Stationarity
Mostrando 1-12 de 35 artigos, teses e dissertações.
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1. Blood donor candidates and blood donations performed between 2005 and 2019 in Minas Gerais, Brazil: A time series analysis.
ABSTRACT Introduction: Time series studies related to blood donor candidates and blood donations are rare in Brazil. Population aging suggests a better understanding of the context related to blood donor candidates and blood donations performed. Objective: The monthly series of candidates eligible to donate blood and actual donations between 2005 and 2019
Hematology, Transfusion and Cell Therapy. Publicado em: 2022
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2. Dynamic anisotropy and non-linear geostatistics supporting short term modelling of structurally complex gold mineralization
Abstract Non-linear geostatistical methods are known to deal appropriately with the geological and geometrical complexity of gold deposits. This article reports the results related to an investigation to improve the gold content estimate based on restricted ore modeling to honor the structural aspects that control the mineralization. The grade domains are de
REM, Int. Eng. J.. Publicado em: 2021-06
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3. Epidemiological study of rabies in cattle in southern Brazil: spatial and temporal distribution from 2008 to 2017
RESUMO: A raiva afeta várias espécies domésticas, causando perdas econômicas significativas pela morte de animais em áreas bem características da região Sul do Rio Grande do Sul. Neste contexto, o objetivo deste trabalho foi estudar a epidemiologia dos surtos de raiva observados em bovinos de janeiro de 2008 a dezembro de 2017, por meio de sua distrib
Pesq. Vet. Bras.. Publicado em: 30/09/2019
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4. SPATIALIZATION OF THE ANNUAL MAXIMUM DAILY RAINFALL IN SOUTHEASTERN BRAZIL
ABSTRACT Extreme rainfall can lead to heavy damage and losses, such as landslides, floods and agricultural productivity as well as the loss of human and animal lives. To mitigate these losses, water resources management policies are needed, among other goals, to study and predict the frequency of such events in a given region to minimize their harmful effect
Eng. Agríc.. Publicado em: 2019-02
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5. Race as Technology: From Posthuman Cyborg to Human Industry
Abstract Cyborg and prosthetic technologies frame prominent posthumanist approaches to understanding the nature of race. But these frameworks struggle to accommodate the phenomena of racial passing and racial stationarity, and their posthumanist orientation blurs useful distinctions between racialized humans and their social contexts. We advocate, instead, a
Ilha Desterro. Publicado em: 2017-08
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6. Leprosy in Southern Brazil: a twenty-year epidemiological profile
Abstract INTRODUCTION: This study evaluated leprosy rates in Rio Grande do Sul, an area with a historically low prevalence. However, recent studies are lacking. METHODS: Data extracted from a National Database were analyzed for clinical features and compared to 1980s data. Tendency was assessed via stationarity analysis. RESULTS: Between 1990 and 2011,
Rev. Soc. Bras. Med. Trop.. Publicado em: 2017-03
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7. Corwin-Schultz Bid-ask Spread Estimator in the Brazilian Stock Market
This paper tests the validity of the Corwin-Schultz bid-ask spread estimator in the Brazilian stock market. The Corwin-Schultz estimator arises as an easy way to compute asymmetric information throughout daily high and low stock prices for estimating overnight and non-negative adjusted spreads. The sample consisted of Ibovespa firms from 1986 to 2014 and was
BAR, Braz. Adm. Rev.. Publicado em: 2016-03
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8. Automatic pain quantification using autonomic parameters
The objective measurement of subjective, multi-dimensionally experienced pain is a problem for which there has not been an adequate solution. Although verbal methods (e.g., pain scales and questionnaires) are commonly used to measure clinical pain, they tend to lack objectivity, reliability, or validity when applied to mentally impaired individuals. Biopoten
Psychol. Neurosci.. Publicado em: 2014-12
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9. Early detection of metabolic and energy disorders by thermal time series stochastic complexity analysis
Maintenance of thermal homeostasis in rats fed a high-fat diet (HFD) is associated with changes in their thermal balance. The thermodynamic relationship between heat dissipation and energy storage is altered by the ingestion of high-energy diet content. Observation of thermal registers of core temperature behavior, in humans and rodents, permits identificati
Braz J Med Biol Res. Publicado em: 17/01/2014
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10. Impacto da implantaçao de perímetros irrigados na qualidade das águas superficiais da porção mineira do médio São Francisco
The irrigation projects Jaíba Gorutuba and Laguna Grande located in the mining portion of the Middle San Francisco, occupying an irrigable area of approximately 31,493 ha. As irrigated agriculture has the potential to contaminate water resources due to deforestation, the application of fertilizers and pesticides, the objective of this research was to invest
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/03/2012
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11. On S.N. Bernstein's derivation of Mendel's Law and 'rediscovery' of the Hardy-Weinberg distribution
Around 1923 the soon-to-be famous Soviet mathematician and probabilist Sergei N. Bernstein started to construct an axiomatic foundation of a theory of heredity. He began from the premise of stationarity (constancy of type proportions) from the first generation of offspring. This led him to derive the Mendelian coefficients of heredity. It appears that he had
Genetics and Molecular Biology. Publicado em: 10/05/2012
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12. NÃO-ESTACIONARIEDADE DE SÉRIES TEMPORAIS TURBULENTAS E A GRANDE VARIABILIDADE DOS FLUXOS NAS BAIXAS FREQUÊNCIAS / TIME SERIES NON-STATIONARITY AND THE LARGE LOW FREQUENCY TURBULENT FLUX VARIABILITY
A complexidade de escoamentos turbulentos causa dificuldade para a descrição de fenômenos complexos, como o transporte de grandezas vetoriais e escalares na baixa atmosfera, fazendo com que a análise de dados experimentais, principalmente séries temporais, seja amplamente utilizada. O método mais utilizado pela comunidade micrometeorológica para quant
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/08/2011