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   2367篇
  免费   542篇
各国政治   108篇
工人农民   17篇
世界政治   50篇
外交国际关系   90篇
法律   1721篇
中国共产党   21篇
中国政治   68篇
政治理论   599篇
综合类   235篇
  2024年   1篇
  2023年   9篇
  2022年   8篇
  2021年   46篇
  2020年   71篇
  2019年   187篇
  2018年   173篇
  2017年   138篇
  2016年   169篇
  2015年   146篇
  2014年   158篇
  2013年   459篇
  2012年   240篇
  2011年   179篇
  2010年   115篇
  2009年   97篇
  2008年   140篇
  2007年   128篇
  2006年   103篇
  2005年   89篇
  2004年   61篇
  2003年   80篇
  2002年   38篇
  2001年   34篇
  2000年   12篇
  1999年   10篇
  1998年   4篇
  1997年   1篇
  1993年   1篇
  1992年   3篇
  1990年   3篇
  1989年   1篇
  1988年   2篇
  1987年   2篇
  1985年   1篇
排序方式: 共有2909条查询结果,搜索用时 78 毫秒
941.
Callous‐unemotional (CU) traits (e.g., lack of guilt and empathy) are a risk factor associated with antisocial behavior. Youth with CU traits can be differentiated by varying levels of co‐occurring anxiety. In this study, we examined CU variants in incarcerated adolescent females (n = 109) and their associations with emotional and behavioral problems and history of maltreatment. Semi‐structured interviews were also conducted with a subsample of the participants (n = 13). Participants with CU traits and anxiety had similar levels of conduct problems compared to individuals with high CU traits without anxiety, but they reported more childhood maltreatment (especially sexual abuse).  相似文献   
942.
Legislators' private financial holdings affect policy decisions. Due to financial self‐interest, we theorize that legislators whose personal investment portfolios include equities from firms affected by proposed policies vote for legislation that benefits those firms. We also theorize that legislators with greater personal exposure to equity investments support policies that benefit equities markets generally. We create a novel data set of legislators' personal stock investments and examine major congressional actions since the 1990s on financial deregulation and market intervention. US House members who own stocks in firms who benefit from financial deregulation vote for deregulation. House members with greater exposure to financial and automotive stocks support the financial and auto bailouts, respectively. General exposure to equities markets is also associated with support for key legislation boosting markets. The normative implications are significant, as legislators' private interests influence decisions in the public sphere.  相似文献   
943.
Infertility is a medical diagnosis impacting 48.5 million couples globally. Infertility impacts physical and emotional health as well as social and romantic relationships. People with infertility report feelings of distress, grief, anxiety and depression. Couples notice changes in their relationships; some report becoming emotionally closer while others report relationship difficulties. People may feel more isolated due to lack of social support. People that use third party reproduction, such as donor egg, sperm, embryo or gestational carriers, have additional emotional impacts during pregnancy and parenting. Continuing changes to laws complicate international fertility care, particularly given the ongoing COVID‐19 pandemic.  相似文献   
944.
Conversion therapy is a practice used to “change” an individual's sexual orientation from homosexual to heterosexual. Parents who expose their child to conversion therapy drastically increase the child's likelihood of developing anxiety, depression and self‐destructive behavior. Currently, 18 states ban mental health professionals from conducting conversion therapy. However, in those states, if a mental health professional conducts the therapy, the penalty is only a relatively small fine for unprofessional conduct. Additionally, to report their therapist, victims must file a complaint, which poses difficulties for minors. This Note proposes a criminal statute for mental health professionals who conduct conversion therapy.  相似文献   
945.
Within our civilian population, Intimate Partner Violence (IPV) has become a major health problem. Consequences of anger and aggression have resulted in incarceration rates which place the United States as the world's leader with 2.2 million people in prisons and jails. The current treatment of anger and aggression is based primarily on theories that were developed in the early 1980s. Advances in neuroscientific knowledge have exponentially added to our understanding of the underlying biological basis and neuroanatomy of violence and aggression. Through a binaural sound‐based non‐verbal intervention, we have found a key to unlock long‐term memory (Reconsolidation) that facilitates rapid remediation of anger and violence issues. Within our Pilot Study findings, a number of our combat‐veterans with Post‐Traumatic Stress Disorder (PTSD) experienced a positive transformation in their capacity to evidence empathy, intimacy and social engagement as contrasted with their prior isolative tendencies. We extrapolate how this intervention might positively impact those engaged in Anger Management (AM) and IPV programs.  相似文献   
946.
