我所犯的错误之本質与其原因

對於我的『敎育學原理』一書的討論已經繼續了三天。討論是在對我作原則性批評的環境中,首先是在自我批評和分析我們敎育科學原理的環境下進行的。我認爲對於我的『敎育學原理』一書的批評是正確的、是布爾什維克的。同志們的批評對我有很大的幫助。我在我的作品出版以前和出版以後會經將它讀過好幾遍。我自己也見到了和知道了我作品中一系列的錯誤與遺漏,但是根據我在這個會上所聽到的,我應該爽直並誠懇地說一說甚至自己没有懷疑過的許多東西.這是顯而易見的。所有髮言的同志們不單是個别地、各自分別地,並且在有敎師們參加的教育學院和師範學院的敎育系中都仔細地分析了我的著作。     

那抹绿色的指尖花——夏坚德的网球故事

冬日的西安,窗外一派萧瑟,冷冰冰的室外球场上散落着几枚暗灰色的网球,枝桠上的小鸟冻得浑身发抖,这没有网球的日子还真是漫长难熬。     

2009CBA全明星赛已成山寨版

2009年CBA全明星赛首发阵容确实怪事不少：第一,共有4名球员首次入选全明星,2人名不见经传;第二,两队首发阵容中竟然均无外援;第三,10名首发球员,来自9支球队,好像“摊派”一般。     

山寨火箭组团聚义CBA

怎么我们的人都跑中国去了啊,姚是不是在暗中做手脚啊,是不是姚把自己的一部分工资拿出来,让他们去中国打球了啊……没准哪天我们的五名先发队员都去中国了。——阿尔斯通     

Factors associated with concussion-symptom knowledge and attitudes toward concussion care seeking in a national survey of parents of middle-school children in the US

Background:Developing appropriate concussion prevention and management paradigms in middle school(MS)settings requires understanding parents’general levels of concussion-related knowledge and attitudes.This study examined factors associated with concussion-symptom knowledge and care-seeking attitudes among parents of MS children(aged 10-15 years).Methods:A panel of 1224 randomly selected U.S.residents,aged ≥18 years and identifying as parents of MS children,completed an online questionnaire capturing parental and child characteristics.The parents’concussion-symptom knowledge was measured using 25 questions,with possible answers being“yes”,“maybe”,and“no”.Correct answers earned 2 points,“maybe”answers earned 1 point,and incorrect answers earned 0 point(range:0-50;higher scores=better knowledge).Concussion care-seeking attitudes were also collected using five 7-point scale items(range:5-35;higher scores=more positive attitudes).Multivariable ordinal logistic regression models identified predictors of higher scores.Models met proportional odds assumptions.Adjusted odds ratios(aORs)with 95%confidence intervals(95%CIs)(excluding 1.00)were deemed statistically significant.Results:Median scores were 39(interquartile range:32-44)for symptom knowledge and 32(interquartile range:28-35)for care-seeking attitude.In multivariable models,odds of better symptom knowledge were higher in women vs.men(aOR=2.28;95%CI:1.71-3.05),white/non-Hispanics vs.other racial or ethnic groups(aOR=1.88;95%CI:1.42-2.49),higher parental age(10-year-increase aOR=1.47;95%CI:1.26-1.71),and greater competitiveness(10%-scale-increase aOR=1.24;95%CI:1.13-1.36).Odds of more positive care-seeking attitudes were higher in white/non-Hispanics vs.other racial or ethnic groups(aOR=1.45;95%CI:1.06-1.99)and in older parental age(10-year-increase aOR=1.24;95%CI:1.05-1.47).Conclusion:Characteristics of middle school children’s parents(e.g.,sex,race or ethnicity,age)are associated with their concussion-symptom knowledge and care-seeking attitudes.Parents’variations in concussion knowledge and attitudes warrant tailored concussion education and prevention.     

《出版物市场管理概论》读后

出版物市场管理管什么?一是要管出版物,二是要管市场.但是仅这样说还不完整全面.市场中有买方、供方,有生产者、经营者、消费者,这是市场主体.买方、供方都要经营商品即出版物,也就是市场客体.市场主体经营出版物要发生一系列市场行为,市场行为要健康有序,为此必须对市场进行监管.所有这些构成了出版物市场管理的基本要素.可见,出版物市场管理不仅要管出版物,管市场,还要管出版主体.     

语义计算的本体和约束

语义计算的目的是在用户和计算机共享的涵义和词汇的基础上设计和操作信息系统.它旨在缩小语义差距,使用户和信息系统能更好地协同工作,从而在语义学意义上使我们的生活更加丰富.文章将探讨以本体和约束为主要技术来实现用户和信息系统之间的涵义共享.