Results 51 to 60 of about 4,370,382 (329)
Stationary correlations for a far-from-equilibrium spin chain
, 2002 A kinetic one-dimensional Ising model on a ring evolves according to a generalization of Glauber rates, such that spins at even (odd) lattice sites experience a temperature $T_{e}$ ($T_{o}$).
Schmittmann, B., Schmueser, F.
core +1 more source
Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS Letters, EarlyView.Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
wiley +1 more source
Noncommutative localization and chain complexes I. Algebraic K- and L-theory [PDF]
, 2001 The noncommutative (Cohn) localization S^{-1}R of a ring R is defined for any collection S of morphisms of f.g. projective left R-modules. We exhibit S^{-1}R as the endomorphism ring of R in an appropriate triangulated category. We use this expression to
Neeman, Amnon, Ranicki, Andrew
core +2 more sources
Approach to a Substituted Heptamethine Cyanine Chain by the Ring Opening of Zincke Salts.
Journal of the American Chemical Society, 2019 Cyanine dyes play an indispensable and central role in modern fluorescence-based biological techniques. Despite their importance and widespread use, the current synthesis methods of heptamethine chain modification are restricted to coupling reactions and
Lenka Štacková +2 more
semanticscholar +1 more source
Mechanisms of parasite‐mediated disruption of brain vessels
FEBS Letters, EarlyView.Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira +3 more
wiley +1 more source
Crystal structure of 7-hydroxy-8-[(4-methylpiperazin-1-yl)methyl]-2H-chromen-2-one
Acta Crystallographica Section E: Crystallographic Communications, 2016 In the title compound, C15H18N2O3, the coumarin ring is essentially planar, with an r.m.s. deviation of 0.012 Å. An intramolecular O—H...N hydrogen bond forms an S(6) ring motif. The piperazine ring adopts a chair conformation.
Koji Kubono +4 more
doaj +1 more source
Quantum Critical Environment Assisted Quantum Magnetometer
, 2017 A central qubit coupled to an Ising ring of $N$ qubits, operating close to a critical point is investigated as a potential precision quantum magnetometer for estimating an applied transverse magnetic field.
Jaseem, Noufal, Omkar, S., Shaji, Anil
core +2 more sources
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Some conditions for finiteness of a ring
International Journal of Mathematics and Mathematical Sciences, 1988 Extending a result of Putcha and Yaqub, we prove that a non-nil ring must be finite if it has both ascending chain condition and descending chain condition on non-nil subrings.
Howard E. Bell
doaj +1 more source
5-(2-Ethoxy-4-fluorophenyl)-1,2,4-triazolo[1,5-a]pyrimidine
IUCrData, 2016 In the title compound, C13H11FN4O, the dihedral angle between the triazolopyrimidine ring system and fluorophenyl ring is 39.16 (12)°. In the crystal, C—H...N hydrogen bonds link the molecules resulting in R22(8) ring motifs and C(8) chain motifs.
Maryam Gilandoust +6 more
doaj +1 more source