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   35416篇
  免费   1439篇
  国内免费   11篇
  2020年   343篇
  2019年   469篇
  2018年   611篇
  2017年   639篇
  2016年   654篇
  2015年   458篇
  2014年   595篇
  2013年   2723篇
  2012年   1055篇
  2011年   1131篇
  2010年   665篇
  2009年   675篇
  2008年   993篇
  2007年   979篇
  2006年   919篇
  2005年   825篇
  2004年   800篇
  2003年   746篇
  2002年   761篇
  2001年   1076篇
  2000年   987篇
  1999年   753篇
  1998年   430篇
  1997年   360篇
  1996年   340篇
  1992年   598篇
  1991年   580篇
  1990年   554篇
  1989年   560篇
  1988年   559篇
  1987年   530篇
  1986年   546篇
  1985年   592篇
  1984年   485篇
  1983年   462篇
  1982年   396篇
  1981年   373篇
  1979年   553篇
  1978年   406篇
  1976年   380篇
  1975年   461篇
  1974年   519篇
  1973年   541篇
  1972年   429篇
  1971年   400篇
  1970年   401篇
  1969年   422篇
  1968年   501篇
  1967年   430篇
  1966年   434篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
921.
Two recommendations from a recent statement of standards for counselor education are examined for underlying philosophical assumptions. The first recommendation, that counselors should possess ability for and conduct scientific research, assumes that the counseling process is lawful and orderly, that theoretical concepts can be operationally defined and that empirically testable predictions can be derived from counseling theories. A second recommendation suggests that counselors-in-training be selectively admitted and retained. Underlying this recommendation is the assumption that counseling is a process of influence that can be evaluated. Such evaluation must be based on conditions outside the counseling relationship, in the social context of the life of the client. The serious implications of these assumptions are illustrated and discussed.  相似文献   
922.
923.
924.
Old (7 months of age) and young (2 months) male rats were divided into groups matched for spontaneous exploratory activity and for age. Experimental rats in the two age categories were then traumatized by giving them a 90 volt shock to the feet for two sec. on only one occasion. It was shown that nearly all the young rats recovered from the trauma within 5 weeks, as measured by brief exploratory activity and defecation, while at the end of 6 months the old rats still had not recovered. These results point up the greater resiliency of young animals, and the need for caution in the interpreting of research and theories on early experience.  相似文献   
925.
Observers attempted to detect the presence of a pitch difference between two successive tones. The percentage of correct judgments was equivalent for tones separated by .95, 4.5, and 8.9 sec. There was a general increase in reports of a pitch difference with increased intertone interval, which is interpreted as arising from hypothesized shifts in the neural locus of the first stimulus during the intertone interval.  相似文献   
926.
927.
A method of treating reading deficits based upon an extrinsic motivational system previously employed successfully with a single subject was extended to eighteen additional subjects. The junior-high age subjects included retarded children in special classes, several emotionally disturbed children, and culturally deprived children. The method of training used in the original study was designed to be simple to administer and simple to record the performance of the child. Thus, it was hypothesized that subprofessional personnel could be employed to administer the treatment. Adult volunteers and high school seniors were used as the therapy-technicians.

The eighteen Ss were given 38.2 hr of training in daily half-hour sessions, during which period the average reinforcement earned was $22.29. The mean number of single word reading responses was 94,425. The rate of reading accelerated over the period of training even though the reading material became more difficult. This occurred during a period when progressively less (about one-fourth as much) reinforcement was given per reading response. A mean of 593.5 new words were learned and 70.9 per cent of these were retained in a long-term test. The attention, attendance, cooperation, and diligent work behavior of the various children were maintained in good strength throughout the duration of the study. The results suggest that research be conducted to develop methods for treatment of behavioral deficits that can be widely applied by subprofessional therapy-technicians supervised by clinical psychologists.  相似文献   

928.
929.
930.
COMMENT     
  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