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Sample records for zapazdyvayushchikh nejtronov pri

  1. The Determination of Uranium in Urine by Delayed Neutron Counting; Dosage de l'Uranium dans l'Urine par Comptage des Neutrons Differes; Opredelenie soderzhaniya urana v moche putem scheta zapazdyvayushchikh nejtronov; Determinacion del Uranio Contenido en la Orina por Recuento de Neutrones Retardados

    Energy Technology Data Exchange (ETDEWEB)

    Brookes, I. R. [Atomic Weapons Research Establishment, Aldermaston, Berks. (United Kingdom)

    1965-10-15

    recipiente adecuado y se introduce por un sistema de tubos neumaticos en el nucleo del reactor HERALD, donde es irradiado en un flujo termico de 3,94 * 10{sup 12}n/cm{sup 2} s, aproximadamente. Al cabo de 1 min de irradiacion la muestra vuelve automaticamente al laboratorio, donde el frasco que la.contiene se coloca en el contador neutronico que se conecta a los 25 s de haber salido la muestra del reactor. La muestra se recuenta durante 1 min. Las muestras testigo consisten en orina de personas no expuestas profesionalmente al uranio, y el patron de calibracion, en una cantidad conocida de {sup 235}U (en forma de uranio natural). El limite de deteccion es de 0,020 pCi de uranio enriquecido al 93% (0,007 de la carga corporal maxima admisible) y 0,036 {mu}g de uranio natural por 100 mi de orina. El limite de deteccion depende de la' actividad de la muestra testigo determinada por recuento. La actividad principal de la muestra testigo se debe a los emisores gamma formados por irradiacion de la orina. El ciclo de irradiacion y recuento dura unos 3,5 min y en una jornada de trabajo se pueden evaporar y envasar 50 muestras. A los efectos del analisis de orina, es despreciable la interferencia del {sup 239}Pu. (author) [Russian] Pri jetom metode soderzhanie urana-235 opredeljaetsja putem scheta zapazdyvajushhih nejtronov, ispuskaemyh posle delenija urana-235 v obrazce teplovymi nejtronami. Tri gruppy nejtronov, predstavljajushhie interes, imejut periody poluraspada 55,72, 22,72 i 6,22 sek. 100 ml mochi isparjajut do suhogo ostatka v vodjanoj vanne. Ostatok pomeshhajut v. polijetilenovuju butylku vesom v odnu unciju vmeste primerno s 4 - 5 ml, a zatem butylku zapaivajut v gorjachem sostojanii. Butylku s obrazcom pomeshhajut v kontejner i napravljajut cherez sistemu pnevmaticheskih trub v aktivnuju zonu reaktora HERALD,gde ona obluchaetsja v potoke teplovyh nejtronov, sostavljajushhem priblizitel'no 3,94 * 10{sup 12} n/sm{sup 2} sek. Posle obluchenija v techenie odnoj minuty obrazec

  2. The Pulsed Neutron Technique Applied to Fast Non-Multiplying Assemblies; Application de la Methode des Neutrons Pulses aux Assemblages Non Multiplicateurs a Neutrons Rapides; Primenenie metoda impul'snykh nejtronov pri izuchenii povedeniya bystrykh nejtronov v nerazmnozhayushchikh sborkakh; Aplicacion de la Tecnica de los Neutrones Pulsados a Conjuntos Rapidos de Materiales No Multiplicadores

    Energy Technology Data Exchange (ETDEWEB)

    Beghian, L. E.; Wilensky, S. [Massachusetts Institute of Technology, Cambridge, MA (United States)

    1965-10-15

    mozhno opredelit' putem izmerenija postojannoj spada v zavisimosti ot razmera sborki. Predstavlen teoreticheskij vyvod dlja rascheta doli uprugogo rassejanija v chlene utechki i, sledovatel'no, mozhno opredelit' sechenie neuprugogo rassejanija. Teoreticheskaja traktovka dlja rascheta vklada uprugogo rassejanija proverena jeksperimental'nym putem. Sechenie neuprugogo rassejanija zheleza izmereno s pomoshh'ju jetogo metoda dlja pervichnoj jenergii nejtronov v diapazone 0,8 -1,5 Mjev. Vysheopisannyj metod impul'snogo istochnika nejtronov byl ispol'zovan dlja. izmere nija postojannoj spada v otnoshenii svincovyh plastin. Jeksperimental'nye dannye primerno soglasujutsja s predpolozhenijami, kotorye obychno delajut pri reshenii bol'cmanovskogo uravnenija perenosa s vremennoj zavisimost'ju (t.e. odnomernoe, odnoskorostnoe). Postojannye spada izmereny dlja svincovyh plastin razmerom 28x32 djujma i tolshhinoj 2; 4; b i 8 djujmov. Posle vnesenija popravki na poterju jenergii i konechnye razmery sborki rezul'taty sravnivajutsja s priblizitel'nymi reshenijami bol'cmanovskogo uravnenija perenosa. (author)

  3. Improved Techniques for Low-Flux Measurement of Prompt Neutron Lifetime, Conversion Ratio and Fast Spectra; Methodes Perfectionnees de Mesure de la Duree de Vie des Neutrons Instantanes, du Rapport de Conversion et des Spectres de Neutrons Rapides, dans un Reacteur a Bas Flux; Usovershenstvovannye metody izmereniya vremeni zhizni mgnovennykh nejtronov, koehffitsienta konversii i spektra bystrykh nejtronov pri slabykh potokakh nejtronov; Tecnicas Perfeccionadas para la Determinacion del Periodo de los Neutrones Inmediatos, la Razon de Conversion y los Espectros de Neutrones Rapidos, con Flujos Reducidos

    Energy Technology Data Exchange (ETDEWEB)

    Armani, R. J.; Bennett, E. F.; Brenner, M. W.; Bretscher, M. M.; Cohn, C. E.; Huber, R. J.; Kaufmann, S. G.; Redman, W. C. [Argonne National Laboratory, Argonne, IL (United States)

    1964-02-15

    medir este valor en un reactor de flujo reducido, pero se estan estudiando algunos que pueden servir a ese fin. Los autores resefian tres de las tecnicas que ofrecen mejores perspectivas. Los estudios realizados con el proposito de construit un espectrometro pequeflo para neutrones rapidos con buenas caracteristicas de estabilidad, poder de resolucion y sensibilidad, destinado a la medicion de espectros neutronicos dentro del reactor, en el intervalo energetico de las decenas o centenares de kilovoltios, se han concentrado en el empleo del analisis de la forma de los impulsos (con el fin de rechazar los sucesos iniciados por los rayos gamma en los contadores proporcionales de retroceso de hidtogeno) y el empleo de la colimacion en los detectores tipo sandwich, a base de {sup 6}LiF en un material solido, a fin de aumentar el poder de resolucion. Se ha construido cierto ndmero de instrumentes de este tipo y se esta estudiando la forma en que se comportan frente a los neutrones monocineticos y los neutrones de un reactor. Recurriendo a la tecnica de rechazo de los rayos gamma, se ha podido reducir varios cientos de veces la sensibilidad del contador de retroceso frente a dichos rayos y de esta manera, el limite inferior de aplicacion del instrumente se ha extendido por lo menos hasta los 30 keV. En cuanto a los instrumentes de semiconductors a base de {sup 6}Li, se han observado poderes de resolucion de hasta 70 keV de amplitud total en correspondencia con la mitad del maximo (1,5%) para la suma de los impulsos, en la irradiaeion con neutrones termicos. (author) [Russian] Pri osushhestvlenii programmy issledovanija reak- tora nulevoj moshhnosti (ZPR) primenjalis' razlichnye statisticheskie metody izmerenija ot- noshenija vremeni zhizni mgnovennyh nejtronov k doze zapazdyvajushhih nejtronov. Odin metod, a imenno analiz ''shuma'' reaktora s pomoshh'ju polosovogo fil'tra byl razrabotan v laboratorii, a drugie, naprimer izmerenie chastoty zapazdyvajushhih sovpadenij impul

  4. The effective lifetime and temperature coefficient in a coupled fast-thermal reactor; Temps de vie effectif et coefficient de temperature dans un reacteur a couplage neutrons rapides-neutrons thermiques; Ehffektivnyj srok zhizni i temperaturnyj koehffitsient nejtronov v dvoyakom reaktore na bystrykh i teplovykh nejtronakh; Vida efectiva y coeficiente de temperatura en un reactor con acoplamiento rapido-termico

    Energy Technology Data Exchange (ETDEWEB)

    Haefele, W. [Kernforschungszentrum, Karlsruhe (Germany)

    1962-03-15

    . Teplovoj komponent dejstvuet kak svoego roda zamedlitel' vremeni zhizni nejtronov. Kak i v teorii zapazdyvayushchikh nejtronov, ehffekt zapazdyvaniya ischezaet, esli reaktivnost' dostatochno vysoka, chtoby bystryj komponent stal kritichnym sam po sebe. V issledovanii rassmatrivalsya sparennyj reaktor, v kotorom bystryj komponent podvergaetsya dejstviyu vnezapnogo stupenchatogo skachka reaktivnosti {alpha}{sub 0}. Izza vozrastayushchego urovnya ehnergii temperatura podnimaetsya i nachinayut rabotat' dva temperaturnykh koehffitsienta: temperaturnyj koehffitsient bystrogo komponenta i temperaturnyj koehffitsient teplovogo komponenta. Ehta problema rassmatrivaetsya s odnoj gruppoj zapazdyvayushchikh nejtronov (v obychnom znachenii). Privoditsya formalizm dlya vyrazheniya ehffektivnogo sroka zhizni i temperaturnogo koehffitsienta vo vremya razlichnykh stadij issledovaniya. Dany takie otkloneniya dlya razlichnykh znachenij {alpha}{sub 0}, pri kotorykh dostigaetsya predel kinetiki reaktorov na bystrykh nejtronakh. (author)

  5. Data Evaluation Problems in the Pulsed Neutron Source Method; Problemes d'Evaluation des Donnees dans les Applications de la Methode de la Source Pulsee; Problemy otsenki dannykh pri primenenii metoda istochnika impul'snykh nejtronov; Problemas de Evaluacion de Datos en el Metodo de la Fuente de Neutrones Pulsados

    Energy Technology Data Exchange (ETDEWEB)

    Pal, L.; Bod, L.; Szatmary, Z. [Central Research Institute for Physics, Hungarian Academy of Sciences, Budapest (Hungary)

    1965-08-15

    muy importante determinar directamente el parametro caracteristico del fondo, partiendo de los datos de desin tegracion obtenidos empleando diversas demoras. Los parametros de difusion se calcularon con el metodo de los cuadrados minimos ponderados, empleando las constantes de desintegracion de desviacion tipo minima obtenidas segun la funcion de maxima probabilidad. Como no se conocian los valores del recorrido libre medio de transporte para los materiales investigados, se ideo un procedimiento de iteracion rapidamente convergente para determinarlo. Con la calculadora se pudieron determinar los coeficientes de orden B{sup 6} y los terminos superiores de la constante de desintegracion. Los parametros de difusion de los materiales hidrogenados investigados se calcularon con la formula de Radkowsky, partiendo de la variacion de las secciones eficaces integrales de dispersion en funcion de la energia. Los calculos demuestran que la formula de Radkowsky proporciona un metodo empirico muy util para evaluar el recorrido libre medio de transporte en gran numero de materiales hidrogenados. (author) [Russian] Dlja opredelenija diffuzionnyh parametrov teplovyh nejtronov uzhe bolee desjati let primenjaetsja impul'snyj metod. Jetot metod okazalsja ves'ma podhodjashhim dlja issledovanija gidrogennyh zamedlitelej. Soobshhajutsja rezul'taty izmerenij v vode, benzole, toluole, ksilon-ciklogeksane, n-geksane i difenile; obsuzhdajutsja metody, s po- moshh'ju kotoryh na osnovanii izmerennyh dannyh s naimen'shej pogreshnost'ju mozhno opre- delit' parametry diffuzii, predstavljajushhie interes. Vvidu togo, chto pri issledovanii zamedlitelej pri vysokih temperaturah vstrechajutsja zatrudnenija tehnicheskogo haraktera iz-za projavlenija vozdejstvija vremeni proleta, chto oka- zyvaet vlijanie na velichinu konstanty raspada, to jeto javlenie podrobno issleduetsja kak teoreticheski, tak i jeksperimental'no; ukazyvajutsja geometricheskie uslovija, dajushhie voz- mozhnost' obespechit

  6. Relative Biological Effectiveness of 14-MeV Fast Neutrons to Co{sup 60} Gamma-Rays in Einkorn Wheat; Efficacite Biologique Relative des Neutrons Rapides de 14 MeV par Rapport aux Rayons Gamma de {sup 60}Co sur l'Engrain; Otnositel'naya biologicheskaya ehffektivnost' bystrykh nejtronov s ehnergiej 14 MeV i gamma-luchej CO{sup 60} pri ikh dejstvii na pshenitsu odnozernyanku; EBR de los Neutrones Rapidos de 14 MeV y de los Rayos Gamma del {sup 60}Co en el Trigo Escanda Menor

    Energy Technology Data Exchange (ETDEWEB)

    Fujii, T. [National Institute of Genetics, Misima (Japan)

    1964-05-15

    , sobrevivio entre 60 y 80% de las plantulas y en los grupos tratados con rayos gamma, la supervivencia fue del 100%. En cambio, en el grupo sometido a la irradiacion neutronica con la dosis mas elevada, solo sobrevivio un 4% de las plantulas. No se observaron mutaciones en el grupo testigo y el numero de plantas que presentaba retonos rayados crecio al aumentar la dosis de ambos tipos de radiacion. Se observaron retoflos con mutaciones en un 15% de las plantas sobrevivientes tratadas con la dosis inferior de neutrones y la misma frecuencia se registro para la dceis mayor de rayos gamma. Al parecer, la EBR de los neutrones de 14 MeV con respecto a los rayos gamma de {sup 60}Co, para la mutacion somatica, es 20 como minimo. (author) [Russian] Avtor izuchal OBJe nejtronov s jenergiej 14 Mjev i gamma-luchej Sobo pri ih dejstvii na pshenicu odnozernjanku s pomoshh'ju special'nogo lokusnogo metoda. Dlja opyta ispol'zovalis' semena generacii F{sub 1} gibrida mezhdu ishodnym sortom i mutantom Chlorina (mutant Chlorina byl poluchen kak edinstvennyj recessivnyj rentgenomutant; ot stadii sejanca do nastuplenija spelosti on byl odnorodno svetlozelenym s otnositel'no vysokoj vyzhivaemost'ju i urozhajnost'ju). U rastenij F{sub 1} byla normal'naja zelenaja okraska i normal'nyj harakter rosta. Pokojashhiesja semena Ft obluchali bystrymi nejtronami v dozah 0,5, 1,0 i 1,4 krad i gamma-luchami v dozah 4,3 8,6 i 12,9 krad. Mutacii ot dominantnyh normal'nyh zelenyh do Chlorina nabljudalis' posle oboih vidov obluchenija i pojavljalis' v list'jah i stebljah geterozigotnyh rastenij X{sub 1} v vide prodol'nyh polos. Okolo 80% semjan vzoshlo na kontrol'nyh uchastkah i na uchastkah posle obluchenija ca- mymi nizkimi dozami nejtronov i gamma-luchej, procent vshozhesti postepenno snizhalsja s povysheniem dozy pri oboih vidah obluchenija. Krome togo, takaja zhe tendencija nabljudalas' i na rannih stadijah rosta sejancev, kotoryj postepenno tormozilsja s povysheniem dozy. Soglasno jetim dannym nejtronnoe

  7. MOTIVACIJA PRI LIKOVNI VZGOJI

    OpenAIRE

    Kerin, Tjaša

    2011-01-01

    V teoretičnem delu diplomskega dela predstavljamo splošen pojem motivacije, pomen motivacije ter teoretična izhodišča. Povezujemo splošna teoretična izhodišča s poučevanjem likovne vzgoje ter artikulacijske značilnosti pri njenem pouku. Ob tem smo tudi izpostavili pomembnost motivacije pri likovni vzgoji ter navedli nekaj možnosti za uspešno realizacijo le-te. Dotaknili smo se tudi individualizacije pri likovni vzgoji ter sredstev za spodbujanje motivacije. V empiričnem delu dela predsta...

  8. VEDENJSKE MOTNJE PRI OTROCIH

    OpenAIRE

    Jaušovec, Špela

    2015-01-01

    Osnovni namen magistrskega dela je prispevati k boljšemu razumevanju motenj vedenja pri otrocih in mladostnikih ter obravnavati vpliv motenj vedenja na otrokovo funkcioniranje in vedenje. O motnjah vedenja je napisanega že veliko, še več pa ostaja neraziskanega in nerazumljenega. Magistrsko delo je zasnovano teoretično. S pomočjo strokovne literature in virov tako poskuša podrobno opredeliti motnje vedenja, njihove varovalne dejavnike in dejavnike tveganja, definirati družinsko in šolsko...

  9. Dieta pri hiperholesterolemiji

    OpenAIRE

    Čerček Vilhar, Emanuela

    2017-01-01

    Holesterol je maščobna molekula, ki v telesu opravlja mnogo funkcij. Njegova biosinteza in pot po telesu kot nepolarna molekula je izredno zapletena. Pri tem se vključuje v lipoproteine in prehaja v jetra, kjer poteka glavna pot presnavljanja ter tvorba žolčnih soli. Značilno je, da holesterol v našem organizmu izvira iz dveh virov. Eno tretjino ga zaužijemo s hrano, preostanek pa ga tvorimo sami iz predhodne molekule acetil-CoA. Ljudje se v današnjem času čedalje pogosteje srečujejo s poviša...

  10. Relation of photofission cross sections and delayed neutron photoproduction in the range of E1-giant resonance. Sootnoshenie mezhdu secheniyami fotodeleniya i fotoobrazovaniya zapazdyvayushchikh nejtronov v oblasti E1-gigantskogo rezonansa

    Energy Technology Data Exchange (ETDEWEB)

    Ganich, P P; Parlag, O A; Sikora, D I; Sychev, S I

    1989-03-01

    Relation between yields and cross sections of photofission and photoproduction is studied in order to use them in the methods for analysis of fissile nuclides. Total yield of delayed neutrons from the {sup 232}Th target and ratios of total yields from {sup 238}U and {sup 232}Th targets were measured in the M=300 microtron in 6-18 MeV energy range. Efficiency of the suggested method for refining the {sup 238}U photofission cross sections in the range of E1-giant resonance is shown.

  11. The determination of sulphur in materials of high neutron absorption cross-section by fast-neutron activation analysis; Determination du soufre dans les matieres de forte section efficace d'absorption neutronique, au moyen d'une analyse par activation avec des neutrons rapides; Opredelenie sery v materialakh s bol'shim secheniem pogloshcheniya nejtronov metodom aktivatsionnogo analiza bystrykh nejtronov; Determinacion del azufre en sustancias de elevada seccion eficaz de absorcion neutronica mediante analisis por activacion con neutrones rapidos

    Energy Technology Data Exchange (ETDEWEB)

    Gibbons, D; Simpson, H [Wantage Research Laboratory (A.E.R.E.), Wantage, Berks. (United Kingdom)

    1962-01-15

    secciones eficaces de absorcion para los neutrones rapidos son mucho mas bajas que para los lentos lo cual reduce considerablemente los errores debidos al autoblindaje. La interferencia debida a la reaccion (n, {gamma}) causada por los neutrones lentos en el fosforo natural puede eliminarse gracias a una tecnica que consiste en efectuar irradiaciones dobles en regiones del reactor en que varien las razones del flujo de neutrones lentos a neutrones rapidos. El metodo se ha aplicado a la determinacion del azufre en cromo y arsenico. (author) [Russian] Proizvodstvo radiofosfora pri vzaimodejstvii bystrykh nejtronov (n, p) s seroj ispol'zuetsya dlya opredeleniya sery s pomoshch'yu aktivatsionnogo analiza. Ispol'zovanie dannogo metoda pozvolyaet opredelit' nalichie sery v materialakh s bol'shim secheniem pogloshcheniya teplovykh nejtronov, t.k. sechenie pogloshcheniya bystrykh nejtronov, kak pravilo, znachitel'no men'she, chem medlennykh nejtronov, chto pozvolyaet zametno snizit' veroyatnost' oshibok iz-za samozashchity. Pomekhi iz-za reaktsii (n, {gamma}) na medlennykh nejtronakh s estestvennym fosforom ustranyayutsya metodom dvojnogo oblucheniya v mestakh s razlichnym otnosheniem potokov bystrykh i medlennykh nejtronov. Dannyj metod primenyalsya dlya opredeleniya sery v khrome i mysh'yake. (author)

  12. Uporaba hipnoze pri preiskovanju kaznivih dejanj

    OpenAIRE

    Radić, Janja

    2016-01-01

    V svojem diplomskem delu predstavljam tehniko hipnoze kot metodo za izboljšanje spomina pri pričah in žrtvah kaznivih dejanj. Posvetim se pojmovanju in uporabi hipnoze skozi zgodovino, nato pa podam še njeno definicijo in tehnike. Poleg načina uporabe hipnoze pri preiskovanju kaznivih dejanj, predstavim tudi njene prednosti in slabosti, opišem potek hipnotiziranja ter vlogo in funkcijo hipnotizerja. V zadnjih dveh poglavjih pojasnim vpliv spomina na hipnotične informacije ter predstavim pravn...

  13. Presence of pRI1:

    DEFF Research Database (Denmark)

    Migura, Lourdes Garcia; Hasman, Henrik; Jensen, Lars Bogø

    2009-01-01

    This study focused on the molecular characterization of a small cryptic, mobilizable plasmid (6038 bp) sequenced from an E. faecium 9631160-1 of poultry origin. Sequence analysis of pRI1 revealed seven open reading frames. pRI1 contained an IS 100% identical to ISEfa4. This insertion element...... almost identical to the repA from the pEFNP1 and pKQ10 plasmids from E. faecium was also identified. Presence of the pRI1 replication initiation gene (rep) was analyzed in a panel of 159 E. faecium isolates of human and animal origin from different European countries, of which 60 tested positive...

  14. Uporaba BIM pri projektiranju cestne infrastrukture

    OpenAIRE

    Svetina, Gregor

    2018-01-01

    Magistrsko delo obravnava uporabo informacijskega modeliranja gradenj (angl. Building Information Modeling, kratica BIM) v infrastrukturnih projektih. Pri tem je kot primer uporabljen projekt Druge cevi predora Karavanke, pri katerem je bil BIM dejansko uporabljen. Naredili smo modele cest, ki se bodo uporabljale za odvoz materiala na deponije. Najprej je predstavljenih nekaj osnov o BIM-u, vključno s predstavitvami lastnosti 3D, 4D, 5D in 6D modelov, ovrednotenjem BIM-a, stopnjami podrobn...

  15. Moderation of Neutrons Emitted by a Pulsed Source and Neutron Spectrometry Based on Slowing-Down Time; Ralentissement des Neutrons Emis par une Source Pulsee et Leur Spectrometrie en Fonction du Temps de Ralentissement; Zamedlenie nejtronov, ispuskaemykh impul'snym istochnikom, i spektrometriya nejtronov po vremeni zamedleniya; Moderacion de Neutrones Emitidos por una Pitente Pulsada y Espectrometria Neutronica Basada en el Tiempo de Frenado

    Energy Technology Data Exchange (ETDEWEB)

    Bergman, A. A.; Isakov, A. I.; Kazarnovskij, M. V.; Popov, Ju. P.; Shapiro, F. L. [Fizicheskij Institut Im. P.N. Lebedeva AN SSSR, Moskva, SSSR (Russian Federation)

    1965-08-15

    orbital 1 = 1. (author) [Russian] V Fizicheskom institute im. P.N.Lebedeva AN SSSR na protjazhenii poslednih 10 let byl vypolnen rjad rabot po issledovaniju nestacionarnogo zamedlenija nejtronov v tjazhelyh sredah, razvitiju metoda spektrometrii nejtronov po vremeni zamedlenija i primeneniju jetogo metoda dlja izuchenija jenergeticheskoj zavisimosti sechenij jadernyh reakcij, vyzyvaemyh nejtronami s jenergiej do 30 kjev. V nastojashhem doklade daetsja obzor jetih issledovanij i obsuzhdajutsja ih itogi. V doklade posle kratkogo rassmotrenija teorii nestacionarnogo zamedlenija i termalizacii nejtronov izlagajutsja rezul'taty jeksperimental'nogo izuchenija zamedlenija nejtronov v grafite, zheleze i svince i izuchenija termalizacii nejtronov v svince. Pri pomoshhi impul'snogo istochnika nejtronov i rezonansnyh detektorov bylo izmereno raspredelenie vremen zamedlenija do rjada fiksirovannyh znachenij konechnoj jenergii nejtrona. Provedeno sravnenie poluchennyh rezul'tatov s teoriej, uchityvajushhej teplovoe dvizhenie atomov zamedlitelja, kotoroe v sluchae svinca privodit k izmerimomu razbrosu vremen zamedlenija pri jenergijah nizhe 10 jev. Dlja podkadmievoj oblasti jenergij izmerena zavisimost' srednej skorosti nejtronov v svince ot vremeni zamedlenija i provedeno sravnenie s mnogogruppovoj teoriej. Opisana primenjavshajasja metodika opredelenija jenergeticheskoj zavisimosti sechenij nejtronnyh reakcij po vremeni zamedlenija i obsuzhdajutsja vozmozhnosti i perspektivy jetogo metoda spektrometrii. Kratko obsuzhdajutsja rezul'taty spektrometricheskih izmerenij, kotorye velis' v dvuh napravlenijah. Pervoe napravlenie -precizionnye izmerenija jenergeticheskoj zavisimosti jenergeticheskogo hoda otnoshenij sechenij reakcij He{sup 3}(n, p), Li{sup 6}(n, {alpha}), B{sup 10}(n, {alpha}) i N{sup 14}(n, p). Naibolee interesnyj rezul'tat jetih opytov -obnaruzhenie postojannoj otricatel'noj slagajushhej sechenija reakcij i ukazanija na sushhestvovanie vozbuzhdennogo urovnja Ne{sup 4

  16. VLOGA DIGITALNIH POTRDIL PRI ELEKTRONSKEM POSLOVANJU

    OpenAIRE

    Zorman, Tjaša

    2010-01-01

    Uporaba elektronskega poslovanja je danes v svetu in pri nas zelo razširjena. Število uporabnikov elektronskega bančništva kot elementa elektronskega poslovanja se je od leta 2000 do leta 2008 povečalo skoraj za 30-krat. Vedno večje število uporabnikov kaže na pomembnost in uporabnost elektronskega bančništva pri nas. Del uspešnosti elektronskega bančništva lahko pripišemo njegovi varnosti, ki s svojimi elementi sodi v sam vrh kakovosti. Uporabniki elektronskega bančništva se zavedajo, d...

  17. PriBots: Conversational Privacy with Chatbots

    OpenAIRE

    Harkous, Hamza; Fawaz, Kassem; Shin, Kang G.; Aberer, Karl

    2016-01-01

    Traditional mechanisms for delivering notice and enabling choice have so far failed to protect users’ privacy. Users are continuously frustrated by complex privacy policies, unreachable privacy settings, and a multitude of emerging standards. The miniaturization trend of smart devices and the emergence of the Internet of Things (IoTs) will exacerbate this problem further. In this paper, we propose Conversational Privacy Bots (PriBots) as a new way of delivering notice and choice through a two...

