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   9534篇
  免费   123篇
  国内免费   6篇
教育   6402篇
科学研究   1099篇
各国文化   330篇
体育   731篇
综合类   5篇
文化理论   64篇
信息传播   1032篇
  2021年   89篇
  2020年   127篇
  2019年   184篇
  2018年   225篇
  2017年   258篇
  2016年   241篇
  2015年   164篇
  2014年   193篇
  2013年   1688篇
  2012年   199篇
  2011年   204篇
  2010年   179篇
  2009年   176篇
  2008年   237篇
  2007年   220篇
  2006年   182篇
  2005年   173篇
  2004年   190篇
  2003年   125篇
  2002年   115篇
  2001年   155篇
  2000年   180篇
  1999年   160篇
  1998年   88篇
  1997年   86篇
  1996年   79篇
  1995年   69篇
  1993年   82篇
  1992年   138篇
  1991年   148篇
  1990年   151篇
  1989年   156篇
  1988年   122篇
  1987年   121篇
  1986年   116篇
  1985年   160篇
  1984年   127篇
  1983年   118篇
  1982年   100篇
  1981年   80篇
  1980年   90篇
  1979年   144篇
  1978年   91篇
  1977年   90篇
  1976年   78篇
  1975年   76篇
  1974年   88篇
  1973年   82篇
  1971年   74篇
  1968年   74篇
排序方式: 共有9663条查询结果,搜索用时 828 毫秒
171.
In two experiments, a recently devised mnemonic strategy was examined in the context of college students recalling the theme and contents of various paintings. With the painting-artist mnemonic strategy: (a) the artist's name is first recoded as a more concrete proxy; and (b) the recoded stimulus is then related to a prominent feature of the painting. Previous research has demonstrated that such a strategy enhances students' recall of artist names when cued with the associated paintings. The present study extends those findings by demonstrating that the strategy similarly facilitates students' recall of paintings and painting information when cued with the associated artist names. Of three different mnemonic variations included, one that incorporates a verbally described mnemonic interaction into the painting proved most effective. Suggestions for future research and educational implications are included in the discussion.  相似文献   
172.
Compliance and Comprehension in Very Young Toddlers   总被引:1,自引:0,他引:1  
We studied the relation of compliance with comprehension in 30 toddlers, 10 each at 12–13, 14–16, and 17–18 months of age. Requests, using preselected words, were made to children in the context of a naturalistic and pleasant play situation in a quasilaboratory setting. Detailed coding systems were used to define comprehension, compliance, and patterns of compliance-comprehension, noncompliance-comprehension, compliance-noncomprehension, and noncompliance-noncomprehension at each age period. Findings indicated significant shifts in the categories of compliance-comprehension and noncompliance-noncomprehension across the 3 ages, with the most striking change occurring between 14–16 and 17–18 months. Implications of the data are discussed.  相似文献   
173.
OBJECTIVE: Assessing the risk of further offending behavior by adult sexual perpetrators of children is highly relevant and important to professionals involved in child protection. Recent progress in assessing risk in sexual offenders has established the validity of actuarial measures, although there continues to be some debate about the application of these instruments. This paper summarizes the debate between clinical and actuarial approaches and reviews the "base rate" for United Kingdom sexual offense reconviction. METHOD: A review of the literature revealed 16 UK sexual reconviction studies, 8 using incarcerated samples (N=5,915) and 8 using non-incarcerated samples (N=1,274). UK estimates of sexual reconviction rates are compared with European and North American studies. RESULTS: The mean sexual reconviction rates for the incarcerated sample at 2 years (6.0%), 4 years (7.8%) and 6 years or more (19.5%) were higher than that of the comparative non-incarcerated sample at 2 years (5.7%), up to 4 years (5.9%), and 6 years or more (15.5%). The overall sexual reconviction rate for both samples combined was 5.8% at 2 years, and 17.5% at 6 years or more. CONCLUSIONS: The sexual reconviction rate for incarcerated sexual offenders is higher than that of non-incarcerated sexual offenders. The UK sexual reconviction rates were comparable with European and North American studies.  相似文献   
174.
175.
This study investigated for the first time several characteristics of underachievement in a large sample of Hong Kong elementary schoolchildren. More males were identified as underachievers than females, but the ratio was substantially less than the two-to-one rate typically found in the American literature. The stability and persistence of underachievement increased during the elementary school years, and the stability of underachievement tended to be higher in subject matter that was relatively more difficult, which varied with gender. Underachievement became more specific to particular academic subjects rather than more general across the elementary grades. Parents and teachers, but not the children themselves, perceived that underachievers were more capable than same-grade nonunderachievers (who score lower on ability tests), although this awareness is more likely directed at male than female underachievers, which has been observed in other samples. In grades 1-4, teachers provided extra mentoring, communications, and support to underachievers. Thereafter, underachievers became more disruptive, impatient, and aggressive in school and perhaps at home. At that point, teachers became less supportive, offered less extra mentoring, and applied greater behavioral control over underachievers. Underachieving children also perceived that their parents became less supportive and used more discipline in grades 5-6 relative to grades 3-4. These correlates of underachievement suggests the existence of a syndrome of underachievement that separates underachievers from children who have the same grades but lower mental ability.  相似文献   
176.
OBJECTIVE: Seeking to discern optimal programmatic strategies and inform the "universal versus targeted" debate in early home visitation services to prevent physical child abuse and neglect, a meta-analysis was conducted examining enrollment approaches in early home visitation studies and their reported outcomes. METHOD: Quantitative meta-analytic techniques were used to compare effect sizes from 19 controlled outcome studies across screening-based and population-based enrollment strategies. Effect sizes were calculated on protective services data and on child maltreatment related measures of parenting. RESULTS: On protective services report data, population-based studies reported a weighted mean effect size attributable to early home visitation of +3.72%, in comparison to -.07% for screening-based studies. On child maltreatment related measures of parenting, population-based studies reported a weighted mean effect size (r) attributable to early home visitation of +.092, in comparison to +.020 for screening-based studies. CONCLUSIONS: The findings indicate that population-based enrollment strategies appear favorable to screening-based ones in early home visitation programs seeking to prevent physical child abuse and neglect. It may be that psychosocial risk screens serve to enroll higher proportions of families for which early home visitation services are less likely to leverage change, and to exacerbate a mismatch between early home visitation service aims and family needs.  相似文献   
177.
178.
Memorial University has been active in the use of educational media since its creation, and operates a public channel, initially broadcast through CBC but now on cable distribution. The author discusses the changes that have occurred over the past few years in the role of television there and describes the interactive element called PLA YBA CK, through which viewers can now access any of 1000 programmes by a telephone call to the control room. The reader is invited to consider the changes in philosophy such developments inevitably entail.  相似文献   
179.
It is widely agreed that children recognize their first words in a different way than they later decode. One hypothesis is that sight words are recognized as wholes, another that they are recognized by parts. Two experiments were devised to compare these hypotheses. In one, children were taught a sight word accompanied by a salient extraneous cue and then tested for recognition of the word and the cue. In the other, children were taught sight words, then tested for recognition of each half of the word. The children were found to recognize the cue but not the word; they recognized one half of the word but not the other. The results support the idea that first words are recognized by selective association.  相似文献   
180.
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