Research universities for national rejuvenation and global influence: China’s search for a balanced model     

Gerard A. Postiglione 《Higher Education》2015,70(2):235-250

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Editor’s Page: Trigger Warnings     

Libby?V.?MorrisEmail author 《Innovative Higher Education》2015,40(5):373-374

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Dielectrophoretic manipulation of ribosomal RNA     

Giraud G  Pethig R  Schulze H  Henihan G  Terry JG  Menachery A  Ciani I  Corrigan D  Campbell CJ  Mount AR  Ghazal P  Walton AJ  Crain J  Bachmann TT 《Biomicrofluidics》2011,5(2):24116

The manipulation of ribosomal RNA (rRNA) extracted from E. coli cells by dielectrophoresis (DEP) has been demonstrated over the range of 3 kHz-50 MHz using interdigitated microelectrodes. Quantitative measurement using total internal reflection fluorescence microscopy of the time dependent collection indicated a positive DEP response characterized by a plateau between 3 kHz and 1 MHz followed by a decrease in response at higher frequencies. Negative DEP was observed above 9 MHz. The positive DEP response below 1 MHz is described by the Clausius-Mossotti model and corresponds to an induced dipole moment of 3300 D with a polarizability of 7.8×10(-32) F m(2). The negative DEP response above 9 MHz indicates that the rRNA molecules exhibit a net moment of -250 D, to give an effective permittivity value of 78.5 ε(0), close to that of the aqueous suspending medium, and a relatively small surface conductance value of ～0.1 nS. This suggests that our rRNA samples have a fairly open structure accessible to the surrounding water molecules, with counterions strongly bound to the charged phosphate groups in the rRNA backbone. These results are the first demonstration of DEP for fast capture and release of rRNA units, opening new opportunities for rRNA-based biosensing devices.  相似文献   

On-line information systems—Use and operating characteristics,limitations and design alternatives: B. Gerrie. Information Resources Press,Arlington, Virginia (1983). xii + 189 pp., $24.50 plus $2.10 handling,ISBN 0-87815-047-1.     

Gerard Salton 《Information processing & management》1985,21(3):260-261

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Response from Gerard Guthrie     

Gerard Guthrie 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1980,26(4):445-449

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On the Non-discursive Nature of Competence     

Gerard  Lum 《Educational Philosophy and Theory》2004,36(5):485-496

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Transcultural Communicative Competence and the Growth of European Citizenship     

Gerard M. Willems 《欧洲师范教育杂志》1991,14(3):189-212

Les discussions concernant l'introduction de la dimension européenne dans l'éducation se concentrent trop souvent uniquement sur le role joué par les sciences sociales. Le role de l'enseignement des langues étrangères est peu reconnue et si elles sont mentionées dans ce contexte c'est souvent en dernier lieu. Ceci peut être causé par le contenu utilisé et la méthodologie appliquée dans la classe, mais cette négligeance n'est certainement pas justifiée. Cet article traite du rôle que joue l'enseignement des langues étrangères dans la formation des jeunes comme citoyens européens. Evidemment l'article contient des suggestions à la fois pour des changements dans le contenu et la méthodologie de l'enseignement des langues étrangères. L'article établit un lien entre la langue et la culture dans laquelle elle fonctionne et il suggère comme éléments centraux dans l'enseignement des langues la prise de conscience de l'alterité et les aptitudes linguistiques, pragmatiques et stratégiques qui sont nécessaires pour jeter un pont entre les écarts culturels qui séparent les peuples européens.

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Editor's Page: Research Agenda for Higher Education     

Libby V. Morris 《Innovative Higher Education》2003,28(2):87-90

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Postdoctoral Teaching Fellowships: A Home in Academe?     

Libby V. Morris 《Innovative Higher Education》2005,30(4):229-231

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Item Clusters and Computerized Adaptive Testing: A Case for Testlets     

Howard Wainer  Gerard L. Kiely 《Journal of Educational Measurement》1987,24(3):185-201

It is observed that many sorts of difficulties may preclude the uneventful construction of tests by a computerized algorithm, such as those currently in favor in Computerized Adaptive Testing (CAT). In this essay we discuss a number of these problems, as well as some possible avenues of solution. We conclude with the development of the "testlet," a bundle of items that can be arranged either hierarchically or linearly, thus maintaining the efficiency of an adaptive test while keeping the quality control of test construction that is possible currently only with careful expert scrutiny. Performance on the separate testlets is aggregated to yield ability estimates.  相似文献