Variation Of Scales
Mostrando 13-24 de 105 artigos, teses e dissertações.
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13. Análise da Relação entre a Precipitação Média do Reservatório Orós, Brasil - Ceará, e os índices PDO e AMO Através da Análise de Changepoints e Transformada de Ondeletas
Resumo Os riscos de extremos hidrológicos para um local ou região estão associados aos modos de variação do clima, em suas diversas escalas temporais. A compreensão da variabilidade de baixa frequência ganha uma elevada importância em regiões onde eventos de seca são frequentes, por estar associada a longos períodos de secas consecutivas. O presen
Rev. bras. meteorol.. Publicado em: 30/05/2019
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14. A predictive multimetric index based on macroinvetebrates for Atlantic Forest wadeable streams assessment
Resumo: Índices Multimétricos (MMIs) são ferramentas amplamente aplicadas ao monitoramento ecológico de ecossistemas aquáticos continentais. A maior dificuldade na utilização dos MMIs em amplas escalas espaciais consiste no aumento da variabilidade ambiental associado ao aumento da escala. A covariância entre os impactos antropogênicos e o gradiente
Biota Neotrop.. Publicado em: 16/05/2019
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15. Fish population responses to hydrological variation in a seasonal wetland in southeast México
ABSTRACT Hydrological variation differently affects fish species. In the present study, the response of local populations of 13 fish local species to hydrological variation in a tropical wetland was evaluated. The objectives were to analyze the abundance response of fish species with distinct life history strategies and to assess the role of hydrological var
Neotrop. ichthyol.. Publicado em: 12/06/2017
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16. The role of terrestrial bromeliads in determining the spatial organization of plant life forms in a tropical coastal forest
ABSTRACT The interplay between plant-plant interactions and light heterogeneity in the understory of tropical forests has rarely been examined. We aimed to identify the relative importance of the understory light environment and terrestrial bromeliads in explaining the abundance and spatial organization of different plant life forms along a coastal forest gr
Acta Bot. Bras.. Publicado em: 13/03/2017
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17. More than environmental control at local scales: do spatial processes play an important role in floristic variation in subtropical forests?
ABSTRACT The effect of environmental variables on the plant species distribution in the Atlantic Forest raises the interest of researchers, but few studies, mainly at local scales, analyzed the influence of spatial factors on the environment and species distribution. Linear models and spatial correlograms were used to evaluate whether environment and space m
Acta Bot. Bras.. Publicado em: 01/04/2016
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18. Evidence of morphometric differentiation among Antarctic moss populations as a response to local microenvironment
ABSTRACTStudies on phenotypic variation among populations growing in different microenvironments may provide information about plasticity related to environmental pressures, and thus help to elucidate the potential evolutionary forces contributing to the origin and maintenance of diversity in any region. In this study we investigate morphometric variation on
Acta Bot. Bras.. Publicado em: 2015-09
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19. Geographical variation in the reproduction and sexual dimorphism of the Boddaert's tropical racer, Mastigodryas boddaerti (Serpentes: Colubridae)
We obtained data on time of sexual maturity, dimorphism, fecundity and on the reproductive cycle of Mastigodryas boddaerti (Sentzen, 1796) through the examination of 321 preserved specimens, of which 221 were collected in the Brazilian Amazon region and 100 in the Cerrado savannas of Central Brazil. The degree of sexual size dimorphism (snout-vent length, SV
Zoologia (Curitiba). Publicado em: 2013-10
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20. Generalized linear differential equations in a Banach space: continuous dependence on parameters and applications / Equações diferenciais generalizadas lineares em espaços de Banach: dependência contínua com relação a parâmetros e aplicações
The purpose of this work is to investigate continuous dependence on parameters for generalized linear differential equations in a Banach space- valued setting. More precisely, we establish a theorem inspired by the clas- sical continuous dependence result due to Z. Opial. In addition, our second outcome extends, to Banach spaces, the result proved by M. Asho
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/02/2012
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21. Evolução e ecologia de tricomas em Bignonieae (Bignoniaceae): estruturas morfológicas de defesa anti-herbivoria? / Evolution and ecology of trichomes in Bignonieae (Bignoniaceae): morphological structures of anti-herbivory defense?
This thesis focused on the evolutionary-ecology of trichomes in the tribe Bignonieae (Bignoniaceae), and in the potential defensive role of these structures against herbivores. More specifically, we characterized four trichome morphotypes found in vegetative plant parts of representatives of the Bignonieae, as well as studied the macro-evolutionary patterns
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/11/2011
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22. Intercorrências e estressores psicológicos na gestação de mães de indivíduos com transtornos do espectro do autismo
Pregnancy complications and psychological stress during gestational period are risk factors to the development of children with a variety of disorders, such as Autism Related Disorders (TEA). To evaluate this situation, we studied a sample of 60 mothers, among 60 individuals with TEA. The patients are from two specialized institutions in attending people wit
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/08/2011
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23. TURBULENT EXCHANGE OF SCALARS ABOVE AND WITHIN AN ARAUCARIA FOREST IN SOUTHERN BRAZIL / TROCAS TURBULENTAS DE ESCALARES ACIMA E NO INTERIOR DE UMA FLORESTA DE ARAUCÁRIA NO SUL DO BRASIL
Turbulent exchange of scalars is analyzed for a year of turbulence data, above and within an Araucaria Forest in southern Brazil. Sensible and latent heat fluxes, as well as CO2 fluxes are calculated by the eddy covariance method and analyzed in terms of the seasonal variation of their daily cycles. Diurnal and nocturnal vertical velocity spectra, sensible a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/07/2011
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24. Efeito de diferentes estratégias de codificação dos processadores de fala na voz de crianças usuárias de implante coclear / Effect of different speech processors coding strategies on the voice of children with cochlear implants
The cochlear implant has the pupose of providing hearing perception for individuals with severe and profound hearing loss. The implants use result on optimization of development of language, speech and voice production of its users. This device is one of the most promissing and effective technologies to remedy hearing loss, and its results depend highly on t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/06/2011