全文获取类型
收费全文 | 188篇 |
免费 | 3篇 |
专业分类
教育 | 103篇 |
科学研究 | 11篇 |
各国文化 | 6篇 |
体育 | 45篇 |
信息传播 | 26篇 |
出版年
2023年 | 1篇 |
2022年 | 4篇 |
2021年 | 5篇 |
2020年 | 9篇 |
2019年 | 13篇 |
2018年 | 8篇 |
2017年 | 13篇 |
2016年 | 13篇 |
2015年 | 8篇 |
2014年 | 13篇 |
2013年 | 46篇 |
2012年 | 9篇 |
2011年 | 7篇 |
2010年 | 4篇 |
2009年 | 7篇 |
2008年 | 5篇 |
2007年 | 5篇 |
2006年 | 4篇 |
2005年 | 4篇 |
2004年 | 5篇 |
2003年 | 1篇 |
2002年 | 1篇 |
2001年 | 2篇 |
1996年 | 1篇 |
1990年 | 1篇 |
1987年 | 1篇 |
1986年 | 1篇 |
排序方式: 共有191条查询结果,搜索用时 234 毫秒
131.
Richard Kiely 《通化师范学院学报》2009,(3)
Language teaching is in a post-method age.This means that in the development of EFL/ESOL programmes and classroom practice,we are unlikely to find and implement a new method which will guarantee success in learning.As teachers,we work with an extensive and ever-changing repertoire of pedagogic 相似文献
132.
133.
A study assessing the mechanical behaviour of six natural turf pitches of varying sporting level and surface construction was undertaken over a period of 10?months, spanning a sporting season (August 2010 to May 2011). Penetration resistance and shear resistance were measured with the GoingStick?, impact hardness and surface energy absorption were measured with the 2.25?kg Clegg Impact Soil Tester and the Dynamic Surface Tester device, respectively. The two sand rootzone pitches were more resistant to deformation and less variable in their impact behaviour (impact hardness and energy absorption) through the season than the native soil pitches containing greater proportions of silt and clay. Greater consistency was shown for penetration resistance and shear resistance on one of the sand rootzone pitches, with the other behaving similar to the native soil pitches for these parameters. The sand rootzone surfaces exhibited greater (P?<?0.05) impact hardness than the native soil pitches in the winter period of the season (November to mid-March) compared to the beginning or end periods of the season, where data were statistically similar (P?>?0.05). The greater consistency of sand rootzone surfaces should be considered for the effect it may have on player and team performance, and injury potential. Analysis of data against Performance Quality Standard benchmarks indicated that all data on the sand rootzones exceeded preferred values for impact hardness, indicating these ranges may be obsolete for the modern elite natural turf surface. 相似文献
134.
The game of hurling is ranked as one of the fastest and most skilful field games in the world. It is played by a stick, hurley, made of ash wood and a ball, sliotar, made of a cork core or similar viscoelastic materials. Better standardisation of the game equipment requires analysing impacts to quantify precisely the effect of variations in equipment design on the resultant impact force at low and high striking speeds. Therefore, the purpose of the present study was to use a high-speed camera to (1) characterise the impact dynamics in term of impact force magnitude and duration, and (2) investigate whether a relationship exists between the game equipment and the magnitude of the impact force. An air cannon unit (ACU) test rig was set up to cause the sliotar to strike the hurley at predetermined speeds. A high-speed camera operating at 12,500 frames per second (fps) was used to capture 32 experimental impacts covering a range of sliotar and hurley brands, impact locations and impact speeds. The factor ??sliotar brand?? was identified as the most significant factor for the impact force among other main factors and two-factor interactions at a constant speed and it had a significant effect with up to 27?% difference between sliotar brands. It was demonstrated that, at higher impact speeds, the force?Cdeformation curves of the sliotar brands varied significantly, even though similar force?Cdeformation curves have been reported at quasi-static compression and similar COR values at low impact speeds using the standard free-drop test. This is the first known study to characterise the unique, highly non-linear and anisotropic sliotar?Churley impact using high-speed camera technology. It highlights the need for a tighter standard for sliotar materials and manufacturing to increase uniformity between different brands and strongly suggests that the standard free-drop test is not sufficient to characterise and compare game equipment. 相似文献
135.
