Results 11 to 20 of about 346,671 (151)

Characterization of gravity waves in the lower ionosphere using very low frequency observations at Comandante Ferraz Brazilian Antarctic Station [PDF]

open access: yesAnnales Geophysicae, 2020
The goal of this work is to investigate the gravity wave (GW) characteristics in the low ionosphere using very low frequency (VLF) radio signals. The spatial modulations produced by the GWs affect the conditions of the electron density at reflection ...
E. Correia   +4 more
doaj   +1 more source

Evaluation of aluminum resistance in hybrids of Brachiaria decumbens Stapf. [PDF]

open access: yesCrop Breeding and Applied Biotechnology, 2015
The objective of this work was to evaluate hybrids of Brachiaria decumbens for root vigor and aluminum resistance as components of edaphic adaptation.
Keise Mara Belmonte de Oliveira   +4 more
doaj   +1 more source

Assessment of the Virulence of the Burkholderia mallei Strain BAC 86/19 in BALB/c Mice

open access: yesMicroorganisms, 2023
Burkholderia mallei is an aerobic, Gram-negative, non-motile bacillus. As an obligate mammalian pathogen, it primarily affects solipeds. Although rarely transmitted to humans, the disease it causes, glanders, is classified as a zoonosis.
Emanuelle Baldo Gaspar   +12 more
doaj   +1 more source

Improved MALDI-TOF MS Identification of Mycobacterium tuberculosis by Use of an Enhanced Cell Disruption Protocol

open access: yesMicroorganisms, 2023
Mycobacterium tuberculosis is the microorganism that causes tuberculosis, a disease affecting millions of people worldwide. Matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) is a fast, reliable, and cost ...
Gisele Bacanelli   +2 more
doaj   +1 more source

Dependence of Stellar Differential Rotation on Effective Temperature and Rotation: An Analysis from Starspot Transit Mapping

open access: yesThe Astrophysical Journal, 2023
Stellar rotation is crucial for studying stellar evolution, since it provides information about age, angular momentum transfer, and magnetic fields of stars.
Alexandre Araújo, Adriana Valio
doaj   +1 more source

“Aqui a voz da Argélia...”

open access: yesRevista de Filosofia, 2021
O presente artigo foi originalmente publicado no ano de 1959 por Frantz Fanon (1925-1961) durante a Revolução Argelina (1954-1962) no livro que ganha o título de Sociologie d’une Révolution (L’An V de la Révolution Algérienne).
Jeferson da Costa Vaz   +1 more
doaj   +1 more source

“FACEBOOK” AND PARTIES IN THE POLITICAL CAMPAIGNS 2019 IN UKRAINE AND POLAND: COMPARATIVE ASPECT

open access: yesМіжнародні відносини: теоретико-практичні аспекти, 2020
The article analyzes some peculiarities of the campaigning in social media (on Facebook example) by the political forces that entered (according to the election results 2019) to their national parliaments (the Verkhovna Rada of Ukraine and the Sejm of ...
Mykhailo Radio
doaj   +1 more source

Mídia, celebrização e música popular: o caso de Dalva de Oliveira e Herivelto Martins

open access: yesRevista Brasileira de História da Mídia, 2021
A partir da famosa polêmica do casal de cantores Dalva de Oliveira e Herivelto Martins, entre as décadas de 1940 e 1950, este artigo busca discutir como a busca pela fama, dentro do sistema industrial de produção e circulação da canção, e os interesses ...
Herom Vargas, Mozahir Salomão Bruck
doaj   +1 more source

Characterization and selection of interspecific hybrids of Brachiaria decumbens for seed production in Campo Grande – MS [PDF]

open access: yesCrop Breeding and Applied Biotechnology, 2016
The breeding program Brachiaria developed by Embrapa Beef Cattle provides studies to obtain forage with agronomic characters desired by farmers. In this regard, in 2013 and 2014, a study was carried out in order to select the best Brachiaria decumbens ...
Lenise Castilho Monteiro   +6 more
doaj   +1 more source

Aliados em ondas curtas: o rádio brasileiro na II Guerra Mundial

open access: yesRevista Maracanan, 2022
A mídia radiofônica foi uma das mais impressionantes tecnologias a se desenvolver no século XX, deixando de ser a caixa de ruídos de 1918 para se transformar num sólido sistema de publicidade, de difusão de ideias e conceitos de todas as naturezas.
Orlando de Barros
doaj   +1 more source

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