65 BREKHOVSKIKH 



Bibliography: 



and M. G. Kritsman . Formation of amino acids by way of 

 intermolecular transfer of the amino group. Biokhimiya, 

 1937,^, #2. 



Biochemistry of Amino Acid Exchange. Moscow: 1949. 

 and M. M. Shemyakin. Theory on processes of amino acid 

 exchange, catalyzed by pyridoxine enzymes. Biokhimiya, 

 1953, 18, #4. 



Vitamins of the B Group in processes of amino acid exchange 

 (report). Ukrainian Biochemical Journal, 1955, ^, #4. 

 Office: Institute of Biological Medical Chemistry of the 



USSR Academy of Sciences 

 Solyanka, 14 

 Moscow, USSR 

 Residence: Novoslobodskaya, 57/65 



Moscow, USSR 

 Telephone: Dl 55 56 



^REKHOVSKIKH, LEONID MAKSIMQVICH (Physicist) 



L. M. Brekhovskikh was born May 6, 1917. He graduated in 

 1939 from the University of Perm. In 1953 he was appointed 

 professor at Moscow University, and in 1954 he was made Di- 

 rector of the Acoustical Institute, U.S.S.R. Academy of Sciences. 

 Since 1953 he has been a Corresponding Member of the U.S.S.R. 

 Academy of Sciences and in 1951 he was the recipient of a 

 Stalin Prize. 



Brekhovskikh' s early investigations are on scattering of 

 x-rays in crystals and liquids. From 1942 his main scientific 

 interest has been in acoustics and wave propagation. He investi- 

 gated the propagation of sound and electromagnetic waves in 

 heterogeneous media and developed the theory of wave fields and 

 point sources in layer -heterogeneous media. In particular, he 

 presented a theory on the so-called side and head waves, which 

 play an important role in seismographic surveys. A number of 

 Brekhovskikh' s investigations are in the scattering of sound 

 electromagnetic waves on uneven surfaces. Together with 

 others, he discovered (1946) the super -distance propagation of 

 sound in the sea. 

 Bibliography: 



Reflection of spheric waves from a plane boundary of a 

 section of two media. Zhur. Tekh. Fiz., 1948, 18, #4. 

 Wave diffraction on an uneven surface. 1-2, Zhur. Eksptl. 

 i Teoret. Fiz., 1952, 23, #3 (9), 275-304. 



