全文获取类型
收费全文 | 1417篇 |
免费 | 58篇 |
专业分类
1475篇 |
出版年
2022年 | 9篇 |
2021年 | 11篇 |
2020年 | 35篇 |
2019年 | 30篇 |
2018年 | 31篇 |
2017年 | 53篇 |
2016年 | 41篇 |
2015年 | 30篇 |
2014年 | 34篇 |
2013年 | 182篇 |
2012年 | 71篇 |
2011年 | 73篇 |
2010年 | 47篇 |
2009年 | 36篇 |
2008年 | 53篇 |
2007年 | 44篇 |
2006年 | 59篇 |
2005年 | 55篇 |
2004年 | 43篇 |
2003年 | 53篇 |
2002年 | 42篇 |
2001年 | 23篇 |
2000年 | 36篇 |
1999年 | 26篇 |
1998年 | 25篇 |
1997年 | 20篇 |
1996年 | 17篇 |
1995年 | 18篇 |
1994年 | 20篇 |
1993年 | 18篇 |
1992年 | 12篇 |
1991年 | 26篇 |
1990年 | 12篇 |
1989年 | 18篇 |
1988年 | 9篇 |
1987年 | 9篇 |
1986年 | 8篇 |
1985年 | 9篇 |
1984年 | 12篇 |
1983年 | 16篇 |
1982年 | 16篇 |
1981年 | 11篇 |
1980年 | 8篇 |
1979年 | 14篇 |
1978年 | 11篇 |
1977年 | 8篇 |
1976年 | 12篇 |
1975年 | 7篇 |
1974年 | 3篇 |
1969年 | 3篇 |
排序方式: 共有1475条查询结果,搜索用时 0 毫秒
71.
Maienschein J 《The American journal of bioethics : AJOB》2002,2(1):12-9, 30
In 2001, the U.S. House of Representatives passed the "Human Cloning Prohibition Act" and President Bush announced his decision to allow only limited research on existing stem cell lines but not on "embryos." In contrast, the U.K. has explicitly authorized "therapeutic cloning." Much more will be said about bioethical, legal, and social implications, but subtleties of the science and careful definitions of terms have received much less consideration. Legislators and reporters struggle to discuss "cloning," "pluripotency," "stem cells," and "embryos," and whether "adult" are preferable to "embryonic" stem cells as research subjects. They profess to abhor "copying humans" or "killing embryos." Do they know what they are talking about? Do we? This paper explores the historical, philosophical, and scientific contexts that inform this heated discussion. 相似文献
72.
Hoi K. Suen Patrick S. C. Lee Jane E. Prochnow-LaGrow 《Journal of psychopathology and behavioral assessment》1985,7(3):277-287
The meaning and properties of a commonly used index of reliability, S/L,were examined critically. It was found that the index does not reflect any conventional concept of reliability. When used for an identical behavioral observation session, it is not statistically correlated with other reliability indices. Within an observation session, the standardizing measure of Lis beyond the control of the investigator. Furthermore, the reason for the choice of Las the standard is unclear. The role of chance agreement in S/Lis not known. The exact interpretation of the index depends on which observer reports L.Overall the conceptual and mathematical meaning of S/Lis dubious. It is suggested that the S/Lindex should not be used until its nature is shown to be a measure of reliability. Other approaches such as the intraclass correlations and generalizability coefficients should be used instead.The authors are indebted to Johnny Matson for his critique of an earlier version of this paper. 相似文献
73.
This research examined the creative writing of 180 elementary school children for evidence of sex difference and sex-role perceptions. Stories were analyzed for frequency of male and female characters, attributes, and roles. Writers were equally divided by sex and into three age groups—grades 1–2, 3–4, and 5–6. Results suggest that the total number of characters, roles, and attributes was equivalent. However, the distribution of male and female characters, roles, and attributes differed with male and female writers. Female writers included significantly more female characters and assigned more attributes and roles to these characters. Nevertheless, in the stories of both male and female writers, there was a predominance of male characters and assignment of attributes and roles to male characters. The findings support the development and implementation of a nonsexist curriculum. 相似文献
74.
A Dialectical Behavior Therapy Skills training manual (DBT Skills) was adapted for use with caregivers of individuals with dementia. Implementation occurred in a community clinic with a heterogeneous caregiver group at risk for elder abuse. Sixteen caregivers completed the 9-week group. The results point to improved psychosocial adjustment, particularly increased problem-focused coping, enhanced emotional well-being, and less fatigue. Caregivers tended to utilize individual therapeutic services at a higher rate during the period of group attendance, indicative of appropriate help-seeking behavior in highly demanding situations. Six of the 16 caregivers repeated the training sequence in “booster” groups. Follow-up data from the booster groups suggest that high-risk caregivers may require continuing support to maintain treatment gains. In addition to demonstrating the feasibility of DBT Skills with caregivers, the results warrant a controlled outcome evaluation. 相似文献
75.
Research indicates that information received from feedback seeking is valuable for both individual and organizational outcomes. Previous research examining the feedback seeking process has consistently suggested that individual's feedback behaviors are directly influenced by three motives. Specifically, individuals are instrumentally motivated to obtain valued information but are also motivated to protect and/or enhance their ego and to protect others' impressions of them (Ashford, Blatt and VandeWalle, 2003). The current study simultaneously examined these motives by testing the interactive effects of them on feedback seeking behavior. As predicted, they did significantly interact and the results present a deeper understanding of these motives and how employees weigh various factors in deciding whether to seek feedback within the organization. 相似文献
76.
