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Itens para a visualização no momento 31-40 of 96
Avaliação de metaloestrógenos em cabelo de mulheres com câncer de mama por LA-ICP-MS
(Universidade Federal de Santa Maria, 2021-05-07)
In this work, the relationship of metalloestrogens (Al, Sb, As, Ba, Cd, Cr, Co, Cu, Pb, Hg, Ni, Se, Sn, V, and Zn) with breast cancer in women with age around 59 years. Laser ablation coupled to inductively coupled plasma ...
1,2,3-triazolil-1,2,4-oxadiazóis derivados de N-óxidos N-heterocíclicos benzofundidos: síntese, caracterização físico-química, reatividade e estudo computacional
(Universidade Federal de Santa Maria, 2021-12-18)
Taking into account potential bioactive, photophysical and redox-active properties of N-heterocycles and of their N-oxides, a 40 inedit benzofuroxan- or 2,2-dimethyl-2H-benzimidazole-1,3-dioxide- bound 1,2,3-triazolyl-1, ...
Desenvolvimento de método utilizando a microextração líquido-líquido dispersiva em fase reversa para determinação de As, Cd, Hg, Pb, Co, Ni e V em excipientes farmacêuticos oleosos
(Universidade Federal de Santa Maria, 2021-03-05)
In this study, an extraction method using oily pharmaceutical excipients was developed for further determination of elemental impurity from classes 1(As, Cd, Hg, and Pb) and 2A (Co, Ni, and V) according to ICH Q3D. The ...
Eventos de grande diminuição da coluna total de ozônio sobre o Sul do Brasil: estudo da dinâmica estratosfera-troposfera com o modelo WRF
(Universidade Federal de Santa Maria, 2021-04-23)
The increase of ultraviolet solar radiation that reaches the Earth’s surface as a consequence
of the decrease in the total ozone column has a negative impact on human health. Ozone
depletion events that affect southern ...
Sal de Bunte como precursor para a síntese de 3- organotio-benzo[b]furanos
(Universidade Federal de Santa Maria, 2021-01-28)
In this work we developed a methodology for the synthesis of 3-orgnanylthio-benzo[b]furan derivatives, aiming to elaborate a satisfactory procedure. This method is based on the application of an alternative source of ...
Avaliação da calibração em LA-ICP-MS usando hidroxiapatita para análise de polivitaminícos
(Universidade Federal de Santa Maria, 2021-02-11)
In this work, a calibration procedure was investigated to determine Mn, Sr, Cd, Ba, Li, Al, Cr, Co, Ni, Cu, Zn, Mg, Fe, Fe, and Ca in multivitamins by laser ablation combined mass spectrometry with inductively coupled ...
A cinemática e distribuição do gás molecular e ionizado na região central da galáxia Seyfert NGC1125
(Universidade Federal de Santa Maria, 2021-08-18)
We use the J and K spectroscopic observations of the inner 350 pc of the Seyfert 2 galaxy
NGC1125 to investigate the kinematic structure of the hot molecular ( 2000 K) and ionized
gas, as well as of the stars. The ...
Balanços de momentos estatísticos de segunda ordem na camada limite atmosférica diurna e noturna em função do vento
(Universidade Federal de Santa Maria, 2021-10-28)
The study presents an observational analysis of the terms in the budgets of three planetary
boundary-layer second-order statistical moments: turbulent kinetic energy (TKE), heat flux
and temperature variance. These have ...
Fluxo de metano no bioma Pampa: análises em área de arroz e de pecuária
(Universidade Federal de Santa Maria, 2021-06-01)
Methane (CH4) is approximately 28 times more efficient at absorbing radiation than carbon dioxide (CO2), potentiating global warming. In this way, the production systems that emit CH4 have special attention in studies that ...
Efeitos interfaciais na formação de domínios magnéticos e skyrmions em multicamadas com anisotropia magnética perpendicular
(Universidade Federal de Santa Maria, 2021-10-29)
Ferromagnet/heavy metal multilayers can exhibit perpendicular magnetic anisotropy (AMP),
high density of magnetic domain, and skyrmions. These structures have great potential for
applications in magnetic recording media ...