Results 41 to 50 of about 573,162 (281)
Laser‐Induced Graphene from Waste Almond Shells
Advanced 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
Вопросы образования, 2017 School climate is a significant factor of educational achievement. However, relevant research in Russia is difficult due to the absence of instruments. The paper peeks into the histor y of the notion of school climate, discussing approaches to defining ...
Tatiana Chirkina, Tatiana Khavenson
doaj +1 more source
On the structure of spaces of commuting elements in compact Lie groups [PDF]
, 2012 In this note we study topological invariants of the spaces of homomorphisms Hom(\pi,G), where \pi\ is a finitely generated abelian group and G is a compact Lie group arising as an arbitrary finite product of the classical groups SU(r), U(q) and Sp(k ...
Adem, Alejandro, Gómez, José Manuel
core +1 more source
Broadband, Flexible, Skin‐Compatible Carbon Dots/Graphene Photodetectors for Wearable Applications
Advanced Functional Materials, EarlyView.Broadband, flexible photodetectors integrating nitrogen‐rich carbon dots with single‐layer graphene on plastic substrates are demonstrated. A biocompatible chitosan–glycerol electrolyte enables efficient low‐voltage gating and on‐skin operation. The devices exhibit ultraviolet‐to‐near‐infrared response, mechanical robustness under bending, and verified
Nouha Loudhaief +20 more
wiley +1 more source
Вопросы образования, 2014 Today’s Finnish education started 1968 with a radical reform, when a new comprehensive system of education was introduced, to comprise nine grades, from the age 7 to 15.
Jarkko Hautamäki
doaj +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 +17 more
wiley +1 more source
Revista Eureka sobre Enseñanza y Divulgación de las Ciencias, 2015 En este artículo se analiza el desarrollo de la competencia científica de alumnado de secundaria examinando: a)sus respuestas y justificaciones a ítems de opción de respuesta múltiple utilizados en la evaluación PISA; y b) elefecto que tiene la ...
Beatriz Crujeiras Pérez +1 more
doaj
Вопросы образованияMultiple studies demonstrate a positive association between having a growth mindset and learning achievement. However, recent research reveals that several aspects might moderate this relationship, such as psychological factors, the socioeconomic ...
Nazym Smanova, Gulmira Smanova
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How Central is the PISA Outcomes on Human Development?
International Journal of Contemporary Educational Research, 2022 Unlike the traditional statistical approaches, which imply the existence of a latent common causes that lead to the emergence and covariance of indicators, network modeling suggests that latent traits emerge due to interactions between indicators ...
Akif AVCU
doaj +1 more source
Meniscus Pixel Printing for Contact‐Lens Vision Sensing and Robotic Control
Advanced Functional Materials, EarlyView.A visual‐sensing contact lens is enabled by meniscus pixel printing (MPP), which rapidly patterns a 200 µm perovskite photodetector pixel in 1 s without masks, vacuum processing, or bulky equipment. A deep‐learning‐based super‐resolution reconstructs sparse on‐lens signals into 80 × 80 high‐resolution visual information, while AI‐driven eye‐tracking ...
Byung‐Hoon Gong +7 more
wiley +1 more source