Spencer M Lawrence S Rechichi C Bishop D Dawson B Goodman C 《Journal of sports sciences》2004,22(9):843-850
Limited information exists about the movement patterns of field-hockey players, especially during elite competition. Time-motion analysis was used to document the movement patterns during an international field-hockey game. In addition, the movement patterns of repeated-sprint activity were investigated, as repeated-sprint ability is considered to be an important fitness component of team-sport performance. Fourteen members of the Australian men's field-hockey team (age 26+/-3 years, body mass 76.7+/-5.6 kg, VO2max 57.9+/-3.6 ml.kg(-1).min(-1); mean+/-s) were filmed during an international game and their movement patterns were analysed. The majority of the total player game time was spent in the low-intensity motions of walking, jogging and standing (46.5+/-8.1, 40.5+/-7.0 and 7.4+/-0.9%, respectively). In comparison, the proportions of time spent in striding and sprinting were 4.1+/-1.1 and 1.5+/-0.6%, respectively. Our criteria for 'repeated-sprint' activity (defined as a minimum of three sprints, with mean recovery duration between sprints of less than 21 s) was met on 17 occasions during the game (total for all players), with a mean 4+/-1 sprints per bout. On average, 95% of the recovery during the repeated-sprint bouts was of an active nature. In summary, the results suggest that the motion activities of an elite field-hockey competition are similar to those of elite soccer, rugby and Australian Rules football. In addition, the investigation of repeated-sprint activity during competition has provided additional information about the unique physiological demands of elite field-hockey performance. 相似文献
136.
James Cory Tucker Matt Torrence 《Library Collections, Acquisitions, and Technical Services》2005,28(4):325
There are many challenges facing new librarians in the academic environment, including collection development. This article analyzes the topic of collection development and how it relates to new professionals in the field of librarianship. The article contains a literature review of papers discussing the collection development curriculum in library and information science programs, expected skills required of collection development offices, and library training programs for new librarians. The article also provides practical advise by recent graduates and their collection development experiences. Topics of discussion include acclimation to a new environment, collection development policies and procedures, liaison work, resource selection, and time management. 相似文献
137.
138.
Matt STALKER 《Learned Publishing》2007,20(4):283-289
In May 2006, the Institution of Chemical Engineers (IChemE) launched its first exclusively online journal, Education for Chemical Engineers ( http://www.icheme.org/ece ). The author describes the editorial and marketing strategy behind the successful launch of the new title and the challenges facing a publisher when launching an ‘online‐only’ title. The article discusses how IChemE's established presence in the chemical engineering community benefited the new journal's launch and concludes with a list of key points to remember when launching a new product – with particular relevance to online titles. 相似文献
139.
Matt L. Riggs Ronald G. Downey Patricia E. McIntyre Donald P. Hoyt 《Research in higher education》1986,25(4):365-376
Past attempts to predict the salary of faculty have been flawed by the use of rank, a potential source of bias, but removing rank from the equation seriously reduces prediction. This research studies the degree of bias in rank. Discriminant analysis produced a solution that correctly predicted rank 69% of the time for the 1083 faculty members used in the study. Among teaching and research faculty, there was a significant relationship between the direction of prediction error and gender. For women, the number of times they were predicted to have a rank higher than their actual rank exceeded the opposite condition by 2 1/2 times; for men, there was a slight tendency for the opposite. Methods were suggested for using the information administratively to correct problems. Further, recommendations are made to use the results to study salary-bias problems. 相似文献
140.
Todd M. Loughead Katrien Fransen Stef Van Puyenbroeck Matt D. Hoffmann Bert De Cuyper Norbert Vanbeselaere 《Journal of sports sciences》2016,34(21):2063-2073
Two studies investigated the structure of different athlete leadership networks and its relationship to cohesion using social network analysis. In Study 1, we examined the relationship between a general leadership quality network and task and social cohesion as measured by the Group Environment Questionnaire (GEQ). In Study 2, we investigated the leadership networks for four different athlete leadership roles (task, motivational, social and external) and their association with task and social cohesion networks. In Study 1, the results demonstrated that the general leadership quality network was positively related to task and social cohesion. The results from Study 2 indicated positive correlations between the four leadership networks and task and social cohesion networks. Further, the motivational leadership network emerged as the strongest predictor of the task cohesion network, while the social leadership network was the strongest predictor of the social cohesion network. The results complement a growing body of research indicating that athlete leadership has a positive association with cohesion. 相似文献