SCIENTIFIC INFORMATION REPORT

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~ ~I r C I N r U K rII 1 U l U i n I r o l l V v i- 1 5 Approved Fob Release 19 09/0 A DP8 0 4 0 0100 HART 23 SEPTEMeEW1.96.0 , . 1 'OF i- 7tkp ed For Release 1999/09/08 : CIA-RDP82-00141 R00010063008q-1891 1-54 CENTRAL INTELLIGENCE AGENCY SCIENTIFIC INFORMATION REPORT 23- September 1960 Distributed Only By U.S. DEPARTMENT OF COMMERCE OFFICE OF TECHNICAL SERVICES WASHINGTON 25, D.C. Issued semi-monthly. Annual subscription $28.00 ($4 additional for foreign mailing). Single copy $2.75. Approved For Release 1999/09/08 : CIA-RDP82-00141 R0001 00630001-4 Approved For Release 1999/09/08 : CIA-RDP82-00141 R0001 00630001-4 Use of funds for printing this publication approved by the Director of the Bureau of the Budget July 31, 1958. Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100630001-4 Approved For Release 1999/09/08 : CIA-RDP82-00141 R0001 00630001-4 PLEASE NOTE Tliis report presents unevaluated information extracted from recently received publications of the USSR and Eastern Europe. The information selected is intended to indicate current scien- tific developments and activities and is disseminated as an aid to research in the United States. SCIENTIFIC INFORMATION REPORT Communications 23 Components 24 Instruments and Equipment 26 Materials 29 Wave Propagation 32 IV. Engineering 33 Automatic Control Engineering 33 Electrical Engineering 39 Mechanical Engineering 40 Mining Engineering 41 V. Mathematics 43 Table of Contents Biology Biochemistry Microbiology Page 1 Chemistry 7 Fuels and Propellants 7 Industrial Chemistry 10 Inorganic Chemistry 12 Nuclear Fuels and Reactor Construction Materials 14 Organic Chemistry 19 Radiation Chemistry 21 Radiochemistry 22 III. Electronics 23 Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100630001-4 Approved For Release 1999/09/08 : CIA-RDP82-00141 R0001 00630001-4 Page Aerospace Medicine Behavioral Science Epidemiology Experimental Medicine Immunology and Therapy Oncology Pharmacology and Toxicology Phye iology Public Health, Hygiene, and Sanitation Radiology Veterinary Medicine Miscellaneous VII. Metallurgy Physical Metallurgy Production Metallurgy VIII. Physics Georhysical Instruments Nuclear Physics Theoretical Mechanics IX. Miscellaneous 51 82 82 83 85 85 36 X18 91 Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100630001-4 Approved For Release 1999/09/08 : CIA-RDP82-00141 R0001 00630001-4 1. BIOLOGY Biochemistry 1. Shifts in Energy Levels Linked to Radio-Protective Capacity of Substances "Energy Levels of Metastable States of Biological Objects and the Mechanism in the Action of Certain Radio-Protective Sub- stances," by I. I. Sapezhinskiy and N. M. Emanuel', Institute of Chemical Physics, Academy of Sciences USSR; Moscow, Doklad Akademii Nauk SSSR, Vol 132, No 6, 21 Jun 60, pp 1441-17X3 In previous research by the-authors (DAN, Vol 131, No 5, 60, 1168), it was shown that the action of gamma irradiation on proteins, DNA, and RNA leads to the rise of metastable (biradical) states which are analogous to those observed due to photostimulation of these important chemical cell components. In this research, the authors studied the energy levels of metas- table states to find the pathways of energy migration and the most vul- nerable sites in various complex biological structures, and also, the fact that such research may point to possible lines for research on radio-protective substances. Results of various tests are discussed and are presented in a table. They show the close coincidence of the wave lengths (1+93, 495) which correspond to maximum phosphorescence for DNA, radio-protective agents, and also for the propyl esters of gallic acid. The authors pre- sume that the transfer of energy from the triplet level of DNA to the triplet energy levels of the protective substances, as a result of which injury to DNA is substantially diminished, is the most probable explanation. In doing this, the molecule of the protective substance is transferred from the basic singlet level to the triplet level. Preliminary tests indicate that the addition of propyl gallate and isopropyl gallate to a protein solution substantially diminishes the life span, (t), of the metastable states; and the extinction time of protein photophosphorescence, in which (t) is diminished by a factor of 1.5-2.0, is clearly evident. Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100630001-4 Approved For Release 1999/09/08 : CIA-RDP82-00141 R0001 00630001-4 2. Joint Presence of Cytochromes and of Succinic Dehydroaenese Revealed in Cytoplasmic Membranes "The Cytochrome System in the Cytoplasmatic Membranes of Micrococcus Lysodeikticus,".by N. S. Gellman, M. A. Lukoyanova and A. I. Oparin, Institute of Biochemistry imeni A. N. Bach, Academy of Sciences USSR; Moscow, Biokhimiya, Vol 25, No 3, May/Jun 60, pp 482-486 The purpose of the research described was to trace the components of succinic oxidase in the cytoplasmatic membranes and to explain their connection with succinic dehydrase, the primary dehydrase of succinic acid. C PYRG H-fhe authors present the following conclusions: "Cytochromes of the b, c, and a groups were detected in the cytoplas.. matic membranes of the cells of bacteria Micrococcus lysodeikticus. The joint presence of cytochromes and of succinic dehydrase indicates the localization of the succinic oxidase system in the membranes. The sup- pression of succinic oxidase activity during cell lysis is probably linked with a disruption in the organization of the enzyme complexes and with the disruption of the terminal link -- the cytochrome oxidase." Microbiology 3. Studies of the Diffusion Factor Affecting B. pestis "The Problem of the Relationship of the Plague Microorganism to Hyaluronic Acid and the Presence of a Diffusion Factor," by I. V. Domaradskiy, G. A. Yaromuk and Z. I. Vasii?yeva, Irkutsk Scientific Research Antiplague Institute; Moscow, Zhurnal Mikrobiolo ii E idemiolo ii i Immunobiolo ii, Vol 31, No 7, Jul 60, pp 113-117 The significance of the diffusion factor (reported by Korobkova) in the immulopathogenesis of plague is discussed. In considering various pathogenetic factors affecting B. pestis, the authors included a study of hyaluronidase, which is reported in this article. They found that theoretical results disagreed with those of Korobkova. The presence of hyaluronidase was determined in 20 strains of B. pestis, one atypical strain of Streptococcus, and strains of Staphy- lococcus aureus and Cl. perfringens. The B. pestis strains were avirulent strains EV 1, 17 50.74; and avirulent strains TsD, 94.-96, 119, 125, 143, 435, i83, 485-188, 1435, and 1525. The McLean method of hyaluronidase determination was employed, with modifications pro- posed by Mogilevskiy, Kogan and the authors, which eliminated a number of drawbacks inherent in the Smirnov method. Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100630001-4 Approved For Release 1999/09/08 : CIA-RDP82-00141 R0001 00630001-4 The gao gangrene pathc'g n was cultured on a Kitt.-Ta:rozzi medium; Huttinger and Martin media were used for culturing three other species. D. pectti.s was cultured on liquid and solid media, and Streptococcus and Staphylococ::ua, on r{olid media containing 5% blood. Culturing on solid media was rv axried out for 2448 hours; on liquid, for 20. When. rolid-?, media were used,, the microbial cell coancent rations were 2109 and 5.10.L0 per ml. CPYRGHT The following conclusion is offered.- "Experiments with standard and I'rerlhly isolated B. pestis strains,, caawried out on a parallel, basis with three species of microorganisms known to form hya1uronidase afforded a basis for stating that B. pestis does not contsin the enzyme hyaluronideze, which causes depolymerization of hyaluron.i.z! acid in vitro end fa,cstl.itat,es otai.n diffusion in vivo." 4.. Influenza VY sus Re roducsPd. From RICA. "ReprcduaAion of Influenza Virus With the Aid of Viral Ribo- nucleic Acid." Report, III. Morphological Aspects of the Virus Reproduced," by R. Port:)c:sii.a, S. Ihimi.tre,scu, N. I. Ionescu,, I. Samuel, V. Boeru; Buchareht, _Cnrun:tceri le Academies Republicii P ultire Ro ir..e:, Vol :LO, No 5, May o, p ' The author' used an electron mieroeccopr_ tc. study the morphology of influenza virus obtained from RNA extra,r::ted frxn one strain of pure type A antigen. The morpho1.r.,g1x:aa:L picture a,rd the dimensions of the elementary bodies of the strain obtained in this mwnner di.d. not differ, on the whole, from those of the iaaitist-1 strain. The a, erage size of the virus obtained in the first 'ulture and. al ,.,P of the vc1rue obtained after the first passage on chick embryo u!e,s 100.'7t0.