885 resultados para social-proximity urban vehicular networks


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In 2001/02 five case study communities in both metropolitan and regional urban locations in Australia were chosen as test sites to develop measures of community strength on four domains: natural capital; produced economic capital; human capital; and social and institutional capital. Secondary data sources were used to develop measures on the first three domains. For the fourth domain social and institutional capital primary data collection was undertaken through sample surveys of households. A structured approach was devised. This involved developing a survey instrument using scaled items relating to four elements: formal norms; informal norms; formal structures; and informal structures which embrace the concepts of trust, reciprocity, bonds, bridges, links and networks in the interaction of individuals with their community inherent in the notion social capital. Exploratory principal components analysis was used to identify factors that measure those aspects of social and institutional capital, with confirmatory analysis conducted using Cronbach's Alpha. This enabled the construction of four primary scales and 15 sub-scales as a tool for measuring social and institutional capital. Further analyses reveals that two measures anomie and perceived quality of life and wellbeing relate to certain primary scales of social capital.

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O município de Rio Grande da Serra está situado em uma região Grande ABC paulista reconhecida nacionalmente por seu desenvolvimento econômico e industrial e pelas lutas políticas e sindicais. Paradoxalmente, se configura, social e territorialmente falando, por uma região de periferia urbana. Resultado da forma como a urbanização, na sociedade moderna, conforma o espaço em regiões centrais e periféricas. Localizado no caminho que ligava Santos à Mogi das Cruzes (século XIX) povoado de Geribatiba decorrente das transformações urbanas ocorridas em toda a região, conquistaria, nos anos 1960, sua autonomia político-administrativa. Nas décadas seguintes testemunhou intenso crescimento populacional, resultado do processo migratório, principalmente de mineiros e nordestinos que tinham as cidades, e indústrias, de São Paulo e Grande ABC como destino. Esse deslocamento de pessoas, e as redes formadas em seu em torno, contribuiu para o desenvolvimento de seu campo religioso. Atualmente, com uma população, em torno, de 46 mil habitantes, possui aproximadamente 180 locais de cerimônias religiosas. Nesse contexto, a tese analisa a inserção regional socioeconômica e religiosa de Rio Grande da Serra, a partir de dados comparativos com os demais municípios, e discute como o regionalismo tem contribuído para seu desenvolvimento econômico. Realiza a caracterização das periferias urbanas, discutindo aspectos que lhes são inerentes, como segregação e vulnerabilidade social. Nesse sentido, a investigação possibilitou a identificação do perfil socioeconômico (renda e escolaridade) dos participantes dos grupos religiosos (católicos, evangélicos, kardecistas e umbandistas), permitindo, também, identificar desigualdades sociais no interior de seu território, constatando que determinados bairros são mais vulneráveis do que outros. Considerando que esse estudo examina a capacidade das redes sociais e religiosas, de aumentar o capital social de seus participantes, foi realizado o mapeamento e etnografia das diversas práticas associativas, mais ou menos formais e estruturadas, de forma a analisar os elementos materiais e simbólicos por elas produzidos. Constatou-se, apoiado na aplicação de questionários, entrevistas e observação participativa, que, a partir do habitus religioso de cada grupo, as redes possibilitam no âmbito econômico questões como emprego e renda ou auxílio em necessidades básicas de sobrevivência, através de campanhas e trabalhos sociais. No âmbito simbólico, as redes propiciam questões importantes à existência humana, como a crença na salvação ou evolução da alma, socialização, autoestima, prestígio ou ainda a expectativa de cura ou tratamento de dependência química. Pôde-se aferir que, a despeito das diferentes formas como cada grupo, e seus participantes, se apropriam do capital social, as redes sociais e religiosas, no município, funcionam como redes de proteção, especialmente à população em situação alta de vulnerabilidade social.

