bluuebunny/crossref_metadata_2025_split huggingface dataset:
Eigenvalues of −Δp − Δq Under Neumann Boundary Condition
Authors: Mihăilescu Mihai , Moroşanu Gheorghe 
Published: April 2016

AbstractThe eigenvalue problem −Δpu − Δqu = λ|u|q−2u with p ∊ (1,∞), q ∊ (2,∞), p ≠ q subject to the corresponding homogeneous Neumann boundary condition is investigated on a bounded open set with smooth boundary from ℝN with N ≥ 2. A careful analysis of this problem leads us to a complete description of the set of eigenvalues as being a precise interval (λ1, ∞) plus an isolated point λ = 0. This comprehensive result is strongly related to our framework, which is complementary to the well-known case p = q ≠ 2 for which a full description of the set of eigenvalues is still unavailable.
Following A Glittering Trail: Geo-Chemical and Petrographic Characterization of Micaceous Sherds Recovered from Dismal River Sites
Authors: Trabert Sarah , Eiselt Sunday , Hill David V. , Ferguson Jeffrey , Beck Margaret 
Published: April 2016

AbstractProtohistoric Ancestral Apache Dismal River groups (A.D. 1600–1750) participated in large exchange networks linking them to other peoples on the Plains and U.S. Southwest. Ceramic vessels made from micaceous materials appear at many Dismal River sites, and micaceous pottery recovered from the Central High Plains is typically seen as evidence for interaction with northern Rio Grande pueblos. However, few mineral or chemical characterization analyses have been conducted on these ceramics, and the term “micaceous” has been applied to a broad range of vessel types regardless of the form, size, or amount of mica in their pastes. Our recent analyses, including macroscopic evaluation combined with petrography and neutron activation analyses (NAA), indicate that only a small subset of Dismal River sherds are derived from New Mexico clays. The rest were likely manufactured using materials from Colorado and Wyoming. Seasonal mobility patterns may have given Dismal River potters the opportunity to collect mica raw materials as they traveled between the Central Plains and Front Range, and this has implications for the importance of internal Plains social networks during the Protohistoric and Historic periods.
Apport démographique de l’immigration étrangère en France depuis 1960
Authors: Tribalat Michèle 
Published: April 2016

Les discours sur les besoins d’immigration des pays occidentaux pour corriger les effets du vieillissement ne se sont pas toujours embarrassés de quantifier l’efficacité de ce remède. Si des simulations prospectives ont été réalisées, on a moins souvent tenté de mesurer rétrospectivement quelle avait été l’ampleur de l’apport démographique de l’immigration étrangère et ses effets sur la natalité et la structure par âge de la population d’un pays. Cet article réitère en 2011 une estimation de l’apport démographique de l’immigration étrangère en France, après celle réalisée en 1999, pour donner une idée de l’impact démographique des flux d’immigration étrangère qui se sont produits depuis 1960, par vague décennale d’immigration. Cet apport, tout en étant très important — 9,7 millions, soit l’équivalent de la croissance démographique de la France sur un peu plus de trente ans — n’a que très modérément rajeuni la pyramide des âges, sans avoir vraiment d’impact sur le rapport de soutien réel en raison des taux d’emploi encore trop faibles en France et encore plus faibles dans la population apportée par l’immigration. L’impact sur la démographie française a été avant tout quantitatif : il a fait s’accroître la population.
Réflexions sur l’évolution du discours démolinguistique de Jacques Henripin
Authors: Termote Marc 
Published: April 2016

Cet article traite de la contribution de Jacques Henripin à l’étude des groupes linguistiques au Québec et au Canada. Les travaux de ce dernier en matière démolinguistique peuvent être répartis en trois périodes. Après avoir manifesté, au cours des années 1960 et 1970, sa préoccupation quant à la pérennité du groupe francophone au Québec, il a par la suite soutenu que l’avenir de ce groupe était assuré à long terme. Ses derniers écrits témoignent cependant d’un retour à une vision plutôt « pessimiste » de l’évolution future du poids démographique des francophones au Québec.
Vivre et travailler plus longtemps au Canada : la réalité des baby-boomers
Authors: Carrière Yves , Légaré Jacques , Purenne Jonathan 
Published: April 2016

