Results 71 to 80 of about 1,780 (258)

Self‐Sintering Ionogel Binder for Flexible, Recyclable, and Healable Printed Giant Magnetoresistive Sensors

Advanced Functional Materials, EarlyView.
ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo, Xiaotao Wang, Guannan Mu, Proloy Taran Das, Igor Veremchuk, Conrad Schubert, Aaron D. Cross, Yevhen Zabila, Xuan Peng, Larysa Baraban, Denys Makarov   +10 more
wiley   +1 more source

Una aproximación conceptual al termino pasivos ambientales: una propuesta para su puesta en práctica

Panorama Económico, 2019
En el presente trabajo se aborda un análisis alrededor del término pasivos ambientales, identificando una variedad de conceptos en torno al mismo y de diverso origen.
Adolfo E. Carbal Herrera, Carmen Rosales García, Alexandra Hernández Viloria, Luis Martínez Gómez   +3 more
doaj   +1 more source

Vulnerabilidad, Crisis Ambiental y Derechos Humanos

Ibero Ciencias - Revista Científica y Académica - ISSN 3072-7197
This paper examines the concept of human vulnerability within the context of the current environmental crisis, with particular attention to older adults as one of the population groups most exposed to the differentiated effects of climate change and extreme events. The study adopts a multidimensional understanding of vulnerability, in which natural and
Karla Elizabeth Mariscal Ureta, Geovani Ernesto Martínez Nieves   +1 more
openaire   +1 more source

Receptor‐Free Identification of Toxic Gases Enabled by Hygroscopic Aqueous Salt Films

Advanced Functional Materials, EarlyView.
Water as a gas sensor coating sounds impossible—until it stops evaporating. Here, hygroscopic salt solutions (LiCl, LiBr, H3PO4) form non‐drying aqueous films on CNT chemiresistors under ambient air. Gases partition into these liquid layers, sometimes transforming into water, and generate salt‐specific resistance fingerprints across a four‐channel ...
Seongwoo Lee, Yun‐Tae Kim, Hwarang Choi, Sanghwan Park, Seongyeop Lim, Chang Young Lee   +5 more
wiley   +1 more source

Regulated Ion‐Diffusion Hydrogels for Subtle and Multimodal Temperature‐Strain Sensing in Wound Monitoring

Advanced Functional Materials, EarlyView.
A soft, dual‐channel hydrogel patch enables simultaneous detection of wound temperature and strain by integrating ion‐diffusion‐mediated thermoelectric and resistive sensing. The conformal design maintains stable performance during motion, capturing subtle inflammatory and mechanical changes for continuous wound monitoring.
Yu Fang, Xinglong Pan, Zhiwei Li, Wanheng Lu, Chang Liu, Yi Zhou, Guo Tian, Ghim Wei Ho   +7 more
wiley   +1 more source

(In)certezas sobre la crisis ambiental (Un)certainties on the environmental crisis

Ambiente & Sociedade, 2001
A maioria dos artigos e livros sobre a questão ambiental parte da existência de uma série de problemas ambientais no nível global sem colocar as incertezas que tal informação apresenta. Neste artigo consideramos os dois principais problemas ambientais de escala planetária, o câmbio climático e a perda da biodiversidade.
Humberto Tommasino, Guillermo Foladori
openaire   +1 more source

REFLEXIÓN SOBRE LA CRISIS AMBIENTAL CONTEMPORÁNEA

, 2023
La crisis ambiental es un problema global que requiere una acción colectiva para abordarlo. Se han establecido tratados internacionales para promover la protección y la sostenibilidad del medio ambiente. Sin embargo, se ha cuestionado la eficacia de estos tratados para abordar cuestiones ambientales en América Latina.
openaire   +1 more source

Chemical State Detection and Charge Transfer in Complex Oxide Heterostructures via In Situ Auger Electron Spectroscopy

Advanced Functional Materials, EarlyView.
In situ Auger Electron Spectroscopy resolves oxidation states with high fidelity during the pulsed laser deposition of multivalent perovskite manganate and vanadate heterostructures. The chemical‐state signature is carried by the valence‐electron population of the transition‐metal cation, read out through the relative intensities of Auger fine ...
Harish Kumarasubramanian, Jayakanth Ravichandran   +1 more
wiley   +1 more source

Políticas públicas - Poéticas públicas: antropocentrías descentradas y derivas del extractivismo con respecto a la acción humana

Novum, 2021
Objetivo: El presente artículo establece relaciones entre Políticas públicas en la forma de formulaciones de la planeación del estado nación moderno, y la posibilidad de ser transformadas en poéticas, a la luz del diseño de transición y las diversas ...
Julián Andrés Cardona Romero
doaj  

X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites

Advanced Functional Materials, EarlyView.
We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim, Gayoung Seo, Seong Yeon Park, Juwon Jang, Yunho Ahn, Samiksha Mukesh Jain, Samrat Das Adhikari, Harumi Correa‐Leiva, Ignacio Utreras‐Asenjo, Oscar A. Douglas‐Gallardo, Carina Pareja‐Rivera, Kayoung Cho, Byeongsung Kim, Jhonatan Rodriguez‐Pereira, Eunseo Choi, JaeHong Park, Jin Ho Bang, Danilo H. Jara‐Quinteros, Sixto Giménez, Seog Joon Yoon, Andrés F. Gualdrón‐Reyes, Iván Mora‐Seró   +21 more
wiley   +1 more source