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"Social network analysis"

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https://www.readbyqxmd.com/read/28637228/application-of-social-network-analysis-in-the-assessment-of-organization-infrastructure-for-service-delivery-a-three-district-case-study-from-post-conflict-northern-uganda
#1
Freddie Ssengooba, Vincent Kawooya, Justine Namakula, Suzanne Fustukian
In post-conflict settings, service coverage indices are unlikely to be sustained if health systems are built on weak and unstable inter-organization networks-here referred to as infrastructure. The objective of this study was to assess the inter-organization infrastructure that supports the provision of selected health services in the reconstruction phase after conflict in northern Uganda. Applied social network analysis was used to establish the structure, size and function among organizations supporting the provision of (1) HIV treatment, (2) maternal delivery services and (3) workforce strengthening...
June 16, 2017: Health Policy and Planning
https://www.readbyqxmd.com/read/28628618/solving-the-influence-maximization-problem-reveals-regulatory-organization-of-the-yeast-cell-cycle
#2
David L Gibbs, Ilya Shmulevich
The Influence Maximization Problem (IMP) aims to discover the set of nodes with the greatest influence on network dynamics. The problem has previously been applied in epidemiology and social network analysis. Here, we demonstrate the application to cell cycle regulatory network analysis for Saccharomyces cerevisiae. Fundamentally, gene regulation is linked to the flow of information. Therefore, our implementation of the IMP was framed as an information theoretic problem using network diffusion. Utilizing more than 28,000 regulatory edges from YeastMine, gene expression dynamics were encoded as edge weights using time lagged transfer entropy, a method for quantifying information transfer between variables...
June 19, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28624635/identification-and-interaction-of-multiple-stressors-in-central-european-lowland-rivers
#3
Jan U Lemm, Christian K Feld
Interactions of multiple stressors in lotic systems have received growing interest and have been analysed in a growing number of studies using experiment and survey data. In this study, we present a protocol to identify, display and analyse stressors of rivers and their interactions (additive, synergistic or antagonistic). We used a dataset of 125 samples of central European lowland rivers comprising hydromorphological, physico-chemical and land use stressor and pressure variables as well as benthic macroinvertebrate traits as biological response variables...
June 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28616413/the-condition-of-interdisciplinary-communication-among-various-educational-and-research-departments-of-isfahan-university-of-medical-sciences
#4
Elaheh Mazaheri, Ehsan Geraei, Firoozeh Zare-Farashbandi, Ahmad Papi
BACKGROUND: The study aimed to assess interdisciplinary communication among various Educational and Research Departments of Isfahan University of Medical Sciences (IUMS) in clinical medical sciences using social network analysis. MATERIALS AND METHODS: The study was carried out using scientometrics method and interdisciplinary communication network analysis. Interdisciplinary network of 1298 articles in medical sciences published in Journal of Isfahan Medical School was evaluated using macro- and micro-level criteria of network analysis...
2017: Journal of Education and Health Promotion
https://www.readbyqxmd.com/read/28615950/utilizing-big-data-and-twitter-to-discover-emergent-online-communities-of-cannabis-users
#5
Peter Baumgartner, Nicholas Peiper
Large shifts in medical, recreational, and illicit cannabis consumption in the United States have implications for personalizing treatment and prevention programs to a wide variety of populations. As such, considerable research has investigated clinical presentations of cannabis users in clinical and population-based samples. Studies leveraging big data, social media, and social network analysis have emerged as a promising mechanism to generate timely insights that can inform treatment and prevention research...
2017: Substance Abuse: Research and Treatment
https://www.readbyqxmd.com/read/28605631/care-coordination-in-epilepsy-measuring-neurologists-connectivity-using-social-network-analysis
#6
Hamada Hamid Altalib, Brenda T Fenton, Kei-Hoi Cheung, Mary Jo V Pugh, Jonathan Bates, Thomas W Valente, Robert D Kerns, Cynthia A Brandt
OBJECTIVE: The study sought to quantify coordination of epilepsy care, over time, between neurologists and other health care providers using social network analysis (SNA). METHODS: The Veterans Health Administration (VA) instituted an Epilepsy Center of Excellence (ECOE) model in 2008 to enhance care coordination between neurologists and other health care providers. Provider networks in the 16 VA ECOE facilities (hub sites) were compared to a subset of 33 VA facilities formally affiliated (consortium sites) and 14 unaffiliated VA facilities...
June 9, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28599000/modeling-the-live-pig-trade-network-in-georgia-implications-for-disease-prevention-and-control
#7
Esther Andrea Kukielka, Beatriz Martínez-López, Daniel Beltrán-Alcrudo
Live pig trade patterns, drivers and characteristics, particularly in backyard predominant systems, remain largely unexplored despite their important contribution to the spread of infectious diseases in the swine industry. A better understanding of the pig trade dynamics can inform the implementation of risk-based and more cost-effective prevention and control programs for swine diseases. In this study, a semi-structured questionnaire elaborated by FAO and implemented to 487 farmers was used to collect data regarding basic characteristics about pig demographics and live-pig trade among villages in the country of Georgia, where very scarce information is available...
