlaff Doerthe , McNamara James P. , Laudon Hjalmar , Kormos Patrick , Soulsby Chris 
Published: June 2017

AbstractUse of stable water isotopes has become increasingly popular in quantifying water flow paths and travel times in hydrological systems using tracer‐aided modeling. In snow‐influenced catchments, snowmelt produces a traceable isotopic signal, which differs from original snowfall isotopic composition because of isotopic fractionation in the snowpack. These fractionation processes in snow are relatively well understood, but representing their spatiotemporal variability in tracer‐aided studies remains a challenge. We present a novel, parsimonious modeling method to account for the snowpack isotope fractionation and estimate isotope ratios in snowmelt water in a fully spatially distributed manner. Our model introduces two calibration parameters that alone account for the isotopic fractionation caused by sublimation from interception and ground snow storage, and snowmelt fractionation progressively enriching the snowmelt runoff. The isotope routines are linked to a generic process‐based snow interception‐accumulation‐melt model facilitating simulation of spatially distributed snowmelt runoff. We use a synthetic modeling experiment to demonstrate the functionality of the model algorithms in different landscape locations and under different canopy characteristics. We also provide a proof‐of‐concept model test and successfully reproduce isotopic ratios in snowmelt runoff sampled with snowmelt lysimeters in two long‐term experimental catchment with contrasting winter conditions. To our knowledge, the method is the first such tool to allow estimation of the spatially distributed nature of isotopic fractionation in snowpacks and the resulting isotope ratios in snowmelt runoff. The method can thus provide a useful tool for tracer‐aided modeling to better understand the integrated nature of flow, mixing, and transport processes in snow‐influenced catchments.
Reply to comment by Ma and Zhang on “Rescaling the complementary relationship for land surface evaporation”
Authors: Crago Richard , Qualls Russell , Szilagyi Jozsef , Huntington Justin 
Published: June 2017

AbstractMa and Zhang (2017) note a concern they have with our rescaled Complementary Relationship (CR) for land surface evaporation when daily average wind speeds are very low (perhaps less than 1 m/s). We discuss conditions and specific formulations that lead to this concern, but ultimately argue that under these conditions, a key assumption behind the CR itself may not be satisfied at the daily time scale. Thus, careful consideration of the reliability of the CR is needed when wind speeds are very low.
Copper‐Catalyzed Aerobic Oxygenation of Benzylpyridine N‐Oxides and Subsequent Post‐Functionalization
Authors: Sterckx Hans , Sambiagio Carlo , Médran‐Navarrete Vincent , Maes Bert U. W. 
Published: June 2017

AbstractA copper‐catalyzed aerobic oxidation of benzylpyridine N‐oxides is reported. The N‐oxide moiety acts as a built‐in activator for the benzylic methylene oxidation, without requirement of additives. Reaction conditions were identified which suppress undesired benzoylpyridine formation via N‐deoxygenation involving intermolecular oxygen transfer. The versatility of the N‐oxide group of the benzoylpyridine N‐oxide reaction products for post‐functionalization of the pyridine ring is demonstrated through efficient C–C, C–N, C–O and C–Cl bond forming procedures, with both nucleophiles and electrophiles. Finally, the applicability of the new synthetic methodology is demonstrated in an alternative route towards the antihistaminic drug Acrivastine via three consecutive N‐oxide activated C–H functionalization processes, starting from picoline N‐oxide.magnified image
A Stretchable Electrochemical Sensor for Inducing and Monitoring Cell Mechanotransduction in Real Time
Authors: Liu Yan‐Ling , Qin Yu , Jin Zi‐He , Hu Xue‐Bo , Chen Miao‐Miao , Liu Rong , Amatore Christian , Huang Wei‐Hua 
Published: June 2017

AbstractExisting methods offer little direct and real‐time information about stretch‐triggered biochemical responses during cell mechanotransduction. A novel stretchable electrochemical sensor is reported that takes advantage of a hierarchical percolation network of carbon nanotubes and gold nanotubes (CNT‐AuNT). This hybrid nanostructure provides the sensor with excellent time‐reproducible mechanical and electrochemical performances while granting very good cellular compatibility, making it perfectly apt to induce and monitor simultaneously transient biochemical signals. This is validated by monitoring stretch‐induced transient release of small signaling molecules by both endothelial and epithelial cells cultured on this sensor and submitted to stretching strains of different intensities. This work demonstrates that the hybrid CNT‐AuNT platform offers a versatile and highly sensitive way to characterize and quantify short‐time mechanotransduction responses.
The fabrication of iron oxide nanoparticle‐nanofiber composites by electrospinning and their applications in tissue engineering
Authors: Mortimer Chris J. , Wright Chris J. 
Published: June 2017

