1,720,971 research outputs found
Megabenthic ecology of the Angolan continental slope
No full textThe structure of deep-water benthic systems off Angola is poorly known. This thesis presents new information on the present-day spatial structure of epifaunal megabenthic communities from the Angolan continental slope using seabed imagery and environmental data obtained across a range of depths extending from 300 to 2500 m. At broader spatial scale, communities associated with soft sedimentary habitats on the upper to lower slope showed strong depth-related structuring. Evolutionary influences and ecological controls, such as food availability, hydrodynamic conditions, and dissolved oxygen concentrations were proposed to influence these patterns at different spatial and temporal extents. The study of the ecological and morphological characteristics of cold-water coral mounds along the upper continental slope highlighted the importance of habitat-forming scleractinian species in providing habitat heterogeneity and increasing regional diversity. The preliminary analysis of acoustic and photographic data collected on the lower slope revealed a variety of geomorphological and geochemical features on a wide range of scales that increased habitat heterogeneity. The regional-scale review of Angolan deep-water systems showed major gaps in our understanding of Angolan deep-water ecology. The data presented in this study contribute to filling some of those gaps, while simultaneously providing quantitative data for environmental managers and conservationists
Extended Practice — Dealing with challenging research situations
No full textIn this Exploration you engage with challenging research situations and how to incorporate them fruitfully in your ethnography and analysis. You will be given space to attend to potential irritations, reluctances or fears when encountering people, opinions or ways of life that you might not (necessarily) like, or might even detest. You will be guided through a number of questions that relate to difficult research situations. We will ask you to relate to your bodily and affective responses to particular challenging persons or events in difficult research situations. Finally, we will focus on how these situations can be fruitfully engaged with during the writing process as a part of the data analysis
Dark Ethnography? Encountering the ‘Uncomfortable’ Other in Anthropological Research: Introduction to this Special Section
No full textOur aim with this issue is to provide a starting point for an intensive conversation about the
flexibility and systematization of the methodology of research and its specific challenges in highly contested fields like far-right and militant Islamist movements. The contributions to this special section
discuss issues related to the moral, emotional and ethical challenges, that anthropologists have faced
in conducting research in such highly contested fields. They offer more textured views of dilemmas
and challenges in highly contested fields through careful reflection on their ethnographic encounters.
They all deem it necessary to position their work within recent debates, in webs of the production of
knowledge, embedded in the power relations and complexities in their respective fields and within the
discipline, albeit in very different ways
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
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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