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LastMonday,DavidNicol,Australiastopkidney(肾)doctor,suc-cessfullyremovedadiseasedkidneyfromawoman.Whatssounusualaboutthat?DavidNicolwasinhisofficeinAustraliawhilethewomanlayonanoperatingtableinNewZealand.Whatcon-nectedthemwasatechnologycalledre-motesurgery(远程手术).Remotesurgeryitselfisnotnew.In2001,agroupofdoctorsinNewYork,US,removedagallbladder(胆囊)fromapatientlyinginFrance.Itwasthefirstsuccessfulcaseofremotesurgeryusedonahumanacrossinternationalborders(国界).Now,Nicolsoperationisto… 相似文献
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王雨欣 《英语大王(小学)》2009,(5):26-26
candy是我们常吃的“糖”，baby在中文里是“婴孩”。在我们的印象里，小孩子都很喜欢吃糖，把糖从他们手里套走。他们一定会闹个不停，不好对付。不过，在英语中，take candy from a baby的意思却是“某件事狠容易办成”。请看下面这个例子： 相似文献
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The secret of a pigeon’s amaz-ing ability to find its way home has atlast been uncovered:they follow theroads and railways just like we do.鸽子即使远隔千山万水也能找到回家之路,这个一直令人惊诧不已的秘密终于被揭开了:它们像我们人类一样沿着公路和铁路回家。A homing pigeon’s natural so-lar and magnetic compasses are oftenless important than its knowledge of human transport routes,according toresearchers at Oxford University,UK.英国牛津大学研究者的调查表明,对于信鸽而言,自然界的指南针(来自太阳能和… 相似文献
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同学们,你想提高英语写作水平吗?你的英语习作想上本栏目show一下吗?那么,请行动吧!我们将为你提供一个能充分展示你英语写作水平的平台,让你尽情发挥,并将对你的英语习作进行定期评比,获奖者将被邀请参加由《中学生英语》组织的一年一度的英语夏令营活动。机会难得,莫错过哟! 相似文献
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Karin Täht Olev Must Kätlin Peets Rainer Kattel 《Educational Research and Evaluation》2013,19(4):255-274
This paper investigates the relationship between educational achievement and the motivation to learn. We used the 2006 Programme for International Student Assessment (PISA) that contains representative samples from 55 nations. A strong negative correlation between educational achievement and motivation toward science learning emerged at the national level. We found that differences in the socioeconomic levels of nations are associated with this unexpected negative correlation. Children from developed societies achieve higher educational results but may tend to be rather critical in describing their learning motivation, and vice versa, students from developing countries do not attain very high educational outcomes, but their motivation, as stated on the self-report questionnaires, is high. We offer different explanations for this phenomenon. The motivation to learn in relation to the level of development of countries is a moving target, and this should be taken into account at all levels of education policymaking, from schools to national governments. 相似文献
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Oral English is the major way of communicating.The contacts between China and other countries are becoming more and more frequent with the development of economy and society.Thus,the demands for a better communicating ability of English are becoming more and more notable in China. 相似文献
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ABSTRACTThe word ‘humanities’ does not appear in the current Northern Ireland Curriculum (NIC). Geography and history are taught within an Area of Learning called ‘The World Around Us’ which also contains science and technology. The curriculum has a strong emphasis on an integrated, ‘connected learning’ way of teaching and learning. Religious Education is a separate subject that stands alongside, rather than within, the NIC, and the curriculum also includes a new Area of Learning – ‘Personal Development and Mutual Understanding’. The distinctive content and modes of teaching which the humanities subjects tend to encourage ought to be seen as particularly important in Northern Ireland – a part of the UK which has endured a complicated past and remains to a large extent segregated, both socially and educationally. This complicated past means that there is often wariness and reluctance on the part of teachers towards tackling controversial personal and social issues in the primary school. 相似文献
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This study describes the massive open online course (MOOC) experiences of three educational technology scholars assuming the roles of learners. Adapting Carroll’s model of school learning as a theoretical framework, the study employed an autoethnography method to collect empirical data in three different MOOCs. Data analysis from regularly recorded journals revealed commonalities and differences in learner experiences. Based on the results, a refined version of Carroll’s model was produced to provide a foundation for future research and development into MOOCs. 相似文献
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Ann-Christine Wennergren 《Educational Action Research》2016,24(2):260-279
Professional learning is intended to improve teaching, benefit student learning and in the longer term improve achievement of targets in schools. When teachers take responsibility not only for their own learning but also for their colleagues’, it can lead to a shift in attitudes towards collaborative learning. This study presents an example of a professional learning community (PLC) based on teachers’ engagement in systematic inquiries. The aim of the study was to explore crucial factors during the process of critical friendship that could be related to a PLC. The research context was a series of shadowing sessions where teachers were expected to document teaching and provide feedback. The analyses are mainly based on documentation, in the form of shadowing logs produced when teachers study each other in action. Findings indicate that the role of critical friend was hard to internalise and that most of the teachers did not use it to its full potential for learning, according to the Vygotskian concept of the zone of proximal development. Three crucial factors for learning in a PLC are addressed: active choices related to teachers’ and students’ learning during different phases in the inquiry; the complexity of mastering several skills in action research at the same time; and the teachers’ attitudes to professional learning. 相似文献
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Anja Thorsten 《Educational Action Research》2017,25(1):140-154
