“化学拔尖计划”“强化实验”课程平台建设与实践

介绍了厦门大学专门为"化学学科拔尖学生培养试验计划"学生个性化培养"量身定制"的"强化实验"课程建设的基本思路、实验内容设计、"动态"教材建设与教学实践情况。以期更好地为高校化学实验教学改革提供适应面广、操作性强的可借鉴经验,也为今后更好地实施"化学学科拔尖学生培养计划"2.0提供参考。2016年度教育部“基础学科拔尖学生培养试验计划”研究课题2017年福建省本科高校教育教学改革研究项目(FBJG20170295)2017年度厦门大学教学改革研究项目(JG20170204)国家基础科学人才培养基金项目(J1310024

A Study on Stochastic Resonance for the Process of Active-passive Transition of Iron in Sulfuric Acid

本文描述了铁在硫酸中活化 钝化转移过程的双稳特征 ,并模拟出该过程的随机共振现象 .The bistable characteristics of the process of active passive transition of iron in sulfuric acid was described and the stochastic resonance phenomenon in the process was simulated.作者联系地址：中国科技大学应用化学系!安徽合肥230026,中国科技大学应用化学系!安徽合肥230026,中国科技大学应用化学系!安徽合肥230026,中国科技大学应用化学系!安徽合肥230026,Dept. of Chen.Univ.of Modenaand Reggio Enilia!41100Modena,ItalyAuthor's Address: Dept.of Applied Chem.,Univ. of Sci. and Tech. of China,Hefei 230026,China Renato Seeber Dept. of Chem.,Univ. of Modena and Reggio Emilia,41100 Modena,Ital

Determination of Anionic Surfactant by a Resonance Light-scattering Technique Using a Near-infrared Cationic Cyanine

应用共振光散射光谱研究了pH6.30磷酸盐缓冲介质中近红外阳离子花菁染料与阴离子表面活性剂的相互作用.由于形成离子缔合物,花菁的聚集形态发生了变化,导致共振光散射增强,最大散射峰波长位于823nm;根据共振光散射强度的增加值与加入的SDBS的浓度间存在的正比关系,建立了共振光散射法测定阴离子表面活性剂的新方法.考察了pH值、有机溶剂用量等对测定的影响.在最佳实验条件下,对SDBS检测的线性范围为4.0×10-8-6.0×10-6molL-1,检出限为1.4×10-8molL-1,相关系数r=0.9988.该方法简单快速,具有较高的分析灵敏度,用于环境水样中阴离子表面活性剂的测定,结果令人满意.The interaction between cationic cyanine dye and anionic surfactants sodium dodecyl benzenesulphonate(SDBS) in the phosphate buffer medium was studied using the resonance light scattering(RLS) technique.Due to the formation of the ion association complexes,the aggregations of cyanine have been changed,which result in the RLS enhancement with the maximum RLS peak at 823nm.And the enhanced intensity of RLS is proportional to the concentration of SDBS.Thus,a novel method for the determination of SDBS was developed.Also the effect of pH、 organic solvent on the determination have been investigated.Under the optimum experimental conditions,the linear range is 4.0×10~(-8)-6.0×10~(-6) mol L~(-1) for SDBS,the detection limit is 1.4×10~(-8) mol L~(-1) and the correlation coefficient is 0.9988.This method is simple,fast and sensitive.It was applied to the determination of trace amount of anionic surfactants in environmental water samples with the satisfactory results.国家自然科学基金(20575002

Expression Pattern Analysis of Rice bHLH Gene Family Members

作者简介: 李晓星( 1980- ) , 男, 硕士研究生. 通讯作者: chenlg@ xmu.edu. cn, zhangdb@sjtu. edu. cn[中文文摘]为了研究碱性-螺旋-环-螺旋(basic-helix-loop-helix,bHLH)转录因子的生物学功能,通过对开源数据库TIGR中水稻基因序列的预测,我们找到了水稻中的部分bHLH转录因子家族成员.用反转录-聚合酶链式反应(RT-PCR)的方法在水稻根、茎、叶、花和种子中,对这些成员的表达模式进行分析,然后与已有的拟南芥的表达信息进行比较.结果显示,部分序列相似度较高的bHLH基因,表达模式也较为相似,说明其在功能上可能存在联系.[英文文摘]To study the biologica l function of the bHLH (basic-helix- loop-helix ) transcription factors, according to the prediction result from the rice gene sequences, we obtained some members o f the bHLH transcription factor fam ily. RT-PCR w s performed to detect the expression pattern of these members in the roo,t stem, leaf, flower and seed of rice. Then the re sult w a s com pared to the expression pa-ttern o fArabidop sis. We found that genes with the similar sequences in both Arabido psis and ricem ight have similar expression patterns,this indicates that they may have functiona l similarity.国家科技部国家重点基础研究发展项目(2005CB120802);福建省青年人才创新项目(2005J004)资

中国鼠疫自然疫源地分型研究Ⅶ.中国鼠疫自然疫源地分型生物学特征/Ecological-geographic landscapes of natural plague foci in China Ⅶ.Typing of natural plague foci[J]

目的 研究中国鼠疫自然疫源地分型.方法 根据中国鼠疫自然疫源地鼠疫生态地理景观学、鼠疫耶尔森菌基因组学、鼠疫宿主动物学、鼠疫媒介昆虫学特征,提出“鼠疫生物地理群落指征、两级分型法和三项指征命名法”；区划中国鼠疫自然疫源地型及其亚型.结果 中国鼠疫自然疫源地分为12型19亚型.阐明中国鼠疫自然疫源地生物学特征.结论 中国鼠疫自然疫源地型及其亚型的划分,为掌握其生物学基本规律奠定基础