全文获取类型
收费全文 | 645篇 |
免费 | 24篇 |
专业分类
各国政治 | 49篇 |
工人农民 | 46篇 |
世界政治 | 61篇 |
外交国际关系 | 33篇 |
法律 | 301篇 |
中国政治 | 7篇 |
政治理论 | 145篇 |
综合类 | 27篇 |
出版年
2023年 | 11篇 |
2022年 | 3篇 |
2021年 | 9篇 |
2020年 | 14篇 |
2019年 | 9篇 |
2018年 | 20篇 |
2017年 | 23篇 |
2016年 | 24篇 |
2015年 | 20篇 |
2014年 | 27篇 |
2013年 | 89篇 |
2012年 | 13篇 |
2011年 | 27篇 |
2010年 | 16篇 |
2009年 | 14篇 |
2008年 | 21篇 |
2007年 | 26篇 |
2006年 | 27篇 |
2005年 | 25篇 |
2004年 | 16篇 |
2003年 | 10篇 |
2002年 | 20篇 |
2001年 | 18篇 |
2000年 | 14篇 |
1999年 | 9篇 |
1998年 | 8篇 |
1997年 | 5篇 |
1996年 | 7篇 |
1995年 | 7篇 |
1994年 | 7篇 |
1993年 | 10篇 |
1992年 | 5篇 |
1991年 | 12篇 |
1990年 | 10篇 |
1989年 | 9篇 |
1988年 | 4篇 |
1987年 | 4篇 |
1986年 | 4篇 |
1985年 | 9篇 |
1983年 | 10篇 |
1982年 | 6篇 |
1981年 | 4篇 |
1980年 | 4篇 |
1978年 | 7篇 |
1977年 | 5篇 |
1976年 | 4篇 |
1973年 | 2篇 |
1972年 | 2篇 |
1971年 | 3篇 |
1969年 | 6篇 |
排序方式: 共有669条查询结果,搜索用时 15 毫秒
91.
Afiya Mbilishaka Moriah Ray Jasmine Hall Ingrid-Penelope Wilson 《African and Black Diaspora: An International Journal》2020,13(1):114-126
ABSTRACTPeople across the African Diaspora have developed a complex socio-visual-language system of hair as a means of self-expression; however, the decades of economic sanctions in Cuba generated a unique political dynamic that has shaped concepts of self-image and cultural expressions. Sixteen Afro-Cuban women were interviewed about the cultural significance of their hair using The Guided Hair Autobiography methodology. Participant themes included aesthetic pride and confidence, hair bullying and embarrassment, and hair damage and distress. A Cuban cultural critique underlines how Afro-Cuban women have been socialized to have a bias towards straightened long hair over tightly coiled hair textures. These findings suggest that despite the ‘raceless’ political revolutionary spirit infused into Cuban cultural ideology, people of African descent process racial politics and identity through hair. 相似文献
92.
93.
Michael T. Truver PhD Michele M. Crosby PhD Alex T. Gillette MS Sara C. Brogan BS Jennifer L. Hoyer MS Chris W. Chronister PhD Wilson A. Broussard MD Russell S. Vega MD Bruce A. Goldberger PhD 《Journal of forensic sciences》2023,68(4):1419-1424
Novel synthetic opioids contribute considerably to the opioid epidemic, especially with the frequent emergence of structurally similar compounds. This case report describes a fatal intoxication involving 2-methyl AP-237. A 54-year-old Caucasian male was found deceased from an apparent drug overdose. A plastic container labeled “2MAP” and a cut straw were found in the decedent's backpack at the scene. A white substance found in the container tested positive for fentanyl by field testing. According to his medical history, the decedent was treated for a drug overdose 3 years prior to his death. With no diagnostic findings at autopsy, the case was submitted for toxicological analysis. An unknown substance was detected in peripheral blood and urine using gas chromatography with nitrogen phosphorous detection (GC-NPD). Further testing was conducted using gas chromatography–mass spectrometry (GC–MS) and liquid chromatography-quadrupole-time-of-flight mass spectrometry (LC-QTOF-MS) which confirmed the presence of 2-methyl AP-237 and potential metabolites in blood and urine. Quantitation by GC-NPD revealed concentrations of 2-methyl AP-237 in blood and urine at 480 ng/mL and 4200 ng/mL, respectively. The toxicological analysis also identified and quantitated alprazolam in the blood at 55 ng/mL. Additionally, the metabolism of 2-methyl AP-237 was investigated and three hydroxylated metabolites were identified in peripheral blood and urine. Limited literature is available for the detection and quantitation of 2-methyl AP-237 in postmortem specimens. Given the toxicological findings with unremarkable autopsy findings, this case is an example of a fatal intoxication involving 2-methyl AP-237. 相似文献
94.
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
95.
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96.
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
97.
98.
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
99.
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
100.
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
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