Results 31 to 40 of about 1,723,169 (286)

COMPORTAMIENTO SÍSMICO DE PUENTES ARCO. UN PANORAMA DEL ESTADO DEL CONOCIMIENTO

open access: yesRevista de Ingeniería Sísmica, 2003
Los terremotos de Loma Prieta en 1989, de Northridge en 1994, y de Hyogo-ken Nanbu en 1995, han mostrado que los puentes son estructuras sísmicamente vulnerables. Aún cuando los puentes arco no han sufrido daños severos en sismos pasados, ni aún en los eventos mencionados, esto no significa que no puedan sufrirlo en algún futuro sismo de gran ...
José de Jesús Álvarez   +1 more
openaire   +3 more sources

La gestión del conocimiento en el desarrollo municipal. Caso Texcalyacac, Estado de México [PDF]

open access: yes, 2011
Hablar de desarrollo de un país implica enfocar el tema hacia las regiones y los municipios que lo conforman. En México existen grandes desigualdades en el nivel de desarrollo alcanzado en el ámbito municipal y regional, por lo que es una necesidad ...
Gómez Díaz, María del Rocío
core  

Color Routing and Beam Steering of Single‐Molecule Emission with a Spherical Silicon Nanoantenna

open access: yesAdvanced Functional Materials, EarlyView.
We experimentally demonstrate broadband directional emission from single molecules using a single spherical silicon nanoparticle assembled via DNA origami. By varying nanoparticle (NP) size and emitter position, we achieve unidirectional emission, beam steering, and color routing at the nanoscale, revealing modal interference as the underlying ...
María Sanz‐Paz   +9 more
wiley   +1 more source

Un estado del arte sobre el conocimiento tácito de los grupos [PDF]

open access: yes, 2017
Desde la teoría de creación de conocimiento organizacional, se plantean diferentes tipos de conocimiento: el individual, el grupal y el organizacional, los cuales pueden ser tácitos o explícitos -- Teniendo en cuenta que todo conocimiento es socialmente ...
Diez Gaviria, Ana Cecilia
core  

A Tri‐Culture Heart‐on‐a‐Chip Platform With iPSC‐Derived Cardiac Cells for Predictive Cardiotoxicity Testing

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents the first entirely isogenic heart‐on‐chip, unifying cardiomyocytes, fibroblasts, and endothelial cells from a single iPSC source. The platform reveals a critical biological insight: the endothelium actively shields cardiac tissue from drug‐induced toxicity, challenging the predictive accuracy of conventional, avascular models for ...
Karine Tadevosyan   +12 more
wiley   +1 more source

A roe deer from the Pliocene of Hidalgo, central Mexico [PDF]

open access: yesActa Palaeontologica Polonica, 2015
Mexican Pliocene cervids are very poorly known. We report on new fossil material of the roe deer Capreolus constantini recovered from the Pliocene Atotonilco El Grande Formation of Santa María Amajac, Hidalgo (central Mexico).
Eduardo Jiménez-Hidalgo   +1 more
doaj   +1 more source

Trophic interactions between two sympatric mesocarnivores in an anthropized landscape from the Mexican highlands

open access: yesGlobal Ecology and Conservation, 2023
The study of diets in North American carnivores has been assessed from different methods, essentially analyzing the composition of their diet, and classifying the species based on the breadth of their trophic niche. Still, studies that explore aspects of
Luis A. Alanis-Hernández   +5 more
doaj   +1 more source

Estado actual del conocimiento en rinitis alérgica local

open access: yesRevista Alergia México, 2020
In recent years, a new phenotype of rhinitis has been described; it is characterized by the local production of specific IgE. There isn’t any evidence of systemic atopy and it has been called local allergic rhinitis. Understanding the involved physiopathological mechanisms and the behavior of this phenotype translates into the development of strategies
Ana Calle   +3 more
openaire   +2 more sources

Gestión del conocimiento para la administración del recurso humano “estado del arte [PDF]

open access: yes, 2007
y perspectivas actuales de la gestión humana a nivel mundial: Estado del arte, realizada por el grupo LIONES-O, perteneciente a la Facultad de Ciencias Empresarialesde la Universidad San Buenaventura, sede MedellínEl trabajo pretende revisar, desde lo ...
Botero Escobar, Nora Elena
core  

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

open access: yesAdvanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen   +5 more
wiley   +1 more source

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