Quotients
Mostrando 1-12 de 52 artigos, teses e dissertações.
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1. Effects of different legume green manures on tropical soil microbiology after corn harvest
ABSTRACT Legume green manure is a popular practice for sustainable agriculture in tropical environments. The use of grain, forage and purely green manure legumes in a subhumid tropical area in Northeast Brazil was investigated to determine the total C and N contents and estimate C-microbial biomass, soil basal respiration, microbial and metabolic quotients,
Bragantia. Publicado em: 2020-12
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2. Occurrence of Pesticides Associated to Atmospheric Aerosols: Hazard and Cancer Risk Assessments
Since the 1950s, pesticides have been used in agriculture. The increase in their consumption has been observed in recent years. In this work, it was determined the concentration of pesticides in the atmosphere of São Paulo and Piracicaba cities (sugarcane plantation site) and the hazard quotients and cancer risk caused by inhalation of these compounds were
J. Braz. Chem. Soc.. Publicado em: 2020-06
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3. Comparative study between school and motor performance in children aged 6 to 11 years according to teachers’ perceptions
Resumo Introdução: No período de escolarização ocorre aprimoramento e ampliação das habilidades motoras, com possível relação entre desenvolvimento motor e aprendizagem escolar. Objetivo: Avaliar e comparar habilidades motoras de crianças com baixo e alto desempenho escolar, segundo percepção do professor em sala de aula. Método: Particip
Fisioter. mov.. Publicado em: 15/07/2019
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4. Biochemical and Biological Properties of Soil from Murundus Wetlands Converted into Agricultural Systems
ABSTRACT The implementation of conservationist systems that improve soil properties and reduce the impacts of the conversion of native areas is fundamental for feasible agricultural exploitation. This study aimed to evaluate the impact on soil biological properties caused by the conversion of murundus fields into agricultural systems and verify the ability o
Rev. Bras. Ciênc. Solo. Publicado em: 19/06/2019
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5. Quantity and quality of soil organic matter as a sustainability index under different land uses in Eastern Amazon
ABSTRACT: Soil organic matter (SOM), which influences chemical, physical and biological soil attributes, is the main form of C found in the soil which can also be used as a soil sustainability index. The aim of this study was to use the quantity and quality of SOM as an indicator to determine the sustainability of different land uses (native vegetation, seco
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-05
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6. Microbiological Attributes of Soil Under Spontaneous Restoration
ABSTRACT The aim of this study was to evaluate the effect of vegetation on soil microbial activity during spontaneous restoration and the effect of remaining eucalypts on the restoration stage of reserve ranges installed in eucalypt plantations. The studied areas were in the following stages: initial restoration stage with and without remaining eucalypts; ad
Floresta Ambient.. Publicado em: 27/04/2017
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7. Soil attributes under different crop management systems in an Amazon Oxisols
AbstractSoil biological properties have a high potential for use in assessing the impacts of crop systems. The objective of this study is to evaluate the effects of cropping systems on the biological attributes of an oxisol in the Amazonian state of Pará. The treatments consisted of approximately 20-year-old secondary vegetation, recovered pasture, no-tilla
Bragantia. Publicado em: 11/08/2015
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8. Is it possible to identify four small Neotropical felids (Carnivora: Felidae) based on hair microstructure?
The microscopic characters of the hair can be used to indirectly identify species that are either uncommon or are difficult to see, for instance small Neotropical felids of the southern Brazilian Atlantic Forests. This widely used technique, which has not yet been standardized, involves the identification of hairs collected from feces. We tested the hypothes
Zoologia (Curitiba). Publicado em: 2015-02
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9. High-speed kymography identifies the immediate effects of voiced vibration in healthy vocal folds
INTRODUCTION: The effects of voiced vibration technique can be assessed by laryngeal imaging. Kymographic images derived from high-speed videoendoscopy allow actual visualization of vocal folds vibration. PURPOSE: The aim of this study is to identify the immediate effects of the voiced vibration technique in healthy vocal folds using high-speed digital laryn
Int. Arch. Otorhinolaryngol.. Publicado em: 2013-03
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10. Apolipoprotein E4 influences growth and cognitive responses to micronutrient supplementation in shantytown children from northeast Brazil
OBJECTIVE: Apolipoprotein E4 may benefit children during early periods of life when the body is challenged by infection and nutritional decline. We examined whether apolipoprotein E4 affects intestinal barrier function, improving short-term growth and long-term cognitive outcomes in Brazilian shantytown children. METHODS: A total of 213 Brazilian shantytown
Clinics. Publicado em: 2012
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11. Localização de T-KIBS no Brasil: um estudo das aglomerações e seus fatores condicionantes
This masters degree dissertation was aimed at the study of Knowledge Intensive Business Services (KIBS) in Brazil, in particular, Technology KIBS (T-KIBS) and the identification of the concentration of these activities and its factors. By means of identifying CNAE groups of activities categorized as T-KIBS according to the international literature and with t
Publicado em: 2009
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12. Sobre a existencia de bases SAGBI finitas para o nucleo de k-derivações em k[x1,...,xn] / About the existence of finite SAGBI bases for the kernel of a k-derivation in k[x1,...,xn]
The general objective of this work is to understand the SAGBI bases theory from a structural point of view, seeking criterias for its existence and results that prove its effitiency in the study of certain subalgebras of k[x], as well as to study the general theory of derivations over polynomial rings, its localizations and quotients, in order to explo
Publicado em: 2008