Results 91 to 100 of about 149 (142)

Stochastic Hydrodynamic Velocity Field and the Representation of Langevin Equations

Annalen der Physik, EarlyView.
A lumped method is proposed to account for both mean‐field hydrodynamics and stochastic fluctuations within the kinematic equations of motion, providing a regularized formulation of the overdamped approximation. The concept of stochastic realizability in broad sense is introduced based on the spectral properties of the Fredholm operator associated with
Massimiliano Giona, Davide Cocco, Giuseppe Procopio   +2 more
wiley   +1 more source

Nitrate Reduction for Deaminative Suzuki–Miyaura Coupling of Anilines

Angewandte Chemie, EarlyView.
We present a one‐step deaminative Suzuki–Miyaura‐type coupling of anilines via fleeting diazonium intermediate with nitrate and bisulfite as the reagents. This represents the first application of the nitrate reduction strategy in transition metal catalysis of diazonium chemistry.
Chen‐Chen Li, Áron Adorján, Manolis Sofiadis, Tim Schulte, Javier Mateos, Mike Rippegarten, Tobias Ritter   +6 more
wiley   +2 more sources

Site‐Selective Carbonylation of Azetidines via Copper‐Catalyzed Difluorocarbene Insertion

Angewandte Chemie, EarlyView.
We disclose a site‐selective Cu‐catalyzed carbonylation of azetidines promoted by difluorocarbene insertion at low temperature, enabling access to a variety of functionalized γ‐lactams and a therapeutic agent for diabetes (40 examples). This skeletal expansion strategy provides a distinct disconnection approach to synthesize medicinally relevant five ...
Fang Zhou, Tong‐De Tan, Ming Joo Koh
wiley   +2 more sources

A Bench‐Stable Fluorophosphine Nickel(0) Complex and Its Catalytic Application

Angewandte Chemie, EarlyView.
We herein present the synthesis of a bench‐stable Ni(0) complex, [Ni(PFPh2)4], stabilized by vastly underexplored fluorophosphine ligands. The application of [Ni(PFPh2)4] in Suzuki–Miyaura and Kumada‐Tamao‐Corriu cross‐coupling reactions as well as in Buchwald–Hartwig C─N bond formation reactions, indicates its promising potential as alternative to ...
Franziska Flecken, Arjun Neyyathala, Toni Grell, Schirin Hanf   +3 more
wiley   +2 more sources

Asymmetric Coordination in Cobalt Single‐Atom Catalysts Enables Fast Charge Dynamics and Hierarchical Active Sites for Two‐Stage Kinetics in Photodegradation of Organic Pollutants

Angewandte Chemie, EarlyView.
This investigation demonstrates an efficient synthetic methodology for the fabrication of atomically dispersed cobalt species anchored on carbon nitride substrate, featuring distinctive asymmetric Co─C2N3 coordination environments and hierarchical active sites.
Xiaoming Liu, Yang Zhang, Puhua Sun, Fengting He, Yuzhao Wu, Shuaijun Wang, Shaobin Wang, Jinqiang Zhang   +7 more
wiley   +2 more sources

Decoding Double Layer Dynamics for CO2 Electroreduction over Cu

Angewandte Chemie International Edition, Accepted Article.
Understanding of the nature and role of the electric double layer (EDL) at electrocatalytic interfaces is critical to optimizing electrochemical processes such as the carbon dioxide reduction reaction (CO2RR). Despite its postulated influence on CO2RR activity, direct spectroscopic evidence of the complex interplay between EDL structure and reaction ...
Daniel Sinausia, Noam Zisser, Thierry Killian Slot, David Eisenberg, Florian Meirer, Charlotte Vogt   +5 more
wiley   +1 more source

Poison

JAMA: The Journal of the American Medical Association, 1994
openaire   +2 more sources

Origin of Room Temperature Methanol Synthesis over hcp‐PdMo

Angewandte Chemie International Edition, Accepted Article.
The hydrogenation of CO2 to methanol has garnered significant interest with respect to the reduction of carbon emissions; however, the high temperatures and pressures typically required diminish the benefits of this approach. In this study, we report a hexagonal close‐packed (hcp)‐PdMo catalyst that exhibits the highest room temperature catalytic ...
Feilong Xing, Ruopeng Wang, Shiyao Wang, Hironobu Sugiyama, Chenyang Zhu, Masayoshi Miyazaki, Hideo Hosono, Masaaki Kitano   +7 more
wiley   +1 more source

Dental fluorosis in the European roe deer (Capreolus capreolus): A review of the pathological changes in the enamel of fluorotic cheek teeth and the abnormal pattern of dental wear in affected dentitions

The Anatomical Record, EarlyView.
Abstract This article reviews the pathological changes in the enamel of permanent mandibular cheek teeth and their sequelae in European roe deer from regions polluted by anthropogenic fluoride emissions. The primary (developmental) changes of fluorotic roe deer enamel are hypomineralization and microstructural aberrations, including enamel hypoplasia ...
Uwe Kierdorf, Horst Kierdorf
wiley   +1 more source

Determination of selenium speciation in the muscle, kidney, and liver from different animals treated with different selenium supplements by HPLC‐ICP‐MS

Animal Research and One Health, EarlyView.
Dietary selenium (Se) deficiency is recognized as a global problem, and exogenous Se supplementation can effectively enrich its levels in animal bodies. Offal tissues are equally important as meat in Se enrichment. Varying properties among Se species require information beyond total Se concentration to fully evaluate health risk/benefits.
Xiaoqing Guo, Xueting Jia, Kai Zhang, Chaohua Tang, Xueyang Si, Bo He, Manus Carey, Lynda S. Perkins, Qingyu Zhao, Junmin Zhang   +9 more
wiley   +1 more source