Iván Velasco Jiménez

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Emerson and Kolm show that the proportion of species endemic to an island is positively related to its species richness and, assuming that endemism indexes speciation rate, they infer that greater species diversity accelerates diversification. Here we demonstrate that the same correlation between species richness and percentage endemism can arise even if(More)
Multimedia information retrieval is vital for, among many other fields, design and engineering processes. Studies show that members of product development teams spend more and more time for information gathering and have less and less time for the creative aspects of their work. Here the combination of the still emerging Semantic Web [1] technologies and(More)
Extinction risk has not been evaluated for 96% of all described plant species. Given that the Global Strategy for Plant Conservation proposes preliminary conservation assessments of all described plant species by 2010, herbarium specimens (i.e., primary occurrence data) are increasingly being used to infer threat components from estimates of geographic(More)
  • Introducción Resumen, Juan Camilo Suárez-Escudero, Sandra Catalina, Restrepo Cano, Elsa Patricia Ramírez, Claudia Liliana Bedoya +9 others
  • 2011
SUMMARY IntroductIon. In addition to different functional and structural deficits, cerebrovascular disease causes several types of restrictions in social participation. objectIve. The aim of this study was to describe the clinical, social and occupational characteristics as well as the self-perception in patients with cerebrovascular disease (stroke)(More)
SUMMARY INTRODUCTION: with adecuate antiepilectic therapies; there are 40% patients with persisten crisis and 20% of them have any response to antiepilectic drugs. This patients have a refractary epilepsia almost produced by mesial sclerosis of temporal lobe. Surgery mough be a good alternative in these cases. OBJECTIVE: to describe the experience of(More)
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