1,721,551 research outputs found
Entrevista al profesor D. Michael Walker. - Interview with Professor D. Michael Walker.
No full textEntrevistar a un investigador de la talla de D. Michael Walker supone hablar de un investigador reconocido a nivel nacional e internacional, uno de los mayores expertos en evolución humana de nuestros días. Nació en Colchester (Inglaterra) en 1941 y tiene doble nacionalidad: británica y australiana. Actualmente es profesor emérito de la Universidad de Murcia en el Departamento de Zoología y Antropología Física de la Facultad de Biología. Pero su currículum no acaba aquí, Michael realizó tres carreras, Fisiología Animal, Medicina, y Arqueología Prehistórica, en la Universidad de Oxford. Es Doctor por esta universidad, gracias a su tesis leída sobre Paleoantropología y Prehistoria de las cuencas de los ríos Segura y Vinalopó. Nuestro entrevistado, también fue elegido Académico (Fellow –F.S.A.-) en 1988 de la Society of Antiquaries of Londono SAL. Fundada en 1707, la SAL es la equivalente británica de la española Real Academia de la Historia. Es Fellow también del Real Instituto Antropológico de la Gran Bretaña (Royal Anthropological Institute of Great Britain) y socio emérito de la Asociación Americana de Antropólogos Físicos (American Association of Physical Anthropologists)
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
General Equilibrium Effects of Cash Transfers: Experimental Evidence from Kenya
No full textThis page presents materials related to the paper "General Equilibrium Effects of Cash Transfers: Experimental Evidence from Kenya", by Dennis Egger, Johannes Haushofer, Edward Miguel, Paul NIehaus, and Michael Walker
General Equilibrium Effects of Cash Transfers: Experimental Evidence from Kenya
No full textThis page presents materials related to the paper "General Equilibrium Effects of Cash Transfers: Experimental Evidence from Kenya", by Dennis Egger, Johannes Haushofer, Edward Miguel, Paul NIehaus, and Michael Walker
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
TRANSCRIPTOME VARIATION IN BREAST CANCER
No full textSuccessful cancer treatment is based on our understanding of a number of biological considerations such as its mechanisms for survival, evasion of tumor suppressor programs, and proliferation. Unfortunately, cancer evolution is often chaotic and a single tumor may exhibit many different methods for achieving its goals, such as direct mutation of tumor suppressor genes, over-expression of genes which target tumor suppressors, or both. With that in mind, it is crucial for clinicians and researchers to be able to distinguish the properties of each tumor and identify similarities between them, so that broad-impact treatments can be ii devised. Recently, a number of advances have been made which allow researchers to gather more detailed information in a high-throughput manner on the behavior of individual tumors. Where once only gross gene expression information could be gleaned using a microarray chip, now sequencing technology enables us to understand what individual isoforms of genes are being expressed, and in what abundance. Sequencing technology advances have als
Dispelling 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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