bluuebunny/crossref_metadata_2025_split huggingface dataset:
Owning Immigration: Messenger Ethnicity, Issue Ownership, and Support for Latino Candidates
Authors: Shortle Allyson , Johnson Tyler 
Published: August 2017

AbstractThe public opinion literature stresses the importance of source cues in determining which types of messages affect attitudes and which types do not. Building upon such research, we seek to determine if messenger ethnicity influences how individuals evaluate candidates speaking on immigration in the context of a campaign. Do Americans (and Anglo Americans in particular) view Latino candidates as more experienced, stronger leaders, more trustworthy, and more qualified on immigration than Anglo candidates? Moreover, do such relationships hold regardless of the valence of the message itself? Through an original survey experiment presenting subjects with immigration talk on the campaign trail, we find Latino candidates are reviewed more positively than Anglo candidates when it comes to the immigration messages they speak (especially when it comes to pro-immigration messages). Such findings give us insight into whether or not Latino candidates have the potential to “own” the issue of immigration, as well as offering another path by which Latino candidates can gain a strong foothold with the public in the context of a campaign.
DEFYING MERCANTILISM: ILLICIT TRADE, TRUST, AND THE JAMAICAN SEPHARDIM, 1660–1730
Authors: ZAHEDIEH NUALA 
Published: August 2017

AbstractRecent historians have highlighted the importance of the web of illicit commercial transactions which connected competing imperial networks to create an integrated Atlantic economy but have paid little attention to how co-operation worked across borders. Of necessity, participants acted without the legal institutions which are often afforded a central role in narratives of modernization. In the case of Jamaica, a hub of illicit trade, most merchants found it difficult to survive in this high-risk environment but members of the Sephardic diaspora, a traditional, communitarian group, had competitive advantages which they exploited with vigour. They did not rely on innate attributes of kinship, ethnicity, or religion. They closed entry and built on a favourable historical and geographical legacy to cultivate attributes which maintained high levels of social discipline with credible rewards and punishments which were reinforced by their outsider status. Their competitive advantages did stimulate retaliation but also allowed the Sephardim to combine with the Christian elite to capture rent-seeking opportunities. Far from falling away as modernization gained pace, the Sephardic diaspora survived and flourished by constructing the strong private-order institutions needed in large swathes of the economy where neither impersonal corporations, nor state enforcement mechanisms, were able to manage risk.
Human–crocodile conflict in the Indian Sundarban: an analysis of spatio-temporal incidences in relation to people's livelihood
Authors: Das Chandan Surabhi , Jana Rabindranath 
Published: August 2017

AbstractThe incidence of human–crocodile conflict is increasing, and fear of injury and loss of life is affecting public and political support for crocodile conservation. We studied conflicts between people and estuarine crocodiles Crocodylus porosus across socio-economic dimensions, using a spatio-temporal database. We collected data on 127 crocodile attacks that occurred during 2000–2013, through questionnaires including open- and close-ended questions, administered in 30 villages of five blocks of the Indian Sundarban. Most of the attacks (42%) occurred during winter (December–February), followed by the early monsoon (May–July; 27%). Almost 80% of victims were prawn seed collectors and were 11–50 years old, and 61.16% of victims died as a result of the attacks. Female victims accounted for a higher percentage of deaths (55.12%) than male victims (44.88%). Crocodile attacks were more common in the daytime than at night, with 76.35% of the killings occurring during 08.00–17.00. Most of the cases were recorded from Gosaba (34%), followed by Patharpratima (25.24%) and Namkhana (18.45%) blocks. The mean number of incidents per year was 9.07, with vulnerability and mortality rates of 0.07 and 0.04, respectively, per 10,000 persons. Existing management practices are insufficient to eliminate the risk of crocodile attacks and ensure the conservation of the Sundarban ecosystem. A comprehensive management plan for reducing dependency on forest resources is needed to minimize human–crocodile conflict.
The chain of security
Authors: de Goede Marieke 
Published: August 2017

