全文获取类型
收费全文 | 1607篇 |
免费 | 33篇 |
专业分类
教育 | 1293篇 |
科学研究 | 36篇 |
各国文化 | 36篇 |
体育 | 65篇 |
综合类 | 1篇 |
文化理论 | 10篇 |
信息传播 | 199篇 |
出版年
2023年 | 7篇 |
2022年 | 6篇 |
2021年 | 20篇 |
2020年 | 24篇 |
2019年 | 51篇 |
2018年 | 65篇 |
2017年 | 77篇 |
2016年 | 55篇 |
2015年 | 38篇 |
2014年 | 52篇 |
2013年 | 401篇 |
2012年 | 43篇 |
2011年 | 34篇 |
2010年 | 47篇 |
2009年 | 43篇 |
2008年 | 48篇 |
2007年 | 35篇 |
2006年 | 27篇 |
2005年 | 37篇 |
2004年 | 42篇 |
2003年 | 27篇 |
2002年 | 26篇 |
2001年 | 25篇 |
2000年 | 21篇 |
1999年 | 19篇 |
1998年 | 13篇 |
1997年 | 22篇 |
1996年 | 17篇 |
1995年 | 21篇 |
1994年 | 20篇 |
1993年 | 20篇 |
1992年 | 11篇 |
1991年 | 19篇 |
1990年 | 15篇 |
1989年 | 12篇 |
1988年 | 10篇 |
1986年 | 11篇 |
1985年 | 10篇 |
1984年 | 22篇 |
1983年 | 12篇 |
1982年 | 15篇 |
1981年 | 13篇 |
1980年 | 15篇 |
1979年 | 10篇 |
1978年 | 7篇 |
1977年 | 11篇 |
1976年 | 11篇 |
1975年 | 9篇 |
1974年 | 13篇 |
1973年 | 7篇 |
排序方式: 共有1640条查询结果,搜索用时 15 毫秒
51.
Takoutsing Bertin Tchoundjeu Zacharie Degrande Ann Asaah Ebenezar Tsobeng Alain 《The Journal of Agricultural Education and Extension》2013,19(5):463-483
AbstractPurpose: Formal agricultural research has generated vast amount of knowledge and fundamental insights on land management, but their low adoption has been attributed to the use of public extension approach. This research aims to address whether and how full participation of farmers through the concept of Rural Resource Centre (RRC) provides new insights for the development of alternative and farmers-based extension methods.Design/Methodology/Approach: Using the Concept of RRC, this research assesses the role of farmers in on-farm demonstrations and scaling-up of land management practices, and investigates effective ways to enhance beneficial interactions between researchers, extension workers and farmers in view of improving adoption.Findings: The findings suggest that farmers can effectively participate in demonstrations and scaling-up of agricultural practices. This participation is enhanced by judicious incentives such as higher crop yields that motivate farmers and influence adoption. The current success of the approach stems from the fact that farmers, extension workers and researchers jointly implement the activities and their different aims were achieved simultaneously: scientific results for researchers, better agricultural practices for extension workers, and economic success and free choice for farmers.Practical implications: This research concludes that farmers have the capacities to play an innermost role in demonstrations and scaling-up of agricultural practices. However, there is a need to build and strengthen their capacities to facilitate their participation and contribution.Originality/Value: The article demonstrates the value of the preponderant role of farmers in on-farm demonstrations and scaling-up practices by exhibiting the beneficial interactions between researchers, extension workers and farmers. 相似文献
52.
This article explores heterogeneity as fundamental to learning. Inspired by Bakhtin's notion of heteroglossia, a design team consisting of an experienced classroom teacher and 2 researchers investigated how a class of 3rd and 4th graders came to understand disciplinary points of view on heat, heat transfer, and the particulate nature of matter. Through a series of planned and unplanned encounters, official versions of the Second Law of Thermodynamics and the particulate view of matter were juxtaposed with varied domains of experience of heat transfer and phase change in water. We analyze the children's discourse to examine how they populated these phenomena with meaning and what they learned in the process. We conclude by describing key principles and a conundrum that emerged from this research. 相似文献
53.
Inclusion of race and gender in criminal justice education has, to some degree, been prompted as a result of perceived bias by criminal justice system professionals. Utilizing the race and gender experience as a template, interactions between the gay, lesbian, bisexual and transgendered (GLBT) community and the criminal justice system are explored. This study surveyed criminal justice undergraduate degree programs to ascertain course content on gay and lesbian issues. Results indicate that an extremely small number of programs have such a course or alternatively incorporate GLBT issues within existing race and gender courses. Implications for criminal justice education are discussed. 相似文献
54.
