全文获取类型
收费全文 | 23246篇 |
免费 | 159篇 |
出版年
2023年 | 18篇 |
2021年 | 36篇 |
2020年 | 70篇 |
2019年 | 76篇 |
2018年 | 3553篇 |
2017年 | 2883篇 |
2016年 | 2327篇 |
2015年 | 273篇 |
2014年 | 154篇 |
2013年 | 386篇 |
2012年 | 709篇 |
2011年 | 2497篇 |
2010年 | 2574篇 |
2009年 | 1523篇 |
2008年 | 1809篇 |
2007年 | 2301篇 |
2006年 | 140篇 |
2005年 | 317篇 |
2004年 | 269篇 |
2003年 | 213篇 |
2002年 | 157篇 |
2001年 | 72篇 |
2000年 | 90篇 |
1999年 | 56篇 |
1998年 | 58篇 |
1997年 | 55篇 |
1996年 | 41篇 |
1995年 | 35篇 |
1994年 | 38篇 |
1993年 | 35篇 |
1992年 | 38篇 |
1991年 | 28篇 |
1990年 | 43篇 |
1989年 | 30篇 |
1988年 | 37篇 |
1987年 | 27篇 |
1986年 | 30篇 |
1985年 | 27篇 |
1984年 | 28篇 |
1983年 | 26篇 |
1982年 | 40篇 |
1981年 | 26篇 |
1980年 | 19篇 |
1979年 | 28篇 |
1978年 | 24篇 |
1977年 | 21篇 |
1976年 | 27篇 |
1975年 | 20篇 |
1974年 | 22篇 |
1973年 | 14篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
21.
22.
23.
24.
25.
A theoretical structure for multiattribute decision making is presented, based on a dynamical system for interactions in a neural network incorporating affective and rational variables. This enables modeling of problems that elude two prevailing economic decision theories: subjective expected utility theory and prospect theory. The network is unlike some that fit economic data by choosing optimal weights or coefficients within a predetermined mathematical framework. Rather, the framework itself is based on principles used elsewhere to model many other cognitive and behavioral data, in a manner approximating how humans perform behavioral functions. Different, interconnected modules within the network encode (a) attributes of objects among which choices are made, (b) object categories, (c) and goals of the decision maker. An example is utilized to simulate the actual consumer choice between old and new versions of Coca-Cola. Potential applications are also discussed to market decisions involving negotiations between participants, such as international petroleum traders. 相似文献
26.
27.
28.
Brian Seitz 《Man and World》1993,26(4):443-455
29.
A right-handed man suffered a left parieto-occipital cerebral infarction, causing agraphia with Gerstmann's syndrome but without major aphasia, alexia, or apraxia. Oral spelling was superior to written spelling. Experiments were performed involving (1) analysis of errors in writing, (2) tasks of visual imagery, and (3) identifying letters drawn without leaving a visual trace. The results suggest that the agraphia and Gerstmann's syndrome are due to a dissociation of language skills and visuospatial skills caused by a dominant parieto-occipital lesion. 相似文献
30.
The belief is widely held that humor is related to recovery from, and perhaps an increased resistance to, coronary and other
stress-related diseases. Such generalizations do not typically distinguish between benign and hostile humor. In the present
research, the relationship between a measure of proneness to coronary heart disease (CHD) and appreciation of hostile and
nonhostile humor is examined. In two studies, one with college students and one with patients suffering from CHD, the relationship
between humor preferences and the coronary-prone (Type A) behavior pattern was examined. Each subject was given the Jenkins
Activity Survey as a measure of the coronary-prone personality type, and aggressive and nonaggressive jokes to rate for funniness.
Hostile humor was preferred to nonhostile humor by all groups, but among those suffering from CHD, those who could be classified
as “Type B’s” preferred nonhostile humor. The results indicate that those less prone to CHD appreciate both hostile and nonhostile
humor, while Type A’s seem to enjoy hostile humor only. 相似文献