Results 61 to 70 of about 22,354,229 (295)

Atom Probe Tomography as an Emerging Tool for Understanding Defect‑Driven Mechanisms in HfO2‑Based Ferroelectrics

Advanced Functional Materials, EarlyView.
This Perspective highlights atom probe tomography as a powerful tool for understanding the atomic‐scale defect chemistry in HfO2‐based ferroelectrics. 3D mapping of dopants, point defects, and interface chemistry can provide new insight into defect‐driven mechanisms underpinning the ferroelectricity in the system and guide the design of more reliable ...
Kasper Hunnestad, Catherine Dubourdieu, Alexei Gruverman, Dennis Meier   +3 more
wiley   +1 more source

Sulfur‐Free Ultrahigh‐Refractive‐Index Polymers Enabled by Densely Packed Oxygen‐Bridged Dibenzofuran‐Cardo Architectures

Advanced Functional Materials, EarlyView.
A new class of sulfur‐free, oxygen‐bridged dibenzofuran‐based polymers is developed for ultrahigh‐refractive‐index applications. The rigid π‐extended architecture and enhanced molecular polarizability enable exceptional optical performance, combining refractive indices up to 1.848 with high Abbe numbers and full visible transparency. This work offers a
Hend A. Hegazy, Gyeongsoo Kim, Sooyoung Lee, Mohamed R. Elmasry, Youn‐Chul Kim, Changsik Song   +5 more
wiley   +1 more source

Mechanical Programming of PEGDA‐β‐CD Polyrotaxane‐Based Hydrogels via Host–Guest Molecular Recognition

Advanced Functional Materials, EarlyView.
A mechanically programmable hydrogel for tissue engineering is developed by modulating the molecular threading density of poly(ethylene glycol) diacrylate‐β‐cyclodextrin (PEGDA‐β‐CD) polyrotaxane and combining it with β‐CD‐modified gelatin. The polyrotaxane‐guided transition from disordered pores to laminar microstructures enables precise tuning ...
Shiyi Chen, Xudan Xing, Haopu Su, Dominik Voll, Xiaohe Xu, Jiafeng Wan, Tongtong Cui, Christian W. Schmitt, Stefan Bräse, Peng Li, Patrick Théato   +10 more
wiley   +1 more source

Las prácticas funerarias de los inicios de la Edad del Bronce en los páramos del noroeste de Burgos (España): El túmulo posdolménico de Arroyo de las Vegas en Sargentes de la Lora [PDF]

Munibe Antropologia-Arkeologia
Se presentan los resultados de la excavación y estudio de materiales del túmulo de Arroyo de las Vegas. Este es un yacimiento funerario que viene a rellenar el vacío documental referente al monumentalismo funerario de comienzos del II milenio cal a.C. de
Rodrigo Villalobos García, Angélica Santa Cruz del Barrio, Germán Delibes de Castro, Miguel Á. Moreno Gallo, Javier Basconcillos Arce, Xavier Bayer Rodríguez, Sandra Pastor Paredes, Teresa Fernández-Crespo, Olatz Villanueva Zubizarreta, Carlos P. Odriozola, Ana María Casas-Ferreira, Miguel del Nogal-Sánchez, José Luis Pérez Pavón   +12 more
doaj   +1 more source

Stable isotope dilution techniques for assessing vitamin A status and bioefficacy of provitamin A carotenoids in humans. [PDF]

, 2005
Vitamin A deficiency is a major global public health problem. Among the variety of techniques that are available for assessing human vitamin A status, evaluating the provitamin A nutritional values of foodstuffs and estimating human vitamin A ...
Judy D Ribaya-Mercado, Emorn Wasantwisut, Marjorie Haskell, Sherry Tanumihardjo, Harold C Furr, Wasantwisut, Emorn, Tang, Guangwen, Penelope Nestel, Sam Newton, Guangwen Tang, Haskell, Marjorie, Ribaya-Mercado, Judy D, Najat Mokhtar, Furr, Harold C, Nestel, Penelope, Newton, Sam, Tanumihardjo, Sherry, Green, Michael H, Michael H Green, Mokhtar, Najat   +19 more
core   +1 more source

Water Organization and Hydration‐Dependent Hydroxide Transport in Anion Exchange Membranes (AEM)

Advanced Functional Materials, EarlyView.
Hydroxide transport in anion exchange membranes is governed by the organization of water within the polymer rather than by hydration alone. A hydration‐window framework is presented to unify transport, swelling, and mechanical stability, providing guidance for designing durable membranes for fuel cells and other hydroxide‐based electrochemical ...
Phumlani F. Msomi
wiley   +1 more source

Latest advancements in the application of analytical science to ancient and historical glass production

UISPP Journal, 2019
Major recent developments in the archaeometry of ancient and historical glass production are outlined, and examples of methods which are set to determine the future agenda of glass studies are presented.
Chloë N. Duckworth
doaj   +1 more source

Water sources effects on soil salinity and biomass production of agriculture and agroforest systems in raised fields

Journal of Plant Interactions, 2020
This study investigates the sources of water under four modes, namely, normal fields, Raised Fields, single agriculture in Raised Fields, and agroforest system in Raised Fields, by using a combination of δ18O, δ2H and δ13C and their effects on crop yield
Hengyu Hu, Mengkun Zhang, Min Fu, Jihao Qin, Jiansheng Chen, Yupeng Feng, Geng Li, Mingzhen Zhai, Yin Zhang, Tangyuan Ning   +9 more
doaj   +1 more source

Electrochemical Pathways for Nitrate Conversion to Ammonia: From Environmental Challenges to Ammonia Economy

Advanced Functional Materials, EarlyView.
This perspective presents recent advances in electrocatalytic nitrate reduction, focusing on reaction mechanisms, catalyst design, and electrolyzer configurations. Key challenges in selectivity, stability, and practical wastewater treatment are highlighted, while future directions for advancing sustainable ammonia synthesis and nitrate remediation are ...
Xintong Li, Yunpeng Zuo, Xiaoran Zhang, Jieqiong Shan, Kenneth Mei Yee Leung, Bin Liu, Peter Strasser, Adrian Fisher, Zonglong Zhu, Xin Wang   +9 more
wiley   +1 more source

Multi-proxy bioarchaeological analysis of skeletal remains shows genetic discontinuity in a Medieval Sicilian community

Royal Society Open Science
The medieval period in Sicily was turbulent, involving successive regime changes, from Byzantine (Greek Christian), Aghlabid (Sunni Muslim), Fatimid (Shīʿa Muslim), to Normans and Swabians (Latin Christian). To shed new light on the local implications of
Aurore Monnereau, Alice Ughi, Paola Orecchioni, Richard Hagan, Helen M. Talbot, Efthymia Nikita, Derek Hamilton, Petrus Le Roux, Alessandra Molinari, Martin Carver, Oliver E. Craig, Camilla F. Speller, Michelle M. Alexander, Nathan Wales   +13 more
doaj   +1 more source