Results 81 to 90 of about 22,354,229 (295)

The Precambrian marine carbonate isotope database: version 1.1. [PDF]

, 2002
We present a compilation of strontium, carbon, and oxygen isotope compositions of roughly 10,000 marine carbonate rocks of Archean - Ordovician age (3800 Ma – 450 Ma).
Shields, GA, Veizer, J, Ján Veizer, Graham Shields, Shields, Graham, Veizer, Ján   +5 more
core   +1 more source

Self‐Assembled Crystalline Peptoid Nanomaterials as Metal‐Free Enzyme Mimics for Enhanced Carbon Dioxide Hydration and Precipitation

Advanced Functional Materials, EarlyView.
Inspired by metal‐free carbonic anhydrases (CAs) that achieve efficient catalysis without metal cofactors, we herein report a sequence‐defined supramolecular peptoid platform that mimics metal‐free CAs and exhibits hydrolytic activity via a supramolecular assembly‐mediated proton‐transfer mechanism.
Progyateg Chakma, Ying Chen, Thi Kim Hoang Trinh, Anthony R. Perez, Jonathan Gil, Maria Casco Hidalgo, Botao Hao, Kyle Whitaker, Chun‐Long Chen   +8 more
wiley   +1 more source

Clan Crypts on the Lower Don of the Early Catacomb Time and Genesis Issues of the Catacomb Rite

Нижневолжский археологический вестник
The article provides comprehensive information about two Middle Bronze Age burials (No. 26, 42) from the kurgan 1 in the burial mound Vesely I near Novocherkassk in the Rostov region. The burials contained double tombs with a complex rite and prestigious
Alexey V. Kiyashko
doaj   +1 more source

Multi-isotope analysis and the reconstruction of prey species palaeomigrations and palaeoecology [PDF]

, 2010
This thesis explores the use of multi-element isotope analysis and intra-tooth sampling to reconstruct prey species ecology and biogeography. Modern caribou (Rangifer tarandus ssp.) and bison (Bison bison) from North America are used to assess the ...
BRITTON, KATE,HELENA
core  

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

Polyphenol‐Inspired Materials for Agricultural Applications

Advanced Materials, EarlyView.
This review outlines the use of polyphenol‐inspired materials for sustainable agriculture, highlighting their molecular design, interfacial assembly, structure–property relationships, and prospects toward precision agriculture, climate resilience, ecosystem protection, and circular bioeconomy strategies.
Haofu Liu, Omid Mazaheri, Zhixing Lin, Tianzheng Wang, Jingqu Chen, Yuang Gu, Xia Liang, Deli Chen, Frank Caruso   +8 more
wiley   +1 more source

Infrared Laser-based Method for Measuring Isotope Ratios [PDF]

, 2005
The purpose of this research is to build an inexpensive, compact, and precise spectrometer that will measure the 13C/12C ratio in a sample of carbon dioxide gas.
Fluellen, Jerry
core  

Tell Sabi Abyad, Syria: An Interpretation of Stable Isotope Values of Faunal Bone Collagen [PDF]

, 2012
At Tell Sabi Abyad, Syria, radiocarbon dating previously provided a robust chronology for the 7th–early 6th millennium BC, the Late Neolithic. The continuous inhabitation spans the 8.2 ka climate event.
Buitenhuis, H., Kaneda, A.,, Akkermans, P.M.M.G.,, Nieuwenhuyse, O.,, Kaneda, A., Nieuwenhuyse, O., Buitenhuis, H.,, van der Plicht, J., Plicht, J. van der,, Russell, A., Russell, A.,, Akkermans, P. M. M. G.   +11 more
core   +1 more source

Active Phase of Nickel Electrocatalysts Driving Alkaline Hydrogen Evolution

Advanced Materials, EarlyView.
Using depth‐resolved and operando spectroscopic measurements coupled with electrochemical mass spectrometry, the authors uncover the critical role of sub‐surface oxidised species in increasing the activity and durability of Ni‐based cathodes for hydrogen evolution.
Yifeng Wang, Eleanor Ender, Santosh Kumar, Cindy Tseng, Guangmeimei Yang, Boxi Ye, Caiwu Liang, Youli Yu, Norton West, Inderjeet Chauhan, Jun H. Ng, Sid Halder, Sang Gu Ji, Georg Held, Mary P. Ryan, Katie L. Moore, Alex S. Walton, Reshma R. Rao   +17 more
wiley   +1 more source

Efficient Hydroxyl Diffusion Triggers Surface Hydronium Enrichment and Bulk Proton Participation to Boost Alkaline Hydrogen‐Evolving Reaction

Advanced Materials, EarlyView.
For the first time, we shed light on the surface‐to‐bulk diffusion, induction, and reaction behaviors of OH−, H+, and H2O species on model oxides for alkaline hydrogen‐evolving reaction (HER). We first demonstrate that bulk OH− diffusion significantly affects the generation of proton sources and the diffusion/reaction behaviors of protons, thus ...
Daqin Guan, Hengyue Xu, Xiao Sun, Leqi Zhao, Chun‐Kuo Peng, Chao Jing, Yu‐Cheng Huang, Jiayi Tang, Nai Shi, Zezhou Lin, Xiaomin Xu, Zhiwei Hu, Zongping Shao   +12 more
wiley   +1 more source