851 resultados para reti power law social network analysis sna borsa italiana misure di centralità e potere scale free
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The Olivia framework is a set of concepts and measures that, when mature, will allow users to describe, in a consistent and integrated manner, everything about individuals and institutions that is of potential interest to social policy. The present paper summarizes the current stage of development in achieving this highly ambitious goal. The current version of the framework supports analysis of social trends and policy responses from many perspectives: • The point-in-time, resource-flow perspectives that underlie most traditional, economics-based policy analysis. • Life-course perspectives, including both transitions/trajectories analysis and asset-based analysis. • Spatial perspectives that anchor people in space and history and that provide a link to macro-analysis. • The perspective of the purposes/goals of individuals and institutions, including the objectives of different types of government programming. The concepts of the framework, which are all potentially measurable, provide a language that can support integrated analysis in all these areas at a much finer level of description than is customary. It provides a language that is especially well suited for analysis of the incremental policy changes that are typical of a mature welfare state. It supports both qualitative and quantitative analysis, enabling some integration between the two. It supports citizen-centric as well as a government-centric view of social policy. In its current version, the concepts are most highly developed as they related to social policies as they related to labour markets, equality and social integration, care-giving, immigration, income security, sustainability, and social and economic well-being more generally. However the paper points to likely extensions in the areas of health, justice and safety.
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This thesis reports on an exploratory study of the relationship between the Internet and women’s empowerment in China. The theoretical framework of the study combines feminist theorisations of power – the core concept of empowerment – with insights from sociological perspectives on power and gender, as well as collective action theory. This allows for the conceptualisation of women’s empowerment as a dynamic process that is shaped by a set of communicative practices. Focusing on female Chinese bloggers and women’s groups of different organisational types, this study aims to explore the respective ways in which these two types of women actors use the Internet with a view to examining whether, and the extent to which it enables them to generate a sense of empowerment. The empirical data mainly derives from interviews with female bloggers and with staff members from different women’s groups, as well as from a features analysis and social network analysis of the sampled blogs and official websites of studied groups. Overall, the findings suggest that the opportunities offered by the Internet for women’s empowerment through awareness-raising, social interactions, and the organising of collective action, are limited. For female bloggers, their activities do not translate the new communicative practices afforded by the Internet into concrete action to bring about changes in their everyday life. On the contrary, blogs become an alternative platform to discipline their behaviours and to reinforce patriarchal gendered norms. Moreover, the research finds that the promise of empowerment is further undermined by the pervasive commercialisation of the Internet and state control. For women’s groups, contextual factors prevent them from fully realising the potential of the Internet for increasing their organisational visibility, promoting public awareness about gender issues, building a sense of the collective, campaigning, or networking. The major barriers in these processes are state control, a lack of resources, online censorship, and at times, competition from commercial sites. In this respect, the Internet does not play a significant role in forming a collective to challenge existing unjust power relations.
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The Enred@te initiative, created by Red Cross, the Vodafone Foundation and the TECSOS Foundation, emerged as an evolution of a previous project that developed and piloted a video-communication solution with older adults, using a system installed in their own televisions. Following the success of this first initiative, it was decided to advance toward a more flexible, robust, easy-to-use and high-quality solution, producing a social network accessible through tablets. Older adults can use the network to video-communicate with other older adults and stay informed on various topics of interest. Additionally, a new innovation incorporates the participation of virtual volunteers, a part of the network that promotes its use in an inclusive and participative manner. This solution was also piloted in 2014 with positive results and work to turn it into a service that can reach older adults through the Red Cross is currently on-going.
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Marine protected areas (MPAs) are commonly employed to protect ecosystems from threats like overfishing. Ideally, MPA design should incorporate movement data from multiple target species to ensure sufficient habitat is protected. We used long-term acoustic telemetry and network analysis to determine the fine-scale space use of five shark and one turtle species at a remote atoll in the Seychelles, Indian Ocean, and evaluate the efficacy of a proposed MPA. Results revealed strong, species-specific habitat use in both sharks and turtles, with corresponding variation in MPA use. Defining the MPA's boundary from the edge of the reef flat at low tide instead of the beach at high tide (the current best in Seychelles) significantly increased the MPA's coverage of predator movements by an average of 34%. Informed by these results, the larger MPA was adopted by the Seychelles government, demonstrating how telemetry data can improve shark spatial conservation by affecting policy directly.
