全文获取类型
收费全文 | 1067篇 |
免费 | 22篇 |
国内免费 | 2篇 |
专业分类
教育 | 774篇 |
科学研究 | 44篇 |
各国文化 | 18篇 |
体育 | 112篇 |
文化理论 | 11篇 |
信息传播 | 132篇 |
出版年
2023年 | 6篇 |
2022年 | 10篇 |
2021年 | 16篇 |
2020年 | 20篇 |
2019年 | 29篇 |
2018年 | 38篇 |
2017年 | 41篇 |
2016年 | 41篇 |
2015年 | 30篇 |
2014年 | 27篇 |
2013年 | 251篇 |
2012年 | 28篇 |
2011年 | 30篇 |
2010年 | 33篇 |
2009年 | 23篇 |
2008年 | 24篇 |
2007年 | 21篇 |
2006年 | 20篇 |
2005年 | 29篇 |
2004年 | 13篇 |
2003年 | 20篇 |
2002年 | 21篇 |
2001年 | 17篇 |
2000年 | 13篇 |
1999年 | 18篇 |
1998年 | 16篇 |
1997年 | 13篇 |
1996年 | 9篇 |
1995年 | 15篇 |
1994年 | 11篇 |
1993年 | 10篇 |
1992年 | 7篇 |
1991年 | 14篇 |
1990年 | 15篇 |
1988年 | 8篇 |
1987年 | 7篇 |
1986年 | 8篇 |
1985年 | 8篇 |
1983年 | 12篇 |
1982年 | 8篇 |
1981年 | 6篇 |
1980年 | 15篇 |
1978年 | 10篇 |
1976年 | 9篇 |
1974年 | 7篇 |
1971年 | 5篇 |
1970年 | 5篇 |
1969年 | 6篇 |
1967年 | 7篇 |
1966年 | 5篇 |
排序方式: 共有1091条查询结果,搜索用时 15 毫秒
81.
Anthony J. Shinkfield 《Journal of Personnel Evaluation in Education》1994,8(3):251-266
Conclusion The St. Peter's College application of the Shinkfield model has proved itself to be a most attractive, successful approach for the evaluation of teachers. Provided that the teacher is being evaluated only with the expectation of positive outcomes in mind, improvement as a professional practitioner of teaching most likely will occur.The approach also has shown that the teacher-appraisal function can be a facilitating and enhancing process, characterized by openness of approach, mutual respect between teacher and principal and heightened awareness of the importance to teaching of mastery of particular skills and competencies. Any successful climate of process such as the one described here must strengthen the school itself and, more particularly, student learning.A South Australian with extensive experience in educational evaluation, Anthony Shinkfield is a member of CREATE's National Advisory Panel. 相似文献
82.
83.
84.
85.
86.
87.
The evolution of graduate education in electrical engineering began in the early 1890' s and progressed at a rapid pace in the 1920' s, particularly in metropolitan areas conscious of community needs. In these areas, evening programs held the spotlight because of the ever-demanding need to provide graduate engineers with advanced knowledge. Such cooperation between community interests and colleges has resulted in a wide variety of patterns of part-time study on campus and, more recently, off campus. The later development is viewed with criticism in several educational circles although off-campus programs are filling tremendous requirements arising from industrial concentrations not within easy reach of a university or college. The evolution seems to indicate that off campus programs are not a passing fancy and that such requirements are very likely to be best satisfied in the long run by the establishment of graduate centers with a faculty in residence. As an example, the Polytechnic Graduate Center on Long Island is described. (The Center, actually located in Farmingdale, N. Y., began its operation on September 25, 1961, with a graduate student body of nearly 700 in day and evening programs involving advanced courses in Aerospace Engineering, Electrical Engineering, Electrophysics, Mathematics, Mechanical Engineering, Physics, and Industrial Management. Close to 150 part-time day students are attending on a released-time basis, in addition to 45 full-time students in residence.) 相似文献
88.
89.
Linda Desbois Adrien Padirac Shohei Kaneda Anthony J. Genot Yannick Rondelez Didier Hober Dominique Collard Teruo Fujii 《Biomicrofluidics》2012,6(4)
Water-in-oil microdroplets offer microreactors for compartmentalized biochemical reactions with high throughput. Recently, the combination with a sol-gel switch ability, using agarose-in-oil microdroplets, has increased the range of possible applications, allowing for example the capture of amplicons in the gel phase for the preservation of monoclonality during a PCR reaction. Here, we report a new method for generating such agarose-in-oil microdroplets on a microfluidic device, with minimized inlet dead volume, on-chip cooling, and in situ monitoring of biochemical reactions within the gelified microbeads. We used a flow-focusing microchannel network and successfully generated agarose microdroplets at room temperature using the “push-pull” method. This method consists in pushing the oil continuous phase only, while suction is applied to the device outlet. The agarose phase present at the inlet is thus aspirated in the device, and segmented in microdroplets. The cooling system consists of two copper wires embedded in the microfluidic device. The transition from agarose microdroplets to microbeads provides additional stability and facilitated manipulation. We demonstrate the potential of this method by performing on-chip a temperature-triggered DNA isothermal amplification in agarose microbeads. Our device thus provides a new way to generate microbeads with high throughput and no dead volume for biochemical applications. 相似文献
90.
M Martín-Matillas FB Ortega JR Ruiz D Martínez-Gómez G Vicente-Rodríguez A Marcos L Béghin A Kafatos M González-Gross M Zaccaria D Molnár S De Henauw M Sjöström LA Moreno MJ Castillo On Behalf Of The Helena Study 《Journal of sports sciences》2012,30(13):1329-1335
Abstract High physical fitness in childhood and adolescence is positively associated with favourable health-related outcomes. Our aim was to examine the relationship between relatives' (father, mother, brother, sister, and best friend) physical activity engagement and encouragement on adolescents' physical fitness. Adolescents were part of the HELENA study, a multi-centre study conducted in 10 cities from nine European countries in 2006-2008. Participants were 3288 adolescents (48% boys, 52% girls) aged 12.5-17.5 years with valid data on at least one of the three fitness variables studied: muscular strength (standing long jump), speed/agility (4×10 m shuttle run), and cardiorespiratory fitness (20 m shuttle run). The adolescents reported their relatives' physical activity engagement and encouragement. Analysis of covariance showed that relatives' physical activity engagement (father, mother, brother, and best friend) was positively related to cardiorespiratory fitness (P?0.05); and mother's and sisters' physical activity engagement were positively associated with higher muscular strength in adolescents (P?0.05). Furthermore, father's physical activity encouragement was positively linked to physical fitness (all fitness components) in adolescents (P?0.05). Interventions aimed at improving physical fitness in young people might be more successful when family members, particularly mothers and fathers, are encouraged to engage in physical activity and support adolescents' physical activity. 相似文献