BULLETIN OF THE LEBEDEV PHYISICS INSTITUTE
P.N.Lebedev Physics Institute of the Russian Academy of sciences

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1. Title:
LORENTZ COVARIANT APPROACH IN THE GRAVITATION THEORY
Authors:
M.A. Mikaelyan.



Abstract:


2. Title:
VARIATIONS OF CHARGED PARTICLE FLUXES IN THE EARTH TROPOSPHERE
Authors:
G.A. Bazilevskaya, M.B. Krainev, V.S. Makhmutov, A.K. Svirzhevskaya, N.S. Svirzhevskii, Y.I. Stozhkov.



Abstract:
The results of measurements of charged particles in the troposphere of polar and middle latitudes obtained since 1957 are presented. While in stratosphere the fluxes of secondary cosmic rays reproduce well the variations of primary cosmic radiation, mostly the 11-year cycle associated with solar activity, in troposphere other variations are added which are presumably of atmospheric origin. In particular, increased amplitudes of variations were observed before 1973 and after 1991. In the Northern hemisphere, the variations contain the annual wave with maximum in the winter period. The wave phase corresponds to the expected temperature effect, but in the 1990s its amplitude was several times larger than expected.


3. Title:
VARIATION IN MAGNESIUM ISOTOPIC COMPOSITION DURING ZONE RECRYSTALLIZATION OF MgCl2∙6H2O
Authors:
O.S. Andrienko, N.B. Egorov, I.I. Zherin, D.V. Indyk, M.A. Kazaryan.



Abstract:


4. Title:
ORTHO−PARA SPLITTING OF THE EXCITON GROUND STATE IN A STRONG MAGNETIC FIELD
Authors:
N.M. Vildanov, A.P. Silin.



Abstract:


5. Title:
NEW COMPOSITE MATERIAL BASED ON POLYCARBONATE AND LONG-PERSISTENT PHOSPHOR
Authors:
O.S. Andrienko, V.A. Bolshukhin, A.N. Georgobiani, N.P. Datskevich, V.I. Demin, M.A. Kazaryan, A.V. Krotov, A.M. Leontovich, T.F. Limonova, N.N. Melnik, V.I. Sachkov, S.V. Semendyaev, N.P. Soshchin, Y.P. Timofeev.



Abstract:


6. Title:
ATOMIC-FORCE MICROSCOPY STUDIES OF THE COMPLEXES OF DNA AND SINGLE-WALL CARBON NANOTUBES
Authors:
G.K. Chudinova, I.A. Nagovitsyn, M.A. Kononov, I.A. Maslyanitsyn, V.D. Shigorin, V.V. Savranskii.



Abstract: