Comparing cumulative index and factor analytic approaches to measuring maltreatment in the National Longitudinal Study of Adolescent to Adult Health

Child maltreatment is a complex and multifaceted construct in need of advanced statistical techniques to improve its measurement. The current study compared the predictive utility of a cumulative index to a factor analytic approach for constructing a measure of maltreatment. Data were from Waves III and IV of the National Longitudinal Study of Adolescent to Adult Health (Wave III: n = 14,800; Wave IV: n = 12,288). As adults, participants retrospectively reported on their childhood experiences of physical abuse, sexual abuse, emotional abuse, physical neglect, supervisory neglect, and social services investigations. Both the cumulative index and a two-factor solution showed evidence of convergent validity, predicting lifetime incidence of homelessness, being paid for sex, and various measures of running away or living apart from biological parents, and prospectively predicting depression, substance use, and criminal behavior. The latent variables, derived from a factor analytic approach, had greater explanatory power for many outcomes compared to the cumulative index, even when controlling for sociodemographic variables. Results suggest that factor analysis is a better methodology than a cumulative index for measuring maltreatment in large datasets when explanatory power for external outcomes is of greatest concern.     

“双一流”背景下师范院校教师发展服务支持现状及路径

文章通过对4所师范类国家级示范教师发展中心工作的目标、内容、结果、特色的梳理,了解教师发展服务支持的四个疑问、四个转变,以及提出师范院校如何更好地为教师发展提供服务支持的四个创新。     

Carnosine in health and disease

Abstract

Carnosine was originally discovered in skeletal muscle, where it exists in larger amounts than in other tissues. The majority of research into the physiological roles of carnosine have been conducted on skeletal muscle. Given this and the potential for muscle carnosine content to be increased with supplementation, there is now a large body of research examining the ergogenic effects (or otherwise) of carnosine. More recent research, however, points towards a potential for carnosine to exert a wider range of physiological effects in other tissues, including the brain, heart, pancreas, kidney and cancer cells. Taken together, this is suggestive of a potential for carnosine to have therapeutic benefits in health and disease, although this is by no means without complication. Herein, we will provide a review of the current literature relating to the potential therapeutic effects of carnosine in health and disease.     

对《体育与健康》课程学习和成绩评定的理论研究

本文以《体育与健康》新课程为主线,为如何建构体育教育中的学生学习评价和成绩评定体系提出了一些看法和意见。其目的是为了进一步深化体育教学改革,提高体育教学质量,提供理论依据。     

青少年篮球运动员基本技战术调练中的几个问题

通过调研和资料分析 ,指出我国青少年篮球运动员基本技战术训练中存在的主要问题是教练员对基本技术动作训练要求不严等 ,并提出相关解决方法 ,供同行参考。     

普通高校保健体育课现状调查及对策分析

本文对西安市部分(20所)高蒋及学生(随机抽取陕西师大99级、2000绵学生437名及已经参加体育保健班的学生患者的12 5%,并且只有24 5%的参加者认为现行保健班参自己的康复有作用。开设保健班的高校仅占80%,并且教学上有欠规范,教学内容缺乏针对性,师资达不要求。结论:高校保健康复体育教学的改革势在必行。     

Managing Health Care in Oregon: The Search for a Civic Bioethics

Managed health care deliberations in Oregon point to a "civic bioethics" model to resolve allocation issues through publicly articulated community values and priorities that influence legislative action. Communication practices in the Oregon experiment provide data to develop an evaluative framework to assess public moral deliberation in value-laden contexts such as health care distribution. The Oregon experience also points to dialogical virtues to heighten citizens' ethical sensibilities and political will, discursive tools to inform ethical communication practices in a civic bioethics model.     

谈谈大学英语听力课教学存在的问题及对策

笔者不久前以书面问卷的形式对学生不喜欢听力课的原因进行了调查。通过对问卷调查的对比分析，提出大学英语听力课教学相关的对策。     

21世纪普通高校体育教育前景展望

本文通过对 2 1世纪普通高校体育教育前景的研究分析 ,发现在新世纪高校体育教育面临着多种挑战 ,高校体育教育要发展就必须紧跟时代发展的步伐 ,高校体育健康教育改革必须是全方位的进行。     

谈中小学体育教师的继续教育

通过文献资料法、专家咨询法、逻辑分析法等,针对新一轮课程改革对中小学体育教育人才素质要求不断变化 的现状,首先分析了体育与健康课程的内涵,进而阐明了体育与健康课程的实施给教师培训部门带来的挑战;最后着重 从新课程体系的培养目标、培养模式、课程设置、质量保障体系等方面展开研讨,提出对策思路。