2017: PloS One
https://www.readbyqxmd.com/read/28596149/measuring-audience-engagement-for-public-health-twitter-chats-insights-from-livefitnola
#8
Kristina M Rabarison, Merriah A Croston, Naomi K Englar, Connie L Bish, Shelbi M Flynn, Carolyn C Johnson
BACKGROUND: Little empirical evidence exists on the effectiveness of using Twitter as a two-way communication tool for public health practice, such as Twitter chats. OBJECTIVE: We analyzed whether Twitter chats facilitate engagement in two-way communications between public health entities and their audience. We also describe how to measure two-way communications, incoming and outgoing mentions, between users in a protocol using free and publicly available tools (Symplur, OpenRefine, and Gephi)...
June 8, 2017: JMIR Public Health and Surveillance
https://www.readbyqxmd.com/read/28585009/a-bibliometric-analysis-of-eutrophication-literatures-an-expanding-and-shifting-focus
#9
Xia Li, Ruiqi Nan
This paper examined the eutrophication literatures from 1998 to 2015 using bibliometric techniques basing on the database of Science Citation Index. Bibliometric techniques, social network analysis, and mapping knowledge domains in this paper were used. The results revealed that article was the most used document type accounting for 94.79% (14,006) of the records. With the rapid development of eutrophication domain after 2004, the annual article publishing amount also grew notably in each country, with the list of US tops...
June 5, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28576290/comparing-acceptance-and-rejection-in-the-classroom-interaction-of-students-who-stutter-and-their-peers-a-social-network-analysis
#10
Stefanie Adriaensens, Sara Van Waes, Elke Struyf
PURPOSE: Recent work has reported adverse effects of students' stuttering on their social and emotional functioning at school. Yet, few studies have provided an in-depth examination of classroom interaction of students who stutter (SWS). The current study uses a network perspective to compare acceptance and rejection in the classroom interaction between SWS and their peers in secondary education. METHODS: The sample comprised 22 SWS and 403 non-stuttering peers (22 classes) of secondary education in Flanders (Belgium)...
June 2017: Journal of Fluency Disorders
https://www.readbyqxmd.com/read/28568480/identifying-influential-individuals-on-intensive-care-units-using-cluster-analysis-to-explore-culture
#11
Allan Fong, Lindsey Clark, Tianyi Cheng, Ella Franklin, Nicole Fernandez, Raj Ratwani, Sarah Henrickson Parker
AIM: The objective of this paper is to identify attribute patterns of influential individuals in intensive care units using unsupervised cluster analysis. BACKGROUND: Despite the acknowledgement that culture of an organisation is critical to improving patient safety, specific methods to shift culture have not been explicitly identified. METHODS: A social network analysis survey was conducted and an unsupervised cluster analysis was used. RESULTS: A total of 100 surveys were gathered...
June 1, 2017: Journal of Nursing Management
https://www.readbyqxmd.com/read/28538231/informal-peer-assisted-learning-groups-did-not-lead-to-better-performance-of-saudi-dental-students
#12
Maha AbdelSalam, Maha El Tantawi, Asim Al-Ansari, Adel AlAgl, Fahad Al-Harbi
OBJECTIVES: To describe peer-assisted learning (PAL) groups formed by dental undergraduate students in a biomedical course and investigate the association of individual and group characteristics with academic performance. SUBJECTS AND METHODS: In 2015, 92 4th yr. students (males: 43; females: 49) in the College of Dentistry, University of Dammam, Saudi Arabia were invited to form PAL groups to study a unit in a biomedical course. An examination was used to assess their knowledge after two weeks...
May 23, 2017: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
https://www.readbyqxmd.com/read/28529537/a-web-based-tool-for-automatic-data-collection-curation-and-visualization-of-complex-healthcare-survey-studies-including-social-network-analysis
#13
José Alberto Benítez, José Emilio Labra, Enedina Quiroga, Vicente Martín, Isaías García, Pilar Marqués-Sánchez, Carmen Benavides
There is a great concern nowadays regarding alcohol consumption and drug abuse, especially in young people. Analyzing the social environment where these adolescents are immersed, as well as a series of measures determining the alcohol abuse risk or personal situation and perception using a number of questionnaires like AUDIT, FAS, KIDSCREEN, and others, it is possible to gain insight into the current situation of a given individual regarding his/her consumption behavior. But this analysis, in order to be achieved, requires the use of tools that can ease the process of questionnaire creation, data gathering, curation and representation, and later analysis and visualization to the user...
