全文获取类型
收费全文 | 2320篇 |
免费 | 158篇 |
国内免费 | 1篇 |
出版年
2023年 | 10篇 |
2022年 | 18篇 |
2021年 | 30篇 |
2020年 | 57篇 |
2019年 | 77篇 |
2018年 | 99篇 |
2017年 | 104篇 |
2016年 | 91篇 |
2015年 | 68篇 |
2014年 | 100篇 |
2013年 | 315篇 |
2012年 | 121篇 |
2011年 | 147篇 |
2010年 | 86篇 |
2009年 | 81篇 |
2008年 | 112篇 |
2007年 | 107篇 |
2006年 | 82篇 |
2005年 | 88篇 |
2004年 | 99篇 |
2003年 | 76篇 |
2002年 | 68篇 |
2001年 | 31篇 |
2000年 | 27篇 |
1999年 | 29篇 |
1998年 | 19篇 |
1997年 | 21篇 |
1996年 | 31篇 |
1995年 | 24篇 |
1994年 | 24篇 |
1993年 | 16篇 |
1992年 | 16篇 |
1991年 | 15篇 |
1990年 | 9篇 |
1989年 | 11篇 |
1988年 | 9篇 |
1987年 | 8篇 |
1986年 | 6篇 |
1985年 | 9篇 |
1984年 | 17篇 |
1983年 | 8篇 |
1982年 | 10篇 |
1981年 | 9篇 |
1980年 | 16篇 |
1979年 | 10篇 |
1978年 | 10篇 |
1977年 | 9篇 |
1975年 | 11篇 |
1973年 | 6篇 |
1969年 | 4篇 |
排序方式: 共有2479条查询结果,搜索用时 31 毫秒
961.
The effects of muscle tension on cerebral circulation in blood-phobic and non-phobic subjects 总被引:1,自引:0,他引:1
Jonathan Foulds Klaus Wiedmann James Patterson Neil Brooks 《Behaviour research and therapy》1990,28(6):481-486
This study aimed to assess whether (1) a muscle tensing procedure which has been found to be useful in the treatment of blood-phobic patients produces an increase in heart rate and cerebral blood flow and (2) whether this increase is greater than that produced by mental effort alone. Subjects were 17 volunteers with a history of fainting in response to blood-injury stimuli, (12 were phobic) and 8 volunteers with no fainting history. They were required to (a) rest, (b) do mental arithmetic, and (c) repeatedly tense and release their arm and leg muscles. It was found that Ss, heart rate and cerebral blood flow velocity were significantly greater during the muscle tensing procedure than during mental arithmetic or resting conditions. The increased cerebral blood flow produced by muscle tensing may enable blood phobic patients to prevent fainting during exposure treatment. 相似文献
962.
963.
Jonathan E. Adler 《Argumentation》1993,7(3):263-272
An epistemic account of fallacies is one which takes it as a necessary condition for a fallacy that it has a tendency to produce false or unwarranted beliefs. The most sophisticated form of this account occurs in an article by Robert J. Fogelin and Timothy J. Duggan (Fallacies,Argumentation 1, 1987, pp. 255–262). I criticize the Fogelin and Duggan proposal, in particular, and epistemic accounts, more generally. Though an epistemic approach is attractive, it enlarges the class of fallacies, beyond what would be permitted by traditional accounts. I also question thenecessity of fallacies leading to unwarranted beliefs. Some fallacies are fallacious due to their expected harm to argument practices. This position touches on a theme in the work of Van Eemeren and Grootendorst, though I criticize their notion of rules of argument as too broad. 相似文献
964.
Functional magnetic resonance imaging (fMRI) allows noninvasive imaging of hemodynamic changes related to neural activity. This technique can be used in single-subject designs and can provide millimeter spatial resolution and temporal resolution in the range of 5–10 sec. This paper provides a brief introduction to MRI techniques and their application to functional neuroimaging, focusing on methodological issues that are of particular concern to psychologists, including methods for presenting computerized stimuli to subjects without disrupting the scanner, experimental design issues, and statistical analysis and image processing procedures. To illustrate methodological issues, recent results from a series of studies looking at the topographic organization of visual cortex are presented. General issues concerning limitations in this technique, future directions in its development, its relationship to other neuroimaging techniques, and the role of functional neuroimaging in psychological research are addressed in the Discussion. 相似文献
965.
J. O. Ramsay 《Psychometrika》1989,54(3):487-499
In very simple test theory models such as the Rasch model, a single parameter is used to represent the ability of any examinee or the difficulty of any item. Simple models such as these provide very important points of departure for more detailed modeling when a substantial amount of data are available, and are themselves of real practical value for small or even medium samples. They can also serve a normative role in test design.As an alternative to the Rasch model, or the Rasch model with a correction for guessing, a simple model is introduced which characterizes strength of response in terms of the ratio of ability and difficulty parameters rather than their difference. This model provides a natural account of guessing, and has other useful things to contribute as well. It also offers an alternative to the Rasch model with the usual correction for guessing. The three models are compared in terms of statistical properties and fits to actual data. The goal of the paper is to widen the range of minimal models available to test analysts.This research was supported by grant AP320 from the Natural Sciences and Engineering Research Council of Canada. The author is grateful for discussions with M. Abrahamowicz, I. Molenaar, D. Thissen, and H. Wainer. 相似文献
966.
967.
This exploratory field study evaluated the impact of a formal return to work program in a hospital setting. Results from a case study suggest that the return to work program reduced the average number of lost work days among injured employees. Implications of these results are discussed and future research is suggested. 相似文献
968.
969.
Jonathan P. Seldin 《Studia Logica》1989,48(2):193-217
The usual rule used to obtain natural deduction formulations of classical logic from intuitionistic logic, namely
is stronger then necessary, and will give classical logic when added to minimal logic. A rule which is precisely strong enough
to give classical logic from intuitionistic logic, and which is thus exactly equivalent to the law of the excluded middle,
is
It is a special case of a version of Peirce's law:
In this paper it is shown how to normalize logics defined using these last two rules. Part I deals with propositional logics
and first order predicate logics. Part II will deal with first order arithmetic and second order logics.
This research was supported in part by grants EQ1648, EQ2908, and CE 110 of the program Fonds pour la Formation de Chercheurs
et l'aide à la Recherche (F.C.A.R.) of the Quèbec Ministry of Education. 相似文献
970.
Vlad Petre Glaveanu Michael Hanchett Hanson John Baer Baptiste Barbot Edward P. Clapp Giovanni Emanuele Corazza Beth Hennessey James C. Kaufman Izabela Lebuda Todd Lubart Alfonso Montuori Ingunn J. Ness Jonathan Plucker Roni Reiter-Palmon Zayda Sierra Dean Keith Simonton Monica Souza Neves-Pereira Robert J. Sternberg 《创造性行为杂志》2020,54(3):741-745
This manifesto, discussed by 20 scholars, representing diverse lines of creativity research, marks a conceptual shift within the field. Socio-cultural approaches have made substantial contributions to the concept of creativity over recent decades and today can provide a set of propositions to guide our understanding of past research and to generate new directions of inquiry and practice. These propositions are urgently needed in response to the transition from the Information Society to the Post-Information Society. Through the propositions outlined here, we aim to build common ground and invite the community of creativity researchers and practitioners to reflect up, study, and cultivate creativity as a socio-cultural phenomenon. 相似文献