Ann Grasso Ryan 《Annals of dyslexia》1994,44(1):227-249
This paper reports the results of a study comparing college freshmen with learning disabilities (LD) and freshmen with no
learning disabilities (NLD). Four data collections over one academic year were completed on a total of 72 students (LDn=39; NLDn=33). Results of the study indicated differences between groups in their initial choice of living accommodations and in the
changes made over the year: the overall trend was for students with LD to become more dependent on their families, while students
with NLD were becoming less dependent on their families. With regard to academics, students with LD reported spending significantly
less time in study and course preparation, as well as greater pessimism about success in coursework. Despite their pessimism,
the actual GPA attainment of students with LD was similar to that of NLD peers. Whereas both groups initially predicted it
would be easy to adjust to the academic and social nature of college, students with learning disabilities ultimately reported
being dissatisfied with the social climate on campus. No differences were found between LD and NLD students regarding their
motivation for attending college, or their plans for final degree attainment. 相似文献
55.
Over the years, professionals have hypothesized that a positive relationship exists between children's oral language proficiency and their written language performance. This study examined the following two aspects of the relationship between oral and written language: (a) Are specific linguistic components of language more closely related than others? (b) Do groups rated high, medium, or low on written language measures differ significantly in oral language proficiency? Measures of oral and written language were administered to 77 third-grade students. Results indicated that moderate relationships existed between grammatical aspects of oral and written language. Oral language proficiency was significantly different for groups rated high, medium, and low on the basis of written language performance. 相似文献
56.
Bullying is a significant concern in schools, and both bullies and victims are at risk for negative outcomes. In this study, 239 sixth‐grade teachers completed questionnaires about their perceptions of four components of school climate: high‐risk student behaviors, school‐wide barriers to learning, principal support, and cooperation among teachers. Teachers’ expectations and self‐efficacy for working effectively with both bullies and victims were assessed using case study vignettes. The results indicated that teachers’ perceptions of principal support were significantly related to teachers’ expectations and self‐efficacy for working with bullies. A graduate degree was also related to greater self‐efficacy for working with bullies. Administrators and school psychologists should consider the role of perceived principal support as an important factor in influencing teachers’ expectations and beliefs in working with bullies. 相似文献
57.
Ann S⊘yland Anne-Marit Skarsb⊘ Nina Amble Lise Christensen Anna Ølnes 《Higher Education in Europe》2000,25(2):147-153
The vision behind the work of the gender equality advisors in Norwegian universities and the Research Council of Norway is that of full equality between women and men in all areas and at all levels of the sector of higher education. The Network of Gender Equality Advisors in Higher Education and Research was formed in 1994. Both good and less good news can be reported on the work accomplished so far. A double strategy is applied to tackle gender inequality: mainstreaming and special commitment. 相似文献
58.
59.
Halverson, Roberton, and Langendorfer (1982) reported the development of children ages 6-13 years filmed longitudinally performing the forceful overarm throw. These authors described the children's progress through developmental sequences for trunk, humerus, and forearm actions; however, they did not study developmental relationships ("profiles") across these components. This paper reports how the profiles changed in the same children across trials within filming sessions and over time. The data revealed both common and individual developmental pathways. The frequencies of some pathways were not chance occurrences (p < or = .01), suggesting that within-person constraints eliminated certain movement relationships while encouraging others. The authors hypothesize that the kinematics of trunk rotation may serve as a control parameter for pattern change. 相似文献
60.
Larsen GE George JD Alexander JL Fellingham GW Aldana SG Parcell AC 《Research quarterly for exercise and sport》2002,73(1):66-72
The purpose of this study was to develop a submaximal, 1.5-mile endurance test for college-aged students using walking, jogging, or running exercise. College students (N = 101: 52 men, 47 women), ages 18-26years, successfully completed the 1.5-mile test twice, and a maximal graded exercise test. Participants were instructed to achieve a "somewhat hard" exercise intensity (rating of perceived exertion = 13) and maintain a steady pace throughout each 1.5-mile test. Multiple linear regression generated the following prediction equation: VO2 max = 65.404 + 7.707 x gender (1 = male; 0 =female) - 0.159 x body mass (kg) - 0.843 x elapsed exercise time (min; walking, jogging orrunning). This equation shows acceptable validity (R = .86, SEE = 3.37 ml x kg(-1) min(-1)) similar to the accuracy of comparable field tests, and reliability (ICC = .93) is also comparable to similar models. The statistical shrinkage is minimal (R(press) = 0.85, SEE(press) = 3.51 ml x kg(-) x min(-1)); hence, it should provide comparable results when applied to other similar samples. A regression model (R =.90, and SEE = 2.87 ml x kg(-1) min(-1)) including exercise heart rate was also developed: VO2 max = 100.162 +/- 7.301 x gender(1 = male; 0 =female) - 0.164 x body mass (kg) - 1.273 x elapsed exercise time -0.156 x exercise heart rate, for those who have access to electronic heart rate monitors. This submaximal 1.5-mile test accurately predicts maximal oxygen uptake (VO2max) without measuring heart rate and is similar to the 1.5-mile run in that it allowsfor mass testing and requires only a flat, measured distance and a stopwatch. Further, it can accommodate a wide range of fitness levels (from walkers to runners). 相似文献