全文获取类型
收费全文 | 21003篇 |
免费 | 52篇 |
国内免费 | 2篇 |
专业分类
21057篇 |
出版年
2023年 | 7篇 |
2022年 | 6篇 |
2021年 | 14篇 |
2020年 | 24篇 |
2019年 | 43篇 |
2018年 | 3498篇 |
2017年 | 2839篇 |
2016年 | 2257篇 |
2015年 | 218篇 |
2014年 | 96篇 |
2013年 | 147篇 |
2012年 | 589篇 |
2011年 | 2411篇 |
2010年 | 2534篇 |
2009年 | 1494篇 |
2008年 | 1718篇 |
2007年 | 2189篇 |
2006年 | 58篇 |
2005年 | 229篇 |
2004年 | 184篇 |
2003年 | 139篇 |
2002年 | 83篇 |
2001年 | 46篇 |
2000年 | 61篇 |
1999年 | 26篇 |
1998年 | 28篇 |
1997年 | 18篇 |
1996年 | 18篇 |
1995年 | 4篇 |
1994年 | 4篇 |
1993年 | 5篇 |
1992年 | 6篇 |
1990年 | 11篇 |
1989年 | 3篇 |
1988年 | 6篇 |
1986年 | 5篇 |
1985年 | 5篇 |
1983年 | 3篇 |
1980年 | 3篇 |
1978年 | 3篇 |
1974年 | 2篇 |
1973年 | 2篇 |
1971年 | 1篇 |
1970年 | 1篇 |
1969年 | 3篇 |
1968年 | 3篇 |
1967年 | 1篇 |
1962年 | 1篇 |
1961年 | 4篇 |
1955年 | 1篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
11.
12.
This paper gives a method for determining a sample size that will achieve a prespecified bound on confidence interval width for the interrater agreement measure,. The same results can be used when a prespecified power is desired for testing hypotheses about the value of kappa. An example from the literature is used to illustrate the methods proposed here. 相似文献
13.
Knut Erik Tranøy 《Theoretical medicine and bioethics》1988,9(3):337-350
In Norway, by tradition a Lutheran country, the puritan ethics of a “moral minority” has a strong influence on the development and manifestations of medical ethics. Those who exert this influence are found primarily among politicians, the clergy, and, last but certainly not least, among nurses and doctors. The focus of interest is not so much on problems of bioethical moral theory or the teaching of bioethics to students, but very much on attitudes and policies with regard to substantive issues traditionally regarded in Norway as burning bioethical issues, such as: medical research ethics, abortion, prenatal diagnosis, euthanasia, definitions of death, and reproductive technologies. 相似文献
14.
15.
16.
A combined multi-attribute utility and expectancy-value model has repeatedly been found to yield a worse fit to choices than to preference ratings. The present study investigated two possible explanations for this finding. First, people's belief-value structures may change in the choice task as they try to find the best alternative. Second, a difficult choice task may cause the decision maker to use simplifying heuristics. In the first of two experiments, subjective belief-value structures were measured on two occasions separated by about one week. Immediately before the second measurement, different groups of subjects performed a choice task, gave preference ratings, or performed a control task. The results did not support an interpretation of the greater difficulty of predicting choices in terms of changes in belief-value structures. However, the notion of simplifying heuristics received support by the finding that adopting simpler versions of the original model improved the predictions of the choices. In the second experiment, beliefs were measured immediately before or after each of a series of choices or preference ratings. The results indicated that although temporary changes in beliefs may occur, they can hardly provide a full account of the differential predictability of preferences and choices. 相似文献
17.
18.
Erik Goodwyn 《The Journal of analytical psychology》2023,68(1):109-132
Since Jung’s death in 1961, scholars have attempted to integrate growing biological science data into Jungian concepts such as the collective unconscious, instincts and the archetypes. This enterprise has been challenging due to persistent false dichotomies of gene and environment occasionally arising. Recent works by Roesler (2022a, 2022b) for example, have raised objections to the biological theory of archetypes, but the objections are plagued by such dichotomies. The concept of phenotypic plasticity, however, helps to both avoid this problem as well as bridge the gap between competing theories into a more integrated model with solid biological foundations. 相似文献
19.
Harald Merckelbach J. Leon Kenemans Arie Dijkstra Erik Schouten 《Journal of psychopathology and behavioral assessment》1993,15(3):197-206
A number of experiments have shown that (spider) fearful subjects direct their attention to fear-relevant words, even when these words are irrelevant to the completion of a target task (e.g., color naming). The present study examined whether subjects with an intense fear of spiders also display such attentional bias for a fear-relevant pictoral stimulus. Female spider-fearful (n=13) and control subjects (n=13) saw neutral patterns (i.e., horizontal and vertical bars). One pattern served as target for a reaction time, while the other pattern served as nontarget. Targets and nontargets were accompanied by either fear-relevant or neutral pictoral material (i.e., a picture of a spider or a picture of a flower, respectively). The fear-relevant picture did not selectively delibate reaction time performance of spider-fearful subjects. Thus, no evidence was found for an attentional bias for fear-relevant pictoral material in subjects with an intense fear of spiders. Instead, fearful subjects exhibited a general inhibition of performance which became stronger over trials. This suggests that the fear-relevant picture induced a state of anxious arousal or defensive withdrawal that interfered with reaction time performance on both fear-relevant and neutral trials. 相似文献
20.
In the match/mismatch model, recently formulated by Rachman and coworkers, it is stated that incorrectly predicted aversive experiences are generally followed by an immediate adjustment of the predictions concerning aversiveness of the next experience. This model can be considered to reflect a psychological process of the formation of expectations. In the present article it is argued that a simple H0 model, assuming that predictions are completely randomly generated by the subject, may account for the same effects. This H0 model is used in a stringent test of empirical data to determine if there are any effects of the discrepancy between prediction and experience on next prediction that exceed the effects explained by the H0 model. Although the H0 model produces effects very similar to the empirically observed effects, there is clear support for the hypothesized influence of the discrepancy between prediction and experience. Therefore, the model appears to reflect 'real' psychological processes and not chance findings. 相似文献