Results 41 to 50 of about 36,707 (192)

Growth Modeling of the Giant Electric Ray Narcine entemedor in the Southern Gulf of California: Analyzing the Uncertainty of Three Data Sets

open access: yesAnimals, 2021
The age and growth rate of the giant electric ray, Narcine entemedor, was estimated using growth bands deposited in the vertebral centra of 245 specimens.
Pablo Mora-Zamacona   +6 more
doaj   +1 more source

Variable-fidelity electromagnetic simulations and co-kriging for accurate modeling of antennas [PDF]

open access: yes, 2013
Accurate and fast models are indispensable in contemporary antenna design. In this paper, we describe the low-cost antenna modeling methodology involving variable-fidelity electromagnetic (EM) simulations and co-Kriging.
Couckuyt, Ivo   +3 more
core   +1 more source

Forging Technical Career Skills in Virtual Reality: How Immersion Shapes Learning and Engagement

open access: yesInternational Journal of Training and Development, EarlyView.
ABSTRACT Virtual reality (VR) is rapidly gaining popularity in vocational education and training (VET). We conducted a between‐subjects experiment to explore how VR modality (headset vs. desktop VR) influences trainee reactions and performance for a simulated welding task.
Benjamin D. Blachly   +3 more
wiley   +1 more source

Primer registro de la raya manzana, Paratrygon aiereba (Müller & Henle, 1841) (Batoidea: Potamotrygonidae) para el río Bita, Orinoquía, Colombia

open access: yesLatin American Journal of Aquatic Research, 2013
La raya manzana Paratrygon aiereba ha sido confirmada en Colombia para la cuenca del Orinoco en los ríos Meta, Inírida, Tomo, Orinoco y bajo río Arauca. Este estudio la reporta por primera vez para el río Bita, a partir de una hembra grávida capturada en
Luis A Muñoz-Osorio   +1 more
doaj  

Effects of different error corrections on conditional discriminations acquisition [PDF]

open access: yes, 2019
Se expuso a adultos a un procedimiento de discriminación condicional encadenada o uno con emparejamiento, con imágenes o nombres de pintores, sus nacionalidades y sus obras como estímulos muestra y de comparación.
Baltazar, Brasil   +3 more
core   +1 more source

Care and control: Juvenile probation officers' roles when supervising pregnant and parenting teens

open access: yesJuvenile and Family Court Journal, EarlyView.
Abstract The purpose of this study is to understand how juvenile probation officers (JPOs) fulfill the “care” and “control” functions of their job when supervising a potentially vulnerable group of young people: pregnant and parenting teens. The results, derived from surveys administered to JPOs in a large county in Texas, indicate that many JPOs have ...
Brae Young
wiley   +1 more source

El estado actual de los tiburones y rayas sujectos a explotación comercial en el Golfo de California: una investigación aplicada al mejoramiento de su manejo pesquero y conservación [PDF]

open access: yes, 2009
Se realizaron prospecciones estacionales durante 1998–1999 en Baja California, Baja California Sur, Sonora y Sinaloa para determinar la dimensión y las actividades de las pesquerías artesanales de elasmobranquios dentro del Golfo de California.
Bizzarro, Joseph J.   +7 more
core  

ESM‐1 and GBP‐1 are associated with endothelial dysfunction: emerging biomarkers or key players in the pathophysiology of preeclampsia?

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Endothelial specific molecule‐1 (ESM‐1) and guanylate binding protein‐1 (GBP‐1) are proteins that are produced by activated/dysfunctional endothelial cells and are increased and decreased, respectively, during preeclampsia. It remains to be established whether ESM‐1 and GBP‐1 could potentially be included as biomarkers for the ...
Ines Pronk   +3 more
wiley   +1 more source

New specimens and records of chondrichthyan fishes (Vertebrata: Chondrichthyes) off the Mexican Pacific coast Nuevos ejemplares y nuevos registros de peces cartilaginosos (Vertebrata: Chondrichthyes) de la costa del Pacífico mexicano

open access: yesRevista Mexicana de Biodiversidad, 2010
New specimens and new records of occurrence for 10 species of chondrichthyan (elasmobranch and chimaeroid) fishes previously unknown or little documented for the continental shelf of the Mexican Pacific are reported.
Gorgonio Ruiz-Campos   +4 more
doaj  

Erosion of materials used in heart valves prosthesis [PDF]

open access: yes, 2013
Se estudia la erosión de materiales utilizados en la construcción de prótesis de válvulas cardíacas, Acero inoxidable 316 y Poli-metacrilato de metilo (PMMA) a niveles de desgaste bajos, esperados en estos dispositivos.
Guerrero, L. A.   +3 more
core  

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