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Roberto Sánchez
Researcher at National Scientific and Technical Research Council
Publications - 10
Citations - 521
Roberto Sánchez is an academic researcher from National Scientific and Technical Research Council. The author has contributed to research in topics: Transmittance & Human eye. The author has an hindex of 4, co-authored 10 publications receiving 396 citations. Previous affiliations of Roberto Sánchez include University of Pamplona & National University of Tucumán.
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Journal ArticleDOI
Plant diversity patterns in neotropical dry forests and their conservation implications
Dryflor,Karina Banda-R,Alfonso Delgado-Salinas,Kyle G. Dexter,Kyle G. Dexter,Reynaldo Linares-Palomino,Reynaldo Linares-Palomino,Ary Teixeira de Oliveira-Filho,Darién E. Prado,Martin R. Pullan,Catalina Quintana,Ricarda Riina,M M Gina Rodríguez,Julia Weintritt,Pedro Acevedo-Rodríguez,Juan Adarve,Esteban Álvarez,B Anairamiz Aranguren,Julián Camilo Arteaga,Gerardo Aymard,Alejandro Castaño,Natalia Ceballos-Mago,Álvaro Cogollo,Hermes Cuadros,Freddy Delgado,Wilson Devia,Hilda del Carmen Dueñas,Laurie Fajardo,Ángel Fernández,Miller Ángel Fernández,Janet Franklin,Ethan H. Freid,Luciano A. Galetti,Reina Gonto,Roy González-M.,Roy González-M.,Roger Graveson,Eileen H. Helmer,Álvaro Idárraga,René López,Humfredo Marcano-Vega,Olga Gladys Martínez,Hernán M. Maturo,Morag McDonald,Kurt McLaren,Omar Melo,Francisco Mijares,Virginia Yanina Mogni,Diego Alonso Restrepo Molina,Natalia del Pilar Moreno,Jafet M. Nassar,Danilo M. Neves,Danilo M. Neves,Luis Jorge Oakley,Michael P. Oatham,Alma Rosa Olvera-Luna,Flávia Fonseca Pezzini,Orlando Joel Reyes Dominguez,María Elvira Ríos,Orlando Rivera,Nelly Rodríguez,Alicia Rojas,Tiina Särkinen,Roberto Sánchez,Melvin Smith,Carlos Vargas,Boris Villanueva,R. Toby Pennington +67 more
TL;DR: Using 835 inventories covering 4660 species of woody plants, marked floristic turnover among inventories and regions indicates that numerous conservation areas across many countries will be needed to protect the full diversity of tropical dry forests.
Journal ArticleDOI
Straylight and Visual Quality on Early Nuclear and Posterior Subcapsular Cataracts
Clemente Paz Filgueira,Clemente Paz Filgueira,Roberto Sánchez,Roberto Sánchez,Luis Issolio,Luis Issolio,Elisa M. Colombo,Elisa M. Colombo +7 more
TL;DR: OSI and log(s) discriminate early stages of nuclear cataracts when taking LOCS III as reference, so these opacities could be graded by any of those parameters.
Journal ArticleDOI
Discrimination between surgical and nonsurgical nuclear cataracts based on ROC analysis.
Clemente Paz Filgueira,Roberto Sánchez,Elisa M. Colombo,Meritxell Vilaseca,Jaume Pujol,Luis Issolio +5 more
TL;DR: A quantitative methodology for determining a criterion to discriminate the nonsurgical nuclear cataract from the surgical one taking into account objective measures of intraocular scattering in patients with good visual acuity is proposed.
Journal ArticleDOI
Enfoques, conceptos y metodologías de medición de la informalidad laboral en Colombia
TL;DR: In this article, the authors compared the main conceptual and empirical approaches to labor informality in Colombia and found that the size of informality can be different depending on the methodological approach, with a rate ranging from 16 to 59%.
Journal ArticleDOI
Comparación de dos test psicofísicos de sensibilidad al contraste en un entorno clínico
Elisa M. Colombo,Javier Enrique Santillán,Walter Arellano,Myriam Berman,Roberto Sánchez,Clemente Paz,Luis Issolio +6 more
TL;DR: The authors compare the desempeno de two test psicofisicos de sensibilidad al contraste, one basado en un sistema informatizado (FVC 100) and otro in laminas impresas (VCTS 6500), empleando la discriminación de redes sinusoidales en condiciones de adaptacion fotopica.