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1.
This paper examines the characteristics of middle class Tehranis’ networks, based upon a survey of 318 individuals from the 159 households. The results show that women and men have similar-size networks. However, their networks differ substantially in gender composition, with each having almost two-thirds of network members of their own gender. Men's and women's networks contain a large proportion of kin overall. Most ties tend to be with immediate kin: children, parents and siblings. An immediate kin is usually the socially closest member of a network. Apart from voluntary factors, the importance of kinship ties in men's and women's networks may be the result of the macro-structural conditions under which patterns of social relationships take place.  相似文献   

2.
Capturing dynamics in high-risk personal networks is essential for preventing HIV transmission. Online social networking data offer incentive to augment traditional selfreported approaches for network enumeration. To explore what online networks reveal about dynamics among high-risk associates, we examine the relationship between egocentric confidant and sex networks and personal Facebook friendship networks of a cohort of young Black men who have sex with men. Although overlap exists between self-reported and Facebook associates, the stabilities of each were unrelated. Confidants who were also Facebook friends with a respondent were, however, more likely to be retained. Thus, Facebook networks contain stable confidants.  相似文献   

3.
Previous studies increasingly recognize the presence and impact of difficult individuals within personal networks. However, current research sheds little light on the turnover, retention, and change in quality of such difficult ties. The current study addresses this gap by focusing on two distinct forms of network change. We examine how role relationships, support exchange, relational homophily, and personal characteristics are associated with these processes. Data are drawn from three waves of the University of California Social Network Study (UCNets), a project containing comprehensive longitudinal data on ego networks among two adult cohorts. Findings indicate that over time, 34% of difficult ties re-appear in people’s networks as sources of aggravation; 26% of difficult ties are removed from the network; and 40% can no longer be verified as problematic network members. Most ties no longer deemed difficult are identified as providing one or more supportive functions. Multinomial multilevel models reveal that exchanging support tends to anchor difficult ties in the network. Kinship, meanwhile, plays a large role in whether difficult ties remain or get dropped. Personal characteristics such as gender, income, and relocation also play a role in these processes. Overall, we conclude that the turnover dynamics of difficult ties are similar to other ties, and the apparent change from negative to positive suggests that many ties hold ambivalent properties that make shedding such ties less common than may be expected.  相似文献   

4.
This paper discusses and illustrates various approaches for the longitudinal analysis of personal networks (multilevel analysis, regression analysis, and SIENA). We combined the different types of analyses in a study of the changing personal networks of immigrants. Data were obtained from 25 Argentineans in Spain, who were interviewed twice in a 2-year interval. Qualitative interviews were used to estimate the amount of measurement error and to isolate important predictors. Quantitative analyses showed that the persistence of ties was explained by tie strength, network density, and alters’ country of origin and residence. Furthermore, transitivity appeared to be an important tendency, both for acquiring new contacts and for the relationships among alters. At the network level, immigrants’ networks were remarkably stable in composition and structure despite the high turnover. Clustered graphs have been used to illustrate the results. The results are discussed in light of adaptation to the host society.  相似文献   

5.
6.
In this study, we explore how different mobility patterns influence the composition and structure of the transnational social support networks and how personal networks allow us to elicit insightful data of mobile individuals. Ninety-five mobile individuals were selected from four distinct communities based in Seville (Spain), namely: Erasmus students, Flamenco artists, musicians from the symphonic orchestra and partners of European Commission researchers. Data were collected through an electronic survey sent by email with multiple name generators and a structured face-to-face interview utilizing a network visualization tool, VennMaker. Two distinct methods, namely qualitative case studies and cluster analysis were used to characterize mobility types. Findings reveal a heterogeneous foreign population, in which different forms of mobility are reflected in the personal networks of mobile individuals. Respondents who were settled in the city were more likely to have networks in which social support was mainly derived by hosts and people in the host location and with whom they communicated predominantly through face-to-face communication. Those who were in the host location for a study exchange, knowing that return to the county of origin is imminent were more likely to have networks linked to the home location. They relied heavily on strong transnational ties in the home country using social media to sustain their relationship. Respondents with an itinerant mobility profile, also had networks dominated by strong transnational ties, however, such ties had a higher degree of geographical spread due to previous international mobility. Participants who had a high number of hosts in the network but low connection between the ties were more likely to be linked to a specific subculture in the host society. The integration in the host location follows a different pattern to other settled individuals, mainly because their connection in the city tends to be community specific.  相似文献   

