bluuebunny/crossref_metadata_2025_split huggingface dataset:
Nematic and superconducting order in a three‐band model for the iron superconductors
Authors: Honerkamp Carsten 
Published: September 2016

AbstractWe investigate collective ordering tendencies in a three‐band model for iron superconductors, driven by intra‐ and inter‐orbital local interactions, by means of a renormalization group (RG) approach. Our study extends earlier fundamental RG studies by Chubukov et al. [Phys. Rev. B 78, 134512 (2008)] by allowing the flowing interactions to be orbital‐dependent. While for small inter‐orbital repulsion , we retrieve the previous picture of a constructive interplay between antiferromagnetic spin‐density wave ordering and sign‐changing s‐wave pairing, for larger , ’“nematic” orbital ordering becomes strong and changes the groundstate of the undoped or slightly doped system qualitatively. At the transition between the two regimes, both sign‐changing pairing and sign‐changing ‐nematic are most pronounced. Our results suggest a much richer range of possibilities for the ground states of iron superconductors and related materials and shows how nematic order can act as an additional source for unconventional Cooper pairing. For the strongly electron‐doped case without hole pockets we also find a novel pairing that has no sign‐change as function of the wavevector but changes sign between the and the orbitals.
Isotopic effects of different preservation methods on scales of olive ridley sea turtles (Lepidochelys olivacea) from the Mexican Central Pacific
Authors: Carpena‐Catoira Carla , Ortega‐Ortiz Christian D. , Elorriaga‐Verplancken Fernando R. 
Published: September 2016

RationaleStable isotope analysis can be used to obtain information on olive ridley sea turtles in the Mexican Central Pacific (MCP). Tissue samples such as scale, muscle, and blood are usually not analyzed immediately and are preserved in different substances such as ethanol, formalin, sodium chloride, the ideal being liquid nitrogen. Due to logistical reasons, the latter preservation method cannot always be used. The objective of the present study was to evaluate the efficiency of dimethyl sulfoxide (DMSO) as a preservation agent for later stable isotope analysis.MethodsForty‐eight paired scale samples of olive ridley were collected in MCP waters and preserved in DMSO and liquid nitrogen. We determined their δ13C and δ15N values using a Carlo Erba 1108 elemental analyzer coupled to a ThermoFinnigan Delta Plus XP isotope ratio mass spectrometer (precision ±0.2‰ for each stable isotope). The mean isotopic ratios of each preservation method were compared.ResultsSignificant differences were observed between the isotopic ratios of samples in the two preservatives. Samples preserved in DMSO resulted in more negative isotopic values than those in liquid nitrogen, and a correction factor was calculated. The correction factors were 2.1‰ for δ13C values and 0.8‰ for δ15N values.ConclusionsDMSO is not equivalent to liquid nitrogen for the preservation of olive ridley scales to be used for isotopic analysis. If DMSO has to be used for logistical reasons a replicate sample should also be collected to be able to estimate a correction factor. Copyright © 2016 John Wiley & Sons, Ltd.
Time‐varying group formation analysis and design for general linear multi‐agent systems with directed topologies
Authors: Dong Xiwang , Li Qingdong , Zhao Qilun , Ren Zhang 
Published: September 2016

SummaryTime‐varying group formation control problems for general linear multi‐agent systems with directed topologies are studied. Different from the traditional complete formation, where only one formation is realized by the multi‐agent system, in the group formation, there could be multiple time‐varying sub‐formations. Firstly, a time‐varying group formation protocol is constructed by local neighboring relative information. Then nonsingular transformations are applied to the closed‐loop multi‐agent systems. Sufficient conditions for the multi‐agent systems to achieve time‐varying group formation are further presented together with the time‐varying group formation feasibility constraints. Explicit expressions of the subgroup formation reference functions are derived to describe the macroscopic movement of the time‐varying subgroup formations. Moreover, an approach to design the time‐varying group formation protocol is proposed by solving an algebraic Riccati equation. Finally, a numerical example with three subgroups is provided to demonstrate the effectiveness of the obtained theoretical results. Copyright © 2016 John Wiley & Sons, Ltd.
Language Teacher Identity and the Domestication of Dissent: An Exploratory Account
Authors: Morgan Brian 
Published: September 2016

