SCIENTIFIC ABSTRACT BOHUSLAV, B. - BREZINA, V.

Document Type: 
Document Number (FOIA) /ESDN (CREST): 
CIA-RDP86-00513R000306920002-9
Release Decision: 
RIF
Original Classification: 
S
Document Page Count: 
100
Document Creation Date: 
November 2, 2016
Document Release Date: 
June 9, 2000
Sequence Number: 
2
Case Number: 
Publication Date: 
December 31, 1967
Content Type: 
SCIENCEAB
File: 
AttachmentSize
PDF icon CIA-RDP86-00513R000306920002-9.pdf2.05 MB
Body: 
-Q~~~na CZECH/37-59-2-17/20 AUTHORS; Jan Fousekq , TITLE: Letter to the Editors---The Irreversible Motions of a 900 Domain in BaT'03 , PERIODICAL: 'Ceskoslovensk~ Casopis Pro Fysiku, 1959, Nr 29 pp 217-218 ABSTRACT: The motion of a 900 domain of type c , in the shape of a triangular prism of a monodrystal of BaT103, was observed in an ac electric field (50 c/s) perpendicular to the c axis of the domain (Fig la). Up to amplitudes of 1.1 kV/cml the motion of the wall could not be measured, i.e. it was < 0.35 With increasing amplitudes of th electric fieldi";he domain began to move and its motibn increased until it reached 4.1 y at 6.49 WcmP ~,A similar result has been obtained by Little (Re-f-.;I~Un a 900 domain of a different type. The motion w~g studied in more detail with stroboscopic illumination. It was found that the dependence of the displacement of the domain on the momentary intensity of the electric field, followed the hysteresis curve. The Card 1/2 vibrational motions of the walls have. therefore, an irreversible character. At higher fields) saturation V11, CZECH/37-59-2-17/20 Letter to the Editor; The Irreversible Motions of a 900 Domain in BaT103 occurs when the motion of the wall stops before the field reaches its maximum amplitude (Fig lb). Some* factors to be considered in the interpretation of this phenomenon are listed. The motion of the domains was in phase with current. The above results show that the motion of the 900 domain walls contributed to the Card 2/2 typical hysteresis of the total polarisation of BaT'03 crystals. There are 1 figure and 1 English reference. ASSOCIATION: Fysikkni ustav 6SAV, Praha (Department of Physics~ Ac. Sc. Prague) SUBMITTED; November 4, 1958 tobtlon of IR 00. "On W T Ian 11 %iAl"V Bhdna rad. Scl., G99c4al" O J. rfiyf~T, h Me 0 ating mot ave so ftmers- lons of lhe 6wWtAts We Oaracter; "U &r rmdts hikNrc hmn obta ined p*v Wdy Merest -with 00' domains of: a %m by.-L 1 407b d kde (C.A h b . 49, nA e. e Teven e to" t 1 ). An attempt b ma b d m ti It M o oun ons. om wy ' of-a ty coabftte, to thr _Oound%ries of the WWI A.. tw., COUNTRY 'I-ios'-Lovalii a C) CATEGORY ABS. JOUR. RZXhlin., i~o. 23 195-9, ',;o. 81414 AUTHOR Brezina,, '13- 1113 T , 11"ot F71ven T NLE, A Study of the Reaction Between Equimolar Mixtures of Barium Carbonate and Different Varieties of Titanium Dioxides. ORIG. ?UB. : Collect. Czechosl. Chem. Communs, 1959, 24, h4j 1206-1233- ABSTRACT : See RZKhim, 192-8t #11, 35468. C-kRD: V CZECH/37-59-2-17/20 AUTHORS; Jan Fousek, Bohuslav Brezina ---Er TITLE: Letter to the Editors The -rMrsible Motions of a 900 Domain in BaT'03 PERIODICAL: Ceskoslovensk~ Casopis Pro Fysikul 1959, Nr 2, pp 217-218 ABSTRACT: The motion of a 900 domain of type c , in the shape of a triangular prism of a monoiJ~ystal of BaT103i was observed in an ac electric field 1:50 c1s) perpendicular to the a axis of the domain (Fig la). Up to amplitudes of 1.1 kV/cmj the motion of the wall could not be measured, i.e. it was < 0.35 V. With increasing ,amplitudes of th electric field,, the domain began to move and its motibn increased until it reached 4.1 F at 6.49 kV/cm. -L similar result has been obtained by Little (Refjl~-~in a 900 domain of a different type. The motion wa--s studied in more detail with stroboscopic illumination. It was found that the dependence of the displacement of the domain on the momentary intensity of the electric field, followed the hysteresis curve. The Card 1/2 vibrational motions of the walls have, therefore, an irreversible charaeter. At higher fields, s aturation CZECH/3M9-2-17/20 Letter to the EditorS The Irreversible Motions of a 900 Domain I in BaT'03 rs when the motion of the wall stops before the occu, field reaches its maximum amplitude (Fig 1b). Some' factors to be considered in the interpretation of this phenomenon are listed. The motion of the domains was in phase with current. The above results show that the - motion of the 90' domain walls contributed to the Card 2/2 typical hysteresis of the total polarisation of BaT'03 crystals. There are 1 figure and I English reference. ASSOCIATION: FysikAlni ustav ~SAV, Praha (Department of Physics$ Ac. Be. Prague) SUBMITTED: November 4, 1958 Z/037/6o/ooo/ol/oWo14 E075/9535 AUTHORS: Janovec, Vaclav,' B'rezina, Bohuslav; Arend,Hanus' T.-, 71 TITLE: The Physical Properties 7and "Prep~tion of Ferroelectric Triglycinsulphate PERIODICAL:-Ceskoslovensky' ~casopis pro fysiku, 1960, Nr 1, pp 63-80 + 92b and c (2 plates) ABSTRACT: In the introduction it is pointed out that many authors believe that triglycinsulphateland its isomorphous compounds, namely, triglycInselenateland triglycin- fluoroberylate, have great potential ies as ferroelectric materialsi A number of papers have been:published on the study of the physical properties and on questions of preparation of single crystals of these substances. In this paper the authors attempt to summarize this published information; they restrict themselves to setting out established facts since knowledge available so far does not allow unequivocal interpretaiion of the results. The subject matter is discussed under the Card 1/2 following paragraph headings: preparation of the compouzj" Z/037/60/000/01/008/014 E073/E535 The Physical Properties and Preparation of Ferroelectric Triglycinsulphate crystallographic properties; domain structures; dielectric properties (dielectric hysteresis and the process of repolarizatton; permittivity; piezo-electric properties); properties of triglycinsulphate in the region of transformation from the ferroelectric to the non-ferroelectric state; possibilities of application, the main one being for memory elements of computers. There are 15 figures, 2 tables and 34 references, 8 of which are Soviet, 2 Swiss, 2 French and 22 English. ASSOCIATION:'Fysikalni' u"stav C"SAV, Praha (Physics Institute, Czechoslovak Academy of Sciences, Prague) SUBMITTED: July 30, 1959 Card 2/2 23665 15-- 21, DO 0 0'3 Z/012/61/000/003/001/004 q, ~//Ln E024/E435 AUTHORS: B ezina B and Janovec, V. TITLE: Electrolytic colouring and degradation of monocrystals of BaTi03 PERIODICAL: Sillkdty,,1961, No.3, pp.189-202 TEXT: The ceramic t1tanates used as dielectrics in miniature condensers become degraded with prolonged application of d.c. electric fields, i.e. their resistivity.decreases. Various doping impurities have been used to reduce the tendency to degradation, but a full answer to the problem has not yet been found. The authors studied monocrystals because the problem there is simpler than in ceramics and*it is possible to study optical and electrical changes in the crystal simultaneously. The process of degradation takes thousands of hours at room tempevatuve but at h�ghev tempex-atures it is cons�der-ably accelerated. Published work dealtag with degradation of single crystals of barium titanate ark4 Vtanate ceramics is mentioned. The crystals were grown in the shape of small platelets with an area of several tenths mmS and a thickness of several Card 1/5 23665 Z/012/61/000/003/OOl/Oo4 Electrolytic colouring ... E024/E435 hundredths mm. Two small faces were provided with silver electrodes and the crystal was placed on the hot stage of a microscope. While fresh crystals show a slight yellow colour, the application of an electric field of the ord 'er of 10OV/cm at 2500C leads to yellow-brown colouring within a few minutes, starting at the positive electrode. In the absence of the field, the colour gradually fades throughout the crystal. If the electric field is reversed after coloration, the colour gradually disappears, starting from the new anode. If the field of the new polarity remains on the crystal for more than about 15 minutes, the brown colour starts reappearing at the new anode. The absorption spectra of the coloured crystals show a main peak round approx. 0.5 P. The conductivity was measured simultaneously and It was found that, together with the coloration, the conductivity of the ;zrystals increased. A steep increase of conductivity occurs during the non-homogeneous brown coloration of the crystal, while during the homogeneous coloration, i.e. the later stage of coloration, the conductivity increases less steeply. At high iniensities of the electric field (several kV/cm), the crystal breaks down after an initial gradual increase in conductivity. 23665 Z/012/61/000/003/001/004 Electrolytic colouring E024/E435 A sudden decrease in the Intensltj' or the electr1c Eleld lea;ds~ to bleaching of the crystal and a decrease in conductivity. The electrical conductivity of a coloured crysta-1 is non-ohmic. While the temperature-dependence of the conductivity of the colourless crystal obeys a logarithmic law, the temperature- dependence of the conductivity of a coloured crystal is somewhat Irregular. No photoconductivity has been observed. The coloratioxi slightly increases the permittivity and considerably increases the loss-factor 6. The authors considered'the crystals of barium titanate as ionic crystals containing Schottky defects. Several colour centres, analogous to F-centres in alkali halides, can be formed and the authors call them f-centres. Similarly, v-centres can be formed. A crystal containing f-centres has a surplus of cations while a crystal with v-centres contains a surplus of anions. f-centres can be produced:in barium t1tanate by heating the crystals at low oxygen pressures (Ref.15: Coufova', P., Arend, H., bude publikovano v Czech. J.Phys. 196l); presumably oxygen evaporates from the crystal and thus a surplus of cations is formed. Several mechanisms are discussed Card-3/5 23665 Z/012/61/ooo/oo3/001/004 Electrolytic colourIng E024/Z435 by the authors whereby colour centres can be formed by the passagb of current through the crystal. They consider that the silver electrodes behave as passive cathodes and active anodes. This means that metallic atoms are deposited on the cathodes but no f-centres are formed in the cathode region because equilibrium is restored by the migration of anion vacancies to the cathode. However, cation vacancies move towards the anode and simultaneously, electrons leave the crystal at the anode. Thus, ,sr-centres are formed in the anode region. These centres then move under the influence of the field and contribute to the electrical conductivity. The gradual fading of the colour after switching off the electric field can be explained by diffusion of the colour centres to the surfaces, where oxygen can escape. Acknowledgments are made to Candidatesof Mathematical and Physical Sciences J.Fousek and K.Peftek, industrial physicist P.Coufa and Doctor H.Arend. There are 12 figures and 17 references: 10 Soviet-bloc and 7 non-Soviet-bloc. The four references to English language publications read as follows: Mott, N.F., Gurney, R.W.: Oxford UnIve3ralty Press, 1957; Seitz, F.: Rev.Mod. Card 4/5 Electrolytic colouring Phys. 18, 384 (1946); Seitz, F.: Saburi, 0.: Journ. Phys.Soc.Jap.14,9 ASSOCIATION: Fysikiln~ u0stav CvSAV, (Institute of Physics SUBMITTED; December 29, 1960 23665 Z/012/61/000/003/001/004 E024/E435 Rev.Mod.Phys. 26, 7 (1954)-, (1959). Praha 6SAV, Prague) Card 5/5 Z/013/62/000/004/004/006 D006/D102 AUTHORS: Brezina Bohuslav, Engineer, Candidate