Institution
Federal University of São Carlos
Education•São Carlos, Brazil•
About: Federal University of São Carlos is a education organization based out in São Carlos, Brazil. It is known for research contribution in the topics: Population & Microstructure. The organization has 16471 authors who have published 34057 publications receiving 456654 citations. The organization is also known as: UFSCar & Federal University of São Carlos.
Topics: Population, Microstructure, Context (language use), Catalysis, Alloy
Papers published on a yearly basis
Papers
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TL;DR: Diversification and demographic events appear to have been affected by the Quaternary climatic cycles as a result of isolation in multiple patches of xerophytic vegetation, and these small patches presently harbouring P. aurisetus populations seem to operate as microrefugia, both at present and during Pleistocene interglacial periods.
Abstract: The role of Pleistocene climate changes in promoting evolutionary diversification in global biota is well documented, but the great majority of data regarding this subject come from North America and Europe, which were greatly affected by glaciation. The effects of Pleistocene changes on cold- and/or dry-adapted species in tropical areas where glaciers were not present remain sparsely investigated. Many such species are restricted to small areas surrounded by unfavourable habitats, which may represent potential interglacial microrefugia. Here, we analysed the phylogeographic structure and diversification history of seven cactus species in the Pilosocereus aurisetus complex that are restricted to rocky areas with high diversity and endemism within the Neotropical savannas of eastern South America. We combined palaeodistributional estimates with standard phylogeographic approaches based on two chloroplast DNA regions (trnT-trnL and trnS-trnG), exon 1 of the nuclear gene PhyC and 10 nuclear microsatellite loci. Our analyses revealed a phylogeographic history marked by multiple levels of distributional fragmentation, isolation leading to allopatric differentiation and secondary contact among divergent lineages within the complex. Diversification and demographic events appear to have been affected by the Quaternary climatic cycles as a result of isolation in multiple patches of xerophytic vegetation. These small patches presently harbouring P. aurisetus populations seem to operate as microrefugia, both at present and during Pleistocene interglacial periods; the role of such microrefugia should be explored and analysed in greater detail.
95 citations
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TL;DR: In this article, the current status of several analytical methodologies using vegetal tissue and crude extracts as enzymatic source is described, and the obtention of vegetal crude extract and/or tissue and selected enzymatics procedures are presented emphasizing its characteristics and peculiarities.
Abstract: This article describes the current status of several analytical methodologies using vegetal tissue and crude extracts as enzymatic source. In this divulgation paper the obtention of vegetal crude extract and/or tissue and selected enzymatic procedures are presented emphasizing its characteristics and peculiarities. Examples of many biosensors and/or flow injection procedures using vegetal tissues or crude extracts for the determination of many analytes, such as amines, ascorbic acid, ethanol, glutamate, hydrogen peroxide, oxalic acid, pectins, phenolic compounds and urea of biologic, environmental, food, pharmaceutical and industrial interests are also given and discussed.
95 citations
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TL;DR: In this article, anodic titanium oxide films obtained at galvanostatic conditions (1.52 mA cm−2) in phosphate buffer solutions (pH 1 and 5) were analyzed by X-ray photoelectron spectroscopy (XPS).
95 citations
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TL;DR: In this article, the effect of different complexing agents on sensitivity was evaluated based on the formation of Co volatile compounds and a cloud point procedure was optimized for Co preconcentration for further improvement of sensitivity.
95 citations
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TL;DR: In this paper, the results of the first study involving a novel scientific and technological approach to evaluate the possibility of combining these two types of wastes in the production of a light-weight composite for concrete were presented.
95 citations
Authors
Showing all 16693 results
Name | H-index | Papers | Citations |
---|---|---|---|
Akihisa Inoue | 126 | 2652 | 93980 |
Michael R. Hamblin | 117 | 899 | 59533 |
Daniel P. Costa | 89 | 531 | 26309 |
Elson Longo | 86 | 1454 | 40494 |
Ross Arena | 81 | 671 | 39949 |
Tom M. Mitchell | 76 | 315 | 41956 |
José Arana Varela | 76 | 748 | 23005 |
Luiz H. C. Mattoso | 66 | 455 | 17432 |
Steve F. Perry | 66 | 294 | 13842 |
Edson R. Leite | 63 | 535 | 15303 |
Juan Andrés | 60 | 493 | 13499 |
Edward R. T. Tiekink | 60 | 1967 | 21052 |
Alex A. Freitas | 60 | 345 | 14789 |
Mary F. Mahon | 59 | 539 | 14258 |
Osvaldo N. Oliveira | 59 | 614 | 16369 |