bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mesurer le risque perçu à « jouer responsable »
Authors: Pin Anne-Claire , Picot-Coupey Karine , Droulers Olivier 
Published: October 2014

Objectifs : Le jeu responsable consiste en un ensemble de pratiques et de politiques visant à réduire le développement de la pratique excessive des jeux de hasard et d’argent. Cet article contribue à conceptualiser le risque perçu à adopter un comportement de jeu responsable. Il présente les trois premières étapes de développement d’une échelle permettant de le mesurer. Méthode : 22 entretiens semi-directifs auprès de joueurs dans un casino français ont été réalisés. Le corpus obtenu de 190 pages a fait l’objet d’une analyse de contenu manuelle conceptualisante. Puis, une enquête par questionnaire auprès de 134 joueurs a été menée, in situ, et les données traitées par une analyse factorielle exploratoire. Résultats : Le concept de risque perçu à adopter un comportement de jeu responsable est défini comme la perception subjective et incertaine des joueurs quant aux pertes potentielles liées à la perspective d’adopter un comportement de jeu responsable. L’analyse de contenu conceptualisante a fait émerger cinq dimensions constitutives du concept. L’étude quantitative exploratoire permet de valider une structure en cinq dimensions différente de celle initialement définie et qui conduit à la préciser : le risque perçu de vivre moins d’excitation, de moins se socialiser, de vaincre moins, de gagner moins d’argent et de moins se distraire. Conclusion : Les résultats montrent que les joueurs perçoivent un risque à adopter un comportement de jeu responsable. Ce comportement sanitaire s’oppose aux motivations de jeu et est perçu comme une alternative risquée au jeu excessif.
Relation au fournisseur : impératif de multicanalité et gestion des émotions
Authors: Siadou-Martin Béatrice , Pellat Ghislaine , Vidal David , Poujol Fanny 
Published: October 2014

Cette recherche s’intéresse aux effets des interactions (en face-à-face et virtuelles) sur les émotions et la satisfaction d’acheteurs en B-to-B. La place des émotions en B-to-B et l’impact des émotions positives sur la satisfaction globale envers le fournisseur sont confirmés. Plus spécifiquement, cette étude montre que si la fréquence des contacts n’a pas d’impact, la nature des contacts a un effet sur les émotions : les interactions en face-à-face génèrent des émotions positives alors que les interactions virtuelles génèrent des émotions négatives.
Pertinence de l'impertinence chrétienne dans l'ultramodernité contemporaine ? Un point de vue sociologique sur la condition chrétienne aujourd'hui
Authors: Willaime Jean-Paul 
Published: October 2014

L’étude sociologique des faits religieux doit pouvoir rendre compte de la singularité de son objet tout en gardant la perspective critique qui est la sienne. Après ce rappel, l’auteur reprend la question des rapports religion-modernité en expliquant pourquoi nous sommes aujourd’hui entrés dans une nouvelle phase de la modernité – qualifiée d’« ultramodernité » – qui représente une radicalisation de la sécularisation. Les idéaux séculiers sont eux-mêmes désenchantés et des logiques d’incertitude ont pris la place des certitudes modernistes. La société n’est plus seulement post-chrétienne, mais aussi post-séculière et la situation sociétale des religions s’en trouve profondément reconfigurée. Cette situation remet en cause l’excommunication séculière des religions dans le débat public. Attentif à la dynamique d’interpellation qui habite le christianisme en son cœur même et le rend libre à l’égard de toutes les modes, l’auteur montre que, dans un tel contexte, la non-conformité chrétienne par rapport aux valeurs dominantes du présent peut se révéler particulièrement pertinente. L’évocation du débat public sur le mariage de même sexe en France vient illustrer cette thèse de la pertinence de l’impertinence chrétienne dans l’ultramodernité contemporaine.
Synthesis of Poly(N-vinyl-2-pyrrolidone-co-methyl methacrylate) by Maghnite-H+ a Non-toxic Catalyst
Authors: Benadda Mohamed , Ferrahi Mohamed Issam , Belbachir Mohamed 
Published: October 2014

