Results 21 to 30 of about 40,861 (265)

A Cave Occupied by Cave Bears for Thousands of Years in the Sobrarbe-Pirineos UNESCO Global Geopark (Huesca, Aragon, Spain) [PDF]

open access: yesGeoconservation Research, 2021
The Sobrarbe-Pirineos UNESCO Global Geopark shows an extremely well-developed underground karst relief as a result of the great abundance and thickness of its limestone formations. The most important Pleistocene vertebrate site within the Geopark is Coro
Raquel Rabal-Garcés   +2 more
doaj   +1 more source

Repositorio de tamizaje neonatal, una herramienta para la toma de decisiones en salud pública

open access: yesBiomédica: revista del Instituto Nacional de Salud
Introducción. El tamizaje neonatal es un mecanismo esencial para detectar defectos congénitos en las primeras horas después del nacimiento. Objetivo. Describir la capacidad técnica de los laboratorios que realizan pruebas de tamizaje neonatal en Colombia,
Andrea Melissa Hidalgo   +2 more
doaj   +1 more source

Interfaz multimodal para un asistente robótico quirúrgico: uso de reconocimiento de maniobras quirúrgicas

open access: yesRevista Iberoamericana de Automática e Informática Industrial RIAI, 2011
Resumen: Este trabajo propone una metodología para el reconocimiento de maniobras quirúrgicas en intervenciones de cirugía laparoscópica. El objetivo es la creación de un interfaz entre el cirujano y un asistente robótico quirúrgico de dos brazos para ...
Belén Estebanez   +3 more
doaj   +1 more source

Evaluation of Dust Deposition on Parabolic Trough Collectors in the Visible and Infrared Spectrum

open access: yesSensors, 2020
Solar energy is mostly harnessed in arid areas where a high concentration of atmospheric dust represents a major environmental degradation factor. Gravitationally settled particles and other solid particles on the surface of the photovoltaic panels or ...
Rubén Usamentiaga   +2 more
doaj   +1 more source

¿Es la dirección escolar un trabajo apasionante? Evaluación de la pasión en directivos de Chile y Cataluña

open access: yesEstudios sobre Educación, 2022
Según la literatura, el incremento de la complejidad en la gestión de los centros educativos podría explicar la escasez de candidaturas para la dirección escolar y el agotamiento y deserción de directivos.
Eva Rodríguez-García   +3 more
doaj   +1 more source

Bridging Continents: The Expansion and Establishment of the House Bunting (Emberiza sahari) from North Africa to Europe

open access: yesBirds
Range expansions driven by global warming are increasingly documented, particularly in birds and insects. The House Bunting, a species native to North Africa, has recently established the first confirmed breeding population in mainland Europe in ...
Antonio-Román Muñoz   +14 more
doaj   +1 more source

Study of catalyst bed composition for the direct synthesis of dimethyl ether from CO2-rich syngas

open access: yesChemical Engineering Journal Advances, 2020
In this work, we study the direct synthesis of DME using CO2-rich syngas, with a CO2/CO ratio similar to that obtained from the gasification of biomass, i.e., 1.9. We used catalytic beds consisting of physical mixtures of the benchmark catalysts used for
Cristina Peinado   +5 more
doaj   +1 more source

Effect of Modified Atmosphere Packaging (MAP) and UV-C Irradiation on Postharvest Quality of Red Raspberries

open access: yesAgriculture, 2021
Red raspberries (Rubus idaeus L.) are highly appreciated by consumers. However, their postharvest shelf life scarcely exceeds 5 d under the refrigeration temperatures usually applied during commercialization, due to their high susceptibility to ...
David Gimeno   +4 more
doaj   +1 more source

Análisis de genotipos, alelos y haplotipos de HLA en un grupo de pacientes con artritis psoriásica: poca frecuencia de alelos comunes

open access: yesBiomédica: revista del Instituto Nacional de Salud
Introducción. La artritis psoriásica es una enfermedad compleja y los antígenos leucocitarios humanos (Human Leukocyte Antigen, HLA) son un factor clave en el desarrollo de la enfermedad.
Omar-Javier Calixto   +9 more
doaj   +1 more source

Diet selection by the lesser rhea (Rhea pennata pennata) in Payunia, Northern Patagonia (Mendoza, Argentina)

open access: yesRevista de la Facultad de Ciencias Agrarias, 2022
The lesser rhea (family Rheidae) is a flightless large bird of South America, threatened due to habitat loss, hunting and egg collecting, with special concern in Northern Patagonia.
Silvia Puig   +3 more
doaj  

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