AbstractIncreasingly, private companies – including Twitter, airlines, and banks – find themselves in the frontline of fighting terrorism and other security threats, because they are obliged to mine and expel suspicious transactions. This analytical work of companies forms part of a chain, whereby transactions data are analysed, collected, reported, shared, and eventually deployed as a basis for intervention by police and prosecution. This article develops the notion of theChain of Securityin order to conceptualise the ways in which security judgements are made across public/private domains and on the basis of commercial transactions. Drawing on the work of Bruno Latour, this article understands the security chain as the set of practices whereby commercial transactions are collected, stored, transferred, and analysed, in order to arrive at security facts. Understanding the trajectory of the suspicious transaction as a series of translations across professional domains draws attention to the processes of sequencing, movement, and referral in the production of security judgements. The article uses the chain of financial suspicious transactions reporting as example to show how this research ‘thinking tool’ can work. In doing so, it aims to contribute to debates at the intersection between International Relations (IR) and Science-and-Technology Studies (STS).
The model of the influence of the electron refluxing on the electron transport andKαemission
Authors: Zhao J.C. , Cao L.H. , Zheng J.H. , Zhao Z.Q. , Liu Z.J. , Zheng C.Y. , Zhang H. , Gu Y.Q. , Liu J. 
Published: August 2017

AbstractIn our previous research (Zhaoet al., 2016), we focus on the transport processes from hot electrons toKαX-ray emission in a copper foil and nanobrush target when the electron refluxing effect is not taken into account. In this work, considering the refluxing effect, the transport of hot electrons in a solid target is studied by adding the electric fields both at the front and rear surfaces of the target with Monte Carlo code Geant4. Simulation results show that the electron refluxing has an important influence onKαphoton yield and the size ofKαradiation source.Kαyield from the 10-μm-thick target with the electron refluxing effect is 2.7–3.7 times more than that without the refluxing for the electron temperatures from 0.4 to 1.4 MeV. The laser-to-Kαphoton energy conversion efficiency${\rm \eta} _{L \to K_{\rm \alpha}} $with the refluxing effect is always higher than that without the refluxing, and both of them decrease gradually with laser strengthIλ2. Considering the electron refluxing effect or not, the variations ofKαyield with the target thicknessdare very different. A critical thickness of the targetdc(~30 μm) is achieved to confirm whether the refluxing effect is valid for the target. For the target with the thicknessdless thandc, the refluxing effect can enhanceKαyield with several times, while for the target with the thicknessdlarger thandc, the refluxing effect is not so effective. The full-width at half-maximum increases from 23 to 56 µm after including the refluxing effect by the electron beam with the radius of 10 µm and the temperature of 400 keV.
Molecular survey ofBartonella henselaeandBartonella clarridgeiaein pet cats across Japan by species-specific nested-PCR
Authors: SATO S. , KABEYA H. , NEGISHI A. , TSUJIMOTO H. , NISHIGAKI K. , ENDO Y. , MARUYAMA S. 
Published: August 2017

SUMMARYCats are known to be the main reservoir forBartonella henselaeandBartonella clarridgeiae, which are the agents of ‘cat-scratch disease’ in humans. In the present study, we investigated the prevalence of the twoBartonellaspecies on 1754 cat bloods collected from all prefectures in Japan during 2007–2008 by a nested-polymerase chain reaction (PCR) targeting the 16S–23S rRNA internal transcribed spacer region. Overall,BartonellaDNA was detected in 4·6% (80/1754) of the cats examined. The nested-PCR showed that 48·8% (39/80) of the positive cats were infected withB. henselaemono-infection, 33·8% (27/80) withB. clarridgeiaemono-infection and 17·5% (14/80) were infected with both species. The prevalence (5·9%; 65/1103) ofBartonellainfection in the western part of Japan was significantly higher than that (2·3%; 15/651) of eastern Japan (P< 0·001). Statistical analysis of the cats examined suggested a significant association betweenBartonellainfection and FeLV infection (OR = 1·9; 95% CI = 1·1–3·4), but not with FIV infection (OR = 1·6; 95% CI = 1·0–2·6).
Reassessment of the distribution and population size of Spizella wortheni
Authors: SCOTT-MORALES LAURA M. , VELA-COIFFIER PATRICIA , COTERA-CORREA MAURICIO , ALMEJO-RAMOS MIRNA , CANALES-DELGADILLO JULIO 
Published: August 2017

