Results 111 to 120 of about 38,233 (200)

HP1 reshapes nucleosome core to promote phase separation of heterochromatin [PDF]

open access: yes, 2019
Heterochromatin affects genome function at many levels. It enables heritable gene repression, maintains chromosome integrity and provides mechanical rigidity to the nucleus1,2.
Burlingame, AL   +8 more
core  

Tuning hydrogen adsorption on graphene by gate voltage

open access: yes, 2018
In order to realize applications of hydrogen-adsorbed graphene, a main issue is how to control hydrogen adsorption/desorption at room temperature. In this study, we demonstrate the possibility to tune hydrogen adsorption on graphene by applying a gate ...
Calzolari, Arrigo   +2 more
core   +2 more sources

Observation of Kinetic Isotope Effect in Electrocatalysis with Fully Deuterated Ultrapure Electrolytes

open access: yes, 2019
Kinetic isotope effect (KIE) is a common physicochemical effect to elucidate complicated microscopic reaction mechanism in biological, chemical and physical systems.
Sakaushi, Ken
core   +1 more source

Experimental realization of catalytic CH_4 hydroxylation predicted for an iridium NNC pincer complex, demonstrating thermal, protic, and oxidant stability [PDF]

open access: yes, 2009
A discrete, air, protic, and thermally stable (NNC)Ir(III) pincer complex was synthesized that catalytically activates the CH bond of methane in trifluoroacetic acid; functionalization using NaIO_4 and KIO_3 gives the oxy ...
Ess, Daniel H.   +6 more
core   +1 more source

Low‐Carbohydrate Diet Exacerbates Denervation‐Induced Atrophy of Rat Skeletal Muscle Under the Condition of Identical Protein Intake

open access: yesJournal of Cachexia, Sarcopenia and Muscle
Background While decreased protein intake is associated with muscle mass loss, it is unclear whether a decrease in carbohydrate intake adversely affects muscle atrophy independently of protein intake.
Aki Yokogawa   +9 more
doaj   +1 more source

“Dead Lithium” Formation and Mitigation Strategies in Anode‐Free Li‐Metal Batteries

open access: yesBatteries &Supercaps, Volume 8, Issue 3, March 2025.
Anode‐free lithium metal batteries, though promising due to their high energy density, face challenges from dead lithium formation. “Dead lithium”, disconnected from the anode, causes capacity loss, increased resistance, and safety risks. This review explores the origins of dead lithium, its impact on battery performance, and potential strategies for ...
Mozaffar Abdollahifar, Andrea Paolella
wiley   +1 more source

Biomass‐Coupled HER System: A Strategy for Sustainable and Low‐Cost Hydrogen Production

open access: yesCarbon Energy, EarlyView.
Pine wood is carbonized into a hierarchically porous biochar anode that undergoes carbon oxidation reaction, replacing the oxygen evolution reaction in alkaline water electrolysis. The resulting biomass‐coupled HER system converts water into hydrogen at low cell voltages, enabling low‐cost H2 production from renewable carbon resources. ABSTRACT Biomass‐
Yuming Huang   +10 more
wiley   +1 more source

Divergent Molecular Responses to Heavy Water in Arabidopsis thaliana Compared to Bacteria and Yeast

open access: yesPlants
Heavy water (D2O) is scarce in nature, and despite its physical similarity to water, D2O disrupts cellular function due to the isotope effect. While microbes can survive in nearly pure D2O, eukaryotes such as Arabidopsis thaliana are more sensitive and ...
Pengxi Wang   +4 more
doaj   +1 more source

Arene Incorporation and Ring Expansion in the Thermal Decomposition of a Divanadium(III) Complex With Four Bridging Methyl Groups

open access: yesChemistry – A European Journal, EarlyView.
Thermolysis of [{VCp*(µ‐CH3)2}2] (Cp* = η5‐C5Me5) in hexane leads to a tetranuclear cube‐type methylidene complex [{VCp*(µ3‐CH2)}4], while in benzenic solvents C6H5R produces the formal insertion of a CH fragment into the six‐membered aromatic ring of a solvent molecule to give trovacene derivatives with η7‐cycloheptatrienyl ligands [VCp*(η7‐C7H6R ...
Adrián Calvo‐Molina   +5 more
wiley   +1 more source

Generation of a Ground‐State Electron Donor Utilizing Stored Light Energy

open access: yesChemistry – A European Journal, EarlyView.
Chemically stored light energy enables the generation of dianion reductants (∼−2.7 V) from vicinal diols derived from diaryl ketone photodimerization. These ground‐state electron donors efficiently reduce challenging substrates at room temperature, including aryl bromides, alkyl iodides, and sulfonamides.
Marc Taillefer   +2 more
wiley   +1 more source

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