In the present work poly (N-vinyl-2-pyrrolidone-co-methyl methacrylate) copolymers were prepared successfully and cleanly by a one step process via cationic copolymerization of N-vinyl-2-pyrrolidone (NVP) with methyl methacrylate (MMA), in heterogeneous phase using “Maghnite-H+” (Mag-H+) as catalyst in bulk, Maghnite is a montmorillonite sheet silicate clay exchanged with protons to produce Maghnite-H+. Temperature is varied between 20 and 80 °C. The effects of reaction temperature, amount of Mag-H+ on the yield and the intrinsic viscosity (η) were investigated. A typical reaction product of poly (NVP-co- MMA) was analyzed by infra red spectroscopy (FTIR) and 1H-NMR, 13C-NMR spectroscopy as well as by viscosimetry. © 2014 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0)
Preparation and Characterization of Lithium Zirconium Silicate for CO2 Capture
Authors: Bhosale T. S. , Gaikwad A. G. 
Published: October 2014

The samples of lithium zirconium silicate were prepared by precipitation, template and sol-gel meth-ods. The samples were prepared with several mol ratios of Li:Zr:Si. The preparation of lithium zirco-nium silicate samples by precipitation method were carried out by using the lithium nitrate, zirconyl nitrate, zirconium(IV) oxypropoxide and tetramethylorthosilicate (TEOS) as precursors. The samples of lithium zirconium silicate were prepared by using cetyltrimethyl-ammonium bromide (C-TAB) and tetramethyl ammonium hydroxide (TMAOH) by template method. The samples of lithium zirconium silicate were characterized by XRD, TEM, SEM, 29Si-MAS NMR and FTIR. The surface area, alkalinity / acidity of the samples of lithium zirconium silicate were measured. The TGA analysis of lithium zirco-nium silicate samples was done. The CO2 captured by the samples of lithium zirconium silicate was es-timated. The captured CO2 by the samples of lithium zirconium silicate was found to be in the range 3.3 to 8.6 wt%. © 2014 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0)
Body Size Throughout Adult Life Influences Postmenopausal Breast Cancer Risk among Hispanic Women: The Breast Cancer Health Disparities Study
Authors: John Esther M. , Sangaramoorthy Meera , Hines Lisa M. , Stern Mariana C. , Baumgartner Kathy B. , Giuliano Anna R. , Wolff Roger K. , Slattery Martha L. 
Published: October 2014

AbstractBackground: Few studies have assessed the association of body size with postmenopausal breast cancer risk in Hispanic women. Findings are inconsistent and appear to contradict those reported for non-Hispanic white (NHW) women.Methods: We pooled interview and anthropometric data for 2,023 Hispanic and 2,384 NHW women from two U.S. population-based case–control studies. Using logistic regression analysis, we examined associations of overall and abdominal adiposity with risk of postmenopausal breast cancer defined by estrogen receptor (ER) and progesterone receptor (PR) status.Results: Weight gain was associated with increased risk of ER+PR+ breast cancer in Hispanics not currently using menopausal hormone therapy (HT), but only among those with a low young-adult body mass index (BMI). In the subset of Hispanics with data on genetic ancestry, the association with weight gain was limited to women with lower Indigenous American ancestry. Young-adult BMI was inversely associated with both ER+PR+ and ER−PR− breast cancers for both ethnicities combined, with similar, although nonsignificant, inverse trends in Hispanics and NHWs. Among all Hispanics, regardless of HT use, height was associated with risk of ER−PR− breast cancer and hip circumference with risk of breast cancer overall.Conclusions: Body size throughout adult life is associated with breast cancer risk among postmenopausal Hispanic women, as has been reported for NHW women. Associations were specific for breast cancer subtypes defined by hormone receptor status.Impact: Avoiding weight gain and maintaining a healthy weight are important strategies to reduce the risk of postmenopausal ER+PR+ breast cancer, the most common breast cancer subtype. Cancer Epidemiol Biomarkers Prev; 24(1); 128–37. ©2014 AACR.See related article by John et al., p. 138
Mars Express observations of high altitude planetary ion beams and their relation to the “energetic plume” loss channel
Authors: Liemohn Michael W. , Johnson Blake C. , Fränz Markus , Barabash Stas 
Published: October 2014

