运动减肥机制探析———酰化刺激蛋白的作用及其调节

酰化刺激蛋白是脂肪组织分泌的一种激素，在调节脂肪代谢和能量平衡方面发挥重要作用。它一方面能够提高脂肪细胞捕获脂肪酸和合成甘油三酯的能力；另一方面可以通过抑制激素敏感脂酶的活性来抑制甘油三酯的分解。C3（-/-）（ASP缺乏）鼠所表现出的肥胖抵抗特征对于防肥减肥而言具有诱人的前景。综述了ASP的来源、生物学作用以及缺乏后的生物学特征，并对其在运动减肥机制中可能发挥的作用进行探讨。     

北京奥运会"人文奥运"新理念内涵探析

“人文奥运”是北京举办2008年奥运会的三大理念之一，也是北京2008年奥运会提出的新理念，它是奥林匹克运动的核心和灵魂。本文探讨以下4个问题：“人文奥运”新理念内涵的3种解释，“人文奥运”新理念内涵解释的选择，“人文奥运”新理念内涵的理解和“人文奥运”面临的挑战。     

A Model of Translations

This paper attempts to model translations from one language intoanother. Book markets are an integral part of the cultural life of anation, and new ideas on political, social and cultural aspects arespread by means of books. It is a fact, however, that linguisticbarriers will often prevent a book from reaching a mass audience unlessit is translated. But the mechanism involved in translations has notbeen adequately described. A model is presented here in three steps: Thefirst step is to determine the number of new books in an economy. Thenext step is to determine the propensity to import translated works fromother countries. The final step is to determine from which language thetranslation will originate. This provides a basis for judging thecultural affinity between nations.     

多方式信息传递在体育舞蹈技术技能教学中的应用研究

通过查阅大量文献,了解了在我国部分普通高校大学生中开设体育舞蹈课的现状,并结合高校体育舞蹈教学的特点,对多方式信息传递的教学效果进行了较为深入地研究和教学对照实验,通过实验教学,验证了多方式信息传递在高校体育舞蹈课程应用的可行性、有效性和综合性效果,为高校体育舞蹈课程教学方法的研究提供依据,从而进一步说明在新的历史时期,高等院校体育教育的发展、完善,体育教学的改革,课程内容的多样化和教学方法的多样化是一个重要的方向.     

数据异地同步传输在电子剪报服务中的应用

知识经济时代对信息服务业提出了更高、更快、更专的要求,而作为信息服务行业一部分的图书馆剪报服务,电子剪报技术也产生了许多新变化.数据异地同步传输的实现,帮助用户在第一时间获取新信息,极大地提高了剪报的实效性和价值.     

电子教学参考资料系统的著作权对策

概述电子教学参考资料系统的特征，分析有关的著作权风险，提出在现有法律环境下建设电子教学参考资料系统的著作权对策。     

Scale and Translation Invariant Collaborative Filtering Systems

Collaborative filtering systems are prediction algorithms over sparse data sets of user preferences. We modify a wide range of state-of-the-art collaborative filtering systems to make them scale and translation invariant and generally improve their accuracy without increasing their computational cost. Using the EachMovie and the Jester data sets, we show that learning-free constant time scale and translation invariant schemes outperforms other learning-free constant time schemes by at least 3% and perform as well as expensive memory-based schemes (within 4%). Over the Jester data set, we show that a scale and translation invariant Eigentaste algorithm outperforms Eigentaste 2.0 by 20%. These results suggest that scale and translation invariance is a desirable property.     

液压与气压传动教学改革的探索与实践

《液压与气压传动》课程是机械类各专业的一门重要技术基础课。几年来通过优化整合教学内容,充分利用以计算机技术为基础的现代教学媒体,对课程内容、教学手段及教学方法的改革进行了探索与实践,提高了教学质量,较好地完成了教学任务。     

Screening for risk of low energy availability in athletic and recreationally active females in Ireland

ABSTRACT

Introduction: Low energy availability (LEA) results in physiological adaptations, which can contribute to unfavourable health outcomes. Little information exists on risk of LEA in active individuals competing in different sports or levels of competition. The aims of this study were to (1) identify risk of LEA in females competing at different levels of competition and (2) investigate associations between risk of LEA, illness and dietary habits. Methods: The validated questionnaire, ‘Low Energy Availability in Females Questionnaire’ was distributed online (November 2016–February 2017) to assess risk of LEA. Twenty-nine additional questions collected information on demographics, illness history and dietary habits. Participants were considered at risk of LEA if they attained a score of?≥?8 and were grouped into: (i) international; (ii) provincial/inter-county; (iii) competitive; and (iv) recreationally active. Chi-square and logistic regression analyses were used to explore differences between those at risk or not at risk of LEA. Results: Risk of LEA was identified in 40% (n?=?331) of 833 participants and was 1.7 and 1.8 times more likely in international and provincial/inter-county athletes compared to those who were recreationally active (International: odds ratios (OR) 1.68, 95% confidence intervals (95%CI) 1.12–2.54; Provincial/inter-county: OR 1.83, 95%CI 1.20–2.77). In participants at risk of LEA, missing >22 days of training during the previous year due to illness occurred 3 times more frequently (OR 3.01, 95%CI 1.81–5.02). Conclusion: Risk of LEA was widespread in this heterogeneous sample. Awareness of LEA and the development of appropriate energy management strategies to ensure athlete health across levels of competition are required.     

中印两国勘探开发境外能源战略比较研究

由于中国和印度都面对着同样的国际环境,且基本国情相似,特别是在能源安全方面都面临着相同或相似的问题,即近年来经济呈现高速和持续增长,能源问题,尤其是石油问题已成为制约中印经济发展的最大瓶颈,中印都积极面向全球部署本国的能源战略,为迅猛增长的经济谋求充足的能源保障。我国的能源战略应向石油进口渠道多样化及多方面与石油输出国乃至消费国加强合作的途径发展。