bluuebunny/crossref_metadata_2025_split huggingface dataset:
Manipulating electronic phase separation in strongly correlated oxides with an ordered array of antidots
Authors: Zhang Kai , Du Kai , Liu Hao , Zhang X.-G. , Lan Fanli , Lin Hanxuan , Wei Wengang , Zhu Yinyan , Kou Yunfang , Shao Jian , Niu Jiebin , Wang Wenbin , Wu Ruqian , Yin Lifeng , Plummer E. W. , Shen Jian 
Published: July 2015

Significance
Electronic phase separation (EPS) is one of the most intriguing properties in complex materials. Great efforts have been made to understand or manipulate EPS, but how these phases are created and grow during percolation, let alone artificial control/fabrication of these phases, is still mysterious. In this work, we use a conceptual approach, i.e., fabricating antidots in manganites, and use their ferromagnetic metallic edge states to control the nucleation and growth of EPS domains. Consequently, we are able to tune the physical properties of the system without using external fields or changing doping concentration.
HIV Protease Inhibitors in Pulmonary Hypertension: Rationale and Design of a Pilot Trial in Idiopathic Pulmonary Arterial Hypertension
Authors: Li Ying , Li Xiao‐hui , Yu Zai‐xin , Cai Jing‐jing , Billiar Timothy R. , Chen Alex F. , Lv Ben , Chen Zi‐ying , Huang Zhi‐jun , Yang Guo‐ping , Song Jie , Liu Bin , Yuan Hong 
Published: July 2015

We propose an exploratory clinical study, the first of its kind to our knowledge, to determine the safety and potential clinical benefit of the combination of the HIV protease inhibitors (HIV‐PIs) saquinavir and ritonavir (SQV+RIT) in patients with idiopathic pulmonary arterial hypertension (IPAH). This study is based on evidence that (1) HIV‐PIs can improve pulmonary hemodynamics in experimental models; (2) both Toll‐like receptor 4 and high‐mobility group box 1 (HMGB1) participate in the pathogenesis of experimental pulmonary hypertension; and (3) a high‐throughput screen for inhibitors of HMGB1‐induced macrophage activation yielded HIV‐PIs as potent inhibitors of HMGB1‐induced cytokine production. In this proposed open‐label, pre‐post study, micro, low, and standard doses of SQV+RIT will be given to IPAH patients for 14 days. Patients will receive follow‐up for the next 14 days. The primary outcome to be evaluated is change in HMGB1 level from baseline at 14 days. The secondary outcome is changes in tumor necrosis factor α, interleukin 1β, interleukin 6, C‐reactive protein, pulmonary arterial pressure based on echocardiography parameters and New York Heart Association/World Health Organization functional class, and Brog dyspnea scale index from baseline at 14 days. Other secondary measurements will include N‐terminal pro‐brain natriuretic peptide, atrial natriuretic peptide, and 6‐minute walk distance. We propose that SQV+RIT treatment will improve inflammatory disorders and pulmonary hemodynamics in IPAH patients. If the data support a potentially useful therapeutic effect and suggest that SQV+RIT is safe in IPAH patients, the study will warrant further investigation. (ClinicalTrials.gov identifier: NCT02023450.)
Surveillance indicators and their use in implementation of the Marine Strategy Framework Directive
Authors: Shephard Samuel , Greenstreet Simon P. R. , Piet GerJan J. , Rindorf Anna , Dickey-Collas Mark 
Published: July 2015

