Results 41 to 50 of about 19,779 (264)
Calpain small subunit homodimerization is robust and calcium‐independent
FEBS Letters, EarlyView.Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
wiley +1 more source
Deformed Oscillators with Two Double (Pairwise) Degeneracies of Energy Levels
Symmetry, Integrability and Geometry: Methods and Applications, 2007 A scheme is proposed which allows to obtain special $q$-oscillator models whose characteristic feature consists in possessing two differing pairs of degenerate energy levels.
Alexandre M. Gavrilik +1 more
doaj
Physical Review ResearchOpen quantum systems with nearly degenerate energy levels have been shown to exhibit long-lived metastable states in the approach to equilibrium, even when modelled with certain Lindblad-form quantum master equations.
Matthew Gerry +2 more
doaj +1 more source
Ultrafast carrier dynamics in Landau-quantized graphene
Nanophotonics, 2015 In an external magnetic field, the energy of massless charge carriers in graphene is quantized into non-equidistant degenerate Landau levels including a zero-energy level.
Wendler Florian +2 more
doaj +1 more source
Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
FEBS Letters, EarlyView.A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa +5 more
wiley +1 more source
Lamb shift of non-degenerate energy level systems placed between two infinite parallel conducting plates [PDF]
Journal of Physics A: Mathematical and Theoretical, 2012 submit ...
Billaud, Baptiste, Truong, Tuong-Trong
openaire +2 more sources
Optics Express, 2023 Squeezed light near an atomic resonance is beneficial for efficient atom-light quantum interfaces. It is desirable but challenging to directly generate in atoms due to excess noise from spontaneous emission and reabsorption. Here, we report on the use of energy-level modulation to actively control atomic coherence and interference in degenerate four ...
Dan Wang +7 more
openaire +2 more sources
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS 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
History and Some Aspects of the Lamb Shift
Physics, 2020 Radiation is a process common to classical and quantum systems with very different effects in each regime. In a quantum system, the interaction of a bound electron with its own radiation field leads to complex shifts in the energy levels of the electron,
G. Jordan Maclay
doaj +1 more source
Dynamics and uncertainty for maximally entangled bipartite system constrained on a helicoid
European Physical Journal C: Particles and Fields, 2022 The classical and quantum dynamics of particles constrained on a right helicoid is discussed via Dirac approach. We show how the uncertainty in measurement for observables of maximally entangled system is affected by the total number of constrained ...
Asma Bashir +3 more
doaj +1 more source