Results 41 to 50 of about 581,509 (321)

Classical mechanics is not h=0 limit of quantum mechanics

, 2004
Both the set of quantum states and the set of classical states described by symplectic tomographic probability distributions (tomograms) are studied. It is shown that the sets have common part but there exist tomograms of classical states which are not ...
Man'ko, O. V., Man'ko, V. I.
core   +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, Sílvia Arroz‐Madeira, Cláudio A. Franco, Sara Silva Pereira   +3 more
wiley   +1 more source

From Classical to Quantum Mechanics: "How to translate physical ideas into mathematical language"

, 2001
In this paper, we investigate the connection between Classical and Quantum Mechanics by dividing Quantum Theory in two parts: - General Quantum Axiomatics (a system is described by a state in a Hilbert space, observables are self-adjoint operators and so
Bayen F., Bayen F., Bergeron H., Flato M., George C., Gleason A., H. Bergeron, Koopman B. O.   +7 more
core   +1 more source

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, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Ergodic hypothesis in classical statistical mechanics

Revista Brasileira de Ensino de Física
An updated discussion on physical and mathematical aspects of the ergodic hypothesis in classical equilibrium statistical mechanics is presented. Then a practical attitude for the justification of the microcanonical ensemble is indicated.
César R. de Oliveira, Thiago Werlang
doaj   +1 more source

Infinite motion in the classical functional mechanics

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013
In the paper the description of infinite movement in the functional formulation of classical mechanics is investigated. On the example of simple exactly solvable problems (passing through the barrier and falling in the center) the two classes of problems
Andrey Igorevich Mikhailov
doaj   +1 more source

On the Relationship of Quantum Mechanics to Classical Electromagnetism and Classical Relativistic Mechanics

, 2004
Some connections between quantum mechanics and classical physics are explored. The Planck-Einstein and De Broglie relations, the wavefunction and its probabilistic interpretation, the Canonical Commutation Relations and the Maxwell--Lorentz Equation may ...
Amrein W O, Bohr N, Born M, Born M, Bothe W, Campos R A, de Broglie L, Dirac P A M, Einstein A, Einstein A, Einstein A, Feynman R P, Feynman R P, Field J H, Halzen F, Heisenberg W, Heisenberg W, J H Field, Levy-Leblond J M, Levy-Leblond J M, Mandel L, Margaritondo G, Minkowski H, Newton T D, Pais A, Planck M, Planck M, Sakurai J J, Schrödinger E, Stark J   +29 more
core   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

The Possibility of Reconciling Quantum Mechanics with Classical Probability Theory

, 2007
We describe a scheme for constructing quantum mechanics in which a quantum system is considered as a collection of open classical subsystems. This allows using the formal classical logic and classical probability theory in quantum mechanics. Our approach
A. N. Kolmogorov, D. A. Slavnov, D. A. Slavnov, D. A. Slavnov, G. G. Emch, J. Dixmier, J. F. Clauser, J. Neumann von, J. Neveu, J. S. Bell, M. A. Neimark, M. Born, P. Jordan, S. Kochen, W. Rudin   +14 more
core   +2 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source