Results 51 to 60 of about 2,513,721 (330)

Los múltiples lenguajes implicados en la comprensión del principio de Pascal

Uni-pluriversidad, 2022
Esta investigación tuvo como objetivo establecer el aporte de los múltiples lenguajes que emplean los estudiantes durante el aprendizaje del principio de Pascal.
Luis Carlos Arias Fonseca, Valentina Cadavid Alzate   +1 more
doaj   +1 more source

Características físicas e químicas do sêmem de bovinos do ecótipo mantiqueira

Boletim de Indústria Animal, 2014
O gado mantiqueira está sendo estudado quanto às características leiteiras na Estação Experimental de Zootecnia de Pindamonhangaba, São Paulo. As características do sêmen dos touros do referido ecótipo foram estudadas, quanto ao seu poder fecundante, utilizando 160 amostras oriundas de oito touros, com idade média de 3,5 anos, durante o ano ...
Terezinha Aparecida Martins Gomes de Castro, Cândido Eduardo Paiva Machado, Fernando Gomes de Castro Júnior   +2 more
openaire   +5 more sources

Co-encapsulation of Daphnia magna and microalgae in silica matrices, a stepping stone toward a portable microcosm [PDF]

, 2014
We report on the first silica encapsulation of a metazoan (Daphnia magna), with a high initial viability (96% of the population remained active 48 h after encapsulation).
Aldabe, Sara Alfonsina, Durrieu, Claude, Jobbagy, Matias, Orias, Frédéric, Perullini, Ana Mercedes   +4 more
core   +1 more source

Roll‐to‐Roll Mechanical Exfoliation for Large‐Area van der Waals Films with Preserved Crystallographic Alignment

Advanced Functional Materials, EarlyView.
A roll‐to‐roll exfoliation method is demonstrated that preserves the crystallographic alignment of anisotropic 2D materials over large areas, enabling scalable fabrication of directional electronic and optoelectronic devices. Abstract Anisotropic 2D materials such as black phosphorus (BP), GeS or CrSBr, exhibit direction‐dependent optical and ...
Esteban Zamora‐Amo, Francisco Fernandez‐Canizares, Yigit Sozen, Thomas Pucher, Pedro L Alcázar Ruano, Carmen Munuera, Ryo Ishikawa, Naoya Shibata, María Varela, Der‐Yuh Lin, Bing Wu, Jorge Quereda, Zdenek Sofer, Gabriel Sánchez‐Santolino, Andres Castellanos‐Gomez   +14 more
wiley   +1 more source

Primeras apropiaciones de la matemática en la física: Resolviendo problemas de cinemática en el primer año de la universidad

Revista de Enseñanza de la Física, 2013
El interés de nuestra investigación está puesto en entender la forma en que los alumnos se apropian del entramado de física y matemática que es necesario para resolver problemas. En este trabajo se presenta el aná
Silvia Margarita Pérez, María Celia Dibar Ure   +1 more
doaj  

Diseño de un dispositivo compacto para generar y testear vórtices ópticos [PDF]

, 2017
Presentamos un diseño compacto para generar y testear diferentes vórtices ópticos con momento angular orbital (OAM). El diseño consiste en una máscara que contiene un holograma binario y un pinhole.
Capeluto, Maria Gabriela, Ledesma, Silvia Adriana, Pabon Riaño, Dudbil Olvasada, Quinteiro, Guillermo Federico   +3 more
core   +1 more source

Trap‐Assisted Transport and Neuromorphic Plasticity in Lead‐Free 2D Perovskites PEA2SnI4

Advanced Functional Materials, EarlyView.
An artificial retina built from lead‐free layered perovskite (PEA)2SnI4 converts light input into a persistent photocurrent and sums successive flashes over time. Micro/nanocrystals integrated on electrodes act as synapse‐like pixels that perform temporal integration directly in hardware. This in‐sensor preprocessing merges detection and computation on
Ofelia Durante, Valeria Demontis, Jonas Riisnaes Karl, Lam Hoi Tung, Sebastiano De Stefano, Daniela Marongiu, Adolfo Mazzotti, Aditya Bhardwaj, Francesco Mattana, Elisa Pili, Selene Matta, Federico Paolucci, Michele Saba, Andrea Mura, Giovanni Bongiovanni, Monica F Craciun, Saverio Russo, Antonio Di Bartolomeo   +17 more
wiley   +1 more source

Monitorización de la Condición Física de Personas en Espacios Confinados Mediante Etiquetas RFID con Sensores y Redes Inalámbricas Eficientes

Revista Iberoamericana de Automática e Informática Industrial RIAI, 2011
[EN] Tracking and physical condition monitoring of people who find themselves in hazardous situations, and therefore may require special attention, is crucial to improving their safety. The systems that are commonly used for this purpose do not include individual monitoring or are too expensive and intrusive to be deployed in common situations. In this
Javier G. -Escribano, Andrés García, Miguel de la Fuente   +2 more
openaire   +4 more sources

Primordial gravitational waves amplification from causal fluids [PDF]

, 2018
We consider the evolution of the gravitational wave spectrum for super-Hubble modes in interaction with a relativistic fluid, which is regarded as an effective description of fluctuations in a light scalar minimally coupled field, during the earliest ...
Calzetta, Esteban Adolfo, Mirón Granese, Nahuel Omar   +1 more
core   +1 more source

MagPiezo: A Magnetogenetic Platform for Remote Activation of Endogenous Piezo1 Channels in Endothelial Cells

Advanced Functional Materials, EarlyView.
MagPiezo enables wireless activation of endogenous Piezo1 channels without genetic modification using 19 nm magnetic nanoparticles and low‐intensity magnetic fields. It generates torque forces at the piconewton scale to trigger mechanotransduction in endothelial cells, standing as a novel platform to interrogate and manipulate Piezo1 activity in vitro.
Susel Del Sol‐Fernández, Mariarosaria De Simone, Yilian Fernández‐Afonso, Daniel Garcia‐Gonzalez, Pablo Martínez‐Vicente, Thomas van Zanten, Raluca M. Fratila, Maria Moros   +7 more
wiley   +1 more source