全文获取类型
收费全文 | 60751篇 |
免费 | 2374篇 |
国内免费 | 25篇 |
出版年
2019年 | 813篇 |
2018年 | 1060篇 |
2017年 | 1138篇 |
2016年 | 1106篇 |
2015年 | 796篇 |
2014年 | 958篇 |
2013年 | 4627篇 |
2012年 | 1738篇 |
2011年 | 1869篇 |
2010年 | 1188篇 |
2009年 | 1168篇 |
2008年 | 1681篇 |
2007年 | 1598篇 |
2006年 | 1504篇 |
2005年 | 1330篇 |
2004年 | 1247篇 |
2003年 | 1221篇 |
2002年 | 1219篇 |
2001年 | 2007篇 |
2000年 | 1887篇 |
1999年 | 1421篇 |
1998年 | 718篇 |
1997年 | 592篇 |
1996年 | 580篇 |
1992年 | 1180篇 |
1991年 | 1145篇 |
1990年 | 1089篇 |
1989年 | 1052篇 |
1988年 | 1031篇 |
1987年 | 993篇 |
1986年 | 1000篇 |
1985年 | 1079篇 |
1984年 | 871篇 |
1983年 | 755篇 |
1982年 | 615篇 |
1981年 | 601篇 |
1979年 | 923篇 |
1978年 | 698篇 |
1977年 | 613篇 |
1976年 | 627篇 |
1975年 | 800篇 |
1974年 | 851篇 |
1973年 | 930篇 |
1972年 | 746篇 |
1971年 | 656篇 |
1970年 | 645篇 |
1969年 | 686篇 |
1968年 | 825篇 |
1967年 | 714篇 |
1966年 | 761篇 |
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
991.
Daniel E. Everitt M.D. 《Journal of religion and health》1987,26(2):92-96
The goals and ends of contemporary medicine are often unclear. An explicit inquiry into the religious dimensions of healing offers an important perspective from which to evaluate the potential capabilities of the medical profession. This paper describes a course in which medical students joined divinity students to explore areas of mutual intellectual, professional, and personal interest. Students and faculty examined in depth three broad areas in which medicine and religion share common ground: concepts of health and illness from the religious perspective, approaches to the understanding of suffering and meaning, and the shared professional stresses of physician and clergy.This paper comes from the Department of Medicine, Beth Israel Hospital, and the Division on Aging and the Program for the Analysis of Clinical Strategies, Harvard Medical School, and the West Roxbury-Brockton Veterans Administration Geriatric Research, Education and Clinical Center, Boston. 相似文献
992.
Keller FS 《Journal of the experimental analysis of behavior》1987,48(3):453-455
993.
The self-consciousness scale of Fenigstein, Scheier, and Buss (1975) was subjected to internal and external consistency tests based on the classical test theory model. The scale was found to have five underlying dimensions: two for private self-consciousness (viz., self-reflectiveness and internal state awareness), two for public self-consciousness, and one for social anxiety. The confirmatory factor analysis procedures employed by Burnkrant and Page (1984) are shown to be fallible as indicators of unidimensionality. Theoretical implications of newly identified dimensions in the public self-consciousness subscale are discussed. 相似文献
994.
A within-subjects comparison was made of pigeons' performance on two temporal discrimination procedures that were signaled by differently colored keylight samples. During stimulus trials, a peck on the key displaying a slanted line was reinforced following short keylight samples, and a peck on the key displaying a horizontal line was reinforced following long keylight samples, regardless of the location of the stimuli on those two choice keys. During position trials, a peck on the left key was reinforced following short keylight samples and a peck on the right key was reinforced following long keylight samples, regardless of which line stimulus appeared on the correct key. Thus, on stimulus trials, the correct choice key could not be discriminated prior to the presentation of the test stimuli, whereas on position trials, the correct choice key could be discriminated during the presentation of the sample stimulus. During Phase 1, with a 0-s delay between sample and choice stimuli, discrimination learning was faster on position trials than on stimulus trials for all 4 birds. During Phase 2, 0-, 0.5-, and 1.0-s delays produced differential loss of stimulus control under the two tasks for 2 birds. Response patterns during the delay intervals provided some evidence for differential mediation of the two delayed discriminations. These between-task differences suggest that the same processes may not mediate performance in each. 相似文献
995.
996.
997.
998.
999.
1000.
Malthus's Essay on Population: the facts of "super-growth" and the rhetoric of scientific persuasion
S Rashid 《Journal of the history of the behavioral sciences》1987,23(1):22-36
For the Malthusian theory of population to be accepted as "scientific," it was essential that the theory be established on wide empirical evidence. A close examination of the "facts" provided by Malthus, however, shows that many of his crucial facts are based on distortions of the available evidence. Malthus was probably aware of much of this weakness, but for rhetorical reasons he persisted with the sandy empirical foundations from which he began. 相似文献