全文获取类型
收费全文 | 1920篇 |
免费 | 36篇 |
国内免费 | 3篇 |
专业分类
教育 | 1527篇 |
科学研究 | 83篇 |
各国文化 | 26篇 |
体育 | 150篇 |
综合类 | 1篇 |
文化理论 | 29篇 |
信息传播 | 143篇 |
出版年
2023年 | 12篇 |
2022年 | 36篇 |
2021年 | 38篇 |
2020年 | 56篇 |
2019年 | 83篇 |
2018年 | 125篇 |
2017年 | 106篇 |
2016年 | 112篇 |
2015年 | 59篇 |
2014年 | 78篇 |
2013年 | 394篇 |
2012年 | 72篇 |
2011年 | 59篇 |
2010年 | 46篇 |
2009年 | 59篇 |
2008年 | 54篇 |
2007年 | 52篇 |
2006年 | 44篇 |
2005年 | 40篇 |
2004年 | 30篇 |
2003年 | 26篇 |
2002年 | 30篇 |
2001年 | 23篇 |
2000年 | 25篇 |
1999年 | 7篇 |
1998年 | 15篇 |
1997年 | 15篇 |
1996年 | 8篇 |
1994年 | 17篇 |
1993年 | 20篇 |
1992年 | 11篇 |
1991年 | 17篇 |
1990年 | 12篇 |
1989年 | 8篇 |
1988年 | 10篇 |
1987年 | 10篇 |
1986年 | 11篇 |
1983年 | 9篇 |
1982年 | 5篇 |
1981年 | 7篇 |
1980年 | 7篇 |
1979年 | 7篇 |
1978年 | 12篇 |
1977年 | 5篇 |
1976年 | 10篇 |
1974年 | 10篇 |
1973年 | 6篇 |
1972年 | 6篇 |
1971年 | 6篇 |
1967年 | 5篇 |
排序方式: 共有1959条查询结果,搜索用时 0 毫秒
101.
Kirkland A 《Social studies of science》2012,42(2):237-261
That vaccines do not cause autism is now a widely accepted proposition, though a few dissenters remain. An 8-year court process in the US federal vaccine injury compensation court ended in 2010 with rulings that autism was not an adverse reaction to vaccination. There were two sets of trials: one against the measles-mumps-rubella (MMR) vaccine and one against the mercury-based preservative thimerosal. The MMR story is more widely known because of publicity surrounding the main proponent of an MMR-autism link, British doctor Andrew Wakefield, but the story of thimerosal in court is largely untold. This study examines the credibility battles and boundary work in the two cases, illuminating the sustaining world of alternative science that supported the parents, lawyers, researchers, and expert witnesses against vaccines. After the loss in court, the families and their advocates transformed their scientific arguments into an indictment of procedural injustice in the vaccine court. I argue that the very efforts designed to produce legitimacy in this type of lopsided dispute will be counter-mobilized as evidence of injustice, helping us understand why settling a scientific controversy in court does not necessarily mean changing anyone's mind. 相似文献
102.
103.
104.
105.
Anna C. Baldry 《Pastoral Care in Education》2005,23(2):30-35
This paper reports the Italian data on the bystanders' project. In the last decade, several studies have been conducted on the prevalence and nature of bullying among primary and secondary students as well as on individual and social risk factors, illustrating that bullying in the Italian context is a widespread phenomenon. No research has been conducted, so far, on the 'bystander' behaviours of those students who see other peers being bullied or bullying others in school either physically, verbally or through sexual coercion (i.e. touching girls). The study was conducted with 594 students (51.9% boys and 48.1% girls), aged 12–16 years old, with a mean age of 13.1 (SD=0.87). They were recruited from six different middle schools, two in each of three different sites in Italy: Northern Italy (Vercelli), Central Italy (Rome) and Southern Italy (Catania). Results showed that though the most likely reaction is supporting the victim by trying to discourage the bully, gender differences emerged, with girls more likely than boys to support the victim and boys more likely to encourage the bully or simply ignore. Differences resembling the same pattern emerged also with regard to own involvement as a bully or a victim. Findings are discussed by looking at possible applications for intervention. 相似文献
106.
This paper synthesizes key findings to facilitate the translation of research into classroom practice and provides guidelines for how effective instructional practices might be implemented, supported, and sustained in schools. Excerpts from a case study are presented to show how research‐based instructional approach translates into classroom practices in a local school district that tailors the approach to the realities of the local situation. In this paper, we review what the research suggests are the functions that allow a person in a leadership role to facilitate the translation of research into classroom practice. We describe how these functions were used to translate research into classroom practice in 2 school districts that are part of the Elementary and Middle School Technical Assistance Center (EMSTAC) project, a national research‐to‐practice effort. Examples of how these principles were put into practice and why different technical assistance approaches were used to implement research‐based practices in a primary and middle school setting are discussed. We conclude with reflections on the intricate nature of effecting change at the local level, and the progress that can be made within those intricacies. 相似文献
107.
108.
Lucyna Samek Anna De Maeyer-Worobiec Zoya Spolnik Lszl Bencs Velichka Kontozova ukasz Bratasz Roman Kozowski Ren Van Grieken 《Journal of Cultural Heritage》2007,8(4):361-369
The impact of electric overhead radiant heaters on the microclimate, air flows, transport and deposition of suspended particulate matter (SPM) was monitored between March 2004 and March 2005 in the historic churches of Saint Michael Archangel in Szalowa and Saint Catherine in Cracow (Poland). The measurements show that although irradiation at the floor level increases temperature and reduces relative humidity in the interior of the church, the effect out of the heated zone and for the surfaces sheltered from irradiation is very limited, i.e. their extent is comparable with natural fluctuations inherent to the local climate of the church. The radiant heaters proved to generate little convectional flow of the air. Therefore, the heating system was not found to increase the concentration of SPM indoors; in particular, no re-suspension of particles already present in the church was observed. This work has demonstrated that the overhead radiant heaters are capable of providing localised heat to the areas where people congregate without adversely affecting painted walls and the works of arts displayed in churches. Care, however, should be taken that sensitive works of art are not exposed to the direct infrared radiation. 相似文献
109.
110.
Aline Lorenz Anna Roth Carolin Priese Eva Peukert Stefanie Mertel Susanne Bloß 《Education 3-13》2017,45(5):543-557
Interest is a central learning prerequisite for teaching. The article deals with a survey among 1600 primary school pupils in forms 2, 3 and 4 (ages 7–10) in the German federal state of Bavaria who were interviewed on their interest in geographical topics and working methods. They were given a questionnaire including 40 items to indicate their individual interest on a five-point Likert scale. The results show that the subscale ‘natural disaster' generates the highest interest, followed by ‘phenomena of geoscience' and ‘people and peoples'. The interest in all three subscales decreases with increasing age. Furthermore, several gender-specific differences occur. Among the working methods, experimenting, films and computers hold the first three places whilst again showing significant differences concerning age group as well as gender. 相似文献