Results 21 to 30 of about 1,524,239 (314)
Facet‐Specific PbS Quantum Dot Passivation Using Halide Perovskites for SWIR Photodetectors
Advanced Materials Interfaces, EarlyView.PbS quantum dots (QDs) are emerging as powerful short‐wave infrared photodetectors, yet the passivation mechanism of large QDs by perovskites ‐ critical for their stability ‐ remains unexplained. Here, we unveil the ligand structure of CH3NH3PbI3 (MAPI)‐passivated 4‐nm PbS QDs using FTIR, XPS, SEM, NMR, and DFT.
L. Paillardet +13 more
wiley +1 more source
Japanese journal of leprosy, 2006 The time of the settlement of leprosy in Mexico is uncertain, however recent studies pointed out that leprosy was probably brought by Asian's migration at about 12,000 years ago and not by the Europeans conquerors during XVI and XVII centuries. Registration of leprosy has been done since the colonial era and the disease was considered as a public ...
Lopez Roa, Rocio Ivette +1 more
openaire +3 more sources
Advanced Materials Interfaces, EarlyView.This study investigates friction and wear of AISI 52100 steel under dry sliding in CO2, air, and N2 atmospheres, with and without contact electrification. CO2 forms a stable carbon‐rich tribofilm that reduces friction by ∼30% and wear by ∼85%. High‐resolution TEM, EELS, and molecular dynamics reveal pressure‐dependent lubrication mechanisms, showing ...
Julio A. Cao‐Romero‐Gallegos +6 more
wiley +1 more source
An Accessible Microfluidic Platform for the Generation of Polarized Brain Organoids
Advanced 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
Advanced 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
Advanced 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
Revista Mexicana de Ciencias Políticas y Sociales, 2022 Convenio entre los Estados Unidos Mexicanos y el Japón, sobre pesca por embarcaciones japonesas en las aguas contiguas al mar territorial mexicano
Gobiernos de México y Japón
doaj
Las jóvenes que desertan de la educación media: virajes y puntos de no retorno
Revista 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