全文获取类型
收费全文 | 320篇 |
免费 | 7篇 |
出版年
2024年 | 1篇 |
2023年 | 1篇 |
2022年 | 3篇 |
2021年 | 4篇 |
2020年 | 6篇 |
2019年 | 8篇 |
2018年 | 6篇 |
2017年 | 9篇 |
2016年 | 11篇 |
2015年 | 3篇 |
2014年 | 9篇 |
2013年 | 44篇 |
2012年 | 16篇 |
2011年 | 24篇 |
2010年 | 10篇 |
2009年 | 7篇 |
2008年 | 21篇 |
2007年 | 21篇 |
2006年 | 10篇 |
2005年 | 11篇 |
2004年 | 12篇 |
2003年 | 15篇 |
2002年 | 11篇 |
2001年 | 2篇 |
2000年 | 8篇 |
1999年 | 2篇 |
1998年 | 5篇 |
1997年 | 5篇 |
1996年 | 4篇 |
1995年 | 3篇 |
1993年 | 1篇 |
1992年 | 5篇 |
1991年 | 2篇 |
1989年 | 1篇 |
1987年 | 2篇 |
1985年 | 5篇 |
1984年 | 2篇 |
1983年 | 2篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1980年 | 3篇 |
1979年 | 1篇 |
1976年 | 1篇 |
1975年 | 2篇 |
1973年 | 2篇 |
1968年 | 4篇 |
排序方式: 共有327条查询结果,搜索用时 15 毫秒
261.
262.
The research on commons dilemmas is characterized by innumerable published findings, each standing relatively isolated from the other. To date there is little integration of the findings under a unified concept. The present contribution aims to integrate already existing findings in a general dynamic model of cooperative behavior in resource crises by means of computer simulation. The model postulates that people base their decisions regarding resource use on both ecological and social information. Whether or not ecological or social information will dominate, however, depends on people's social values, attributions, and their perceptions of the state of the resource. The advantage of the simulation method used is that successful integration of the findings can be shown explicitly, as the simulation then replicates the experimental data. With the model presented here, it is also possible to let variables work together whose interaction has not yet been investigated in real experiments. For instance, the simulation model allows us to hypothesize that people, in dependency upon their resource uncertainty and in dependency upon their attributions, utilize a resource completely differently if the resource is in an optimal or sub‐optimal condition. Copyright © 2002 John Wiley & Sons, Ltd. 相似文献
263.
264.
The ability to recognise kin has been demonstrated in several animal species. However, the mechanisms of kin recognition often remain unknown. The most frequently discussed sensory modalities to recognise kin are visual, olfactory and acoustical cues. Three-spined sticklebacks (Gasterosteus aculeatus) are able to differentiate between kin and non-kin when presented visual and olfactory cues combined. To elucidate, which cues they use to recognise kin female sticklebacks were given the choice between two identical computer animations of courting stickleback males. Next to one animation, water conditioned by a brother was added, while near the other, water from an unrelated male was added. In half of the experiments, the brother was familiar while in the other half he was unfamiliar to the female. Both scenarios were carried out with both outbred and inbred fish. The results showed that the females adjusted their choice behaviour according to relatedness. Furthermore, they were able to recognise both familiar as well as unfamiliar brothers. Inbreeding did not affect this ability. Hence, three-spined sticklebacks are able to recognise their relatives using olfactory cues alone. The cognitive mechanisms underlying this ability were independent from familiarity and not impaired by inbreeding. 相似文献
265.
266.
267.
268.
269.
Dutilh Gilles Annis Jeffrey Brown Scott D. Cassey Peter Evans Nathan J. Grasman Raoul P. P. P. Hawkins Guy E. Heathcote Andrew Holmes William R. Krypotos Angelos-Miltiadis Kupitz Colin N. Leite Fábio P. Lerche Veronika Lin Yi-Shin Logan Gordon D. Palmeri Thomas J. Starns Jeffrey J. Trueblood Jennifer S. van Maanen Leendert van Ravenzwaaij Don Vandekerckhove Joachim Visser Ingmar Voss Andreas White Corey N. Wiecki Thomas V. Rieskamp Jörg Donkin Chris 《Psychonomic bulletin & review》2019,26(4):1051-1069
Psychonomic Bulletin & Review - Most data analyses rely on models. To complement statistical models, psychologists have developed cognitive models, which translate observed variables into... 相似文献
270.
Joachim Garstecki 《The Ecumenical review》2019,71(3):371-388
This article is an edited translation of an address given in Erfurt, Germany, on 12 May 2019, to celebrate the 90th birthday of Heino Falcke, dean (provost) of Erfurt from 1973 until his retirement in 1994. Falcke, who was also a member of the working group on Church and Society of the World Council of Churches, played a central role in developing the theological and ethical response of Protestant churches in the German Democratic Republic (GDR) to the threats to peace in a nuclear age. This was expressed in the “renunciation of the spirt, logic, and practice of deterrence.” This article seeks to set out the insights from the peace work and witness of the churches in the GDR against the background of the “world disorder of the 21st century.” 相似文献