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https://www.readbyqxmd.com/read/28423840/discovering-central-practitioners-in-a-medical-discussion-forum-using-semantic-web-analytics
#1
Enayat Rajabi, Syed Sibte Raza Abidi
The aim of this paper is to investigate semantic web based methods to enrich and transform a medical discussion forum in order to perform semantics-driven social network analysis. We use the centrality measures as well as semantic similarity metrics to identify the most influential practitioners within a discussion forum. The centrality results of our approach are in line with centrality measures produced by traditional SNA methods, thus validating the applicability of semantic web based methods for SNA, particularly for analyzing social networks for specialized discussion forums...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28422961/characterization-of-the-mechanism-of-drug-drug-interactions-from-pubmed-using-mesh-terms
#2
Yin Lu, Bryan Figler, Hong Huang, Yi-Cheng Tu, Ju Wang, Feng Cheng
Identifying drug-drug interaction (DDI) is an important topic for the development of safe pharmaceutical drugs and for the optimization of multidrug regimens for complex diseases such as cancer and HIV. There have been about 150,000 publications on DDIs in PubMed, which is a great resource for DDI studies. In this paper, we introduced an automatic computational method for the systematic analysis of the mechanism of DDIs using MeSH (Medical Subject Headings) terms from PubMed literature. MeSH term is a controlled vocabulary thesaurus developed by the National Library of Medicine for indexing and annotating articles...
2017: PloS One
https://www.readbyqxmd.com/read/28409485/cohesion-network-analysis-of-cscl-participation
#3
Mihai Dascalu, Danielle S McNamara, Stefan Trausan-Matu, Laura K Allen
The broad use of computer-supported collaborative-learning (CSCL) environments (e.g., instant messenger-chats, forums, blogs in online communities, and massive open online courses) calls for automated tools to support tutors in the time-consuming process of analyzing collaborative conversations. In this article, the authors propose and validate the cohesion network analysis (CNA) model, housed within the ReaderBench platform. CNA, grounded in theories of cohesion, dialogism, and polyphony, is similar to social network analysis (SNA), but it also considers text content and discourse structure and, uniquely, uses automated cohesion indices to generate the underlying discourse representation...
April 13, 2017: Behavior Research Methods
https://www.readbyqxmd.com/read/28394157/mental-illness-disclosure-decision-making
#4
Rohini Pahwa, Anthony Fulginiti, John S Brekke, Eric Rice
Disclosure related to mental illness has been linked to various positive outcomes, including better mental health. However, many individuals with serious mental illness (SMI) continue to practice non-disclosure. Even though disclosure inherently occurs within the context of one's social relationships, research has generally conceptualized mental illness disclosure as an individual level phenomenon and neglected to consider preferences concerning to whom an individual discloses and the factors that influence this decision...
April 10, 2017: American Journal of Orthopsychiatry
https://www.readbyqxmd.com/read/28394144/first-selection-then-influence-developmental-differences-in-friendship-dynamics-regarding-academic-achievement
#5
Mariola Claudia Gremmen, Jan Kornelis Dijkstra, Christian Steglich, René Veenstra
This study concerns peer selection and influence dynamics in early adolescents' friendships regarding academic achievement. Using longitudinal social network analysis (RSiena), both selection and influence processes were investigated for students' average grades and their cluster-specific grades (i.e., language, exact, and social cluster). Data were derived from the SNARE (Social Network Analysis of Risk behavior in Early adolescence) study, using 6 waves (N = 601; Mage = 12.66, 48.9% boys at first wave). Results showed developmental differences between the first and second year of secondary school (seventh and eighth grade)...
April 10, 2017: Developmental Psychology
https://www.readbyqxmd.com/read/28390418/joining-the-dots-the-role-of-brokers-in-nutrition-policy-in-australia
#6
Katherine Cullerton, Timothy Donnet, Amanda Lee, Danielle Gallegos
BACKGROUND: Poor diet is the leading preventable risk factor contributing to the burden of disease in Australia. A range of cost-effective, comprehensive population-focussed strategies are available to address these dietary-related diseases. However, despite evidence of their effectiveness, minimal federal resources are directed to this area. To better understand the limited public health nutrition policy action in Australia, we sought to identify the key policy brokers in the Australian nutrition policy network and consider their level of influence over nutrition policymaking...
April 8, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28344853/snap-a-general-purpose-network-analysis-and-graph-mining-library
#7
Jure Leskovec, Rok Sosič
Large networks are becoming a widely used abstraction for studying complex systems in a broad set of disciplines, ranging from social network analysis to molecular biology and neuroscience. Despite an increasing need to analyze and manipulate large networks, only a limited number of tools are available for this task. Here, we describe Stanford Network Analysis Platform (SNAP), a general-purpose, high-performance system that provides easy to use, high-level operations for analysis and manipulation of large networks...