SummaryInformation deficit constrains our capacity to assess the status of threatened species in regional and global contexts. In this study of the endangered Worthen’s Sparrow Spizella wortheni, we first review its current and potential distribution using the species distribution software, Maxent. An initial basic model was constructed using historical records, and used to guide a subsequent search for additional populations in summer 2013. Using the information gathered from our survey, we built a second, breeding model, to update the current and potential species distribution. Population size was estimated using line transects of variable length to count singing males and calculate densities per 10 ha. We found 10 new small reproductive populations dispersed south of the established core area, increasing the extent of occurrence of the species from 25 km2 to almost 17,000 km2. Suitable habitat across the species’ range was more than threefold higher in the breeding compared with the basic model. We counted 316 males, with a mean density of four individuals per 10 ha. Our results demonstrate that conservation assessment based on limited records can exaggerate the vulnerability of species, and confirm that the Worthen’s Sparrow population and geographic distribution range are larger than previously determined, indicating that the Red List status of this species should be reconsidered. The use of niche models was successful in enhancing species information data quantity (e.g. range extensions) and quality (e.g. more precise habitat requirements), facilitating improved understanding of needs and conservation status in the wild.
Neo-oogenesis in mammals
Authors: Porras-Gómez Tania Janeth , Moreno-Mendoza Norma 
Published: August 2017

SummaryRecently, the existence of a mechanism for neo-oogenesis in the ovaries of adult mammals has generated much controversy within reproductive biology. This mechanism, which proposes that the ovary has cells capable of renewing the follicular reserve, has been described for various species of mammals. The first evidence was found in prosimians and humans. However, these findings were not considered relevant because the predominant dogma for reproductive biology at the time was that of Zuckerman. This dogma states that female mammals are born with finite numbers of oocytes that decline throughout postnatal life. Currently, the concept of neo-oogenesis has gained momentum due to the discovery of cells with mitotic activity in adult ovaries of various mammalian species (mice, humans, rhesus monkeys, domestic animals such as pigs, and wild animals such as bats). Despite these reports, the concept of neo-oogenesis has not been widely accepted by the scientific community, generating much criticism and speculation about its accuracy because it has been impossible to reproduce some evidence. This controversy has led to the creation of two positions: one in favour of neo-oogenesis and the other against it. Various animal models have been used in support of both camps, including both classic laboratory animals and domestic and wild animals. The aim of this review is to critically present the current literature on the subject and to evaluate the arguments pro and contra neo-oogenesis in mammals.
Post-transplant lymphoproliferative disease is associated with early sternotomy and left ventricular hypoplasia during infancy: a population-based retrospective review
Authors: Ekman-Joelsson Britt-Marie , Wåhlander Håkan , Synnergren Mats , Sager Madeleine , Mellgren Karin 
Published: August 2017

AbstractBackgroundHeart transplantation has been an option for children in Sweden since 1989. As our unit faced an increased rate of post-transplant lymphoproliferative disorder, the objective of the study was to identify possible risk factors.MethodsThis is a retrospective study of all children aged 0–18 years who underwent heart transplantation in Gothenburg from 1989 to 2014.ResultsA total of 71 children underwent heart transplantation. The overall incidence of post-transplant lymphoproliferative disorder was 14% (10/71); however, 17% (6/36) of those undergoing transplantation after 2007 developed lymphoma, compared with only 10% (4/35) of transplantation cases before 2007 (p=0.85). The mean age at transplantation was 9 years (0–17). The mean post-transplant follow-up time was 5.5 years (0.5–21.9) in the group that developed post-transplant lymphoproliferative disorder, compared with 10.2 years (0.02–25.2) in those who did not. In our study group, risk factors for post-transplant lymphoproliferative disorder were surgically palliated CHD (p=0.0005), sternotomy during infancy (p⩽0.0001), hypoplastic left ventricle (p=0.0001), number of surgical events (p=0.0022), mismatch concerning Epstein–Barr virus infection – that is, a positive donor–negative recipient (p⩽0.0001) – and immunosuppressive treatment with tacrolimus compared with ciclosporine (p=0.028).DiscussionThis study has three major findings. First, post-transplant lymphoproliferative disorder only developed in subjects born with CHD. Second, the vast majority (9/10) of the subjects developing the disorder had undergone sternotomy as infants. Third, the number of surgical events correlated with a higher risk for developing post-transplant lymphoproliferative disorder.
To use or not to use: Feature selection for sentiment analysis of highly imbalanced data
Authors: KÜBLER SANDRA , LIU CAN , SAYYED ZEESHAN ALI 
Published: August 2017

