全文获取类型
收费全文 | 3108篇 |
免费 | 88篇 |
专业分类
3196篇 |
出版年
2022年 | 23篇 |
2021年 | 49篇 |
2020年 | 56篇 |
2019年 | 74篇 |
2018年 | 100篇 |
2017年 | 108篇 |
2016年 | 134篇 |
2015年 | 86篇 |
2014年 | 92篇 |
2013年 | 328篇 |
2012年 | 169篇 |
2011年 | 158篇 |
2010年 | 88篇 |
2009年 | 93篇 |
2008年 | 116篇 |
2007年 | 107篇 |
2006年 | 97篇 |
2005年 | 69篇 |
2004年 | 83篇 |
2003年 | 73篇 |
2002年 | 71篇 |
2001年 | 63篇 |
2000年 | 47篇 |
1999年 | 44篇 |
1998年 | 32篇 |
1997年 | 24篇 |
1996年 | 23篇 |
1995年 | 21篇 |
1994年 | 27篇 |
1993年 | 26篇 |
1992年 | 31篇 |
1991年 | 34篇 |
1990年 | 27篇 |
1988年 | 22篇 |
1987年 | 23篇 |
1986年 | 26篇 |
1985年 | 28篇 |
1984年 | 30篇 |
1983年 | 26篇 |
1982年 | 27篇 |
1981年 | 25篇 |
1980年 | 22篇 |
1979年 | 37篇 |
1978年 | 27篇 |
1977年 | 22篇 |
1974年 | 31篇 |
1973年 | 25篇 |
1972年 | 24篇 |
1971年 | 26篇 |
1969年 | 20篇 |
排序方式: 共有3196条查询结果,搜索用时 0 毫秒
161.
162.
Kenneth Cohen 《British Journal of Guidance & Counselling》1992,20(1):10-26
Although substantial legal difficulties can face anyone trying to recover compensation from counsellors for breach of their legal duties, such claims can in principle succeed. Counsellors ought to take particular care to provide a physically safe setting for the counselling session. Advice given to the client can lead to liability both to the client and to third parties who may be affected. The impact of the client's actions on third parties can justify, and less often compel, departures from confidentiality. The importance of keeping client records has to be balanced against legal obligations imposed on counsellors in various situations to make such records available for inspection by the client or third parties. 相似文献
163.
164.
People often face preferential decisions under risk. To further our understanding of the cognitive processes underlying these preferential choices, two prominent cognitive models, decision field theory (DFT; Busemeyer & Townsend, 1993 ) and the proportional difference model (PD; González-Vallejo, 2002 ), were rigorously tested against each other. In two consecutive experiments, the participants repeatedly had to choose between monetary gambles. The first experiment provided the reference to estimate the models' free parameters. From these estimations, new gamble pairs were generated for the second experiment such that the two models made maximally divergent predictions. In the first experiment, both models explained the data equally well. However, in the second generalization experiment, the participants' choices were much closer to the predictions of DFT. The results indicate that the stochastic process assumed by DFT, in which evidence in favor of or against each option accumulates over time, described people's choice behavior better than the trade-offs between proportional differences assumed by PD. 相似文献
165.
In three experiments, we investigated metacognitive monitoring in a variant of an A–B A–C learning paradigm in which the repetition of cues, but not targets, led to increasing proactive interference (PI) across trials. Judgments of learning (JOLs) correctly predicted decreases across trials in this paradigm but incorrectly continued to predict decreases on a final release trial in which new cues were introduced and performance consequently increased. Experience with the paradigm did not ameliorate this metacognitive failure (Experiment 3). In addition, JOLs decreased equally for pairs with repeated and with novel cue terms, even though recall of the latter group of items did not decrease across trials (Experiment 2). These results suggest that metacognizers’ naïve theories of remembering and forgetting include a role for global, but not cue-specific, interference. 相似文献
166.
Interest is growing in how information is retained in visual short-term memory (VSTM). We describe an experiment that assesses VSTM within the context of multidimensional signal detection theory. On every trial, participants were presented with a 250-ms display containing four colored shapes. They were then probed 900 ms later with a colored shape and made separate old/new judgments about the color and the shape. In any particular trial, one, both, or neither of the probed features had been presented. Performance differed according to whether both probed features belonged to a single object or to two different objects. When both probed features belonged to the same object, featural retrieval was better than would be predicted by independent feature storage. When both probed features belonged to two different objects, featural retrieval was worse than would be predicted by independent feature storage. We conclude that storage in and retrieval from VSTM operate on the basis of object-based representations. 相似文献
167.
Mark S. Gilzenrat Sander Nieuwenhuis Marieke Jepma Jonathan D. Cohen 《Cognitive, affective & behavioral neuroscience》2010,10(2):252-269
An important dimension of cognitive control is the adaptive regulation of the balance between exploitation (pursuing known
sources of reward) and exploration (seeking new ones) in response to changes in task utility. Recent studies have suggested
that the locus coeruleus-norepinephrine system may play an important role in this function and that pupil diameter can be
used to index locus coeruleus activity. On the basis of this, we reasoned that pupil diameter may correlate closely with control
state and associated changes in behavior. Specifically, we predicted that increases in baseline pupil diameter would be associated
with decreases in task utility and disengagement from the task (exploration), whereas reduced baseline diameter (but increases
in task-evoked dilations) would be associated with task engagement (exploitation). Findings in three experiments were consistent
with these predictions, suggesting that pupillometry may be useful as an index of both control state and, indirectly, locus
coeruleus function. 相似文献
168.
This paper presents the results of the largest Australian pastoral study concerning the perceptions of health care chaplains
about their involvement on hospital research ethics committees (also known in some contexts as institutional ethics committees).
Survey results from over 300 Australian health care chaplains indicated that nearly 90% of chaplains believed there was merit
in chaplains serving on hospital research ethics committees, yet only a minority (22.7%) had ever participated on such committees.
Data from in-depth interviews is also presented exploring the reasons for the lack of participation and the varying opinions
regarding the role, appropriateness, and value of chaplains on ethics committees. Some implications of this study with respect
to chaplaincy, hospital research ethics committees, health care institutions, ecclesiastical institutions, and government
responsibilities are discussed. 相似文献
169.
Part I of this article, published in the March 2010 issue of the Kennedy Institute of Ethics Journal, traces and addresses the provision of unproven stem cell treatments in Russia and India, examines the concept of innovative treatment, and concludes that stronger regulations are needed to protect the health and informed choices of patients. The current paper, Part II, proposes that the regulatory frameworks for the development of safe and efficacious treatments in effect in the United States and the United Kingdom provide examples of strong oversight measures from which countries seeking to obtain international credibility for their biotechnological competence could draw when developing regulations for stem cell treatments. Major sources of information available to persons who consider receiving such unproven treatments are explored in order to understand and address their concerns. The paper concludes with proposed measures to inform those considering the pursuit of unproven stem cell treatments abroad more accurately about their efficacy and safety and provide them with improved medical and social support in their home countries. 相似文献
170.