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   553篇
  免费   436篇
  国内免费   23篇
  2023年   7篇
  2022年   4篇
  2021年   42篇
  2020年   11篇
  2019年   120篇
  2018年   139篇
  2017年   153篇
  2016年   90篇
  2015年   78篇
  2014年   31篇
  2013年   24篇
  2012年   23篇
  2011年   17篇
  2010年   2篇
  2009年   9篇
  2008年   9篇
  2007年   7篇
  2006年   2篇
  2005年   5篇
  2004年   3篇
  2003年   1篇
  2002年   5篇
  2001年   4篇
  2000年   5篇
  1999年   2篇
  1998年   3篇
  1997年   2篇
  1996年   2篇
  1995年   2篇
  1994年   4篇
  1991年   2篇
  1988年   1篇
  1987年   1篇
  1986年   1篇
  1985年   22篇
  1984年   26篇
  1983年   9篇
  1982年   22篇
  1981年   17篇
  1980年   29篇
  1979年   19篇
  1978年   12篇
  1977年   18篇
  1976年   11篇
  1975年   6篇
  1974年   9篇
  1973年   1篇
排序方式: 共有1012条查询结果,搜索用时 15 毫秒
861.
This paper describes an early phase in the development of new research scale for the assessment of psychopathy in criminal populations. The scale is meant to be a sort of operational definition of the procedures that go into making global ratings of psychopathy. While the interrater reliability of these ratings is very high ( > 0.85) they are difficult to make, require a considerable amount of experience, and the procedures involved are not easily communicated to other investigators. Following a series of analyses, 22 items were chosen as representative of the type of information used in making global ratings. Two investigators then used interview and case-history data to complete the 22-item checklist for 143 male prison inmates. The correlation between the two sets of total checklist scores was 0.93 and coefficient alpha was 0.88, indicating a very high degree of scale reliability. The correlation between the total checklist scores and global ratings of psychopathy was 0.83. A series of multivariate analyses explored the factorial structure of the scale and demonstrated its ability to discriminate very accurately between inmates with high and low ratings of psychopathy. Preliminary indications are that the checklist will hold up well to crossvalidation.  相似文献   
862.
863.
Localization responses to octave-band noises with center frequencies at 200, 400, 1000, 2000, 4000, and 10,000 Hz were obtained from infants 6, 12, and 18 months of age. During an experimental trial, an octave-band noise was presented on one of two speakers located 45° to each side of the infant. A head turn to the noise (correct response) was rewarded by activating an animated toy on top of the speaker. The intensity of the noise was varied over trials (method of constant stimuli) to determine thresholds at each center frequency. Thresholds for the lower frequencies were approximately 5–8 db higher in the 6-month-old infants compared to the older infants. However, there were no consistent differences among groups at the higher frequencies. Infant thresholds were found to be 20–30 db higher than adult thresholds at the lower frequencies. At the higher frequencies thresholds for infants were approaching those of adults.  相似文献   
864.
The CR elicited by an exposure to a lithium-conditioned flavor CS+ was measured in a paradigm which closely approximated traditional conditioned suppression of licking. Rats were first trained to discriminate between a lithiumpaired flavored solution (CS+) and an equally familiar, but safe, flavored solution (CSc). Then, while they consumed a differently flavored test solution, the rats were intraorally infused with either the CS+ or the CSc flavored solution. The immediate aftereffect of the CS+ exposure on consumption of the Test Solution (TS) measured the CR. The CS+ exposure suppressed the consumption of both a novel flavored TS and an unflavored water TS. The strength of the suppressive CR was influenced by the nature of the TS and by the dose of lhe lithium US.  相似文献   
865.
Recent studies have shown that children who fail Piagetian conservation tasks may succeed if the transformation of materials is made to seem accidental, or incidental to some other activity. In the present study, 46 children, mean age 6 years, were randomly assigned to either a standard or a modified testing condition. In both, the child first made a judgment as to the equality in area of two square fields, each made up from eight interlinked fence sections. Then the child saw one of the fields transformed into a rectangle, without the fences being disconnected, and was asked for a second judgment as to the equality of the fields. In the modified condition the transformation made sense in terms of creating a space for the farmhouse. Significantly higher levels of “conserving” judgments were obtained in the modified than in the standard condition. However, it should be noted that area is not in fact conserved in this case. The implications of this for the status of precociously correct conservation judgments are discussed.  相似文献   
866.
Jane Sutton 《Argumentation》1991,5(2):141-157
This essay argues that Aristotle's categories of oratory are not as useful in judging the methods of Sophistical rhetoric as his presentation of time. The Sophistical argumentative method of making the weaker the stronger case is re-evaluated as a political practice. After showing this argument's relation to power and ideology, Aristotle's philosophy, which privileges a procedure of argument consistent with the politics of a polis-ideal rhetoric, is offered as reason for objecting to Sophistical rhetoric. The essay concludes that Sophistical rhetoric prefers the concept of possibility over Aristotelian actuality, and offers a need for an ideological space of radical, generative possibility in rhetorical theory.  相似文献   
867.
Using an overview of the controversial concept of codependency as a backdrop, the paper summarizes outcomes of a project devoted to developing and applying a technique for assessing codependent relating. Results support the clinically based contention that there is a pattern of relating in dysfunctional relationships that warrants the label codependent, and that some (but not all) cases of such relating stem from a distinctive codependency personality syndrome. These results gave rise to a perspective that combines a relational process with a dispositional view of codependent relating, and proposes that codependency may be either endogenous (chronic) or exogenous (reactive).  相似文献   
868.
The author offers a personal reading of James Joyce's The Dead. She focuses on how the sounds of the language are used to portray the main character's deadness and his beginning to come to life once the barriers to inner self and self-knowledge are broken.  相似文献   
869.
Mothers posed happy, sad, or neutral still-faces (SFs) between periods of normal interactions. Lowered infant attention and affect and increased grimacing occured during SF regardless of emotional expression posed during the SF period. Different static expressions elicited differential smiling; infants smiled slightly but significantly more to happy SFs. Greater differences occured with changes in contingent aspects of interactions.  相似文献   
870.
When rats first encountered a mouse-trap or a flashbulb in a chamber to which they had been habituated, they buried it with bedding material from the floor of the chamber, whereas rats previously habituated to the trap or the flashbulb did not. Conversely, rats did not bury a stationary, wire-wrapped wooden prod or a length of polyethylene tubing, even on first encounter. However, almost every rat struck by the trap, shocked by the prod, exposed to an airblast from the tube, or to a flash of the bulb, buried the respective source of aversive stimulation with the bedding material, even when a comparable control object was present during conditioning and testing. Thus, the phenomenon of defensive burying is not restricted to situations in which neutral objects serve as the source of painful electric shock. Rats seem to enter the experimental environment with an already established tendency to bury some objects (unconditioned defensive burying) but not others, and they readily learn to selectively bury an object that has been the source of any one of a variety of aversive stimuli (conditioned defensive burying).  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