399,615 research outputs found
Comment on ``Nonuniversal Exponents in Interface Growth''
Recently, Newman and Swift[T. J. Newman and M. R. Swift, Phys. Rev. Lett.
{\bf 79}, 2261 (1997)] made an interesting suggestion that the strong-coupling
exponents of the Kardar-Parisi-Zhang (KPZ) equation may not be universal, but
rather depend on the precise form of the noise distribution. We show here that
the decrease of surface roughness exponents they observed can be attributed to
a percolative effect
Anomalous scaling in the Zhang model
We apply the moment analysis technique to analyze large scale simulations of
the Zhang sandpile model. We find that this model shows different scaling
behavior depending on the update mechanism used. With the standard parallel
updating, the Zhang model violates the finite-size scaling hypothesis, and it
also appears to be incompatible with the more general multifractal scaling
form. This makes impossible its affiliation to any one of the known
universality classes of sandpile models. With sequential updating, it shows
scaling for the size and area distribution. The introduction of stochasticity
into the toppling rules of the parallel Zhang model leads to a scaling behavior
compatible with the Manna universality class.Comment: 4 pages. EPJ B (in press
A Roman Commentary on St. Paul’s Letter to the Philippians [review]/Cassidy, Richard J.
This is a book review by Michael Zhang
Retracted: Inhibition of Corneal Neovascularization by Hydrazinocurcumin
This article previously published in Volume 15 Issue 2 of this journal in February 2016 has been retracted in line with the guidelines from the Committee on Publication Ethics (COPE, http://publicationethics.org/resources/guidelines)Retracted: Zhan W, Zhu J, Zhang Y. Inhibition of corneal neovascularization by hydrazinecurcumin. Trop J Pharm Res 2016; 15(2):349-354 doi: http://dx.doi.org/10.4314/tjpr.v15i2.18
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