全文获取类型
收费全文 | 956篇 |
免费 | 28篇 |
国内免费 | 1篇 |
出版年
2020年 | 7篇 |
2019年 | 10篇 |
2018年 | 15篇 |
2017年 | 18篇 |
2016年 | 14篇 |
2015年 | 15篇 |
2014年 | 16篇 |
2013年 | 126篇 |
2012年 | 27篇 |
2011年 | 31篇 |
2010年 | 19篇 |
2009年 | 33篇 |
2008年 | 27篇 |
2007年 | 29篇 |
2006年 | 23篇 |
2005年 | 22篇 |
2004年 | 14篇 |
2003年 | 20篇 |
2002年 | 19篇 |
2001年 | 35篇 |
2000年 | 15篇 |
1999年 | 16篇 |
1998年 | 17篇 |
1997年 | 16篇 |
1996年 | 35篇 |
1995年 | 18篇 |
1994年 | 14篇 |
1993年 | 15篇 |
1990年 | 6篇 |
1989年 | 8篇 |
1988年 | 6篇 |
1987年 | 11篇 |
1986年 | 10篇 |
1985年 | 7篇 |
1984年 | 10篇 |
1983年 | 10篇 |
1982年 | 9篇 |
1981年 | 18篇 |
1980年 | 12篇 |
1979年 | 16篇 |
1978年 | 15篇 |
1977年 | 22篇 |
1976年 | 22篇 |
1975年 | 23篇 |
1974年 | 12篇 |
1973年 | 37篇 |
1972年 | 8篇 |
1971年 | 13篇 |
1970年 | 6篇 |
1966年 | 5篇 |
排序方式: 共有985条查询结果,搜索用时 15 毫秒
41.
42.
43.
Tanya Grieger James M. Kauffman Russell M. Grieger Associate Professor 《Journal of School Psychology》1976,14(4):307-313
Kindergarten children were given opportunities to report to their class during “sharing time” the cooperative or friendly behaviors of their peers which had occurred during the day. Children whose cooperative behavior was reported by a peer received a happy face badge as a reward. Later, only peer praise served as a reward for those whose friendliness was mentioned by a peer. Cooperative behavior increased and aggressive acts decreased when peers reported prosocial behavior to the class. A reversal phase, in which unfriendly acts were reported, produced a decrease in cooperation and an increase in aggression. Peer reporting was a natural and inexpensive means of increasing prosocial responses of these children. Anecdotal teacher reports suggested a generalized behavioral improvement. 相似文献
44.
Colledge E Bishop DV Koeppen-Schomerus G Price TS Happé FG Eley TC Dale PS Plomin R 《Developmental psychology》2002,38(5):749-757
Normal language development was studied in 310 pairs of 4-year-old twins born in the United Kingdom in 1994. Twins were assessed individually in their homes on a diverse battery of language and nonverbal measures. Rotated factor analyses indicated the presence of a general Language factor (L) as well as a general Nonverbal (NV) factor. Moderate genetic influence was found for both L and NV abilities. Bivariate genetic analysis estimated a genetic correlation of .63 between L and NV abilities, implying that over half of the genetic influence on L overlaps with genetic influence on NV. These results suggest that at age 4, genetic influences on individual differences in language overlap substantially with genetic influences on individual differences in other cognitive abilities, although perhaps less so than later in development. 相似文献
45.
The paper presents a methodological approach for assessing the personality of a dyad or a group, a concept that is not equivalent to the sum, or mean, of the individual scores. We illustrate how the logic of the multitrait multimethod approach, which is a familiar technique for establishing construct validity, can be extended to assess the construct of a relationship "personality." The model, which we call the latent group model, provides a decomposition and comparison of individual-level and group-level variance in a given trait, and the individual-level and group-level covariance or correlation between two traits. The model is also extended to the assessment of stability of the individual and group level traits. Throughout the paper, we draw connections between related methods and show how the latent group model can be estimated through hierarchical linear modeling. 相似文献
46.
The motion of objects that are both translating and rotating can be decomposed into an infinite number of translational and rotational combinations. How, then, do such stimuli routinely elicit specific percepts and behavioral responses that are usually appropriate? A possible answer is that motion percepts are fully determined by the probability distributions of all the possible correspondences and differences in the stimulus sequence. To test the merits of this conceptual framework, we investigated the perceived motion elicited by a line that is both translating and rotating behind an aperture. When stimuli are presented such that a particular sequence of appearance and disappearance occurs at the aperture boundary, subjects report that the line is rotating only; furthermore, the perceived centers of rotation appear to describe a cycloidal trajectory, even when one aperture shape is replaced by another. These and other perceptual effects elicited by translating and rotating stimuli are all accurately predicted by the probability distribution of the possible sources of the physical movements, supporting the conclusion that motion perception is indeed generated by a wholly probabilistic strategy. 相似文献
47.
Woodbury M 《Science and engineering ethics》2000,6(2):235-244
Business people repeatedly asked Computer Professionals for Social Responsibility (CPSR) to recommend a policy to deal with
email and voicemail. After many such requests to our organization, we attempted to construct guidelines that we could endorse.
This paper outlines the guidelines that we proposed and the public reaction to them. The paper discusses the tensions inherent
in a business environment, and the means of identifying ethical behavior for both companies and their employees.
A version of this paper was presented at ETHICOMP98, the Fourth International Conference on Ethical Issues of Information
Technology, March 25–27, 1998. Erasmus University, the Netherlands.
Dr. Woodbury is the former Chair of CPRS. Computer Professionals for Social Responsibility. She is also a curriculum developer
and faculty member of the Information Group of the Women’s International University (ifu) in Germany in 2000. 相似文献
48.
Andersen D;Danish Committee on Scientific Dishonesty 《Science and engineering ethics》2000,6(1):25-34
In 1992, The Danish Medical Research Council established a national committee on scientific dishonesty with the twofold task
of handling cases of scientific misconduct and taking preventive initiatives. Scientific dishonesty was proven in only five
cases, but in another nine cases lesser degrees of deviations from good scientific practice were found. The experiences from
a total of 24 treated cases indicated that three key areas were at the basis of most of the accusations and the deviations
from good practice: uncertainty about 1) authorship, about 2) rights and duties to use scientific data and about 3) agreements
at the initiation of joint studies. As a consequence guidelines on good practice have been issued on these key subjects.
An earlier version of this paper was presented at a symposium, Scientific Misconduct. An International Perspective, organised by The Medical University of Warsaw, 16 November, 1998. 相似文献
49.
50.