-7 m ? . These values are the same as those of the initial virus from which the RNA vas ckf..alned. Serol,?gi.c .:t,n-,restlgat;ions substantiated. the :antigenic similarity of the strain prepared from RNA to the in{t; sl strain.,? The morphological data obtained by the autho:rrs -r---rifted their suppe-)aitiorz that a receptive cell synthesize; a, ccmpiete influenza viii; from the nucleic acid mole-, cute introduced. Three graphs shoo the fregi eno.y of appears re of elementary bodies of the initial tatra.iz3,, of the viral RNA, and of the final virus . Four electron photoricr. ographr: of the vxaxb:,uia elemerat,axy bodies are included. -3- Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100630001-4 Approved For Release 1999/09/08 : CIA-RDP82-00141 R0001 00630001-4 5 . r oot-.anc'l.-Mouth Virus Studies CPYRGHT "The Problem of the Modifiability of Types of Foot-and-Mouth Disease Virits," by V. I. Kiridyakov and S. M. Filippovich; Naaledstvennost' i Izmenchivost' Rasten , Zhivotnik i Mikroor- gan1zmcv (Heredity and Modifiability of Plants) Animals and Microorganisms), 1959, pp 354-359 (from Referativnyy Zhurnal Biologiya, No 8,25 Apr 60 Abstract No 33593, by G. A. Koslov- ski~y "This review of the authors' research presents data collected for 20 years (1937-1959) on types and variants of foot-and-mouth disease virus isolated in Kazakhstan and neighboring areas. It was established that types 0 and C foot and.-mouth virus c .i,.sts for a crmparatively brief period under natural epizootic conditions, changing into variants of type 0 or OA. It was determnined by observation of foot-and mouth disease epizootic, that the repeated entry of the virus into the immune animal organism creates specific conditions for metabolism which makes possible the formation of new antigenic properties of the virus. In experiments on guinea pigs and cattle, the modification of type characteristics of the foot-and-mouth virus is achieved by repeated introduction of the same strain into an immune animal. Modification of the foot-and-mouth virus occurred in experiments on guinea pigs with standard type strains: with type 0, after 16-35 infections; with type A., after 9-49 infections; with type C. after 5-9 infections; with vH,riart O, af"ter. 15-27 infections; on cattle: with type 0, after 10-11 infections; with a variant of type 0, after 3 infections; with a variant of type A2, after 3-4 infections; with type C, after 4 infbctions. Vaxdations of Ta vines depended on the species of the animal and the immuno)ogical condition of the organism. Modification occurred mote rapidly in c xtEle than in guinea pigs; in one immune organism, several strains of virus with different antigenic properties., which were pre- served without. change for a long time., wer- obtained by repeated infec- tion with the same type of virus." 6. Dec:omposition of Foot-and-Mouth Virus in Tissue Culture CPYRGHT "The Dynamics of Decomposition of the Foot-and-Mouth Virus in Single-Layer Cultures and. Suspensions of Trypsir_ized Calf Kid- ney Tissue," by V. A. Sergiyev and M. I. Yashenkina, Dokl. VASKhNIL (Reports of the All-Union Academy of Agricultural Sciences imeni Lenin), No I+, 1959, pp 16-18 (from Referativnyy Zhurnai Biolo rya, No 2, 25 Jan 60, Abstract No 4985, by B. F. Semenov) "Single-layer cultures or cell suspensions of trypsinized calf kidney tissue were infected with a swine strain of type A foot-and-mouth virus adapted to calf kidney cells. In the one-layer culture liquid, the highest Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100630001-4 A P HFbr Release 1999/09/08 : CIA-RDP82-00141 R0001 00630001-4 viruu titer (106.5 to 107'5 ID50 per ral) was observed within 24 hours after the beginning of the experiment; during the next 4-6 hours it remained at the level attained, but decreased sharply after 72 hours (10L0 to 1026 ID50 per ml). The maximum quantity of virus appeared in the cell suspensions within six to eight hours after infection; the titers decreased after 12 hours. It was shown that the one-layer culture cells remaining intact 24 hours after the addition of infectious material continued to produce virus after replacement of the medium, but in very limited amounts." 