In this article, the notion of dissent refers to a more critical, ideological orientation to advocacy for and by TESOL professionals. The notion of domestication refers to identity‐forming practices in the knowledge base of language teacher education (LTE) and in professional certification processes that potentially displace this critical orientation. After a discussion of field‐internal examples (e.g., epistemic dependencies, Kumaravadivelu, 2012; linguistics applied, Widdowson, 1980; language objectification, Reagan, 2004), the article takes up a specific context of domestication: TESL Ontario's accreditation processes and requirements for the certification of adult instructors of ESL (English as a second language). Examining organizational documents and membership survey data, the article suggests that the framing of advocacy is inadequate for the conditions of underemployment and overqualification in this jurisdiction. The article then suggests an alternative for fostering critical advocacy skills in preservice programming: an Issues Analysis Project, in which teachers identify a “gap” in the field (i.e., pedagogical, ideological) and design a blueprint for action (e.g., advocacy letter, policy statement, workshop, curricular innovation) that potentially offers a resolution. The conclusions take up the broader implications of the study for language teacher identity negotiation as well as the TESOL organization's efforts in promoting advocacy amongst its membership.
Educational data science in massive open online courses
Authors: Romero Cristóbal , Ventura Sebastián 
Published: September 2016

The current massive open online course (MOOC) euphoria is revolutionizing online education. Despite its expediency, there is considerable skepticism over various concerns. In order to resolve some of these problems, educational data science (EDS) has been used with success.MOOCsprovide a wealth of information about the way in which a large number of learners interact with educational platforms and engage with the courses offered. This extensive amount of data provided byMOOCsconcerning students' usage information is a gold mine forEDS. This paper aims to provide the reader with a complete and comprehensive review of the existing literature that helps us understand the application ofEDSinMOOCs. The main works in this area are described and grouped by task or issue to be solved, along with the techniques used.WIREs Data Mining Knowl Discov2017, 7:e1187. doi: 10.1002/widm.1187This article is categorized under:Application Areas > Education and Learning
Trophic niche differences between coexisting omnivores silver carp and bighead carp in a pelagic food web
Authors: Yao Xiaoyan , Huang Gentian , Xie Ping , Xu Jun 
Published: September 2016

AbstractUnderstanding how omnivorous consumers are affected by their resources and how this is expressed through the food chain is a fundamental issue in ecology. We used stable isotope analysis of archived scales of two pelagic single‐chain omnivorous fish species, bighead carp (Hypophthalmichthys nobilis) and silver carp (H. molitrix), to reconstruct historical trophic interactions patterns along a gradient of resources. We found that, although bighead carp and silver carp utilize the similar resources from the pelagic food chain, they can coexist and persist not only by regulating their trophic position and trophic dissimilarity, but also by regulating trophic niche width. Omnivorous fish often exhibit flexible foraging strategies, which is closely related to the availability of ecologic context. We found a positive relationship between trophic dissimilarity and zooplankton density, which may indicate that the competitive interactions induce strong top‐down effects on zooplankton, and/or that high zooplankton availability release the between‐population trophic interaction through bottom‐up effect. The trophic niche width of bighead carp was positively related with zooplankton availability, probably reflecting that the niche of an omnivore at a higher trophic position is more sensitive to high quality resources. Our results indicate how different aspects of the trophic partitioning of coexisting omnivores may be regulated by different ecological contexts. These alternatives are not mutually exclusive and further theoretical work should include both these mechanisms to re‐evaluate the effects of omnivory on food web properties.
Fatty Acid Composition of Tropical Fish Depends on Reservoir Trophic Status and Fish Feeding Habit
Authors: Gomes Aline D. , Tolussi Carlos E. , Boëchat Iola G. , Pompêo Marcelo L. M. , Cortez Maíra P. T. , Honji Renato M. , Moreira Renata G. 
Published: September 2016

