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   195篇
  免费   2篇
教育   135篇
科学研究   10篇
各国文化   2篇
体育   30篇
信息传播   20篇
  2022年   1篇
  2021年   2篇
  2019年   2篇
  2018年   3篇
  2017年   8篇
  2016年   10篇
  2015年   5篇
  2014年   8篇
  2013年   37篇
  2012年   11篇
  2011年   11篇
  2010年   4篇
  2009年   2篇
  2008年   5篇
  2007年   2篇
  2006年   9篇
  2005年   2篇
  2004年   1篇
  2003年   6篇
  2002年   5篇
  2001年   5篇
  2000年   5篇
  1999年   5篇
  1998年   6篇
  1997年   4篇
  1996年   1篇
  1995年   3篇
  1994年   2篇
  1993年   3篇
  1992年   1篇
  1991年   4篇
  1990年   4篇
  1989年   2篇
  1987年   2篇
  1986年   2篇
  1985年   2篇
  1984年   1篇
  1982年   1篇
  1977年   2篇
  1974年   2篇
  1973年   2篇
  1970年   1篇
  1951年   1篇
  1929年   1篇
  1925年   1篇
排序方式: 共有197条查询结果,搜索用时 15 毫秒
21.
2 studies were conducted of children's concepts of moral and nonmoral religious rules. In Study 1, 64 Amish-Mennonite children (ages 10, 12, 14, 16) were asked to evaluate 4 moral and 7 nonmoral religious rules as to rule alterability, generalizability, and whether the status of the acts was contingent on the word of God. As a second aspect of Study 1, 64 Dutch Reform Calvinist children were asked to determine whether God's commands could make a harmful act morally right. Study 2 replicated the basic design of Study 1 with 64 Conservative and 32 Orthodox Jewish children. Findings were that subjects differentiated between moral and nonmoral religious issues. Moral rules and some nonmoral rules were seen as nonalterable by religious authorities. The status of moral (but not nonmoral) acts was generalized to members outside the religion and was not viewed as contingent on the existence of statements from God. Judgments regarding moral issues were justified in terms of justice and human welfare considerations; nonmoral issues were evaluated in terms of their normative status. Some denominational and age effects were found. Findings supported the proposition that social knowledge is constructed within conceptual systems that represent fundamental categories of social experience.  相似文献   
22.
72 children, ages 6 to 11 years, were presented with a series of stories involving psychological harm (name-calling) in a game context. Situations were presented in which intentions, consequences, and game context were varied, along with order of story presentation. Comparisons between acts of physical and psychological harm were also conducted. Although responses in some conditions were influenced by order of presentation, age differences were found in children's evaluations of agents' actions and recipients' reactions for psychological harm in game contexts. Younger children were more likely to ignore intentions and consequences or the recipient's perspective and to focus on contextual features (e.g., game rules). Older children were more likely to base their evaluations on intentions, or both intentions and consequences, and to take into account the recipient's perspective. Game context interacted differentially with psychological and physical harm at all ages. Evaluations of acts of physical harm were more likely than acts of psychological harm to be transformed by game context.  相似文献   
23.
Objective. Caregivers play an important role in child development; in addition to instilling their norms and values in their children through socialization, caregivers modify their parenting practices in response to children’s characteristics. Previous studies have documented child genetic effects on parenting behaviors, but multivariate behavioral genetic examinations of parenting are scarce. Design. The current study examined the multivariate structure of child genetic and environmental influences on parenting in a sample of 236 individual twins aged 0–5 years, providing a total of 542 observations. Results. “Shared environments” (between-family environmental differences that are shared by twins reared in the same home, including parental characteristics, family socioeconomic status, and neighborhood characteristics) account for the majority of variation in parenting practices, whereas child genetic effects are more modest and occur more on specific parenting practices. Conclusion. Caregivers generally engage in similar parenting across children reared together and, at the same time, adjust their broad parenting approach and particularly their specific practices in response to genetically driven child characteristics. Future research may benefit from using a multidimensional framework to examine the different components and age-related transformations in these parent-driven and child-driven processes.  相似文献   
24.
ObjectiveTo examine the prevalence, characteristics and risk factors for child maltreatment among opioid-dependent persons compared to a community sample of similar social disadvantage.MethodThe study employed a case-control design. Cases had a history of opioid pharmacotherapy. Controls were frequency matched to cases with regard to age, sex and unemployment and were restricted to those with a lifetime opioid use of less than five times. The interview covered child maltreatment, family environment, drug use and psychiatric history.ResultsThis study found a high prevalence of child maltreatment among both cases and controls. Despite the elevated prevalence among controls, opioid-dependent males had a higher prevalence of physical and emotional abuse; female cases had a higher prevalence and greater severity of sexual abuse. The prevalence of neglect was similar for both groups. Early parental separation was more prevalent among female cases compared to female controls; otherwise the prevalence of the risk factors was comparable for both groups. The risk factors significantly associated with child maltreatment were also similar for both cases and controls.ConclusionsGiven the documented association between child maltreatment and adult mental disorder, child maltreatment may be an important antecedent of current psychological distress in persons presenting to treatment for opioid dependence. Apart from a possible association between early parental separation and sexual abuse among female cases, the increased prevalence of child maltreatment associated with opioid dependence did not appear to be related to differences in early childhood risk factors considered in this paper. Other risk factors may be more pertinent for those with opioid dependence.Practice implicationsThe high prevalence of child maltreatment among the opioid-dependent sample has implications for the assessment and treatment of clients presenting with opioid dependence. Assessment of child maltreatment history could help inform the development of individual treatment plans to better address those factors contributing to the development and maintenance of opioid dependence. Specifically, management of co-morbid mental disorder associated with child maltreatment could be the focus of relapse prevention programmes and also have a positive influence on treatment retention.  相似文献   
25.