of Sciences, and Fousek, Jan, ~_ralua`_e'L i~ysicJsi_, Candidate of Sciences TITLE: The domain structure of ferroelectric barium titanate and its influence on the dielectric properties of the latter PERIODICAL: Skla'r a keramik, no. 4, 1962, 141-144 TECT: Causes of the domain-structure formation in ferroelectric materials and the factors modifying the configuration of the domain structure are described in a simplified way. The main cause of domain-structure formation is the reduc- tion of the system?s free energy. It was found that the domain-structure forma- tion in ceramic ferroelectric materials is governed by the same laws As in single crystals. The influence of domain structure on the dielectric characteristics of the BaTi03 system, especially the mechanism of repolarization of ferroelectrics by the domaiii shift, are dealt with in detail, indicating the possibi3ities of producing ferroelectric materials with built-in properties.for application 3*M variable capacitors, electromechanical transducers, computer engineering, and Card 1/2 Z/013/62/000/004/004/006 The domain structure of DOO6/DlO2 automation. There are 12 figures. "inf us ASSOCIATION: Fyzika tav CSAV (Physical Institute, Czechoslovak AS), Prague Card 2/2 S/181/62/004/006/002/051 B108/B104 AUTHORS: Brezina, B., and Fousek, Ja. TITLE: Interaction between 90-degree and 180-degree domains in BaTiO 3 PERIODICAL: Fizika tverdogo tela, v- 4, no. 6, 1962, 1400-1411 TEXT: The principal types of interaction between 90-degred and 180-degree domains during their motion in crystal or ceramic BaTiO specimens are A%.41s cussed. These are: Effect of 90-degree walls on the 180-degree -processes of repolarizationt effect of 90-degree repdlarization on 180-degree repolarizition, affect of 180-degree walls on 90-degree repolarization, effect of 160-degree repolarization on 90-dogrOe repolUriZfl- tion. Though all these types occur simultaneously, such a subdivision is useful in handling experimental material. The effect of these Interactions on the measured values of the electrical characteristics of ferroelictries is examined. The authors' own experimental data are evaluated and classified as above. Moreover, some possible types of interaction which Card 1/2 VALCFA, Jiri; BREZINA,,.Bretislav Use of bohemian magnetites for preparation of ammonia synthesis catalysts. Part 1: Magnetite refining bi mEsnebio air olassification. Chem prum 12 no.c":486-489 S 162. 1. Vyzkumny ustav organickych syntez, Pardubice - Rybitvi. BREZINAI B.; FOTCENKOV, A.A. ......... . ............. .The influence of a surface layer on the 1800 switching of Ba'-"'03 single crystals. Chekhosl fiz zhurnj~4 no.1:21-25 164. .L. Institute of Physics, Czechoslovak AcademW Sciences, Praha 8, Lumumbova 8 (for Brezina). - 2. Institute of Physics, Academy of Sciences U.S.S.R., Krasnoyarsk (for Foteenkov). ACCESSION NR3 AP4035378 Z/0055/64/olh/001/0044/0047 AUTHOR: Bresinas B*j Janovecs V. -i TITLE: Interp"tation of electric field strength in barium titanate single crystals SOURCE: Chekhoslovatakiy fisichaskiy shurnalp Y. Us no. Is 1964., 444t7 TC1'IC TAGS: permittivitys dielectric constants electrostatic energyp electro- static fields dielectric, coercivityp ferroelectric material, barium titanate, barium titanate single crystals electric field strengths solid atati physics, crystallography ABSTRACT: Authors show that the electric field strength of unetched am! successively etched barium titanate crystals can be explained by the presence of a ferroelectric surface layer with reduced dielectric constant. In contrast to the Herz model (W. J& Herz, Journ. Applied 'Phya.2 27 (1956) 936) which con- sidered a homogeneous layers authors assume that the dielectric constant within the layer gradually decreases as it approaches the surfaces We Hertz (Jo=G Cwd 2/3 ACCESSION NR: APhO35378 Applied Phys. 27 (1956) 936) and C. F. Pulvari, (Journ. Am. Ceramic SoceV 42 (1959) 355) found that the electric field strength E on c-domin barium titanate crystals is higher in crystals with a smaller natural thicimeso d (not effected by etching) than for thicker crystals. This finding was approxi-, mated by the hyperbolic function E, E. + d The model for a crystal with a homogeneous surface layer cit with dielectric constant EL leads to the relationBhip EL - Es I + 2 (2) where d is the natural crystal thicknessl is the dielectric constant of the crystal interiorj and EB is soon critical value of the electric field within' the crystal at which switching occurs. Author used the experimental values of card 2/3 ACCESSION WR: APLO35376 Ec - 95o volts/cm for a crystal without a surface layer and 700 volts/cm for an unetched crystal. The value dL 10-3 cm was taken from 01o"ar and Janovec's work (Czech. J. Phya.0 B13 (1963) 261). These values were used to obtain the constant Y, characterizing the coercive force of unetched crystals. It was found that 'r - 196 Vj, which is in satisfactory agreewnt with 141=1 a and Glogar and Janovec's data. "The authors thank Ve Drorak 0. So., J. Foucek C. So. and Z. Malek C. So. for stimulating discussions*" Orige art. has: 9 equations. AS50CIATION% Institute of Physicsj, Czech* AcaderW of Sciences., Prague ENCLt 00 sum 06may63 DATE AOQ: 26May64 SUB COM EMI, 68 NO PJW SOVI 009 OTH t 000: Card 313 FOUSEK, Ya. (Fousek, J.]; BRZa~INA, B. [BrezA Frequency dependence of the motion of 900domain walls in barium titanat,6-9 Izv,"AN SSSR. Ser. fiz. 28 no. 4:717-721 Ap 164.1 (MIRA 17:5) 1. Fizioheskiy institut Chekhoslovatskoy Akademil nauk. a E ACCESSION NR: AP4035377 Z/0055/L4/014/00VO021/0025 AljT40R: Brezina, B.j Potcankov, A. A. TITLE: The influence of a surface layer upon the 180 degree switching of BaTiO, sub 3 single crystals SWRCE: Chekhoslovatskiy fizichesldy zhurnal., v. 14, no. 1, 1964, a-251 76a-b TOM TAGS: switching, clamping, d-c restoration, switching diode, crystallo- graphy, BaTiO sub 3 crystal, anti-parallel domain, solid state physics, BaTiO sub 3-KF system, LiCl electrode ABSTRACT: The effect of a BaT103 single crystal surface layer on 1800 switch- ing was found. BaT'03 Single crystals without admixturas, which itere grown from a BaTiO3-1'%F system) were used. cryutala- with a perfect surface and without internal stress were c-domained by a d-c electric field for a maximum of 1 sec. 