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Atributos da arquitetura radicular como indicadores na seleção de plantas de trigo submetidas à deficiência de fósforo e toxidez por alumínio
(Universidade Federal de Santa Maria, 2017)
Phosphorus (P) deficiency and aluminum (Al3+) toxicity are two of the main constraints
on achieving high crop yields and, often, those conditions coexist in soils. The selection of more
adapted materials through easily ...
Emissões de dióxido de carbono durante a implantação de culturas em dois sistemas de preparo em latossolo vermelho do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2011-12-19)
In farming systems with annual crops, the crop establishment period is characterized by intense soil disturbance in conventional tillage (CT) or disturbance only in the sowing line, in case of no-tillage (NT). The soil ...
Emprego da parametrização de Heisenberg e do método de Adomian no decaimento da Camada Limite Convectiva
(Universidade Federal de Santa Maria, 2009-08-31)
In this paper we present a spectral model to describe the decay of turbulent kinetic energy in the Convective Boundary Layer (CLC) of the earth s surface, where the physical processes that occur generate turbulence of ...
Emprego de um comutador eletrônico de taps para regulação de tensão em redes elétricas a partir do modelo de carga
(Universidade Federal de Santa Maria, 2018-08-31)
This doctoral thesis proposes a method for regulating the secondary voltage of distribution systems
based on the identification of ZIP models of the load (constant impedance, constant current and
constant power) at the ...
"Enaminonas: síntese e aplicação em reações de cicloisomerização e de acoplamento"
(Universidade Federal de Santa Maria, 2009-08-12)
This work describes the synthesis of a series of twenty 4-[alkyl (aryl) (2-propinyl amino)-3-alken-2-ones], [R2C(O)CH=C(R1)N(R)(CH2C≡CH), where R2 = CF3, CCl3, CO2Et; R1 = Me, Et, Pr e R= Pr, Ph, Bn, 4-MeC6H4] obtained ...
Caracterização de extratos de Senecio brasiliensis e Solanum viarum obtidos por diferentes métodos extrativos com aplicabilidade na agricultura
(Universidade Federal de Santa Maria, 2021-08-06)
The present work aimed to investigate the potential of plants used empirically in agriculture, as well as evaluate different extractive methods, carry out the characterization of the obtained extracts and analyze their ...
Conservação de crustáceos límnicos: efeito da temperatura e pesticidas no metabolismo oxidativo de Aegla longirostri, in situ e ex-situ
(Universidade Federal de Santa Maria, 2021-08-31)
Freshwater ecosystems, especially low-order streams, are constantly threatened by the advance of agricultural activities that end up contaminating these places with pesticides and degrading the surrounding vegetation, which ...
Envolvimento do receptor de potencial transitório anquirina 1 e efeito farmacológico da diosmetina na queimadura de pele induzida pela radiação UVB em camundongos
(Universidade Federal de Santa Maria, 2021-05-11)
Excessive exposure to type B ultraviolet radiation (UVB) can lead to several changes to the skin resulting from the oxidative and inflammatory processes installed through the neuronal and non-neuronal receptors activation. ...
Fenótipos relacionados à dor em peixe-zebra: uma caracterização neurocomportamental utilizando o modelo de dor visceral induzida pelo ácido acético
(Universidade Federal de Santa Maria, 2021-08-26)
The zebrafish (Danio rerio) is a small freshwater teleost belonging to the Cyprinidae family, which has been studied in different scientific areas. This species has evolutionarily conserved genes and a relatively complex ...
Estudo da disfunção mitocondrial em modelos de doença de Parkinson in vitro e in vivo e perspectivas terapêuticas
(Universidade Federal de Santa Maria, 2021-10-01)
Parkinson disease (PD) is a neurodegenerative disease which symptoms are consequence of progressive neuron lost, especially dopaminergic neurons. Other feature related to PD is mitochondrial dysfunction which could target ...