bluuebunny/crossref_metadata_2025_split huggingface dataset:
Influence of need for cognition and need for cognitive closure on three information behavior orientations
Authors: Fortier Alexandre , Burkell Jacquelyn 
Published: April 2015

ABSTRACTNeed for Cognition and Need for Cognitive Closure are two stable traits that can enlighten the understanding of inter‐individual variations in information behavior. Following a qualitative phase, an information behavior scale was developed using items related to the ways in which information is needed, sought, used and shared. This scale was tested with 122 undergraduate students. Results of a factor analysis indicated three different and non‐mutually exclusive aspects of information behavior: orientation to rule following, preference for familiarity and simplicity, and desire for intellectual independence. Analyses of variances for each factor, using scores for Need for Cognition and Need for Cognitive Closure as independent variables, indicated that these two traits produce significant effects on information behavior. A significant main effect of Need for Cognition was observed for the orientation to rule following and the desire for intellectual independence. A significant main effect of Need for Cognition was observed for the preference for familiarity and simplicity. Lastly, a significant interaction effect between Need for Cognition and Need for Cognitive Closure was also observed for the desire for intellectual independence.
Information behavior of international students settling in an unfamiliar geo‐spatial environment
Authors: Oh Chi Young , Butler Brian S. , Lee Myeong 
Published: April 2015

ABSTRACTThis paper presents the findings from a project about how international students seek and acquire information during their settlement in an unknown geo‐spatial environment. Through semi‐structured interviews, questionnaires, and cognitive mapping with twenty international students, this study examines their information needs, information sources, and settlement experiences in the host country. Findings of the study include their (1) focus on acquiring basic, survival‐related information; (2) active use of internet‐based information sources including online/mobile maps; (3) information behavior of wandering around and information encountering; (4) co‐national social networks playing a key role as information sources. Implications are discussed in ways to further our understanding of international students’ information behavior and promote its improvement.
Find, identify, select…socialize?: Alternative objectives of library catalogs
Authors: Clarke Rachel Ivy 
Published: April 2015

ABSTRACTThroughout history, library catalogs have served various purposes, yet most formal statements of catalog objectives focus on inventory and holdings. As contemporary libraries face questions about the continued relevance of the library catalog, these purposes inspire reexamination. This poster presents a historical review of library catalogs with emphasis on purposes, as well as a review of proposals for alternatives to these extant objectives in order to inform future catalog design and library advocacy.
Data curation practices in institutional repositories: An exploratory study
Authors: Lee Dong Joon , Stvilia Besiki 
Published: April 2015

ABSTRACTThis poster reports on the preliminary findings of a study that examines data curation work in institutional repositories (IR). The study identified three perceived roles played by IR staff (i.e., data curator, IR manager, and metadata specialist) and role‐specific sets of activities and skills. The findings of this study can inform the development of best practices and effective infrastructure support for data curation in the context of IRs, as well as teaching data curation in LIS schools.
Impacts of social media usage on the outcomes of students’ everyday life information seeking
Authors: Sin Sei‐Ching Joanna , Kim Kyung‐Sun 
Published: April 2015

ABSTRACTUniversity students’ social media use for everyday life information seeking (ELIS) opens up opportunities for seeking information from weak ties, but it may exacerbate issues such as information overload. Currently, it is unclear whether social media use affects the outcome of ELIS. The current study surveyed undergraduate and graduate students to test whether the frequent uses of (a) social networking sites (SNS), (b) microblogs, (c) social question and answer sites (Social Q&A), and (d) Web search engines affect (a) level of satisfaction with the quality of ELIS results and (b) level of difficulty in ELIS. Gender and study level were included as control variables. ANOVA tests of the 1,144 responses found that the frequent use of SNS, microblogs, and Web search engines each had significant effects on ELIS satisfaction level. Frequent microblog use had a significant effect on ELIS difficulty. Interestingly, the effects of SNS, microblogs, and Web search engine usage showed a U‐shaped relationship. The heavy‐users as well as non‐users of social media experienced higher level of satisfaction and lower level of difficulties. It was the occasional users who were more troubled, as were underclassmen and master's students. These user groups could benefit from more social media information literacy training. The current study shows that social media use does make a difference in ELIS. Future studies may further test the influence of social media use on specific types of ELIS problems.
Online information seeking and knowledge sharing practices of science teachers
Authors: Khan Samia , Meyers Eric , Gowen Elise , Bergman Kendal 
Published: April 2015

ABSTRACTDespite a preponderance of research into student online information seeking behaviors, we still know precious little about the online information seeking of their teachers. Yet teachersare the ones who shape thecurriculum in the classroom and shape the way Information and Communication Technology (ICT) is utilized in formal learning contexts. Online information resources are particularly important for science teachers, who require sound, up‐to‐date knowledge in a field where new breakthroughs are always emerging. To better understand the way science teachers use and share information online, the research team performed five casestudies, followingfive science teachers’ online behaviors for their classroom practice over the course of three months, collecting initial data through aquestionnaire, two interviews, and longitudinal web histories. This study contributes to a broader understanding of information behavior of professional practice, and provides valuable information about an understudied group of users.
Diffusion of protest information in twitter during shahbag movement of bangladesh
Authors: Zamir Md Hassan 
Published: April 2015

ABSTRACTThe advent of social media and microblogging tools, particularly Twitter, has been used by the protesters during worldwide social movements as the means of organization, communication and diffusion of protest information. Key protesters play significant roles in the information diffusion process and influence the protest network by disseminating specific types of information. The focus of this work is to investigate how information diffusion takes place in Twitter during social movement. To understand the phenomenon, this poster analyses the tweets of Shahbag Movement of Bangladesh and seeks answers to these questions: who are the influential protesters, what are the properties of the protesters’ information sharing behavior. Ultimately, it is founded that the instrumental protesters represent the citizens, journalists and not the government officials. This poster also finds that the protesters demonstrate information cascade behavior during disseminating protest information into the network.
The dynamics of social capital in scientific collaboration networks
Authors: Costa Mark R. 
Published: April 2015

ABSTRACTScientific collaboration is considered a cornerstone of 21st Century Science and a springboard for economic prosperity. At a more basic level, it is also considered to be a fundamental part of the development of scientific human capital. From that perspective, scientific collaboration is facilitated through social capital, which is acquired through an investment cycle. Through a series of collaborative interactions, scientists move to positions within collaboration networks, which in turn creates future opportunities for collaboration.Prior research has either focused on the positioning of scientists within their respective networks, or scientists’ network activity and career stage, but few studies have looked at the dynamics of positioning due to the presence, timing, and sequencing of collaborative interactions on future opportunities. The reason for this gap was the intractability of the problem. In this paper, a research proposal is outlined that will attempt to address this deficiency by employing machine learning to identify patterns in the career trajectories of scientists in a research community.
“Making a square fit into a circle”: Researchers’ experiences reusing qualitative data
Authors: Yoon Ayoung 
Published: April 2015

ABSTRACTAlthough researchers have shown their skepticism of qualitative data reuse due to the epistemological issues, interest in qualitative data reuse has continuously grown. Discussions regarding qualitative data sharing and reuse have also been very active, especially in Europe and Australia. Compared with efforts in other countries, the discussions do not seem to be as prominent in the United States, in spite of a long history of data‐depositing and ‐curating practices and researchers’ reusing qualitative data in some disciplines. This research aims to explore qualitative researchers’ experiences reusing data in the field of social science in US, which have not been empirically addressed yet. The preliminary results from the in‐depth interviews with qualitative researchers who have used secondary data are presented, along with the barriers or hindrances to reusing qualitative data and the keys to successful data reuse.
A rigorous approach for selection of optimal variant sets for carrier screening with demonstration of clinical utility
Authors: Perreault‐Micale Cynthia , Davie Jocelyn , Breton Benjamin , Hallam Stephanie , Greger Valerie 
Published: April 2015

