Results 41 to 50 of about 13,731 (260)

Absorbing boundary conditions for the wave equation and parallel computing [PDF]

open access: yesMathematics of Computation, 2004
Absorbing boundary conditions have been developed for various types of problems to truncate infinite domains in order to perform computations. But absorbing boundary conditions have a second, recent and important application: parallel computing. We show that absorbing boundary conditions are essential for a good performance of the Schwarz waveform ...
Martin J. Gander, Laurence Halpern
openaire   +3 more sources

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

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

Accelerating Electromagnetic Field Simulations Based on Memory-Optimized CPML-FDTD with OpenACC

open access: yesApplied Sciences, 2022
Although GPUs can offer higher computing power at low power consumption, their low-level programming can be relatively complex and consume programming time. For this reason, directive-based alternatives such as OpenACC could be used to specify high-level
Diego Padilla-Perez   +3 more
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

Charge-Swapping Q-balls and Their Lifetimes

open access: yesJournal of High Energy Physics, 2021
For scalar theories accommodating spherically symmetric Q-balls, there are also towers of quasi-stable composite Q-balls, called charge swapping Q-balls (CSQs).
Qi-Xin Xie   +2 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Preparation and microwave absorption properties of honeycomb core structures coated with composite absorber

open access: yesAIP Advances, 2018
Honeycomb structure coated with paraffin filled with composite of graphene and flaky carbonyl iron powder (FCIP) as lossy filler have been studied. The composite of graphene/FCIP with different weight ratio were synthesized via mechanical milling, the ...
Hui Luo   +6 more
doaj   +1 more source

Equivalent Boundary Conditions for Heterogeneous Acoustic Media

open access: yesTrends in Computational and Applied Mathematics, 2014
In this work, we have worked on possibilities to model artificial boundaries needed in the simulation of wave propagation in acoustic heterogeneous media.
Manuela Longoni de Castro   +2 more
doaj   +1 more source

NANO-ANTENNAS MODELING WITH BOR-FDTD AND INVESTIGATING EFFECT OF DISTANCE ON FLUORESCENCE [PDF]

open access: yesمجله مدل سازی در مهندسی, 2013
By applying BOR-FDTD method, fluorescence enhancement by using nano-antennas is investigated. Details of computational method are described including, updating equations, source, detector, absorbing boundary conditions.
احمد Mohammadi
doaj   +1 more source

Home - About - Disclaimer - Privacy