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A presente pesquisa analisa igrejas evangélicas pentecostais no município de Rio Grande da Serra, região do Grande ABC Paulista. Busca identificar qual é o papel social desses grupos religiosos de grande crescimento no município junto aos seus membros em situação socioeconômica frágil, tanto quanto para a população carente da cidade. A partir de uma reflexão acerca da constituição de espaços territoriais periféricos , e das práticas associativas nesses espaços, nosso objetivo é estudar o associativismo religioso formal e informal, e a construção de redes sociais em seu entorno, e a sua contribuição para o aumento do capital social, entendido este, segundo Bourdieu, como agregado de benefícios materiais e simbólicos, de seus participantes. A pesquisa leva em consideração que a cidade caracteriza-se por ser uma região de periferia, em que parcela importante da população vive em situação de segregação, riscos e vulnerabilidade social.

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Purpose - The objective of this paper is to uncover the underlying dimensions of, and examine the similarities and differences in, personal uses of advertising, perceived socio-economic effects of advertising, and consumer beliefs and attitudes toward advertising in Bulgaria and Romania. Moreover, it aims to identify the relative importance of the predictors of attitudes toward advertising in the two countries. Design/methodology/approach - The paper draws upon findings of previous research and theoretical developments by Bauer and Greyser, Sandage and Leckenby, and Pollay and Mittal. The study uses a stratified random sample of 947 face-to-face interviews with adult respondents from major urban areas in Bulgaria (507) and Romania (440). Variables are measured on multi-item scales as a typical application of the reflective indicator model. Findings - Results show that there are significant differences between Romanian and Bulgarian respondents in terms of their attitudes toward advertising. Romanians are more positive about advertising as an institution than the instruments of advertising. Romanians seem to accept the role of advertising in a free market economy, but have less confidence in advertising claims and techniques. Bulgarian respondents seem more sceptical toward advertising in general and are less enthusiastic about embracing the role of advertising as an institution. Moreover, Bulgarians are highly negative towards the instruments advertising uses to convey its messages to consumers. Research limitations/implications - The research findings reflect the views of urban dwellers and may not be generalisable to the wider population of the two countries. Interviewer bias was reduced by eliminating verbal or non-verbal cues to the respondents, and by the use of stratified random sampling. Practical implications - The paper suggests that the regulatory role of codes of advertising practice and industry regulating bodies should be enhanced, and their ability to protect consumers enforced. Marketing campaigns should be more inclusive to involve diverse social groups and reflect generally-accepted social norms. Originality/value - This study reveals that, while general attitudes toward advertising may be similar, attitudes toward the institution and instruments of advertising may differ even in countries with geographic proximity and low cultural distance. © Emerald Group Publishing Limited.

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Recent times have witnessed a growing belief in urban spaces as 'assemblages' produced through interwoven and spatially differentiated forces that converge at particular sites. There is also continuing interest in the nature of neoliberal tendencies and the rise of post-politics and democracy in urban governance. These accounts typically lack attention towards the comprehensive conceptualization of the heterogeneous logics and mechanics of relations and negotiations between actors. This paper seeks to advance these perspectives by exploring the potential contribution of French pragmatism thinking to how social life is produced through practical dialogue between actors through critique, argumentation and justification. © The Author(s) 2012.

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In this poster we presented our preliminary work on the study of spammer detection and analysis with 50 active honeypot profiles implemented on Weibo.com and QQ.com microblogging networks. We picked out spammers from legitimate users by manually checking every captured user's microblogs content. We built a spammer dataset for each social network community using these spammer accounts and a legitimate user dataset as well. We analyzed several features of the two user classes and made a comparison on these features, which were found to be useful to distinguish spammers from legitimate users. The followings are several initial observations from our analysis on the features of spammers captured on Weibo.com and QQ.com. ¦The following/follower ratio of spammers is usually higher than legitimate users. They tend to follow a large amount of users in order to gain popularity but always have relatively few followers. ¦There exists a big gap between the average numbers of microblogs posted per day from these two classes. On Weibo.com, spammers post quite a lot microblogs every day, which is much more than legitimate users do; while on QQ.com spammers post far less microblogs than legitimate users. This is mainly due to the different strategies taken by spammers on these two platforms. ¦More spammers choose a cautious spam posting pattern. They mix spam microblogs with ordinary ones so that they can avoid the anti-spam mechanisms taken by the service providers. ¦Aggressive spammers are more likely to be detected so they tend to have a shorter life while cautious spammers can live much longer and have a deeper influence on the network. The latter kind of spammers may become the trend of social network spammer. © 2012 IEEE.