'als were examined by the microscopic method described by R. C. ;-,'illers The crysu and A. Savage (Journal of Applied Physics, 31 (1960), 662). A continually in- creasing voltage of a constant rate of 10 volts/min was applied to liquid LiCl electrodes in the direction of the crystal's c-axis. After the application Card V3 AGGI=ON Iffit AP4035377 I i of the electric field, the nucleating and moving anti-parallel domain walls. are visible when crossed Nicol prisms are used. The surface layer was successively, etched from ne or both sides simultaneously in concentrated. H3PO4 at UO-150 C* The surface layer on BaTiO3 crystals causes the formation of a large number of anti-parallqi domains during switching by a d-c electri c field. These domains extend sidiways only insignificantly. Conversely~ the ~'j switching in crystals without a surface layer is characterized by the formation of a small number of anti-parallel dom.-ins in which the sideways motion of the wall predominate. A long-term polarization (about 10 hours) with a d-c field of 10 to 1.5 kilovolts/cm has an effect which is similar to etching a surface layer on both sides. The mwdmm displacement rate of the 1800 wall in etched crystals was in the direction of the crystallographic a axis. The mininum was in the direction forming a 450 angle with the a axis. Hencep primarily square domaini with inwardly bending sides are produced from the original point: omains Authors conclude that they canwt at present make any further con elusive statemienta concerning the fact that the number of the nuclei of anti Parallel domallm am be influenced by prolonged polarization of B&TLO3 single ;::2 Owd V3 7 7 F. 7- 1 L 1, ACCESSION WRs APhO35377 crystals by a d-c field. The relatively long periods of d-c field application which are necessary for the change described indicate the presence of ion exchange processes in the electric field which obviously effect the surface layer* "The authors thank Jo Fouask Go So* and K, Patek Go Sao for valuable -discussions and H. To Arend Co So. and Jo Jary for preparing the crystalso" A q: *Orig. art. has: no graphics. ~~ASSOGITATIONi Institute of Physicap Czech. Academy of Sciences,. Prague; Institute of Physicap AcadoW of Sciences# SSSR, Krasnoyarsk, -63 SIMMETTED1. Mpx DATE ACQ, 2&mkv64 ENCL: 00 I SUB COM: SS IM NO rMF SOV t 000 OTMI '021 Card 313 ACC NRt AP6019268 SOURCE CODE: GE/0030/66/015/002/0451/0456 V B zina, B.; Safrankova, H.; Kvapil, J. AUTHOR: ORG: VInstitute of Physics, Czechoslovak Academy of Sciences, Prague;vResearch Insti- Itute of Single Crystals, Turnov TITLE: Ferroelectric properties of solid solutions of triglycine sulfate and fluo.- beryllate crystals :SOURCE. Physica status solidi, v. 15, no. 2, 1966, 451-456 TOPIC TAGS: ferroelectric property, ferroelectric crystal, Curie point 'ABSTRACT: Solid solutions of ferroelectric TGS and TGrBe sin*gle crystals'were pre- !pared by the dynamic cooling of aqueous solutions. Various physical properties of Ithe solid solutions were measured for different relative concentrations o", t :crystals. It was found that the phase transition temperature is not a linear function iof the concentration while the variations of the pemitivity of solutions of all centrations wiih temperature obey the Curie-Weiss law. -It was also fo con- und that the co- ;ercive field of TGS-TGFBe solid solutions increases with increasing TGFBe content. iThe authors thank Mr. J. Novdk for an appraisal of the analytical methods and Mr. X. Bernatzik for help in growing the single crystals. The authors also thank Dr. J. 'Fousek and Dr. Z. Hauptman for suggestions which helped to improve the manuscript, ACC NR.- AP6019268 land Dr. V. Janovec and Dr. V. Dvori3c for valuable discussions. Orig. art. has: 7 fig:~ms, 3 formulas. SUB CODE: 20/ SUBM DATE: 26Nov65/ SOV REF: 002/ OTH REF: Oll 2/2 I :'L7,EZINA J, I From the activity of the Shell Molding Group. Slevarenstyl 11 no.10:426 0 163. ~L 11;-I I BREZINA J Activities of the Group for Sholl Molding. Slavarenstvi 12 no.5:200 Yq 164. CHURY, Jirii BrMINA, Jaroslav; LUESIK, Ari Effect of muscular activity and of biogenic stimulators on semen. Cook. biol. 4 no.3:158-161 Mnr 55. 1. Biologicky uBtav veterinarni fakulty Vysoks skoly zemedelake, Brno. (SOW, physiolo&v, eff. of bi*enic stimulators, off. on semen in rabbits) (TISSUE THIMAPY, biogenic stimulators, eff. on semen in rabbits) (MMOISR, eff acts, on semen in rabbits) BREZINA, J. An automatic machine for the production of shell molds. p. 232- (SLEVARENSTVI, Vol. 5, No. 3. Aug 1957, Praha, Czechoslovakia) SO: Fonthly List of East European Accessions (EEAL) LC, Vol. 6, No. 12, Dee 1957. Uncl. E-1EIIIINA, J. ; MAY, T. I-- - ---- Rhyolite tuffs in the upper Helvetian ond Sam.-tlan of the Im.'er rformrim r~tgicn. P. 17-1 (FIRACLI Vol. 3"', no. 3, 1957, ?rabp, C~nchoslovnkia.) SO: Monthly List of Evst Europt~an Accessions LC, Vol. 6, no. 12, Ltccmb-~z 1957. Incl. BREZINA, J. "A quick method of modal analysis." VESTNIKj ustredni ustav geologicky, Prague, Czechoslovakia, Vol. 38, No. 3, 1958 Monthly List of East European Accessions (EEAI), LC, Vol. 8, No. 8, August 1959. Uncl. BREZINA, Jaroslavi, ins. Tightening gun for prestressed concrete. Tech praca 14 no.6: 457-458 A 162. 