Abstract
The European Union Marine Strategy Framework Directive (MSFD) uses indicators to track ecosystem state in relation to Good Environmental Status (GES). These indicators were initially expected to be “operational”, i.e. to have well-understood relationships between state and specified anthropogenic pressure(s), and to have defined targets. Recent discussion on MSFD implementation has highlighted an additional class of “surveillance” indicators. Surveillance indicators monitor key aspects of the ecosystem for which there is: first, insufficient evidence to define targets and support formal state assessment; and/or second, where links to anthropogenic pressures are either weak or not sufficiently well understood to underpin specific management advice. Surveillance indicators are not only expected to directly track state in relation to GES, but also to provide complementary information (including warning signals) that presents a broader and more holistic picture of state, and inform and support science, policy, and management. In this study, we (i) present a framework for including surveillance indicators into the Activity–Pressure–State–Response process, (ii) consider a range of possible indicators that could perform this surveillance role, and (iii) suggest criteria for assessing the performance of candidate surveillance indicators, which might guide selection of the most effective indicators to perform this function.
Stability property of numerical Cherenkov radiation and its application to relativistic shock simulations
Authors: Ikeya Naoki , Matsumoto Yosuke 
Published: July 2015

Abstract
We studied the stability property of numerical Cherenkov radiation in relativistic plasma flows employing particle-in-cell simulations. Using the implicit finite-difference time-domain method to solve the Maxwell equations, we found that nonphysical instability was greatly inhibited with a Courant–Friedrichs–Lewy (CFL) number of 1.0. The present result contrasts with recently reported results (Vay et al. 2011, J. Comp. Phys., 230, 5908; Godfrey & Vay 2013, J. Comp. Phys., 248, 33; Xu et al. 2013, Comput. Phys. Commun., 184, 2503) in which magical CFL numbers in the range 0.5–0.7 were obtained with explicit field solvers. In addition, we found employing higher-order shape functions and an optimal implicitness factor further suppressed long-wavelength modes of the instability. The findings allowed the examination of the long-term evolution of a relativistic collisionless shock without the generation of nonphysical wave excitations in the upstream. This achievement will allow us to investigate particle accelerations in relativistic shocks associated with, for example, gamma-ray bursts.
Continuous 48‐Hour Wireless Esophageal pH Monitoring in Children
Authors: Ravi Anupama , Gunasekaran Thirumazhisai , Berman James 
Published: July 2015

ABSTRACTAim:Comparison of days 1 and 2 to each other and to the total recording of 48 hours in continuous 48‐hour wireless esophageal pH monitoring in children.Methods:A retrospective study of 105 patients who underwent 48‐hour pH monitoring (Bravo) studies between January 1992 and June 2010 was performed. Reflux variables were compared between days 1 and 2.Results:A total of 58 (55.2%) patients were men. The number of reflux episodes, number of long reflux >5 minutes, duration of the longest reflux (minutes), time pH <4 (minutes), fraction time pH <4 supine (%), fraction time pH <4 upright (%), reflux index, and DeMeester score did not differ between days 1 and 2.Conclusions:No effect of anesthesia was observed on the gastroesophageal reflux parameters on children.
In Vitro Gluten Challenge Test for Celiac Disease Diagnosis
Authors: Khalesi Maryam , Jafari Seyed Ali , Kiani Mohammadali , Picarelli Antonio , Borghini Raffaele , Sadeghi Ramin , Eghtedar Alireza , Ayatollahi Hosein , Kianifar Hamid R. 
Published: July 2015

