首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   5976篇
  免费   82篇
  国内免费   1篇
  6059篇
  2021年   66篇
  2020年   117篇
  2019年   114篇
  2018年   187篇
  2017年   189篇
  2016年   179篇
  2015年   109篇
  2014年   123篇
  2013年   541篇
  2012年   220篇
  2011年   197篇
  2010年   134篇
  2009年   145篇
  2008年   169篇
  2007年   164篇
  2006年   155篇
  2005年   145篇
  2004年   122篇
  2003年   116篇
  2002年   101篇
  2001年   152篇
  2000年   134篇
  1999年   106篇
  1998年   59篇
  1997年   60篇
  1996年   57篇
  1994年   51篇
  1993年   66篇
  1992年   74篇
  1991年   99篇
  1990年   71篇
  1989年   75篇
  1988年   73篇
  1987年   66篇
  1986年   58篇
  1985年   68篇
  1984年   71篇
  1983年   62篇
  1982年   66篇
  1981年   51篇
  1979年   71篇
  1978年   68篇
  1977年   60篇
  1976年   58篇
  1975年   71篇
  1974年   64篇
  1973年   57篇
  1972年   54篇
  1971年   54篇
  1967年   60篇
排序方式: 共有6059条查询结果,搜索用时 0 毫秒
141.
Romanians suffered incredible deprivations of every sort during the decades of Communist dictatorship. Most of the country’s 1,000 psychiatrists, and most of their patients, were victimized by the political system. A few psychiatrists actively engaged in practices amounting to torture. Many, however, became willing or unwilling participants in the political abuse of their profession. Such political abuses were fostered by abusive legislation and abusive law enforcement by the secret police. Abuses included: mass detentions in psychiatric hospitals of dissidents and political undesirables; abusive interpretation of the laws in detaining persons not suffering from mental illness; false, politically motivated diagnoses and treatment; and detention in secret facilities. While there are honest efforts to come to grips with the past, to compensate victims of psychiatric abuse, and to institute proceedings against abusers, there is also much resistance to reform. Reform-minded Romanian psychiatrists deserve the support of their western colleagues in the effort to restore Romanian psychiatry. In particular, professional colleagues all over the world are asked to comment on the draft law currently pending before the Romanian parliament, which is intended to restore the rule of law to the practice of psychiatry in Romania. Report of a consultative mission to Bucharest, on behalf of the Geneva Initiave on Psychiatry, 7 June to 12 June 1992, by Nanci Adler, Historian-Sovietologist, Geneva Initiative on Psychiatry, Amsterdam, The Netherlands; G.O.W. Mueller, Distinguished Professor of Criminal Justice, Rutgers — The State University of New Jersey, U.S.A.; Mohammed Ayat, Professor of Criminology and Penal Law, Université de Fes, Faculté des Sciences Juridiques, Economiques et Sociales, FEs, Morocco. The Geneva Initiative on Psychiatry is a nongovernmental, nonprofit organization, dedicated to the introduction and preservation of ethical practices in the psychiatric profession, in accordance with medical ethics, the Universal Declaration of Human Rights, and U.N. standards and guidelines. Headquartered in Amsterdam, the organization is currently providing technical and financial assistance to the newly established free, independent, democratic psychiatric associations in Russia, Ukraine, Romania, and other countries. The General Secretary of the organization is Robert van Voren; the board is composed of professionals from some twenty countries. This article was based on meetings at governmental and parliamentary offices, nongovernmental organizations, and embassies as well psychiatric institutions with, among others, the following persons: Dr. Lucian Alexandrescu, V-P Radu Ciuceanu, Mr. Comsa, Proc. Gen’l. Ulpiu Cereceanu, Mr. Nistor Cristea, Mr. Dinu Ianculescu, Prof. Dr. George Ionescu, Miss Cristina Luzoscu, Dr. Zaharia Nicolae, Mr. Iancu Petrescu, Dr. Dan Prelipcianu, Min. Mircea Ionescu-Quintus, Dr. Aurel Romila, Av. Nicolae Stefanescu-Draganesti, Dir. Dr. Tomescu, Dr. Alexandru Trifan, Dr. Valeriu Tuculescu, and numerous victims, diplomats, and Romanian citizens.  相似文献   
142.
