Results 21 to 30 of about 1,543,814 (281)

About some Entropy Aspects of Dissipative Systems [PDF]

open access: yesTheoretical and Applied Economics, 2006
This paper is aspiring to get a logical explanation on the entropy velocity (i.e. on the entropy acceleration) in a Universe “endowed” with a dissipative system.
Emil Dinga
doaj   +1 more source

Does a computer have an arrow of time? [PDF]

open access: yes, 2007
In [Sch05a], it is argued that Boltzmann's intuition, that the psychological arrow of time is necessarily aligned with the thermodynamic arrow, is correct.
Owen J. E. Maroney   +31 more
core   +1 more source

Episensitization: Defying Time’s Arrow [PDF]

open access: yesFrontiers in Oncology, 2015
The development of cancer is driven by complex genetic and epigenetic changes that result in aberrant and uncontrolled cellular growth. Epigenetic changes, in particular, are implicated in the silencing or activation of key genes that control cellular growth and apoptosis and contribute to transformative potential.
Oronsky, Bryan T.   +10 more
openaire   +3 more sources

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 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

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

Arrow(s) of Time without a Past Hypothesis [PDF]

open access: yes, 2019
The paper discusses recent proposals by Carroll and Chen, as well as Barbour, Koslowski, and Mercati to explain the (thermodynamic) arrow of time without a Past Hypothesis, i.e., the assumption of a special (low-entropy) initial state of the universe ...
Lazarovici, Dustin, Reichert, Paula
core   +3 more sources

Quantum computer inverting time arrow for macroscopic systems [PDF]

open access: yes, 2001
A legend tells that once Loschmidt asked Boltzmann on what happens to his statistical theory if one inverts the velocities of all particles, so that, due to the reversibility of Newton's equations, they return from the equilibrium to a nonequilibrium ...
Georgeot, B., Shepelyansky, D. L.
core   +2 more sources

Quantum Computation and Arrows of Time

open access: yesEntropy, 2020
Quantum physics is surprising in many ways. One surprise is the threat to locality implied by Bell’s Theorem. Another surprise is the capacity of quantum computation, which poses a threat to the complexity-theoretic Church-Turing thesis.
Nathan Argaman
doaj   +1 more source

Pre-bangian origin of our entropy and time arrow [PDF]

open access: yes, 1999
I argue that, in the chaotic version of string cosmology proposed recently, classical and quantum effects generate, at the time of exit to radiation, the correct amount of entropy to saturate a Hubble (or holography) entropy bound (HEB) and to identify ...
Veneziano, G.
core   +2 more sources

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