AbstractWe investigate feature selection methods for machine learning approaches in sentiment analysis. More specifically, we use data from the cooking platform Epicurious and attempt to predict ratings for recipes based on user reviews. In machine learning approaches to such tasks, it is a common approach to use word or part-of-speech n-grams. This results in a large set of features, out of which only a small subset may be good indicators for the sentiment. One of the questions we investigate concerns the extension of feature selection methods from a binary classification setting to a multi-class problem. We show that an inherently multi-class approach, multi-class information gain, outperforms ensembles of binary methods. We also investigate how to mitigate the effects of extreme skewing in our data set by making our features more robust and by using review and recipe sampling. We show that over-sampling is the best method for boosting performance on the minority classes, but it also results in a severe drop in overall accuracy of at least 6 per cent points.
Assessment of cognitive function in patients with metastatic cancer: Are we using the right tools?
Authors: Kurita Geana Paula , Sandvad Marlene , Lundorff Lena , De Mattos-Pimenta Cibele Andrucioli , Højsted Jette , Sjøgren Per 
Published: August 2017

ABSTRACTObjective:This study aimed at analyzing the validity and reliability of the continuous reaction time (CRT) test, the finger-tapping test (FTT), the Digit Span Test (DST), the Trail Making Test – part B (TMTB), and the Mini-Mental State Examination (MMSE) in patients with metastatic cancer.Method:Eighty adult patients and 81 healthy controls were assessed between July of 2010 and November of 2015. The neuropsychological tests were analyzed regarding construct/discriminant/criterion validity and reliability.Results:In terms of construct validity, it was not possible to estimate a model for the MMSE because of a skewed response distribution. For discriminant validity, patients were slower on two measures of the CRT (p= 0.00483,p= 0.00030) and FTT dominant hand (p= 0.00306). Regarding sensitivity and specificity, only the DST and TMTB seemed to predict cognitive deficit; however, the ROC curve areas were ≤ 0.73. In terms of criterion validity, there were few significant correlations between the tests and the sociodemographic and clinical variables, and for the most part were very weak. Reliability was deemed to be adequate for the TMTB, DST, and FTT.Significance of results:The findings of the full validation analyses were not clear-cut. However, CRT test, DST, FTT, and TMTB demonstrated partial positive results, indicating that these tests have good potential for use in clinical settings and require further study.
Lysine demethylase KDM2A inhibits TET2 to promote DNA methylation and silencing of tumor suppressor genes in breast cancer
Authors: Chen J-Y , Luo C-W , Lai Y-S , Wu C-C , Hung W-C 
Published: August 2017

AbstractThe coupling between DNA methylation and histone modification contributes to aberrant expression of oncogenes or tumor suppressor genes that leads to tumor development. Our previous study demonstrated that lysine demethylase 2A (KDM2A) functions as an oncogene in breast cancer by promoting cancer stemness and angiogenesis via activation of the Notch signaling. Here, we demonstrate that knockdown of KDM2A significantly increases the 5′-hydroxymethylcytosine (5′-hmc) level in genomic DNA and expression of tet-eleven translocation 2 (TET2) in various breast cancer cell lines. Conversely, ectopic expression of KDM2A inhibits TET2 expression in KDM2A-depleted cells suggesting TET2 is a transcriptional repression target of KDM2A. Our results show that KDM2A interacts with RelA to co-occupy at the TET2 gene promoter to repress transcription and depletion of RelA or KDM2A restores TET2 expression. Upregulation of TET2 in the KDM2A-depleted cells induces the re-activation of two TET downstream tumor suppressor genes, epithelial cell adhesion molecule (EpCAM) and E-cadherin, and inhibits migration and invasion. On the contrary, knockdown of TET2 in these cells decreases EpCAM and E-cadherin and increases cell invasiveness. More importantly, TET2 expression is negatively associated KDM2A in triple-negative breast tumor tissues, and its expression predicts a better survival. Taken together, we demonstrate for the first time that TET2 is a direct repression target of KDM2A and reveal a novel mechanism by which KDM2A promotes DNA methylation and breast cancer progression via the inhibition of a DNA demethylase.
Plant-made polio type 3 stabilized VLPs—a candidate synthetic polio vaccine
Authors: Marsian Johanna , Fox Helen , Bahar Mohammad W. , Kotecha Abhay , Fry Elizabeth E. , Stuart David I. , Macadam Andrew J. , Rowlands David J. , Lomonossoff George P. 
Published: August 2017

