首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   417篇
  免费   9篇
各国政治   24篇
工人农民   78篇
世界政治   28篇
外交国际关系   10篇
法律   184篇
中国政治   4篇
政治理论   96篇
综合类   2篇
  2023年   3篇
  2022年   2篇
  2021年   1篇
  2020年   7篇
  2019年   3篇
  2018年   10篇
  2017年   10篇
  2016年   13篇
  2015年   4篇
  2014年   13篇
  2013年   49篇
  2012年   7篇
  2011年   9篇
  2010年   10篇
  2009年   8篇
  2008年   12篇
  2007年   17篇
  2006年   18篇
  2005年   17篇
  2004年   19篇
  2003年   10篇
  2002年   8篇
  2001年   7篇
  2000年   15篇
  1999年   9篇
  1998年   7篇
  1997年   10篇
  1996年   12篇
  1995年   8篇
  1994年   12篇
  1993年   9篇
  1992年   9篇
  1991年   4篇
  1990年   9篇
  1989年   7篇
  1988年   8篇
  1987年   5篇
  1986年   6篇
  1985年   4篇
  1984年   4篇
  1983年   4篇
  1982年   9篇
  1981年   5篇
  1980年   5篇
  1979年   1篇
  1978年   2篇
  1977年   1篇
  1976年   1篇
  1974年   1篇
  1973年   2篇
排序方式: 共有426条查询结果,搜索用时 31 毫秒
91.
We report on the prevalence of self-reported depressive symptoms and associated factors among women employed in a poultry processing plant and a community comparison group of other employed women in northeastern North Carolina in the southern United States. The rural area is poor and sparsely populated with an African American majority. The largest employer of women in the area is a poultry processing plant. The goals of the analyses were 1) to evaluate whether women employed in poultry processing had a higher prevalence of depressive symptoms than other working women from the same geographic area, and 2) to evaluate factors which might be associated with depression among all of these working women, including specific characteristics of their work environment. Recruitment of participants (n=590) and data collection were by community-based staff who were also African American women. Depressive symptoms were measured using the Center for Epidemiologic Studies Depression Scale (CES-D). Work organization factors were measured with the Job Content Questionnaire (JCQ). Log-binomial regression was used to calculate crude and adjusted prevalence ratios. The prevalence of depressive symptoms, based on a CES-D measure of sixteen or more, was 47.8% among the poultry workers and 19.7% among the other working women (prevalence ratio=2.3). After adjusting for socioeconomic variables, health-related quality of life and coping style, the prevalence of depressive symptoms remained 80% higher among the poultry workers. The prevalence of symptoms was also higher among those who perceived low social support at work, hazardous work conditions, job insecurity, and high levels of isometric load. These factors were all more common among the women employed in the poultry plant. The concentration of this low-wage industry in economically depressed rural areas illuminates how class exploitation and racial discrimination may influence disparities in health among working women.  相似文献   
92.
93.
Abstract:  We retrospectively reviewed autopsy records at a statewide medical examiner's office in order to identify and characterize deaths due to child abuse. In a 6-year period in New Mexico, the medical examiner investigated 45 deaths determined to be child abuse-related. Decedents were predominantly male (68.9%), Hispanic White (53.3%), and all were 5 years of age or younger, with a median age of 1 year. Head injuries were the most common cause of death (44.4%), followed by battered baby syndrome (15.6%). Relatives were involved as alleged perpetrators in 80% of the cases, with the father most often implicated (36.1% of cases), and 88.9% of child abuse injuries resulting in death occurred in the family's residence. Toxicology was positive in 26.7% of cases, but only two cases had substances of abuse present. Information on risk factors such as prematurity, parental age, and history of abuse was also collected.  相似文献   
94.
Carol Mersch 《Astropolitics》2013,11(1-2):65-78
This article concerns the efforts of Reverend John M. Stout and the Apollo Prayer League to land microfilm copies of the Christian Bible on the lunar surface during the Apollo era. The efforts of Stout, a NASA information scientist and industrial chaplain who orchestrated the years-long undertaking, underscored manned spaceflight not only as a technological and geopolitical achievement, but as a collective spiritual quest. The venture was countered at the time by the renowned head of the American Atheists, Madalyn Murray O'Hair, who insisted that religious artifacts and observances had no place on state-sponsored, taxpayer–funded missions. Stout believed that the astronauts themselves had rights guaranteed by the First Amendment. The rancorous debate between Stout and O'Hair, which was played out in the media, laid bare the innate conflict between personal religious freedom and the specter of state-sponsored religion in a secular society making its first expeditions into deep space.  相似文献   
95.
’Evidence‐based practice’ is a term used in Britain's National Health Service to describe the use of research evidence in policy, management and practice decisions. This article develops this idea and explores its use in local government decision making, using case studies of social care and education. It argues that the absence of a funding stream to support local authorities’ own research reinforces a view of local authorities as essentially administrative arms of the state, supervised through service‐by‐service performance measurement, rather than ‘intelligent’ agents using local research to develop evidence‐based policies.  相似文献   
96.
