Institution
Universidade Federal de Viçosa
Education•Viçosa, Brazil•
About: Universidade Federal de Viçosa is a education organization based out in Viçosa, Brazil. It is known for research contribution in the topics: Population & Dry matter. The organization has 16012 authors who have published 26711 publications receiving 353416 citations.
Topics: Population, Dry matter, Germination, Species richness, Soil water
Papers published on a yearly basis
Papers
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TL;DR: The essential oils of seven Myrtaceae species were investigated for its chemical composition and antibacterial activity, with Melaleuca thymifolia exhibiting high antimicrobial activity against all tested bacteria.
Abstract: The essential oils of seven Myrtaceae species were investigated for its chemical composition and antibacterial activity. The volatile oils were characterized by a high content of monoterpenoids of which 1,8-cineole (88.0, 65.0 and 77.0% for Melaleuca hypericifolia, Callistemon viminalis and Callistemon citrinus respectively), terpinen-4-ol (47.0 and 49.8% for Melaleuca thymifolia and Callistemon polandii respectively) and α-pinene (54.5% for Kunzea ericoides) were the major components. The oil from M. linariifolia was characterized by a high concentration of methyleugenol (87.2%). The oil from Melaleuca thymifolia was the most active, exhibiting high antimicrobial activity against all tested bacteria.
68 citations
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TL;DR: The present review addresses the updated research progress in the recent field of complex coacervation made from mixtures of oppositely charged proteins (i.e. heterop protein systems) and the particularity and specificity of each heteroprotein system and the requirements that drive optimal assembly into coacervates are mentioned.
68 citations
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TL;DR: Sediment investigations indicated strong enrichment and high geoaccumulation indices, while chromium concentrations in the analyzed vegetation were higher than those normally found in these materials.
68 citations
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TL;DR: In this article, the authors surveyed the present riparian forest along a segment of the Sao Bartolomeu watershed, ViAosa, MG, and estimated the area that should be planted with native species, using a simple and effective method for measuring small drainage systems.
Abstract: n This study surveyed the present riparian forest along a segment of the Sao Bartolomeu watershed, ViAosa, MG, and estimated the area that should be planted with native species, using a simple and effective method for measuring small drainage systems. The segment studied showed that only 5.7% of the legally required riparian forest exists, represented by nine forest fragments in different stages of ecological succession for a total area of 3.46 hectares. In order to revegetate completely the riparian study area, a model plantation based on a species combination of different ecological groups is proposed. The area to be revegetated in order to obey current legislation is 57.24 hectares, meaning that about 82,830 seedlings of native species will need to be planted.
67 citations
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TL;DR: In this article, the relationship between agricultural exploration and environmental degradation in the area of the Savannahs, in 1995-1996, was analyzed using multivariate statistical analysis, to verify the factors associated with the intensity of farming predominant in the determination of the degradation pattern, and to obtain indexes of exploration intensity to make possible to categorize and to group the microrregions in terms of degradation potential.
Abstract: Being constituted as the largest risk factor and effective degradation to the Savannah, the man's intervention in the nature and, especially, the agricultural exploration require analysis and better monitoring. This work aims to analyze the relationship between the agricultural exploration and the environmental degradation in the area of the Savannahs, in 1995-1996. In particular, it is intended, to use multivariate statistical analysis, to verify the factors associated with the intensity of farming predominant in the determination of the degradation pattern, and to obtain indexes of exploration intensity to make possible to categorize and to group the microrregions in terms of degradation potential. The results showed that the intensity of the agricultural exploration was characterized by the intensive use of the soil (agricultural exploration) and by mechanical and biochemistry technologies; by the intensity of cattle exploration; and other dimensions of the agriculture. The microrregions with larger degradation levels concentrated on the northwest of Minas Gerais, part of south of Goias, and part of the southeast of Mato Grosso. The smallest mean values of the degradation index were due to Tocantins, Piaui and Maranhao. The largest index was from the microrregion of Primavera do Leste (MT) and the smallest, Jalapao (TO).
67 citations
Authors
Showing all 16194 results
Name | H-index | Papers | Citations |
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José A. Teixeira | 101 | 1414 | 47329 |
J. Alfredo Martínez | 82 | 642 | 24009 |
Andrew J. Davison | 78 | 240 | 22171 |
David H. Bromwich | 75 | 291 | 21688 |
Takeji Nishikawa | 59 | 408 | 14727 |
Thierry Candresse | 59 | 403 | 11833 |
Raul Narciso C. Guedes | 55 | 378 | 10668 |
Matthias Erb | 54 | 166 | 8599 |
Arne Janssen | 53 | 179 | 8315 |
Paulo R. Guimarães | 52 | 162 | 10206 |
Antonio Reverter | 52 | 233 | 7259 |
Adriano Nunes-Nesi | 52 | 157 | 8453 |
Fermín I. Milagro | 51 | 245 | 9281 |
Svetoslav Dimitrov Todorov | 51 | 210 | 7072 |
Marcos Heil Costa | 50 | 124 | 9660 |