全文获取类型
收费全文 | 823篇 |
免费 | 17篇 |
出版年
2022年 | 6篇 |
2020年 | 11篇 |
2019年 | 12篇 |
2018年 | 11篇 |
2017年 | 13篇 |
2016年 | 16篇 |
2015年 | 10篇 |
2014年 | 14篇 |
2013年 | 84篇 |
2012年 | 35篇 |
2011年 | 35篇 |
2010年 | 14篇 |
2009年 | 21篇 |
2008年 | 35篇 |
2007年 | 29篇 |
2006年 | 36篇 |
2005年 | 31篇 |
2004年 | 21篇 |
2003年 | 15篇 |
2002年 | 26篇 |
2001年 | 8篇 |
2000年 | 5篇 |
1999年 | 15篇 |
1998年 | 15篇 |
1997年 | 18篇 |
1996年 | 9篇 |
1995年 | 17篇 |
1994年 | 16篇 |
1993年 | 14篇 |
1992年 | 13篇 |
1991年 | 19篇 |
1990年 | 10篇 |
1989年 | 12篇 |
1988年 | 8篇 |
1987年 | 8篇 |
1986年 | 15篇 |
1985年 | 11篇 |
1984年 | 14篇 |
1983年 | 10篇 |
1982年 | 14篇 |
1981年 | 14篇 |
1980年 | 9篇 |
1979年 | 13篇 |
1978年 | 8篇 |
1977年 | 11篇 |
1976年 | 10篇 |
1975年 | 7篇 |
1974年 | 7篇 |
1973年 | 6篇 |
1972年 | 5篇 |
排序方式: 共有840条查询结果,搜索用时 250 毫秒
721.
Sieber JE 《Ethics & behavior》2004,14(4):297-304
The federal regulations of human research were written to permit the use of discretion so that research can fit the circumstances under which it is conducted. For example, the researcher and institutional review board (IRB) could waive or alter some informed consent elements if they deem this the morally and scientifically best way to conduct the research. To do so, however, researchers and IRBs would first have to use mature moral and scientific judgment. They might also have to rely on empirical research to discover the most effective way to act on their moral sense (e.g., to discover how best to approach potential research participants and explain the nature and purpose of the research participation for which they are being recruited, to ensure comprehension and competent decision making). On discovering the most ethical way to proceed, they would then need to look to the federal regulations of human research to discover how to document their decision and justify it within that somewhat flexible regulatory structure. Unfortunately, many IRBs and researchers fail to take these sensible steps to solve ethical problems and proceed immediately to a default requirement of the regulations that places science at odds with the regulations and, ostensibly, with ethics. The following articles in this special issue are about the process of learning to engage in ethical problem solving and using the flexibility permitted by the federal regulations. These articles extricate researchers from the mindset that has gotten them into trouble, and, ideally, provoke them to use mature common sense and moral judgment. 相似文献
722.
Two small-sample tests (proposed by Tate and Clelland and by Chapanis respectively) of hypotheses about the parameters of the multinomial distribution, where
$$f(x|p) = n!\prod\limits_{i = 1}^k {\frac{{p_i^{x_i } }}{{x_i !}}} $$ 相似文献
723.
Muntaner C Van Dussen DJ Li Y Zimmerman S Chung H Benach J 《Psychological reports》2006,98(2):585-601
To investigate the relationships among the nursing home work environment, emotional strain, and depression in Nursing Assistants in Ohio and West Virginia, this cross-sectional study was conducted with 395 Nurse Assistants in 49 nursing homes in Ohio and West Virginia. Organizational attributes were measured independently at the individual and organizational levels. Multilevel modeling techniques were used to analyze the data. Our methods examined nursing home organizational structure (ownership type, managerial style), and work organization (emotional strain) was examined in relation to the prevalence of depression among nursing assistants. Our findings suggest workplace emotional strain and age are associated with increased odds of depression. Implications of our work include that work in nursing homes for the environment it fosters has a strong effect on emotional strain and depression among Nursing Assistants. 相似文献
724.
This study was conducted to estimate the relationship between academic dishonesty and religiosity in a convenient sample of college students. Scores on the Santa Clara Strength of Religious Faith Questionnaire and the Academic Practices Survey were correlated for 70 undergraduate students. Overall, religiosity and academic dishonesty were not significantly related. However, follow-up analyses by sex indicated that this association was significant for women but not men. Research should be conducted to investigate whether this pattern is robust and indicates a differing role for religiosity as a standard for appropriate or inappropriate behavior. 相似文献
725.
