Matej Bel University

About: Matej Bel University is a education organization based out in Banská Bystrica, Slovakia. It is known for research contribution in the topics: Tourism & Fuzzy set. The organization has 721 authors who have published 1497 publications receiving 11573 citations. The organization is also known as: Matej Bel & Univerzita Mateja Bela.

Standardization and the European Standards Organisations

Abstract: Standardization is a relatively neglected aspect of the EU regulatory process and yet it is fundamental to that process and arguably has recently been the key vehicle in making the single market an economic reality. Yet the key standardization bodies in the EU, the ESOs, are scarcely known to the public and seldom discussed in the literature. In this article we redress this imbalance, arguing that standardization and integration are closely related concepts. We also argue that the ESOs have developed a degree of autonomy in expanding the boundaries of standardization and even in developing their own links with the rest of the world. Recent proposals put forward by the European Commission can be seen as an attempt to reduce that autonomy. These proposals emphasize the speed of, and stakeholder involvement in, standards production, which we further suggest are somewhat conflicting aims.

Armenia’s path to democratization by recursive mass protests

Abstract: This study analyses the “Velvet Revolution” of 2018 in Armenia, making a comparison with previous democratization attempts in order to facilitate understanding of some of the long-term tend...

Accurate Nonlinear Optical Properties of Solvated para-Nitroaniline Predicted by an Electrostatic Discrete Local Field Approach.

Abstract: A general computational protocol for accurate predictions of nonlinear optical (NLO) properties of solvated molecules based on the rigorous local field (RLF) approach taking all relevant effects into account is presented. para-Nitroaniline (pNA) was taken as a model NLO system dissolved in cyclohexane, tetrahydrofuran, and 1,4-dioxane. Molecular dynamics (MD) simulations employing either non-polarizable or polarizable force fields were used to generate representative sets of structures of the solutions. The static NLO properties of the solute were calculated at the MP2/aug-cc-pVDZ level of theory with the multiplicative scaling method used to account for the frequency dispersion of the properties. Focusing on the electric field-induced second harmonic generation (EFISH) and hyper-Rayleigh scattering (HRS), a good agreement between calculated results and experimental measurements was achieved with a polarizable force field. While the solvent effects on the vibrational contributions to the static molecular properties are significant, they remain small for both EFISH and HRS. Our results show that the proposed approach yields reliable predictions of dynamic NLO properties of solvated chromophores, which paves a route to further applications of the RLF approach to study a wide range of NLO phenomena in heterogeneous environments.

Minimal sets of fibre-preserving maps in graph bundles

Abstract: Topological structure of minimal sets is studied for a dynamical system $$(E,F)$$ given by a fibre-preserving, in general non-invertible, continuous selfmap $$F$$ of a graph bundle $$E$$ . These systems include, as a very particular case, quasiperiodically forced circle homeomorphisms. Let $$M$$ be a minimal set of $$F$$ with full projection onto the base space $$B$$ of the bundle. We show that $$M$$ is nowhere dense or has nonempty interior depending on whether the set of so called end-points of $$M$$ is dense in $$M$$ or is empty. If $$M$$ is nowhere dense, we prove that either a typical fibre of $$M$$ is a Cantor set, or there is a positive integer $$N$$ such that a typical fibre of $$M$$ has cardinality $$N$$ . If $$M$$ has nonempty interior we prove that there is a positive integer $$m$$ such that a typical fibre of $$M$$ , in fact even each fibre of $$M$$ over a dense open set $$\fancyscript{O} \subseteq B$$ , is a disjoint union of $$m$$ circles. Moreover, we show that each of the fibres of $$M$$ over $$B{\setminus } \fancyscript{O}$$ is a union of circles properly containing a disjoint union of $$m$$ circles. Surprisingly, some of the circles in such “non-typical” fibres of $$M$$ may intersect. We also give sufficient conditions for $$M$$ to be a sub-bundle of $$E$$ .