7.
The deconstruction of personal networks through the iterative elimination of the nodes with the highest betweenness centrality is an effective strategy for describing their structural properties. In this study we show that iterative deconstruction can also serve to classify personal networks into typologies. With longitudinal data from a sample of 69 students, we found that denser networks are more resistant to fragmentation while those organized in defined subgroups usually have a shorter deconstruction process. In addition, the deconstruction strategy allows knowing the hierarchical structure of personal networks, made up of nested subgroups.  相似文献   

8.
We present a Multiple Membership Multiple Classification (MMMC) model for analysing variation in the performance of organizational sub-units embedded in a multilevel network. The model postulates that the performance of organizational sub-units varies across network levels defined in terms of: (i) direct relations between organizational sub-units; (ii) relations between organizations containing the sub-units, and (iii) cross-level relations between sub-units and organizations. We demonstrate the empirical merits of the model in an analysis of inter-hospital patient mobility within a regional community of health care organizations. In the empirical case study we develop, organizational sub-units are departments of emergency medicine (EDs) located within hospitals (organizations). Networks within and across levels are delineated in terms of patient transfer relations between EDs (lower-level, emergency transfers), hospitals (higher-level, elective transfers), and between EDs and hospitals (cross-level, non-emergency transfers). Our main analytical objective is to examine the association of these interdependent and partially nested levels of action with variation in waiting time among EDs – one of the most commonly adopted and accepted measures of ED performance. We find evidence that variation in ED waiting time is associated with various components of the multilevel network in which the EDs are embedded. Before allowing for various characteristics of EDs and the hospitals in which they are located, we find, for the null models, that most of the network variation is at the hospital level. After adding these characteristics to the model, we find that hospital capacity and ED uncertainty are significantly associated with ED waiting time. We also find that the overall variation in ED waiting time is reduced to less than a half of its estimated value from the null models, and that a greater share of the residual network variation for these models is at the ED level and cross level, rather than the hospital level. This suggests that the covariates explain some of the network variation, and shift the relative share of residual variation away from hospital networks. We discuss further extensions to the model for more general analyses of multilevel network dependencies in variables of interest for the lower level nodes of these social structures.  相似文献   

9.
Using a representative national sample of personal networks, this article explores how the spatial dispersion of networks, residential mobility and social support are linked. Three issues will be addressed here. Firstly, how is the spatial dispersion of personal networks related to individuals’ social characteristics, network composition and residential mobility? Secondly, how do the spatial dispersion of networks, residential mobility and their combined effect influence the number and (thirdly) the structure of emotional support ties? Results showed that the extent of the support was affected neither by the geographical distribution of the networks nor by residential mobility. Living far from one's birthplace, however, exerted two distinct, and opposite effects on the support network structure. On the one hand, mobility led to high spatial dispersion of personal contacts, which in turn favored a sparsely knit network centered around the mobile individual. On the other hand, by controlling for the effect of distance between the contacts, we found that individuals that cited long-distance ties tended to be part of more transitive support networks than those that cited local ties. We interpreted the latter effect as evidence that transitive ties may survive greater spatial distances than intransitive ones. These findings are discussed in view of spatial mobility and social network research.  相似文献   

