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"Social network analysis"

Paul Monsarrat, Philippe Kemoun, Jean-Noel Vergnes, Luc Sensebe, Louis Casteilla, Valerie Planat-Benard
BACKGROUND AIMS: Using innovative tools derived from social network analysis, the aims of this study were (i) to decipher the spatial and temporal structure of the research centers network dedicated to the therapeutic uses of mesenchymal stromal cells (MSCs) and (ii) to measure the influence of fields of applications, cellular sources and industry funding on network topography. METHODS: From each trial using MSCs reported on, all research centers were extracted...
October 17, 2016: Cytotherapy
Scott Winch, Nageen Ahmed, Christopher Rissel, Michelle Maxwell, Joanna Coutts, Kerri Lucas
The aim of the present paper was to explore how social networks enable dissemination of health information within two Aboriginal communities in New South Wales. The study design was modelled on a social network analysis socio-centric model. Data collection was conducted primarily by Aboriginal community members who were trained as community researchers. Participants reported on their patterns of interaction and who they provided or received health information from, and awareness of the Aboriginal Enhancement of the Get Healthy Information and Coaching Service...
October 19, 2016: Australian Journal of Primary Health
Xi-Ran He, Chun-Guang Li, Xiao-Shu Zhu, Yuan-Qing Li, Mariam Jarouche, Alan Bensoussan, Ping-Ping Li
There is a recognized challenge in analyzing traditional Chinese medicine formulas because of their complex chemical compositions. The application of modern analytical techniques such as high-performance liquid chromatography coupled with a tandem mass spectrometry has improved the characterization of various compounds from traditional Chinese medicine formulas significantly. This study aims to conduct a bibliometric analysis to recognize the overall trend of high-performance liquid chromatography coupled with tandem mass spectrometry approaches in the analysis of traditional Chinese medicine formulas, its significance and possible underlying interactions between individual herbs in these formulas...
October 12, 2016: Journal of Separation Science
K Cullerton, T Donnet, A Lee, D Gallegos
The food industry is often described as having more power and influence in nutrition policymaking than nutrition professionals, scientists and other practitioners working for the public interest; yet authors often allude to this point as an assumed truth, rather than an evidence-based fact. This paper applies social network analysis techniques to provide a concise evidence-based demonstration of the food industry's capacity to influence nutrition policymaking networks in Australia. Network analysis using four rounds of data collection was undertaken, and the capacity of individual actors and occupational categories to influence policy decision makers were analysed...
October 5, 2016: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
Janet Klara Djomba, Lijana Zaletel-Kragelj
INTRODUCTION: Research on social networks in public health focuses on how social structures and relationships influence health and health-related behaviour. While the sociocentric approach is used to study complete social networks, the egocentric approach is gaining popularity because of its focus on individuals, groups and communities. METHODS: One of the participants of the healthy lifestyle health education workshop 'I'm moving', included in the study of social support for exercise was randomly selected...
December 1, 2016: Zdravstveno Varstvo
Lusine Poghosyan, Robert J Lucero, Ashley R Knutson, Mark W Friedberg, Hermine Poghosyan
Purpose The purpose of this paper is to synthesize existing evidence regarding health care team networks, including their formation and association with outcomes in various health care settings. Design/methodology/approach Network theory informed this review. A literature search was conducted in major databases for studies that used social network analysis methods to study health care teams in the USA between 2000 and 2014. Retrieved studies were reviewed against inclusion and exclusion criteria. Findings Overall, 25 studies were included in this review...
October 10, 2016: Journal of Health Organization and Management
Vincent Lorant, Victoria Soto Rojas, Laia Bécares, Jaana M Kinnunen, Mirte A G Kuipers, Irene Moor, Gaetano Roscillo, Joana Alves, Adeline Grard, Arja Rimpelä, Bruno Federico, Matthias Richter, Julian Perelman, Anton E Kunst
BACKGROUND: Social integration and the health of adolescents with a migration background is a major concern in multicultural societies. The literature, however, has paid little attention to the wider determinants of their health behaviours, including the composition of their social networks. The aim of this study was to describe the composition of adolescents' social networks according to migration background, and to examine how social networks are associated with substance use. METHOD: In 2013, the SILNE study surveyed 11,015 secondary-school adolescents in 50 schools in six European cities in Belgium, Finland, Germany, Italy, the Netherlands, and Portugal, using a social network design...
