全文获取类型
收费全文 | 746篇 |
免费 | 48篇 |
专业分类
794篇 |
出版年
2023年 | 5篇 |
2021年 | 12篇 |
2020年 | 14篇 |
2019年 | 15篇 |
2018年 | 26篇 |
2017年 | 28篇 |
2016年 | 30篇 |
2015年 | 15篇 |
2014年 | 25篇 |
2013年 | 87篇 |
2012年 | 39篇 |
2011年 | 35篇 |
2010年 | 18篇 |
2009年 | 33篇 |
2008年 | 25篇 |
2007年 | 38篇 |
2006年 | 34篇 |
2005年 | 30篇 |
2004年 | 28篇 |
2003年 | 26篇 |
2002年 | 21篇 |
2001年 | 13篇 |
2000年 | 15篇 |
1999年 | 8篇 |
1998年 | 15篇 |
1997年 | 7篇 |
1996年 | 5篇 |
1995年 | 10篇 |
1994年 | 9篇 |
1993年 | 3篇 |
1992年 | 9篇 |
1991年 | 8篇 |
1990年 | 5篇 |
1989年 | 10篇 |
1987年 | 4篇 |
1985年 | 8篇 |
1984年 | 9篇 |
1983年 | 3篇 |
1982年 | 6篇 |
1981年 | 9篇 |
1980年 | 5篇 |
1979年 | 4篇 |
1978年 | 7篇 |
1977年 | 7篇 |
1975年 | 3篇 |
1974年 | 3篇 |
1970年 | 3篇 |
1969年 | 3篇 |
1967年 | 2篇 |
1965年 | 2篇 |
排序方式: 共有794条查询结果,搜索用时 15 毫秒
771.
772.
773.
This research examined the development of the ability to differentiate logical from empirical problems and the different ways in which children solve these problems. Thirty-two 4- and 5-year-olds, thirty-four 8- and 9-year-olds, and thirty-five 11- and 12-year-olds were given five questions regarding an imaginary character’s predictions as to where a ball would land after being dropped through a ‘tautology machine’. The questions examined encoding and recall of problems, children’s understanding of when evidence was necessary, and children’s evaluation of form and evidence. Data were analyzed in two ways: (1) by comparing differences across participants on component questions and (2) an individual analysis examining the consistency of responses to component questions across the problem set. Overall, the results indicated that: (1) sixth graders tended to differentiate logical from empirical problems while preschool and third grade children rarely did; (2) young children tend to ignore both the logical connective and the second half of problems-termed a ‘cut;’ (3) these cuts are less frequent when a problem is compatible with one empirical possibility; (4) cuts do not stem from encoding or recall errors, but seem to be the product of incomplete problem processing and (5) from third to sixth grade, children’s understanding of logical form increased as the rate of cuts decreased. 相似文献
774.
775.
776.
A Great Plains land ethic is shaped by an intimate knowledge of and appreciation for the evolution, ecology, and aesthetics of the plains landscape. The landscape evokes a sense of wonder and mystery suggested by the word "sacrament." The biblical concept of "covenant" points to God as a community-forming power, a creative process that has evolved into the earth community to which we humans belong. In contrast to an anthropocentric ethic which emphasizes human dominion over nature, a Theo-centric land ethic seeks a balance, reflected in Genesis 1–3, between humans who are members of the earth community and moral agents accountable to God for the earth. A land ethic identifies concrete practices of metanoia and healing: agricultural practices to address the loss and degradation of soil; conservation and protection of water sources; utilization of wind and solar energy; and prescribed burning to restore processes vital to the prairie ecosystem. The concept of subsidiarity suggests that practices of metanoia and healing are a combination of wise public policy balanced by personal, family, church, business, and community responsibility. 相似文献
777.
Davíð R.M.A. Højgaard Sophie C. Schneider Valérie La Buissonnière-Ariza Brian Kay Bradley C. Riemann David Jacobi 《Cognitive behaviour therapy》2020,49(4):294-306
ABSTRACT Little is known about the predictors of outcome from intensive residential treatment of OCD. This study aimed to examine age, gender, and baseline OCD severity, as well as measures of comorbid anxiety and depressive, internalizing/externalizing, and inattention symptoms, as predictors of treatment outcome in adolescents receiving intensive residential treatment for OCD. The sample comprised 314 adolescents aged 13–17 years with treatment-resistant OCD and a Children’s Yale–Brown Obsessive–Compulsive Scale Self-Report (CY-BOCS-SR) total score ≥16. Bivariate and multiple regression models were used to evaluate the predictors of continuous OCD severity outcome and treatment response. Results of the bivariate regression analyses of predictors demonstrated that length of treatment, pre-treatment OCD severity, and symptoms of anxiety and depression significantly predicted post-treatment OCD severity, while only symptoms of depression and anxiety predicted treatment response. When including all predictors in the same model, only baseline OCD severity remained a significant predictor of post-treatment OCD severity, and none of the assessed variables significantly predicted treatment response. Results indicate that low pre-treatment OCD severity predicts lower OCD severity following treatment, although it did not predict treatment response. 相似文献
778.
Robert P. Hawkins Suzanne Pingree Jacqueline Hitchon Barry Radler Bradley W. Gorham Leeann Kahlor Eilleen Gilligan Ronald C. Serlin Toni Schmidt Prathana Kannaovakun Gudbjorg Hildur Kolbeins 《人类交流研究》2005,31(1):162-187
Individual looks at television vary enormously in length, and this has previously indicated differences in ongoing cognitive processes. Furthermore, the relative frequency of looks of different lengths may indicate styles of attention to television. This article compares visual attention of 152 subjects across a variety of genres and examines differences located by situation, person, and media perception variables. Attention style was not consistent for individuals but varied for different types of programming and between‐program breaks. Situational, person, and media belief variables did not predict the proportions of four types of looks. They did, however, predict differences in the proportion of moderately short (orienting) looks across types of content, but not the previously more important very short (monitoring) or moderately long (engaged) looks. The overall importance of type of content in these results suggests that further research should examine within‐program differences in message construction and assess attentional style as patterns or sequences of looks. 相似文献
779.
780.