Institution
Universidade Federal de Santa Catarina
Education•Florianópolis, Brazil•
About: Universidade Federal de Santa Catarina is a education organization based out in Florianópolis, Brazil. It is known for research contribution in the topics: Population & Context (language use). The organization has 28408 authors who have published 55433 publications receiving 714461 citations.
Papers published on a yearly basis
Papers
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TL;DR: In this article, the integrability of the short pulse equation from a Hamiltonian point of view was proved and an alternative zero-curvature formulation was also given, where the recursion operator defined by the Hamiltonian operators is connected with the one obtained by Sakovich and Sakovich.
144 citations
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01 Dec 2013TL;DR: This note aims to present the software IRAMUTEQ (Interface de R pour les Analyses Multidimensionnelles de Textes and Questionnaires), developed by Pierre Ratinaud (2009), which is a free program.
Abstract: This note aims to present the software IRAMUTEQ (Interface de R pour les Analyses Multidimensionnelles de Textes et de Questionnaires), developed by Pierre Ratinaud (2009). This is a free program,
144 citations
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TL;DR: The Search Group Algorithm (SGA) is successfully applied for the structural optimization of trusses and found the lightest structures available in the literature, to the best of the authors' knowledge.
144 citations
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TL;DR: In this paper, the authors summarized the use of Ionic liquids, deep eutectic solvents (DES) and NADES for the extraction of bioactive compounds from natural products, presenting their evolution, process variables, target compounds, extraction techniques employed and future perspectives.
Abstract: Background Bioactive compounds have been intensely studied because of their biological properties that provide health benefits. However, for chemical or biological applications, these compounds are obtained mostly by using organic solvents. Emergent technologies consider the combination of methods and process optimization to improve the utilization of raw material, decreasing process costs, time and energy consumption. Additionally, due to the arising interest for green processes, alternative solvents have been developed. Ionic liquids (IL), deep eutectic solvents (DES) and, recently, natural deep eutectic solvents (NADES) can show high ability to extract organic, inorganic and polymeric bio-compounds. Overall, these promising solvents are environmentally friendly and less toxic than conventional extraction solvents. Scope and approach This review summarizes the use of IL, DES, and NADES for the extraction of bioactive compounds from natural products, presenting their evolution, process variables, target compounds, extraction techniques employed and future perspectives. Key findings and conclusions The use of these emerging solvents for extraction process has shown to be promising. Besides its high solvation ability and versatility, these solvents may present low or none toxicity. Particularly, it is allowed the use of NADES in food and pharmaceutical formulations, however, some DES and IL are in need of further investigation. IL, DES, and NADES are recyclables and can be related to sustainable processes. Therefore, to expand the applications of these emerging solvents for the recovery of bioactive compounds, the extraction mechanisms involved need to be proper elucidated.
144 citations
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TL;DR: The decline of multigear fisheries catches is shown – combining anecdotal and scientific data – as well as changes in environmental perceptions over generations of fishermen, which show both the decline of multi-species fisheries catches and the occurrence of the shifting baseline syndrome.
Abstract: In the last decades, a number of studies based on historical records revealed the diversity loss in the oceans and human-induced changes to marine ecosystems. These studies have improved our understanding of the human impacts in the oceans. They also drew attention to the shifting baseline syndrome and the importance of assessing appropriate sources of data in order to build the most reliable environmental baseline. Here we amassed information from artisanal fishermen's local ecological knowledge, fisheries landing data and underwater visual census to assess the decline of fish species in Southeastern Brazil. Interviews with 214 fishermen from line, beach seine and spearfishing revealed a sharp decline in abundance of the bluefish Pomatomus saltatrix, the groupers Epinephelus marginatus, Mycteroperca acutirostris, M. bonaci and M. microlepis, and large parrotfishes in the past six decades. Fisheries landing data from a 16-year period support the decline of bluefish as pointed by fishermen's local knowledge, while underwater visual census campaigns show reductions in groupers' abundance and a sharp population decline of the Brazilian endemic parrotfish Scarus trispinosus. Despite the marked decline of these fisheries, younger and less experienced fishermen recognized fewer species as overexploited and fishing sites as depleted than older and more experienced fishermen, indicating the occurrence of the shifting baseline syndrome. Here we show both the decline of multigear fisheries catches – combining anecdotal and scientific data – as well as changes in environmental perceptions over generations of fishermen. Managing ocean resources requires looking into the past, and into traditional knowledge, bringing historical baselines to the present and improving public awareness.
143 citations
Authors
Showing all 28762 results
Name | H-index | Papers | Citations |
---|---|---|---|
Richard Vidal | 113 | 685 | 61464 |
Carlos A. Peres | 101 | 434 | 33582 |
Pedro J. J. Alvarez | 89 | 378 | 34837 |
Hans J. Herrmann | 87 | 999 | 30760 |
Elson Longo | 86 | 1454 | 40494 |
Anthony H. Dickenson | 86 | 353 | 24982 |
Kannan Govindan | 83 | 309 | 23633 |
João B. Calixto | 81 | 460 | 23029 |
Walter Herzog | 79 | 672 | 23816 |
Alírio E. Rodrigues | 79 | 832 | 28848 |
Domenico Girelli | 72 | 349 | 23968 |
Larry Davidson | 69 | 459 | 20177 |
Diogo O. Souza | 68 | 534 | 17793 |
David Kirk | 67 | 303 | 14177 |
Felipe Dal-Pizzol | 65 | 380 | 13171 |