ABSTRACTObjectives:The in vitro gluten challenge test is an important diagnostic modality in celiac disease (CD), especially in patients who begin treatment with a gluten‐free diet before adequate diagnostic workup or in cases with atypical CD. Available literature was reviewed regarding the accuracy of the in vitro gluten challenge test for CD diagnosis.Methods:MEDLINE, Scopus, and Google Scholar were searched, and studies that used serology and bowel biopsy as the criterion standard for diagnosis were included in our study. Data on authors, publication year, characteristics of the patient and control groups, patients’ diet, duration of the gluten challenge test, histology findings, endomysial antibody (EMA) and anti‐tissue transglutaminase (tTG) levels, CD markers, and intercellular cell adhesion molecule‐1, and human leukocyte antigens before and after the gluten challenge test were extracted.Results:Overall, 15 studies were included in this meta‐analysis. Pooled sensitivity %/specificity % was 84/99 for EMA after the challenge, 52/96 for EMA without the challenge, 95.5/98.3 for anti‐tTG after the challenge, and 95.1/98.3 for anti‐tTG without the challenge test. Sensitivity/specificity for immunological markers were 89/97 for the percentage of CD25+‐lamina propria lymphocytes, 96/91 for the percentage of CD3+‐lamina propria lymphocytes, and 96.1/85.7 for the percentage of intercellular cell adhesion molecule‐1‐lamina propria lymphocytes. The factors that increased the sensitivity of EMA were longer test duration, and the evaluation of patients on a gluten‐containing diet or short‐term gluten‐free diet.Conclusions:The in vitro gluten challenge test can be a useful part of the diagnostic workup of CD, rather than only a model to evaluate its mechanisms.
Distraction Injury of the Thoracic Spine With Spinal Cord Transection and Vascular Injury in a 5-Week-Old Infant Boy
Authors: Brink Farah W. , Gold Delia L. , Adler Brent , Letson Megan McGraw 
Published: July 2015

Abstract
Distraction injury of the spine with spinal cord transection and adjacent vascular injury is rarely described in the setting of child physical abuse. We report a 5-week-old infant boy who sustained these injuries after an abusive event. The clinical presentation, imaging findings, and recommended evaluation modalities are discussed. An overview of pediatric spinal column and vascular injuries secondary to physical abuse is given.
The moderating role of Hofstede’s cultural dimensions in the customer-brand relationship in China and India
Authors: Hur Won-Moo , Kang Seongho , Kim Minsung 
Published: July 2015

Purpose– The purpose of this paper is to enhance the understanding of customer-brand relationships in the international marketplace, and empirically investigates and compares the customer-brand relationship development process between Indian and Chinese markets. In detail, four out of Hofstede’s original five national culture dimensions were adopted as moderators in the process of customer-brand relationship development between two markets.Design/methodology/approach– To test hypotheses, responses from 539 Indian and 400 Chinese mobile phone consumer samples were achieved, and the proposed model was estimated by using structural equations based on the partial least squares algorithm.Findings– The results demonstrate that utilitarian value and brand affect play a significant role in building brand loyalty for Chinese consumers, while hedonic value and perceived risk contribute more in building brand loyalty for Indian consumers.Research limitations/implications– This study indicated that the cultural difference affects both on brand trust formation and on the relationship between brand trust/affect and brand loyalty, implying that more customized brand management strategies should be adopted.Practical implications– Global brand values must be communicated for each culture appropriately. It is desirable that the identified match, utilitarian value-Chinese customers and hedonic value-Indian customers, be consistently presented to each cultural market in a more integrative manner.Originality/value– This study identified that the route from the development of value proposition to building up brand trust and brand affect is a critical step toward achieving brand loyalty in Indian and Chinese markets.
Attitudes to other ethnicities among New Zealand workers
Authors: Houkamau Carla , Boxall Peter 
Published: July 2015

Purpose– The purpose of this paper is to examine the “other-group orientation” (OGO) of New Zealand (NZ) workers as a way of measuring their attitudes to the growing ethnic diversity in the contemporary workplace.Design/methodology/approach– In all, 500 randomly selected NZ employees were surveyed through computer-assisted telephone interviews. Males, females and ethnic groups were included according to their current proportions in the NZ workforce. Analysis is based on 485 useable cases.Findings– While New Zealanders generally have a high level of OGO, minority ethnic groups and graduates score higher on OGO. Among people under 38 years, males tend to have a higher OGO, while among those over 38, females tend to be higher.Research limitations/implications– The study shows the value of studying the attitudes of workers in relation to diversity and OGO. Workers bring their own orientations into the workplace, affecting the way they relate to their co-workers.Social implications– The pathway to more inclusive workplaces in NZ lies largely in influencing the attitudes and behaviour of NZ Europeans. The study suggests that inclusive educational experiences may be a key part of that process.Originality/value– While the research shows that NZ workers are generally very positive about ethnic diversity, it reveals variations among ethnic and educational groups in terms of their openness to others.
Dialogic communication on universities in Ghana libraries’ websites
Authors: Agyemang Franklin Gyamfi , Boateng Henry , Dzandu Michael Dzigbordi 
Published: July 2015

