共查询到20条相似文献，搜索用时 46 毫秒
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郑光宇 《喀什师范学院学报》2002,23(6):49-56
20世纪80年代以来．基因工程技术在农业上的应用取得了斐然成果，植物基因工程已成为农业绿色革命的最重要技术手段，为此对植物基因工程中目的基固的克隆，载体构建的研究进展作了综合评述． 相似文献
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Jasmine M. Shah 《Resonance》2013,18(4):336-344
The story of Agrobacterium has been widely discussed for over a century. Fridiano Cavara in 1897 first described the occurrence of plant-derived tumors with bacterial origin. Detailed molecular analysis of this microbe accelerated in the last 30 years and it gained worldwide acceptance as a ‘natural genetic engineering tool’. This tool has an interesting history starting from the tumors that it makes, nomenclature, genome, pathogenicity and DNA transfer, to its economic importance. This review is a glimpse of some basic and interesting facts of the unique Agrobacterium. 相似文献
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边虹 《黑龙江教育学院学报》2011,30(7):16-17
基因工程技术的发展给人类带来了巨大的利益,对人类和社会生活也产生了巨大的影响,它的发展趋势是不可逆转的。面对基因工程技术所带来的前所未有的挑战,传统的生命伦理道德要随着技术的进步提出新的实践规范,基因工程的发展也要适应生命伦理道德的框架。只有在基因工程技术进步与生命伦理道德发展的相互互动中,才能真正减少基因工程技术所带来的伦理问题的负面效应。 相似文献
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近年来,植物基因工程研究取得飞速发展,在促进农业生产方面发挥了巨大作用.综述了植物基因工程主要研究方法及其目前的应用现状,并对植物基因工程产品的安全性问题作了分析. 相似文献
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胡银茂 《宁波教育学院学报》2006,8(2):43-46
遗传改良在水产养殖中具有重要的作用。在各种改良方法中,选择育种是目前应用最广泛的方法,而基因工程育种将会在水产物种改良中起重要的作用。但对水产物种的遗传改良不应降低种群的遗传多样性,以致危害人类健康和社会伦理。 相似文献
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软件工程思想在计算机语言类课程教学中的贯彻实施 总被引：3，自引：0，他引：3
软件工程已成为国内各高校计算机相关专业的一门重要课程。但由于在低年级的计算机语言类等相关课程中没有能够始终贯彻软件工程思想,导致学生出现学习的负迁移,极大地影响了后期软件工程等课程的教学效果。在阐明软件工程思想对计算机专业人才重要性的基础上,进一步分析了语言类课程教学过程中怎样贯彻软件工程思想,做到软件工程思想四年教学不断线,并在实践中取得了较好的教学效果。 相似文献
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基因工程药物临床应用分析 总被引：1，自引：0，他引：1
目的：基因工程药物带来了治疗学的新突破，在临床治疗中日益发挥举足轻重的作用。基于现代生物技术的发展要求。促进基因工程药物的合理使用。方法：从本院药库药品明细帐上一获得基因工程药物有关信息，对本院近四年来基因工程药物的临床应用进行了统计分析。结果：基因工程药物临床应用品种逐年增加，销售金额不断增长，临床用途越来越广泛。结论：基因工程药物疗效确切、使用安全、不良反应少，在糖尿病、心血管疾病等方面具有广泛的应用前景。 相似文献
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Rola Khishfe 《International Journal of Science Education》2013,35(17):2928-2953
The purpose of this study was to (a) investigate the effectiveness of explicit nature of science (NOS) instruction in the context of controversial socioscientific issues and (b) explore whether the transfer of acquired NOS understandings, which were explicitly taught in the context of one socioscientific context, into other similar contexts (familiar and unfamiliar) was possible. Participants were 10th grade students in two intact sections at one high school. The treatment involved teaching a six-week unit about genetic engineering. For one group (non-NOS group), there was no explicit instruction about NOS. For the other group (NOS group), explicit instruction about three NOS aspects (subjective, empirical, and tentative) was dispersed across the genetic engineering unit. A questionnaire including two open-ended scenarios, in conjunction with semi-structured interviews, was used to assess the change in participants’ understandings of NOS and their ability to transfer their acquired understandings into similar contexts. The first scenario involved a familiar context about genetically modified food and the second one focused on an unfamiliar context about water fluoridation. Results showed no improvement in NOS understandings of participants in the non-NOS group in relation to the familiar and unfamiliar contexts. On the other hand, there was a general improvement in the NOS understandings of participants in the NOS group in relation to both the familiar and unfamiliar contexts. Implications about the transfer of participants’ acquired NOS understandings on the basis of the distance between the context of learning and that of application are highlighted and discussed in link with the classroom learning environment. 相似文献
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Catherine Mobley Catherine E. Brawner 《Community College Journal of Research & Practice》2013,37(5):353-369
