全文获取类型
收费全文 | 195篇 |
免费 | 6篇 |
国内免费 | 1篇 |
专业分类
教育 | 109篇 |
科学研究 | 16篇 |
体育 | 57篇 |
文化理论 | 4篇 |
信息传播 | 16篇 |
出版年
2023年 | 2篇 |
2022年 | 5篇 |
2021年 | 4篇 |
2020年 | 5篇 |
2019年 | 12篇 |
2018年 | 13篇 |
2017年 | 14篇 |
2016年 | 11篇 |
2015年 | 5篇 |
2014年 | 6篇 |
2013年 | 34篇 |
2012年 | 13篇 |
2011年 | 9篇 |
2010年 | 3篇 |
2009年 | 7篇 |
2008年 | 4篇 |
2007年 | 5篇 |
2006年 | 2篇 |
2005年 | 5篇 |
2003年 | 6篇 |
2002年 | 4篇 |
2001年 | 1篇 |
2000年 | 1篇 |
1999年 | 1篇 |
1998年 | 1篇 |
1997年 | 2篇 |
1996年 | 3篇 |
1993年 | 1篇 |
1992年 | 2篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1989年 | 3篇 |
1988年 | 3篇 |
1987年 | 2篇 |
1982年 | 1篇 |
1980年 | 1篇 |
1979年 | 1篇 |
1977年 | 1篇 |
1976年 | 1篇 |
1975年 | 1篇 |
1974年 | 3篇 |
1973年 | 2篇 |
排序方式: 共有202条查询结果,搜索用时 15 毫秒
101.
Melissa Hoffmann PhD William Brescia PhD 《British journal of educational technology : journal of the Council for Educational Technology》2012,43(4):E140-E141
With its thorough review of the uses of relevant techniques in education, this provides useful information for educators. It covers research, theory, pedagogy, and strategies for using e‐learning. If the content of this book is likely to be relevant to you, we recommend you borrow a copy for a while. Melissa Hoffmann & William Brescia 相似文献
102.
103.
There is conflicting evidence on the effect of seat location on student performance and participation in the classroom. The two major hypotheses are (1) that seat location influences student behavior and (2) that seat preference and selection is associated with personality traits of students. This study evaluated both hypotheses within a 55 student senior nutritional biochemistry class. Alternating every other seat, half of the class was randomly assigned a permanent seat while the other half was randomly reassigned a different seat each class period. Students sitting in the front of the classroom in the stay group made significantly more comments per student per day than stay group students in the back, in agreement with other studies. The move group, however, showed increased overall participation with no significant difference between the front and back of the classroom. Findings suggest a more flexible explanation—that students may adopt or reject an implied social role in which seat location and personality traits are influential factors. 相似文献
104.
Public procurement can be a major source of innovation. The potential benefits of public procurement might be fully exploited through the acquisition not only of appliances which are already available in the market, but also of new appliances which are tailored to the specific needs of the local community and might be exported as well to the international markets. In this way, public procurement might allow to improve the services delivered to the local community and to increase the technological competitiveness of the local industrial and research system. In this context, regional foresight might help identify both long-term societal needs and the patterns of evolution of emerging technologies that can match these needs. The purpose of this paper is to illustrate, trough the recent experience of the regional government of Lombardy, the role of foresight for enhancing public procurement and innovation policy at the regional level. 相似文献
105.
Hoffmann JJ 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2011,21(3):282-290
Neutrophilic granulocytes express their Fcgamma receptor, also known as the CD64 antigen, predominantly when they are activated. This makes neutrophil CD64 a potential biomarker for infection and sepsis. Indeed there is ample literature on the diagnostic utility of neutrophil CD64 in a variety of diseases. This review summarizes the literature on its application as a sepsis biomarker, in adults as well as in neonates and infants. The available data indicate that neutrophil CD64 seems to have high sensitivity (86%) and specificity (87%), but the methodological quality of most studies is questionable. Nevertheless, neutrophil CD64 appears to be a better diagnostic test than traditional hematological assays, C-reactive protein and probably even procalcitonin. Application of neutrophil CD64 in other conditions than sepsis is briefly presented. Finally, future clinical studies are discussed which are needed in order to confirm the diagnostic performance of this promising biomarker. 相似文献
106.