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Marine protected areas (MPAs) are commonly employed to protect ecosystems from threats like overfishing. Ideally, MPA design should incorporate movement data from multiple target species to ensure sufficient habitat is protected. We used long-term acoustic telemetry and network analysis to determine the fine-scale space use of five shark and one turtle species at a remote atoll in the Seychelles, Indian Ocean, and evaluate the efficacy of a proposed MPA. Results revealed strong, species-specific habitat use in both sharks and turtles, with corresponding variation in MPA use. Defining the MPA's boundary from the edge of the reef flat at low tide instead of the beach at high tide (the current best in Seychelles) significantly increased the MPA's coverage of predator movements by an average of 34%. Informed by these results, the larger MPA was adopted by the Seychelles government, demonstrating how telemetry data can improve shark spatial conservation by affecting policy directly.
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This deliverable summarizes, validates and explains the purpose and concept behind the RAGE knowledge and innovation management platform as a self-sustainable Ecosystem, supporting innovation processes in the Applied Gaming (AG) industry. The Ecosystem portal will be developed with particular consideration of the demand and requirements of small and medium sized game developing companies, education providers and related stakeholders like AG researchers and AG end-users. The innovation potential of the new platform underlies the following factors: a huge, mostly entire collection of community specific knowledge (e.g., content like media objects, software components and best practices), a structured approach of knowledge access, search and browse, collaboration tools as well as social network analysis tools to foster efficient knowledge creation and transformation processes into marketable technology assets. The deliverable provides an overview of the current status and the remaining work to come, preceding the final version in month 48 of the RAGE project.
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We investigate the performance of dual-hop two-way amplify-and-forward (AF) relaying in the presence of inphase and quadrature-phase imbalance (IQI) at the relay node. In particular, the effective signal-to-interference-plus-noise ratio (SINR) at both sources is derived. These SINRs are used to design an instantaneous power allocation scheme, which maximizes the minimum SINR of the two sources under a total transmit power constraint. The solution to this optimization problem is analytically determined and used to evaluate the outage probability (OP) of the considered two-way AF relaying system. Both analytical and numerical results show that IQI can create fundamental performance limits on two-way relaying, which cannot be avoided by simply improving the channel conditions.
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Typologies have represented an important tool for the development of comparative social policy research and continue to be widely used in spite of growing criticism of their ability to capture the complexity of welfare states and their internal heterogeneity. In particular, debates have focused on the presence of hybrid cases and the existence of distinct cross-national pattern of variation across areas of social policy. There is growing awareness around these issues, but empirical research often still relies on methodologies aimed at classifying countries in a limited number of unambiguous types. This article proposes a two-step approach based on fuzzy-set-ideal-type analysis for the systematic analysis of hybrids at the level of both policies (step 1) and policy configurations or combinations of policies (step 2). This approach is demonstrated by using the case of childcare policies in European economies. In the first step, parental leave policies are analysed using three methods – direct, indirect, and combinatory – to identify and describe specific hybrid forms at the level of policy analysis. In the second step, the analysis focus on the relationship between parental leave and childcare services in order to develop an overall typology of childcare policies, which clearly shows that many countries display characteristics normally associated with different types (hybrids and. Therefore, this two-step approach enhances our ability to account and make sense of hybrid welfare forms produced from tensions and contradictions within and between policies.