1. Urad pro patenty a vynalezy, Praha. ZEE C,10SLOVICK I A BREZINA, - J. Central Institute of Geology (Ustredni ustav geologicky), Prague Prague, Vestnik Ustrodnitro ustavu geologickeho, No 6, 1963t pp 409-4 2 "Classification and Measures of Grain Size Distribution." 81MZ114A# a. Adtivity of tht Group for Ihell Holding, Slavaranatvi 13 no.b P Ja 165. -AIMI.L." Z'OUILK. 11"*p Inzo ~11 ~, Vol-taga and eiectrom-Alvo faice; discussion. El tech obzOr 53 no.8: "2-446 Ag 16 4 & BREZINA, M. Evolution of thermoelectric refrigerators in the USSR. P. 16, (Sbirka Vynaezu.) Vol. 6, no. 1, Jan. 1957, Praha, Czechoslovakia SO: Montbly 1ndex of East Europeon Acessions (EFAI) Vol. 6, No. 11 November 10057 1-3/ slav Miro. Reactloii of, wbonyl compoundi -with AmInes. V. t& c.study, ofthe reaction of,cyclananes, with pri equillbritun states. Mirosla.0-Weldna. and tunlin L(W6. akad. T r ra e --Y X_ 4 7 T C i C hemical Abstracts. - :-, --91(1953); d ' 5 4 on - cat ,,9 .. NRH*~obtainid by.the reaction of cyclopentanorne (1), Y 2 5, 1954 9W Cyclobexanoue (M, and metbylcyclobLunone OM with! ' - , Ele tr6chemistry NHI (M CHjCO H , MeNH*, M, . EtNIft, HOCHtCHsNHi, NH2' I - - d M ibl CH(NH d (VI) )MH c j under ppl , e was re uc e . an 2 ai~grapbk conditions. . The equil. consts. of the vezhI6~, and the dissocn. coasti. of the final ketintines were 4o 4etd. The stAbhlty:.i ji~ i~i&ensat. de~.66d dh the powty,6f-the Starting :CWgroup as WA 4 0111-thol p4arltylof :C:W-*gMp. For analytical pur the reaction with, AWNH3 was most suitable -and - S~ thidetn,ot:cyclanone3inconaLs.-Uptolo-4. aM half-wave"potentials of cyclanoultri ' i w ll i di b l c d n d f~d ( ere p car ssow. coo .. - .; atn ne, w ony orap -I W-Wave potential in V-): 1, rv, 8.95, - 1.50; 1, V~' its mml.60;: 1. VI, R72- -1.53, IL IV, 9.15, --:1.63; ~ A; V,' ` -j s -I XA - 9 43.- -1-58; 11, M. 9.48. -1-48; M IV, 9 , n iT .- -1.52; MJI.9.64, i.50 M.H M V. 9.47, dUc Y, .-Palgroemphl, r D re 6 Zuman Chemical Abstracts prog erone, d Onc4rtlcc~terone. Pe IH Ten d M V~ May 25p 1954, 153-e I .- eductiN I Electroohemistry wav A"- , t Mo In aq.-adc. buff solus" were *ne ce u studied& -7he of two forms lut ble with:: pff - Ads wm ascertained by, polarozraphy~, orption waves: were fo6nd In the alk. range of pH, and with At-choleste-, none-3 and deozycorticosterone, also In acidic rnedium.,_ With 2. lo%%;er conens. of MOH In the solas., catalytic waves werd observed in acidle inedlum. The most mittable, conditions -for the analytical deta. of the toW contents.0t. ateraids; and for the dew. of mixts. of somt smolds, were dtsMW, The dem of the sum of ketoattrulds vrm best! tarri-doutinOANUOHMPH". Deoxytortleostooke could be detil. In the premm of ttstasterotic at PH.O.O. III the premce of methyltestostemne at pH 0.;, and progester- 'one in the presence of methyltestosterone at P71 9.2; T" j 7 Zt. BRMINA, M. Determination of oxygen. In German. p. 407. (Acts, ChJmica. vol.. 9. No. 1/4, 1956, Budapest, Hungary) SO: Montbly List of Epst Evurox)ean Accessions (EEAL) LC, Vol. 6, No. 8, Aug 1057. Uncl. elccrrouie reactions -Jr, -Pul-iro,,-raphy. VI. CaLal-..!5is of thc 'err reduc~-2'.01-1V OIL iron iont,; in ~in In 1, !:1, F. 339. Collection of' Czechoslov.~~ ChcT.Aca-l Gornvnie-atioi.3. 3*-,crrdk C,--,c::I,.oLlovats'IdIh cbes?d'-h Rabot. (,:~raha, Czechosiova%a.) Vol. 22, nu. 2, A~-,r. 195" A, ~ 1, L- I . SO: -onthly Index of East Edropean A,,es5ion (EEA'I) LC, Vol. 7, No. 5, RaY 1958 BRIZINA$ M. 4 Catalysis of polarographic reduction of oystin by some metallic Ions. In German. Goll.Cs.Chem. 24 no-11:3509-3522 N 1$9. (MMI 90) 1. Polarogarphi echo a Institut, Techoohoslowakische Akademie der Wisseuschaften, Prog. (Catalysis) (Polarograph and polarography) (C~7stine) (Ions) (Zinc) (Manganese) (Nickel) (Iron) (Cobalt ) BRUIM, Mir.; KRGIIAC, Ant* Effect of external factors on the oxygen saturation of vanous blood measured by a polarographic method. Cas. lek. cesk. 98 no.9.-276-279 27 Yeb 59. 1. Polarograficky ustav Gsav, prednosta akkdemik J. Heyrovsky. IT, interni klinika JUJ. prednosta prof. dr. Boh. Prusik. X. B., Praha XIX, Ila evicisti 2. WXYGIN, in blood saturation Of Teuous blood. eff. of external factors, polarog hy (Cz)) ::a 12, D~car;har 60, p 375 C:)"-IZtrj, ?Ayslc3, And Vatz:lnzrX 7zcO-tjr of V-SZ in Brno) inzUtuts of t-ha Cz4r-%0alOV41- Ac-2d=rvf Cc,-L-4.h-ar a' %itrof4r&z*-%* -n 7oul :Uxt-irts far Chicl-mis,' Source. "ira-lav of *,,Iical Ch,i-.%%7, Pky~tz, znd VQt..-L=-7 Fzc-!Lty f V~~z in ?olara,,raph-le Inatitu%,. of the Ctachoul*vak Ln P.--Z:40. Cc-:,ithor a! t.~olarajm,,414C l)Qtcn4'nati*n of Nitrofirstow) Yzad Uxlumz for ChicksaW So4rc~. -;jrajaz Doe-,atj Dactor At llatarl=7 Wicl a of ;:ad-'c3l Che~ls' .-I, PiVII04, And .oN'coloz:y, Vvtorinzry Pocalty at VU in Bmoj ftlara.,mpt-le xr..tit~t. of the C=ac;%ojlovzk Acaduzy of Scitneas in ?rgaa. nar of "Pallaroraph.4 -a" In 4 DaWmLnotioa of Nitrofuraz Fued 'Kix'am for CW.Oens,- Sourca. BREZINA, M. OIntroduotion to practical polarographyl by J. Heyrovsky and P. Zunan. Reviewed by M. Bresina. Coll Cs Chem 26 no.72 JI 161. (Heyrovsky., J.) (Uman.. P.) (Polarograph and Polarograpbr) SAFRAWKOVA, B.; BREZINA, M. Peptide-like compounds in the urine of patients suffering from bums. Acts. chir. plast. 4 no.1:18-25 162. 1. Laboratory for Plastic Surgery (Director: Academician F. Burian) and Folarographic Institute (Director: Academician J. Heyrovsky), Czachoslovak'Academy of Science, Pngue (Czechoslovakia) (BURNS urine) (PEPTIDES urine) MWINA I M, *Concise textbook of biochemistry for physicians and natwalists" by P,, larlsons Reviewed by 14, Brazina. Coll Cm Chem 27 no.8:2022-2023 Ag 162. CMMIAR, V.,- BFLEZIRA, If.; YMOUS, V. no academic deL-rees indicated CSM institute for Ifedical Chemistary, Charles University, Hradec Kr-al ovo; Polarographic Institute, Czechoslovak Academy off Sciences, Prague, and Institute for Physical Chemistry, Charles Universi%-, Prague Uor a2l) Prague, Collection of Czechoslovak Chemical Communications, No 1, 1963 pp 197-209 "Radiopol!