The purpose of this article is to discuss and describe how a clinical research method can be used to generate knowledge about teaching and learning. This will be addressed from a teacher researcher’s perspective, taking a conducted Learning Study as the departure. Learning Study is an interventionist, iterative and collaborative research approach, focusing on the teaching of an object of learning. The actual study was conducted by a teacher researcher leading a teacher research team in a study about story-writing in primary school. The research process and the results are discussed using four areas that are described as dichotomies by Labaree (Labaree, D.F. 2003. “The Peculiar Problems of Preparing Educational Researchers.” Educational Researcher 32 (4): 13–22). Labaree states that teacher researchers need to go from being normative, experimental, personal and particular to being analytical, theoretical, intellectual and universal. By using examples from the Learning Study, I argue that these areas do not have to be seen as dichotomies; instead they can be combined and intertwined. Thus, in a Learning Study, elements from both the teaching practice and the academic practice matter, thus enhancing the possibility that results are useful for practitioners. 相似文献
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Glenda McGregor Martin Mills Kitty te Riele Debra Hayes 《International Journal of Inclusive Education》2015,19(6):608-625
In this paper, we draw upon the experiences of a group of young people who have been excluded from mainstream schools in two Australian states to provide an account of the ways in which they have found their way to education in educational sites that are variously referred to as ‘flexible learning centres', ‘second chance schools' and ‘alternative schools'. Whilst often clashing with school authorities in their original schools, these young people described how, when given the opportunity, they were able to engage in more meaningful learning in environments that recognised and accommodated their personal circumstances, and avoided authoritarian rule. A question we address is: What kinds of educational experiences facilitate ‘meaningful learning’ for these students? 相似文献
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Timothy Rodgers 《Higher Education》2013,66(5):535-550
This paper examines the question of how the high non-completion rates found amongst ethnic minority students in UK higher education should be interpreted. US studies examining the nexus between academic performance, ethnicity and social background have concluded that ethnicity-related performance differences are not just the by-product of social class. This study examines the nature of these linkages in the UK where the composition of the ethnicity mix and the nature of the socioeconomic environment are both markedly different from the US. The paper is based on a detailed case study of a cohort from a UK university that recruits a high proportion of its students from ethnic minority backgrounds. Prima facie evidence is found which questions the assumption that the under-performance of minorities should be treated predominantly as an ethnicity issue. It is found that after controlling for socioeconomic background, minority student non-completion rates are found to be very similar to those of their White peers. Further evidence is also uncovered which suggests that in practice there are considerable complexities in the ways in which ethnic differences impact on non-completion rates. From an educational policy perspective, it is argued that more effective results might be obtained if student support initiatives aimed at reducing the non-completion rates among minority student place a greater emphasis on issues relating to their socioeconomic background. 相似文献
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Hypocrellins,includinghypocrellinA (HA)andhypocrellinB (HB) (Fig .1) ,arenewtypesofphoto sensitivepigments growingabundantlyinChina[1,2 ] .Theyexhibitseveraladvantagesoverhaematoporphyrinderivatives (HPDs) presentlyusedinclinics[3] .Howev er,hypocrellinsarelipophilicagentsandexhibitweakab sorptioninthe phototherapeuticwindow (6 0 0— 90 0nm) ,whichpreventsfurtherinvestigationsontheirbio logicalconsequencesandlimitstheirPDTapplicationclinically .Fig .1 Chemicalstructuresofhypocrellinpare… 相似文献
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Dynamic Responses Analysis of a Building Structure Subjected to Ground Shock from a Tunnel Explosion
TIAN Li LI Zhongxian HAO Hong 《天津大学学报(英文版)》2006,12(B09):100-106
Dynamic responses of a multi-storey building without or with a sliding base-isolation device for ground shock induced by an in-tunnel explosion are numerically analyzed. The effect of an adjacent tunnel in between the building and the explosion tunnel, which affects ground shock propagation, is considered in the analysis. Different modeling methods, such as the eight-node equal-parametric finite element and mass-lumped system, are used to establish the coupling model consisting of the two adjacent tunnels, the surrounding soil medium with the Lysmer viscous boundary condition, and the multi-storey building with or without the sliding base-isolation device. In numerical calculations, a continuous friction model, which is different from the traditional Coulomb friction model, is adopted to improve the computational efficiency and reduce the accumulated errors. Some example analyses are subsequently performed to study the response characteristics of the building and the sliding base-isolation device to ground shock. The effect of the adjacent tunnel in between the building and the explosion tunnel on the ground shock wave propagation is also investigated. T.he final conclusions based on the numerical results will provide some guidance in engineering practice. 相似文献
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张发勇 《广西大学梧州分校学报》2002,(4)
This article intends to approach the translation of movie - titles from a different perspective - - - a functional perspective. Different titles may have different functions. In the process of translation, sometimes a certain function is maintained, sometimes changed. More often, a new function is added. 相似文献