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O objetivo central desta pesquisa foi identificar se os indivíduos que recebem maior indicação de afinidade pelos membros da rede social em que estão inseridos na empresa são aqueles considerados possuidores de maior participação colaborativa pelos gestores. O estudo foi realizado com 17 funcionários do setor produtivo de uma pequena empresa metalúrgica localizada em São Caetano do Sul - SP. Inicialmente, utilizou-se a técnica de Análise de Redes Sociais (SNA-Social Network Analysis) através do software UCINET 6.0, considerando-se o critério de afinidade. Cada funcionário indicou um nível de afinidade que possui com cada um dos demais participantes da rede. A SNA permite diversas análises das relações entre os componentes da rede úteis para os gestores, e algumas delas são mostradas neste artigo. Porém, o foco principal do trabalho foi primeiramente identificar quais indivíduos (nós da rede) recebem maior número de manifestações de afinidade (variável afinidade). Numa segunda etapa, coletou-se a percepção dos gestores do setor com relação à disposição em colaborar de cada funcionário (variável disposição em colaborar). Finalmente, utilizando o software SPSS 15, realizou-se teste estatístico onde foi verificada a existência de forte correlação entre as duas varáveis. Assim, o estudo indicou que os funcionários que recebem maior número de manifestações de afinidade dos colegas são os que têm maior disposição em colaborar, segundo os gestores da empresa. Esta constatação indica que, se os gestores buscarem formas de estimular a inserção social dos funcionários, provavelmente haverá aumento nos níveis de participação colaborativa.
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Sendo um dos objetivos do Serviço Social a promoção do bem-estar social, e considerando a relevância das redes sociais pessoais e do suporte social no bem-estar das pessoas idosas, o presente estudo analisa perfis de redes sociais pessoais de idosos, tendo em conta as suas características estruturais, funcionais e relacionais-contextuais, na perspectiva do Serviço Social sistémico. Na última etapa da vida identificam-se na rede social de um individuo vários determinantes com efeitos cumulativos que favorecem o estreitamento das redes sociais, sendo os contextos de vida, as necessidades de apoio de respostas sociais e a institucionalização, fatores relevantes para a investigação. A investigação quantitativa, utilizou um inquérito por questionário para caracterizar sociodemograficamente a amostra e o Instrumento de Análise de Rede Social Pessoal (Guadalupe, 2009) para caracterizar a rede nas suas dimensões e características, privilegiando-se uma análise bivariada das variáveis. A amostra é composta por 317 idosos com idade igual ou superior a 65 anos. Comparámos três subamostras: 209 idosos que não usufruem do apoio de respostas sociais (65,9%), sendo estes maioritariamente de sexo feminino, casado(a)s ou a viver em união de facto e com média de 75 anos; 71 idosos que usufruem de apoio de respostas sociais (22,4%), na sua maioria de sexo feminino, viúvo(a)s e com 80 anos de média de idade; 37 idosos institucionalizados em Lar (11,7%), mulheres na sua maioria, viúvo(a)s, com média de 83 anos. A hipótese inicial do nosso estudo era a existência de três perfis distintos nas redes sociais pessoais de idosos, conforme a sua relação com as respostas sociais, no entanto, concluiu-se que existe um padrão comum nas redes sociais destes idosos, quer a nível estrutural, como a nível funcional ou contextual. Todavia, identificamos algumas diferenças significativas (p < 0,041) entre os perfis explorados, na composição das redes, na reciprocidade de apoio, na satisfação da rede, na densidade, na frequência de contactos, na distância geográfica e na durabilidades das relações. O estudo constitui-se como um contributo para o Serviço Social, na medida em que oferece conhecimento sobre as redes sociais dos idosos em diferentes contextos de vida, não oferecendo, no entanto, uma categorização que possibilite a construção cabal de tipologias, mas antes, fornece uma base orientadora da avaliação das redes sociais pessoais e de suporte social de idosos para o diagnóstico social. / Being one of Social Work goals the promotion of social well-being, and considering the