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   14270篇
  免费   495篇
  国内免费   4篇
  2020年   137篇
  2019年   194篇
  2018年   266篇
  2017年   282篇
  2016年   298篇
  2015年   220篇
  2014年   277篇
  2013年   1357篇
  2012年   495篇
  2011年   478篇
  2010年   317篇
  2009年   311篇
  2008年   443篇
  2007年   441篇
  2006年   409篇
  2005年   380篇
  2004年   382篇
  2003年   341篇
  2002年   408篇
  2001年   322篇
  2000年   306篇
  1999年   272篇
  1998年   193篇
  1997年   176篇
  1996年   170篇
  1995年   177篇
  1994年   155篇
  1993年   156篇
  1992年   224篇
  1991年   218篇
  1990年   207篇
  1989年   181篇
  1988年   154篇
  1987年   164篇
  1986年   176篇
  1985年   189篇
  1984年   198篇
  1983年   202篇
  1982年   158篇
  1981年   196篇
  1980年   152篇
  1979年   215篇
  1978年   194篇
  1977年   176篇
  1976年   156篇
  1975年   169篇
  1974年   197篇
  1973年   164篇
  1972年   135篇
  1968年   152篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
151.
A technique is described in which line-drawn pictures can be rapidly interlaced, allowing for sequential part presentation or tachistoscopic presentation on the Apple II. This is accomplished using a two-stage process in which the pictorial stimuli are converted into machine code data files and then used to create a rapidly changing display consisting of two or more line drawings. The latter stage could be accomplished in less than 2 msec but is limited by the frame time of the monitor (17–20 msec).  相似文献   
152.
Normative data are presented for the probability of successfully completing 192 single-solution word fragments. Normative data on the familiarity of college students with the solution words are also given, along with estimates of word frequency from existing norms. Regression analyses were performed in order to predict fragment completion difficulty from familiarity, frequency, and several structural characteristics of the fragments. Familiarity, whether or not first and/or last letters appeared in the fragment, and the ratio of letters to missing letters in the fragment were included in the regression equation as significant predictors of difficulty for this fragment set.  相似文献   
153.
Studies of the variables that determine whether an adolescent is placed in the mental health or juvenile justice system for treatment have led to conflicting conclusions based on impressionistic data. The primary hypothesis of this study--that demographic variables would and personality/psychopathology variables would not differentiate into which system a youth will be placed--was supported. Adolescents were studied at intake into both the juvenile justice system and the mental health system. Data were collected on demographics (structured interviews), personality/psychopathology (MMPI), social adjustment (CAAP), and academic achievement (PIAT). A discriminant function analysis identified eight statistically significant variables which differentiated the two groups. In order of decreasing importance they are: ethnicity, gender, MMPI-depression, previous mental health history, CAAP-productivity, drug use, parental marital history, and parental religious preference.  相似文献   
154.
Superimposition of response-independent reinforcement   总被引:6,自引:6,他引:0       下载免费PDF全文
Studies that have superimposed response-independent reinforcement (or reinforcers scheduled by contingencies placed on the absence of responding) upon conventional response-dependent schedules are reviewed. In general, providing alternative sources of reinforcement reduced response rates below the levels observed when alternative reinforcement was absent. However, response-rate elevation was sometimes found, particularly when rates of superimposed response-independent reinforcement were low. Superimposition of schedules providing reinforcers contingent on the absence of responding usually produced more severe response-rate decrements than superimposition of response-independent reinforcement. A variant of Herrnstein's equation, which assumes that some of the alternative reinforcers function as if they were delivered by baseline response-dependent source of reinforcement, is in qualitative agreement with the overall body of results obtained, and can predict both increases and decreases in response rate as resulting from superimposed reinforcers.  相似文献   
155.
156.
One of the most necessarily sensitive areas of pastoral care is dealing with perinatal death. This case study grows from a need for care providers to understand better the feelings of a mother in the loss of her baby. This particular exploration evolved from a taped interview with the writer's aunt (now in her seventies) and her dealings with the multiple losses she experienced over fifty years ago. Her conversation in the interview gives credibility to many coping skills that we endeavor to teach today and that she developed for herself out of a need to survive....it was as if the birds would never sing again.-Aunt Grace  相似文献   
157.
This paper attempts to: (1) provide a paradigm through which to understand the human self and, (2) bring some order out of the variety of theories of personality and strategies of change used in clinical practice today. Drawing on modern physics and general systems theory, a multi-leveled, systemic model incorporating physical, psychological, and spiritual dimensions is proposed and then applied to a representative clinical case. Implications of this model for clinical work and for a spiritual understanding of personality are elaborated.  相似文献   
158.
86 stutterers' disfluency patterns were examined in relation to their laterality preferences. Results suggest that young stutterers are a heterogeneous group and that specific disfluency variables were not related to ear preferences on a dichotic consonant-vowel listening task.  相似文献   
159.
This paper has attempted to discover if the two analyses of Mr. Z by Kohut do in fact substantiate the clinical efficacy of his theoretical model. A brief overview was presented, as were critical assessments. The major point was developed, that a creative working-through of a complementary countertransference was largely responsible for the success of a second analysis after a first phase was seriously undercut by interfering material which rigidified the therapist's interpretation. It was concluded by noting how Kohut's need to overcome the countertransference played a vital role in catalyzing the evolution of his new theory.  相似文献   
160.
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