2,101,904 research outputs found
THE METHOD OF PROJECTS IN MATH LESSONS
No full text<p><i>This article discusses the use of the project method in math lessons and the analysis of various projects. it gives an idea of various methods to give students effective knowledge.</i></p>
ABOUT THE STUDY OF MATHEMATICAL MODELS
No full text<p><i>The use of mathematical methods in solving practical problems is not only the main issueof courses in the field of mathematics, but also one of the important issuesfacing courses with a special practical character. In simple practical examples, it is possible to demonstrate the application of mathematical concepts in the study of real phenomena, for example, the concept of the derivative is the speed of movement of a material point, the linear density of a star is used to derive the integral - work force, differential problems - deriving equations of radioactive decay,etc. Of course, with this, it isinappropriate to apply the concept that it is not appropriate to involve experts in the field of mathematics in solving practical problems. It is necessary and useful to use experts in the field of mathematics in solving practical problems.</i></p>
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
Musical Et Poétique / Suzor de. - St. Petersbourg : Bellizard [u.a.], [ca. 1848]
No full textMUSICAL ET POÉTIQUE / SUZOR DE. - ST. PETERSBOURG : BELLIZARD [U.A.], [CA. 1848]
Musical Et Poétique / Suzor de. - St. Petersbourg : Bellizard [u.a.], [ca. 1848]
Un Seul Regard / H. Vieuxtemps (Année 1) (1
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
HYDROTHERMAL SYNTHESIS, CHARACTERIZATION AND ELECTROCATALYTIC ACTIVITY OF LA0.8SR0.2MNO3 NANOCUBES FOR OXYGEN REDUCTION REACTION
No full textThe La0.8Sr0.2MnO3 nanocubes have been synthesized by simple precipitation followed by hydrothermal process. The as-obtained nanocubes were characterized by SEM, TEM, EDS, XRD and ICP-AA. The SEM and TEM images clearly showed cube type morphology of reaction product. The XRD pattern gave evidence for the phase purity and high crystallinity of the La0.8Sr0.2MnO3 nanocubes. The ICP-AA analysis along with EDS confirms the stoichiometry of the product. Electrochemical activity for oxygen reduction reaction was carried out in 1 M KOH. The oxygen reduction current measured by cyclic voltametry showed six times higher value for nanocubes than that of bulk catalysts of same composition
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
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