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   2668篇
  免费   365篇
  国内免费   395篇
  2024年   10篇
  2023年   83篇
  2022年   53篇
  2021年   74篇
  2020年   152篇
  2019年   174篇
  2018年   184篇
  2017年   178篇
  2016年   176篇
  2015年   116篇
  2014年   113篇
  2013年   461篇
  2012年   94篇
  2011年   90篇
  2010年   73篇
  2009年   114篇
  2008年   99篇
  2007年   140篇
  2006年   154篇
  2005年   155篇
  2004年   113篇
  2003年   95篇
  2002年   80篇
  2001年   73篇
  2000年   52篇
  1999年   47篇
  1998年   44篇
  1997年   36篇
  1996年   31篇
  1995年   25篇
  1994年   29篇
  1993年   14篇
  1992年   27篇
  1991年   6篇
  1990年   9篇
  1989年   8篇
  1988年   6篇
  1987年   4篇
  1986年   1篇
  1985年   6篇
  1984年   7篇
  1982年   4篇
  1981年   1篇
  1980年   5篇
  1979年   8篇
  1978年   1篇
  1976年   3篇
排序方式: 共有3428条查询结果,搜索用时 15 毫秒
181.
Using data from three samples and more than 1000 participants, this study have examined the psychometric properties of the Driver Behaviour Questionnaire (DBQ) in three countries from South-East Europe. Differences in driving behaviour between countries were also investigated. Exploratory factor analysis results supported the distinction between errors and violations in all three countries. Furthermore, the positive associations of both errors and violations with self-reported traffic accidents were also consistent in all three samples. In terms of differences in driving behaviour, Romanian drivers scored higher on many error and violation items in comparison to the other two countries. Also, speeding violations were the most common violations in all three countries. Overall, our results provide further support for using the DBQ to measure aberrant (i.e. errors and violations) driver behaviour.  相似文献   
182.
Collecting samples is a challenging task for face recognition, especially for some real-world applications such as law enhancement and ID card identification, where there is usually single sample per person (SSPS) used to train a face recognition system. To extract discriminative features from the small size samples, in this paper we propose virtual samples via bidirectional feature selection with global and local structure preservation (VS-BFS-GL) to augment the number of training samples. In VS-BFS-GL, bidirectional feature selection is developed, which introduces L2,1 norm to explore the face variations from both horizontal and vertical directions. Further, to include more variations in the virtual images, the global structure information and sample-specified local structure information of the SSPP training set are considered. By integrating bidirectional feature selection, global and local structure, the limited training samples are fully utilized and more knowledge are mined. To further improve the effectiveness of VS-BFS-GL, an auxiliary database containing different face variations can be used to explore the local structure information. We extensively evaluated the proposed approach on AR and FERET database. The promising recognition results demonstrate that VS-BFS-GL is robust to expression, pose and partial occlusion variations in the faces.  相似文献   
183.
The aim of this study was to examine socio-demographic and psychosocial correlates of concurrent tobacco use and risky drinking. We analysed data from the cross-sectional South African National Health and Nutrition Examination Survey (SANHANES-1) 2011–2012. The sample included 14 764 adolescents and adults aged 15 years and older. They responded to questions on tobacco and alcohol use, psychosocial, and socio-demographic indicators. Results indicate that 9.6% (16.8% among men and 3.5% among women) of South Africans were involved in concurrent tobacco use and risky drinking, 18.2% in current tobacco use only, and 20.3% in risky drinking only. In covariate adjusted analysis, being 25 to 64 years, being male, belonging to the coloured population group, residing in urban areas, having experienced three or more traumatic events, and poor self-rated health were associated with concurrent tobacco use and risky drinking. Findings suggest socio-demographic and health factors are important for public health interventions in addressing concurrent tobacco and alcohol use in South Africa.  相似文献   
184.