7. Cholera Vaccine Production Studied "A Study of the Technological Process of Cholera Vaccine Pro- duction by the Deep Method," by Z. Ye. Taranyuk, Sb. Tr. Gor'- kovsk. N.-I. In-ta Epidemiol. i Gigiyeny (Collection of Works of the Gor'kiy Scientific Research Institute of Epidemiology and Hygiene), No 3, 1959, pp 70-80 [from Referativn Zhurnal Khimiya -- Biologicheska a Khimiya, No 6, 25 Mar 60, Abstract CPYRGHT No 702] "The possibility of culti..ring Vibrio cholerae in an aerated liquid culture medium is indicated. The greatest number of microorganisms are reproduced in seedings of Vibrio cholerae in bouillon, the polyfabricate of which contains 300-500 mg% amino nitrogen. Cultures of different ages, cultured under different conditions, can be used as seeding material. The culturing of Vibrio cholerae in a reactor can be continued for not more than 12 hours; after 12 hours the intensity of cell proliferation diminishes. It is demonstrated that the more microbial cells the initial culture contains, the higher its immunogenicity. In 56.6% of the microbial suspensions, the content of microbial bodies decreased from 10 to 70% after treatment with formalin with respect to the initial number of microorganisms. An increase in the amount of formalin up to 1% during sterilization of microbial suspen- sionsof Vibrio cholerae minimizes the decrease in the standard of microbial suspensions prepared from certain strains of Vibrio cholerae and does not affect the immunogenicity of the vaccine." Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100630001-4 Approved For Release 1999/09/08 : CIA-RDP82-00141 R0001 00630001-4 d. Role of I 'roteins and Nucleic Acids in Heredity of Virus Characteristics CPYRGHT "Genetic Problems in virology," by K. S. Sukhov, Nasledstvennost' i Izmenchivost' Rasteniy, Zhivotnykh i Mikroorganizmov Heredity and Modifiability of Plants, Animals and Microorganisms), 1959, pp 161-168 (from Referativn Zhurnal Biolo i a, No 8, 25 Apr 60, Abstract No 33564 "This article is a critical review of the role of proteins and nucleic acids in the determination of inherited characteristics of viruses. Verifica- tion of the fact that bacteri.ophages and pure viral RNA and DNA completely devoid of protein can stimulate the infection process does not yet have a definitive experimental basis. It has been proposed that the internal pro- tein observed in tobacco mosaic viras is a nonremovable component of the virus, without which its further development and replication is impossible. The author calls such a structure a 'generative nucleoproteidI." Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100630001-4 Approved For Release 1999/09/08 : CIA-RDP82-00141 R0001 00630001-4 II. CHEMISTRY Fuels and Propellants 9. Detonation Parameters of TNT - Hexogen) Mixtures "Parameters of the Detonation of Trinitrotoluene-Hexogen Mix- tures," by A. N. Gremin and G. A. Adadurov, Institute of Chemical Physics, Academy of Sciences USSR; Moscow, Izvestiya Akademii Nauk SSSR-Otdeleniye Khimicheskiy Nauk, Nob Jun 60, pp 1130-1131 It was established that the index of the polytropi.c curve of the explosion for mixtures of trinitrotoluene with hexogen can be calculated from the known values of this, index for the individual components. 10. Kinetics of the Thermal Decomposition of Dinitr9?;ydiethy1nitrM9tU_%. "Kinetics of the Thermal Decomposition of Dinitroxydiethy3mdi '?'-_7_ tramine," by F. I. Duobovitskiy,. I. Rubtsov, V. V. Barzykin, and G. B. Manelis, Institute of Chemical Physics, Academy of Sciences USSR; Moscow, Izvestiya Akademii Nauk SSSR - Otdeleni Khimicheskiy Nauk, No 6 , Jun 60, pp 1126-1128 The kinetics of the thermal decomposition of dinitroxydiethylnitrami,ne were investigated by three different methods, viz., on the basis of gas evolution, the changes in weight, and the heat that was evolved. It was established that the reaction is one of the first order. The velocity constants of the reaction were determined. The energy of activation and the exponential factor were calculated. 