Le financement des régimes publics de retraite est au coeur des préoccupations reliées au vieillissement démographique. Confrontés à cette problématique, plusieurs pays ont d’ailleurs relevé l’âge ouvrant droit à une pleine rente de retraite. Toutefois, on note un report relativement important de l’âge effectif de la retraite au Canada depuis le milieu des années 1990, sans modifications importantes apportées au système public de retraite. Cette tendance aura comme effet, entre autres, de pallier une épargne-retraite insuffisante chez plusieurs travailleurs ; problématique qu’avait déjà soulevée Jacques Henripin. Cette étude présente d’abord certaines tendances qui pourraient faire en sorte que ce report se poursuive chez les cohortes du baby-boom. La deuxième partie montre qu’une projection de la durée de vie en emploi à 50 ans, avec l’hypothèse de taux de retraite volontaire constants à leur niveau observé en 2011, conduit à une augmentation plus rapide de la durée anticipée de vie en emploi à 50 ans que celle prévue pour l’espérance de vie au même âge. L’effet de la retraite involontaire pourrait toutefois nuancer cette tendance, surtout chez les femmes. La discussion soulève, dans un tel contexte, certains enjeux importants reliés à la nécessité ou non de relever l’âge ouvrant droit à une pleine rente de retraite, qui est fixé à 65 depuis la fin des années 1960.
Enhancement of performance of AlGaN/GaN high-electron-mobility transistors by transfer from sapphire to a copper plate
Authors: Hiroki Masanobu , Kumakura Kazuhide , Yamamoto Hideki 
Published: April 2016

Abstract
We transferred AlGaN/GaN high-electron-mobility transistors (HEMTs) from a sapphire substrate to a copper plate using the hexagonal boron nitride epitaxial lift-off technique. After transfer, the negative slope in the drain current I
d decreased owing to the suppression of the self-heating effect. The significant increase in I
d and the negative shift of threshold voltage indicate an increase in two-dimensional electron gas (2DEG) density. The increase in 2DEG density is at least partially caused by the reduction in compressive stress in the GaN layer after the transfer, which is revealed from the E
2 peak shifts of −1.3 cm−1 in Raman spectroscopy measurements. We also estimated the temperature in the active region of HEMTs by micro-Raman spectroscopy. For the transferred HEMT, the temperature at the gate edge on the drain side was 100 °C at a power dissipation of 0.9 W. In contrast, the temperature reached 240 °C at a power dissipation of only 0.7 W for the HEMT on the sapphire substrate. This indicates that the transfer technique can enhance the performance of AlGaN/GaN HEMTs.
Growth and physiological responses of submerged plantVallisneria natansto water column ammonia nitrogen and sediment copper
Authors: Zhu Zhengjie , Song Siyuan , Li Pengshan , Jeelani Nasreen , Wang Penghe , Yuan Hezhong , Zhang Jinghan , An Shuqing , Leng Xin 
Published: April 2016

Background.The decline of submerged plant populations due to high heavy metal (e.g., Cu) levels in sediments and ammonia nitrogen (ammonia-N) accumulation in the freshwater column has become a significant global problem. Previous studies have evaluated the effect of ammonia-N on submerged macrophytes, but few have focused on the influence of sediment Cu on submerged macrophytes and their combined effects.Methods.In this paper, we selected three levels of ammonia-N (0, 3, and 6 mg L−1) and sediment Cu (25.75 ± 6.02 as the control, 125.75 ± 6.02, and 225.75 ± 6.02 mg kg−1), to investigate the influence of sediment Cu and ammonia-N on submergedVallisneria natans. We measured the relative growth rate (RGR), above- and below- ground biomass, chlorophyll, non-protein thiol (NP-SH), and free proline.Results and Discussion.The below-ground biomass ofV. natansdecreased with increasing Cu sediment levels, suggesting that excessive sediment Cu can result in significant damage to the root ofV. natans. Similarly, the above-ground biomass significantly decreased with increasing ammonia-N concentrations, indicating that excessive water ammonia-N can cause significant toxicity to the leaf ofV. natans. In addition, high ammonia-N levels place a greater stress on submerged plants than sediment Cu, which is indicated by the decline of RGR and chlorophyll, and the increase of (NP-SH) and free proline. Furthermore, high sediment Cu causes ammonia-N to impose greater injury on submerged plants, and higher sediment Cu levels ($\mathrm{Cu}\geq 125.75$ mg kg−1) led to the tolerant values of ammonia-N forV. natansdecreasing from 6 to 3 mg L−1. This study suggests that high sediment Cu restricts the growth of plants and intensifies ammonia-N damage toV. natans.
Elastographic Strain Index in the Evaluation of Focal Lesions Detected With Transrectal Sonography of the Prostate Gland
Authors: Hwang Sung Il , Lee Hak Jong , Lee Sang Eun , Hong Sung Kyu , Byun Seok-Soo , Choe Gheeyoung 
Published: April 2016

