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Unquestionably, the zeitgeist of Web 2.0 is symbolized by the dominance of social networking sites (SNS) and user-created content (UCC). MySpace, Facebook, and Cyworld mini-hompy are but a few examples of SNS that are becoming increasingly part of urban everyday life and interwoven into the historicity of the Internet. Web 2.0 has promised much about new forms of participation, creation, collaboration, and authorship, and yet within each location, we can find examples of both empowerment and exploitation. This is particularly the case in the divergent region of the Asia-Pacific. Rather than the region being a sum of “imagined communities” (Anderson 1983), this paper argues that the distributed social networks of Web 2.0 UCC is formed, informed, and maintained through the perpetual process of “imaging communities.” These imaging communities can be seen in the visual, textual, and aural modes of UCC and can be seen to reflect the region’s new technocultural cartographies.  相似文献   
225.
Many studies have demonstrated that organisations exert a powerful impact on their members, but the mechanisms through which this occurs are not well understood. In the present paper, using social identity and self-categorisation theories as theoretical frameworks, we explore the role that social identity plays in affecting individual well-being of staff ( N = 113) and students ( N = 693) in two Australian high schools. Well-being includes positive aspects of personal functioning, such as self-esteem, positive affect, and job involvement, but also negative aspects, such as depression, anxiety, loss of emotional control, aggressive and disruptive behaviour. In line with predictions, social identification was significantly related to, and mediated the relationship between, organisational factors and individual psychological well-being. This work provides a bridge between social psychological concepts and the clinical and educational domains. It reinforces the need to integrate the role of the social self and social identity processes in understanding the (individual) psychology of the person.  相似文献   
226.
As an initial step toward developing a theory of visual concealment, we assessed whether people would use factors known to influence visual search difficulty when the degree of concealment of objects among distractors was varied. In Experiment 1, participants arranged search objects (shapes, emotional faces, and graphemes) to create displays in which the targets were in plain sight but were either easy or hard to find. Analyses of easy and hard displays created during Experiment 1 revealed that the participants reliably used factors known to influence search difficulty (e.g., eccentricity, target—distractor similarity, presence/absence of a feature) to vary the difficulty of search across displays. In Experiment 2, a new participant group searched for the targets in the displays created by the participants in Experiment 1. Results indicated that search was more difficult in the hard than in the easy condition. In Experiments 3 and 4, participants used presence versus absence of a feature to vary search difficulty with several novel stimulus sets. Taken together, the results reveal a close link between the factors that govern concealment and the factors known to influence search difficulty, suggesting that a visual search theory can be extended to form the basis of a theory of visual concealment.  相似文献   
227.
We present a Hilert style axiomatisation for the set of formulas in the temporal language withF andP which are valid over non-transitive cyclical flows of time.We also give a simpler axiomatisation using the slightly controversial irreflexivity rule and go on to prove the decidability of any temporal logic over cyclical time provided it uses only connectives with first-order tables.  相似文献   
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This study employed constructs derived from theories of social identity and collective action to test predictors of feminist social identity. The sample consisted of 95 Anglos, 36 African-Americans, 38 Asians, 43 Latinas, and 14 women who chose not to disclose their ethnicity. A two-step hierarchical multiple regression on these data showed that, as a group, positive evaluation of feminists, positive opinion of the feminist movement, exposure to feminism, recognition of discrimination against women, and belief in collective action contributed significantly to the prediction of feminist social identity, after support for feminist goals was entered into the equation. For a subsample of 36 African-American women, intercorrelations showed that racial identification, as well as a perception of conflict between racial identity and feminist identity, are compatible with aspects of feminist beliefs and values. Nevertheless, substantial differences between white women and women of color were found in willingness to socially identify as a feminist. Results support the importance of distinguishing between private feminist self-labeling and more social forms of feminist identification.  相似文献   
229.
Research articles appearing in five major journals from 1974 to 1980 were categorized in 1 of 16 categories as determined by the major theme of the paper. A chi-square analysis was used to determine whether years differed in relative distribution of observations across the categories. Spearman's rho correlation coefficients were calculated for the rank order of categories between each pair of years, allowing for comparison of the current data with O'Callaghan's (1974) data. Results indicate a significant change in content of articles published over the 7-year period. Articles concerning instrument development and validation account for the relatively largest percentage of total articles published in the 1974–1980 period and have continued to increase since the 1967–1973 period examined by O'Callaghan. Schools and agencies primarily contributing to this research are identified across the 7-year time span. Results are discussed in terms of the professional literature's potential reflection of the role of the school psychologist.  相似文献   
230.
In this replication research 49 mothers verbally estimated a 40-sec. interval each day for the first seven days after delivery. Throughout this postpartum period mothers overestimated the time interval. Findings of this study confirmed the results of the original 1987 research.  相似文献   
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