Uses Of The Variable
Mostrando 1-12 de 137 artigos, teses e dissertações.
-
1. Double or triple-expressor lymphomas: prognostic impact of immunohistochemistry in patients with diffuse large B-cell lymphoma
Mid-Infrared absorption spectroscopy associate with the Partial Least Squares regression is the official method to monitor Brazilian commercial diesel quality. This method, however, uses solvents and a large number of samples for the construction of the calibration curves, which generates waste and increases the time needed for the analysis. In order to deve
Hematol., Transfus. Cell Ther.. Publicado em: 2020-06
-
2. QUANTIFICAÇÃO DO TEOR DE BIODIESEL DE CRAMBE EM MISTURAS COM DIESEL UTILIZANDO ESPECTROSCOPIA MIR E SELEÇÃO DE VARIÁVEIS
Mid-Infrared absorption spectroscopy associate with the Partial Least Squares regression is the official method to monitor Brazilian commercial diesel quality. This method, however, uses solvents and a large number of samples for the construction of the calibration curves, which generates waste and increases the time needed for the analysis. In order to deve
Quím. Nova. Publicado em: 2020-06
-
3. SENSITIVITY OF EVAPOTRANSPIRATION ESTIMATED BY ORBITAL IMAGES UNDER INFLUENCE OF SURFACE TEMPERATURE
ABSTRACT Surface temperature (Ts) is a determining factor to obtain energy balance parameters, being relevant to understand the influence of this variable on the estimation of evapotranspiration. Thus, the objective of this study was to simulate errors in Ts estimation to verify the consequences of actual evapotranspiration (ETa) estimated by the SAFER (Simp
Eng. Agríc.. Publicado em: 09/09/2019
-
4. IDENTIFICATION OF MAIZE LODGING: A CASE STUDY USING A REMOTELY PILOTED AIRCRAFT SYSTEM
ABSTRACT A common agricultural problem in many regions of Brazil is maize lodging, as a consequence of strong winds and rain which impacts on crop growth and yield. However, collecting data using ground-based, manual field measurement methods is inefficient. An emerging tool is the Remotely Piloted Aircraft System (RPAS), capable of delivering spatial data w
Eng. Agríc.. Publicado em: 09/09/2019
-
5. ESTIMATING VEGETATION VOLUME OF COFFEE CROPS USING IMAGES FROM UNMANNED AERIAL VEHICLES
ABSTRACT Tree crops, such as Arabica coffee (Coffea arabica L.), present enormous technical challenges in terms of pesticide application. The correct deposition and distribution of the active ingredient throughout the aerial part of these plants depends on knowledge of the canopy volume, but manually determining this volume is time consuming and imprecise. T
Eng. Agríc.. Publicado em: 09/09/2019
-
6. Selection of variables in the definition of a water quality index for the Brazilian Federal District
Resumo Os Índices de Qualidade da Água - IQAs, baseiam-se em um pequeno número de variáveis que estabelecem categorias para a qualidade da água. Esse método apresenta alguns problemas quanto às avaliações, pois os IQAs não consideram os usos múltiplos da água, bem como as diferenças nas características regionais. O presente estudo tem como obje
Rev. Ambient. Água. Publicado em: 22/07/2019
-
7. COMPROMISSOS MÚTUOS NAS TRANSAÇÕES DE HORTÍCOLAS NA SERRA FLUMINENSE
RESUMO O objetivo deste artigo é identificar os fatores que explicam o estabelecimento de compromissos mútuos entre os agricultores familiares e compradores de produtos hortícolas na Região Serrana do Rio de Janeiro. Para tanto, analisa 567 transações referentes a uma amostra de agricultores familiares baseados em sete municípios. A Economia dos Custo
Rev. adm. empres.. Publicado em: 10/07/2019
-
8. Pharmacognostical study of Desmodium caudatum
Abstract: Desmodium caudatum (Thunb.) DC, is an ever-green plant widely used in the central and southern China with great economic value for their medical values on fever, dysentery, gastroenteritis, rectal prolapse, snake bites, mastitis, and boils carbuncle. Despite its extensive uses as a traditional Chinese medicine, no systematic research on the identif
An. Acad. Bras. Ciênc.. Publicado em: 19/06/2019
-
9. Physical, Chemical, and Microbiological Properties of Soil under Different Plant Covers in the Seridó Desertification Region in the Brazilian Semiarid
ABSTRACT The Seridó Desertification Region is a result of inadequate management of the native Caatinga vegetation, which generated degraded areas with little or no capacity for plant production. The area has experienced a succession of different land uses, but little is known about the impact of these changes. The present study tested the hypothesis that th
Rev. Bras. Ciênc. Solo. Publicado em: 28/03/2019
-
10. Ultrasonic Extracts of Morinda citrifolia L.: Characterization of Volatile Compounds by Gas Chromatography-Mass Spectrometry
Morinda citrifolia (noni) is found in the Atlantic and Amazonian Forest in Brazil and with recognized uses in folk medicine. However, few studies exist in its chemical characterization. The present work aims to investigate the efficiency of the sonication for extracting bioactive compounds from fruits and leaves of noni, using an experimental design of 23, w
J. Braz. Chem. Soc.. Publicado em: 2019-01
-
11. Lipoxygenase inhibitors flavonoids from Cyperus rotundus aerial parts
ABSTRACT Cyperus rotundus L. (Suada, Sueda, family: Cyperaceae) is vastly spread in several world's subtropical and tropical regions. It had variable traditional uses and bioactivities. A new flavonol derivative: cyperaflavoside (myricetin 3,3',5'-trimethyl ether 7-O-β-D-glucopyranoside) and five flavonoids: vitexin, orientin, cinaroside, quercetin 3-O-β-D
Rev. bras. farmacogn.. Publicado em: 2018-06
-
12. Water Quality in Micro-watersheds Under Different Land Uses in the Municipality of Alegre, Espírito Santo
ABSTRACT The present study aimed to evaluate water quality attributes in micro-watersheds under different soil uses. Therefore, four micro-watersheds under the following vegetation cover were selected: pasture, primary forest reforestation, forest, and coffee plantation. Surface and underground water sampling was performed bimonthly between February and Dec
Floresta Ambient.. Publicado em: 28/05/2018