1,721,055 research outputs found
Richard Thomas Lowe: un ilustrador botánico desconocido
Full text linkLa ilustración es indudablemente parte de la historia botánica. A comienzos del siglo xix,
cuando el latín botánico posibilitó descripciones más exactas, la necesidad de ilustraciones
científicas decreció. Por otra parte, el desarrollo de las técnicas de impresión permitió la
producción de revistas botánicas ilustradas periódicas a costes accesibles. Por ello, las láminas
de plantas nunca han dejado de ser parte de la botánica a todos los niveles. Richard
Thomas Lowe (1802-1874) estudió la flora de Madeira desde 1826, cuando visitó la isla por
primera vez, hasta su muerte. Es bien conocido por haber sido el autor de la primera flora
comprehensiva de Madeira, pero su labor como ilustrador botánico es poco conocida. En
este trabajo analizamos la producción gráfica de su primer trabajo importante, publicado
en 1831, junto con documentos escritos que juntos permiten conocer la extraordinaria labor
del reverendo Lowe como botánico en Madeira, incluyendo su relevante actividad como
ilustrador. Creemos que el análisis conjunto de sus ilustraciones y de su correspondencia
muestra que fue el propio Lowe realizó los dibujos que dieron lugar a las láminas de Goodyera
macrophylla de este trabajo, que hasta ahora se consideraban de autor desconocido.Illustration is undoubtedly part of botanical history. In the early 19th century, as botanical
Latin yielded more accurate descriptions, the need for illustration in scientific publications
decreased. Nevertheless, advances in printing processes boosted the production of illustrated
botanical periodicals at accessible costs. Therefore, coloured depictions of plants
never ceased to be part of botany at all levels. Richard Thomas Lowe (1802-1874) studied
the flora of Madeira from 1826, when he first visited the island, to his death. He is well
known as the author of Madeira’s first comprehensive Flora, but his work as a botanical
illustrator is poorly known. We analysed the graphic production related to his first major
paper, published in 1831, along with written documents, which, altogether, support a more
complete understanding of Rev. Lowe’s botanical work in Madeira and his relevant activity
as an illustrator. We believe that joint analysis of illustrations and correspondence show that
Lowe himself made the drawings after which the plate of the orchid Goodyera macrophylla
in this paper was prepared, whose authorship was, up to now, unknown
Richard Thomas Lowe, an unknown botanical illustrator
Full text linkIllustration is undoubtedly part of Botany history. In the early 19th century, as botanical Latin became more accurate in yielding accurate descriptions, the need for illustration in scientific publications decreased. On the other hand, advances in printing processes boosted the production of illustrated botanical periodicals at accessible costs. Coloured depictions of plants were thence part of botany at all levels.
Richard Thomas Lowe (1802-1874) studied the flora of Madeira from 1826, when he first visited the island, to his death. He is well known as the author of Madeira’s first comprehensive Flora, but his work as a botanical illustrator is poorly known.
We analysed the graphic production related to his first major paper, published in 1831, along with written documents which, altogether, support a more complete understanding of Rev. Lowe’s botanical work in Madeira. We believe that joint analysis of these and of Lowe’s correspondence show that Lowe himself may have made the one illustration in this paper whose authorship is unknown.La ilustración es indudablemente parte de la historia botánica. A comienzos del siglo xix, cuando el latín botánico posibilitó descripciones más exactas, la necesidad de ilustraciones científicas decreció. Por otra parte, el desarrollo de las técnicas de impresión permitió la producción de revistas botánicas ilustradas periódicas a costes accesibles. Por ello, las láminas de plantas nunca han dejado de ser parte de la botánica a todos los niveles. Richard Thomas Lowe (1802-1874) estudió la flora de Madeira desde 1826, cuando visitó la isla por primera vez, hasta su muerte. Es bien conocido por haber sido el autor de la primera flora comprehensiva de Madeira, pero su labor como ilustrador botánico es poco conocida. En este trabajo analizamos la producción gráfica de su primer trabajo importante, publicado en 1831, junto con documentos escritos que juntos permiten conocer la extraordinaria labor del reverendo Lowe como botánico en Madeira, incluyendo su relevante actividad como ilustrador. Creemos que el análisis conjunto de sus ilustraciones y de su correspondencia muestra que fue el propio Lowe realizó los dibujos que dieron lugar a las láminas de Goodyera macrophylla de este trabajo, que hasta ahora se consideraban de autor desconocido
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
Richard Thomas Lowe (1802–1874) and his correspondence networks: botanical exchanges from Madeira
No full textThe growth of scientific knowledge in the natural sciences in the nineteenth century to a large
extent depended on networking and communication between naturalists. Our case-study illustrates such
forms of scientific communication using a social network analysis (SNA) approach for studying the
relationships of the Reverend Richard Thomas Lowe, an English naturalist who lived in Madeira from 1826
to 1852, and continued to visit until his death in a shipwreck in 1874. During his lifetime, he established a
network of contacts mainly in the United Kingdom and in Madeira, which enabled him to develop and
publish his pioneering work on the local flora, including A manual flora of Madeira and the adjacent islands
of Porto Santo and the Desertas.info:eu-repo/semantics/publishedVersio
Richard Thomas Lowe (1802–1874) and his correspondence networks: botanical exchanges from Madeira
No full textThe growth of scientific knowledge in the natural sciences in the nineteenth century to a large
extent depended on networking and communication between naturalists. Our case-study illustrates such
forms of scientific communication using a social network analysis (SNA) approach for studying the
relationships of the Reverend Richard Thomas Lowe, an English naturalist who lived in Madeira from 1826
to 1852, and continued to visit until his death in a shipwreck in 1874. During his lifetime, he established a
network of contacts mainly in the United Kingdom and in Madeira, which enabled him to develop and
publish his pioneering work on the local flora, including A manual flora of Madeira and the adjacent islands
of Porto Santo and the Desertas.info:eu-repo/semantics/publishedVersio
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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