  18. Use of Synthetic Polymers in Nuclear Emulsions for Fast-Neutron Dosimetry; Primenenie sinteticheskikh polimerov v yadernykh ehmul'siyakh dlya dozimetrii bystrykh nejtronov

    Energy Technology Data Exchange (ETDEWEB)

    Bradna, F. [Laboratorija Radiologicheskoj Dozimetrii Instituta Jadernykh Issledovanij CHSAN Praga, CSSR (Czech Republic)

    1967-01-15

    jemul'sij, odnako fiziko-mehanicheskie svojstva polimero-zhelatinovyh jemul'sij znachitel'no luchshe svojstv obychnyh zhelatinovyh jemul'sij. Polimery obladajut horoshimi zashhitnymi svojstvami i polimer No 2 prigoden dazhe v fizicheskom sozrevanii, poskol'ku on malo tormozit jetot process. V techenie estestvennogo starenija fotohimicheskie svojstva polimero-zhelatinovyh jemul'sij prakticheski ne izmenjalis' i eshhe dal'she znachitel'no povyshalas' ih mehanicheskaja prochnost'. V rezul'tate ukazannyh predvaritel'nyh opytov polimery No 1 i No 2 primenjalis' v kachestve napolnitelej jadernoj jemul'sii v kolichestve ot 50 do 70% po otnosheniju k obshhemu kolichestvu zashhitnogo kolloida, ne izmenjaja v dannoj jemul'sii soderzhanie serebra. Dlja dal'nejshego povyshenija jeffektivnosti jemul'sij polimero-zhelatinov'te jemul'sii nasyshhalis' vodorodom putem vremennogo propuskanija cherez ego zhidkuju jemul'siju. Gotovye jemul'sii nalivalis' na triacetatnuju podlozhku tolshhinoj 190 mikron, kotoraja javljaetsja v zhelaemom sluchae jeffektivnym radiatorom protonov. Jemul'sii obluchalis' bystrymi nejtronami plotnost'ju 1,56 * 108 nejtronov/sm{sup 2} ot istochnika (Ra - D - Be). S cel'ju uvelichenija jeffektivnosti registracii nejtronov, pri obluchenii jemul'sij ispol'zovalis' dobavochnye radiatory protonov tipa: polivinilovyj spirt (PVS), triacetat (T), polijetilen (PJe) optimal'noj tolshhiny. Obrabotka rezul'tatov s dozimetricheskoj tochki zrenija pokazala sledujushhie rezul'taty: 1. Po sravneniju s obychnymi zhelatinovymi jemul'sijami jeffektivnost' registracii povysilas': - do 25% v sluchae primenenija polimerov No 1 i No 2 v zavisimosti ot stepeni napolnenija; . - na 100% v sluchae primenenija polimera No 1 v vodorodom nasyshhennoj jemul'sii, prinjatoj v kachestve standarta polimero-zhelatinovoj jemul'sii (SPZhJe). 2. V sluchae primenenija optimal'nyh dobavochnyh radiatorov protonov (PVS, T, PJe) k ukazannoj jemul'sii SPZhJe, ee jeffektivnost' registrkcii povysilas' dal

  19. Some Measurements of Thermal Neutron Spectra; Mesure de Spectres de Neutrons Thermiques; Nekotorye izmereniya spektrov teplovykh nejtronov; Algunas Mediciones de Espectros de Neutrones Termicos

    Energy Technology Data Exchange (ETDEWEB)

    Poole, M. J.; Schofield, P.; Sinclair, R. N. [United Kingdom Atomic Energy Authority, Research Group, Atomic Energy Research Establishment, Harwell (United Kingdom)

    1964-04-15

    gomogennyh zamedliteljah. Jeta rabota osushhestvljaetsja paralell'no i v prodolzhenie bolee rannej raboty avtora, sluzhit dlja proverki prigodnosti poperechnyh sechenij perehoda jenergii afE'-E), vyvodimyh iz primenjaemogo zakona rassejanija. Odnako takoj opyt absoljutno nechuvstvitelen k uglovoj zavisimosti rassejanija i sootvetstvujushhej chasti poperechnogo sechenija rassejanija, ne vyzyvajushhej obmena jenergiej s nejtronom rassejanija, prichem oba jeti momenta igrajut vazhnuju rol' v reshenii ljuboj problemy prostranstvennoj zavisimosti. Sootvetstvenno osushhestvljalis' drugie opyty, v kotoryh narochno vvodilis' razryvy prostranstvennoj i teplovoj nepreryvnosti, chtoby postavit' spektr v zavisimost' ot polnogo zakona rassejanija. Pervym iz takih opytov javljaetsja tak nazyvaemyj {sup o}pyt s dvumja blokami{sup ,} v kotorom teplovye nejtrony diffundirujut iz grafitovogo bloka pri komnatnoj temperature vo vtoroj blok, temperatura kotorogo mozhet podnimat'sja do 400 Degree-Sign S. Spektry nejtronov izmerjajutsja v razlichnyh polozhenijah okolo razryva temperaturnoj nepreryvnosti putem vydelenija puchka nejtronov iz kazhdogo polozhenija i propuskanija ego cherez spektrometr po vremeni proleta s selektorom nejtronov. V kachestve predvaritel'nogo analiza iz opyta, kotoryj mozhet byt' sravnen s analogichnymi opytami Benneta i dr. kotorye primenili de- dektory, chuvstvitel'nye k jenergii, vyvodjatsja {sup p}operechnye sechenija retermalizacii{sup .} V celjah poluchenija bolee podrobnyh sravnitel'nyh dannyh v nastojashhee vremja provodjatsja raschety po mnogogruppovoj teorii diffuzii s ispol'zovaniem poluchennyh v Chok-River dannyh po zakonu rassejanija s popytkoj predugadat' formu jenergeticheskogo spektra v polozhenijah v oboih blokah. Vo vtorom opyte vmesto razryva teplovoj nepreryvnosti vvoditsja razryv prostranstvennoj nepreryvnosti. Kadmievyj disk dostatochnoj tolshhiny, chtoby schitat'sja ''chernym'' dlja vseh nejtronov s jenergiej men'she 0,4 jev, zakrepljaetsja v centre

  20. VLOGA ODRASLIH OSEB PRI SPODBUJANJU BRALNE MOTIVACIJE

    OpenAIRE

    Kralj, Saša

    2010-01-01

    Branje je pomembna dejavnost, ki vpliva na osebnostni razvoj posameznika, učenje in učno uspešnost. Vse pozitivne plati branja se vse bolj pozabljajo ob hitrem tempu življenja. Učitelji in knjižničarji imajo velik pomen pri spodbujanju branja. S svojim znanjem o dobrobiti branja, z uporabo različnih metod in oblik dela lahko pritegnejo starše in skupaj spodbujajo učence k branju ter tako skušajo vzgojiti bralca za vse življenje. Namen diplomskega dela je osvetliti pomen branja, bralne pismeno...

  1. G-Quadruplexes influence pri-microRNA processing.

    Science.gov (United States)

    Rouleau, Samuel G; Garant, Jean-Michel; Bolduc, François; Bisaillon, Martin; Perreault, Jean-Pierre

    2018-02-01

    RNA G-Quadruplexes (G4) have been shown to possess many biological functions, including the regulation of microRNA (miRNA) biogenesis and function. However, their impact on pri-miRNA processing remains unknown. We identified G4 located near the Drosha cleavage site in three distinct pri-miRNAs: pri-mir200c, pri-mir451a, and pri-mir497. The folding of the potential G4 motifs was determined in solution. Subsequently, mutations disrupting G4 folding led to important changes in the mature miRNAs levels in cells. Moreover, using small antisense oligonucleotides binding to the pri-miRNA, it was possible to modulate, either positively or negatively, the mature miRNA levels. Together, these data demonstrate that G4 motifs could contribute to the regulation of pri-mRNA processing, a novel role for G4. Considering that bio-informatics screening indicates that between 9% and 50% of all pri-miRNAs contain a putative G4, these structures possess interesting potential as future therapeutic targets.

  2. Synthesis and Biological Activity of Diastereomeric and Geometric Analogs of Calcipotriol, PRI-2202 and PRI-2205, Against Human HL-60 Leukemia and MCF-7 Breast Cancer Cells

    Directory of Open Access Journals (Sweden)

    Andrzej Kutner

    2013-10-01

    Full Text Available Diastereomeric and geometric analogs of calcipotriol, PRI-2202 and PRI-2205, were synthesized as advanced intermediates from vitamin D C-22 benzothiazoyl sulfones and side-chain aldehydes using our convergent strategy. Calcitriol, calcipotriol (PRI-2201 and tacalcitol (PRI-2191 were used as the reference compounds. Among a series of tested analogs the diastereomeric analog PRI-2202 showed the strongest antiproliferative activity on the human breast cancer cell line MCF-7, whereas the geometric analog PRI-2205 was the weakest. Both analogs were less potent in antiproliferative activity against HL-60 cells compared to the reference compounds. The ability to potentiate antiproliferative effect of cisplatin or doxorubicin against HL-60 cells or that of tamoxifen against the MCF-7 cell line was observed at higher doses of PRI-2202 or PRI-2205 than those of the reference compounds. The proapoptotic activity of tamoxifen, expressed as the diminished mitochondrial membrane potential, as well as the increased phosphatidylserine expression, was partially attenuated by calcitriol, PRI-2191, PRI-2201 and PRI-2205. The treatment of the MCF-7 cells with tamoxifen alone resulted in an increase in VDR expression. Moreover, a further increase in VDR expression was observed when the analogs PRI-2201 or PRI-2205, but not PRI-2191, were used in combination with tamoxifen. This observation could partially explain the potentiation of the antiproliferative effect of tamoxifen by vitamin D analogs.

  3. Synthesis and Biological Activity of Diastereomeric and Geometric Analogs of Calcipotriol, PRI-2202 and PRI-2205, Against Human HL-60 Leukemia and MCF-7 Breast Cancer Cells.

    Science.gov (United States)

    Milczarek, Magdalena; Chodyński, Michał; Filip-Psurska, Beata; Martowicz, Agnieszka; Krupa, Małgorzata; Krajewski, Krzysztof; Kutner, Andrzej; Wietrzyk, Joanna

    2013-10-31

    Diastereomeric and geometric analogs of calcipotriol, PRI-2202 and PRI-2205, were synthesized as advanced intermediates from vitamin D C-22 benzothiazoyl sulfones and side-chain aldehydes using our convergent strategy. Calcitriol, calcipotriol (PRI-2201) and tacalcitol (PRI-2191) were used as the reference compounds. Among a series of tested analogs the diastereomeric analog PRI-2202 showed the strongest antiproliferative activity on the human breast cancer cell line MCF-7, whereas the geometric analog PRI-2205 was the weakest. Both analogs were less potent in antiproliferative activity against HL-60 cells compared to the reference compounds. The ability to potentiate antiproliferative effect of cisplatin or doxorubicin against HL-60 cells or that of tamoxifen against the MCF-7 cell line was observed at higher doses of PRI-2202 or PRI-2205 than those of the reference compounds. The proapoptotic activity of tamoxifen, expressed as the diminished mitochondrial membrane potential, as well as the increased phosphatidylserine expression, was partially attenuated by calcitriol, PRI-2191, PRI-2201 and PRI-2205. The treatment of the MCF-7 cells with tamoxifen alone resulted in an increase in VDR expression. Moreover, a further increase in VDR expression was observed when the analogs PRI-2201 or PRI-2205, but not PRI-2191, were used in combination with tamoxifen. This observation could partially explain the potentiation of the antiproliferative effect of tamoxifen by vitamin D analogs.

  4. RBE of Monoenergetic Fast Neutrons: Cytogenetic Effects in Maize; EBR des Neutrons Rapides Monoenergeniques: Effets Cytogenetiques sur le Mais; Obeh monoehnergeticheskikh bystrykh nejtronov: tsitogeneticheskie izmeneniya u kukuruzy; EBR de los Neutrones Rapidos Monoenergeticos: Efectos Citogeneticos en el Maiz

    Energy Technology Data Exchange (ETDEWEB)

    Smith, H. H.; Bateman, J. L.; Quastler, H.; Rossi, H. H. [Biology and Medical Departments, Brookhaven National Laboratory, Upton, NY (United States)

    1964-05-15

    nasyshhenija i perekryvalis' v predele dlja monojener- geticheskih bystryh nejtronov i dlja rentgenovskih luchej s naprjazheniem 250 kv. Velichiny OBJe, raschitannye v rezul'tate otnositel'nogo naklona linejnyh regressivnyh linij dlja nejtronov i rentgenovskih luchej, nahodilis' v predelah ot 42 do 135 so srednej velichinoj primerno 70. Bystrye nejtrony s jenergiej 0,43 Mjev byli naibolee jeffektivnymi sredi teh, kotorye ispol'zovalis' pri poluchenii mutantov sektorov g{sub 2}. (author)

  5. Učinkovitost terapevtskega ultrazvoka pri zmanjševanju bolečine pri artrozi kolena

    OpenAIRE

    Blas, Marjeta

    2018-01-01

    Uvod: Artroza je degenerativni proces, ki lahko privede do deformacije kolenskega sklepa ter predvsem pri starejših povzroči težave pri vsakodnevnih opravilih in zmanjša kakovost njihovega življenja. Glavni simptom je bolečina. Pomembno vlogo pri zdravljenju ima fizioterapija. Inštrumentalna fizioterapija, kot je ultrazvok, se pogosto uporablja za zmanjševanje bolečine ali kot predpriprava na vadbo. Namen: Namen diplomskega dela je na osnovi pregleda objavljene strokovne in znanstvene literat...

  6. Differential Neutron Scattering from Hydrogenous Moderators; Diffusion Differentielle des Neutrons par des Ralentisseurs Hydrogenes; Differentsial'noe rasseyanie nejtronov iz vodorodosoderzhashchikh zamedlitelej; Dispersion Diferencial de Neutrones en Moderadores Hidrogenados

    Energy Technology Data Exchange (ETDEWEB)

    Beyster, J. R.; Young, J. C.; Neill, J. M.; Mowry, W. R. [General Atomic Division of General Dynamics Corporation, John Jay Hopkins Laboratory for Pure and Applied Science, San Diego, CA (United States)

    1965-08-15

    nejtronov po napravleniju k neskol'kim polnost'ju pogloshhajushhim nejtrony detektoram. Metod pozvoljaet izmerjat' odnovremenno uglovoe raspredelenie bolee chem dlja 50 energij bombardirujushhih nejtronov. Intensivnosti vysoki, fonovye shumy maly i horosho opredeleny, tak chto izmerenija mogut proizvodit'sja bystro pri vseh uglah rassejanija ot 10 do 155m. Soobshhajutsja rezul'taty izmerenij sechenij differencial'nogo rassejanija dlja vanadija, N{sub 2}O, D{sub 2}O i ZrH. Vanadij izuchen dlja proverki jeksperimental'nogo oborudovanija. Izmerenija s N{sub 2}O dlja obrazcov raznoj tolshhiny v razlichnyh napravlenijah provedeny dlja sopostavlenija s raschetami, osnovannymi na razlichnyh modeljah rassejanija so svjazannym vodorodom, i dlja sravnenija s rabotami Shpringera i Rejnsha. Vo vse jeksperimental'nye izmerenija byli vneseny popravki na nabljudaemoe v obrazcah sil'noe vozdejstvie mnogokratnogo rassejanija. V nastojashhee vremja predskazyvaemoe model'ju rassejanija Nelkina sil'noe izmenenie pri energii nejtronov priblizitel'no v 0,06 jev jeksperimental'no ne nabljudaetsja iz-za togo, chto predpolozhitel'nyj edinyj rotator s tormozheniem pri moshhnosti v 0,06 jev ne predstavljaetsja fizicheski real'nym. Krome togo, jeta prostaja model' ne predugadyvaet pravil'no rassejanie pri bol'shih uglah. Jeksperimental'nye dannye sluzhat dlja celogo rjada poleznyh nadobnostej. Prezhde vsego uglovoe raspredelenie chrezvychajno chuvstvitel'no po otnosheniju k fizicheskim svojstvam modeli rassejanija i pojetomu sluzhit dlja proverki udovletvoritel'nosti jetoj modeli. Vo-vtoryh, jeksperimental'nye rezul'taty chuvstvitel'ny k bolee vysokim porjadkam rassejanija P{sub n} v protivopolozhnost' mnogochislennym integral'nym jeksperimentam, kotorye chuvstvitel'ny glavnym obrazom k rassejaniju P{sub 0}. V chastnosti predstavljaetsja vozmozhnym proverjat' jadro rassejanija P{sub 1} tak, chtoby ono podhodilo dlja dannoj molekuljarnoj modeli. V- tret'ih, na osnovanii jeksperimentov predstavljaetsja

  7. Izzivi in trendi pri vzpostavitvi managmenta destinacije Mirnska dolina

    OpenAIRE

    Žibert, Maja

    2015-01-01

    Diplomska naloga z naslovom Izzivi in trendi pri vzpostavitvi managmenta destinacije Mirnska dolina v veliki meri preverja izvajanje vsebine dokumenta Strateško akcijski načrt pri vzpostavitvi destinacije Mirnska dolina na terenu. Vsebina dokumenta se dotika posameznih prioritet trajnostnega razvoja destinacije. Na terenu smo preko intervjujev s posameznimi deležniki vseh treh sektorjev, ki sestavljajo destinacijo želeli izvedeti, kako oni doživljajo prioritete razvoja. V diplomski nalogi je ...

  8. Biological Effects of Thermal Neutrons and the B{sup 10}(n, {alpha}) Li{sup 7} reaction; Effets Biologiques des Neutrons Thermiques et la Reaction {sup 10}B(n, {alpha}){sup 7}Li; Biologicheskoe dejstvie teplovykh nejtronov i reaktsiya B{sup 10}(n, {alpha}) Li{sup 7}; Efectos Biologicos de los Neutrones Termicos y la Reaccion {sup 10}B(n, {alpha}){sup 7}Li

    Energy Technology Data Exchange (ETDEWEB)

    Archambeau, J. O.; Alcober, V.; Calvo, W. G.; Brenneis, H. [Medical Research Center, Brookhaven National Laboratory, Upton, NY (United States)

    1964-05-15

    -izluchenija, pojavljajushhegosja pri zahvate teplovyh nejtronov jelementami tkani i jekranirujushhih materialov, a takzhe gamma-izluchenija i obluchenija bystrymi nejtronami, pojavljajushhimisja pri processah delenija v aktivnoj zone reaktora. Konechnyj rezul'tat obluchenija teplovymi nejtronami javljaetsja funkciej padajushhego potoka nejtronov. Poskol'ku plotnost' potoka teplovyh nejtronov v tkani bystro padaet (sloj polovinnogo pogloshhenija Approximately-Equal-To 1,8 sm), dlja obespechenija vysokih doz v glubine na poverhnost' dolzhny popadat' bol'shie dozy. Pojetomu reakcii legkih, kishechnika, kostnogo mozga i slizistoj obolochki zavisjat glavnym obrazom, ot gamma-obluchenija v rezul'tate zahvata nejtronov vyshelezhashhimi tkanjami. Obluchenie golovy u sobak pri nejtronnom potoke 1.4 x 10{sup 14}/cm{sup 2} privodit k jepiljacii, jeriteme i vlazhnoj deskvamacii s soputstvujushhim ugneteniem krovotvorenija. Odnako v techenie 25-30 dnej na''ljudaetsja vosstanovlenie dejatel'nosti kostnogo mozga i izlechenie kozhnyh porazhenij. Pri nejtronnom obluchenii zhivotnyh 5 x 10{sup 13} n/cm{sup 2} cherez 30 minut posle vnutrivennogo vvedenija 35 mg/kg bora-10 u zhivotnyh nabljudaetsja nekroticheskij jepidermit, otek kozhi golovy i kon{sup j}unktivit. B mozgu obnaruzhivajutsja kapiljarnye krovoizlijanija i staz s povrezhdeniem nejtronov i astrocitov i narusheniem jendotileja kapilljarov. Znachitel'no umen'shaetsja chislo trombocitov, kotoroe usugubljaet mestnye izmenenija. Zhivotnye pogibajut ot krovotechenij i/ili mozgovyh narushenij na 5 -8-j den' posle obluchenija. Jeti jeffekty svjazyvajut kak s gamma- tak i s al'fa-oblucheniem, voznikajushhim pri zahvate nejtronov borom (B{sup 10}(n, {alpha}) Li{sup 7}). Obluchenie kozhi svinej pri 5 x 10{sup 12} n/cm{sup 2} ne privodit k gistologicheskim izmenenijam. Pri obluchenii kozhi posle vnutrivennogo vvedenija 35 mg/kg bora-10 pri takoj zhe moshhnosti nejtronnogo potoka razvivaetsja klassicheskij radio-jepidermit, izlechivajushhijsja cherez36 -40 dnej

  9. POGODBENA IN IZVENPOGODBENA RAZMERJA MSP-JEV PRI MEDNARODNIH POSLIH

    OpenAIRE

    Vindiš, Jure

    2011-01-01

    Problem, katerega si bomo postavili v ospredje, je, kako so urejena pogodbena razmerja pri mednarodnih poslih malih in srednje velikih podjetij. Skušali bomo ugotoviti, v kolikšni meri so pogodbe pri poslovanju doma in mednarodni menjavi determinirane, in kateri so mehanizmi, s katerimi se podjetja zavarujejo, da se pogodbeni partner drži pogodbe. Osnovo za raziskovalna izhodišča bomo jemali iz študije iz leta 1963 z naslovom Preliminarna študija izvenpogodbenih razmerij v pos...

  10. Levkemija pri otroku in problemi prehranjevanja in pitja

    OpenAIRE

    Šinkovec, Sara

    2017-01-01

    Uvod: Podhranjenost in kaheksija sta pogosta pri otrocih z levkemijo in sta pokazatelja slabše prognoze. Slabo prehransko stanje otroka je povezano z večjim številom stranskih učinkov zdravljenja, s slabšim odzivom na zdravljenje in krajšim preživetjem. Funkcionalno stanje otrok in kakovost njihovega življenja sta slabša. Namen: Namen diplomskega dela je opisati problem prehranjevanja in pitja pri otroku z levkemijo. Metode dela: V diplomskem delu je uporabljena deskriptivna metoda dela s kr...

  11. PRiFi Networking for Tracking-Resistant Mobile Computing

    Science.gov (United States)

    2017-11-01

    conjunction with other relevant services, including Tor for tracking-resistant inter-organizational communication, distributed protocols for the...is a hardened, fully deployable PriFi implementation that can be used in conjunction with other relevant services, including Tor for tracking

  12. Canopy Level Chlorophyll Fluorescence and the PRI in a Cornfield

    Science.gov (United States)

    Middleton, Elizabeth M.; Cheng, Yen-Ben; Corp, Lawrence A.; Campbell, Petya K. E.; Huemmrich, K. Fred; Zhang, Qingyuan; Kustas, William P.

    2012-01-01

    Two bio-indicators, the Photochemical Reflectance Index (PRI) and solar-induced red and far-red Chlorophyll Fluorescence (SIF), were derived from directional hyperspectral observations and studied in a cornfield on two contrasting days in the growing season. Both red and far-red SIF exhibited higher values on the day when the canopy in the early senescent stage, but only the far-red SIF showed sensitivity to viewing geometry. Consequently, the red/far-red SIF ratio varied greatly among azimuth positions while the largest values were obtained for the "hotspot" at both growth stages. This ratio was lower (approx.0.88 +/- 0.4) in early July than in August when the ratio approached equivalence (near approx.1). In concert, the PRI exhibited stronger responses to both zenith and azimuth angles and different values on the two growth stages. The potential of using these indices to monitor photosynthetic activities needs further investigation

  13. Sistem DACUM pri sestavljanju strokovnih izobraževalnih programov

    Directory of Open Access Journals (Sweden)

    Jindra Kulich

    1996-12-01

    Full Text Available DACUM je razmeroma nov sistem logično razvrščenih postopnih korakov, ki jih je mogoče uporabiti za večjo učinkovitost pri strokovnem izobraževanju delavcev. Sistem DACUM je sestavljen iz petih zaporednih korakov. Prva dva obsegala analizo delovnih nalog in določanje storilnostnih ciljev. Pri naslednjih treh korakih mentor določi izpeljavo izobraževanja, izbira postopek vrednotenja, učne metode in izobraževalna sredstva. Izobraževalni program sestavljajo sploš­ ne naloge, delne naloge in posamezne naloge. Glede na te tri ravni je kot primer razčlenjeno usposabljanje natakarja.

  14. PSIHOLOŠKI VIDIKI BARV PRI IZDELAVI LOGOTIPA

    OpenAIRE

    Bauman, Anja

    2015-01-01

    Osrednja tema diplomske naloge so psihološki vidiki barv pri izdelavi logotipa. Diplomska naloga zajema tako teoretični kot tudi empirični del. V teoretičnem delu je predstavljen logotip in njegovi kriteriji uspešnosti. Prav tako pa so predstavljene tudi barve, njeni učinki ter značilnosti. Empirični del diplomske naloge pa se ukvarja z analizo obstoječih in izdelanih logotipov.

  15. Donava in Sava pri Strabonu in v napisih

    Directory of Open Access Journals (Sweden)

    Marjeta Šašel Kos

    2010-12-01

    Full Text Available V članku so zbrana in komentirana tista mesta v Strabonovi 7. knjigi, kjer piše o Donavi in Savi. Že Herodot je Donavo opredelil kot najpomembnejšo njemu znano reko; pri grških piscih se je zanjo uveljavilo tračansko ime Istros, ki se je tudi pozneje uporabljalo za spodnji tok Donave. Zgornji tok se je imenoval Danuvius/Danubius, ime je verjetno keltsko. Kot božanstvu so Danuviju postavljali oltarje; blizu sotočja Drave in Donave so skupaj z njim počastili tudi boga Drava. Savo je poosebljal bog Savus, ki so ga častili ob zgornjem, nevarnejšem toku reke do Siscije. Skupaj z Adsaluto sta imela svetišče nad brzicami pri Podkraju nasproti Hrastnika, blizu območja nevarnih slapov. Strabon poleg drugih rek dvakrat omenja sicer neznani Noar, ki so ga enačili s celo vrsto rek, med drugim tudi z Odro, vendar je natančna analiza Strabonovega besedila pokazala, da gre lahko le za spodnji tok Save. Izviri Save Dolinke v Zelencih pri Podkorenu so bili sveti kraj, kjer so častili Saverkno.

  16. Survey of Pulsed Neutron Source Methods for Multiplying Media; Methodes des Neutrons Pulses Pour l'Etude des Milieux Multiplicateurs; Obzor metodov s ispol'zovaniem istochnikov impul'snykh nejtronov dlya razmnozhayushchej sredy; Estudio Panoramico de los Metodos de Empleo de Fuentes de Neutrons Pulsados en Medios Multiplicadores

    Energy Technology Data Exchange (ETDEWEB)

    Garelis, E. [General Electric Company, Vallecitos Atomic Laboratory, Pleasanton, CA (United States)

    1965-10-15

    tratamiento del modo fundamental teniendo en cuenta la base teorica de las tecnicas de empleo de fuentes de neutrones pulsados que se han perfeccionado para el modelo (kO/E). Se exponen las repercusiones de la teoria de la fuente de neutrones pulsados en lo que se refiere a la obtencion de valores exactos de la constante de decrecimiento y de datos adecuados para el analisis de los sistemas pulsados. Tambien se examina la labor experimental realizada y se ponen de manifiesto tanto las ventajas como las limitaciones de la tecnica (k{beta}/ Script-Small-L ). El autor estudia tambien los metodos seudoaleatorios de respuesta a los impulsos, que utilizan una correlacion entre los datos de entrada y los de salida para determinar la funcion de Green de un conjunto multiplicador, y pone de manifiesto que la informacion obtenida con el metodo seudoaleatorio es identica a la conseguida por el metodo de la pulsacion reiterada. Por consiguiente, los metodos desarrollados para la tecnica de la pulsacion reiterada se pueden aplicar a la tecnica seudoaleatoria. (author) [Russian] V poslednie gody sushhestvovali dva napravlenija v oblasti jeffektivnyh sposobov poluchenija izmerenii ostatochnoj reaktivnosti s ispol'zovaniem ge- neratorov impul'snyhnejtronov: 1) obychnye izmerenija s istochnikom impul'snyh nejtronov pri nepreryvnom pul'sirujushhem istochnike i 2) metody, osnovannye na psevdosluchajnom otvete impul'sa s ispol'zovaniem sootnoshenija mezhdu vhodom i vyhodom. V oboih sluchajah po- luchaemaja informacija identichna, t.e. oba napravlenija ideal'no sluzhat opredeleniju otvetnoj funkcii. Razrabotka metodov s istochnikom impul'snyh nejtronov na teplovyh sistemah v celjah izmerenija reaktivnosti proslezhivaetsja ot pervonachal'nyh popytok Sjoestrand do nedavnego metoda (k{beta}/ Script-Small-L ). Pri obychnom metode s istochnikom impul'snyh nejtronov funkcija podkriti- cheskoj sborki Grina, otvet reaktora na del'ta-funkciju istochnika nejtronov, predstavljaet soboj poisk svojstv

  17. Experimental Study of the Process of Neutron Thermalization in Time in Aqueous Moderators; Etude Experimentale du Processus de Thermalisation des Neutrons en Fonction du Temps dans les Ralentisseurs Contenant de l'Eau; Ehksperimental'noe izuchenie protsessa termalizatsii nejtronov vo vremeni v vodorodosoderzhashchikh zamedlitelyakh; Estudio Experimental del Proceso de Termalizacion de Neutrones en Funcion del Tiempo en Moderadores Acuosos

    Energy Technology Data Exchange (ETDEWEB)

    Ishmaev, S. N.; Mostovoj, V. I.; Sadikov, I. P.; Chernyshov, A. A. [Gosudarstvennyj Komitet po Ispol' zovaniju Atomnoj Ehnergii SSSR, Institut Atomnoj Ehnergii Im. I.V.Kurchatova, Moskva, SSSR (Russian Federation)

    1965-08-15

    ambiente, con un poder de resolucion de 3,5 {mu}s. Los espectros medidos en un prisma de ZrH de gran tamano (B{sup 2} = 3,8 * 10{sup -2} cm{sup 2}) pertenecen a un intervalo de tiempos de moderacion (t > 30 {mu}s) en el cual la energia media de los neutrones es inferior a 0,13 eV y el intercambio de energia entre el gas neutronico y el medio se debe fundamentalmente a la excitacion de vibraciones acusticas en el reticulado. Dentro de este intervalo, la termaiizacion se desarrolla a un ritmo comparativamente lento y el tiempo necesario para obtener un espectro neutronico de equilibrio es del orden de 400 {mu}s. En montajes de ZrH de pequenas dimensiones (B{sup 2} Asymptotically-Equal-To 20 * 10{sup -2} cm{sup -2}) se observa un marcado efecto de enfriamiento por difusion. Los espectros medidos para tiempos de moderacion prolongados difieren considerablemente de la distribucion maxwelliana correspondiente a la temperatura ambiente. El tiempo necesario para lograr una distribucion energetica de equilibrio aumenta a medida que disminuyen las dimensiones del sistema. Los autores presentan espectros energeticos de neutrones en agua (B{sup 2} = 2,56 * 10{sup -2} cm{sup -2}) para tiempos de moderacion superiores a 13 {mu}s donde las deformaciones debidas a la resolucion son insignificantes. La forma del espectro solo concuerda con la distribucion maxwelliana a temperatura ambiente, al cabo de unos 100 {mu}s despues de emitida una rafaga de neutrones rapidos. El tiempo necesario para que el espectro de neutrones alcance el equilibrio es, en este experimento, tres a cuatro veces mas prolongado que los valores calculados por diversos autores. En la memoria se analizan los posibles motivos de esta discrepancia. (author) [Russian] S pomoshh'ju metodiki, opisannoj v drugom doklade avtorov na dannuju konferenciju, izmereny nestacionarnye spektry nejtronov v gidride cirkonija i vode pri komnatnoj temperature s razresheniem 3,5 mksek po vremeni zamedlenija. Spektry, izmerennye v prizme iz

  18. SODOBNE REŠITVE PRI UPORABI NAKUPOVALNIH VREČK

    OpenAIRE

    Zupanc, Simona

    2016-01-01

    Diplomska naloga opisuje velik problem sodobne družbe - prenasičenost z odpadnimi plastičnimi vrečkami, ki zelo obremenjujejo okolje in potrebujejo izjemno veliko časa za razgradnjo. Naloga se ukvarja tudi z možnimi alternativnimi rešitvami za to pereče vprašanje. V prvem poglavju je predstavljena problematika plastične embalaže. Pri tem smo se predvsem osredotočili na problem plastičnih vrečk HDPE (polietilen visoke gostote- vrečke, katere se uporabljajo za sadje, zelenjavo in mesne izde...

