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   1032篇
  免费   70篇
  2023年   8篇
  2022年   14篇
  2021年   19篇
  2020年   27篇
  2019年   44篇
  2018年   33篇
  2017年   51篇
  2016年   44篇
  2015年   39篇
  2014年   39篇
  2013年   159篇
  2012年   53篇
  2011年   46篇
  2010年   46篇
  2009年   38篇
  2008年   41篇
  2007年   29篇
  2006年   33篇
  2005年   34篇
  2004年   28篇
  2003年   32篇
  2002年   25篇
  2001年   8篇
  2000年   12篇
  1999年   22篇
  1998年   19篇
  1997年   16篇
  1996年   15篇
  1995年   7篇
  1994年   5篇
  1993年   9篇
  1992年   10篇
  1990年   3篇
  1989年   9篇
  1988年   3篇
  1987年   6篇
  1986年   8篇
  1985年   9篇
  1984年   3篇
  1983年   4篇
  1982年   7篇
  1981年   3篇
  1979年   3篇
  1978年   3篇
  1977年   5篇
  1976年   4篇
  1974年   3篇
  1973年   4篇
  1970年   3篇
  1967年   2篇
排序方式: 共有1102条查询结果,搜索用时 15 毫秒
891.
To investigate the impact of the microdeletion on morphology of the prefrontal cortex in 22q11.2 Deletion Syndrome (22q11.2 DS), high-resolution, anatomic magnetic resonance imaging was performed on 19 children and adolescents with 22q11.2 DS (11 females, 8 males) and 18 unaffected controls (10 females, 8 males). Tissue volumes of the dorsolateral, dorsomedial, orbitolateral, and orbitomedial prefrontal cortex were measured. Tasks of executive function and working memory were administered to investigate the association between anatomy and function. Whole brain volume and frontal lobe tissue volume were preserved in girls but reduced in boys with 22q11.2 DS relative to age-matched controls. Dorsolateral prefrontal cortex (DLPFC) volumes were reduced in participants with 22q11.2 DS, although the gender-by-diagnosis effect found for frontal lobe was not as robust for DLPFC. DLPFC volumes were associated with performance on tasks of planning and emotional facial recognition. Longitudinal studies are needed to clarify whether gender differences in frontal lobe and DLPFC persist with development, and whether the volumes of the DLPFC are associated with eventual deterioration in adaptive/psychosocial function that may presage the onset of schizophrenia, for which individuals with 22q11.2 DS are at a disproportionately high risk.  相似文献   
892.
893.
Since stereotypes about people with acquired brain injury (ABI) can lead to prejudice, studying these stereotypes is highly important. In two studies, we examined these stereotypes both on idiosyncratic dimensions and on the two dimensions of the Stereotype Content Model. Participants completed a specific questionnaire about ABI and warmth and competence questionnaires regarding people with ABI and other social groups. Specific stereotypes about ABI were found to be underpinned by dimensions of “cognitive impairments and ADL limitations,” “catastrophic outcomes,” and “personal and interpersonal development.” Within the model, people with ABI were seen as being warm but incompetent. The ambivalent ABI stereotype could elicit prejudicial attitudes that may impede rehabilitation.  相似文献   
894.
Research has shown the stigma attached to mental disabilities, yet little research has directly compared the experiences of people with physical disabilities and those with mental disabilities. Not only are both conditions likely perceived as stigmatizing, but the pervasive use of mobile technology may be one means by which people with disabilities can manage and understand their disability. Four hundred and eighty-seven individuals with physical and/or psychological disabilities completed a survey examining whether they would be willing to use mobile technology to manage their disability and how stigmatizing they perceived their disability to be. Willingness to use mobile technology was related to the age of the sample as well as the type of disability. Individuals with psychological disabilities were more likely to use certain forms of mobile technology relative to those with physical disabilities. Observed differences between physical and psychological disabilities are discussed in terms of the symbolic interaction stigma model.  相似文献   
895.
896.
A long‐standing challenge in community‐based participatory research (CBPR) has been to anchor practice and evaluation in a relevant and comprehensive theoretical framework of community change. This study describes the development of a multidimensional conceptual framework that builds on social movement theories to identify key components of CBPR processes. Framework synthesis was used as a general literature search and analysis strategy. An initial conceptual framework was developed from the theoretical literature on social movement. A literature search performed to identify illustrative CBPR projects yielded 635 potentially relevant documents, from which eight projects (corresponding to 58 publications) were retained after record and full‐text screening. Framework synthesis was used to code and organize data from these projects, ultimately providing a refined framework. The final conceptual framework maps key concepts of CBPR mobilization processes, such as the pivotal role of the partnership; resources and opportunities as necessary components feeding the partnership's development; the importance of framing processes; and a tight alignment between the cause (partnership's goal), the collective action strategy, and the system changes targeted. The revised framework provides a context‐specific model to generate a new, innovative understanding of CBPR mobilization processes, drawing on existing theoretical foundations.  相似文献   
897.
898.

