Autor: de Lima, Leonardo - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Graphs with All But Two Eigenvalues In [−2, 0]
Autorzy:: Abreu, Nair
Alencar, Jorge
Brondani, André
de Lima, Leonardo
Oliveira, Carla
Powiązania:: https://bibliotekanauki.pl/articles/31804163.pdf
Data publikacji:: 2020-05-01
Wydawca:: Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:: graph spectrum
complete multipartite graph
graph determined by its spectrum
Opis:: The eigenvalues of a graph are those of its adjacency matrix. Recently, Cioabă, Haemers and Vermette characterized all graphs with all but two eigenvalues equal to −2 and 0. In this article, we extend their result by characterizing explicitly all graphs with all but two eigenvalues in the interval [−2, 0]. Also, we determine among them those that are determined by their spectrum.
Źródło:: Discussiones Mathematicae Graph Theory; 2020, 40, 2; 379-391
2083-5892
Pojawia się w:: Discussiones Mathematicae Graph Theory
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Running Anaerobic Sprint Test, Lactate Minimum and Critical Velocity Protocol in Shuttle Futsal Testing
Autorzy:: Dalcheco Messias, Leonardo Henrique
Carvalho de Andrade,, Vinícius
Rosante, KauêTomazine
Buzatto de Lima,, Tiago
de Oliveira,, Ramon Martins
de Barros Manchado-Gobatto, Fúlvia
Rodrigues Santa Cruz,, Ricardo Alexandre
Powiązania:: https://bibliotekanauki.pl/articles/1054660.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:: Aerobic-anaerobic transition
exercise evaluation
fitness testing
Opis:: The aims of this study were to investigate whether the running anaerobic sprint test, lactate minimum and critical velocity protocol can be applied in shuttle futsal testing, and to investigate if these protocols provide related variables. Seven male welltrained futsal players were evaluated. The lactate minimum test (LacMin) consisted of three phases: a) a hyperlactatemia phase using the running anaerobic sprint test (RAST); b) recovery phase; c) an incremental shuttle test for the lactate minimum speed (LMS) determination. Successful rate (SR) was calculated for feasibility analysis. Peak, mean and minimum power and fatigue index were obtained by the RAST application (six bouts – 35 meters). The critical velocity protocol (CV) was applied through three exhaustive shuttle tests (12, 13 and 14 km/h) with distances of 20 meters. Critical velocity (Cv) and anaerobic running capacity (ARC) were analysed by the linear (velocity vs.1/tlim) and hyperbolic (time vs.velocity) models. Fits of regression (R²) were considered as the main result for feasibility analysis of CV. ANOVA showed a difference between linear (11.04 ±0.55 km/h) and LMS (9.67 ±0.50 km/h), and no significant correlation was observed between them. High SR (85.71%) was observed for LacMin, and high R² for CV (linear-R² = 0.99 ±0.04; hyperbolic-R² = 0.98 ±0.02).Overall, the RAST, LacMin and CV can be successfully applied in shuttle futsal testing, nonetheless, precaution is necessary since the test results were not related.
Źródło:: Central European Journal of Sport Sciences and Medicine; 2015, 12, 4; 5-15
2300-9705
2353-2807
Pojawia się w:: Central European Journal of Sport Sciences and Medicine
Dostawca treści:: Biblioteka Nauki

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