11. Chain-Thermal Propagation of Flames in the Case of Two Active Centers "The Theory of Chain-Thermal Propagation of Flame; Part I Two Active Centers" by L. A. Lovachev, Institute of Chemical Physics, Academy of Sciences USSR; Moscow, Izvesti a Akademii Nauk SSSR - Otdeleniye Khimieheski.kh Nauk, No6,Jun 60, pp 1022-1029 For a chain reaction with two active centers which successively react with the initial substances and regenerate each other, a relation has been derived on the basis, of which the velocity of flame propagation can be determined under consideration of the diffusion of these active centers and al,3o of the rate'of generation and velocity of quadratic termination of chains. The theoretical values of the velocity of flame propagation -7- Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100630001-4 Approved For Release 1999/09/08 : CIA-RDP82-00141 R0001 00630001-4 have been calculated for two canes of the conthLucctioti o:C c0t1orine-1aydrogen mixtures o The va].'eiea were fou.'i't to 'be i!~ ftrt,i;jsfeei;c,'ry agreement with experimental data. The chr?racter*,, atJ cc c.: the mu7a,tio:ic between the velocity of flame propagation and the pressure and temperature of combus- tion have been cons idered :Croce a qualitative sta.idpoint, starting from a aolutiots in whic, the diffusion of two active centers was considered &:.d cornpared with the results the; follow front the analysis of e simplified scheme postulating an v tivr~ center of one species only. 12. MechanLsm of gatioi2 o! ]3t :_' om? rz i1eterogeneous Exothe n a,1 "Relaxation Mec',oatir3t1 of Propagation of BLl3:'n::'ct3 .tn - el.e ogen-ous Exothermal Systamo : Par. 2" by Z. 1. Fur (Loninarrad,) ; Moscow, Zhurnal Fi; icheskoy Vol 34, No 6, Sun 60, pp 1299-1306 The hypothesis proposed, z'ela't:'r. g the velocity of p'ropagat. o:r. of burn- ing with the :neat tra s:Ce;? in 'the condensed phase and only ; nci i ractly accounting for the '?S ':1.^'~;:? cF~ of -L-!,.e cher:!tical react'i ons over the temperature of combustion TB acid the tertpe::?a'';u:7a of the reaction p.-codwcts T , made it possible to give a c;yrste:ttat::c ex-planation of tic Phenomena obse::'ved duz'i,r:g the 'Narni:.ig of s:-)me belie;'o,s;eneoT, exoth.e 'tai s1?s'L?ernr3, 9.. cluc?ing phenomena that L!,! not l rz~nd t'aef s ;? v eS to :i nto2 Iretat' oil by theories ralating the velocity of Fr3pagatio:?, oy burniniT only frith chemical re- actioil kinetics. Calcu"Le:P,ilx1 carries. (iY', w:1- h. t,,!'!e aid of the fo:cmulas obtained 'ti:i.ttl P-1-1. l. this Tlaka6 it ^Ia.GO::E3~~..: to C;rkleC?t i^'d,t the l'1C1CtG'~ for tit? proposed mecnaa.:nism of 'D'ram n car 3'E f3 pe..~ ..t. ie ' t + - . ,~ , PrOC?- s e ..;1 L e:st t_-, the Fbc.,.,t. )r -syc~:-. esses teki:3g place Li :thew s"yrste o . At the sartr' 1;i iCCe tole h.-put'netjs :i..l'Go1 vas t? 111119n r o::, assaniptions that do ?.iot have a physice::. bas-la. That means thvt it re- quires f:rther Ci'3 v I::lojyi - t'..i t a Cow :ra,iz, ad of C~'!li"'Lon e 011ye'_"UF'Ci ) nPast be t e ;?1iiJ..L u for x -- - co. We assume that %0 "(u)" 0 and that 41(u) has continuous derivatives up to the fourth order. Several theorems were shown valid without the assumption that t) "(u) # 0. 67. It Cycle for a System of Two Nonlinear Differential Equations "Existence of a Limit Cycle for a System of Two Nonlinear Differential Equations," by S. A. Markosyan, Leninakan Pedagogical : ' :.titute imeni M. Nalbandyan; Yerevan, Doklady Akademiya Nauk Armyanskoy SSR, Vol 30, No 1, May 60, PP 13-18 In the present work sufficient conditions are established by a "geometric method" for the existence of a limit cycle of a system the form d = If(x)+ (9(Y) ] P(x, Y) (1) kY : [g(x)+ *(Y)] Q(x, Y). at - 1 - Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100630001-4 Approved For Release 1999/09/08 : CIA-RDP82-00141 R0001 00630001-4 One