Results 61 to 70 of about 4,336,710 (302)
An Explicit Formulation of Singularity-Free Dynamic Equations of Mechanical Systems in Lagrangian Form---Part Two: Multibody Systems [PDF]
Modeling, Identification and Control, 2012 This paper presents the explicit dynamic equations of multibody mechanical systems. This is the second paper on this topic. In the first paper the dynamics of a single rigid body from the Boltzmann--Hamel equations were derived.
Pål Johan From
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The dynamical equation of the spinning electron [PDF]
Journal of Physics A: Mathematical and General, 2003 We obtain by invariance arguments the relativistic and non-relativistic invariant dynamical equations of a classical model of a spinning electron. We apply the formalism to a particular classical model which satisfies Dirac's equation when quantised.
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FEBS Letters, EarlyView.Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav +2 more
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Continuum equations for stellar dynamics [PDF]
, 2003 12 pages, 2 figures, RevTeX 4 style. To appear in Stellar Astrophysical Fluid Dynamics: Proceedings of the Chateau de Mons meeting in honour of Douglas Gough's 60th birthday (Cambridge University Press, 2003)
Spiegel, Edward A., Thiffeault, Jean-Luc
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FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source
The ℎ-principle and the equations of fluid dynamics [PDF]
Bulletin of the American Mathematical Society, 2012 In this note we survey some recent results for the Euler equations in compressible and incompressible fluid dynamics. The main point of all these theorems is the surprising fact that a suitable variant of Gromov’s h
C. De Lellis, L. Szekelyhidi
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The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source
Iterated Oscillation Criteria for Delay Dynamic Equations of First Order [PDF]
, 2008 We obtain new sufficient conditions for the oscillation of all solutions of first-order delay dynamic equations on arbitrary time scales, hence combining and extending results for corresponding differential and difference equations.
M. Bohner +9 more
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Hamiltonian Dynamics and the Schrodinger Equation [PDF]
Progress of Theoretical Physics, 1974 Summary: It is shown that the Schrödinger equation can be derived via a variation on the Hamiltonian methods of classical physics that feature the action function \(S\). This variation consists mainly in treating an ensemble of particles instead of a single one. Moreover, the ensemble probability fluid must move in accordance with the laws of a special
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Coagulation Equations for Aerosol Dynamics [PDF]
, 2021 Binary coagulation is an important process in aerosol dynamics by which two particles merge to form a larger one. The distribution of particle sizes over time may be described by the so-called Smoluchowski's coagulation equation. This integrodifferential equation exhibits complex non-local behaviour that strongly depends on the coagulation rate ...
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