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31.
We propose methods for detecting structural changes in time series with discrete‐valued observations. The detector statistics come in familiar L2‐type formulations incorporating the empirical probability generating function. Special emphasis is given to the popular models of integer autoregression and Poisson autoregression. For both models, we study mainly structural changes due to a change in distribution, but we also comment for the classical problem of parameter change. The asymptotic properties of the proposed test statistics are studied under the null hypothesis as well as under alternatives. A Monte Carlo power study on bootstrap versions of the new methods is also included along with a real data example.  相似文献   
32.
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   
33.
This study questions the role of migration policy changes in France, Italy, and Spain for return migration to Senegal, by analyzing biographic data from the Migration between Africa and Europe (MAFE‐Senegal) survey and the contextual data of the Determinants of International Migration (DEMIG) VISA and DEMIG POLICY databases that cover major changes in migration policies in these destination countries for the different categories of migrants. Event history logistic regressions reveal that Senegalese migrants are less likely to return when the entry restrictions have become tighter. This result suggests that the decision to return depends on the possibility of migrating again after the return, which is crucial for both theory and policy regarding Western democracies' attempts to regulate migration.  相似文献   
34.
The majority of LGBTQ psychological research focuses on dysfunction. The exclusion of strengths-based perspectives in LGBTQ psychology limits the understanding of LGBTQ mental health. In this article we report experiences that young bisexual and other nonmonosexual people perceive as affirming of their sexual identity. A 28-day, daily diary study was used to investigate whether bisexual-identified participants encountered positive experiences related to their sexual identity, and which type of experiences they perceived to be positive. Using a constructivist grounded theory approach, participants’ experiences were organized according to a social ecological model. Experiences were reported at the intrapersonal, interpersonal, and institutional levels, but most positive sexual identity experiences occurred at the interpersonal level. Implications for positive health outcome research and the integration of positive psychology with LGBTQ psychology are discussed, as well as study limitations.  相似文献   
35.
The objective of this research is to investigate the possible difference in accumulation of adversity over the life course among decedent gamblers and living control gamblers in the province of Quebec, Canada. A sample of 90 adult men, 41 living participants and 49 suicide decedents, met the criteria for at-risk and problem gambling over the last five years. Data were obtained from informants in the case of suicide and directly from living controls during semi-structured face-to-face interviews using SCID I and II, SOGS, Module K and a recount of life trajectories methodology. The results showed a high level of adversity throughout the life trajectories of both groups. However, the living gamblers faced more difficulties during their lifespan than the suicide victims. In the last six months before their death, suicide victims had a significantly higher number of mental health disorders, especially co-morbid mental health disorders and anxiety, compared to the living controls. We also observed a rapid escalation of difficulties, more life events and more psychological distress in the last six months of their lives among the suicide decedents. Suicidal behaviour needs to be carefully investigated by medical staff and mental health practitioners, especially when gamblers demonstrate evidence of mental health disorders or financial difficulties.  相似文献   
36.
The purpose of this article is to recover Williams as a major theoretical inspiration for the social sciences, specifically, as the inaugurator of what might be regarded as a research paradigm, cultural materialism. In the first section, Williams's encounter with the discipline of sociology is traced and distinguished as a critical alternative to the presently ascendant – at least in the USA – neo‐Durkeimian school of ‘cultural sociology’. In the second section, his cultural‐materialist programme is proposed as a powerful analytical framework for the study of culture and society today. In the final section, a key concept of Williams's cultural materialism, mobile privatization, is selected illustratively and proposed as a powerful analytical tool for studying the production and technological mediation of typical modes of communicative sociality in the early twenty‐first century.  相似文献   
37.
Disproportionality in special education includes the underrepresentation and overrepresentation of children by gender, economic status, race, ethnicity, language, and culture. This article reviews literature on disproportionality in the United States, Germany, Kenya, and India. Societal views of disability, classism, racism, and inequitable assessment are among the factors that contribute to disproportionality. Preventative medicine, equitable access to resources, ethical and effective assessment procedures, and educational practices that are gender equitable and culturally responsive may reduce the problem of disproportionality.  相似文献   
38.
Transnational Muslim NGOs are important actors in the field of development and humanitarian aid. Through micro-sociological case studies, this article provides new empirical insights on the organizational identity of some of these NGOs. Using the post 9.11. aid field as a window through which to explore transnational Muslim NGOs, the article analyzes the ways in which two of the largest Muslim NGOs Islamize aid and the kinds of Islam they construct in this process, discussing how this relates to their position in the contemporary aid field. The Saudi Arabian International Islamic Relief Organization and the British Islamic Relief serve as emblematic examples of transnational Muslim NGOs today, each presenting different ways of understanding Islam: One promotes an all-encompassing Islam, embedded in almost all aspects of the organization; while the other demonstrates a quasi-secular Islam, most often relegated to the personal sphere. Likewise, the two organizations Islamize aid in different ways, based on different interpretations of the Global War on Terror and mainstream development discourses. The article concludes that the positions of the two NGOs are best understood as poles in a continuum, stretching from an embedded Islam, encouraging a thoroughly Islamized aid and blocking integration into the field of mainstream development and humanitarian aid, to an invisible Islam, accompanied by an almost secularized aid and facilitating integration into the aid field.  相似文献   
39.
Physical spaces need to be adjusted to suit the changes of a physical, cognitive and emotional order occasioned by the natural aging of people. Ergonomics of the built environment contributes to improving the interaction of the user and physical environment, with a view to their comfort and safety. By thinking through the influence that environments have on the quality of life of the elderly, this article presents an assessment of accessibility in private units--bedrooms and bathrooms--of a Long-Stay Institution for the Elderly (ILPI in Portuguese) in Portugal. The analysis of the physical and spatial conditioning factors by means of the Ergonomics Methodology for the Built Environment (EMBE), proposed by VILLAROUCO (2008), gave evidence of the need for interventions to suitably adapt physical infrastructure, with the objective of promoting the physical well-being of the elderly, and thus, enhancing the autonomy and independence of a wider range of users.  相似文献   
40.
Carpal tunnel syndrome is one of the most costly upper extremity disorders in the working population. Past literature has shown an association between personal and work factors to a case definition of carpal tunnel syndrome but little is known about the combined effects of these factors with the development of this disorder. Few studies have examined these associations in longitudinal studies. The purpose of this paper is to identify risk factors for incident carpal tunnel syndrome in a longitudinal study of workers across a wide range of occupations.  相似文献   
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