共查询到20条相似文献，搜索用时 15 毫秒
1.
Nature has provided a specific protein channel for each molecule to achieve rapid transport across the cell membrane. The
number of molecules exchanged in this process is as large as 109 per second. This article discusses this year’s Chemistry
Nobel Prize which was awarded for the discovery of the water channel —aquaporins and the elucidation of the structure ofpotassium ion channels. 相似文献
2.
Francis Dwyer 《Educational Media International》2013,50(4):248-257
Abstracts English: This paper focuses on and discusses the several levels of questions that need to be considered before planning and implementing a distance education programme. It also discusses systems procedures to be followed in developing pilot lessons (modules) prior to ‘rapid prototyping’. It concludes by providing a generic research plan for ensuring the development of sustained quality oriented learning materials. 相似文献
3.
Jo Deguara 《International Journal of Early Years Education》2018,26(1):4-23
This paper examines the schematic underpinnings in the drawings of a four-year-old girl, Thea. The paper reviews literature on graphic representations, signs and meaning-making before discussing schematic form in children’s drawings, the theoretical background for the study. The paper discusses ethical issues and methodological approaches to the study where data include drawings made at home and school, Thea’s recorded talk about drawings, and video recordings of her drawing sessions over a four-month period. These were coded manually and using NVivo to identify schemas. The paper discusses examples of Thea’s exploration of enclosure and trajectory schematic form, which are represented by rich content derived from her experiences and imagination. The paper concludes that Thea’s drawings included many schematic signifiers with clear evidence of complex thinking around enclosures and of vertical and horizontal trajectories. The paper evidences the importance of listening to children’s talk as they draw in order to understand more fully, the meanings they are making. Through signs, symbols and personal narratives, Thea used drawing as a meaningful semiotic space where her persistent schematic concerns were manifest. 相似文献
4.
Mogens Niss 《Educational Studies in Mathematics》1999,40(1):1-24
This paper offers an outline and a characterisation of the didactics of mathematics, alias the science of mathematics education, as a scientific and scholarly discipline, and discusses why its endeavours should be of interest to research mathematicians (and other mathematics professionals). It further presents and discusses a number of major, rather aggregate findings in the discipline, including the astonishing complexity of mathematical learning, the key role of domain specificity, obstacles produced by the process-object duality, students' alienation from proof and proving, and the marvels and pitfalls of information technology in mathematics education.This revised version was published online in September 2005 with corrections to the Cover Date. 相似文献
5.
Abstract This paper explores the consequences of globalization and rapid rural restructuring for our institutions of higher agricultural learning. It is essential for these institutions to make fundamental choices. This process of priority setting should not only be based on a continuous survey of the labour market but also on what the institutions themselves consider as challenging areas of activities. The paper discusses a number of necessary changes in the areas of targets and contents, institutional management, professionalization and strategy of higher agricultural education. 相似文献
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7.
Breakthrough is a new publicationproviding teachers with informationand activities about scientists pastand present. This short paper discusses theneed for such resources and describesinitial attempts to meet that need on aregular basis. 相似文献
8.
《Pastoral Care in Education》2013,31(2):30-39
This paper discusses the responses of a group of thirty-three primary and two secondary teachers to a series of sessions in which the ecosystemic approach to changing chronic problem behaviour in schools was explained and then tried out in practice. Three case examples are presented, as well as related discussions, which illustrate the approach. This study follows on from the work reported in Pastoral Care, December 1998. 相似文献
9.
Seán Ó. Grádaigh 《Irish Educational Studies》2013,32(2):165-182
This paper examines and discusses the profiles of applicants and entrants to the DGO (Dioplóma Gairmiúil san Oideachas) initial teacher education programme between 2000 and 2011. The DGO is the only initial teacher education programme in Ireland that is specifically designated to prepare student teachers for the second-level Irish-medium (SLIM) school sector. It is delivered entirely through the Irish language. This study examines data collected from all DGO applicants (N = 1002) between 2000 and 2011. Results show that demand for this programme has increased over the past decade. The academic quality of applicants has risen dramatically in recent years and 75% of successful applicants are female. The data show that a significant proportion of DGO applicants are native Irish speakers from Gaeltacht (areas in Ireland where the Irish language Gaeilge is the vernacular). There has been a severe shortage of applicants with qualifications in certain subject areas, in particular in Sciences, Mathematics and European languages. Drawing on findings from this study as well as on national statistics and educational policy documents, this paper discusses how changes to the DGO selection process may contribute to better meeting the staffing demands in SLIM schools in Ireland. 相似文献
10.
Kelly L. Heider 《Early Childhood Education Journal》2009,36(6):513-518
The rapid growth of information over the last 30 or 40 years has made it impossible for educators to prepare students for
the future without teaching them how to be effective information managers. The American Library Association refers to those
students who manage information effectively as information literate. Information literacy instruction has been a priority in many secondary schools since the American Association of School
Libraries published the Information Literacy Standards for Student Learning in 1998. Although these standards were written for grades K-12, information literacy is still not the focus in many early
childhood classrooms. This article discusses the importance of information literacy instruction in early childhood education.
Research suggests that early information literacy instruction, using informational texts and collaborative, teacher–librarian
curriculum planning, promotes critical thinking and increases the ability to problem-solve—two skills necessary for survival
in today’s Information Age. 相似文献
11.
