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   2171篇
  免费   110篇
各国政治   144篇
工人农民   106篇
世界政治   216篇
外交国际关系   117篇
法律   1033篇
中国政治   12篇
政治理论   634篇
综合类   19篇
  2023年   11篇
  2022年   5篇
  2021年   19篇
  2020年   46篇
  2019年   56篇
  2018年   71篇
  2017年   92篇
  2016年   73篇
  2015年   58篇
  2014年   83篇
  2013年   332篇
  2012年   74篇
  2011年   99篇
  2010年   61篇
  2009年   79篇
  2008年   64篇
  2007年   85篇
  2006年   85篇
  2005年   86篇
  2004年   75篇
  2003年   87篇
  2002年   82篇
  2001年   42篇
  2000年   44篇
  1999年   38篇
  1998年   39篇
  1997年   39篇
  1996年   30篇
  1995年   35篇
  1994年   31篇
  1993年   21篇
  1992年   21篇
  1991年   16篇
  1990年   24篇
  1989年   14篇
  1988年   25篇
  1987年   16篇
  1986年   9篇
  1985年   18篇
  1984年   16篇
  1983年   12篇
  1982年   7篇
  1981年   9篇
  1980年   10篇
  1979年   5篇
  1978年   5篇
  1976年   7篇
  1973年   4篇
  1970年   3篇
  1967年   3篇
排序方式: 共有2281条查询结果,搜索用时 31 毫秒
311.
The Federal Home Loan Bank System has come under sharp criticism in recent years, and the question has been raised as to whether it still has a public purpose. In this article, we ask what leaders in the Federal Home Loan Banks view their institutions' purpose to be in light of legislative changes to their mandates in 1989 and 1999. Based on interviews with FHLB executive managers and board members, we identify three clearly distinguishable views of these institutions' mission: housing finance, support for the viability of community financial institutions, and support for and community development. We go on to identify some of the implications of these distinctive views for the behavior of the FHLBs and for their governance structures.  相似文献   
312.
313.
314.
315.
Terrorism and relative justice   总被引:1,自引:0,他引:1  
Terrorist violence and violent justice responses have much in common. While contextually dependant, both forms of violence lay claim to contestred legitimacies. The relationships between terrorism and justice responses require both theoretical and empirical examination if the prospects for controlling the violence they perpetrate is to be sharpened.
Mark FindlayEmail:
  相似文献   
316.
317.
Here, we describe a novel microarray-based approach for investigating the genomic diversity of Escherichia coli O157:H7 in a semi-high throughput manner using a high density, oligonucleotide-based microarray. This microarray, designed to detect polymorphisms at each of 60,000 base-pair (bp) positions within an E. coli genome, is composed of overlapping 29-mer oligonucleotides specific for 60 equally spaced, 1000-bp loci of the E. coli O157:H7 strain EDL933 chromosome. By use of a novel 12-well microarray that permitted the simultaneous investigation of 12 strains, the genomes of 44 individual isolates of E. coli O157:H7 were interrogated. These analyses revealed more than 150 single nucleotide polymorphisms (SNPs) and several deletions and amplifications in the test strains. Pyrosequencing was used to confirm the usefulness of the novel SNPs by determining their allelic frequency among a collection of diverse isolates of E. coli O157:H7. The tiling DNA microarray system would be useful for the tracking and identification of individual strains of E. coli O157:H7 needed for forensic investigations.  相似文献   
318.
Seventeen Y-chromosomal short tandem repeats (STRs), DYS19, DYS389I, DYS389II, DYS390, DYS391, DYS392, DYS393, DYS385ab, DYS437, DYS438, DYS439, GATA-H4, DYS448, DYS456, DYS458, DYS635 were typed in DNA samples from the Kalmyk population (n=99). The population is characterized by a high proportion of duplicated DYS19 alleles and deletions of the locus DYS448 on the background of the Central Asian haplogroup C*. AMOVA analysis reveals a close vicinity to Mongolian and Kazakh populations and large genetic distance to geographical neighbours from Russia, Ukraine and the Caucasus.  相似文献   
319.
Social interest in problems such as domestic violence is typically motivated by concerns regarding equity, rather than efficiency. However, we document that taking steps to reduce domestic violence by reporting it yields substantial benefits to external parties. Specifically, we find that although children exposed to as‐yet‐unreported domestic violence reduce the achievement of their classroom peers, these costs disappear completely once the parent reports the violence to the court. This suggests that the public has an interest in helping families to overcome their problems in general and to report domestic violence in particular. It also suggests that social and judicial interventions may help combat negative peer effects in schools.  相似文献   
320.
Mandatory data breach notification laws have been a significant legislative reform in response to unauthorized disclosures of personal information by public and private sector organizations. These laws originated in the state-based legislatures of the United States during the last decade and have subsequently garnered worldwide legislative interest. We contend that there are conceptual and practical concerns regarding mandatory data breach notification laws which limit the scope of their applicability, particularly in relation to existing information privacy law regimes. We outline these concerns here, in the light of recent European Union and Australian legal developments in this area.  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