Lesbians Define Themselves: Diversity in Lesbian Identification

Ninety-nine self-identified lesbians provided definitions of what being a lesbian meant to them. A content analysis revealed two major categories: politically-based definitions and nonpolitical definitions. The political definitions included two highly interrelated subgroups, one of definitions based on woman-identification and the other including a broader world view that included affiliations with other oppressed groups. Nonpolitical definitions included four subgroups; those who defined lesbianism as sex/love with women, lesbianism as a true essence, just happening to love a woman, and lesbianism as only one small aspect of the person. There were only a few differences between women who cited political definitions and those with nonpolitical definitions. Lesbians who provided political definitions were more likely to identify themselves as feminists, were more involved in political activities and slightly more of them had a history of depression and eating disorders. Lesbians who provided nonpolitical definitions were more likely to have children, to have been raised in a conservative religion, and to think that they were born as lesbians. Various interpretations of the categories of definitions are provided.     

Graphical Communication of Uncertain Quantities to Nontechnical People

Nine pictorial displays for communicating quantitative information about the value of an uncertain quantity, x , were evaluated for their ability to communicate , p ( x > a ) and p ( b > x > a ) to well-educated semi-and nontechnical subjects. Different displays performed best in different applications. Cumulative distribution functions alone can severely mislead some subjects in estimating the mean. A "rusty" knowledge of statistics did not improve performance, and even people with a good basic knowledge of statistics did not perform as well as one would like. Until further experiments are performed, the authors recommend the use of a cumulative distribution function plotted directly above a probability density function with the same horizontal scale, and with the location of the mean clearly marked on both curves.     

Exchange curves for fixing batch quantities

The problem considered is that of choosing batch quantities to minimize costs, subject to the constraints that neither overall set-up costs nor overall set-up time can be increased beyond certain limits. Theoretical and graphical solutions are obtained for two possible formulations of the problem, and a simple practical procedure is suggested.     

Development of a Preliminary Framework for Informing the Risk Analysis and Risk Management of Nanoparticles

Decisions are often made even when there is uncertainty about the possible outcomes. However, methods for making decisions with uncertainty in the problem framework are scarce. Presently, safety assessment for a product containing engineered nano-scale particles is a very poorly structured problem. Many fields of study may inform the safety assessment of such particles (e.g., ultrafines, aerosols, debris from medical devices), but engineered nano-scale particles may present such unique properties that extrapolating from other types of studies may introduce, and not resolve, uncertainty. Some screening-level health effects studies conducted specifically on engineered nano-scale materials have been published and many more are underway. However, it is clear that the extent of research needed to fully and confidently understand the potential for health or environmental risk from engineered nano-scale particles may take years or even decades to complete. In spite of the great uncertainty, there is existing research and experience among researchers that can help to provide a taxonomy of particle properties, perhaps indicating a relative likelihood of risk, in order to prioritize nanoparticle risk research. To help structure this problem, a framework was developed from expert interviews of nanotechnology researchers. The analysis organizes the information as a system based on the risk assessment framework, in order to support the decision about safety. In the long term, this framework is designed to incorporate research results as they are generated, and therefore serve as a tool for estimating the potential for human health and environmental risk.     

Operations Strategy Research in the POMS Journal

In this paper, we examine the operations strategy literature in the POMS journal to determine what has been learned and to suggest new directions for further study in this important area of research. Our review of this literature resulted in the selection of thirty‐one relevant articles, many of which draw upon multiple theoretical perspectives. We identify eight such theoretical perspectives, and go on to classify these perspectives in terms of the scope of inquiry employed in the research (focused versus aggregated) and the researcher's assumptions about choice processes (behavioral versus rational). In doing so, we show that this body of work is dominated by papers that draw upon theoretical perspectives enabling a more holistic scope of inquiry, with a bias towards a view of strategy as a highly rational process. Building on our systematic review and integration of the literature, we suggest multiple areas for future research.     

Children in Poverty: Do State Policies Matter?

Objective . Variations in childhood poverty are primarily responsive to changes in family structure and economic conditions. Some research also suggests that federal and state programs may help alleviate poverty among children. This research incorporates measures of family characteristics, economic conditions, and policy variables in estimating changes in childhood poverty among the U.S. states. Methods . The research design is a pooled time series for all 50 states for the years 1987–1996. Results . Economic and family circumstances indeed are the major forces affecting children in poverty among the states. The unemployment rate for females, the percentage births to unmarried mothers, and the percentage of single-parent families are especially useful estimators. Public policies are important as well: the state or federal minimum wage, Aid to Families with Dependent Children/food stamp payments, the Earned Income Tax Credit, and two measures of state child support effort. Conclusions . Although at times controversial, actions by the states and federal government can help reduce childhood poverty among U.S. states.     

