Results 31 to 40 of about 38,114 (261)

Regional projection of climate warming effects on coastal seas in east China

open access: yesEnvironmental Research Letters, 2022
The coastal region in east China experiences massive anthropogenic eutrophication, and the bottom water off the Changjiang River Estuary in the East China Sea faces the threat of severe seasonal hypoxia. We find that projected future climate changes will
Wenxia Zhang   +3 more
doaj   +1 more source

Biocrude production by hydrothermal liquefaction of olive residue [PDF]

open access: yes, 2016
Hydrothermal liquefaction (HTL) converts biomass into a crude bio-oil by thermally and hydrolytically decomposing the biomacromolecules into smaller compounds.
DE CAPRARIIS, Benedetta   +4 more
core   +1 more source

The bifunctional enzyme, GenB4, catalyzes the last step of gentamicin 3′,4′-di-deoxygenation via reduction and transamination activities

open access: yesMicrobial Cell Factories, 2020
Background New semi-synthetic aminoglycoside antibiotics generally use chemical modifications to avoid inactivity from pathogens. One of the most used modifications is 3′,4′-di-deoxygenation, which imitates the structure of gentamicin.
Xiaotang Chen   +7 more
doaj   +1 more source

2II-VII, 3I-VII, 6I-VII-Icosa-O-acetyl-2I-deoxy-cyclomaltoheptaose

open access: yesMolbank, 2016
Deoxygenation of a secondary hydroxy group on β-cyclodextrin was conducted to prepare the title compound 2II-VII, 3I-VII, 6I-VII-icosa-O-acetyl-2I-deoxy-cyclomaltoheptaose.
Atsushi Miyagawa   +3 more
doaj   +1 more source

Intracellular oxygen tension limits muscle contraction-induced change in muscle oxygen consumption under hypoxic conditions during Hb-free perfusion. [PDF]

open access: yes, 2017
Under acute hypoxic conditions, the muscle oxygen uptake (mV˙O2) during exercise is reduced by the restriction in oxygen-supplied volume to the mitochondria within the peripheral tissue. This suggests the existence of a factor restricting the mV˙O2 under
Furuichi, Yasuro   +7 more
core   +1 more source

Efficient Conversion of Lignin to Aromatics via Catalytic Fast Pyrolysis over Niobium-Doped HZSM-5

open access: yesMolecules, 2023
A niobium-doped HZSM-5 (H[Nb]ZSM-5) was prepared by a hydrothermal synthesis method. The morphology, phase structure, composition, pore structure, and acid content of the catalyst were characterized using a series of analysis techniques such as scanning ...
Zhen Li   +5 more
doaj   +1 more source

Different patterns of cerebral and muscular tissue oxygenation 10 years after coarctation repair [PDF]

open access: yes, 2019
The purpose of this study was to assess whether the lower exercise tolerance in children after coarctation repair is associated with alterations in peripheral tissue oxygenation during exercise.
Boone, Jan   +9 more
core   +2 more sources

Could Artificial Downwelling/Upwelling Mitigate Oceanic Deoxygenation in Western Subarctic North Pacific?

open access: yesFrontiers in Marine Science, 2021
Subpolar gyre regions such as the Western Subarctic North Pacific (WSNP) contain sluggish, low-oxygen water, and are threatened by loss of oxygen (deoxygenation).
Canbo Xiao   +6 more
doaj   +1 more source

The effects of changing climate on faunal depth distributions determine winners and losers

open access: yes, 2014
Changing climate is predicted to impact all depths of the global oceans, yet projections of range shifts in marine faunal distributions in response to changing climate seldom evaluate potential shifts in depth distribution.
Airriess   +59 more
core   +1 more source

CO2 Hydrogenation to Formate and Formic Acid by Bimetallic Palladium-Copper Hydride Clusters. [PDF]

open access: yes, 2020
Mass spectrometric analysis of the anionic products of interaction between bimetallic palladium-copper tetrahydride anions, PdCuH4-, and carbon dioxide, CO2, in a reaction cell shows an efficient generation of the PdCuCO2H4- intermediate and formate ...
Alexandrova, Anastassia N   +7 more
core   +1 more source

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