  19. POMEN MEDNARODNE OBDAVČITVE PRI POSAMZNIH VRSTAH DOHODKOV

    OpenAIRE

    Lipovčić, Dijana

    2013-01-01

    Med dohodke iz kapitala spadajo obresti, dividende in dobiček iz kapitala. Države svoje rezidente obdavčujejo po načelu svetovnega dohodka, nerezidente pa glede na vir dohodka. Problem pri mednarodni obdavčitvi je možnost dvojnega obdavčevanja, saj je lahko davčni zavezanec obdavčen v tujini, kjer je dohodek dosegel, in tudi v državi rezidentstva. Države zato sklepajo sporazume o izogibanju dvojnega obdavčevanja. V diplomskem seminarju smo primerjali obdavčitev dohodkov iz kapitala v Slo...

  20. PREPOZNAVNOST PLESNEGA LJUDSKEGA IZROČILA PRI OSNOVNOŠOLCIH

    OpenAIRE

    Žižek, Tamara

    2016-01-01

    Diplomsko delo z naslovom Prepoznavnost plesnega ljudskega izročila pri osnovnošolcih sestavljata teoretični in empirični del. V teoretičnem delu smo predstavili ples na splošno ter ljudski ples, osredotočili smo se bolj podrobno na en slovenski ljudski ples, ki se imenuje štajeriš. Predstavili smo tudi poučevanje ljudskih plesov, kaj je pomembno za vodenje folklorne skupine, opisali oblačila, ki se imenujejo narodne noše, ter na kratko predstavili nekaj izbranih šeg in navad naših prednikov...

  1. Three causes of variation in the photochemical reflectance index (PRI) in evergreen conifers.

    Science.gov (United States)

    Wong, Christopher Y S; Gamon, John A

    2015-04-01

    The photochemical reflectance index (PRI) reflects diurnal xanthophyll cycle activity and is also influenced by seasonally changing carotenoid : Chl pigment ratios. Both changing pigment pools and xanthophyll cycle activity contribute to photoprotection in evergreen conifers exposed to boreal winters, but they operate over different timescales, and their relative contribution to the PRI signal has often been unclear. To clarify these responses and their contribution to the PRI signal, leaf PRI, pigment composition, temperature and irradiance were monitored over 2 yr for two evergreen conifers (Pinus contorta and Pinus ponderosa) in a boreal climate. PRI was affected by three distinct processes operating over different timescales and exhibiting contrasting spectral responses. Over the 2 yr study period, the greatest change in PRI resulted from seasonally changing carotenoid : Chl pigment ratios, followed by a previously unreported shifting leaf albedo during periods of deep cold. Remarkably, the smallest change was attributable to the xanthophyll cycle. To properly distinguish these three effects, interpretation of PRI must consider temporal context, physiological responses to evolving environmental conditions, and spectral response. Consideration of the separate mechanisms affecting PRI over different timescales could greatly improve efforts to monitor changing photosynthetic activity using optical remote sensing. © 2014 The Authors New Phytologist © 2014 New Phytologist Trust.

  2. 'Mastspuit met sensoren brengt middel effectiever aan' (onderzoek praktijkproeven PRI en PPO)

    NARCIS (Netherlands)

    Engels, A.; PPO BBF Boomkwekerij,; PRI,; Nieuwenhuizen, A.T.

    2011-01-01

    In mei 2011 starten Plant Research International (PRI), PPO Boomkwekerij en Damcon de eerste praktijkproeven met sensoren op de mastspuit. Dit prototype spuit alleen als het bladeren detecteert. Projectleider Ard Nieuwenhuizen van PRI is ervan overtuigd dat kwekers met zo'n type spuit middelen

  3. Draft Genome Sequence of the Antagonistic Rhizosphere Bacterium Serratia plymuthica Strain PRI-2C

    NARCIS (Netherlands)

    Garbeva, P.; van Elsas, J.D.; de Boer, W.

    Serratia plymuthica strain PRI-2C is a rhizosphere bacterial strain with antagonistic activity against different plant pathogens. Here we present the 5.39-Mb (G+C content, 55.67%) draft genome sequence of S. plymuthica strain PRI-2C with the aim of providing insight into the genomic basis of its

  4. Correcting the relationship between PRI and shadow fraction for the blue sky effect

    Science.gov (United States)

    Mõttus, Matti

    2016-04-01

    The Photochemical Reflectance Index (PRI) is defined as the normalized difference ratio of leaf reflectance at two specific wavelengths in the green spectral region. Its value depends on the status of leaf carotenoid content, and especially that of the xanthophyll cycle pigments. Due to the dependence on the xanthophyll cycle, when the photosynthetic apparatus of green leaves is close to the saturation limit, their PRI becomes dependent on light conditions. Therefore, by measuring the PRI of leaves in the same canopy under different local irradiance conditions on a sunny day, it should be possible to determine the saturation level of the leaves. In turn, this gives information on the light use efficiency (LUE) of the vegetation canopy. The average light conditions of visible foliage elements are often quantified with the shadow fraction -- the fraction of visible foliage not lit by direct sunlight. The dependence of PRI on the shadow fraction has been used to remotely measure canopy LUE on clear days. Variations in shadow fraction have been achieved with multiangular measurement. However, besides photosynthetic downregulation, the dependence of canopy PRI on shadow fraction is affected by the blue sky radiation caused by scattering in the atmosphere. To quantify this effect on remotely sensed PRI, we present the underlying definitions relating leaf and canopy PRI and perform the required calculations for typical midsummer conditions in Central Finland. We demonstrate that the effect of blue sky radiation on the variation of PRI with canopy shadow fraction is similar in shape and magnitude to that of LUE variations reported in literature. Next, we propose a new method to assess these PRI variations in structured vegetation. We investiagate this blue sky effect on the PRI -- shadow fraction relationship with high spatial (60 cm) and spectral (9.8 nm) resolution airborne imaging spectroscopy data from Hyytiälä, Finland. We evaluate the spectral irradiance in

  5. Prednosti metode Montessori pri obravnavi oseb z demenco

    Directory of Open Access Journals (Sweden)

    Andreja Ljubič

    2017-03-01

    Full Text Available Uvod: Demenca je kronično obolenje s tendenco upadanja kognitivnih sposobnosti obolelega. Uporaba metod za obvladovanje in trening osnovnih življenjskih aktivnosti, ki omogočajo daljše obdobje samostojnega življenja pacienta z demenco, je v tujini uveljavljena z različnimi novejšimi koomplementarnimi pristopi. Ena izmed uveljavljenih metod je pristop Marie Montessori, prilagojen odraslim pacientom z demenco. V članku je predstavljena metoda montessori pri obravnavi pacienta z demenco in njeni učinki na kakovost življenja pacienta z demenco. Metode: Uporabljena je bila deskriptivna raziskovalna metodologija s pregledom domače in tuje literature. Za prikaz pregleda petih preko spleta dostopnih podatkovnih baz in odločanja o uporabnosti pregledanih virov je bila uporabljena metoda PRISMA. V končni pregled literature je bilo ključenih 19 člankov, objavljenih do maja 2016. Za obdelavo podatkov je bil uporabljen model analize konceptov. Večina zajetih raziskav je bila izvedena v Združenih državah Amerike. Rezultati: Po pregledu raziskav so bila identificirana tri tematska področja: (1 vpliv metode montessori na sodelovanje in prizadevanje, (2 vpliv metode montessori na vedenje, povezano s hranjenjem, in (3 vpliv metode montessori na širšo skupino kognitivnih sposobnosti. Diskusija in zaključek: Kljub majhnemu številu člankov, ki opisujejo uporabo metode montessori pri obravnavi pacientov z demenco, metodo lahko predstavimo kot učinkovito. Avtorji raziskav ugotavljajo, da pristop ne le omogoča ohranjanje kognitivnih sposobnosti, temveč le-te celo izboljšuje.

  6. Diffusion Parameters of BeO by the Pulsed Neutron Method; Calcul des Parametres de Diffusion de BeO par la Methode des Neutrons Pulses; Opredelenie diffuzionnykh parametrov BeO s pomoshch'yu metoda impul'snykh nejtronov; Determinacion de los Parametros de Difusion en el BeO por el Metodo de los Neutrones Pulsados

    Energy Technology Data Exchange (ETDEWEB)

    Joshi, B. V.; Nargundkar, V. R.; Subbarao, K. [Atomic Energy Establishment Trombay, Bombay (India)

    1965-08-15

    la constante de decrecimiento, fue posible tener en cuenta toda actividad de fondo constante. Para evitar armonicos temporales se prescindio de los laplacianos de valor muy elevado. Se elimino el efecto de todo contenido armonico remanente mediante el empleo de un retardo adecuado. Se determino, para varios laplacianos, la constante de decrecimiento del modo fundamental de la poblacion de neutrones termicos. Los autores examinan las condiciones que han de satisfacerse para determinar con precision la constante C de enfriamiento por difusion. Los valores obtenidos para el BeO fueron los siguientes: {lambda}{sub 0} = constante de absorcion = 156, 02 {+-} 4,37 s{sup -1}, D = coeficiente de difusion = (1,3334 {+-} 0,0128) * 10{sup 5} cm{sup 2}/s, C = constante de enfriamiento por difusion = (-4,8758 {+-} 0,5846) * 10{sup 5} cm{sup 4}/s. Los autores calcularon el efecto de despreciar la influencia del termino B{sup 6} sobre la determinacion de los parametros de difusion, demostrando que es considerable. Atribuyen a ese efecto la persistente discrepancia entre los valores de C obtenido para el mismo moderador por distintos investigadores. (author) [Russian] Opisyvaetsja primenenie metoda impul'snyh nejtronov dlja toch- nogo opredelenija diffuzionnyh parametrov zamedlitelej. S pomoshh'ju jetogo metoda byli polucheny diffuzionnye parametry VeO. Impul'sy nejtronov poluchalis' s pomoshh'ju kas- kadnogo uskoritelja v rezul'tate pul'sirovanija istochnika ionov i ispol'zovanija reakcii Be (d, n). Detektorom sluzhil proporcional'nyj schetchik iz obogashhennogo grehftoristogo bora. Pokazano, chto pri pravil'nom vybore polozhenija i dliny schetchika, a takzhe polozhenija istochnika, mozhno ustranit' bol'shuju chast' prostranstvennyh garmonik. Ljuboj postojannyj fon mozhet byt' uchten pri raschete postojannoj raspada. Chtoby izbezhat' vremennyh garmo- nik, ochen' bol'shie laplasiany ne ispol'zovalis'. Vse ostavshiesja garmoniki byli svedeny na net blagodarja ispol'zovaniju pravil

  7. Pomen zdrave prehrane in telesne aktivnosti pri osnovnošolcih

    OpenAIRE

    Smole, Valentina

    2014-01-01

    V diplomskem delu Pomen zdrave prehrane in telesne aktivnosti pri osnovnošolcih so predstavljene smernice zdravega prehranjevanja pri otrocih, pomen zdrave prehrane in redne telesne aktivnosti za zdravje osnovnošolskih otrok ter vloga medicinske sestre pri promociji zdrave prehrane in telesne aktivnosti. V empiričnem delu so predstavljeni rezultati raziskave, ki smo jo izvedli med otroci osmega in devetega razreda osnovne šole. Namen raziskave je bil ugotoviti, kakšen je odnos osnovnošolcev d...

  8. Uporaba kreativnih medijev pri delu z mladimi v družbi tveganja

    OpenAIRE

    Zaner, Tamara

    2017-01-01

    Kot socialni pedagogi in pedagoginje se pri svojem delu nenehno srečujemo z mladimi. Ti se v sodobni družbi, srečujejo z negotovostjo, dvomi in posledično tudi stiskami, ki segajo v vse dimenzije njihovega življenja. Pri svojem delu sem temeljila na Beckovem pojmovanju današnje družbe, pri razumevanju položaja mladih pa izhajala iz koncepta življenjske usmerjenosti, socialnega pedagoga Hansa Thierscha. Namen raziskovalnega dela je preveriti, kako s pomočjo kreativnih medijev prispevati k opol...

  9. A gaseous scintillation counter filled with He{sup 3} for neutron spectrometry; Compteur a scintillateur gazeux rempli de {sup 3}He pour la spectrometrie des flux de neutrons; Gazovyj stsintillyatsionnyj schetchik napolnennyj He{sup 3} dlya spektrometrii potokov nejtronov; Contador de centelleador gaseoso cargado con helio-3 para la espectrometria neutronica

    Energy Technology Data Exchange (ETDEWEB)

    Baldin, S A; Matveev, V V

    1962-04-15

    gaseoso, y se exponen los resultados de experimentos sobre el registro y la espectrometria de flujos neutronicos realizados mediante ese contador cargado con una mezcla de-10 por ciento de xenon y 9 por ciento de helio-3 a una presion de 20 atm. abs. Se proporcionan datos sobre la construccion del aparato de suministro que asegura el funcionamiento ininterrumpido del contador durante largo tiempo, proporciona las mezclas de gases necesarias a una presion de 60 atmosferas y permite proceder a una purificacion continua del gas. Se examinan, ademas, los resultados del estudio del poder de resolucion energetica y la linealidad del contador en funcion de la energia, su rendimiento con intensidades en campos gamma de hasta 3 roentgens/h, y algunas cuestiones relacionadas con la posibilidad de ampliar el intervalo energetico en el que pueden aplicarse los contadores de centelleador gaseoso cargados con helio-3. (author) [Russian] V doklade opisyvaetsya gazovyj agregat, gazovyj stsintillyatsionnyj schetchik, a takzhe rezul'taty ehksperimentov po registratsii i spektrometrii potokov nejtronov pri pomoshchi gazovogo stsintillyatsionnogo schetchika, napolnennogo smes'yu 10% ksenona i 90% geliya-3, pri obshchem davlenii 20 ata. Privodyatsya dannye ob ustrojstve gazovogo agregata, obespechivayushchego nepreryvnuyu rabotu schetchika v techenie dlitel'nogo vremeni, poluchenie neobkhodimykh smesej gazov s obshchim davleniem do 60 atm, i postoyannuyu ochistku gaza ot zagryaznenij. Krome togo v doklade obsuzhdayutsya rezul'taty issledovaniya ehnergeticheskogo razresheniya i linejnosti schetchika po ehnergii, ego rabotosposobnost' v gamma-polyakh moshchnost'yu do 3 r/chas, a takzhe voprosy, svyazannye s vozmozhnost'yu rasshireniya ehnergeticheskogo diapazona raboty gazovykh stsintillyatsionnykh schetchikov, napolnennykh geliem-3. (author)

  10. Structural and functional characterization of the CAP domain of pathogen-related yeast 1 (Pry1) protein

    Science.gov (United States)

    Darwiche, Rabih; Kelleher, Alan; Hudspeth, Elissa M.; Schneiter, Roger; Asojo, Oluwatoyin A.

    2016-06-01

    The production, crystal structure, and functional characterization of the C-terminal cysteine-rich secretory protein/antigen 5/pathogenesis related-1 (CAP) domain of pathogen-related yeast protein-1 (Pry1) from Saccharomyces cerevisiae is presented. The CAP domain of Pry1 (Pry1CAP) is functional in vivo as its expression restores cholesterol export to yeast mutants lacking endogenous Pry1 and Pry2. Recombinant Pry1CAP forms dimers in solution, is sufficient for in vitro cholesterol binding, and has comparable binding properties as full-length Pry1. Two crystal structures of Pry1CAP are reported, one with Mg2+ coordinated to the conserved CAP tetrad (His208, Glu215, Glu233 and His250) in spacegroup I41 and the other without divalent cations in spacegroup P6122. The latter structure contains four 1,4-dioxane molecules from the crystallization solution, one of which sits in the cholesterol binding site. Both structures reveal that the divalent cation and cholesterol binding sites are connected upon dimerization, providing a structural basis for the observed Mg2+-dependent sterol binding by Pry1.

  11. Spectral Similarity and PRI Variations for a Boreal Forest Stand Using Multi-angular Airborne Imagery

    Directory of Open Access Journals (Sweden)

    Vincent Markiet

    2017-09-01

    Full Text Available The photochemical reflectance index (PRI is a proxy for light use efficiency (LUE, and is used in remote sensing to measure plant stress and photosynthetic downregulation in plant canopies. It is known to depend on local light conditions within a canopy indicating non-photosynthetic quenching of incident radiation. Additionally, when measured from a distance, canopy PRI depends on shadow fraction—the fraction of shaded foliage in the instantaneous field of view of the sensor—due to observation geometry. Our aim is to quantify the extent to which sunlit fraction alone can describe variations in PRI so that it would be possible to correct for its variation and identify other possible factors affecting the PRI–sunlit fraction relationship. We used a high spatial and spectral resolution Aisa Eagle airborne imaging spectrometer above a boreal Scots pine site in Finland (Hyytiälä forest research station, 61°50′N, 24°17′E, with the sensor looking in nadir and tilted (off-nadir directions. The spectral resolution of the data was 4.6 nm, and the spatial resolution was 0.6 m. We compared the PRI for three different scatter angles ( β = 19 ° , 55 ° and 76 °, defined as the angle between sensor and solar directions at the forest stand level, and observed a small (0.006 but statistically significant (p < 0.01 difference in stand PRI. We found that stand mean PRI was not a direct function of sunlit fraction. However, for each scatter angle separately, we found a clear non-linear relationship between PRI and sunlit fraction. The relationship was systematic and had a similar shape for all of the scatter angles. As the PRI–sunlit fraction curves for the different scatter angles were shifted with respect to each other, no universal curve could be found causing the observed independence of canopy PRI from the average sunlit fraction of each view direction. We found the shifts of the curves to be related to a leaf structural effect on canopy

  12. Diurnal and Directional Responses of Chlorophyll Fluorescence and the PRI in a Cornfield

    Science.gov (United States)

    Middleton, Elizabeth; Cheng, Y. B.; Corp, L.; Campbell, P.; Kustas, W.

    2010-01-01

    Determining the health and vigor of vegetation using high spectral resolution remote sensing is an important goal which has application to monitoring agriculture and ecosystem productivity and carbon exchange. Two spectral indices used to assess whether vegetation is performing near-optimally or exhibiting symptoms of environmental stress (e.g., drought or nutrient deficiency, non-optimal temperatures, etc.) are the Photochemical Reflectance Index (PRI) and solar-induced red and far-red Chlorophyll Fluorescence (Fs). Both the PRI and Fs capture the dynamics of photoprotection mechanisms within green foliage: the PRI is based on the association of the reflected radiation in the green spectrum with the xanthophyll cycle, whereas Fs measures the emitted radiation in the red and far-red spectrum. Fs was determined from retrievals in the atmospheric oxygen absorption features centered at 688 and 760 nm using a modified Fraunhofer Line Depth (FLD) method. We previously demonstrated diurnal and seasonal PRI differences for sunlit vs. shaded foliage in a conifer forest canopy, as expressed in the hotspot and darkspot of the Bidirectional Reflectance Function (BRF). In a USDA-ARS experimental field site located in Beltsville, MD, USA, measurements were acquired over a corn crop from a nadir view in 2008 with an ASD FieldSpec Pro (Analytical Spectral Devices, Inc., Boulder, CO, USA) to study the behavior of the PRI for sunlit and shaded foliage as captured in reflectance variations associated with the BRF, in a I m tall canopy in the vegetative growth stage. Those observations were compared to simulations obtained from two radiative transfer models. Measurements were then acquired to examine whether the PRI and Fs were influenced by view zenith and azimuth geometries at different times of day. Those measurements were made in 2010 with the Ocean Optics USB4000 Miniature Fiber Optic Spectrometer (Ocean Optics Inc., Dunedin, Florida, USA) at several times during the day on

  13. Mass spectrometric investigation of neutral and charged constituents in saturated vapor over PrI3

    International Nuclear Information System (INIS)

    Motalov, V.B.; Vorobiev, D.E.; Kudin, L.S.; Markus, T.

    2009-01-01

    The Knudsen effusion mass spectrometric technique was used to study vapor species over praseodymium triiodide. The monomer, PrI 3 , and dimer, Pr 2 I 6 , molecules and the negative ions, PrI 4 - and Pr 2 I 7 - , were observed in saturated vapor in the temperature range from 856 K to 1048 K. The partial vapor pressures of neutral constituents were determined and the enthalpies of sublimation obtained using the second and the third laws of thermodynamics (Δ s H deg. (298.15 K) = 291 ± 4 kJ mol -1 for PrI 3 , and Δ s H deg. (298.15 K) = 400 ± 30 kJ mol -1 for Pr 2 I 6 ). The equilibrium constants for various ion molecular reactions were measured and the enthalpies of reactions obtained. The enthalpies of formation, Δ f H deg. (298.15 K) kJ mol -1 , of gaseous molecules and ions were calculated and are as follows: -374 ± 6 (PrI 3 ), -929 ± 30 (Pr 2 I 6 ), -867 ± 30 (PrI 4 - ), -1432 ± 50 (Pr 2 I 7 - )

  14. Thermal Neutron Spectral and Spatial Distributions in Light-Water-Moderated Uranium Lattices; Distributions Spectrale et Spatiale des Neutrons Thermiques dans des Reseaux a Uranium et a Eau Leger; Spektral'noe i prostranstvennoe raspredelenie teplovykh nejtronov v uranovykh reshetkakh s vodnym zamedlitelem; Distribuciones Espectral y Espacial de los Neutrones Termicos en los Reticulados de Uranio Moderados por Agua Ligera

    Energy Technology Data Exchange (ETDEWEB)

    Hardy, J.; Volpe, J. J.; Klein, D.; Schmidt, E.; Gelbard, E. [Bettis Atomic Power Laboratory, Pittsburgh, PA (United States)

    1964-02-15

    razlichnymi priblizhenijami k teorii perenosa i integral'nomu jadru rassejanija terlovyh nejtronov. Pervaja serija opytov zakljuchaetsja v izmerenii blok-jeffektov teplovyh nejtronov v raz- nyh jachejkah reshetki sborki TRH, reaktora s vodnym zamedlitelem na slegka obogashhennom urane s cilindricheskimi toplivnymi jelementami, raspolozhennymi po geksagonal'noj sisteme. Sravnivalis' dannye ob ispol'zovanii teplovyh nejtronov s dannymi, poluchennymi v Monte Karlo. Primenjalis' funkcii Radkovskogo i Nelkina. Funkcija vlijanija Radkovskogo daet priblizhenie pervogo porjadka, shiroko ispol'zuemoe pri proektirovanii reaktorov. Funk- cija vlijanija Nelkina predstavljaet soboj bolee novoe i bolee podrobnoe opisanie integral'- nogo jadra rassejanija. Poskol'ku raschetnye znachenija pogloshhenija teplovyh nejtronov zavisjat ot vybora in- tegral'nogo jadra rassejanija, v osobennosti esli jeto ne maksvellovskij spektr potokov nej- tronov, drugaja serija opytov po izmereniju aktivacii na sborke TRH prednaznachalas' dlja bolee neposredstvennogo opredelenija integral'nogo jadra rassejanija. Opyty provodilis' v uslovijah, pri kotoryh iskazhenie spektra v osnovnom vyzyvalos' ravnomernym otravleniem. Izmerenija provodilis' v zapolnennoj vodoj trubke diametrom 10sm v reshetke TRX. Stenka trubki byla napolnena poroshkom B{sup 10}, jeffektivno razryvaja svjaz' mezhdu vnutrennej poverh- nost'ju trubki i reshetkoj reaktora pri jenergii nizhe 10 kjev. Otnositel'nye znachenija aktivacii teplovymi nejtronami i radial'nye konfiguracii chuvstvitel'nyh v otnoshenii spektrov detektorov izmerjalis' v dvuh sluchajah s polucheniem sootvetstvenno pochti maksvellovskogo spektra (dlja chistoj vody) i spektra, sil'no iskazhen- nogo v rezul'tate otravlenija kadmiem. Dlja jetogo opyta raschety s kazhdoj funkciej provodilis' v gruppe jenergii 12 s pribli- zheniem P{sub 3} . V rezul'tate rascheta sobstvennyh znachenij prostranstvennyh form, jeksponen- cial'no raspadajushhihsja v letargii, kotorye podderzhivajutsja v

  15. Transmutation doping and recoil effects in semiconductors exposed to thermal neutrons; Transmutations provoquees et effets de recul dans les semi-conducteurs exposes aux neutrons thermiques; Prisadka i sdacha v rezul'tate prevrashcheniya poluprovodnikov pod dejstviem teplovykh nejtronov; Impurificacion por transmutacion y efectos de retroceso en los semiconductores expuestos a neutrones termicos

    Energy Technology Data Exchange (ETDEWEB)

    Crawford, Jr, J H; Cleland, J W [Solid State Division, Oak Ridge National Laboratory, Oak Ridge, TN (United States)

    1962-01-15

    ({sup 71}Ga); una correcta eleccion de la exposicion permite por tanto disminuir la concentracion de electrones en el germanio de tipo n hasta valores muy bajos, o transformar el germanio de tipo n en germanio de tipo p. Afortunadamente, el periodo de semidesintegracion del nuclido que da origen al {sup 71}Ga es largo; ello permite observar en detalle el curso de la ''valoracion radiactiva'' por medicion del coeficiente de Hall y de la comductividad. Los experimentos demuestran tambien que los defectos que producen en la red cristalina los retrocesos de nucleos causados por la emision gamma consecutiva a la captura neutronica eliminan aproximadamente un electron por cada neutron capturado. El recocido a unos 450 Degree-Sign C hace que los atomos desplazados vuelvan a los sitios que les corresponden en la red cristalina. Tambien se han observado efectos del retroceso en el silicio; cada captura da lugar a la eliminacion de, aproximadamente, dos portadores de carga. Los autores analizaran las deducciones a que llevan estos resultados y los obtenidos con el germanio, basandose en los espectros de rayos gamma de captura. En el caso del antimoniuro de indio, los rayos gamma de captura emitidos por el {sup 115}In no bastan para desplazar un numero grande de nucleos, de modo que el efecto principal es la formacion de {sup 116}Sn, que es un donor cuando sustituye a un atomo de indio en una red cristalina de este elemento. La impurificacion por transmutacion nuclear ofrece una posibilidad de estudiar numerosos semiconductores compuestos en los que resulta dificil introducir impurezas por procomientos quimicos. (author) [Russian] Byli provedeny podrobnye issledovaniya vozdejstviya teplovykh nejtronov na germanij. Iz pyati izotopov tri izotopa prevrashchayutsya v khimicheskie primesi, vykhod kotorykh, v chisle atomov na 100 zakhvatov nejtronov, i ikh periody poluraspada predstavlyayutsya v sleduyushchem vide: Ga{sup 71} - 30,4, 11,4 dnya; As{sup 75} - 9,8, 82 min; Se{sup 77} - 1

  16. Physiological validation of photochemical reflectance index (PRI) as a photosynthetic parameter using Arabidopsis thaliana mutants.

    Science.gov (United States)

    Kohzuma, Kaori; Hikosaka, Kouki

    2018-03-25

    Non-photochemical quenching (NPQ) is the most important photoprotective system in higher plants. NPQ can be divided into several steps according to the timescale of relaxation of chlorophyll fluorescence after reaching a steady state (i.e., the fast phase, qE; middle phase, qZ or qT; and slow phase, qI). The dissipation of excess energy as heat during the xanthophyll cycle, a large component of NPQ, is detectable during the fast to middle phase (sec to min). Although thermal dissipation is primarily investigated using indirect methods such as chlorophyll a fluorescence measurements, such analyses require dark adaptation or the application of a saturating pulse during measurement, making it difficult to continuously monitor this process. Here, we designed an unconventional technique for real-time monitoring of changes in thylakoid lumen pH (as reflected by changes in xanthophyll pigment content) based on the photochemical reflectance index (PRI), which we estimated by measuring light-driven leaf reflectance at 531 nm. We analyzed two Arabidopsis thaliana mutants, npq1 (unable to convert violaxanthin to zeaxanthin due to inhibited violaxanthin de-epoxidase [VDE] activity) and npq4 (lacking PsbS protein), to uncover the regulator of the PRI. The PRI was variable in wild-type and npq4 plants, but not in npq1, indicating that the PRI is related to xanthophyll cycle-dependent thermal energy quenching (qZ) rather than the linear electron transport rate or NPQ. In situ lumen pH substitution using a pH-controlled buffer solution caused a shift in PRI. These results suggest that the PRI reflects only xanthophyll cycle conversion and is therefore a useful parameter for monitoring thylakoid lumen pH (reflecting VDE activity) in vivo. Copyright © 2018 The Authors. Published by Elsevier Inc. All rights reserved.

  17. PriFi - Using a Multiple Alignment of Related Sequences to Find Primers for  Amplification of Homologs

    DEFF Research Database (Denmark)

    Fredslund, Jakob; Schauser, Leif; Madsen, Lene Heegaard

    2005-01-01

    Using a comparative approach, the web program PriFi (http://cgi-www.daimi.au.dk/cgi-chili/PriFi/main) designs pairs of primers useful for PCR amplification of genomic DNA in species where prior sequence information is not available. The program works with an alignment of DNA sequences from phylog...