Categorizing Risks for Risk Ranking

Any practical process of risk ranking must group hazards into a manageable number of categories. Defining such categories requires value choices that can have important implications for the rankings that result. Most risk-management organizations will find it useful to begin defining categories in terms of environmental loadings or initiating events. However, the resulting categories typically need to be modified in light of other considerations. Risk-ranking projects can benefit from considering several alternative categorization strategies and drawing upon elements of each in developing their final categorization of risks. In principle, conducting multiple ranking exercises by using different categorizations could be interesting and useful. In practice, agencies are unlikely to have either the resources or patience to do this, but other groups in society might. Done well, such additional independent rankings could add valuable inputs to democratic risk-management decision making.     

A mixed-method exploratory study of interprofessional education in social work at historically Black colleges and universities: A faculty perspective

ABSTRACT

A mixed-method approach was used to capture social work faculty experiences in integrating interprofessional education (IPE) in the social work curriculum at historically Black colleges and universities (HBCUs). Questions measured attitudes, needs, preparation, and readiness of HBCU faculty to participate in preprofessional and graduate IPE courses. Both quantitative and qualitative analyses were used. The 23 participants indicated that there was strong interest and endorsement for participation in IPE as an educational tool to improve interdisciplinary team work and social care outcomes. However, faculty had limited previous involvement with IPE courses. Many partners were identified for IPE courses with almost all endorsing alcohol and substance abuse counseling, mental health counseling, public health, early childhood education, nursing, rehabilitation counseling, school of divinity, and school of psychology. The following IPE teaching methods were endorsed by almost all of the faculty: seminars, IPE common tools, case analysis, collaborative assessment, role playing, and experiential activities. Qualitative analysis of the open-ended questions yielded five themes: designing/evaluating IPE programs, embedding IPE courses in the social work curriculum, facilitating trust among faculty, removing negative IPE stereotypes, and IPE courses sustainability. The study contributes vital information about an important group of stakeholders whose participation in IPE, heretofore not mentioned in the IPE literature, needs to be integrated. We recommend that the IPE higher education community work with HBCUs to implement IPE.     

Variance estimation for integrated population models

State-space models are widely used in ecology. However, it is well known that in practice it can be difficult to estimate both the process and observation variances that occur in such models. We consider this issue for integrated population models, which incorporate state-space models for population dynamics. To some extent, the mechanism of integrated population models protects against this problem, but it can still arise, and two illustrations are provided, in each of which the observation variance is estimated as zero. In the context of an extended case study involving data on British Grey herons, we consider alternative approaches for dealing with the problem when it occurs. In particular, we consider penalised likelihood, a method based on fitting splines and a method of pseudo-replication, which is undertaken via a simple bootstrap procedure. For the case study of the paper, it is shown that when it occurs, an estimate of zero observation variance is unimportant for inference relating to the model parameters of primary interest. This unexpected finding is supported by a simulation study.     

Sexual Behavior Among Young Carers in the Context of a Kenyan Empowerment Program Combining Cash-Transfer,Psychosocial Support,and Entrepreneurship

This study examined associations between sexual initiation, unprotected sex, and having multiple sex partners in the past year with participation in a three-year empowerment program targeting orphan and vulnerable children (OVC). The Kenya-based program combines community-conditioned cash transfer, psychosocial empowerment, health education, and microenterprise development. Program participants (n = 1,060) were interviewed in a cross-sectional design. Analyses used gender-stratified hierarchical logit models to assess program participation and other potential predictors. Significant predictors of increased female sexual activity included less program exposure, higher age, younger age at most recent parental death, fewer years of schooling, higher food consumption, higher psychological resilience, and lower general self-efficacy. Significant predictors of increased male sexual activity included more program exposure, higher age, better food consumption, not having a living father, and literacy. Findings support a nuanced view of current cash transfer programs, where female sexual activity may be reduced through improved financial status but male sexual activity may increase. Targeting of OVC sexual risk behaviors would likely benefit from being tailored according to associations found in this study. Data suggest involving fathers in sexual education, targeting women who lost a parent at a younger age, and providing social support for female OVC may decrease risk of human immunodeficiency virus (HIV) transmission.