Social Networks IZA Dpno
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Creating & Connecting: Research and Guidelines on Online Social
CREATING & CONNECTING//Research and Guidelines on Online Social — and Educational — Networking NATIONAL SCHOOL BOARDS ASSOCIATION CONTENTS Creating & Connecting//The Positives . Page 1 Online social networking Creating & Connecting//The Gaps . Page 4 is now so deeply embedded in the lifestyles of tweens and teens that Creating & Connecting//Expectations it rivals television for their atten- and Interests . Page 7 tion, according to a new study Striking a Balance//Guidance and Recommendations from Grunwald Associates LLC for School Board Members . Page 8 conducted in cooperation with the National School Boards Association. Nine- to 17-year-olds report spending almost as much time About the Study using social networking services This study was made possible with generous support and Web sites as they spend from Microsoft, News Corporation and Verizon. watching television. Among teens, The study was comprised of three surveys: an that amounts to about 9 hours a online survey of 1,277 nine- to 17-year-old students, an online survey of 1,039 parents and telephone inter- week on social networking activi- views with 250 school district leaders who make deci- ties, compared to about 10 hours sions on Internet policy. Grunwald Associates LLC, an a week watching TV. independent research and consulting firm that has conducted highly respected surveys on educator and Students are hardly passive family technology use since 1995, formulated and couch potatoes online. Beyond directed the study. Hypothesis Group managed the basic communications, many stu- field research. Tom de Boor and Li Kramer Halpern of dents engage in highly creative Grunwald Associates LLC provided guidance through- out the study and led the analysis. -
Adolescent Social Networks and Sexual Practices Wassie Kebede
Social Networks and Sexual Practices ____________________________________________________________________________ Adolescent Social Networks and Sexual Practices Wassie Kebede B.A., Addis Ababa University M.A., Addis Ababa University A Dissertation Submitted in Partial Fulfillment of the Requirements for the Degree of DOCTOR OF PHILOSOPHY In Social Work & Social Development © Wassie Kebede, 2009 Addis Ababa University All Rights Reserved. This dissertation may not be reproduced in whole or in part, by photocopying or other means, without the permission of the author Social Networks and Sexual Practices ii ___________________________________________________________________________ Social Networks and Sexual Practices iii ______________________________________________________________________________ Abstract This study examines adolescent social networks and sexual practices (and how they differ among males and females of different ages) among ninth-grade students in two high schools in Addis Ababa, Ethiopia. Social exchange theory and group socialization theory guide the study. Other theories that the study utilizes are the theory of homophily, balance theory, the theory of self-interest, and the theory of early sexual practices. Up to now, there has been no systematic research in Ethiopia or the rest of Africa on the relationship between adolescent social networks and sexual practices. Mixed-methods research guides the study, which consists of two parts. Study A generated data from a 264-item survey of 167 respondents, to which parametric and nonparametric statistics (using a consistent alpha of .05) are applied. Study B used 10 critical cases to generate qualitative data. Critical cases are study participants selected based on their capacity to provide reliable data of interest. UCINET 6.0 was used to draw social network diagrams, and qualitative data were transcribed and subjected to content analysis. -
Sexual Network Analysis of a Gonorrhoea Outbreak P De, a E Singh, T Wong, W Yacoub, a M Jolly
280 Sex Transm Infect: first published as 10.1136/sti.2003.007187 on 4 August 2004. Downloaded from ORIGINAL ARTICLE Sexual network analysis of a gonorrhoea outbreak P De, A E Singh, T Wong, W Yacoub, A M Jolly ............................................................................................................................... Sex Transm Infect 2004;80:280–285. doi: 10.1136/sti.2003.007187 Objectives: Sexual partnerships can be viewed as networks in order to study disease transmission. We examined the transmission of Neisseria gonorrhoeae in a localised outbreak in Alberta, Canada, using measures of network centrality to determine the association between risk of infection of network members and their position within the sexual network. We also compared risk in smaller disconnected components with a large network centred on a social venue. Methods: During the investigation of the outbreak, epidemiological data were collected on gonorrhoea cases and their sexual contacts from STI surveillance records. In addition to traditional contact tracing information, subjects were interviewed about social venues they attended in the past year where casual sexual partnering may have occurred. Sexual networks were constructed by linking together named See end of article for authors’ affiliations partners. Univariate comparisons of individual network member characteristics and algebraic measures of ....................... network centrality were completed. Results: The sexual networks consisted of 182 individuals, of whom 107 were index cases with laboratory Correspondence to: Prithwish De, Department confirmed gonorrhoea and 75 partners of index cases. People who had significantly higher information of Epidemiology and centrality within each of their local networks were found to have patronised a popular motel bar in the Biostatistics, McGill main town in the region (p = 0.05). -