relevance of personal social networks and social support in the well-being of the elderly, the present study analyzes personal social network’s profiles of elderly people, taking into account their structural, functional and relational-contextual characteristics, in a Social Work systemic perspective. In the last stage of life are identified in an individual's various social network determinants with cumulative effects favouring the narrowing of social networks, being life contexts, the support needs of social responses and institutionalization, relevant factors to the investigation. Our quantitative research used a survey to characterize socially and demographically the sample and the Personal Social Network Analysis Tool (Guadalupe, 2009) to characterize the network in its dimensions and characteristics, using a bivariate analysis of the variables. The sample is composed of 317 elderly aged 65 years old or more. We compared three sub-samples: 209 seniors who do not have the support of social services (65.9%), mostly female, married or cohabiting and with an average of 75 years old; 71 seniors who have support of social services (22.4%), mostly women, widowed and with 80 years of average age; 37 institutionalized elderly (11.7%), mostly women, widowed, with an average age of 83 years. The initial hypothesis of our study was the existence of three distinct personal profiles on social networks, according to their relationship to the social services, however, we have concluded that there is a common pattern in social networks of these elderly, at their structural, functional or contextual level. However, we identified some significant differences (p < 0.041) between the explored profiles, in the composition of networks, support reciprocity, network satisfaction, density, frequency of contacts, geographical distance and durability of relations. The study is a contribution to Social Work, insofar as it provides knowledge about personal social networks of the elderly in different life contexts, not offering, however, a fully categorization that allows the construction of typologies, but rather, provides guidance lines in the evaluation of personal social networks and social support of the elderly to the social diagnosis.
Resumo:
Objetivo: O objetivo central deste estudo é caracterizar as redes sociais pessoais de indivíduos com idade igual ou superior a 65 anos, a nível estrutural, funcional e relacional-contextual, analisando-as segundo o nível de participação social dos idosos ao longo da sua vida em estruturas comunitárias ligadas ao lazer, cultura, desporto, religião e voluntariado. Metodologia: Para a avaliação das variáveis em estudo foram utilizados o Instrumento de Análise da Rede Social Pessoal, versão para idosos (IARSP – Idosos) (Guadalupe, 2010; Guadalupe & Vicente, 2012) para avaliar as dimensões da rede social pessoal, um questionário para caracterizar as variáveis sociodemográficas e a participação social e a Satisfaction With Life Scale – SWLS (Diener, 1985) que permite avaliar o grau de satisfação com a vida. Participantes: A amostra é constituída por 567 idosos, com uma média de idades de 75 anos (DP=7,6), entre os 65 anos e os 98 anos, maioritariamente do sexo feminino (63,0%), casados ou em união de facto (53,7%) e com escolaridade (69,8%), sobretudo ao nível do quarto ano (51,3%). A maioria dos idosos inquiridos não vive só (79,4%) numa zona de residência maioritariamente inserida em aglomerado populacional em região rural (57,0%) e não usufrui de qualquer tipo de apoio de resposta social (75,5%). Resultados: A amostra divide-se entre os que participaram comunitariamente ao longo da vida (47,8%; n = 271) e os que não participaram (52,2%; n = 296), sendo que entre os que participam 16,7% fazem-no com elevada frequência. Os idosos do sexo feminino, com idade igual ou inferior a 75 anos, casados, com habilitações literárias e que vivem acompanhados, são os que têm uma maior probabilidade de ter uma participação social mais ativa. Os idosos que apresentam participação social têm uma rede maior, com um membro a mais em média (M = 8,52 vs. 7,51, p = 0,027), e uma composição distinta dos que não participam, com menor peso das relações familiares (M = 72,61% vs. 80,81%, p < 0,001), maior peso e mais relações de amizade (M = 15,43% vs. M = 9,24%, p < 0,001) e