1,747,838 research outputs found

    Oral history interview with Paul Satoh, 2015 August 23

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    Born in Osaka, Japan, in 1936, Paul Satoh spent a happy childhood as the only child of a chemist and a homemaker. Satoh's extended family included an uncle who had studied at the University of California, Los Angeles, and his wife, a US-born Nikkei from Hawaii who occasionally had received a "care pack from the United States" that she shared with the Satohs. Although the couple was not affected by the bomb as they were in Tokyo, one of Satoh's other aunts who was in Hiroshima died of radiation sickness. Satoh himself, too, was in Hiroshima as his family's house in Osaka was burned in an air raid early in 1945. Living in his relative's house in Koi, which was about six kilometer from the hypocenter, Satoh remembers hearing a "real big sound" at the moment of the explosion. His family decided to take refuge in his grandmother's house in the countryside, and as they walked through Hiroshima, they witnessed people dying on the street from severe burns and injuries. Many years later, his mother died of leukemia, while Satoh himself suffered from thyroid cancer. Immediately after the war, though, Satoh recalled only silence around the bomb, even as many of his classmates passed away because of the delayed radiation effect. He came to the United States in 1960 to study chemistry at Wayne State University in Detroit, Michigan. He married a Polish American woman who was his classmate, and experienced racial discrimination in the era when interracial marriages were still illegal in many US states. Satoh also found that his brother-in-law had worked as a maintenance crew for Enola Gay, the airplane that dropped the bomb on Hiroshima. Satoh worked as a chemist in the for-profit sector, and he occasionally lectured at colleges on applied chemistry. Although he was not part of any U.S. survivors' groups, he was interested in issues of nuclear weaponry and bomb victims. He has assisted research for a book written by his acquaintance about U.S. prisoners of war who died of the bomb in Hiroshima in 1945

    Accumulation of stress in constrained assemblies: novel Satoh test configuration

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    A common test used to study the response of a transforming material to external constraint is due to Satoh and involves the cooling of a rigidly constrained tensile specimen while monitoring the stress that accumulates. Such tests are currently common in the invention of welding alloys which on phase transformation lead to a reduction in residual stresses in the final assembly. The test suffers from the fact that the whole of the tensile specimen is not maintained at a uniform temperature, making it difficult to interpret the data. To eliminate this problem, the authors report here a novel Satoh test in which the material investigated is a part of a composite sample. It is demonstrated that this helps avoid some of the complications of the conventional tests and gives results which are consistent with independent tests

    Finding secure curves with the Satoh-FGH algorithm and an early-abort strategy

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    Abstract. The use of elliptic curves in cryptography relies on the ability to count the number of points on a given curve. Before 1999, the SEA algorithm was the only efficient method known for random curves. Then Satoh proposed a new algorithm based on the canonical p-adic lift of the curve for p ≥ 5. In an earlier paper, the authors extended Satoh’s method to the case of characteristics two and three. This paper presents an implementation of the Satoh-FGH algorithm and its application to the problem of finding curves suitable for cryptography. By combining Satoh-FGH and an early-abort strategy based on SEA, we are able to find secure random curves in characteristic two in much less time than previously reported. In particular we can generate curves widely considered to be as secure as RSA-1024 in less than one minute each on a fast workstation.

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

    Variations on the Author

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    “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

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis

    [old/mistake] Data used in the GRL paper titled "Climatology of Tropical Cyclone Seed Frequency and Survival Rate in Tropical Cyclones"

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    Data used in the GRL paper titled "Climatology of Tropical Cyclone Seed Frequency and Survival Rate in Tropical Cyclones" by Ikehata and Satoh Please download and decompress the zip file. We describe details of this dataset in "readme.txt"

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods

    Author Index

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