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1.
卤素动力学光度法研究:利用抑制效应测定痕量溴离子   总被引:2,自引:0,他引:2  
基于稀硫酸介质,痕量溴对溴酸钾氧化孔雀绿反应的强抑制作用,建立了动力学光度法测定痕量溴离子的新方法。方法的表观摩尔吸光系数为4.0×105L·mol-1·cm-1,灵敏度为1.98×10-10g/ml,用于玻璃、镁条和硫酸铵中溴的测定,结果满意  相似文献   
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This article compares the organization and practice of primary English language teaching in Norway and The Netherlands, considering the strengths and weaknesses of the respective systems. It is based on surveys carried out in each country. Several issues considered essential to the success of a primary EFL program are addressed, such as starting age, contact hours, teacher competence, teaching priorities, classroom practice, the use of the target language as the language of instruction, and materials used. Special attention is given to the transition from the primary to secondary level. Although both countries share common challenges and problems, these appear to be far greater in the Netherlands than in Norway, especially with regard to continuity from primary to secondary.

Cet article compare l'organisation et la pratique de l'enseignement de l'anglais à l'école primaire en Norvège et aux Pays‐Bas, en considérant les forces et les faiblesses des systèmes respectifs. L'article se base sur des enquêtes réalisées dans chaque pays. Plusieurs éléments essentiels ont été pris en compte pour le succès du programme de EFL (anglais langue étrangère) à l'école primaire, comme l'âge des élèves, le nombre d'heures d'enseignement, la compétence du professeur, les priorités de l'enseignement, les pratiques de classe, l'utilisation de la langue cible pendant l'enseignement et le matériel utilisé. Une attention toute particulière a été accordée à la transition du niveau primaire au niveau secondaire. Bien que les deux pays partagent les mêmes ambitions et les mêmes problèmes, il semble qu'ils soient mieux abordés aux Pays‐Bas qu'en Norvège, particulièrement si l'on considère la continuité entre le niveau primaire et le niveau secondaire.

Este artículo compara la organización y la práctica de la enseñanza del idioma inglés en la escuela primaria en Noruega y en los Países Bajos, considerando lo positivo y lo negativo de los sistemas respectivos. Se basa en investigaciones realizadas en cada país. Se toman en cuenta varios elementos esenciales para el éxito del programa de EFL (enseñanza del inglés para extranjeros) en la escuela primaria, como la edad de los alumnos, las horas de enseñanza, la competencia del profesor, las prácticas de clase, el uso del idioma enseñado en la situación de enseñanza y el material utilizado. Una atención particular está otorgada a la transición de la escuela primaria a la segundaria. Aunque los dos países compartan los mismos desafíos y problemas, aparece que son tratados mejor en los Países Bajos que en Noruega, especialmente si se considera la continuidad entre el nivel primario y el segundario.

Im Mittelpunkt des Beitrags steht ein Vergleich der Organisation und Praxis des Grundschul‐Englischunterrichts in den Niederlanden und in Norwegen, wobei Stärken und Schwächen der jeweiligen Systeme aufgezeigt werden. Die Untersuchung beruht auf Umfragen, die unter Lehrkräften in den beiden Ländern durchgeführt wurden. Eine Reihe wichtiger Aspekte, die für den Erfolg von Englischprogrammen im Grundschulbereich verantwortlich sind, wie Eingangsalter der Schüler, Stundendeputat, Kompetenz der Lehrkraft, Unterrichtsziele, Unterrichtspraxis, Unterrichtsprache und Lehrmittel, werden angesprochen. Besondere Aufmerksamkeit wird dem Übergang vom Grundschul‐ zum Sekundarbereich gewidmet. Obwohl beide Länder vor ähnlichen Problemen und Herausforderungen stehen, scheinen diese in den Niederlanden sehr viel schwerwiegender als in Norwegen zu sein, ganz besonders in Bezug auf die Frage der Kontinuität beim Wechsel von der Grundschule zur Sekundarstufe.  相似文献   