AbstractThis study presents observational evidence of high‐energy (ions >2 keV) beams of planetary ions above Mars' induced magnetospheric boundary (IMB) and relates them with the energetic plume loss channel calculated from numerical models. A systematic search of the Mars Express (MEX) ion data using an orbit filtering criteria is described, using magnetometer data from Mars Global Surveyor (MGS) to determine the solar wind motional electric field (Esw) direction. Two levels of statistical survey are presented, one focused on times when the MEX orbit was directly in line with the Esw and another for all angles between the MEX location and the Esw. For the first study, within the 3 year overlap of MGS and MEX, nine brief intervals were found with clear and unambiguous high‐energy O+ observations consistent with the energetic plume loss channel. The second survey used a point‐by‐point determination of MEX relative to the E‐field and contained many thousands of 192 s measurements. This study yielded only a weak indication for an Esw‐aligned plume. Furthermore, the y‐z components of the weighted average velocities in the bins of this y‐z spatial domain survey do not systematically point in the Esw direction. The first survey implies the existence of this plume and shows that its characteristics are seemingly consistent with the expected energy and flight direction from numerical studies; the second study softens the finding and demonstrates that there are many planetary ions beyond the IMB moving in unexpected directions. Several possible explanations for this discrepancy are discussed.
Probing Jovian decametric emission with the long wavelength array station 1
Authors: Clarke T. E. , Higgins C. A. , Skarda Jinhie , Imai Kazumasa , Imai Masafumi , Reyes Francisco , Thieman Jim , Jaeger Ted , Schmitt Henrique , Dalal Nagini Paravastu , Dowell Jayce , Ellingson S. W. , Hicks Brian , Schinzel Frank , Taylor G. B. 
Published: October 2014

AbstractNew observations of Jupiter's decametric radio emissions have been made with the Long Wavelength Array Station 1 (LWA1), which is capable of making high‐quality observations as low as 11 MHz. Full Stokes parameters were determined for bandwidths of 16 MHz. Here we present the first LWA1 results for the study of six Io‐related events at temporal resolutions as fine as 0.25 ms. LWA1 data show excellent spectral detail in Jovian DAM such as simultaneous left‐hand circular (LHC) and right‐hand circular (RHC) polarized Io‐related arcs and source envelopes, modulation lane features, S‐burst structures, narrow band N events, and interactions between S bursts and N events. The sensitivity of the LWA1 combined with the low‐radio‐frequency interference environment allow us to trace the start of the LHC Io‐C source region to much earlier CMLIII than typically found in the literature. We find that the Io‐C starts as early as CMLIII = 230° at frequencies near 11 MHz. This early start of the Io‐C emission may be valuable for refining models of the emission mechanism. We also detect modulation lane structures that appear continuous across LHC and RHC emissions, suggesting that both polarizations may originate from the same hemisphere of Jupiter. We present a study of rare S bursts detected during an Io‐D event and show that drift rates are consistent with those from other Io‐related sources. Finally, S‐N burst events are seen in high spectral and temporal resolution and our data strongly support the cospatial origins of these events.
Observations and modeling of magnetic flux tube refilling of the plasmasphere at geosynchronous orbit
Authors: Denton M. H. , Borovsky J. E. 
Published: October 2014

AbstractThe outer plasmasphere is eroded when the strength of the convection electric field increases. Following a return of lower levels of convection, the outer plasmasphere “refills” from the ionosphere. In situ observations of the cold (~1 eV) ion number density from geosynchronous orbit indicate that within ~48 h after plasmaspheric erosion events, the number density may return to a level of ~100 cm−3, consistent with previously reported values. Current theoretical estimates of refilling rates at geosynchronous orbit are inconsistent with such rapid refilling. In order to shed light on this issue, a theoretical investigation is carried out to determine the major factors governing the refilling process. While theoretical estimates of the refilling rate reported here still fall below the observed levels by at least a factor of 2, the results of this study indicate that the morphology of the neutral atmosphere, particularly the neutral atmosphere number density, is critical in controlling the rate of refilling at geosynchronous orbit. The strength of vertical E × B drifts and horizontal neutral winds is found to play only a minor role.
Magnetic fingerprint of southern Portuguese speleothems and implications for paleomagnetism and environmental magnetism
Authors: Font Eric , Veiga‐Pires Cristina , Pozo Manuel , Carvallo Claire , de Siqueira Neto António Carlos , Camps Pierre , Fabre Sébastien , Mirão José 
Published: October 2014

