全文获取类型
收费全文 | 45091篇 |
免费 | 1782篇 |
国内免费 | 24篇 |
专业分类
46897篇 |
出版年
2020年 | 454篇 |
2019年 | 568篇 |
2018年 | 796篇 |
2017年 | 826篇 |
2016年 | 821篇 |
2015年 | 619篇 |
2014年 | 715篇 |
2013年 | 3414篇 |
2012年 | 1292篇 |
2011年 | 1359篇 |
2010年 | 901篇 |
2009年 | 877篇 |
2008年 | 1229篇 |
2007年 | 1194篇 |
2006年 | 1089篇 |
2005年 | 961篇 |
2004年 | 880篇 |
2003年 | 871篇 |
2002年 | 859篇 |
2001年 | 1713篇 |
2000年 | 1691篇 |
1999年 | 1207篇 |
1998年 | 515篇 |
1997年 | 448篇 |
1996年 | 435篇 |
1995年 | 419篇 |
1992年 | 1001篇 |
1991年 | 973篇 |
1990年 | 958篇 |
1989年 | 852篇 |
1988年 | 826篇 |
1987年 | 824篇 |
1986年 | 771篇 |
1985年 | 825篇 |
1984年 | 683篇 |
1983年 | 545篇 |
1982年 | 432篇 |
1979年 | 651篇 |
1978年 | 495篇 |
1977年 | 452篇 |
1975年 | 575篇 |
1974年 | 618篇 |
1973年 | 678篇 |
1972年 | 543篇 |
1971年 | 482篇 |
1970年 | 435篇 |
1969年 | 477篇 |
1968年 | 574篇 |
1967年 | 497篇 |
1966年 | 517篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
161.
Jeffrey S. Levin Ph.D. M.P.H. C. David Jenkins Ph.D. Robert M. Rose M. D. 《Journal of religion and health》1988,27(4):267-278
In a study of air traffic controllers, religious differences are found in the way Type A behavior is associated with several health status indicators. Associations between the Jenkins Activity Survey (JAS) and physical illness incidence, health-promotive behavior, diastolic and systolic blood pressure, subjective distress and impulse control problems, and alcohol consumption are examined by religious attendance, religious affiliation, and change in affiliation. Findings confirm that Type A does not vary significantly by religion. However, there are several significant findings between Type A and various health indicators. Type A is associated with illness incidence, overall and more strongly in several religion, subgroups. Type A and alcohol consumption are related positively in Protestants and converts, and negatively in churchgoing Catholics. Type A is related to impulse control problems in churchgoing Protestants and to subjective distress in churchgoing Catholics. Finally, in individuals with weak or no religious ties, Type A is associated with lower blood pressure. This last finding suggests that in some people (for example, the irreligious or unchurched), the coronary-prone behavior pattern may have cardiovascular effects which are salutary in at least one respect.The authors wish to thank Dr. Kyriakos S. Markides and Laura A. Ray for their assistance with this study. Address requests for reprints to Dr. Levin at the Institute of Gerontology, 300 North Ingalls, Ann Arbor, MI 48109. 相似文献
162.
163.
On analog movements of visual attention 总被引:2,自引:0,他引:2
S Yantis 《Perception & psychophysics》1988,43(2):203-206
164.
Individuals with stronger sex-role identities may be expected to show greater conformity to sex-typed behaviors. Proceeding from this assumption, the sex-role status and sex of students using different styles of carrying books were compared. This study also examined whether over-all hand preference or age were related to carrying styles or sex-role status. Subjects completed a questionnaire comprised of the 24-item Personal Attributes Questionnaire of Spence and Helmreich, a 6-item scale of hand preference and a self-rating of sex-role identity. Afterwards, each subject's carrying style was covertly observed and recorded. Most subjects carried their materials in a sex-typical way or in book bags (for which no sex-typed carrying styles were discovered). As in previous studies, men in this study scored higher than women on masculinity and androgyny and lower on femininity. Hand preference was not related to sex-role status. Carrying style was not significantly correlated with any of the predictor variables for men, perhaps because almost no variance in carrying style was observed among them. Women who used masculine carrying styles tended to be older, have greater instrumentality, and a more masculine identity. 相似文献
165.
E Schier T Yecunnoamlack T Tegegne 《Psychiatrie, Neurologie, und medizinische Psychologie》1988,40(8):490-499
Of 1240 first-time consultations in the neuropsychiatric clinic of the Gondar College of Medical Sciences in an eleven-month period during 1985 and 1986, 152 patients came seeking relief from seizures. This paper deals with the origins and background of diagnostic, differential diagnostic, and therapeutic problems, and with problems of social rehabilitation. While in such a tradition-bound society certain hypotheses continue to have an unfavorable effect, there are unmistakable signs of positive change against a background of rapid social change. Conclusions are drawn for the better management of epileptic patients in developing countries. 相似文献
166.
Visual cognitive differences between hearing (N = 16) and deaf (N = 32) high-school and middle-school students were studied. Visual tasks were presented on a microcomputer and response latencies were collected. Significant differences were noted between the deaf and normal groups but not between total communication deaf and oral deaf students. These differences support the hypothesis that deaf students prefer a visual cognitive strategy. Implications for educating the deaf are discussed. 相似文献
167.
S Martin K Housley H Mccoy P Greenhouse F Stigger M A Kenney S Shoffner V Fu M Korslund F G Ercanli-Huffman 《Perceptual and motor skills》1988,67(3):879-884
The Rosenberg Self-esteem Scale was administered to 550 14- and 16-yr.-old (+/- 6 mo.) girls. Self-esteem scores were categorized by weight and weight by height. Scores on the Quetelet Index for obesity were correlated with self-esteem scores. Mean self-esteem of the low- and middle-weight by height group was significantly higher than the mean of the high-weight by height group. In analyzing weight alone, the self-esteem of the middle-weight group was significantly higher than the self-esteem of the high-weight group. The correlation of the obesity index and self-esteem indicated that as weight increased self-esteem decreased. 相似文献
168.
S W?sser W Handrick F B Spencker W Braun 《Psychiatrie, Neurologie, und medizinische Psychologie》1988,40(2):95-101
Observations on three children with neurolisteriosis (one case of meningitis, two cases of meningoencephalitis, each Serovar 4 b), show that even after the neonatal period, listeriosis must not be ignored in the process of diagnosis and therapy. It is the bacteriological examination of the cerebrospinal fluid, together with the blood culture, and not clinical symptoms and serology that guarantee a timely diagnosis and therapy (ampicillin and gentamicin). 相似文献
169.
W S Poland 《The Psychoanalytic quarterly》1988,57(3):341-369
Insight reflects the unitary nature of psychic activity in contrast to the fragmentation created in abstracting categories for the purpose of study and discussion. The unique analytic clinical dyad offers a structure in which intrapsychic fragments can be actualized and integrated. As a result, the analyst's contribution is more crucially one of exploration than of revelation. Whatever the area of examination, past or present, the link to analytic immediacy offers the opportunity to make meanings meaningful, to convert known facts to psychic truths. The analyst's clinical task requires his private self-analysis as part of the collaborative exploration of how the patient's mind works. Higher level ego functioning, including acutely active remembering, is at times transiently loosened in order for the analyst to share in the clinical work of discovery. The words the analyst uses to communicate his understanding convey only approximate manifest meanings, though they structurally reveal deeper messages of importance to the patient. These verbal approximations help stimulate self-reflection in the analysand as a step in the process of gaining insight. 相似文献
170.