Purpose– This study aims to ascertain the contents of universities in Ghana libraries’ websites and find the dialogic potential of the websites.Design/methodology/approach– A qualitative content analysis technique was used. The sample includes the libraries’ websites of universities in Ghana that have received presidential charter. A checklist was developed to assess the content of the websites. In assessing the dialogic potential of the websites, Kent and Taylors’ framework was used.Findings– Findings from the study show that Ghanaian universities libraries’ websites are providing only static information about libraries and their services. The libraries’ websites are deficient in providing vital information on newspapers, print journals, frequently asked questions and date of post. Again, findings of the study indicate that universities in Ghana libraries’ websites have poor dialogic features.Originality/value– There is no study investigating the dialogic potential of universities in Ghana libraries’ websites.
The impact of Twitter on libraries: a critical review of the literature
Authors: Vassilakaki Evgenia , Garoufallou Emmanouel 
Published: July 2015

Purpose– The paper aims to present a critical review on the adoption and use of Twitter in libraries. Twitter, a microblogging service, is becoming more and more popular among libraries as a means of reaching users and as a marketing tool for their services.Design/methodology/approach– The method of systematic review is used to identify, collect and critically present all relevant literature. Papers’ aims were analyzed to identify the emergent themes and sub-themes in an effort to gain a better understanding of libraries’ use of Twitter.Findings– A systematic and critical analysis of the literature revealed the specific reasons why a library should adopt Twitter; the specific examples and thoughts on how Twitter could be used to promote libraries’ interests; the different ways Twitter had affected diverse aspects and functionalities of libraries; and the attempts to provide guidelines for librarians.Research limitations/implications– This literature review has implications for research in that libraries could explore the way public view their presence on social networking sites such as Twitter to better gain from it. In addition, it indicates what libraries should expect when they adopt Twitter. This study reviews only papers published between 2007 and 2013 in the English language.Originality/value– This paper contributes in identifying, collecting, analyzing and critically presenting published research referring to the adoption of Twitter in the field of Library Science. In addition, it identifies and discusses the main issues librarians and libraries need to consider, when faced with the challenge of adopting Twitter.
Evaluating the validity of Student Evaluation of Teaching Effectiveness (SET) in India
Authors: Mittal Sanjiv , Gera Rajat , Batra Dharminder Kumar 
Published: July 2015

Purpose
– There is a debate in literature about the generalizability of the structure and the validity of the measures of Student Evaluation of Teaching Effectiveness (SET). This debate spans the dimensionality and validity of the construct, and the use of the measure for summative and formative purposes of teachers valuation and feedback. The purpose of this paper is to contribute to the debate on the aforementioned issues. Specifically the paper tests the relationship of teacher’s “charisma” trait with a measure of SET consisting of the two dimensions of “lecturer ability” and “module attributes.” The market characteristics of the paper are those of an emerging market and cross-cultural context with a specific reference to India.

Design/methodology/approach
– In this study, a two-dimensional scale of SET, which was originally developed by Shevlin et al. (2000) in their study in the UK, was empirically tested with Indian students and modified. Empirical data were collected from Indian students pursuing their MBA program in a north Indian university and statistical testing using exploratory and confirmatory factor analyses was undertaken. The proposed relationship of a teacher’s “charisma” trait was tested as a reflective construct comprising of the two dimensions of SET with the help of the software package Amos ver 4.0.

Findings
– The results indicate that the measure of SET is influenced by the teacher’s “Charisma” (trait), thus providing evidence of a halo effect. This raises the issue of validity of SET as an instrument for measuring teaching effectiveness (TE). The results provide support to the hypothesis that structure of SET is multidimensional along with the need for adapting the instrument in diverse cultural and market contexts.

