Results 121 to 130 of about 1,631,280 (354)

Primordial star formation triggered by UV photons from UHECR

open access: yes, 2004
The presence of ultra-high energy cosmic rays in the universe in the pre-ionization epoch enhances significantly H$_2$ kinetics in virialized halos.
Shchekinov, Yu. A., Vasiliev, E. O.
core   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS 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

Artificial neural network-based prediction of complete forming limit curves for steel in sheet metal forming

open access: yesJournal of Alloys and Metallurgical Systems
Forming Limit Curve (FLC) is crucial for predicting material formability and preventing defects in the sheet metal forming industry. Traditionally, FLCs are determined through Nakajima and Marciniak tests, which assess the material's response to various ...
Shivesh Kumar Sharan   +3 more
doaj   +1 more source

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

open access: yesFEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang   +8 more
wiley   +1 more source

Limit-Forms of Time

open access: yesCritical Hermeneutics
To establish what time is, as in Plato’s iconic definition (“moving image of eternity”, Timaeus 37d), one often has to emphasize its relation to what time is not. Time seems to be defined dialectically, in terms of what is not eternal, not extra-temporal, etc.
openaire   +3 more sources

Limits and Possibilities of Orthodontic Treatment of Patients with Skeletal Forms of Sagittal Anomalies

open access: diamond, 2023
Н В Попова   +78 more
openalex   +1 more source

Quantum Phase Transition in Skyrmion Lattices

open access: yes, 1997
We investigate the ground state of 2D electron gas in Quantum Hall regime at the filling factor slightly deviating from unity, that can be viewed as a sparse lattice of skyrmions.
A. A. Belavin   +18 more
core   +2 more sources

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

open access: yesFEBS 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

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