ObjectivesThe purpose of this study was to evaluate the value of elastography in evaluating focal lesions detected by transrectal sonography and to suggest a reference strain index.MethodsSixty‐nine patients with focal lesions on transrectal sonography were referred to our department for prostate biopsy. Focal lesions were classified as either highly or less suspicious lesions by our criteria. A strain index from elastography was calculated for the focal lesions. Systematic 12‐core randomized biopsies plus 2 targeted biopsies were performed. The mean strain indices for malignant and benign focal lesions were compared, and a cutoff strain index was attained to maximize the sensitivity and specificity for prostate cancer. Strain indices were correlated with Gleason scores.ResultsThe mean strain index ± SD for malignant focal lesions (3.26 ± 1.77) was significantly higher than that for benign focal lesions (2.16 ± 1.52; P = .008). The sensitivity, specificity, and area under the receiver operating characteristic curve for diagnosing cancer were 66.7%, 71.1%, and 0.701, respectively, at a strain index cutoff value of greater than 2.4. The strain index showed a moderate linear correlation with the Gleason score (r = 0.441; P = .013).ConclusionsAny focal lesion on transrectal sonography with a strain index of greater than 2.4 is at risk for prostate cancer.
Sonographic Detection of Accessory Adrenal Tissue in Neonates
Authors: Ben-Mordechay Daniel , Ben-Shlush Aviva , Raviv-Zilka Lisa , Jacobson Jeffrey M. , Soudack Michalle 
Published: April 2016

ObjectivesThe purpose of this study was to describe the incidence and appearance of accessory adrenal tissue in neonates, as diagnosed by high‐resolution sonography, and increase the awareness of this entity.MethodsWe examined the adrenal glands in 153 neonates referred for renal and urinary tract sonography at our institution between January 2014 and January 2015. All kidneys and adrenal glands, except for ectopic kidneys, were scanned with the neonate prone and a linear array transducer with frequency of 11 or 14 MHz.ResultsIn 9 neonates (5.9%), sonography showed a round, well‐defined structure adjacent to the adrenal gland with a hyperechoic center and hypoechoic periphery, similar to the echogenicity of the normal adrenal medulla and cortex, respectively. The largest diameter of the structure measured 2.9 to 4.5 mm. On follow‐up studies, which were available for 7 neonates, the structure was not evident, and the suprarenal area was normal.ConclusionsAccessory adrenal tissue can be identified in the suprarenal area in neonates with high‐resolution sonography. Radiologists and sonographers caring for neonates should be aware of this finding and not confuse it with disease.
The influence of obliquity in the early Holocene Asian summer monsoon
Authors: Wu Chi‐Hua , Lee Shih‐Yu , Chiang John C. H. , Hsu Huang‐Hsiung 
Published: April 2016