Originality/value
– This study contributes to the debate on the validity, structure and use of SET as an instrument for measuring TE in a developing market with cross-cultural implications such as India.
Predicting elementary student teachers’ technology acceptance
Authors: Anderson Susan E , Groulx Judith G 
Published: July 2015

Purpose
– The purpose of this paper is to evaluate intrinsic factors associated with student teachers’ intentions to integrate technology during their first year of teaching in elementary school classrooms.

Design/methodology/approach
– The researchers surveyed 103 undergraduate teacher candidates who had completed student teaching. The survey measured five factors derived from three inter-related theoretical models. A four-step hierarchical multiple regression analysis determined the contribution of each variable (value beliefs, self-efficacy beliefs, perceived ease of use, and subjective norm) to the prediction of intentions.

Findings
– The best predictors were subjective norm and perceived ease of use, which predicted 65 percent of the variance in intentions. Student teachers tended to anticipate using technology in their future classrooms when they perceived that significant others expected them to do so and thought that it would be relatively easy to accomplish. Most believed that technology integration would be effective and were confident that they could accomplish it; however, their value and self-efficacy beliefs were not the best predictors of their intentions to integrate technology in elementary classrooms.

Originality/value
– This study contributes to the literature on modeling technology acceptance in education. The model developed is unique compared to those presented in related studies. The results provide insight into factors associated with elementary preservice teachers’ intentions to integrate technology and highlight the close association between intentions and subjective norm at a crucial transition point in new teacher development.
3D online environments: ethical challenges for marketing research
Authors: Krasonikolakis Ioannis , Pouloudi Nancy 
Published: July 2015

Purpose– The purpose of this paper is twofold: to provide an overview of related studies and to highlight research gaps and questions that need to be addressed. Research conducted in three-dimensional (3D) online environments constitutes a different research context, not least because it involves the recruitment of avatars in the research process. Researchers need to appreciate better the ethical concerns that arise in this novel, fast-evolving context and how these concern different stakeholders.Design/methodology/approach– The paper employs an interdisciplinary desk-research approach. It critically reviews related literature, highlights the involved stakeholders, discusses ethical issues from a marketing research perspective and concludes with a discussion of related studies and research gaps, providing direct future research avenues.Findings– The characteristics of the 3D online environments and the behaviour and experiences of their users set the boundaries and guide the way regarding the ethical research in this context.Research limitations/implications– The paper does not present primary empirical results, instead it reviews and critiques related literature in 3D online environments and sets the agenda for future research.Practical implications– The paper provides ethical guidelines and identifies blurred areas in conducting or participating in research in 3D online environments.Originality/value– Based on earlier studies and examples of ethical concerns when studying 3D online environments, this paper emphasises the parameters that should be taken into consideration in current and future research studies.
20 years of ETHICOMP: time to celebrate?
Authors: Stahl Bernd Carsten , Ess Charles M 
Published: July 2015

Purpose
– The purpose of this paper is to give an introduction to the special issue by providing background on the ETHICOMP conference series and a discussion of its role in the academic debate on ethics and computing. It provides the context that influenced the launch of the conference series and highlights its unique features. Finally, it provides an overview of the papers in the special issues.

Design/methodology/approach
– The paper combines an historical account of ETHICOMP and a review of the existing papers.

Findings
– ETHICOMP is one of the well-established conference series (alongside IACAP and CEPE) focused on ethical issues of information and computing. Its special features include: multidisciplinary and diversity of contributors and contributions; explicit outreach to professionals whose work is to design, build, deploy and maintain specific computing applications in the world at large; creation of knowledge that is accessible and relevant across fields and disciplines; intention of making a practical difference to development, use and policy of computing principles and artefacts; and creation of an inclusive, supportive and nurturing community across traditional knowledge silos.

Originality/value
– The paper is the first one to explicitly define the nature of ETHICOMP which is an important building block in the future development of the conference series and will contribute to the further self-definition of the ETHICOMP community.