全文获取类型
收费全文 | 603篇 |
免费 | 16篇 |
专业分类
619篇 |
出版年
2022年 | 1篇 |
2021年 | 1篇 |
2020年 | 14篇 |
2019年 | 10篇 |
2018年 | 12篇 |
2017年 | 14篇 |
2016年 | 16篇 |
2015年 | 15篇 |
2014年 | 6篇 |
2013年 | 48篇 |
2012年 | 26篇 |
2011年 | 27篇 |
2010年 | 17篇 |
2009年 | 12篇 |
2008年 | 24篇 |
2007年 | 31篇 |
2006年 | 38篇 |
2005年 | 26篇 |
2004年 | 22篇 |
2003年 | 23篇 |
2002年 | 24篇 |
2001年 | 13篇 |
2000年 | 17篇 |
1999年 | 19篇 |
1998年 | 12篇 |
1997年 | 10篇 |
1996年 | 16篇 |
1995年 | 11篇 |
1994年 | 6篇 |
1993年 | 8篇 |
1992年 | 10篇 |
1991年 | 4篇 |
1990年 | 5篇 |
1989年 | 3篇 |
1988年 | 7篇 |
1987年 | 3篇 |
1986年 | 6篇 |
1985年 | 13篇 |
1984年 | 7篇 |
1983年 | 11篇 |
1982年 | 5篇 |
1981年 | 8篇 |
1980年 | 6篇 |
1979年 | 3篇 |
1978年 | 5篇 |
1977年 | 1篇 |
1976年 | 1篇 |
1975年 | 2篇 |
排序方式: 共有619条查询结果,搜索用时 15 毫秒
41.
Debra A. Pinals M.D. Paul S. Appelbaum M.D. Richard Bonnie J.D. Carl E. Fisher M.D. Liza H. Gold M.D. Li-Wen Lee M.D. 《Behavioral sciences & the law》2015,33(2-3):195-198
The American Psychiatric Association, (“APA”), with more than 36,000 members at present, is the Nation's leading organization of physicians who specialize in psychiatry. APA provides for education and advocacy and develops policy through Position Statements. It promotes enhanced knowledge of particular topics relevant to psychiatric practice and patient care through Resource Documents. Since 1993, the APA has developed various positions and resource materials related to firearms and mental illness, incorporating evolving themes as new issues emerge. This paper reflects the APA's 2014 Position Statement on Firearm Access, Acts of Violence and the Relationship to Mental Illness and Mental Health Services. 相似文献
42.
43.
The nature of the relationship between the concepts of space and time in the human mind is much debated. Some claim that space is primary and that it structures time (cf. Lakoff & Johnson, 1980) while others (cf. Walsh, 2003) maintain no difference in status between them. Using fully immersive virtual reality (VR), we examined the influence of object distance and time of appearance on choice of demonstratives (this and that) to refer to objects. Critically, demonstratives can be used spatially (this/that red triangle) and temporally (this/that month). Experiment 1 showed a pattern of demonstrative usage in VR that is consistent with results found in real‐world studies. Experiments 2, 3, and 4 manipulated both when and where objects appeared, providing scenarios where participants were free to use demonstratives in either a temporal or spatial sense. Although we find evidence for time of presentation affecting object mention, the experiments found that demonstrative choice was affected only by distance. These results support the view that spatial uses of demonstratives are privileged over temporal uses. 相似文献
44.
Wetcher-Hendricks D 《心理学方法》2006,11(2):207-215
With respect to the often-present covariance between error terms of correlated variables, D. W. Zimmerman and R. H. Williams's (1977) adjusted correction for attenuation estimates the strength of the pairwise correlation between true scores without assuming independence of error scores. This article focuses on the derivation and analysis of formulas that perform the same function for partial and part correlation coefficients. Values produced by these formulas lie closer to the actual true-score coefficient than do the observed-score coefficients or those obtained by using C. Spearman's (1904) correction for attenuation. The new versions of the formulas thus allow analysts to use hypothetical values for error-score correlations to estimate values for the partial and part correlations between true scores while disregarding the independence-of-errors assumption. 相似文献
45.
