Results 31 to 40 of about 76,906 (304)

High‐Resolution Elemental Record From the Holocene Sediments of an Alpine Lake in the Central Altai Mountains: Implications for Arctic Sea‐Ice Variations

Earth and Space Science, 2021
It is well known that Arctic sea ice and Arctic amplification have played an important role in recent climate change in middle to high latitudes of the Northern Hemisphere.
Qing Sun, Andrei Daryin, Jiayu Zhao, Manman Xie, Fedor Darin, Yakov Rakshun, Youliang Su, Haowei Dong, Guoqiang Chu, Shuxian Wang   +9 more
doaj   +1 more source

Halogenation of the N‐Terminus Tyrosine 10 Promotes Supramolecular Stabilization of the Amyloid‐β Sequence 7–12

ChemistryOpen, 2020
Here, we demonstrate that introduction of halogen atoms at the tyrosine 10 phenol ring of the DSGYEV sequence derived from the flexible amyloid‐β N‐terminus, promotes its self‐assembly in the solid state.
Dr. Daniele Maiolo, Dr. Andrea Pizzi, Dr. Alessandro Gori, Dr. Lara Gazzera, Dr. Nicola Demitri, Dr. Alessandro Genoni, Dr. Fulvio Baggi, Dr. Fabio Moda, Prof. Dr. Giancarlo Terraneo, Prof. Dr. Francesca Baldelli Bombelli, Prof. Dr. Pierangelo Metrangolo, Prof. Dr. Giuseppe Resnati   +11 more
doaj   +1 more source

Rapid Carbon Formation from Spontaneous Reaction of Ferrocene and Liquid Bromine at Ambient Conditions

Nanomaterials, 2020
Herein, we present an interesting route to carbon derived from ferrocene without pyrolysis. Specifically, the direct contact of the metallocene with liquid bromine at ambient conditions released rapidly and spontaneously carbon soot, the latter ...
Nikolaos Chalmpes, Iosif Tantis, Aristides Bakandritsos, Athanasios B. Bourlinos, Michael A. Karakassides, Dimitrios Gournis   +5 more
doaj   +1 more source

CEACAM1 participation in breast cancer progression

Molecular Oncology, EarlyView.
In invasive breast cancer (BC), CEACAM1 shifts from an apical to a uniform membranous/cytoplasmic pattern, or is lost, as tumors dedifferentiate, inversely tracking the Ki‐67 proliferative index. In MCF‐7 cells, only CEACAM1‐4L suppresses proliferation, repressing cell cycle and growth factor genes.
Mykola Lyndin, Irina Kube‐Golovin, Anatolii Romaniuk, Gunther Wennemuth   +3 more
wiley   +1 more source

Pressure-Dependent Thermal and Mechanical Behaviour of a Molecular Crystal of Bromine

Molecules
This study investigates the pressure-dependent thermal and mechanical properties of solid bromine through density functional theory (DFT) calculations used in conjunction with the quasi-harmonic approximation (QHA).
Madhavi H. Dalsaniya, Deepak Upadhyay, Paras Patel, Prafulla K. Jha, Krzysztof Jan Kurzydłowski, Dominik Kurzydłowski   +5 more
doaj   +1 more source

Direct detection of atmospheric atomic bromine leading to mercury and ozone depletion

Proceedings of the National Academy of Sciences of the United States of America, 2019
Significance We report atmospheric bromine atom measurements, which quantitatively explain the removal of the ozone and mercury from the near-surface Arctic troposphere. Bromine atoms are proposed to dominate mercury oxidation and its deposition into the
Siyuan Wang, S. M. McNamara, C. Moore, D. Obrist, A. Steffen, P. Shepson, R. Staebler, A. R. W. Raso, K. Pratt   +8 more
semanticscholar   +1 more source

Sex‐Stratified Association of Regional Dopamine Transporter Binding With Disease Progression in Amyotrophic Lateral Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To clarify the clinical relevance of dopamine transporter single‐photon emission computed tomography (DAT‐SPECT) abnormalities in amyotrophic lateral sclerosis (ALS), with a prespecified focus on sex‐stratified associations with disease progression and short‐term prognosis.
Tomoya Kawazoe, Keizo Sugaya, Kentaro Hayashi, Keiko Hino, Yasuhiro Nakata, Kota Bokuda, Toshio Shimizu, Kazushi Takahashi   +7 more
wiley   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

Peroxidasin-mediated bromine enrichment of basement membranes

Proceedings of the National Academy of Sciences of the United States of America, 2020
Significance Bromine is an essential trace element, required for the formation of sulfilimine cross-links in collagen IV, a basement membrane protein. Sulfilimine cross-link formation depends on the production of hypobromous acid by peroxidasin. Once the
Cuiwen He, Wenxin Song, Thomas A. Weston, Caitlyn Tran, I. Kurtz, J. Zuckerman, P. Guagliardo, J. Miner, Sergey V. Ivanov, J. Bougoure, B. Hudson, Selene Colon, P. Voziyan, G. Bhave, L. Fong, S. Young, Haibo Jiang   +16 more
semanticscholar   +1 more source

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

Advanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees, Timothy Harte, Bhagya Dharmasiri, Y. Athulya Wickramasingha, David J. Hayne, Daniel J. Eyckens, Luke C. Henderson   +6 more
wiley   +1 more source