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   3509篇
  免费   132篇
各国政治   252篇
工人农民   103篇
世界政治   333篇
外交国际关系   237篇
法律   1412篇
中国共产党   40篇
中国政治   61篇
政治理论   1065篇
综合类   138篇
  2023年   13篇
  2022年   16篇
  2021年   33篇
  2020年   69篇
  2019年   69篇
  2018年   115篇
  2017年   99篇
  2016年   124篇
  2015年   78篇
  2014年   98篇
  2013年   525篇
  2012年   124篇
  2011年   134篇
  2010年   113篇
  2009年   109篇
  2008年   124篇
  2007年   149篇
  2006年   123篇
  2005年   132篇
  2004年   110篇
  2003年   95篇
  2002年   101篇
  2001年   92篇
  2000年   85篇
  1999年   64篇
  1998年   57篇
  1997年   49篇
  1996年   52篇
  1995年   46篇
  1994年   43篇
  1993年   35篇
  1992年   44篇
  1991年   51篇
  1990年   45篇
  1989年   46篇
  1988年   46篇
  1987年   20篇
  1986年   25篇
  1985年   25篇
  1984年   24篇
  1983年   24篇
  1982年   30篇
  1981年   38篇
  1980年   31篇
  1979年   13篇
  1978年   15篇
  1977年   11篇
  1975年   12篇
  1974年   12篇
  1967年   7篇
排序方式: 共有3641条查询结果,搜索用时 15 毫秒
881.
Using co-citation analysis, the present study attempts to rationalize and organize the combined alliance and innovation literature in order to determine its intellectual structure (i.e. its shared attributes such as models, theories, methods, findings, and implications), as well as to gain a deeper understanding of the most important research trends. More specifically, our goals are: (1) to delineate the intellectual structure of research on alliance and innovation, as represented in the academic literature; (2) to determine the subfields that constitute the intellectual structure and the relationships, if any, between these subfields; (3) to identify contributions that play a pivotal role in bridging two or more conceptual domains of research; and finally, (4) to map the intellectual structure in a two-dimensional space in order to visualize spatial distances between intellectual themes. Implications for future studies are then drawn.  相似文献   
882.
The present study highlights the characteristics of separated families in Italy for whom Parental Alienation Syndrome (PAS) has been diagnosed during court custody evaluations. The study analyzed the psychological reports of 12 court-appointed expert evaluations of families for whom PAS had been diagnosed. Twelve evaluations that did not receive the PAS diagnosis served as a control group. A specific coding system was used for data analysis. The results indicated that the alienating parents were always the parents who had custody of the children. Children who were diagnosed with PAS were predominantly the only child in the family, had identity problems and manifested manipulative behavior. The consultant in these cases suggested individual psychotherapy for the children and recommended foster care to the Social Services agency.  相似文献   
883.
Low self-control has emerged as a consistent and strong predictor of antisocial and delinquent behaviors. Using the twin subsample of the National Longitudinal Study of Adolescent Health (Add Health), genetic analyses were conducted to examine the genetic and environmental contributions to low self-control and offending as well as to their relationship with one another. The results revealed that low self-control and criminal behaviors are influenced by genetic and nonshared environmental factors with the effects of shared environmental factors being negligible. In addition, the co-variation between low self-control and criminal behaviors appears to be largely due to common genetic and nonshared environmental factors operating on both phenotypes. The implications of these findings on the current understanding of Gottfredson and Hirschi??s general theory of crime are discussed.  相似文献   
884.
Abstract: The diagnosis of early myocardial infarction (MI) after death, especially in the first few hours (c. 6 h) after the onset of MI, poses a challenge to the forensic pathologists. During this time, the damaged myocardium does not show grossly identifiable morphological changes and may not be recognized even with routine histological microscopic examination. However, the infarcted cardiac tissue releases certain chemicals that can be detected microscopically, two of these being cardiac troponin‐I (CT‐I) and complement C9 (C9). This study utilizes the importance of these two biomarkers immunohistochemically in an attempt to identify this early phase of MI. This study reveals that the early phase of MI of <6 h duration may be detected through immunohistochemical staining with CT‐I and C9. The ischemic/infarcted cardiac myofibers in the <6 h group display reduced/absent CT‐I staining as well as positive C9 staining.  相似文献   
885.
