1,720,961 research outputs found
Genetic factors and systemic sclerosis
No full textSystemic sclerosis (SSc) is a rare connective tissue disease of unknown etiology characterized by chronic inflammation and fibrosis of the skin, vascular abnormalities, and variable involvement of organs including kidneys, gastrointestinal tract, heart, and lungs. SSc shows a complex etiology in which both environmental and genetic factors seem to influence the onset and outcome of the disease. We provide an extensive overview of the genetic factors and epigenetic modifications and what their knowledge has revealed in terms of etiopathogenesis of SSc
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
Descolonizando el Gadir fenicio: Convivencia y multiculturalidad en la Bahía de Cádiz (siglos IX-VI a.n.e.)
Full text linkColonia, colonialismo o colonización son términos y conceptos muy recurrentes en las reconstrucciones históricoarqueológicas
del pasado. Los movimientos migratorios que se desarrollaron en el Mediterráneo y Atlántico durante el I
milenio a.n.e., han sido generalmente considerados en términos coloniales. Los contactos entre grupos autóctonos y
foráneos han sido entendidos a través de categorías fijas y duales colonizador/colonizado, civilizado/subdesarrollado
étnicamente separadas y destinada a no encontrarse. Sin embargo, en los últimos años diferentes perspectivas teóricas
han puesto el énfasis en los grupos silenciados, ofreciendo nuevos puntos de vista para el estudio de las migraciones en
el Mediterráneo Antiguo. Según estas visiones, los/as arqueólogos/as no solo han reflexionado muy poco en torno a la
intensidad de los lazos que unen la visión de los primeros contactos en el Mediterráneo con el colonialismo perpetrado
por Europa en época moderna y contemporánea, sino que al revés, los han implícitamente apoyado y difundido. La
influencia del colonialismo europeo (con sus categorías binarias, sus visiones racistas y patriarcales y su “misión
civilizadora” de la humanidad no occidental) en las reconstrucciones histórico-arqueológicas del Mediterráneo Antiguo
representa una problemática que, en mi opinión, es prioritario abordar. La critica a los “discursos coloniales” presentes
en las reconstrucciones histórico-arqueológicas de la antigüedad, es una realidad y una tarea pendiente de nuestra
disciplina.
A través de este estudio intentaré aplicar los principio poscoloniales a las evidencias materiales procedentes de la Bahía
de Cádiz atribuidas a los siglos IX y VI a.n.e., momentos en los que en este territorio empiezan y se desarrollan los
contactos, con la intención de ofrecer una mirada diferente a la lectura de estos materiales y para analizar las evidencias
arqueológicas bajo postulados teórico-metodológicos distintos de los habituales.Colony, colonialism or colonisation are very recurrent terms and concepts in historical-archaeological reconstructions of
the past. The migratory movements that developed in the Mediterranean and Atlantic during the 1st millennium BC
have generally been considered in colonial terms. Contacts between autochthonous and alien groups have been
understood through fixed, dual categories of coloniser/colonised, civilised/underdeveloped, ethnically separated and
destined not to meet. In recent years, however, different theoretical perspectives have placed the emphasis on silenced
groups, offering new insights into the study of migrations in the Ancient Mediterranean. According to these views,
archaeologists have not only given little thought to the intensity of the links between the vision of early Mediterranean
contact and the colonialism perpetrated by Europe in modern and contemporary times, but have implicitly supported
and disseminated them. The influence of European colonialism (with its binary categories, its racist and patriarchal
views and its 'civilising mission' of non-Western humanity) on historical-archaeological reconstructions of the Ancient
Mediterranean represents a problem that, in my opinion, needs to be addressed as a matter of priority. The critique of
the "colonial discourses" present in historical-archaeological reconstructions of antiquity is a reality and a pending task
for our discipline.
In this study I will try to apply post-colonial principles to the material evidence from the Bay of Cadiz attributed to the
9th and 6th centuries B.C.E., when contacts began and developed in this territory, with the intention of offering a
different approach to the reading of these materials and to analyse the archaeological evidence under theoreticalmethodological
postulates different from the usual ones.Programa de doctorat en Històri
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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