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   317篇
  免费   21篇
  2023年   2篇
  2022年   2篇
  2021年   5篇
  2020年   11篇
  2019年   11篇
  2018年   15篇
  2017年   13篇
  2016年   9篇
  2015年   4篇
  2014年   7篇
  2013年   32篇
  2012年   30篇
  2011年   18篇
  2010年   13篇
  2009年   10篇
  2008年   21篇
  2007年   17篇
  2006年   15篇
  2005年   22篇
  2004年   14篇
  2003年   9篇
  2002年   13篇
  2001年   7篇
  2000年   2篇
  1999年   5篇
  1998年   2篇
  1997年   3篇
  1996年   4篇
  1995年   1篇
  1994年   5篇
  1992年   1篇
  1990年   2篇
  1989年   1篇
  1988年   1篇
  1986年   1篇
  1983年   1篇
  1982年   1篇
  1981年   2篇
  1977年   1篇
  1976年   1篇
  1975年   1篇
  1972年   1篇
  1968年   1篇
  1966年   1篇
排序方式: 共有338条查询结果,搜索用时 31 毫秒
71.
72.
A 14-item test of Acrobatics and Balance was previously developed to assess gross motor skills of high school physical education students. This study examined the factor structure of an 8-item version of the test based on exploratory and confirmatory factor-analytic techniques. The 8-item short-form of the Acrobatics and Balance test was administered to 334 Italian boys, ages 14 to 16 yr. (M = 15.0, SD= .8), during physical education lessons. The sample was then randomly split into two groups of equal size. Data from Group 1 were subjected to principal components analysis followed by oblimin rotation. Two factors emerged without overlapping items, accounting for 65.6% of variance. Factors included items of Acrobatics and Balance, matching the scales of the whole version of the 14-item test. Confirmatory factor analysis on data from Group 2 confirmed the two factor structure of the 8-item test. The test had a Cronbach coefficient alpha of .84. The Balance and Acrobatics scales had Cronbach alphas of .84 and .78 for Group 1 and of .84 and .77 for Group 2. Findings provided preliminary support for the use of the 8-item test, especially when there is a need to shorten assessment time.  相似文献   
73.
This study seeks information on the mental representation of Verb–Noun (VN) nominal compounds through neuropsychological methods. The lexical retrieval of compound nouns is tested in 30 aphasic patients using a visual confrontation naming task. The target names are VN compounds, Noun–Noun (NN) compounds, and long morphologically simple nouns (LSN). In order to check the ability to produce simple nouns and verbs in the same participants, a further visual confrontation naming task of objects and actions is used. Results of the study confirm that several patients with disproportionate verb deficit are also impaired in naming VN compounds. Data are in favor of a (de)compositional processing of compound words. A further group of patients is selectively more impaired with compound nouns than with comparably long simple nouns, irrespective of their VN or NN morphological structure. It is suggested that this impairment is to be ascribed to a specific disorder in retrieving two different lexemes with a single lexical entry.  相似文献   
74.
The aim of the present study was to test if the nigrostriatal pathway is an essential component for a water maze cued task learning and if it works independently of the hippocampal memory system. This hypothesis was tested using an animal model of Parkinson's disease in which male Wistar rats were lesioned in the substantia nigra pars compacta (SNc) by the intranigral infusion of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), thus causing a partial depletion of striatal dopamine. SNc-lesioned and sham-operated animals were implanted bilaterally with guide cannulae above the dorsal hippocampus in order to be tested after the administration of 0.4 microl 2% lidocaine or saline into this structure. The animals were tested in a spatial or in a cued version of the water maze, memory tasks previously reported to model hippocampal-dependent spatial/relational and striatal-dependent S-R learning, respectively. Hippocampal inactivation, but not SNc lesion, impaired learning and memory in the spatial version of the water maze. An opposite situation was observed with the cued version. No significant interaction was observed between the SNc lesion and hippocampal inactivation conditions affecting scores in the spatial or in the cued version of the water maze. These results suggest that the nigrostriatal pathway is an essential part of the memory system that processes S-R learning and that it works independently of the hippocampal memory system that processes spatial/relational memories.  相似文献   
75.
To assess neuromotor disorders clinicians often rely on rating scales. Unfortunately, these scales lack the sensitivity and accuracy needed to detect the small changes in motor coordination that reflect the clinical progression of the disease on the basis of which treatment programmes can be adjusted. As a contribution to this topic, the present paper proposes a straightforward kinematic and kinetic analysis of reaching movements of patients with cerebellar ataxia in conjunction with a cybernetic interpretation of the data. The aim of the approach is to capture key deficits in the underlying motor control processes. We suggest that cerebellar ataxia may be characterized by defective feedforward control.  相似文献   
76.
This paper explores relationships between basic personality profiles of voters and their political party preferences. The Italian political system has moved recently from previously extreme, ideologically distinctive parties to form complex coalitions varying around more centrist orientations. Significant evidence was found for the utility of the Five-Factor Model of Personality in distinguishing between voters' expressed preferences, even given this greater subtlety in proposed values and agendas. More than 2,000 Italian voters who self-identified as having voted for new center-left or center-right political coalitions differed systematically in predicted directions on several personality dimensions measured by the Big Five Questionnaire. In the context of the model, center-right voters displayed more Energy and slightly more Conscientiousness than center-left voters, whose dominant personality characteristics were Agreeableness (Friendliness) and Openness; Emotional Stability was unrelated to either group. This relationship between individual differences in personality and political preferences was not influenced by the demographic variables of voters' gender, age, or education. Thus, personality dimensions proved to be stronger predictors of political preference than any of these standard predictor variables. Implications are discussed regarding links among personality, persuasion, power, and politics.  相似文献   
77.
We prove decidability for all of the main graded normal logics, by a notion of filtration suitably conceived for this environment.Presented byJan Zygmunt  相似文献   
78.
We generalize a well-knownSmullyan's result, by showing that any two sets of the kindC a = {x/ xa} andC b = {x/ xb} are effectively inseparable (if I b). Then we investigate logical and recursive consequences of this fact (see Introduction).  相似文献   
79.
Human aggression is a complex phenomenon operating at multiple levels. Converging evidence distinguishes ‘hot’ aggression, impulsive and emotionally-centered, from ‘cool’ aggression, cognitively based and instrumental. The correspondence of these aggressive response patterns with individual differences in Propensity toward Aggression was investigated. Our data (from 477 Italian adults) map ten of these aggression indicators into the personality space defined by the Five-Factor Model (FFM) of personality. The quadrant containing most of these variables is defined by Emotional Instability (the negative pole of Emotional Stability) and Hostility (the negative pole of Friendliness). Factor analysis uncovered two factors that accounted for nearly 60 percent of the variance in Propensity toward Aggression: Emotional Responsivity and Positive Evaluation of Violence. Practical implications for issues of health and disease, violence, and interventions for different forms of adults' and children's aggression are outlined.  相似文献   
80.
Philosophical Studies - Priority monism (PM) is roughly the view that the universe is the only fundamental object, that is, a concrete object that does not depend on any other concrete object....  相似文献   
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