  18. Stres pri delu v nujni medicinski pomoči - prehospitalna enota

    OpenAIRE

    Ploder, Matej

    2013-01-01

    Izhodišča: V diplomskem delu smo se lotili vprašanja, kako stres vpliva na delo reševalcev v prehospitalni enoti nujne medicinske pomoči. Reševalci in zdravniki nujne medicinske pomoči se vsakodnevno srečujejo s situacijami, ki vplivajo na njihovo nadaljnjo delo, počutje in psihično stabilnost, predvsem pa na njihovo zdravje, od tragičnih nesreč, katerim so priča, do trenutkov, ko svojega poslanstva ne bi zamenjali za nič na svetu. Pri raziskavi smo ugotavljali, kaj reševalcem sploh predstavl...

  19. Analiza igre branilcev v conski obrambi 5:1 pri rokometu

    OpenAIRE

    Kozole, Rok

    2017-01-01

    V diplomski nalogi je predstavljena analiza igre branilcev v conski obrambi 5:1 pri rokometu. Obrambna formacija 5:1 je po obrambi 6:0 druga najpogosteje uporabljena obrambna formacija, katere se poslužujejo tako ekipe iz vrhunskega rokometa kot tudi ekipe, ki tekmujejo v ligah nižje kakovosti. V skladu s hitrim razvojem rokometne igre se je razvijala tudi obramba 5:1. Obrambna formacija 5:1 se pri mlajših rokometaših uporablja tudi kot prehodna obramba oz. temelj za prehod iz bolj globokih (...

  20. VPLIV LIKOVNE TEHNIKE NA IZBIRO BARV PRI PREDŠOLSKEM OTROKU

    OpenAIRE

    Marčec, Tamara

    2013-01-01

    Diplomsko delo z naslovom Vpliv likovne tehnike na izbiro barv pri predšolskem otroku je sestavljeno iz teoretičnega in praktičnega dela. V teoretičnem delu smo na kratko predstavili ustvarjalnost, njene faze in faktorje ter kako spodbujamo ali zaviramo ustvarjalnost pri predšolskem otroku. Nato smo nadaljevali in opisali vlogo in pomen barve za predšolskega otroka. Predstavili smo likovna področja in vsako na kratko opisali. Kasneje smo podrobneje opisali področje slikanja, kajti naše de...

  1. Regulation of pri-microRNA BIC transcription and processing in Burkitt lymphoma

    NARCIS (Netherlands)

    Kluiver, J.; van den Berg, Anke; de Jong, Doetje; Blokzijl, T.; Harms, G.; Bouwman, E.; Jacobs, Susan; Poppema, Sibrand; Kroesen, Bart-Jan

    2007-01-01

    BIC is a primary microRNA (pri-miR-155) that can be processed to mature miR-155. In this study, we show the crucial involvement of protein kinase C (PKC) and nuclear factor-kappa B (NF-kappa B) in the regulation of BIC expression upon B-cell receptor triggering. Surprisingly, Northern blot analysis

  2. PRI leidt rupsen om de tuin: effect van tussenteelt en combinatieteelt op rupsen op spruitkool

    NARCIS (Netherlands)

    Elderson, J.; Belder, den E.

    2002-01-01

    PRI onderzocht in spruitkool het effect van bloemstroken met bruine mosterd of klaver, ingezaaid om de zes rijen, op de aantallen rupsen en de samenstelling van de rupsenpopulatie gedurende het groeiseizoen. In het artikel ook een beschrijving en illustraties van de zes belangrijkste rupsensoorten

  3. The Measurement of Reactivity In Multiregion Subcritical Systems by the Pulsed Neutron Technique; Mesure de la Reactivite dans les Systemes Sous-Critiques a Plusieurs Regions par la Methode des Neutrons Pulses; Izmerenie reaktivnosti v mnogozonnykh podkriticheskikh sistemakh metodom impul'snykh nejtronov; Mediciones de la Reactividad en Sistemas Subcriticos de Varias Regiones Mediante la Tecnica de los Neutrones Pulsados

    Energy Technology Data Exchange (ETDEWEB)

    Sherwin, J.; Leng, J. H. [United Kingdom Atomic Energy Authority, Windscale Works, Cumberland (United Kingdom)

    1965-10-15

    se obtuvo en el reactor avanzado de Windscale, refigerado con gas, cuyo funcionamiento se interrumpio deliberadamente por un envenenamiento uniforme. En el segundo caso se hizo variar la reactividad del cuerpo del reactor 'HERO' de potencia nula modificando el radio de la zona cargada. Todas las mediciones de los impulsos ncuironicos concuerdan satisfactoriamente con las obtenidas por otros metodos mas clasicos de determinacion de la reactividad. Por ultimo, los autores examinan las tecnicas experimentales y las dificultades encontradas en los sistemas moderados con grafito. (author) [Russian] Mgnovennyj raspad termalizovannoj vspyshki nejtronov v mnogojeonnoj podkriticheskoj sisteme izuchalsja s pomoshh'ju dvuhgruppovoj teo- rii diffuzii. Pokazyvaetsja, chto mozhno ustanovit' svjaz' mezhdu postojannoj mgnovennogo raspada osnovnogo sostojanija i kojefficientom jeffektivnogo razmnozhenija sistemy v ramkah dvuh opredelennyh parametrov dlja celej publikuemogo doklada v kachestve kojefficienta chuvstvitel'nosti reaktora i popravki na mgnovennyj raspad, kotorye zavisjat v bol'shoj stepeni ot prostranstvennogo razmeshhenija potokov v sisteme. Pri odnorodnoj sisteme bez otrazhatelja kojefficient chuvstvitel'nosti mozhno ustanovit' pri opredelenii srednego perioda zhizni nejtrona v sisteme, dlja mnogozonnoj sistemy takoj kojefficient predstavljaet soboj sochetanie periodov zhizni v kazhdoj zone, uslozhnennyh in- tegralami vozmushhenija. Vtoroj parametr, popravka na raspad mozhet che imet' fizicheskogo smysla v svjazi s tem, chto ona pojavljaetsja pri popytke ustanovit' svjaz' mezhdu dvumja so- otvetstvujushhimi masshtabami reaktivnosti, to-est' masshtabom pri opredelenii kotorogo ispol'zuetsja postojannaja mgnovennogo raspada, i masshtabom, vyvodimym s ispol'zovaniem kojefficienta jeffektivnogo razmnozhenija. Izuchajutsja svojstva jetih parametrov s uporom na reaktor s obogashhennym uranom i grafitovym zamedlitelem, sostojashhij iz odnorodnoj aktivnoj zony i otrazhatelja, i

  4. Photosynthetic Efficiency of Northern Forest Ecosystems Using a MODIS-Derived Photochemical Reflectance Index (PRI)

    Science.gov (United States)

    Middleton, E. M.; Huemmrich, K. F.; Landis, D. R.; Black, T. A.; Barr, A. G.; McCaughey, J. H.

    2016-01-01

    This study evaluates a direct remote sensing approach from space for the determination of ecosystem photosynthetic light use efficiency (LUE), through measurement of vegetation reflectance changes expressed with the Photochemical Reflectance Index (PRI). The PRI is a normalized difference index based on spectral changes at a physiologically active wavelength (approximately 531 nanometers) as compared to a reference waveband, and is only available from a very few satellites. These include the two Moderate-Resolution Imaging Spectroradiometers (MODIS) on the Aqua and Terra satellites each of which have a narrow (10-nanometer) ocean band centered at 531 nanometers. We examined several PRI variations computed with candidate reference bands, since MODIS lacks the traditional 570-nanometer reference band. The PRI computed using MODIS land band 1 (620-670 nanometers) gave the best performance for daily LUE estimation. Through rigorous statistical analyses over a large image collection (n equals 420), the success of relating in situ daily tower-derived LUE to MODIS observations for northern forests was strongly influenced by satellite viewing geometry. LUE was calculated from CO2 fluxes (moles per moles of carbon absorbed quanta) measured at instrumented Canadian Carbon Program flux towers in four Canadian forests: a mature fir site in British Columbia, mature aspen and black spruce sites in Saskatchewan, and a mixed deciduous/coniferous forest site in Ontario. All aspects of the viewing geometry had significant effects on the MODIS-PRI, including the view zenith angle (VZA), the view azimuth angle, and the displacement of the view azimuth relative to the solar principal plane, in addition to illumination related variables.Nevertheless, we show that forward scatter sector views (VZA, 16 degrees-45 degrees) provided the strongest relationships to daily LUE, especially those collected in the early afternoon by Aqua (r squared = 0.83, RMSE (root mean square error) equals 0

  5. Evaluation of Dose: Comparative Effect of Fast Neutrons and other Types of Radiation on the Survival of E. Coli and S. Cerevisiae; Evaluation de la Dose Delivree et Actions Comparees des Neutrons Rapides et d'Autres Radiations sur la Survie de E. Coli et S. Cerevisiae; Otsenka dozy i sravnitel'noe vliyanie bystrykh nejtronov i drugikh vidov izlucheniya na vyzhivaemost' E. Coli i S. Cerevisiae; Evaluacion de la Dosis Suministrada y Comparacion de la Accion de los Neutrones Rapidos sobre la Supervivencia del E. Coli y del S. Cerevisiae con la de Otras Radiaciones

    Energy Technology Data Exchange (ETDEWEB)

    Arnaud, Y.; Bocquet, C. [Centre d' Etudes Nucleaires de Saclay (France)

    1964-05-15

    proizvodit izmerenie potoka i spektral'nogo raspredelenija bystryh nejtronov. Jeti miniatjurnye detektory razmeshhajutsja v razlichnyh tochkah obluchaemogo obrazca i pozvoljajut jeksperimental'no ocenivat' pogloshhaemuju tkanjami dozu. Takaja ustanovka i dozimetrija dali vozmozhnost' sravnit' vlijanie bystryh nejtronov i drugih vidov ionizirujushhego izluchenija (rentgenovy luchi) na odnokletochnye organizmy. Izuchalsja procent vyzhivaemosti i chastota morfologicheskih mutacij u Saccharo- myces cerevisiae. Ustanovlena takzhe krivaja vyzhivaemosti Escherichia coli v otnoshenii rentgenovyh luchej i nejtronov. Otmechaetsja, chto OBJe jetih razlichnyh vidov izluchenija zavisit ot issleduemogo zhivogo organizma, ot izbrannogo biologicheskogo kriterija, a takzhe ot dozy obluchenija, pri kotoroj proizvoditsja sravnenie. V jetih uslovijah OBJe javljaetsja funkciej dozy. Dejstvie bystryh nejtronov i rentgenovyh luchej chasto zavisit ot razlichnyh radiobiologicheskih processov. Bylo by proizvol'no svjazyvat' mezhdu soboj dozy jetih razlichnyh izluchenij linejnymi otnoshenijami. (author)

  6. Use of the Neutron Die-Away Technique to Test Control Rod Effectiveness Theories; Emploi de la Methode d'Absorption des Neutrons pour Verifier les Theories sur l'Efficacite des Barres de Commande; Ispol'zovanie metoda spada potoka nejtronov dlya proverki teorij ehffektivnosti reguliruyushchikh sterzhnej; Aplicacion de la Tecnica de Extincion Neutronica a la Verificacion de las Teorias sobre la Eficacia de las Barras de Control

    Energy Technology Data Exchange (ETDEWEB)

    Perez, R. B. [University of Florida, Gainesville, FL (United States); De Saussure, G.; Silver, E. G. [University of Florida, Gainesville, FL (United States); Oak Ridge National Laboratory, Oak Ridge, TN (United States)

    1964-04-15

    actualmente determinaciones con barras de dimensiones intermedias, a fin de averiguar el limite de aplicacion de la teoria de la difusion. (author) [Russian] Raschety jeffektivnosti regulirujushhih sterzhnej uslozhnjajutsja ih zavisimost'ju kak ot raspredelenija jenergij nejtronov, tak m ot geometrii sborki. Pri sravnenii teoreticheskih dannyh s rezul'tatami jeksperimentov, provedennyh na reaktorah ili kriticheskih sistemah, voznikajut trudnosti, svjazannye s vnutrennej slozhnost'ju takih sistem. Metod spada potoka nejtronov pozvoljaet poluchit' model' vseh teplovyh nejtronov, v kotoroj raspredelenie jenergii nejtronov mozhet byt' otdeleno ot prostranstvennyh jeffektov. Pojetomu geometricheskij faktor jeffektivnosti regulirujushhego sterzhnja mozhet byt' izuchen bez ucheta detalej nejtronnogo spektra, a rezul'taty mogut byt' sravneny s rezul'tatami chistoj prostoj jeksperimental'noj ustanovki. Metod osnovan na tom fakte, chto v jeksperimente s zamiraniem nejtronov, kak on zdes' opisan, laplasian sborki svjazan s postojannoj raspada osnovnogo vida po formuljo: B{sup 2} = ({lambda} - {lambda}{sub a})/D {lambda}{sub a} gde Ha-obratnyj poluperiod nejtronov v zamedlitele (sek-1 ); D- postojannaja diffuzii (sm2 'sek-1 ). V zamedljajushhih sborkah, ispol'zuemyh dlja jetih jeksperimentov, imelis' prjamougol'nye berillievye prizmy razlichnyh razmerov, sostavlennye iz nebol'shih (7,3 h 7,3 h 5,24 sm) blokov. Ispol'zovalis' tri vida kadmievyh regulirujushhih sterzhnej: tonkie diametrom 0,476sm, krestoobraznye i polye ''tolstye'' sterzhni secheniem 7,3 X 7,3sm. Byli provereny sledujushhie teoreticheskie shemy: 1) Nordhejma -Skalettara; 2) Hurvitca-Roe; 3) Cifrovoj hod diffuzii. Jeffekt krestoobraznogo poglotitelja byl raschitan s pomoshh'ju metoda konformnogo preobrazovanija Hurvitca-Roe. Dlja laplasiana bylo polucheno znachenie 0,0188sm{sup -2}, chto sravnimo s jeksperimental'nymi rezul'tatami, sostavivshimi 0,0187 {+-} 0,0006 cm{sup -2}. Znachenija, poluchennye dlja tolstyh sterzhnej s

  7. Dimeric structure of the N-terminal domain of PriB protein from Thermoanaerobacter tengcongensis solved ab initio

    Energy Technology Data Exchange (ETDEWEB)

    Liebschner, Dorothee [National Cancer Institute, Argonne National Laboratory, Argonne, IL 60439 (United States); Brzezinski, Krzysztof [National Cancer Institute, Argonne National Laboratory, Argonne, IL 60439 (United States); University of Bialystok, 15-399 Bialystok (Poland); Dauter, Miroslawa [Argonne National Laboratory, Argonne, IL 60439 (United States); Dauter, Zbigniew, E-mail: dauter@anl.gov [National Cancer Institute, Argonne National Laboratory, Argonne, IL 60439 (United States); Nowak, Marta; Kur, Józef; Olszewski, Marcin, E-mail: dauter@anl.gov [Gdansk University of Technology, 80-952 Gdansk (Poland); National Cancer Institute, Argonne National Laboratory, Argonne, IL 60439 (United States)

    2012-12-01

    The N-terminal domain of the PriB protein from the thermophilic bacterium T. tengcongensis (TtePriB) was expressed and its crystal structure has been solved at the atomic resolution of 1.09 Å by direct methods. PriB is one of the components of the bacterial primosome, which catalyzes the reactivation of stalled replication forks at sites of DNA damage. The N-terminal domain of the PriB protein from the thermophilic bacterium Thermoanaerobacter tengcongensis (TtePriB) was expressed and its crystal structure was solved at the atomic resolution of 1.09 Å by direct methods. The protein chain, which encompasses the first 104 residues of the full 220-residue protein, adopts the characteristic oligonucleotide/oligosaccharide-binding (OB) structure consisting of a five-stranded β-barrel filled with hydrophobic residues and equipped with four loops extending from the barrel. In the crystal two protomers dimerize, forming a six-stranded antiparallel β-sheet. The structure of the N-terminal OB domain of T. tengcongensis shows significant differences compared with mesophile PriBs. While in all other known structures of PriB a dimer is formed by two identical OB domains in separate chains, TtePriB contains two consecutive OB domains in one chain. However, sequence comparison of both the N-terminal and the C-terminal domains of TtePriB suggests that they have analogous structures and that the natural protein possesses a structure similar to a dimer of two N-terminal domains.

  8. Pulsed Source Measurements on a Uranium-Water Subcritical Assembly; Mesures Faites sur un Assemblage Sous- Critique Uranium-Eau Ordinaire a l'Aide d'une Source Pulsee; Izmereniya s pomoshch'yu istochnikov impul'snykh nejtronov na urano-vodnoi podkriticheskoi sborke; Mediciones con Fuentes Pulsantes en un Conjunto Subcritico Uranio-Agua

    Energy Technology Data Exchange (ETDEWEB)

    Gibson, I. H.; Walker, J. [Department of Physics, University of Birmingham, Birmingham (United Kingdom)

    1964-02-15

    reticulado rectificadas con precision; en todos los casos el uranio adopta la forma de barras de 109,8 cm de largo por 3,0 cm de diametro. El combustible se monta horizontalmente, alcanzando el peso de las cargas hasta unas 6 t. Se eliminan, o eligen a voluntad, los armonicos espaciales ubicando convenientemente un pequeno detector de centelleo. Los autores presentan resultados experimentales que indican la relacion de dependencia existente entre la constante de desintegracion y el laplaciano y los comparan con los valores hallados teoricamente. (author) [Russian] Sborka na prirodnom urane i legkoj vode bez otrazhatelja ispol'zuetsja sovmestno s istochnikom impul'snyh nejtronov dlja izmerenija vremeni raspada pri razlichnyh znachenijah laplasiana. Chetyre razlichnyh shaga reshetki na otrezke 3,94 - 5,8 sm byli polucheny putem ispol'zovanija razlichnyh par horosho obrabotannyh plastinok reshetki, v kazhdom sluchae uran byl v vide sterzhnej dlinoj 109,8 i diametrom 3,0 sm. Sterzhni ustanavlivalis' gorizontal'no, ves zagruzok sostavljal priblizitel'no 6 t. Prostranstvennye kolebanija ustranjalis' ili vydeljalis' putem sootvetstvujushhego ustanovlenija nebol'shogo scintilljacionnogo detektora. Budut predstavleny i sravneny s teoreticheskimi dannymi rezul'taty opytov, pokazyvajushhie zavisimost' postojannoj raspada ot laplasiana. (author)

  9. Some Results of the Research Work on the Biological Effect of Neutrons and Protons; Quelques Resultats des Etudes sur les Effets Biologiques des Neutrons et des Protons; Nekotorye itogi izucheniya biologicheskogo dejstviya nejtronov i protonov; Algunos Resultados del Estudio de los Efectos Biologicos de los Neutrones y Protones

    Energy Technology Data Exchange (ETDEWEB)

    Moskalev, Ju. I. [Institut Biofiziki AMN SSSR, SSSR (Russian Federation)

    1964-03-15

    investigacion de los efectos biologicos de los neutrones y protones de elevada energia. Se demuestra que son importantes problemas de la radiobiologia moderna la determinacion de la eficacia biologica relativa de los diversos tipos de radiaciones en distintas condiciones de irradiacion, asi como la indagacion de las diferencias cualitativas de su efecto sobre los organismos vivos. Se senala la necesidad de estimular eLestudio de la accion combinada de los diversos factores. Partiendo de ejemplos concretos, se exponen los principales resultados de las investigaciones sobre profilaxis de las radiolesiones provocadas por neutrones y protones de elevada energia y se indica la contribucion de esas investigaciones a la comprension de la accion especifica de los diversos tipos de radiaciones. (author) [Russian] Obobshheny rezul'taty jeksperimental'nyh issledovanij, vypolnennyh za poslednie 2 - 3 goda v oblasti izuchenija biologicheskogo dejstvija nejtronov i protonov vysokih jenergij. Pokazano, chto vazhnoj zadachej sovremennoj radio-biologii javljaetsja issledovanie kak otnositel'noj biologicheskoj jeffektivnosti razlichnyh vidov izluchenija pri raznyh u slovijah vozdejstvija luchevo go faktora, tak i vyjasnenija kachestvennyh razlichij v dejstvii ih na zhivotnyj organizm. Obrashheno vnimanie na neobhodimost' razvitija issledovanij po kombinirovannomu dejstviju razlichnyh faktorov luchevoj i neluchevoj prirody. Na konkretnyh primerah prodemonstrirovany osnovnye dostizhenija issledovanij po profilaktike luchevyh porazhenij, vyzvannyh nejtronami i protonami vysokih jenergij, a takzhe prodemonstrirovana rol' jetih issledovanij dlja ponimanija specifiki dejstvija raznyh vidov izluchenija. (author)

  10. Uporaba e-gradiv pri pouku računalništva v osnovni šoli

    OpenAIRE

    Benedičič, Andrej

    2015-01-01

    V zadnjih nekaj letih se je pouk v osnovnih in srednjih šolah pri nas in po svetu močno spremenil, k čemur je pripomogel tudi razvoj informacijsko-komunikacijske tehnologije (v nadaljevanju IKT). Dandanes si pouka brez uporabe IKT pri vseh učnih predmetih skoraj ne moremo več predstavljati. V šole so tako prišle elektronske table, interaktivne table, tablice, glasovalne naprave in ostale elektronske naprave, ki lahko ob ustrezni uporabi pripomorejo k večji aktivnosti učencev med poukom in izb...

  11. The Biological Effect of Fast Neutrons and High-Energy Protons; Effets Biologiques des Neutrons Rapides et des Protons de Haute Energie; Biologicheskoe dejstvie bystrykh nejtronov i protonov vysokikh ehnergii; Efectos Biologicos de los Neutrones Rapidos y de los Protones de Elevada Energia

    Energy Technology Data Exchange (ETDEWEB)

    Moskalev, Ju. I.; Petrovich, I. K.; Strel' cova, V. N.

    1964-03-15

    despues de la irradiacion con una dosis de 42,5 rad. Con la misma dosis tambien se manifiestan leucosis y tumores de la tiroides. En la irradiacion protonica, la dosis tumorigena minima es del orden de 250 rad para lee tejidos hematopoyeticos y la tiroides, de 300 rad para los testiculos, y de unos 100 rad para la prostata, el pancreas y el tejido hipodermico. Despues de la irradiacion con neutrones rapidos, la frecuencia de la aparicion de tumores en los testiculos, el intestino grueso, los rinones y el higado, presenta un aumento para dosis entre 42,5 y 85 rad, y en la piel y el tejido hipodermico ocurre lo mismo para dosis de 85 rad. En el caso de la irradiacion con neutrones rapidos, los tumores aparecen con dosis de 3 a 5 veces inferiores a las dosis protonicas. (author) [Russian] Predstavljajutsja rezul'taty sravnitel'nyh jeksperimentov po izucheniju dejstvija bystryh nejtronov i protonov vysokih jenergij (500 Mjev) na prodolzhitel'nost' zhizni, perifericheskuju krov', cha sto tu i skorost' pojavlenija opuholej u krys v zavisimosti o t dozy vozdejstvija i sroka nabljudenija. Opyt s nejtronami postavlen na 573, s protonami na 490 belyh krysah. Bystrymi nejtronami zhivotnyh obluchali v dozah ot 8,5 do 510 rad, protonami ot 28 do 1008 rad. Dlja bystryh nejtronov i protonov ustanovleny velichiny ostro, podostro i hronicheski jeffektivnyh d o z . LD{sub 50/30} dlja nejtronov ravna 408, dlja protonov 600 rad, a LD{sub 50/120} so otvetstvenno 380 i 600 rad. Proanalizirovany zakonomernosti vymiranija krys v rannie i pozdnie sroki jeksperimenta. Pokazano, chto srednjaja prodolzhitel'nost' zhizni krys, obluchennyh bystrymi nejtronami, ne zavisit ot pola. Forma krivoj doza-jeffekt dlja otdel'nyh pokazatelej perifericheskoj krovi sushhestvenno zavisit ne tol'ko ot radiochuvstvitel'nosti sootvetstvujushhih kletok krovi, no i ot sroka nabljudenija. Ona mozhet sushhestvenno izmenjat'sja vo vremeni dlja odnogo i t o go zhe pokazatelja. V otdalennye sroki posle obluchenija kak

  12. Measurement of resonance parameters of cross-sections affecting fast-neutron propagation in various media; Mesure des parametres de resonance de sections efficaces lies a la propagation des neutrons dans differents milieux; Izmerenie parametrov rezonansnoj struktury sechenij, vliyayushchikh na rasprostranenie bystrykh nejtronov v sredakh; Medicion de los parametros de resonancia de las secciones eficaces que afectan a la propagacion de los neutrones rapidos en distintos medios

    Energy Technology Data Exchange (ETDEWEB)

    Nikolaev, M N; Filippov, V V; Bondarenko, I I [Academy of Sciences, Moscow, Union of Soviet Socialist Republics (Russian Federation)

    1962-03-15

    propagacion de los neutrones en la materia abarca desde algunas decenas de kiloelectron-voltios , para los nucleos pesados, hasta unos cuantos mega-electron-voltios, para los nucleos intermedios. Para poder tener en cuenta los efectos de resonancia en el calculo de los parametros de los grupos, es indispensable conocer no solo las secciones eficaces medias correspondientes a las reacciones de los neutrones con la materia, sino tambien algunas magnitudes tales como (1/{Sigma}{sub t}), (1/{Sigma}{sub t}{sup 2}) etc. - los corchetes indican que se toman valores promedios de los grupos energeticos. La informacion de que se dispone actualement acerca de los parametros de resonancia en el terreno de los neutrones rapidos no permite calcular las magnitudes mencionadas con la exactitud necesaria. Por tal razon interesa medir directamente (1/{Sigma}{sub t}), (1/{Sigma}{sub t}{sup 2}) y otros valores analogos. Los autores presentan los resultados de las mediciones de una serie de parametros tales como ({Sigma}{sub t}), ({Sigma}{sub t}{sup 2}), (1/{Sigma}{sub t}), (1/{Sigma}{sub t}{sup 2}), (1/{Sigma}{sub t}{sup 3}), etc. que caracterizan la estructura de las secciones eficaces de una serie de nucleos intermedios para neutrones de energia comprendida entre 300 keV y 3 MeV. Dichos valores se dedujeron analizando las curvas de paso a traves de la materia, obtenidas con una geometria favorable, hasta un valor limite de 10{sup -2}, aproximadamente . Los datos obtenidos demuestran que los efectos de resonancia ejercen una notable influencia sobre las caracteristicas de la difusion en la materia. (author) [Russian] Pri sostavlenii sistem mnogogruppovykh konstant dlya rascheta reaktorov na bystrykh i promezhutochnykh nejtronakh vo mnogikh sluchayakh neobkhodimo uchityvat' ehffekty samoehkranirovki , svyazannye s rezonansnoj strukturoj sechenij. EHnergeticheskaya oblast', v kotoroj rezonansnaya struktura okazyvaet sushchestvennoe vliyanie na rasprostranenie nejtronov v veshchestve

  13. Remote detection of water stress conditions via a diurnal photochemical reflectance index (PRI) improves yield prediction in rainfed wheat

    Science.gov (United States)

    Magney, T. S.; Vierling, L. A.; Eitel, J.

    2014-12-01

    Employing remotely sensed techniques to quantify the existence and magnitude of midday photosynthetic downregulation using the photochemical reflectance index (PRI) may reveal new information about plant responses to abiotic stressors in space and time. However, the interpretation and application of the PRI can be confounded because of its sensitivity to several variables changing at the diurnal (e.g., irradiation, shadow fraction) and seasonal (e.g., leaf area, chlorophyll and carotene pigment concentrations, irradiation) time scales. We explored different techniques to correct the PRI for variations in canopy structure and relative chlorophyll content (ChlR) using highly temporally resolved (frequency = five minutes) in-situ radiometric measurements of PRI and the Normalized Difference Vegetation Index (NDVI) over eight soft white spring wheat (Triticum aestivum L.)field plots under varying nitrogen and soil water conditions over two seasons. Our results suggest that the influence of seasonal variation in canopy ChlR and LAI on the diurnally measured PRI (PRIdiurnal) can be minimized using simple correction techniques, therefore improving the strength of PRI as a tool to quantify abiotic stressors such as daily changes in soil volumetric water content (SVWC), and vapor pressure deficit (VPD). PRIdiurnal responded strongly to available nitrogen, and linearly tracked seasonal changes in SVWC, VPD, and stomatal conductance (gc). Utilizing the PRI as an indicator of stress, yield predictions significantly over greenness indices such as the NDVI. This study provides insight towards the future interpretation and scaling of PRI to quantify rapid changes in photosynthesis, and as an indicator of plant stress.

  14. PriFi - Using a Multiple Alignment of Related Sequences to Find Primers for  Amplification of Homologs

    DEFF Research Database (Denmark)

    Fredslund, Jakob; Schauser, Leif; Madsen, Lene Heegaard

    2005-01-01

    Using a comparative approach, the web program PriFi (http://cgi-www.daimi.au.dk/cgi-chili/PriFi/main) designs pairs of primers useful for PCR amplification of genomic DNA in species where prior sequence information is not available. The program works with an alignment of DNA sequences from...... of a procedure for developing general markers serving as common anchor loci across species. To accommodate users with special preferences, configuration settings and criteria can be customized....