Co‐authorship is an important indicator of scientific collaboration. Co‐authorship networks are composed of sub‐communities, and researchers can gain visibility by connecting these insulated subgroups. This article presents a comprehensive co‐authorship network analysis of Swiss political science. Three levels are addressed: disciplinary cohesion and structure at large, communities, and the integrative capacity of individual researchers. The results suggest that collaboration exists across geographical and language borders even though different regions focus on complementary publication strategies. The subfield of public policy and administration has the highest integrative capacity. Co‐authorship is a function of several factors, most importantly being in the same subfield. At the individual level, the analysis identifies researchers who belong to the “inner circle” of Swiss political science and who link different communities. In contrast to previous research, the analysis is based on the full set of publications of all political researchers employed in Switzerland in 2013, including past publications.  相似文献   
947.
Recent experimental research suggests that ordinary citizens are capable of behaving in a democratic and deliberative way in controversial political debates, when given the right instructions. In this study, we test the potential of such instructions in contexts where levels of polarization, conflict and social marginalization are high. Using a randomized controlled experimental design, we test the effect of encouraging members of marginalized and conflict‐affected communities in Colombia to live up to the deliberative ideal, including free participation, mutual respect, justification of arguments, and contributing to the common good. Results indicate that deliberative instructions have a positive effect on intervention levels, but fail to increase discourse quality. We also find that socio‐economic differences (especially education and gender), as well as inter‐group trust dynamics, explain much of the variation in discourse quality. Promoting deliberative democracy under unfavorable conditions might therefore require a combination of short‐term policy measures aimed at increasing communal trust, long‐term efforts to improve schooling levels, and ensuring constraint‐free participation. There is, however, no treatment yet that can ensure deliberation success.  相似文献   
948.
Craniofacial superimposition is a technique potentially useful for the identification of unidentified human remains if a photo of the missing person is available. We have tested the reliability of the 2D‐3D computer‐aided nonautomatic superimposition techniques. Three‐dimension laser scans of five skulls and ten photographs were overlaid with an imaging software. The resulting superimpositions were evaluated using three methods: craniofacial landmarks, morphological features, and a combination of the two. A 3D model of each skull without its mandible was tested for superimposition; we also evaluated whether separating skulls by sex would increase correct identifications. Results show that the landmark method employing the entire skull is the more reliable one (5/5 correct identifications, 40% false positives [FP]), regardless of sex. However, the persistence of a high percentage of FP in all the methods evaluated indicates that these methods are unreliable for positive identification although the landmark‐only method could be useful for exclusion.  相似文献   
949.
Research has demonstrated that the presence of others shifts decision‐making about risky/deviant behavior. One reason for this shift could be changes in the anticipated experience of formal sanctions, informal costs, and rewards. To investigate this possibility, this study conducted two randomized controlled trials with hypothetical vignettes, in which a range of how many other people were also involved in the criminal act defined the treatment conditions. Across two samples of university students (Ns = 396 and 263), the results revealed that as the size of the involved group increased, the anticipated experience of sanction risk and several informal social costs associated with engaging in the act decreased, and the anticipated experience of two rewards increased. Additional analyses suggest that, with one exception in each data set, these changes are not only tied to the solo/group distinction.  相似文献   
950.
In a comprehensive study to assess various aspects of the performance of qualified forensic firearms examiners, volunteer examiners compared both bullets and cartridge cases fired from three different types of firearms. They rendered opinions on each comparison according to the Association of Firearm & Tool Mark Examiners (AFTE) Range of Conclusions, as Identification, Inconclusive (A, B, or C), Elimination, or Unsuitable. In this part of the study, comparison sets used previously to characterize the overall accuracy of examiners were blindly resubmitted to examiners to assess the repeatability (105 examiners; 5700 comparisons of bullets and cartridge cases) and reproducibility (191 examiners of bullets, 193 of cartridge cases; 5790 comparisons) of firearms examinations. Data gathered using the prevailing AFTE Range were also recategorized into two hypothetical scoring systems. Consistently positive differences between observed agreement and expected agreement indicate that the repeatability and reproducibility of examiners exceed chance agreement. When averaged over bullets and cartridge cases, the repeatability of comparison decisions (involving all five levels of the AFTE Range) was 78.3% for known matches and 64.5% for known nonmatches. Similarly averaged reproducibility was 67.3%% for known matches and 36.5% for known nonmatches. For both repeatability and reproducibility, many of the observed disagreements were between a definitive and inconclusive category. Examiner decisions are reliable and trustworthy in the sense that identifications are unlikely when examiners are comparing non-matching items, and eliminations are unlikely when they are comparing matching items.  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