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   1249篇
  免费   87篇
  2022年   8篇
  2021年   9篇
  2020年   18篇
  2019年   27篇
  2018年   33篇
  2017年   33篇
  2016年   48篇
  2015年   13篇
  2014年   32篇
  2013年   133篇
  2012年   47篇
  2011年   53篇
  2010年   35篇
  2009年   30篇
  2008年   49篇
  2007年   50篇
  2006年   37篇
  2005年   40篇
  2004年   38篇
  2003年   27篇
  2002年   30篇
  2001年   31篇
  2000年   26篇
  1999年   26篇
  1998年   24篇
  1997年   15篇
  1996年   14篇
  1995年   18篇
  1994年   20篇
  1993年   13篇
  1992年   21篇
  1991年   27篇
  1990年   16篇
  1989年   11篇
  1988年   17篇
  1987年   16篇
  1986年   16篇
  1985年   13篇
  1984年   21篇
  1983年   11篇
  1982年   18篇
  1981年   13篇
  1980年   11篇
  1979年   13篇
  1978年   16篇
  1977年   20篇
  1976年   8篇
  1975年   8篇
  1974年   10篇
  1972年   13篇
排序方式: 共有1336条查询结果,搜索用时 0 毫秒
951.
952.
953.
Neurofibromatosis type 1(NF1) is a complex and variable inherited disorder. The complexity and variability present particular difficulty for genetic counseling. Thirty-three people with NF1 of reproductive age were interviewed about their experience of genetic counseling, their past reproductive behavior and future intentions. One third reported having had no genetic counseling or not having it until after their first child. In part, this may be due to delay in diagnosis but also indicates poor access to genetic services. Only three people had ever been offered prenatal genetic testing and only one had accepted. Although testing is still technically difficult, the greatest deterrent to uptake of prenatal testing for NF1 is the variability of the disorder. However, six of the 17 people planning future pregnancies would want a test with a view to termination if necessary. Others would welcome testing in order to be prepared but not to terminate. We discuss some of the factors which influence reproductive decision making for people with NF1 and some of the difficulties in genetic counseling in such a variable and complex disorder.  相似文献   
954.
955.

The present study evaluated the effects of two reinforcement contingencies on teacher use of behavior-specific praise (BSP) in the classroom. An alternating treatments design was used to compare the implementation of both an independent and interdependent contingency to increase frequency of BSP delivery. Four general education elementary school teachers and their students participated. Teachers’ use of BSP and general praise, as well as, behavior-specific and general reprimands were evaluated. Data were also collected on students’ levels of academically engaged and disruptive behaviors. Both the independent and interdependent conditions resulted in higher frequencies of BSP and reduced the use of both general and behavior-specific reprimands. Student levels of academic engagement increased while disruption decreased across both contingencies. Results of the present study are discussed in terms of related literature and implications for applied practice.

  相似文献   
956.
Journal of Psychopathology and Behavioral Assessment - Callous-Unemotional (CU) traits are characterized by limited empathy, lack of guilt, and callous use of others. The Inventory of Callous...  相似文献   
957.
The current study is a systematic replication and extension of work by Schweitzer & Sulzer‐Azaroff (1988). The effects of delay fading alone and in combination with signals on choices between larger, delayed reinforcers and smaller, immediate reinforcers by four children with language deficits were examined. For one of the two children exposed to delay fading alone, larger reinforcers were selected at longer delays relative to the initial self‐control assessment. For all four children, the delay‐fading‐plus‐signal condition resulted in selection of larger reinforcers at considerably longer delays relative to the self‐control assessment.  相似文献   
958.
In June 2015, the U.S. Department of the Treasury announced that a woman would replace Hamilton on the $10 bill. In April 2016, it announced that Harriet Tubman would replace Andrew Jackson on the $20 bill, instead. After each announcement, we surveyed nationally representative samples of American adults and asked them what they thought of these proposed changes for the $10 bill (Study 1, N = 209) and the $20 bill (Study 2, N = 208). Predictors of currency preferences were gender, race, political affiliation and their respective prejudices and biases—sexism, racism, and political ideology. On the basis of social identity, system justification, and social dominance theories we predicted that privileged groups (i.e., males, Whites) and groups who desire to maintain the status quo (i.e., Republicans, conservatives, sexist and racist individuals) would prefer to leave Hamilton on the $10 bill and Jackson on the $20 bill. Results were consistent with these predictions: Overall, we found that under‐represented groups and more liberal individuals support the proposals from the U.S. Department of the Treasury. These findings suggest a bill of money is not just a piece of paper. The person depicted on U.S. currency can be perceived as an in‐group or out‐group member and this can affect judgements in line with relevant social psychological theories.  相似文献   
959.
Mastery of many tasks in daily life requires role differentiated bimanual hand use with high spatiotemporal cooperation and minimal interference. The authors investigated developmental changes in the performance of a disparate bimanual movement task requiring sequenced movements. Age groups were attributed to changes in CNS structures critical for bimanual control such as the corpus callosum (CC) and the prefrontal cortex; young children (5–6 years old), older children (7–9 years old), and adolescents (10–16 years old). Results show qualitative changes in spatiotemporal sequencing between the young and older children which typically marks a phase of distinct reduction of growth and myelination of the CC. Results show qualitative changes in spatiotemporal sequencing between the young and older children, which coincides with distinct changes in the growth rate and myelination of the CC. The results further support the hypothesis that CC maturation plays an important role in the development of bimanual skills.  相似文献   
960.
Sometimes aggression is displaced onto a target who is not totally innocent but emits a mildly irritating behavior called a triggering event. In three experiments, the authors examine stable personal attributes of targets that can impact such triggered displaced aggression (TDA). Lower levels of TDA were directed to targets whose attitudes were similar as compared to dissimilar to those of the actor (Experiment 1) and to targets who were ingroup as compared to out-group members (Experiment 2). Conceptually replicating the findings of Experiments 1 and 2, the manipulated valence of the target (viz., liked, neutral, and disliked) functioned in a similar manner, with positive valence serving a buffering function against a triggering action that followed an initial provocation (Experiment 3). The results from all three experiments are consistent with cognitive neoassociationist theory.  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