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   4442篇
  免费   162篇
  国内免费   2篇
  4606篇
  2022年   31篇
  2021年   46篇
  2020年   69篇
  2019年   92篇
  2018年   120篇
  2017年   140篇
  2016年   128篇
  2015年   99篇
  2014年   142篇
  2013年   553篇
  2012年   223篇
  2011年   230篇
  2010年   119篇
  2009年   131篇
  2008年   166篇
  2007年   197篇
  2006年   172篇
  2005年   129篇
  2004年   147篇
  2003年   137篇
  2002年   104篇
  2001年   67篇
  2000年   61篇
  1999年   72篇
  1998年   59篇
  1997年   49篇
  1996年   37篇
  1995年   39篇
  1994年   44篇
  1993年   50篇
  1992年   43篇
  1991年   31篇
  1990年   43篇
  1989年   27篇
  1988年   38篇
  1987年   30篇
  1986年   42篇
  1985年   45篇
  1984年   48篇
  1983年   44篇
  1982年   37篇
  1981年   37篇
  1980年   42篇
  1979年   39篇
  1978年   40篇
  1977年   28篇
  1976年   40篇
  1975年   41篇
  1974年   40篇
  1973年   31篇
排序方式: 共有4606条查询结果,搜索用时 15 毫秒
951.
Gloria Cowan 《Sex roles》1984,11(1-2):17-23
If a double standard of aging exists, the relationship in which the female is older should be seen more negatively than the more traditional male-older relationship. This study examined the effects of both degree of age discrepancy and sex of the older person on attributions of success for relationships in both adult and adolescent samples. Both samples rated the highly discrepant female-older relationship (18 years difference) least probable of success. Level of discrepancy and sex of older person were significant factors for both groups. Surprisingly, both adult and adolescent males, in contrast to females, did not show the double standard in evaluating moderately discrepant relationship (7 years).  相似文献   
952.
Research in small-group decision making suggests two means by which discussion shifts the responses of individual members—Nonmative influence and informational influence. The former is based on pressure to conform to the normative positions of group members, and the latter involves changes due to the informational content of persuasively or passively shared facts. Which influence mode is used depends on the group decision rule, whether the response is public or private, the perceived nature of the task, and the nature of the issue. Specifically, normative influence is likely to prevail in public judgments, under group cohesion sets, and with value-laden issues, while informational influence will emerge when responses are private, the group is oriented toward the immediate task, and the issue is intellective. Suggestions are made regarding strategy and tactics for anticipating, harnessing, and shaping the form of influence that will take place during deliberation.  相似文献   
953.
Martin Bunzl 《Erkenntnis》1984,21(1):31-44
Recent attempts to fix the direction of causal priority without reference to the direction of temporal priority have begun with an analysis of the causal relation itself. I offer a method, based on causal modelling theory, designed to determine the direction of causal priority while remaining as agnostic as possible about the nature of the causal relation.  相似文献   
954.
Causal factuals     
Martin Bunzl 《Erkenntnis》1984,21(3):367-384
  相似文献   
955.
EMDISP provides general-purpose assembly language routines that can be called from higher level languages to produce specific application programs for experiments involving visual displays, manual responses, and analogue sampling (e.g., eye movement recording). The display system assumes the use of fast-phosphor oscilloscopes driven by 12-bit digital-to-analogue converters (DACs) to produce point-by-point displays. Within these limitations, EMDISP offers a flexible and efficient method of generating displays, in which elements of a complex display are defined as separate “pictures” and are controlled independently. High-level control of digital and analogue sampling are provided, enabling interactions between the contents of the display and analogue and digital inputs.  相似文献   
956.
Studies which have examined low tar and nicotine (LT/LN) cigarette smoking have failed, for the most part, to assess adequately the long-term effects of these cigarettes. Most studies have been short-term laboratory investigations of nicotine regulation. More practical strategies for changing to LT/LN cigarettes have largely been ignored. The present study examined long-term changes in smoking patterns following the gradual introduction of LT/LN cigarette smoking. Predicted increases in reported rates of consumption as well as carbon monoxide (CO) levels were not found for most smokers following changes to LT/LN cigarettes. Generally, smokers showed decreased rates of consumption, and a majority had lower CO levels at the end of treatment and during follow-up. Thus, LT/LN cigarette smoking would appear to be an alternative treatment goal for risk reduction in individuals who cannot stop smoking.  相似文献   
957.
Rapid smoking (RS) and a less aversive rapid-puffing (RP) treatment were compared on ability to enhance the impact of a behavioral-counseling (BC) procedure on psychophysiological, attitudinal and behavioral response to cigarettes. Data reveal that both aversive smoking treatments resulted in less smoking once treatment began, reduced smoking in post-treatment taste tests, and superior follow-up performance at 6 months and 1 yr. At 1 yr, RS S s achieved the highest number of days abstinent of any group. Regression analyses showed that Ss' confidence ratings of remaining abstinent were highly predictive of follow-up status, and that these ratings were related to number of cigarettes smoked during treatment and amount of smoking during post-treatment taste tests.  相似文献   
958.
This paper examines a representative case of histrionic (the term hysterical is used interchangably) personality from a psychological and theological perspective. A working hypothesis is presented, based on Genesis 1–3, that is both clinical and theological. It is hypothesized that individuals who manifest histrionic features relate to each other as Strong Man/Dependent Woman and/or Strong Woman/Passive Man. Both ways of relating are usually present in the same relationship. In relating to one another in these ways, they are searching for a human god or goddess. In turn, they think and act as if they too were a god or goddess. They have not discovered another way of relating; that is, as male and female created in the image of God. A clinical case study is presented and the course of treatment described. Since the histrionic personality is multidimensional, so must be the treatment.  相似文献   
959.
Computer tomography (CT) is an important aid to the diagnosis of sella tumours because it images the tumour directly and delineates it from the healthy tissues. The tumour type can be identified to a certain extent, but angiography is necessary to distinguish tumours from aneurysms. The study is based on 140 surgical and histological examinations, the results of which were compared wit those obtained by CT. Suprasellar inflammations could always be identified by CT. Although intrasellar tumours may be identifiable by CT if full use is made of the potential of the equipment, negative CT results do not necessarily mean that there is no tumour. The diagnostic validity of the method is restricted by the absence of "standards", against which the variable images of intrasellar structures can be judged, and the restricted resolution of CT.  相似文献   
960.
An experiment is reported in which subjects pointed to a visual target before and after exposure to prisms. The exposure condition required the subject to look at his feet through leftward deviating prisms while holding his eyes to the right. Aftereffects on pointing were significantly to the right. This result is opposite to that predicted by the muscle potentiation hypothesis put forward by Ebenholtz and Wolfson (1975), but consistent with recalibration of the visual direction system caused by spatial discordance.  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