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   703篇
  免费   27篇
各国政治   41篇
工人农民   61篇
世界政治   148篇
外交国际关系   22篇
法律   310篇
中国政治   4篇
政治理论   142篇
综合类   2篇
  2023年   1篇
  2022年   2篇
  2021年   9篇
  2020年   6篇
  2019年   17篇
  2018年   22篇
  2017年   27篇
  2016年   26篇
  2015年   17篇
  2014年   26篇
  2013年   82篇
  2012年   26篇
  2011年   20篇
  2010年   14篇
  2009年   20篇
  2008年   28篇
  2007年   26篇
  2006年   57篇
  2005年   51篇
  2004年   30篇
  2003年   40篇
  2002年   45篇
  2001年   13篇
  2000年   13篇
  1999年   12篇
  1998年   7篇
  1997年   7篇
  1996年   10篇
  1995年   9篇
  1994年   7篇
  1993年   5篇
  1992年   3篇
  1991年   1篇
  1990年   7篇
  1989年   12篇
  1988年   6篇
  1987年   3篇
  1986年   2篇
  1985年   3篇
  1984年   3篇
  1983年   4篇
  1982年   1篇
  1980年   2篇
  1978年   1篇
  1976年   2篇
  1975年   2篇
  1974年   1篇
  1973年   1篇
  1967年   1篇
排序方式: 共有730条查询结果,搜索用时 15 毫秒
211.
212.
Gorman C 《Time》2006,167(25):66
  相似文献   
213.
In its 2006 National Security Strategy, the USA reaffirms thecontroversial doctrine of pre-emptive self-defence as crucialin the "war on terror" proclaimed after the attacks of 9/11.But it does not provide a detailed examination of pre-emption.The questions left open in the 2002 US National Security Strategyas to what will trigger pre-emptive action, when action againstnon-State actors will be permissible and what degree of forcewill be proportionate in pre-emptive action are still unresolved.The promise that "The reasons for our actions will be clear,the force measured and the cause just" does not offer much inthe way of specific guidance. It is very striking that in thiscontext, the US strategy makes no reference to internationallaw or to the role of the UN Security Council. The other mainfocus of the strategy is on the "promotion of democracy", butit does not go so far as to assert any legal right to use forcefor this purpose, and it makes only passing reference to humanitarianintervention. The EU 2003 Security Strategy provides a markedcontrast in that it does not adopt the doctrine of pre-emptiveself-defence, does not expressly identify "rogue States" anddoes profess respect for international law and for the roleof the UN. Other States have not generally shown themselveswilling to accept a Bush doctrine of pre-emptive self-defence.They agree that there are new threats facing the world frominternational terrorists and the danger of proliferation ofweapons of mass destruction, but the 2005 World Summit showedclearly that there is no general acceptance of pre-emptive action.Moreover, the International Court of Justice still follows acautious approach to self-defence. The 2006 National SecurityStrategy largely reaffirms the doctrines of the earlier 2002Strategy, but whereas the focus in the 2002 Strategy was onthe threat posed by Iraq and North Korea; attention has nowshifted to Iran and Syria, accused of being State sponsors ofterror by Hizbollah and Al-Qaida. The article ends with a discussionof the recent conflict in Lebanon: this raised the crucial questionwhether the war on terror gave Israel a wide right to use force,even a pre-emptive right. The conflict highlights dramaticallythe practical significance of the divisions on the scope ofthe law of self-defence with regard to action against non-Stateactors, pre-emption and proportionality.  相似文献   
214.
215.
216.
Born too soon     
Gorman C 《Time》2004,164(16):73-74
  相似文献   
217.
This paper presents an overview of the organisation and the results of the collaborative exercises (CE) of the European DNA Profiling (EDNAP) Group's mitochondrial DNA population database project (EMPOP). The aim of the collaborative exercises was to determine whether uniformity of mtDNA sequencing results could be achieved among different laboratories. These were asked to sequence either the complete mtDNA control region or the two hypervariable regions HVI (16024-16365) and HVII (73-340) from DNA extracts, buccal swabs or bloodstains, proceeding in accordance with the protocol and strategies used in each individual laboratory. The results of the collaborative exercises were employed to identify possible sources of errors that could arise during the analysis and interpretation of mtDNA profiles. These findings were taken as a basis to tentatively make suitable arrangements for the construction of a high quality mtDNA database. One hundred fifty mtDNA profiles were submitted to the evaluating laboratory, and disaccording profiles were classified into four groups corresponding to the source of error: clerical errors, sample mix-ups, contaminations and discrepancies with respect to the mtDNA nomenclature. Overall, 14 disaccording haplotypes (16 individual errors) were observed. The errors included 10 clerical errors, 3 interpretation problems, 2 cases of sample mix-up and 1 case of point heteroplasmic mixture, where the 2 sequencing reactions brought inconsistent base calls. This corresponds to an error rate of 10.7% in a virtual mtDNA database consisting of the collaborative exercise results. However, this estimate is still conservative compared to conclusions drawn by authors of meanwhile numerous publications critically reviewing published mtDNA population databases. Our results and earlier published concerns strongly emphasize the need for appropriate safety regulations when mtDNA profiles are compiled for database purposes in order to accomplish the high standard required for mtDNA databases that are used in the forensic context.  相似文献   
218.
A new AIDS-in-the-Workplace program being implemented in Québec emphasizes the rights of workers living with HIV/AIDS. The program tackles issues such as confidentiality of HIV status, access to insurance benefits, discrimination, and the need for employers to take reasonable measures to accommodate the disabilities of workers.  相似文献   
219.
220.
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