Sustainable bilingualism and language shift : Longitudinal research in Romanian– Hungarian bilingual Kétegyháza (Hungary)

In this paper, I introduce the longitudinal method in general, and more specifically, the method applied in a two-decade-long language shift research project conducted in a Romanian–Hungarian bilingual village, Kétegyháza (hereinafter LongBiLing: longitudinal study on bilingualism). I will primarily present the language choice changes occurring in the first decade (1990–2001) but I will also give a short review of the findings comparing the two decades. The aim of the project is to find out at what stage the Romanian-Hungarian language shift process is in the Hamers and Blanc’s (1989) unidimensional model of language shift and to what extent the process can be considered gradual (Mesthrie 2001). In a previous article I sought to find out in which bilingual national minority (out of the six) in Hungary sustainable bilingualism was the strongest (Borbély 2015). In this paper, I discuss language use domains (25 language choice situations) in a local community of Hungary’s Romanian national minority investigated with a longitudinal method. The aim was to learn about the differences among the linguistic domains in order to find out in which domain bilingualism was the most sustainable

THERMOANALYTICAL RESEARCH CARRIED OUT AT THE INSTITUTE OF INORGANIC CHEMISTRY OF TECHNICAL UNIVERSITY OF BUDAPEST

Thermoanalytical studies have been going on at the Institute of Inorganic Chemistry for nearly 20 years. The present paper wishes to introduce the results of three main fields of the investigations. Primarily, the goal of our studies was the production of complexes of transient metals with ligands containing different N-atoms and also the study of the obtained compounds with other analytical methods. On the other hand the thermal stability of inorganic polymers (especially the silicone-rubber and polyethylene) was examined, ageing estimations were done, and their dependence on the method of their production and on the pre-treatment processes modelling their possible application circumstances were investigated. Finally, the application of thermal investigations to solve various industrial problems was introduced, particularly in the territory of quality-tests of materials