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Asociación entre el uso de redes sociales en teléfonos inteligentes, el rendimiento deportivo y la concentración en jugadores de tenis de mesa
No full textTesis 11558El presente estudio tuvo como objetivo analizar el efecto agudo del uso de las redes sociales, con teléfonos inteligentes, sobre el rendimiento deportivo de jugadores de tenis de mesa respecto a la velocidad de reacción, la precisión de ejecución del golpe y la concentración. Participaron 14 atletas jóvenes (7 hombres, 7 mujeres) (edades: 10.86 ± 1.83 años), quienes forman parte del club de tenis de mesa (experiencia deportiva: 2.43 ± 0.65 años). Este estudio presenta un diseño cuasiexperimental comparativo aleatorizado y contrabalanceado. Se evaluaron cuatro variables: Stroop Test, velocidad de reacción, prueba específica de tenis de mesa, concentración (Test de Toulouse-Piéron). Se encontraron diferencias significativas pre vs post en los aciertos, errores y puntos totales en ambos grupos (p< 0.01). Además, no existieron diferencias significativas por grupo en los tres test de campo. Se destaca que 30 min de GRS o GVD en niños, provoca una mejora en los puntajes, aciertos y errores en el Stroop Test; lo que sugiere que la exposición aguda a estímulos virtuales independientemente del tipo, provoca una potenciación de la habilidad de control inhibitorio y atenciónEscuela Ciencias de Movimiento Humano y Calidad de Vid
Asociación entre el uso de redes sociales en teléfonos inteligentes, el rendimiento deportivo y la concentración en jugadores de tenis de mesa.
No full textTesis 11558El presente estudio tuvo como objetivo analizar el efecto agudo del uso de las redes
sociales, con teléfonos inteligentes, sobre el rendimiento deportivo de jugadores de
tenis de mesa respecto a la velocidad de reacción, la precisión de ejecución del
golpe y la concentración. Participaron 14 atletas jóvenes (7 hombres, 7 mujeres)
(edades: 10.86 ± 1.83 años), quienes forman parte del club de tenis de mesa
(experiencia deportiva: 2.43 ± 0.65 años). Este estudio presenta un diseño
cuasiexperimental comparativo aleatorizado y contrabalanceado. Se evaluaron
cuatro variables: Stroop Test, velocidad de reacción, prueba específica de tenis de
mesa, concentración (Test de Toulouse-Piéron). Se encontraron diferencias
significativas pre vs post en los aciertos, errores y puntos totales en ambos grupos
(p< 0.01). Además, no existieron diferencias significativas por grupo en los tres test
de campo. Se destaca que 30 min de GRS o GVD en niños, provoca una mejora en
los puntajes, aciertos y errores en el Stroop Test; lo que sugiere que la exposición
aguda a estímulos virtuales independientemente del tipo, provoca una potenciación
de la habilidad de control inhibitorio y atención.The purpose of this study was to analyze the acute effect of using social
networks, on smartphones, on the sports performance of table tennis players
regarding reaction speed, execution accuracy of the stroke, and concentration. 14
young athletes (7 men, 7 women) (ages: 10.86 ± 1.83 years) participated, who are
part of the table tennis club (sport experience: 2.43 ± 0.65 years). This study
presents a randomized and counterbalanced comparative experimental design. Four
variables were evaluated: Stroop Test, reaction speed, specific table tennis test,
concentration (Toulouse-Piéron Test). Significant pre vs post differences were found
in hits, errors, and total points in both groups (p <0.01). Additionally, there were no
significant differences between the groups in the three field tests. It is highlighted
that 30 minutes of GRS or GVD in children causes an improvement in scores, hits,
and errors in the Stroop Test; suggesting that acute exposure to virtual stimuli
regardless of type, causes an enhancement of the ability to inhibit control and
attention.Universidad Nacional, Costa Ric
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
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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