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   185篇
  免费   9篇
各国政治   13篇
工人农民   5篇
世界政治   11篇
外交国际关系   10篇
法律   95篇
政治理论   59篇
综合类   1篇
  2022年   1篇
  2021年   2篇
  2020年   5篇
  2019年   3篇
  2018年   8篇
  2017年   7篇
  2016年   2篇
  2015年   2篇
  2014年   2篇
  2013年   25篇
  2012年   4篇
  2011年   7篇
  2010年   7篇
  2009年   3篇
  2008年   6篇
  2007年   5篇
  2006年   5篇
  2005年   5篇
  2004年   7篇
  2003年   4篇
  2002年   9篇
  2000年   2篇
  1999年   2篇
  1996年   1篇
  1995年   2篇
  1994年   4篇
  1993年   1篇
  1992年   3篇
  1991年   1篇
  1989年   3篇
  1988年   5篇
  1987年   2篇
  1986年   1篇
  1985年   4篇
  1983年   3篇
  1982年   7篇
  1981年   2篇
  1980年   3篇
  1979年   1篇
  1978年   3篇
  1977年   6篇
  1976年   2篇
  1975年   1篇
  1974年   3篇
  1973年   4篇
  1972年   2篇
  1970年   2篇
  1969年   2篇
  1968年   2篇
  1966年   1篇
排序方式: 共有194条查询结果,搜索用时 62 毫秒
61.
62.
We obtained preferences from 227 college students about the characteristics of their ideal love objects. We factor analyzed these separately for males and females and obtained both common and sex-specific factors. We then examined the relative contributions of a set of structural and family factors to the explanation of variance in each of the characteristics of the ideal love object. Results show that about one-third of the 58 characteristics have significant, though not high, amounts of variance explained by the predictors. The most important predictors were sex, religion, mother's marital happiness, and father's education.Received Ph.D. from New York University, 1963. Major research interest: emotions, love relationships, socialization, sociological theory.Received Ph.D. from City University of New York, 1976. Major research interests: sociological theory, sex roles, sociology of leisure, sociology of health.  相似文献   
63.
64.
65.
66.
67.
68.
Echinococcosis is an endemic disease, most common in sheep-raising communities, usually caused by the larval or cyst stage of the tapeworm Echinococcus granulosus. Isolated cardiac hydatid cyst is uncommon at any age, occurs through the coronary circulation, and accounts for less than 3% of all hydatid disease. We describe a case of an 1%-year-old female, who died suddenly. The post-mortem examination revealed an isolated cyst in the left ventricle of the heart with intact wall. The cytologic examination of the cyst fluid demonstrated the presence of the characteristic scolices and hooklets and established the diagnosis of cardiac hydatid cyst. The present case is of special interest because of the rare primary localization and the onset of sudden death in a young person as the initial manifestation of the disease.  相似文献   
69.
In this contribution are presented the fermentations of the main substrates present in a decaying corpse, namely carbohydrates, amino acids, glycerol and fatty acids, generating the post-mortem volatile compounds that could be detected along with ethanol during the forensic ethanol analysis. The available literature (preferably reviews) on microbial metabolic pathways (enzymes, substrates, conditions) that are implicated in the formation of these volatiles has been reviewed. The microbial formation of the following volatiles is supported by the presented biochemical data: ethanol, acetaldehyde, acetone, 2-propanol, 1-propanol, 1-butanol, isobutanol, isoamyl alcohol, d-amyl alcohol, acetate, propionate, butyrate, isobutyrate and ethyl esters (mainly ethyl acetate). The extracted information was correlated with the existing forensic literature on the post-mortem detected volatiles. The significance of the microbial produced volatiles on the selection of an appropriate internal standard for the ethanol analysis has been considered. Finally, the possible contribution of the presence of volatiles in the interpretation of ethanol analysis results in post-mortem cases is discussed.  相似文献   
70.
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