The relationship of locus of control to depression, anxiety, hostility, and physical health was assessed in a sample of multicultural
college students (N = 162). Powerful Others Health Locus of Control was correlated with depression, anxiety, hostility, and
recent physical symptoms while Chance Health Locus of Control (CHLC) was correlated with all of the above as well as chronic
physical symptoms and major health problems. When controlling for a variety of health risk factors (viz., age, sex, body mass,
exercise, smoking, salt, alcohol, and caffeine), only CHLC remained significant in the physical health models. Results support
the cognitive model of mental health which emphasize the importance of adaptive beliefs. Specifically, they suggest that issues
about control are related to negative affect and indicate that the often-cited relationship of an external locus of control
to depression and anxiety also holds for hostility. The findings do not, however, support the view that anxiety and depression
are associated with different types of external locus of control but rather suggest a unified set of locus of control beliefs
underlying the three types of negative affect. In addition, evidence is provided for the external validity of the Multidimensional
Health Locus of Control (MHLC) Scales with respect to mental health. Further, the results indicate that belief about one’s
health may play a significant role in one’s physical health and that the health behavior model of the relationship between
locus of control and physical health is insufficient to explain the relationship. As the Chance and Powerful Others MHLC scales
were not related to health habits in this sample but were related to mental health (viz., depression, anxiety, and hostility),
locus of control beliefs may be related to physical health via their relationship with mental health. 相似文献
46.
Infant bilingualism offers a unique opportunity to study the relative effects of language experience and maturation on brain development, with each child serving as his or her own control. Event-related potentials (ERPs) to words were examined in 19- to 22-month-old English-Spanish bilingual toddlers. The children's dominant vs. nondominant languages elicited different patterns of neural activity in the lateral asymmetry of an early positive component (P100), and the latencies and distributions of ERP differences to known vs. unknown words from 200-400 and 400-600 ms. ERP effects also differed for 'high' and 'low' vocabulary groups based on total conceptual vocabulary scores. The results indicate that the organization of language-relevant brain activity is linked to experience with language rather than brain maturation. 相似文献
47.
School psychologists are typically itinerant among multiple schools and often spend up to two-thirds of their time on assessment activities related to students with disabilities and special education programs. School psychologists in delivery of an expanded role service model are assigned to a single school and provide more consultation and intervention services. 97 school psychologists assigned to an expanded role in a single southeastern urban school district were surveyed on their job roles and job satisfaction. The majority were satisfied or very satisfied with their jobs, particularly with engaging in activities that were of service to others and staying involved in a variety of job activities. School psychologists wanted to spend less time in assessment, multidisciplinary team meetings, and administrative duties. The discrepancy between the desired and actual amount of time spent in multidisciplinary meetings was negatively related to job satisfaction. Psychologists wanted to spend more time in direct and indirect intervention, professional development, and networking. 相似文献
48.
49.
Younger and older African American and Caucasian American adults, who were matched by age (M age = 40.63 years), completed a survey on perceptions of aging and subjective age. The 2 groups did not differ in the age they considered someone to be old (M age = 74.5 years). However, when asked which age was the happiest age, African Americans chose a significantly younger age (M age = 18.26 years) than did Caucasian Americans (M age = 31.32 years), and this racial group difference interacted with age differences such that older Caucasian Americans named an older age than did younger Caucasian Americans. The authors found no such age difference for African Americans. When asked if old age was a happy time, 60% of Caucasian Americans answered yes, whereas only 2% of African Americans answered yes. These and other differences in images and concerns of old age and subjective age suggest a far more negative view of aging for African Americans and a need for changes in the provision of positive information about aging for this group. 相似文献
50.
The Thurstone Verbal Fluency Test, Vandenberg Mental Rotation Test, and NEO-FFI personality test were administered to 182 university participants (126 female, 56 male). The men scored higher than the women on the spatial test, and the women scored higher than the men for the verbal fluency test, as reported by others. Women reported more extraversion and agreeableness than men. Extraversion was correlated with verbal fluency for both sexes. For the men, verbal fluency was also positively associated with agreeableness, and for the women, verbal fluency was associated with openness and conscientiousness. No relationships between personality and spatial ability were found. Thus, the relationships between cognitive variables and personality factors differed between the sexes. These findings are discussed in terms of the common frontal neural substrate of verbal fluency and these aspects of personality, as well as the inherently social nature of language as a communication tool. 相似文献