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   610篇
  免费   46篇
各国政治   35篇
工人农民   93篇
世界政治   74篇
外交国际关系   51篇
法律   278篇
中国政治   4篇
政治理论   118篇
综合类   3篇
  2023年   9篇
  2022年   6篇
  2021年   6篇
  2020年   12篇
  2019年   30篇
  2018年   29篇
  2017年   42篇
  2016年   39篇
  2015年   22篇
  2014年   24篇
  2013年   109篇
  2012年   25篇
  2011年   20篇
  2010年   19篇
  2009年   22篇
  2008年   22篇
  2007年   22篇
  2006年   21篇
  2005年   17篇
  2004年   24篇
  2003年   18篇
  2002年   18篇
  2001年   7篇
  2000年   7篇
  1999年   4篇
  1998年   5篇
  1997年   6篇
  1996年   6篇
  1995年   5篇
  1994年   2篇
  1993年   10篇
  1992年   4篇
  1991年   6篇
  1990年   4篇
  1989年   2篇
  1988年   3篇
  1987年   4篇
  1985年   2篇
  1984年   3篇
  1983年   2篇
  1982年   1篇
  1981年   2篇
  1980年   6篇
  1978年   1篇
  1977年   2篇
  1976年   1篇
  1975年   1篇
  1970年   3篇
  1968年   1篇
排序方式: 共有656条查询结果,搜索用时 15 毫秒
61.
62.
Much of the attention surrounding local climate protection in the United States is associated with two networks: ICLEI Local Governments for Sustainability's Cities for Climate Protection and the U.S. Conference of Mayors’ Climate Protection Agreement (MCPA). However, the impact of these networks on member‐city actions has not been clearly established. This paper examines whether, and to what extent, participation in climate networks leads to the implementation of greenhouse gas (GHG)‐reducing policies, above and beyond what would have been done in their absence. To account for the possibility that cities which join climate networks are systematically different from those that do not and control for self‐selection induced bias, three statistical techniques—propensity score matching, Heckman full information maximum likelihood, and instrumental variables—are employed to estimate the “treatment effect” of participation. Results suggest that impact is network specific: ICLEI membership causes small to moderate increases in cities’ GHG‐relevant activity, whereas the MCPA has no such effect. The characteristics of each network are evaluated in light of these findings.  相似文献   
63.
64.
Car key burglary has recently become the focus of empirical investigation as offenders, no longer able to steal vehicles without first obtaining their keys, resort to "burgling" target properties. Research surrounding the modus operandi of these offenses is beginning to emerge; however, little attention has been paid to investigating the characteristics of car key burglary offenders. Challenging the assumption that car key burglary offenses are perpetrated by regular burglars, this study aims to differentiate between offenders. Logistic regression analysis of 110 car key and 110 regular burglary offenders revealed that car key burglars are more likely to have previous vehicle theft convictions and are also more likely to be detected on information supplied to the police than regular burglars. Regular burglars are more likely to have previous shoplifting convictions. It was concluded that car key burglars are a distinct sample of offenders and the implications of these findings are discussed.  相似文献   
65.
This paper examines how the use of unmanned aircraft systems (UASs) for surveillance in civil applications impacts upon privacy and other civil liberties. It argues that, despite the heterogeneity of these systems, the same “usual suspects” – the poor, people of colour and anti-government protesters – are targeted by UAS deployments. It discusses how current privacy-related legislation in the US, UK and European Union might apply to UASs. We find that current regulatory mechanisms do not adequately address privacy and civil liberties concerns because UASs are complex, multimodal surveillance systems that integrate a range of technologies and capabilities. The paper argues for a combination of top-down, legislated requirements and bottom-up impact assessments to adequately address privacy and civil liberties.  相似文献   
66.
