1,720,954 research outputs found
The finite subsets of natural numbers
Get PDFThe article discusses relationships between triangle and square numbers. The stress is laid upon numerical
equality. A finite set of these numbers and its subsets are given by software. Finding natural numbers with a
specific property is of great didactic value. This topic was included into the course of study preparing future
elementary school teachers. The article deals with comparison of mathematical problem solving procedures by 1st
and 4th year elementary school student teachers. The method of experiment was applied. Accessible software is
used in solving more complex problems in the 4th year
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
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
Afinná geometria v analytickom a didaktickom kontexte - Zobrazenia, vizualizácie, aplikácie
No full textCieľom učebnice je poskytnúť študentom prehľad základných princípov afinného priestoru a zobrazení. Prezentované učivo postupne prechádza od fundamentálnych konceptov vektorového priestoru cez základy afinných transformácií až po ich aplikácie. Učebnica je štruktúrovaná tak, aby nadväzovala na znalosti z lineárnej algebry, čím poskytuje čitateľom pevný teoretický základ a zároveň ich pripravuje na pokročilejšie štúdium geometrie a príbuzných oblastí.
Prvá časť sa venuje základom vektorových priestorov, čo zahŕňa lineárnu závislosť, dimenziu, bázu a skalárny súčin. Táto sekcia slúži ako vstupná brána pre pochopenie štruktúry afinného priestoru, kde sú predstavené jeho základné vlastnosti vrátane vzájomnej polohy podpriestorov. Nasledujúca časť sa sústreďuje na afinné zobrazenia, ktoré sú kľúčovým nástrojom na pochopenie transformácií geometrických útvarov, ako sú posunutia, rovnoľahlosti a osové súmernosti. Záver učebnice zahŕňa aj konkrétne príklady a úlohy, ktoré pomáhajú študentom upevniť teoretické poznatky prostredníctvom praktických aplikácií.
V súčasnosti zohrávajú informačné a komunikačné technológie (IKT) dôležitú úlohu vo vzdelávaní, a analytická geometria nie je výnimkou. Prostredie GeoGebra, ktoré ponúka intuitívne ovládanie a široké možnosti vizualizácie, predstavuje efektívny nástroj na demonštráciu princípov afinných zobrazení a ich aplikácií. Applety vytvorené v GeoGebre umožňujú študentom interaktívne skúmať rôzne geometrické situácie, meniť parametre a okamžite sledovať výsledky svojich úprav. Tento prístup podporuje nielen lepšie pochopenie abstraktných konceptov, ale aj aktívne zapojenie študentov do procesu učenia. Okrem toho poskytuje možnosť skúmať zložité geometrické transformácie, ktoré by inak vyžadovali zložité manuálne výpočty.
Učebnica je určená pre študentov vysokých škôl, najmä tých, ktorí sa zaoberajú matematikou, fyzikou či informatickými disciplínami. Autori veria, že poskytnutý obsah im pomôže nielen pri riešení úloh v rámci štúdia, ale aj pri praktickom využití geometrických metód v ich budúcej kariére.KEGA 010TTU-4/2025 Rozvoj informatického a algoritmického myslenia žiakov prostredníctvom efektívneho začlenenia moderných technológií do vyučovania informatiky a matematik
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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