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   3030篇
  免费   496篇
各国政治   470篇
工人农民   136篇
世界政治   305篇
外交国际关系   170篇
法律   1366篇
中国政治   80篇
政治理论   963篇
综合类   36篇
  2023年   14篇
  2022年   13篇
  2021年   43篇
  2020年   72篇
  2019年   197篇
  2018年   147篇
  2017年   187篇
  2016年   203篇
  2015年   168篇
  2014年   161篇
  2013年   737篇
  2012年   128篇
  2011年   136篇
  2010年   145篇
  2009年   88篇
  2008年   119篇
  2007年   89篇
  2006年   80篇
  2005年   63篇
  2004年   61篇
  2003年   48篇
  2002年   50篇
  2001年   41篇
  2000年   46篇
  1999年   39篇
  1998年   19篇
  1997年   33篇
  1996年   25篇
  1995年   29篇
  1994年   29篇
  1993年   29篇
  1992年   27篇
  1991年   26篇
  1990年   21篇
  1989年   14篇
  1988年   16篇
  1987年   13篇
  1986年   18篇
  1985年   16篇
  1984年   16篇
  1983年   17篇
  1982年   8篇
  1981年   18篇
  1980年   9篇
  1979年   8篇
  1978年   14篇
  1977年   9篇
  1976年   4篇
  1974年   6篇
  1967年   5篇
排序方式: 共有3526条查询结果,搜索用时 0 毫秒
41.
This study investigated the relationship between social information processing (SIP) and both relational and overt, physical aggression in a longitudinally-followed sample of 228 adolescent girls (ages 11–18; 140 with ADHD and 88 comparison girls). During childhood, girls participated in naturalistic summer camps where peer rejection, overt physical aggression, and relational aggression were assessed via multiple informants and methods. Approximately 4.5 years later, these girls participated in follow-up assessments during which they completed a commonly-used vignette procedure to assess SIP; overt and relational aggression were again assessed through multiple informants. Correlations between (a) overt and relational aggression and (b) maladaptive SIP were modest in this female adolescent sample. However, relationships between aggression and SIP were stronger for the comparison girls than for the girls with ADHD. The relevance of SIP models for adolescent girls and clinical implications of findings are discussed.
Amori Yee MikamiEmail:
  相似文献   
42.
This study examines the relationship between having other-sex versus same-sex best friends and antisocial behavior throughout early adolescence. Participants (N = 955) were recruited in 6th grade and followed longitudinally through 7th, 8th, and 11th grades. Participants were 58% ethnically diverse youth and 48% girls. Results indicate that the frequency of other-sex best friendship remained stable from 6th to 7th grade but significantly increased from 8th to 11th grade. Higher rates of concurrent antisocial behavior were related to having other-sex best friends in 6th grade but not in 7th grade. In 8th grade, there was an interaction between friendship and the sex of friends. Boys with only same-sex best friends and girls with other-sex best friends endorsed higher rates of antisocial behavior. Having other-sex best friends predicted antisocial behavior from 6th to 7th grade and 8th to 11th grade, especially for girls. Implications for the development of early adolescent friendship and antisocial behavior are discussed.
Elizabeth A. Stormshak (Corresponding author)Email:
  相似文献   
43.
44.
Lee H. Igel 《Society》2008,45(6):512-514
Most people mistakenly assume that health care first became a major political issue in 1945 because President Harry S. Truman’s special address to Congress on Nov. 19 of that year marked the first time a sitting president publicly endorsed a national health-care program. But the question of whether—or to what extent—it is the responsibility of government to subsidize health care for its citizens has been around for a much longer amount of time. Now that health care has become a major focus of domestic political debate, especially in light of the impending presidential election, this article, modified from an entry in the forthcoming Encyclopedia of Campaigns, Elections, & Electoral Behavior (Sage Publications), serves to inform the reader of the origins and history of health care as a campaign issue.
Lee H. IgelEmail:
  相似文献   
45.
46.
In the Riau Islands of Indonesia significant numbers of women have entered into marriages with men from the nearby countries of Singapore and Malaysia. In many cases, neither spouse migrates after marriage: instead, husband and wife continue to reside in their country of origin. Their close geographical proximity means that the couples can see each other regularly while at the same time taking advantage of the economic opportunities presented by living on different sides of the border. These cross-border marriages challenge the normative model of the nuclear cohabiting couple/family. Our research into the motivations and desires of these cross-border couples living in the Riau borderlands reveals that space and mobility mediate their interactions with the Singaporean, Malaysian and Indonesian states, thus producing localized accounts of citizenship in which class mobility (rather than physical mobility) becomes the dominant frame through which they view state regulation of marriage and migration. This research challenges the state-centric tendencies in some of the scholarly literature on international and transnational marriage which places overwhelming emphasis on the ability of states to regulate access to citizenship rights. In presenting a view of inconsistent and sometimes incoherent states, we highlight the significant differences between perceptions of state influence and actual state practices in relation to the regulation of international marriages.  相似文献   
47.
Abstract

The current study surveyed a random sample of Texas law enforcement officers (n?=?109) about their knowledge regarding behaviors indicative of deception. The officers were not highly knowledgeable about this topic, overall performing at a chance level in assessing how various behavioral cues relate to deception. Confidence in one's skill was unrelated to accuracy, and officers who reported receiving the most training and utilizing these skills more often were more confident but no more accurate in their knowledge of the behaviors that typically betray deception. The authors compare these results to previous studies that have examined officers’ beliefs in other countries and discuss the implication of these results in terms of developing future training programs that may debunk the common misconceptions that officers possess.  相似文献   
48.
The forensic science community raised the need for improved evidence recognition, collection, and visualization analytical instrumentation for field and laboratory use. While the 3D optical techniques for imaging static objects have been extensively studied, there is still a major gap between current knowledge and collecting high‐quality footwear and tire impression evidence. Among optical means for 3D imaging, digital fringe projection (DFP) techniques reconstruct 3D shape from phase information, achieving camera‐pixel spatial resolution. This paper presents a high‐resolution 3D imaging technology using DFP techniques dedicated to footwear and tire impression capture. We developed fully automated software algorithms and a graphical user interface (GUI) that allow anyone without training to operate for high‐quality 3D data capture. We performed accuracy evaluations and comparisons comparing with the commercial high‐end 3D scanner and carried out qualitative tests for various impressions comparing with the current practices. Overall, our technology achieves similar levels of accuracy and resolution with a high‐end commercially available 3D scanner, while having the merits of being (1) more affordable; (2) much easier to operate; and (3) more robust. Compared with the current practice of casting, our technology demonstrates its superiority because it (1) is non‐destructive; (2) collects more evidence detail than casts, especially when an impression is fragile; (3) requires less time and money to collect each piece of evidence; and (4) results in a digital file that can easily be shared with other examiners.  相似文献   
49.
High‐throughput sequencing (HTS) of large panels of single nucleotide polymorphisms (SNPs) provides an alternative or complimentary approach to short tandem repeats (STRs) panels for the analysis of complex DNA mixture forensic samples. For STRs, methods to estimate individual contribution concentrations compare capillary electrophoresis peak heights, peak areas, or HTS allele read counts within a mixture. This article introduces three approaches (mean, median, and slope methods) for estimating individual DNA contributions to forensic mixtures for HTS/massively parallel sequencing (MPS) SNP panels. For SNPs, the major:minor allele ratios or counts, unique to each contributor, were compared to estimate contributor proportion within the mixture using the mean, median, and slope intercept for these alleles. The estimates for these three methods were typically within 5% of planned experimental contributions for defined mixtures.  相似文献   
50.
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