联系数学与T检验在差异显著性检验中的比较研究

本文把联系数学的理论运用于显著性检验,并与传统的体育统计“T”检验作比较,得出该方法较传统方法更为合理、优越,易为广大体育教师所接受,值得推广。     

类比推理与比喻推理之比较研究

类比推理与比喻推理在概念、推理模式、特征以及作用等方面既有区别又有联系。类比推理建立在客观事实的基础上,常用于探索自然界的奥秘,它要求两个(类)事物有一系列相同之处,已知属性与推出属性的相关程度越高,前提对结论的支持就会越强;而比喻推理建立在比喻这种修辞手法之上,常用于论述道理,比喻推理中比喻和被比喻的事物只要存在相似关系即可,相似属性的建立越恰当精准,推理越"有说服力"。但类比推理和比喻推理都是对两个(类)不同事物进行比较,要求事物间相似处越多越好,并且力求产生较强推理效果的推理。     

民族理论研究的多学科视野新探索--评王瑜卿的《民族交往的多维审视》

民族理论研究新作《民族交往的多维审视》关注的焦点是少数民族融入城镇化的相关问题。该书以民族交往理论为基础,借用社会共生理论与文化“涵化”理论,思考当今民族交往关系,揭示民族交往过程。该书有针对性地调查取证,采用学科交叉和相互移植的研究方法,综合运用哲学、文学、历史、法学等学科知识,构建起了一个多元学科交叉互用、立体支撑的研究结构。其理论创新在于民族交往的认识论研究,重点提出了民族和谐共处、化解冲突与矛盾的思路对策,为多民族、多国籍的城市社区民族和谐交往提供了有益的借鉴。     

Neuromuscular,biochemical and perceptual post-match fatigue in professional rugby league forwards and backs

Abstract

In this study, we investigated changes in creatine kinase, perceptual and neuromuscular fatigue of professional rugby league players after match-play. Twenty-three male rugby league players (10 backs, 13 forwards) had their creatine kinase, perceptual ratings of fatigue, attitude to training, muscle soreness, and flight time in a countermovement jump measured before and 1 and 2 days after (day 1 and day 2 respectively) league matches. Total playing time, offensive and defensive contacts were also recorded for each player. Creatine kinase was higher both 1 and 2 days after than before matches (P < 0.05) in forwards and backs. Similarly, perceived fatigue and muscle soreness were higher than pre-match on both days 1 and 2 (P < 0.05), but did not differ between groups (P > 0.05). Jump performance was lower on day 1 but not day 2 for both groups (P < 0.05). While total playing time was longer in backs (P < 0.05), relative frequencies for all contacts were greater in forwards (P < 0.05). Contacts for forwards were correlated with all markers of fatigue (P < 0.05), but only flight time was correlated with offensive contacts in backs (P < 0.05). Despite the mechanisms of fatigue being different between forwards and backs, our results highlight the multidimensional nature of fatigue after a rugby league match and that these markers do not differ between positions.     

非线性编辑软件Dvstorm在影视节目制作中的应用

本文结合操作实践,阐述了Dvstorm非线性编辑软件在影视节目中的应用,在内容的讲解上针 对Dvstorm软件中的一些特点,具体分析,大大提高了对软件的了解。     

论学习交往的教育意义、分类及对策

交往是人们普遍的存在方式和发展方式;教育作为一种促进人的发展的特殊社会实践活动,更典型地体现了人类活动的这种特点。因而教育不仅是要学生学会维持其生存和发展的知识技能,更需要使学生学会与人交往。在教育视野中,不仅要注意“交往”的工具性价值,同样应看到它的目的性价值,即把交往当作学生学习的目的,只有这样才能培养出全面和谐发展的人。     

Locating contact areas and estimating contact forces between the “Mona Lisa” wooden panel and its frame

Since 2004 an international research group of Wood Technologists has been given by the Louvre Museum the task of analysing the hygro-mechanical state of the Poplar (Populus alba L.) panel on which Leonardo da Vinci painted his “Mona Lisa”, namely verifying the appropriateness of the thermo-hygrometric conditions in its exhibiting showcase, where the microclimate is actively controlled, and assessing the potential consequences of any hypothetical fluctuation. In order to acquire data about the mechanical behaviour of the panel, and to feed and calibrate appropriate simulation models, the team has not only set up a continuous monitoring by means of automatic equipment, but has also performed manual measurements on the occasion of the annual openings of the showcase where the masterpiece is conserved and exhibited. This paper reports about techniques used for estimating the forces acting between the wooden panel and its frame (the châssis-cadre), and their location, such data being of primary importance for evaluating the panel's internal stresses. The contact forces have been calculated on the basis of the local contact pressures, imprinted on a pressure-sensitive foil as a range of saturation values of the colour developed in the contact areas. The forces calculated as above have also been compared with the contact forces between the panel's back face and the crossbeams pressing it against the châssis-cadre, which have been measured by means of a load cell. As could be expected, the results from so different techniques do not strictly coincide; however the agreement is fairly good.