电脑医院

小B哥：你上次教我们，在浏览器地址栏中输入一长串地址（其中含QQ号码），就算不通过好友验证，也能和陌生的QQ网友聊天。可那串地址实在太长，我到现在也记不住，有没有更直接的方法？嘿嘿!小勇     

ATriple Iron triathlon leads to a decrease in total body mass but not to dehydration

A loss in total body mass during an ultraendurance performance is usually attributed to dehydration. We identified the changes in total body mass, fat mass, skeletal muscle mass, and selected markers of hydration status in 31 male nonprofessional ultratriathletes participating in a Triple Iron triathlon involving 11.4 km swimming, 540 km cycling and 126.6 km running. Measurements were taken prior to starting the race and after arrival at the finish line. Total body mass decreased by 1.66 kg (SD = 1.92; -5.3 kg to +1.2 kg; p < .001), skeletal muscle mass by 1.00 kg (SD = 0.90; -2.54 kg to +2.07 kg; p < .001), and fat mass by 0.58 kg (SD = 0.78; -1.74 kg to +0.87 kg; p < .001). The decrease in total body mass was associated with the decrease in skeletal muscle mass (r = .44; p < .05) and fat mass (r = .51; p < .05). Total body water and urinary specific gravity did not significantly change. Plasma urea increased significantly (p < .001); the decrease in skeletal muscle mass and the increase in plasma urea were associated (r = .39; p < .05). We conclude that completing a Triple Iron triathlon leads to decreased total body mass due to reduced fat mass and skeletal muscle mass but not to dehydration. The association of decrease in skeletal muscle mass and increased plasma urea suggests a loss in skeletal muscle mass.     

少年篮球运动员在准备参加比赛期的训练安排

不断完善少年篮球运动员的训练体系,是广大教练员和科学工作者经常注意的研究课题。多数研究的主要问题有:教学方法;一定的训练方案对身体训练的影响;通过教育观察论证教学方法;等等。也有一些牵涉到少年篮球运动员训练安排的文章,但是为数很少。本文的任务是:研究我们制定的少年     

非洲的西医师和传统医师:东南尼日利亚的实例

发展中国家的卫生保健规划与西方有很大的不同。在东南尼日利亚,传统医师的数量比受过西方医学训练的医师数量多得多,大多教人是这两种医师的病人。对于社会和实际的需要来说这是一件好事:这两种医学体系各有优缺点。从当前的情况看,可能出现一个由两者结合的卫生保健系统。     

碟中谍3

经过延期、换角等一系列不利事件后,汤姆·克鲁斯的《碟中谋3》终于要上映了。由于剧情保密功夫做得实在太好,小编也只能挖到零星消息(唉)。不过众多预测都似乎在暗示阿汤哥这次的情况不容乐观,希望是好事多磨吧。     

On the same page in sporting dyads: does dissimilarity on 2 x 2 achievement goal constructs impair relationship functioning?

This study examined the extent to which 2 x 2 achievement goal constructs (Elliot, 1999) were associated with key relational perceptions (i.e., relationship commitment, relationship satisfaction) for members of athlete-athlete dyads. Both members from 82 regional-level partnerships (mean age = 22.72, SD = 3.83) were recruited from a variety of dyadic sports (e.g., tennis, badminton, rowing). Actor-partner interdependence model analyses revealed that greater dissimilarity between partners on mastery-approach and performance-approach goals was associated with lower commitment and satisfaction. Mastery goals displayed positive actor effects with respect to both relationship perceptions, whereas performance-avoidance goals were negatively related to commitment (i.e., actor and partner effects) and satisfaction (i.e., partner effect). These results indicate that achievement goal constructs may align with important interpersonal perceptions in athlete dyads.     

谈谈奥林匹克篮球后备队员的训练方法

过去一年里的比赛,对于我们国家队来说是很不顺利的一年。经对具体情况的分析,主要原因是一些训练问题。一些专家认为,青年队教练员们训练效果不佳是我们水平难以提高的主要原因之一。在这一重要训练阶段,对奥林匹克预备队员的系统训练缺乏独特见解。现代篮球运动中的高超技巧都是建立在身体素质、快速技术和良好反应这些比赛所必需的因素之上的。从这一点出发,对奥林匹克预备队员的训练提出以下建议: 一、尽可能采取强化训练。二、要进行多年的系统身体训练。     

Comparison of force-related performance indicators between heavyweight and lightweight rowers

The aim of this study was to examine biomechanical variables relating to the force production of men's Lightweight (LW) and Heavyweight (HW) rowing pairs. Seven HW and seven LW coxless pairs were studied under a range of stroke rates, from 20 spm to race rating (average of 33.7 spm for the HWs and 33.9 spm for the LWs). Each crew was equipped with biomechanical apparatus allowing the measurement of gate force, horizontal oar angle, and boat velocity. The HW crews exhibited significantly higher (p < 0.05) values for all variables examined, at all rates. Peak handle force was 26.2% to 30.2% higher in the HW group. Average handle force ranged from 18.7% to 22.1% higher than the LW group. Work per stroke was found to be 26% to 28% higher for the HW crews, and Power Per Kilogram was also greater for the HW crews, from 24.0% to 29.2%. The LWs were observed to be consistently, but not significantly, slower than the HWs (from 96.9% at the race situation, to 98.7% at 28 spm). These observations are important when considering biomechanical performance indicators in rowing, as significant changes in performance indicators may lead to only minimal alteration in boat velocity.