1,720,976 research outputs found
Interactive 3D Graphics in PDF Documents
Full text linksummary:Příspěvek navazuje na článek [8] a všímá si zejména změn, které v problematice vkládání interaktivní 3D grafiky do PDF dokumentů nastaly od doby jeho publikování. Balíček movie15 byl nahrazen balíčkem media9, který začleňování 3D grafiky do PDF dokumentů významným způsobem zjednodušuje. Druhá část příspěvku popisuje současné možnosti tvorby matematických 3D objektů a jejich konverzi do formátů PRC a U3D a zaměřuje se zejména na využití open source produktů.summary:The paper presents the authors' experience with including interactive 3D objects into PDF documents by using pdfTeX and the media9 package. This procedure preserves the possibility of the user's interaction with 3D objects even in the final PDF document without the necessity of the local installation of original graphical programs. In the second part, creation of 3D graphics in several mathematics programs and its conversion to PRC (U3D) with the use of commercial and open source software has been described
Publishing interactive tests using AcroTeX
No full textsummary:V tomto článku popíšeme, jak vytvořit interaktivní PDF dokumenty pro výuku. Bude se jednat o využití kolekce volně šiřitelných LaTeXových maker nazvaných AcroTeX eDucation Bundle, které umožňují tvorbu interaktivních testů v PDF formátu. Iniciátorem projektu byl profesor D. P. Story.summary:In this paper we describe the preparation of interactive tests in PDF with AcroTeX eDucation Bundle, http://acrotex.net/
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
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
Internet a střední školy (2)
No full textPokračování článku o využití internetu na středních školách se zabývá například prostředím Usenet News, tedy systémem elektronických diskusních skupin. Dále pak protokolem Telnet, který slouží k přihlášení na vzdálený počítač v síti. Zmíněn je i protokol FTP, díky kterému je možné přenášet mezi počítači soubory. V článku jsou uvedeny základní informace o prostředích a protokolech a také možnosti přístupu k těmto službám
On an application of a computer for teaching mathematical analysis: Local extrema of functions of two variables
No full textInternet a střední školy (3)
No full textČlánek pojednává o službě Gopher, která umožňuje práci s informacemi umístěnými na různých počítačových sítích. Gopher je založen na modelu klient – server. Další službou, kterou článek popisuje je WWW, informační systém, založený na hypertextovém modelu. WWW opět pracuje na modelu klient – server. Článek popisuje základní práci s oběma službami
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