全文获取类型
收费全文 | 1226篇 |
免费 | 47篇 |
出版年
2023年 | 9篇 |
2021年 | 8篇 |
2020年 | 22篇 |
2019年 | 26篇 |
2018年 | 47篇 |
2017年 | 33篇 |
2016年 | 33篇 |
2015年 | 17篇 |
2014年 | 40篇 |
2013年 | 176篇 |
2012年 | 45篇 |
2011年 | 54篇 |
2010年 | 39篇 |
2009年 | 43篇 |
2008年 | 43篇 |
2007年 | 42篇 |
2006年 | 47篇 |
2005年 | 36篇 |
2004年 | 49篇 |
2003年 | 44篇 |
2002年 | 36篇 |
2001年 | 13篇 |
2000年 | 18篇 |
1999年 | 14篇 |
1998年 | 23篇 |
1997年 | 19篇 |
1996年 | 19篇 |
1995年 | 14篇 |
1994年 | 10篇 |
1993年 | 20篇 |
1992年 | 13篇 |
1991年 | 14篇 |
1990年 | 11篇 |
1989年 | 7篇 |
1988年 | 9篇 |
1987年 | 16篇 |
1985年 | 18篇 |
1984年 | 16篇 |
1983年 | 7篇 |
1982年 | 7篇 |
1981年 | 13篇 |
1980年 | 13篇 |
1979年 | 5篇 |
1978年 | 9篇 |
1976年 | 12篇 |
1975年 | 6篇 |
1974年 | 7篇 |
1973年 | 5篇 |
1969年 | 4篇 |
1967年 | 4篇 |
排序方式: 共有1273条查询结果,搜索用时 613 毫秒
31.
32.
33.
34.
35.
Ruth Guttman 《Acta psychologica》1978,42(4):293-301
Evidence is presented for the existence of two forms of estimation of numerousness — in addition to subitizing. In the experiment reported here, horizontal rows of 5–8 black dots were subitized, while estimation of 33–89 differed from 10–33 in the structure of intercorrelations between estimates. A three-dimensional space generated by Smallest Space Analysis produced three subsets of intercorrelations among percent absolute errors in estimating dots: 5–8 dots, 10–21 dots, and 33–89 dots. 相似文献
36.
Ruth Marcus 《Psychometrika》1978,43(1):133-139
A general method of devising stepwise multiple testing procedures with fixed experimentwise error is applied to the problem of non-parametric randomized block design with ordered alternatives. In addition, the method is applied to other models with ordered alternatives.The author wishes to thank the referees for helpful suggestions. 相似文献
37.
Cancer is a group of diseases that are complicated by various treatment choices available. Information exchange between a patient and physician is critical in helping people to understand what is happening to them and what options for therapy are recommended and available. When information is not exchanged, information control by one or both of the participants occurs. Information needs to be taken into account by both health care professional and patients in making decisions during the crucial phases of care. The phases of care presented are a diagnosis, treatment, the decision, and a recurrence. Factors that influence effective information exchange among patient-provider systems are discussed. 相似文献
38.
An Ames (1951, Psychological Monographs, 65(1, Whole No. 324)) static trapezoidal window, under monocular view, was used to test young infants' responsiveness to pictorial depth. When adults view this display monocularly with the smaller side of the window rotated toward them, they report that the orientation of the display becomes ambiguous: When the head is moved, the window may appear to be in the fronto-parallel plane or either side may appear closer. The 7-month-olds we tested appeared to experience a similar ambiguity; they reached to the near side of the rotated trapezoidal window with significantly less consistency or directedness than infants in a control group tested with a rotated object that lacked pictorial depth information. When 5-month-olds were tested, however, they reached with equal consistency to the closer side of the trapezoidal window and of the control display, apparently uninfluenced by the pictorial depth information available in the trapezoidal window. Thus, sensitivity to the pictorial information for depth that is present in the trapezoidal window appears to develop after the age of 22 weeks. 相似文献
39.
40.
A 39-year-old female suffered bitemporal infarctions and exhibited an unusual behavioral syndrome of muteness and impaired auditory comprehension, with milder aphasic deficits in reading and writing. The anatomic basis of this modality-selective communication disorder appeared to involve both peripheral perceptual and motor as well as “central” language mechanisms. The patient's ability to communicate was greatly aided by instruction in Amerind and Ameslan Sign Language, in which she learned more than 100 signs. Patients whose acquired language deficits spare modalities of input or output may be ideal candidates for sign language therapy. 相似文献