October 2016: ACM Transactions on Intelligent Systems and Technology
https://www.readbyqxmd.com/read/28341927/optimal-network-for-patients-with-severe-mental-illness-a-social-network-analysis
#8
Vincent Lorant, James Nazroo, Pablo Nicaise
It is still unclear what the optimal structure of mental health care networks should be. We examine whether certain types of network structure have been associated with improved continuity of care and greater social integration. A social network survey was carried out, covering 954 patients across 19 mental health networks in Belgium in 2014. We found continuity of care to be associated with large, centralized, and homophilous networks, whereas social integration was associated with smaller, centralized, and heterophilous networks...
March 24, 2017: Administration and Policy in Mental Health
https://www.readbyqxmd.com/read/28334802/engagement-strategies-that-foster-community-self-determination-in-participatory-research-insider-ownership-through-outsider-championship
#9
Jon Salsberg, Soultana Macridis, Enrique Garcia Bengoechea, Ann C Macaulay, Spencer Moore
Background.: In order to maximize the benefits of community-based participatory research, effective ownership over the research process must be at least equally in the hands of the community. A previous social network analysis documented that the participatory research process shifted ownership from academic to community partners, but did not show what actions and strategies fostered this shift. Objectives.: This study follows the trajectory of a community-academic partnership and asks, from the perspective of the project stakeholders, which actions and strategies over the lifespan of the research led to the observed shift in ownership and decision-making from the original external academics to the community stakeholders? Methods...
February 18, 2017: Family Practice
https://www.readbyqxmd.com/read/28334748/the-shifting-dynamics-of-social-roles-and-project-ownership-over-the-lifecycle-of-a-community-based-participatory-research-project
#10
Jon Salsberg, Soultana Macridis, Enrique Garcia Bengoechea, Ann C Macaulay, Spencer Moore
Background: . Community based participatory research (CBPR) is often initiated by academic researchers, yet relies on meaningful community engagement and ownership to have lasting impact. Little is understood about how ownership shifts from academic to community partners. Objectives: . We examined a CBPR project over its life course and asked: what does the evolution of ownership look like from project initiation by an academic (non-community) champion (T1); to maturation-when the intervention is ready to be deployed (T2); to independence-the time when the original champion steps aside (T3); and finally, to its maintenance-when the community has had an opportunity to function independently of the original academic champion (T4)? Methods: ...
February 21, 2017: Family Practice
https://www.readbyqxmd.com/read/28333366/peer-influence-on-ethnic-racial-identity-development-a-multi-site-investigation
#11
Carlos E Santos, Olga Kornienko, Deborah Rivas-Drake
The peer context features prominently in theory, and increasingly in empirical research, about ethnic-racial identity (ERI) development, but no studies have assessed peer influence on ERI using methods designed to properly assess peer influence. We examined peer influence on ERI centrality, private, and public regard using longitudinal social network analysis. Data were drawn from two sites: a predominantly Latina/o Southwestern (SW) school (N = 1034; Mage = 12.10) and a diverse Midwestern (MW) school (N = 513; Mage = 11...
March 23, 2017: Child Development
https://www.readbyqxmd.com/read/28332293/beyond-the-dyadic-perspective-10-reasons-for-using-social-network-analysis-in-intergroup-contact-research
#12
Ralf Wölfer, Miles Hewstone
This article presents 10 reasons why social network analysis, a novel but still surprisingly underused approach in social psychology, can advance the analysis of intergroup contact. Although intergroup contact has been shown to improve intergroup relations, conventional methods leave some questions unanswered regarding the underlying social mechanisms that facilitate social cohesion between different groups in increasingly diverse societies. We will therefore explain the largely unknown conceptual and methodological advantages of social network analysis for studying intergroup contact in naturally existing groups, which are likely to help contact researchers to gain a better understanding of intergroup relations and guide attempts to overcome segregation, prejudice, discrimination, and intergroup conflict...
March 23, 2017: British Journal of Social Psychology
https://www.readbyqxmd.com/read/28323851/the-effect-of-excluding-juveniles-on-apparent-adult-olive-baboons-papio-anubis-social-networks
#13
Piotr Fedurek, Julia Lehmann
In recent years there has been much interest in investigating the social structure of group living animals using social network analysis. Many studies so far have focused on the social networks of adults, often excluding younger, immature group members. This potentially may lead to a biased view of group social structure as multiple recent studies have shown that younger group members can significantly contribute to group structure. As proof of the concept, we address this issue by investigating social network structure with and without juveniles in wild olive baboons (Papio anubis) at Gashaka Gumti National Park, Nigeria...