AbstractThe early Holocene climatic optimum is associated with perihelion precession and high obliquity, though most studies emphasize the former over the latter. Asian monsoon proxy records only decisively show the precessional impact. To explore the obliquity effect, four climate simulations are conducted by fixing orbital parameters of present‐day (0K), early Holocene (11K), the lowest obliquity (31K), and 11K's precession and eccentricity with 31K's obliquity (11Kp31Ko). We show that high obliquity significantly augments the precessional impact by shifting the Asian monsoon farther north than present. By contrast, the present‐day monsoon seasonality can still be identified in the simulations with low obliquity. We argue that the upper tropospheric (South Asian) and lower tropospheric (North Pacific) high‐pressure systems are affected by the subtropical atmospheric heating changes responding to obliquity. As a consequence, associated with the changes in meridional gradients of geopotential height and temperature made by the heating, midlatitude transient eddies and monsoon‐midlatitude interactions are modulated.
Borderlands
Authors: Segura Denise A. , Zavella Patricia 
Published: April 2016

Borderlands theory offers new ways of exploring relationships of power and domination, resistance and agency among women and men hitherto cast as marginalized others. One of the most influential borderland theorists, Gloria Anzaldúa argues that borderlands have multiple meanings. Our review of key theoretical and methodological characterization of borderlands identifies a strong emphasis on transnational social formations, how migrants engage in economic, political, or sociocultural activities that transcend national borders and “deterritorialize,” or span, international boundaries. Their discussion contextualizes Mexican and Chicana women's experiences as forms of adaptation and resistance to linguistic and cultural terrorism. Borderlands provide fertile ground from which individual and collective action arises which leads us to consider the transnational nature of borderlands that emphasizes coalitions with other women across the US–Mexico geopolitical border.
Borderlands theory makes gender and gender oppression central in studies of migration and globalization. By exploring multiple sites of gendered control and contestation, borderlands research reveals the multifaceted representations, experiences, and identities that women create within the context of globalization and transnational migration. Within these structural and socially violent discourses, women continually challenge confining notions of citizenship and strive to develop resilience and create community within and across national borders.
Joint effects of genetic variants and residential proximity to pesticide applications on hypospadias risk
Authors: Carmichael Suzan L. , Yang Wei , Ma Chen , Roberts Eric , Kegley Susan , English Paul , Lammer Edward J. , Witte John S. , Shaw Gary M. 
Published: April 2016

BackgroundWe examined risks associated with joint exposure of gene variants and pesticides.MethodsAnalyses included 189 cases and 390 male controls born from 1991 to 2003 in California's San Joaquin Valley. We used logistic regression to examine risks associated with joint exposures of gene variants and pesticides that our previous work identified as associated with hypospadias. Genetic variables were based on variants in DGKK, genes involved in sex steroid synthesis/metabolism, and genes involved in genital tubercle development. Pesticide exposure was based on residential proximity to commercial agricultural pesticide applications.ResultsOdds ratios (ORs) were highest among babies with joint exposures, who had two‐ to fourfold increased risks; for example, the OR was 3.7 (95% confidence interval [CI], 0.8–16.5) among subjects with the risk‐associated DGKK haplotype and pesticide exposure; OR, 1.5 (95% CI, 0.7–3.1) among subjects with the haplotype and no pesticide exposure; and OR, 0.9 (95% CI, 0.5–1.6) among subjects without the haplotype but with pesticide exposure, relative to subjects with neither. However, results did not provide statistical evidence that these risks were significantly greater than expected on an additive scale, relative to risks associated with one exposure at a time.ConclusionWe observed elevated risks associated with joint exposures to selected pesticides and genetic variants but no statistical evidence for interaction. Birth Defects Research (Part A) 106:653–658, 2016. © 2016 Wiley Periodicals, Inc.
A novel automated course generation system embedded in the online lecturing platform for higher education
Authors: Osamnia Mohamed , Okada Hitoshi , Berena Arjulie J. , Ueno Haruki , Chunwijitra Sila 
Published: April 2016

