Ciências Exatas e da Terra: Últimas Submissões
Resultados 51-60 de 5974
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Compilation of geomorphological map for reconstructing the deglaciation of ice-free areas in the Martel intlet, King George island, Antarctica
(2013) [Artigo de periódico]We compiled a geomorphological map and a reconstruction map of glacier extension and ice-free areas in the Martel Inlet, located in King George Island, South Shetlands, Antarctica. Glacier extension data were derived from ... -
Efeitos do sistema Keller sobre o estudante
(1979) [Artigo de periódico]Em um curso de Física Geral, na UFRGS, são comparados dois grupos, em egresso do sistema de ensino tradicional e outro do sistema Keller, quando ambos são submetidos a cada um dos métodos Keller e Audiotutorial. Os sistemas ... -
Volatile profile of sparkling wines produced with the addition of mannoproteins or lees before second fermentation performed with free and immobilized yeasts
(2018) [Artigo de periódico]Heat map and hierarchical cluster analysis showed that sparkling wines produced with immobilized yeasts contained mostly higher levels of compounds that impart positive notes to wines. Fisher ratio pointed out nine volatile ... -
Method development and total uncertainty estimation for boron, sulfur and phosphorus determination in mineral fertilizer using ICP OES
(2016) [Artigo de periódico]This study deals with B, S, and P determination in mineral fertilizer and S in commercial sulfur-formulation using inductively coupled plasma optical emission spectrometry. According to multivariate optimization using a ... -
Computational study of electronic effects from β-substituents on the tautomerism of naphthazarin derivatives
(2017) [Artigo de periódico]In this work, semi-empirical AM1 and DFT B3LYP/6-31G** calculations were applied in the study of the interconversion among tautomers of several naphthazarin and 5-amino-8-hydroxy-1,4-naphthoquinone β-substituted derivatives ... -
Relações não lineares na curva de Phillips : uma abordagem semi-paramétrica
(2015) [Artigo de periódico]A relação entre inflação e atividade econômica é um dos principais interesses dos macroeconomistas. Geralmente, o trade-off entre inflação e produto é considerado linear. Mas isso é correto? Caso não seja, qual é a forma ... -
Principal component analysis of commercial tannin extracts using digital images on mobile devices
(2016) [Artigo de periódico]Tannins from trees are an abundant renewable resource. The use of tannins is safe for the environment and human health, making it possible to develop environmentally friendly products, such as adhesives, flocculant agents ... -
Tianeptine esters derivatives : a study of protein-drug interaction performed by fluorescence quenching and molecular docking
(2019) [Artigo de periódico]The nature of binding between bovine serum albumin (BSA) and the antidepressant tianeptine and a new series of esters derivatives were studied in this paper. The interactions with BSA were investigated by UV-Vis and ... -
Homenagem póstuma ao professor Raymond Pébayle
(2010) [Artigo de periódico] -
Dinâmicas sócio-espaciais produtivas e a formação do território do morango no Vale do Caí - Brasil
(2011) [Artigo de periódico]