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991.
T. Padmanabhan 《Resonance》2009,14(5):499-507
The fact that an accelerated charge radiates energy is considered an elementary textbook result in electromagnetism. Nevertheless,
this process of radiation (and its reaction on the charged particle) raises several conundrums about which technical papers
are written even today. In this installment, we will try to understand why an accelerated charge radiates in a simple, yet
rigorous, manner. 相似文献
992.
T. Padmanabhan 《Resonance》2009,14(8):799-806
We continue our exploration of random walks with some more curious results. We discuss the dimension dependence of some of
the features of the random walk, describe an unexpected connection between random walks and electrical networks and finally
discuss some remarkable features of random walk with geometrically decreasing step-length. 相似文献
993.
994.
by John Coldron Ben Willis Claire Wolstenholme 《British Journal of Educational Studies》2009,57(3):245-264
ABSTRACT: This paper presents the findings from a study of the admission arrangements for all secondary schools in England. We sketch the history of selection, answer questions about the scale and extent of selection by attainment or aptitude including an account of partially selective schools, consider the similarity and differences between selection by aptitude and by attainment and analyse some of the issues associated with both kinds of selection. 相似文献
995.
The role of ethnicity in the attainment and experiences of graduates in distance education 总被引:1,自引:0,他引:1
John T. E. Richardson 《Higher Education》2009,58(3):321-338
In the UK, the attainment of White graduates (as measured by the class of honours that they have been awarded) tends to be
higher than that of graduates from other ethnic groups. This is apparent, in particular, in graduates who have taken courses
by distance learning with the Open University. Analysis of data from Open University graduates over three successive years
yielded no evidence that the latter trend could be attributed to confounded demographic variables. A postal survey found little
variation in perceptions of academic quality or reports of personal development among Open University graduates from different
ethnic groups. Quantitative variations in the attainment of graduates from different ethnic groups are not necessarily reflected
in qualitative variations in their experience of distance education. 相似文献
996.
Undergraduates’ learning experience and learning process: quantitative evidence from the East 总被引:2,自引:0,他引:2
Beverley J. Webster Wincy S. C. Chan Michael T. Prosser David A. Watkins 《Higher Education》2009,58(3):375-386
This article examines the construct validity of the Course Experience Questionnaire (CEQ) in Hong Kong and investigates the
similarities and differences in the process of learning among students in different disciplinary studies. It is based on a
survey of 1,563 undergraduate students in two disciplines, humanities and sciences, and of principally Chinese ethnicity.
Findings from exploratory and confirmatory factor analyses support the scale structure of the four subscales of a modified
version of the CEQ (good teaching, clear goals and standards, appropriate work, and appropriate assessment) in a non-Western
context and could provide a basis for cross cultural research and international benchmarking. While there was variation across
subgroups, there was a genuine pattern of relationships between the perceptions of learning environment and learning strategies
shown by structural modeling. This information could be used to inform the design of discipline-specific programs in the new
curriculum. 相似文献
997.
Researchers and practitioners alike express concerns about the conceptual difficulties associated with the concepts of momentum and kinetic energy currently taught in school physics. This article presents an in‐depth analysis of the treatment given to them in 44 published textbooks written for UK secondary school certificate courses. This is set against some of the more contentious issues apparent in the literature concerned with the underlying physics and pedagogical arguments about how best to help students understand. The research evolved a set of criteria which were used to scrutinize how texts explain ideas and exemplify their applications. Despite the evident merits of many textbooks, the findings suggest that incomplete explanations are surprisingly prevalent, with several fundamental issues likely to be unclear to student readers, particularly those relating to when and where conservation might apply. Confusion exists between these difficult and somewhat overlapping ideas, arguably through the neglect of constructivist considerations. The commonly emphasized mechanistic, number‐crunching approach to the analysis of simple collision problems is judged to be un‐profitable, underlining the more general point that prevailing, accepted content and pedagogy may be the source of many misunderstandings. Implications are discussed and suggestions made for alternative treatments of these deceptively complex topics. © 2009 Wiley Periodicals, Inc. J Res Sci Teach 46: 739–761, 2009 相似文献
998.
The international dimension of higher education has expanded rapidly in recent decades and private provision is becoming increasingly widespread in response to the diverse pressures of globalisation, rapid expansion in demand and increased pressures on public finances. As higher education has become marketised, opportunities for international providers have increased dramatically. Foreign providers may opt for delivery locally or remotely and via a variety of different legal and organisational arrangements. The focus of this article is on foreign provision of HE with specific reference to China and the UK. In the period post-Mao, the policy environment for higher education in China has changed dramatically, culminating in 2003 in the decision to allow foreign universities to formally establish partnerships with Chinese universities for the delivery of higher education. The development and operation of the University of Nottingham Ningbo, China, is discussed in order to provide more detailed insights into the nature and challenges of delivering foreign HE provision in a Chinese context. 相似文献
999.
Edwin·T 《课堂内外(高中版)》2009,(2)
在阳光照耀的美国加州,他生活了五个年头.除了学习.他也打过工,谈过恋爱,积累了众多在美国学习、生活和工作的经验,美国的大学里,聚集了众多来自世界各地的留学生.在这样一处充满世界色彩的地方,置身其中,会有着怎样的独特经历呢?应《课堂内外》高中版特邀,Edwin·T记录下他的留学生活,为可能或者梦想去美国留学的高中生,讲述他的种种感受。从本期开始,本刊将分多期连载该文。 相似文献
1000.
Tünde Varga-Atkins Mark O’Brien Diana Burton Anne Campbell Anne Qualter 《Journal of Educational Change》2010,11(3):241-272
Previous literature has demonstrated that networks can be valuable sources of professional learning. In 2005 all Liverpool
schools formed into ten Learning Networks with the aim of improving the quality, and entitlement of, continuing professional
development (CPD) for staff as part of a whole-scale local authority initiative. The Liverpool Learning Networks Research
explored professionals’ CPD experiences following this organizational change and whether it has enhanced their practice. Triangulated
data, a large-scale survey and qualitative interviews conducted in 2007, seem to suggest that where professionals benefited
from professional learning in a networked context, the quality of the networked CPD as well as a positive school culture and
intra-school collaboration were all important contributors to the success of networked-CPD. This finding can usefully apply
Turbill’s (Teacher learning for educational change. Open University Press, Buckingham, 94–114, 2002) model of professional learning to the intersection between school-based and networked-CPD, which suggests that it is at
this intersection between internal and external domains that teacher learning can take place. Two scenarios, where this interplay
between school-based and networked CPD is positive (enhancement) or negative (tension), are reported through five case studies
of professionals underpinned by the survey data, where relevant. 相似文献