园长水平漫议

幼儿园好比一台机器,要使它安全、正常、高效地运转,园长的“操作”十分重要。从某种意义上说,一所幼儿园搞得好不好,归根到底,要看园长的水平如何。对于园长的要求,《幼儿园工作规程(试行)》已明确提出了五个方面。以此为依据,我觉得,作为一名称职的园长,应当具有下述四种水平。一、政策水平园长面对的政策大致有两类。一类是国家和地方政府一般性的法规、法令及各种政策,适用于社会的每一个公民。另一类是有关幼儿教育的法规、法令及一系列政策,适用于幼儿园教育及幼儿园的各类人员。第一类政策大多与国家和个人的利益有关,贯彻执行好这类政策直接关系着调动教职工积极性的问题,如工资的晋升、     

母亲的心

去年夏天,上海的哥哥来电话说,很想念母亲,让我送她到上海住几天.母亲已是快80岁的人了,我怕她受不了长途颠簸,便决定买张卧铺票.当她得知要花300多元时,抿着干瘪的嘴唇,不容置疑地说:"我看就坐硬座吧!"     

高中-大学双学分课程体制的陷阱

2005年6月,俄勒冈立法机关通过一项支持建立高校毕业速成班的法案,该法案要求在全州范围内建立一种高中-大学双学分课程体制,允许高中三、四年级的学生选修高中和大学/学院入学考试都适用的课程。双学分课程计划的典型特征是高中学生选修社区学院的课程(社区学院在高中或学院内开课),学生在社区学院修完两年课程、取得结业证书之后可以转学到四年制大学攻读学士学位。双学分课程计划在美国越来越受欢迎。华盛顿州立法机关早在1990年就制定了一个名为《起跑线》(Running Start)的计划,允许就读11和12年级的学生自由选修该州34所技术与社区学…     

FLOSSWorld全球调查结果显示服务器更多使用开源软件

FLOSSWorld调查的主体由5部分构成,包括:个人(Private sector)、政府(Government sector)、开源社区参与者(Open Source participants community)、高校管理者(Heigher Education Institutes——Administrators)、高校信息部门主管(Heigher Education Institute——ITManagers)     

Synthetic and biological studies on a cyclopolypeptide of plant origin

Objective: A natural cyclic peptide previously isolated from Citrus medica was synthesized by coupling oftetrapep-tide units Boc-Leu-Pro-Trp-Leu-Ome and Boc-Ile-Ala-Ala-Gly-Ome after proper deprotection at carboxyl and amino terminals followed by cyclization of linear octapeptide segment.Methods: Solution phase technique was adopted for the synthesis of cyclooctapeptide--sarcodactylamide.Required tetrapeptide units were prepared by coupling of Boc-protected dipeptides viz.Boc-Leu-Pro-OH and Boc-Ile-Ala-OH with respective dipeptide methyl esters Trp-Leu-Ome and Ala-Gly-Ome.Cyclization of linear octapeptide unit was done by p-nitrophenyl ester method.The structure of synthesized cyclopolypeptide was elucidated by FTIR,1H NMR,13C NMR,FABMS spectral data and elemental analysis.The newly synthesized peptide was evaluated for dif-ferent pharmacological activities including antimicrobial,anthelmintic and cytotoxic activities.Results: Synthesis of sarcodac-tylamide was accomplished with >78% yield utilizing dicyclohexylcarbodiimide (DCC) as coupling agent.Newly synthesized peptide possessed potent cytotoxic activity against Dalton's lymphoma ascites (DLA) and Ehrlich's ascites carcinoma (EAC) cell lines,in addition to moderate anthelmintic activity against earthworms Megascoplex konkanensis,Pontoscotex corethruses and Eudrilus sp.Moreover,cyclopolypeptide displayed good antimicrobial activity against pathogenic fungi Candida albicans and Gram-negative bacteria Pseudomonas aeruginosa,in comparison to standard drugs griseofulvin and ciprofloxacin.Conclusion: Solution phase technique employing DCC and triethylamine (TEA) as base proved to be effective for the synthesis of natural cyclooctapeptide.N-methyl morpholine (NMM) was found to be a better base for the cyclization of linear octapeptide unit in comparison to TEA and pyridine.     

Developmental links of very early phonological and language skills to second grade reading outcomes: strong to accuracy but only minor to fluency

The authors examined second grade reading accuracy and fluency and their associations via letter knowledge to phonological and language predictors assessed at 3.5, 4.5, and 5.5 years in children in the Jyv?skyl? Longitudinal Study of Dyslexia. Structural equation modeling showed that a developmentally highly stable factor (early phonological and language processing [EPLP]) behind key dyslexia predictors (i.e., phonological awareness, short-term memory, rapid naming, vocabulary, and pseudoword repetition) could already be identified at 3.5 years. EPLP was significantly associated with reading and spelling accuracy and by age with letter knowledge. However, EPLP had only a minor link with reading fluency, which was additionally explained by early letter knowledge. The results show that reading accuracy is well predicted by early phonological and language skills. Variation in fluent reading skills is not well explained by early skills, suggesting factors other than phonological core skills. Future research is suggested to explore the factors behind the development of fast and accurate decoding skills.     

关于猫、黄金、老头和金字塔的三个不同故事

两位考古专家一同前去参观金字塔,晚上便住在开罗市郊的一家小旅馆里,一个人留在房间里面写工作日记,另一个人就上街闲逛。他在路边发现有一个老妇人在卖一只黑色的工艺猫,要价1000元。他忽然发现这只猫的两只眼睛竟是两颗大     

英国文学的新时代

《当代文学简介》是布斯在云南大学的讲稿,这里选译了其中的第一讲:“英国文学的新时代”和第十二讲:“威廉·萨默赛特·毛姆。”第一讲是英国当代文学概述,以后各讲均为作家评介,今后将继续选译部分作家评介。     

基于国家教育标准的地理教材

为进一步增强美国地理教育。我们要做的许多事情之一就是改进教材的质量。其中最主要的三个方面的任务是:(1)开发优良的教材,(2)利用教师联盟的在职培训网络和职前教育计划培训教师使用这种新教材,(3)通过提供强有力的课程指导,特别是将教材与师资培训和基于国家