2017: Computational and Mathematical Methods in Medicine
https://www.readbyqxmd.com/read/28527377/fishing-for-leadership-the-role-diversification-plays-in-facilitating-change-agents
#14
Joshua S Stoll
Leadership is often viewed as being critical to successful natural resource management. This research focuses on a set of leaders identified through a social network analysis of fishers in a rural coastal region. Leaders' connections to different fisheries are evaluated, and these actors are found to be significantly more diversified than other fishers in the area. Drawing on theory related to institutional entrepreneurship and a series of in-depth interviews with these actors, this paper puts forward several hypotheses to explain how diverse social-ecological connections facilitate leadership...
September 1, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28523205/2016-year-in-review-of-clinical-and-consumer-informatics-analysis-and-visualization-of-keywords-and-topics
#15
REVIEW
Hyeoun-Ae Park, Joo Yun Lee, Jeongah On, Ji Hyun Lee, Hyesil Jung, Seul Ki Park
OBJECTIVES: The objective of this study was to review and visualize the medical informatics field over the previous 12 months according to the frequencies of keywords and topics in papers published in the top four journals in the field and in Healthcare Informatics Research (HIR), an official journal of the Korean Society of Medical Informatics. METHODS: A six-person team conducted an extensive review of the literature on clinical and consumer informatics. The literature was searched using keywords employed in the American Medical Informatics Association year-in-review process and organized into 14 topics used in that process...
April 2017: Healthcare Informatics Research
https://www.readbyqxmd.com/read/28502399/user-roles-and-contributions-during-the-new-product-development-process-in-collaborative-innovation-communities
#16
Wei Guo, Qing Zheng, Weijin An, Wei Peng
Collaborative innovation (co-innovation) community emerges as a new product design platform where companies involve users in the new product development (NPD) process. Large numbers of users participate and contribute to the process voluntarily. This exploratory study investigates the heterogeneous roles of users based on a global co-innovation project in online community. Content analysis, social network analysis and cluster method are employed to measure user behaviors, distinguish user roles, and analyze user contributions...
September 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28499282/can-social-network-analysis-help-address-the-high-rates-of-bacterial-sexually-transmitted-infections-in-saskatchewan
#17
Molly A Trecker, Jo-Anne R Dillon, Kathy Lloyd, Maurice Hennink, Ann Jolly, Cheryl Waldner
BACKGROUND: Saskatchewan has one of the highest rates of gonorrhea among the Canadian provinces-more than double the national rate. In light of these high rates, and the growing threat of untreatable infections, improved understanding of gonorrhea transmission dynamics in the province and evaluation of the current system and tools for disease control are important. METHODS: We extracted data from a cross-sectional sample of laboratory-confirmed gonorrhea cases between 2003 and 2012 from the notifiable disease files of the Regina Qu'Appelle Health Region...
June 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28479670/fishing-in-the-amazonian-forest-a-gendered-social-network-puzzle
#18
I Díaz-Reviriego, Á Fernández-Llamazares, P L Howard, J L Molina, V Reyes-García
We employ social network analysis (SNA) to describe the structure of subsistence fishing social networks and to explore the relation between fishers' emic perceptions of fishing expertise and their position in networks. Participant observation and quantitative methods were employed among the Tsimane' Amerindians of the Bolivian Amazonia. A multiple regression quadratic assignment procedure was used to explore the extent to which gender, kinship, and age homophilies influence the formation of fishing networks...
2017: Society & Natural Resources
https://www.readbyqxmd.com/read/28467267/saving-my-life-dynamics-of-peer-and-staff-corrections-among-therapeutic-community-residents
#19
Nathan J Doogan, Keith L Warren
BACKGROUND: Therapeutic communities (TCs) maintain order and encourage behavior change through a system of peer corrections. This study is the first quantitative analysis of the dynamics of the exchange of peer corrections at TCs. OBJECTIVES: We applied longitudinal social network analysis to compare the reactions of TC residents to peer versus staff intervention, while analyzing dynamics of correction exchange among residents. METHOD: The data consisted of a large database of staff and peer affirmations and corrections at four therapeutic community units that occurred between the years 2006 and 2008...
May 3, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/28464245/social-networks-dynamics-revealed-by-temporal-analysis-an-example-in-a-non-human-primate-macaca-sylvanus-in-la-for%C3%A3%C2%AAt-des-singes
#20
Sebastian Sosa, Peng Zhang, Guénaël Cabanes
This study applied a temporal social network analysis model to describe three affiliative social networks (allogrooming, sleep in contact, and triadic interaction) in a non-human primate species, Macaca sylvanus. Three main social mechanisms were examined to determine interactional patterns among group members, namely preferential attachment (i.e., highly connected individuals are more likely to form new connections), triadic closure (new connections occur via previous close connections), and homophily (individuals interact preferably with others with similar attributes)...
June 2017: American Journal of Primatology
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