  15. Načrtovani preventivni hišni obisk pri nosečnici

    OpenAIRE

    Hofinger Mihelič, Špela

    2009-01-01

    Rojstvo zdravega otroka je nedvomno eden izmed najpomembnejših dogodkov v življenju posameznika in družine. Namen diplomske naloge je bil ugotoviti v kolikšni meri se pri nosečnicah vključuje v preventivo patronažna medicinska sestra (PMS) in kaj nosečnice pričakujejo od njenega hišnega obiska. Cilj je bil oceniti želje nosečnic po hišnem obisku PMS in ugotoviti kje dobijo nosečnice največ informacij o nosečnosti in zdravem načinu življenja ter ugotoviti koliko so nosečnice poučene o pravicah...

  16. La mort d’un couple : prière(s) et vie publiques

    OpenAIRE

    Touzeil-Divina, Mathieu

    2009-01-01

    Si, avant la Loi du 5 décembre 1905, les Eglises et l’Etat concrétisaient matériellement leurs liens étroits par des rites officiels nommés prières publiques, ceux-ci sont censés avoir été supprimés depuis. C’est l’histoire de cette suppression (après en avoir retenu une définition) qui est ici envisagée à travers trois secteurs cardinaux de l’action administrative : la vie universitaire, parlementaire et judiciaire. Dans ces trois hypothèses les prières publiques ont été supprimées de façon ...

  17. VLOGA OPERATIVNEGA MANAGEMENTA PRI RAZVOJU UNICREDIT BANKE SLOVENIJE D.D.

    OpenAIRE

    Horvat, Metod

    2010-01-01

    Diplomsko delo predstavlja vlogo operativnega managementa pri razvoju Unicredit Banka Slovenije d.d. Operativni management predstavlja ključen kader, ki s svojim znanjem, sposobnostjo in pripravljenostjo lahko pripelje do realizacije ciljev in razvoja banke. V teoretičnem delu gre za pregled strokovne literature na področju organizacije, managerja, managementa, operativnega managementa, operativnega managementa v Unicredit Banki Slovenije d.d. V empiričnem delu je predstavljena raziskav...

  18. SOCIAL PRACTICE PERFORMED BY BALINESE SCULPTORS IN DISTRICTS OF UBUD AND SUKAWATI TO PRY INTO THE LAW OF PHORNOGRAPHY

    Directory of Open Access Journals (Sweden)

    I Ketut Sudita

    2013-02-01

    Full Text Available Balinese sculptors in districts of Ubud and Sukawati, Gianyar, Bali pry into the Law of Pornography. Those who agree state that the law is needed to maintain the morality which has been getting worse, and those who disagree state that it may emasculate their freedom and creativities. This study gives answers to (1 what social practices were performed by the Balinese sculptors to pry into the Law of Pornography?, (2 why did they pry into the application of the law?, and (3 what was the meaning of their prying? Several relevant critical theories such as the theory of structuration, the theory of hegemony, and the theory of aesthetics were eclectically used in this study. The data needed were collected through observation, in-depth interview, documentation study, and library research. The result of the study showed that the Balinese sculptors showed their resistance to the application of the law by making adaptation, changing profession, and still producing pornographic works. The sanction which might be imposed upon them, the consumers of pornographic works decreased, and they were eliminated from exhibitions scared them when they pried into the law. What they did could not be separated from economic, political, ideological, moral, and ethic factors. The meaning of their prying was that it caused them to lose their idealism, their consumers went down, and the number of pornographic works dropped as well.

  19. Photochemical Reflectance Index (PRI) as a proxy of Light Use Efficiency (LUE) and transpiration in Mediterranean crop sites

    Science.gov (United States)

    LE Dantec, V.; Chebbi, W.; Boulet, G.; Merlin, O.; Lili-Chabaane, Z.; Er Raki, S.; Ceschia, E.; Khabba, S.; Fanise, P.; Zawilski, B.; Simonneaux, V.; Jarlan, L.

    2016-12-01

    The Photochemical Reflectance Index (PRI) is based on the short term reversible xanthophyll pigment changes accompanying plant stress and therefore of the associated photosynthetic activities. Strong relationships between PRI and Light Use Efficiency (LUE) were shown at leaf and canopy scales and over a wide range of species (Garbulsky et al., 2011). But very few previous works have explored the potential link with plant water status. In this study, we have first analyzed the link between PRI and LUE at canopy scale on two different crops in terms of canopy structure and crop management: olive grove (Tunisia) and wheat grown under different water regimes (irrigated or rainfed) and climate zones (France, Morocco). We have investigated the daily and seasonal dynamics of PRI; linking its variations to meteorological factors (global radiation and sun angle effects, soil water content, relative air humidity …) and plant processes. The highest correlations were mainly observed in clear skies conditions. We have found, whatever site, linear negative relationships between PRI and LUE using data acquired in midday (i.e. in solar zenithal angle condition). Linear link between PRI and sapflow measurements was also revealed. This correlation was obtained over periods characterized by a moderate soil water deficit, i.e. by when transpiration rate was mainly control by Vapor Pressure Deficit. We will then briefly presented alternative and complementary approaches to this index, to detect different level of water stress using thermal infrared emissions.

  20. The Quantification Process for the PRiME-U34i

    International Nuclear Information System (INIS)

    Hwang, Mee-Jeong; Han, Sang-Hoon; Yang, Joon-Eon

    2006-01-01

    In this paper, we introduce the quantification process for the PRIME-U34i, which is the merged model of ETs (Event Trees) and FTs (Fault Trees) for the level 1 internal PSA of UCN 3 and 4. PRiME-U34i has one top event. Therefore, the quantification process is changed to a simplified method when compared to the past one. In the past, we used the text file called a user file to control the quantification process. However, this user file is so complicated that it is difficult for a non-expert to understand it. Moreover, in the past PSA, ET and FT were separated but in PRiMEU34i, ET and FT were merged together. Thus, the quantification process is different. This paper is composed of five sections. In section 2, we introduce the construction of the one top model. Section 3 shows the quantification process used in the PRiME-U34i. Section 4 describes the post processing. Last section is the conclusions

  1. Neutron Tests at the Start-Up of EDF1; Les essais neutroniques au demarrage du reacteur EDF1; Nejtronnye izmereniya pri puske reaktora EDF1; Ensayos neutronicos efectuados durante la puesta en marcha del reactor EDF1

    Energy Technology Data Exchange (ETDEWEB)

    Teste du Bailler, A. [Centre d' Etudes Nucleaires de Saclay (France); Janin, R. [Electricite de France, Paris (France)

    1963-10-15

    ehksperimental'nykh metodov, razrabotannykh na reaktorakh v Markule, byla provedena vo vremya puska reaktora EDF.1. Izmereniya kasalis' glavnym obrazom ehffektivnosti upravlyayushchikh sterzhnej pri razlichnykh p ogruzh eniyakh. Opredelyaetsya skhema pod''ema s terzhnej, kotoraya pozvolyaet poluchat' polnuyu moshchnost' prk soblyudenii opredelennykh ogranichenij v temperature obolochek i gaza. Parallel'no byli provedeny izmereniya potoka pri razlichnykh polozheniyakh kompensiruyushchikh sterzhnej i pri razlichnykh zagruzkakh poglotitelej v opredelennykh kanalakh, v zavisimosti ot predvaritel'nykh raschetov v dvukhraehmernom izmerenii. Ehti izmereniya byli polucheny putem aktivatsii tochechnykh detektorov s primeneniem obychnogo metoda otravleniya vozdukha. Pri nekotorykh urovnyakh temperatury (do 140{sup o}C) byli provedeny izmereniya koehffitsientov reaktivnosti i ehffektivnosti reguliruyushchikh sterzhnej. V to zhe vremya putem aktivatsii sootvetstvuyushchikh detektorov (uran, plutonij, lyutetsij, marganets, indij, zoloto) byli provedeny izmereniya koehffitsientov spektra. Dlya izmereniya ehffektivnosti nekotorykh kompensiruyushchikh sterzhnej byl ispol'zovan ostsillyatsionnyj metod. Nakonets, s tselyakh izucheniya zashchity i povrezhdeniya grafita byli provedeny izmereniya potoka bystrykh nejtronov. (author)

  2. Povezanost modulacije refleksa H pri prehodu iz leže v stojo in mejami stabilnosti v stoji pri baletnih plesalcih

    OpenAIRE

    Lešnik, Tjaša

    2017-01-01

    Da bi ugotovili povezanost modulacije refleksa H in mej stabilnosti pri baletnih plesalcih, smo izmerili amplitudo refleksa H in izvedli štirismerni test mej stabilnosti. Refleks H je bil izmerjen osmim profesionalnim baletnim plesalcem, aktivnim članom baletnega ansambla Slovenskega narodnega gledališča Ljubljana in Maribor (1 moški in 7 žensk, povprečna starost: 25±4,2 let, povprečna višina: 169,25±5,4 cm in povprečna teža: 56,45± 10,1 kg). Vsi merjenci so zaključili najmanj 10 let plesnega...

  3. Prion-like nanofibrils of small molecules (PriSM): A new frontier at the intersection of supramolecular chemistry and cell biology.

    Science.gov (United States)

    Zhou, Jie; Du, Xuewen; Xu, Bing

    2015-01-01

    Formed by non-covalent interactions and not defined at genetic level, the assemblies of small molecules in biology are complicated and less explored. A common morphology of the supramolecular assemblies of small molecules is nanofibrils, which coincidentally resembles the nanofibrils formed by proteins such as prions. So these supramolecular assemblies are termed as prion-like nanofibrils of small molecules (PriSM). Emerging evidence from several unrelated fields over the past decade implies the significance of PriSM in biology and medicine. This perspective aims to highlight some recent advances of the research on PriSM. This paper starts with description of the intriguing similarities between PriSM and prions, discusses the paradoxical features of PriSM, introduces the methods for elucidating the biological functions of PriSM, illustrates several examples of beneficial aspects of PriSM, and finishes with the promises and current challenges in the research of PriSM. We anticipate that the research of PriSM will contribute to the fundamental understanding at the intersection of supramolecular chemistry and cell biology and ultimately lead to a new paradigm of molecular (or supramolecular) therapeutics for biomedicine.

  4. Responses of the reflectance indices PRI and NDVI to experimental warming and drought in European shrublands along a north–south climatic gradient

    DEFF Research Database (Denmark)

    Mänd, Pille; Hallik, Lea; Peñuelas, Josep

    2010-01-01

    NDVI680 [780 nm; 680 nm] using red spectral region, and NDVI570 [780 nm; 570 nm] using the same green spectral region as PRI. All three reflectance indices were significantly related to green LAIe and were able to detect changes in shrubland vegetation among treatments. In general warming treatment...... increased PRI and drought treatment reduced NDVI values. The significant treatment effect on photochemical efficiency of plants detected with PRI could not be detected by fluorescence measurements. However, we found canopy level measured PRI to be very sensitive to soil reflectance properties especially...

  5. Pulsed Neutron Studies of BeO-Natural Uranium Lattices; Etudes de Reseaux Uranium Naturel-Glucine, par la Methode des Neutrons Pulses; Issledovanie reshetok BeO-prirodnyj uran s pomoshch'yu impul'snykh nejtronov; Estudio de Reticulados de Beo-Uranio Natural con Ayuda de Neutrones Pulsados

    Energy Technology Data Exchange (ETDEWEB)

    Joshi, B. V.; Nargundkar, V. R.; Subbarao, K. [Atomic Energy Establishment Trombay, Bombay (India)

    1965-10-15

    . Las rafagas de neutrones se produjeron con un acelerador de cascada pulsando la fuente de iones y empleando la reaccion Be(d, n). Como detectores se emplearon contadores proporcionales de BF{sub 3} enriquecido. Los armonicos espaciales y temporales se eliminaron por el metodo descrito por Joshi y sus colaboradores en otra memoria presentada en este simposio. Se determino la constante de decrecimiento del modo fundamental para diversos laplacianos cuando la criticidad estaba muy lejos de alcanzarse. En estos calculos se tuvo en cuenta el efecto del enfriamiento por difusion, asi como el de la anisotropic. Todas las constantes de difusion y de multiplicacion se determinaron mediante ajuste por cuadrados minimos siguiendo tres procedimientos distintos. El laplaciano crftico inmediato se obtuvo resolviendo la ecuacion de la constante de decrecimiento para {lambda} = 0. Los resultados finales fueron los siguientes: Longitud de difusion L = 15,2 cm. Constante de absorcion {lambda}{sub 0} = 162,5 s{sup -1}. Coeficiente de difusion D = 1,761 * 10{sup 5} cm{sup 2}/s. Constante de enfriamiento por difusion C = -8,766 * 10{sup 5} cm{sup 4}/s. Edad {tau} = 150,7 cm{sup 2} Factor de multiplicacion infinita k{sub {infinity}}= 1,126. Laplaciano crftico inmediato B{sup 2} = 3,00 * 10{sup -4} cm{sup -2}. (author) [Russian] Opisyvaetsja primenenie metoda impul'snyh nejtronov dlja opredelenija dif- fuzionnyh parametrov i postojannyh razmnozhenija reshetok. S pomoshh'ju jetogo metoda po- lucheny diffuzionnye parametry i postojannye razmnozhenija dlja reshetok VeO-prirodnyj uran. Ispol'zovavshiesja uranovye sterzhni imeli v diametre 2,92 sm i byli pokryty alju- miniem tolshhinoj v 0,072 sm. Oni byli raspolozheny vertikal'no v kanalah, imejushhih kva- dratnoe sechenie 5 h 5 sm v kvadratnoj reshetke s shagom 15 sm. Impul'sy nejtronov polu- chali s pomoshh'ju kaskadnogo uskoritelja v rezul'tate pul'sirovanija istochnika ionov i is- pol'zovanija reakcij Be (d,n). Detektorami sluzhili

  6. STRATEGIJA ZDRAVEGA ŽIVLJENJA PRI DELU V MERCATORJU D.D.

    OpenAIRE

    Črnila, Marija

    2009-01-01

    V prvem delu naloge je prikazan poklic prodajalca pri nas. Delo se osredotoči na zdravstvene izostanke z dela v Sloveniji. V tem kontekstu so predstavljena posamezna teoretična izhodišča. Nakazane so ločnice med zdravstvenimi izostanki z dela in delodajalci. V osrednjem delu naloge je predstavljena strategija za promocijo zdravja v delovnem okolju, možnosti za zniževanje bolniškega staleža, Luksemburška deklaracija. Osvetljeno je vprašanje dimenzij zdravega življenjskega sloga. Z delom ...

  7. IZRAŽANJE NEPRIJETNIH ČUSTEV PRI PREDŠOLSKIH OTROCIH

    OpenAIRE

    Kumer, Monika

    2012-01-01

    V diplomskem delu Izražanje neprijetnih čustev pri predšolskih otrocih so podrobneje predstavljena naslednja neprijetna čustva: jeza, strah, žalost, sram, ljubosumje, gnus. V teoretičnem delu sem najprej opredelila čustva kot del duševnih procesov, pojem čustva definirala glede na različne avtorje in različne teorije ter opisala osnovne značilnosti čustev. Navedla sem, kako lahko čustva med seboj razlikujemo (afekti in razpoloženja, osnovna in sestavljena čustva oz. temeljna in kompleksna ...

  8. KRMILJENJE MIKROKRMILNIŠKEGA MODULA ARDUINO IN NJEGOVA UPORABA PRI KOMUNIKACIJI Z OSTALIMI NAPRAVAMI

    OpenAIRE

    Ekart, Matej

    2012-01-01

    V diplomskem delu smo obravnavali mikrokrmilniški modul Arduino. Opisali smo strojno opremo modela Uno, ki ga uporabljamo v praktičnem delu, ter predstavili osnovne karakteristike ostalih modelov. V nadaljevanju smo spoznali odprtokodno razvojno okolje Arduino in Arduino programski jezik. V praktičnem delu smo preverili, kako se odprtokodna platforma Arduino izkaže v praksi. Razvili smo avtomatski sistem za samodejno zalivanje, pri čemer smo uporabili številne dodatne komponente, ki smo ji...

  9. UPORABA RAČUNALNIŠKIH PROGRAMOV IN MOBILNIH APLIKACIJ PRI OPAZOVANJU NEBA

    OpenAIRE

    Rogač, Vida

    2015-01-01

    Astronomija je veda, ki je spremljala že pračloveka. Ljudje so se že od nekdaj orientirali po zvezdah. Dandanes astronomije, razen znanstvenih raziskovanj, ne uporabljamo več v tovrstne namene, ampak je ta za večino le hobi. Ljudje se ozirajo v nebo in poskušajo prepoznati objekte, ki jih lahko opazijo na nebu. Pri tem si lahko s pomočjo novih tehnologij pomagamo kar sami. Poiščemo ustrezen računalniški program ali mobilno aplikacijo, ki nam točno poimenuje svetlo piko na nočnem nebu, ki jo o...

  10. Simbolika dogajalnega prostora v Matkovi Tini, Sreči in Krstu pri Savici:

    OpenAIRE

    Božič, Zoran

    2000-01-01

    The typical settings in Matkova Tina, Sreča (Happiness) and Krst pri Savici (The Baptism by the Savica) is locations near a water. Water symbolically bathes away guilt of the central characters, i.e. the innkeeper's Tina, Strežkova Tinka and Črtomir, who all yearned for love but ended up as outcasts and doers of action with fatal consequences. Tina, Tinka and Črtomir did the stations along the river Soča. The river is marked by the figure of the Christian saint John Nepomuce, protector agains...

  11. Vloga medicinske sestre pri skrbi za otroka z očesno protezo

    OpenAIRE

    Lukić, Maja

    2017-01-01

    Uvod: Retinoblastom je najpogostejši maligni tumor, ki se velikokrat pojavi v otroški dobi. Bolezen je sicer redka, a zelo nevarna, saj lahko uniči tako otrokovo oko kot tudi njegov vid. Pomembna je hitra prepoznava tega nevarnega tumorja, takojšna diagnostika in zdravljenje. Večje tveganje za nastanek retinoblastoma obstaja pri otrocih, katerih bolezen se je v družini že pojavila. Namen: Namen diplomskega dela je s pomočjo pregleda literature ugotoviti, na kakšen način in kako lahko medicins...

  12. Uporaba animiranih filmov in risank pri poučevanju naravoslovnih tematik

    OpenAIRE

    Jeraj, Tina; Susman, Katarina

    2017-01-01

    Otroci se z risankami srečujejo že zelo zgodaj, tako v domačem kot v učnem okolju. Uporaba animiranih filmov pri pouku predstavlja motivacijsko orodje, poleg tega pa se ob premišljenem izboru risanke in spremljevalnih dejavnosti učenci tudi učijo. V prispevku je predstavljena raziskava o zastopanosti naravoslovnih tematik in naravoslovnih spodrsljajev (napak, ki so v nasprotju z realnostjo) v naboru risank, ki so trenutno aktualne med učenci. V okviru pedagoške raziskave smo v skupini tretješ...

  13. Miselni procesi pri tekačih na ultramaratonskih preizkušnjah

    OpenAIRE

    Ahac, Urška

    2017-01-01

    Cilj diplomskega dela je bil izluščiti glavne miselne vzorce in vodila rekreativnih tekačev na dolge proge. Pri razdaljah, ki segajo v dvakratni maraton in več, je potrebna izdatna mera samomotivacije, slednja pa lahko izvira iz pozitivnih prepričanj ali pa negativnih preteklih travm posameznika. Vsi, ki tečejo na daljše razdalje, imajo za seboj močan psihološki vzvod in naš namen je bil slednje poiskati ter podrobneje opisati. V tem projektu so povzeti rezultati nekaterih raziskav, ki so...

  14. Vías de señalización en enfermedades priónicas

    OpenAIRE

    Rodríguez Fernández, Agustí

    2007-01-01

    Las enfermedades priónicas, también conocidas como EETs (Encefalopatías Espongiformes Transmisibles), son un grupo de enfermedades neurodegenerativas fatales que, debido a su transmisibilidad potencial han tenido un gran impacto social, político y económico en las últimas décadas. Las EETs afectan a los humanos y a algunos grupos de animales, presentan largos períodos de incubación y producen la muerte pocos meses después de la aparición de la sintomatología clínica. Su origen se atribuye a ...

  15. Solution structure of the N-terminal domain of a replication restart primosome factor, PriC, in Escherichia coli

    Science.gov (United States)

    Aramaki, Takahiko; Abe, Yoshito; Katayama, Tsutomu; Ueda, Tadashi

    2013-01-01

    In eubacterial organisms, the oriC-independent primosome plays an essential role in replication restart after the dissociation of the replication DNA-protein complex by DNA damage. PriC is a key protein component in the replication restart primosome. Our recent study suggested that PriC is divided into two domains: an N-terminal and a C-terminal domain. In the present study, we determined the solution structure of the N-terminal domain, whose structure and function have remained unknown until now. The revealed structure was composed of three helices and one extended loop. We also observed chemical shift changes in the heteronuclear NMR spectrum and oligomerization in the presence of ssDNA. These abilities may contribute to the PriC-ssDNA complex, which is important for the replication restart primosome. PMID:23868391

  16. A pri-miR-218 variant and risk of cervical carcinoma in Chinese women

    International Nuclear Information System (INIS)

    Shi, Ting-Yan; Cheng, Xi; Wu, Xiaohua; Wei, Qingyi; Chen, Xiao-Jun; Zhu, Mei-Ling; Wang, Meng-Yun; He, Jing; Yu, Ke-Da; Shao, Zhi-Ming; Sun, Meng-Hong; Zhou, Xiao-Yan

    2013-01-01

    MicroRNA (miRNA)-related single nucleotide polymorphisms (SNPs) may compromise miRNA binding affinity and modify mRNA expression levels of the target genes, thus leading to cancer susceptibility. However, few studies have investigated roles of miRNA-related SNPs in the etiology of cervical carcinoma. In this case–control study of 1,584 cervical cancer cases and 1,394 cancer-free female controls, we investigated associations between two miR-218-related SNPs involved in the LAMB3-miR-218 pathway and the risk of cervical carcinoma in Eastern Chinese women. We found that the pri-miR-218 rs11134527 variant GG genotype was significantly associated with a decreased risk of cervical carcinoma compared with AA/AG genotypes (adjusted OR=0.77, 95% CI=0.63-0.95, P=0.015). However, this association was not observed for the miR-218 binding site SNP (rs2566) on LAMB3. Using the multifactor dimensionality reduction analysis, we observed some evidence of interactions of these two SNPs with other risk factors, especially age at primiparity and menopausal status, in the risk of cervical carcinoma. The pri-miR-218 rs11134527 SNP was significantly associated with the risk of cervical carcinoma in Eastern Chinese women. Larger, independent studies are warranted to validate our findings

  17. Prières et service public Prayers and the civil service

    Directory of Open Access Journals (Sweden)

    Gilles J. Guglielmi

    2009-04-01

    Full Text Available La marque de la séparation des Eglises et de l’Etat semble en France suffisamment forte pour que les points de contact entre service public et prière soient rares et plutôt indirects, à partir de comportements qui n’ont en général pas pour objet d’opposer le seul acte de prière aux normes juridiques et sociales environnantes. Néanmoins à partir des systèmes juridiques et des pratiques d’autres pays d’Europe, les arrêts pragmatiques de la Cour européenne des droits de l'homme révèlent une retenue comparable, même si leur fondement est nécessairement différent.Dans son ensemble, la jurisprudence de la Cour permet de constater que les Etats membres du Conseil de l’Europe ont parfois à l’égard de la prière des attitudes restrictives qui dépendent soit d’une sorte de protection de la religion dominante par rapport aux cultes minoritaires, soit d’un refus implicite de l’athéisme. En revanche, la notion de service public, n’étant pas universellement reconnue en Europe, ne fournit pas un cadre de raisonnement juridique signifiant dans les arrêts, ce qui ne permet d’identifier les rapports entre prières et service public que par le biais du contexte dans lequel se produisent les actes de prière.The mark of the separation between the Church and the State seems sufficiently strong in France so that the points of contact between the civil service and prayer are rare and rather indirect, starting with behaviours which do not have in general aim to oppose the sole act of prayer to the legal and social standards surrounding (First part. Nevertheless the legal systems and practices of other countries of Europe reveal the pragmatic judgements of the European Court of Human Rights and their comparable reserve, even if their base is necessarily different (Second part.As a whole, the decisions of the Court make it possible to note that the Member States of the Council of Europe sometimes have restrictive attitudes

  18. Povratna informacija pri matematičnih domačih nalogah

    OpenAIRE

    Žitko, Urša

    2017-01-01

    V diplomskem delu je predstavljena povratna informacija pri matematičnih domačih nalogah. V teoretičnem delu so predstavljene domače naloge: njihova zgodovina, namen in več klasifikacij vrst domačih nalog. Domače naloge so namenjene učencem, da z njimi usvojijo in utrdijo obravnavano snov. Domača naloga učencem omogoča učenje uporabe postopkov, ki jih že poznajo, in pridobivanje novih spretnosti za nadaljnje razumevanje snovi. Z rednim pisanjem domačih nalog se učenci naučijo vestnega in sam...

  19. PRI 3.1: Electrolyte membrane fuel cells (Co-PACEM), final report (july 2002 to june 2004); PRI 3.1: Coeurs de piles a combustible a electrolyte membrane (Co-PACEM), rapport final (juillet 2002 a juin 2004)

    Energy Technology Data Exchange (ETDEWEB)

    Lamy, C.

    2004-07-01

    The researches realized in the PRI Co-PACEM aim to improve the operating of the core of the electrolyte membrane fuel cells, at low temperature in order to minimize the high voltage of the electro-chemical reactions, to decrease the cost of the membrane, to improve the properties (conductivity, mechanical and thermal stability...) and to optimize the transport of heat and reactive. The document presents the research programs. (A.L.B.)

  20. Neki problemi pri prevođenju moderne poezije promatrani kroz teoriju konceptualne integracije

    Directory of Open Access Journals (Sweden)

    Sanja Cimer

    2011-12-01

    Full Text Available Straußeneimondaber ich finde nichts mehrnichts mehr an Buchstaben im Wortmache so ähnlichwie Luftgang ohne Seiles fällt nichts mehraber nichts ist eben auchZaungrenzeund LebenMittelstelzengangder Strauß legt seine Eier in den Himmelfast Massenproduktionkugelrunde Stundenmit Haut auf wirren ÜberzugHände greifen leerwenn nicht duaber das kann nicht –Angsttauchen mit Höhengangund die Hand als Schalewer fängt, – verliert!Mjesec od nojevog jajetaali nema ničeg višeničeg više u slovima riječičinim sličnokao hod po zraku bez konopcaništa više ne padaali i ništa jestgranica od ogradei životsredinom na štulamanoj liježe svoja jaja u nebogotovo masovna proizvodnjasati okrugli poput loptes kožom na neurednoj presvlaciruke posežu u praznoako nisi tiali to ne može –uron u strah s letom u visinei ruka poput ljusketko ulovi, – izgubi!Prevođenje poezije oduvijek se smatralo osobitom temom unutar ionako složenog područja književnog prevođenja. Budući da poezija predstavlja književni oblik u kojem su sadržaj i forma nerazdvojno povezani, jasno je zašto ona predstavlja najzahtjevniji oblik prevoditeljske aktivnosti. Problematičnu točku pri prevođenju poezije predstavlja činjenica da ona daje izrazito “zgusnutu” i kompaktnu formu te da jezik poezije uglavnom počiva na konotacijama, a ne na denotacijama. Noviji pristupi prevođenju prepoznaju da su nekadašnja protivljenja prevođenju poezije, to jest isticanja njezine neprevodivosti, zapravo bila usmjerena na nemogućnost potpunog prenošenja svih aspekata izvornog poetskog djela u ciljni jezik i njegovu kulturu i tradiciju (neprevodivost poezije isticali su, primjerice, T. S. Eliott: “[poezija je] stalni podsjetnik na sve ono što se može reći samo na jednom jeziku”, Roman Jakobson: “poezija je po definiciji neprevodiva” ili Nabokov: “pjesma ne može biti prevedena, reproducirana ni iznova oblikovana na ciljnom jeziku” (svi navedeni citati te citati

  1. Developmentally regulated expression and complex processing of barley pri-microRNAs

    Directory of Open Access Journals (Sweden)

    Kruszka Katarzyna

    2013-01-01

    Full Text Available Abstract Background MicroRNAs (miRNAs regulate gene expression via mRNA cleavage or translation inhibition. In spite of barley being a cereal of great economic importance, very little data is available concerning its miRNA biogenesis. There are 69 barley miRNA and 67 pre-miRNA sequences available in the miRBase (release 19. However, no barley pri-miRNA and MIR gene structures have been shown experimentally. In the present paper, we examine the biogenesis of selected barley miRNAs and the developmental regulation of their pri-miRNA processing to learn more about miRNA maturation in barely. Results To investigate the organization of barley microRNA genes, nine microRNAs - 156g, 159b, 166n, 168a-5p/168a-3p, 171e, 397b-3p, 1120, and 1126 - were selected. Two of the studied miRNAs originate from one MIR168a-5p/168a-3p gene. The presence of all miRNAs was confirmed using a Northern blot approach. The miRNAs are encoded by genes with diverse organizations, representing mostly independent transcription units with or without introns. The intron-containing miRNA transcripts undergo complex splicing events to generate various spliced isoforms. We identified miRNAs that were encoded within introns of the noncoding genes MIR156g and MIR1126. Interestingly, the intron that encodes miR156g is spliced less efficiently than the intron encoding miR1126 from their specific precursors. miR397b-3p was detected in barley as a most probable functional miRNA, in contrast to rice where it has been identified as a complementary partner miRNA*. In the case of miR168a-5p/168a-3p, we found the generation of stable, mature molecules from both pre-miRNA arms, confirming evolutionary conservation of the stability of both species, as shown in rice and maize. We suggest that miR1120, located within the 3′ UTR of a protein-coding gene and described as a functional miRNA in wheat, may represent a siRNA generated from a mariner-like transposable element. Conclusions Seven of the

  2. ¿Por qué perdió el PRI en Yucatán? Las transiciones de este año en bastiones priístas, caída de una imagen distorsionada

    Directory of Open Access Journals (Sweden)

    Lic. Fernando Pacheco Bailón

    2001-01-01

    Full Text Available El pasado domingo 27 de mayo, a eso de las 5:30 de la tarde, los mexicanos nos enteramos a través de los medios de comunicación de televisión abierta y pagada de la ventaja que tenía el candidato a la gubernatura de Yucatán, a través de la coalición PAN, PRD, PVEM, PT, Patricio Patrón Laviada, con respecto al candidato del PRI, Orlando Paredes Lara. Más tarde, de aquella llamada telefónica que hiciera el presidente Vicente Fox para felicitar al candidato que aventajaba al del tricolor, al hacer referencia a las encuestas de salida llevadas a cabo por empresas como Consulta Mitovsky, Garo y otras más. Hay muchas metodologías para poder analizar procesos electorales, así como distintas formas de abordar el problema del por qué perdió el PRI en Yucatán. Para efectos de estudio se planteará las condiciones preelectorales que se dieron, el propio momento electoral del pasado 27 de mayo, así como la visión futura de PRI como organización política en tiempos transitorios.

