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   10374篇
  免费   291篇
各国政治   489篇
工人农民   567篇
世界政治   542篇
外交国际关系   304篇
法律   6714篇
中国共产党   3篇
中国政治   71篇
政治理论   1895篇
综合类   80篇
  2020年   112篇
  2019年   151篇
  2018年   293篇
  2017年   242篇
  2016年   310篇
  2015年   180篇
  2014年   172篇
  2013年   1009篇
  2012年   358篇
  2011年   315篇
  2010年   207篇
  2009年   239篇
  2008年   276篇
  2007年   243篇
  2006年   276篇
  2005年   588篇
  2004年   332篇
  2003年   233篇
  2002年   229篇
  2001年   291篇
  2000年   275篇
  1999年   204篇
  1998年   122篇
  1997年   124篇
  1996年   119篇
  1995年   103篇
  1994年   97篇
  1993年   112篇
  1992年   205篇
  1991年   223篇
  1990年   208篇
  1989年   221篇
  1988年   190篇
  1987年   203篇
  1986年   202篇
  1985年   184篇
  1984年   168篇
  1983年   181篇
  1982年   98篇
  1981年   93篇
  1980年   80篇
  1979年   118篇
  1978年   86篇
  1977年   77篇
  1976年   62篇
  1975年   70篇
  1974年   81篇
  1973年   85篇
  1972年   75篇
  1970年   59篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
81.
Quadratic pieces of fleece measuring 16 mm2 were soaked with 10 different blood-samples in the dilution steps of 1:1, 1:10, 1:100, 1:1000, respectively, and were tested in blood group typing and identification tests of forensic serology. The above spezified dilutions correspond with 5 microliters, 0.5 microliter, 0.05 microliter and 0.005 microliter of blood, respectively. The detection limit of the microspectrometric test for blood was the dilution 1:10, of the porphyrine test a dilution above 1:100, whereas the preliminary test for blood (peroxidase) succeeded always up to a dilution of 1:1000 and the species determination by the radial immunodiffusion test in agar gels succeeded in most cases op to a dilution of 1:1000. The detection limit of the anti-human globulin inhibition test was between the dilution steps 1:10 and 1:100 when non-titrated and undiluted anti-human globulin serum was used. Gc- and ABO-grouping were possible up to a dilution of 1:100 and were thus the most sensitive grouping systems. Phenotyping of the enzyme-systems and the Gm/Km-system usually required stains with considerably higher blood concentrations i.e. stains of undiluted blood.  相似文献   
82.
The purpose of this study is to review 23 causes of death that have occurred in Western-Austrian prisons from 1974 to 1989. The majority of them (11 cases) were due to suicides. Among 9 cases of natural death there was a 25 years old man, who died of an unknown purulent meningoencephalitis. Two drunken prisoners had not been supervised and therefore died of alcohol poisoning. In one case the police jail physician did not recognize an epidural hematoma.  相似文献   
83.
84.
This paper gives the author's impressions on the following aspects of justice: desert, equity, equality, need, and intergenerational equity. The author concludes that these different aspects cannot be reconciled but instead must be compromised. An example of such a compromise is provided by a discussion of welfare reform. The author claims that rights are correlative with duties, and that asserting the former has little meaning without specifying the latter. He then discusses justice toward groups rather than individuals. He proposes that maintaining cultural variety in the presence of a homogeneous superculture is a major problem of the contemporary world. The paper concludes with a discussion of various forms of power, particularly the integrative power that people acquire over each other by virtue of ties of loyalty and identity.  相似文献   
85.
Dr. Wilton Marion Krogman was one of the major founders of physical and forensic anthropology in the United States. His extraordinary career spanned nearly six decades, and he was universally admired and respected for his scholarship, teaching, research, wit, and humanity. While studies based on human skeletal remains have long been used to assist the medicolegal system, the late Dr. Krogman can be credited with uniting these areas into the discipline of forensic anthropology. His "Guide to the Identification of Human Skeletal Material" (1939) in the F.B.I. Law Enforcement Bulletin became the foundation of this discipline; his monumental book The Human Skeleton in Forensic Medicine (updated with the author in 1986) solidified its establishment. The purpose of this paper is to pay tribute to this great man and outline his influence on the development and advancement of forensic anthropology.  相似文献   
86.
87.
Schmitt  David E. 《Publius》1988,18(2):33-45
Northern Ireland is a bicommunal society in which Protestantsare numerically dominant; Roman Catholics constitute virtuallyall of the remaining population. On the island as a whole, Protestantsare heavily outnumbered; the Republic of Ireland (the "South")has a population that is about 96 percent Catholic. Social segregationof the two northern communities is relatively distinct, andthere is little crosscutting between groups that might lessenbicommunal conflict. A reciprocal relationship exists betweenthe social system and political structures. Northern Irish politicalinstitutions followed the Westminster model, which facilitatedthe political exclusion of Catholics and impeded social as wellas political integration. The bicommunal social structure hasimpeded the development of more accommodating political structures.Geographic issues and external linkages compound the politicalproblem. Northern Irish politics can be viewed as a "dual dyad"in which the United Kingdom and the Republic of Ireland arecritical components. Psychological dimensions of Northern Irishbicommunalism further exacerbate the conflict.  相似文献   
88.
While the holdings in Davidowitz and Arkansas Blue Cross & Blue Shield arose in different contexts, they both reflect the courts' increasing willingness to consider the importance of cost containment in the health insurance arena, even though patient accessibility to health care may be restricted as a result. If the holding in Davidowitz is not successfully appealed, providers may need legislative relief in order to retain their ability to take valid assignments of patient claims for payment from ERISA plans. It is uncertain whether such legislation can be sought at the state level or must instead come from Congress due to ERISA preemption of state legislation. Clearly, the district court decision on remand in Arkansas Blue Cross & Blue Shield will be closely watched for any light it may shed on this question. On a pragmatic note, providers who have not entered into "participation" agreements with insurers or other private payors may now have a greater incentive to do so, and "nonparticipating" providers who continue to obtain assignments from patients in order to collect directly from insurers or other private payors should determine on a case-by-case basis whether the source of the patient's benefits is a group health plan--which is likely to fall under ERISA and may contain nonassignment provisions--or some other form of coverage. For an additional perspective on insurers' responses to copayment waivers, see Newsletter, Vol. 6, No. 10, October 1991, at 7.  相似文献   
89.
90.
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