A widely used approach to computability of real functions is the one in Grzegorczyk’s style originating from [1]. This approach uses computable transformations of infinitistic names of real numbers, as well as general quantifiers over these names. Other approaches allow avoiding the use of such names at least in some cases. An approach of this other kind is, for instance, the one of Tent and Zi...

We review part of our recent ab initio molecular dynamics study on the Ti-based Ziegler-Natta supported heterogeneous catalysis of α-olefins. The results for the insertion of ethylene in the metal-carbon bond are discussed as a fundamental textbook example of polymerization processes. Comparison with the few experimental data available has shown that simulation can reproduce activation barriers...

Grainger, Dufau, Montant, Ziegler, and Fagot (2012a) taught six baboons to discriminate words from nonwords in an analogue of the lexical decision task. The baboons endorsed novel words more readily than novel nonwords, and had trouble rejecting nonwords that were orthographically similar to learned words. In a subsequent test (Ziegler, Hannagan, et al., 2013), the same animals demonstrated the...

Martin Eiden, Ariel Vina-Rodriguez, Bezeid O. El Mamy, Katia Isselmou, Ute Ziegler, Dirk Höper, Susanne Jäckel, Anne Balkema-Buschmann, Hermann Unger, Baba Doumbia, and Martin H. Groschup Author affiliations: Friedrich-LoefflerInstitut, Greifswald-Insel Riems, Germany (M. Eiden, A. Vina-Rodriguez, U. Ziegler, D. Höper, S. Jäckel, A. Balkema-Buschmann, M.H. Groschup); Centre National de l’Elevag...

Table of content 1 E2 and progesterone effects: the donor-egg IVF lesson * 1.1 Only E2 and progesterone are necessary for optimal receptivity * 1.2 The follicular phase: sufficient E2 priming * 1.3 The luteal phase: progesterone induces a sequences of transformation * 1.4 Endometrial glands and the stroma: two steps in the sequence of endometrial changes. * 1.5 E2 to progesterone ratio * 2 Regi...

Gas phase polymerization of propylene was carried out in a semi-batch minireactor using a commercially supported Ziegler–Natta (ZN) catalyst. The influence of variables including monomer partial pressure, external electron donor, reaction temperature and time on the particle morphology and size distribution was investigated. Generally, more uniform fragmentation and particle densities were obta...

AbstractA Composition control system is discussed in this paper in which the PID controller is tuned using Genetic Algorithm & Ziegler-Nichols Tuning Criteria. Tuning methods for PID controllers are very important for the process industries. Traditional methods such as Ziegler-Nichols method often do not provide adequate tuning. Genetic Algorithm (GA) as an intelligent approach has also been wi...