Sayette MA Martin CS Hull JG Wertz JM Perrott MA 《Journal of abnormal psychology》2003,112(1):110-118
Most models of craving propose that when cravings are strong, diverse responses--thought to index an underlying craving state--covary. Previous studies provided weak support for this hypothesis. The authors tested whether nicotine deprivation affects degree of covariation across multiple measures related to craving. Heavy and light smokers (N = 127) were exposed to smoking cues while either nicotine deprived or nondeprived. Measures included urge ratings, affective valence, a behavioral choice task assessing perceived reinforcement value of smoking, and smoking-related judgment tasks. Results indicated higher correlations in the nicotine-deprived than in nondeprived group. The measures principally responsible for this effect loaded onto a single common Craving factor for nicotine-deprived but not nondeprived smokers. These findings suggest that, under certain conditions, measures of craving-related processes covary. 相似文献
726.
90 Grade 4 children from upstate New York completed a "what I usually do" questionnaire, reporting on their after-school activities. Contrary to the concerns of some psychologists, there was no evidence that the children were being "hurried" out of childhood or "hot-housed" to develop academic or other excellence. The children's time was largely spent in enjoyable, self-chosen, and nonacademic activities, most often play or television viewing. 相似文献
727.
Abstract - We examined whether a pictorial depth illusion influences the manual pursuit of a moving dot to the same extent that it influences the dot's apparent displacement. Fourteen subjects performed two tasks. In one case, they used their unseen hand to track a dot that moved on an elliptical path. In the other, they first watched the dot move on the same path, and then set an ellipse to match the shape of the dot's path. The illusion influenced the two tasks to the same extent, suggesting that the visual information processing is the same for the two tasks. 相似文献
728.
Liang J Shaw BA Krause NM Bennett JM Blaum C Kobayashi E Fukaya T Sugihara Y Sugisawa H 《Psychology and aging》2003,18(4):684-695
This research aimed to chart the trajectories of functional status in old age in Japan and to assess how self-rated health and cognitive functioning differentiate these trajectories and account for interpersonal differences. Data came from a 5-wave panel study of a national sample of 2,200 Japanese older adults between 1987 and 1999. The sample as a whole showed an accelerated increase in functional limitations with age. approximated by a quadratic function. More important, 3 major trajectories of functional change were identified: (a) minimal functional decrement, (b) early onset of functional impairment. and (c) late onset of functional impairment. These findings may serve as useful benchmarks for observations derived from other developed nations. 相似文献
729.
Lesley J 《Consciousness and cognition》2006,15(3):593-604
This essay discusses how the organisation of mental material within the cognitive system can influence consciousness and awareness, and presents a theory of dissociation based on the premise that awareness is relative, contingent on the activated representation of the ongoing event being linked to the activated self-representation. It allows four possible variations of integration: (i) non-integrated experience--perceptions about an object/event are either not perceived or they remain at the sensory level: traditional dissociative states, amnesia, depersonalisation etc; (ii) variably integrated experience--activation of information of a specific valence about an object blocks activation of information of contrasting valence: splitting; (iii) alternatively integrated experience--experience is integrated into a specific, limited active self-representation: fugue and multiple identity states; (iv) dis-integrated experience-the ongoing experience of innate drives and needs is no longer consistently activated in the core self-representation: repression and isolation. 相似文献
730.
In three experiments rats were given short or long preexposure (4 or 10 sessions) to two compound flavours, AX and BX, according to an intermixed or a blocked schedule. Following preexposure, aversion conditioning trials were given with AX as the conditioned stimulus (CS). In Experiments 1 and 2, retardation and summation tests were then carried out to assess the inhibitory properties of B (an Espinet procedure). In Experiment 3, test trials evaluated generalization from AX to BX (the standard perceptual learning procedure). The results showed that B performed as an inhibitor of the unconditioned stimulus (US; an Espinet effect) only after long intermixed preexposure, whereas a reliable perceptual learning effect was observed both after short and after long preeexposure. The observation that B had no detectable inhibitory properties after short preexposure casts doubt on the suggestion that inhibitory learning is responsible for perceptual learning after brief exposure to AX and BX. 相似文献