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Itens para a visualização no momento 51-60 of 104
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 ...
Estudo da reatividade de Fenilcalcogenolatos de Índio(III)
(Universidade Federal de Santa Maria, 2011-03-02)
Indium(III) benzenechalcogenolates (chalcogen = sulfur, selenium) prepared from elemental indium and diphenyl dichalcogenide provide an alternative synthetic route to produce carbon-chalcogen bonds. These compounds promote ...
Efeito dos espectros de gota associados a diferentes arquiteturas de cultivares de soja no controle da ferrugem
(Universidade Federal de Santa Maria, 2011-07-22)
The efficiency of a fungicide is the result of the combination of a variety of factors including: time of application, environmental conditions, physiological condition of plant and application technology used. Already to ...
Estudo da aplicação de brometo de índio(I) em reações para formação de ligações carbono-carbono
(Universidade Federal de Santa Maria, 2011-03-01)
This PhD thesis describes our results on the application of indium(I) bromide in carbon-carbon bond forming reactions. Indium enolates, generated in situ from the reaction between indium(I) bromide and α,α-dichloroketones, ...
Transpiração e crescimento foliar de clones de batata e de mandioca em resposta à fração de água transpirável no solo
(Universidade Federal de Santa Maria, 2011-02-18)
The objective of this study was to determine the response of plant transpiration and leaf growth to the fraction of transpirable soil water (FTSW) in potato and cassava clones. Three experiments were conducted with potato, ...
Ciclagem biogeoquímica dos nutrientes em uma plantação de Pinus taeda L. no Nordeste Argentino
(Universidade Federal de Santa Maria, 2011-03-18)
The objectives of this study were to characterize water and nutrient fluxes in a Pinus taeda plantation at 12 year-old located in the northeast of Argentina. The atmospheric deposition and rainfall partitioning into ...
Comportamento ingestivo e produtividade de vacas das raças Jersey e Holandesa em pastagens de azevém anual
(Universidade Federal de Santa Maria, 2011-12-02)
A trial was conducted to evaluate the ingestive behavior, pastures dynamics and productivity
of cows of the Jersey and Holstein s breeds grazing annual-ryegrass (Lolium multiflorum) in
northwestern Rio Grande do Sul. ...
Avaliação do disseleneto de difenila e análogos como substratos da tioredoxina redutase
(Universidade Federal de Santa Maria, 2011-07-15)
Since the successful use of the organoselenium compound ebselen in clinical trials for the treatment of neuropathological conditions associated with oxidative stress, there have been concerted efforts geared towards ...
Atividade da adenosina desaminase, concentração de nucleotídeos e nucleosídeo de adenina em ratos infectados com Trypanosoma evansi
(Universidade Federal de Santa Maria, 2011-12-09)
The purinergic system is known to be an important signaling pathway in different tissues.
Among the components of this system have adenosine, a modulator of central nervous,
circulatory and immune systems. The concentration ...
Atividade anestésica e sedativa de produtos naturais no transporte de jundiá (Rhamdia quelen)
(Universidade Federal de Santa Maria, 2011-12-14)
The transport of live fish is one of the main activities developed in fish farms, causing
many physiological, biochemical, and behavioral alterations that can be impairment to these
animais, contributed to a reduction ...