1,720,954 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
No full text“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
No full textWe 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
Usability of Unmanned Aircraft Systems in Animal Production
No full textPráce je zaměřena na ověření využitelnosti bezpilotních systémů v zemědělství se zaměřením na volný chov a jejím cílem je poukázat na nově vznikající segment, ve kterém může být sloučena technologie 21. století s něčím tak starým, jako je zemědělství, kde bylo doposud využíváno konvenčních metod při nutnosti monitoringu zvířectva a pastvin, což může být optimalizováno za využití bezpilotních systémů. Právě tato práce spojuje teoretické znalosti o bezpilotních systémech s reálnými požadavky v zemědělství a ve formě případové studie je aplikuje do praxe, kde je porovnává s aktuálně využívanými metodami, což se ve výsledku projevuje jako úspora na finanční a časové náročnosti a poukazuje na nový potenciál bezpilotních systémů.The thesis is aimed at verifying the applicability of unmanned systems in agriculture with a focus on free range farming and aims to highlight an emerging segment where 21st-century technology can be merged with something as old as agriculture, where conventional methods have been used so far with the need to monitor livestock and pastures, which can be optimized using unmanned systems. It is this work that combines the theoretical knowledge of unmanned systems with real requirements in agriculture and applies it in the form of a case study to practice, where it is compared with currently used methods, which in the end translates into financial and time savings, thus highlighting the new potential of unmanned systems
Possible Defences Against UA for Prison Service of the Czech Republic
No full textPráce je zaměřena na problematiku ochrany vězeňských objektů proti narušitelským bezpilotním systémům. Cílem práce bylo navrhnout možné způsoby obrany Vězeňské služby ČR proti narušitelským bezpilotním letadlům s ohledem na technickou a organizační proveditelnost. V současné době se jedná o velice palčivé téma, které je předmětem diskuze mezi odbornou veřejností. Zároveň se tím více a více poukazuje na zranitelnost těchto objektů, které se v současné chvíli nemají jak před těmito hrozbami chránit. S větším situačním povědomím o této zranitelnosti tak roste i počet pokusů o narušení perimetrů věznic. Hlavním účelem těchto narušení je pašování kontrabandu, zbraní nebo výbušnin dovnitř střežených prostor. Právě proto je požadavek po nasazení adekvátních řešení, které by těmto negativním vlivům zamezily a nastavily zpět vysokou úroveň zabezpečení. Výsledky práce ukázaly, že v rámci zkoumaných řešení mají všechny své výhody i omezení, přičemž řešení založené na technologii vzdálené identifikace se jeví jako vhodnější pro praktickou implementaci v podmínkách VS ČR.This thesis focuses on the issue of protecting prison facilities against intrusive unmanned aerial systems. The objective of the work was to propose possible defense strategies for the Prison Service of the Czech Republic against hostile drones, with regard to both technical and organizational feasibility. This is currently a highly pressing topic frequently discussed among security professionals. It highlights the growing vulnerability of these facilities, which presently lack effective protection against such threats. As awareness of this vulnerability increases, so does the number of attempts to breach prison perimeters. The main goal of these intrusions is typically the smuggling of contraband, weapons, or explosives into secured areas. Therefore, there is a clear demand for the deployment of adequate solutions that would mitigate these risks and restore a high level of security. The findings of this work showed that each of the analyzed methods has its own advantages and limitations; however, the solution based on Remote ID technology appears more suitable for practical implementation within the conditions of the Czech prison system
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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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