~roeraphy of an Experimental Cobalt (II) Solution in the Presence of Cystin or Proteins" C3) AIZXAIMROV, B.; BREZINA,_11.; KALOUS V. no academic degrees indicated C= .Institute for Physical Chemistry, Charles Univcrsity, and Polarogm-phic Institute, C-echoslovak Academy of Science, Prague (for an) Prague, Collection of Czechoslovak Chemical Communicat-iOnS "z0 1, 19, 03 pp 210-220 "Folaxographio Catalytic Grade of Serum Albumen in Cobalt (I!)- and Cobalt(III) Solutions" BREZINA, M.; GULTJAJ, V. I m - I Effect of the groups SH, NH2 and COOH on the formation of polarographic -catalytic Brdicka wavei in ammoniacAl cobalt- and nickel solutions. Coll Cz Chem 28 no.1:181-196,Ja,163.- l..Polarographischas Institut, Toobachoslowakische Akademie der Y.issenschaften, Frag. CMMURI V.; BREZINAt M..; KAPUS, V. Radiopolarographv of the cobalt (II) test solution in the presence bf cystine or labumins. Coll Cz Ghem 28 no.1:197-PO9*~a 163. 1. Institutj fur pipdizinische Chemie, Karlsuaiversitat., Hradec Kralove, I~dlarographiaches Institut, Tschechoslowakische --A~mdemie der-Wis'senschaften, Frag, und Institut.fur phlsikql:Lschb Chemie, Karlauniversitat., Prag. A,T,EXA. ROV, B.; BREZINk M MOUS, V. ::===I-= .. .. Polarographic catalytic waves of serm.albumins in eo]Alt (II) and cobalt (III) solutions. Coll Cz'*Chem 28 nb.l-.210-220 Ja 16'~. 1. Institut'fur phyoikalinche Chemie, 4arlAuniversitat und Polbxographisahes Institut, Tacho6hos.W*akische Akademie der W.issenschaften,,Prag. BREZINk M - m III IMM 4fodern c.hemieal methods in a clinic" by M. Buchner and others. Reviewed by M. Brezina. Ghem listy 57 no.3:285 Yx 063. BIMZIN& M *Short textbook of biochemistry for physiciarw and natural scientistjou W Pe, larlsons. Reviewed by Me Brazim, Ghem. liety 57 no.4:412 Ap 163. J/ BMZTNA,,,M.,-, KRCILEK, Aq JELINEOVA;M. Polarographic determination of proteins in the urine. Cas.lek. cask. 103 no.58129--~,31 31 Ja'64 1. Polarograficky ustav MAT v Praze (reditels. akadem:lk J.'Heyrovsky); IV. I terni klinika fakulty vseobacneho le- karstv! KU v Praze (prednostat prof.dr. M.Fucik.),-Ustredni bioohemicke laboratore fakulty vaeobecneho lekarstvi KU v Prazz (vedou4--:L*. MUDr. J.Hrabane. CZECHDSLOYAKU BHEZIUp M.; KUTUVA# M. 1. J. Heyrovmby Polwojp*phic Institutep Csechoslovak AcadwW of Sciences (Polarographisches InstItut J. ElayravdW# Tachechoslovaldsche Akademis der Wisssnschaft*n) (for Bresinal); 2, Institute for Flov Research (InsMUt fUr Rhouimsforachung)p Prague (for Kutova,?) Fraguep Collection of Czechoslovak Chemical Communications, No 12, Dso 1965, pp 430T-4315 OF.ff*et of slectrolyt* flow on the polarographic XUWFAp M.1 IRMIXI, Mi. letn-AffUte for RM lbsW^h (164M4 f* (for &stow&?); 2.J6 Rwvvft lowtituto for Polwopeft ImutFA J. HIPWdW)t Coseboalwak AeatWW of SoleMn (for ft*BUS?) ft*VWV collgmti2s or Csftbwdovak Cbe"04 p So 2, lob 19", pp 741-M "Ist* of vo servo ftpmW~ of Me d"p obotwoft *w&;Smt, m4 Vw coum of Vw SWOM1.0 Czechoslovakia /*themical Techhology. Chemical Products 1-14 and Their Application Water treatment. Sewage water. Abs Jour: Referat Zhur - Khimiya, No 9, 1957, 31702 Author : Vlcek Radoslav, Sistek Frantisek, Brezina Otakar Title : Field Laboratory for the Testing of Water Orig Pub: Vojenske zdravortn. listy, 1956, 25, No 11, 515-517 Abstract: No abstract. Card 1/1 BREZINA, 0. ~ Changea in the level of protein fractions in vaccjn:jlv-t,~d and tuberculosis-infeated guinea pigs. Bratisl. Lek. Listv 44 no.8t499-506 t641+, 1. Ustav tuberkulozy v firatiulave (rinditel Mr. J. Markovi4c). BRE~Ws,-4 Natural habitat of the nine (Pinus mugo, subspecies subspecies uncinata, variatio fotundata, f. pyra- midata Hartig.) on the moors of the Trebon area. T). 44. OCHRANA PRIRODY. (MINISTERSTV0 KULTURY, Statni pece o ochranu prirody) Praha. VOL. 11. no. 2. Mar. 1956. SOURCES: EEAL LC Vol. 5, No. 10, Oct. 1956 BREZINA., Premysl, inz. Forest plant communities of the Trebon Moors and the losses caused by peat extraction. Lee cas 10 no. 4;401-420 Ap 164. 1. Institute of Forest Economic Development, Worksite Trebon. BREZ URVOLGYI, ii Study of the antigenic structure of Coxiella burneti. I. Fortraction of phase I antigenic component by means of trichloraostic acid. Acta virol. (Praha)[Fhg16 no.1:84..S8 Ta 162. 1. Institute of,Virology, Czechoslovak Academy of Sciences, Bratislava. CCXIELTA imunol) (ANTIGENS) ICHLOROACETIC ACID) M BILMNA, R.; SCHRAMEXI, S.; UINOILYI, J. Study of the antigenic structure of Coxiella burneti. II. Purification of phase I antigenic component obtained by means of trichloroacetic acid. Acts: virol. 6 no-3:27&279 162. 1. Institute of Virology..Czachoslovak Academy of Sciences, Bratislava. (coxiau immlool) (ANTIGENS) (THICIMORACETIC ACID) BARDOS, V.; BRIZINA,-P..; HYMPAN, J.; V8TT, I.; KWOCHVIL, J.; LIMMOVA, H. MICICKA. 0.; KIIA)SOVICOVA. A.; ROSICKY, B.; SOMODSKA, V. A complex survey of Infection foci in Bastern Slovakia in 1953. 