I report on special features of a course on statistics and probabilities at my university, where future teachers of mathematics in primary school are instructed on en-active representations of statistical situations and on their analogue modelling. I also report on empirical work with future mathematics teachers of primary school in Baden Württemberg who have been instructed to introduce simple...

Inspired by the universal approximation theorem and widespread adoption of artificial neural network techniques in a diversity fields, we propose feed-forward networks as general purpose trial wave function for quantum Monte Carlo simulations continous many-body systems. Whereas simple model systems whole can be represented network, antisymmetry condition non-trivial fermionic is incorporated m...

The influence of growth interruption on the luminescence properties Ga(As,Sb)/GaAs interface have been studied by continous wave and time resolved photoluminescence spectrosocopy in type II Ga(As,Sb)/GaAs/(Ga,In)As double quantum well structures. A specific highly selective etching technique combination with atomic force microscopy (AFM) is used to analyse morphology Ga(As,Sb) layers. charge tr...

Thematic is a learning that covers all aspects and some materials in lesson, one of them mathematics. Where mathematics very important the daily lives students. Calistung (reading, writing, counting) material lessons Using this rotary wheel media can increase students' abilities, interests creativity reading, writing arithmetic materials. Therefore, to understanding ability counting students so...

This note was inspired by a colloquium talk given by S. S. Abhyankar at the Tata Institute, on the work of Abhyankar, Popp and Seiler (see [2]). It was pointed out in this talk that classical modular curves can be used to construct (by specialization) coverings of the affine line in positive characteristic. In this “modular” optic it seemed natural to consider Drinfel’d modular curves for const...

Boundary-based interactive segmentation methods aim to build a closed contour, very often using minimum cost paths linking userprovided ordered landmark points. While discrete methods rely on a graph modeling of the image, continous models address the problem by means of curve optimization. Among them, the minimal path method [1] find curves of minimal length defined from an edge-based cost fun...

We consider the CFT of a free boson compactified on a circle, such that the compactification radius R2 is an irrational multiple of R2 selfdual. Apart from the standard Dirichlet and Neumann boundary states, Friedan suggested [1] that an additional 1-parameter family of boundary states exists. These states break U(1) symmetry of the theory, but still preserve conformal invariance. In this paper...