ABSTRACTThis study proposes a novel automated course generation system embedded in an online lecturing platform to create electronic course content from online lectures for higher education. The purpose of the system is to make the e‐content development faster by synchronizing the lecturer video stream and the presentation slide, based on a series of events in real‐time, automatically. The system detects events during the online lecture, such as slide changing, cursor positioning and video quality changing, and links them to the exact position of the recorded video stream to appear as it was in the real presentation. The system implements an authoring algorithm, namely the Course Generation (CG) algorithm which allows fast and fully automatic authoring process. Furthermore, the created contents are integrated into a web‐based learning environment, which is an important step on the long way to making learning more time and space independent as a concept of Internet of Everything (IoE) in education. A practical usage of the system is also presented, which demonstrated its usefulness and effectiveness in developing e‐contents in higher education. © 2016 Wiley Periodicals, Inc. Comput Appl Eng Educ 24:586–598, 2016; View this article online at wileyonlinelibrary.com/journal/cae; DOI 10.1002/cae.21734
Community Identity Increases Urban Residents' In‐group Emergency Helping Intention
Authors: Yang Zhixu , Xin Ziqiang 
Published: April 2016

AbstractThe current study examined how time pressure and community identity affected urban residents' in‐group emergency helping intention with a sample of 88 Chinese urban residents from a common community. Firstly, we instructed participants to fill out the Community Identity Scale. Following this, we set a hypothesized scenario, in which they met a fainted person in community when they left the community either in a hurry or not, to measure helping intention. It was found that time pressure had little impact on urban residents' in‐group helping intention, whereas community identity increased in‐group helping intention. Moreover, emotional identity but not functional identity positively predicted in‐group helping intention. These findings and their implications for community psychology were discussed. Copyright © 2016 John Wiley & Sons, Ltd.
Uncovering Intramolecular π‐Type Hydrogen Bonds in Solution by NMR Spectroscopy and DFT Calculations
Authors: Mastrorilli Piero , Gallo Vito , Todisco Stefano , Latronico Mario , Saielli Giacomo 
Published: April 2016

AbstractReaction between the phosphinito bridged diplatinum species [(PHCy2)Pt(μ‐PCy2){κ2P,O‐μ‐P(O)Cy2}Pt(PHCy2)](Pt–Pt) (1), and (trimethylsilyl)acetylene at 273 K affords the σ‐acetylide complex [(PHCy2)(η1‐Me3SiC≡C)Pt(μ‐PCy2)Pt(PHCy2){κP‐P(OH)Cy2}](Pt–Pt) (2) featuring an intramolecular π‐type hydrogen bond. Scalar and dipolar couplings involving the POH proton were detected by 2D NMR experiments. Relativistic DFT calculations of the geometry, relative energy, and NMR properties of model systems of 2 confirmed the structural assignment and allowed the energy of the π‐type hydrogen bond to be estimated (ca. 22 kJ mol−1).
ChemInform Abstract: STRUCTURE AND PROPERTIES OF LITHIUM SILICIDE (LI14SI6(LI2.33SI)), THE PURPLE PHASE IN THE LITHIUM‐SILICON SYSTEM
Authors: VON SCHNERING H. G. , NESPER R. , TEBBE K.‐F. , CURDA J. 
Published: April 2016

AbstractDie früher als "Li,Si" bezeichnete violette Phase ist nicht monoklin, sondern trigonal‐rhomboedrisch (RG Räm) und die Zusammensetzung ist Li,‐33 Si.
ChemInform Abstract: ON THE METASTABLE PHASE GOLD‐SILICON (AU4SI)
Authors: ELLNER M. , PREDEL B. 
Published: April 2016

AbstractDie zwischen Au82Si18 und Au80Si20 einphasige Titelphase wird durch rasches Abkühlen geschmolzener Au‐Si‐Legierungen auf Raumtemp. (splat cooling) erhalten.
ChemInform Abstract: ELECTROCHEMICAL REDUCTION OF SULFUR DIOXIDE ON INERT ELECTRODES IN ACETONITRILE SOLUTIONS
Authors: GERONOV Y. , MOSHTEV R. V. , PURESHEVA B. 
Published: April 2016