Purpose

The purpose of this study was to investigate organizational and occupational homogeneity, compare homogeneity at different levels of composition, and uncover a mechanism for homogeneity.

Design/Methodology/Approach

Data were obtained from an archival data base of current employees (N = 23,933) in 40 organizations, 19 major job groupings, 42 minor job groupings, and 115 detailed job titles.

Findings

Support for homogeneity within organizations and occupations was found, regardless of the granularity with which occupation were defined. Homogeneity estimates were smaller than prior estimates in the literature based on smaller, less diverse samples. Occupational homogeneity was significantly greater than homogeneity at the organizational level for neuroticism and extraversion. As a potential mechanism, we demonstrated that occupational interest could predict personality at the occupational level.

Implications

Investigating homogeneity effects with a large, representative sample and simultaneously considering occupation and organization helps to advance our theoretical understanding of the Attraction–Selection–Attrition process. This study provides evidence of relative homogeneity effects and mechanisms. Such knowledge could help inform the selection, training, and socialization tactics employed by practitioners.

Originality/Value

Little is currently known about how within-occupation homogeneity in personality relates to within-organization homogeneity, or the influence of vocational interests on such homogeneity. We provide a methodological update to decompose and compare organizational and occupational influence on personality homogeneity. We also assess homogeneity at three levels of occupational granularity, and delineate a mechanism for personality to become homogeneous at the occupation level.
  相似文献   
899.
In this study, we investigated the influence of children’s level of executive functioning on two types of metamemory knowledge following a traumatic brain injury (TBI). For this purpose, 22 children (aged 7 to 14 years) who had sustained a moderate to severe TBI and 44 typically developing children were recruited. The children with TBI were divided into two groups according to the severity of their executive impairment. Injury severity was determined by the Glasgow Coma Scale (GCS) score on admission or by the duration of unconsciousness. All children were then tested on both their knowledge of general memory functioning and their level of memory self-awareness, respectively assessed using the total number of correct responses on an adapted version of a metamemory interview and a self-other discrepancy score on a questionnaire evaluating everyday memory abilities. Data analyses revealed that participants with TBI who suffered impaired executive functions demonstrated less general metamemory knowledge, and underestimated the frequency of their memory problems, compared with children with TBI who had preserved executive functions and with control participants. Considering the well-established effect of metamemory knowledge on people’s spontaneous implementation of strategies, the interest and the importance of these findings on both theoretical and clinical grounds are discussed.  相似文献   
900.
The prevalence of implicit intergroup bias in adults underscores the importance of knowing when during development such biases are most amenable to change. Although research suggests that implicit intergroup bias undergoes little change across development, no studies have directly examined whether developmental differences exist in the capacity for novel implicit associations to form or change. The present study examined this issue among children ages 5–12. Results from over 800 children provided evidence that novel implicit associations formed quickly, regardless of child age, association type (evaluative or non‐evaluative) or the target of the association (social or non‐social). Moreover, the magnitude of these changes was comparable across conditions. Coupled with similar findings among adults, these data underscore the importance of first impressions in shaping implicit intergroup bias and provide further evidence that the acquisition of implicit associations is governed by a domain‐general mechanism that may be fully in place by age 5.  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