Self-organized criticality in the Kardar-Parisi-Zhang-equation

Kardar-Parisi-Zhang interface depinning with quenched noise is studied in an ensemble that leads to self-organized criticality in the quenched Edwards-Wilkinson (QEW) universality class and related sandpile models. An interface is pinned at the boundaries, and a slowly increasing external drive is added to compensate for the pinning. The ensuing interface behavior describes the integrated toppling activity history of a QKPZ cellular automaton. The avalanche picture consists of several phases depending on the relative importance of the terms in the interface equation. The SOC state is more complicated than in the QEW case and it is not related to the properties of the bulk depinning transition.Comment: 5 pages, 3 figures; accepted for publication in Europhysics Letter

Heterocaryosis in DNA-induced inoritol-independent hyphoe of N. crassa

Heterocaryosis in DNA-induced inoritol-independent hypho

DNA uptake by N. crassa

DNA uptake by N. crass

Localized spectral asymptotics for boundary value problems and correlation effects in the free Fermi gas in general domains

We rigorously derive explicit formulae for the pair correlation function of the ground state of the free Fermi gas in the thermodynamic limit for general geometries of the macroscopic regions occupied by the particles and arbitrary dimension. As a consequence we also establish the asymptotic validity of the local density approximation for the corresponding exchange energy. At constant density these formulae are universal and do not depend on the geometry of the underlying macroscopic domain. In order to identify the correlation effects in the thermodynamic limit, we prove a local Weyl law for the spectral asymptotics of the Laplacian for certain quantum observables which are themselves dependent on a small parameter under very general boundary conditions

Quick and efficient protoplast isolation from Neurospora crassa.

Quick and efficient protoplast isolation from Neurospora crassa

Experiences with Metzenberg\u27s method for preparing Neurospora DNA.

Experiences with Metzenberg\u27s method for preparing Neurospora DNA