  3. Vartotojų elgsenos veiksnių įtaka sprendimo pirkti priėmimo procesui

    OpenAIRE

    Jakimavičiūtė, Judita

    2013-01-01

    Magistro baigiamajame darbe išanalizuota ir įvertinta vartotojų elgsenos veiksnių įtaka sprendimo pirkti priėmimo procese, iškeltos vartotojų elgsenos problemos, susiję su vartotojo sprendimu pirkti bei pateikti siūlymai, kaip šias problemas spręsti. Pirmoje darbo dalyje teoriniu aspektu tiriama vartotojų elgsenos samprata, pateikiamos skirtingos Lietuvos bei užsienio autorių nuomonės apie vidinių ir išorinių veiksnių įtaką vartotojų elgsenai bei vartotojų sprendimo priėmimo procesui. Antroje...

  4. Izvedljivost testa stoje na eni nogi na pritiskovni plošči pri dejavnih starejših

    OpenAIRE

    Podvratnik, Jerica

    2018-01-01

    Uvod: Ravnotežje je potrebno za vzdrževanje stabilnega položaja med gibanjem, pri prehodih v različne položaje in med izvajanjem vsakodnevnih dejavnosti. Med teste za ocenjevanje sistemov ravnotežja spada modificiran test senzorične interakcije. S postopkom stabilometrije se s pomočjo pritiskovne plošče zabeleži gibanje središča pritiska. Za uporabno meritev je potrebno, da preiskovanec vzdržuje položaj vsaj 30 sekund. Namen: Z meritvami časa in gibanja središča pritiska pri testu stoje na en...

  5. Vloga medicinske sestre pri nefarmakološki obravnavi otrok in mladostnikov z motnjo pozornosti s hiperaktivnostjo

    OpenAIRE

    Močnik, Anja

    2017-01-01

    Uvod: Motnja pozornosti s hiperaktivnostjo spada v skupino vedenjskih in čustvenih motenj. Odkrita je pri približno 3 do 5 % šoloobveznih otrok. Trije osnovni simptomi so pomanjkljiva in zlahka odvrnljiva pozornost, impulzivnost in hiperaktivnost. Med dejavnike nastanka štejemo biokemične, genetske in nevrološke, diagnosticiranje pa poteka na podlagi simptomov. Kompleksnost problema zahteva celosten pristop, zavračanje farmakološkega zdravljenja s strani nekaterih posameznikov pa nas spodbuja...

  6. mirEX: a platform for comparative exploration of plant pri-miRNA expression data.

    Science.gov (United States)

    Bielewicz, Dawid; Dolata, Jakub; Zielezinski, Andrzej; Alaba, Sylwia; Szarzynska, Bogna; Szczesniak, Michal W; Jarmolowski, Artur; Szweykowska-Kulinska, Zofia; Karlowski, Wojciech M

    2012-01-01

    mirEX is a comprehensive platform for comparative analysis of primary microRNA expression data. RT-qPCR-based gene expression profiles are stored in a universal and expandable database scheme and wrapped by an intuitive user-friendly interface. A new way of accessing gene expression data in mirEX includes a simple mouse operated querying system and dynamic graphs for data mining analyses. In contrast to other publicly available databases, the mirEX interface allows a simultaneous comparison of expression levels between various microRNA genes in diverse organs and developmental stages. Currently, mirEX integrates information about the expression profile of 190 Arabidopsis thaliana pri-miRNAs in seven different developmental stages: seeds, seedlings and various organs of mature plants. Additionally, by providing RNA structural models, publicly available deep sequencing results, experimental procedure details and careful selection of auxiliary data in the form of web links, mirEX can function as a one-stop solution for Arabidopsis microRNA information. A web-based mirEX interface can be accessed at http://bioinfo.amu.edu.pl/mirex.

  7. Neutron Spectra in H{sub 2}O, D{sub 2}O, BeO and CH{sub 2}; Spectres de Neutrons dans H{sub 2}O, D{sub 2}O, BeO et CH{sub 2}; Spektry nejtronov v H{sub 2}O, D{sub 2}O, BeO i CH{sub 2}; Espectros Neutronicos en H{sub 2}O, D{sub 2}O, BeO y CH{sub 2}

    Energy Technology Data Exchange (ETDEWEB)

    Neill, J. M.; Young, J. C.; Trimble, G. D.; Beyster, J. R. [General Atomic Division of General Dynamics Corporation, John Jay Hopkins Laboratory for Pure and Applied Science, San Diego, CA (United States)

    1965-08-15

    'noj teploemkosti dlja VeO.' Pri jetih izmerenijah nabljudalsja znachitel'nyj Breggovskij zahvat nejtronov nizkih energij. (author)

  8. Primerjava učinkovitosti metode mentorstva in koučinga pri delu z brezposelno osebo

    OpenAIRE

    Jagodnik, Sabina

    2017-01-01

    Magistrsko delo se osredotoča na primerjavo rabe mentorstva in koučinga pri delu z brezposelno osebo z namenom uspešnega nastopa na trgu dela. Primerjava je izpeljana na podlagi treh izpeljanih procesov koučinga ter dveh procesov mentorstva. Preko uporabe metode participativnega akcijskega raziskovanja odgovarja na vprašanja, katera metoda je primernejša glede na potrebe brezposelne osebe za uspešen nastop na trgu dela, njene izkušnje, obstoječa znanja in veščine, katere so prednosti in slabo...

  9. Uporaba JavaEE mikrostoritev pri razvoju celovite rešitve za upravljanje s spletnimi oglasi

    OpenAIRE

    ANDREJC, GAŠPER

    2017-01-01

    Diplomska naloga govori o procesu razvijanja celovite rešitve za sledenje in upravljanje s spletnimi oglasi, kot pomoč uporabniku pri nakupu želenega izdelka. Končni izdelek diplomske naloge je rešitev, ki je sestavljena iz spletne aplikacije, mobilne aplikacije, razširitve v spletnem brskalniku ter zalednega sistema. Diploma poleg idejne zasnove predstavlja tudi uporabo JavaEE mikrostoritev in ostalih tehnologij ter argumentira, zakaj so izbrani okvirji najprimernejši za takšno rešitev. Cilj...

  10. Povezanost barv in čustev pri učencih v 4. razredu osnovne šole

    OpenAIRE

    Kolar, Rebeka

    2012-01-01

    V magistrski nalogi se dotikamo področja barv, ki imajo lahko močan učinek na človeško telo in emocije. Že kot otroci uporabljamo barve tako v domačem okolju kot šoli. Po mnenju strokovnjakov naj bi ravno uporaba posameznih barv razodevala otrokovo emocionalno življenje. Pri tem je pomembno poudariti, da se barvno izražanje otrok skozi njihov razvoj spreminja, nadgrajuje, spreminja se otrokova uporaba in odnos do barv. Raziskave, ki so bile opravljene na tem področju, kažejo, da lahko ravno n...

  11. Pravna razmerja pri pogodbi o nepremičninskem posredovanju (primerjalno pravna ureditev po slovenskem in avstrijskem pravu)

    OpenAIRE

    Koser Dolenc, Martina

    2016-01-01

    Magistrska naloga celovito analizira pravna razmerja pri pogodbi o nepremičniskem posredovanju po slovenskem in avstrijskem pravu. Poudarek je v podrobni predstavitvi in opisu pravic in obveznosti strank, ki izhajajo iz posredniške pogodbe. V Sloveniji je posredniška pogodba urejena v Obligacijskem zakoniku (OZ) in sicer v členih od 837. do 850. Posredniška pogodba je dvostranska obvezna, odplačna, neoblična pogodba. Pravna pravila v zvezi s posredniško pogodbo po OZ so večinoma dispoziti...

  12. Visible Light Excited Catalysis and Reusability Performances of TiO2@Pr:Y2SiO5 Upconversion Materials

    Directory of Open Access Journals (Sweden)

    Yan Jiao

    2017-01-01

    Full Text Available To get high efficiency photodegradation on pollutants under visible light, Pr(III doped Y2SiO5 upconversion materials and anatase TiO2 nanofilm coated Pr:Y2SiO5 composite have been prepared by using a sol-gel method. XRD and SEM test results indicated that TiO2 nanofilm was well coated on Pr:Y2SiO5 to form TiO2@Pr:Y2SiO5 composite particles with the sizes of 0.5–1.0 μm. To avoid secondary pollution resulting from incomplete recovery of catalyst particles, TiO2@Pr:Y2SiO5 was loaded on the glass fiber filters by using a dip-coating method. It is found that the catalyst particles were embedded into the carrier firmly, even after having been reused for 6 times. The luminescence intensities of TiO2@Pr:Y2SiO5 were getting down sharply with the coating contents of TiO2 increased, which was attributed to the adsorption of the luminescence by the TiO2 film in situ. As a result, TiO2@Pr:Y2SiO5 with 4% TiO2, which presented lowest luminescence intensity, showed the highest efficiency on the photodegradation of nitrobenzene wastewater. The catalysts loaded on glass fiber filters showed excellent reusability on the photodegradation of nitrobenzene and presented a photodegradation rate of 95% at the first time and up to 75.9% even after 6 times of reusing by the treatment time of 12 h.

  13. Možnosti prihrankov električne energije pri cestni razsvetljavi, ki se prilagaja količini prometa

    OpenAIRE

    BAVČAR, JERNEJ

    2018-01-01

    V diplomskem delu sem predstavil način in predlog, kako zmanjšati stroške porabe električne energije in svetlobno onesnaževanje z javno razsvetljavo. Pri analizi podatkov sem si pomagal s programom MATLAB. Dobljene vrednosti sem nato obdelal v programskem orodju MS Excel. Na začetku najprej preletim zgodovino razvoja umetne razsvetljave in razvoja javne razsvetljave v Sloveniji in svetu. Za tem opišem veljavne zahteve glede javne razsvetljave in elemente, ki so upoštevani pri načrtovanju n...

  14. Child-Adult Relationship Enhancement in Primary Care (PriCARE): A Randomized Trial of a Parent Training for Child Behavior Problems.

    Science.gov (United States)

    Schilling, Samantha; French, Benjamin; Berkowitz, Steven J; Dougherty, Susan L; Scribano, Philip V; Wood, Joanne N

    Child-Adult Relationship Enhancement in Primary Care (PriCARE) is a 6-session group parent training designed to teach positive parenting skills. Our objective was to measure PriCARE's impact on child behavior and parenting attitudes. Parents of children 2 to 6 years old with behavior concerns were randomized to PriCARE (n = 80) or control (n = 40). Child behavior and parenting attitudes were measured at baseline (0 weeks), program completion (9 weeks), and 7 weeks after program completion (16 weeks) using the Eyberg Child Behavior Inventory (ECBI) and the Adult Adolescent Parenting Inventory 2 (AAPI2). Linear regression models compared mean ECBI and AAPI2 change scores from 0 to 16 weeks in the PriCARE and control groups, adjusted for baseline scores. Of those randomized to PriCARE, 43% attended 3 or more sessions. Decreases in mean ECBI intensity and problem scores between 0 and 16 weeks were greater in the PriCARE group, reflecting a larger improvement in behavior problems [intensity: -22 (-29, -16) vs -7 (-17, 2), P = .012; problem: -5 (-7, -4) vs -2 (-4, 0), P = .014]. Scores on 3 of the 5 AAPI2 subscales reflected greater improvements in parenting attitudes in the PriCARE group compared to control in the following areas: empathy toward children's needs [0.82 (0.51, 1.14) vs 0.25 (-0.19, 0.70), P = .04], corporal punishment [0.22 (0.00, 0.45) vs -0.30 (-0.61, 0.02), P = .009], and power and independence [0.37 (-0.02, 0.76) vs -0.64 (-1.19, -0.09), P = .003]. PriCARE shows promise in improving parent-reported child-behavior problems in preschool-aged children and increasing positive parenting attitudes. Copyright © 2016 Academic Pediatric Association. Published by Elsevier Inc. All rights reserved.

  15. Diurnal and Seasonal Responses of High Frequency Chlorophyll Fluorescence and PRI Measurements to Abiotic Stress in Almonds

    Science.gov (United States)

    Bambach-Ortiz, N. E.; Paw U, K. T.

    2016-12-01

    Plants have evolved to efficiently utilize light to synthesize energy-rich carbon compounds, and at the same time, dissipate absorbed but excessive photon that would otherwise transfer excitation energy to potentially toxic reactive oxygen species (ROS). Nevertheless, even the most rapidly growing plants with the highest rates of photosynthesis only utilize about half of the light their leaves absorb during the hours of peak irradiance in sun-exposed habitats. Usually, that daily peak of irradiance coincides with high temperature and a high vapor pressure deficit, which are conditions related to plant stomata closure. Consequently, specially in water stressed environments, plants need to have mechanisms to dissipate most of absorbed photons. Plants avoid photo-oxidative damage of the photosynthetic apparatus due to the formation of ROS under excess light using different mechanisms in order to either lower the amount of ROS formation or detoxify already formed ROS. Photoinhibition is defined as a reduction in photosynthetic activity due largely to a sustained reduction in the photochemical efficiency of Photosystem II (PSII), which can be assessed by monitoring Chlorophyll a fluorescence (ChlF). Alternatively, monitoring abiotic stress effects upon photosynthetic activity and photoinhibition may be possible using high frequency spectral reflectance sensors. We aim to find the potential relationships between high frequency PRI and ChlF as indicators of photoinhibition and permanent photodamage at a seasonal scale. Preliminary results show that PRI responses are sensitive to photoinhibition, but provide a poor representation of permanent photodamage observed at a seasonal scale.

  16. Angular distributions of fast neutrons scattered by Al, Si, P, S and Zn; Distributions angulaires des neutrons rapides diffuses par Al, Si, P, S et Zn; Usloviya raspredeleniya bystrykh nejtronov, rasseyannykh alyuminiem, kremniem, fosforom i tsinkom; Distribuciones angulares de neutrones rapidos dispersados por Al, Si, P, S y Zn

    Energy Technology Data Exchange (ETDEWEB)

    Tstjkaija, K; Tanaka, S; Maeuyama, M; Tomita, Y [Japan Atomic Energy Research Institute, Tokai-Mtjea (Japan)

    1962-03-15

    Differential scattering cross-sections of Al, Si, P, S and Zn for fast neutrons have been measured in an energy range of 3.4 to 4.6 MeV by using the time-of-flight method. Angular distributions of the inelastically scattered neutrons are nearly isotropic in all cases. These results are discussed on the basis of the Hauser-Feshbach theory. (author) [French] Les sections efficaces differentielles de diffusion de Al, Si, P, S et Zn pour des neutrons rapides ont ete mesurees dans la gamme d'energies de 3,4 a 4,6 MeV, en employant la methode du temps de vol. Les distributions angulaires des neutrons diffuses inelastiquement sont presque isotropes dans tous les cas. Les auteurs analysent ces resultats en se fondant sur la theorie de Hauser-Feshbach. (author) [Spanish] Los autores han medido por el metodo del tiempo de vuelo las secciones eficaces diferenciales de dispersion del Al, Si, P, S y Zn para neutrones rapidos de energia comprendida entre 3,4 y 4,6 MeV. Las distribuciones angulares de los neutrones dispersados inelasticamente son casi isotropicas en todos los casos. Los autores analizan los resultados obtenidos basandose en la teoria de Hauser-Feshbach . (author) [Russian] Differentsial'no e sechenie rasseyaniya alyuminiya, kremniya, fosfora, sery i tsinka dlya bystrykh nejtronov izmereno v diapazone ehnergii ot 3,4 do 4,6 Megaehlektronvol't ispol'zovanie m metoda vremeni proleta. Uglovye raspredeleniya neuprugo rasseyannykh nejtronov yavlyayutsya pochti vo vsekh sluchayakh izotropnymi. Jeti rezul'taty obsuzhdayutsya na osnove teorii Hauzera-Feshbakha. (author)

  17. Nuclear geophysics in prospecting for ore and coal deposits; Geophysique nucleaire et prospection des gisements de charbon et autres mineraux; Yadernaya geofizika pri razvedke rudnykh i ugol'nykh mestorozhdenij; Geofisica nuclear u prospeccion de yacimientos de carbon y otros minerales

    Energy Technology Data Exchange (ETDEWEB)

    Bulashevich, Yu P; Voskobojnikov, G M; Muzyukin, L V

    1962-01-15

    captura de neutrones termicos del boro hace posible determinar estratos boriferos en la zona del sondeo empleando los metodos E.G.N. y E.N.N. La influencia del agua se elimina mediante sondeos inversos. Este metodo, asi como otros sistemas de exploracion por activacion neutronica, han sido aplicados tambien en diversos yacimientos de cobre, manganeso, aluminio y otros minerales. La exploracion por activacion continua esta indicada cuando el periodo de semi [Russian] Na rudnykh i ugol'nykh mestorozhdeniyakh metody yadernoj geofiziki primenyayutsya glavnym obrazom pri karotazhe razvedochnykh skvazhin. Na rudnykh i ugol'nykh mestorozhdeniyakh Sovetskogo Soyuza nakhodyat shirokoe proizvodstvennoe primenenie sleduyushchie vidy radioaktivnogo ili yadernogo karotazha (RK): plotnostnoj ili gamma-gamma karotazh (GGK) s istochnikom izlucheniya Co{sup 60}, selektivnyj gamma-gamma karotazh (SGGK) s istochnikom myagkogo izlucheniya tipa S75, nejtron-nejtronnyj karotazh (NNK) i nejtronnyj gamma karotazh s Ro-Ve istochnikom nejtronov, akti- vatsionnyj, v chastnosti nepreryvnyj, karotazh s tem zhe istochnikom, a takzhe foto-nej- tronnyj karotazh s gamma-izluchatelem Sb{sup 124}. Osnovnaya zadacha RK na rudnykh mestorozhdeniyakh - vydelenie rudnykh zon v razreze skvazhin, chto sokrashchaet intervaly oprobovaniya, i orientirovochnaya otsenka soderzhaniya poleznogo komponenta in situ. Na ugol'nykh mestorozhdeniyakh RK reshaet zadachu opredeleniya glubiny zaleganiya, moshchnosti i stroeniya ugol'nykh plastov. ' Metody GGK i SGGK osnovany na registratsii rasseyannogo gamma-izlucheniya istochnika. Pri dostatochnoj zhestkosti izlucheniya istochnika i slaboj chuvstvitel'nosti indikatora intensivnost' rasseyannogo izlucheniya zavisit tol'ko ot plotnosti porody i rasstoyaniya mezhdu istochnikom i indikatorom. EHto sluchaj GGK, kotorym ugol'nye plasty vydelyayutsya po maksimumam rasseyannogo izlucheniya. V SGGK sushchestvenna registratsiya myagkoj chasti spektra rasseyannogo izlucheniya

  18. Arc in a Gas Flowing Through a Magnetic Field; Duga v potoke gaza pri nalichii magnitnogo polya

    Energy Technology Data Exchange (ETDEWEB)

    Baranov, V. Ju.; Vasil' eva, I. A.; Ul' janov, K. N. [Vsesojuznyj Jelektrotehnicheskij Institut Im.V.I. Lenina, Moskva, SSSR (Russian Federation)

    1966-10-15

    The authors have previously shown that ad.c. electric arc can be used in the pre-ionizer of a non-equilibrium MHD generator. The pre-ionizer must be located immediately before the duct inlet, where the magnetic field is fairly strong and may have a substantial effect on the current in the gas flow. In the present paper they consider the behaviour of an electric arc in a gas flowing through a magnetic field. The experiments were carried out with argon, using the apparatus described in Ref. [1] of the paper. The flow was set up in a closed glass loop by means of an electromagnetic accelerator (MHD motor). By suitably treating and adjusting the loop it was possible to conduct the investigations in spectrally pure argon. The pressure varied between 1 and 100 mm Hg, and the flow velocity V{sub 0}{<=} 10{sup 4} cm/sec. The magnetic field in the accelerator (B{sub 1}) and near the arc (B{sub 2}) varied between zero and 7 x 10{sup 3} Oe. The spatial distribution of the electron concentration (n{sub e}) and the electron temperature (T{sub e}) were measured using probe and spectrum analysis methods. The gas temperature (T{sub g} ) was measured by the hot wire method and the flow velocity with the help of pitot tubes. Experiments were carried out in both decelerating and accelerating magnetic fields. (author) [Russian] Jelektricheskaja duga postojannogo toka mozhet byt' ispol'zovana v kachestve jelementa predionizatora v neravnovesnom MGDG. Predionizator dolzhen byt' raspolozhen neposredstvenno pered kanalom generatora v oblasti dostatochno sil'nogo magnitnogo polja, kotoroe mozhet sushhestvenno povlijat' na protekanie toka v potoke. Issledovano povedenie jelektricheskoj dugi v potoke pri nalichii magnitnogo polja. Jeksperimenty byli vypolneny v argone na ustanovke, opisannoj v rabote [1] . Potok v zamknutom stekljannom konture sozdavalsja pri pomoshhi jelektromagnitnogo uskoritelja (MGD dvigatelja). Sootvetstvujushhaja obrabotka i trenirovka kontura davala vozmozhnost

  19. Oscilacije nagibnog sklopa oruđa pri opaljenju / Oscillation of elevating group on artillery weapon during firing test

    Directory of Open Access Journals (Sweden)

    Zoran Ristić

    2005-03-01

    Full Text Available U radu su opisane oscilacije nagibnog sklopa artiljerijskog oruđa koje nastaju pri opaljenju. Nagibni sklop prikazanje kao kruto telo sa jednim stepenom slobode kretanja (rotacija u vertikalnoj ravni. Model oscilovanja upoređenje sa eksperimentalnim rezultatima realnog modela oscilovanja oruđa (oscilacije nagibnog sklopa sa više stepeni slobode kretanja. Date su razlike između proračunskog i realnog modela oscilovanja i analiza njihovih parametara. / The oscillation of elevating group on artillery weapon during firing test are described in this paper. The elevation group is represented a rigid body of DOF (rotation in vertical plane. The model oscillation is compared -with the experimental results of real model oscillation (oscillations of elevating group with more degrees of freedom. A difference sizes among simplify and real model oscillation are given, and some of their parameters are analyzed.

  20. NON-GENICULATE CORALLINE ALGAE (CORALLINALES, RHODOPHYTA FROM THE LOWER OLIGOCENE OF POLJŠICA PRI PODNARTU (NORTHERN SLOVENIA

    Directory of Open Access Journals (Sweden)

    LUKA GALE

    2009-03-01

    Full Text Available Despite their increasing importance in sedimentology and palaeoecology, non-geniculate coralline algae remain virtually overlooked in Slovenia. Though these plants are present or even abundant in the Cretaceous and Cainozoic strata, they have never been studied in detail with notable exception of corallines from the Lower Oligocene beds in the area of Gornji Grad. Poljšica pri Podnartu is another locality where Lower Oligocene beds are exposed, considered as equivalent to the former. The studied profile consists of pebbly limestone, mudstone, sandstone and limestone. Limestones contain abundant non-geniculate coralline algae. Nine species from six genera of these corallines have been identified: Lithoporella melobesioides (Foslie Foslie, 1909, Neogoniolithon contii (Mastrorilli Quaranta et al., 2007, Spongites sp., Lithothamnion sp. 1, Lithothamnion sp. 2, Mesophyllum sp. 1, Mesophyllum sp. 2, Mesophyllum sp. 3 and Sporolithon sp. Some of these species are described from Slovenia for the first time. 

  1. VPLIV SPOMINSKEGA TRENINGA NA KRATKOTRAJNI IN DOLGOTRAJNI SPOMIN PRI POSAMEZNIKIH S PRIDOBLJENO MOŽGANSKO POŠKODBO

    OpenAIRE

    Ogrizek, Tjaša

    2015-01-01

    Namen te študije je bil preveriti vpliv spominskega treninga N-back na kratko- in dolgotrajne spominske sposobnosti pri udeležencih s pridobljeno možgansko poškodbo. V ta namen sta se izoblikovali dve hipotezi, in sicer (H1) kratkotrajni spomin udeležencev se bo izboljšal ter (H2) dolgotrajni spomin udeležencev se ne bo spremenil. Udeleženci v študiji so bili trije posamezniki, stari 38, 31 ter 26 let, ki imajo pridobljeno možgansko poškodbo. Metodološki pripomočki, uporabljeni v študiji, so ...

  2. The interaction effects of pri-let-7a-1 rs10739971 with PGC and ERCC6 gene polymorphisms in gastric cancer and atrophic gastritis.

    Directory of Open Access Journals (Sweden)

    Qian Xu

    Full Text Available BACKGROUND: The aim of this study was to investigate the interaction effects of pri-let-7a-1 rs10739971 with pepsinogen C (PGC and excision repair cross complementing group 6 (ERCC6 gene polymorphisms and its association with the risks of gastric cancer and atrophic gastritis. We hoped to identify miRNA polymorphism or a combination of several polymorphisms that could serve as biomarkers for predicting the risk of gastric cancer and its precancerous diseases. METHODS: Sequenom MassARRAY platform method was used to detect polymorphisms of pri-let-7a-1 rs10739971 G → A, PGC rs4711690 C → G, PGC rs6458238 G → A, PGC rs9471643 G → C, and ERCC6 rs1917799 in 471 gastric cancer patients, 645 atrophic gastritis patients and 717 controls. RESULTS: An interaction effect of pri-let-7a-1 rs10739971 polymorphism with ERCC6 rs1917799 polymorphism was observed for the risk of gastric cancer (P interaction = 0.026; and interaction effects of pri-let-7a-1 rs10739971 polymorphism with PGC rs6458238 polymorphism (P interaction = 0.012 and PGC rs9471643 polymorphism (P interaction = 0.039 were observed for the risk of atrophic gastritis. CONCLUSION: The combination of pri-let-7a-1 rs10739971 polymorphism and ERCC6 and PGC polymorphisms could provide a greater prediction potential than a single polymorphism on its own. Large-scale studies and molecular mechanism research are needed to confirm our findings.

  3. Persistent organic pollutants, heavy metals and radioactivity in the urban soil of Priština City, Kosovo and Metohija.

    Science.gov (United States)

    Gulan, Ljiljana; Milenkovic, Biljana; Zeremski, Tijana; Milic, Gordana; Vuckovic, Biljana

    2017-03-01

    Polycyclic aromatic hydrocarbons (PAHs), organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), heavy metals content and radioactivity levels were measured in 27 soil samples collected from Priština, the capital of Kosovo and Metohija. The sixteen PAHs, twelve OCPs and six PCBs congeners were determined by gas chromatography system with mass spectrometry detection. Although the use of PCBs and OCPs was prohibited decades ago residues of those compounds still existed in measurable concentrations in soils of Priština. PAHs were also present in analyzed samples but their mean concentration was significantly lower than mean concentrations of PAHs previously reported in urban areas in the world. The concentrations of heavy metals (As, Cd, Co, Cr, Cu, Mn, Ni, Pb and Zn) were determined by the EDTA extraction protocols, along with their extractable concentrations. The activity concentrations of natural radionuclides ( 226 Ra, 232 Th and 40 K) were determined by gamma spectrometry method. The Shapiro-Wilk normality test found that activity concentrations of natural radionuclides were normally distributed. Radiological risk was estimated through the annual effective dose, gonadal dose equivalent, excess lifetime cancer risk, radium equivalent activity, external and internal hazard indexes. Spearman correlation coefficient was used for analysis of correlations between physicochemical properties, heavy metal contents and radionuclide activity concentrations. Strong positive correlation between 226 Ra and 232 Th was found, as well as among pairs of As-Cd and Co-Mn. Very strong positive correlation (0.838) at the 0.01 significance level was noted for Pb-Zn pair. Strong correlations indicate common occurrence of these elements in the nature, as well as geogenic association. Copyright © 2016 Elsevier Ltd. All rights reserved.

