Buscar
Itens para a visualização no momento 1061-1070 of 1406
Síntese de 2-amino(alcoxi)-5-trifluoracetil-1,2,3,4-tetraidropiridinas e oxazolo[3,2-a]piridinas
(Universidade Federal de Santa Maria, 2006-07-03)
The present work describes the synthesis of novel 2-alkoxy-5-trifluoroacetyl-1,2,3,4-tetrahydropyridines, 2-amino-5-trifluoroacetyl-1,2,3,4-tetrahydropyridines and oxazolo[3,2-a]pyridines from the cyclocondensation reactions ...
Determinação de cádmio e chumbo em sangue por espectrometria de absorção atômica com tubo aquecido na chama após combustão iniciada por microondas
(Universidade Federal de Santa Maria, 2007-07-25)
In this work a procedure for Cd and Pb determination by solid sampling flame furnace atomic absorption spectrometry after microwave induced combustion (MIC-FF-AAS) is used. Human blood samples were priory lyophilized, ...
Técnicas de geoprocessamento na determinação do índice de perigo de incêndios
(Universidade Federal de Santa Maria, 2006-04-13)
The forest fire is considered an environmental impact, because provokes physic, biotic and anthropic environment characteristics changes or modifications. Brasil
doesn't have an adequate fire politic support. It's necessary ...
Troca estratosfera-troposfera e sua influência no conteúdo de ozônio sobre a região central do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2016-03-04)
It was identified Stratosphere-Troposphere Exchange (STE) events on Southern South America
and their effects in the Ozone Total Column (OTC) above Central Region of Rio Grande
do Sul (CRRS), Brazil, in the period between ...
Modelagem lógica de senescência celular humana
(Universidade Federal de Santa Maria, 2012-12-12)
After the progressive telomere shortening in successive cell divisions, normal
somatic cells undergo a growth arrest called cellular senescence that occurs due to
incomplete DNA replication. Senescence can also be activated ...
Avaliação da capacidade antirradicalar do neurosporeno: um estudo teórico
(Universidade Federal de Santa Maria, 2016-06-23)
Carotenoids are natural pigments known for being vitamin A precursors and for their important biological activities, such as antioxidant activity. In this study, the free radical scavenger capacity of neurosporene was ...
Efeitos de flutuações quânticas em um modelo vidro de spin com cluster
(Universidade Federal de Santa Maria, 2019-05-29)
In this work we study the effects of quantum fluctuations in a disordered magnetic system.
We consider a cluster-spin Ising model with antiferromagnetic short range interactions (J0)
and disordered long range interactions ...
Estimativa de orientação com uma bússola visual baseada em cores
(Universidade Federal de Santa Maria, 2016-12-21)
Humans and animals make use of many senses to interact with the environment around
them. Computers, in turn, interact through input and output devices such as speakers, keyboards,
and monitors, and their interactions ...
Síntese esteresseletiva de bis-calcogenetos vinílicos catalisada por FeCL3
(Universidade Federal de Santa Maria, 2012-06-29)
Não foi possível inserir o abstract.
Ambientes pré-convectivos em situações de escoamento de norte-noroeste em baixos níveis sobre o Rio Grande do Sul
(Universidade Federal de Santa Maria, 2015-03-30)
A climatological and synoptic evaluation of the atmospheric environments prone to
severe weather under N-NW low-level flow over Rio Grande do Sul (RS) State is conducted.
Atmospheric profiles from 00Z, 06Z, 12Z and 18Z ...