Results 71 to 80 of about 62,762 (261)
TAXONOMIC NOTES IN Danaea SM. (MARATTIACEAE) FROM COSTA RICA, PANAMA, AND COLOMBIA
Actualidades Biológicas, 2013 Three new species of Danaea are described here: D. epilithica A. Rojas, D. macrophylla A. Rojas and D. moralesiana A. Rojas. The first species differs from Danaea nodosa (L.) Sm.
Alexander F. Rojas-Alvarado
doaj
, 1989 Las mareas rojas, catástrofes naturales, inevitables y casi siempre impredecibles, se han incrementado notablemente en los últimos años. Con el fin de atenuar sus efectos se implementan hoy diversos sistemas de predicción y control, tarea que aún presenta muchas dificultades.
openaire +2 more sources
Diagnostic Cytopathology, EarlyView.ABSTRACT Background Pancreatic adenocarcinoma (PDAC) is characterized by its poor prognosis. Cytology is essential for diagnostic confirmation and ancillary studies. The endoscopic ultrasound (EUS) set a precedent, facilitating cytological sampling through fine‐needle aspiration (FNA), with a sensitivity of 93% and a specificity of 95%.
Judith González‐López +10 more
wiley +1 more source
Ecography, EarlyView.Freshwater environments are intertwined with human activities and the consequence has been environmental degradation and biodiversity loss. Fish provide key ecological and economic benefits, and fish abundance and diversity can be affected by human activities resulting in functional diversity (FD) changes that might scale up to ecosystem impacts ...
Romullo Guimarães de Sá Ferreira Lima +3 more
wiley +1 more source
El mayor grado de atacabilidad de bienes jurídicos en contraposición del derecho penal de enemigo.
Jurídicas, 2007 Luego de abordar descriptivamente las concepciones del Derecho Penal de Ciudadano y de Enemigo formuladas por Günther Jakobs, explico cómo la adopción de un modelo de Derecho Penal de Enemigo impide la concreción de uno de los principales fundamentos ...
Ricardo Gaviria Ramírez
doaj
Clinical and epidemiological characteristics of severe acute respiratory infection due to respiratory syncytial virus in children under 5 years [PDF]
Horizonte Médico, 2016 OBJETIVES: To compare the clinical and epidemiological characteristics of severe acute respiratory infection in children under 5 years old with and without infection due to respiratory syncytial virus.
Hugo Antonio +4 more
doaj
Ecography, EarlyView.Climate change is altering plant reproductive phenology; however, a scarcity of long‐term, systematic monitoring hinders our ability to quantify and predict these responses in many parts of the world. We addressed this gap by demonstrating how data integration can be used to produce a synthesised record of reproductive phenology observations (flowering
Ella Cathcart‐van Weeren +14 more
wiley +1 more source
Promoción de la lactancia materna exclusiva: una necesidad permanente
Medisur, 2014 .
Ener de Jesús Fernández Brizuela
doaj +2 more sources
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.This study examines the structural and chemical evolution of low‐loaded Ir/ATO anodes during PEM water electrolysis under realistic conditions. Iridium dissolution is largely suppressed. In the early stages, both ionomer and support degradation are detected. Morphological reorganization occurs at the interface between the anode catalyst layer (ACL) and
Sambal Shashank Ambu +11 more
wiley +1 more source
Anuario Colombiano de Historia Social y de la Cultura, 2000 María Eugenia Rojas de Moreno, Rojas Pinllla mi padre, Panamericana Formas e Impresos, Bogotá, 2000, 500 pp. / Jorge Serpa Erazo, Rojas Pinilla. Una historia del siglo XX, Planeta Colombiana, Bogotá, 1999, 537 pp.
Eduardo Sáenz Rovner
doaj +2 more sources