  4. Patterns of Lethality and Absorbed Dose Distributions in Mice for Monoenergetic Neutrons; Letalite et Distribution de la Dose Absorbee chez la Souris pour des Neutrons Monoenergetiques; Letal'nost' i raspredelenie pogloshchennoj dozy pri obluchenii myshej monoehnergeticheskimi neitronami; Letalidad y Distribucion de las Dosis Absorbidas por el Raton para Neutrones Monoenergeticos

    Energy Technology Data Exchange (ETDEWEB)

    Frigerio, N. A.; Jordan, D. L. [Argonne National Laboratory, Argonne, IL (United States)

    1964-03-15

    kontrol' raspredelenija dozy vnutri zhivotnogo. Absoljutnoe izmerenie moshhnosti potoka proizvodilos' s pomoshh'ju schetchika delenija uran-235 i absoljutnogo scheta aktivnosti zolotyh provolok i fol'g, aktivirovannyh v kadmievom pokrytii. Pogloshhenie dozy izmerjalos' s pomoshh'ju mikro-ionizacionnoj kamery i special'no razrabotannogo vysokochuvstvitel'nogo dozimetra FeSO{sub 4}- NH{sub 4}SCN. Otnositel'nye izmerenija doz proizvodilis' s pomoshh'ju ga zo v o go schetchika protonov otdachi Hersta i V10, Lie i scintilljatorov protonov otdachi. Raspredelenie jenergii nejtronov izmerjalos' s pomoshh'ju special'no razrabotannyh B{sup 10} , Ne{sup 3} i L i{sup 6} gazovyh spektrometrov i spektrometrov tverdyh tel. Gamma-izluchenie izmerjalos' s pomoshh'ju Ne/Ag schetnyh kamer. Jeti izmerenija pokazali, chto dolja gamma-luchej sostavljala menee 0,8%, a teplovoe-nadteplovoe izluchenie men'she 0,01% obshhej dozy v radah. Zhivotnyh obluchali dozami so srednim znacheniem v sredinnoj tochke ot 180 do 1200 rad pri jenergii nejtronov ot 396 do 658 {+-}50 kjev dlja ohvata o b lasti N i O-rezonansov. Uroven' i harakter letal'nosti strogo zaviseli ot jenergii nejtronov i, v ravnoj s t e peni, no sam ostojat el'no, - ot raspredelenija dozy. Odnako,nezavisimo ot dozy, jenergii ili raspredelenija dozy, vse te zhe zhivotnye, kotorye vyzhili v techenie 5 dnej, prozhili dalee ne menee 144 dnej i pogibli zatem ot obychnyh dlitel'no dejstvujushhih faktorov. Jeto pokazyvaet, chto monojenergeticheskie bystrye nejtrony bez primesi gamma- ili nadteplovyh izluchenij mogut privodit' pochti bez iskljuchenija k rannej ''kishechnoj smerti''. (author)

  5. The Subcritical Assembly for High-Temperature Use; Assemblage Sous-Critique Pour Emploi a Haute Temperature; K voprosu o podkriticheskoj sborke dlya ispol'zovaniya pri vysokikh temperaturakh; Conjunto Subcritico para Temperatura Elevada

    Energy Technology Data Exchange (ETDEWEB)

    Sakurai, Y.; Sekiya, T.; Suita, T. [Osaka University (Japan); Hishida, H.; Hamada, H.; Nagashima, K. [Sumitomo Atomic Energy Industries Group (Japan)

    1964-04-15

    vysokotemperaturnoj oblasti primenjaetsja gelij. Jeti vysokotemperaturnye gazovye petli proektirujutsja takim obrazom, chto ih mozhno ispol'zovat' dlja issledovanija voprosov neposredstvennogo prevrashhenija atomnoj jenergii v jelektricheskuju. Sborki osnashhajutsja sistemami upravlenija i kontrol'no-izmeritel'nymi sistemami podobno nebol'shim atomnym reaktoram. V nastojashhee vremja izuchaetsja jeksperimental'nyj metod opredelenija laplasiana sistemy i issleduetsja nailuchshaja shema raspolozhenija istochnika impul'snyh nejtronov i detektorov. Dalee, razrabatyvaetsja unikal'nyj metod izmerenija plotnosti potokov nejtronov pri vysokoj temperature. Nakonec, predpolagaetsja izuchit' vopros o vlijanii vysokoj temperatury na parametry reaktora. (author)

  6. Neutron radiation capture; Radiatsionnyj zakhvat nejtronov

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1987-12-31

    For all stable and experimentally studied radionuclides evaluated data are presented on cross sections of thermal neutrons, on resonance integrals and medium neutron cross sections with energy of 30 KeV. Refs, figs and tabs.

  7. Pri-let-7a-1 rs10739971 polymorphism is associated with gastric cancer prognosis and might affect mature let-7a expression

    Directory of Open Access Journals (Sweden)

    Li Y

    2016-07-01

    Full Text Available Ying Li, Qian Xu, Jingwei Liu, Caiyun He, Quan Yuan, Chengzhong Xing, Yuan Yuan Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University, Liaoning Provincial Education Department, Shenyang, People’s Republic of China Abstract: The relationship between the pri-let-7a-1 rs10739971 polymorphism and gastric cancer (GC risk has been reported. However, the role of this polymorphism in the prognosis of GC remains largely elusive. Sequenom MassARRAY platform method and the polymerase chain reaction (PCR-restriction fragment length polymorphism were used to investigate pri-let-7a-1 rs10739971 G→A in 334 GC patients. Real-time PCR detected expression of mature let-7a in serum and tissue. Patients with AA or GA+AA genotypes of the pri-let-7a-1 rs10739971 polymorphism demonstrated significantly longer survival time than those with the wild GG genotype. Stratified analysis indicated that survival time was significantly longer in women with AA or GA+AA genotypes and in Borrmann type I/II patients with GA heterozygote or GA+AA genotypes. AA genotype was more frequent in the lymphatic-metastasis-negative subgroup. Serum mature let-7a expression in healthy people with the GA heterozygote and the GA+AA genotype was higher than in those with the GG genotype, and the difference remained significant in the female healthy subgroup. Pri-let-7a-1 rs10739971 polymorphism might be a biomarker for GC prognosis, especially for female and Borrmann type I/II patients. The pri-let-7a-1 rs10739971 polymorphism might affect serum mature let-7a expression, and partly explain the mechanism of the relationship between the pri-let-7a-1 rs10739971 polymorphism and GC survival. Keywords: miRNA, let-7a, polymorphism, gastric cancer, prognosis, expression

  8. La mort d’un couple : prière(s) et vie publiques Death of a couple: prayer(s) and public life

    OpenAIRE

    Mathieu Touzeil-Divina

    2009-01-01

    Si, avant la Loi du 5 décembre 1905, les Eglises et l’Etat concrétisaient matériellement leurs liens étroits par des rites officiels nommés prières publiques, ceux-ci sont censés avoir été supprimés depuis. C’est l’histoire de cette suppression (après en avoir retenu une définition) qui est ici envisagée à travers trois secteurs cardinaux de l’action administrative : la vie universitaire, parlementaire et judiciaire. Dans ces trois hypothèses les prières publiques ont été supprimées de façon ...

  9. Identification and analysis of genetic variations in pri-miRNAs expressed specifically or at a high level in sheep skeletal muscle.

    Directory of Open Access Journals (Sweden)

    Wei Zhang

    Full Text Available MicroRNAs (miRNAs are key regulators in miRNA-mediated gene regulatory networks and play important roles in many biological processes, such as growth and development of mammals. In this study, we used microarrays to detect 261 miRNAs that are expressed in sheep skeletal muscle. We found 22 miRNAs that showed high levels of expression and equated to 89% of the total miRNA. Genetic variations in these 22 pri-miRNAs were further investigated using polymerase chain reaction-single strand conformation polymorphism (PCR-SSCP and sequencing. A total of 49 genetic variations, which included 41 single nucleotide polymorphisms (SNPs and 8 deletions/insertions, were identified in four sheep breeds. Three variations were further researched in a larger sample set, including five sheep breeds with different meat production performances. We found that the genotype and allele frequencies of the CCC deletion/insertion in pri-miR-133a were significantly related to the sheep meat production trait. Finally, cell assays and quantitative reverse transcription PCR (qRT-PCR were employed to investigate the effect of pri-miRNA genetic variation on the miRNA biogenesis process. The results confirmed that genetic variations can influence miRNA biogenesis and increase or decrease the levels of mature miRNAs, in accordance with the energy and stability change of hair-pin secondary structures. Our findings will help to further the understanding of the functions of genetic variations in sheep pri-miRNAs in skeletal muscle growth and development.

  10. Replication restart in UV-irradiated Escherichia coli involving pols II, III, V, PriA, RecA and RecFOR proteins.

    Science.gov (United States)

    Rangarajan, Savithri; Woodgate, Roger; Goodman, Myron F

    2002-02-01

    In Escherichia coli, UV-irradiated cells resume DNA synthesis after a transient inhibition by a process called replication restart. To elucidate the role of several key proteins involved in this process, we have analysed the time dependence of replication restart in strains carrying a combination of mutations in lexA, recA, polB (pol II), umuDC (pol V), priA, dnaC, recF, recO or recR. We find that both pol II and the origin-independent primosome-assembling function of PriA are essential for the immediate recovery of DNA synthesis after UV irradiation. In their absence, translesion replication or 'replication readthrough' occurs approximately 50 min after UV and is pol V-dependent. In a wild-type, lexA+ background, mutations in recF, recO or recR block both pathways. Similar results were obtained with a lexA(Def) recF strain. However, lexA(Def) recO or lexA(Def) recR strains, although unable to facilitate PriA-pol II-dependent restart, were able to perform pol V-dependent readthrough. The defects in restart attributed to mutations in recF, recO or recR were suppressed in a recA730 lexA(Def) strain expressing constitutively activated RecA (RecA*). Our data suggest that in a wild-type background, RecF, O and R are important for the induction of the SOS response and the formation of RecA*-dependent recombination intermediates necessary for PriA/Pol II-dependent replication restart. In con-trast, only RecF is required for the activation of RecA that leads to the formation of pol V (UmuD'2C) and facilitates replication readthrough.

  11. Endocrine and Metabolic Effects of Adipose Tissue in Children and Adolescents / Endokrina in Presnovna Funkcija Maščobnega Tkiva Pri Otrocih in Mladostnikih

    Directory of Open Access Journals (Sweden)

    Kotnik Primož

    2015-03-01

    Full Text Available Maščobno tkivo ima vlogo pri številnih endokrinih in presnovnih procesih. Lepin je bil med prvimi odkritimi dejavniki iz maščobnega tkiva, ki delujejo avto-, para- in endokrino. Od opredelitve leptina so odkrili še številne druge dejavnike, od katerih se nekateri izločajo iz maščobnih celic, nekateri pa iz drugih celic maščobnega tkiva.

  12. Cyrillic alphabet as the designation of national identity among students of University of Priština with temporary head office in Kosovska Mitrovica

    Directory of Open Access Journals (Sweden)

    Miketić Sanja D.

    2016-01-01

    Full Text Available The relationship between culture and nationality and in that sense - national identity of a particular community - is a known thing for a long time. Nationality is usually strongly connected to culture. We will only mention few of their joint characteristics: language, religion, art, customs, tradition etc. In this article special attention will be paid to one of the features of national identity - language - and we will focus on the usage of Cyrillic alphabet of our target group (students of University of Priština, with temporary head office in Kosovska Mitrovica. The study consists of two smaller researches. In the first part we explored reactions of students at University of Priština and we assumed that they will have different reactions towards Cyrillic alphabet and Latin alphabet used as stimuli-words comparing to pupils of Belgrade and Zrenjanin high schools and students of University of Belgrade, Novi Sad and Niš presented in The associative dictionary of Serbian language (Asocjativni rečnik srpskog jezika, 2005. In the second part we tried to find out if our informants prefer the usage of Cyrillic or Latin alphabet, and which one they find better in the esthetic sense. We compared attitudes of students who enroll University of Priština to attitudes of students who enroll University of Belgrade and differences between their attitudes. With both researches we wanted to see if there are formed verbal stereotypes with positive or negative connotation, and what are the attitudes on using Cyrillic alphabet among students in the age of expansion of Latin alphabet. We concluded that Cyrillic alphabet is more used and valued at University of Priština than in the rest of Republic of Serbia and the reason for that might be the stronger sense of national identity among these students.

  13. Annotating and quantifying pri-miRNA transcripts using RNA-Seq data of wild type and serrate-1 globular stage embryos of Arabidopsis thaliana

    Directory of Open Access Journals (Sweden)

    Daniel Lepe-Soltero

    2017-12-01

    Full Text Available The genome annotation for the model plant Arabidopsis thaliana does not include the primary transcripts from which MIRNAs are processed. Here we present and analyze the raw mRNA sequencing data from wild type and serrate-1 globular stage embryos of A. thaliana, ecotype Columbia. Because SERRATE is required for pri-miRNA processing, these precursors accumulate in serrate-1 mutants, facilitating their detection using standard RNA-Seq protocols. We first use the mapping of the RNA-Seq reads to the reference genome to annotate the potential primary transcripts of MIRNAs expressed in the embryo. We then quantify these pri-miRNAs in wild type and serrate-1 mutants. Finally, we use differential expression analysis to determine which are up-regulated in serrate-1 compared to wild type, to select the best candidates for bona fide pri-miRNAs expressed in the globular stage embryos. In addition, we analyze a previously published RNA-Seq dataset of wild type and dicer-like 1 mutant embryos at the globular stage [1]. Our data are interpreted and discussed in a separate article [2].

  14. Annotating and quantifying pri-miRNA transcripts using RNA-Seq data of wild type and serrate-1 globular stage embryos of Arabidopsis thaliana.

    Science.gov (United States)

    Lepe-Soltero, Daniel; Armenta-Medina, Alma; Xiang, Daoquan; Datla, Raju; Gillmor, C Stewart; Abreu-Goodger, Cei

    2017-12-01

    The genome annotation for the model plant Arabidopsis thaliana does not include the primary transcripts from which MIRNAs are processed. Here we present and analyze the raw mRNA sequencing data from wild type and serrate-1 globular stage embryos of A. thaliana , ecotype Columbia. Because SERRATE is required for pri-miRNA processing, these precursors accumulate in serrate-1 mutants, facilitating their detection using standard RNA-Seq protocols. We first use the mapping of the RNA-Seq reads to the reference genome to annotate the potential primary transcripts of MIRNAs expressed in the embryo. We then quantify these pri-miRNAs in wild type and serrate-1 mutants. Finally, we use differential expression analysis to determine which are up-regulated in serrate-1 compared to wild type, to select the best candidates for bona fide pri-miRNAs expressed in the globular stage embryos. In addition, we analyze a previously published RNA-Seq dataset of wild type and dicer-like 1 mutant embryos at the globular stage [1]. Our data are interpreted and discussed in a separate article [2].

  15. A Privacy Protection User Authentication and Key Agreement Scheme Tailored for the Internet of Things Environment: PriAuth

    Directory of Open Access Journals (Sweden)

    Yuwen Chen

    2017-01-01

    Full Text Available In a wearable sensor-based deployment, sensors are placed over the patient to monitor their body health parameters. Continuous physiological information monitored by wearable sensors helps doctors have a better diagnostic and a suitable treatment. When doctors want to access the patient’s sensor data remotely via network, the patient will authenticate the identity of the doctor first, and then they will negotiate a key for further communication. Many lightweight schemes have been proposed to enable a mutual authentication and key establishment between the two parties with the help of a gateway node, but most of these schemes cannot enable identity confidentiality. Besides, the shared key is also known by the gateway, which means the patient’s sensor data could be leaked to the gateway. In PriAuth, identities are encrypted to guarantee confidentiality. Additionally, Elliptic Curve Diffie–Hellman (ECDH key exchange protocol has been adopted to ensure the secrecy of the key, avoiding the gateway access to it. Besides, only hash and XOR computations are adopted because of the computability and power constraints of the wearable sensors. The proposed scheme has been validated by BAN logic and AVISPA, and the results show the scheme has been proven as secure.

  16. Carcinogenesis by Fast Neutrons Relative to X-Rays in Mice; Carcinogenese chez les Souris sous l'Effet des Neutrons Rapides et des Rayons X; Sravnitel'naya chastota vozniknoveniya rakovykh opukholej u myshej pri obluchenii bystrymi nejtronami i rentgenovskimi luchami; Accion Carcinogenica Comparada de los Neutrones Rapidos y de los Rayos X en el Raton

    Energy Technology Data Exchange (ETDEWEB)

    Cole, L. J.; Nowell, P. C. [Division of Biological and Medical Sciences, U.S. Naval Radiological Defense Laboratory, San Francisco, CA (United States); Department of Pathology, School of Medicine, University of Pennsylvania, Philadelphia, PA (United States)

    1964-05-15

    jetih novoobrazovanij pri primenenii nejtronnogo obluchenija i ispol'zovanii specificheskih proliferativnyh raz drazhitelej. Dannye pokazyvajut, chto potencial'nyj faktor so stavlja et priblizitel'no 2 dlja nejtronov delenija otnositel'no rentgenovskih luchej s pikovym naprjazheniem 250 kv dlja vozniknovenija opuholej pochek u myshej. Chto kasaetsja razvitija limfomn, to u myshej, podvergnutyh nejtronnomu oblucheniju, chastota ih vozniknovenija okazalas. (author)

  17. In Vivo and Air Dosimetry of Fission-Spectrum Neutrons; Dosimetrie In Vivo et dans l'Air du Spectre des Neutrons de Fission; Dozimetriya v vozdukhe i dozimetriya In Vivo nejtronov spektra deleniya; Dosimetria In Vivo y en el Aire de Neutrones de un Espectro de Fision

    Energy Technology Data Exchange (ETDEWEB)

    Mobley, T. S.; Engel, R. E.; Godden, W. R. [Kirtland Airforce Base, New Mexico (United States); Penikas, V. T. [AFIT, Wright-Patterson Air Force Base, Ohio, with Duty Station at University of Rochester, School of Medicine and Dentistry, Rochester, NY (United States)

    1964-03-15

    rumenotomfa empleada. La dosis neutronica se determina mediante laminas de umbral. Para medir el flujo integrado de neutrones termicos, se utilizaron las laminas de oro y de oro recubierto de cadmio; para el flujo integrado de neutrones rapidos, se recurrio al plutonio-239, al neptunio-237, al uranio-238 y al azufre-32; la dosis gamma se determino con varillas de vidrio radiofotoluminiscentes. Las ovejas fueron sometidas a exposiciones laterales, a una distancia de linea media de 200 o 175 cm del centro del conjunto critico. La dosis neutronica medida en el aire, a 200 cm, fue 161 {+-} 5 ,5 rad; y a 175 cm, fue 242 {+-} 16,6 rad. A las mismas distancias, la dosis gamma fue, respectivamente, 33 {+-} 2,4 y 42 {+-}2,5 r. Las dosis de entrada y salida, asi como la dosis recibida por el aposito interno varian con el ascenso de temperatura, la distancia al reactor, la orientacion de las laminas con respecto a este y el espesor y composicion de los tejidos atenuadores. (author) [Russian] Dlja opredelenija glubinnoj dozy vo vremja obluchenija nejtronami spektra delenija na ovcah razrabotan metod dozimetrii nejtronov in vivo. Dlja issledovanij ispol'zovalas impul'snaja reaktornaja sborka podobnaja sborke Godiva I I Los-Alamosskoj nauchnoj laboratorii. Reak tor rabotal v impul'snom rezhime, proizvodja impul'sy prodolzhitel'nost'ju 50 mksek shirinoj v polovinu vysoty maksimal'nogo impul'sa, prichem temperatura toplivnogo materiala povyshalas' primerno do 100 Degree-Sign S. Podkozhnyj detektor soderzhal kadmij, pokrytyj zolotoj fol'goj, prostuju zolotuju fol'gu i tri stekljannyh termoljuminescentnyh sterzhnevyh dozimetra v stekljannom kontejnere, vylozhennom litiem i svincom. Jeti detektory pomeshhalis' v podkozhnoj tkani po obeim storonam tela dlja obnaruzhenija integrirovannogo potoka teplovyh nejtronov i gamma-dozy, tak kak potoki nejtronov napravljalis' sboku. Detektory dlja brjushnoj polosti byli podgotovleny takim zhe obrazom, kak i dlja podkozhnogo vvedenija, i sostojali iz

  18. Plasma Containment and Stability in a Megajoule Theta-Pinch Experiment; Confinement et Stabilite du Plasma dans un Dispositif a Striction Azimutale de un Megajoule; Uderzhanie i ustojchivost' plazmy pri provedenii ehksperimenta s' megadzhoulevym teta-pinchem; Confinamiento y Estabilidad del Plasma en un Experimento de Estriccion Azimutal de 1 MJ

    Energy Technology Data Exchange (ETDEWEB)

    Bodin, H. A.B.; Green, T. S.; Newton, A. A.; Niblett, G. B.F.; Reynolds, J. A. [United Kingdom Atomic Energy Authority, Culham Laboratory, Abingdon, Berks. (United Kingdom)

    1966-04-15

    sravnenija izmerennyh znachenij temperatur' jelektronov, diamagnetizma plazmy, radial'nogo raspredelenija plotnosti i vyhoda nejtronov so znachenijami, predskazannymi chislennymi gidromagnitnymi raschetami s ispol'zovaniem koda Gajna-Robertsa. V nastojashhee vremja s pomoshh'ju samyh raznoobraznyh metodov provoditsja izmerenie skorosti aksial'noj poteri plazmy v prisutstvii zahvachennyh parallel'nogo i obratnogo magnitnyh polej. Jeti metody vkljuchajut metody opticheskoj interferometrii dlja opredelenija obshhego chisla zahvachennyh chastic, analiz sploshnogo ispuskanija v vidimom spektre s cel'ju opredelenija plotnosti linij kak funkcii polozhenija v otnoshenii osi i ispol'zovanie miniatjurnyh p'ezojelektricheskih zondov dlja izmerenija razmera apertury pri poterjah. Rezul'taty pokazyvajut, chto plazma podverzhena diffuzii magnitnogo polja na rannih stadijah i ohlazhdeniju jelektronov libo radiaciej primesej, libo teplovoj provodimost'ju vdol' linij polja. Posledujushhee umen'shenie velichiny {beta} plazmy do znachenija okolo 0,5 pri pikovom pole uvelichivaet magnitnye apertury na koncah katushki i takim obrazom vedet k osevym poterjam plazmy. Sledovatel'no, glavnymi problemami na budushhee ostajutsja razrabotka sistemy predvaritel'nogo nagreva dlja pridanija plazme bolee vysokoj temperatury pri {beta} okolo edinicy i umen'shenie skorosti poteri jenergii jelektronov. (author)

  19. Characterization of Staphylococcus aureus Primosomal DnaD Protein: Highly Conserved C-Terminal Region Is Crucial for ssDNA and PriA Helicase Binding but Not for DnaA Protein-Binding and Self-Tetramerization.

    Directory of Open Access Journals (Sweden)

    Yen-Hua Huang

    Full Text Available The role of DnaD in the recruitment of replicative helicase has been identified. However, knowledge of the DNA, PriA, and DnaA binding mechanism of this protein for the DnaA- and PriA-directed replication primosome assemblies is limited. We characterized the DNA-binding properties of DnaD from Staphylococcus aureus (SaDnaD and analyzed its interactions with SaPriA and SaDnaA. The gel filtration chromatography analysis of purified SaDnaD and its deletion mutant proteins (SaDnaD1-195, SaDnaD1-200 and SaDnaD1-204 showed a stable tetramer in solution. This finding indicates that the C-terminal region aa 196-228 is not crucial for SaDnaD oligomerization. SaDnaD forms distinct complexes with ssDNA of different lengths. In fluorescence titrations, SaDnaD bound to ssDNA with a binding-site size of approximately 32 nt. A stable complex of SaDnaD1-195, SaDnaD1-200, and SaDnaD1-204 with ssDNA dT40 was undetectable, indicating that the C-terminal region of SaDnaD (particularly aa 205-228 is crucial for ssDNA binding. The SPR results revealed that SaDnaD1-195 can interact with SaDnaA but not with SaPriA, which may indicate that DnaD has different binding sites for PriA and DnaA. Both SaDnaD and SaDnaDY176A mutant proteins, but not SaDnaD1-195, can significantly stimulate the ATPase activity of SaPriA. Hence, the stimulation effect mainly resulted from direct contact within the protein-protein interaction, not via the DNA-protein interaction. Kinetic studies revealed that the SaDnaD-SaPriA interaction increases the Vmax of the SaPriA ATPase fivefold without significantly affecting the Km. These results indicate that the conserved C-terminal region is crucial for ssDNA and PriA helicase binding, but not for DnaA protein-binding and self-tetramerization.

  20. Inelastic Neutron Scattering from Doped Germanium and Silicon; Diffusion Inelastique des Neutrons dans du Germanium et du Silicium Contenant une 'Impurete'; Neuprugoe rasseyanie nejtronov na germanii i kremnii s prisadkoj; Dispersion Inelastica de Neutrones en Germanio y Silicio Deliberadamente Impurificados

    Energy Technology Data Exchange (ETDEWEB)

    Dolling, G. [Chalk River Nuclear Laboratories, Chalk River, ON (Canada)

    1965-04-15

    experimental. En los casos mas favorables, esta exactitud (relativa) alcanza al 0,5% del valor de la frecuencia, y llega hasta 2,0 Degree-Sign Inverted-Exclamation-Mark o tratandose de algunos modos opticos longitudinales en el silicio. (author) [Russian] Normal'nye formy kolebanija chistyh poluprovodnikov germanija i kremnija shiroko izuchalis' s pomoshh'ju kogerentnogo odnofononnogo rassejanija medlenny nejtronov na mono-kristallicheskih obrazcah. V dannom doklade opisyvajutsja analogichnye jeksperimenty, vypolnennye 1) s germaniem s bol'shoj prisadkoj ( Tilde-Operator 0,1%) a) mysh'jaka i '') galija, a takzhe 2) s kremniem s fosfornoj prisadkoj. V kazhdom sluchae kontrol'nye jeksperimenty provodilis' na kristallah vysokoj chistoty. Vse izmerenija vypolnjalis' na trehosnom kristallicheskom spektrometre v laboratorijah v Chok- River. Kak izvestno, postojannaja uprugosti C{sub 44} dlja germanija v znachitel'noj stepeni zavisit ot koncentracii prisadki, i pojetomu nekotorye poperechnye akusticheskie koljobanija (TA) s bol'shoj dlinoj volny izuchalis' s cel'ju vyjasnenija nalichija takih jeffektov v dispergirujushhej oblasti. Drugie TA kolebanija, chastoty kotoryh mozhno izmerjat' s vysokoj stepen'ju tochnosti, takzhe izuchalis' v oboih materialah s cel'ju vozmozhno bolee tochnoj proverki nebol'shih jeffektov, kotorye mozhno bylo by pripisat' nalichiju izbytka jelektronov ili dyrok. Osobenno tshhatel'no izuchalis' kolebanija so sledujushhimi volnovymi vektorami (aq/2{pi}, gde a -storona kubicheskoj jelementarnoj jachejki): 1) v germanii (1; 0; 0); 2) v kremnii (0.85; 0.85; 0) i (0.3; 0;0). Mozhno bylo by predpolozhit', chto takie normal'nye kolebanija projavjat neobychnye cherty v kristallah n-nogo tipa, poskol'ku dlja rassejanija jelektronov mezhdu sosednimi minimumami zon provodimosti potrebovalos' by vzaimodejstvie dlja sohranenija {sup i}mpul'sa kristalla{sup .} Rezul'taty vo vseh sluchajah byli otricatel'nymi, t.e. v predelah tochnosti jeksperimentov ne nabljudalos' nikakih

  1. Les prières et le droit. Considérations d’une sociologue Prayers and the Law. Reflections of a sociologist

    Directory of Open Access Journals (Sweden)

    Régine Azria

    2009-04-01

    Full Text Available Les points de rencontre entre prière et droit sont nombreux, y compris en France où, du fait de la Séparation, on serait fondé à considérer de telles rencontres comme illégitimes sinon impossibles, la prière se référant au religieux donc à la sphère privée et le droit à la justice donc à la sphère publique. Cet essai se propose de démontrer que dans la réalité, les cloisons entre le privé et le public sont moins étanches et les relations entre la religion et le droit plus étroites qu’il n’y paraît. Après avoir évoqué les systèmes de droit religieux (droit canon, charia, halakha produits en marge des droits nationaux, rappelé la diversité des liens juridiques entre État et religion (théocratie, monarchie de droit divin, religion d’État – avec ou sans reconnaissance de minorités religieuses tolérées –, religion de la majorité, pluralisme, Concordat, laïcité, séparation, athéisme d’État et la pluralité des niveaux et sources de normativité au sein même des systèmes religieux, l’article se concentre sur la prière et en décline les différents aspects. En effet, la prière n’est pas plus monolithique que le droit. Exercice solitaire ou pratique collective, expression spontanée ou normée de la foi, du sentiment religieux ou de l’appartenance confessionnelle, affirmation identitaire ou communautaire, la prière est diverse dans ses formes et ses contenus comme dans ses usages. Acte social ou militant, dès lors qu’elle se risque à franchir le seuil de la sphère privée du religieux, la prière rencontre la loi.Meeting points between prayers and the law are many, including in France where, because of the separation between the Church and the State, one would be entitled to consider such junctures as illegitimate if not impossible since prayer is linked to the religious and therefore the private sphere whereas law concerns justice and therefore the public sphere. The present essay

  2. Monitoring phenology of photosynthesis in temperate evergreen and mixed deciduous forests using the normalized difference vegetation index (NDVI) and the photochemical reflectance index (PRI) at leaf and canopy scales

    Science.gov (United States)

    Wong, C. Y.; Arain, M. A.; Ensminger, I.

    2016-12-01

    Evergreen conifers in boreal and temperate regions undergo strong seasonal changes in photoperiod and temperatures, which determines their phenology of high photosynthetic activity in the growing season and downregulation during the winter. Monitoring the timing of the transition between summer activity and winter downregulation in evergreens is difficult since this is a largely invisible process, unlike in deciduous trees that have a visible budding and a sequence of leaf unfolding in the spring and leaf abscission in the fall. The light-use efficiency (LUE) model estimates gross primary productivity (GPP) and may be parameterized using remotely sensed vegetation indices. Using spectral reflectance data, we derived the normalized difference vegetation index (NDVI), a measure of leaf "greenness", and the photochemical reflectance index (PRI), a proxy for chlorophyll:carotenoid ratios which is related to photosynthetic activity. To better understand the relationship between these vegetation indices and photosynthetic activity and to contrast this relationship between plant functional types, the phenology of NDVI, PRI and photosynthesis was monitored in an evergreen forest and a mixed deciduous forest at the leaf and canopy scale. Our data indicates that the LUE model can be parameterized by NDVI and PRI to track forest phenology. Differences in the sensitivity of PRI and NDVI will be discussed. These findings have implications to address the phenology of evergreen conifers by using PRI to complement NDVI in the LUE model, potentially improving model productivity estimates in northern hemisphere forests, that are dominated by conifers.

