Institution
Escuela Superior Politecnica del Litoral
Education•Guayaquil, Ecuador•
About: Escuela Superior Politecnica del Litoral is a education organization based out in Guayaquil, Ecuador. It is known for research contribution in the topics: Population & Computer science. The organization has 2386 authors who have published 2535 publications receiving 22218 citations.
Papers published on a yearly basis
Papers
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TL;DR: The research shows that there is a significant association between contingency measures and improvement in air quality, clean beaches and environmental noise reduction, and decreasing GHG concentrations during a short period is not a sustainable way to clean up the environment.
945 citations
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University of East Anglia1, National Institute for Space Research2, University of São Paulo3, University of Buenos Aires4, Universidade Federal do Rio Grande do Sul5, University of the Republic6, Universidad Nacional de Asunción7, National Agrarian University8, Federal University of Paraná9, University of Oklahoma10, Federal University of Pará11, Escuela Superior Politecnica del Litoral12, Meteorological Service of Canada13
TL;DR: A weeklong workshop in Brazil in August 2004 provided the opportunity for 28 scientists from southern South America to examine daily rainfall observations to determine changes in both total and extreme rainfall as mentioned in this paper.
Abstract: A weeklong workshop in Brazil in August 2004 provided the opportunity for 28 scientists from southern South America to examine daily rainfall observations to determine changes in both total and extreme rainfall. Twelve annual indices of daily rainfall were calculated over the period 1960 to 2000, examining changes to both the entire distribution as well as the extremes. Maps of trends in the 12 rainfall indices showed large regions of coherent change, with many stations showing statistically significant changes in some of the indices. The pattern of trends for the extremes was generally the same as that for total annual rainfall, with a change to wetter conditions in Ecuador and northern Peru and the region of southern Brazil, Paraguay, Uruguay, and northern and central Argentina. A decrease was observed in southern Peru and southern Chile, with the latter showing significant decreases in many indices. A canonical correlation analysis between each of the indices and sea surface temperatures (SSTs) revealed two large-scale patterns that have contributed to the observed trends in the rainfall indices. A coupled pattern with ENSO-like SST loadings and rainfall loadings showing similarities with the pattern of the observed trend reveals that the change to a generally more negative Southern Oscillation index (SOI) has had an important effect on regional rainfall trends. A significant decrease in many of the rainfall indices at several stations in southern Chile and Argentina can be explained by a canonical pattern reflecting a weakening of the continental trough leading to a southward shift in storm tracks. This latter signal is a change that has been seen at similar latitudes in other parts of the Southern Hemisphere. A similar analysis was carried out for eastern Brazil using gridded indices calculated from 354 stations from the Global Historical Climatology Network (GHCN) database. The observed trend toward wetter conditions in the southwest and drier conditions in the northeast could again be explained by changes in ENSO.
646 citations
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TL;DR: In this article, the authors present a context framework that identifies relevant context dimensions for TEL applications and present an analysis of existing TEL recommender systems along these dimensions, based on their survey results, they outline topics on which further research is needed.
Abstract: Recommender systems have been researched extensively by the Technology Enhanced Learning (TEL) community during the last decade. By identifying suitable resources from a potentially overwhelming variety of choices, such systems offer a promising approach to facilitate both learning and teaching tasks. As learning is taking place in extremely diverse and rich environments, the incorporation of contextual information about the user in the recommendation process has attracted major interest. Such contextualization is researched as a paradigm for building intelligent systems that can better predict and anticipate the needs of users, and act more efficiently in response to their behavior. In this paper, we try to assess the degree to which current work in TEL recommender systems has achieved this, as well as outline areas in which further work is needed. First, we present a context framework that identifies relevant context dimensions for TEL applications. Then, we present an analysis of existing TEL recommender systems along these dimensions. Finally, based on our survey results, we outline topics on which further research is needed.
527 citations
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Meteorological Service of Canada1, National Oceanic and Atmospheric Administration2, University of Buenos Aires3, Higher University of San Andrés4, National Institute for Space Research5, University of São Paulo6, Universidade Federal do Rio Grande do Sul7, Federal University of Paraná8, Federal University of Alagoas9, Escuela Superior Politecnica del Litoral10, Universidad Nacional de Asunción11, National Agrarian University12, University of the Republic13, University of East Anglia14, University of Oklahoma15
TL;DR: A workshop on enhancing climate change indices in South America was held in Maceio, Brazil, in August 2004 as discussed by the authors, where scientists from eight southern countries brought daily climatological data from their region for a meticulous assessment of data quality and homogeneity, and for the preparation of climate change index that can be used for analyses of changes in climate extremes.
Abstract: A workshop on enhancing climate change indices in South America was held in Maceio, Brazil, in August 2004. Scientists from eight southern countries brought daily climatological data from their region for a meticulous assessment of data quality and homogeneity, and for the preparation of climate change indices that can be used for analyses of changes in climate extremes. This study presents an examination of the trends over 1960–2000 in the indices of daily temperature extremes. The results indicate no consistent changes in the indices based on daily maximum temperature while significant trends were found in the indices based on daily minimum temperature. Significant increasing trends in the percentage of warm nights and decreasing trends in the percentage of cold nights were observed at many stations. It seems that this warming is mostly due to more warm nights and fewer cold nights during the summer (December–February) and fall (March–May). The stations with significant trends appear to be loca...
458 citations
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TL;DR: Three members of a new family of antimicrobial peptides from the hemolymph of shrimpsPenaeus vannamei in which immune response has not been experimentally induced display antimicrobial activity against fungi and bacteria with a predominant activity against Gram-positive bacteria.
436 citations
Authors
Showing all 2417 results
Name | H-index | Papers | Citations |
---|---|---|---|
Cristina M. Rosell | 70 | 275 | 14509 |
Christoph Busch | 46 | 585 | 9624 |
Marian Wiercigroch | 45 | 295 | 6503 |
Peter W. Swarzenski | 43 | 170 | 5524 |
Alison Taylor | 34 | 141 | 5231 |
Marc Metian | 33 | 129 | 6085 |
Luis Rodríguez | 33 | 237 | 4432 |
Olivier Debeir | 30 | 109 | 3279 |
Minard L. Hall | 29 | 68 | 2316 |
Ammar B. Kouki | 28 | 244 | 2555 |
Enrique Serrano | 28 | 82 | 2467 |
Ernesto Contreras | 26 | 87 | 1659 |
Angel D. Sappa | 26 | 186 | 3300 |
Xavier Ochoa | 24 | 121 | 2523 |
César Lodeiros | 23 | 127 | 1993 |