全文获取类型
收费全文 | 84918篇 |
免费 | 3399篇 |
国内免费 | 23篇 |
专业分类
88340篇 |
出版年
2020年 | 802篇 |
2019年 | 1088篇 |
2018年 | 1435篇 |
2017年 | 1485篇 |
2016年 | 1558篇 |
2015年 | 1125篇 |
2014年 | 1364篇 |
2013年 | 6298篇 |
2012年 | 2509篇 |
2011年 | 2700篇 |
2010年 | 1666篇 |
2009年 | 1659篇 |
2008年 | 2397篇 |
2007年 | 2393篇 |
2006年 | 2203篇 |
2005年 | 1960篇 |
2004年 | 1848篇 |
2003年 | 1717篇 |
2002年 | 1859篇 |
2001年 | 2667篇 |
2000年 | 2564篇 |
1999年 | 1959篇 |
1998年 | 995篇 |
1997年 | 869篇 |
1996年 | 860篇 |
1992年 | 1626篇 |
1991年 | 1518篇 |
1990年 | 1519篇 |
1989年 | 1424篇 |
1988年 | 1399篇 |
1987年 | 1331篇 |
1986年 | 1412篇 |
1985年 | 1473篇 |
1984年 | 1228篇 |
1983年 | 1138篇 |
1982年 | 854篇 |
1981年 | 843篇 |
1979年 | 1341篇 |
1978年 | 958篇 |
1976年 | 809篇 |
1975年 | 1100篇 |
1974年 | 1202篇 |
1973年 | 1288篇 |
1972年 | 1072篇 |
1971年 | 1022篇 |
1970年 | 930篇 |
1969年 | 986篇 |
1968年 | 1231篇 |
1967年 | 1105篇 |
1966年 | 973篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
931.
Behavioral analysis of sexual dysfunction in Hansen's disease 总被引:1,自引:0,他引:1
M E Faulstich 《Perceptual and motor skills》1985,60(1):115-118
Human sexual behavior is an interactive process including CNS, hormonal, and sex-gland activities. This process can be disrupted in males who have Hansen's disease if testicular atrophy occurs. Elevations of centrally mediated luteinizing hormone and deficient testosterone levels were found in a male with Hansen's disease whose insufficient erections were secondary to atrophic testes. Quasi-experimental (A-B) analysis provided evidence for the efficacy of testosterone treatment for such a condition. 相似文献
932.
R E Koslow 《Perceptual and motor skills》1985,60(2):351-354
The subjects were 16 college students assessed as having normal, uncorrected visual abilities. Each subject responded to the appearance of each of five variously colored ball sections as they were introduced into the subjects' visual field. Analysis indicated that colors with luminance values greater than 70 CD/M2 (black, blue, green) were detected further in the horizontal peripheral plane than were colors possessing values less than 36 CD/M2 (red, purple). 相似文献
933.
Human figure drawings of 12 pediatric oncology patients were significantly smaller in height, width, and area than were drawings of 12 school children and 12 pediatric general surgery patients paired for sex and age. The Goodenough-Harris scores of the cancer patients' drawings were also significantly lower than those of both school and general surgery groups. It is hypothesized that anxiety, lowered self-esteem, and the effects of chemotherapy contributed to these findings. 相似文献
934.
Subjects in a prior study of complex learning often experienced difficulty in mastering the task because of an apparent reluctance to release one perceptual field and reconstrue the task on a higher cognitive level. It was hypothesized that were this the correct explanation, the faster learners would be more field independent on a measure of field dependence, since independence has been defined in terms of ease in releasing one's attention from the immediate perceptual field. This hypothesis was tested with 22 undergraduate subjects for whom Group Embedded Figures Test scores were correlated with the number of trials to completion on the complex learning task. A moderate but significant correlation supported the hypothesis. 相似文献
935.
The association of left lateral eye-movement with emotionality or arousal of affect and of right lateral eye-movement with cognitive/interpretive operations and functions was investigated. Participants were junior and senior students enrolled in an undergraduate course in developmental psychology. There were 37 women and 13 men, ranging from 19 to 45 yr. of age. Using videotaped lateral eye-movements of 50 participants' responses to 15 visually presented stimuli (precategorized as neutral, emotional, or intellectual), content and statistical analyses supported the association between left lateral eye-movement and emotional arousal and between right lateral eye-movement and cognitive functions. Precategorized visual stimuli included items such as a ball (neutral), gun (emotional), and calculator (intellectual). The findings are congruent with existing lateral eye-movement literature and also are additive by using visual stimuli that do not require the explicit response or implicit processing of verbal questioning. 相似文献
936.
A property of attitudes, namely, the fact that attitudes select facts, is used to comment upon a paper on handedness and career choice. 相似文献
937.
Effects of presentation complexity on rapid-sequential reading 总被引:1,自引:0,他引:1
938.
939.
940.