Results 31 to 40 of about 797,546 (295)
Molecular bases of circadian magnesium rhythms across eukaryotes
FEBS Letters, EarlyView.Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley +1 more source
Influence of sawtooth oscillations on fast ions in a stellarator
Nuclear FusionSawtooth oscillations in tokamaks frequently lead to the redistribution of energetic ions, mainly on passing orbits, causing their expulsion from the core.
D. Moseev +21 more
doaj +1 more source
Peptide‐based ligand antagonists block a Vibrio cholerae adhesin
FEBS Letters, EarlyView.The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang +9 more
wiley +1 more source
First fluctuation measurements using an Imaging Neutral Particle Analyzer on DIII-D
Nuclear FusionA recent upgrade to the Imaging Neutral Particle Analyzer (INPA) on DIII-D has allowed for the first fluctuation measurements using an INPA to be taken during a neoclassical tearing mode (NTM).
K.R. Gage +5 more
doaj +1 more source
The Influence of Fast Particles on Plasma Rotation in the TUMAN-3M Tokamak
Atoms, 2022 In most present-day tokamaks, the majority of the heating power comes from sources such as neutral-beam injection (NBI) and other types of auxiliary heating which allow for the transfer of energy to the plasma by a small population of externally ...
Alexander Yashin +5 more
doaj +1 more source
Calibration techniques for fast-ion Dα diagnostics [PDF]
Review of Scientific Instruments, 2012 Fast-ion Dα measurements are an application of visible charge-exchange recombination (CER) spectroscopy that provide information about the energetic ion population. Like other CER diagnostics, the standard intensity calibration is obtained with an integrating sphere during a vacuum vessel opening.
Heidbrink, WW +5 more
openaire +4 more sources
FEBS Letters, EarlyView.Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman +2 more
wiley +1 more source
Observation of bi-directional global Alfvén eigenmodes in the MAST-U tokamak
Nuclear FusionThe first observations and classification of deuterium beam-driven sub-cyclotron frequency range Alfvén eigenmodes (AEs) are presented for the MAST-Upgrade tokamak. Sets of observed eigenmodes are separated in frequency by approximately 200 kHz.
M.B. Dreval +10 more
doaj +1 more source
发电技术ObjectivesCollective Thomson scattering (CTS) is one of the few fusion diagnostic technologies that can provide fast ion kinetic property measurement in the center of fusion devices.
FANG Xinyu +4 more
doaj +1 more source
Fast cooling of trapped ions using the dynamical Stark shift gate [PDF]
, 2006 A laser cooling scheme for trapped ions is presented which is based on the fast dynamical Stark shift gate, described in [Jonathan etal, PRA 62, 042307].
A. Retzker +3 more
core +2 more sources