1,720,964 research outputs found
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
Die Vegetation des Patscherkofel
No full textDer Arbeitsbereich der vegetationskundlichen Arbeit erstreckt sich von 1500m Seehöhe bis in die Gipfelregion von 2247m des Patscherkofel (Tuxer Alpen). Im Zuge der Geländebegehung wurden nach der Methode von Braun-Blanquet Vegetationsaufnahmen aller wichtigen Vegetationsformen aufgenommen und statistisch (Klassifikation und Ordination) ausgewertet. Auf Basis der numerischen Auswertung wurden die subalpinen und alpinen Vegetationseinheiten pflanzensoziologisch beschrieben
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
Alpine Flüsse mit Ufergehölzen von Myricaria germanica in den Ostalpen
No full textDie Deutsche Tamariske (Myricaria germanica) ist eine Indikatorart naturnaher dynamischer Alluvione von Fließgewässer mit ausgeprägten Sand- und Schotterstrukturen der eurasiatischen Berggebiete. Durch anthropogene Veränderungen der Hydromorphologie von Fließgewässer (flussbauliche Maßnahmen, Hochwasserschutz, Energiegewinnung, Bewässerung, u.a.) sind potentielle Standorte der Art in den Alpen inzwischen selten geworden. Aktuelle Vorkommen der Art in den Ostalpen vermitteln somit auch ein Bild der Naturnähe der Fließgewässer. Die Ökologie und aktuelle Verbreitung der Art in den Ostalpen unter Berücksichtigung der Charakteristika alpiner Fließgewässer wird in Teil 1 abgehandelt. Fließgewässer mit naturnaher Flussmorphologie und -dynamik und ihrer natürlichen Ufervegetation (u.a. Lebensraumtyp 3230 - Alpine Flüsse mit Ufergehölzen von Myricaria germanica) stehen gemäß der Fauna-Flora-Habitatrichtlinie (FFH-RL 92/43/EWG) auf der Liste der Lebensraumtypen von europäischem gemeinschaftlichem Interesse. Die Vollständigkeit des Natura 2000-Netzwerkes hinsichtlich des Lebensraumtyps 3230 steht seit dem Jahr 2001 in naturschutzfachlicher Diskussion. In Teil 2 werden naturschutzfachliche Grundlagen für eine Nachnominierung diskutiert.The German tamarisk (Myricaria germanica) is an indicator species of near-natural dynamic gravelbed rivers in Eurasian mountain regions. Due to human made changes in the hydro-morphology of river potential sites have become very rare in the Eastern Alps. The actual distribution reflects riverine landscape diversity of rivers in the Eastern Alps. The thesis’ first part covers ecology and actual distribution in the Eastern Alps in consideration of the river characteristics. River stretches with high nature value are integrated into the Natura 2000 network (Habitat Directive 92/43/EWG) of protected areas of the habitats and species of community interest (e.g. 3230 Alpine rivers and their ligneous vegetation with Myricaria germanica). The setting up of the European network of protected areas is nearing completion. Nevertheless, some additional site nominations are still missing, such as additional protected areas for habitat 3230 3230, especially in Austria. In the second part of the thesis expertise for additional protected site nominations is compiled
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
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
- …