AbstractEnvironmental magnetism of speleothems is still in its early stage of development. Here we report on our investigation of the environmental and paleomagnetic information that has been recorded in speleothems, and what are the factors that control its preservation and reliability. To address these issues, we used a multidisciplinary approach, including rock magnetism, petrography, scanning electron microscopy, stable carbon and oxygen isotope compositions, and major and trace element concentrations. We applied this to a set of samples from different stages of speleothem evolution: present‐day dripwater (glass plates), a weathered stalactite, a fresh stalagmite, cave sediments, and terra rossa soils. These samples come from the Penico and Excentricas caves, located in two distinct aquifers of the Algarve region, South Portugal. Our results show that the main magnetic carriers of the speleothems under study are primary (detrital) and consist of maghemite (and magnetite?). Similarities in coercivity and temperature dependence of the studied set of samples suggest that iron oxides are inherited from the terra rossa soils that cap the cave and were transported to the speleothems by dripwater. Hence, they represent a regional environmental signature. Interestingly, a stable and probably detrital remanent magnetization could be isolated in the fresh stalagmite, whereas the weathered stalactite yielded chaotic magnetic directions and very low remanent intensities. We propose that these low intensities can be the result from (i) different remanence acquisition mechanisms between stalagmite and stalactite and/or (ii) iron dissolution by fungal activity. We also suggest that magnetic properties and color and the content in detrital elements in the fresh speleothem inform about environmental processes acting on the interface of rock (soil)‐atmosphere, while oxygen isotope composition and alkaline‐earth element concentrations inform about calcite‐water interaction processes. These results provide a better understanding of how environmental information is recorded in speleothems and what the factors are that control the reliability of the paleomagnetic and paleo‐environmental signal.
Organic aerosol emission ratios from the laboratory combustion of biomass fuels
Authors: Jolleys Matthew D. , Coe Hugh , McFiggans Gordon , McMeeking Gavin R. , Lee Taehyoung , Kreidenweis Sonia M. , Collett Jeffrey L. , Sullivan Amy P. 
Published: October 2014

AbstractOrganic aerosol (OA) emission ratios (ER) have been characterized for 67 burns during the second Fire Laboratory at Missoula Experiment. These fires involved 19 different species representing 6 major fuels, each of which forms an important contribution to the U.S. biomass burning inventory. Average normalized ΔOA/ΔCO ratios show a high degree of variability, both between and within different fuel types and species, typically exceeding differen‐ces between separate plumes in ambient measurements. This variability is strongly influenced by highly contrasting ΔOA levels between burns and the increased partitioning of semivolatile organic compounds to the particle phase at high ΔOA concentrations. No correlation across all fires was observed between ΔOA/ΔCO and modified combustion efficiency (MCE), which acts as an indicator of the proportional contributions of flaming and smoldering combustion phases throughout each burn. However, a negative correlation exists with MCE for some coniferous species, most notably Douglas fir, for which there is also an influence from fuel moisture content. Changes in fire efficiency were also shown to dramatically alter emissions for fires with very similar initial conditions. Although the relationship with MCE is variable between species, there is greater consistency with the level of oxygenation in OA. The ratio of the m/z 44 fragment to total OA mass concentration (f44) as measured by aerosol mass spectrometer provides an indication of oxygenation as influenced by combustion processes at source, with ΔOA/ΔCO decreasing with increasing f44 for all fuel types. Inconsistencies in the magnitude of the effects associated with each potential influence on ΔOA/ΔCO emphasize the lack of a single dominant control on fire emissions, and a dependency on both fuel properties and combustion conditions.
Spatiotemporal change of diurnal temperature range and its relationship with sunshine duration and precipitation in China
Authors: Shen Xiangjin , Liu Binhui , Li Guangdi , Wu Zhengfang , Jin Yinghua , Yu Pujia , Zhou Daowei 
Published: October 2014

AbstractWe examined the spatiotemporal variation in diurnal temperature range (DTR) and discussed the reasons for the changes of DTR in China based on data from 479 weather stations from 1962 to 2011. Results showed that DTR decreased rapidly (0.291°C/decade) from 1962 to 1989 due to slightly decreased Tmax and significantly increased Tmin, but the decrease in DTR has stopped since 1990 as Tmax and Tmin kept pace with each other. During 1990–2011, DTR remained trendless, with slight increase in the 1990s and slight decrease after 2000. During the whole study period from 1962 to 2011, DTR decreased at a rate of 0.157°C/decade nationally. Spatially, decreases in DTR were greatest in Northeast China and lowest in Southwest China with a transect running from northeast to southwest showing the decreasing trends change from high to low. Seasonally, DTR decreases were greatest in winter and lowest in summer, and the magnitudes of decrease reduced from the north to south of China. The changes in DTR were closely correlated with changes in sunshine duration (SD) in China except the Tibetan Plateau, suggesting that SD decrease is an important contributor to the decrease of DTR through its influence on Tmax. In addition to the contribution of SD decrease, the increasing of precipitation played an important role in DTR decrease in Northwest China, the most arid region of China. It appeared that changes of cloud cover (CC) were not the reasons for DTR changes in the past 50 years as CC has decreased during the study period.
Synthesis of and Specific Antibody Generation for Glycopeptides with Arginine N‐GlcNAcylation
Authors: Pan Man , Li Shan , Li Xiang , Shao Feng , Liu Lei , Hu Hong‐Gang 
Published: October 2014

