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   1012篇
  免费   62篇
各国政治   52篇
工人农民   146篇
世界政治   93篇
外交国际关系   53篇
法律   518篇
中国政治   14篇
政治理论   195篇
综合类   3篇
  2024年   2篇
  2023年   17篇
  2022年   8篇
  2021年   14篇
  2020年   28篇
  2019年   50篇
  2018年   63篇
  2017年   81篇
  2016年   77篇
  2015年   42篇
  2014年   44篇
  2013年   145篇
  2012年   55篇
  2011年   53篇
  2010年   33篇
  2009年   45篇
  2008年   48篇
  2007年   52篇
  2006年   48篇
  2005年   30篇
  2004年   16篇
  2003年   13篇
  2002年   13篇
  2001年   8篇
  2000年   4篇
  1999年   10篇
  1998年   7篇
  1997年   6篇
  1996年   4篇
  1995年   8篇
  1994年   5篇
  1993年   6篇
  1992年   4篇
  1991年   2篇
  1990年   1篇
  1989年   2篇
  1988年   2篇
  1987年   3篇
  1986年   3篇
  1985年   5篇
  1984年   4篇
  1983年   5篇
  1982年   4篇
  1980年   1篇
  1978年   1篇
  1974年   2篇
排序方式: 共有1074条查询结果,搜索用时 31 毫秒
991.
Abstract

The merits of being multi-lingual are widely recognised. This paper considers the application of this metaphor to the conceptualisation of clinical work in a women’s prison. We suggest that sharing ‘languages’ from different theoretical orientations in open fora enables teams to build deep and nuanced understandings of clinical and systemic complexity, of particular value in secure settings. This discussion reflects the service model developed and used within HMP/YOI Holloway, a large women’s prison in London, which has recently been closed. We utilise a case example, with formulations and recommendations from several perspectives, to illustrate the value of maintaining a rich, inclusive discourse. We describe the benefits of such an approach to staff teams, to institutions and to those we serve, and consider the implications for organisation of services to maximise potential for change and recovery.  相似文献   
992.
While it is recognized that veterans have increased rates of depression, post‐traumatic stress disorder (PTSD), suicide, and substance use disorders, rates of homicide and unintentional injury deaths in veterans have been minimally investigated. We evaluated all non‐natural deaths in New Mexico veterans between 2002 and 2011 in comparison with non‐natural deaths among non‐veterans. We reviewed all decedents in New Mexico with a history of military service and investigated by the medical examiner, excluding natural deaths and deaths due to fall from standing height. The most common manner of death was unintentional injury (62%), most of these deaths due to motor vehicle accidents (29%) followed by unintentional overdose (26%). Suicide rates among veterans were consistently higher than the general population. The most common mechanism of suicide in men was gunshot wound (72%), and intentional overdose in women (49%). Services are needed for veterans that are tailored to all ages and both sexes.  相似文献   
993.
A substantial number of children and adolescents world-wide abuse volatile substances with the intention to experience an euphoric state of consciousness. Although the ratio of deaths to nonfatal inhalation escapades is low, it is an important and preventable cause of death in young people. In the analytical investigation of volatile substances proper sample collection, storage and handling are important in view of the volatile nature of the compounds. Volatile organic compounds in post-mortem matrices such as blood, urine and tissues are generally determined by gas chromatography after extracting the compounds with methods such as static and dynamic headspace or even with pulse-heating and solvent extraction. In post-mortem cases, metabolites in urine seem less relevant, however, trichloroethanol and trichloroacetic acid were determined in several cases. When interpreting qualitative and quantitative results, researchers should be aware of false conclusions. The main reason why scepticism is necessary is the occurrence of losses of analytes during sampling, sample handling and storage, which results in false quantitation.  相似文献   
994.
995.
996.
Pairs of sisters in 50 families in which at least one parent was aged 75+ were asked in open-ended questions to describe the division of filial responsibility in their families and their feelings about it. The relationship between the quality of ties among siblings and evaluations of the fairness of the division of responsibility is explored. The argument is made that rules of distributive justice are invoked largely within the context of the projected futures of existing relationships.  相似文献   
997.
998.
999.
1000.
There is currently no accurate method to identify vaginal epithelial cells uniquely. This study aimed to use a cell extraction procedure compatible with routine forensic sampling methods, and to investigate the expression of cytokeratin (CK), estrogen receptor-alpha (ERalpha), and phosphodiesterase 5 (PDE5) in order to distinguish between skin, buccal, vaginal, and external penile epithelial cells. Seminal fluid samples were also examined. Epithelial cell samples were fixed in formalin, embedded in agarose, and processed using histological methods. Antigen-antibody reactions were detected using the DAKO Envision+ detection system. CK was present in all cells from all five sources confirming the origin of cells as epithelial. Both ERalpha and PDE5 positively labeled vaginal, buccal, and skin epithelial cells. Although an antigen unique to vaginal epithelial cells was not identified, we have described a cell extraction procedure for use in the immunohistochemical detection of a wide range of antigens, an approach compatible with forensic diagnostics.  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