10.
《Social Networks》2005,27(4):289-300
One of the fundamental ideas of structural analysis is that in order to understand social structures, one must begin with relations. Yet where do relations come from? A survey of personal networks in the Toulouse area (France) allows us to demonstrate the importance of social circles in the genesis of dyadic relations.  相似文献   

11.
Research on the role of social networks in human migration has mainly relied on single snapshots in time. This paper focuses on the changes in composition and usage of the transnational networks of migrants and why these changes occur. It is based on ethnography and network analysis with forty sub-Saharan African migrants in two transit contexts: Turkey and Greece, over a 17-month period. Findings show that relationship preferences, resources and communication infrastructures constitute an individual opportunity infrastructure affecting how critical events produce network changes. This process is ongoing through the continued experience of critical events, suggesting that the role of networks fluctuates over time.  相似文献   

12.
Increasing representation of racial and ethnic minorities in the health care system and on-going concerns about existing health disparities have pressured addiction health services programs to enhance their cultural competence. This study examines the extent to which organizational factors, such as structure, leadership and readiness for change contribute to the implementation of community, policy and staffing domains representing organizational cultural competence. Analysis of a randomly selected sample of 122 organizations located in primarily Latino and African American communities showed that programs with public funding and Medicaid reimbursement were positively associated with implementing policies and procedures, while leadership was associated with staff having greater knowledge of minority communities and developing a diverse workforce. Moreover, program climate was positively associated with staff knowledge of communities and having supportive policies and procedures, while programs with graduate staff and parent organizations were negatively associated with knowledge of and involvement in these communities. By investing in funding, leadership skills and a strategic climate, addiction health services programs may develop greater understanding and responsiveness of the service needs of minority communities. Implications for future research and program planning in an era of health care reform in the United States are discussed.  相似文献   

13.
The objective of this paper is to demonstrate the importance of public relations work in the tourism industry and to defend its role for its practical application. The study is empirically based and adopts a case-study approach through qualitative methods. It reveals the development of public relations activities and the great need that exists for public relations theoretical framework within the tourism industry.  相似文献   

14.
Communication network connectivity is central to organizational performance, but maintaining connectivity can be difficult during periods of disruption. During the World Trade Center (WTC) disaster of September 11th, 2001, both emergency response-specialized organizations and organizations without such specialization forcibly adapted to a radically altered environment. Their dynamic communication networks necessarily entailed trade-offs between competing demands for efficiency and robustness to disruption. Of particular importance is whether organizations concentrated activity within a small number of “hub” nodes, and whether those with existing coordinative roles were critical to maintaining connectivity. We examine these questions by analyzing seventeen organizational communication networks in the WTC disaster. We find that organizations maintain connectivity through relatively small numbers of coordinators, but the realization of institutionalized coordinative roles depends upon organizational context. Further, we find distinct patterns of robustness, with the removal of key players leading to mass isolation in specialist networks versus a gradual pattern of failure in non-specialist networks. These results suggest that organizations responding to disruptions within their usual domain of operations will be more likely to retain institutionalized roles when building emergent networks, although this increases the network's fragility in the event of the loss of one of those coordinators. Organizations responding to novel threats may reconfigure more radically, limiting vulnerability to the loss of institutionalized—but not emergent—coordinators.  相似文献   

15.
This paper represents the development of an innovative and comprehensive model designed to measure public relations excellence within an organizational context. Drawing on established scales of evaluation for public relations practice, researchers propose a measurement model situated within excellence Theory. Through a partnership between the research team and The Alberta Energy Regulator (AER) organization, a case study approach was developed and implemented, highlighting the relationships between organizational culture and communication. The Excellence in Organizational Context model was tested within the AER, using empirical data gathered through in-depth semi-structured interviews and a self-report questionnaire survey conducted with individuals from various identified organizational stakeholder groups. This mixed-method approach was employed to explore and understand the multi-dimensional nature of public relations practice within this organization.Researchers investigated eight dimensions of excellence in this model. Initial findings indicate that the Excellence in Organizational Context model proposed here is a valid and appropriate method for measuring public relations performance when applied as a mixed-method approach for measuring practice and establishing context within an organizational culture. This indicates the need for both organizational, stakeholder, and sector/national level data in confirming relevant benchmarks.  相似文献   

