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1.
Comparison of Four New General Classes of Search Designs   总被引:1,自引:0,他引:1  
A factor screening experiment identifies a few important factors from a large list of factors that potentially influence the response. If a list consists of m factors each at three levels, a design is a subset of all possible 3 m runs. This paper considers the problem of finding designs with small numbers of runs, using the search linear model introduced in Srivastava (1975). The paper presents four new general classes of these 'search designs', each with 2 m −1 runs, which permit, at most, two important factors out of m factors to be searched for and identified. The paper compares the designs for 4 ≤ m ≤ 10, using arithmetic and geometric means of the determinants, traces and maximum characteristic roots of particular matrices. Two of the designs are found to be superior in all six criteria studied. The four designs are identical for m = 3 and this design is an optimal design in the class of all search designs under the six criteria. The four designs are also identical for m = 4 under some row and column permutations.  相似文献   
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Because midwifery in the United States is an occupation at the margins of medicine, midwives must frequently negotiate competing identity claims. This article examines the public identity work of a group of midwives by focusing on two important tools they use to accomplish this work: boundary negotiation and impression management. Drawing on data from in‐depth interviews with twenty‐six licensed, nurse, and empirical midwives in the state of Florida, this article illustrates the ways in which midwives frame their identities in relation to history and media representations and manage public identities through boundary negotiation and impression management. I argue that the marginality of this occupation lends itself to competing categories of identity that midwives must negotiate. These categories become salient when midwives confront historical and media representations of childbirth and midwifery as well as the perceptions of the general public, consumers, lawmakers, and medical professionals.  相似文献   
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The frenzy of health care reform activity now led by the Clinton Administration's American Health Security Act of 1993 might end in the worst of all possible outcomes: a new government entitlement program financed by business and a global budget. Unbridled entitlement could drive utilization of benefits to the maximum and, with a budget cap, guarantee rationing. So far, the administration has talked about expanding access and controlling costs--not about the health care product. Given the threat that change poses for vested interests, time will undoubtedly lapse before final implementation of a new system. Unless physicians involved in health management seize the opportunity during this window of opportunity to help shape the future of health care delivery, the likelihood of preserving the U.S. health care delivery system as we know it will be dim indeed.  相似文献   
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During the summer of 1972 in-depth interviews were conducted with 96 Shoshone and Arapahoe Indian women living on the Wind River Reservation in Central Wyoming. All were aged 15-49 and were users of the reservation health service. It was found the women fell into 4 groups: current contraceptive users, 42.7%; pregnant or seeking to become pregnant, 10.4%; infertile due to menopause or sterilization, 18.8%; and fertile never-users, 28.1%. The contraceptive users tended to be older, married, and have as many children as they want. The fertile never-users tended to be in their teens and generally unmarried. When asked why they did not use contraception their answer was 'because I am not married.' It is suggested that general education on contraception be provided the younger women so that when they achieve desired family size they will be informed as to family planning methods. It was found that religious belief against contraception was important to the young never-users, but not to the women who had completed their families. In fact, 73% of the users said their religion, which most identified as Roman Catholicism, had no influence on their contraceptive use while 27% said they were aware of church disapproval but used contraception anyway.  相似文献   
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This paper presents a qualitative analysis of front‐line practices regarding emergency removals in Finnish and Irish child protection. It examines how the responses to children's immediate danger are framed by legislation and how front‐line practitioners assess the child's situation and make emergency placement decisions. The data consist of interviews with 16 Irish and 33 Finnish social workers. These child welfare protection systems respond differently to a task that appears to be similar. The Irish team‐based practice rests on the social workers' shared assessment of the child's needs, and the formal decision is made by the courts (or police officers at night‐time); and the Finnish practice involves only one single social worker who makes both the assessment and the removal decision. The Irish system is tightly time regulated, whereas the Finnish system provides a more flexible time frame. Both approaches put a lot of stress on social workers' practice, which also includes creative workarounds (e.g., “planned emergency removals” in Finland). Future research will need to explore these features from the point of view of a child's right to protection.  相似文献   
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This study investigated a potential moderator of the association between popularity and relational aggression: social dominance orientation (SDO), the degree to which an individual endorses the importance of social hierarchy. One hundred eighty‐five ninth graders completed a sociometric assessment of RA and popularity, and a self‐report SDO measure. SDO was positively associated with popularity for both boys and girls, and with RA for girls. Popularity and RA were positively correlated for both genders. Regression analyses showed that SDO moderated the association between popularity and RA for girls, but not for boys. Girls who were both popular and who were social dominance‐oriented were particularly high in peer‐nominated RA. SDO may provide a useful framework for understanding the role of popularity in adolescent peer groups.  相似文献   
8.
La gouvernance privée telle qu'elle découle des différentes initiatives prises par les multinationales pour promouvoir le respect de normes sociales et l'égalité hommes‐femmes a eu peu d'effet sur les discriminations fondées sur le genre dans les chaînes d'approvisionnement mondiales. Les auteures soulignent l'intérêt des Principes directeurs des Nations Unies relatifs aux entreprises et aux droits de l'homme en la matière, estimant qu'il est indispensable de recourir à une gouvernance «stratifiée» associant public, privé et acteurs sociaux pour lutter contre cette discrimination et intégrer le souci de l'égalité des sexes dans l'exercice de la diligence raisonnable exigée en matière de droits de l'homme.  相似文献   
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Recent work has documented the need to engage with how men construct masculinities within postfeminist discourses in the workplace. Postfeminism has sparked debates concerning the changing ideals of masculinities, highlighting the tensions between traditional forms of patriarchy and ‘new’ ways of being a man (e.g., emotional, a ‘new father’, in crisis). Men have been depicted as being in search of a new identity, opposed to the ever‐growing confidence and empowerment of women. In mobilizing postfeminism as a discourse, this article illustrates how men working in an Italian pharmacological research centre (managed by men but dominated by women) assume subject positions that contradictorily fluctuate between tradition and fluid modernity, to reveal a masculinity which we identify with the ‘new industrial man’. The postfeminist masculinities exposed in the analysis mesh pro‐ and anti‐feminist ideas by appealing to un/heroic and romanticized subjectivities. The analysis also shows how un/heroic masculinities and men's appeal to biological differences to reinforce social ones and devalue the feminine obfuscate organizational gender inequalities. The article advances masculinity theory by offering a nuanced analysis of how masculinities and men are affected by paradoxical contemporary pressures for more egalitarian gender relations and a renewed emphasis on patriarchal traditions, which continue to support the gendering of the workplace.  相似文献   
10.
Viewed as outsiders clinging onto links with their country of origin, immigrants do not often feature positively in electoral politics in their host society. Challenging this conventional view, this article examines how immigrants make use of their transnational ties to foster their political participation in the host state. This exploration is conducted through our study of the political participation of Vietnamese and Chinese immigrants in Taiwan. Our research finds that transnational ties are politicized by the mainstream political parties. However, such politicization does not necessarily restrict immigrants’ agency and their sociopolitical space for political participation. Their transnational ties constitute a dynamic sociopolitical field in which these maintained connections are acted upon and give rise to a variety of strategies for responding to issues affecting their interests.  相似文献   
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