全文获取类型
收费全文 | 3687篇 |
免费 | 227篇 |
国内免费 | 2篇 |
专业分类
3916篇 |
出版年
2023年 | 25篇 |
2022年 | 48篇 |
2021年 | 61篇 |
2020年 | 105篇 |
2019年 | 111篇 |
2018年 | 173篇 |
2017年 | 180篇 |
2016年 | 176篇 |
2015年 | 145篇 |
2014年 | 173篇 |
2013年 | 513篇 |
2012年 | 191篇 |
2011年 | 198篇 |
2010年 | 119篇 |
2009年 | 129篇 |
2008年 | 168篇 |
2007年 | 172篇 |
2006年 | 146篇 |
2005年 | 90篇 |
2004年 | 108篇 |
2003年 | 123篇 |
2002年 | 84篇 |
2001年 | 54篇 |
2000年 | 81篇 |
1999年 | 49篇 |
1998年 | 34篇 |
1997年 | 24篇 |
1996年 | 29篇 |
1995年 | 14篇 |
1994年 | 18篇 |
1993年 | 21篇 |
1992年 | 22篇 |
1991年 | 17篇 |
1990年 | 12篇 |
1989年 | 12篇 |
1988年 | 12篇 |
1984年 | 11篇 |
1983年 | 13篇 |
1982年 | 13篇 |
1980年 | 12篇 |
1979年 | 11篇 |
1978年 | 10篇 |
1975年 | 10篇 |
1974年 | 11篇 |
1972年 | 12篇 |
1971年 | 13篇 |
1970年 | 15篇 |
1969年 | 10篇 |
1968年 | 12篇 |
1966年 | 11篇 |
排序方式: 共有3916条查询结果,搜索用时 15 毫秒
1.
2.
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
3.
4.
5.
Sören Stenlund 《Synthese》1989,79(1):51-98
The work on this paper was done in the research project V
ra begrepp om spr
k supported byHumanistisk-samhälls-vetenskapliga forskningsr
det. I am indebted to Per Martin-Löf, Hans Ruin, Pär Segerdahl, and Sven Öhman for valuable comments on a previous version of this paper. Thanks to the comments of the anonymous referee I was able to improve some formulations in the paper. 相似文献
6.
The relationship between recognition and cued recall in memory of enacted and nonenacted information
Summary An experiment was conducted to determine whether the processes underlying memory for enacted and nonenacted events are the same or different. The experimental paradigm used was that of recognition failure of recallable information. At study subjects were given verbal commands (e.g., break the match, roll the ball), that they were to remember or enact and remember. At test subjects were first asked to recognize the noun in each command in the absence of the verb and then to recall the noun with the verb present as cue. Half the subjects were given the two tests in the reverse order. The results demonstrate that enactment and nonenactment differ with respect to the degree of dependence/independence between recognition and recall. In the enactment condition recognition and cued recall are completely independent and in the nonenactment condition they are almost completely dependent. 相似文献
7.
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
8.
9.
Lars-Göran Nilsson 《Psychological research》1987,49(2-3):183-188
Summary Three experiments are reported to test a claim by previous subjects that lack of motivation for performing well in memory experiments yielded less than optimal performance. In each experiment the subjects of one group were informed of monetary incentives prior to study; in a second group they were informed of these incentives after study but prior to the test; no mention of incentives was made to the subjects of a third group. Recall and recognition procedures were used to assess memory performance. The data of all three experiments demonstrated no differences between the three groups with respect to performance. The claim that subjects in regular memory experiments would typically perform less than optimally is thus rejected. Subjective reports, however, revealed that incentives had affected the amount of effort put into the memory tasks. This dissociation between performance data and subjective reports is discussed in relation to the concept of motivation. 相似文献
10.