AbstractCarrier screening for certain diseases is recommended by major medical and Ashkenazi Jewish (AJ) societies. Most carrier screening panels test only for common, ethnic‐specific variants. However, with formerly isolated ethnic groups becoming increasingly intermixed, this approach is becoming inadequate. Our objective was to develop a rigorous process to curate all variants, for relevant genes, into a database and then apply stringent clinical validity classification criteria to each in order to retain only those with clear evidence for pathogenicity. The resulting variant set, in conjunction with next‐generation DNA sequencing (NGS), then affords the capability for an ethnically diverse, comprehensive, highly specific carrier‐screening assay. The clinical utility of our approach was demonstrated by screening a pan‐ethnic population of 22,864 individuals for Bloom syndrome carrier status using a BLM variant panel comprised of 50 pathogenic variants. In addition to carriers of the common AJ founder variant, we identified 57 carriers of other pathogenic BLM variants. All variants reported had previously been curated and their clinical validity documented, or were of a type that met our stringent, preassigned validity criteria. Thus, it was possible to confidently report an increased number of Bloom's syndrome carriers compared to traditional, ethnicity‐based screening, while not reducing the specificity of the screening due to reporting variants of unknown clinical significance.
Intravesical botulinum toxin‐A injections reduce bladder pain of interstitial cystitis/bladder pain syndrome refractory to conventional treatment – A prospective, multicenter, randomized, double‐blind, placebo‐controlled clinical trial
Authors: Kuo Hann‐Chorng , Jiang Yuan‐Hong , Tsai Yao‐Chou , Kuo Yuh‐Chen 
Published: April 2015

PurposeIntravesical onabotulinumtoxinA (BoNT‐A) injection is a beneficial treatment for interstitial cystitis/bladder pain syndrome (IC/BPS), yet its therapeutic efficacy remains to be validated. This study tests efficacy and safety of intravesical BoNT‐A injections for treatment of IC/BPS.Materials and MethodsA multicenter, randomized, double‐blind, placebo‐controlled trial in patients with IC/BPS refractory to conventional treatment. Patients were randomized in a 2:1 ratio to hydrodistention plus suburothelial injections of BoNT‐A 100 U (Botox group) or the equivalent amount of normal saline (N/S group). The primary endpoint was a decrease in pain assessed using a visual analog scale (VAS) at week 8 after treatment. Secondary endpoints included voiding diary and urodynamic variables. The Wilcoxon sign rank and rank sum tests were used for statistical analyses.ResultsA total of 60 patients (8 males, 52 females, age 50.8 ± 13.9 years) including 40 in the Botox and 20 in the N/S groups were enrolled. At week 8, a significantly greater reduction of pain was observed in the Botox group compared to the N/S group (−2.6 ± 2.8 vs. −0.9 ±  2.2, P = 0.021). The other variables did not differ significantly between groups except for cystometric bladder capacity, which was increased significantly in the Botox group. The overall success rates were 63% (26/40) in the Botox group and 15% (3/20) in the N/S group (P = 0.028). Adverse events did not differ between the groups.ConclusionIntravesical injections of 100 U of BoNT‐A effectively reduced bladder pain symptoms in patients with IC/BPS. The adverse events were acceptable. Neurourol. Urodynam. 35:609–614, 2016. © 2015 Wiley Periodicals, Inc.
Tainted museums: ‘selling out’ cultural institutions
Authors: Rodner Victoria L. , Preece Chloe 
Published: April 2015

This paper examines the role of museums as repositories of cultural meaning and symbolic capital. As educational and cultural institutions, museums serve to legitimise works of art within the frame of an art historical context. However, our comparative case study reveals how the taken‐for‐granted role of the museum as an allegedly unbiased platform for disseminating the arts can be usurped for economic or political ends. Using the cultural settings of the Hong Kong Museum of Art and the Venezuelan art museum circuit, we examine via our case studies how legitimation in the arts may be jeopardised or misused if and when cultural institutions succumb to commercial and political pressures. By adopting a qualitative research design, we observe the macro‐context in which institutional roles are defined and played out, and demonstrate the ideological discourses at play in the role of these cultural institutions as meaning‐makers. Although they may be presented as neutral spaces, museums inadvertently serve to circulate socio‐political views. How the institution manages these views and unavoidable macro‐level forces will in turn influence the cultural credibility of the museum framework as a legitimising force on the cultural horizon. Attention is devoted to how these pressures can affect the production and consumption of art, offering an alternative perspective on the development of museum policies.Copyright © 2015 John Wiley & Sons, Ltd.
Perceived Residential Environment Quality Indicators and neighborhood attachment: A confirmation study on a Chinese sample in Chongqing
Authors: Mao Yanhui , Fornara Ferdinando , Manca Sara , Bonnes Mirilia , Bonaiuto Marino 
Published: April 2015

AbstractThis paper concerns people's assessment of their neighborhood of residence in a Chinese urban context. The aim of the study was to verify the factorial structure and the reliability of two instruments originally developed and validated in Italy (the full versions of the Perceived Residential Environment Quality Indicators [PREQIs] and of the Neighborhood Attachment Scale [NAS]) in a different cultural and linguistic context. The instruments consist of 11 scales measuring the PREQIs and one scale measuring neighborhood attachment (NA). The PREQIs scales include items covering four macroevaluative domains of residential environment quality: architectural and urban planning aspects (three scales: Architectural and Town‐planning Space, Organization of Accessibility and Roads, Green Areas), sociorelational aspects (one scale: People and Social Relations), functional aspects (four scales: Welfare Services, Recreational Services, Commercial Services, and Transport Services), and contextual aspects (three scales: Pace of Life, Environmental Health, Upkeep and Care). The PREQIs and NAS were included in a self‐report questionnaire, which had been translated and back‐translated from English to Chinese, and was then administered to 340 residents in six districts (differing along various features) of a highly urbanized context in China, the city of Chongqing. Results confirmed the factorial structure of the scales and demonstrated good internal consistency of the indicators, thus reaffirming the results of previous studies carried out in Western urban contexts. The indicators tapping the neighborhood's contextual aspects (i.e., pace of life, environmental health, and upkeep) emerged as most correlated to NA.
Synthesis of partially fluorinated poly(arylene ether sulfone) multiblock copolymers bearing perfluorosulfonic functions
Authors: Assumma Luca , Iojoiu Cristina , Mercier Régis , Lyonnard Sandrine , Nguyen Huu Dat , Planes Emilie 
Published: April 2015

ABSTRACTPartially fluorinated poly(arylene ether sulfone) multiblock copolymers bearing perfluorosulfonic functions (ps‐PES‐FPES), with ionic exchange capacity (IEC) ranging between 0.9 and 1.5 meq H+/g, are synthesized by regioselective bromination of partially fluorinated poly(arylene ether sulfone) multiblock copolymers (PES‐FPES), followed by Ullman coupling reaction with lithium 1,1,2,2‐tetrafluoro‐2‐(1,1,2,2‐tetrafluoro‐2‐iodoethoxy)ethanesulfonate. The PES‐FPES are prepared by aromatic nucleophilic substitution reaction by an original approach, that is, “one pot two reactions synthesis.” The chemical structures of polymers are analyzed by 1H and 19F NMR spectroscopy. The resulted ionomers present two distinct glass transitions and α relaxations revealing phase separation between the hydrophilic and the hydrophobic domains. The phase separation is observed at much lower block lengths of ps‐PES‐FPES as compared with the literature. AFM and SANS observations supported the phase separation, the hydrophilic domains are well dispersed but the connectivity to each other depends on the ps‐PES block lengths. The thermomechanical behavior, the water up‐take, and the conductivity of the ps‐PES‐FPES membranes are compared with those of Nafion 117® and randomly functionalized polysulfone (ps‐PES). Conductivities close or higher to those of Nafion 117® are obtained. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2015, 53, 1941–1956
Energy transfer through heterogeneous dyes‐substituted fluorene‐containing alternating copolymers and their dual‐emission properties in the films
Authors: Yeo Hyeonuk , Tanaka Kazuo , Chujo Yoshiki 
Published: April 2015

