Results 131 to 140 of about 432,880 (298)

Cobalt‐Catalyzed Asymmetric Construction of Boron Stereocenters With C–N Axial Chirality

Advanced Science, EarlyView.
A cobalt/Salox‐catalyzed one‐pot annulation enables enantioselective formation of B‐stereogenic centers and C─N axial chirality via C─H/N─H annulation, affording diverse fluorescent products with high stereocontrol and optoelectronic potential. ABSTRACT The efficient construction of boron stereogenic centers alongside axial chirality remains a ...
Subramani Kumaran, Harihara Subramanian Ravi Sankar, Pritam Maity, J. Richard Premkumar, Abir Das, Basker Sundararaju   +5 more
wiley   +1 more source

El Niño Intensified Fog Formation in the Namib Desert

Earth's Future
Despite the importance of fog as a supplementary moisture source in many dryland ecosystems, little is known about the effects of global climate change and natural climate variability on fog regimes.
Yue Li, Lixin Wang, Carlynn J. Diersing, Na Qiao, Yi Liu, Gillian Maggs‐Kölling, Eugene Marais   +6 more
doaj   +1 more source

Dipolar Coupling Errors in Nuclear Spin Qubits

Advanced Science, EarlyView.
Multi‐nuclear spin registers of phosphorus‐atom qubits in silicon have demonstrated 99.99% single and >$>$99.9% two qubit gate fidelities. Despite nanometer separation, read‐out fidelities between individual nuclear spins within the register are not identical.
I. D. Thorvaldson, P. Macha, J. Reiner, S. H. Misha, Y. Chung, L. Kranz, D. Keith, S. Monir, D. Poulos, S. Sutherland, Y.‐L. Hsueh, B. Thorgrimsson, R. Rahman, J. G. Keizer, S. K. Gorman, M. Y. Simmons   +15 more
wiley   +1 more source

Where Typhoeus lived: 87Sr/86Sr analysis of human remains in the first Greek site in the Western Mediterranean, Pithekoussai, Italy

iScience
Summary: The archaeological heritage of Pithekoussai offers a unique insight into the dynamics of human mobility and biocultural interactions at the dawn of the Magna Graecia during the Iron Age Mediterranean.
Melania Gigante, Carmen Esposito, Federico Lugli, Alessandra Sperduti, Teresa Elena Cinquantaquattro, Bruno d’Agostino, Alessia Nava, Wolfgang Müller, Luca Bondioli   +8 more
doaj   +1 more source

Stabilising the Lattice Oxygen Oxidation Mechanism Through Iridium Single Atoms in Chromium‐Doped Cobalt Iron Layered Double Hydroxides

Advanced Science, EarlyView.
Iridium single atoms and Cr doping synergistically activate and stabilise the lattice oxygen oxidation mechanism in CoFe layered double hydroxides. Electronic modulation enhances metal–oxygen covalency, suppresses over‐oxidation, and enables durable oxygen evolution, delivering high‐performance anion exchange membrane water electrolysis with ...
Parisa Eskandari, Shujie Zhou, Jodie Yuwono, Yufei Zhao, Hanyu Xu, Zhihong Tian, Jingwen Ba, Ming Zhang, Bernt Johannessen, Thanh Son Bui, Richard F. Webster, Jing Chu, Xunyu Lu, Rose Amal   +13 more
wiley   +1 more source

Data for Experimental constraints on stable potassium (K) isotope fractionation during phase separation in NaCl–KCl–H2O and KCl–H2O systems: implications for the K isotope composition of seafloor hydrothermal vent fluids

Table data in .xlsx format includes four worksheets, one for each table.Potassium isotope data from hydrothermal phase separation experimentsNSF Award number: 2238685Charin, Soisiri; Evans, Guy; Chen, Xinyang; Xing, Yanlu; Chen, Tianyu; Seyfried, William;
Seyfried, William, Charin, Soisiri, Chen, Xinyang, Zheng, Xinyuan, Evans, Guy, Xing, Yanlu, Chen, Tianyu   +6 more
core   +1 more source

Bioinspired Porphyrin‐Based Catalysts From Temporospatial Confined Frameworks for Ultrafast Removal of Sulfaclozine

Advanced Science, EarlyView.
We report the rational design of artificial photocatalysts with asymmetrically coordinated dual‐metal centers and a tailored microenvironment, broadly applicable strategy is established for the synthesis of multivariate zirconium‐based metal–organic frameworks, offering a platform for precisely tuning active‐site configurations to optimize ...
Yuxin Lu, Yu‐Hang Li, Zhiyi Sun, Fanke Tong, Zelin Li, Sheng Wang, Shangkun Pei, Yi Li, Xiyan Xu, Chong‐Chen Wang, Bo Wang, Xiang Li   +11 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  

Investigations of the Evolved Molecular Basis for Terpenoid Biosynthesis in Marine Sponges

Advanced Science, EarlyView.
Confirming and extending a previous observation in another Bubarida sponge, genomic and functional analyses of A. cavernosa reveal that sponges retain the mevalonate pathway and employ single α‐domain T1TSs and UbiA‐type TSs for terpenoid biosynthesis. The absence of T1TSs clustering with other biosynthetic genes tentatively suggests, based on limited ...
Fangyan Chen, Bao Chen, Wenhui Zhang, Guifang Sun, Yao Zhao, Jianpeng Zhang, Baofu Xu   +6 more
wiley   +1 more source

Minimal Transport Units Govern Oxygen‐Defect Stabilization and Transport for Lightweight Solid Electrolytes

Advanced Science, EarlyView.
Lightweight borate chemistry combined with minimal transport units provides a new pathway for designing lightweight oxide‐ion solid electrolytes. ABSTRACT Solid electrolytes are central to electrochemical energy technologies, including fuel cells, sensors, catalysis, membrane separation, and electrolyser.
Xiaohui Li, Yongkang Zheng, Li Yang, Xiaoge Wang, Yuan Gou, Guanqun Cai, Jie Liu, Cheng Li, Kun Lin, Qiang Li, Mingxue Tang, Junliang Sun, Xianran Xing, Xiaojun Kuang   +13 more
wiley   +1 more source