Seasonal dynamic pattern analysis in service of climate change research. A methodical case-study - monitoring and simulation based on an aquatic insect community

Our aim was to approach an important and well-investigable phenomenon – connected to a relatively simple but real field situation – in such a way, that the results of field observations could be directly comparable with the predictions of a simulation model-system which uses a simple mathematical apparatus and to simultaneously gain such a hypothesis-system, which creates the theoretical opportunity for a later experimental series of studies. As a phenomenon of the study, we chose the seasonal coenological changes of aquatic and semiaquatic Heteroptera community. Based on the observed data, we developed such an ecological model-system, which is suitable for generating realistic patterns highly resembling to the observed temporal patterns, and by the help of which predictions can be given to alternative situations of climatic circumstances not experienced before (e.g. climate changes), and furthermore; which can simulate experimental circumstances. The stable coenological state-plane, which was constructed based on the principle of indirect ordination is suitable for unified handling of data series of monitoring and simulation, and also fits for their comparison. On the state-plane, such deviations of empirical and model-generated data can be observed and analysed, which could otherwise remain hidden.

Diskurzuselemzés a politika- és vezetéstudományban (Discourse analysis in the political and management sciences)

A XX. század második felében lejátszódó nyelvi fordulat révén egy újfajta posztmodern irányzat jelent meg a társadalomtudományok területén. A diskurzuselméleti megközelítésmód sajátos nézőpontjával az 1990-es évekre már diszciplínateremtő igénnyel is fellépett. Az új tudományos szemlélet számos társadalomtudományi területen jelent meg. Jelen tanulmány a különböző elméleti irányzatokat és a hozzájuk kapcsolódó módszereket tekinti át, és célja a diskurzuselemzés alkalmazhatóságának bemutatása a politika- és a vezetéstudományok területén. ____ Due to a new linguistic revolution occurred in the second half of the twentieth century new post modern tendencies appeared in the field of social sciences. Discourse theory with its unique perspective has succeeded in building up a discipline at the 1990s. This new scientific approach has appeared in several social sciences. This study surveys different theoretical trends and related methods and aims to demonstrate the applicability of discourse analysis in the field of political and management sciences.

Google’s Antitrust Cases Competition Analysis in New Economy Markets

Today, global economic performance largely depends on digital ecosystems. E-commerce, cloud, social media, sharing economy are the main products of the modern innovative economic systems which are constantly raising new regulatory questions. Meanwhile the United States has an unimpeachable dominance in innovation and new technologies, as well as a large and open domestic market, the EU is only recently discovering the importance of empowering the European digital economy and aims to break down its highly fragmented cross-border online economic environment. As global economy is rapidly becoming digital, Europe’s effort to create and invest in common digital market is understandable. The comprehensive investigations launched by the European Commission into the role of social network, search engine, or sharing economy internet platforms, which are new generation technologies dominated by American firms; or the recent decision of the Court of Justice of the European Union declaring that the Commission’s US Safe Harbor Decision is invalid1 might be considered as part of an anti-American protectionist policy. However, these measures could rather be seen as part of a broader trend to foster European enterprises in technology developments.