1,721,131 research outputs found
Soil fungal community composition does not alter along a latitudinal gradient through the maritime and sub-Antarctic
No full textWe investigated the relationships between fungal community composition, latitude and
a range of physicochemical parameters in 58 soils sampled from a 2370 km latitudinal
gradient between South Georgia (54 S, 38 W) in the sub-Antarctic and Mars Oasis (72 S,
68 W) on Alexander Island in the southern maritime Antarctic. Our study, which is based
on approximately ten times the number of samples used in previous similar studies,
indicates that latitude and its associated environmental parameters are not related to
fungal community composition. Significant changes in the composition of soil fungal
communities were observed in relation to gradients of the ratio of total organic carbon to nitrogen, and, to a lesser extent, soil pH
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 poetry and science of Humphry Davy
Get PDFDrawing on the wealth of manuscript material in his personal notebooks, my thesis presents Humphry Davy through the lens of his published and manuscript poetry. Having transcribed and examined Davy’s poems in groups and from a literary critical and historical perspective, I argue that his poems are historically contingent on the mutability of his career, and in them, Davy adopts and redeploys literary, scientific and medical ideas to confirm his imaginative and controlled emotional connection with nature. Chapter One traces the way in which Davy expresses his youthful ambitions in his published poetry through a nexus of literary and medical ideas. Chapter Two compares Davy’s manuscript poetry with his physiological work at Bristol to reveal that he explores the different ways in which the sublime can be both transcendent and physiological. Chapter Three examines Davy’s use of rhetoric in his lectures on chemistry and the lyric in his poems on Anna, wife of Thomas Beddoes. Chapter Four contrasts Davy’s poetry written during his first and second trips on the Continent. The natural landscapes, which in 1813 are imbued with Davy’s confident perspective as a natural philosopher who can find the harmonies in nature, later become a means for reassurance on the workings of the mind and body. Chapter Five examines a notebook used from 1827 as Davy’s final act to gather some of his poems into a group. In many of his new and hesitant poems, Davy considers the possibility of immortality and conveys his Platonist beliefs. By reading Davy’s poetry as a product of the literary and scientific culture of the Romantic period, my thesis aims to broaden awareness of Davy’s knowledge of complex ideas in literature, science and medicine, and the common cultural stimuli of literary and scientific figures in the late eighteenth and early nineteenth century
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
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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