Institute of Biochemistry, Medical School, RWTH Aachen University, Pauwelsstrasse 30, 52057 Aachen, Germany Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institute, Box 280, 171 77 Stockholm, Sweden Department of Plant Biology and Forest Genetics, Uppsala Genetic Center, Swedish University of Agricultural Sciences, Box 7080, 75007 Uppsala, Sweden Corresponding author. Tel...

This article reports the orthodontic treatment ofa 25-year-old female patient whose chief complaint was the inclination of the maxillary occlusal plane in front view. The individualized vertical placement of brackets is described. This placement made possible a symmetrical occlusal plane to be achieved in a rather straightforward manner without the need for further technical resources.

Object Orientation has as primary goal to improve the software construction process. Object Oriented analysis, design and software construction should yield software of a high quality: software that is reliable, maintainable, extensible, adaptable. However, delivering large OO software systems in a qualitative way is a significant challenge. Scaling up requires formal precision of the semantics...

In this paper we refine the well-known permutation statistic “descent” by fixing parity of (exactly) one of the descent’s numbers. We provide explicit formulas for the distribution of these (four) new statistics. We use certain differential operators to obtain the formulas. Moreover, we discuss connection of our new statistics to the Genocchi numbers. We also provide bijective proofs of some of...

The notion of interpretation was first carefully defined and developed in the book [TMR53]. The notion of interpretation is absolutely fundamental to mathematical logic and the foundations of mathematics. It is also crucial for the foundations and philosophy of science-although here some crucial conditions generally need to be imposed; e.g., " the interpretation leaves the mathematical concepts...