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Itens para a visualização no momento 1811-1820 of 1942
Balanço de água no ciclo da cultura de soja: representação no modelo de vegetação dinâmica Agro-IBIS
(Universidade Federal de Santa Maria, 2012-07-17)
Exchanges of water in the soil-plant-atmosphere are controlled by physical-hydric soils, which in turn are highly variable in space and very sensitive to the use and soil management, especially in an agroecosystem. ...
Determinação de flúor em sementes de plantas leguminosas e oleaginosas após combustão iniciada por micro-ondas em frascos descartáveis
(Universidade Federal de Santa Maria, 2023-03-10)
In this work, the use of microwave-induced combustion in disposable vessels (MIC-DV) for fluoride determination in leguminous seeds and oilseeds (almond, peanut, hazelnut, Brazil nut, pecan nut, pea, pinto bean, chickpea, ...
Metodologia para quantificação de potássio em folhas de arroz, soja, bananeira, parreira e limão utilizando sensor portátil
(Universidade Federal de Santa Maria, 2023-03-14)
Analytical methodology was developed for the extraction and quantification of
potassium (K) in leaves and determination by a portable potassium ion-selective
electrode. To ensure the portability of the analysis, a coffee ...
Síntese de 2-(1,4,5,6-tetraidropiridin-3-il)-2-oxoacetato de etila 1,6-dissubstituídas via mecanismo ANRORC
(Universidade Federal de Santa Maria, 2013-03-18)
This paper presents a synthetic strategy for the preparation of two series of novel 1,6-disubstituted Ethyl 2-(1,4,5,6-tetrahydropyridin-3-yl)-2-oxoacetate from the reaction of the cyclic enone ethyl 2-(6-ethoxy-5 ...
Soluções não clássicas para problemas da OBMEP
(Universidade Federal de Santa Maria, 2013-04-15)
Since 2005 the Brazilian Mathematical Olympiad of Public Schools (OBMEP) is
present in many schools involving students and teachers by presenting different problems
when compared to traditional models of exercises presented ...
Interações intermoleculares e topologia molecular no empacotamento cristalino de 3-amino-4-halo-5-metilisoxazóis
(Universidade Federal de Santa Maria, 2013-02-26)
In this work is described the intermolecular interactions and the molecular
topology present in the crystal packing of 3-amine-4-halo-5-methylisoxazoles. First
was described the obtention of the 3-amine-4-halo-5-methylisoxazoles ...
Análise das técnicas de microarranjos e RNAseq através da ontologia ontocancro
(Universidade Federal de Santa Maria, 2013-09-11)
The research on molecular interactions which cause genetic diseases has
been the focus of many studies in recent years. With the inclusion of informatics in
biological research, there was a great advance in the discovery ...
Determinação de disruptores endócrinos em filé de peixe utilizando QuEChERS modificado e GC-(TQ)MS/MS
(Universidade Federal de Santa Maria, 2012-02-27)
Endocrine Disrupter Compounds (EDCs) like pesticides, alkylphenols and hormones
among other classes of compounds are responsible for alterations in the endocrine
system functions. Endocrine disruption occurs when EDCs ...
Cálculo no ensino médio: uma abordagem possível e necessária com auxílio do Software GeoGebra
(Universidade Federal de Santa Maria, 2013-03-15)
This piece of work has as its main objective, verifying the possibility of insertion in high-school, of the intuitive ideas of Differential and Integral Calculus applied to the study of quadratic functions. Intuitive ideas ...
Propriedades eletrônicas e estruturais de nanoestruturas de carbono funcionalizadas para aplicação em sensores
(Universidade Federal de Santa Maria, 2012-01-12)
This work presents a study of properties of functionalized carbon nanotubes
and graphene nanoribbons. We studied, by first principles simulations, the structural
and electronic properties of functionalized nanotubes and ...