全文获取类型
收费全文 | 9257篇 |
免费 | 267篇 |
专业分类
各国政治 | 445篇 |
工人农民 | 319篇 |
世界政治 | 854篇 |
外交国际关系 | 443篇 |
法律 | 5020篇 |
中国共产党 | 2篇 |
中国政治 | 87篇 |
政治理论 | 2296篇 |
综合类 | 58篇 |
出版年
2021年 | 67篇 |
2020年 | 112篇 |
2019年 | 172篇 |
2018年 | 236篇 |
2017年 | 224篇 |
2016年 | 224篇 |
2015年 | 140篇 |
2014年 | 209篇 |
2013年 | 1160篇 |
2012年 | 213篇 |
2011年 | 251篇 |
2010年 | 216篇 |
2009年 | 245篇 |
2008年 | 267篇 |
2007年 | 248篇 |
2006年 | 244篇 |
2005年 | 239篇 |
2004年 | 264篇 |
2003年 | 230篇 |
2002年 | 230篇 |
2001年 | 400篇 |
2000年 | 354篇 |
1999年 | 257篇 |
1998年 | 137篇 |
1997年 | 137篇 |
1996年 | 90篇 |
1995年 | 104篇 |
1994年 | 106篇 |
1993年 | 89篇 |
1992年 | 159篇 |
1991年 | 191篇 |
1990年 | 165篇 |
1989年 | 176篇 |
1988年 | 141篇 |
1987年 | 160篇 |
1986年 | 137篇 |
1985年 | 135篇 |
1984年 | 127篇 |
1983年 | 128篇 |
1982年 | 98篇 |
1981年 | 121篇 |
1980年 | 69篇 |
1979年 | 113篇 |
1978年 | 78篇 |
1976年 | 57篇 |
1975年 | 54篇 |
1974年 | 67篇 |
1973年 | 73篇 |
1972年 | 51篇 |
1971年 | 46篇 |
排序方式: 共有9524条查询结果,搜索用时 0 毫秒
21.
K A Hewadikaram M L Goff 《The American journal of forensic medicine and pathology》1991,12(3):235-240
Decomposition studies were conducted using two carcasses of domestic pigs, Sus scrofa L., 8.4 kg and 15.1 kg in weight, to determine the effects of carcass size on the rate of decomposition, composition of the arthropod fauna, and succession patterns. A total of 46 arthropod taxa were recovered during this study. No size-related differences were observed between carcasses with respect to composition of the arthropod fauna or patterns of succession. A greater number of arthropods were observed attracted to the 15.1-kg carcass, and the rate of decomposition observed was more rapid for the 15.1-kg carcass than for the 8.4-kg carcass. Internal temperatures of the 8.4-kg carcass were more directly related to external ambient temperatures during the fresh and bloated stages of decomposition. During the decay stage, both carcasses generated internal temperatures significantly above ambient temperatures. Following this stage, internal temperatures fell to approximate ambient temperatures during the postdecay and remains stages. 相似文献
22.
23.
24.
James K. Galbraith 《Journal of policy analysis and management》1991,10(1):134-135
25.
James D. Schmidt 《Law & social inquiry》2007,32(4):1027-1057
This article considers two recent books in the history of childhood, youth, and the law: Holly Brewer, By Birth or Consent and Stephen Robertson, Crimes Against Children . It argues that these works mark the emergence of age as a category of analysis in sociolegal studies. It calls for further investigations in the legal history of childhood and youth, outlines several areas of interest, and suggests that attention to age will alter how scholars look at the law by complicating key concepts such as innocence, authority, and citizenship. Studies of age and the law could benefit from cross-cultural and transnational approaches. 相似文献
26.
