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   356篇
  免费   12篇
各国政治   3篇
工人农民   38篇
世界政治   21篇
外交国际关系   6篇
法律   191篇
中国政治   8篇
政治理论   95篇
综合类   6篇
  2022年   3篇
  2021年   2篇
  2020年   8篇
  2019年   12篇
  2018年   11篇
  2017年   8篇
  2016年   15篇
  2015年   15篇
  2014年   8篇
  2013年   42篇
  2012年   15篇
  2011年   7篇
  2010年   9篇
  2009年   7篇
  2008年   15篇
  2007年   17篇
  2006年   12篇
  2005年   5篇
  2004年   3篇
  2003年   8篇
  2002年   6篇
  2001年   9篇
  2000年   9篇
  1999年   5篇
  1998年   4篇
  1997年   8篇
  1996年   2篇
  1995年   7篇
  1994年   6篇
  1993年   5篇
  1992年   6篇
  1991年   7篇
  1990年   3篇
  1989年   4篇
  1988年   6篇
  1987年   5篇
  1985年   3篇
  1984年   5篇
  1983年   2篇
  1981年   14篇
  1980年   11篇
  1979年   2篇
  1977年   2篇
  1975年   2篇
  1973年   2篇
  1970年   1篇
  1969年   2篇
  1967年   1篇
  1966年   2篇
  1964年   1篇
排序方式: 共有368条查询结果,搜索用时 140 毫秒
71.
The following is an exchange concerning the concept of ‘illiberal moderates’ and its implications for a new global architecture as well as for a worldview that sees the evolution of a global core of shared values which favour domestic and international security, in sharp contrast to the ‘clash of civilizations’ thesis. The original statement was published in the Cambridge Review of International Affairs (Etzioni 2006). A more extensive treatment can be found in Part III of Security first: for a muscular, moral foreign policy (Etzioni 2007b), which examines texts of four religious and two secular belief systems as well as review of relevant public opinion polls and ‘traveller notes’. Here follows a brief summary of the main thesis, followed by comments from prominent scholars and Etzioni's response to these comments.  相似文献   
72.
73.
This study was designed to determine the effects of various environmental factors on the deoxyribonucleic acid (DNA) obtained from dental pulp. Extracted teeth were subjected to the following conditions: varying pH (3,7,10); temperature (4 degrees C, 25 degrees C, 37 degrees C, incineration); humidity (20%, 66%, 98%); various types of soil (sand, potting soil, garden soil); seawater; burying the teeth outdoors, and aging (one week to six months). In addition, teeth that had been extracted and held at room temperature for 16 and 19 years were also examined. Following isolation of DNA, the samples were analyzed on yield gels to determine the concentration and integrity of the recovered DNA. Restriction digestion with Pst I was followed by electrophoresis of the generated fragments, Southern transfer to nylon membranes, and hybridization to both human and bacterial probes. It was determined that, aside from soil, the environmental conditions examined did not affect the ability to obtain high-molecular-weight human DNA from dental pulp. Restriction fragment length polymorphic (RFLP) analysis of selected samples was performed. Dental pulp patterns were compared with bloodstain exemplars, revealing matching patterns, although an increase in band-shifting was observed with extended exposure to elevated temperatures.  相似文献   
74.
75.
76.
This article will address the legal obligations of employers in non-union settings toward employees who request pregnancy leave, parental or medical leave, workers' compensation leave, and other forms of disability leave. Specifically, this article will address the legal standards set forth under the Pregnancy Discrimination Act, various state pregnancy and family leave acts, workers' compensation retaliatory discharge authority, and the Americans With Disabilities Act of 1990. In addition, this article will provide practical guidance for employers in formulating effective leave policies that provide the maximum amount of operational flexibility while at the same time minimizing the risk of costly and excessive litigation.  相似文献   
77.
78.
79.
80.
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