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21.
Objective. Currently, Latinos and African Americans constitute more than one‐quarter of the U.S. population. The sheer size of these groups suggests an opportunity for increased political influence, with this opportunity providing the incentive for greater social and political interaction between them. The objective of this article is to determine the role of Latino group consciousness in the formation of attitudes toward African Americans. Methods. Utilizing data from the 1999 Washington Post/Henry J. Kaiser Family Foundation National Survey on Latinos, a multivariate ordered logit model is employed to test the relationship between Latino group consciousness and perceptions of commonality with African Americans. Results. Results show that group consciousness in the form of Latino internal commonality and perceived discrimination are contributors to Latino perceptions of commonality with African Americans. Conclusion. This analysis demonstrates that before any meaningful political alliances can be formed between the nation's two largest minority groups, Latinos may need to develop strong levels of panethnic identity.  相似文献   
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We restrict attention to a class of Bernoulli subset selection procedures which take observations one-at-a-time and can be compared directly to the Gupta-Sobel single-stage procedure. For the criterion of minimizing the expected total number of observations required to terminate experimentation, we show that optimal sampling rules within this class are not of practical interest. We thus turn to procedures which, although not optimal, exhibit desirable behavior with regard to this criterion. A procedure which employs a modification of the so-called least-failures sampling rule is proposed, and is shown to possess many desirable properties among a restricted class of Bernoulli subset selection procedures. Within this class, it is optimal for minimizing the number of observations taken from populations excluded from consideration following a subset selection experiment, and asymptotically optimal for minimizing the expected total number of observations required. In addition, it can result in substantial savings in the expected total num¬ber of observations required as compared to a single-stage procedure, thus it may be de¬sirable to a practitioner if sampling is costly or the sample size is limited.  相似文献   
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ABSTRACT

This paper presents a case study of the development of a program in a large U.S. School of Social Work to train social work students to work with Latina/o populations entitled ‘Latino/a Initiatives for Service, Training, and Assessment’ (LISTA). Using a case study methodology, this work fills a current gap in the literature as it examines the programmatic and curricular dynamics associated with such an effort. The methods section details LISTA’s planning process and early implementation. This includes the demographic, theoretical, and professional context of the program along with the stages of curricular development. The results section examines LISTA’s current curriculum, including three courses, field placements and study abroad program, as well as its assessment processes. It further examines issues and challenges related to developing a new curricular emphasis in a graduate program, including funding, recruitment, and securing field placements. The discussion section provides a set of recommendations, including the institutionalization of mechanisms for community feedback and the recruitment of ethnic minority students and faculty. LISTA serves as a potential model for recruiting and training social workers to serve diverse ethnic minority populations.  相似文献   
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This paper examines the performance effects associated with different alliance portfolio configurations in terms of geographical location and partner type. Based on these distinctions, the authors hypothesize that more diverse alliance portfolios enable firms to gain and exploit innovation opportunities. Additionally, the mediating effects of R&D human and social capital on the R&D alliance portfolio diversity–innovation performance relationship are explored. The authors reason that the absorptive capacity of R&D intellectual capital determines a firm's potential gains from highly diverse alliance portfolios. From panel data of manufacturing firms in Spain for the period 2008–2013, the results confirm the inverted U‐shaped relationship between alliance portfolio diversity and firm innovation performance, implying that both insufficient and excessive alliance portfolio diversity may be detrimental to firm innovativeness. Additionally, R&D human and social capital partially mediates the R&D alliance diversity–innovation performance relationship, emphasizing the importance of internal capabilities to leverage the benefits of highly diverse alliance portfolios. These findings add a dynamic dimension to the conceptualization of alliance portfolios and how firms create value by balancing explorative and exploitative alliances.  相似文献   
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This paper is concerned with the ways in which women are sold cosmetic surgery, and how they ‘make sense of’ their own participation in this market. It draws on ongoing ethnographic research to explore how a group of young women who have paid for breast augmentation surgery narrate their decision to undergo surgery, the choices they make as consumers of cosmetic surgery, and their experience of having surgery. These narratives are compared with the ways in which breast augmentation surgery is sold to them by the companies and medical professionals involved in the rapidly expanding market for breast augmentation surgery. The paper shows how this particular group of young white working‐class women shift between imagining the breast augmentation operation as a simple beauty treatment and recognizing it as medical surgery, and explores how this shapes their perceptions of the risks and benefits of buying new breasts. It also shows how those who market such procedures manage and manipulate perceptions of the process of breast augmentation surgery and the risks that attend on it in an effort to encourage this form of consumption.  相似文献   
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This article describes a participatory research project, which explored four case studies of children and young people's successful political advocacy in Nicaragua. The analysis combined a human rights‐based approach and a human development approach, and included concepts of multiple settings and levels, interrelated participation spaces, children and young people's citizenship, inclusion and exclusion, democracy, advocacy and empowerment. The main problems faced by children and young people seeking to influence policy‐makers were identified as adultism, dependency and lack of accountability. The research identified pre‐conditions, participation spaces and ways of organising for effective advocacy, and facilitation methods that had proved effective. It concludes that children and young people who achieve effective advocacy are generally self‐empowered, but can count on effective adult support and facilitation. They work through coordination with the authorities and not by clashing with them, but need to ensure effective follow up if they want politicians to keep their promises.  相似文献   
29.
Promoting justice in therapeutic work with families demands an analysis of contextual factors such as race, ethnicity, gender, and social class in relationship to societal systems of power, privilege, and oppression. A broad understanding of these dynamics, however, is inadequate to inform our work with families whose social capital severely limits available life choices, social influence, and material resources. In this article, we describe working from a critical contextual perspective to consider how families gain and/or lose social capital through participation in multiple contexts. We introduce a technique for mapping social capitol within and across multiple systems as well as suggestions for interventions aimed at increasing the social well-being of low-status families. These include considering the dynamics of boundary crossing, recognizing and optimizing resistance to oppressive dynamics, finding ways to limit constraints and optimize opportunities, and developing webs of allies to support family functioning and access to resources. We offer the example of 13-year-old Pepe as a case in point.  相似文献   
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This paper examines the possibility of criticality in a nuclear waste repository. The estimated probabilities are rough bounds and do not entirely dismiss the possibility of a critical condition; however, they do point to the difficulty of creating conditions under which a critical mass could be assembled (i.e., corrosion of containers, separation of neutron absorbers from the fissile material, and collapse or precipitation of the fissile material). In addition, should a criticality occur in or near a container, the bounding consequence calculations showed that fissions from one critical event are quite small (<˜1020 fissions, if similar to aqueous and metal accidents and experiments). Furthermore, a reasonable upper bound of total critical events of 1028 fissions corresponds to only 0.1% of the number of fissions represented by the spent nuclear fuel inventory in a repository containing 70,000 metric tons of heavy metal (MTHM) (the expected size for the proposed repository at Yucca Mountain, Nevada).  相似文献   
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