1,721,078 research outputs found
ANDEEP: Antarctic benthic deep-sea biodiversity - colonization history and recent community structure
No full textWe dedicate the present volume to the late Howard Sanders, who passed away after a long illness on 7 February 2001. When as a young scientist at the Woods Hole Oceanographic Institution he, together with his colleague Bob Hessler and his technical assistant George Hampson, collected and analyzed the first “quantitative” samples of deep-sea benthos (today one would call them semi-quantitative), he may not have had any idea how instrumental the resulting time-stability hypothesis would prove to be for at least four decades of biological deep-sea research. The image of the deep-sea floor being a lifeless desert or, at best, a desolate place harboring a depauperate fauna was shattered when investigations along a transect between Bermuda and Gay Head, a cliff on the island of Martha's Vineyard off Massachusetts, revealed that while densities decreased with depth, species richness actually increased. Since then, many more samples have been collected, our knowledge, limited as it may still be, has increased dramatically, and many new theories and hypotheses have been developed. Nevertheless, the work and personality of Howard Sanders are still something one feels obligated to measure up to. With ANDEEP I and II, we may not have entered as much of a terra incognita as Sanders and colleagues did 40 years ago, but our excitement was certainly comparable. We sincerely hope Howard would approve if he could hold this volume in his hands
Introduction to ANDEEP: Antarctic benthic deep-sea biodiversity – colonization history and recent community patterns (ANDEEP III)
No full textAn annotated bibliography of the paleontology of Lesser Antarctica and the Scotia Ridge
No full textThe bibliography lists 166 references on the paleontology of Lesser Antarctica and the Scotia Ridge. It aims to identify all the paleontological discoveries made and to list all the major works on the subject. It is selective to the extent that many review papers are omitted if they add nothing new to previous literature. Conversely, essentially non-paleontological papers are noted if they contain an important item of paleontological data or comment.
It runs from 1833 to 1975 and is presented in two parts: a list of papers in author order with a summary of each and a complete list of the species described, and a systematic index further subdivided by stratigraphical age
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
The crustal blocks of West Antarctica within Gondwana: reconstruction and break-up model
No full textDispelling the Myths Behind First-author Citation Counts
Get PDFWe 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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