全文获取类型
收费全文 | 1252篇 |
免费 | 52篇 |
国内免费 | 2篇 |
出版年
2023年 | 8篇 |
2020年 | 11篇 |
2019年 | 18篇 |
2018年 | 14篇 |
2017年 | 24篇 |
2016年 | 30篇 |
2015年 | 11篇 |
2014年 | 26篇 |
2013年 | 122篇 |
2012年 | 43篇 |
2011年 | 49篇 |
2010年 | 29篇 |
2009年 | 28篇 |
2008年 | 55篇 |
2007年 | 42篇 |
2006年 | 36篇 |
2005年 | 32篇 |
2004年 | 44篇 |
2003年 | 46篇 |
2002年 | 37篇 |
2001年 | 16篇 |
2000年 | 25篇 |
1999年 | 21篇 |
1998年 | 17篇 |
1997年 | 21篇 |
1996年 | 23篇 |
1995年 | 20篇 |
1994年 | 21篇 |
1993年 | 18篇 |
1992年 | 24篇 |
1991年 | 10篇 |
1990年 | 17篇 |
1989年 | 11篇 |
1988年 | 10篇 |
1987年 | 15篇 |
1986年 | 17篇 |
1985年 | 16篇 |
1984年 | 29篇 |
1983年 | 28篇 |
1982年 | 11篇 |
1981年 | 22篇 |
1980年 | 11篇 |
1979年 | 10篇 |
1978年 | 11篇 |
1977年 | 26篇 |
1976年 | 16篇 |
1975年 | 25篇 |
1974年 | 12篇 |
1973年 | 16篇 |
1972年 | 12篇 |
排序方式: 共有1306条查询结果,搜索用时 46 毫秒
1.
Reducing STD/HIV Stigmatizing Attitudes Through Community Popular Opinion Leaders in Chinese Markets
Reducing STDs and HIV/AIDS incidence requires campaigns designed to change knowledge, attitudes, and practices of risky sexual behavior. In China, a significant obstacle to such changes is the stigma associated with these diseases. Thus 1 campaign intervention strategy is to train credible community leaders to discuss these issues in everyday social venues. This study tested the effectiveness of such an approach on reducing HIV/AIDS stigma, across 2 years, from a sample of over 4,500 market vendors, in 3 conditions. Results showed an increasing growth in market communication about intervention messages, and concomitant declines in stigmatizing attitudes, across time, with the greatest changes in community popular opinion leaders, significant changes in intervention nonopinion leaders, and little change in the control markets. 相似文献
2.
3.
Roger A. Kendall 《Behavior research methods》1988,20(2):129-136
A hardware-and-software system is described that permits musical-bandwidth signal quantization, monophonic or stereophonic, direct to/from hard disk. The system, which uses an IBM AT or compatible, is cost effective and device independent. Software functions allow for automated aural and graphical signal analyses. Perceptual experiments that use contextual, natural-instrument stimuli, and that take advantage of the immediate and random access provided by this system, are described. 相似文献
4.
This paper describes a method of establishing time intervals at a precision of better than 1 msec, using QuickBASIC 4.0, for running real time experiments on an IBM PC without an 8087 coprocessor. This method is far superior to the TIMER function provided by BASIC, which has a precision of only 110 msec. Also described is an assembly language subroutine that corrects a problem in QuickBASIC 3.0 and QuickBASIC 4.0 to allow proper switching between screens in the CGA text mode for use of the PC as a tachistoscope. A tachistoscope program listing shows how to use the screen subroutine and how to establish intertriai intervals and record reaction times using the timing subroutines. 相似文献
5.
A computer-controlled system that detects spontaneous activity (locomotion and rearing) and diurnal activity rhythms in small animals is described. Automatic recording of subtotals during test periods provides data about habituation (nonassociative learning). The system is relatively inexpensive to construct. Fabricated from highly reliable circuit components, it provides replicable measures that enable comparisons between different experimental treatments to be made using parametric statistics. 相似文献
6.
7.
Lynette K. Chandler Susan A. Fowler Roger C. Lubeck 《Journal of applied behavior analysis》1992,25(2):249-263
We examined the effects of four combinations of setting events on the social interactions of 7 preschool children with social delays. In Study 1, the status of the teacher, activity materials, and peer varied across conditions. In Study 2, the status of the teacher and materials varied across conditions. Within the combinations of setting events, we also examined teacher behavior. Teacher presence and absence was varied in both studies. The type and rate of teacher prompting were varied in Study 2. The four combinations of setting events produced different rates of social behavior by the children with social delays. The optimal combination of setting events for promoting peer interaction and reducing teacher—child interaction included teacher absence from the activity, a limited number and form of materials, and children paired with a socially skilled partner. 相似文献
8.
Arthur J. Reynolds Roger P. Weissberg Wesley J. Kasprow 《American journal of community psychology》1992,20(5):599-624
Investigated predictors of five measures of early school adjustment for an ethnically diverse cohort of 683 inner-city kindergartners and first graders. Data from 2 consecutive years were collected from teachers, school records, and children. A multiple-regression preduction model significantly explained children's competence behavior, problem behavior, reading achievement, mathematics achievement, and school absences. Prior adjustment and sociodemographic factors explained a majority of the variance in adjustment. Perceived quality of parent involvement was signifcantly related (in the expected direction) to all five outcomes. Exposure to life events was significantly associated in the expected direction with competence behavior, problem behavior, and school absences but not with reading and mathematics achievement. Together, parent involvement and life-event variables explained as much as 12% of the variance in adjustment independent of sociodemographic and prior adjustment factors. The role of family and school factors in the adjustment of children at risk is discussed [corrected]. 相似文献
9.
Mary Gallagher Rob Millar Owen Hargie Roger Ellis 《British Journal of Guidance & Counselling》1992,20(3):274-290
The aim of this study was to ascertain the self-perceived social and personal concerns of adolescents attending educational institutions in Northern Ireland. 446 questionnaires from 15-18-year-old students at ten institutions were analysed in order to determine the frequency with which respondents reported worrying about the following broad areas: school, choosing a job, finding a job, home, starting work, opposite-sex relationships, personal issues, and relating to others. The effects of variables such as gender, age and nature of educational institution attended were also examined. The results indicated that most frequent worry was reported about finding and choosing employment, personal issues and opposite-sex relationships. Gender, age and religious affiliation of school attended exerted major effects. Implications for those involved in working with adolescents within educational contexts are discussed. 相似文献
10.
Roger W. Sperry 《Zygon》1992,27(3):245-259
Abstract. My account of the recent turnabout in the treatment of mental states in science and its basis in a modified concept of causal determinism and my claim that this opens the way for beliefs and values consistent with science are here reaffirmed in response to perceived weaknesses and "inherent incompleteness." Contested issues are reviewed to better clarify the main thesis. An inherent weakness in respect to deep spiritual needs is recognized and tentative remedial measures explored. 相似文献