Ricardo Duarte Duarte Araújo Keith Davids Bruno Travassos Vítor Gazimba Jaime Sampaio 《Journal of sports sciences》2013,31(9):871-877
Abstract This study investigated the influence of interpersonal coordination tendencies on performance outcomes of 1-vs-1 sub-phases in youth soccer. Eight male developing soccer players (age: 11.8 ± 0.4 years; training experience: 3.6 ± 1.1 years) performed an in situ simulation of a 1-vs-1 sub-phase of soccer. Data from 82 trials were obtained with motion-analysis techniques, and relative phase used to measure the space-time coordination tendencies of attacker-defender dyads. Approximate entropy (ApEn) was then used to quantify the unpredictability of interpersonal interactions over trials. Results revealed how different modes of interpersonal coordination emerging from attacker-defender dyads influenced the 1-vs-1 performance outcomes. High levels of space-time synchronisation (47%) and unpredictability in interpersonal coordination processes (ApEn: 0.91 ± 0.34) were identified as key features of an attacking player's success. A lead-lag relation attributed to a defending player (34% around ?30° values) and a more predictable coordination mode (ApEn: 0.65 ± 0.27, P < 0.001), demonstrated the coordination tendencies underlying the success of defending players in 1-vs-1 sub-phases. These findings revealed how the mutual influence of each player on the behaviour of dyadic systems shaped emergent performance outcomes. More specifically, the findings showed that attacking players should be constrained to exploit the space-time synchrony with defenders in an unpredictable and creative way, while defenders should be encouraged to adopt postures and behaviours that actively constrain the attacker's actions. 相似文献
107.
Stefano Ceccon Elena Ceseracciu Zimi Sawacha Giorgio Gatta Matteo Cortesi Claudio Cobelli 《Journal of sports sciences》2013,31(3):276-287
Abstract Kinematic analysis of swimming is of interest to improve swimming performances. Although the video recordings of underwater swimmers are commonly used, the available methodologies are rarely precise enough to adequately estimate the three dimensional (3D) joint kinematics. This is mainly due to difficulties in obtaining the required kinematic parameters (anatomical landmarks, joint centres and reference frames) in the swimming environment. In this paper we propose a procedure to investigate the right upper limb’s 3D kinematics during front crawl swimming in terms of all elbow and shoulder degrees of freedom (three rotations of the shoulder, two of the elbow). The method is based upon the Calibrated Anatomical Systems Technique (CAST), a technique widely used in clinics, which allows estimation of anatomical landmarks of interest even when they are not directly visible. An automatic tracking technique was adopted. The intra-operator repeatability of the manual tracking was also assessed. The root mean squared difference of three anatomical landmarks, processed five times, is always lower than 8 mm. The mean of the root mean squared difference between trajectories obtained with the different methodologies was found to be lower than 20 mm. Results showed that complete 3D kinematics of at least twice as many frames than without CAST can be reconstructed faster and more precisely. 相似文献
108.
Children's Increased Emotional Egocentricity Compared to Adults Is Mediated by Age‐Related Differences in Conflict Processing 下载免费PDF全文
This study investigated the cognitive mechanisms underlying age‐related differences in emotional egocentricity bias (EEB) between children (aged 7–12 years, n = 30) and adults (aged 20–30 years, n = 30) using a novel paradigm of visuogustatory stimulation to induce pleasant and unpleasant emotions. Both children and adults showed an EBB, but that of children was larger. The EEB did not correlate with other measures of egocentricity. Crucially, the developmental differences in EEB were mediated by age‐related changes in conflict processing and not visual perspective taking, response inhibition, or processing speed. This indicates that different types of egocentricity develop independently of one another and that the increased ability to overcome EEB can be explained by age‐related improvements in conflict processing. 相似文献
109.
110.
Interpersonal coordination tendencies shape 1-vs-1 sub-phase performance outcomes in youth soccer 总被引:2,自引:2,他引:0
Duarte R Araújo D Davids K Travassos B Gazimba V Sampaio J 《Journal of sports sciences》2012,30(9):871-877
This study investigated the influence of interpersonal coordination tendencies on performance outcomes of 1-vs-1 sub-phases in youth soccer. Eight male developing soccer players (age: 11.8 ± 0.4 years; training experience: 3.6 ± 1.1 years) performed an in situ simulation of a 1-vs-1 sub-phase of soccer. Data from 82 trials were obtained with motion-analysis techniques, and relative phase used to measure the space-time coordination tendencies of attacker-defender dyads. Approximate entropy (ApEn) was then used to quantify the unpredictability of interpersonal interactions over trials. Results revealed how different modes of interpersonal coordination emerging from attacker-defender dyads influenced the 1-vs-1 performance outcomes. High levels of space-time synchronisation (47%) and unpredictability in interpersonal coordination processes (ApEn: 0.91 ± 0.34) were identified as key features of an attacking player's success. A lead-lag relation attributed to a defending player (34% around -30° values) and a more predictable coordination mode (ApEn: 0.65 ± 0.27, P < 0.001), demonstrated the coordination tendencies underlying the success of defending players in 1-vs-1 sub-phases. These findings revealed how the mutual influence of each player on the behaviour of dyadic systems shaped emergent performance outcomes. More specifically, the findings showed that attacking players should be constrained to exploit the space-time synchrony with defenders in an unpredictable and creative way, while defenders should be encouraged to adopt postures and behaviours that actively constrain the attacker's actions. 相似文献