中学英语朗读教学点滴体会

英语朗读对中学英语教学具有促进作用，忽视朗读将产生反作用，应采取有效的措施和方法。     

高职大学生英语学习动机和取向的调查研究

本文调查了非英语专业一年级高职大学生英语学习的动机和取向，并运用因子分析和多元回归分析对数据进行了分析。分析结果显示，最能反映学生英语学习动机的四种取向为：学业（工具型）取向、知识取向、事业（工具型）取向、社交取向；这四种取向可以解释83％的动机。     

网络安全系统配置规则管理算法设计与实现

阐述网络安全系统的整体构架,讨论该系统的配置规则管理算法,详细介绍命令动态配置树的设计与实现,最后,就运用于该系统中的算法性能进行相应的分析.     

试论我国高校创新体系内涵

本文从高等学校创新体系这一概念的提出入手,较为系统地对当前我国高教理论界颇具代表性的高等学校创新体系的表述进行了辨析,在此基础上,提出了新的表述并对其内涵进行了全新的阐述.     

论李煜前期词与南唐亡国之关系

李煜的前期词与其性格是统一的,它们都受唐五代词风的影响,同时又是南唐社会的一个缩影,这些因素综合在一起,决定了南唐必然亡国的命运。本文就是从这个角度讨论了李煜前期词与其亡国的关系。     

Tandem Biocatalysis by CotA-TJ102@UIO-66-NH2 and Novozym 435 for Highly Selective Transformation of HMF into FDCA

2,5-Furandicarboxylic acid(FDCA) is a potential biorenewable chemical for applications including plastics, polyamides, drugs, etc. The selective biosynthesis of FDCA from 5-hydroxymethylfurfural(HMF) by a specific enzyme poses a great challenge. In this study, we reported an efficient strategy to produce FDCA from HMF by the tandem biocatalysis of laccase(Cot A-TJ102@UIO-66-NH_2) and Novozym 435. For the first step, a nanoparticle metal–organic framework was synthesized as a carrier to immobilize Cot A-TJ102@UIO-66-NH_2, which was assigned for the production of 5-formyl-2-furancarboxylic acid(FFCA) and featured an enzyme loading of 255.54 mg/g, specific activity of 135.90 U/mg, and solid loading ratio of 99.65%. Under optimal conditions, an ideal FFCA yield of 98.5% was achieved, and the Cot A-TJ102@UIO-66-NH_2 presented a high recycling capacity after 10 cycles. For the second step, Novozym 435 was applied for the further conversion of FFCA into FDCA, presenting a high FDCA yield of 95.5% under the optimized conditions. Novozym 435 also exhibited a high recyclability after eight cycles. As a result, the tandem biocatalysis strategy provided a 94.2% FDCA yield from HMF, indicating its excellence as a method for FDCA production.     

东汉草书艺术的演变及其精神内质

西汉末至东汉中后期，草书体确立，并由为交流而书写的实用工具升华为一种以审美为最高目标的艺术。这一由实用到审美的演变，不仅标志着中国艺术的观念由非自觉到自觉的飞跃，而且蕴涵了东汉士人精神世界中个体生命意识的自觉和艺术精神的萌生。这一变化，与东汉时期社会思潮的兴替变迁密切相关。     

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.     

氯地酚和FSH对猕猴超数排卵的比较及其在兔输卵管内受精的研究

在不考虑月经周期的情况下连续灌喂氯地酚5天,每天50mg,第8天肌注hCG2000IU,对猕猴具有一定的卵泡超数发育作用,最多可使双侧卵巢共24个卵泡发育,最大卵泡直径5—6mm,但不同个体反应变化较大。FSH hCG超排方案(考虑或不考虑月经周期,连续肌注FSH6天,共80—90IU,第8天肌注hCG2500IU)比氯地酚效果较好,最多可使双侧卵巢共28个卵泡发育,卵泡最大直径10mm,另外在1只猕猴观察到5个卵泡破裂将卵排出。电刺激采得之猕猴精子经洗涤后与用以上两种超排方案以卵泡吸得之卵子一同输入兔输卵管进行受精,获得2个原核期受精卵和1个桑椹胚。