AbstractEutrophication results in a deficiency of n‐3 LC‐PUFA (long‐chain polyunsaturated fatty acids) in aquatic food chains, affecting fish nutrition and physiology. The trophic transfer of FA (fatty acids) to fish species of different feeding habits was investigated in two reservoirs in southeast Brazil—the mesotrophic Ponte Nova Reservoir (PN) and the hypereutrophic Billings Reservoir (Bil). Total FA profile of stomach contents and adipose tissue, triacylglycerols (TAG), and phospholipids (PL) from liver and muscle of the omnivorous Astyanax fasciatus and the carnivorous Hoplias malabaricus were analyzed by gas chromatography. A prevalence of n‐6PUFA, as 18:2n‐6 (linoleic acid) and 20:4n‐6 (arachidonic acid, ARA) was observed in the stomach contents and in the tissues of A. fasciatus from the PN reservoir. In contrast, n‐3 LC‐PUFA, as 20:5n‐3 (eicosapentaenoic acid, EPA) was accumulated in fish tissues from Bil, resulting in higher n3/n6 and EPA/ARA ratios, compared to fish from PN. This differential FA accumulation was also observed for H. malabaricus, but differences were slightly minor, and no changes were observed in the EPA/ARA ratios between fish from both reservoirs. Regardless reservoir, FA profiles of TAG resembled that of their diet, whereas FA profiles of PL were more conservative and mainly comprised by LC‐PUFA. We conclude that reservoir trophic status affected the FA composition of food resources available to these fish species, resulting in differential allocation of n‐3 and n‐6 FA. As expected, FA profile of the investigated fish species also reflected their feeding habit and physiological demands.
Dual role for the unfolded protein response in the ovary: adaption and apoptosis
Authors: Huang Ning , Yu Yang , Qiao Jie 
Published: September 2016

AbstractThe endoplasmic reticulum (ER) is the principal organelle responsible for several specific cellular functions including synthesis and folding of secretory or membrane proteins, lipid metabolism, and Ca2+ storage. Different physiological as well as pathological stress conditions can, however, perturb ER homeostasis, giving rise to an accumulation of unfolded or misfolded proteins in the ER lumen, a condition termed ER stress. To deal with an increased folding demand, cells activate the unfolded protein response (UPR), which is initially protective but can become detrimental if ER stress is severe and prolonged. Accumulating evidence demonstrates a link between the UPR and ovarian development and function, including follicular growth and maturation, follicular atresia, and corpus luteum biogenesis. Additionally, ER stress and the UPR may also play an important role in the ovary under pathological conditions. Understanding the molecular mechanisms related to the dual role of unfolded protein response in the ovarian physiology and pathology may reveal the pathogenesis of some reproductive endocrine diseases and provide a new guidance to improve the assisted reproductive technology. Here we review the current literature and discuss concepts and progress in understanding the UPR, and we also analyze the role of ER stress and the UPR in the ovary.
Joubert Syndrome: Classic Sonographic Signs at 19 Weeks of Gestation
Authors: Singh Divya , Kaur Ladbans , Kaur Meetanpreet , Kaur Mangun 
Published: September 2016

AbstractJoubert syndrome is a rare condition with an incidence of 1:100,000. It has primarily an autosomal recessive inheritance pattern. It is characterized by episodic hyperpnea, ataxia, hypotonia, abnormal eye movements, and varying degrees of intellectual disability. The causative genetic mutations are identifiable in only 50 % of the cases. Hence, neuroimaging in correlation with clinical features form the mainstay in the diagnosis of this entity. The classic imaging appearance is the ‘molar-tooth’ sign in the midbrain which was first described on MRI. The fourth ventricle has a bat-wing or umbrella-like configuration. Our case illustrates the classic imaging signs of Joubert syndrome at 19 weeks of gestation.
Change of ground type by means of dynamic compaction: consequence on the calculation of seismic loadings
Authors: Brûlé S. , Duquesnoy S. 
Published: September 2016

