首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1811篇
  免费   97篇
  国内免费   1篇
  2023年   17篇
  2021年   16篇
  2020年   24篇
  2019年   39篇
  2018年   49篇
  2017年   45篇
  2016年   64篇
  2015年   25篇
  2014年   34篇
  2013年   163篇
  2012年   76篇
  2011年   70篇
  2010年   37篇
  2009年   41篇
  2008年   88篇
  2007年   63篇
  2006年   57篇
  2005年   54篇
  2004年   64篇
  2003年   43篇
  2002年   43篇
  2001年   35篇
  2000年   31篇
  1999年   29篇
  1998年   19篇
  1997年   41篇
  1996年   21篇
  1995年   22篇
  1994年   22篇
  1992年   26篇
  1991年   19篇
  1990年   15篇
  1989年   16篇
  1988年   27篇
  1987年   27篇
  1986年   15篇
  1985年   19篇
  1984年   26篇
  1983年   19篇
  1982年   22篇
  1981年   23篇
  1979年   16篇
  1978年   18篇
  1976年   23篇
  1975年   24篇
  1974年   21篇
  1973年   22篇
  1972年   19篇
  1971年   25篇
  1970年   16篇
排序方式: 共有1909条查询结果,搜索用时 15 毫秒
41.
Children, 4-5 and 9-10 years old, and college-age adults were tested on two visual masking tasks. The first task required the Ss to identify whether a tachistoscopically presented bar was horizontal or vertical The second task, also using tachistoscopic presentation of stimuli, required Ss to locate a horizontal (or vertical) bar in a matrix of vertical (or horizontal) bars. In both tasks, backward masking produced greater disruption than did forward masking, and the amount of disruption induced by both backward and forward masking decreased as age increased. An Age by Masking Condition interaction was found only in the location task and reflected a much greater difference between backward- and forward-masking conditions for the youngest group than for the older groups. On the basis of these findings and other considerations, it was concluded that only in the location task, which presumably required visual search, was the speed of visual processing slower in the younger group.  相似文献   
42.
43.
44.
In a booth designed especially for work with both autistic and electively mute children, a 4-yr-old girl named Dolly, who had no communicative speech or imitative skills, was given a preliminary session in which her verbal output was assessed. To elicit sounds from Dolly, an instrument called a “color organ” was used as a positive reinforcer. After this baseline assessment, in 40 half-hour sessions, Dolly was taught to make eye contact with E, and to obey instructions—although it was first necessary to extinguish her disruptive behavior, particularly her opérant crying. In addition, she learned non-verbal imitative behavior, such as hand clapping; and verbal imitative behavior, such as saying “Hi!” Social (play) sessions were begun after session 21, and continued for the remaining time. These were helpful in generalizing Dolly's learned skills to an environment other than the booth; and to other tasks, such as singing “Ee-eye-ee-eye-oh” in the refrain of the song, “Old McDonald”; and pointing to E's eyes, saying “ice”.  相似文献   
45.
46.
47.
Three inexpensive text-to-speech synthesizers are described, intelligibility data from a pilot experiment are reported, and software is offered that has been written to facilitate the phonemic programming of the Heathkit-Votrax synthesizer.  相似文献   
48.
49.
50.
Dona L. Davis 《Sex roles》1993,29(7-8):457-475
In the traditional Newfoundland maritime division of labor, men worked at sea on boats and women worked on the land in their households. Patterns of gender identity, work, and gender relations were characterized by an ethos of complementarity. Present declines in the fishery make it impossible to earn a living at sea and men have become landbound. The resulting infringement by unemployed men into the spaces and prerogatives traditionally allotted to women has come to generate a gender antagonism that permeates, if not dominates, contemporary gender relations in a southwest coast Newfoundland fishing community. Ethnographic analysis incorporates data collected during two periods of anthropological fieldwork: 1977–1978 and 1989–1990. Comparative assessment of economic, psychological, and cultural constructionist theories of gender relations inform the qualitative analysis of ethnographic data.The original period (1977–1978) of anthropological fieldwork was funded by a grant from the United States National Institute of Child and Maternal Health, which was administered through the Population Center at the University of North Carolina, Chapel Hill. The second period (1989–1990) of fieldwork was funded by grants from Memorial University of Newfoundland's Institute of Social and Economic Research, the Canadian Embassy's Canadian Studies Program, and the University of South Dakota's General Research Fund.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号