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142.263  Articles
1 of 14.227 pages  |  10  records  |  more records»
This article introduces (and hopes to encourage thereby) the econometrics practitioner to (use) a homoscedasticity test referred to in the field of statistics as the modified Levene test. Econometrics orthodoxy (from University to practice level) has focu... see more

This work aimed to evaluate the I-type error rate and the power of Levene’s multivariate test using different location parameters to compare k covariance matrices. Monte Carlo’s simulation and bootstrap were used for this purpose. Configurations were cons... see more

Por volta de 1920, Fisher propôs a análise de variância, que visa a decomposição da variação total em fontes de variação conhecidas. Para validade dos resultados da análise de variância, esta depende que algumas condições pressupostas sejam atendidas. Uma... see more

Two analytical spectroscopic techniques viz. EDXRF and FAAS were employed in analyzing the four heavy metals i.e. Cu, Zn, Mn and Fe in 24 soil samples. The heavy metals in understudy soil were found to have very low to high concentration range and so both... see more

Disinfeksi merupakan langkah mencegah penularan dengan membunuh virus [COVID-19] yang mungkin masih bertahan di benda atau tempat tertentu. Penyemprotan disinfektan, selain di rumah, sebaiknya dilakukan juga di tempat ramai dan fasilitas umum atau benda l... see more

Introdução: O Teste Citogenético do Micronúcleo é um biomarcador que fornece informações para avaliar lesões cromossômicas oriundas de ações genotóxicas. A frequência de micronúcleos pode ser mensurada em situações de exposição a ambiente e substâncias co... see more

The wound is an injury to the part of the body where the skin and underlying tissues lose its tissue continuity. Lemongrass is one of the grass plants that often used as a medicine that can function as an antibacterial, anti-inflammatory, and antioxidant ... see more

This study aims to determine the effects of the layered curriculum on students’ achievement, permanence and attitudes towards Science and Technology course.  The research was conducted with two classes including an experimental and a control class at... see more

The paper presents an analysis of the course and frequency of high water stages in selected catchments of the upper Vistula basin in the south of Poland. The following rivers were investigated: the Dunajec–Nowy Targ-Kowaniec cross-section, the Rudawa–Bali... see more

1 of 14.227 pages  |  10  records  |  more records»