There is a lack of data on the prevalence of emotional abuse in youth. The aim of this study was thus to estimate the prevalence of emotional abuse in intimate partnerships among young women in rural South Africa and to measure the association between lifetime experience of emotional abuse (with and without the combined experience of physical and/or sexual abuse) and adverse health outcomes. Between 2002 and 2003, young women from 70 villages were recruited to participate in the cluster randomized controlled trial of an HIV behavioral intervention, Stepping Stones. Data was obtained through the administration of a questionnaire at baseline. Of the 1,293 women who had ever been partnered, 189 (14.6%) had experienced only emotional abuse in their lifetimes. Three hundred sixty-six women (28.3%) experienced emotional abuse with physical and/or sexual abuse in their lifetimes, and one hundred forty-four women (11.1%) experienced physical and/or sexual abuse without emotional abuse. Hazardous drinking was associated with the experience of physical and/or sexual abuse, with (OR 6.0, 95% CI [1.0, 36.6]) and without emotional abuse (OR 5.8, 95% CI [1.1, 29.4]). Illicit drug use (OR 5.6, 95% CI [2.4, 12.6]), having depressive symptoms (OR 2.9, 95% CI [1.2, 4.2]), having psychological distress (OR 1.9, 95% CI [1.4, 2.6]), and suicidality (OR 79.0, 95% CI [17.3, 359.6]) was associated with the experience of emotional abuse with physical and/or sexual abuse. Suicidality was also strongly associated with having experienced emotional abuse alone (OR 79.5, 95% CI [16.7, 377.4]). This study showed that emotionally abused young women had a greater risk of suicidality than those experiencing no abuse and that the combined experience of emotional with physical and/or sexual abuse was strongly associated with poor mental health outcomes.  相似文献   
67.
Preliminary research suggests that child abuse is indirectly associated with female-perpetrated intimate partner violence via posttraumatic stress disorder (PTSD) symptoms and anger. To date, however, no known studies have investigated these relationships for physical and psychological dating violence within a female college sample. Therefore, the purpose of the current study was to examine the impact of child abuse history, PTSD symptoms, and anger arousal on female-perpetrated physical and psychological dating violence. Female undergraduates (N = 496) completed measures of child abuse, PTSD symptoms, anger arousal, and dating violence perpetration as part of a larger trauma and violence study. Results indicated that child abuse directly predicted female-perpetrated physical and psychological dating violence and indirectly impacted female-perpetrated physical and psychological dating violence via PTSD symptoms and anger arousal. The direct relationships between PTSD symptoms and female-perpetrated physical and psychological dating violence were nonsignificant after controlling for the effect of anger arousal.  相似文献   
68.
This paper focuses on the creation of the criminal insane asylum in Italy between unification in 1861 and World War I. The establishment of criminal insane asylums was a triumph of the positivist criminology of Cesare Lombroso, who advocated for an institution to intern insane criminals in his classic work, Criminal Man (1876). As a context for the analysis of the birth of the criminal insane asylum in Italy, this essay also outlines the history of the insanity plea in Italian criminal law and the young discipline of psychiatry during the fifty years after Italian unification.  相似文献   
69.
Few cases of natural sudden death presenting as an undiagnosed lymphoma have been reported in the literature, especially in adolescents. Herein we provide a report of sudden death caused by undiagnosed classic Hodgkin lymphoma (cHL). We describe an 18-year-old female who collapsed after several weeks of weight loss, decreased appetite, and dyspnea. At autopsy, a bulky mass arising in the mediastinum and neck compressed the esophagus and trachea, surrounded the great vessels, obliterated the pericardial sac, and infiltrated the myocardium. The lungs were collapsed and large pleural effusions were present. The tumor burden, which weighed at least 2710 g in aggregate, was entirely above the diaphragm. Microscopic examination of the masses showed features typical for nodular sclerosis cHL including large bands of sclerosis, numerous Hodgkin/Reed-Sternberg (HRS) cells, and an eosinophil-rich mixed inflammatory cell infiltrate. Immunohistochemical stains showed the HRS cells to be uniformly positive for CD30 and CD15 and negative for CD3, CD20, CD45, and PAX5. This case exemplifies a rare sudden natural death due to previously undiagnosed cHL in a young patient.  相似文献   
70.
Trans‐municipal networks (TMNs) have reshaped the landscape around local government action on global climate policy. Past research has focused on why cities join TMNs and the impact that membership has on local action. This study considers a potential reverse effect: namely, that cities' membership choices position them to influence TMNs' overall priorities. In considering this, we emphasize the role of network administrative organizations (NAOs) and posit that the multiple climate‐related networks, which share members and operate in overlapping geographic and issue spaces, are bound together as part of a meta‐network. We utilize social network analysis and data on membership in four climate‐related TMNs to examine the factors that shape how cities can influence meta‐network priorities. We find that cities with local vulnerabilities tend to be located in network positions that enable them to influence the meta‐network's overall priorities.  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