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   1526篇
  免费   43篇
  国内免费   24篇
管理学   57篇
民族学   6篇
人口学   32篇
丛书文集   70篇
理论方法论   144篇
综合类   771篇
社会学   358篇
统计学   155篇
  2024年   1篇
  2023年   16篇
  2022年   8篇
  2021年   15篇
  2020年   30篇
  2019年   30篇
  2018年   40篇
  2017年   50篇
  2016年   42篇
  2015年   31篇
  2014年   76篇
  2013年   276篇
  2012年   83篇
  2011年   53篇
  2010年   43篇
  2009年   65篇
  2008年   66篇
  2007年   76篇
  2006年   82篇
  2005年   70篇
  2004年   64篇
  2003年   54篇
  2002年   56篇
  2001年   71篇
  2000年   34篇
  1999年   25篇
  1998年   23篇
  1997年   16篇
  1996年   25篇
  1995年   23篇
  1994年   14篇
  1993年   6篇
  1992年   8篇
  1991年   4篇
  1990年   5篇
  1989年   6篇
  1988年   2篇
  1987年   2篇
  1985年   1篇
  1977年   1篇
排序方式: 共有1593条查询结果,搜索用时 15 毫秒
71.
用固体的Einstein模型与Debye模型分别导出相应模型的固气相变的蒸发热和蒸发压公式,并对其做数值计算。结果表明,蒸发热与温度之间近似呈线性关系,之与工程上经验近似是一致的。  相似文献   
72.
Abstract

This paper demonstrates how use of the empathic mode in outpatient psychotherapy helped an alcoholic patient reduce his denial of the severity of his illness. Both the general psychoanalytic literature and, in particular, the self psychology literature concerning treatment of alcoholics is reviewed and evaluated. This paper also examines in depth how the empathic mode functions to promote selfobject transferences, which facilitate internalization processes that may lead to a reduction in the alcoholic patient's need to rigidly maintain his denial of the illness. The complexity of the relationship between alcoholism self-help groups and the professional psychotherapy community is also explored.  相似文献   
73.
ABSTRACT

There has been a historic neglect of both research and practice in the area of counselling for the family members of alcohol or other drug abusers by the addiction field in Canada. As a result, treatment for individual family members affected by alcoholism and other drug addiction remains a neglected component of the majority of Canadian addiction programs. When family involvement is incorporated, the tendency has been to concentrate on orientation and education rather than on the provision of counseling for the family members. This dearth of programming exists despite the knowledge that an active alcohol or drug abuser's behaviour disrupts the entire family system, including the functioning and development of children. Each family member is uniquely affected with negative outcomes ranging from economic hardship to violence being perpetrated against them to an increased risk among children of becoming alcohol or drug abusers themselves. Thus, treating only the active alcohol or other drug abuser is limiting and an overly narrow orientation for the enhancement of both family and community health.  相似文献   
74.
文章分析了当前中国外商投资法律制度的建立、现状以及未来的发展方向 ,同时分析了反垄断法在外商投资法律制度中的意义 ,指出尽快制定反垄断法的现实意义 ,并结合中国当前实际情况 ,提出加强中国企业竞争力是防止外资垄断的重要途径  相似文献   
75.
在分析国外有关文献的基础上,对HFC-134a水平管内流动沸腾换热研究的现状和已取得的成果进行了综述,指出了该领域进一步研究的方向.  相似文献   
76.
Drug addict rehabilitation programs receive a small proportion of the funds made available through the social welfare system. Emphasis has traditionally been placed on the pathological rather than the salutogenic elements of an addicted lifestyle. A new test of a person's sense of coherence in life (Antonovsky's 9-item Sense of Coherence scale) may be of interest in rehabilitation work with drug addicts, and in focusing more attention on this aspect of addiction treatment. Thirty drug addicts in treatment and rehabilitation and 10 former drug addicts were interviewed using the 9-item Sense of Coherence scale. The results obtained were compared to a well known test of distress, the 24-item Symptom Checklist. Drug addicts in treatment facilities had significantly lower mean scores on the 9-item Sense of Coherence scale (2.3) and higher scores on the 24-item Symptom Checklist (2.3) than both drug addicts in rehabilitatively oriented institutions (3.3 and 1.6) and the long-term rehabilitated non-using former drug addicts (4.2 and 1.5 respectively). The differences between the group in rehabilitation and the former drug addicts were also statistically significant. The levels of the two psychometric tests suggested a gradual movement towards normal values and an increased sense of meaning in life among the former drug addicts, contrary to findings by other researchers. The length of time before these tests return to normal values may exceed the observation period often used in follow-up at treatment facilities. Increased social welfare may follow if a disclosure of salutogenic possibilities in drug addicts is obtained. Further prospective research is, however, necessary to confirm our findings.  相似文献   
77.
最惠国待遇条款是近代中美关系史上的一项重要条约内容。从1844年中美签订《望厦条约》起,美国即紧随英国之后在华获得了片面最惠国待遇。美国能够获得这项条款,与英国对华谈判的既定立场、清政府对美谈判所持的"一视同仁"方针、美国来华缔约谈判的既定目标,以及英美在谈判过程中的遥相呼应都有关系。而这项条款的措辞,界定了最惠国待遇极广泛的外延解释余地,并且在内容上规定了中国单方面给惠,由此才形成了中国近代史上贻害无穷的广泛的片面无条件最惠国待遇条款。  相似文献   
78.
通过系统的实验,对常温下生物质材料在秒量级脉冲加热下的导热特性进行了研究,并且针对本实验的条件分别进行了抛物线型和双曲线型两种导热模型的数值模拟,结果发现,傅里叶模型的计算结果和实验结果非常吻合,而双曲线模型的计算结果和实验结果相差很大,这说明在本实验的条件下,在所用的生物质材料中没有发现非傅里叶现象,同时也说明某些文献所述各种生物质材料的热松弛时间为秒量级的结论还有待商榷。  相似文献   
79.
对外资实行国民待遇,一般指东道国给予外资同内资同等的待遇,其内涵需要进一步明确。自1993年以来,我国有关外商投资的法律实践表明,我国已从“整平游戏场地”与“经济法和民商法的统一化”两个方面逐步对外资实行国民待遇原则。这一法律实践的重要意义首先是对在华外资待遇产生了重要影响,其次是推动了我国外资法体系的结构性调整,由相对独立的“单纯”的外资法体系转化为由专门性外资法与统一的经济法和民商法的相关规范构成的“混合法”体系。  相似文献   
80.
This article describes a method for partitioning with respect to a control for the situation in which the treatment sample sizes are unequal and also for the situation where the treatment sample sizes are equal except for a few missing values. Calculation of the critical values required for finding confidence limits is discussed and tables are presented for the “almost equal” sample size case. An application of this method to length of stay data for congestive heart failure patients is also provided.  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