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   1271篇
  免费   64篇
各国政治   92篇
工人农民   45篇
世界政治   101篇
外交国际关系   111篇
法律   539篇
中国政治   9篇
政治理论   426篇
综合类   12篇
  2023年   4篇
  2022年   7篇
  2021年   20篇
  2020年   35篇
  2019年   46篇
  2018年   40篇
  2017年   65篇
  2016年   50篇
  2015年   51篇
  2014年   41篇
  2013年   215篇
  2012年   33篇
  2011年   52篇
  2010年   31篇
  2009年   41篇
  2008年   38篇
  2007年   52篇
  2006年   45篇
  2005年   30篇
  2004年   32篇
  2003年   37篇
  2002年   44篇
  2001年   24篇
  2000年   31篇
  1999年   26篇
  1998年   24篇
  1997年   20篇
  1996年   15篇
  1995年   9篇
  1994年   19篇
  1993年   11篇
  1992年   14篇
  1991年   12篇
  1990年   13篇
  1989年   13篇
  1988年   5篇
  1987年   12篇
  1986年   9篇
  1985年   7篇
  1984年   6篇
  1983年   7篇
  1982年   3篇
  1981年   5篇
  1980年   5篇
  1979年   11篇
  1978年   6篇
  1977年   3篇
  1976年   4篇
  1974年   4篇
  1969年   2篇
排序方式: 共有1335条查询结果,搜索用时 15 毫秒
991.
Objective. Three competing explanations for the distributionof Japan's ODA in Asia are empirically examined in this paper.The first explanation hypothesizes that Japan reacts to US pressureand interests as it formulates its foreign aid policy. The competingexplanations argue that Japanese ODA is used to promote Japan'snational economic interests or humanitarian goals. Methods.We examine the determinants of Japanese ODA in 14 Asian countriesfor the period of 1979–1998. The effects of the independentvariables are estimated using ordinary least squares (OLS) withpanel-corrected standard errors. Results. US strategic interestswere found to have no effect on aid disbursements for the periodin question. Rather, we find that Japan's national economicinterests have shaped Japanese aid decisions in Asia. The disbursementpattern of Japanese ODA is also influenced by poverty in therecipient country. Employing measures from the Political TerrorScale, Freedom House, and Polity IV, we find no effect for democracyor human rights.  相似文献   
992.
993.
994.
The Y-chromosomal binary marker P25 is a paralogous sequence variant, rather than a SNP: three copies of the P25 sequence lie within the giant palindromic repeats on Yq, and one copy has undergone a C to A transversion to define haplogroup R1b (designated C/C/A). Since gene conversion is known to be active in the palindromic repeats, we reasoned that P25 might be liable to back-mutation by gene conversion, yielding the ancestral state C/C/C. Through analysis of a set of binary markers in Y-chromosomes in two large samples from Great Britain and the Iberian Peninsula we show that such conversion events have occurred at least twice, and provide preliminary evidence that the reverse conversion event (yielding C/A/A) has also occurred. Because of its inherent instability, we suggest that P25 be used with caution in forensic studies, and perhaps replaced with the more reliable binary marker M269.  相似文献   
995.
Kalb C  Underwood A  Mummolo J 《Newsweek》2006,148(24):52-4, 56-7, 60-1
  相似文献   
996.
This article analyses Japanese policy towards the Middle Eastin the post-Cold War era. The article argues that Japanese policyhas begun to move beyond the reactive diplomacy of the ColdWar years. The focus of this new approach has been Japan's growingcontribution to ‘soft’ security in the region. However,Japan retains a tendency to focus on its narrow interests withoutfully taking into account the broader strategic consequencesof its policies. Yet, in order to protect its overall interestsin the region, Japan needs to recognize the diminishing utilityof this ‘free rider’ approach and adopt a more activerole regarding ‘hard’ security issues. Even allowingfor the domestic constraints on Japanese policy, there is muchJapan can do in this regard, especially in coordination withthe US.  相似文献   
997.
MDMA ("ecstasy") has gained renewed popularity as a drug of abuse. To access the epidemiology and causes of death of MDMA-positive fatalities, all deaths investigated by the OCME that tested positive for MDMA (22 deaths) between January 1997 and June 2000 were reviewed. There were three deaths in each 1997 and 1998, eleven in 1999, and five in the first part of 2000. Of these 22 deaths, 13 were due to acute drug intoxications, 7 due to mechanical injury (blunt trauma, gunshot wounds), and 2 due to a combination of natural disease and acute drug intoxication. Evidence of recent opiate and/or cocaine use was found in 7 of the acute intoxication deaths and in none of the traumatic or combination natural/intoxication deaths. The race of all decedents was White between the ages of 17-41 years, and 18 of 22 were men.  相似文献   
998.
The dramatic increase in the sensitivity of DNA profiling systems that has occurred over recent years has led to the need to address a wider range of interpretational problems in forensic science. The issues surrounding questions of the kind "whose DNA is this?" have been the subject of considerable controversy but now it is clear that the emphasis is shifting to questions of the kind "how did this DNA get here?" Such issues are discussed in this paper and new insights are provided by two particular recent developments. First, the notion of the "hierarchy of propositions" that has arisen from a project called Case Assessment and Interpretation (CAI) that has been running in the British Forensic Science Service (FSS). Second, a technique for drawing inferences in the face of many interacting considerations, known as "Bayesian networks"--or "Bayes' nets" for short--that has been the subject of an earlier paper in this journal (1). The discussion is carried out by means of case studies, based on actual cases. It is clear that, whereas the inference in relation to the source of the DNA in a crime sample might be overwhelmingly strong, the inference in relation to the propositions that a jury must consider relating to the identity of the actual offender may be much more tentative.  相似文献   
999.
Biosafety considerations for autopsy   总被引:4,自引:0,他引:4  
An autopsy may subject prosectors and others to a wide variety of infectious agents, including bloodborne and aerosolized pathogens such as human immunodeficiency virus, hepatitis B and C viruses, and Mycobacterium tuberculosis. Other hazards include toxic chemicals (e.g., formalin, cyanide, and organophosphates) and radiation from radionuclides used for patient therapy and diagnosis. These risks can be substantially mitigated through proper assessment, personal protective equipment, appropriate autopsy procedures, and facility design.  相似文献   
1000.
In this paper I investigate the interaction of knowledge and institutions in the context of First Nations in the Pacific Northwest of Canada who have evolved management systems for fish and forest resources over hundreds of years. These management systems are viewed as institutions that are based on and apply knowledge systems over time. In the Nisga'a and Haida nations, knowledge systems guide management regimes that govern access, rights and responsibilities, harvesting, allocation of benefits and costs, technology, education and training. For the past hundred years these institutions and knowledge systems have come into conflict with knowledge and management systems imposed first by missionaries, settlers and colonizers and later from Provincial and National governments and corporations holding tenure rights assigned by those governments. National and international regimes such as the Law of the Seas and the Exclusive Economic Zones conflict with traditional institutions and knowledge systems by privileging one level of governance and consequently one form of knowledge and devaluing others. The paper is based on research conducted in the Pacific Northwest over the past eight years, primarily through interviews with elders, decision-makers, and resource users, as well as observation of cultural and resource practices. The research investigated the impacts of conflicting knowledge systems and the attempts to resolve those conflicts. The paper raises questions about knowledge systems and institutions, about institutional interplay, and the impact of international institutions on local institutions as they come into contact and conflict.  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