Seasonal Adjustment
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Thermoregulation in the Andean lizard Anolis heterodermus (Squamata: Dactyloidae) at high elevation in the Eastern Cordillera of Colombia.
ABSTRACT Low thermal quality environments, such extreme latitudes or high elevation regions, are highly expensive for reptiles in terms of thermoregulation. Thus, physiological adaptations or behavioral adjustments to live in these habitats have evolved in some species. Anolis heterodermus (Duméril, 1851) is an anole lizard that lives at high elevations in
Iheringia, Sér. Zool.. Publicado em: 08/05/2017
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2. Incidence of snakebites from 2007 to 2014 in the State of São Paulo, Southeast Brazil, using a Bayesian time series model
Abstract: INTRODUCTION: The monthly incidence of snakebites from 2007 to 2014 in the State of São Paulo, Brazil, was assessed. METHODS: A statistical model based on the discrete double Poisson distribution was proposed, including pairs of sine and cosine functions of time to account for seasonality and autoregressive terms. RESULTS: The analysis indicate
Rev. Soc. Bras. Med. Trop.. Publicado em: 2016-08
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3. Ecophysiological responses to drought and salinity in the cosmopolitan invader Nicotiana glauca
Nicotiana glauca, a shrub native to southern South America, is widely distributed in the Americas, from Patagonia to the USA, from zero up to 3,700 m; it rapidly invades disturbed environments. In Venezuela, it has been reported from zero up to 2,000 m growing in contrasting conditions of relative humidity, temperature, rainfall, and salinity. In order to ga
Braz. J. Plant Physiol.. Publicado em: 2012-09
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4. Albedo em cerrado sensu stricto como resposta à variação climática e biológica: conexões com índice de vegetação, estoques de carbono e fluxos de CO2 / Albedo in cerrado sensu stricto as response to climatic and bilogical variation: connections with vegetation index, carbon stocks and fluxes of CO2
In this work we analyze the climatic variability influence over a woodland savannah ecosystem at Gleba Pe de Gigante, Santa Rita do Passa Quatro, SP, during the 2001-2007 period. The data collected for this analysis are from a micrometeorological tower located at Vassununga State Park, which was installed under the thematic project called Biosphere- Atmosphe
Publicado em: 2009
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5. OPTIMAL FILTERS THAT PRESERVE EVERY TREND ORDER / FILTROS ÓTIMOS QUE CONSERVAM QUALQUER ORDEM DE TENDÊNCIA
The thesis Filtros ótimos que conservam qualquer ordem de tendência (Optimal Filters that Preserve Trend of Any Order), investigates the principles of the Henderson symmetric filters, which are inserted in the context of seasonal adjustment, specifically in the methods of the X11 family; it also develops optimal filters, based on techniques in the Frequenc
Publicado em: 2008
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6. Evapotranspiration of lettuce inside or outside a greenhouse / Evapotranspiração da cultura da alface dentro e fora de ambiente protegido
This work was carried out at the Irrigation and Drainage Experimental Station of the Federal University of Viçosa, in Viçosa, Minas Gerais state, Brazil, from December 2007 to January 2008, cultivating Lettuce (Lactuca sativa L.) cultivar Regina, under two experimental conditions as: inside and outside a greenhouse. We aimed to a) determine the crop evapot
Publicado em: 2008
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7. Sazonalidade da RaÃÃo Essencial MÃnima nas Grandes RegiÃes Metropolitanas Brasileiras / Seasonality analysis of the minimal essential ration in the main brazilian metropolitan regions.
A questÃo da sazonalidade nas sÃries de preÃos alimentÃcios ocupa papel central na orientaÃÃo dos produtores agrÃcolas e dos comerciantes, bem como na discussÃo e formaÃÃo de polÃticas agrÃcolas do governo. Considerando ainda que os gastos das famÃlias brasileiras com alimentaÃÃo, nos Ãltimos anos, tÃm sido afetados por mudanÃas estruturais
Publicado em: 2007
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8. Validação do modelo WEPP na predição de erosão hídrica para condição edafoclimática da região de Viçosa-MG / WEPP model validation in the prediction of water erosion for edaphic climatic conditions in the region of Viçosa-MG
The sensitivity analysis of the WEPP model demonstrated that for the Brazilian edaphic climatic conditions the most critical parameters from the soil are: the erodibility interril (Ki), the erodibility in rill (Kr), the critical shear strength (τc) and the effective hydraulic conductivity (Ke). Through is of fundamental importance the evaluation of the
Publicado em: 2007
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9. Influence of drainage system efficiency in the asphalt pavement performance. / Influência da drenagem subsuperficial no desempenho de pavimentos asfálticos.
Since the implementation of the first roads, there are indications that constructors already had knowledge concerning drainage influence in the pavement performance. Many countries, where highway administration costs are criteriously available along pavement lifetime, have been developing researches regarding considerations about harmful effects from excessi
Publicado em: 2003
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10. Estudo das relações entre os elos da cadeia láctea do Rio Grande do Sul e sua competitividade
The new economic context, characterized by the market opening and the stabilization of the economy, brought several challenges for the dairy chain, what has been pressing its links to go through an adjustment process, in order to overcome its main problems, of structural nature or of technological base. In this sense, the present study aimed to trace an over
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 1998
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11. ANALYSIS OF THE CYCLICAL AND SEASONAL COMPONENTS IN STRUCTURAL MODELS / ANÁLISE DAS COMPONENTES CÍCLICA E SAZONAL EM MODELOS ESTRUTURAIS
The thesis has two main objectives. The first one is to investigate the effects of the application of the Hodrick- Prescott filter (HP) in detecting macro-economic cycles in the brazilian GDP series, from 1900 to 1992, We compare the results from the HP method to those of Cribari and the structural approach of Harvey. We conclude that the HP series may gener
Publicado em: 1995
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12. Freezing Tolerance of Citrus, Spinach, and Petunia Leaf Tissue 1: Osmotic Adjustment and Sensitivity to Freeze Induced Cellular Dehydration
Seasonal variations in freezing tolerance, water content, water and osmotic potential, and levels of soluble sugars of leaves of field-grown Valencia orange (Citrus sinensis) trees were studied to determine the ability of citrus trees to cold acclimate under natural conditions. Controlled environmental studies of young potted citrus trees, spinach (Spinacia