We used delayed multiple-baseline and multiple-probe techniques to assess the effects of self-evaluation training on the legibility of cursive handwriting. Five secondary special education students with difficult-to-read handwriting served as participants. All participants improved the legibility of their handwriting during self-evaluation training. A systematic withdrawal of the training package demonstrated maintenance of treatment effects. For the most part, the students' handwriting remained at least 90% legible to judges following the systematic withdrawal of the self-evaluation training.  相似文献   
143.
144.
An X Windows software tool for the construction of faces with a weighted combination of eigenvectors is described. The eigenvectors were extracted from an autoassociative matrix that comprised 100 face images. The program input consists of eigenvectors and sets of weights that describe individual faces and combines these to create face images. The tool creates a panel of buttons that permits the display of individual eigenvectors and the display of an average face as well. Facilities for on-line changes to the intensity of individual eigenvectors can be used to change the appearance of a face. Previously, O’Toole, Abdi, Deffenbacher, and Bartlett (1991) have shown that the intensity of certain individual eigenvectors contains reliable information for determining the sex and race of the face.  相似文献   
145.
146.
This paper reports on the reliability of children's responses on the Child and Adolescent Services Assessment (CASA) — a self-report instrument for use with 8– to 18-year-olds that gathers information about services used to address mental health problems. Findings were based on interviews completed by 77 children at a one week test-retest interval. Results showed that reports of lifetime service use were as reliable as were reports of service use in the preceding three months. Children reported restrictive and intrusive services more reliably than services that were provided in their natural environment. Reliability appeared to be associated more strongly with characteristics of the type of service than with characteristics of the child. Children also could report reliably on some details about their encounters with service providers (e.g., length of stay, number of visits, and onset of service use).  相似文献   
147.
Shaping and fading techniques were employed to replace written instructions used in computerized behavioral tests. Apple Macintosh computers and HyperCard with Pascal extensions were chosen as the development environment to implement the new techniques. Initial Findings demonstrate the effectiveness and relative efficiency of shaping techniques to teach correct performance on the Symbol-Digit Test.  相似文献   
148.
We investigated the ability to match finger orientation to the direction of the axis of rotation in structure-from-motion displays. Preliminary experiments verified that subjects could accurately use the index finger to report direction. The remainder of the experiments studied the perception of the axis of rotation from full rotations of a group of discrete points, the profiles of a rotating ellipsoid, and two views of a group of discrete points. Subjects’ responses were analyzed by decomposing the pointing responses into their slant and tilt components. Overall, the results indicated that subjects were sensitive to both slant and tilt. However, when the axis of rotation was near the viewing direction, subjects had difficulty reporting tilt with profiles and two views and showed a large bias in their slant judgments with two views and full rotations. These results are not entirely consistent with theoretical predictions. The results, particularly for two views, suggest that additional constraints are used by humans in the recovery of structure from motion.  相似文献   
149.
Background and objective: The intracarotid amobarbital procedure, or Wada test, is the method of choice to determine hemispheric representation of language, and is routinely used in the presurgical evaluation for intractable epilepsy. Some investigators perform comprehensive language assessments, but others base language lateralization solely on speech arrest. This study sought to determine whether speech arrest alone during Wada testing provides valid data regarding language lateralization. Methods: The subjects (previously reported) were 21 patients evaluated for intractable epilepsy, who underwent language lateralization by Wada testing and functional MRI (FMRI). For each patient, language representation was determined by calculating: (1) a Wada laterality index based exclusively on speech arrest; (2) a Wada laterality index based on comprehensive language assessment; and (3) an FMRI laterality quotient. Correlation coefficients and categorical classifications were analyzed. Results: There was no significant correlation between the Wada laterality quotient derived from duration of speech arrest and either the comprehensive Wada language laterality score (r= .35,p= .12) or FMRI language laterality score (r= .32,p= .16). Categorical classification as left, right or bilateral language also showed marked discordance between speech arrest and the other two methods. Conclusion: Duration of speech arrest during Wada testing is not a valid measure of language dominance.  相似文献   
150.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号