Results 31 to 40 of about 3,247 (218)

Robust Electrocaloric Performance Enabled by Highly‐Polar Frustrated Nanodomains in NaNbO3‐Based Ferrodistortive Relaxor

open access: yesAdvanced Functional Materials, EarlyView.
P4bm framework in NaNbO3‐Ba(Ti, Hf)O3 ferrodistortive relaxor entails short‐range and highly‐polar ferrodistortive orders. The abundant highly‐polar orders facilitate to increase entropy change, and robust octahedral oxygen tilt enables to impede thermal perturbations.
Feng Li   +11 more
wiley   +1 more source

Nanostructured Conductive Polypyrrole for Antibacterial Components in Flexible Wearable Devices

open access: yesResearch, 2023
The power generated by flexible wearable devices (FWDs) is normally insufficient to eradicate bacteria, and many conventional antibacterial strategies are also not suitable for flexible and wearable applications because of the strict mechanical and ...
Yuzheng Wu   +14 more
doaj   +1 more source

Engineering Local Polar Frustration in Lead‐Free Dielectric Ceramics for Ultrahigh Normalized Energy Storage Performance

open access: yesAdvanced Functional Materials, EarlyView.
Local polar frustration is engineered to stabilize an ergodic relaxer through nanoscale multiphase coexistence, suppressing long‐range ferroelectric order while preserving high polarization. This strategy delivers ultrahigh low‐field normalized energy density (Wa >0.020 mC cm−2), exceptional thermal stability, and a transferable design principle for ...
Hareem Zubairi   +9 more
wiley   +1 more source

Adaptación transcultural y validación de tres scores para la detección de riesgo de desnutrición pediátrica durante la hospitalización (PNRS, STAMP y STRONGkids). Estimación de la incidencia de desnutrición en nuestro medio [PDF]

open access: yes, 2023
Introducción: La desnutrición en la población infantil hospitalizada, varía entre el 6% y el 32%, siendo la incidencia de pérdida de más del 2% de peso variable, entre 13,15% y 53,05%.
Balaguer López, Evelin
core  

Análise Comparativa e Aplicabilidade das Normas e Legislações Correlatas à Lei 12.305/10 – Política Nacional de Resíduos Sólidos (PNRS)

open access: yes, 2023
A geração de resíduos pelos seres humanos sempre ocorreu, mas intensificou-se após a Revolução Industrial, com o aumento da produção e com o crescimento acelerado das cidades.
Bonaretto, Cinthia Mara Vital   +13 more
core   +1 more source

Production and comparison of mature single-domain ‘trefoil’ peptides pNR-2/pS2 Cys58 and pNR-2/pS2 Ser58 [PDF]

open access: yesBiochemical Journal, 1995
The preparation and purification of recombinant mature pNR-2/pS2, a single-domain member of the ‘trefoil’ family of cysteine-rich secreted proteins, is described. Analysis of recombinant pNR-2/pS2 by ion-exchange chromatography showed that it was heterogeneous.
Chadwick MP, May FEB, Westley BR
openaire   +2 more sources

Enhanced Magnetism in Cation‐Modulated Manganite Heterostructures

open access: yesAdvanced Materials Interfaces, EarlyView.
Magnetic contrast is introduced within a single manganite system via a small modulation of the cation ratio. Enhanced magnetization occurs in superlattices with small stoichiometric differences. The combined SQUID, polarized neutron reflectometry, and x‐ray absorption spectroscopy results are consistent with the interfacial electronic reconstruction ...
Sangkyun Ryu   +7 more
wiley   +1 more source

Polymorphic Superparaelectric Engineering Boosting Energy Storage Capacity in BaTiO3‐Based Ceramics

open access: yesAdvanced Science, EarlyView.
Herein, Ca2+ incorporation promotes the coexistence of CaTiO3‐/BaTiO3‐derived paraferroelectric states, stabilizing cubic‐orthorhombic‐tetragonal polymorphic superparaelectric phases. This minimizes polarization energy barriers, facilitating full polarization saturation without compromising efficiency.
Pan Liu   +9 more
wiley   +1 more source

LIXÃO DO AURÁ EM BELÉM-PA E A POLÍTICA NACIONAL DE RESÍDUOS SÓLIDOS: TRATAMENTO JURÍDICO DADO AOS CATADORES

open access: yesRevista Eletrônica Direito e Política, 2015
A Política Nacional de Resíduos Sólidos (PNRS), normatizada pela Lei nº 12.305/2010 e regulamentada pelo Decreto nº 7.404/2010, instituiu diversas incumbências aos gestores públicos dentre elas a de inserir os catadores de resíduos sólidos nesse ...
Glauber De Souza Dantas   +2 more
doaj   +1 more source

Catadores de materiais recicláveis: Uma revisão integrativa da literatura

open access: yesDesenvolvimento em Questão, 2023
O objetivo é identificar, através da revisão integrativa, as principais categorias temáticas que envolvem a trajetória de vida dos catadores de materiais recicláveis, debatidas pela literatura, a partir da criação da Política Nacional de Resíduos ...
Rosane Villanova Borges   +2 more
doaj   +1 more source

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