全文获取类型
收费全文 | 4138篇 |
免费 | 167篇 |
出版年
2021年 | 34篇 |
2020年 | 63篇 |
2019年 | 80篇 |
2018年 | 117篇 |
2017年 | 117篇 |
2016年 | 106篇 |
2015年 | 110篇 |
2014年 | 105篇 |
2013年 | 433篇 |
2012年 | 168篇 |
2011年 | 180篇 |
2010年 | 116篇 |
2009年 | 116篇 |
2008年 | 170篇 |
2007年 | 161篇 |
2006年 | 164篇 |
2005年 | 145篇 |
2004年 | 149篇 |
2003年 | 143篇 |
2002年 | 146篇 |
2001年 | 70篇 |
2000年 | 66篇 |
1999年 | 80篇 |
1998年 | 71篇 |
1997年 | 76篇 |
1996年 | 66篇 |
1995年 | 45篇 |
1994年 | 61篇 |
1993年 | 69篇 |
1992年 | 33篇 |
1991年 | 37篇 |
1990年 | 44篇 |
1989年 | 41篇 |
1988年 | 36篇 |
1987年 | 45篇 |
1986年 | 42篇 |
1985年 | 49篇 |
1984年 | 45篇 |
1983年 | 45篇 |
1982年 | 52篇 |
1981年 | 44篇 |
1980年 | 44篇 |
1979年 | 38篇 |
1978年 | 32篇 |
1977年 | 36篇 |
1976年 | 32篇 |
1975年 | 29篇 |
1974年 | 20篇 |
1973年 | 19篇 |
1969年 | 15篇 |
排序方式: 共有4305条查询结果,搜索用时 15 毫秒
951.
952.
The American Journal of Psychoanalysis - 相似文献
953.
954.
The design of a rodent running wheel with adjustable drag and ability to measure accurately the direction as well as the speed of running is described. A computer program in the C language enables a single microcomputer to monitor several wheels simultaneously. Drag is conveniently calibrated by the rate of deceleration from 1 revolution per second when no animal is present, and the calibration procedure can also assess the smoothness of the drag mechanism. Results of tests of the setability, repeatablility, and durability of the drag are presented. A method is outlined to determine the physical work required to accelerate the wheel and to maintain its rotation against the frictional drag. 相似文献
955.
Douglas Herrman 《Applied cognitive psychology》1995,9(5):448-449
956.
957.
958.
959.
960.
Charlotte Gutenbrunner Karen Salmon Paul E. Jose 《Journal of abnormal child psychology》2018,46(2):197-208
Research suggests that an overgeneral autobiographical memory style (i.e., retrieval of general memories when instructed to retrieve a specific episodic memory) represents a vulnerability marker for depression. Although adolescence is a period of high risk for the emergence of depression, little research has investigated the associations among overgeneral memory, psychopathology, and risk factors longitudinally in a community sample in this age group. We, therefore, investigated overgeneral memory, psychopathology (depression and anxiety), and rumination (an established risk factor for psychopathology) longitudinally in 269 typically-developing youth (125 females, 144 males) across 3 annual assessment points. We sought to determine whether 1) overgeneral memory would predict psychopathology across the entire sample, and 2) whether associations would vary as a function of longitudinal rumination growth. Across the entire sample, overgeneral memory did not predict psychopathology. For youth who reported elevated, and increasing, patterns of rumination over time, transient relationships between overgeneral memory and subsequent increases in anxiety were found. We conclude that overgeneral memory may represent a vulnerability marker for adverse psychological outcomes only for youth at risk for psychopathology. 相似文献