3ratial. lek. listy 34 no.10-11M66-1195 Oct-Nov 54, 1. Zct Zoologickeho ustavu Vysokej skoly polnohosp. v Brne, preclnosta prof. dr. J.Kratochwil, z Virologickago ustavu. GSAV v Bratislava, -iaditell akadamIk D.Blaskovic. z kologicksho ustavu CSAV v Praha, riadital akademik I.Malsk. z Oblastneho ustavu apidemiologia a m1krobiologie v Bratislava. riaditel dr. J.1taroloak, z Neurologickej kliniky PIRSU v Kosiciach, prednosta, doo. dr, J,ITYWan, z KIIESu v Kosiciach. riadital dr. J.Kratochvil, z Hygianickeho ustavu. LTSU v Bratislava, prednosta akademle V*Kuoha (INCIPHALITIS, XPUMMI0, epidemiology In Czech.,, foci survey, in I.Slovakia) (IMTOBPMOSIS, epidemiology in Czech., foci survey in I.Slovakia) BARDOS, V.; BALAT, Y.: BRIZIN".; 1WTT. Z.; KRAIrKOVA, D.; LIBIKOVA, H.; KAGICKA, 0. ; MiNMUT-A.Z. -, -NOS1K, J. ROS ICKT, B. ; 3 MKOVA, A.; SOMMM, V.; ZACM, D. Survey of the natural foci of infections in one district of Slovakia. Bratiol. lak. listy 34 no.10-11:1195-1237 Oct-Nov 54. lo Z Vlrologicke4o ustavu WAY, r1aditel akademik D.Blaskovic. Z Ustavu spidemiologic a mikrobiologie v Bratislava, riaditel dLr. J.Karoleek. Z Neurologiakeho oddeloni nemocnice v N., primar ds. D.Zschar. Z Infekeneho oddelefila nemocnice r K.. primar dr. I.Manicova. Z Biologickeho ustavu WAY v Praha, riaditel akademik I.Malek. Z Laboratoria pro stavoves CSAV v Bme, vedual prof, J.Irratochvil. Z Bygienickeho ustaru LSFU v Bratislava, prednoBta akademik V.Mucha. (UCIPHALITIS, 74PUMMIC, epidemiology In Czech. natural foci in Slovakia) (IM"TOSPIROSIS, epidemiology In Czech., natural foci in Slovakia) (RICK3':3IAL DISEASES, epidemiology in Czech., natural foci in Slovakia) 'R A, -- UnA alf Dr. ZOLAROVA. Trida. Ar. ; DROPPA. Jan, Dr. -.'A A case of herpangina with positive virus isolation. Ces. lek. cesk. 93 no.51-52tI407-1411 24 Mee 54. lo Z kliniky otolarMologieksj SU v Bratislave, prednosta doe, Dr 'Jan Lajda (for kolarova, Droppa) 2., Z virologickeho Ustavu. AV v Bratislave, prednosts, skademik prof. Dr. Dyomyz Blazkovic (for Bre21Ua) (MIRPANGM, virus isolation of Cossackle virus) (GOISACKIN VIMSIS, infections herpangins, isolation) BRIZINA, R. .Our experience from the vork vith Coxsackie virus (viruses of group 0). Brattel. lako listY 34 no.10-11:1270-1274 Oct-Nov 55. 1. Z Virologickeho ustavu CSAV v Bratislave, riaditel akademic D.Blaskovio (COXSACKIZ VIRUSES Isolation in Czech.) _iw" - EXCaUyrA MODICA Sec.4 Vol.10/4 Microbiology Apr 57 850. BREZINA R. and TABORSKA D. Virol, Ostav tSAV, Bratislava. *Vjskum Q horucky na slovensku. 11. zdelenie: Sporadickt prfpady choroby a d'al�1 v9skum rezervolrovkch zvierat. Research of Q-f ever in Slova- kia. H. Sporadic gases and further investigation of re- servoir animals CSL.EPIDEM.WUKROBIOL.IMUNOL. 1956, 5j'3(152- 155) Tables 2 A description of 41 sporadic cases of Q-fever which occurred in the period May 1954-October 1955 in Slovakia is given. Professional character of the disease was observed with these patients. Some epidemiologic and clinical ob- ervations.are mentioned (2 cases with exanthema). Animals which could pos- ibly be a reservoir of the Infection have been serologically examined - the : results of serologic reactions are given. Apart from the animals found to be reservoir species in 1954 (deer, doe, mus domestica and ahrew-mouse), spe- cific compiement-fixing antibodies have been found in the sera of 14 brown rate, 3 foxes and 2 hares. The importance of these findings is discussed. EXCERPTA YEDICA Sec 4 Vol. 10/9 Microbiology Sept 57 2147. BREZINA R. Virol. Cst. CSAV, Bratislava. *Prfspevokk9t1adiurozpusthn0ho Antigenu C. burneti. Zdelenie 1: Rozpustnj antigPn v strologickych reakcilch avimuniteprotiQhorfitke. Study of the soluble antigen of C. burneti. 1. The soluble antigen in serological reactions and immunity against Q fever CSL.EPlDEM.NUKROB1OL.IMUN. 1956, 5/5 (239-245) Graphs I Tables 5 The soluble antigen gained by ether extraction of infected yolk-sacs was concentrat- ed by low-grade evaporation, 4076 ammonium sulphate and 251'* alcohol. In the latter the most satisfactory results in the complement-fixation reaction were achieved in a 20-fold concentration. The immunogenic effect tested in guinea-pigs and evaluat- ed according to the number of febrile days after the administration of living coxiellas in comparison to controls directly depends on the amount of the administered antigen. Soluble antigens of different strains were the same in their Immunogenic effect. Complement -fixation and agglutination antibodies were demonstrated as the result of immunization with soluble antigens. The allergic reactions with the soluble antigens in skin tests are weaker in comparison with the corpuscular antigen but without dif- ference in its dynamics. The presence of soluble antigen in the blood of guinea-pigs during the febrile state could not be proved. Strauss - Prage (IV, 17) BREMILk R. - TABORSKA, D. Antigenic properties of C. burnetti isolated in Slovakia. Cask. spidem. micro'b. imun. 6 no.l:)4-4Z Jan 57. 1. Virologicky ustay CSAV v Dratislave, riaditel akademik D. Blaskovic. Mr. R. Brezina, Virologicky ustay CSAV, Bratislava, Mlynska dolina. (COXIELLA BURNMI. immunology, antigenic propertiee of straits isolated in Czecb. (00) CZWHOSLOVAKIA/Virolo,V Rickettsias. E-5 Abs Jour : Ref Zhur Biol., No 15, 67o14 Author : Brezina, R., Kordova, If. Inst Title : The Action of Auromycin. and Terranycin upon Experimental Mice Infection. Orig Pub : Vaterin. casop., 1957, 61 110 3, 184-191 Abstract : VAce were infected with the strain L-35 0. burneti which caused chronic infection. The administration of aurony- cin and terrazycin at the start of the infection period lowered the curve of fornation of complement fixatioh of antibodlics. In the reinfection of mice, which had cr liar! not received auromycin, no differences in sensitivity were found. Card 1/,1 BRIZINUAw e_000~ . k*"_~ 1, Contribution to the stucty of phase variation in Coxiella burneti. Acta virol. Engl. Ed. Praha 2 no.2:91-102 Apr-June 58, 1. Institute of Virology, Czechoslovak Academy of Sciences, Bratislava. (COXINLIA BtRNNII. imminology phase variation phenomenon) 13REZ MA . R. . f!.3 ~~)( t A change in the virulence of the Henzerling strain of T511M burneti I .during passage in white mice. Acts, virol. Sngl. Ed., Praha 2 no.4:220 227 Oct-Dec 58. 1. Institute of Virology, Czechoslovak Academy of Sciences, Bratislava. (COXISLIA BMIIMTTI, inf act. changes invirulence of Henzerling strain for guinea pigs after passage in white mice) ROSICKY, B.; C1 BFMPIA), J&AP S.; 6US~N. NARACIK K.; CAP Rickettsioses and infections caused by viriises of the psi#acosis- ornithosis-mannaUan pneumonia group, in Albania, J. hyg, ~pidem., Pmha 5 no.105-88 .161. L Institute of Virologyp Czechoslovak AoadwW of Soiences, Bratislava. Institute of Biol Czechoslovak Academy of Sciences, Praba, Ministry 0971 of Health of Albania.. (MIYAGAVANE= infect) BREZINA, R.; URVOLOYI, J. T- Phase variation phenomenon of Coxiella burneti in the agglutination reaction. Acta.virol.Engi.Ed.Fraha 5.no.3:160-166 My 161. 