全文获取类型
收费全文 | 339篇 |
免费 | 6篇 |
出版年
2022年 | 10篇 |
2021年 | 9篇 |
2020年 | 6篇 |
2019年 | 13篇 |
2018年 | 10篇 |
2017年 | 13篇 |
2016年 | 14篇 |
2015年 | 6篇 |
2014年 | 8篇 |
2013年 | 26篇 |
2012年 | 6篇 |
2011年 | 10篇 |
2010年 | 6篇 |
2009年 | 7篇 |
2008年 | 3篇 |
2007年 | 6篇 |
2005年 | 6篇 |
2004年 | 6篇 |
2003年 | 7篇 |
1998年 | 3篇 |
1997年 | 3篇 |
1995年 | 4篇 |
1994年 | 4篇 |
1993年 | 4篇 |
1990年 | 5篇 |
1989年 | 9篇 |
1983年 | 3篇 |
1982年 | 5篇 |
1981年 | 5篇 |
1977年 | 3篇 |
1976年 | 2篇 |
1975年 | 2篇 |
1974年 | 4篇 |
1973年 | 6篇 |
1972年 | 3篇 |
1970年 | 7篇 |
1969年 | 4篇 |
1968年 | 4篇 |
1967年 | 7篇 |
1966年 | 6篇 |
1965年 | 9篇 |
1964年 | 3篇 |
1963年 | 6篇 |
1962年 | 4篇 |
1961年 | 10篇 |
1960年 | 6篇 |
1958年 | 7篇 |
1957年 | 4篇 |
1956年 | 4篇 |
1955年 | 6篇 |
排序方式: 共有345条查询结果,搜索用时 15 毫秒
1.
2.
R F?tzsch R Podemski A Brzecki R Bogdańska 《Psychiatrie, Neurologie, und medizinische Psychologie》1986,38(9):518-525
Twenty six clinically healthy smokers were studied with transient pattern visual-evoked potentials. In comparison with a sample of "normal" subjects we found a difference of some parameters (P less than 0.05): the P2-latency and the interocular difference of latency on average were 6-7 ms respectively 2 ms larger. Thirteen subjects have had a prolonged P2-latency (P less than 0.05) and/or a difference in interocular latencies larger than 5 ms. These findings may suggest on subclinical disturbances of visual system and indicators of an special sensitivity of that person. The findings are possibly related to tobacco-alcohol amblyopia. 相似文献
3.
4.
5.
The problems we deal with concern reasoning about incomplete knowledge. Knowledge is understood as ability of an ideal rational agent to make decisions about pieces of information. The formalisms we are particularly interested in are Moore's autoepistemic logic (AEL) and its variant, the logic of acceptance and rejection (AEL2). It is well-known that AEL may be seen as the nonmonotonic KD45 modal logic. The aim is to give an appropriate modal formalization for AEL2. 相似文献
6.
The limited capacity theory assumes that working memory (WM) has limited capacity to process information and, at the same time, to store other pieces of information, necessary for further processing. Quick processing of data is supposed to be the only way to solve the task without the risk of losing vital pieces of information. We predicted, then, that the correlation between mental speed, measured by reaction time (RT), and the intelligence quotient (IQ) should not appear in the case of persons who possess a relatively capacious WM store, or who show increased retention capability of their WM store. Such persons do not need to be fast, whereas, for people who show poorer indices of capacity or retention capability of WM, mental speed is the only way to tackle a complex and difficult intellectual task. As predicted, the RT/IQ correlation appeared much stronger in the group of subjects characterized by lower retention capability and capacity of WM. 相似文献
7.
Katarzyna Pałasińska 《Studia Logica》1994,53(3):361-372
There are exactly two nonfinitely axiomatizable algebraic matrices with one binary connective o such thatx(yz) is a tautology of . This answers a question asked by W. Rautenberg in [2], P. Wojtylak in [8] and W. Dziobiak in [1]. Since every 2-element matrix can be finitely axiomatized ([3]), the matrices presented here are of the smallest possible size and in some sense are the simplest possible.Presented byWolfgang Rautenberg 相似文献
8.
9.
The intuitionistic consequence operation restricted to the language with (equivalence) and (negation) as the only connectives is axiomatized by means of a finite set of sequential rules of inference.To the memory of Professor Roman Suszko 相似文献
10.