1,720,956 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
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
Preparation and properties of microelectrodes, dedicated for electrical measurement in chalcogenides
No full textTato práce se zabývá procesem přípravy mikroelektrod pomocí litografických metod. V teoretické části se tato práce zabývá srovnáním a popisem nejčastěji uţívaných litografických metod, jejich výhodami a specifikacemi. Poté jsou zde popsány vlastnosti nejčastěji uţívaných kovů určených pro výrobu. Praktická část se zaměřuje na popis přípravy Cu, Al mikroelektrod a popisem jejich optických a elektrických vlastností. Mikroelektrody mají slouţit pro spínání CB RAM paměti.This work examines the process of manufacturing microelectrodes using lithography techniques. The theoretical part of this work focuses on the comparison and the description of the most frequently used lithographic methods, their advantages and specifications. Then there are described the properties of most commonly used metals to manufacture. The practical part focuses on the preparation of Cu, Al microelectrodes and a description of their optical and electrical properties. Microelectrodes are used for switching the CB RAM.Katedra obecné a anorganické chemieStudent přednesl výsledky své bakalářské práce a zodpověděl dotazy členů komise.Dokončená práce s úspěšnou obhajobo
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
Technicko-ekonomické aspekty sestavy strojních linek pro zakládání porostu
No full textThis bachelor thesis deals with technologies and machinery for foundation of vegetation. The first part of this thesis deals with soil properties and their possible influence. The second part describes technologies in agriculture and their advantages and disadvantages. The third part of this thesis describes used machines for soil cultivation and sowing and their use. The fourth part evaluates some technologies. At the end of this bachelor there is described possible development of this technologies
Synthesis and properties of Ag-Ge-Sb-S glasses
No full textTato diplomová práce se zabývá přípravou a charakterizací chalkogenidového skla o
složení (GeS2)0,5.(Sb2S3)0,5 u něhož byla provedena dotace stříbrem o různém procentuálním
zastoupení. Teoretická část této práce se zabývá přípravou chalkogenidových skel a jejich
vlastnostmi. Dále pak vlastnostmi mnou studovaného systému (GeS2)0,5.(Sb2S3)0,5 a popisem
metod, které byly použity pro charakterizaci skla.This diploma thesis deals with preparation and characterization of chalcogenide
glasses with composition (GeS2)0,5 (Sb2S3)0,5. This samples were doped with silver in different
concentrations. The theoretical part of this work deals with preparation and properties of
chalcogenide glasses.Fakulta chemicko-technologickáDokončená práce s úspěšnou obhajobo
Minimalizační technologie zpracování půdy k obilninám v podmínkách suché oblasti
No full textThis thesis deals with the effects of forage crops, methods of soil treatment and other factors that affect quantitative and qualitative features of winter wheat in the vegetation periods 2017/2018, 2018/2019 and 2019/2020. The Sultan variety was selected for examination. The experiment was based on a field experimental station of Mendel University in Brno on the site of the School Agricultural Enterprise in the Žabčice locality
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