Results 31 to 40 of about 805 (181)

Traffic Intensity Estimation in Finite Markovian Queueing Systems

open access: yesMathematical Problems in Engineering, Volume 2018, Issue 1, 2018., 2018
In many everyday situations in which a queue is formed, queueing models may play a key role. By using such models, which are idealizations of reality, accurate performance measures can be determined, such as traffic intensity (ρ), which is defined as the ratio between the arrival rate and the service rate.
Frederico R. B. Cruz   +4 more
wiley   +1 more source

Use of sweet ‘Pêra’ peel as an adsorbent in the treatment of textile effluents

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental
The disposal of industrial wastewater into aquatic bodies without proper treatment can cause severe damage to the environment and human health. The objective of this study was to perform the drying of the sweet orange (Citrus sinensis L.
Ketyla K. R. do Nascimento   +5 more
doaj   +1 more source

Medidas do grau de precisão experimental em ensaios de competição de cultivares de milho Measures of experimental precision degree in corn cultivar competition trials

open access: yesPesquisa Agropecuária Brasileira, 2009
O objetivo deste trabalho foi avaliar a adequação de algumas estatísticas como medidas do grau de precisão experimental, e as relações entre elas. Foram usados os dados de produtividade de grãos de 101 ensaios de competição de cultivares de milho (Zea ...
Alberto Cargnelutti Filho   +1 more
doaj   +1 more source

Durability of Mortar Made with Fine Glass Powdered Particles

open access: yesAdvances in Materials Science and Engineering, Volume 2017, Issue 1, 2017., 2017
Different studies investigate the use of waste glass in Portland cement compounds, either as aggregates or as supplementary cementitious materials. Nevertheless, it seems that there is no consensus about the influence of particle color and size on the behavior of the compounds.
Rosemary Bom Conselho Sales   +6 more
wiley   +1 more source

Tamanho de amostra para estimação da média e do coeficiente de variação em milho

open access: yesPesquisa Agropecuária Brasileira, 2014
O objetivo deste trabalho foi determinar o tamanho de amostra necessário para a estimação da média e do coeficiente de variação em caracteres de híbridos simples, triplo e duplo de milho, em diferentes safras e níveis de precisão, por reamostragem com ...
Marcos Toebe   +4 more
doaj   +1 more source

The Role of PPAR Gamma in Systemic Sclerosis

open access: yesPPAR Research, Volume 2015, Issue 1, 2015., 2015
Fibrosis is recognized as an important feature of many chronic diseases, such as systemic sclerosis (SSc), an autoimmune disease of unknown etiology, characterized by immune dysregulation and vascular injury, followed by progressive fibrosis affecting the skin and multiple internal organs.
Andréa Tavares Dantas   +8 more
wiley   +1 more source

PRODUÇÃO DE BIODIESEL POR ROTA ETÍLICA E METÍLICA A PARTIR DE PLANEJAMENTO FATORIAL

open access: yesRevista Brasileira de Ciências Ambientais, 2020
A análise realizada nesta pesquisa teve como objetivo o desenvolvimento de um processo para a produção de biodiesel em escala de bancada. A reação foi realizada pelo método de transesterificação alcalina, em que os reagentes foram submetidos à ...
Laurênio Ferreira Lopes   +6 more
doaj  

Tamanho ótimo de parcela em milho com comparação de dois métodos Optimum plot size in corn compared with two methods

open access: yesCiência Rural, 2011
O objetivo deste trabalho foi comparar dois m todos de estimação do tamanho ótimo de parcela (Xo) para avaliar 12 caracteres de híbridos simples, triplo e duplo de milho e verificar a variabilidade do Xo entre caracteres e entre híbridos.
Alberto Cargnelutti Filho   +4 more
doaj   +1 more source

Long‐term jaguar demography underscores the ecological value of Amazonian floodplains

open access: yesJournal of Applied Ecology, Volume 63, Issue 7, July 2026.
Our results provide the first estimates of recruitment and apparent survival for Amazonian jaguars, key parameters for guiding conservation. We show that seasonal wetlands—the Amazonian floodplain forest and reported estimates from Pantanal and the Llanos—harbour the highest jaguar densities across the species' range.
Raíssa Sepulvida   +8 more
wiley   +1 more source

Synthesis of a Novel Thiazolidinedione and Evaluation of Its Modulatory Effect on IFN‐γ, IL‐6, IL‐17A, and IL‐22 Production in PBMCs from Rheumatoid Arthritis Patients

open access: yesBioMed Research International, Volume 2013, Issue 1, 2013., 2013
Rheumatoid arthritis (RA) is an autoimmune disease frequently characterized by chronic synovitis of multiple joints. The pathogenesis of RA is complex and involves many proinflammatory cytokines as Th17 related ones. PPARγ is a nuclear receptor activator that represses proinflammatory gene expression.
Laurindo Ferreira da Rocha Junior   +11 more
wiley   +1 more source

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