Results 141 to 150 of about 570,196 (180)

Entropy-increase principle. Part 4

Journal of Engineering Physics, 1988
The paper discusses Heaviside's concept on universal energy dissipation applied to elucidate irreversibility.
openaire   +1 more source

AGING, INCREASING GENOMIC ENTROPY, AND NEURODEGENERATIVE DISEASE

Neurologic Clinics, 1998
The genome, as biologic information, can be conceptualized in terms of entropy. The second law of thermodynamics dictates that entropy must increase over time. Consequently, aging can be viewed as increasing genomic entropy. Genetic instability is the biophysical correlate of increasing genomic entropy.
openaire   +2 more sources

Increased resting-state brain entropy in Alzheimer’s disease

NeuroReport, 2018
Entropy analysis of resting-state functional MRI (R-fMRI) is a novel approach to characterize brain temporal dynamics and facilitates the identification of abnormal brain activity caused by several disease conditions. However, Alzheimer's disease (AD)-related brain entropy mapping based on R-fMRI has not been assessed.
Shao-Wei, Xue, Yonghu, Guo
openaire   +2 more sources

Entropy increase of amino acid sequence in protein

Journal of Molecular Evolution, 1974
Transition probability matrices of amino acid substitution are calculated for hemoglobin, cytochrome c, fibrinopeptide, immunoglobulin and lysozyme, and for protein as a whole. When these matrices operate on the column vectors which represent the contemporary amino acid frequencies of the corresponding proteins, amino acid compositions change so as to ...
T, Yano, M, Hasegawa
openaire   +2 more sources

Detecting entropy increase in categorical data using maximum entropy distribution approximations

IISE Transactions, 2017
We propose a statistical monitoring method to detect the increase of entropy in categorical data.
Devashish Das, Shiyu Zhou
openaire   +1 more source

The dynamic origin of increasing entropy

Reviews of Modern Physics, 1989
Thermodynamic states are assumed to be characterized by densities. Recent ergodic-theory results on the evolution of densities are used to give a unified treatment of the origin of classical nonequilibrium thermodynamic behavior. Asymptotic periodicity is sufficient for the existence of at least one state of (metastable) thermodynamic equilibrium and ...
openaire   +1 more source

How the Entropy is Increasing!

1998
Edith had an apartment that was less than 300m away from the hotel in Geneva where many radio astronomers stayed during the times when the International Telecommunications Union, a UN body, met every year or two to help with the management of the radio frequency spectrum.
openaire   +1 more source

Can entropy and “order” increase together?

Physics Letters A, 1984
Abstract Disorder and entropy are formally decoupled in such a way that it is possible for an expanding universe to have periods in which both entropy and order increase simultaneously. Some other consequences of this decoupling are traced and applications in statistical mechanics and to biological systems become possible.
openaire   +1 more source

ENTROPY INCREASE AND K-SYSTEMS IN QUANTUM THEORY

International Journal of Modern Physics B, 1990
It is shown that the relative entropy converges to its equilibrium value when the states converge strongly. This can happen only for subalgebras for which the clustering is uniform. It happens for K-systems for which this uniformity in clustering has the maximal extent which is possible.
openaire   +1 more source

The Increase of Entropy and Irreversibility

1989
The increase of entropy in time is a very basic property of nonequilibrium processes. We discuss it on three different levels of generality.
openaire   +1 more source