Results 21 to 30 of about 1,792,255 (194)

Charged pion masses under strong magnetic fields in the NJL model [PDF]

open access: yes, 2018
The behavior of charged pion masses in the presence of a static uniform magnetic field is studied in the framework of the two-flavor NJL model, using a magnetic field-independent regularization scheme.
Coppola, Máximo   +2 more
core   +3 more sources

An Accessible Microfluidic Platform for the Generation of Polarized Brain Organoids

open access: yesAdvanced Materials Technologies, EarlyView.
This study presents an accessible double‐gradient microfluidic device that enables controlled morphogen delivery and spatially polarized differentiation in brain organoids. By integrating a pump‐free design and stable fabrication method, the platform generates dorsal–ventral neuronal asymmetry, offering a reproducible and versatile approach to model ...
Daniel Pérez‐Calixto   +6 more
wiley   +1 more source

La agenda de investigación para la educación superior en el Perú: Hacia el diseño de políticas públicas basadas en evidencia

open access: yesRevista Digital de Investigación en Docencia Universitaria, 2018
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Carlos Huayanay-Espinoza   +5 more
doaj   +1 more source

Magnetic Separation and Enrichment of Fe–Ti Oxides from Iron Titaniferous Beach Sands: Process Design Applied to Coastal Ecuador

open access: yesResources, 2022
Iron titaniferous sands, also called black sands, are a source of various magnetic minerals, such as iron and titanium (Fe–Ti) oxides, with countless scientific and industrial applications.
Willam Trujillo   +6 more
doaj   +1 more source

Cimentando un proyecto de investigación: la revisión de literatura [PDF]

open access: yes, 2004
En este capítulo se reflexiona sobre la importancia de las búsquedas bibliográficas en la organización y desarrollo de un proyecto de investigación en didáctica de las matemáticas.
Gutiérrez, Ángel, Maz, Alexander
core  

Development of interactive MRI‐based 3D visualization tools for neuroanatomy education in Latin America

open access: yesAnatomical Sciences Education, EarlyView.
Abstract The study of neuroanatomy is fundamental in many scientific fields. Despite this, it is a challenging subject for students. As technology evolves, it is being increasingly incorporated into educational methods, including the teaching of neuroanatomy. Three‐dimensional (3D) visualizations are well suited for displaying neuroanatomy.
Merlin J. Fair   +5 more
wiley   +1 more source

Exogenous application of GnRH after fixed-time artificial insemination (FTAI) and its effect on serum progesterone levels and pregnancy rate in primiparous dairy cows at high altitude environments [PDF]

open access: yesSPERMOVA, 2016
The aim of the present study was to determine the effect of the exogenous application of gonadotropin-releasing hormone (GnRH) on day 4, 8 and 12 after fixed-time artificial insemination (post-FTAI) in order to evaluate its influence on serum ...
Gutiérrez-Reinoso MA   +2 more
doaj   +3 more sources

Medicamentos biosimilares en Colombia: una revisión desde el consumo informado

open access: yesRevista Ciencias de la Salud, 2018
Introducción: este artículo presenta un análisis sobre medicamentos biosimilares en Colombia con miras a establecer si existe un consumo informado respecto de estos fármacos, teniendo en cuenta la calidad y cantidad de información que circula en ...
Diana Rocío Bernal-Camargo   +2 more
doaj   +1 more source

Teacher education by volunteering in learning communities [PDF]

open access: yes, 2017
El trabajo presentado forma parte del proyecto I+D+I “Ecologías del aprendizaje en contextos múltiples: análisis de proyectos de educación expandida y conformación de ciudadanía” financiado por MIMECO, España.El artículo presenta parte de los resultados ...
Cortés González, Pablo   +3 more
core  

The power of many: when genetics met yeasts and high‐throughput

open access: yesBiological Reviews, EarlyView.
ABSTRACT In recent years, complex technological capabilities have evolved, driven by the need to solve complex and integrative biological questions through global analyses. New equipment allows the scaling up and automation of processes which previously were carried out on a very limited scale.
Víctor A. Tallada, Víctor Carranco
wiley   +1 more source

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