2017: PloS One
https://www.readbyqxmd.com/read/28319783/development-of-an-evaluation-framework-for-publicly-funded-r-d-projects-the-case-of-korea-s-next-generation-network
#14
Eungdo Kim, Soyoung Kim, Hongbum Kim
For decades, efforts have been made globally to measure the performance of large-scale public projects and to develop a framework to perform such measurements due to the complexity and dynamics of R&D and stakeholder interests. Still, limitations such as the use of a simply modified model and the lack of a comprehensive viewpoint are prevalent in existing approaches. In light of these research gaps, this study suggests a practical model to evaluate the performance of large-scale and publicly funded projects...
February 28, 2017: Evaluation and Program Planning
https://www.readbyqxmd.com/read/28316541/the-structure-and-effectiveness-of-health-systems-exploring-the-impact-of-system-integration-in-rural-china
#15
Xin Wang, Stephen Birch, Huifen Ma, Weiming Zhu, Qingyue Meng
INTRODUCTION: Facing the challenges of aging populations, increasing chronic diseases prevalence and health system fragmentation, there have been several pilots of integrated health systems in China. But little is known about their structure, mechanism and effectiveness. The aim of this paper is to analyze health system integration and develop recommendations for achieving integration. METHOD: Huangzhong and Hualong counties in Qinghai province were studied as study sites, with only Huangzhong having implemented health system integration...
August 12, 2016: International Journal of Integrated Care
https://www.readbyqxmd.com/read/28298593/learning-and-robustness-to-catch-and-release-fishing-in-a-shark-social-network
#16
Johann Mourier, Culum Brown, Serge Planes
Individuals can play different roles in maintaining connectivity and social cohesion in animal populations and thereby influence population robustness to perturbations. We performed a social network analysis in a reef shark population to assess the vulnerability of the global network to node removal under different scenarios. We found that the network was generally robust to the removal of nodes with high centrality. The network appeared also highly robust to experimental fishing. Individual shark catchability decreased as a function of experience, as revealed by comparing capture frequency and site presence...
March 2017: Biology Letters
https://www.readbyqxmd.com/read/28294446/nursing-teams-behind-the-charts
#17
Sung-Heui Bae, Alireza Farasat, Alex Nikolaev, Jin Young Seo, Kelly Foltz-Ramos, Donna Fabry, Jessica Castner
AIMS: To examine the nature and characteristics of both received and provided mutual support in a social network within an acute care hospital unit. BACKGROUND: Current evidence regarding the social network in the health care workforce reveals the nature of social ties. Most studies of social network-related support that measured the characteristics of social support used self-reported perception from workers receiving support. There is a gap in studies that focus on back-up behaviour...
March 12, 2017: Journal of Nursing Management
https://www.readbyqxmd.com/read/28289044/exploiting-social-influence-to-magnify-population-level-behaviour-change-in-maternal-and-child-health-study-protocol-for-a-randomised-controlled-trial-of-network-targeting-algorithms-in-rural-honduras
#18
Holly B Shakya, Derek Stafford, D Alex Hughes, Thomas Keegan, Rennie Negron, Jai Broome, Mark McKnight, Liza Nicoll, Jennifer Nelson, Emma Iriarte, Maria Ordonez, Edo Airoldi, James H Fowler, Nicholas A Christakis
INTRODUCTION: Despite global progress on many measures of child health, rates of neonatal mortality remain high in the developing world. Evidence suggests that substantial improvements can be achieved with simple, low-cost interventions within family and community settings, particularly those designed to change knowledge and behaviour at the community level. Using social network analysis to identify structurally influential community members and then targeting them for intervention shows promise for the implementation of sustainable community-wide behaviour change...
March 13, 2017: BMJ Open
https://www.readbyqxmd.com/read/28273268/-methodological-novelties-applied-to-the-anthropology-of-food-agent-based-models-and-social-networks-analysis
#19
Diego Díaz Córdova
The aim of this article is to introduce two methodological strategies that have not often been utilized in the anthropology of food: agent-based models and social networks analysis. In order to illustrate these methods in action, two cases based in materials typical of the anthropology of food are presented. For the first strategy, fieldwork carried out in Quebrada de Humahuaca (province of Jujuy, Argentina) regarding meal recall was used, and for the second, elements of the concept of "domestic consumption strategies" applied by Aguirre were employed...
October 2016: Salud Colectiva
https://www.readbyqxmd.com/read/28245697/no-man-is-an-island-another-worthwhile-approach-to-the-study-of-mental-disorders-using-social-network-analysis
#20
Menachem Ben-Ezra
No abstract text is available yet for this article.
March 1, 2017: American Journal of Psychiatry
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