AbstractPoliovirus (PV) is the causative agent of poliomyelitis, a crippling human disease known since antiquity. PV occurs in two distinct antigenic forms, D and C, of which only the D form elicits a robust neutralizing response. Developing a synthetically produced stabilized virus-like particle (sVLP)-based vaccine with D antigenicity, without the drawbacks of current vaccines, will be a major step towards the final eradication of poliovirus. Such a sVLP would retain the native antigenic conformation and the repetitive structure of the original virus particle, but lack infectious genomic material. In this study, we report the production of synthetically stabilized PV VLPs in plants. Mice carrying the gene for the human PV receptor are protected from wild-type PV when immunized with the plant-made PV sVLPs. Structural analysis of the stabilized mutant at 3.6 Å resolution by cryo-electron microscopy and single-particle reconstruction reveals a structure almost indistinguishable from wild-type PV3.
Sparse orthogonal population representation of spatial context in the retrosplenial cortex
Authors: Mao Dun , Kandler Steffen , McNaughton Bruce L. , Bonin Vincent 
Published: August 2017

AbstractSparse orthogonal coding is a key feature of hippocampal neural activity, which is believed to increase episodic memory capacity and to assist in navigation. Some retrosplenial cortex (RSC) neurons convey distributed spatial and navigational signals, but place-field representations such as observed in the hippocampus have not been reported. Combining cellular Ca2+ imaging in RSC of mice with a head-fixed locomotion assay, we identified a population of RSC neurons, located predominantly in superficial layers, whose ensemble activity closely resembles that of hippocampal CA1 place cells during the same task. Like CA1 place cells, these RSC neurons fire in sequences during movement, and show narrowly tuned firing fields that form a sparse, orthogonal code correlated with location. RSC ‘place’ cell activity is robust to environmental manipulations, showing partial remapping similar to that observed in CA1. This population code for spatial context may assist the RSC in its role in memory and/or navigation.
Two-magnon scattering in the 5d all-in-all-out pyrochlore magnet Cd2Os2O7
Authors: Nguyen Thi Minh Hien , Sandilands Luke J. , Sohn C. H. , Kim C. H. , Wysocki Aleksander L. , Yang In-Sang , Moon S. J. , Ko Jae-Hyeon , Yamaura J. , Hiroi Z. , Noh Tae Won 
Published: August 2017

Abstract5d pyrochlore oxides with all-in-all-out magnetic order are prime candidates for realizing strongly correlated, topological phases of matter. Despite significant effort, a full understanding of all-in-all-out magnetism remains elusive as the associated magnetic excitations have proven difficult to access with conventional techniques. Here we report a Raman spectroscopy study of spin dynamics in the all-in-all-out magnetic state of the 5d pyrochlore Cd2Os2O7. Through a comparison between the two-magnon scattering and spin-wave theory, we confirm the large single ion anisotropy in this material and show that the Dzyaloshinskii–Moriya and exchange interactions play a significant role in the spin-wave dispersions. The Raman data also reveal complex spin–charge–lattice coupling and indicate that the metal–insulator transition in Cd2Os2O7 is Lifshitz-type. Our work establishes Raman scattering as a simple and powerful method for exploring the spin dynamics in 5d pyrochlore magnets.