Force transducer system for measurement of ice hockey skating force

The purpose of this study was to develop a portable force measurement system for ice hockey skating. The system consisted of three strain gauge pairs affixed to an ice hockey skate’s blade holder with wire leads connected to a microprocessor controlled data acquisition device carried in a backpack worn by the skater. The configuration of the strain gauges simultaneously determined the vertical and medial–lateral force components experienced by the blade holder with a resolution accuracy of 1.9 N and a coefficient of variation of 9.2%. On-ice testing of this system with subjects performing forward start, acceleration, and constant velocity skating permitted unencumbered, natural movement and demonstrated clear, unambiguous signal responses, high trial-to-trial repeatability, and easy data retrieval. The practicality and accuracy of this testing approach have many applications, such as a quantitative tool for skating force assessment to aid athletes and coaches, as well as providing the means to examine other skill-specific dynamics.     

Changing the English language curriculum in Brunei Darussalam

This paper describes the development of a language project in Brunei Darussalam, a project aimed at improving English language learning and fostering positive reading interests. In-service teachers were trained to change from traditional textbook-based techniques to an activity-based approach integrating the practice of aural-oral and writing skills. The major components of project implementation will be discussed to demonstrate the optimization of available resources, particularly available expertise in teacher skill and language competence. This project provides an interesting example of an attempt to satisfy the practical demands of policy-makers while adhering to research standards of evaluation studies.     

Revel,Riot and Rebellion and The Social History of Politics

ABSTRACT

This article considers the ties between soldiers and civilian life in First World War Britain. Previous assumptions about soldierly alienation and disillusionment from civilian society have been questioned in recent years. This article adds to this discussion by examining the part played by National War Aims Committee propaganda in fostering links between soldiers and the home front. Representation of civilian activities, community, rurality and domesticity offered reassurance that Britain remained largely the same as soldiers remembered. The involvement of soldiers as propagandists also shows that attitudes cannot be deduced solely from the perspective of literary depictions of alienation.     

生死相拥5000年

[1](路透社)意大利瓦尔达罗电——意大利将不会分离它石器时代的“情侣”。[2]科学家说他们决定把这对相拥5000年之久的情侣遗体整体移动并保存,作为献给全国的情人节礼物,在他们永远拥抱的姿势中,他们的胳膊仍然相互缠绕在一起。     

The role of special schools for children with profound and multiple learning difficulties: is segregation always best?

The education of young people with profound and multiple learning difficulties continues to raise challenges and controversies. In this article, Ben Simmons, an ESRC funded PhD student and research assistant, and Phil Bayliss, programme director for the masters degree in special education and disability, both based in the School of Education and Lifelong Learning at the University of Exeter, describe their research into provision for pupils with profound and multiple learning difficulties in a special school in the south west of England. Their work, based in an interpretivist, qualitative approach, set out to illuminate issues relating to the inclusion of pupils with profound and multiple learning difficulties. The findings presented here suggest that the school, in spite of its strong reputation, struggled significantly to provide appropriate learning experiences for pupils with profound and multiple learning difficulties. Ben Simmons and Phil Bayliss discuss the need for improved staff development opportunities focused on enhancing current levels of knowledge and skills. They conclude by calling for a reappraisal of the established view that special schools necessarily provide the best learning environment for pupils with profound and multiple learning difficulties.     

Collagen-based brain microvasculature model in vitro using three-dimensional printed template

We present an engineered three-dimensional (3D) in vitro brain microvasculature system embedded within the bulk of a collagen matrix. To create a hydrogel template for the functional brain microvascular structure, we fabricated an array of microchannels made of collagen I using microneedles and a 3D printed frame. By culturing mouse brain endothelial cells (bEnd.3) on the luminal surface of cylindrical collagen microchannels, we reconstructed an array of brain microvasculature in vitro with circular cross-sections. We characterized the barrier function of our brain microvasculature by measuring transendothelial permeability of 40 kDa fluorescein isothiocyanate-dextran (Stoke''s radius of ∼4.5 nm), based on an analytical model. The transendothelial permeability decreased significantly over 3 weeks of culture. We also present the disruption of the barrier function with a hyperosmotic mannitol as well as a subsequent recovery over 4 days. Our brain microvasculature model in vitro, consisting of system-in-hydrogel combined with the widely emerging 3D printing technique, can serve as a useful tool not only for fundamental studies associated with blood-brain barrier in physiological and pathological settings but also for pharmaceutical applications.     

Self-efficacy and vicarious learning in doctoral studies at a distance

Even though there are increasing numbers of PhD students in the distance mode, our current understanding of PhD candidature at a distance is limited and incomplete. On the one end of the spectrum are accounts of unhappy and isolated doctoral students who are separated from communities of practice. At the same time, literature offers accounts of PhD students at a distance who view themselves as agential and autonomous and are happy not to get sidetracked by others. In this reflection we ask what distinguishes the conventional PhD student from one who is studying at a distance, and invite more research on self-efficacy and vicarious learning of PhD students at a distance.     

Effective ranking and search techniques for Web resources considering semantic relationships

On the Semantic Web, the types of resources and the semantic relationships between resources are defined in an ontology. By using that information, the accuracy of information retrieval can be improved.