实验教学电路板的设计制作及其应用

介绍了利用计算机、激光打印机和制板机设计制作实验教学电路板的方法.即在单面覆铜板的铜面设计制作印制电路板熏在绝缘玻纤环氧树脂基面设计制作电路原理图.这是适于单件、小批量、新产品试制的双面制板工艺,它具有廉价快捷、操作简单、精度较高的特点.此外,还介绍了该电路板在实验教学中的应用情况.     

中国企业出口行为与生产率关系的历史回溯:2001——2007

中国2001--2007年227家上市公司样本的生产率测算结果,以及中国企业出口的自我选择效应和出口学习效应测算结果显示,企业生产率在即将出口和不出口企业之间没有显著性差异,即将出口的企业生产率没有明显高于不出口企业,从而说明中国企业的自我选择效应并不存在,而且出口因素对企业出口溢值的影响显著。同时,出口企业与非出口企业的生产率增长差异较显著,由此验证了企业出口学习效应的存在。且所有制因素对出口企业与非出口企业生产率增长均无较大的影响,由此说明我国企业支持出口学习效应而不支持自我选择效应。因此,对以往中国企业通过出口行为获得学习效应的总结能为更好地推进我国企业国际化提供强有力的理论支持。     

“Me,the street,and a backpack”: employment,income, and physical capital in rural recovery

ABSTRACT

Recovery capital is a framework for understanding individuals’ resources for recovery from substance misuse. In a qualitative analysis of rural individuals in recovery (N = 49), the role of physical capital emerged prominently across ten focus groups. Participants highlighted the effects of employment status, income, and other forms of physical capital directly, as well as indirect effects through changes in human capital. Negative cultural capital components, in the form of stigma and employment discrimination, were described as barriers to physical capital acquisition and successful recovery. Based on these findings, we discuss rural recovery challenges and propose a model of recovery capital interactions.     

Capturing Relatedness: Comprehensive Measures based on Secondary Data

This paper presents new measures of technological and customer‐side relatedness constructed from widely available secondary data. Relatedness is a concept central to predicting the existence and nature of a relationship between corporate diversification and firm performance. Yet, finding appropriate measures has been an ongoing struggle. The widely used SIC‐based entropy measure has low construct validity, and survey‐based measures are hard to replicate across firms and industries and over time. The measures we develop significantly outperform established measures in explaining variation in firm performance across firms and over time, and both sources of relatedness are found to be independent and significant explanations of firm performance.     

The differential gender effect of internalized racism on abdominal obesity in KwaZulu-Natal,South Africa

This research examined the effect of a psychosocial variable, internalized racism, on abdominal obesity, as measured by waist circumference. Results show that the effect of internalized racism on waist circumference persists net of other controls among women, but not among men. Also, among women who had high levels of internalized racism and high educational levels, a positive relationship to abdominal obesity is evident despite the tendency of education to be protective of abdominal obesity. This study supports other research findings that internalized racism is related to waist circumference among adult women but not among men in Western Hemisphere blacks. It also supports past research findings of a gendered reaction to psychosocial stress. It also illustrates that this relationship occurs on the continent of Africa, an area where research on this phenomenon is scarce.     

An analysis of citizen participation in anti-poverty programmes

This article explores citizen participation, describing levels,forms and benefits of participation by local community members.In particular, it analyses citizen involvement in anti-povertyprogrammes, drawing on primary research in Jamaica, where asocial fund forms a major plank of the national government'spolicy and programme to reduce poverty. Using naturalistic inquirymethods, the research sought evidence of citizen participationin social fund subprojects aimed at improving community infrastructureand social services and strengthening community organizations.This article discusses four types of participation revealedby the research and the implications for community-level approachesto economic improvement and social change.     

Expression and ambivalence over expression of negative emotion:psychometric analysis in the Women's Health Initiative

Inhibition of emotional expression has been associated with the incidence and progression of breast cancer and other chronic illnesses. Others have theorized that it may not be repression itself, but rather ambivalence over the expression of emotions that is the important health-related factor. The Women's Health Initiative (WHI), a long-term, national study focusing on disease prevention among postmenopausal women, is unique in its assessment of expression and ambivalence of negative emotion in a large study sample of multiethnic, older women. Psychological factors such as expression of negative emotion and ambivalence about expression of emotion are also determined by social patterning. The current study examined the psychometric properties of the instruments used to measure each construct and variation across race/ethnicity and age. The analysis suggests that the scales can be used with confidence in diverse ethnic and age groups. Examining ambivalence about expression of negative emotion in future longitudinal research will further elucidate its role in predicting disease incidence and recovery, both important in reducing the public health burden of chronic disease.     

取消歧视性监管限制,充分释放民营银行服务潜能

民营银行试点5年多来,总体运营稳健,坚持特色化发展,在服务小微企业和实体经济方面取得了一定成效.与此同时,随着利率市场化改革深入推进、存款保险制度推出,金融科技发展迅猛,对外开放明显提速,民营银行的发展环境正在发生重要变化,试点之初"量身定制"的部分监管措施"瓶颈"效应日益凸显.建议按照"权利平等、机会平等、规则平等"的原则,调整民营银行监管思路,逐步比照同等规模的中小银行统一监管标准,尽快取消在股东监管、机构业务准入等方面的显性或隐性壁垒,激发民间资本进入银行业的活力,释放民营银行发展潜力.