MATULIS 234 



He proposed the theory of the so-called non-local fields and es- 

 tablished the necessary conditions which had to be satisfied by 

 the theory of extended particles. Other investigations of Markov 

 deal with the study of particles and antiparticles, interaction of 

 hard gamma-quanta with matter, and the systematics of ele- 

 mentary particles. 

 Bibliography: 



'Tetra-dimensionally extended' electron in a relativistic 

 quantum area. Zhur. Eksptl. i Teoret. Fiz., 1940, 10, #12. 

 One criterion of relativistic invariance. Zhur. Eksptl. i 

 Teoret. Fiz., 1946, 16, #9. 



Mon-local fields and complex nature of 'elementary' parti- 

 cles (dynamically deformable formfactor). Uspekhi Fiz. 

 Nauk, 1953, 51, #3. 



Hyperons and K-Mesons. Moscow: 1958. 

 Office: P. N. Lebedev Physics Institute of USSR Academy 



of sciences 

 Leninskii Prospekt, 53 

 Moscow, USSR 

 Residence: 3ii Akademicheskii pr., 35 



Moscow, USSR 

 Telephone: B7 53 07 



MATULIS, YUOZAZ YOUZASOVICH (Chemist) 



Yu. Yu. Matulis was born March 31, 1899. He has been an 

 Academician of the Lithuanian S.S.R. Academy of Sciences 

 since 1941 and in 1946 became President. In 1946 he was elect- 

 ed Corresponding Member of the U. S.S.R. Academy of Sciences. 

 He became a member of the Communist Party of the Soviet 

 Union in 1950. In 1945 Matulis was an Honored Scientist of the 

 Lithuanian S-S.R. He has been a Deputy to the U. S.S.R. Supreme 

 Soviet, third through fifth convocations and Chairman of the 

 Lithuanian S.S.R. Society for the Propagation of Political and 

 Scientific Knowledge. 



The main investigations of Matulis are concerned with the 

 photochemistry, electrochemistry, and kinetics of reaction in 

 solutions. He is the author of a textbook on colloidal chemis- 

 try, and handbook on physical chemistry, and also the author of 

 a number of articles on questions of the influence of surface- 

 active substances on the electrodeposition of metals. 

 Bibliography: 



Text of Practical Physical Chemistry. Kaunas: 1948. 



Colloid Chemistry. Kaunas: 1947. 



