全文获取类型
收费全文 | 6131篇 |
免费 | 301篇 |
国内免费 | 2篇 |
出版年
2023年 | 51篇 |
2022年 | 48篇 |
2021年 | 81篇 |
2020年 | 123篇 |
2019年 | 155篇 |
2018年 | 199篇 |
2017年 | 217篇 |
2016年 | 298篇 |
2015年 | 140篇 |
2014年 | 178篇 |
2013年 | 693篇 |
2012年 | 330篇 |
2011年 | 360篇 |
2010年 | 213篇 |
2009年 | 196篇 |
2008年 | 299篇 |
2007年 | 268篇 |
2006年 | 251篇 |
2005年 | 194篇 |
2004年 | 214篇 |
2003年 | 206篇 |
2002年 | 164篇 |
2001年 | 111篇 |
2000年 | 95篇 |
1999年 | 78篇 |
1998年 | 67篇 |
1997年 | 66篇 |
1996年 | 72篇 |
1995年 | 79篇 |
1994年 | 65篇 |
1993年 | 51篇 |
1992年 | 55篇 |
1991年 | 51篇 |
1990年 | 48篇 |
1989年 | 34篇 |
1988年 | 46篇 |
1987年 | 34篇 |
1986年 | 25篇 |
1985年 | 47篇 |
1984年 | 42篇 |
1983年 | 33篇 |
1982年 | 50篇 |
1981年 | 30篇 |
1980年 | 25篇 |
1979年 | 42篇 |
1978年 | 24篇 |
1977年 | 35篇 |
1975年 | 27篇 |
1974年 | 34篇 |
1970年 | 20篇 |
排序方式: 共有6434条查询结果,搜索用时 15 毫秒
101.
Toussaint HM Commissaris DA Van Dieeumlant;n JH Reijnen JS Praet SF Beek PJ 《Journal of motor behavior》1995,27(3):225-234
The control of the ground reaction force vector relative to the center of gravity (CoG) was examined while subjects performed a back-lifting task. Six male subjects (aged 24.0 +/- 2.5 years) repeatedly lifted a barbell. A biomechanical analysis that used a linked segment model revealed that the summed rotations of body segments during lifting yielded a specific rate of change of the angular momentum of the entire body. This equaled the external moment provided by Fsubg; relative to CoG. This implies that multisegment movements involve control of the angular momentum of the entire body through an appropriately directed Fsubg;. Thus, in dynamic tasks Fsubg; is pointed away from rather than lined up with the CoG, as is the case in static tasks. 相似文献
102.
Elizabeth Liebert 《Pastoral Psychology》1995,43(6):393-409
This essay has three purposes. First, it proposes a method for reading texts developmentally, noting the appropriate type of text for this enterprise, the process for estimating the subject's developmental perspective, and necessary cautions when undertaking a developmental interpretation. Second, it highlights developmental dynamics which can be approximated in other contexts. Finally, it lifts up the writings of an extraordinary young Dutch woman, a victim of Auschwitz, offering her life as a model of virtues which our society would do well to imitate more than fifty years after the Holocaust.Where she also directs the Program in Christian Spirituality. 相似文献
103.
THE SCHEDULE OF SEXIST EVENTS 总被引:3,自引:1,他引:2
104.
In this article, the conceptual instrument that pragma-dialectical argumentation theory offers is elaborated for the analysis and evaluation of problem-solving discussions. The elaboration is aimed expressly at taking into account the discussion character of the discourse, in order to show how the developing process evolves and what the obstacles are therein. In addition, it focuses expressly on the verbal behaviour of the participants and on showing how this behaviour controls the evolving process. The analysis and evaluation is based on insights and methods of conversational analysis and discourse analysis. One fragment of a problem-solving discussion is analysed and evaluated. 相似文献
105.
A series of studies investigated the capacity of children between the ages of 7 and 12 to give free and informed consent to participation in psychological research. Children were reasonably accurate in describing the purpose of studies, but many did not understand the possible benefits or especially the possible risks of participating. In several studies children's consent was not affected by the knowledge that their parents had given their permission or by the parents saying that they would not be upset if the children refused. In contrast, other studies found that children were much more likely to stop their participation if the experimenter said explicitly that she would not be upset if they stopped. We suggest that experimenters should pay more attention to describing the possible risks and benefits of participation in research, and that they should also make it clearer to children that they are free to stop once they have begun. 相似文献
106.
Research examining the possible effects of deceptive research participation on participants' perceptions of psychology has yielded equivocal results. The present study's goal was to clarify the possible effects of participation in mildly deceptive research on participants' impressions of scientific and applied psychology. Participants (N = 112) were randomly assigned to one of six experimental conditions: active groups receiving negative, positive, or no feedback, or passive groups receiving negative, positive, or no feedback. Following participation, participants completed measures of impressions of psychotherapy and psychotherapists, researchers, and instructors. The manipulation did not affect attitudes toward psychology on any of the dependent measures, although gender effects resulted on one measure. Participants in general reported very positive attitudes toward the science and practice of psychology. Recommendations are offered for future research on the effects of more extensive deceptions. 相似文献
107.
Many young children are reared today in both family and child-care settings. The relation that exists between these two settings has important implications for child care. Bronfenbrenner's (1979) ecological model is used as a way to view the interrelations among children, families, and child-care programs. Data from a study of infants in day care provide information on the time infants spend in family and day-care contexts, how parents and caregivers view children's behavior in these two settings, and rates of otitis media (ear infections) and other illnesses for these children. Results show that infants spend about twice as many hours per day awake with parents as in day care. Regarding child behaviors, parents and caregivers seem to have similar behaviors they like and dislike, but they each see particular children quite differently with respect to these behaviors. Finally, infants in this sample were diagnosed with illnesses 60% to 70% of the time. Findings are discussed in terms of the ecological model with particular attention given to relations between parents and caregivers. 相似文献
108.
Skinner Darlene M. Martin Gerard M. Pridgar Adora Van Der Kooy Derek 《Learning and motivation》1994,25(4)
Drug states, flavors, and contextual cues were each trained as conditional discriminative stimuli to control a saccharin-LiCl association. In transfer tests, drug states transferred control over consumption to other flavored solutions and to food. Contexts and flavors transferred control only to other flavored solutions. Pavlovian control groups given direct pairings of context-LiCl or flavor-LiCl did not show reliable transfer. However, these control groups did show greater or the same aversion to the specific context or flavor predicting LiCl compared to the context or flavor discrimination groups. The dissociation of the discrimination and Pavlovian groups on transfer versus preference tests suggests that performance on the occasion setting task cannot be due to simple excitation or learning about a unique compound cue. Data from extinction procedures provide further support for the dissociation between simple excitation and occasion setting. 相似文献
109.
Philosophical Studies - 相似文献
110.
During sensory preconditioning, rats were given two distinct flavors (saccharin and coffee) in sequence with 0, 9, or 27 sec between the two flavors. A control group received the flavors unpaired. In subsequent training, the second flavor preceded sucrose by 5 min. Later, the subjects that had had 0- or 9-sec delays between the two flavors showed a significant preference for the flavor not directly reinforced, whereas those that had had a 27-sec delay showed only a marginally significant preference. Although taste aversions have been produced using these methods, this is the first demonstration of conditioned preferences for flavors not directly associated with the reinforcers. These results offer an alternative way to study flavor-flavor learning. 相似文献