maior presença de relações de trabalho (M = 1,11% vs. 0,13%, p = 0,006). Relativamente às características funcionais, podemos constatar que a reciprocidade de apoio é percebida como maior (p = 0,010) entre os idosos que participam comunitariamente, não se verificando diferenças noutras variáveis funcionais e relacionais-contextuais. O nível de participação e a satisfação com o nível de participação correlacionam-se positivamente com a satisfação percebida com a vida (p < 0,001). Conclusão: As conclusões apontam para um efeito da participação social ao longo da vida em estruturas comunitárias nas características estruturais das redes sociais pessoais dos idosos, não se verificando interferência na maioria das características funcionais e nas relacionais-contextuais. Verificámos ainda que há uma associação entre a participação social e a satisfação com a vida, sendo mais satisfeitos os que participam em estruturas comunitárias. É possível constatar que a rede daqueles que referem ter participação social é tendencialmente maior e heterogénea na composição, quando comparada com as redes dos sem participação social, assumindo, assim, relevância na estruturação de uma rede mais diversa e ampla, devendo ser estimulada no sentido de promover uma rede com recursos potencialmente positivos e um envelhecimento mais ativo. / Objectives: The central objective of this study is to characterize the personal social networks of the elderly, aged 65 years or more, analyzing them according to the level of social participation throughout their life in community structures related to leisure, culture, sports, religion and volunteering. Methodology: For the evaluation of the variables we used the Social Network Analysis Tool (IARSP-elderly) (Guadalupe, 2010; Guadalupe Vicente, 2012) to assess the dimensions of the social network; a questionnaire to evaluate social participation; and the Satisfaction With Life Scale SWLS – (Diener, 1985) to acess the degree of satisfaction with life. Participants: The sample consists of 567 elderly, with an average age of 75 years old (SD = 7,595), between 65 and 98 years old, mostly female (63.0 %), married (53.7%) with education (69.8%), mainly with the 4th grade (51.3%). Most of the respondents do not live alone (79.4%) in agglomerations in rural region (57.0%) and are not users of social services (75.5%). Results: The sample is divided between those who had community participation throughout life (47.8 %; n = 271) and those who did not participated (52,2%; n = 296). Between the first, 16.7% do it with high frequency. The elderly women, aged less than 75 years old, married, with educational qualifications and living not alone, are those who have a higher likelihood of having a more active social participation. The elderly that present social participation have a larger network, with one more member (M = 8,52 vs. 7,51, p = 0,027), and a composition distinct from not participating, with less proportion of family relations (M = 72,61% vs. 80,81%, p < 0,001), greater proportion and more friendships (M = 15,43% vs. M = 9,24%, p < 0,001) and greater presence of working relations (M = 1,11% vs. 0,13%, p = 0,006). Regarding the functional dimension, the reciprocity of support is perceived as higher (p = 0.010) among seniors participating in community and there were no differences in other functional and relational-contextual variables. The level of participation and satisfaction with the level of participation correlate positively with perceived satisfaction with life (p <0.001). Conclusion: The findings point to an effect of lifelong social participation in community in structural characteristics of personal social networks of the elderly, not verifying interference in most of the functional and the contextual-relational characteristics. We have also found that there is an association between social participation and life satisfaction, being more satisfied when they participate in community structures. The social network of the elderly who reported having social participation tends to be larger and heterogeneous in composition compared with those without social participation, thus assuming importance in structuring a more diverse and extensive network, should be encouraged in order to promote a network with potentially positive resources and a more active aging.
