Alexander Borst studied Biology at the University of Wuerzburg. His PhD work in Martin Heisenberg’s lab demonstrated that the mushroom bodies of Drosophila are indispensable for olfactory learning. He did a postdoc with Karl Goetz at the Max-PlanckInstitute for biological Cybernetics in Tübingen, where he started to work on fly motion vision, a field which he never left since. In 1993, he becam...

conclusions the educational framework provided by im for at training improved attitude and behavioral beliefs that can facilitate the adoption of at behavior and decreased clbp. results significant differences were recorded before and after intervention (p < 0.001) for the model constructs of intention, perceived risk, direct attitude, behavioral beliefs, and knowledge in both groups. direct at...

silver coins of alexander of macedonia, until the arrival of parthians in the 1st century bc, have been put in wdxrf in order to determin ag, cu, pb and au as major and trace elements for fineness, debasement and refinement of silver in ancient persia. seleucid kingdom from 4th to 1st century bc was succeeded by several dynasties and kings. but the chemical composition of their silver coins an...

We combine work of Cox on the homogeneous coordinate ring of a toric variety and results of Eisenbud-Mustaţǎ-Stillman and Mustaţǎ on cohomology of toric and monomial ideals to obtain a formula for computing χ(OX (D)) for a divisor D on a complete simplicial toric variety XΣ. The main point is to use Alexander duality to pass from the toric irrelevant ideal, which appears in the computation of χ...

We present a reanalysis of the renormalization-group calculation to first order in ε=6−d, where d is the spatial dimensionality, of the exponent, t, which describes the behavior of the conductivity of a percolating network at the percolation threshold. If we set t=(d−2)νp+ζ, where νp is the correlation-length exponent, then our result is ζ=1+(ε/42). This result clarifies several previously para...

1 dense-core vesicle exocytosis 2 Kwun-nok M. Man, Cordelia Imig, Alexander M. Walter, Paulo S. 3 Pinheiro, David R. Stevens, Jens Rettig, Jakob B. Sørensen, Benjamin 4 H. Cooper, Nils Brose, and Sonja M. Wojcik. 5 6 Department of Molecular Neurobiology, Max Planck Institute of Experimental 7 Medicine, D-37075 Göttingen, Germany 8 Leibniz Institute for Molecular Pharmacology, D-13125 Berlin, Ge...

By considering a (not necessarily locally-flat) PL knot as the singular locus of a PL stratified pseudomanifold, we can use intersection homology theory to define intersection Alexander polynomials, a generalization of the classical Alexander polynomial invariants for smooth or PL locally-flat knots. We show that the intersection Alexander polynomials satisfy certain duality and normalization c...

Freedman, Lovász and Schrijver characterized graph parameters that can be represented as the (weighted) number of homomorphisms into a fixed graph. Several extensions of this result have been proved. We use the framework of categories to prove a general theorem of this kind. Similarly as previous resuts, the characterization uses certain infinite matrices, called connection matrices, which are ...

For a prime p and binomial axk+bxl with 1 ≤ l < k < 1 32 (p−1) 2 3 , we use Stepanov’s method to obtain the bound ∣∣∣∣∣ p−1 ∑ x=1 ep(ax k + bx) ∣∣∣∣∣ max { 1, l∆− 1 3 } 1 4 k 1 4 p 3 4 , where ∆ = k−l (k,l,p−1) .