真空蒸发碲化物薄膜光电性能的研究

采用高温烧结和真空蒸发制备了ＣｄＴｅ光敏薄膜，探讨了制备工艺对ＣｄＴｅ薄膜性能和结构的影响，说明了在基片温度为１３０℃左右下制备的ＣｄＴｅ薄膜具有明显的光敏特性，并得到ＣｄＴｅ材料的禁带宽度为１．６３ｅＶ。利用Ｘ衍射对不同基片温度下制备的ＣｄＴｅ薄膜材料进行了结构分析，发现基片温度为１３０℃左右时制备的ＣｄＴｅ薄膜具有明显的衍射峰。     

Relationships among shiftworker eating habits, eating satisfaction, and self-reported health in a population of US miners

As part of a larger study on the health and safety of shiftworkers in the mining population by the US Bureau of Mines, the association between meal frequency, meal regularity, eating satisfaction and a self-reported health index was examined. Although the link between shiftwork and some health complaints, such as gastrointestinal disorders, has been established, the research needed to understand why this occurs has not been fully undertaken. Specifically, academic nutritional research has substantially ignored the question of how working irregular hours affects the eating behavior of industrial workers such as miners. In this study the eating habits of 101 surface mine workers were studied. It was found that working the day, afternoon/evening, and night-shifts was related to the number of meals eaten on those shifts and to the consistency of timing of those meals. The lowest eating satisfaction levels were reported by those who ate at different times on all shifts and who changed the number of meals eaten per day on each shift. Lowest self-reported health ratings were reported by those who changed the number of meals taken on each shift, rather than by those who ate one, two or three meals per day. These results are discussed in relation to the possible mechanisms contributing to gastrointestinal disorders and to coping mechanisms that could be adopted by shiftworkers.     

Evaluating employee assistance policy in an HMO-based alcoholism project.

One aspect of successful employee assistance program (EAP) implementation is the adoption of a formal, written policy, reflecting company commitment to EAP guidelines and goals. This study of criteria predictive of such policy adoption was conducted at the occupational alcoholism project of a New England health maintenance organization (HMO). Data on nearly 400 organizations contacted by occupational program consultants (OPCs) over a 20-month period were collected by questionnaire and interview. One third of these organizations adopted employee assistance policies and set about establishing formal programs. Stepwise multiple regression is the principal method used to pinpoint the correlates of policy adoption. Two of the most important of these are the attitudes of contact persons within the organization toward alcoholism and employee assistance programs, particularly their admission of alcohol problems within their social networks; and the consultants' persistence and marketing skills. The adopting organizations also had reputations for being progressive, and actively concerned about employee welfare; they tended to be large, their executives autonomous, and their union membership rates high. Inhibiting policy acceptance were fears that a written policy would jeopardize the reputation and image of the organization, and that an employee assistance program would remove internal control of personal procedures. The adequacy of the evaluative data and methods are discussed, and recommendations are offered in the interests of streamlining the efforts of OPCs and of achieving greater penetration of targeted organizations.     

The efficacy of early intervention programs for children with organic impairment: A quantitative review

The results of studies examining the effectiveness of early intervention for infants and children with organic impairment and developmental delay were reviewed using recently developed quantitative methods that treat the literature review process as a unique type of scientific inquiry. Thirty-eight studies meeting certain predetermined criteria were included in the review. The 38 studies contained a total of 118 statistical hypothesis tests that evaluated the effectiveness of early intervention. An analysis of these tests based on the calculation of effect sizes revealed that subjects receiving early intervention performed better on a wide range of dependent measures than subjects not receiving intervention. The outcomes were found to be related to several design and study characteristics. Larger effect sizes were associated with preexperimental designs, and also with studies in which the internal validity was rated as poor. Several other design variables such as how subjects were assigned to conditions and how the dependent measure was recorded were related to study outcome as measured by effect size. The conclusion was made that an accurate interpretation of the early intervention research literature cannot be made without consideration of specific design variables and study characteristics.     

艾滋病传播方式及对策--以云南为例

作为我国最早发现HIV/AIDS集中感染人群的地区,在不到20年的时间里,云南省HIV/AIDS感染人数显著上升,并一直居全国的首位,对全国的疫情变化起着举足轻重的作用.研究分析云南省HIV/AIDS传播扩散的模式,分析各种传播途径的相互作用机制,对于系统把握云南省艾滋病传播扩散的现状及发展趋势,并提出相应的预防控制对策,具有重要的实际应用价值.     

压力对身心健康的影响及对策

社会经济的不断发展,提高了人们的生活水平,也增大了人们所面临的压力,并进一步影响到人们的生理及心理健康,如何缓解压力,不外乎直接面对、积极消除;秩序渐进、不断克服;调适心理、提高素质等有效策略。     

‘You tell all the stories’: Using narrative to explore hierarchy within a Community of Practice1

Recent discussion of the Community of Practice (CofP) ( Davies 2005 ) has suggested that there are certain limitations to the approach with regard to how it accounts for internal hierarchy and community membership. Eckert and Wenger (2005: 588) have suggested that the only way to evaluate such criticism (and avoid building an inappropriately rigid conception of power into CofP theory) is to explore how hierarchies operate within CofPs. This paper offers such an exploration. Using data from a long‐term ethnographic study of a high school in the north‐west of England, this paper will use narrative analysis (drawing upon the work of Labov and Waletsky [1967] 1997 amongst others) to explore the interactional space in which speakers actively negotiate their personal and community behaviour. The analysis focuses upon the role individuals play as narrators of community practice and illustrates that status inequalities between individual CofP members do not necessarily result in inequitable allocation of control within the CofP.     

大学英语教学改革的最新动态研究

随着中国加入WTO,以及北京申奥的成功,社会对外语人才的要求越来越高。大学英语教学虽已取得了一定的成绩,但这些成绩与我国经济发展和改革开放深入的实际之间依然存在着巨大差距,为了满足新形势的需求,大学英语教学改革势在必行。     

面向对象的客户机/服务器应用软件的开发平台——PowerBuilder

介绍了最新的客户机/服务器应用软件开发平台PowerBuilder,着重突出了其面向对象程序设计的特色及支持多数据库的能力。     

A Group Approach to Fostering Self-Cohesion and Developmental Progression in Female Adolescent Group Home Residents

In this project, the applicability of David Wexler's (1991a,b) multi-model Program for Innovative Self Management (PRISM) to adolescent girls in group home placement was explored. The model is based on self-psychological and developmental theory. Originally developed for use in adolescent inpatient settings, PRISM utilizes cognitive-behavioral and relaxation techniques to equip the acting out adolescents with skills to better manage a wide array of emotions and behaviors. A modified version of PRISM was conducted in a group psychotherapeutic format with eighteen residents of two group homes, ages 14 to 18. The study reflected that the participants embraced the model and applied the skills with encouraging results. Recommendations for future research in this area are presented.