This paper presents results from the evaluation of the Nurture thru Nature (NtN) programme, a natural science and environmental education intervention designed to help elementary school children from disadvantaged backgrounds increase their knowledge of science and strengthen overall academic performance. Using an experimental design the pilot NtN programme in New Brunswick, NJ was assessed in one elementary school for a period of four years. The evaluation revealed that NtN students (n = 18) consistently outperformed a group of controls (n = 34) in mathematics and science with the differences in science reaching statistical significance. The paper discusses the active learning philosophy that motivates NtN teaching, the programme components that operationalise this philosophy, and a natural history paradigm from which this philosophy derives. 相似文献
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13.
Different universities,different temporalities: placing the acceleration of academic life in context
Kathryn Telling 《Perspectives: Policy and Practice in Higher Education》2013,17(4):132-137
ABSTRACTA growing body of literature is encouraging academics to slow down their academic work as a way of managing the acceleration of university life. Little attention, however, has been paid to the important differences in temporalities among different sorts of higher education institutions, and the effect this is likely to have upon the sense of acceleration and, crucially, the capacity to resist it. This article discusses interview data with academics at a particularly ‘fast’ academic site, drawn from a broader comparative study of three very different sorts of institution. It argues that the culture at this university is fundamentally structured around the principle of rapid change, in marked contrast to both more research-intensive and more teaching-intensive institutions. Any advice about the management of change must, I argue, take into account the specifics of institutional situations as well as broader structural causes of institutional difference, if it is to prove effective. 相似文献
14.
Rebekka Horlacher 《课程研究杂志》2018,50(1):1-16
Discussions about the what, the when and the how of teaching and learning in schools deal in German-speaking countries with the term Lehrplan, while English-speaking countries discuss similar topics with the term curriculum. Yet, these two terms are not just exchangeable terms in two different languages, but imply also two different styles of reasoning or two different modes of thinking. By the examples of a Lehrplan designed by Georg Kerschensteiner for the Munich school in 1899 and two different Lehrpläne for the elementary school in the Swiss canton of Zurich, one from 1905, the other just currently being implemented, the paper discusses the question, what is being studied, when the notion of Lehrplan defines the research focus. Against this backdrop the paper askes in a concluding chapter, what can be gained by guiding research by the Anglo-Saxon notion and tradition of curriculum history and if and how comparative research is possible, regarding the tight coupling of language and concepts. 相似文献
15.
Nigel M Healey 《Perspectives: Policy and Practice in Higher Education》2017,21(4):119-128
For many universities around the world, internationalisation means the recruitment of fee-paying international students (so-called export education) for primarily commercial reasons. For UK universities, international (non-European Union) students account for approximately 13% of their annual revenues, making them highly dependent on international student recruitment. This paper discusses the attempt by one UK university to change direction and develop a new approach to internationalisation which puts an international learning experience for all students at the heart of its new strategic plan. It discusses the obstacles to changing direction in this way and shares some of the lessons learned about how to roll out an alternative university-wide internationalisation strategy. 相似文献
16.
This paper discusses the principle and mathematical method to measure the phase fractions of multiphase flows by using a dual-energy
gamma-ray system. The dual-energy gamma-ray device is composed of radioactive isotopes of241
Am and137
Cs with emission energies of 59.5 keV and 662 keV respectively. A rational method to calibrate the absorption coefficient was
introduced in detail. The statistical error has been analyzed on the basis of the accurate absorption coefficient which enables
determination phrase fractions almost independent of the flow regime. Improvement has been achieved on the measurement accuracy
of phase fractions. 相似文献
17.
This paper discusses the political processes involved in an academic program evaluation. Specifically, the paper focuses on how evaluative information is politically linked to programmatic decisions within the context of various organizational and evaluative utilization models. Data gathered from a program evaluation conducted at a small (N=2,500 students), public, liberal arts university in the Southeast are used in examining the explanatory power of the various theories and models.Presented at the 23rd Annual Forum of the Association for Institutional Research, Toronto, May 1983. 相似文献
18.
Lisbeth Grønborg 《International journal of qualitative studies in education》2013,26(5):514-532
This paper discusses how student identities are constituted through social categories and how this affects students’ educational trajectories. Dropout is often described as a sudden event but this paper demonstrates how dropping out is a long-term process involving social interactions between the students. It is based on a field study in which the author was enrolled as a student at the car mechanic program at a vocational education and training school. The various social categories emerge in contrast with each other and have fundamental influences in defining the students’ scope of action. Divisions between the students were based on discourses of ethnicity and seriousness. Four portraits of individual students, each belonging to a different peer group, are presented to describe the individual level of the peer-related dropout processes. The discussion calls for awareness of reproducing effects of taken-for-granted logics and discriminatory practices and for including identity-related perspectives on peer relations, when studying dropout. 相似文献
19.
《Journal of Vocational Education & Training》2012,64(1):127-132
Every country in the world has attempted, one time or another, to improve the fit between education and work. None has really succeeded in doing so. The paper first discusses the theoretical reasons why the matching of education to jobs is a utopia. It then suggests a series of measures that, although will never result to a perfect fit between education and work, they would mitigate what appears to be educated unemployment 相似文献
20.
Willie Henderson 《History of education》2013,42(4):423-437
William Torrey Harris and John Dewey were the two most important philosophers of education in America at the fin de siècle. This paper discusses their rival idealisms through an examination of their philosophical and educational pronouncements. As I will show, both are indebted to, and align themselves with, Hegel. However, each manifests his Hegelian reading in a particular way, leading to very different consequences for education. What these manifestations are, and how two very different understandings can be drawn from a similar source, constitute the matter of the paper. 相似文献