Opportunities and Challenges for Standardization in Mobile Social Networks
Opportunities and Challenges for Standardization in Mobile Social Networks Laurent-Walter Goix, Telecom Italia [email protected] Bryan Sullivan, AT&T [email protected] Abstract This paper describes the opportunities and challenges related to the standardization of interoperable “Mobile Social Networks”. Challenges addressed include the effect of social networks on resource usage, the need for social network federation, and the needs for a standards context. The concept of Mobile Federated Social Networks as defined in the OMA SNEW specification is introduced as an approach to some of these challenges. Further specific needs and opportunities in standards and developer support for mobile social apps are described, including potentially further work in support of regulatory requirements. Finally, we conclude that a common standard is needed for making mobile social networks interoperable, while addressing privacy concerns from users & institutions as well as the differentiations of service providers. 1 INTRODUCTION Online Social Networks (OSN) are dominated by Walled Gardens that have attracted users by offering new paradigms of communication / content exchange that better fit their modern lifestyle. Issues are emerging related to data ownership, privacy and identity management and some institutions such as the European Commission have started to provide measures for controlling this. The impressive access to OSN from ever smarter mobile devices, as well as the growth of mobile- specific SN services (e.g. WhatsApp) have further stimulated the mobile industry that is already starving for new attractive services (RCS 1). In this context OMA 2 as mobile industry forum has recently promoted the SNEW specifications that can leverage network services such as user identity and native interoperability of mobile networks (the approach promoted by “federated social networks”). -
Religion Networks and Hiv/Aids in Rural Malawi
RELIGION NETWORKS AND HIV/AIDS IN RURAL MALAWI DISSERTATION Presented in Partial Fulfillment of the Requirements for The Degree of Doctor of Philosophy in the Graduate School of Ohio State University By jimi adams * * * * * Ohio State University 2007 Dissertation Committee: Approved by Professor Kazimierz M. Slomczynski, Advisor Professor James W. Moody, Outside Member _______________________ Professor Korie Edwards Advisor Sociology Graduate Program Professor Steven H. Lopez Copyright by jimi adams 2007 ABSTRACT Sub-Saharan Africa’s residents represent approximately two-thirds of the nearly 40 million global HIV/AIDS cases, while comprising only about one-tenth of the world’s population. In the rural settings where most inhabitants of SSA live, religious organizations are the only formal organizations present, and virtually all residents of SSA participate in a religious organization. Many have theorized a relationship between religion and HIV/AIDS, suggesting alternately its helpful and harmful potential in this crisis. The existing research conceptualizes religion, HIV risk and the connection between them by studying individuals, organizations, or aggregations of individuals and organizations. In this dissertation, I demonstrate the adjustments a network perspective contributes to researchers’ ability to understand religious organizational responses to this epidemic, the nature of HIV-risk and, perhaps most importantly, how these are linked. The resulting conceptualization suggests some of the first mechanisms that demonstrate how -
The Effect of Social Media Use on Physical Isolation in Individuals with Borderline Personality Disorder
Walden University ScholarWorks Walden Dissertations and Doctoral Studies Walden Dissertations and Doctoral Studies Collection 2021 The Effect of Social Media use on Physical Isolation in Individuals with Borderline Personality Disorder Davena Limitless Longshore Walden University Follow this and additional works at: https://scholarworks.waldenu.edu/dissertations Part of the Clinical Psychology Commons, Computer Sciences Commons, and the Quantitative, Qualitative, Comparative, and Historical Methodologies Commons This Dissertation is brought to you for free and open access by the Walden Dissertations and Doctoral Studies Collection at ScholarWorks. It has been accepted for inclusion in Walden Dissertations and Doctoral Studies by an authorized administrator of ScholarWorks. For more information, please contact [email protected]. Walden University College of Social and Behavioral Sciences This is to certify that the doctoral dissertation by Davena L. Longshore has been found to be complete and satisfactory in all respects, and that any and all revisions required by the review committee have been made. Review Committee Dr. Georita Frierson, Committee Chairperson, Psychology Faculty Dr. Alethea Baker, Committee Member, Psychology Faculty Dr. Michael Johnson, University Reviewer, Psychology Faculty Chief Academic Officer and Provost Sue Subocz, Ph.D. Walden University 2021 Abstract The Effect of Social Media use on Physical Isolation in Individuals with Borderline Personality Disorder. by Davena L. Longshore MS, Walden University, 2017 MIS, University of Phoenix, 2008 BA, Florida Atlantic University, 2004 Dissertation Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy Clinical Psychology Walden University August 2021 Abstract Individuals with borderline personality disorder (BPD) experience extreme interpersonal conflict, crippling their ability to sustain successful relationships. -
