What's in a grade? The multidimensional nature of what teacher-assigned grades assess in high school     

Alex J. Bowers 《Educational Research and Evaluation》2013,19(3):141-159

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By the Stream     

Roderick Hunt  Alex Brychta 《英语大王(小学)》2013,(5):36-38

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Association between knee-to-hip flexion ratio during single-leg vertical landings,and strength and range of motion in professional soccer players     

Gustavo Leporace  Marcio Tannure  Gabriel Zeitoune  Leonardo Metsavaht  Moacir Marocolo  Alex Souto Maior 《Sports biomechanics / International Society of Biomechanics in Sports》2020,19(3):411-420

Abstract

The aim of this study was to test the correlation between knee-to-hip flexion ratio during a single leg landing task and hip and knee strength, and ankle range of motion. Twenty-four male participants from a professional soccer team performed a continuous single leg jump-landing test during 10s, while lower limb kinematics data were collected using a motion analysis system. After biomechanical testing, maximal isometric hip (abduction, extension, external rotation), knee extension and flexion strength were measured. Maximum ankle dorsiflexion range of motion was assessed statically using the weight bearing lunge test. Pearson correlation coefficients were calculated to determine the associations between the predictor variables (knee and hip strength, and ankle ROM) and the main outcome measure (knee-to-hip flexion ratio). Correlation between knee-to-hip flexion ratio and hip abductors strength was significant (r = ?0.47; p = 0.019). No other significant correlations were observed among the variables (p > 0.05). These results demonstrated that a lower hip abductors strength in male soccer players was correlated with a high knee-to-hip flexion ratio during landing from a single leg jump, potentially increasing knee overload by decreasing energy absorption at the hip. The results provide a novel proposal for the functioning of hip muscles to control knee overload.  相似文献   

Michael F. Suarez,S. J., and H. R. Woudhuysen,Editors: The Book: A Global History     

Alex P. Grover 《Publishing Research Quarterly》2017,33(3):352-355

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Weeding with Wisdom: Tuning Deselection of Print Monographs in Book-Reliant Disciplines     

Alex D. McAllister  Allan Scherlen 《资料收集管理》2017,42(2):76-91

As university libraries transition to digital collections and new services, their book deselection projects often lead to the adoption of cross-discipline quantitative weeding criteria (such as age and low circulation) in the interest of speed and presumed fairness. Cross-discipline quantitative rubrics, however, can have unintended negative consequences when applied to disciplines such as history and literature that rely on older books with low circulation statistics. The authors argue for a discipline-differentiated approach to weeding academic library collections that can employ quantitative criteria for disciplines, such as in the sciences, that are more reliant on current materials and qualitative criteria for disciplines, such as in the humanities, whose scholars benefit from ready access to older and low-use books.  相似文献   

Closing the PDF gap: ReadCube’s experiments in reader‐focused design          下载免费PDF全文

Alex Hodgson  Lucas Schlager 《Learned Publishing》2017,30(1):65-69

Key points

• Twenty years ago, a fraction of articles were paired with supplements; now, one in five research stories go beyond PDF.
• Why has the evolution of research content's delivery vehicles lagged behind the evolution of the research story?
• Hyperlinked in‐line references are the most used feature of the Enhanced PDF – exposing faster, easier ways to follow the path of research.
• Discovery need not start and end with the search engine – it can start within the PDF itself.
• Discovery is not a solitary process; therefore, content platforms must support collaboration to drive readership.

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Relationships amongst cultural dimensions,educational expenditure and class size of different nations     

Hoi Yan Cheung  Alex W.H. Chan 《International Journal of Educational Development》2008

Many studies have concentrated on investigating educational expenditure and pupil–teacher ratio to see how these two factors can influence the quality of education. This study chooses to examine these two educational factors from a different perspective. If educational expenditure and pupil–teacher ratio really have a significant impact on the quality of education as many studies have claimed, it is important to step back and understand why some regions choose to have high/low educational expenditure and high/low pupil–teacher ratios. This study found that culture has an important impact on these two educational factors. Hofstede's cultural dimensions, namely Power Distance and Individualism, were applied and results showed that these two cultural dimensions, when applied to 43 regions around the world, demonstrated a significant impact on educational expenditure and pupil–teacher ratio.  相似文献   

动物也友善?     

Aline Alexander Newman  洪馥芝 《英语辅导》2008,(11)

人类有一套道德准则,(美国)科罗拉多大学的动物行为专家马克·贝可夫说。如果我不按某种方式办事,你就不会跟我玩了。有些动物也有同样的准则。  相似文献   

From the Adam Smith Institute to the Zapatistas: An Internet Gateway to all development knowledge     

Alex Wilks 《Compare》2002,32(3):327-337

This article critically examines a major World Bank Internet initiative, the Development Gateway. It describes the importance of the World Bank as the Knowledge Bank and the threats posed by the Internet to its near monopoly of development thinking. The Bank's Gateway plan attempts to bring together views of all stakeholders on a large number of topics at both global and country level. The article argues that this effort is naive, impossible and dangerous. The initiative, which will marginalise dissident and minority views, reveals biases and misunderstandings in the World Bank's overall approach to knowledge for development.  相似文献   

差异的世界:大学排名的全球调查   总被引：3，自引：2，他引：3  

亚历克斯·埃舍尔  马斯莫·萨维诺  王亚敏  侯书栋  李立国 《清华大学教育研究》2006,27(5):1-10

本文研究了全球19个大学排行榜,描述了排行榜作为质量评价手段是如何运作的,详细讨论了现有排名系统使用的质量指标并归纳出在排名上存在的不同地域模式。本文发现,世界上的主要排行榜之间没有多少联系,它们采用差别很大的指标和权重来评估大学。但是,有一些大学,无论是用何种的指标和权重,都会居于排行榜的前列。本文还探讨了与目前流行的严格按分数高低排名的“排行榜”不同的做法,并得出了结论。  相似文献