全文获取类型
收费全文 | 370篇 |
免费 | 14篇 |
国内免费 | 53篇 |
出版年
2020年 | 10篇 |
2017年 | 11篇 |
2016年 | 11篇 |
2015年 | 5篇 |
2014年 | 4篇 |
2013年 | 18篇 |
2012年 | 10篇 |
2011年 | 13篇 |
2010年 | 9篇 |
2009年 | 11篇 |
2008年 | 34篇 |
2007年 | 6篇 |
2006年 | 12篇 |
2005年 | 19篇 |
2004年 | 17篇 |
2003年 | 9篇 |
2002年 | 9篇 |
2001年 | 8篇 |
2000年 | 6篇 |
1999年 | 4篇 |
1998年 | 4篇 |
1995年 | 4篇 |
1992年 | 5篇 |
1991年 | 6篇 |
1990年 | 6篇 |
1989年 | 9篇 |
1988年 | 5篇 |
1987年 | 8篇 |
1986年 | 6篇 |
1985年 | 3篇 |
1984年 | 5篇 |
1982年 | 10篇 |
1981年 | 10篇 |
1980年 | 6篇 |
1979年 | 7篇 |
1978年 | 4篇 |
1977年 | 4篇 |
1976年 | 6篇 |
1975年 | 9篇 |
1973年 | 10篇 |
1972年 | 5篇 |
1971年 | 18篇 |
1970年 | 7篇 |
1969年 | 11篇 |
1968年 | 3篇 |
1967年 | 4篇 |
1966年 | 4篇 |
1965年 | 2篇 |
1964年 | 4篇 |
1963年 | 5篇 |
排序方式: 共有437条查询结果,搜索用时 15 毫秒
191.
192.
193.
194.
David J. Llewellyn Fiona E. Matthews The Medical Research Council Cognitive Function Ageing Study 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2013,20(4):433-445
ABSTRACT Analyses incorporating large independent population-based samples and identical measures are needed to investigate recent trends in cognitive function. Nationally representative independent cohorts of community living individuals in England aged 65 years or older from the MRC Cognitive Function and Ageing Study in 1991 (n = 9458) and the English Longitudinal Study of Ageing in 2002 (n = 5196) were compared. East Cambridgeshire participants aged 65–69 years in 1991 (n = 680) were also compared to an independent cohort examined in 1996 (n = 600). Semantic verbal fluency, as measured by the animal naming neuropsychological test, increased by 1.1 extra words a minute in England between 1991 and 2002 (95% CI 0.9, 1.3). A similar increase was also observed in East Cambridgeshire. Levels of semantic verbal fluency appear to have increased in the older English population, which may help to buffer the aging population from future increases in dementia. 相似文献
195.
在维瑟(Albert Visser)的基本命题逻辑(BPL)基础上增加公理(p→q)∨((p→q)→p)得到的逻辑LB相对于弱连通传递框架类是完全的。增加达米特(M.Dummett)公理(p→q)∨(q→p)得到的逻辑LD是不完全的。本文还证明LB具有有穷模型性质,但是不具有两常元性质和析取性质。 相似文献
196.
Adi Da argues that no solutions currently proposed are sufficient to righten the present unsustainable trajectory of life on Earth, because there is no integrated approach to the ordering of society and use of the planet. The presumption of separateness—manifesting collectively as separate “tribes” vying for control—characterizes human affairs, rather than the prior (“a priori”) unity of existence. The struggle for dominance is the “stave in the wheels” of the Earth-system's inherent capacity to self-correct. A new institution, “the Global Cooperative Forum,” is proposed—invoked by “everybody-all-at-once” (a global populace awakened as a single force, capable of cooperatively effecting global change). 相似文献
197.
198.
199.
McMahon RJ Witkiewitz K Kotler JS;Conduct Problems Prevention Research Group 《Journal of abnormal psychology》2010,119(4):752-763
This study investigated the predictive validity of youth callous-unemotional (CU) traits, as measured in early adolescence (Grade 7) by the Antisocial Process Screening Device (APSD; Frick & Hare, 2001), in a longitudinal sample (N = 754). Antisocial outcomes, assessed in adolescence and early adulthood, included self-reported general delinquency from 7th grade through 2 years post-high school, self-reported serious crimes through 2 years post-high school, juvenile and adult arrest records through 1 year post-high school, and antisocial personality disorder symptoms and diagnosis at 2 years post-high school. CU traits measured in 7th grade were highly predictive of 5 of the 6 antisocial outcomes-general delinquency, juvenile and adult arrests, and early adult antisocial personality disorder criterion count and diagnosis-over and above prior and concurrent conduct problem behavior (i.e., criterion counts of oppositional defiant disorder and conduct disorder) and attention-deficit/hyperactivity disorder (criterion count). Incorporating a CU traits specifier for those with a diagnosis of conduct disorder improved the positive prediction of antisocial outcomes, with a very low false-positive rate. There was minimal evidence of moderation by sex, race, or urban/rural status. Urban/rural status moderated one finding, with being from an urban area associated with stronger relations between CU traits and adult arrests. Findings clearly support the inclusion of CU traits as a specifier for the diagnosis of conduct disorder, at least with respect to predictive validity. 相似文献
200.
Chad?Ebesutani Adam?Bernstein Brad?J.?Nakamura Bruce?F.?Chorpita John?R.?Weisz The Research Network on Youth Mental Health 《Journal of abnormal child psychology》2010,38(2):249-260
The Revised Child Anxiety and Depression Scale—Parent Version (RCADS-P) is a 47-item parent-report questionnaire of youth
anxiety and depression, with scales corresponding to the DSM-IV categories of Separation Anxiety Disorder, Social Phobia,
Generalized Anxiety Disorder (GAD), Panic Disorder, Obsessive-Compulsive Disorder, and Major Depressive Disorder (MDD). The
RCADS-P is currently the only parent-report questionnaire that concurrently assesses youth symptomatology of individual anxiety
disorders as well as depression in accordance with DSM-IV nosology. The present study examined the psychometric properties of the RCADS-P in a large (N = 490), clinic-referred sample of youths. The RCADS-P demonstrated favorable psychometric properties, including high internal
consistency, convergent/divergent validity, as well as strong discriminant validity—evidencing an ability to discriminate
between anxiety and depressive disorders, as well as between the targeted anxiety disorders. Support for the DSM-related six-factor
RCADS-P structure was also evidenced. This structure demonstrated superior fit to a recently suggested alternative to the
DSM-IV classification of anxiety and affective disorders—namely, the MDD/GAD “distress” factor. 相似文献