Abstract
Soil improvement works by means of dynamic compaction or vibrocompaction improves mechanical characteristics of granular soils. Experience feedbacks point out the geotechnical conditions which are able to induce ground type change after ground improvement works. In this paper, in case of a two-layer geotechnical model and dynamic compaction technique, the necessary conditions are presented for a ground type change and the consequences on the magnitude of the seismic design loadings are studied for a five-storey building. Therefore, this article does not deal with liquefaction but only with seismic retro-analysis after soil densification.
Jóvenes con intención de salir. Cultura de la migración en estudiantes de Yucatán
Authors: Echeverría Martín , Lewin Fisher Pedro 
Published: September 2016

A partir de una encuesta representativa, aplicada a 1 243 alumnos de primaria, secundaria y preparatoria en el estado de Yucatán, México, en 2011, este artículo presenta resultados que perfilan la complejidad y multiplicidad de factores que intervienen en la conformación de lo que suele entenderse por “cultura de la migración”. Complementados con información cualitativa provenientes de entrevistas, los datos muestran que esta cultura no sólo constituye un terreno dinámico y en permanente disputa en el que fuerzas contrarias se confrontan para consolidar el arraigo comunitario o alentar las decisiones migratorias, sino que conforma un ámbito altamente sensible a la edad y sexo de los jóvenes, a su escolaridad, a las redes sociales de las que participan, el propio referente familiar, así como a diversas fuentes de información que influyen para afianzar distintas representaciones de los destinos migratorios.
A three-equation model for thin films down an inclined plane
Authors: Richard G. L. , Ruyer-Quil C. , Vila J. P. 
Published: September 2016

We derive a new model for thin viscous liquid films down an inclined plane. With an asymptotic expansion in the long-wave limit, the Navier–Stokes equations and the work–energy theorem are averaged over the fluid depth. This gives three equations for the mass, momentum and energy balance which have the mathematical structure of the Euler equations of compressible fluids with relaxation source terms, diffusive and capillary terms. The three variables of the model are the fluid depth, the average velocity and a third variable called enstrophy, related to the variance of the velocity. The equations are numerically solved by classical schemes which are known to be reliable and robust. The model gives satisfactory results both for the neutral stability curves and for the depth profiles of wavy films produced by a periodical forcing or by a random noise perturbation. The numerical calculations agree fairly well with experimental measurements of Liu & Gollub (Phys. Fluids, vol. 6, 1994, pp. 1702–1712). The calculation of the wall shear stress below the waves indicates a flow reversal at the first depth minimum downstream of the main hump, in agreement with experiments of Tihon et al. (Exp. Fluids, vol. 41, 2006, pp. 79–89).
No Means No, Or Does It? A Comparative Study of the Right to Refuse Treatment in a Psychiatric Institution
Authors: Gallagher Mehgan 
Published: September 2016

AbstractAround the world, people with mental disabilities are subject to many types of behavioral therapies against their will, including medications and restraints. This is especially true of people who are institutionalized. These intrusions are in violation of fundamental international human rights principles. People with mental disabilities are often stripped of many of their basic rights, including the right to determine what is done to their bodies. This article compares the prevailing law on the right to refuse treatment for people with mental disabilities in an institutional setting in three different nations on three continents, specifically in the United States, Kenya, and Brazil.
Partially hydrolysed guar gum ameliorates murine intestinal inflammation in association with modulating luminal microbiota and SCFA
Authors: Takagi Tomohisa , Naito Yuji , Higashimura Yasuki , Ushiroda Chihiro , Mizushima Katsura , Ohashi Yuji , Yasukawa Zenta , Ozeki Makoto , Tokunaga Makoto , Okubo Tsutomu , Katada Kazuhiro , Kamada Kazuhiro , Uchiyama Kazuhiko , Handa Osamu , Itoh Yoshito , Yoshikawa Toshikazu 
Published: September 2016

