功利主义主导下的人生价值观

在市场经济时代，功利主义成为社会的主流伦理思潮。怎样克服它的负面影响，发扬其积极作用，从而树立符合和顺应时代要求的人生价值观，是值得人们关注的问题。     

用单摆测重力加速度——一摆球的大小对测量结果的影响

本文论讨了在实验室里用单摆测重力加速度时,摆球的大小对测量结果的影响,指出摆长在一米左右,摆球直径在二厘米时,由摆球大小带来的误差,出现在重力加速度的第五位有效数字上。     

Simple groups with orders 2^a3^b5^cp^d, 2^a3^b7^cp^d and 2^a3^b5^c7^d

This work deals with the power exponent r1 and r2 respectively of the maximal and second-maximal prime factors ofthe order of simple K4-group, and the classification for simple {5,7}′-K4-group G (i.e. ｜G｜ can not be divided by 5 nor by 7 or ｜π(G)｜ = 4 ), simple 5′ -K4-group G (i.e. ｜G｜ can not divided by 5 and ｜π(G)｜ =4) and simple 7′-Ea-group G (i.e. ｜G｜ can notdivided by 7 and ｜π(G)｜ =4). It is derived that r1 =1, 2 and 4, and r2 is not greater than 4. All the simple K4-groups with order 2^a3^b5^cp^d, 2^a3^b7^cp^d and 2^a3^b5^c7^d are obtained.     

试析素质教育之现状与对策

素质教育是我国教育事业发展的一项基本国策，但是，素质教育的现状使其演化为“一张成绩通知单”，这些情况让我们对教育的生存与发展充满忧与思。找出素质教育实施的问题，寻觅素质教育深化的对策，应当成为我们教育界共同的课题。     

Kinesin KIF4A is associated with chemotherapeutic drug resistance by regulating intracellular trafficking of lung resistance-related protein

Multidrug resistance (MDR) is the major impediment to cancer chemotherapy. The expression of lung resistance-related protein (LRP), a non-ATP-binding cassette (ABC) transporter, is high in tumor cells, resulting in their resistance to a variety of cytotoxic drugs. However, the function of LRP in tumor drug resistance is not yet explicit. Our previous studies had shown that Kinesin KIF4A was overexpressed in cisplatin (DDP)-resistant human lung adenocarcinoma cells (A549/DDP cells) compared with A549 cells. The expression of KIF4A in A549 or A549/DDP cells significantly affects cisplatin resistance but the detailed mechanisms remain unclear. Here, we performed co-immunoprecipitation experiments to show that the tail domain of KIF4A interacted with the N-terminal of LRP. Immunofluorescence images showed that both the ability of binding to LRP and the motility of KIF4A were essential for the dispersed cytoplasm distribution of LRP. Altogether, our results shed light on a potential mechanism in that motor protein KIF4A promotes drug resistance of lung adenocarcinoma cells through transporting LRP-based vaults along microtubules towards the cell membrane. Thus KIF4A might be a cisplatin resistance-associated protein and serves as a potential target for chemotherapeutic drug resistance in lung cancer.     

《乘法的认识》

［教学目标］１．初步认识乘法，会列乘法算式，并能正确地读写。２．在经历乘法产生的过程中，培养学生的学习兴趣和自主探索、合作交流的良好习惯。３．沟通加法与乘法的关系，初步感受知识的产生是源于实践需要的观点。［教学重点］初步认识乘法的意义，正确地列出乘法算式。［教学难点］理解乘法计算比较简便的道理。［教学过程］一、情境引入（多媒体显示古人打猎记数的故事）教师：在很久很久以前，我们的祖先是以打猎为生的。如果这位猎人每天打两只猎物，两天能打几只？看谁最快列出算式。３天能打几只呢？５天呢？１０天、１００天…     

西域美丽风情的热情赞歌——论宋伯鲁西域诗的爱国情怀

清末诗人宋伯鲁的西域诗有自己独有的特点。他的西域诗维护民族团结和祖国统一,在诗中主张安民富民,尽情描绘祖国西陲河山的壮丽,物产的丰富,把这里的花花草草都写活了;他的《胡桐行》是描写胡杨的绝唱。     

大学英语课堂词汇教学策略初探

目前研究大学英语词汇教学方法,帮助学生提高词汇记忆效果,已成为众多教师探讨的热点话题.本文从大学英语课堂教学的角度出发,强调了词汇教学在大学英语教学中的重要性,并根据自己的教学实践,介绍了几种大学英语词汇教学方法.     

浅析中国画空白的哲学渊源及其运用

空白不仅是中国画形象的重要组成部分,也是中国绘画艺术特有的一种审美意识。为了更好地鉴赏和创作中国画,本文就空白的哲学渊源和运用略作论述。     

浅析惠州地区墙体材料的选择

本文通过对惠州地区建筑工程所用墙体材料的调查与分析, 并通过对烧结普通砖与新型墙体材料各项物理力学性能及经济指标的比较, 着重阐述了在实际工程当中惠州地区应广泛采用新型墙体材料的重要性, 以及大力推广墙体改革的必要性.