全文获取类型
收费全文 | 922篇 |
免费 | 37篇 |
专业分类
各国政治 | 66篇 |
工人农民 | 56篇 |
世界政治 | 84篇 |
外交国际关系 | 49篇 |
法律 | 430篇 |
中国政治 | 9篇 |
政治理论 | 238篇 |
综合类 | 27篇 |
出版年
2023年 | 10篇 |
2022年 | 4篇 |
2021年 | 12篇 |
2020年 | 19篇 |
2019年 | 13篇 |
2018年 | 29篇 |
2017年 | 34篇 |
2016年 | 29篇 |
2015年 | 33篇 |
2014年 | 32篇 |
2013年 | 144篇 |
2012年 | 21篇 |
2011年 | 40篇 |
2010年 | 26篇 |
2009年 | 27篇 |
2008年 | 31篇 |
2007年 | 35篇 |
2006年 | 42篇 |
2005年 | 34篇 |
2004年 | 25篇 |
2003年 | 16篇 |
2002年 | 25篇 |
2001年 | 25篇 |
2000年 | 16篇 |
1999年 | 20篇 |
1998年 | 12篇 |
1997年 | 9篇 |
1996年 | 7篇 |
1995年 | 9篇 |
1994年 | 9篇 |
1993年 | 15篇 |
1992年 | 10篇 |
1991年 | 15篇 |
1990年 | 12篇 |
1989年 | 10篇 |
1988年 | 7篇 |
1987年 | 10篇 |
1986年 | 5篇 |
1985年 | 14篇 |
1984年 | 3篇 |
1983年 | 11篇 |
1982年 | 8篇 |
1981年 | 4篇 |
1979年 | 3篇 |
1978年 | 11篇 |
1977年 | 6篇 |
1976年 | 4篇 |
1972年 | 2篇 |
1971年 | 3篇 |
1969年 | 6篇 |
排序方式: 共有959条查询结果,搜索用时 15 毫秒
131.
We are currently facing an unprecedented increase in adolescent mental health problems resulting in alarmingly high levels of depression, anxiety, and suicidality. Significant mental health problems among youth pose unique challenges to families in the process of separation and divorce, as well as to family law professionals across all disciplines. The current adolescent mental health crisis calls for new ways of approaching our work with high conflict families to promote family connectedness and shift away from adversarial approaches that may exacerbate conflict and further destabilize families. As a conclusion to the special issue on adolescent mental health needs, the authors make multidisciplinary best practices recommendations and advocate for systems level changes in recognition of the needs of youth in crisis at this pivotal developmental stage. 相似文献
132.
Research Summary
The Kansas City Preventive Patrol Experiment (KCPPE) was seen by its developers to have produced “consistent evidence of the lack of effects of any consequence on crime,” a conclusion that was to have a strong impact on assumptions about police patrol for almost half a century. We identified the original official crime data from the KCPPE, and reanalyzed outcomes focusing on a comparison of the “proactive” versus “control” beats (“reactive beats” were criticized because of violations of treatment integrity); examining broad categories of crime (to increase statistical power); and using count regression models. Our findings are not unequivocal, but point to modest impacts of police patrol on crime in police beats.Policy Implications
Our findings suggest that lessons drawn for half a century from the KCPPE need to be revisited. The KCPPE does not show that police patrol in large areas has no influence on crime, and this finding is consistent with several more recent studies. At the same time, we note that the effects of patrol in the KCPPE using our analysis strategy, and those found in other studies of preventive patrol in larger areas, are about half that found in hot spots policing studies. This suggests that police agencies ideally should invest in focused hot spots policing initiatives. However, absent an ability to manage such initiatives, or the crime analysis capabilities to identify crime hot spots routinely, simpler preventive patrol schemes to utilize uncommitted patrol time can be seen as potentially effective in preventing crime. 相似文献133.
134.
AbstractDespite an overall decrease in residential mobility after the 2007 housing crisis, many households, particularly those that are low income, continue to move in pursuit of a better life. Traditional theories of residential mobility suggest that mobility will occur when housing and transportation costs are cumulatively greater than the cost of moving to a new location. At the same time, the influence of these factors is not likely to be uniform across geographic contexts or for moves up or down the metropolitan hierarchy. Our analysis examines how well affordability measures explain patterns of county-level residential mobility. Specifically, we contrast conventional measures of affordability focused on the ratio of income to housing expense with measures of location affordability that factor in both housing and transportation costs. We find that whereas households tend to move from lower to higher cost locations, transit affordability at the destination plays an important role in mobility decisions. 相似文献
135.
