Results 41 to 50 of about 1,457,641 (279)

Estudio comparativo de las economías de Canadá y México en el período 1994-2011 [PDF]

open access: yes, 2012
Incluye BibliografíaCanadá y México, los dos socios menores del Tratado de Libre Comercio de América del Norte (TLCAN), presentan niveles de desarrollo económico muy distintos.
Ros, Jaime
core  

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

Las jóvenes que desertan de la educación media: virajes y puntos de no retorno

open access: yesRevista Latinoamericana en Ciencias Sociales, Niñez y Juventud, 2015
(analítico): Presento en este texto resultados de una investigación que tuvo por objetivo conocer los principales factores de deserción escolar en la educación media en Hermosillo, Sonora, México.
Marcos Jacobo Estrada-Ruiz, México
doaj   +1 more source

Highly Anisotropic Quasi‐Direct Organic Metal Halide Hybrids: A Platform for Polarization‐Sensitive Optoelectronics

open access: yesAdvanced Materials Technologies, EarlyView.
One‐dimensional C4N2H14PbBr4 is shown to have a quasi‐direct electronic band structure and strongly anisotropic transport with polarized broadband emission. A GW/Bethe–Salpeter excited‐state force formalism, supported by polarized Raman and temperature‐dependent photoluminescence, identifies low–frequency Pb–Br phonons that drive ultrafast exciton self‐
Rijan Karkee   +7 more
wiley   +1 more source

From New Mexico State University

open access: yesIssues in Science and Technology Librarianship, 1992
The Southwest Center for Codes and Standards was recently established at the New Mexico State University Library. The feebased service center provides access to over one million national and international standards, including military specifications and
From New Mexico State University
doaj   +1 more source

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

open access: yesAdvanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

El Dr. Luis Arriaga Valenzuela, S. J., nuevo Rector de la Ibero Ciudad de México [PDF]

open access: yes, 2021
El pasado viernes 12 de noviembre, el Dr. Luis Arriaga Valenzuela, S. J. fue elegido nuevo Rector de la Universidad Iberoamericana Ciudad de México para el período 2022-2026.
Universidad Iberoamericana Ciudad de México
core  

La cuestión de Belice

open access: yesRevista Mexicana de Ciencias Políticas y Sociales, 1957
-
Gobierno de México
doaj  

Multiphoton‐Printed Microrobotic Arrays Powered by Discrete, Monolithically Integrated Hydrogel Actuators

open access: yesAdvanced Robotics Research, EarlyView.
Functional surfaces are investigated as a foundation for reconfigurable microscale systems with sensing and actuation capabilities. Advances in additive manufacturing enable our development of planar arrays of hybrid‐material, compliant microdevices that convert environmental stimuli into programmed motion and visual responses.
Sandra Edward   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy