全文获取类型
收费全文 | 175559篇 |
免费 | 7761篇 |
国内免费 | 163篇 |
专业分类
183483篇 |
出版年
2021年 | 1510篇 |
2020年 | 2786篇 |
2019年 | 3439篇 |
2018年 | 3584篇 |
2017年 | 4024篇 |
2016年 | 4664篇 |
2015年 | 3917篇 |
2014年 | 4801篇 |
2013年 | 23441篇 |
2012年 | 4766篇 |
2011年 | 3827篇 |
2010年 | 3979篇 |
2009年 | 4789篇 |
2008年 | 4039篇 |
2007年 | 3619篇 |
2006年 | 4163篇 |
2005年 | 4106篇 |
2004年 | 3593篇 |
2003年 | 3207篇 |
2002年 | 3026篇 |
2001年 | 3368篇 |
2000年 | 3204篇 |
1999年 | 3217篇 |
1998年 | 2812篇 |
1997年 | 2652篇 |
1996年 | 2563篇 |
1995年 | 2432篇 |
1994年 | 2376篇 |
1993年 | 2335篇 |
1992年 | 2682篇 |
1991年 | 2476篇 |
1990年 | 2376篇 |
1989年 | 2255篇 |
1988年 | 2250篇 |
1987年 | 2257篇 |
1986年 | 2219篇 |
1985年 | 2407篇 |
1984年 | 2533篇 |
1983年 | 2326篇 |
1982年 | 2367篇 |
1981年 | 2336篇 |
1980年 | 2190篇 |
1979年 | 2253篇 |
1978年 | 2191篇 |
1977年 | 2146篇 |
1976年 | 1957篇 |
1975年 | 2031篇 |
1974年 | 2082篇 |
1973年 | 1981篇 |
1972年 | 1530篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
961.
Pretense, Autism, and the Theory-of-Mind Module 总被引:1,自引:0,他引:1
Alan M. Leslie 《Current directions in psychological science》1992,1(1):18-18
962.
963.
964.
965.
966.
967.
968.
969.
John R. Beech 《Current psychology (New Brunswick, N.J.)》1992,11(2):164-181
This study primarily investigated various aspects of phonemic processing and memory in relation to reading in 74 5- and 6-year-old
British children. A principal components analysis revealed a major connection between reading and aspects of phonemic processing
for both age groups. For the 5-year-olds the processing of the initial phoneme was important for reading, whereas for the
6-year-olds processing of initial and final phonemes appeared to be equally related on this factor. A second factor for both
groups was intelligence, which was related to reading only for the 6-year-olds; but this intelligence factor was more associated
with phonemic processing for the 5-year-olds. An analysis involving clustering individual readers with similar patterns across
the experimental variables showed some consistent profiles for disabled readers across the two age groups. These profiles
suggested potential areas for remediation according to subgroup membership. 相似文献
970.
P. A. Hancock M. Vercruyssen G. J. Rodenburg 《Current psychology (New Brunswick, N.J.)》1992,11(3):203-225
Two experiments are reported which investigated how subject gender and time-of-day influenced the estimation of duration and
the perception of task-related mental workload. In the first experiment, 24 subjects performed a filled time-estimation task
in a constant blacked-out, noise-reduced environment at 0800h, 1200h, 1600h, and 2000h, respectively. In the second experiment,
12 different subjects performed an unfilled time estimation task in similar conditions at 0900h, 1400h, and 1900h. At the
termination of all experimental sessions, participants completed the NASA Task Load Index workload assessment questionnaire
as a measure of perceived mental workload. Results indicated that physiological response, reflected in body temperature change,
followed an expected pattern of sequential increase with time-of-day. However, estimates of duration and the perception of
mental workload showed no significant effects for time-of-day. In each of the experiments there were significant differences
in time estimation and mental workload response contingent on the gender of the participant. These results are interpreted
in light of the previous positive findings for circadian fluctuation in performance efficiency and the equivocal findings
of a gender difference in time estimation. A unifying account of these collective results is given based on gender by time-of-day
interactional effects.
An earlier version of this paper was presented at the 32nd Annual Meeting of the Human Factors Society, Anaheim, CA, October,
1988. 相似文献