Results 91 to 100 of about 1,105,273 (330)

Peak characteristics of F2 region over Tucumán: Predictions and measurements [PDF]

open access: yes, 2008
Ionosonde measurements obtained at Tucuman are used to check the validity of the International Reference Ionosphere model to predict the maximum electron density of F2 region (NmF2) and its height (hmF2) over this station. Data corresponding to different
Ezquer, Rodolfo Gerardo   +3 more
core   +1 more source

Origin, evolution and biogeographic dynamics of the European rabbit (Oryctolagus cuniculus) in Southwestern Europe

open access: yesThe Anatomical Record, EarlyView.
Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley   +1 more source

Efecto insecticida, repelente y antialimentario de cinco extractos botánicos en larvas de gusano cogollero, Spodoptera frugiperda (Lepidoptera: Noctuidae)

open access: yesCuadernos de investigación UNED
Introducción: la dependencia de insecticidas sintéticos ha alterado el equilibrio ecológico de la fauna entomológica agrícola, favoreciendo el desarrollo y la resistencia de plagas como S. frugiperda.
Jairo Mora-Prendas   +1 more
doaj   +1 more source

Computer simulation of platelet activation in a pulsatile ventricular assist device, through finite elements and a simplified geometry [PDF]

open access: yes, 2017
Ventricular assist devices are a technological solution for patients who suffer from cardiac insufficiency and await a transplant. In this work, a new design of an implantable pulsatile blood pump is analyzed in terms of blood damage, by means of finite ...
Berli, Marcelo Eduardo   +4 more
core  

Potential conservation of circadian clock proteins in the phylum Nematoda as revealed by bioinformatic searches [PDF]

open access: yes, 2014
Although several circadian rhythms have been described in C. elegans, its molecular clock remains elusive. In this work we employed a novel bioinformatic approach, applying probabilistic methodologies, to search for circadian clock proteins of several of
A Claridge-Chang   +108 more
core   +3 more sources

Nivel de satisfacción de estudiantes en el diseño e implementación del laboratorio de simulación virtual en la Sección de Farmacología de la Facultad de Medicina de la UNMSM

open access: yes, 2015
Objetivo: Disenar y construir un modelo pedagogico de uso del  Laboratorio de Simulacion Virtual en laSeccion de Farmacologia y conocer el nivel de satisfaccion de los estudiantes.Material y Metodos: Estudio descriptivo, cualitativo de tipo investigacion-
M. P. Medina   +5 more
semanticscholar   +1 more source

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

open access: yesThe Anatomical Record, EarlyView.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt   +4 more
wiley   +1 more source

NORMAS PARA APRESENTAÇÃO DOS ORIGINAIS

open access: yesTrans/Form/Ação, 2016
1) Originalidade Trans/Form/Ação publica textos originais na forma de artigos, além de entrevistas, traduções de ensaios filosóficos de reconhecida relevância, e resenhas de obras filosóficas.
Laboratório Editorial
doaj  

Bond-slip in reinforced concrete elements [PDF]

open access: yes, 2005
A model for fiber reinforced composites that takes into account the fiber slipping is presented in this paper and applied to the analysis of reinforced concrete elements.
Danesi, Rodolfo Francisco   +2 more
core   +1 more source

Os diferentes tipos de abordagem de um laboratório em matemática e suas contribuições para a formação de professores

open access: yes, 2015
Laboratorios ligados ao ensino e aprendizagem da matematica tem sido o objeto de estudo de varias pesquisas em Educacao Matematica. Nestes estudos nao ha nenhuma tentativa em caracterizar e diferenciar os diferentes tipos de laboratorio que vem sendo ...
F. C. Rodrigues, E. S. Gazire
semanticscholar   +1 more source

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