Randolph W. Parks Daniel S. Levine Debra L. Long David J. Crockett Irene E. Dalton Herbert Weingartner Paul Fedio Kerry L. Coburn Gil Siler Jane R. Matthews Robert E. Becker 《Neuropsychology review》1992,3(2):213-233
Neural networks can be used as a tool in the explanation of neuropsychological data. Using the Hebbian Learning Rule and other such principles as competition and modifiable interlevel feedback, researchers have successfully modeled a widely used neuropsychological test, the Wisconsin Card Sorting Test. One of these models is reviewed here and extended to a qualitative analysis of how verbal fluency might be modeled, which demonstrates the importance of accounting for the attentional components of both tests. Difficulties remain in programming sequential cognitive processes within a parallel distributed processing (PDP) framework and integrating exceedingly complex neuropsychological tests such as Proverbs. PDP neural network methodology offers neuropsychologists co-validation procedures within narrowly defined areas of reliability and validity. 相似文献
77.
Jane Garner 《Psychoanalytic Psychotherapy》2013,27(2):211-219
This response to the report by lawyer Robert Francis into the failure of National Health Service (NHS) care in Mid-Staffordshire is fairly positive about its conclusions but points out that without consideration of personal, psychosocial factors in care, on the ward, in the institution things are unlikely to improve, the report leaves much unconsidered. Francis emphasises that patient care is at the very centre of the NHS, this is obvious but so often forgotten. He comments that the unhelpful blame culture still exists. Missing from Francis’ analysis is a psychological perspective – the systemic factors he mentions are administrative not relational. This response is an attempt to redress the balance in thinking about the improvement of care for patients and of the working lives of staff. 相似文献
78.
Rachel Jane Rahman Cecilie Thogersen-Ntoumani Joanne Thatcher Jonathan Doust 《Psychology & health》2013,28(11):1521-1539
Employing Self-Determination Theory (Deci & Ryan, 1985) as a theoretical framework, this study examined psychological need satisfaction and motivational regulations as predictors of psychological and behavioural outcomes in exercise referral (ER). ER patients (N?=?293; mean age 54.49) completed the measures of motivational regulations, psychological need satisfaction, health-related quality of life, life satisfaction, anxiety, depression and physical activity at entry, exit and 6 months following the end of a supervised exercise programme. Change in (Δ) intrinsic motivation during the scheme significantly predicted adherence and Δ habitual physical activity. Δ psychological need satisfaction from entry to exit significantly predicted Δ habitual physical activity from exit to 6-month follow-up. Δ psychological need satisfaction significantly predicted Δ motivational regulation and Δ psychological outcomes. Contrary to expectations, Δ self-determined regulation did not significantly predict Δ psychological outcomes during the structured part of the scheme, however, it did significantly predict Δ in psychological outcomes from exit to 6-month follow-up. These findings expand on cross-sectional research to demonstrate that psychological need satisfaction during supervised ER longitudinally predicts motivational regulation and psychological outcomes up to 6 months after a structured programme. 相似文献
79.
Abstract This study was carried out to assess the psychological impact of abnormal cervical smear results. Existing literature contain only uncontrolled studies or controlled studies with non-standardised measures. Subjects were recruited from women attending two general practices for routine cervical smears over a six month period. A comparison was made between women with positive results who were referred for colposcopy, with mild abnormalities who were asked to return for a repeat smear in six months, or negative smear results. Psychometric assessment by postal questionnaire was carried out one week after receiving the result. The measures used were the 28-item General Health Questionnaire (GHQ-28), Spielberger State Anxiety (STAI), and a measure designed specifically for use in the study, the Cervical Screening Questionnaire (CSQ). Results indicated that women with positive smear test results who were referred for colposcopy had significantly higher scores on GHQ (p<.01) STAI-S (p<.05) and CSQ (p<.001) than women with mild abnormalities or negative results. Significant differences between the groups with mild abnormalities and negative results were found on the CSQ (p<.05). These findings suggest that positive results on cervical screening are associated with a significant psychological impact including a range of specific concerns about gynaecological health and cancer, increased anxiety and impaired well-being. Even mildly abnormal results, which involve a recommendation for early repeat screening, cause raised concern about cancer for the recipients. The procedures for providing smear results should be organised to minimise the level of distress. 相似文献
80.
Romila Singh Nadya A. Fouad Mary E. Fitzpatrick Jane P. Liu Kevin J. Cappaert Catia Figuereido 《Journal of Vocational Behavior》2013,83(3):281-294
This investigation adapts and extends the Social Cognitive Career Theory (SCCT) by integrating it with central constructs from turnover theory. The extended model proposes that domain specific self-efficacy and outcome expectations predict job satisfaction and organizational commitment — the two key job attitudes that have been established as influential predictors of turnover cognitions and behaviors. Further, we proposed that one form of organizational supports, specifically developmental opportunities at work, are sources of self efficacy and outcome expectations, and that the relationship between organizational supports and job attitudes is mediated by self-efficacy and outcome expectations. The proposed model was tested on a national sample of 2,042 women engineers. Overall, the results provided support for our newly developed model. Implications for theory, research, and practice are discussed. 相似文献