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11.
In this article, we extract common factors from a cross-section of U.S. macro-variables and Treasury zero-coupon yields. We find that two macroeconomic factors have an important predictive content for government bond yields and excess returns. These factors are not spanned by the cross-section of yields and are well proxied by economic growth and real interest rates.  相似文献   
12.
As known, the least-squares estimator of the slope of a univariate linear model sets to zero the covariance between the regression residuals and the values of the explanatory variable. To prevent the estimation process from being influenced by outliers, which can be theoretically modelled by a heavy-tailed distribution for the error term, one can substitute covariance with some robust measures of association, for example Kendall's tau in the popular Theil–Sen estimator. In a scarcely known Italian paper, Cifarelli [(1978), ‘La Stima del Coefficiente di Regressione Mediante l'Indice di Cograduazione di Gini’, Rivista di matematica per le scienze economiche e sociali, 1, 7–38. A translation into English is available at http://arxiv.org/abs/1411.4809 and will appear in Decisions in Economics and Finance] shows that a gain of efficiency can be obtained by using Gini's cograduation index instead of Kendall's tau. This paper introduces a new estimator, derived from another association measure recently proposed. Such a measure is strongly related to Gini's cograduation index, as they are both built to vanish in the general framework of indifference. The newly proposed estimator is shown to be unbiased and asymptotically normally distributed. Moreover, all considered estimators are compared via their asymptotic relative efficiency and a small simulation study. Finally, some indications about the performance of the considered estimators in the presence of contaminated normal data are provided.  相似文献   
13.
This article provides the most recent U.S. prevalence estimates of forced sex and unwanted sexual activity. Results of a national telephone survey conducted in 2001-2003 indicate that 1 in 59 U.S. adults (2.7 million women and 978,000 men) experienced unwanted sexual activity in the 12 months preceding the survey and that 1 in 15 U.S. adults (11.7 million women and 2.1 million men) have been forced to have sex during their lifetime. There were 60.4% of females and 69.2% of males who were 17 years old or younger at the time the first forced sex occurred. This study provides an update to the National Violence Against Women Survey with more recent national data. Findings suggest that victimization rates have remained consistent since the 1990s. These findings suggest that a continued effort toward primary prevention of sexual violence, particularly rape of children and adolescents, is needed.  相似文献   
14.
What might deaf studies and autistic studies have in common? Why, in many cases, is deafness considered to be a norm to be analyzed through linguistic and cultural frameworks, while autism is (still) seen as pathological? Utilizing ethnographic research, participation in two conferences on autism and sign language, and an analysis of deaf peoples’ and autistic peoples’ self-(re)presentation, we attend to sensory solidarities that might exist between deaf and autistic people, communities, and studies. We argue that an analysis of the two fields side-by-side offers important insights into new ways of conceptualizing sociality, identity, and community both in the specific cases of deafness and autism, and more broadly. Additionally, attending to deaf and autistic peoples’ language and communication desires and practices opens up analytic and empirical space for considering interdependent and multimodal communicative approaches.  相似文献   
15.
A growing body of literature highlights the association between women who have experienced intimate partner abuse (IPA) and their heightened risk for HIV/AIDS (human immune deficiency syndrome/ acquired immune deficiency syndrome) infection. Finding HIV risk reduction strategies that are contextually relevant for this population is an important public policy priority. This qualitative study researched women who have experienced intimate partner abuse in order to develop a HIV/AIDS risk reduction intervention unique to their circumstances. This pilot study explored the critical components of such an intervention among a racially/ethnically stratified (African-American, Mexican-American and Anglo) sample of women (n=43) who have experienced IPA. Focus groups were conducted and transcribed, and a content analysis was used to identify major themes. In all five focus groups, participants viewed the research as interesting, good, beneficial, and/or important based on their perceptions of risk for infection. Respondents felt that they knew of ways to protect themselves from infection in non-abusive relationships; however, acknowledged the difficulties of doing so given the context of their abusive relationships. Examining the racial/ethnic differences across focus groups showed that the language used by women is quite variable. The ways in which survivors define rape, sexual abuse, and their own experiences are all unique; however, their actual experiences have many similarities. Discussed at length are the topics participants shared as critical in informing the design of an intervention and the relevance of the findings to social work clinical practice is explained.  相似文献   
16.
