全文获取类型
收费全文 | 22415篇 |
免费 | 72篇 |
国内免费 | 3篇 |
出版年
2020年 | 34篇 |
2019年 | 40篇 |
2018年 | 3519篇 |
2017年 | 2850篇 |
2016年 | 2288篇 |
2015年 | 223篇 |
2014年 | 120篇 |
2013年 | 333篇 |
2012年 | 642篇 |
2011年 | 2454篇 |
2010年 | 2558篇 |
2009年 | 1513篇 |
2008年 | 1763篇 |
2007年 | 2255篇 |
2006年 | 92篇 |
2005年 | 283篇 |
2004年 | 229篇 |
2003年 | 167篇 |
2002年 | 140篇 |
2001年 | 64篇 |
2000年 | 87篇 |
1999年 | 49篇 |
1998年 | 53篇 |
1997年 | 48篇 |
1996年 | 38篇 |
1995年 | 19篇 |
1994年 | 30篇 |
1993年 | 25篇 |
1992年 | 29篇 |
1991年 | 24篇 |
1990年 | 25篇 |
1989年 | 19篇 |
1988年 | 14篇 |
1987年 | 16篇 |
1986年 | 23篇 |
1985年 | 17篇 |
1984年 | 29篇 |
1983年 | 25篇 |
1982年 | 31篇 |
1981年 | 28篇 |
1980年 | 26篇 |
1979年 | 22篇 |
1978年 | 29篇 |
1977年 | 24篇 |
1976年 | 23篇 |
1975年 | 17篇 |
1974年 | 20篇 |
1973年 | 23篇 |
1972年 | 12篇 |
1967年 | 11篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
31.
32.
Philip Clayton 《Zygon》1989,24(3):315-334
Abstract. Imre Lakatos's philosophy of science can provide helpful leads for theological methodology, but only when mediated by the disciplines that lie between the natural sciences and theology. The questions of relativism and truth are used as indices for comparing disciplines, and Lakatos's theory of natural science is taken as the starting point. Major modifications of Lakatos's work are demanded as one moves from the natural sciences, through economics, the interpretive social sciences, literary theory, and into theology. Although theology may consist of Lakatosian research programs, it also includes programs of interpretation and programs for living. This conclusion must influence our definition of theological truth and our assessment of theological relativism. 相似文献
33.
Three samples of different levels of mental ability, but each of average or above- average intelligence, were administered a battery of reaction time test which measure the speed with which persons can execute various elementary cognitive processes. Discriminant analyses revealed significant differences between the groups in reaction times and intraindividual standard deviations, and univariate analyses indicated that higher ability groups tended to obtain significantly faster mean reaction times and to show significantly less intraindividual variability than lower ability groups. Groups which differed the most in mental ability differed to the greatest extent on the more complex reaction time tests but this pattern was reversed for groups which were relatively close in mean IQ. Generally, the results support the hypothesis that speed- of-processing is an important factor unferlying intelligence, but a number of puzzling findings indicate the need for continued research in this area. 相似文献
34.
35.
36.
37.
38.
Philip A. Saigh 《Behaviour research and therapy》1984,22(6):679-682
Three self-report anxiety questionnaires were administered to a sample of Lebanese undergraduates shortly before the Israeli invasion of Lebanon in 1982. Six months after the disengagement of forces, the investigator located 20 Ss who had remained in West Beirut throughout the siege and 35 Ss who had evacuated to safer environs. The inventories were readministered to the Ss and the results revealed that: (1) there were no significant differences between the preinvasion scores of the evacuees and nonevacuees: (2) there were no significant differences between the postinvasion scores of the evacuees and nonevacuees: and (3) the aggregate scores of both groups vis-á-vis war-related stimuli were significantly lower at postassessment. 相似文献
39.
Philip H. Marshall Libardo Eduardo Caraveo-Ramos 《Journal of psycholinguistic research》1984,13(4):295-306
Two experiments are reported that examine the nature of the processing of frequency information in Spanish-English bilinguals. In the first study, subjects studied a list of English-only, Spanish-only, and mixed-language words varying in their frequency of occurrence, and under conditions of being either informed or uninformed about the later frequency test. Subjects were then shown pictures represeting the nominally presented items and had to give frequency judgments for the words depicting the objects. Frequency judgments were significantly faster when the words had been presented in a single language, suggesting a summation of access times for the mixed-language words. Instructional conditions had no effect on frequency judgments, but the latency to judge was significantly reduced for the informed subjects. In the second study, using similar acquisition procedures, subjects were shown test words in either the same or the different language from the one in which the words were originally experienced. Subjects demonstrated a clear ability to assign frequencies according to the relationship between acquisition and test language. The data were discussed in terms of supporting the hypothesis of separate bilingual language processing, and implications for the automatic nature of frequency acquisition were also addressed.This article is based on a paper originally presented at the meetings of the Southwestern Psychological Association, San Antonio, April 1983. 相似文献
40.
Utilizing the methodology of content analysis, this study investigates the sexrole variables in prime-time television portrayals of nurses and physicians from 1950 to 1980. A 20% sample of 28 relevant series yielded 320 individual episodes, 240 nurse characters, and 287 physicians characters. Results show extreme levels of both sexual and occupational stereotyping. Television nurses are 99% female, and television physicians are 95% male. The cluster of sex and occupational role characteristics, personality attributes, primary values, career orientation, professional competencies, and the tone of nurse-physician relationships converge to yield an image of the female professional nurse as totally dependent on and subservient to male physicians. The development of this dichotomous sex and occupational role imagery has resulted in male television physicians who not only have outstanding medical competencies but also embrace all the attractive competencies of professional nurses. Television nurses largely serve as window dressing on the set and have little opportunity to contribute to patient welfare. Action is needed to improve the quality of nurse portrayals by making them more congruent with the real world of work in health care.This study was supported by a research grant from the U.S. Public Health Service, Health Resources Administration (NU 00579). 相似文献