Results 211 to 220 of about 533,835 (390)

Calidad y equidad de las prácticas educativas de maestros de primaria mexicanos en sus clase de ciencias naturales [PDF]

open access: yes, 2008
Se estudian las prácticas educativas en las clases de ciencias naturales de 80 maestros de primaria mexicanos, que trabajan en escuelas de distinto nivel socioeconómico. Se realizaron registros observacionales de las lecciones de los maestros.
Fernández Nistal, María Teresa   +1 more
core   +1 more source

Buenos Maestros vs. Malos Maestros

open access: yes, 2007
Docencia, redes semánticas, signifi cado psicológico, buen maestro, mal maestro.
openaire   +1 more source

Nanoparticle‐Coated X2CrNiMo17‐12‐2 Powder for Additive Manufacturing – Part I: Surface, Flowability, and Optical Properties of SiC, Si, and Si3N4 Coated Metal Powders

open access: yesAdvanced Engineering Materials, EarlyView.
Herein, silicon‐based nanoparticle coatings on X2CrNiMo17‐12‐2 metal powder are presented. The coating process scale, process parameters, nanoparticle size (65–200 nm) as well as the coating amount are discussed regarding powder properties. The surface roughness affects the flowability, while reflectance depends on the coating material and surface ...
Arne Lüddecke   +4 more
wiley   +1 more source

Decreased risk of COVID-19 pneumonia in children and adolescents during the Delta variant emergence. [PDF]

open access: yesPublic Health, 2022
Murillo-Zamora E   +8 more
europepmc   +1 more source

Inclusión y formación de maestros [PDF]

open access: yes, 2009
La Escuela Busca al Niño –EBN– es una estrategia para el reingreso a la escolaridad que desde 1998 se viene implementando en varias ciudades de Colombia. En Medellín, esta estrategia es desarrollada por una alianza interinstitucional, bajo la política de
Calvo, Gloria
core   +2 more sources

Shape Memory Polymer‐Based Hook‐and‐Loop Fastener for Robust Bonding and on‐Demand Easy Separation

open access: yesAdvanced Engineering Materials, EarlyView.
A 3D shape memory polymer‐based hook‐and‐loop fastener, fabricated using projection microstereolithography and molding, offers tunable bonding strength through temperature control. When heated from 25 to 70 °C, the fastener softens and deforms easily, reducing bonding strength by 20‐fold for on‐demand easy separation.
Chen Yang   +5 more
wiley   +1 more source

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