‘You Get More Respect,’ Reasons for Sex Among African American High School Youth: A Qualitative Study

ABSTRACT

African American adolescents continue to be disproportionately impacted by HIV, sexually transmitted infections (STIs), and unanticipated pregnancies. In-depth, face-to-face interviews among a convenience sample of 32 African American adolescents (16 male and 16 female) were used to explore the reasons why some adolescents decided to engage in sex while others chose to delay sexual debut. Data were analyzed using a thematic analysis. Among the overall sample, psychological motivations, external pressure, physical pleasure seeking, and relationship-related motivations were the major themes cited for engaging in sex by participants and their friends. External support, motivation to avoid negative consequences, not feeling ready or lacking interest in sex, and having negative views about sex were among the major reasons for delaying sex. Several of the emergent themes showed gender differences. Suggestions for future research include the need for sexual education, and STI/HIV prevention programs that are gender sensitive and flexible enough to accommodate multiple factors related to sexual debut.     

现浇混凝土板的裂缝分析与防治

在建筑结构中，随着商品混凝土的大量使用，混凝土楼面板出现裂缝的机率大大增加，并日益受到人们的关注。裂缝出现的原因复杂，既有温度变化、混凝土收缩、地基不均匀沉降等原因，也有设计、施工、材料和使用等方面的问题。本文根据工程实践经验，对现浇混凝土板的裂缝在设计、施工、材料等方面的成因进行了分析，并提出了相应的裂缝防治措施。     

云南省地质灾害的发育特征及防治对策

受自然条件的影响和制约,云南成为我国受地质灾害危害较重的省份之一.地质灾害的频发,严重威胁着人民群众的生命财产安全,制约着我省经济、社会的发展.如何加强地质灾害防治工作,提高防治效果,不仅是保障人民群众生命财产安全的迫切要求,也是实现全面小康,构建"和谐云南"的重要举措.文章在对我省地质灾害发育的特征、当前地质灾害防治工作中存在的主要问题进行分析的基础上,提出了加强地质灾害防治的对策建议.     

On bias reduction estimators of skew-normal and skew-t distributions

A particular concerns of researchers in statistical inference is bias in parameters estimation. Maximum likelihood estimators are often biased and for small sample size, the first order bias of them can be large and so it may influence the efficiency of the estimator. There are different methods for reduction of this bias. In this paper, we proposed a modified maximum likelihood estimator for the shape parameter of two popular skew distributions, namely skew-normal and skew-t, by offering a new method. We show that this estimator has lower asymptotic bias than the maximum likelihood estimator and is more efficient than those based on the existing methods.     

规模养殖户对疫病防控公共服务的满意度研究

利用霍邱、肥东、长丰三县调研数据,构建logit模型分析养殖户对疫病防控公共服务的满意度及其影响因素.研究结果表明,规模养殖户满意度受到养殖年数、预防免疫认知度、畜牧主管部门培训、畜牧兽医行政管理部门免疫消毒是否及时四个因素的高度影响,养殖时间越长、对预防免疫认知度越高、培训越规范、免疫消毒越及时,养殖户的满意表现越高;其次政府主导的防疫体系,其目标导向与养殖户自身的目标并不完全一致,是政府投入逐渐增加、防疫效果未能改善的主要原因.     

河南城镇化进程中的犯罪问题研究

河南省城镇化实施中心城市带动战略,对犯罪形势变化将产生深刻的影响:犯罪率将呈现先升后降最终稳定的态势;流动人口犯罪、青少年犯罪、女性犯罪、职务犯罪等将会激增;各种类型犯罪在短期内都会大量增加;一些社会管理控制相对薄弱的"边缘地带"有可能成为犯罪孳生地。河南省应实行综合治理的犯罪防控战略。     

社会学视角下女性犯罪的思考

从构建和谐社会的高度来思考女性犯罪的预防,就是通过关注女性这个弱势群体的教育状态与就业发展空间,正视女性犯罪的诱发因素,进而从提高女性自身素质与关注女性就业方面进行女性犯罪预防,以维护社会稳定,构建和谐社会.     

Schools must include faculty and staff in sexual violence prevention efforts

Creating a normative campus environment intolerant to sexual violence is important for prevention. While prevention initiatives focusing on students are vital, faculty and staff have a central role in supporting and sustaining a comprehensive strategy for preventing campus sexual violence. Nationwide, colleges and universities recently implemented campus climate surveys. At Emory, we decided to survey faculty and staff as well as students, motivated by our use of an ecological framing of campus sexual violence. Faculty and staff are long-term members of the community, and can provide stability and continuity that reinforces prevention efforts prioritized for students. We recommend that schools use a trauma-informed approach to guide the involvement of faculty and staff in prevention. We encourage colleges and universities to consider the experiences and needs of their faculty and staff, as professionals who serve as leaders on campus and as those who guide students through their academic experiences.     

On inference for Kendall's τ within a longitudinal data setting

Kendall's τ is a non-parametric measure of correlation based on ranks and is used in a wide range of research disciplines. Although methods are available for making inference about Kendall's τ, none has been extended to modeling multiple Kendall's τs arising in longitudinal data analysis. Compounding this problem is the pervasive issue of missing data in such study designs. In this article, we develop a novel approach to provide inference about Kendall's τ within a longitudinal study setting under both complete and missing data. The proposed approach is illustrated with simulated data and applied to an HIV prevention study.     

论中国共产党执政的内源性风险及防范

精神懈怠、能力不足、脱离群众、消极腐败,是我党在改革开放、社会转型进入关键时期所面临的四大内源性风险.苏东欧源于执政党内源性风险而引发的剧变,犹前车可鉴.我党执政的内源性风险,存在着随时引发危机的可能,预防和化解的策略必须坚决落实到位:加强党的思想建设,提升党的精神境界；加强党的组织建设,增强党的执政能力；加强党的作风...