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   37059篇
  免费   1337篇
  国内免费   18篇
  38414篇
  2020年   441篇
  2019年   488篇
  2018年   617篇
  2017年   637篇
  2016年   735篇
  2015年   532篇
  2014年   644篇
  2013年   3069篇
  2012年   1158篇
  2011年   1162篇
  2010年   794篇
  2009年   813篇
  2008年   1145篇
  2007年   1061篇
  2006年   964篇
  2005年   885篇
  2004年   883篇
  2003年   851篇
  2002年   858篇
  2001年   849篇
  2000年   864篇
  1999年   639篇
  1998年   421篇
  1997年   375篇
  1992年   576篇
  1991年   554篇
  1990年   562篇
  1989年   555篇
  1988年   514篇
  1987年   523篇
  1986年   529篇
  1985年   576篇
  1984年   517篇
  1983年   461篇
  1982年   371篇
  1981年   416篇
  1979年   536篇
  1978年   419篇
  1977年   369篇
  1976年   363篇
  1975年   468篇
  1974年   530篇
  1973年   538篇
  1972年   441篇
  1971年   438篇
  1970年   391篇
  1969年   414篇
  1968年   508篇
  1967年   486篇
  1966年   455篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
261.
The role of women in the People's Republic of China has changed dramatically in the last 40 years. This study assesses what impact these changes have had on the attitudes of Chinese youth. The sample consisted of 164 subjects (77 men and 87 women) who completed the Bem Sex Role Inventory, the Objective Fear of Success Measure, a locus of control scale, and a personal goals questionnaire. They also evaluated a painting attributed to artists of different gender and status. The results indicate that the sex role orientations of Chinese students were similar to those of American students. On the Bem inventory, the direction of the sex differences on the sex role scales was the same for U.S. and Chinese students, but the latter had a sex role orientation that, in our culture, is regarded as more “traditional.” Chinese women were significantly more likely to endorse statements expressing fear of success than were Chinese men. On the locus of control measures, Chinese women were more likely than men to attribute their achievement successes to luck and failures to a lack of ability. The women students also attributed affiliation outcomes more to luck than did the men. The most important personal goal cited by both men and women was that of career success. Chinese men placed greater importance than women on achieving wealth, and their expectancy of actually becoming wealthy was higher. Finally, in an evaluation of a painting, Chinese men, but not the women, devalued a painting when it was supposedly the work of a female student artist.  相似文献   
262.
工作负载的测量和评定   总被引:1,自引:0,他引:1  
长期处于应激状态而又适应不良者可导致疾病。人类经常遇到的心理、社会性应激源除了生活事件以外,长期工作负载过重也是其中之一。本文通过对24名在监护病房工作的护士的工作负载的测量介绍了在西方国家常用的工作负载的测量和评定方法。  相似文献   
263.
264.
Emerson (1988) provided a simple C-language timing routine for use with PC AT class machines. Unfortunately, this version of the timing routine makes use of nonstandard functions that are not available in all C-language packages. A modified version of this timing routine that does not make use of one of these nonstandard functions is provided. This version of TIMEX runs under the widely available Microsoft C 5.1. The need and availability of the remaining four nonstandard C functions is discussed. Constants needed to convert the timing routine units into seconds and milliseconds are also provided.  相似文献   
265.
In this study, we describe the process of transforming neuron polarization values that meet the assumptions of ratio data into ordinal data. This is a crisp-to-fuzzy set transformation. A computerized simulation of the application of this process is discussed and nonparametric methods of analyzing fuzzy-set data are presented.  相似文献   
266.
267.
268.
This study focused on the relations between performance on a three-choice probability-learning task and conceptions of probability as outlined by Piaget concerning mixture, normal distribution, random selection, odds estimation, and permutations. The probability-learning task and four Piagetian tasks were administered randomly to 100 male and 100 female, middle SES, average IQ children in three age groups (5 to 6, 8 to 9, and 11 to 12 years old) from different schools. Half the children were from Middle Eastern backgrounds, and half were from European or American backgrounds. As predicted, developmental level of probability thinking was related to performance on the probability-learning task. The more advanced the child's probability thinking, the higher his or her level of maximization and hypothesis formulation and testing and the lower his or her level of systematically patterned responses. The results suggest that the probability-learning and Piagetian tasks assess similar cognitive skills and that performance on the probability-learning task reflects a variety of probability concepts.  相似文献   
269.
Secondary revision is a highly provocative concept arising out of Freud's attempts to explain the construction of dreams, but it remains relatively ill-defined. It includes three related, yet by no means identical aspects of the process by which the dream acquires its more or less final form during the experiencing, the remembering, and the telling. It represents one of the most interesting hypotheses dealing with the fluid world between sleeping and waking, a field which still presents us with a host of unanswered questions. Secondary revision not only reflects the higher levels of the dreamer's mental functioning superimposed on his biological substructure, but it also operates as a sensitive indicator of the cultural factors which have helped mold his personality. These factors include both the subculture of the analytic situation and the impact of society in the larger sense. I make reference to individual dreamers in analysis and to the world of dreams recorded in the past from our own and other cultures.  相似文献   
270.
Using neutral stimuli (mushrooms and flowers) and phobia-relevant stimuli (snakes and spiders), the present investigation examined the effect of gaze shifts on subjective evaluation of stimuli in female subjects (N = 29). One group of subjects had to orient to the right, whereas the other group had to orient to the left in order to see the stimuli. When left-handed subjects were excluded from the analysis, the results showed that subjects in the 'orient right' group gave a significantly more positive evaluation than subjects in the 'orient left' group. The results provide a replication of the phenomenon described by Drake (1987).  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