全文获取类型
收费全文 | 48000篇 |
免费 | 1239篇 |
国内免费 | 12篇 |
专业分类
49251篇 |
出版年
2020年 | 289篇 |
2019年 | 312篇 |
2018年 | 3843篇 |
2017年 | 3215篇 |
2016年 | 2736篇 |
2015年 | 600篇 |
2014年 | 468篇 |
2013年 | 2204篇 |
2012年 | 1298篇 |
2011年 | 3151篇 |
2010年 | 2928篇 |
2009年 | 1992篇 |
2008年 | 2364篇 |
2007年 | 2782篇 |
2006年 | 600篇 |
2005年 | 760篇 |
2004年 | 673篇 |
2003年 | 620篇 |
2002年 | 593篇 |
2001年 | 743篇 |
2000年 | 752篇 |
1999年 | 511篇 |
1998年 | 287篇 |
1997年 | 271篇 |
1992年 | 486篇 |
1991年 | 471篇 |
1990年 | 483篇 |
1989年 | 473篇 |
1988年 | 419篇 |
1987年 | 436篇 |
1986年 | 458篇 |
1985年 | 501篇 |
1984年 | 419篇 |
1983年 | 386篇 |
1982年 | 285篇 |
1981年 | 332篇 |
1979年 | 451篇 |
1978年 | 327篇 |
1977年 | 297篇 |
1976年 | 286篇 |
1975年 | 419篇 |
1974年 | 473篇 |
1973年 | 489篇 |
1972年 | 416篇 |
1971年 | 407篇 |
1970年 | 382篇 |
1969年 | 402篇 |
1968年 | 496篇 |
1967年 | 478篇 |
1966年 | 457篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
341.
We compared the effect of two approaches, family counseling and support groups, for relieving the stress and burden experienced by care givers of dementia patients. Both treatments are designed to implement features of a stress-management model that have been identified in prior research with this population: providing information about the patient's disease and its effects on behavior, teaching behavioral problem solving for managing difficult behavior, and identifying potential support for care givers. Subjects were primary care givers of dementia patients living in the community; they included husbands, wives, daughters, and other relatives. Although subjects in the treatment groups made significant gains over time, they did not differ from wait-list subjects who showed similar improvements. One-year follow-up interviews indicated that gains made during the treatment period were maintained. 相似文献
342.
We examined potential differences between two matched subgroups of elderly men: young-old (65-74 years of age; n = 53) and old-old (75 years of age and older; n = 56). Subjects were fairly healthy men from community agencies, who were interviewed and tested on a number of characteristics involving personality, mood, attitudes, and behaviors. Although t tests and correlations indicated some differences between the groups, the overall findings underlined their similarity on the vast majority of variables scrutinized. The crucial base for enhancing understanding in gerontology should not only focus on the age-advancing senescent person but on the whole individual. 相似文献
343.
344.
CARROLL D. OHLDE ANDREW H. SCHAUER NANCY J. GARFIELD TOM W. PATTERSON 《Journal of counseling and development : JCD》1987,66(2):104-106
The authors demonstrate the complexities and processes involved in constructing a screening test for posttraumatic stress disorder (PTSD). Discussion includes item development, field testing, and preliminary results. 相似文献
345.
H J Otto E Willenberg D Müller R H?fs J Freitag A Fiedler R Steinke 《Psychiatrie, Neurologie, und medizinische Psychologie》1987,39(12):748-753
The results of an evaluation of the perfusion scintigraphy findings of 350 hospitalised neurological patients and 55 more strictly selected neurosurgical patients with cerebrovascular complaints, revealed an accuraty of 83%, a sensitivity of 89%, and a specificity of 83%. The selection of the patients had no influence on the results as a whole. Compared with contrast-medium angiography, incorrect diagnosis must be expected in 17% of the cases. This includes erroneous negative findings in 10% of the cases. Grounds for misinterpretations are suggested, and the biological and methodological limitations of the method are set forth. 相似文献
346.
The centenary of Hermann Emminghaus's monograph "Die psychischen St?rungen des Kindesalters" ("The Psychic Disorders of Childhood") gives occasion to appreciate the life and work of the founder of modern children and youth psychiatry. Children and youth psychiatry, in the G.D.R., operates on the principle of sub-specialization out of its parent subjects. In this, Hermann Emminghaus's basic views, as expressed in his monograph of 1887, are confirmed. 相似文献
347.
G E Kühne G Koselowski H D Hempel 《Psychiatrie, Neurologie, und medizinische Psychologie》1987,39(3):129-133
The use of computer based diagnostic decision and artificial intelligence are discussed in relation to the problems of validity and reliability of psychiatric diagnoses. The authors suggest a definition of a computer aided classificator as an existent decision system for an automatically analysis of findings. 相似文献
348.
This article attempts to apply a theory of aggression as motivation to overcome obstacles to the understanding of phobic states and their formation. The role of aggression in the genesis of phobic conditions is discussed, and the traditional analytic view of aggression as instinctual drive is contrasted with a motivational approach. The motivational view offers the advantage of a clearer understanding of the stimulus contexts, representational connections, and both real and imaginary object connections that are lacking in the more traditional understanding of aggression as a biological drive. 相似文献
349.
350.
H Herzer R Herzer G Rabending R Altenstein M Grimmberger 《Psychiatrie, Neurologie, und medizinische Psychologie》1987,39(6):321-329
Investigating the specific of psychic performance disorders in epileptics structural aspects in addition to quantitative performance differences are considerable. We compared psychometrically obtained performance structures of epileptic children and adults and of parallelised healthy control persons. It became evident, that the performance differentiation hypothesis is to corroborate also in epileptic patients. The psychic performance structure of epileptics is characterized by a lower differentiation level of the basis functions underlining the performances. Our factor analytic investigations emphasize the importance of deceleration of psychic/psychomotoric speed in epileptics as primary basic disorder. 相似文献