AbstractThis paper reviews the use of iron oxide nanoparticle‐nanofiber composites in tissue engineering with a focus on the electrospinning technique. Electrospinning is an established method of scaffold fabrication offering a number of key advantages which include its facile nature, with electrospun materials offering a high surface area to volume ratio, potential for the release of drugs and antimicrobials, controllable fiber diameters and high porosity and permeability. A number of different techniques for the preparation of iron oxide nanoparticles including their functionalization are discussed along with their applications in the biomedical field. The review then focusses on the fabrication of nanoparticle‐nanofiber composite scaffolds formed using electrospinning. The advantages and disadvantages of current fabrication techniques are discussed including the fabrication of nanofibers using pre‐synthesized nanoparticles and post‐treatment synthesized nanoparticles. We demonstrate that emerging in‐situ synthesis techniques show promise by offering a reduced number of steps and simpler procedures for the production of magnetic scaffolds. These scaffolds have a number of applications in tissue engineering, allowing for improved bone and tissue repair.
Molecular Tools for Facilitative Carbohydrate Transporters (Gluts)
Authors: Tanasova Marina , Fedie Joseph R. 
Published: June 2017

AbstractFacilitative carbohydrate transporters—Gluts—have received wide attention over decades due to their essential role in nutrient uptake and links with various metabolic disorders, including diabetes, obesity, and cancer. Endeavors directed towards understanding the mechanisms of Glut‐mediated nutrient uptake have resulted in a multidisciplinary research field spanning protein chemistry, chemical biology, organic synthesis, crystallography, and biomolecular modeling. Gluts became attractive targets for cancer research and medicinal chemistry, leading to the development of new approaches to cancer diagnostics and providing avenues for cancer‐targeting therapeutics. In this review, the current state of knowledge of the molecular interactions behind Glut‐mediated sugar uptake, Glut‐targeting probes, therapeutics, and inhibitors are discussed.
Li/MgO Catalysts Doped with Alio‐valent Ions. Part I: Structure, Composition, and Catalytic Properties
Authors: Arndt Sebastian , Simon Ulla , Kiefer Klaus , Otremba Torsten , Siemensmeyer Konrad , Wollgarten Markus , Berthold Almuth , Schmidt Franziska , Görke Oliver , Schomäcker Reinhard , Dinse Klaus‐Peter 
Published: June 2017

AbstractDoping of Li/MgO with additional metal ions is suggested leading to an improved system with respect to the catalytic performance and stability when used for oxidative coupling of methane. We used Gd and Fe as dopants and characterized the resulting materials, showing that Fe seems to be completely and Gd partly incorporated into the MgO lattice. The catalytic performance is improved in most cases, but all materials still suffer from severe deactivation. A loss of Li is observed when being used under reaction conditions, but this Li loss is retarded for Fe‐Li/MgO as compared to undoped Li/MgO.
Ni/Fe Ratio Dependence of Catalytic Activity in Monodisperse Ternary Nickel Iron Phosphide for Efficient Water Oxidation
Authors: Tang Kai , Wang Xianfu , Wang Mengfan , Xie Yiming , Zhou Jinqiu , Yan Chenglin 
Published: June 2017

AbstractElectrochemical water splitting is an effective way to obtain hydrogen fuel as a clean and renewable energy source. However, a major challenge is to accelerate the sluggish oxygen evolution reaction (OER) kinetics with a multistep proton‐coupled electron‐transfer process. Transition metal Ni‐ and Co‐based composites have been developed to replace expensive and scare noble metal based OER catalysts. So far, layered NiFe double hydroxide represents the best OER activity among all Ni‐ and Co‐based oxides. Herein, monodispersed ternary (Ni1‐xFex)12P5 nanocrystalline materials with tunable Ni/Fe ratios are reported as highly efficient OER electrocatalysts, exhibiting activity and stability surpassing noble metal OER catalysts including RuO2, IrO2, and superior to nickel phosphides, layered nickel‐iron double hydroxides, and other NiFe‐based OER catalysts. X‐ray photoelectron spectroscopy (XPS) studies reveals that enhanced charge transfer from the foreign metal (Fe) to the host (Ni) to P atoms and a strong synergistic effect exist in the composite (Ni1‐xFex)12P5 electrocatalysts, thus rendering the as‐prepared (Ni1‐xFex)12P5 nanocrystalline compounds (NCs) with a Ni/Fe ratio of 0.51/0.49, the highest OER activity with a small onset potential of 125 mV, a low Tafel slope of 39 mV dec−1, and a low overpotential of 216 mV, to achieve 20 mA cm−2 in an alkaline medium electrolyte (1.0 M KOH).