全文获取类型
收费全文 | 580篇 |
免费 | 47篇 |
国内免费 | 18篇 |
出版年
2024年 | 2篇 |
2023年 | 16篇 |
2022年 | 8篇 |
2021年 | 12篇 |
2020年 | 29篇 |
2019年 | 30篇 |
2018年 | 15篇 |
2017年 | 24篇 |
2016年 | 17篇 |
2015年 | 13篇 |
2014年 | 19篇 |
2013年 | 52篇 |
2012年 | 5篇 |
2011年 | 13篇 |
2010年 | 11篇 |
2009年 | 11篇 |
2008年 | 33篇 |
2007年 | 41篇 |
2006年 | 32篇 |
2005年 | 41篇 |
2004年 | 25篇 |
2003年 | 29篇 |
2002年 | 28篇 |
2001年 | 11篇 |
2000年 | 29篇 |
1999年 | 19篇 |
1998年 | 18篇 |
1997年 | 7篇 |
1996年 | 12篇 |
1995年 | 17篇 |
1994年 | 6篇 |
1993年 | 4篇 |
1992年 | 3篇 |
1991年 | 5篇 |
1990年 | 2篇 |
1989年 | 2篇 |
1988年 | 1篇 |
1987年 | 2篇 |
1984年 | 1篇 |
排序方式: 共有645条查询结果,搜索用时 15 毫秒
441.
The ideal of scientific openness — i.e. the idea that scientific information should be freely accessible to interested parties — is strongly supported throughout the scientific community. At the same time, however, this ideal does not appear to be absolute in the everyday practice of science. In order to get the credit for new scientific advances, scientists often keep information to themselves. Also, it is common practice to withhold information obtained in commissioned research when the scientist has agreed with his or her employer to do so. The secrecy may be intended for ever, as in the military area, but also temporarily until a patent application has been made. The paper explores to what extent such secrecy is undesirable, as seems to be suggested by the ideal of scientific openness. Should this ideal be interpreted as having certain exceptions which make the above-mentioned practices acceptable? Are there, on closer inspection, good arguments for the ideal of scientific openness, and for officially upholding it? Possible versions of the ideal of scientific openness are explored and the issue is found to be rather complex, allowing for wide variations depending on the acting parties, beneficiaries, types of information and moral requirements involved. We conclude that the arguments usually given in favour of this ideal are weaker than what seems to be generally believed, and that, on closer inspection, they leave plenty of room for exceptions to it. These exceptions only partly cover the actual practice of withholding scientific information, and there may still be good reason to advocate, teach and enforce the ideal of scientific openness within the scientific community. 相似文献
442.
Neuropsychological rehabilitation after acquired brain injury is an important contribution to our health-care system. Despite a growing database which supports its clinical utility, the insurance coverage for this form of care is now being threatened. This paper addresses some of the professional and scientific issues that psychologists need to face in order to continue to provide these services.Invited Address, President's Mini-Convention To Your Health: Psychology Through the Life Span, American Psychological Association Convention, New York, August 12, 1995. 相似文献
443.
444.
445.
446.
Thomas L. Gilbert 《Zygon》1992,27(2):211-220
Abstract. Klink rejects the use of ecological models in environmental decision making because their predictions cannot be tested by rigorous scientific methods. I argue that models that cannot be tested according to the rigorous standards of the physical sciences can still be considered “scientific”; they are useful (and, in practice, used) for assessing the impacts of human actions on the environment and choosing between alternative courses of action. It is, however, important to be aware of the uncertainties and to make corrections as new data and insights become available. The interplay between (1) model-based decisions and action and (2) their consequences and subsequent corrections can be regarded as a dialogue between humans and nature (or God) in the sense proposed by Klink. Klink also claims that future actions should be informed by the larger vision of theology and should not be based on science. I suggest that science has an indispensible role. The larger vision is needed to respond to the fundamental religious question: How should I live—and why? But this question cannot be answered without first addressing the fundamental scientific question: How does the world work? I suggest that responses to the first question can be formulated as visions of a future state of existence that we feel compelled to strive to realize, and that science is necessary to provide “maps of reality” needed to realize visions. I also suggest that Christian traditions can probably provide adequate visions; the crucial need is for improving our “maps of reality.” 相似文献
447.
Ernan Mc Mullin 《Zygon》1993,28(3):299-335
Abstract. The logical relationships between the ideas of evolution and of special creation are explored here in the context of a recent paper by Alvin Plantinga claiming that from the perspective of biblical religion it is more likely than not that God acted in a "special" way at certain crucial moments in the long process whereby life developed on earth. I argue against this thesis, asking first under what circumstances the Bible might be thought relevant to an issue of broadly scientific concern. I go on to outline some of the arguments supporting the thesis of common ancestry, and argue finally that from the theistic perspective, special creation ought to be regarded as, if anything, less rather than more likely than its evolutionary alternative. 相似文献
448.
Frank M. Gresham Kristin A. Gansle George H. Noell 《Journal of applied behavior analysis》1993,26(2):257-263
Functional analysis of behavior depends upon accurate measurement of both independent and dependent variables. Quantifiable and controllable operations that demonstrate these functional relationships are necessary for a science of human behavior. Failure to implement independent variables with integrity threatens the internal and external validity of experiments. A review of all applied behavior analysis studies with children as subjects that have been published in the Journal of Applied Behavior Analysis between 1980 and 1990 found that approximately 16% of these studies measured the accuracy of independent variable implementation. Two thirds of these studies did not operationally define the components of the independent variable. Specific recommendations for improving the accuracy of independent variable implementation and for defining independent variables are discussed. 相似文献
449.
James W. McAllister 《Journal for General Philosophy of Science》1991,22(1):1-14
Almost all commentators acknowledge that among the grounds on which scientists perform theory-choices are criteria of simplicity. In general, simplicity is regarded either as only a logico-empirical quality of a theory, diagnostic of the theory's future predictive success, or as a purely aesthetic or otherwise extra-empirical property of it. This paper attempts to demonstrate that the simplicity-criteria applied in scientific practice include both a logicoempirical and a quasi-aesthetic criterion: to conflate these in an account of scientists' theory-choice is to court confusion. 相似文献
450.
John Kekes 《Argumentation》1995,9(4):577-594
The paper examines one implication of pluralism, the view that all values are conditional and none are overriding. This implication is that since scientific knowledge is one of the conditional values, there are circumstances in which the pursuit of even the most basic scientific knowledge is legitimately curtailed. These circumstances occur when the pursuit of scientific knowledge conflicts with moral and political values which, in that context, are more important than it. The argument focuses on the case for and against space exploration in search of intelligent extraterrestrial life. The widely held supposition that search for pure scientific knowledge cannot be reasonably curtailed is identified as the fallacy of overriding values. 相似文献