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Supply Chain Risk Management (SCRM) has become a popular area of research and study in recent years. This can be highlighted by the number of peer reviewed articles that have appeared in academic literature. This coupled with the realisation by companies that SCRM strategies are required to mitigate the risks that they face, makes for challenging research questions in the field of risk management. The challenge that companies face today is not only to identify the types of risks that they face, but also to assess the indicators of risk that face them. This will allow them to mitigate that risk before any disruption to the supply chain occurs. The use of social network theory can aid in the identification of disruption risk. This thesis proposes the combination of social networks, behavioural risk indicators and information management, to uniquely identify disruption risk. The propositions that were developed from the literature review and exploratory case study in the aerospace OEM, in this thesis are:- By improving information flows, through the use of social networks, we can identify supply chain disruption risk. - The management of information to identify supply chain disruption risk can be explored using push and pull concepts. The propositions were further explored through four focus group sessions, two within the OEM and two within an academic setting. The literature review conducted by the researcher did not find any studies that have evaluated supply chain disruption risk management in terms of social network analysis or information management studies. The evaluation of SCRM using these methods is thought to be a unique way of understanding the issues in SCRM that practitioners face today in the aerospace industry.

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DUE TO COPYRIGHT RESTRICTIONS ONLY AVAILABLE FOR CONSULTATION AT ASTON UNIVERSITY LIBRARY AND INFORMATION SERVICES WITH PRIOR ARRANGEMENT

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DUE TO COPYRIGHT RESTRICTIONS ONLY AVAILABLE FOR CONSULTATION AT ASTON UNIVERSITY LIBRARY AND INFORMATION SERVICES WITH PRIOR CONSULTATION

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This paper presents an analysis of whether a consumer's decision to switch from one mobile phone provider to another is driven by individual consumer characteristics or by actions of other consumers in her social network. Such consumption interdependences are estimated using a unique dataset, which contains transaction data based on anonymized call records from a large European mobile phone carrier to approximate a consumer's social network. Results show that network effects have an important impact on consumers' switching decisions: switching decisions are interdependent between consumers who interact with each other and this interdependence increases in the closeness between two consumers as measured by the calling data. In other words, if a subscriber switches carriers, she is also affecting the switching probabilities of other individuals in her social circle. The paper argues that such an approach is of high relevance to both switching of providers and to the adoption of new products. © 2013 Copyright Taylor and Francis Group, LLC.

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This PhD thesis analyses networks of knowledge flows, focusing on the role of indirect ties in the knowledge transfer, knowledge accumulation and knowledge creation process. It extends and improves existing methods for mapping networks of knowledge flows in two different applications and contributes to two stream of research. To support the underlying idea of this thesis, which is finding an alternative method to rank indirect network ties to shed a new light on the dynamics of knowledge transfer, we apply Ordered Weighted Averaging (OWA) to two different network contexts. Knowledge flows in patent citation networks and a company supply chain network are analysed using Social Network Analysis (SNA) and the OWA operator. The OWA is used here for the first time (i) to rank indirect citations in patent networks, providing new insight into their role in transferring knowledge among network nodes; and to analyse a long chain of patent generations along 13 years; (ii) to rank indirect relations in a company supply chain network, to shed light on the role of indirectly connected individuals involved in the knowledge transfer and creation processes and to contribute to the literature on knowledge management in a supply chain. In doing so, indirect ties are measured and their role as means of knowledge transfer is shown. Thus, this thesis represents a first attempt to bridge the OWA and SNA fields and to show that the two methods can be used together to enrich the understanding of the role of indirectly connected nodes in a network. More specifically, the OWA scores enrich our understanding of knowledge evolution over time within complex networks. Future research can show the usefulness of OWA operator in different complex networks, such as the on-line social networks that consists of thousand of nodes.