16.
《Social Networks》2006,28(3):187-208
This paper examines the use of individual, dyadic and system-level analyses in the study of relational data in organizational networks. We argue that dyadic analyses are particularly appropriate when the dependent variable is quantitative and/or involves multiple behaviors. We show that system-level analyses, by aggregating potentially significant information, provide a less grounded account of the relations across networks than do dyadic analyses. Using examples from a study of corporate political behavior, we contrast dyadic analyses with those at both the individual and system-levels. Variables measured in raw dyadic form consistently perform better in accounting for similarity of corporate political behavior than do variables measured by taking system-level properties into account. Our findings suggest that although individual and system-level analyses are useful in a number of situations, dyadic analyses are a flexible means to examine the effects of multiple networks at multiple levels.  相似文献   

17.
The issue of the influence of norms on behavior is as old as sociology itself. This paper explores the effect of normative homophily (i.e. “sharing the same normative choices”) on the evolution of the advice network among lay judges in a courthouse. 0020 and 0025 social exchange theory suggests that members select advisors based on the status of the advisor. Additional research shows that members of an organization use similarities with others in ascribed, achieved or inherited characteristics, as well as other kinds of ties, to mitigate the potentially negative effects of this strong status rule. We elaborate and test these theories using data on advisor choice in the Commercial Court of Paris. We use a jurisprudential case about unfair competition (material and “moral” damages), a case that we submitted to all the judges of this court, to test the effect of normative homophily on the selection of advisors, controlling for status effects. Normative homophily is measured by the extent to which two judges are equally “punitive” in awarding damages to plaintiffs. Statistical analyses combine longitudinal advice network data collected among the judges with their normative dispositions. Contrary to what could be expected from conventional sociological theories, we find no pure effect of normative homophily on the choice of advisors. In this case, therefore, sharing the same norms and values does not have, by itself, a mitigating effect and does not contribute to the evolution of the network. We argue that status effects, conformity and alignments on positions of opinion leaders in controversies still provide the best insights into the relationship between norms, structure and behavior.  相似文献   

18.
This case study examines a confrontation between WikiLeaks and Bank of America (BOA). Drawing upon Castells’ concept of mass self-communication and the cocreational approach to public relations, a triangulation of social network analysis and event study method allows this project to capture the structure of WikiLeaks’ global network and to document how the activist network affected BOA's stock value. The analysis reveals that WikiLeaks emerged as the center of a global mass self-communication network consisting of a diverse group of members, such as social media sites and mass media outlets. The study offers implications for a re-conceptualization of the role of activism in public relations.  相似文献   

19.
How individuals develop perceptions concerning the risk of infant and child mortality has important consequences for fertility and demographic transition theory and for understanding broader processes of social learning. The role of learning through social interaction in shaping demographic phenomena has been the subject of intense research in the last decade. Much previous research however has been hampered by inadequate measures of individuals’ personal networks, the proximal context in which learning takes place. Using pilot data employing an innovative social network design in conjunction with demographic surveillance data from Niakhar, Senegal, this research models perception of change in the level of infant mortality over time as a function of the experience of social network associates with perinatal and infant mortality. Results suggest relatively strong effects of network members’ mortality experience controlling for own experiences of child mortality as well as neighborhood and community levels of infant mortality among other controls.  相似文献   

20.
This study examined the present state of teaching ethics in university public relations departments in the U.S. and abroad. The results of this online survey indicated that PR teachers (N = 249) perceived ethics instruction in PR education to be essential, and they believed in a close tie between general morality and professional ethics. However, the results also showed that the higher the participants’ academic rank, the less favorable attitude they held toward the value of ethics education to students.  相似文献   

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