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   2525篇
  免费   90篇
  国内免费   1篇
  2019年   27篇
  2018年   25篇
  2017年   29篇
  2016年   43篇
  2015年   27篇
  2014年   30篇
  2013年   260篇
  2012年   72篇
  2011年   71篇
  2010年   52篇
  2009年   66篇
  2008年   65篇
  2007年   76篇
  2006年   63篇
  2005年   59篇
  2004年   75篇
  2003年   68篇
  2002年   80篇
  2001年   34篇
  2000年   42篇
  1999年   32篇
  1998年   42篇
  1997年   36篇
  1996年   32篇
  1995年   39篇
  1994年   37篇
  1993年   28篇
  1992年   36篇
  1991年   29篇
  1990年   36篇
  1989年   38篇
  1988年   30篇
  1987年   28篇
  1986年   32篇
  1985年   31篇
  1984年   41篇
  1983年   41篇
  1982年   36篇
  1981年   55篇
  1980年   42篇
  1979年   52篇
  1978年   40篇
  1977年   39篇
  1976年   47篇
  1975年   52篇
  1974年   51篇
  1973年   44篇
  1971年   36篇
  1969年   37篇
  1968年   34篇
排序方式: 共有2616条查询结果,搜索用时 15 毫秒
131.
It is postulated that adult vocational maturity needs to be assessed because of the changing developmental tasks encountered during the course of a career. Vocational maturity having been found to be multidimensional, existing undimensional inventories of adult vocational maturity are considered of limited although demonstrated validity. Relevant theories of adult vocational development and adjustment are reviewed. Super's proposed adult vocational maturity model is examined for the promise that it offers and for the problems that arise in developing a multidimensional measure of vocational maturity. A way of surmounting these problems is proposed as a basis for work now being undertaken.  相似文献   
132.
Recent research has shown that academic choice and achievement may be partly a function of the student's standing on the field-dependence-independence cognitive-style dimension. The results of two longitudinal studies suggest that information about field dependence-independence may be of value for student guidance in the medical setting. The first, a study of college undergraduates who early expressed an interest in medicine, showed that these cognitive styles play a discernible role in determining who will eventually enter medical school. The second, a study of medical students, showed that field-dependent and field-independent students subsequently tend to choose different medical specialties. These results are consistent with cognitive-style theory, which proposes that field-independent people will choose vocations that require cognitive restructuring skills, whereas field-dependent people will choose vocations that require greater social-interpersonal involvement.  相似文献   
133.
Eight adult women volunteers viewed the same erotic film in two different sessions. Their resulting genital responses were recorded simultaneously by three different measures: vaginal pressure pulse, vaginal blood volume, and labial temperature change. During the erotic stimulation, the vaginal pressure pulse and labial responses always increased, and the vaginal blood volume response increased on all but two occasions. Although there was considerable intersubject variability in each genital measure, all three measures were found to have some intrasubject consistency over sessions with respect to either their response amplitudes or patterns, with labial temperature being the most consistent on both parameters. The relationship between the response patterns of the three measures during the film was also relatively consistent across sessions, as was the correspondence between subjective ratings of arousal and both vaginal pressure pulse and labial responses but not vaginal blood volume response. To overcome the problem of considerable intrasubject variability of response amplitudes, it was suggested that the inclusion in the data analysis of several parameters of response patterns, which were relatively stable over sessions, might facilitate the evaluation of a treatment.  相似文献   
134.
135.
Subjective sexual arousal and affective reactions of 80 college women to explicit sex films were studied in a 2 (sex guilt) × 2 (trait anxiety) × 2 (films) design. There was a decline in sexual arousal to a film of oral-genital sex and a decline in sex guilt in the present sample in comparison to a similar sample from this laboratory 8 years ago. High-sex-guilt women reported fewer genital sensations and rated themselves lower on sexual arousal during and after the films than did their counterparts less disposed to guilt over sex. High-sex-guilt women reported more affective guilt, disgust, and anxiety-fear as a consequence of viewing an explicit sex film than women below the median on sex guilt. High-trait-anxiety women reported more intense genital sensations and rated their sexual arousal as higher following the films than low-trait-anxiety women. Women above the median on trait anxiety reported more subsequent anxiety-fear and depression-distress following the films than low-scoring women. These results were discussed from the perspective of Izard's differential emotions theory, which regards anxiety as a variable pattern of fundamental emotions rather than as a functional unity.This research was supported in part by a National Science Foundation Grant to the University of Connecticut Computer Center. The authors wish to thank Wendy Cunningham and Linda Wildes for serving as experimenters.  相似文献   
136.
137.
Head movement can have a significant effect on the ability to locate the direction of a sound source. A system has been designed to track the head movement in response to sound originating at different azimuth locations with respect to the head. A videotape record is made of a light approximating a point source carried on a lightweight “beanie” mounted on the listener’s head. Movement of the light is monitored by the video camera and recorded on tape, along with the sound stimulus and information concerning loudspeaker location and time. The horizontal and vertical coordinates of the light-spot image are determined in relation to the video synch pulses defining the field borders. Synch signals are available from a video monitor either in real-time or from tape replay to define each TV frame and horizontal scan line. The circuitry interfaces to a computer programmed to take the information, apply a calibration, and process the data into records of time-varying head position and velocity. Examples of both digital and graphic printouts of head movement are given. The system is capable of expansion to three-axis operation.  相似文献   
138.
Performance was measured in a detection task over a period of 50 min. Subjects were either non-smokers or smoked more than 15 cigarettes per day. No smoking was allowed during the task, but smokers were all asked to smoke a cigarette immediately before doing it. One hour previously, subjects had been given a double-blind dose of a substance which would shift the pH of their urine either upwards or downwards, by small amounts sufficient to affect the rate of renal excretion of nicotine in the smokers. The pH manipulation had no effect on the performance of the non-smokers, who improved steadily throughout the task. After some 40 min of performance, the deprived smokers showed less improvement than the non-smokers, and the smokers whose urine had been made acid improved less than those whose had been made alkaline. The results are interpreted as evidence for a phasic effect on performance of small degrees of nicotine deprivation, which has consequences for theories of nicotine dependence.  相似文献   
139.
Areas of stress in the ministry are compared with those in the other professions. After noting the similarities and outlining some of the unique areas of need in the ministerial profession, the author discusses some basic presuppositions about appropriate career support models. The specifics of one such judicatory support system are outlined briefly and are related to the specific needs discussed earlier. A plea is made for greater investment in pastoral care for pastors as a means of supporting effective ministry as well as of meeting the legitimate needs of the pastors.Prior to that time, he worked as a hospital chaplain-supervisor and for fourteen years was Professor of Pastoral Care and Counseling at the St. Paul School of Theology, Kansas City, Missouri.  相似文献   
140.
A qualitative model is constructed for adaptive processes and, in particular, for Piaget's theory of cognitive development. One of its main features is to describe the threshold period between stages of development. The basic approach is to isolate some general properties of Piaget's theory, and then use Thom's catastrophe theory as the major tool to obtain a geometric representation for a certain aspect of this theory.  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