partial case of this ayutun ic; also conHidor. ed. The problems of existence of limit cycl -'s for the syeitcm (1) with. (y) - y, q(x) A x were considered in the works. by the author apps sr-- ing in DAN Arm SSR, Vol 23, No 4, 1956, pp 15,3-1.59 cut Izve-, t;i' Vysshilth Uchebnyh Zauedeni.y, Matematika, No 2, 1959, pp 114-121. In the present work it is assumed that the origin of coordinates for the system (1) is a unique singular point on the entire plar.ie and that the right sides, of the equations in question are defined, continuous on the entire plane, and satisfy the L.psch~.tz eor:?dition in every bounded fart of that plane. Existence of the limit cycle is proved with the help of the known theorem of Bendictson.. The limit cycle always exists in a to ;-shaped.region not containing the singular, point, through the bound- o1 which the integral. curves ocdy pass or only emerge. In this ca5ou the inner boundary of the ring may coincide with the singular point. (. 8. Expansion of a Boundary Value Problem for an L+tegrrodifferential. Equation in Terms of Eigenfuxactiona "Expansion in terms of Ei}zenfunctions of a Boundary Value Problem for an Integrodifferential Equation :Having a Retarded Argument," by A. B. Nersesyan, Institute of Mathematics and Mechanics, Academy of Sciences, Armenian SSR; Yerevan, Izvesti Akadc. rii Nauk Armyansko SSR Seriya Fiziko-Matematicheskikh Nauk, Vol 12, No 6, Nov/ Dec 59, pp 37- A boundary value problem of the Sturm-?Liouville type is investigated fora differential equation of the second. order having a retarded argument. A problem of this type, in a somewhat less general presentation, was considered in the work by S. B. Norkio.,, "Concerning a Boundary Value Problem of the Sturm-Liouville Type for a Differential Equation of the Second Order Having a Retarded. Argument," Izv. V,ysshikh Uch. Zav., matematika, No 6(7), 1958; however, only asymptotic fommlas for eige?n- functions were obtained by him. The problem concernI g expansion in terms of eigenfunctions remained. open. Mutually conjugate boundary value problems for an integrodifferential operator having a retarded argument are presented in section 1 and asymptote for the eigenfunctions and e3.genvalues is studied. In section 2 a Green function is constructed for the considered integrodifferential operator. 45 Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100630001-4 Approved For Release 1999/09/08 : CIA-RDP82-00141 R0001 00630001-4 In section 3 a biorthogonal system of eigen and .adjoint functions of mutually conjugate boundary value problems is constructed and. the asymptotic formulas are made more exact. For the limitations defined in section 1 theorems are proved concerning the expansion in terms of Frig; n and. adjoint functions, uniform convergence with ordinary Fourier series and convergence In. the mean. The author expresses appreciation for the advice given him by his teacher and M. M. Dzhrbashyan, Academician of the Academy of Sciences Armenian SSR. 69. Class of Systematic Codes Considered "Concerning; One Class of Systematic Codes," by V. I. Leven- shteyn, Mathematics Institute imer i V. A. Steklov, Academy of Sciences USSR; Moscow, Doklady Akademii Nauk SSSR V.-)l 131, No 5, Apr 60, pp 1011-101 A class of systematic codes is considered with detection and correc- tion of errors which are obtained during utilization of one of the algori- thms of code construction proposed by V. I. Siforov in his work e.ppearing in Radiotekhnika i Elektrorika Vol 1, No 2, p 131, 1956. The power of the codes of the considered class is within those limits which are known at the present time for the maximum power, of codes. Certain properties of these codes are investigated and methods to reduce overshooting during their practical construction are indicated. 70. Reduction of Order of Integrodifferential Equations "Reduction of the Order of Integrodifferential Equations With Ordinary Derivatives satisfying a Given Lie Group," by Yu. K. Uzakov, Tashkent Textile Institute; Tasnkent, Izvcstiya Akademii Nauk UzSSR, seri? Fiziko-Matematicheskikh Nauk, Vol 2, May 60, pp 10.20 The first problems concerning application of the theory of S. Lie groups to integrodifferential equations with constant limits were con- sidered in the work of 1. S. Arzhanykh, "Application of Lie groups to integrodifferential equations" Nauchnaya Sessiya AN UzSSR 9-114. 