Results 31 to 40 of about 716,442 (251)

The Cosmological Arrow of Time and the Retarded Potentials

open access: yesUniverse, 2022
We demonstrate that the cosmological arrow of time is the cause for the arrow of time associated with the retarded radiation. This implies that the proposed mathematical model serves to confirm the hypothesis of Gold and Wheeler that the stars radiate ...
Alla A. Yurova   +2 more
doaj   +1 more source

Feedback control and the arrow of time [PDF]

open access: yesInternational Journal of Control, 2008
The purpose of this paper is to highlight the central role that the time asymmetry of stability plays in feedback control. We show that this provides a new perspective on the use of doubly-infinite or semi-infinite time axes for signal spaces in control theory.
Tryphon T. Georgiou, Malcolm C. Smith
openaire   +3 more sources

Beyond the Arrow of Time: Can There Be a Relation between the Measurement of Entropy and Time?

open access: yesProceedings, 2017
The general tendency of the entropy of an isolated to increase is considered to be directly linked to the direction of the flow of time. This raises the question whether a quantitative relation can be established such that a time interval can be measured
Ben Akih-Kumgeh
doaj   +1 more source

Solid-Phase Microextraction Arrow for the Sampling of Volatile Organic Compounds in Milk Samples

open access: yesSeparations, 2020
A novel sample preparation method based on the use of the Arrow solid-phase microextraction device was used to extract and preconcentrate volatile organic compounds (VOCs) from milk samples prior to their determination by gas chromatography–mass ...
Natalia Manousi   +2 more
doaj   +1 more source

The arrow of time

open access: yesThe Astrophysical Journal, 1975
A model of the universe which resolves the apparent contradiction between the historical and the thermodynamic arrows of time is presented. Both arrows are reconciled with the almost time-symmetric character of physical laws at the microscopic level. The theory implies that the universe is unfolding in time but not unraveling. (BJG)
openaire   +1 more source

A note on singularities and the arrow of time [PDF]

open access: yesSerbian Astronomical Journal, 2000
An interesting thought experiment claiming to highlight the connection between singularities and the global arrow of time is re-analyzed, and a further specification suggested.
Ćirković M.M.
doaj   +1 more source

On the Arrow of Time

open access: yesTheoretical Physics, 2017
AMS LaTeX file, 22 pages; added content, submitted to Foundations of ...
openaire   +2 more sources

Multidimensional arrow of time

open access: yesEuropean Physical Journal C: Particles and Fields
This paper investigates the influence of extra dimensions on the nature of the arrow of time. We demonstrate that the observed arrow of time can be explained by the monotonic growth of the multidimensional manifold’s volume.
Sergey G. Rubin
doaj   +1 more source

Clinical and Biological Features of Response in Resistant Neuroblastoma to 131I‐Metaiodobenzylguanidine Radiotherapy in the Anti‐GD2 Immunotherapy Era

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background 131I‐metaiodobenzylguanidine (131I‐MIBG) radiotherapy is a key treatment for relapsed and refractory (R/R) neuroblastoma (NB). Patients with R/R disease treated in the modern era are increasingly exposed to anti‐GD2 immunotherapy, which exerts selective pressure and may modify both tumor cell state and microenvironment.
Benjamin J. Lerman   +7 more
wiley   +1 more source

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