Chains of Affection: the Structure of Adolescent Romantic and Sexual Networks
Chains of Affection: The Structure of Adolescent Romantic and Sexual Networks Peter S. Bearman* Institute for Social and Economic Research and Policy Columbia University James Moody Department of Sociology Ohio State University Katherine Stovel Department of Sociology University of Washington 9960 words 10 figures 5 tables Data for this paper are drawn from the National Longitudinal Study of Adolescent Health (Add Health), a program project designed by J. Richard Udry and Peter Bearman, and funded by a grant HD31921 from the National Institute of Child Health and Human Development to the Carolina Population Center, University of North Carolina at Chapel Hill, with cooperative funding participation by the following agencies: The National Cancer Institute; The National Institute of Alcohol Abuse and Alcoholism; the National Institute on Deafness and other Communication Disorders; the National Institute on Drug Abuse; the National Institute of General Medical Sciences; the National Institute of Mental health; the Office of AIDS Research, NIH; the Office of Director, NIH; The National Center for Health Statistics, Centers for Disease Control and Prevention, HHS; Office of Minority Health, Centers for Disease Control and prevention, HHS, Office of the Assistant Secretary for Planning and Evaluation, HHS; and the National Science Foundation. The authors thank Douglas White, Martina Morris, Mark Hancock, and J. Richard Udry for helpful comments on previous drafts of this paper. *Corresponding author. Institute for Social and Economic Research and Policy. 814 SIPA Building, Columbia University, New York NY 10027. Email: [email protected] 1 Abstract: Recognizing the actual structure of sexual networks is critical for modeling the potential for disease transmission, if disease is spread via sexual contact. -
Likelihood-Based Inference for Stochastic Models of Sexual Network Formation
Likelihood-Based Inference for Stochastic Models of Sexual Network Formation Mark S. Handcock Center for Statistics and the Social Sciences Department of Statistics University of Washington, Seattle, WA James Holland Jones1 Center for Studies in Demography and Ecology Center for Statistics and the Social Sciences Center for AIDS and Sexually Transmitted Diseases University of Washington, Seattle, WA 29 January 2003 Working Paper #29 Center for Statistics and the Social Sciences University of Washington Box 354322 Seattle, WA 98195-4322, USA 1Corresponding Author: Center for Statistics and the Social Sciences, Box 354320, Seattle, WA 98195- 4320, email: [email protected], Phone: 206-221-6874, Fax: 206-221-6873 Abstract Sexually-Transmitted Diseases (STDs) constitute a major public health concern. Mathematical models for the transmission dynamics of STDs indicate that heterogeneity in sexual activity level allow them to persist even when the typical behavior of the population would not support endemicity. This insight focuses attention on the distribution of sexual activity level in a pop- ulation. In this paper, we develop several stochastic process models for the formation of sexual partnership networks. Using likelihood-based model selection procedures, we assess the fit of the different models to three large distributions of sexual partner counts: (1) Rakai, Uganda, (2) Sweden, and (3) the USA. Five of the six single-sex networks were fit best by the negative binomial model. The American women’s network was best fit by a power-law model, the Yule. For most networks, several competing models fit approximately equally well. These results sug- gest three conclusions: (1) no single unitary process clearly underlies the formation of these sexual networks, (2) behavioral heterogeneity plays an essential role in network structure, (3) substantial model uncertainty exists for sexual network degree distributions. -
Chazen Society Fellow Interest Paper Orkut V. Facebook: the Battle for Brazil
Chazen Society Fellow Interest Paper Orkut v. Facebook: The Battle for Brazil LAUREN FRASCA MBA ’10 When it comes to stereotypes about Brazilians – that they are a fun-loving people who love to dance samba, wear tiny bathing suits, and raise their pro soccer players to the levels of demi-gods – only one, the idea that they hold human connection in high esteem, seems to be born out by concrete data. Brazilians are among the savviest social networkers in the world, by almost all engagement measures. Nearly 80 percent of Internet users in Brazil (a group itself expected to grow by almost 50 percent over the next three years1) are engaged in social networking – a global high. And these users are highly active, logging an average of 6.3 hours on social networks and 1,220 page views per month per Internet user – a rate second only to Russia, and almost double the worldwide average of 3.7 hours.2 It is precisely this broad, highly engaged audience that makes Brazil the hotly contested ground it is today, with the dominant social networking Web site, Google’s Orkut, facing stiff competition from Facebook, the leading aggregate Web site worldwide. Social Network Services Though social networking Web sites would appear to be tools born of the 21st century, they have existed since even the earliest days of Internet-enabled home computing. Starting with bulletin board services in the early 1980s (accessed over a phone line with a modem), users and creators of these Web sites grew increasingly sophisticated, launching communities such as The WELL (1985), Geocities (1994), and Tripod (1995). -