The present paper develops and tests two temporal models of the relationships among adolescents' ethnic identity exploration, ethnic identity affirmation and belonging, and attitudes toward their racial/ethnic ingroup and outgroups. Structural equation models for Euro‐Americans, Asian Americans, and Latinos revealed that all hypothesized relationships were positive and significant. The model in which ethnic identity exploration (at Time 1) predicts ethnic identity affirmation and belonging (at Time 2) was superior to the alternative model in which the relationship between them was reversed (i.e., affirmation and belonging at Time 1 predicts exploration at Time 2). Results (1) support the importance of exploration as a basis for establishing a secure attachment to one's ethnic identity, which, in turn, has positive implications for attitudes toward one's own group and other groups and (2) suggest that maintenance of ethnic identity is compatible with positive attitudes toward ethnic outgroups.  相似文献   
17.
This article charts the response of social work educators in addressing HIV–AIDS. Based at the University of the West Indies in the Republic of Trinidad and Tobago, the faculty within the Social Work Unit developed a model of teaching, research and practice that was innovative and transcended cultural, geographical and professional boundaries. The model has contributed a lasting legacy of knowledge and culturally relevant practices to enhance the capacity and effectiveness of social workers working with people living with HIV–AIDS (PLWHIV). Inherent in the propositions that underpinned the model was a belief in the role of education in alleviating psychosocial and other impacts of social problems. This article describes this unique initiative and discusses its relevance to current social work practice and the implications for contemporary social work education. The authors argue that while social work draws on a common body of knowledge, an established set of professional skills and a universal code of values, these central tenets of the profession should not be regarded as concrete and fixed but must be figured and reconfigured as needed to address emerging contemporary problems and their specific sociocultural manifestations.  相似文献   
18.
As approaches to positive youth development (PYD) gain momentum, the issue of sexuality – a critical component of human development – is being subsumed by ideological debates. In the current political climate, sexuality education is often relegated to biological and/or values-based approaches, neglecting essential relational and collective aspects of sexuality. Through the explication of sexuality as an important component of youth's social ecology, this paper provides a conceptual link between the goals of the Sexuality Information and Education Council of the United States' (SIECUS) Guidelines for comprehensive sexuality education and those of PYD. We argue that sexuality, as a normative part of human development, culture, identity, and relationships, be approached from an asset-based perspective, rather than a deficit-based perspective. We propose a framework that illustrates how aspects of sexuality are embedded within PYD contexts, and demonstrates how a sexuality education program rooted in SIECUS guidelines can further PYD goals across community contexts.  相似文献   
19.
20.
Disclosure of child sexual abuse can be a stressful experience for the child. Gaining a better understanding of how best to serve the child, while preserving the quality of their disclosure, is an ever-evolving process. The data to answer this question come from 51 children aged 4–16 (M = 9.1, SD = 3.5), who were referred to a child advocacy center in Virginia for a forensic interview (FI) following allegations of sexual abuse. A repeated measures design was conducted to examine how the presence of a service-trained facility dog (e.g. animal-assisted intervention (AAI) may serve as a mode of lowering stress levels in children during their FIs. Children were randomized to one of the two FI conditions: experimental condition (service-trained facility dog present-AAI) or control condition (service-trained facility dog not present- standard forensic interview). Stress biomarkers salivary cortisol, alpha-amylase, immunoglobulin A (IgA), heart rate, and blood pressure, and Immunoglobulin A were collected before and after the FI. Self-report data were also collected. Results supported a significant decrease in heart rate for those in the experimental condition (p = .0086) vs the control condition (p = .4986). Regression models revealed a significant decrease in systolic and diastolic blood pressure in the experimental condition (p = .03285) and (p = .04381), respectively. Statistically significant changes in alpha-amylase and IgA were also found in relation to disclosure and type of offense. The results of this study support the stress reducing effects of a service-trained facility dog for children undergoing FI for allegations of child sexual abuse.  相似文献   
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