Panagiotis K. Staikouras Christos K. Staikouras Maria-Eleni K. Agoraki 《European Journal of Law and Economics》2007,23(1):1-27
Banks are “special” financial institutions generating distinct corporate governance challenges. The present paper examines
the relationship between two of the most pertinent corporate governance factors—that is, the size of the Board of Directors
and the proportion of non-executive directors—and firm performance on a sample of 58 large European banks over the period
2002–2004. The empirical analysis embraces a number of bank-specific variables. Our results reveal that bank profitability
is negatively related to the size of the Board of Directors, while the impact of Board composition, although positive in all
models, is, in most cases, insignificant. The results are robust after controlling for firm-specific variables.
相似文献
27.
Bernhard König 《Juristische Bl?tter》2007,129(12):804-810
Klagen gegen einen internationalen Sportverband, die auf Feststellung der Unwirksamkeit einer Sperre eines bei einem nationalen
Sportverband besch?ftigten Trainers von Wettbewerben dieses Sportverbandes und auf Unterlassung von Handlungen, die eine Akkreditierung
verhindern bzw erschweren, gerichtet sind, unterliegen der ausschlie?lichen inl?ndischen Gerichtsbarkeit des Sitzstaates;
eine Verbindung solcher Klagen mit einer gegen den nationalen Verband gerichteten gleichartigen Klage ist daher unzul?ssig.
– Eine damit zusammenh?ngende Schadenersatzklage gegen den internationalen Verband steht auch nicht in dem von Art 6 Nr 1
LGVü geforderten Zusammenhang mit einer Klage gegen den nationalen Verband wegen Aufl?sung des Trainervertrages aufgrund der
Sperre. 相似文献
28.
COMPSTAT, the latest innovation in American policing, has been widely heralded as a management and technological system whose elements work together to transform police organizations radically. Skeptical observers suggest that COMPSTAT merely reinforces existing structures and practices. However, in trying to assess how much COMPSTAT has altered police organizations, research has failed to provide a broader theoretical basis for explaining how COMPSTAT operates and for understanding the implications of this reform. This article compares two different perspectives on organizations—technical/rational and institutional—to COMPSTAT's adoption and operation in three municipal police departments. Based on fieldwork, our analysis suggests that relative to technical considerations for changing each organization to improve its effectiveness, all three sites adopted COMPSTAT in response to strong institutional pressures to appear progressive and successful. Furthermore, institutional theory better explained the nature of the changes we observed under COMPSTAT than the technical/rational model. The greatest collective emphasis was on those COMPSTAT elements that were most likely to confer legitimacy, and on implementing them in ways that would minimize disruption to existing organizational routines. COMPSTAT was less successful when trying to provide a basis for rigorously assessing organizational performance, and when trying to change those structures and routines widely accepted as being "appropriate." We posit that it will take profound changes in the technical and institutional environments of American police agencies for police departments to restructure in the ways anticipated by a technically efficient COMPSTAT. 相似文献
29.
Serious conflicts can arise when contacts between a child and a parent require supervision unless specific guidelines and objectives are clarified for all involved parties. This article discusses supervision objectives, the importance of maintaining the parent-child relationship, instances warranting recommendation for no parental contact, qualifications of the supervisor, and practical guidelines for supervision. 相似文献
30.
K. Minakata O. Suzuki Y. Ishikawa H. Seno M. Asano 《Forensic Science International Supplement Series》1991,50(2)
A simple and sensitive method is described for quantitative analysis of chlorpromazine in blood, serum, urine and tissue homogenate. The chlorpromazine cation radical produced by adding perchloric acid and 2,3-dichloro-5,6-dicyano-p-benzoquinone to the sample can be detected by the ESR method at room temperature. The sensitivity limit is 10 ng, that is, 20 μl of the solution containing 0.5 μg chlorpromazine/ml. The time needed for the measurement is within 10 min. The chlorpromazine radical thus produced is very stable; for example, 95% of the radical was observed after 24 h. The advantage of this method is discussed by comparing with the ordinary spectrophotometry which requires the purification of the sample. 相似文献