Institution
Universidade Federal de Santa Maria
Education•Santa Maria, Brazil•
About: Universidade Federal de Santa Maria is a education organization based out in Santa Maria, Brazil. It is known for research contribution in the topics: Population & Context (language use). The organization has 21178 authors who have published 35632 publications receiving 371665 citations.
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TL;DR: It appears that the antiulcer activity of diphenyl diselenide is the result of antisecretory activity, via inhibition of gastric K(+)-ATPase activity.
87 citations
TL;DR: In this article, the structural properties of the powders were investigated by X-ray diffraction (XRD) and N 2 adsorption/desorption isotherms (BET) and its photocatalytic activity was comparatively evaluated in the degradation of the textile dye, Reactive Red 141, in aqueous solution under sunlight.
87 citations
TL;DR: This review concisely presents the main processes for the production of oligosaccharides by depolymerisation of polysaccharides (enzymatic, acid, and physical hydrolysis), taking into account their advantages, disadvantages, and perspectives.
Abstract: Summary
Oligosaccharides are carbohydrates with a low molecular weight, which, when nondigestible, can produce bifidogenic activity and several other effects to human health. Oligosaccharides can be found naturally in foods or are produced by the synthesis from disaccharide substrates or by the hydrolysis of polysaccharides. Although it has yet to be improved, the hydrolysis of polysaccharides is the best choice for oligosaccharide production on a large scale, due to its reproducibility and smaller cost. This review concisely presents the main processes for the production of oligosaccharides by depolymerisation of polysaccharides (enzymatic, acid, and physical hydrolysis), taking into account their advantages, disadvantages, and perspectives.
87 citations
TL;DR: The growth of S. brasiliensis was negatively affected by frequent handling stress, whereas stocking density only affected growth when fish were not handled, thus overcoming the effect caused by high densities.
87 citations
TL;DR: In this paper, the authors evaluated the mobility of copper (Cu) and zinc (Zn) in the profile and distribution of sandy soil fractions from vineyards and found that 75% of the total Cu was extracted by EDTA, while only 30% of Zn was extracted using EDTA.
Abstract: The purpose of this study was to evaluate the mobility of copper (Cu) and zinc (Zn) in the profile and distribution of sandy soil fractions from vineyards. Soil samples were collected from two vineyards of different ages (14 and 30 years) and a natural field area in the south of Brazil. The chemical characteristics, Cu levels and Zn levels, were analyzed in the soils by extraction with ethylenediamine tetraacetic acid (EDTA) using the 3050B method of USEPA and by chemical fractionation. Cu and Zn were accumulated in the vineyard soils, especially in the uppermost soil layers and in the soil from the oldest vineyard. Approximately, 75% of the total Cu was extracted by EDTA, but only 30% of the total Zn was extracted by EDTA. Most of the Cu, especially in the oldest vineyard, was distributed in the mineral-associated fraction, which is characterized by low geochemical mobility, but another important part of the Cu was distributed in the soil organic matter. Most of the Zn in the soil was distributed in the ...
87 citations
Authors
Showing all 21330 results
| Name | H-index | Papers | Citations |
|---|---|---|---|
| João Rocha | 93 | 1521 | 49472 |
| Jose Rodriguez | 93 | 803 | 58176 |
| Christian C. Abnet | 86 | 413 | 29165 |
| Thaisa Storchi-Bergmann | 70 | 318 | 22817 |
| Ali Emadi | 69 | 660 | 24174 |
| Luis S. Pereira | 68 | 317 | 35582 |
| Diogo O. Souza | 68 | 534 | 17793 |
| Adair R.S. Santos | 63 | 329 | 14529 |
| Ahmad Awada | 61 | 547 | 16109 |
| Farin Kamangar | 61 | 237 | 16554 |
| Stefan Laufer | 59 | 481 | 11158 |
| Cristina W. Nogueira | 59 | 503 | 16655 |
| Ana Lúcia S. Rodrigues | 58 | 244 | 10187 |
| Julia F. Ridpath | 57 | 229 | 9543 |
| Ludger A. Wessjohann | 53 | 513 | 11405 |