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Entropy, Volume 19, Issue 10

October 2017 - 63 articles

Cover Story: The Kepler Space Telescope monitored the light (photometry) coming from approximately 150,000 stars in the constellations of Cygnus, Lyra and Draco. This photometric data enables scientists to detect planets through several mechanisms by which planets affect the light emitted by their host stars. This includes transiting events, during which the planet passes in front of its host star temporarily blocking a fraction of the star's light. Also important are the reflected light from the planet, thermal emissions from a hot planet, Doppler boosting and ellipsoidal variations. The figure illustrates an analysis of the photometric data recorded from the Kepler-76 star system. Kepler-76 is a sun-type star that hosts a two Jupiter-mass planet that closely orbits the star with an orbital radius of 0.028 AU and an orbital period of 1.5 days. View this paper
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Articles (63)

  • Article
  • Open Access
4,646 Views
18 Pages

24 October 2017

In the large coupling regime of the 5-dimensional Einstein–Maxwell–Chern–Simons theory, charged and rotating cohomogeneity-1 black holes form sequences of extremal and non-extremal radially excited configurations. These asymptotically global Anti-de...

  • Article
  • Open Access
7 Citations
5,209 Views
12 Pages

Detection of Causal Relations in Time Series Affected by Noise in Tokamaks Using Geodesic Distance on Gaussian Manifolds

  • Andrea Murari,
  • Teddy Craciunescu,
  • Emmanuele Peluso,
  • Michela Gelfusa and
  • JET Contributors

24 October 2017

Abstract: Modern experiments in Magnetic Confinement Nuclear Fusion can produce Gigabytes of data, mainly in form of time series. The acquired signals, composing massive databases, are typically affected by significant levels of noise. The interpreta...

  • Article
  • Open Access
50 Citations
7,622 Views
14 Pages

Entropy Analysis of Short-Term Heartbeat Interval Time Series during Regular Walking

  • Bo Shi,
  • Yudong Zhang,
  • Chaochao Yuan,
  • Shuihua Wang and
  • Peng Li

24 October 2017

Entropy measures have been extensively used to assess heart rate variability (HRV), a noninvasive marker of cardiovascular autonomic regulation. It is yet to be elucidated whether those entropy measures can sensitively respond to changes of autonomic...

  • Article
  • Open Access
6 Citations
4,878 Views
14 Pages

Fluctuation of Information Entropy Measures in Cell Image

  • Ishay Wohl,
  • Naomi Zurgil,
  • Yaron Hakuk,
  • Maria Sobolev and
  • Mordechai Deutsch

23 October 2017

A simple, label-free cytometry technique is introduced. It is based on the analysis of the fluctuation of image Gray Level Information Entropy (GLIE) which is shown to reflect intracellular biophysical properties like generalized entropy. In this stu...

  • Article
  • Open Access
10 Citations
8,314 Views
36 Pages

23 October 2017

The energy for sustaining life is released through the oxidation of glucose, fats, and proteins. A part of the energy released within each cell is stored as chemical energy of Adenosine Tri-Phosphate molecules, which is essential for performing life-...

  • Article
  • Open Access
11 Citations
4,076 Views
17 Pages

22 October 2017

Methods are developed for eliciting a Dirichlet prior based upon stating bounds on the individual probabilities that hold with high prior probability. This approach to selecting a prior is applied to a contingency table problem where it is demonstrat...

  • Feature Paper
  • Article
  • Open Access
5 Citations
5,118 Views
25 Pages

22 October 2017

We describe some general results that constrain the dynamical fluctuations that can occur in non-equilibrium steady states, with a focus on molecular dynamics. That is, we consider Hamiltonian systems, coupled to external heat baths, and driven out o...

  • Article
  • Open Access
6 Citations
4,577 Views
17 Pages

22 October 2017

Fractional repetition (FR) codes are a class of distributed storage codes that replicate and distribute information data over several nodes for easy repair, as well as efficient reconstruction. In this paper, we propose three new constructions of FR...

  • Feature Paper
  • Article
  • Open Access
6 Citations
5,053 Views
16 Pages

21 October 2017

Markov chain Monte Carlo sampling propagators, including numerical integrators for stochastic dynamics, are central to the calculation of thermodynamic quantities and determination of structure for molecular systems. Efficiency is paramount, and to a...

  • Article
  • Open Access
8 Citations
5,018 Views
14 Pages

Comparative Statistical Mechanics of Muscle and Non-Muscle Contractile Systems: Stationary States of Near-Equilibrium Systems in A Linear Regime

  • Yves Lecarpentier,
  • Victor Claes,
  • Xénophon Krokidis,
  • Jean-Louis Hébert,
  • Oumar Timbely,
  • François-Xavier Blanc,
  • Francine Michel and
  • Alexandre Vallée

20 October 2017

A. Huxley’s equations were used to determine the mechanical properties of muscle myosin II (MII) at the molecular level, as well as the probability of the occurrence of the different stages in the actin–myosin cycle. It was then possible to use the f...

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Entropy - ISSN 1099-4300