教学疾病范畴论

正如人这个有机体容易患上疾病一样,教学这个多元而复杂的系统,在不当的运作方式和内外异常因素的浸染之下,也容易患上这样或那样的疾病。我们认为,教学疾病就是指教学系统在内外异常因素的影响之下,教学功能不能或不能很好地得以发挥,以至于产生很多不良作用的不正常状态。研究发现,教学疾病具有直接传染性、整体破坏性、影响长期性三个基本特征。①本文在前期研究(见拙文《教学病理初探》)之基础上,主要对教学疾病的范畴作些分析。一、教学专制所谓教学专制主要是指教师带着社会赋予他的与职业俱来的权力,凌驾于学生之上,以种种神圣的理由…     

Investigation of iodine concentration in salt,water and soil along the coast of Zhejiang,China

Objective: We aim to describe the environment iodine concentration in salt, water and soil along Zhejiang Province coast in the China foreland. It will be helpful for us to judge whether this area is insufficient in iodine and universal iodized salt is necessary or not. Methods: We collected iodized salt samples, drinking water samples (tap water in the towns, and well water or spring water in the villages), water samples from different sources (ditches, lakes, rivers) and soil samples through random sampling in June, 2005. Salt, water and soil iodine was detected by arsenic-cerium redox method. Statistical analysis was expressed as mean±SEMby Windows SPSS 13.0. Results: (1) The iodine concentration in salt was 27.9±4.33 mg/kg (n=108). (2) Seventy-five water samples were collected. The water iodine value was 0.6～84.8 μg/L (mean of 11.66 μg/L). The watershed along the Qiantang River has significantly higher iodine content than the water in Lin'an in mountain area (P＜0.01). The iodine content and mean iodine content of tap water, well or spring water and natural water sources were 4.30±2.43 μg/L (n=34), 23.59±27.74 μg/L (n=19)and 12.72±10.72 μg/L (n=22) respectively. This indicated that among environmental water sources, the ditch iodine content was the highest with river water iodine being the lowest (P＜0.01). (3) Soil iodine value was 0.11～2.93 mg/kg (mean of 1.32 mg/kg).Though there was no statistical difference of soil iodine in different districts (P=0.131), soil iodine content correlated positively with water iodine content. Conclusion: Iodine concentration in salt accords with national policy of adding iodine in salt. Foreland has more iodine in water than mountain area. The data reflected that water and soil iodine in foreland area was not high, which suggests universal iodized salt should be necessary. Environment iodine has relatively close association with pollution.     

英汉委婉语比较

委婉语是英汉语言中共同的语言现象,它源于社会禁忌,既有宗教性、阶级性,又有时代性,在不同程度上反映了某一国家、地域和时代所认同的思维模式、价值观和道德观等;同时,折射出中西方形态各异的社会文化背景,反映出形形色色的社会心理状态和语言文化内涵。     

奇妙的人体(十) 流动的血液和跳动的心脏

血液是在我们身体的心脏和血管内流动的不透明的液体,它是红色的。血液不停地流动着。把血液从心脏运送到全身各部分的血管是动脉,而输送血液返回心脏的血管是静脉。     

这些食物防过敏

很多妈妈喜欢在春季带宝宝外出游玩,沐浴阳光。可殊不知,在这个季节,各种花粉会在空气中形成飘浮物,对于那些抵抗力不强的宝宝来讲,吸入体内就容易引起呼吸道及皮肤过敏。不过,妈妈们可以通过食物来预防和辅助治疗宝宝的过敏。蜂蜜:蜂蜜中含有微量的蜂毒,而蜂毒在临床医学中常被用于支气管哮喘等过敏性疾病的治疗。另外,蜂蜜里还含有一定的花粉颗粒,经常喝会对花粉过敏产生一定的     

夏末秋初须防肠道疾病

每年的夏末秋初都是一个比较关键的时令．不少抵抗力弱的人开始受到疾病的“偷袭”,因此患病者人数增多。专家提醒同学们,应注意预防感冒及肠胃疾病,保持室内空气流通。     

上苍公正观的发展研究与启示

面对一个人先前的过失行为与后来遭到的灾祸,儿童会做出上苍公正的判断,认为灾祸是由先前过失行为造成,是上苍的惩罚.文章回顾了上苍公正观的内涵和年龄发展趋势,上苍公正与公正世界信念、疾病认知的相关研究,并提出未来的研究应考虑概念范畴、方法控制、文化背景等多方面的因素,通过适当的教育干预措施促进儿童公正观念的发展.     

痴鸟

诗人是一种痴鸟,他把他柔软的心窝紧抵着蔷薇的花刺,口里不住地唱着星月的光辉与人类的希望,非到他的心血滴出来把白花染成大红他不住口。他的痛苦与快乐是深沉的一片。——题记     

我的“心脏”哥哥

我要说的这个"心脏"哥哥,第一他不是我的亲哥哥,而是我的美术老师,第二他的名字不叫心脏,他叫陈新,因为"新"和"心"同音,我们都叫他"心脏"。他长得胖乎乎的,个子也不高,总是带着一副很酷的黑边眼镜。他最大的特点就是,所有的东西在他手里都会变成画画     

例析神经系统受损引起的几种疾病

一、植物人 一些人大脑皮层功能严重受损,处于不可逆的深昏迷状态,并丧失意识活动,但皮质下中枢可维持自主呼吸运动和心跳,此种状态称“植物状态”,处于此种状态的患者称“植物人”。