Interval Sampling
Mostrando 13-24 de 121 artigos, teses e dissertações.
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13. Comparison of beat cloth and entomological net methods for determining faunistic indices of soybean in Rio Grande do Sul, Brazil
ABSTRACT Estimates of diversity indices provide information on distribution, richness and abundance of species within a community. The aim of the current study was to estimate faunistic indices (richness, constancy, dominance and abundance) of the species collected by beat cloth and entomological net sampling methods in different soybean crops and to determi
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-12
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14. Sandfly species diversity in association with human activities in the Kani tribe settlements of the Western Ghats, Thiruvananthapuram, Kerala, India
Sandfly prevalence in the Kani tribe settlements of Western Ghats in India was investigated. A total of 1,279 sandflies comprising 17 species was obtained. Sandfly abundance showed a negative correlation (r = -0.97, p = 0.003) with increase in altitudinal ranges from 0-1,000 m. When sandfly samples were grouped according to landscape characteristics of the l
Mem. Inst. Oswaldo Cruz. Publicado em: 31/03/2015
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15. Correlates of unprotected sex in a sample of young club drug users
OBJECTIVES: To assess the demographic characteristics, psychiatric symptoms, substance use patterns, and sexual risk behaviors in a sample of club drug users to identify factors associated with unprotected sex during the 12 months prior to the interview. METHODS: This cross-sectional study employed the targeted sampling and ethnographic mapping approaches
Clinics. Publicado em: 2013-11
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16. Conditional factors for untreated caries in 12-year-old children in the city of Sao Paulo
The aim of the study was to analyze what sociodemographic and economic variables were associated with the presence of untreated caries in 12-year-old children in the city of São Paulo. This cross-sectional study had a complex sample design. It was based on secondary data generated by the Levantamento epidemiológ
Braz. oral res.. Publicado em: 2013-07
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17. Prevalence and factors associated with frailty in an older population from the city of Rio de Janeiro, Brazil: the FIBRA-RJ Study
OBJECTIVE: Frailty syndrome can be defined as a state of vulnerability to stressors resulting from a decrease in functional reserve across multiple systems and compromising an individual's capacity to maintain homeostasis. The purpose of this study was to determine the prevalence of frailty and its association with social and demographic factors, functional
Clinics. Publicado em: 2013-07
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18. PREDICCIÓN BAYESIANA DE PARÁMETROS GENÉTICOS EN CLONES DE Eucalyptus globulus BAJO CONDICIONES DE SUPLEMENTO HÍDRICO
ABSTRACT A Bayesian analysis of genetic parameters for growth traits at twelve months after planting was carried out in twenty nine Eucalyptus globulus clones in southern Chile. Two different environmental conditions were considered: 1) Non-irrigation and; 2) Plants were irrigated with a localized irrigation system. The Bayesian approach was performed using
Ciênc. Florest.. Publicado em: 2013-06
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19. Uma ánalise do procedimento de controle on-line de qualidade de Taguchi baseado nos resultados de uma sequência de inspeções
In this paper, a procedure for the on-line process control of variables is proposed. This procedure consists of inspecting the m-th item from every m produced items and deciding, at each inspection, whether the process is out-of-control. Two sets of limits, warning ( bW 0 Ý ) and control ( bC 0 Ý ), are used. If the value of the monitored statistic falls b
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/03/2012
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20. An analysis of Taguchi's on-line quality monitoring procedure for variables based on the results of a sequence of inspections
In this paper, a procedure for the on-line process control of variables is proposed. This procedure consists of inspecting the m-th item from every m produced items and deciding, at each inspection, whether the process is out-of-control. Two sets of limits, warning (µ0 ± W) and control (µ0 ± C), are used. If the value of the monitored statistic falls bey
Pesquisa Operacional. Publicado em: 03/04/2012
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21. Uma fundamentação para sinais e sistemas intervalares
Neste trabalho utiliza-se a matemática intervalar para estabelecer os conceitos intervalares das principais ferramentas utilizadas em processamento digital de sinais. Mais especificamente, foram desenvolvidos aqui as abordagens intervalares para sinais, sistemas, amostragem, quantização, codificação, transformada Z e transformada de Fourier. É feito um
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/12/2011
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22. Doenças cardiovasculares em adultos : fatores de risco e utilização de serviços preventivos
Cardiovascular diseases account for the first cause of morbid-mortality in Brazil and worldwide. Despite their high incidence and severity, most of them could be avoided by measures of control and prevention of risk factors. This present study aimed at the characterization of the prevention against cardiovascular diseases in adults residing within the area c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/06/2010
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23. Distribuição espacial e variação temporal da composição de espécies de borrachudos (Diptera: Simuliidae) em uma microbacia situada no norte do Paraná
In this work, the survey of simuliid species and the study of their spatial distribution in four streams of a small watershed situated in Londrina, Paraná State, were carried out from January to October 2007. Changes in the species composition of the breeding sites were also checked along the sampling months. Seventeen black fly species were found, being Si
Neotropical Entomology. Publicado em: 2010-04
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24. Monitoramento ambiental de vinhedos utilizando uma rede de sensores sem fio que coleta dados com um intervalo de amostragem variável. / Environmental monitoring of vineyards using a wireless sensor network that collect data with a variable sampling interval.
Neste trabalho foi realizado um estudo de aspectos relacionados ao uso de uma Rede de Sensores sem Fio, como uma tecnologia de apoio para o monitoramento ambiental em vinhedos. Com o intuito de estender o tempo de duração das baterias dos nos sensores dessa rede, procurou-se evitar coletas desnecessárias de dados. O programa aplicativo dos nos foi redefin
Publicado em: 2010