September 21, 2016: Social Science & Medicine
Danielle E Haulsee, Dewayne A Fox, Matthew W Breece, Lori M Brown, Jeff Kneebone, Gregory B Skomal, Matthew J Oliver
Complex social networks and behaviors are difficult to observe for free-living marine species, especially those that move great distances. Using implanted acoustic transceivers to study the inter- and intraspecific interactions of sand tiger sharks Carcharias taurus, we observed group behavior that has historically been associated with higher order mammals. We found evidence strongly suggestive of fission-fusion behavior, or changes in group size and composition of sand tigers, related to five behavioral modes (summering, south migration, community bottleneck, dispersal, north migration)...
September 30, 2016: Scientific Reports
Lun Li, Ferrán Catalá-López, Adolfo Alonso-Arroyo, Jinhui Tian, Rafael Aleixandre-Benavent, Dawid Pieper, Long Ge, Liang Yao, Quan Wang, Kehu Yang
BACKGROUND AND OBJECTIVE: Research collaborations in biomedical research have evolved over time. No studies have addressed research collaboration in network meta-analysis (NMA). In this study, we used social network analysis methods to characterize global collaboration patterns of published NMAs over the past decades. METHODS: PubMed, EMBASE, Web of Science and the Cochrane Library were searched (at 9th July, 2015) to include systematic reviews incorporating NMA...
2016: PloS One
Ralf Wölfer, Katharina Schmid, Miles Hewstone, Maarten van Zalk
Intergroup contact represents a powerful way to improve intergroup attitudes and to overcome prejudice and discrimination. However, long-term effects of intergroup contact that consider social network dynamics have rarely been studied at a young age. Study 1 validated an optimized social network approach to investigate intergroup contact (N = 6,457; Mage  = 14.91 years). Study 2 explored the developmental trajectories of intergroup contact by applying this validated network approach in a cross-sequential design (four-cohort-four-wave; N = 3,815; 13-26 years)...
September 2016: Child Development
Damon A Lowes, Helen F Galley, Alessandro P S Moura, Nigel R Webster
Much is still unknown about the mechanisms of effects of even brief anaesthesia on the brain and previous studies have simply compared differential expression profiles with and without anaesthesia. We hypothesised that network analysis, in addition to the traditional differential gene expression and ontology analysis, would enable identification of the effects of anaesthesia on interactions between genes. Rats (n=10 per group) were randomised to anaesthesia with isoflurane in oxygen or oxygen only for 15min, and 6h later brains were removed...
September 19, 2016: Behavioural Brain Research
Anna Ilona Roberts, Sam George Bradley Roberts
Primates form strong and enduring social bonds with others and these bonds have important fitness consequences. However, how different types of communication are associated with different types of social bonds is poorly understood. Wild chimpanzees have a large repertoire of gestures, from visual gestures to tactile and auditory gestures. We used social network analysis to examine the association between proximity bonds (time spent in close proximity) and rates of gestural communication in pairs of chimpanzees when the intended recipient was within 10 m of the signaller...
2016: Scientific Reports
Jia B Kangbai
OBJECTIVE: To explore and visualize the connectivity of suspected Ebola cases and surveillance callers who used cellphone technology in Moyamba District in Sierra Leone for Ebola surveillance, and to examine the demographic differences and characteristics of Ebola surveillance callers who make more calls as well as those callers who are more likely to make at least one positive Ebola call. METHODS: Surveillance data for 393 suspected Ebola cases (192 males, 201 females) were collected from October 23, 2014 to June 28, 2015 using cellphone technology...
September 2016: Asian Pacific Journal of Tropical Medicine
Carlene J Wilson, Kayla de la Haye, John Coveney, Donna L Hughes, Amanda Hutchinson, Caroline Miller, Ivanka Prichard, Paul Ward, Laura M Koehly
BACKGROUND: Common disease risk clusters in families due to shared genetics, exposure to environmental risk factors, and because many health behaviours are established and maintained in family environments. This randomised controlled trial will test whether the provision of a family health history (FHH) risk assessment tool increases intentions and engagement in health behaviors. Message distribution and collective behavior change within family networks will be mapped using social network analysis...
