Results 41 to 50 of about 178,524 (213)

LAGO: The Latin American giant observatory [PDF]

open access: yes, 2017
The Latin American Giant Observatory (LAGO) is an extended cosmic ray observatory composed of a network of water-Cherenkov detectors (WCD) spanning over different sites located at significantly different altitudes (from sea level up to more than 5000 m a.
Asorey, Hernán Gonzalo   +2 more
core   +3 more sources

Radioterapia hipofraccionada para cáncer de próstata localizado: ¿Menos tiempo de tratamiento es mejor?

open access: yesOncología, 2021
Introducción: El hipofraccionamiento moderado (hRt) en cáncer de próstata, consisten en disminuir el tiempo total de tratamiento con radioterapia, lo que  mejora la adherencia terapéutica y optimiza recursos tecnológicos.
Andrés Imbaquingo Cabrera   +4 more
doaj   +1 more source

Ultraviolet radiation protection factors of livestock shade cloths for free‐range pigs

open access: yesVeterinary Dermatology, Volume 35, Issue 6, Page 641-651, December 2024.
Background – Protection from solar ultraviolet radiation (UVR) is paramount in light‐skinned pig breeds such as Yorkshire or Landrace to avoid sunburn. Objectives – Determination of the UVR exposure of a pig and the sun protection abilities of shade cloths with different shade rates.
A. W. Schmalwieser   +4 more
wiley   +1 more source

Radiocirugía: pasado, presente y futuro [PDF]

open access: yes, 2010
La radiocirugía (RDC) no es sino un método para radiar un volumen concreto y obedece a un triple principio: localización de la lesión a tratar de forma precisa, (preferentemente submilimétrica), administrar una gran cantidad de radiación a la zona ...
Pérez Espejo Martínez, Miguel A.
core  

Latitudinal variation rate of geomagnetic cutoff rigidity in the active Chilean convergent margin [PDF]

open access: yesAnnales Geophysicae, 2018
We present a different view of secular variation of the Earth's magnetic field, through the variations in the threshold rigidity known as the variation rate of geomagnetic cutoff rigidity (VRc).
E. G. Cordaro   +5 more
doaj   +1 more source

Meristic co‐evolution and genomic co‐localization of lateral line scales and vertebrae in Central American cichlid fishes

open access: yesEcology and Evolution, Volume 14, Issue 9, September 2024.
We dissect the co‐evolution and genetic architecture of lateral line scale counts and vertebrae numbers in Neotropical Heroine cichlids. Our phylogenetic comparative analyses recovered a positive correlation between these two traits. Furthermore, our qualitative traits locus (QTL) analyses identified significant genomic co‐localized associations for ...
Nicolas Ehemann   +3 more
wiley   +1 more source

Algúns conceptos básicos de radiometría e fotometría [PDF]

open access: yes, 2013
Titulación: Licenciatura de Física -- Materia: Dispositivos OptoelectrónicosOs optoelectrónicos son dispositivos de base electrónica que emiten, modulan ou detectan radiación óptica, i.e.
Flores Seijas, José Ramón
core  

IRRADIACIÓN SIMULTANEA DE CAMPOS CONTIGUOS CON HACES DE FOTONES

open access: yesAnales (Asociación Física Argentina), 2013
Se analiza la uniformidad de dosis en todo el volumen de tratamiento cuando éste se irradia con un haz de fotones único o con haces contiguos. Los parámetros considerados son: energía del haz, distancia-fuente-superficie, tamaño del campo, incidencia ...
D. B. Feld, E. Singer
doaj  

Strong phylogenetic signal and models of trait evolution evidence phylogenetic niche conservatism for seagrasses

open access: yesJournal of Ecology, Volume 112, Issue 3, Page 446-460, March 2024.
Our study highlights the relevance of evolution from common ancestors and shared history underpinning large seagrass phylogenetic structuring. Abstract Phylogenetic signal (PS) is the propensity of closely related species to resemble each other. PS has been tested across clades of terrestrial plants; however, insight for seagrasses is still lacking ...
Fernando Tuya   +3 more
wiley   +1 more source

In vitro approach to the study of chronic exposure to low doses of x-rays [PDF]

open access: yes, 2011
El presente trabajo fue realizado con el fin de estudiar el efecto de dosis bajas y repetidas de radiación sobre dos líneas celulares de la misma especie. Se desarrolló un modelo in vitro para evitar la influencia de los factores de confusión que afectan
Peral Garcia, Pilar   +2 more
core   +1 more source

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