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This paper reports on the developmental strategies, challenges and directions of the institutional repositories of the higher educational institutions in Hong Kong. The study integrates the size, content, full text and public accessibility of these repositories. The paper also compares archived output with research output as registered by the Hong Kong University Grants Committee. Percentages of archived work are low for journal and conference papers, but moderate for graduate theses. These deposit rates reflect the differing institutional policies. In recognizing these challenges, the Hong Kong Open Access Committee has been formed to address regional issues in knowledge sharing.  相似文献   
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Randomized response techniques are widely employed in surveys dealing with sensitive questions to ensure interviewee anonymity and reduce nonrespondents rates and biased responses. Since Warner’s (J Am Stat Assoc 60:63–69, 1965) pioneering work, many ingenious devices have been suggested to increase respondent’s privacy protection and to better estimate the proportion of people, π A , bearing a sensitive attribute. In spite of the massive use of auxiliary information in the estimation of non-sensitive parameters, very few attempts have been made to improve randomization strategy performance when auxiliary variables are available. Moving from Zaizai’s (Model Assist Stat Appl 1:125–130, 2006) recent work, in this paper we provide a class of estimators for π A , for a generic randomization scheme, when the mean of a supplementary non-sensitive variable is known. The minimum attainable variance bound of the class is obtained and the best estimator is also identified. We prove that the best estimator acts as a regression-type estimator which is at least as efficient as the corresponding estimator evaluated without allowing for the auxiliary variable. The general results are then applied to Warner and Simmons’ model.  相似文献   
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Condoms protect against human immunodeficiency virus (HIV)/sexually transmitted infections (STIs) and unintended pregnancy and are essential to sexual health efforts targeting young adults, who are disproportionately affected by both outcomes. Understanding condom use motives is critical to increasing condom use. Research in this area is limited, particularly regarding the roles of partners and relationship factors. Using a longitudinal sample of 441 young adults and 684 reported partnerships we examined associations between relationship factors and condom use motives (pregnancy prevention, disease prevention, or dual protection). Simultaneous multilevel models identified variables associated with motives; level-specific models identified the levels (individual, partnership, time) variables impacted motives. Participants reported choosing condoms for pregnancy prevention, disease prevention, and dual protection in 51%, 17%, and 33% of partnerships, respectively. Partner-specific factors varied, to a differing degree, across the three levels. Seven variables (duration, condom self-efficacy, commitment, sexual decision-making, power, and vulnerability to harm [HIV/STIs] and pregnancy) distinguished condom use motives. The level of this association varied but was most pronounced at the partner and individual levels. Researchers and practitioners should consider the impact of both individual- and partner-level factors on condom use motives, in both research and sexual health programs.  相似文献   
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This article extends Bourdieu’s field theory to explain how learning spaces in the Toronto folk and metal scenes create gendered access to a field-specific form of cultural capital: performance capital, or the instrumental and interpersonal skills required to perform music. Folk musicians develop performance capital in open-access spaces, such as workshops and open stages at local folk clubs, while metal musicians learn in private spaces such as garages, basements, and rented rehearsal rooms. Folk’s learning spaces are open to all aspiring musicians, while access to heavy metal’s learning spaces relies on social networks from which women are often excluded. These different processes of capital development can lead to greater or lesser opportunities for women to become cultural producers: In Toronto, women make up approximately five percent of heavy metal musicians, but almost half of practicing folk musicians.  相似文献   
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Since the early 1990s, the dominant consensus in the debate on land rights reform in sub‐Saharan Africa has been that external interventions to privatise land rights are usually inappropriate and likely to remain so. This article suggests that two elements in the debate – the scope for varying adjudication criteria, procedures and support systems in order to enhance equity, and the influence of a region's agro‐ecological and socioeconomic characteristics on the impacts of tenure change – merit further attention. The article urges a shift towards a more pragmatic approach, sensitive to the diversity of both physical and socio‐economic conditions within which tenure systems operate. Illustrative evidence is drawn from a relatively low‐potential farming region in eastern Kenya.  相似文献   
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Political indicators are widely used in academic writing and decision making, but remain controversial. This paper discusses the problems related to the aggregation functions they use. Almost always, political indicators are aggregated by weighted averages or summations. The use of such functions is based on untenable assumptions (existence of homogeneous substitution rates, total compensation, and strict monotonicity). We show through concrete examples how these hidden assumptions are likely to produce results that are basically an artifact of ad hoc decisions, which additionally contradict very fundamental notions common to all credible political theories. We suggest, also through example, that some—necessarily partial—solutions are possible.  相似文献   
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Practicing clinical psychologists reported that 5 to 10% of their patients are adoption triad members (Sass & Henderson, 1999) and yet recent studies concluded that the majority of psychologists are not being taught about adoption-related issues in their preservice raining (Post, 1999; Sass & Henderson, 1999). This article discusses the need for training on adoption in the context of the APA Guidelines and Principles for Accreditation of Programs in Professional Psychology; Domain D, which states that programs must provide students with relative knowledge and experiences about the role of cultural and individual diversity in psychological phenomenon as they relate to the science and practice of professional psychology (1996, p. 15), the omission of adoption from curricula, and potential ramifications of this absence.  相似文献   
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