2016: BMC Public Health
Jennifer J Palmer, Alice Gilbert, Michelle Choy, Karl Blanchet
BACKGROUND: Little is known about the contributions of faith-based organisations (FBOs) to health systems in Africa. In the specialist area of eye health, international and domestic Christian FBOs have been important contributors as service providers and donors, but they are also commonly critiqued as having developed eye health systems parallel to government structures which are unsustainable. METHODS: In this study, we use a health systems approach (quarterly interviews, a participatory sustainability analysis exercise and a social network analysis) to describe the strategies used by eye care practitioners in four hospitals of north-west Tanzania to navigate the government, church mission and donor rules that govern eye services delivery there...
2016: Health Research Policy and Systems
Jianjun Wang, Theresa Ortiz, Diana Navarro, Roland Maier, Summer Wang, Lisa Wang, Libing Wang
The first five years were recognized as a critical period of child growth. Accordingly, California voters approved tobacco tax through Proposition 10 to fund early childhood services since 1998. Due to the state revenue decline, Service Integration has been advocated to enhance program supports in Child Health, Family Functioning, and Child Development. In this study, interview data are analyzed to examine the partnership building among 40 programs. The results indicate a significant impact of the service outreach across remote communities in Kern County, California...
December 2016: Evaluation and Program Planning
Erika L Moen, Andrea M Austin, Julie P Bynum, Jonathan S Skinner, A James O'Malley
The application of social network analysis to the organization of healthcare delivery is a relatively new area of research that may not be familiar to health services statisticians and other methodologists. We present a methodological introduction to social network analysis with a case study of physicians' adherence to clinical guidelines regarding use of implantable cardioverter defibrillators (ICDs) for the prevention of sudden cardiac death. We focus on two hospital referral regions (HRRs) in Indiana, Gary and South Bend, characterized by different rates of evidence-based ICD use (86% and 66%, respectively)...
September 2016: Health Services & Outcomes Research Methodology
Ariel Stone, Leonard A Jason, John M Light, Edward B Stevens
Those who study treatment and recovery from alcohol use disorder (AUD) and substance use disorder (SUD) generally agree that an individual's social context impacts his or her success (or failure) in recovery. Recently, as the use of social network analysis has increased, studies on SUD recovery and treatment have adopted ego networks as a research tool. This review aims to tie together a thread of research for an efficient and effective summary. We selected peer-reviewed articles on individuals receiving treatment an intervention for SUD or AUD that used ego network measures of individual social networks...
2016: Alcoholism Treatment Quarterly
Damien Contandriopoulos, Nancy Hanusaik, Katerina Maximova, Gilles Paradis, Jennifer L O'Loughlin
In the field of chronic disease prevention (CDP), collaborations between organizations provide a vital framework for intersectoral engagement and exchanges of knowledge, expertise and resources. However, little is known about how the structures of preventive health systems actually articulate with CDP capacity and outcomes. Drawing upon data from the Public Health Organizational Capacity Study - a repeat census of all public health organizations in Canada - we used social network analysis to map and examine interorganizational collaborative relationships in the Canadian preventive health system...
August 2016: Healthcare Policy, Politiques de Santé
Lauren Molloy Elreda, J Douglas Coatsworth, Scott D Gest, Nilam Ram, Katharine Bamberger
Although the majority of evidence-based programs are designed for group delivery, group process and its role in participant outcomes have received little empirical attention. Data were collected from 20 groups of participants (94 early adolescents, 120 parents) enrolled in an efficacy trial of a mindfulness-based adaptation of the Strengthening Families Program (MSFP). Following each weekly session, participants reported on their relations to group members. Social network analysis and methods sensitive to intraindividual variability were integrated to examine weekly covariation between group process and participant progress, and to predict post-intervention outcomes from levels and changes in group process...
November 2016: Prevention Science: the Official Journal of the Society for Prevention Research
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