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Ahmed H. Zewail (1946-2016)
No full text[Introduction] Ahmed H. Zewail, an Egyptian-American scientist who won the 1999 Nobel Prize in Chemistry for pioneering investigations of fundamental chemical reactions on the femtosecond time scale, died on 2 August 2016. He was 70 years old. Zewail was an academic star at the California Institute of Technology (Caltech) and spent his final years advocating for investment in science education and research in Egypt
Reconstruction and environment : Palestinian perspectives on the reconstruction of Gaza
No full textAhmed H. Hilles ; issuing department: Friedrich-Ebert-Stiftung | Department for Middle East and North Afric
An eigenstructure approach for the retrieval of cylindrical harmonics from 2-D isotropic covariance data
No full textTitle from cover.Bibliography: p. 24-25.Supported in part by the National Science Foundation under Grant ECS-8312921 and in part by the Army Research Office under Grant DAAG-29-84-K-0005.Ahmed H. Tewfik, Bernard C. Levy, Alan S. Willsky
An efficient maximum entropy technique for 2-D isotropic random fields
Full text linkTitle from cover.Bibliography: p. 24-25.Supported in part by the National Science Foundation under Grant ECS-83-12921 and in part by the Army Research Office under Grant DAAG-29-84-K-0005.Ahmed H. Tewfik, Bernard C. Levy and Alan S. Willsky
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Silicon stacked tunnel transistor for high-speed and high-density random access memory gain cell
No full textVariations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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