Results 101 to 110 of about 4,565,563 (306)

Quasicrystalline Phase Formation of the Al67Cu26Fe15 Alloy

open access: yesSemina: Ciências Exatas e Tecnológicas, 2019
The present work aimed to characterize the microstructure of the icosahedral phase (quasicrystalline phase-f)of the system with stoichiometric composition of the quasicrystal Al67Cu26Fe15.
Luciano Nascimento, Anastasiia Melnyk
doaj   +1 more source

Phase Pattern Formation in Grain Boundaries

open access: yesPhysical Review Letters
In this Letter we derive conditions that predict the existence of two-phase periodic-pattern grain boundary structures that are stable against coarsening. While previous research has established that elastic effects can lead to phase pattern formation on crystal surfaces, the possibility of stable grain boundary structures composed of alternating grain
I. S. Winter, T. Frolov
openaire   +3 more sources

The role and implications of mammalian cellular circadian entrainment

open access: yesFEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Boron in Palladium: interaction, phase formation and phase transformation

open access: yes, 2001
The principles for the formation of interstitial solid solution have been described in the past by rules, taking in consideration elastic relationships between solvent and solute atoms. These rules are not applicable on the formation of the solid solution of the late transition metals (a-Co, Rh, Ir, Ni, Pd, Pt) and boron.
openaire   +3 more sources

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

Solid solutions in disulfide systems Re(IV)S2–Ti(IV)S2, Re(IV)S2–Mo(IV)S2, and Re(IV)S2–W(IV)S2

open access: yesТонкие химические технологии
Objectives. Chalcogenides of transition elements with low oxidation states, as well as their substituted derivatives, remain a poorly studied class of chemical compounds.
E. I. Efremova   +3 more
doaj   +1 more source

Origin of the Metal-Insulator Transition of Indium Atom Wires on Si(111)

open access: yes, 2016
As a prototypical one-dimensional electron system, self-assembled indium (In) nanowires on the Si(111) surface have been believed to drive a metal-insulator transition by a charge-density-wave (CDW) formation due to electron-phonon coupling.
Cho, Jun-Hyung, Kim, Sun-Woo
core   +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

Disentangling Cooper-pair formation above Tc from the pseudogap state in the cuprates

open access: yes, 2010
The discovery of the pseudogap in the cuprates created significant excitement amongst physicists as it was believed to be a signature of pairing, in some cases well above the room temperature.
Adam Kaminski   +37 more
core   +1 more source

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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