ABSTRACTCommunity colleges have long been recognized as pivotal institutions for broadening educational opportunity for a variety of marginalized populations, including first-generation students. These institutions are also an important starting point for students desiring to eventually earn a bachelor’s degree in a science, technology, engineering, or mathematics discipline. Our qualitative study explores the experiences of 15 first-generation community college transfer students majoring in engineering. We use the theory of community cultural wealth and the concepts of experiential capital and transfer student capital as lenses for analyzing and interpreting our semistructured interview data and for formulating recommendations to improve the transfer experiences and educational outcomes of this population. This sample of students enacted several types of community cultural wealth and experiential capital when navigating the engineering transfer pathway and in their engineering studies. They were less likely to enact the elements of transfer student capital, however. Instead, our results indicate that the participants attribute their successful transitions to their self-motivation and initiative associated with community cultural wealth and experiential capital, rather than institutional interventions associated with transfer student capital. We conclude with recommendations for strengthening institutional programs directed at first-generation engineering transfer students. 相似文献
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企业对高等工程教育的参与、支持体系的构建 总被引：1，自引：0，他引：1
在构建国家创新体系的进程中,企业与高校承担着相同的重要使命。而高等工程教育离不开工业企业全方位的参与和支持。学习借鉴发达国家高等工程教育企校合作的成功经验,结合中国实际,采取多种措施,尽快建立和完善高等工程教育与企业发展紧密结合的制度与体制,使企业全过程、多层次参与高等工程教育,形成校企共同培养高级工程技术人才、促进科技创新与转化的新机制。 相似文献
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用微生物、植物、动物、人细胞或者专一性酶,通过生物方法将原料转化为特定产品的容器称为生物反应器（Bioreactor）.生物反应器的发展经历了三个阶段：细菌基因工程、细胞基因工程和转基因动物生物反应器.转基因动物生物反应器可以缩短重组蛋白的生产时间,具有很多优点,同时携带目的基因的阳性细胞克隆还可以长期冻存,长久作为核移植的供体,能够重复生产转基因动物. 相似文献
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植物基因工程的最初目标是创造出优质高产、抗病虫害、抗早、耐盐碱等优良性状的作物新品种。随着高效基因载体系统和遗传转化技术的发展,植物基因工程技术又出现一个新的生长点,即利用转基因植物生产药物。本文就该领域的研究进展及应用前景作一简介。 相似文献
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Genetic engineering: A matter that requires further refinement in Spanish secondary school textbooks
M. V. Martínez-Gracia M. J. Gil-Quýlez J. Osada 《International Journal of Science Education》2013,35(9):1148-1168
Genetic engineering is now an integral part of many high school textbooks but little work has been done to assess whether it is being properly addressed. A checklist with 19 items was used to analyze how genetic engineering is presented in biology textbooks commonly used in Spanish high schools, including the content, its relationship with fundamental genetic principles, and how it aims to improve the genetic literacy of students. The results show that genetic engineering was normally introduced without a clear reference to the universal genetic code, protein expression or the genetic material shared by all species. In most cases it was poorly defined, without a clear explanation of all the relevant processes involved. Some procedures (such as vectors) were explained in detail without considering previous student knowledge or skills. Some books emphasized applications such as the human genome project without describing DNA sequencing. All books included possible repercussions, but in most cases only fashionable topics such as human cloning. There was an excess of information that was not always well founded and hence was unsuitable to provide a meaningful understanding of DNA technology required for citizens in the twenty-first century. 相似文献
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Being a modern electrical engineer does not only require state of the art skills in areas such as transfer and processing of information, electronics, systems engineering, and biomedical electrical engineering; it also requires generic engineering skills such as oral and written communication, team building, interpersonal skills, and the ability to take the responsibility of solving assigned tasks. In the development of a new electrical engineering curriculum, it was considered a challenge to introduce these generic engineering skills in a more applicable way. The approach described in this paper has been very successful in implementing and maintaining a challenging first year project based engineering course with a high level of training of generic engineering skills. 相似文献
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土壤农杆菌在植物基因工程中的应用 总被引：1，自引：0，他引：1
郑光宇 《喀什师范学院学报》2004,25(3):51-54
利用土壤农杆菌转入外源基因是植物基因工程中的有效手段．为此，对土壤农杆菌转化系统中的载体系统、土壤农杆菌转化植物的分子机制以及土壤农杆菌在基因工程中应用的研究进展作了综合评述。 相似文献
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为更好地适应基因工程技术的不断发展,开设《基因工程实验技术》,使其从《基因工程》实验教学中独立出来。通过5年来在教学实践中积累的经验和体会,对实验平台、教学体系和设置“必+选”实验模式等内容进行了充实和改革,并取得了一定的教学效果。 相似文献