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Em Portugal e no Mundo Ocidental a população está a envelhecer, colocando esta nova realidade enormes desafios à sociedade. A sua crescente relevância deve-se sobretudo às consideráveis repercussões a nível pessoal, familiar, sociopolítico e económico e que afetam pessoas de todas as idades e a sociedade como um todo, colocando desafios específicos relativamente às relações interpessoais, à qualidade de vida e à saúde mental na pessoa idosa. Deste modo, o presente trabalho tem como objetivo analisar a associação entre a qualidade de vida, a depressão e as características das redes sociais pessoais dos idosos. Participaram no estudo 317 indivíduos, sendo 202 do sexo feminino e 115 do sexo masculino, com idade igual ou superior a 65 anos, com uma média de 77 anos (DP=7,57). Na recolha de dados recorremos a três instrumentos: Geriatric Depression Scale (GDS Short Form 15), (Yesavage et al., 1983; Almeida & Almeida, 1999); Instrumento de Avaliação de Qualidade de Vida da OMS (WHOQOL), (OMS, 1998; Canavarro et al., 2006); Instrumento de Avaliação das Redes Sociais Pessoais (IARSP – Idosos), (Guadalupe, 2010; Guadalupe & Vicente, 2012). Dos resultados destacamos que as características funcionais da rede social pessoal se diferenciaram de forma estatisticamente significativa entre as subamostras de idosos segundo os níveis de qualidade de vida percebida. Saliente-se que, além da relação significativa entre a depressão e qualidade de vida, em que os idosos com um nível mais baixo de qualidade de vida percebida apresentam maiores níveis de depressão (p<0,001), as características funcionais das redes sociais apresentam uma associação clara com a qualidade de vida (p<0,005) e a maioria com a depressão (p<0,014), o que não acontece com as estruturais e com as relacionais-contextuais. Outros resultados indicam que indivíduos com diferentes níveis de qualidade de vida percebida possuem uma estrutura idêntica da rede social pessoal. Ao nível da análise da associação entre as variáveis funcionais da Rede Social Pessoal, Qualidade de Vida e Depressão, o modelo analítico transmite-nos indicadores de investigação e intervenção precisos, o que demonstra a necessidade da continuidade e aprofundamento do presente estudo num âmbito amostral mais alargado e heterogéneo. / In Portugal and in the eastern world, the aging of population creates huge challenges to societies. It's growing relevance is owed to considerable repercussions on the personal, familiar, socio-politic and economic level that affect people of all ages and society as a whole, creating specific challenges regarding interpersonal relationships, quality of life and mental health of the elderly. The current work has the objective of analyzing the association between quality of life, depression and the characteristics of personal social networks of the elderly. 317 individuals have participated in this study, 202 female and 115 male, with age equal or above 65 years old, with an average of 77 years old (DP=7,57). We used three assessment instruments to collect data: Geriatric Depression Scale (GDS Short Form 15), (Yesavage et al., 1983; Almeida & Almeida, 1999); WHO’s Quality of Life Evaluation instrument (WHOQOL) (WHO, 1998; Canavarro et al., 2006); Personal Social Network Analysis Tool (IARSP-Elderly),(Guadalupe, 2010; Guadalupe & Vicente, 2012). The results show that the functional personal network characteristics are significantly different according to their level of quality of life. It should also be noted that not only there is a significant association between depression and quality of life, in which elderly people with a lower quality of life level show higher levels of depression (p<0,001), there is also a clear association between the functional social network characteristics and quality of life (p<0,005), and the majority with depression (p<0,014), which doesn’t happen with structural and relational-contextual social network characteristics. Other results indicate that different levels of quality of life acquire an identical social network structure. On the matter of association between the functional variables of social networks, quality of fife and depression, the analytic model shows precise indicators of research and intervention, which instills us a need to continue and enlarge this study with an wider and more heterogeneous sample.
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Asian elephants (Elephas maximus) are critically endangered and live in fragmented populations spread across 13 countries. Yet in comparison to the African savannah elephant (Loxodonta africana), relatively little is known about the social structure of wild Asian elephants because the species is mostly found in low visibility habitat. A better understanding of Asian elephant social structure is critical to mitigate human-elephant conflicts that arise due to increasing human encroachments into elephant habitats. In this dissertation, I examined the social structure of Asian elephants at three sites: Yala, Udawalawe, and Minneriya National Parks in Sri Lanka, where the presence of large open areas and high elephant densities are conducive to behavioral observations. First, I found that the size of groups observed at georeferenced locations was affected by forage availability and distance to water, and the effects of these environmental factors on group size depended on site. Second, I discovered that while populations at different sites differed in the prevalence of weak associations among individuals, a core social structure of individuals sharing strong bonds and organized into highly independent clusters was present across sites. Finally, I showed that the core social structure preserved across sites was typically composed of adult females associating with each other and with other age-sex classes. In addition, I showed that females are social at all life stages, whereas males gradually transition from living in a group to a more solitary lifestyle. Taking into consideration these elements of Asian elephant social structure will help conservation biologists develop effective management strategies that account for both human needs and the socio-ecology of the elephants.