ABSTRACTWe report synthesis of the modified fluorene polymers tethered to the heterogeneous types of the fluorescent dyes at the cardo carbon for obtaining the dual‐emissive solid materials. A series of the alternating fluorene copolymers modified with pyrene or 9,10‐diphenylanthracene and BODIPY at the cardo carbon based on the red‐emissive donor–acceptor structure were prepared, and their characteristics were examined. From the measurements of the optical properties, the energy transfer efficiencies were evaluated. In summary, variable energy transfer efficiencies were observed between the side chains and from the side chain to the main chain. It was indicated that the energy transfer efficiencies were strongly depended on the types of the energy donor and the detection conditions as such in the solution or film. Furthermore, it was found that the cardo fluorene units can contribute to the suppression of the energy transfer in the condensed state. Finally, the dual‐emissive polymers were obtained in the film states. This is the first example, to the best of our knowledge, not only to offer systematic information on the energy transfer between the dye molecules and the polymer main‐chains via the cardo structure but also to demonstrate the polymer‐based optical materials with the dual‐emission properties. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2015, 53, 2026–2035
Impedance spectroscopy study of phase transitions to ionic and superionic conductivity states in Ag2S and Ag2Se
Authors: Alekperov O. , Samedov O. , Paucar R. , Abdulzade N. , Nakhmedov E. , Nadjafov A. , Wakita K. , Mamedov N. 
Published: April 2015

AbstractThe percolation threshold (PT) temperatures Tc1,c2 of two non‐equivalent Ag+1,2 ions in Ag2S and Ag2Se lattices were determined from the temperature dependence of low‐frequency (25‐106Hz) impedance spectroscopy measurements. At PT temperatures Tc1≈200 K and Tc2≈ 334 K, an abrupt increase of the dielectric function ε1(ω) of Ag2Se crystal from a very large negative value, ε1 ≈‐109, to a very large positive value ε1≈ 106 was observed, which is assumed to result from the dipole relaxation. The strong peaks of the dielectric losses ε2(ω), tgδ(ω) and impedance Z in Ag2Se were also determined at Tc1,c2. Two significant peaks in ε1(ω), ε2(ω)and tgδ(ω) were observed at Tc1≈ 312‐320 K. and Tc2≈ 380‐430 K in the temperature dependences of these parameters. The measured parameters decreased significantly with increasing frequency, confirming the long relaxation times. The drastic decrease at T > 430 K of ε1from a very large positive value 109to a very large negative one ‐108 is in accordance with infrared (IR) ellipsometry measurements; this indicates that electrons of Ag+‐ ions are ionized because of the high dielectric function screening of lattice sites before the known β→α structural phase transition from monoclinic to a body‐centered cubic (bcc) structure. In addition, the activation energies of Ag+1,2 ions were estimated for Ag2S and Ag2Se crystals. (© 2015 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Development of double‐layer coupled coil for improving S/N in 7 T small‐animal MRI
Authors: Kim Kyoung‐Nam , Seo Jeung‐Hoon , Han Sang‐Doc , Heo Phil , Im Geun Ho , Lee Jung Hee 
Published: April 2015

SummaryThe purpose of this study was to develop a new double‐layer coupled (DLC) surface radiofrequency (RF) coil using a combination of single‐layer planar (SLP) and single‐layer circular (SLC) coils, for enhancement of magnetic flux (B1) sensitivity and RF penetration in 7 T rat‐body magnetic resonance imaging (MRI). The proposed DLC surface coil was fabricated according to an electromagnetic (EM) simulation and validated based on the B1 distribution and bench measurements. The DLC coil performance was quantitatively evaluated based on the signal‐to‐noise ratio (S/N) and coil–response signal intensity curves in phantom and in vivo rat‐body images. In the computational EM calculation and 7 T in vivo experimental results, the DLC surface coil clearly showed an increased S/N and higher RF transmit (B1+) profiles, compared to those of the SLP and SLC coils. While all surface coils displayed a rapid decrease in the MR signal from the near‐coil region to the subject, the results reveal that the DLC coil concept may be used to provide sufficient RF penetration and high S/N and degrees of freedom for use in partial body imaging for 7 T ultra‐high‐field small‐animal MRI. SCANNING 37:361–371, 2015. © 2015 Wiley Periodicals, Inc.