136.
P. M. Amos‐Wilson 《公共行政管理与发展》1999,19(3):219-229
This article considers issues concerning women's managerial careers in the Ghanaian Civil Service, which have emerged from an analysis of data collected in Accra as part of a Government of Ghana project supported by the United Kingdom Department for International Development. This examined the position and status of Women in Public Life in Ghana and was known as the WIPL project. Within this project, information was collected from women civil servants, and it is this which is presented here. Copyright © 1999 John Wiley & Sons, Ltd. 相似文献
137.
UK abortion law remains unsettled, and subject to on‐going controversy and reform. This article offers a comprehensive critique of all reforms implemented or proposed since 2016. It examines reforms proposed in both Houses of Parliament and contextualises them within a public law analysis, showing both that the complex parliamentary processes relating to Private Members’ Bills have frustrated reform attempts, and that these attempts have been contradictory in their aims between the two Houses. Secondly, it examines the unique positions of Northern Ireland, Scotland and Wales to show the extent to which devolutionary settlements have influenced both reforms and executive involvement. Finally, it examines the potential impact of the courts on abortion law following Re Northern Ireland Human Rights Commission's Application for Judicial Review, showing that the Supreme Court's reframing of the debate in human rights terms is likely to affect abortion law, not only in Northern Ireland, but in the whole of the UK. 相似文献
138.
Analyzing and Interpreting Lime Burials from the Spanish Civil War (1936–1939): A Case Study from La Carcavilla Cemetery
下载免费PDF全文
![点击此处可从《Journal of forensic sciences》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Eline M. J. Schotsmans Ph.D. Almudena García‐Rubio M.Sc. Howell G. M. Edwards Ph.D. Tasnim Munshi Ph.D. Andrew S. Wilson Ph.D. Luis Ríos Ph.D. 《Journal of forensic sciences》2017,62(2):498-510
Over 500 victims of the Spanish Civil War (1936–1939) were buried in the cemetery of La Carcavilla (Palencia, Spain). White material, observed in several burials, was analyzed with Raman spectroscopy and powder XRD, and confirmed to be lime. Archaeological findings at La Carcavilla's cemetery show that the application of lime was used in an organized way, mostly associated with coffinless interments of victims of Francoist repression. In burials with a lime cast, observations made it possible to draw conclusions regarding the presence of soft tissue at the moment of deposition, the sequence of events, and the presence of clothing and other evidence. This study illustrates the importance of analyzing a burial within the depositional environment and taphonomic context. 相似文献
139.
Arelys Madero-Hernandez Rustu Deryol M. Murat Ozer Robin S. Engel 《Justice Quarterly》2017,34(5):759-787
This study tested the hypothesis that investments in early childhood schools have short-term crime reducing effects in neighborhoods. Time series data from the city of Tulsa, Oklahoma, were analyzed to evaluate the effects of an early childhood school built in the neighborhood of Kendall-Whittier as part of a larger neighborhood revitalization plan, on violent and property crime. Results revealed that after controlling for city-wide crime trends and monthly fluctuations, violent crime declined significantly in Kendall-Whittier. Further analysis indicated that the possible crime-reducing effects of school investments on violent crime spread beyond Kendall-Whittier, and no displacement was found. The results for property crime were mixed. The study demonstrates the use of clustering analysis, a useful tool in neighborhood-level research to identify comparison neighborhoods. The findings shed light on the possibility that investments in early childhood schools can yield results in a shorter term than anticipated, making them a desirable component of urban revitalization. 相似文献
140.
Bullet embolism is a relatively unusual complication of gunshot wounds. Embolism to the right atrium comprises <5% of all reported intravascular bullet emboli. We report an additional case of bullet embolus to the right atrium of a 0.38-caliber bullet following a gunshot wound to the chest. The intracardiac bullet was recognized radiologically on presentation, but the patient was hemodynamically stable and managed conservatively, with the bullet left in place. The missile remained within the heart without clinical significance for several years and was recovered from the right atrium only at the time of autopsy. To the best of our knowledge, this is the first documented case of a 0.38-caliber bullet which embolized to the right atrium and remained inconsequential for an extended period of time. 相似文献