BRAUNSTEIN 64 



which is utilized in contact sulphuric acid plants. He investi- 

 gated the influence of processes of heat and matter transfer on 

 the speed of contact reactions and selectivity of catalyst action. 

 As of 1961, Boreskov was Director of the Institute of Cataly- 

 sis, Siberian Branch of U.S.S.R. Academy of Sciences. 

 Bibliography: 



Catalysis in Sulphuric Acid Production. Moscow -Leningrad: 

 1954. 



and K. M. Malin and others . Technology of Sulphuric Acid. 

 Moscow-Leningrad: 1950. 



Action mechanism of solid catalysis. Heterogeneous Cataly- 

 sis in the Chemical Industry. Moscow: 1955. 

 Biography: 



M. G. Slin'ko . Georgii Konstantinovich Boreskov (On the 

 50th Anniversary since the date of birth). Zhur. Fiz. Khim., 

 1957, 3i, #4. 

 Office: D. I. Mendeleev Chemico -Technological Institute 



Moscow, USSR 



BRAUNSTEIN, ALEKSANDR EVSEEVICH (Biochemist) 



A. E. Braunstein was born May 26, 1902. He graduated in 

 1925 from the Kharkov Medical Institute. In 1930-1936 he 

 worked as senior scientific worker at the Bakh Biochemical 

 Institute of the People's Commissariat of Public Health of the 

 U.S.S.R. He began working at the All -Union Institute of Experi- 

 mental Medicine in 1936 as Chief of the Section on Metabolism 

 and subsequently, at the Institute of Biological Medical Chemis- 

 try of the U.S.S.R. Academy of Medical Sciences. In 1959, 

 Braunstein became a laboratory Chief at the U.S.S.R. Academy 

 of Sciences Institute of Radiation and Physico-Chemical Biology. 

 He became a Corresponding Member of the U.S.S.R. Academy 

 of Medical Sciences in 1945, and in 1960 a Corresponding Mem- 

 ber of the U.S.S.R. Academy of Sciences. In 1941 he received a 

 Stalin Prize. 



Braunstein' s investigations deal with nitrogen exchange of 

 amino acids and proteins and with enzymology. He discovered 

 the process of enzymatic reamination of amino acids (1937), 

 investigated its biological role, and presented a new view of the 

 assimilation and dissimilation of nitrogen in living and other 

 organisms (1939-1957). He studied other enzymatic transfor- 

 mations of amino acids (1948-1952). He discovered a series of 

 functions of Bg in the transformations of tryptophane oxy -amino 

 acids, and sulphur -containing amino acids (1949-1956). 



