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   9062篇
  免费   1542篇
  国内免费   5篇
  2021年   102篇
  2020年   118篇
  2019年   427篇
  2018年   373篇
  2017年   463篇
  2016年   445篇
  2015年   398篇
  2014年   365篇
  2013年   938篇
  2012年   428篇
  2011年   344篇
  2010年   315篇
  2009年   305篇
  2008年   321篇
  2007年   261篇
  2006年   227篇
  2005年   233篇
  2004年   206篇
  2003年   192篇
  2002年   215篇
  2001年   292篇
  2000年   271篇
  1999年   174篇
  1998年   61篇
  1997年   57篇
  1996年   62篇
  1992年   122篇
  1991年   124篇
  1990年   119篇
  1989年   99篇
  1988年   90篇
  1987年   98篇
  1986年   110篇
  1985年   106篇
  1984年   96篇
  1983年   82篇
  1979年   96篇
  1978年   70篇
  1977年   62篇
  1975年   67篇
  1974年   93篇
  1973年   100篇
  1972年   72篇
  1971年   69篇
  1970年   78篇
  1969年   75篇
  1968年   104篇
  1967年   81篇
  1966年   91篇
  1958年   62篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
61.
62.
This study investigated ways in which predictions from interference theory might explain partial or total failure in the morning recall of mental sleep experience (MSE) episodes reported after provoked night awakening. Interference could take place either between the contents of one MSE episode (intraserial interference) or between the contents of different MSE episodes (interserial interference) and would be more likely to affect morning recall where similar (i.e., interrelated) contents in MSEs are involved. If interference were mainly intraserial, in the morning there would be no change in the difficulty of retrieving interrelated contents, whereas, if it were mainly interserial, there would be increased difficulty in the retrieval of such contents. All the possible pairs of reports obtained by awakening 8 subjects four times in REM sleep during each of four experimental nights spaced at weekly intervals were scored for interrelated contents, using Clark's (1970) system of analysis of paired units, which operates by matching linguistic features. Results showed that interrelations in morning report pairs are as frequent as in night report pairs, maintaining the same linguistic characteristics and with little transfer of contents from one MSE to another. Overall these findings are compatible with the hypothesis that interference is primarily intraserial rather than interserial. It is consequently suggested that morning recall failure may be due to temporary blocking of retrieval.  相似文献   
63.
Can we imagine how objects look from other viewpoints?   总被引:2,自引:0,他引:2  
Many psychologists who study cognition believe that perception achieves object-centered representations that make it possible to extract representations of how the object would appear from differing viewpoints. Others believe we can achieve representations of how an object would appear by a process of visualization or mental rotation. We report experiments in which the subject tries to imagine how three-dimensional novel wire objects would appear from positions other than the one they are in. Subjects are unable to perform this task unless they make use of strategies that circumvent the process of visualization. It is suggested that the linear increase in time required to succeed in mental rotation tasks as a function of the angular discrepancy between the figures compared is the result of increasing difficulty rather than of the time required for rotation.  相似文献   
64.
Family functioning of 20 alcoholic male veterans and their female partners was assessed in relation to drinking (wet) and abstinent (dry) intervals. Repeated measures analyses performed on the McMaster Family Assessment Device (FAD) indicated that on all 7 scales of the FAD, alcoholics and their mates perceived family functioning to be better during dry than wet periods. In contrast to their alcoholic mates, female partners gave healthier ratings to all FAD scales except Roles in the dry condition and Affective Involvement in the wet condition. According to published cutoff scores for healthy and unhealthy family functioning, alcoholics as a group viewed their wet and dry family functioning as unhealthy, although the female group regarded the family's dry Problem Solving and Behavioral Control as healthy. These findings suggest that the family functioning of alcohol-involved couples is biphasic, oscillating between drinking and abstinent periods.  相似文献   
65.
Enuresis was investigated in the context of different styles of training for bladder control among three Israeli ethnic groups (Jews of Moroccan, Kurdish or Eastern European descent). Semistructured interviews were conducted in ethnically homogeneous agricultural villages with 46 mothers of 248 children between the ages of 3 and 18 years. In contrast to previous British and American studies, no sex differences were found, but there were higher rates of primary enuresis and lower rates of secondary (regressive) enuresis. Enuresis was correlated among siblings in the Kurdish group only and with disorderly sleeping arrangements in the Moroccan group. The Moroccan and Kurdish groups had higher rates of enuresis than the Ashkenazi group. The higher rates appear to be related to differences in the age of onset of training and a lack of age-appropriate changes in the parent-child interaction, which led to chronic enuresis and the inability to seek effective assistance. These results are discussed in terms of a proposed typology for training: an early symbiotic style, a strict toddler style, and a communicative partnership.  相似文献   
66.
It has generally been assumed that increases in the concrete outcomes of a procedure will result in judgments of greater procedural and distributive fairness, but research on this topic has been inconsistent. Using a classic procedural justice paradigm (Walker, LaTour, Lind, &. Thibaut, 1974), the experiment tested the effects of four levels of outcome. Forty-eight male and female undergraduates were led to believe that their team had been wrongfully charged with cheating in a business simulation game. An adversary adjudication was held, purportedly to resolve the charge. The outcome of the adjudication was confiscation of all, two thirds, one third, or none of the subject's monetary winnings from the game. Both procedural and distributive fairness measures showed dear nonlinear outcome effects. The relationship between outcomes and both fairness measures showed some evidence of being nonmonotonic as well: A two-thirds loss resulted in less favorable reactions than did a total loss. Ratings on other scales suggest that the nonlinear effects are due to beliefs that the judge did not fully consider the evidence in the two-thirds loss and one-third loss conditions. The discussion focuses on the theoretical implications of the findings for procedural justice and social exchange processes and the practical implications for conflict resolution procedure.  相似文献   
67.
This paper demonstrates a method of transferring research data from a remote clinic to a large university mainframe for data manipulation and statistical analysis. Data collected by an Apple //e computer were transferred to an IBM 3031 mainframe by sending data files to an IBM PC by telephone modem or by direct hardwire connection to the PC. The IMB PC performed data-formatting routines and then uploaded the files to the mainframe for storage. Advantages and disadvantages of sending data over telephone lines via a modem are discussed.  相似文献   
68.
Single-subject statistics were used to analyze physiological data [electromyographic (EMG) temperature] recorded from two patients receiving computer-assisted biofeedback treatment in a clinic. When the data were analyzed by an ANOVA method or a regression technique, the results demonstrated that both patients learned to significantly reduce EMG levels. The rationale of using single-subject statistics is discussed, and the applicability of the statistical technique to the clinic population is illustrated.  相似文献   
69.
70.
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