This article presents an autoethnography in the form of a short story of the experiences of a mental breakdown, and subsequent involuntary detainment, alongside the experiences of conducting PhD research outside the mainstream of the discipline of psychology. In response to criticisms of narrative approaches that they are methodologically solipsistic and present a socially atomised self, this narrative combines patient medical records with narrative recollections and reflections on the research process from a contemporary perspective. In doing so, the narrative explores and interrogates themes relevant to creative practice in psychological research, including the notion of authenticity, methodological issues of researching personal experience, the problem of subjectivity and, ultimately, the nature of madness and psychological distress, including its nonlinearity and otherness.  相似文献   
185.
Increasing numbers of children raised by grandparents are students in schools. Their substitute family structure and precursors to the emergence of this family structure have implications for the children's school performance. Research suggests teachers view these children as at risk for difficult school functioning. The aforementioned judgment is problematic because teacher expectations, attributions, and biases are associated with stereotype threat that impacts student performance adversely. The author compares children raised by grandparents with children raised by parents and foster parents. The author examines the children's perceptions of their teachers' views of their school performance. He also examines the children's general feelings about school. Participants in the study were 6,550 students in Grades 6–8 from the nationally representative Health Behaviour in School-aged Children survey. Nonparametric statistical analyses reveal children raised by grandparents believe teachers' view their school performance negatively when compared with children living with both parents. Strategies are described to improve the children's performance in school and to foster favorable teacher perceptions.  相似文献   
186.
The purpose of this qualitative study is to understand staff members’ and administrators’ perceptions of group-based music therapy in an acute care mental health setting. The researcher conducted semi-structured interviews with six experienced administrators and unit staff who were familiar with music therapy. Using an inductive approach to thematic analysis, the author identified six themes: (a) music constitutes an important role in patients’ lives, (b) patient-centricity and competence of the music therapist, (c) music therapy uniquely engages the patient with music, the music therapist, and peers, (d) music therapy shifts patients’ focus from internal to external, (e) music therapy is a normalizing experience that facilitates interaction, and (f) music therapy provides optimal conditions for cognitive, affective, and behavioral change. Implications for clinical practice, suggestions for future research, and limitations of the study are provided.  相似文献   
187.
目的:探讨适应性自恋与病理性自恋对个体心理健康的不同影响。方法:750名大学生完成了一套由自恋人格问卷(NPI)、病理性自恋量表(PNI)和症状自评量表(SCL-90)组成的测验。利用结构方程模型对变量间的关系进行分析。结果表明:病理性自恋的二阶因子自恋易损性对个体心理健康具有显著的负向预测作用,自恋易损性水平越高,个体心理健康水平越低。自恋夸大性和适应性自恋(自恋人格问卷,NPI)对心理健康的正向预测作用达到边缘显著,自恋夸大性和适应性自恋得分越高,心理健康水平越高。结论:病理性自恋的二阶因子自恋易损性对心理健康具有明显的破坏作用,而自恋夸大性和正常/适应性自恋可能对心理健康存在微弱的保护作用。  相似文献   
188.
Many individuals who have mental disorders often report negative experiences of a distinctively epistemic sort, such as not being listened to, not being taken seriously, or not being considered credible because of their psychiatric conditions. In an attempt to articulate and interpret these reports we present Fricker’s concepts of epistemic injustice (Fricker, 2007, p. 1) and then focus on testimonial injustice and hermeneutic injustice as it applies to individuals with mental disorders. The clinical impact of these concepts on quality of care is discussed. Within the clinical domain, we contrast epistemic injustice with epistemic privilege and authority. We then argue that testimonial and hermeneutic injustices also affect individuals with mental disorders not only when communicating with their caregivers but also in the social context as they attempt to reintegrate into the general society and assume responsibilities as productive citizens. Following the trend of the movement of mental health care to the community, the testimonies of people with mental disorders should not be restricted to issues involving their own personal mental states.  相似文献   
189.
190.
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