Results 71 to 80 of about 156,291 (204)

La puerta meridional del recinto amurallado de la ciudad de León (siglos I-XIII). Análisis estratigráfico e interpretativo de una nueva evidencia constructiva

open access: yesArqueología de la Arquitectura, 2017
En el año 2000 tuvo lugar el descubrimiento de un gran muro de sillería visto, integrado en el sótano de un local comercial en el casco histórico de la ciudad de León.
Ángel Morillo, Rosalía Durán Cabello
doaj   +1 more source

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal   +4 more
wiley   +1 more source

Pobreza y formación religiosa en la diócesis de León durante la Edad Moderna

open access: yesHispania Sacra, 2016
El seminario conciliar de San Froilán en León nació a comienzos del siglo XVII en el contexto del empuje reformista auspiciado por el concilio de Trento. A medida que el centro adquiría reputación y rentas, sobre todo a partir del último tercio del siglo
Alfredo Martín García
doaj   +1 more source

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

open access: yesAdvanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa   +19 more
wiley   +1 more source

Integration of Low‐Voltage Nanoscale MoS2 Memristors on CMOS Microchips

open access: yesAdvanced Functional Materials, EarlyView.
This article presents the first monolithic integration of nanoscale MoS2‐based memristors into the back‐end‐of‐line of foundry‐fabricated CMOS microchips in a one‐transistor‐one‐resistor (1T1R) architecture. The MoS2‐based 1T1R cells exhibit forming‐free, nonvolatile resistive switching with ultra‐low operating voltages, low cycle‐to‐cycle variability ...
Jimin Lee   +16 more
wiley   +1 more source

Microenvironmental Reprogramming by 3D Anisotropic Cardiac Extracellular Matrix Induces Nuclear Remodeling and Epigenetic Maturation of Chemically Induced Cardiomyocytes

open access: yesAdvanced Functional Materials, EarlyView.
A 3D anisotropic hydrogel derived from heart extracellular matrix guides cytoskeletal alignment and nuclear remodeling in reprogrammed cardiomyocyte‐like cells. This study reveals how matrix alignment modulates nuclear envelope dynamics and chromatin state, triggering transcriptional and functional maturation.
Seung Ju Seo   +7 more
wiley   +1 more source

De leones, águilas y liebres (y caballos y perros): bestiarios y enciclopedias naturales en el Lucidario de Sancho IV

open access: yesÍtaca
El Lucidario es un diálogo entre un maestro y su discípulo compuesto bajo el auspicio de Sancho IV de Castilla entre 1293 y 1295. Escrito siguiendo la tradición escolástica de la literatura de quaestiones, el tratado dedica cerca de un tercio de sus 100 ...
Mario Cossío Olavide
doaj   +1 more source

Receptor‐Free Identification of Toxic Gases Enabled by Hygroscopic Aqueous Salt Films

open access: yesAdvanced Functional Materials, EarlyView.
Water as a gas sensor coating sounds impossible—until it stops evaporating. Here, hygroscopic salt solutions (LiCl, LiBr, H3PO4) form non‐drying aqueous films on CNT chemiresistors under ambient air. Gases partition into these liquid layers, sometimes transforming into water, and generate salt‐specific resistance fingerprints across a four‐channel ...
Seongwoo Lee   +5 more
wiley   +1 more source

Swelling‐Programmed Topographical Guidance for Dynamic Spheroid Self‐Assembly via a Mechanochemical Hydrogel Niche

open access: yesAdvanced Functional Materials, EarlyView.
A swelling‐programmed micropatterned hydrogel guides adherent cells through a controlled transition from cell–matrix anchoring to cadherin‐mediated cell–cell compaction, enabling rapid assembly of high‐viability spheroids with defined size and morphology.
Han Gyeol Nam   +8 more
wiley   +1 more source

La imagen de las ciudades y regiones altomedievales de León y de Castilla en las Crónicas Generales (de Sampiro a la «Estoria de España»)

open access: yesStudia Historica. Historia Medieval, 2011
El trabajo pretende caracterizar la imagen que la cronística general de los siglos XI al XIII ofreció del pasado histórico de León y Castilla correspondiente aproximadamente al siglo X, época de la monarquía leonesa y condado de Castilla. Específicamente
José M.ª MONSALVO ANTÓN
doaj  

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