AbstractPartially hydrolysed guar gum (PHGG), a water-soluble dietary fibre produced by the controlled partial enzymatic hydrolysis of guar gum beans, has various physiological roles. This study aimed to elucidate the beneficial effects of PHGG on colonic mucosal damage in a murine 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis model. Acute colitis was induced in male C57BL/6 mice with TNBS after 2 weeks of pre-feeding with PHGG (5 %). The colonic mucosal inflammation was evaluated using macroscopic damage scores, and neutrophil infiltration was assessed by measuring tissue-associated myeloperoxidase (MPO) activity in the colonic mucosa. TNF-αexpression in the colonic mucosa was measured by ELISA and real-time PCR. Moreover, the intestinal microbiota and production of SCFA were assessed by real-time PCR and HPLC, respectively. Colonic damage due to TNBS administration was significantly ameliorated by PHGG treatment. Furthermore, PHGG significantly inhibited increases in MPO activity and TNF-αprotein and mRNA expression in the colonic mucosa in TNBS-induced colitis. On analysis of intestinal microbiota, we found that the concentration of theClostridium coccoidesgroup (Clostridiumcluster XIVa), theClostridium leptumsubgroup (Clostridiumcluster IV) and theBacteroides fragilisgroup had significantly increased in PHGG-fed mice. On analysis of SCFA, we found that the caecal content of acetic acid, propionic acid and butyric acid had significantly increased in PHGG-fed mice. Together, these results suggest that chronic ingestion of PHGG prevents the development of TNBS-induced colitis in mice by modulating the intestinal microbiota and SCFA, which may be significant in the development of therapeutics for inflammatory bowel disease.
Impaired glucose tolerance in first-episode drug-naïve patients with schizophrenia: relationships with clinical phenotypes and cognitive deficits
Authors: Chen D. C. , Du X. D. , Yin G. Z. , Yang K. B. , Nie Y. , Wang N. , Li Y. L. , Xiu M. H. , He S. C. , Yang F. D. , Cho R. Y. , Kosten T. R. , Soares J. C. , Zhao J. P. , Zhang X. Y. 
Published: September 2016

BackgroundSchizophrenia patients have a higher prevalence of type 2 diabetes mellitus with impaired glucose tolerance (IGT) than normals. We examined the relationship between IGT and clinical phenotypes or cognitive deficits in first-episode, drug-naïve (FEDN) Han Chinese patients with schizophrenia.MethodA total of 175 in-patients were compared with 31 healthy controls on anthropometric measures and fasting plasma levels of glucose, insulin and lipids. They were also compared using a 75 g oral glucose tolerance test and the homeostasis model assessment of insulin resistance (HOMA-IR). Neurocognitive functioning was assessed using the MATRICS Consensus Cognitive Battery (MCCB). Patient psychopathology was assessed using the Positive and Negative Syndrome Scale (PANSS).ResultsOf the patients, 24.5% had IGT compared with none of the controls, and they also had significantly higher levels of fasting blood glucose and 2-h glucose after an oral glucose load, and were more insulin resistant. Compared with those patients with normal glucose tolerance, the IGT patients were older, had a later age of onset, higher waist or hip circumference and body mass index, higher levels of low-density lipoprotein and triglycerides and higher insulin resistance. Furthermore, IGT patients had higher PANSS total and negative symptom subscale scores, but no greater cognitive impairment except on the emotional intelligence index of the MCCB.ConclusionsIGT occurs with greater frequency in FEDN schizophrenia, and shows association with demographic and anthropometric parameters, as well as with clinical symptoms but minimally with cognitive impairment during the early course of the disorder.
Language Competence and Social Preference in	Childhood
Authors: Troesch Larissa M. , Keller Karin , Grob Alexander 
Published: September 2016

Abstract. Language competence facilitates making contact with others, interpreting others’ behavior, and communicating one’s own needs. However, evidence on the relation between language competence and social preference, that is, the degree to which someone is accepted or rejected by the peer group, is mixed. The scope of the current study was to examine this relation by conducting a meta-analysis. We included studies published in English, without any restrictions on the form or year of publication. Results of 42 studies and 49 independent samples of 7,077 children (mean age = 6.0 years, SD = 1.9; range: 3.0–11.0 years) revealed a significant relation between oral language competence and social preference, with an effect size of r = .25. Gender, language modality, and methodological characteristics were tested as possible moderators but did not explain variation between studies. Age was a significant moderator, with language competence more important for younger than for older children in gaining social acceptance.