Rossell, C. H., & Hawley, W. D. (Eds.). (1983). The Consequences of School Desegregation. Philadelphia: Temple University Press.

Stephen, W. G., & Feagin, J. R. (Eds.). (1980). School Desegregation: Past, Present, and Future. N.Y.: Plenum Press.  相似文献   
97.
The survival of the tiger (Panthera tigris) is seriously threatened by poaching to provide raw materials for Traditional Chinese Medicines (TCMs). Most highly prized are the tiger's bones, which are used in combination with other animal and plant derivatives in pills and plasters for the treatment of rheumatism and other ailments. Hundreds of patent remedies have been produced which claim to contain tiger bone, but proof of its presence is needed, if legislation prohibiting the trade in endangered species is to be enforced. A highly sensitive tiger-specific real-time PCR assay has been developed to address this problem. Using primers specific to the tiger mitochondrial cytochrome b gene, successful amplification has been reliably achieved from blood, hair and bone as well as from a range of TCMs spiked with 0.5% tiger bone. Although capable of detecting fewer than 10 substrate molecules, the seven varieties of TCM pills and plasters tested showed no detectable trace of tiger DNA before spiking. Furthermore, sequencing several "tiger bone" fragments seized from TCM shops has shown that they actually originated from cattle and pigs. The potential effects of traditional bone preparation methods, evidence that much lower concentrations are used than alleged on TCM packaging, and substitution of bones from other species all suggest a low likelihood of detecting tiger DNA in patent medicines. Despite this, the basic methods have been thoroughly proven and can be readily applied to derivatives from other CITES protected species providing a rapid and highly sensitive forensic test for species of origin. Potential applications to the monitoring of wild populations are demonstrated by the successful identification of shed hairs and faecal samples.  相似文献   
98.
The purpose of this study is to determine the contribution of male unemployment and each partner’s problem drinking to risk for male-to-female partner violence (MFPV) and female-to-male partner violence (FMPV) among a sample of construction industry workers and their spouses/partners. Participants in the sample (n = 848 couples) completed cross-sectional health behavior surveys. Multivariate logistic regression models of MFPV and FMPV, with adjustment for demographic and psychosocial variables, were developed. Approximately 20% of couples reported MFPV, and 24% reported FMPV. Results indicated that couples in which the male was a problem drinker, and in which the male worker reported being currently unemployed, were at risk for MFPV. Number of months unemployed by the male worker was significantly associated with FMPV, but problem drinking was not associated with this outcome. Male and female impulsivity were significantly associated with risk for MFPV and FMPV, and the male’s report of adverse childhood events was associated with increased likelihood of MFPV. There was no evidence for the effects of unemployment being moderated (exacerbated) by problem drinking. Workplace-based prevention efforts may be a feasible and important strategy to reduce problem drinking and partner violence among high-risk occupational groups.  相似文献   
99.
The present study examines how exposure to relational aggression at school is associated with adolescents’ perceptions of, and participation in, a hostile school environment. Participants were 1,335 African American and European American adolescents in grades 7 through 12 (52% female, 49% African American). Results indicate that exposure to relational aggression is associated with several components of adolescents’ perceptions of the school climate. Adolescents exposed to high levels of relational aggression perceived their school to be less safe, and were less pleased with the general social atmosphere at school. Moreover, for males, but not females, exposure to relational aggression was associated with carrying a weapon to school. Implications and suggestions for future research are discussed in terms of working toward safer school environments for adolescents.
Sara E. GoldsteinEmail:

Sara Goldstein   is an Assistant Professor in the Department of Family and Child Studies at Montclair State University. She received her Ph.D. in Psychology from Bowling Green State University. Her major research interests include peer relationships, aggression, and gender. Amy Young   is an Assistant Research Scientist at the Institute for Research on Women and Gender at the University of Michigan. She received her Ph.D. in Psychology from the University of Michigan. Major research interests include gender, sexual assault, substance use, and developmental psychopathology. Carol Boyd   is a Professor of Nursing and a Professor of Women’s Studies and is Director of the Institute for Research on women and Gender at the University of Michigan, Ann Arbor. She received her PhD, in Nursing (cognate Anthropology). Her major research interests include gender and substance abuse.  相似文献   
100.
Local election officials are the administrators of democracy, but we know little about their views. This paper draws from two national surveys of local election officials. The authors find that local election officials generally support the goals of the federal Help America Vote Act but are less enthusiastic about the actual impact of the legislation. Implementation theory helps explain their evaluation of federal reforms. Goal congruence with reform mandates, resource availability, and a willingness to accept federal involvement predicts support for these reforms. Federal policy changes have promoted electronic systems, and some of the authors' findings are relevant to research on e-government. Users of electronic voting machines tend to have high confidence in them despite the significant criticism the machines have faced. Local election officials who support e-government generally are more likely to more positively evaluate federal reforms.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号