AbstractZum besseren Verständnis des Kathodenprozesses in primären Li/SO, ‐ Zellen wird die Reduktion von SO, an Pt‐ und glasigen C‐Elektroden in MeCN/O.1 M LiBr‐Lösungen chronopotentiometrisch und chronovoltamperometrisch in einem weiten SO,‐Konzentrationsbereich untersucht.
ChemInform Abstract: PREPARATION AND CRYSTAL STRUCTURE OF NONADECASULFUR BIS(HEXAFLUOROARSENATE) AND AN ESR AND ABSORPTION SPECTRAL STUDY OF SOLUTIONS CONTAINING THE NONADECASULFUR(2+) CATION AND RELATED SYSTEMS
Authors: BURNS R. C. , GILLESPIE R. J. , SAWYER J. F. 
Published: April 2016

AbstractDie früher als S16 (AsF6)2 formulierte Verbindung (aus AsFs und trockenem S in einer 2:1‐ Mischung von SO2 und SO2ClF bei 25°C, 3‐4 h) besitzt, wie Röntgenstrukturuntersuchungen zeigen, tatsächlich die Stöchiometrie S,9(AsF6 )2.
ChemInform Abstract: IMPROVED SYNTHESIS OF (I2+)(SB2F11‐) AND (BR2+)(SB3F16‐) AND MAGNETIC, SPECTROSCOPIC, AND SOME CHEMICAL PROPERTIES OF THE DIHALOGEN CATIONS DIIODINE(1+) AND DIBROMINE(1+)
Authors: WILSON W. W. , THOMPSON R. C. , AUBKE F. 
Published: April 2016

AbstractDie Oxidation von Br, und I, durch S,06F′, im Molverhältnis 2:1 und anschließende Solvolyse in überschüssigem SbFs stellen einen einfachen, direkten Weg zu den reinen Titelverbindungen dar (Ausb.‐Angaben in g).
ChemInform Abstract: OXOVANADATES WITH MIXED VALENCE. I. A NEW STRUCTURE TYPE FOR BARIUM OXOVANADATE (BAV10O15)
Authors: CHALES DE BEAULIEU D. , MUELLER‐BUSCHBAUM HK. + 
Published: April 2016

AbstractEin neuer Strukturtyp für die Verbindung BaV10O15, die durch Hochtemp.‐Reaktion A dargestellt wird.
ChemInform Abstract: PREPARATION AND MOLECULAR STRUCTURE OF TAH(P(C6H5)2)2((CH3)2PC2H4P(CH3)2)2, A METAL HYDRIDE OF THE TYPE MHL2(BIDENTATE PHOSPHINE)2N+ HAVING A PENTAGONAL‐BIPYRAMIDAL STRUCTURE
Authors: DOMAILLE P. J. , FOXMAN B. M. , MCNEESE T. J. , WREFORD S. S. 
Published: April 2016

AbstractDie 1:2‐molare Umsetzung von Dichloro‐bis‐[bis‐1,2 (dimethylphosphino)‐ethan]‐Ta mit K‐diphenylphosphid‐2 Dioxan in THF bei 0°C führt zu dem IR‐ und NMR‐spektroskopisch charakterisierten Titelkomplex (I).
ChemInform Abstract: COMPLETION OF KOERNER′S PROOF THAT THE HYDROGENS OF BENZENE ARE HOMOTOPIC. AN APPLICATION OF GROUP THEORY
Authors: MCBRIDE J. M. 
Published: April 2016

AbstractDer von Wilhelm Koerner bereits 1869 elegant geführte Beweis, daß die 6 Positionen des Benzolkerns ‐ bzw. die 6 A‐Atome ‐ äquivalent seien, wird hinsichtlich eines Fehlers, der für die Richtigkeit des Beweises unerheblich ist, korrigiert und gleichzeitig gruppentheoretisch bestätigt.
ChemInform Abstract: CRYSTAL STRUCTURE OF FERRICHROME AND A COMPARISON WITH THE STRUCTURE OF FERRICHROME A
Authors: VAN DER HELM D. , BAKER J. R. , ENG‐WILMOT D. L. , HOSSAIN M. B. , LOGHRY R. A. 
Published: April 2016

AbstractDas Fe(III)‐Ionophor Ferrichrom des Brandpilzes Ustilago sphaerogena wird aus Eisenkulturen isoliert und durch Anionenaustausch und Silicagel‐Chromatographie gereinigt.