Two important perspectives on courts highlight fundamentally different elements of adjudication and yield distinct predictions about judicial outcomes. The Attitudinal Model of judicial voting posits judge ideology as a strong predictor of court outcomes. Alternatively, the Law and Economics perspective focuses on the settlement behavior of litigants and reasons that while judges may vote ideologically, litigants adapt to these ideological proclivities, nullifying the effect of judge ideology. This analysis focuses on reconciling expectations about the effects of judge ideology and litigant strategies by examining their contingent nature and the conditioning effects of institutional design. The analysis examines state supreme courts from 1995–1998 to identify empirical evidence supporting both perspectives. While some state supreme courts have discretionary dockets allowing judges greater opportunities to exercise their ideology, others lack discretionary docket control, making dockets and outcomes largely litigant driven. Support for each perspective largely hinges on this fundamental feature of institutional design.  相似文献   
886.
It is increasingly argued that the primary motive of the cybercriminal and the major reason for the continued growth in cyber attacks is financial gain. In addition to the direct financial impact of cybercrime, it can also be argued that the digital data and the information it represents that can be communicated through the Internet, can have additional intrinsic value to the cybercriminal. In response to the perceived value and subsequent demand for illicit data, a sophisticated and self-sufficient underground digital economy has emerged. The aim of this paper is to extend the author’s earlier research that first introduced the concept of the Cybercrime Execution Stack by examining in detail the underlying data objectives of the cybercriminal. Both technical and non-technical law enforcement investigators need the ability to contextualise and structure the illicit activities of the cybercriminal, in order to communicate this understanding amongst the wider law enforcement community. By identifying the potential value of electronic data to the cybercriminal, and discussing this data in the context of data collection, data supply and distribution, and data use, demonstrates the relevance and advantages of utilising an objective data perspective when investigating cybercrime.  相似文献   
887.
This study examined two theoretical models on the interaction between psychopathy, traumatic exposure, and lifetime posttraumatic stress in a sample of 81 male detainees. In Model 1, the interpersonal and affective features of psychopathy were assumed to protect against posttraumatic stress. In Model 2, the lifestyle and antisocial traits of psychopathy were assumed to lead to a lifestyle that increases the risk of traumatic exposure and subsequent posttraumatic stress. The authors found significant negative bivariate associations between Psychopathy Checklist-Revised (PCL-R) total, Interpersonal and Affective facet scores, and posttraumatic stress. Model 1 was confirmed, as they found the interaction between the Affective facet and traumatic exposure had a significant negative effect on posttraumatic stress. Model 2 was rejected. The authors' findings confirm that the interpersonal and affective features of psychopathy are associated with an emotional deficit and that the affective features of psychopathy are crucial for understanding the relationship between psychopathy and anxiety.  相似文献   
888.
889.
Abstract: The aim of this study was to compare the accuracy of three methods for age estimation in children: the measurements of open apices in tooth roots (T), the ratio between the total area of carpal bones and epiphyses of the ulna and radius (HW), and the combined method (THW). The sample consisted of 288 Caucasian Italian children (152 boys and 136 girls) aged between 5 and 15 years. Accuracy was determined as the difference between estimated age and chronological age, and accuracy was assessed by analyzing individuals’ orthopantomograms and hand‐wrist radiographs. Accuracies were 0.41 years for girls and 0.54 years for boys with the THW method; for the HW method, 1.00 years for girls and 0.92 years for boys; and for the T method, 0.62 years for girls and 0.71 years for boys. THW is the most accurate technique for age estimation in these children.  相似文献   
890.
The relationship between male rape myth acceptance, female rape myth acceptance, attitudes toward gay men, a series of gender role and sexism measures, victim blame and assault severity were investigated. It was predicted that men would display more negative, stereotypical attitudes than women and that male rape myth endorsement would be related to, and predicted by, the other attitude and attribution scales. Respondents comprised 323 undergraduates (146 males and 177 females) from a large University in the Northwest of England. Results broadly conformed to predictions, with men generally more negative than women, and male rape myth acceptance significantly related to female rape myth acceptance, negative attitudes about gay men, gender role attitudes, and victim blame. Furthermore, male rape myth acceptance was predicted by female rape myth acceptance, gender attitudes, and victim blame. Methodological issues and implications for future work and those working with victims are discussed.  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