2010 Nonprofit Social Network Benchmark Report
April 2010 Nonprofit Social Network Benchmark Report www.nonprofitsocialnetworksurvey.com www.nten.org www.commonknow.com www.theport.com Introduction NTEN, Common Knowledge, and ThePort Network offer this second annual installment of the Nonprofit Social Networking Benchmark Report. This report’s objective is to provide nonprofits with insights and trends surrounding social networking technology as part of nonprofit organizations’ marketing, communications, fundraising, and program house social network services. Social networking community built on Between February 3 and March 15, 2010, a nonprofit’s own 1,173 nonprofit professionals responded to website. Term derived a survey about their organization’s use of from direct mail online social networks. house lists. Two groups of questions were posed to survey participants: commercial 1. Tells us about your use of commercial social network social networks such as Facebook, Twitter, An online community LinkedIn, and others. owned and operated by a corporation. 2. Tell us about your work building and Popular examples using social networks on your own include Facebook and websites, called house social networks . MySpace. Survey respondents represented small, medium and large nonprofits and all nonprofit segments: Arts & Culture, Association, Education, Environment & Animals, Health & Healthcare, Human Services, International, Public & Societal Benefit, Religious and others (See Appendix A for more details). www.nonprofitsocialnetworksurvey.com 1 Executive Summary Commercial Social Networks Nonprofits continued to increase their use of commercial social networks over 2009 and early 2010 with Facebook and Twitter proving to be the preferred networks. LinkedIn and YouTube held steady, but MySpace lost significant ground. The following are the key excerpts from this section: • Facebook is still used by more nonprofits than any other commercial social network with 86% of nonprofits indicating that they have a presence on this network. -
Social Networks Influence Analysis
University of North Florida UNF Digital Commons UNF Graduate Theses and Dissertations Student Scholarship 2017 Social Networks Influence Analysis Doaa Gamal University of North Florida, [email protected] Follow this and additional works at: https://digitalcommons.unf.edu/etd Part of the Computer Sciences Commons Suggested Citation Gamal, Doaa, "Social Networks Influence Analysis" (2017). UNF Graduate Theses and Dissertations. 723. https://digitalcommons.unf.edu/etd/723 This Master's Thesis is brought to you for free and open access by the Student Scholarship at UNF Digital Commons. It has been accepted for inclusion in UNF Graduate Theses and Dissertations by an authorized administrator of UNF Digital Commons. For more information, please contact Digital Projects. © 2017 All Rights Reserved SOCIAL NETWORKS INFLUENCE ANALYSIS by Doaa H. Gamal A thesis submitted to the School of Computing in partial fulfillment of the requirements for the degree of Master of Science in Computing and Information Sciences UNIVERSITY OF NORTH FLORIDA SCHOOL OF COMPUTING Spring, 2017 Copyright (©) 2017 by Doaa H. Gamal All rights reserved. Reproduction in whole or in part in any form requires the prior written permission of Doaa H. Gamal or designated representative. ii This thesis titled “Social Networks Influence Analysis” submitted by Doaa H. Gamal in partial fulfillment of the requirements for the degree of Master of Science in Computing and Information Sciences has been Approved by the thesis committee: Date Dr. Karthikeyan Umapathy Thesis Advisor and Committee Chairperson Dr. Lakshmi Goel Dr. Sandeep Reddivari Accepted for the School of Computing: Dr. Sherif A. Elfayoumy Director of the School Accepted for the College of Computing, Engineering, and Construction: Dr. -
Delay of Social Search on Small-World Graphs ⋆
⋆ Delay of Social Search on Small-world Graphs Hazer Inaltekin a,∗ Mung Chiang b H. Vincent Poor b aThe University of Melbourne, Melbourne, VIC 3010, Australia bPrinceton University, Princeton, NJ 08544, United States Abstract This paper introduces an analytical framework for two small-world network models, and studies the delay of targeted social search by considering messages traveling between source and tar- get individuals in these networks. In particular, by considering graphs constructed on different network domains, such as rectangular, circular and spherical network domains, analytical solu- tions for the average social search delay and the delay distribution are obtained as a function of source-target separation, distribution of the number of long-range connections and geometri- cal properties of network domains. Derived analytical formulas are first verified by agent-based simulations, and then compared with empirical observations in small-world experiments. Our formulas indicate that individuals tend to communicate with one another only through their short-range contacts, and the average social search delay rises linearly, when the separation between the source and target is small. As this separation increases, long-range connections are more commonly used, and the average social search delay rapidly saturates to a constant value and stays almost the same for all large values of the separation. These results are qual- itatively consistent with experimental observations made by Travers and Milgram in 1969 as well as by others. Moreover, analytical distributions predicted by our models for the delay of social search are also compared with corresponding empirical distributions, and good statistical matches between them are observed.