1,721,598 research outputs found
George W. Hopkins
No full textBlack and white, formal portrait of George W. Hopkins. Hopkins wears a dark suit, white shirt with a tab collar, and a dark bow tie. His dark hair is parted slightly off center and his mustache is neatly trimmed. He has strikingly large, light-colored eyes. undated, Late 19th-Early 20th Century. See NAFOH 2462.https://digitalcommons.library.umaine.edu/nafoh_gallery/1592/thumbnail.jp
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
Calvary Baptist Church committee for Curtis W. Hopkins
No full textA black and white photograph of the men and women of the Committee for Curtis W. Hopkins at the Calvary (Missionary) Baptist Church as they pose in dresses and suits at the church around 1960. Curtis Hopkins, an African American man, was being held in the Lucas County , Ohio jail awaiting extradition to Mississippi for a rape charge. Many felt that Hopkins would not get a fair trial in 1960-era Mississippi and were fighting his extradition
Defining soil quality
No full textThis book provides a selection of microbiological methods that are already applied in regional or national soil quality monitoring programmes. It is presented in two parts: (1) gives an overview of approaches to monitoring, evaluating and managing soil quality; and (2) provides the detailed methods to use this book as a practical handbook in the laboratory. The methods are described in chapters on soil microbial biomass and numbers, soil microbial activity, soil microbial diversity and community composition, plant-microbe interactions and soil quality. Finally, a census is given of the main methods used in over 30 European laboratories. This book will be of significant use to postgraduate students and researchers in soil science and microbiology, and to policy makers and land managers. [Book Synopsis
Aspects physico-chimiques de l'élaboration des métaux, par D. W. Hopkins, traduit par C. Cousin, 1958
No full textLacombe Paul Gilbert Jean Ghislain. Aspects physico-chimiques de l'élaboration des métaux, par D. W. Hopkins, traduit par C. Cousin, 1958. In: Bulletin de la Société française de Minéralogie et de Cristallographie, volume 81, 4-6, 1958. pp. 163-164
Aspects physico-chimiques de l'élaboration des métaux, par D. W. Hopkins, traduit par C. Cousin, 1958
No full textLacombe Paul Gilbert Jean Ghislain. Aspects physico-chimiques de l'élaboration des métaux, par D. W. Hopkins, traduit par C. Cousin, 1958. In: Bulletin de la Société française de Minéralogie et de Cristallographie, volume 81, 4-6, 1958. pp. 163-164
Variations 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
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe 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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
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