180 éve alakult meg a pápai kollégiumi képzőtársaság

A Pápai Református Kollégium tagjai [...] "elhatározták ezért, hogy „ezen társaság is előtörténetét, mostani szerkezetét röviden összefoglalva a nevezett hirlapban [Athenaeum] terjessze elé a közönségnek ismertetésül". [...] Szalay Gábor cikkét szöveghűen közöljük, elhagyva a mai helyesírás szerint szükségtelen mellékjeleket. A „cz” kettős betűt mindenütt „c”-re javítottuk, a hiányzó hangokat [ ]-ben pótoltuk. Az írás megjelenési adatai: SZALAY Gábor: A dunántúli ref. főiskolai képző társulat. = Athenaeum. Tudományos, criticai, szépirodalmi lap. 1843/2. kötet, 5. füzet, 207–209

Bound and unbound states of few body systems

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Electron collision studies on the CH2+_2^+ molecular ion

Calculations are performed for electron collision with the methylene molecular ion CH$_2^+$ in its bent equilibrium geometry, with the goal to obtain cross sections for electron impact excitation and dissociation. The polyatomic version of the UK molecular \Rmat codes was used to perform an initial configuration-interaction calculation on the doublet and quartet states of the CH$_2^+$ ion. Subsequently, scattering calculations are performed to obtain electron impact electronic excitation and dissociation cross sections and, additionally, the bound states of the CH$_2$ molecule and Feshbach resonances in the $e$-CH$_2^+$ system

Study of bound and resonant states of NS molecule in the R-matrix approach

The bound and resonance states along with corresponding autoionization widths for nitrogen sulphide (NS) molecule are determined using electron NS$^+$ cation scattering calculations. The calculations are performed for $^2\Sigma^+$, $^2\Pi$ and $^2\Delta$ total symmetries using the {\em ab initio} R-matrix method for both bound and continuum states. Calculations are performed on a grid of 106 points for internuclear separations between 1.32 and 3 \AA. The resonance states yield dissociative potential curves which, when considered together with their widths, provide input for models of different electron-cation collision processes including dissociative recombination, and rotational and vibrational excitation. Curves and couplings which will lead directly to dissociative recombination are identified