Results 51 to 60 of about 2,773,273 (308)

MOF‐Derived Cu‐TiO2/Alginate Micromotors for Buoyancy‐Regulated 3D Motion

open access: yesAdvanced Science, EarlyView.
In this work, cyanobacteria‐inspired sodium alginate (SA)/Cu‐TiO2/Fe3O4 hydrogel micromotors generate and encapsulate O2 microvesicles upon light irradiation, enabling buoyancy‐mediated Z‐axis upward migration and surface enrichment at the light‐exposed water‐air surface.
Wei Zou   +7 more
wiley   +1 more source

The Interplay of Curvature, Geometry, and Topology Shapes Tissue Organisation in Epithelial Shells

open access: yesAdvanced Science, EarlyView.
Purely geometric 3D Voronoi models predict the organisation of epithelial shells. The interplay of curvature, geometry, and topology enriches the number of pentagons in shells with lower number of cells. Small MDCK cysts and Mouse embryos match the top polygonal configurations in a compactness‐based ranking derived from the Voronoi model. In conclusion,
Laura Morato   +9 more
wiley   +1 more source

Día del Libro en la Biblioteca del Museo Naconal de Ciencias Naturales (2021)

open access: yes, 2021
Promoción del catálogo de la colección de placas de mármoles españoles de Carlos III del Museo Nacional de Ciencias Naturales (2021) con motivo de la celebración del día del libro en la biblioteca del Museo Nacional de Ciencias Naturales ...
Muñoz Fernández, Jesús
core  

Abstract Representation of Movement Parameters in Basal Ganglia Output

open access: yesAdvanced Science, EarlyView.
The basal ganglia output provides a scalable velocity/position signal across behavioral contexts, supporting the idea that these variables are represented in the brain as abstract entities rather than as fixed changes in joint angles or specific sets of body effectors.
Ana Silvia Báez‐Cordero   +3 more
wiley   +1 more source

Mechanisms of Temperature‐Dependent Hysteresis in Freestanding BaTiO3/MoS2 Heterostructures

open access: yesAdvanced Science, EarlyView.
Freestanding ferroelectric BaTiO3 membranes are combined with monolayer MoS2 into 2D field‐effect transistors. At room temperature they provide ultrahigh‐κ gating with steep subthreshold swing and minimal hysteresis. Upon cooling, strong ferroelectric switching produces two stable memory states with long retention times.
Thomas Pucher   +7 more
wiley   +1 more source

Una educación para el desarrollo sostenible: un aporte desde las ciencias

open access: yesRevista de Enseñanza de la Física, 2010
El encuentro realizado en Buenos Aires, en la sede del Colegio El Salvador y de la Facultad de Ciencias Exactas y Naturales, fue organizado por la Oficina regional de Educación para América Latina y el Caribe (OREALC), junto con la Red ...
Sonia Concari
doaj  

AI‐EXAFS: Physics‐Informed Prediction of EXAFS from Atomic Structure

open access: yesAdvanced Science, EarlyView.
AI‐EXAFS presents a neural network to reproduce EXAFS. Trained on synthetic data and with a careful selection of the settings both for the physical representation of the system and following the experimental heuristic loss functions, the model is capable of reproducing EXAFS spectra for molecules from the tridimensional structure.
Javier Heras‐Domingo   +6 more
wiley   +1 more source

Revisión de las ?Hydrocotyle? argentinas

open access: yesLilloa, 1938
Revisión de las Hydrocotyle (Apiales) argentinas. * Presentado a la Facultad de Ciencias Exactas, Físicas y Naturales de la Universidad de Buenos Aires, para optar al grado de Doctor en Ciencias Naturales.
Román A. Pérez-Moreau
doaj  

Therapeutic Peptide‐Programmed Liquid‐Crystalline Topology Switching for pH‐Gated Postoperative Cancer Immunotherapy

open access: yesAdvanced Science, EarlyView.
A VDAP‐programmed liquid‐crystalline depot enables pH‐responsive postoperative immunotherapy for triple‐negative breast cancer. VDAP stabilizes a leakage‐resistant HII mesophase through peptide–lipid electrostatic assembly, whereas tumor acidosis unlocks the matrix and promotes graded topology remodeling toward a bicontinuous Im3̄m cubic phase for ...
Yan Yan   +12 more
wiley   +1 more source

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