Results 31 to 40 of about 249,685 (338)

Elaboración de crema antiestrías a partir de productos naturales a escala de laboratorio [PDF]

, 2012
Para iniciar con la elaboración de la crema antiestrías se lleva a cabo un estudio y una investigación detallada de cada una de las materias primas a utilizar de acuerdo con la composición de una fórmula general para cremas de belleza, que permita ...
Cárdenas Vallejo, Liliana, Rojas Gómez, Laura Milena   +1 more
core  

In Materia Shaping of Randomness with a Standard Complementary Metal‐Oxide‐Semiconductor Transistor for Task‐Adaptive Entropy Generation

Advanced Functional Materials, EarlyView.
This study establishes a materials‐driven framework for entropy generation within standard CMOS technology. By electrically rebalancing gate‐oxide traps and Si‐channel defects in foundry‐fabricated FDSOI transistors, the work realizes in‐materia control of temporal correlation – achieving task adaptive entropy optimization for reinforcement learning ...
Been Kwak, Ryun‐Han Koo, Youngchan Cho, Changhyeon Han, Dongbin Kim, Soi Jeong, Yunho Shin, Joonhyeok Choi, Jiseong Im, Jonghyun Ko, Jong‐Ho Lee, Jangsaeng Kim, Youngho Kang, Wonjun Shin, Daewoong Kwon   +14 more
wiley   +1 more source

Pasando la Turquesa: Objetos Azules del Valle de Ónavas, Sonora, México

Clio Arqueológica, 2020
En el Valle de Ónavas, Sonora, México, en la zona media del río Yaqui, se encontraron varias piezas de verde claro a un material de color verde o azul intenso visualmente identificado turquesa durante un trabajo de campo realizado allí en 2004.
Emiliano Gallaga Murrieta, Emiliano Ricardo Melgar Tísoc   +1 more
doaj   +1 more source

Las subidas en los precios de los alimentos y las materias primas: la importancia de los factores financieros y monetarios [PDF]

, 2008
Las subidas en los precios de los alimentos y las materias primas tienen consecuencias de gran relevancia. En este ARI se exploran las posibles causas, y se centra en la interrelación de este fenómeno con factores financieros y monetarios.
Martínez Rolland, Miguel Ángel
core  

Shape‐Changing Multiphase Microparticles from Complex Liquid Crystal Emulsions

Advanced Functional Materials, EarlyView.
Liquid crystalline network (LCN) microparticles are prepared from single, double (Janus), and triple emulsions through a simple and scalable bulk‐emulsification strategy. Under heating, the particles exhibit robust, reversible, large‐amplitude deformations that depend both on the morphology and the liquid crystals director field configuration.
Marco Turriani, Camilla Parmeggiani, Daniele Martella, Alberto Concellón   +3 more
wiley   +1 more source

Novel 3D‐Printed Biophotonic Scaffold Displaying Luminescence under Near‐Infrared Light for Photopharmacological Activation and Biological Signaling Compound Release

Advanced Healthcare Materials, EarlyView.
Despite significant efforts in developing novel biomaterials to regenerate tissue, only a few of them have successfully reached clinical use. It has become clear that the next generation of biomaterials must be multifunctional. Smart biomaterials can respond to environmental or external stimuli, interact in a spatial‐temporal manner, and trigger ...
Sonya Ghanavati, Ekin Opar, Virginia Alessandra Gobbo, Carlo Matera, Fabio Riefolo, Rossella Castagna, Julien Colombelli, Andrew Draganski, Joshua Baggott, Mika Lastusaari, Pau Gorostiza, Laeticia Petit, Jonathan Massera   +12 more
wiley   +1 more source

Ruralidade: definições e tipologias

Gestão e Desenvolvimento, 1996
O termo rural tem significados diferentes para diferentes pessoas. Desde uma paisagem bucólica até zonas remotas, atrasadas e com tradições ancestrais, passando por lugares onde se produzem alimentos e matérias-primas para o sector secundário, tudo cabe ...
Francisco José Lopes de Sousa Diniz
doaj   +1 more source

América Latina después del auge de las materias primas: ¿qué queda del Neo-Extractivismo?

Gestión y Ambiente, 2021
El artículo analiza la situación de América Latina después del auge de las materias primas. Argumenta que los países de la región no han logrado aprovechar las condiciones favorables de los altos precios de las materias primas para impulsar el cambio ...
Stefan Peters
doaj   +1 more source

Stepwise On‐Surface Synthesis and Transformations of Two‐Dimensional Covalent Organic Frameworks by Controlled Thermal Stimuli

Advanced Materials, EarlyView.
The seminal transformation of a 2D‐COF (SURFCOF‐IMDEA1) into a 2D porous COF (SURFCOF‐IMDEA2) on Au(111) by a sequential C‐C coupling and ladderization triggered by thermal annealing steps at increasing temperatures is reported. Abstract The development of covalent organic frameworks (COFs) is currently a primary objective in materials science, taking ...
Ana Barragán, Elena Pérez‐Elvira, Diego J. Vicent, Marco Lozano, Diego Soler‐Polo, Koen Lauwaet, José M. Gallego, Rodolfo Miranda, José I. Urgel, Pavel Jelínek, Nazario Martín, David Écija   +11 more
wiley   +1 more source

INVESTIGAÇÃO DE ESTRATÉGIAS DE LEVEZA E RESISTÊNCIA DAS FIBRAS DE AGAVE PARA MATERIAL DE IMPRESSÃO 3D BIOINSPIRADO

Mix Sustentável, 2019
Matérias-primas são fundamentais para fabricação de artefatos diversos. Porém, a crescente demanda por recursos naturais finitos para extrair matérias-primas contribui significativamente para a degradação ambiental. A substituição de materiais sintéticos
Rodrigo Barbosa de Araújo, Amilton José Vieira de Arruda, Emília Cristina Pereia Arruda   +2 more
doaj   +1 more source