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December 1989 meant for the Romanian academie world the break off with the communist dogmaticism and the politics of indoctrination and also the possibility of installing a critical analysis and the continuity of the true values of Romanian universities. Two inquiries conducted in 1990 and 1991 among students and Professors revealed a strong contesting pathos (persons, teaching contents and methods. The entire educational System were contested) and also a true desire to find out the critical aspects which enhances a new ideology in the higher education System. Students and a part of the faculty have discovered expressions like “academic freedom” and “academie autonomy”. They started to use concepts like “change”, “academic democracy”, “social responsibility”. New expectations concerning the behavioural offer of Professors occurred. When defining the direction of this change, authors chose the expression “toward normality”. Indices of normality could be the assumption by the university of new functions and value orientations previously forgotten and abandoned, under the dictatorial system such as creation and diffusion of values, introduction of criteria of competence and morality in evaluating both academic status and behaviour of Professors.  相似文献   
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Assessment is a key component of the education process and strategies involving peer-feedback are considered beneficial to student learning. This study aims to analyse the benefits giving and receiving feedback have for students’ development of cognitive and metacognitive, affective and professional competences. One-hundred and eighty-eight students enrolled in teacher education answered a survey. Results indicate that, after providing feedback, the students perceived a better learning experience and an increased sense of commitment to their own learning and their colleagues’ progress. A key finding from this study was the role of students in their own learning. As most participants recognised, providing feedback helped them improve their learning, which is a clear indicator that students want to adopt an active role in their own learning and consider their involvement critical in the design of teaching and learning experiences. To achieve the greatest advantages, feedback must be accompanied by tutoring and mentoring to ensure positive connections with the task, address doubts and clarify the comments received.  相似文献   
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Some of the main concerns in international higher education are the feeling of isolation among international students and their inability to adapt to the host environment, which may result in sub-optimal academic performance. Theoretically, peer learning can be an effective method to reduce these problems since it has the capacity to address isolation and adaptability issues among international students in a way that improves their learning experience and outcomes. Given the above, our study was designed to investigate this topic, focusing on the experience of international students. In this exploratory case study of a leading Irish university, we adopted a survey method via questionnaire to quantify and compare the experiences of a sample of international students at the said university. Five aspects of peer learning were explored, namely usage rate, current practices, outcomes, challenges, and coping strategies. We also included an open-ended section in the survey instrument for respondents to offer qualitative suggestions to the host institution. Through methodological triangulation of the quantitative and qualitative data, we discovered diverse practices, challenges, and outcomes of peer learning across different groups of international students in this university. The paper concludes with a discussion of research implications and suggestions for future studies.  相似文献   
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This article examines the factors which contribute to the success of female academics engaging in research in social sciences. The data were obtained through a series of interviews carried out at public universities in Catalonia with women, all of whom were the heads of research groups recognized by the Generalitat de Catalunya (Catalan Government). These results reveal several aspects relevant for women academics, at both the individual and institutional levels, in terms of employment opportunities, management of research programmes, development of teaching strategies and individual time management. This should assist the development of institutional policies and practices within higher education to help women build successful research careers.  相似文献   
9.
Ion Trewin's The Professions: Journalism (North Pomfret, Vt.: David & Charles, 1976—$9.95)

Charles Husband (ed.) White Media and Black Britain: A Critical Look at the Role of the Media in Race Relations Today (London: Arrow Books, Ltd., 1975—about $3.50, paper)

Peter Douglas' Television Today (London: Osprey Publishing, 1975—about $9.00)

Louis L. Snyder's Encyclopedia of the Third Reich (New York: McGraw-Hill, 1976—$24.95)

Leo Bogart's Premises for Propaganda: The United States Information Agency's Operating Assumptions in the ColdWar (New York: Free Press, 1976—$12.95)

Marcellus S. Snow's International Commercial Satellite Communications: Economic and Political Issues of the First Decade of Intelsat (New York: Praeger Special Studies, 1976—$16.50)

Charles Sherman and Donald Browne (eds) Broadcast Monographs No. 2: Issues in International Broadcasting (BEA, 1771 N. St. NW, Washington D.C. 20036—$5.00, with a $4.00 price to BEA members, paper)

Access: Technology and Access to Communications Media by B.R. Webster (54 pp., $2.65, paper)

Towards Realistic Communication Policies: Recent Trends and Ideas Compiled and Analysed by John A.R. Lee (59 pp., $2.65, paper)

Mehra Masani, Broadcasting and the People (179 pp., Rs 10.25, paper)

Narayana Menon, The Communications Revolution (89 pp., Rs 5.75, paper)  相似文献   
10.
Charles Roetter, The Art of Psychological Warfare:1914-1945 (New York: Stein and Day, 1974–$8.95).

Benjamin Draper (ed.) Pacific Nations Broadcasting III and Bibliography (Broadcast Inudstry Conference, San Francisco State University, 1600 Holloway Ave., San Francisco, Cal. 94132—$10.00, paper)

Structures of Television by Nicholas Garnham (48 pp.)

Light Entertainment by Richard Dyer (43 pp.):

The Cultural Policy of the United Republic of Tanzania by L.A. Mbughuni (72 pp., paper, $3.30):

Cultural Policy in Hungary (79 pp., paper, $3.30):

Culturalyolicy in Liberia by Kenneth Y. Best (59 pp., paper, $2.65):

Cultural Policy in Romania by Ion Dodu Balan (70 pp., paper, $3.30):

Unesco in Perspective by Rene Maheu (129 pp., paper, $3.30):

For Books: Unesco and its Programme by Emile Delavenay (74 pp., paper, $1.00):  相似文献   
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