AbstractAs a unique and unappreciated protein posttranslational modification, arginine N‐glycosylation was recently discovered to play an important role in the process that bacteria counteract host defenses. To provide chemical tools for further proteomic and biochemical studies on arginine N‐glycosylation, we report the first general strategy for a rapid and cost‐effective synthesis of glycopeptides carrying single or multiple arginine N‐GlcNAcyl groups. These glycopeptides were successfully utilized to generate the first antibodies that can specifically recognize arginine N‐GlcNAcylated peptides or proteins in a sequence‐independent manner.
Mass Spectrometry Quantifies Protein Interactions—From Molecular Chaperones to Membrane Porins
Authors: Hopper Jonathan T. S. , Robinson Carol V. 
Published: October 2014

AbstractProteins possess an intimate relationship between their structure and function, with folded protein structures generating recognition motifs for the binding of ligands and other proteins. Mass spectrometry (MS) can provide information on a number of levels of protein structure, from the primary amino acid sequence to its three‐dimensional fold and quaternary interactions. Given that MS is a gas‐phase technique, with its foundations in analytical chemistry, it is perhaps counter‐intuitive to use it to study the structure and non‐covalent interactions of proteins that form in solution. Herein we show, however, that MS can go beyond simply preserving protein interactions in the gas phase by providing new insight into dynamic interaction networks, dissociation mechanisms, and the cooperativity of ligand binding. We consider potential pitfalls in data interpretation and place particular emphasis on recent studies that revealed quantitative information about dynamic protein interactions, in both soluble and membrane‐embedded assemblies.
One‐Pot Synthesis of Tri‐ and Tetrasubstituted Pyridines by Sequential Ring‐Opening/Cyclization/Oxidation of N‐Arylmethyl 3‐Aziridinylpropiolate Esters
Authors: Yoshida Masahiro , Mizuguchi Tomotaka , Namba Kosuke 
Published: October 2014

AbstractA novel strategy for the one‐pot synthesis of substituted pyridines from N‐arylmethyl 3‐aziridinylpropiolate esters is described. The method employs a three‐step procedure including the formation of allenyl imines, phosphine‐catalyzed cyclization, and subsequent oxidation of the dihydropyridines. Depending on the reaction conditions of the final oxidation step, tri‐ and tetrasubstituted pyridines can be selectively produced.
Stereospecific and Stereoselective Rhodium(I)‐Catalyzed Intramolecular [2+2+2] Cycloaddition of Allene‐Ene‐Ynes: Construction of Bicyclo[4.1.0]heptenes
Authors: Ohta Yuu , Yasuda Shigeo , Yokogawa Yuka , Kurokawa Kei , Mukai Chisato 
Published: October 2014

AbstractTreatment of the allene‐ene‐yne substrates with [{RhCl(CO)2}2] effected the intramolecular [2+2+2]‐type ring‐closing reaction to produce various of tri‐ and tetracyclic derivatives containing a cyclopropane ring. The reaction is highly stereoselective as well as stereospecific with good to excellent yields.
Copper‐Catalyzed Radical Carbooxygenation: Alkylation and Alkoxylation of Styrenes
Authors: Liao Zhixiong , Yi Hong , Li Zheng , Fan Chao , Zhang Xu , Liu Jie , Deng Zixin , Lei Aiwen 
Published: October 2014

AbstractA simple copper‐catalyzed direct radical carbooxygenation of styrenes is developed utilizing alkyl bromides as radical resources. This catalytic radical difunctionalization accomplishes both alkylation and alkoxylation of styrenes in one pot. A broad range of styrenes and alcohols are well tolerated in this transformation. The EPR experiment shows that alkyl halides could oxidize Cu(I) to Cu(II) in this transformation.