花生肽体外抗氧化活性的研究

花生肽是花生蛋白质经过控制性的水解、精制以后得到的一类活性肽。本文对通过Alcalase碱性蛋白、Protamex复合蛋白酶和Neutrase中性蛋白酶水解花生分离蛋白制备的花生肽的体外抗氧化活性进行研究。采用亚油酸-硫氰酸钾方法、脱氧核糖方法和邻苯三酚方法测定花生肽的抗亚油酸过氧化能力、清除羟自由基能力和清除超氧阴离子的能力,从而对花生肽的体外抗氧化活性进行评价。结果表明用Alcalase碱性蛋白酶水解得到得花生肽抗氧化活性最强。     

褐藻胶寡糖激发子活性研究

寡糖可作为激发子诱导植物产生抗性反应,提高防御酶活力,积累植保素,从而增强自身的抵抗力.本实验利用细菌AGN12的胞外酶对褐藻胶进行生物降解,得到不同聚合度的寡糖样品.实验结果表明,褐藻胶寡糖能激活大豆子叶的防卫系统,诱导合成和积累较多的植保素,并且对大豆子叶防御酶有良好的诱导作用.     

论井村雅代的动作编排与训练方式

井村雅代担任中国花样游泳队主教练期间,其动作编排的核心理念是凸显东方文化,选取动作形态的准则是因地制宜,训练目的则在于增强队员艺术表现能力,从而确立了刚柔相济的艺术表现风格。     

虞、夏、商、周的孝悌文化初探

孟子说：＂尧舜之道,孝悌而已矣。＂表明孝悌之道是尧舜以来中华民族的优良传统。历考古代文献,我们不难发现：尧舜时期已有孝悌萌芽,夏代有忠德流行,商代则是悌道大盛,周人比较全面地形成了孝悌风俗,这些都是孔子系统孝悌思想形成的历史资源。孟子说孔子乃＂集大成＂者,其于孝悌思想亦然。     

An approach to develop physics student teachers＇ skills of using instructional technology

It is very important to develop student teachers＇ skills and knowledge during the pre-service teacher education process. In this study, the effectiveness of the approach in which student teachers＇ gained skills of developing and using TGMs （teacher-guided materials） based on integration of technology on physics education in STMC-Ⅱ （Special Teaching Methods Course-Ⅱ） for pre-service physics teachers was evaluated. The study was conducted with 33 physics student teachers in KTU （Karadeniz Technical University）. Student teachers were required to develop and present TGMs, which were based on principles of special teaching approaches and techniques and integration of technology through instruction. The data of the study were gained from semi-structured interviews conducted with 14 student teachers, observations of the lessons conducted by each student teacher and document analysis of the student teachers＇ diaries collected during the term. The student teachers stated that STMC-11 was a very helpful experience to gain teaching skills. It is believed that all these activities, which are designed and performed in the classroom by student teachers during STMC-Ⅱ course, will not only prepare them for their teaching but also help them gain basic experiences that they will need in their future career. At the end of the process, it is concluded that all the student teachers gained nearly the whole defined aims--skills and knowledge of the STMC-Ⅱ. The implementation process should be organized very well to have advance of gaining many skills together. Key words： physics student teacher; STMC-Ⅱ; the skills of developing TGMs and integration of technology     

法国释意理论对我国口译研究与教学的启示

释意理论是以达尼卡·塞莱丝柯维奇为代表的法国释意学派在口译研究与实践中研究创立的口译研究理论体系,我国学者对释意理论的发展做出了积极的贡献。本文拟通过对释意理论的研究和阐述,展望我国口译研究和教学的发展,为口译研究和教学提供参考。     

运用生物学史培养学生生物学素养

以"酶的发现史"为例,从科学态度和科学的世界观、科学探究方法和技能、STS、生物学知识四个方面探讨如何运用生物学史在课堂教学中培养学生的生物学素养.     

多义动词的词义消歧策略

多义动词的歧义消解在词义消歧研究中占有重要的地位。本文在语料库词义人工标注工作的经验基础上,在从可利用的词汇知识资源、消歧策略的内部构成和原理层次、机用词典中动词义项分立等几个方面分析了动词词义消歧问题。提出了一个由动词词义知识库、语料信息、综合处理器三大部分,以及语法功能、语义关系、使用经验三个层面构成的动词词义消歧策略,并从这个角度对用于机器自动消歧的动词义项分立规则提出改进意见。     

让祖孙“情”更浓，“乐”更真！——爷爷奶奶与“隔代教养”

新年伊始,“祖孙乐”这个新栏目与读者见面了。 孩子的成长,不仅关系着家庭的快乐和幸福,更关系着祖国的未来。在当今社会条件下,很多家庭把第三代的教养推向爷爷奶奶;而“隔辈疼”的传统,又使许多的爷爷奶奶“爱”得无边,“给”无止境。     

“温度对酶促反应的影响”实验的改进

全国中等卫生学校《生物化学》第三版教材实验三“温度对酶促反应的影响”,笔者在多年的实验教学过程中发现,按教材要求的时间制备煮沸唾液,不能使酶完全变性;在实验过程中,由于实验条件不易准确控制等原因,实验结果不够理想,出现与预期结果不符的多种颜色变化。现对本实验进行如下改进：