Quo vadis Belügyi Szemle? Fókuszban a szakmaiság és a tudományosság

Founded in 1953 and now in its seventieth year, the jubilee edition of the academic journal Belügyi Szemle, entitled "70 years, 70 thoughts", features essays by invited authors.Az 1953-ban útjára indult, immáron hetvenéves Belügyi Szemle tudományos folyóirat jubileumi „70 év, 70 gondolat” című kiadványában megjelent tanulmány olvasható a felkért szerzőktől

Analysis of Public Transport Performance in Budapest, Hungary

In 2001 the European Commission defined the main rules of the expected changes of modal split in the White paper. Modal split is also a crucial question in urban areas, where transport has the greatest effects on living standards and environment. Due to the caused pollution, noise, health effects every stakeholder tries to make urban public transport as efficient as it is possible. This is a theoretical investigation which aims to analyze the production function of Budapest Public Transport in Hungary. In this paper the transport data of Budapest were used to create a model in which the effects of different production factors can be estimated and the public transport performance can be forecasted

Regional Development of the Transportation Systems of the V4 Countries

Abstrac

Electrical property measurements of Cr-N codoped TiO2 epitaxial thin films grown by pulsed laser deposition

The temperature dependent resistivity and thermo-electric power of Cr-N codoped TiO2 were compared with that of single element N and Cr doped and undoped TiO2 using epitaxial anatase thin films grown by pulsed laser deposition on (100) LaAlO3 substrates. The resistivity plots and especially the thermoelectric power data confirm that codoping is not a simple sum of single element doping. However, the negative sign of the Seebeck coefficient indicates electron dominated transport independent of doping. The narrowing distinction among the effects of different doping methods combined with increasing resistivity of the films with improving crystalline quality of TiO2 suggest that structural defects play a critical role in the doping process

The Vartian Collection Part IV. : Geometridae

A bécsi Naturhistorisches Museum lepkegyűjteményében őrzött Eva Vartian-féle gyűjtemény araszolólepke (Geometridae) anyagának tételes feldolgozása. A gyűjteményrész 1353 Geometridae taxon több mint 22000 példányából áll. A könyv ennek a gyűjteményrésznek taxonómiai és biogeográfiai elemzését (beleértve 6 a tudományra nézve új faj leírását), a tételes fajjegyzéket és valamennyi faj és alfaj természetes nagyságú színes képeit (összesen 87 színes táblán) tartalmazza

ChemInform Abstract: Dicobalt Hexacarbonyl Derivatives of Chiral Acetylenes.

(mu(2)-RC(2)R')Co-2(CO)(6) complexes are prepared where R not equal R' and one of these substituents is a chiral organic group. The structures of the 11 complexes (10 new) range from the simplest possible chiral acetylenic hydrocarbon derivative (S-3-methyl-1-pentyne 1a) to ethynylsteroid (1f, 1g, 1h) and ethynylcodeine (1i, 1j, 1k) derivatives. The CD spectra are reported and the results are analysed in terms of a quadrant rule. The CD spectra show that in all complexes the Co-2(CO)(6) fragment of the molecule gets chirally perturbed. The reasons for the chiral perturbation include apolar repulsing (dominant for the hydrocarbon acetylenes) and polar attractive (''autosolvation''; dominant for acetylenes with polar hetero-atom containing substituents) forces