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   22221篇
  免费   865篇
  国内免费   11篇
  23097篇
  2019年   261篇
  2018年   374篇
  2017年   399篇
  2016年   426篇
  2015年   324篇
  2014年   354篇
  2013年   1775篇
  2012年   639篇
  2011年   654篇
  2010年   395篇
  2009年   370篇
  2008年   504篇
  2007年   558篇
  2006年   475篇
  2005年   452篇
  2004年   425篇
  2003年   421篇
  2002年   452篇
  2001年   749篇
  2000年   714篇
  1999年   544篇
  1998年   221篇
  1996年   222篇
  1995年   202篇
  1992年   458篇
  1991年   445篇
  1990年   434篇
  1989年   406篇
  1988年   431篇
  1987年   383篇
  1986年   393篇
  1985年   393篇
  1984年   316篇
  1983年   281篇
  1982年   211篇
  1981年   209篇
  1979年   357篇
  1978年   261篇
  1977年   220篇
  1976年   206篇
  1975年   285篇
  1974年   359篇
  1973年   376篇
  1972年   292篇
  1971年   283篇
  1970年   287篇
  1969年   255篇
  1968年   354篇
  1967年   315篇
  1966年   288篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
241.
Insulin-dependent diabetic children and a group of their nondiabetic peers were compared on measures of self-concept, locus of control and health locus of control. A metabolic measure of long term diabetes control was also obtained on the children with diabetes. Data analyses revealed that metabolic control was not related to any of the personality measures in the diabetic sample. Diabetic and non-diabetic children did not differ on measures of locus of control and self-concept, but diabetics exhibited a health locus of control which was significantly more internal than that of control subjects. A possible explanation for these results was discussed and practical implications for health care providers working with young diabetics were presented.  相似文献   
242.
The residual effects of severe closed head injury on psychological functioning, as determined by data from the Rorschach test, were examined. Thirty-five young adult patients with severe closed head injury were compared to a nonpatient, non-head injured matched group sample of 36 subjects. The utility of the Rorschach test in distinguishing the characteristic psychological functioning of inpatients who have suffered from severe closed head injury was outlined. The apperceptive disturbance, affective/cognitive problems, and interpersonal difficulties were discussed.  相似文献   
243.
244.
Tympanic thermometers were used to measure fluctuations in the temperature of the left and right hemispheres of 22 normal high school students while performing verbal and nonverbal visual discrimination tasks. The nonverbal task involving face recognition demonstrated the predicted effect of hemispheric bias on performance: The subjects performed better when they showed a relative rise in right-hemisphere temperature. No significant relationship between hemispheric temperature and level of performance was observed during the verbal task, perhaps owing to the opportunity to treat effectively the nonwords as either linguistic strings or visual patterns. It is concluded that tympanic temperature effectively measures hemispheric activity during cognitive processing.  相似文献   
245.
246.
247.
This project studied the effects of weather variables and size of the population on minor and major violence rates within six prisons in the Kingston, Ontario, Canada area from January, 1980 through December, 1983. While weather variables have been studied in relation to mood changes within the general population, this study was the first to analyze the impact of weather variables on rates of violence within the prison setting using forward inclusion multiple regression. Analysis showed that population size consistently appeared positively correlated with assaults on other inmates among the male medium-security prisoners during the summer months. In the summer months, temperature tended to be positively related to some minor kinds of offenses, but in the winter months the relationship was negative. Humidity, rain, sunshine hours, snow, and snow on the ground were not consistently related to incidences of minor and major violence. Indices of geomagnetic disturbances had statistically significant inverse relationships with attempted suicide/self-inflicted injury rates among the male prisoners during the summer months. Over 12 months, wind was generally negatively correlated with incidences of major and minor violence among the male inmates. For 6-mo. periods, wind was generally positively correlated with violence rates during the winter months and negatively correlated during the summer months among the male inmates. The findings relating weather variables to violence rates in the women's prison were consistently in opposition to those found for male prisoners during the 4-yr. period.  相似文献   
248.
249.
250.
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