Results 101 to 110 of about 1,010,601 (246)

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

open access: yesAdvanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen   +16 more
wiley   +1 more source

Programas personales [PDF]

open access: yes, 2019
Tomando como punto de apoyo las necesidades que por el escolar siente y su interés espontáneo en lo, que de aprovechable tenga para la formación de su personalidad, surgen los que pueden llamarse programas personales, cuya más aguda manifestación se ...
García Hoz, Víctor
core   +1 more source

Advances in Solution‐Processed Textile Triboelectric Nanogenerators: Ink Formation, Processing Strategies, Applications, and Challenges

open access: yesAdvanced Functional Materials, EarlyView.
Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley   +1 more source

Factores personales, conductuales y sociales que influyen en el rendimiento académico de estudiantes de odontología

open access: yes, 2012
Tesis (Odontólogo).-- Universidad de Cartagena. Facultad de Odontología, 2012En este trabajo de investigación se busca determinar la relación existente entre factores personales, conductuales y sociales y rendimiento académico en estudiantes de ...
Villarreal Lascarro, Julio Jaime   +1 more
core   +1 more source

Designing Vanadium‐Based Oxide Electrocatalysts for Water Splitting: Experimental and Mechanistic Insights with Machine Learning

open access: yesAdvanced Functional Materials, EarlyView.
This review establishes structure‐property‐mechanism relationships across six modification strategies for V‐based oxide water‐splitting electrocatalysts: lattice engineering, heteroatom doping, interface engineering, carbon‐based hybridization, morphology engineering, and surface reconstruction and pre‐catalyst design, where dissolution is reframed as ...
Youness El Issmaeli   +4 more
wiley   +1 more source

Determinación de las competencias personales de emprendedores jóvenes para la creación de empresas en la Provincia de Tungurahua

open access: yes, 2017
1. Introducción. --2. Planteamiento de la propuesta del trabajo. --3. Marco Teórico de las Competencias Personales del Emprendedor. --4. Metodología. --5. Resultados. --6.
Poveda Morales, Tannia Cristina
core  

Factores en el consumo de alcohol en adolescentes

open access: yesPensamiento Psicológico, 2008
El presente informe de investigación de corte cuantitativo con diseño transeccional correlacional buscó describir los factores asociados al consumo de alcohol en adolescentes de la ciudad de Bogotá.
Diana Cicua   +2 more
doaj  

Engineered Microvascular Model of the Blood–Brain–Tumor Barrier Reveals Endothelial Remodeling in Diffuse Midline Glioma

open access: yesAdvanced Healthcare Materials, EarlyView.
We developed a patient‐derived, functional microfluidic model of the diffuse midline glioma (DMG) blood–brain–tumor barrier (BBTB) comprised of endothelial cells, astrocytes, pericytes, and tumor cells. The system forms perfusable microvasculature, reveals the BBTB retains vascular integrity, identifies DMG‐specific transcriptomic changes distinct from
Kimberly R. Bennett   +7 more
wiley   +1 more source

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