Results 31 to 40 of about 113,231 (329)

Hydrometallurgical Treatment of Waste Printed Circuit Boards: Bromine Leaching

open access: yesMetals, 2020
This paper demonstrates the recovery of valuable metals from shredded Waste Printed Circuit Boards (WPCBs) by bromine leaching. Effects of sodium bromide concentration, bromine concentration, leaching time and inorganic acids were investigated.
Hao Cui, Corby Anderson
doaj   +1 more source

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

open access: yesEarth 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   +9 more
doaj   +1 more source

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

open access: yesChemistryOpen, 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   +11 more
doaj   +1 more source

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

open access: yesNanomaterials, 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   +5 more
doaj   +1 more source

Ab initio calculations for bromine adlayers on the Ag(100) and Au(100) surfaces: the c(2x2) structure

open access: yes, 2002
Ab initio total-energy density-functional methods with supercell models have been employed to calculate the c(2x2) structure of the Br-adsorbed Ag(100) and Au(100) surfaces.
A. Cuesta   +55 more
core   +1 more source

Very short-lived bromomethanes measured by the CARIBIC observatory over the North Atlantic, Africa and Southeast Asia during 2009-2013 [PDF]

open access: yes, 2013
Short-lived organic brominated compounds make up a significant part of the organic bromine budget in the atmosphere. Emissions of these compounds are highly variable and there are limited measurements, particularly in the extra-tropical upper troposphere/
Brenninkmeijer, C.A.M.   +6 more
core   +2 more sources

Photo-Responsive Brominated Hydrogen-Bonded Liquid Crystals

open access: yesCrystals
This study reports on the preparation and comprehensive characterisation of new brominated hydrogen-bonded liquid crystalline (HBLC) materials. Two distinct series of supramolecular complexes were prepared by hydrogen-bond formation between 3-bromo-4 ...
Christian Anders   +3 more
doaj   +1 more source

Modelling the Inorganic Bromine Partitioning in the Tropical Tropopause over the Pacific Ocean [PDF]

open access: yes, 2016
The stratospheric inorganic bromine burden (Bry) arising from the degradation of brominated very short-lived organic substances (VSL org ), and its partitioning between reactive and reservoir species, is needed for a comprehensive assessment of the ozone
Atlas, Elliot   +13 more
core   +1 more source

A high-resolution infrared spectroscopic investigation of the halogen atom-HCN entrance channel complexes solvated in superfluid helium droplets [PDF]

open access: yes, 2006
Rotationally resolved infrared spectra are reported for the X-HCN (X = Cl, Br, I) binary complexes solvated in helium nanodroplets. These results are directly compared with that obtained previously for the corresponding X-HF complexes [J. M.
Balakrishnan   +85 more
core   +3 more sources

Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway

open access: yesMolecular Oncology, EarlyView.
Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed   +10 more
wiley   +1 more source

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