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   444篇
  免费   13篇
各国政治   22篇
工人农民   32篇
世界政治   55篇
外交国际关系   33篇
法律   215篇
中国政治   5篇
政治理论   91篇
综合类   4篇
  2021年   4篇
  2020年   7篇
  2019年   10篇
  2018年   9篇
  2017年   11篇
  2016年   11篇
  2015年   7篇
  2014年   6篇
  2013年   64篇
  2012年   7篇
  2011年   10篇
  2010年   7篇
  2009年   13篇
  2008年   12篇
  2007年   11篇
  2006年   13篇
  2005年   11篇
  2004年   13篇
  2003年   14篇
  2002年   15篇
  2001年   13篇
  2000年   12篇
  1999年   10篇
  1998年   6篇
  1997年   7篇
  1996年   7篇
  1995年   7篇
  1994年   5篇
  1993年   7篇
  1992年   5篇
  1991年   8篇
  1990年   6篇
  1989年   5篇
  1988年   9篇
  1987年   6篇
  1985年   4篇
  1984年   4篇
  1983年   8篇
  1982年   9篇
  1981年   4篇
  1980年   5篇
  1979年   8篇
  1978年   7篇
  1977年   3篇
  1976年   5篇
  1975年   6篇
  1974年   8篇
  1969年   2篇
  1967年   3篇
  1966年   2篇
排序方式: 共有457条查询结果,搜索用时 31 毫秒
31.
32.
Although the topic of recidivism invariably elicits much interest, there appears to be considerable conflict and uncertainty as to even crude estimates of the recidivism rate for persons released from prison. The purpose of this research was to examine the extent to which this apparent confusion may be explained by different methodological choices of criterion measure or length of follow-up. Through the cooperation of the Federal Bureau of Investigation, rap sheet follow-up information for a six-year period was obtained for a relatively large random sample of federal prisoners released in 1970. This data enabled calculation of recidivism rates using various criterion measures and follow-up periods applied to the same sample. The effect of varying these definitions on the recidivism rate obtained can then be directly observed.  相似文献   
33.
34.
The neurologic manifestations of thallium poisoning include a severely painful ascending peripheral neuropathy, autonomic dysfunction, cranial nerve abnormalities, and a toxic encephalopathy. Although thallium has a short half-life, these neurologic manifestations commonly progress, even as the blood concentration of thallium decreases. This suggests either that thallium persists in neuronal tissues or that it initiates an injury cascade that takes time to fully manifest. As the latter mechanism is consistent with many toxin exposures, the concept of a central nervous system reservoir for thallium is often discounted. A recent case provided a unique opportunity to evaluate this possibility. A 48-year-old man was acutely and chronically thallium poisoned by his common-law wife. During his initial exposures, only gastrointestinal symptoms manifested. Following an acute ingestion, hospitalization was required. Over 3 days, his symptoms rapidly progressed from a severely painful neuropathy to slurred speech, ptosis, confusion, coma, respiratory insufficiency, and death. Because of considerations of alternative diagnoses, 2 lumbar punctures were performed, one on admission and another on the day of his death. Serum thallium concentrations obtained from stored blood samples were paired with spinal fluid concentrations from the same days. On day 1, serum and spinal fluid concentrations were 8700 mu/L and 1200 mu/L, respectively. On day 3, although the serum concentration had fallen to 7200 mu/L, the spinal fluid concentration had increased to 2100 mu/L. This case provides evidence to support the hypothesis that thallium distributes into the central nervous system more slowly than the blood compartment, and this may in part account for the progression of neurologic findings in the setting of decreasing serum concentrations.  相似文献   
35.
Health insurers are generally guided by the principle of "actuarial fairness," according to which they distinguish among various risks on the basis of cost-related factors. Thus, insurers often limit or deny coverage for vision care, hearing aids, mental health care, and even AIDS treatment based on actuarial justifications. Furthermore, approximately forty-two million Americans have no health insurance at all, because most of these individuals cannot afford the cost of insurance. This Article argues that Americans have come to demand more than actuarial fairness from health insurers and are increasingly concerned by what I call "moral fairness." This is evidenced by the hundreds of laws that have been passed to constrain insurers' discretion with respect to particular coverage decisions. Legislative mandates are frequent, but seemingly haphazard, following no systematic methodology. This Article suggests an analytical framework that can be utilized to determine which interventions are appropriate and evaluates a variety of means by which moral fairness could be promoted in the arena of health care coverage.  相似文献   
36.
The presence of cocaine in illicit drug samples is still being determined in some laboratories using spot tests and microcrystal tests. Seventeen chemical species were tested using three different spot tests (Wagner, Marquis, and cobalt thiocyanate followed by stannous chloride reactions) and two microcrystal tests (gold chloride and platinic chloride) to determine whether the results could be differentiated from the results of these tests on cocaine. The data obtained indicated that nine of the 17 compounds gave results similar to those from cocaine using the three spot tests, but that the results from microcrystal testing allowed for differentiation of all nine compounds from cocaine.  相似文献   
37.
38.
Morris  Herbert 《Law and Philosophy》1999,18(4):363-378
Law and Philosophy -  相似文献   
39.
40.
Self-esteem and delinquency   总被引:7,自引:0,他引:7  
Cross-lagged panel correlation technique is used to examine whether self-esteem has a greater effect on delinquency than delinquency has on self-esteem. Analysis of a nationwide study of tenth-grade boys shows that self-esteem is the more powerful causal factor, even when initial levels of delinquency are held constant. This result, however, is found to be stronger in the lower class than in the upper class. These data are interpreted as lending greater support to Kaplan's theory of the self-enhancing nature of delinquent behavior than to the idea of reflected appraisals.The research reported in this article was funded by a grant from the National Institute of Mental Health (MH27747), which is gratefully acknowledged. The data and tabulations utilized in this article were made available (in part) by the Institute for Social Research Social Science Archive. The data were originally collected by Dr. Jerald G. Bachman, Survey Research Center, Institute for Social Research, The University of Michigan. Neither the original collector of the data nor the archive bears any responsibility for the analyses or interpretations presented here.This article is a revised version of a paper presented at the annual meeting of the Eastern Sociological Society, Philadelphia, April 2, 1978.Received her Ph.D. from the University of Maryland and is interested particularly in the social influence on the self-concept.Received his Ph.D. from Columbia University and is interested in the structure and development of the self-concept.Received her Ph.D. from Stanford University. Current research interests are related to a longitudinal study of personality development.  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