University of Paderborn

About: University of Paderborn is a education organization based out in Paderborn, Nordrhein-Westfalen, Germany. It is known for research contribution in the topics: Control reconfiguration & Software. The organization has 6684 authors who have published 16929 publications receiving 323154 citations.

Covering Pareto-optimal fronts by subswarms in multi-objective particle swarm optimization

Abstract: Covering the whole set of Pareto-optimal solutions is a desired task of multiobjective optimization methods. Because in general it is not possible to determine this set, a restricted amount of solutions are typically delivered in the output to decision makers. We propose a method using multiobjective particle swarm optimization to cover the Pareto-optimal front. The method works in two phases. In phase 1 the goal is to obtain a good approximation of the Pareto-front. In a second run subswarms are generated to cover the Pareto-front. The method is evaluated using different test functions and compared with an existing covering method using a real world example in antenna design.

A unified approach towards the development of Swedish as L2: a processability account

Abstract: This paper has two main objectives: (a) to put the vast body of research on Swedish as a second language (SSL) into one coherent framework; and (b) to test the predictions deriving from processability theory (Pienemann, 1998a, 1998b) for Swedish against this empirical database. We will survey the 14 most prominent research projects on SSL covering wide areas of syntax and morphology in longitudinal and cross-sectional studies. This survey is the first to be carried out for Swedish, and it will bring the body of two decades of research into one unified framework. We proceed in the following steps: First, a brief summary of processability theory is given. Then the theory is used to generate a unifying framework for the development of the specific L2 grammatical system (Swedish). Finally, the new framework is tested in the above-mentioned empirical studies. (Less)

Structural stability of DNA origami nanostructures under application-specific conditions.

Abstract: With the introduction of the DNA origami technique, it became possible to rapidly synthesize almost arbitrarily shaped molecular nanostructures at nearly stoichiometric yields The technique furthermore provides absolute addressability in the sub-nm range, rendering DNA origami nanostructures highly attractive substrates for the controlled arrangement of functional species such as proteins, dyes, and nanoparticles Consequently, DNAorigami nanostructures have found applications in numerous areas of fundamental and applied research, ranging from drug delivery to biosensing to plasmonics to inorganic materials synthesis Since many of those applications rely on structurally intact, well-definedDNA origami shapes, the issue of DNA origami stability under numerous application-relevant environmental conditions has received increasing interest in the past few years In this mini-review we discuss the structural stability, denaturation, and degradation of DNA origami nanostructures under different conditions relevant to the fields of biophysics and biochemistry, biomedicine, and materials science, and the methods to improve their stability for desired applications

The Paderborn University BSP (PUB) library

Abstract: The Paderborn University BSP (PUB) library is a C communication library based on the BSP model. The basic library supports buffered as well as unbuffered non-blocking communication between any pair of processors and a mechanism for synchronizing the processors in a barrier style. In addition, PUB provides non-blocking collective communication operations on arbitrary subsets of processors, the ability to partition the processors into independent groups that execute asynchronously from each other, and a zero-cost synchronization mechanism. Furthermore, some techniques used in the implementation of the PUB library deviate significantly from the techniques used in other BSP libraries.

Predictors of teachers' use of ICT in school --- the relevance of school characteristics, teachers' attitudes and teacher collaboration

Abstract: This paper is based on the research question of what predictors (school characteristics, teachers' attitudes, teacher collaboration and background characteristics) determine secondary school teachers' frequency of computer use in class. The use of new technologies by secondary school teachers for educational purposes is an important factor regarding school and teaching processes. The use of digital media in schools is, among other things, associated with the goal of supporting learning processes and improving the quality of education. This contribution identifies relevant factors by means of multiple regression analyses of the teachers' frequency of computer use for instruction in five countries (the Netherlands, Denmark, Australia, Poland and Germany) to get an idea of how to support the frequency of the use of computers in class. The analyses and findings are based on the International Association for the Evaluation of Educational Achievement (IEA) study of International Computer and Information Literacy Study 2013 (ICILS), which investigates the computer and information literacy (CIL) of secondary school students and the contexts in which students develop CIL in 21 countries. Antecedents concerning school characteristics, teachers' attitudes and teacher collaboration on the process level and background characteristics of secondary school teachers (N = 8.920) are examined in order to gain further insight into the nature and effect of predictors for secondary school teachers' in-class use of information and communications technology. The analyses show that there are more country-specific results than similarities between the countries selected. In all countries, antecedents concerning teachers' attitudes are more relevant for teachers' in-class use of computers than school characteristics or teacher collaboration on the process level.