全文获取类型
收费全文 | 3612篇 |
免费 | 672篇 |
国内免费 | 404篇 |
出版年
2024年 | 17篇 |
2023年 | 85篇 |
2022年 | 127篇 |
2021年 | 142篇 |
2020年 | 244篇 |
2019年 | 180篇 |
2018年 | 178篇 |
2017年 | 167篇 |
2016年 | 153篇 |
2015年 | 150篇 |
2014年 | 147篇 |
2013年 | 396篇 |
2012年 | 147篇 |
2011年 | 182篇 |
2010年 | 110篇 |
2009年 | 166篇 |
2008年 | 151篇 |
2007年 | 163篇 |
2006年 | 167篇 |
2005年 | 129篇 |
2004年 | 120篇 |
2003年 | 112篇 |
2002年 | 93篇 |
2001年 | 72篇 |
2000年 | 79篇 |
1999年 | 66篇 |
1998年 | 56篇 |
1997年 | 70篇 |
1996年 | 55篇 |
1995年 | 54篇 |
1994年 | 67篇 |
1993年 | 46篇 |
1992年 | 44篇 |
1991年 | 36篇 |
1990年 | 29篇 |
1989年 | 21篇 |
1988年 | 20篇 |
1987年 | 35篇 |
1986年 | 31篇 |
1985年 | 37篇 |
1984年 | 38篇 |
1983年 | 33篇 |
1982年 | 34篇 |
1981年 | 32篇 |
1980年 | 28篇 |
1979年 | 32篇 |
1978年 | 28篇 |
1977年 | 51篇 |
1976年 | 41篇 |
1975年 | 26篇 |
排序方式: 共有4688条查询结果,搜索用时 31 毫秒
951.
亲群体行为在个体的成长与发展中具有重要的适应价值。三个研究探讨了社会排斥对亲群体行为意向的影响以及权力感的调节作用。研究1采用问卷法考察社会排斥与亲群体行为意向的关系,发现社会排斥能够正向预测亲群体行为意向;研究2与研究3采用实验法操纵社会排斥,并分别通过回忆法启动个体状态权力感(研究2)、测量特质权力感(研究3),发现在社会排斥下,相比于低权力感者,高权力感者的亲群体行为意向更高,结果证实了权力感能够调节社会排斥对亲群体行为意向的影响。 相似文献
952.
953.
保持手卫生是感染防控的重要策略,但是如何提高其依从性成为预防传染性疾病和减少医疗机构获得性感染的一大挑战。以行为科学为基础的手卫生助推干预以更“隐性”的方式将洗手转变为一种可自动触发的行为习惯,弥补了以知识分享和健康宣教为主的传统手卫生干预策略的诸多局限性。基于影响机制的不同,手卫生助推干预策略可分为提供决策信息、优化决策选项、影响决策结构、提醒决策方向4个大类的框架体系。多模式助推策略的有效性也已在实践中得到印证,但目前还非常缺乏在中国社会文化情境下开展的助推洗手行为的干预研究,今后可尝试基于行为科学理论有针对性地在医院、学校和社区等公共场所开展此类干预研究和实践,为感染防控、疾病预防和改善公共健康做出相应的贡献。 相似文献
954.
955.
956.
Human operant performance: Sensitivity and pseudosensitivity to contingencies 总被引:2,自引:2,他引:0 下载免费PDF全文
Shimoff E Matthews BA Catania AC 《Journal of the experimental analysis of behavior》1986,46(2):149-157
Undergraduates' button presses occasionally produced points exchangeable for money. Left and right buttons were initially correlated with multiple random-ratio (RR) and random-interval (RI) components, respectively. During interruptions of the multiple schedule, students filled out sentence-completion guess sheets describing the schedules, and points were contingent upon the accuracy of guesses. To test for sensitivity to schedule contingencies, schedule components were repeatedly reversed between the two buttons. Pressing rates were consistently higher in ratio than in interval components even when feedback for guesses was discontinued, demonstrating sensitivity to the difference between ratio and interval contingencies. The question was whether this sensitivity was based directly on the contingencies or whether it was rule-governed. For two students, when multiple RR RI schedules were changed to multiple RI RI schedules, rates became low in both components of the multiple RI RI schedule; however, subsequent prevention of point deliveries for the first few responses in any component produced high rates in that component. For a third student, response rates became higher in the RI component that provided the lower rate of reinforcement. In each case, performance was inconsistent with typical effects of the respective schedules with nonhuman organisms; it was therefore plausible to conclude that the apparently contingency-governed performances were instead rule-governed. 相似文献
957.
John E. Seaman Brandon F. Greene Maria Watson-Perczel 《Journal of applied behavior analysis》1986,19(2):125-135
Many deaths from cardiopulmonary arrest can be prevented by the prompt and effective administration of cardiopulmonary resuscitation (CPR). In this study, we examined the standard training program for teaching CPR to emergency medical technicians (EMTs). We developed an alternative experimental program whereby the behaviors involved in CPR were assessed easily and in greater detail. This assessment provided the basis for a system in which effective CPR skills were reinforced and problems were corrected. Subjects who were trained in CPR according to this experimental program performed more effectively than subjects in the standard program. In addition, retention (maintenance) measures indicated that experimental subjects continued to perform well, often more effectively than professionally employed EMTs. 相似文献
958.
We investigated the effects of a sibling training procedure, consisting of direct prompting and modeling, on the occurrence of reciprocal interactions between nonhandicapped and handicapped siblings. Data were obtained for training, generalization, and follow-up. Results of a multiple-baseline design across three pairs of siblings showed that: (a) direct prompting of interactions was an effective strategy for increasing reciprocal interactions between handicapped and nonhandicapped siblings; (b) the training procedure resulted in increased levels of initiations and responsiveness to initiations; (c) reciprocal interactions between siblings generalized to larger play groups or across settings; (d) reciprocal interactions between handicapped subjects and untrained, nonhandicapped peers increased without direct training; (e) the siblings' levels of interactions were maintained at 6 mo follow-up; and (f) these findings were judged socially valid by the siblings' parents. 相似文献
959.
We investigated the social validity of a common intervention (i.e., serving food during a social hour) that has been reported to facilitate social interaction among nursing home residents. Using a group reversal design, rates of interaction were measured. In addition, the vocal content of the interactions was recorded and coded by raters blind to condition. Rates of interaction more than doubled during the treatment phases, but ineffective vocal behavior accounted for the bulk of the increase. Results suggest the need to examine the utility of such programs in nursing homes. 相似文献
960.
Karen R. Harris 《Journal of applied behavior analysis》1986,19(4):417-423
I investigated the differential effects of self-monitoring of attentional behavior and self-monitoring of productivity on on-task behavior and academic response rate. Subjects were four learning disabled children with significant attentional problems. Results indicated relatively equivalent increases in on-task behavior over baseline during all treatment phases. Academic response rate also improved under both interventions, with self-monitoring of productivity showing a superior effect for one subject, an equivalent effect for one subject, and less dear results for two subjects. 相似文献