Results 51 to 60 of about 885,150 (312)

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

On the Effects of Active Energy Community Participation in the Energy System

open access: yes2022 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe), 2022
This paper explores the effects of active energy communities, as defined by EU Directive 2019/944, on the energy system using simulations modelled based on a real-world ecological community. The energy flexibility of this community is optimized towards the objectives peak reduction, cost minimization, and CO2 emission minimization.
Gerwin Hoogsteen   +6 more
openaire   +1 more source

Activation Energy of Hydrogen–Methane Mixtures

open access: yesFire
In this work, the overall activation energy of the combustion of lean hydrogen–methane–air mixtures (equivalence ratio φ = 0.7−1.0 and hydrogen fraction in methane α=0, 2, 4) is experimentally determined using thin-filament pyrometry of flames stabilised
Anastasia Moroshkina   +6 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Physical activity and energy balance [PDF]

open access: yesPublic Health Nutrition, 1999
AbstractEnergy expenditure rises above resting energy expenditure when physical activity is performed. The activity-induced energy expenditure varies with the muscle mass involved and the intensity at which the activity is performed: it ranges between 2 and 18 METs approximately.
openaire   +2 more sources

The high temperature conductivity of magnetite ore as the possible basis for predicting the mineral composition and the genetic peculiarities of the deposits

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2015
The rock samples from different structural-material complexes of some ultramafic massifs of the Urals have been investigated. The experiments have allowed establishinga dependence of electrical resistance on temperature in the range of 20-800 °C.
V. V. Bakhterev
doaj   +1 more source

Influence of Nanoconfinement on the Hydrogen Release Processes from Sodium Alanate

open access: yesReactions, 2021
Sodium alanate (NaAlH4) is a prospective H2 storage material for stationary and mobile applications, as NaAlH4 contains 7.4 wt% of H2, and it is possible to do multiple H2 release and accumulation cycles.
Kenneth Tuul, Rasmus Palm
doaj   +1 more source

Typical diffusion behaviour in packaging polymers - Application to functional barriers

open access: yes, 2006
When plastics are collected for recycling, possibly contaminated articles might be recycled into food packaging, and thus the contaminants might subsequently migrate into the food.
Saillard, P   +29 more
core   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

open access: yesFEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Activation Energies of Plasmonic Catalysts

open access: yesNano Letters, 2016
The activation energy of a catalytic reaction serves not only as a metric of the efficacy of a catalyst but also as a potential indicator of mechanistic differences between the catalytic and noncatalytic reaction. However, activation energies are quite underutilized in the field of photocatalysis.
Youngsoo, Kim   +2 more
openaire   +2 more sources

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