191+7, AN UzSSR, 191.7. In the works by the author, appearing in 17y. AN UzSSR ser. Fiz.-Mat, Nauk, No 3 and No 1+, 1958,9 integrodifferential equations of the first and second order were constructed satisfying a given Lie group. .. 11.6 Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100630001-4 Approved For Release 1999/09/08 : CIA-RDP82-00141 R0001 00630001-4 In the present work construction of integrodifferential equations with ordinary derivatives, satisfying a given Lie group was investigated further, and in particular, an equation of the following form was con- sidered: H(x,Y(x), y'(x), y"(x), . . . , y(n)(x) ) = b a K(x,Y(x), Y'(x), Y"(x), . . . y(k) (x), Y( 0, Y'(0, Y"( 0. . . ,y( Z)( ~) ) d~ , where a and b are constants, and the whole numbers n, k, Z are fixed. 71. Analysis Problems of Markoff Processes "Markoff Processes and the Problems of Anal.-?sis Associated with Them," by Ye. B. Dynkin; Moscow, Us ekhi Matematicheskikh Nauk, Vol 15, No 2(92), Mar/Apr 60, pp 3-2 The article was divided into the following sections: 1. Introduction 2. General problems of the theory of Markoff processes 3. Form of an infinitesimal operator, generalized diffusion processes 4. Harmonic, subharmonic, and superharmonic functions associated with a Markoff process 5. Additive functionals and associations with their transformation of Markoff processes 6. Stochastic integral equations 7. Boundary value problem theory of differential equations and asymptotic behavior of trajectories 8. Conclusion 47 Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100630001-4 Approved For Release 1999/09/08 : CIA-RDP82-00141 R0001 00630001-4 72. Solvability of Mixed Problems Discussed "Concerning the Solvability of Mixed Problems for Hyper- bolic and Parabolic Equations," by V. A. Il'in; Moscow, Us ekhi Matematicheskikh Nauk, Vol 15, No 2(92), Mar/ Apr 60, pp 97-15 ? CPYRGHTThe content of the above work is as follows: Chapter 1. Summary of the works concerning a mixed problem Part 1 Formal system of the Fourier method Part 2, Summary of the results contained in educational literature Part 3 Investigations pertaining to the wave equation Part 4 Generalized solution of a common hyperbolic equation Part 5 Further investigation of a hyperbolic equation Part 6 Concerning determination of a classical solution and its uniqueness Part 7 Solvability of a mixed problem for a hyperbolic equation in an arbitrary normal cylinder Part 8 Basic of the Fourier method for a parabolic equation in an arbitrary normal cylinder Chapter 2. Uniqueness of the classical solution in an arbitrary normal cylinder Part 9 Theory concerning the uniqueness of a weak classical solution Part 10 Existence of finite energy for almost all t Chapter 3., Convergence of a basic bilinear series Part 11 Resume of several results from the theory of an elliptic equation Part 12 Convergence of a basic bilinear series of eigenfunctions Part 13 Convergence of a bilinear series of first derivatives - 48 Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100630001-4 Part 14. Convergence of a bilinear series of second derivatives Chapter ll. Auxiliary assertions concerning the order of Fourier co- efficients Part 15 Two preliminary lemmas Part 16 Basic lemmas concerning the order of Fourier coefficients Chapter 5. Solvability of a mixed problem for a hyperbolic equation in an arbitrary normal cylinder Part 1.7 Proof of theorem 8 Part 18 Analysis of the conditions of theorem 8 Chapter 6. Basis of the Fourier method for a parabolic equation in an arbitrary normal cylinder Part 19 Proof of theorem 9 Bibliography 73? Distributions of Differences and Quotients of Order Statistics "On the Distribution Functions of the Differences and Quotients of Order Statistics," by H-J Rossberg, Berlin- Leipzig; Berlin, Mathematische Nachrichten, No 1/2, Jan/Feb 60, pp 37-79 Let xl, x2, ...,xn be independent probability values with the same distribution function P { xi .