1. Institute of Virology,, Ozechoslovak-Acadenq of Sciences, Bratislava. (COXIELLA immmol) MMINA R - URVOLGYI, J. Extraction of Coxiella burmeti phase I antigen by means of trichloro- acetic acid, Acta,viro:L.9ngl.Ed.Ptaba- 5-no.3&--193 MY '61- 1. Institute of- Virol.ogy, Czeohoslavak. AcadeW, of Sciences, Bratislava. (COXIELLA immunol) (TRICHWROACETIC ACID) BMINA, R.; ROAM, Z, A study of-'the -pb0b..Yariation..pbsnomm. bar -axperinntal-infeatian- Qf the tick Derwoe-htor xMinatue sulzer vith Coxiellm burneti. 'Orota virol,DAgLEd.P~raba-5.nol+s250-254..JI-161. 1. Institute of-Virolaap. -Csochoslovak4oadow-of Sciences,. Bratislava, (CMIMIA infection) (TICKS) P~EZINA, R.; URVMGYI, T. Serological relationships between some viruses of the Bedsonia group and Rickettsiae. Acta virol.L'ngl.Ed.Praba..5-no.4:2-55-,257 JI-161. 1. Institute of Virology, Czechoslovak.Academy-of Sciences, Bratislava. (VIRUSES) (KEYAGAWANELLA) (RICKETTSIA) BREZINA' R..L KORDOVA, 14.; Lim, F. The effect of 6-azauracil riboside on the multiplication of Coxiella burneti, Rickettsia provazeki and R. mooseri. Acta virol. 6 n0-3: 266-270 962. 1, Institute of Virology, Czec~oslovak Acadeiky of Sciences, Bratislava. (NUCU OSIMS VID NUCLEOTIDES pharmacol) (COXIELLA pharmar-ol) (IIJCETTSIA COD (iiICUTTSIA PROWAZEKII pharm;acol5h~ BORECKY, L.;.w-Z-IA44-R- PrAlem of the pathogenesis and resistance ~n case of virus and rickettpia infection on the cell level. Vestaik CSAV 70 no.1:70 161. 1, Virologickyustavy Ceskoslovenska akademia.ved, Bratislava. BWTPI H~; REHACEKI J.; KDPWOVAI N. Virklence of Co3della, burneti. Acta virol. 7 noji260-20 My 163. 1. Institute of Virology,, Czechoslovak Academy of Sci;nces, Bratislava. , (HMTM) (COXIELLA) (Q FEVER) BREZINA, R.; KAZAR, J, Phagoeytosia of Coxiella. burneti and the phase variation phenomenon, Acts, virola (Ptaha)[Engl 7 no-5:476 S 163. 1. Institute of Virology, Czechoslovak Academy of Sciences, Bratislava. (COXIEILA) (PHAGOCYTOSIS) (DOWE SERUM) T BREZINA.-HAi KORDOVA, H.; ROSMERG, M. MItiplication of Cmde3la burneti in the Ught, of reoent advances. Bratiolo lek. lixty 0 no*2:96-101 163, L Virologiclq ustav CSAV T Bratielavap riaditell akademik D. Blaskovic. CCMIELLA) (CELL DIVISION) SSUE CULTURE) (VIRUS CULTIVATION) M Kai~ CIF K yJ . ; Wr t F.'7. I N nF Propagation of Coxi~ I tellj burneti In tick tissue cultures. Acta virol. (Fraha) [Eng.1, 8 no.4080 J1 164. 1. Institute of Virology, Czechoslovak AcadeDW of Sciences, Bratislava. ni- IL. V-. BREZINApR.; SCHRAMEXtS.,- URVOLGYI, J. Study of the antigenic structure of Coxiella buimeti. III. Pyrogenic effect of phase I antigen in experimental guinea pigs. Acta virol. (Praha) [Eng.] 9 nob2tlBO-185 M- 165. 1. Institute of Virology, Czechoslovak Academy of Sciences, Bratislava. BREZINA, R.; KAZAR, J. W-64--m- ~~ ---*.j~a;j-' Study of the antigenic structure of Coxiella burnetl. IV. Phagocytosis and opsonization in relation to the phases of C. burneti. Acta virol. (Praha) (Eng] 9 no.3:268-274 Myt65. 1. Institute of Virology, Czechoslovak Academy of Sciences, Bratislava. BREZINA, V. I'Morophologic composition of catalysts for ammonia s~rnthe~is in an unreduced state.,' CHFMICTY PRUMYSL, Praha, Czechoslovakia, Vol. 91 No. 4, April 1959. Monthly List of Eant FA.,ro-Dean Accessions (R-AI), LC, Vol. 8, No. 9, SeDteTnl)cr 1959. Unclassified. W"I Ot ARROM '-'4l 0_000 -;in iron' oxides TITU. Moducins"I* Oxidi f " ;~ ,p , -2" '196):'. abstmot- PMUODICAT's -'Rereratl 35 2M25 (ciio 9 iune.. 15, 1961 ft 01144 with, a. kqAieit sto content, (rai niatorial- f,or a.atiay'staC 2 used In vl~ synthesis 06, artikeeli or for eledirode- catalysts) - am abialb4t,by.."Oving ovudi ?a oxid0s.-mith.061-10 times their''.* I wwunt -of X20t log, or K2CO mad Mgt-*Ca,o Al o'-Ti oXidej hydroxide# r carbonate or al irate*`-: -After cooling the melt is 6ozainuted.to L graiA-dize'* of 90 p or to the v1si'of tho'prinary gralus,, ot- Fe 0 in' the '601d Melil 2.3 then It IS.,- tie4ted. w1w, sn'.. (&old) cir H50i 9.. Examp.26: 1900 g of.magnetite waste; frolic%. ~fta to-Swetle.i9parators containing 4-37 weight % SiO Is ftsell In a reflstsaift~ iftlbm'soe wi th 40 a of wh ydr we ~20pj the 446k 1/2. 36/088'- deciac, ue. sineve-diwaae Ik *w%ed w6l* to aminuted to a. grain sixe of 90 p -anit treated for-60 seo.. with =03 it a M(~ -. %wIt raiklo'OU~%3 (v/v). The'reeidual ilklali;llott* to.. drM .'off anti "ehe(i WWI cold vatir.. After drying in', a C-O-Ta weigh 010 -14'-obtatnei,-, 7-4 weight Z. of 70* (ftdftIG%O4 -on Ii S in~titxL quantity) 19,tran6forred to the solution* It.18j% 901. .(ii4d) ~x used- i-astea of 190ji,-4 0059% $102* 4i11 remain in -the dry preftct*.~ IkWftieter'.3 'noi-et CarnpLe_lhe -translation I BREMITAy Vitezslav- VALCHAI Jirir; STEPANEKy Radislav Use of Bohemian magnetites for preparation of ammonia synthesis catalysts. Part 2 : Chemical method of magnetite purification and preparation of catalysts. Chem prum 12 no.12:645-649 D 162. 1. Vyzkvmn~ -dstav organielctch syntez, Pardubice - Rybitvi. - - I Brezina, V. Design of steel bases for columns. P. 136. INZENYRSKE STAVBY. (Ministerstvo stavebnietvi) Praha. Vol. 2, no. 4, April 1954. Source: EEAL IL Vol. 5, No. 10 Oct. 1956 - - --, -- I - ~ - I - I - -- . - - - -1 BREZINA, V. End conditions and stability of thin-walled, centrally loaded bars of open ems section with one axis of symmetry. p. 266, INZENYRSKE STAVBY. ~raha. Vol. 2, no. 7. July 1954. SOURCE: East European Accessions List (EFAL), LC, Vol. 5, no. 3, March 1956.