This study investigated the status of phonological representations in French dyslexic children (DY) compared with reading level- (RL) and chronological age-matched (CA) controls. We focused on the syllable’s role and on the impact of French linguistic features. In Experiment 1, we assessed oral discrimination abilities of pairs of syllables that varied as a function of voicing, mode or place of articulation, or syllable structure. Results suggest that DY children underperform controls with a ‘speed-accuracy’ deficit. However, DY children exhibit some similar processing than those highlighted in controls. As in CA and RL controls, DY children have difficulties in processing two sounds that only differ in voicing, and preferentially process obstruent rather than fricative sounds, and more efficiently process CV than CCV syllables. In Experiment 2, we used a modified version of the Colé, Magnan, and Grainger's (Applied Psycholinguistics 20:507–532, 1999) paradigm. Results show that DY children underperform CA controls but outperform RL controls. However, as in CA and RL controls, data reveal that DY children are able to use phonological procedures influenced by initial syllable frequency. Thus, DY children process syllabically high-frequency syllables but phonemically process low-frequency syllables. They also exhibit lexical and syllable frequency effects. Consequently, results provide evidence that DY children performances can be accounted for by laborious phonological syllable-based procedures and also degraded phonological representations.  相似文献   
26.
Abstract

This study was concerned with the effect of bench-stepping in the Harvard Step Test upon finger and foot reaction time and, secondarily, with ascertaining the relationship, if any, between these reaction times and scores on the Harvard Step Test. The subjects were university freshman males. Reaction times were taken before, immediately after, and four minutes after the stepping exercise for 80 subjects. Thirty-six subjects served as controls, involving the reaction times and pulse counts at the prescribed intervals but without exercise. The findings failed to divulge any discernible effect of stepping exercise upon reaction time, or any apparent relationship between reaction time and the sum of the recovery pulse counts following the exercise. In view of these findings it is suggested that study be directed to two related aspects — the effect of exercise to exhaustion on reaction time, and the effect of strenuous and exhaustive exercise upon speed of movement.  相似文献   
27.
Over the past two decades important educational implications have beendrawn mainly from two movements of epistemology: Constructivismand situated cognition. Aside from a meta-theoretical use ofconstructivism, the concept 'situated cognition' refers to a conceptionof situational context bound to a historically and socially determinedsituational logic. Focusing on educational processes, situated cognitionis considered to be a central construct for instruction, as is theclosely related concept of the construction of mental models.There are various kinds of the construction and change of mental modelsin a situational context: self-guided inductive construction is oneexample; another is the processing of a conceptual model providedto the learner. An emerging question is how the preconception changesand if the effects of such a model transition are stable. An exploratorystudy will be sketched which investigates the significance of aconceptual model provided at the beginning of the learning process;it has been hypothesized, that such a conceptual model significantlyimpacts the stability (i.e. the successful reconstruction) of mentalmodels built in the course of learning. Also considerableintraindividual differences and changes between two points of assessingthe learners' causal explanations were found. Similarities of theindividuals' reconstructions could be explained with regard tosimilarities of the structures of the learning situations and therelated instructional intervention. In general, the results of thisexploratory study support the assumption that mental models areconstructed in dependence on the demands of learning situations.  相似文献   
28.
Longitudinal data from the «Berlin-Bremen Study on Health Behavior» are used to investigate smoking transitions between different stages of smoking. 1357 seventh and eighth graders were asked about their smoking behavior, their expectations with regard to smoking, smoking in their environment, and their self-image in Fall, 1983. 86% and 81% participated again one and two years later, respectively. Analyses of carbon monoxide and serum thiocyanate levels revealed adequate validity for self-reported smoking behavior. Rates of smoking were dramatically different for different educational strata. Direct and indirect functions of smoking are distinguished. The «indirect» function refers to smoking as a means of obtaining access to peer groups, thus increasing one’s psychological well-being. Direct functions refer to social and affective effects of smoking such as looking older or calming down. In line with expectations, indirect functions were found to be more important for younger adolescents and for smoking onset. In contrast, direct functions were better predictors of the smoking behavior of older adolescents and of the transition to regular smoking.  相似文献   
29.
30.
We will describe a one-quarter pilot algebra-based introductory physics course for pre-health and life science majors. The course features videos with biomedical experts and cogent biomedically inspired physics content. The materials were used in a flipped classroom as well as an all-online environment where students interacted with multimedia materials online and prior to engaging in classroom activities. Pre-lecture questions on both the medical content covered in the video media and the physics concepts in the written material were designed to engage students and probe their understanding of physics. The course featured group discussion and peer-lead instruction. Following in-class instruction, students engaged with homework assignments which explore the connections of physics and the medical field in a quantitative manner. Course surveys showed a positive response by the vast majority of students. Students largely indicated that the course helped them to make a connection between physics and the biomedical field. The biomedical focus and different course format were seen as an improvement to previous traditional physics instruction.  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