  3. Improvement of the design and generation of highly specific plant knockdown lines using primary synthetic microRNAs (pri-smiRNAs

    Directory of Open Access Journals (Sweden)

    Alves Leonardo

    2010-03-01

    Full Text Available Abstract Background microRNAs (miRNAs are endogenous small non-coding RNAs that post-transcriptionally regulate gene expression. In plants, they typically show high complementarity to a single sequence motif within their target mRNAs and act by catalyzing specific mRNA cleavage and degradation. miRNAs are processed from much longer primary transcripts via precursor miRNAs containing fold-back structures. Leaving these secondary structures intact, miRNAs can be re-designed experimentally to target mRNAs of choice. Results We designed primary synthetic miRNAs (pri-smiRNAs on the basis of the primary transcript of the Arabidopsis MIR159A gene by replacing the original miR159a and the corresponding miR159a* with novel sequences, keeping the overall secondary structure as predicted by the program RNAfold. We used the program RNAhybrid to optimize smiRNA design and to screen the complete Arabidopsis transcriptome for potential off-targets. To improve the molecular cloning of the pri-smiRNA we inserted restriction sites in the original MIR159A primary transcript to easily accommodate the smiRNA/smiRNA* DNA fragment. As a proof-of-concept, we targeted the single gene encoding chalcone synthase (CHS in Arabidopsis. We demonstrate smiRNA(CHS expression and CHS mRNA cleavage in different transgenic lines. Phenotypic changes in these lines were observed for seed color and flavonol derivatives, and quantified with respect to anthocyanin content. We also tested the effect of mismatches and excess G:U base pairs on knockdown efficiency. Conclusions RNAhybrid-assisted design of smiRNAs and generation of pri-smiRNAs using a novel vector containing restriction sites greatly improves specificity and speed of the generation of stable knockdown lines for functional analyses in plants.

  4. Thermochemical cycles for the heat and cold long-range transport. Final report of the PRI 9.2 Cold transport. Annual report of the PR 2-8; Cycles thermochimiques pour le transport de chaleur et de froid a longue distance. Rapport final du PRI 9.2. Transport de froid. Rapport annuel du PR 2-8

    Energy Technology Data Exchange (ETDEWEB)

    Luo, L.; Tondeur, D. [Laboratoire des Sciences du Genie Chimique (LSGC), 54 - Nancy (France); Mazet, N.; Neveu, P.; Stitou, D.; Spinner, B. [Institut de Science et de Genie des Materiaux et Procedes (IMP), 66 - Perpignan (France)

    2004-07-01

    This PRI deals with the use of thermochemical processes, based on solid-gas reversible transformation, to transfer heat of cold at long-range distance (> 10 km), in order to enhance the energy efficiency. Four main aspects have been studied to confirm the process feasibility: the process identification and the operating conditions, the selection of compatible reagents, the design of an auto-thermal reactor and the gas transport impact on the global performances. (A.L.B.)

  5. Obravnava vedenja in komunikacije po načelih ABA metode pri dvojčkih z avtističnimi motnjami

    OpenAIRE

    Berlot, Barbara

    2017-01-01

    Avtistične motnje sodijo med razvojno nevrološke motnje, ki trajajo celo življenje. Med težave, ki jih imajo osebe z avtističnimi motnjami na različnih področjih funkcioniranja, sodita tudi pojav neustreznih vedenjskih vzorcev in nezmožnost komunikacije z okoljem. Ravno pojav neustreznih vedenjskih vzorcev in nezmožnost komuniciranja z okoljem pri osebah z avtistično motnjo pomembno vplivata na uspešnost vključevanja teh oseb v različne vzgojno-izobraževalne programe. Namen kvalitativne študi...

  6. Anksioznost učencev 6. razreda osnovne šole pri pouku angleščine kot tujega jezika v povezavi z njihovo učno uspešnostjo

    OpenAIRE

    Praček, Anja

    2017-01-01

    Magistrsko delo obravnava anksioznost šestošolcev pri pouku angleščine kot tujega jezika v povezavi z njihovo učno uspešnostjo pri pouku angleščine. Pouk angleščine se v marsičem razlikuje od drugih šolskih predmetov in prav ta posebna učna situacija lahko pri učencih izzove anksioznost. Magistrsko delo je sestavljeno iz teoretičnega in empiričnega dela. V teoretičnem delu je s pomočjo literature na kratko predstavljena trenutna situacija poučevanja in učenja angleščine v slovenskih javnih...

  7. Congés… pour « prières » Prayers and days off

    Directory of Open Access Journals (Sweden)

    Claudine Viard

    2009-04-01

    Full Text Available Les premiers combats de la classe ouvrière se sont portés sur la demande d’une journée de repos, qui par tradition chrétienne a été fixée le dimanche en 1906. Quatre journées de congé à caractère chrétien ont en outre été retenues par le législateur. L’exercice du culte est donc concrètement garanti pour les chrétiens. Avec l’arrivée sur le territoire de la République  de populations de confessions variées, cette organisation du travail apparaît inégalitaire, voire de nature à porter atteinte à la liberté religieuse. Il a été proposé de reconnaître les jours de prières d’autres confessions. Pour l’instant, le législateur n’a pas adopté ces propositions. Mais la question reste posée. Or, la jurisprudence des tribunaux judiciaires et administratifs admet le droit de prier des fidèles des cultes minoritaires, ils peuvent prétendre à un congé lors des fêtes de leur religion dans la mesure où cela n’occasionne pas de perturbation. La consécration de cette jurisprudence souple par le législateur serait de nature à calmer le débat.At the turn of the century, the working classes fought for a day off in the week, which was granted on Sundays by the legislator in 1906. Four additional christian holidays are also legal. So the right to pray is garanteed for christians. As different populations with various faiths settled in France, this organisation has seemed to violate the principle of equality, and religious freedom. There has been a debate on the question whether some of the days of minority religions should also be observed by all the population. But so far, the legislator has not voted any of these proposals. It remains an issue. The French judge has consistently decided that the people of non christian faiths had the right to be granted a day off to pray on these special days, provided it would not cause prejudice to the organisation they work for. It might help to calm the debate if this

  8. Zeaxanthin-independent energy quenching and alternative electron sinks cause a decoupling of the relationship between the photochemical reflectance index (PRI) and photosynthesis in an evergreen conifer during spring.

    Science.gov (United States)

    Fréchette, Emmanuelle; Wong, Christopher Y S; Junker, Laura Verena; Chang, Christine Yao-Yun; Ensminger, Ingo

    2015-12-01

    In evergreen conifers, the winter down-regulation of photosynthesis and its recovery during spring are the result of a reorganization of the chloroplast and adjustments of energy-quenching mechanisms. These phenological changes may remain undetected by remote sensing, as conifers retain green foliage during periods of photosynthetic down-regulation. The aim was to assess if the timing of the spring recovery of photosynthesis and energy-quenching characteristics are accurately monitored by the photochemical reflectance index (PRI) in the evergreen conifer Pinus strobus. The recovery of photosynthesis was studied using chlorophyll fluorescence, leaf gas exchange, leaf spectral reflectance, and photosynthetic pigment measurements. To assess if climate change might affect the recovery of photosynthesis, seedlings were exposed to cold spring conditions or warm spring conditions with elevated temperature. An early spring decoupling of the relationship between photosynthesis and PRI in both treatments was observed. This was caused by differences between the timing of the recovery of photosynthesis and the timing of carotenoid and chlorophyll pool size adjustments which are the main factors controlling PRI during spring. It was also demonstrated that zeaxanthin-independent NPQ mechanisms undetected by PRI further contributed to the early spring decoupling of the PRI-LUE relationship. An important mechanism undetected by PRI seems to involve increased electron transport around photosystem I, which was a significant energy sink during the entire spring transition, particularly in needles exposed to a combination of high light and cold temperatures. © The Author 2015. Published by Oxford University Press on behalf of the Society for Experimental Biology.

  9. PAZ, PRI, AND PROGRESS: OCTAVIO PAZ’S POLITICAL, ECONOMIC AND LITERARY STRUGGLE TO INSPIRE REFORM IN TWENTIETH-CENTURY MEXICO

    Directory of Open Access Journals (Sweden)

    D. Gene Pace

    2003-01-01

    Full Text Available Throughout most of the twentieth century; Mexico’s political and economic policies were heavily influenced by the Partido Revolucionario Institutional (PRI. The landmark 1998 victory by Vicente Fox, the first presidential candidate in seven decades to win without the official sanction of the PRI,marked an important milestone in Mexican history; Octavio Paz, an eloquent proponent of political, economic, and social reform, sought for decades to inspire change. This paper seeks to illuminate Paz’s economic philosophy, and to demonstrate how the acclaimed writer, through courageous symbolic action coupled with an inimitable and potent pen, challenged the PRI’s hegemony in Mexico and contributed to the historic election he almost lived to celebrate (an elderly Paz died shortly before the historic 1998 election.“The Aztec ritual of 2 October [1968] in the Plaza de Tlatelolco. . . convinced me to abandon the Mexican Foreign Service.”“October 2, 1968 ended the student movement. It also ended an era in thehistory of Mexico.”

  10. Nova libro pri interlingvistiko

    Index Scriptorium Estoniae

    2006-01-01

    Rets rmt.: Blanke, Detlev. Interlinguistische Beiträge : zum Wesen und zur Plansprachen / herausgegeben von Sabine Fiedler. Frankfurt/Main, Berlin ; Bern ; Bruxelles ; New York ; Oxford ; Wien : Europäischer Verlag der Wissenschaften Peter Lang

  11. Sun-induced Chlorophyll fluorescence and PRI improve remote sensing GPP estimates under varying nutrient availability in a typical Mediterranean savanna ecosystem

    Science.gov (United States)

    Perez-Priego, O.; Guan, J.; Rossini, M.; Fava, F.; Wutzler, T.; Moreno, G.; Carvalhais, N.; Carrara, A.; Kolle, O.; Julitta, T.; Schrumpf, M.; Reichstein, M.; Migliavacca, M.

    2015-07-01

    This study investigates the performances of different optical indices to estimate gross primary production (GPP) of herbaceous stratum in a Mediterranean savanna with different Nitrogen (N) and Phosphorous (P) availability. Sun-induced chlorophyll Fluorescence yield computed at 760 nm (Fy760), scaled-photochemical reflectance index (sPRI), MERIS terrestrial-chlorophyll index (MTCI) and Normalized difference vegetation index (NDVI) were computed from near-surface field spectroscopy measurements collected using high spectral resolution spectrometers covering the visible near-infrared regions. GPP was measured using canopy-chambers on the same locations sampled by the spectrometers. We hypothesized that light-use efficiency (LUE) models driven by remote sensing quantities (RSM) can better track changes in GPP caused by nutrient supplies compared to those driven exclusively by meteorological data (MM). Particularly, we compared the performances of different RSM formulations - relying on the use of Fy760 or sPRI as proxy for LUE and NDVI or MTCI as fraction of absorbed photosynthetically active radiation (fAPAR) - with those of classical MM. Results showed significantly higher GPP in the N fertilized experimental plots during the growing period. These differences in GPP disappeared in the drying period when senescence effects masked out potential differences due to plant N content. Consequently, although MTCI was tightly related to plant N content (r2 = 0.86, p < 0.01), it was poorly related to GPP (r2 = 0.45, p < 0.05). On the contrary sPRI and Fy760 correlated well with GPP during the whole measurement period. Results revealed that the relationship between GPP and Fy760 is not unique across treatments but it is affected by N availability. Results from a cross validation analysis showed that MM (AICcv = 127, MEcv = 0.879) outperformed RSM (AICcv = 140, MEcv = 0.8737) when soil moisture was used to constrain the seasonal dynamic of LUE. However, residual analyses

  12. PRI 2.1: Basic researches on the photovoltaic: new materials (july 2002 - july 2004). Final report of the integrated research project; PRI 2.1: Recherches de base en photovoltaique: nouveaux materiaux (Juillet 2002 - Juin 2004). Rapport final du projet de recherche integre

    Energy Technology Data Exchange (ETDEWEB)

    Marfaing, Y.

    2004-07-01

    The main material of the photovoltaic cells is the massive crystalline silicon. For a large scale development of the photovoltaic industry, it is necessary to use thin layers. Many materials are possible to reach this objective: different types of silicon (amorphous, mono-crystal, poly-crystal), poly-crystal of CIS type (CuInSe{sub 2}) and organic molecules and polymers. The last two types are innovative and need some researches. These research axis are presented in this PRI. (A.L.B.)

  13. Las élites gobernantes priístas del Estado de México: su conformación y redes 1942-2005

    Directory of Open Access Journals (Sweden)

    Claudia Abigail Morales Gómez

    2006-01-01

    Full Text Available El análisis que se realiza a lo largo de este texto tiene como objetivo explicar la conformación de las élites gubernamentales priístas en las sucesiones del ejecutivo local del Estado de México. Lo cual se pretende demostrar a través de una revisión teórica de las élites y desde la concepción del término; misma que para el caso de estudio se llevó a cabo mediante el reconocimiento de las redes de los principales actores políticos, lo que permite mostrar que sus relaciones de amistad, familiares o laborales son las que le posibilitan ascender y formar parte de las élites gubernamentales.

  14. Trening za razvijanje občutka za števila in količine pri predšolskih otrocih s posebnimi potrebami

    OpenAIRE

    Kuplenk, Petra

    2017-01-01

    Tako otroci kot tudi odrasli se z matematiko srečujemo na vsakem koraku, pa naj bo to na poti v vrtec, službo ali pa pri delu doma. Matematika vsakodnevno vpliva na naše življenje in delo. Na delovnem mestu, v vrtcu, opažam vse večje težave otrok s posebnimi potrebami na področju razvoja občutka za števila in količine. V predšolskem obdobju je namreč nujno, da otroci razvijejo občutek za števila in količine, saj vsa nadaljnja matematična znanja temeljijo na usvojenih spretnostih. V empirič...

  15. Lower Oligocene non-geniculate coralline red algal (Corallinales, Rhodophyta assemblage from Poljšica pri Podnartu (Upper Carniola, Slovenia

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    Luka Gale

    2008-12-01

    Full Text Available The Lower Oligocene Gornji Grad beds from Polj{ica pri Podnartu consist of marly limestone, mudstone, several layers of limestones and two layers of sandstones, and were deposited on a mixed carbonate-siliciclastic ramp.Especially the limestones contain rich fossil fauna and non-geniculate coralline red algae. These were systematicallycollected from four horizons and researched in thin sections under an optical microscope. Genera Lithoporella,Neogoniolithon, Spongites, Lithothamnion, Mesophyllum and Spongites were recognized. Surface area for each genus was calculated and the differences in the coralline assemblages in the four horizons were analysed. Thecorallines originate from two source areas: sandy-muddy bottom of a shallow marine environment, and small coral bioherms with its encrusters.

  16. Izvršilne funkcije pri učencih s primanjkljaji na posameznih področjih učenja

    OpenAIRE

    Senekovič, Jasna

    2017-01-01

    V magistrskem delu z naslovom Izvršilne funkcije pri učencih s primanjkljaji na posameznih področjih učenja v prvem delu predstavljamo dosedanja spoznanja o izvršilnih funkcijah in učnih težavah v osnovni šoli, še posebej učencev s primanjkljaji na posameznih področjih učenja (PPPU). Tako smo v teoretičnem delu najprej opredelili osnovne pojme izvršilne funkcije, samoregulacija, metakognicija, učenje učenja in učne težave, posebej še primanjkljaje na posameznih področjih učenja. Podrobneje sm...

  17. La mort d’un couple : prière(s et vie publiques Death of a couple: prayer(s and public life

    Directory of Open Access Journals (Sweden)

    Mathieu Touzeil-Divina

    2009-04-01

    Full Text Available Si, avant la Loi du 5 décembre 1905, les Eglises et l’Etat concrétisaient matériellement leurs liens étroits par des rites officiels nommés prières publiques, ceux-ci sont censés avoir été supprimés depuis. C’est l’histoire de cette suppression (après en avoir retenu une définition qui est ici envisagée à travers trois secteurs cardinaux de l’action administrative : la vie universitaire, parlementaire et judiciaire. Dans ces trois hypothèses les prières publiques ont été supprimées de façon différente (respectivement : par désuétude, par une Loi constitutionnelle et par circulaire. On constatera, enfin, l’actualité (troublante de certains de ces rites non exclus totalement de notre vie publique … laïque.If, before the law from December 5, 1905 law, Churches and the State would concretely manifest their close links through official rites called public prayers, these rites are supposed to have since been abolished. This article deals with the history of this abolition – which it first defines – through the study of the three central sectors of the public sector’s activity: university, parliament and judiciary life. In these three hypotheses, prayers have been abolished in various ways (respectively: by obsolescence, by constitutional statute-law and by decree. It will eventually focus on the (disquieting actuality of some of these rites not entirely excluded from our « secular » public life.

  18. The Formation of Polymeric Products in Reactions of Polyvalent Recoil Atoms; Formation de Polymeres lors de Reactions Provoquees par des Atomes de Recul Polyvalents; Obrazovanie polimernykh produktov pri reaktsiyakh polivalentnykh atomov otdachi; Formacion de Polimeros en las Reacciones de Atomos de Retroceso Polivalentes

    Energy Technology Data Exchange (ETDEWEB)

    Dzantiev, B. G.; Stukan, R. A.; Shvedchikov, A. P.; Shishkov, A. V. [Institut Himicheskoj Fiziki AN SSSR, Moskva, SSSR (Russian Federation)

    1965-04-15

    mechenyh polimernyh produktov v processe himicheskoj stabilizacii atomov otdachi sery-35 i ugleroda-14, poluchajushhihsja po jadernym reakcijam Cl{sup 35} /n, p/S{sup 35} i N{sup 14}/n, p/C{sup 14} v gazovoj i zhidkoj fazah. Mozhno predpolozhit', chto v processe stabilizacii gorjachie atomy ugleroda obrazujut metilenovye biradikaly, kotorye po svoej sposobnosti vstupat' v reakciju vo mnogom napominajut povedenie atomarnoj sery. Issledovanija provodilis' kak dlja parafinovyh (CH{sub 4}, C{sub 2}H{sub 6}), tak i dlja ciklicheskih (ciklogeksan, ciklogeksen, benzol) uglevodorod. Oblucheniju podvergalis' binarnye sistemy uglevodorod-datchik gorjachih atomov S{sup 35} i C{sup 14}. V kachestve poslednego ispol'zovalis' soedinenija CCI{sub 4}, HCl i ammiak. Obluchenie provodilos' na reaktore tipa IRT-1000 pri potoke teplovyh nejtronov 10{sup 11} - 10{sup 12} neJtron/cm{sup 2}sek. Pokazano, chto dlja razlichnyh soedinenij v zhidkoj faze do 60-90% sery-35 stabilizuetsja v forme polimera, vyhod kotorogo jekstremal'no zavisit ot sostava, prohodja cherez maksimum pri sootnoshenii komponentov, blizkom k jekvimolekuljarnomu. V gazovoj faze vyhod polimera sostavljaet 30 - 40% ot obshhej aktivnosti. Metodom radiohromatografii na bumage ustanovleno, chto mechenye polimernye produkty imejut slozhnyj sostav i predstavljajut soboj smes' dvuh kachestvenno otlichnyh tipov soedinenij, vyhod kotoryh po-raznomu menjaetsja v zavisimosti ot sootnoshenija komponentov. Uvelichenie vremeni obluchenija privodit k rostu vyhoda mechenogo polimera. V sluchae zhidkofaznoj sistemy C{sub 6}H{sub 12}-CCl{sub 4} molekuljarnyj ves S{sup 35}-soderzhashhego polimera, opredeljalsja metodom diffuzii iz kapilljara i okazalsja ravnym 5000 dlja polimera odnogo tipa i 500 - 1000 dlja drugogo. Obrazovanie vysokokipjashhego mechenogo produkta nabljudalos' takzhe pri obluchenii chistogo CCI{sub 4}. Analogichnye opyty provodilis' v sisteme jetilen -ammiak v gazovoj faze pri vysokom davlenii. Pokazano, chto v jetom sluchae

  19. Evalvacija nivojskega pouka pri pouku slovenščine v 8. in 9. razredih na osnovnih šolah v občinah Ormož, Središče ob Dravi in Sveti Tomaž

    OpenAIRE

    Lalić, Marko

    2012-01-01

    Mnenja o učni diferenciaciji in individualizaciji pouka ter z njima povezanim nivojskim poukom so že od samega začetka predmet nasprotujočih si mnenj tako pri strokovnjakih kot pri laikih. Nivojski pouk, ki je v veljavi vse od leta 1996, je poskrbel, da proces poučevanja poteka na drugačnem učiteljevem pristopu, na večji učenčevi aktivnosti, povezovanju učnih vsebin in prilagajanju učenčevih individualnih posebnosti. Leta 2006 je bil nivojski pouk kot sistemski ukrep opuščen. Šolam pa je bilo...

  20. Methods of Particle Detection in Free Neutron Decay; Methode de detection des particules dans une desintegration de neutrons libres; Metod obnaruzheniya chastits pri raspade svobodnogo nejtrona; Metodo para la deteccion de particulas en la desintegracion de neutrones libres

    Energy Technology Data Exchange (ETDEWEB)

    Novey, T B [Argonne National Laboratory, Lemont, IL (United States)

    1960-06-15

    aboutir a un multiplicateur ordinaire a 10 etages et ses chicanes d'entree pour resolution angulaire. 4. Le systeme electronique qui isole dans les detecteurs les impulsions venant des detecteurs et ayant les caracteristiques voulues de frequence, de retard relatif et d'amplitude et permet ainsi d'identifier la des- integration d'un neutron. (author) [Spanish] En el Laboratorio de Argonne se ha llevado a cabo recientemente una serie de estudios experimentales sobre la desintegracion de neutrones polarizados, con el fin de elucidar las modalidades de la interaccion nuclear a bajas energias. Estos estudios han consistido en mediciones de la distribucion angular de electrones y protones con respecto al sentido del spin de los neutrones libres que sufren la desintegracion. Los componentes fundamentales del aparato que el autor describe en la memoria son: 1. Un espejo de hierro y cobalto, de un metro, que selecciona un haz de neutrones altamente polarizados y permite determinar el grado de polarizacion aplicando distintos procedimientos . 2. El detector de electrones, consistente en un mosaico de cristales de antraceno de 10 cm de diametro y 6 mm de espesor, y en un dispositivo de canalizacion luminosa. 3. El detector de protones, formado por un sistema multiplicador de electrones de 14 etapas, la primera de las cuales con una abertura de 15x15 cm, que va disminuyendo en cuatro pasos hasta una estructura multiplicadora usual de 10 etapas, y sus deflectores de entrada para lograr la resolucion angular. 4. El sistema electronico que selecciona los impulsos que, al ser adecuados los intervalos con que se suceden, su defasaje en tiempo y su amplitud, hacen posible la identificacion de una desintegracion neutronica. (author) [Russian] Nedavno Argonnskoj gruppoj byl zavershen ryad ehksperimental'nykh issledovanij po raspadu polyarizovannykh nejtronov s tem, chtoby prolit'svet na strukturu slabogo yadernogo vzaimodejstviya. EHti issledovaniya nosili formu izmereniya uglovykh

  1. Method of obtaining concentrated preparations of Cl{sup 36} and Br{sup 82} by recoil nuclei under exposure to high-density neutron fields; Preparation de composes du chlore-36 et du brome-82 de haute activite specifique, par exposition de noyaux de recul a des champs neutroniques intenses; Poluchenie kontsentrirovannykh preparatov Cl{sup 36} i Br{sup 82} metodom yader otdachi pri obluchenii v nejtronnykh polyakh vysokoj plotnosti; Obtencion de compuestos de cloro-36 y de bromo-82 de alta actividad especifica por retroceso de nucleos en campos neutronicos intensos

    Energy Technology Data Exchange (ETDEWEB)

    Kurchatova, L N; Kurchatov, B V

    1962-01-15

    resultado de la superposicion de toda una serie de procesos : formacion de atomos de cloro radiactivo, separacion radiolitica del haluro, difusion de los productos obtenidos en la red cristalina del carbono, su sorcion en la superficie y su recombinacion en distintos centros. La extraordinaria variedad de condiciones en que se forman e interaccionan los productos de irradiacion con el esqueleto carbonico y su superficie depende de un gran numero de factores, a saber : la estructura ultramicroscopica, la naturaleza de los nuevos compuestos, que estan relacionados con el tipo de compuestos superficiales, la existencia en la superficie del carbono de centros con un espectro continuo de energia de sorcion, la probable formacion de diversos centros estacionarios de recombinacion por irradiacion del carbono, etc. Por ello, las tecnicas utilizadas ofrecen la posibilidad de realizar una gran variedad de experimentos a fin de establecer las condiciones optimas de enriquecimiento. (author) [Russian] Klassicheskij metod polucheniya kontsentrirovannykh radioaktivnykh preparatov Stsilarda-CHalmersa obychno rassmatrivaetsya kak malo ehffektivnyj pri ispol'zovanii bol'shikh integral'nykh potokov nejtronov iz-za znachitel'nogo razlozheniya obluchaemogo soedineniya pod dejstviem radiatsii. Avtorami najdeny soedineniya broma i khlora s uglerodom, pozvolyayushchie poluchat' sushchestvennoe obogashchenie radioaktivnymi izotopami khlora i broma metodom yader otdachi pri obluchenii v nejtronnykh potokakh poryadka 10{sup 13} nejtr./sek-cm{sup 2}. EHti soedineniya otvechayut formule C{sub n}X, gde X-Cl ili Br, N = 10 + 20 dlya soedineniya khlora i 25 + 70 -dlya soedinenij broma. Oni dostatochno ustojchivy termicheski i khimicheski. Soedinenie sostava C{sub 30}Br vyderzhivaet nagrevanie do 300{sup o}C v atmosfere argona bez otshchepleniya broma; ono razlagaetsya polnost'yu pri temperature 600{sup o}C. Ukazannoe soedinenie broma s uglerodom prakticheski ustojchivo k vozdejstviyu vodnykh rastvorov

  2. A critical summary of microscopic fast-neutron interactions with reactor structural, fissile and fertile materials; Apercu critique des interactions microscopiques des neutrons rapides avec les materiaux de construction et les matieres fissiles et fertiles utilisees dans les reacteurs; Kriticheskij obzor mikroskopicheskog o vzaimodejstviya bystrykh nejtronov s konstruktsionnymi, rasshcheplyayushchimis ya i vosproizvodyashchim i reaktornymi materialami; Resumen critico de las interacciones microscopicas de los neutrones rapidos con los materiales estructurales fisionables y fertiles utilizados en los reactores

    Energy Technology Data Exchange (ETDEWEB)

    Smith, A B [Argonne National Laboratory, Argonne, IL (United States)

    1962-03-15

    reactions provoquees par des neutrons rapides, en insistant sur les conditions que doivent remplir, dans les reacteurs, les donnees nucleaires fondamentales. (author) [Spanish] El autor examina el estado actual de los conocimientos acerca de las reacciones inducidas por los neutrones rapidos que se utilizan en el proyecto de reactores nucleares. Estudia con particular atencion los metodos experimentales microscopicos, sus resultados y la precision de los mismos. Considera con detalle la dispersion de los neutrones rapidos, y da los resultados de mediciones experimentales de la dispersion en el caso del oxigeno, hierro, zirconio, niobio, wolframio, torio y uranio. Expone los resultados mas significativos de los estudios experimentales de la captura de neutrones rapidos y de la fision inducida por los mismos. Las mediciones estudiadas no solo conducen a resultados de gran utilidad practica, sino que sirven como ejemplos de la aplicacion de las tecnicas nucleares experimentales mas modernas. El autor indica los terrenos en que la informacion experimental es limitada, contradictoria o inexistente. Por ultimo, formula previsiones sobre el desarrollo de los conocimientos relativos a las reacciones de los neutrones rapidos, subrayando lo referente al cumplimiento de las condiciones necesarias para que el reactor proporcione datos nucleares basicos. (author) [Russian] V doklade rassmatrivaetsya primenenie shiroko rasprostranenny kh znanij o reaktsiyakh, vyzyvaemykh bystrymi nejtronami v yadernykh proektakh reaktornykh sistem. Osnovnoe znachenie pridaetsya mikroskopicheski m ehksperimental'ny m metodam, rezul'tatam i tochnosti. Podrobno rassmatrivaetsya rasseyanie bystrykh nejtronov, vklyuchaya rezul'taty ehksperimental'nogo opredeleniya rasseyaniya na kislorode, zheleze, tsirkonii, niobii, vol'frame, torii i urane. Privodyatsya dannye, poluchennye v rezul'tate ehksperimental'ny kh issledovanij zakhvata bystrykh nejtronov i deleniya, vyzvannogo nejtronami. Izmereniya, privedennye v

  3. Li tter Fall i n A Pri mary an d Two Logged -over Lowland Tropical Rainfore sts in Pasirmayang, Jam bi.

    Directory of Open Access Journals (Sweden)

    UPIK ROSALI NA WAS R IN

    1999-01-01

    Full Text Available Litte r accu mulatio n in a prim ary and a log g ed-ove r lo wland dipterocarp fore st at Pa si rmayang, Ja mbi wa s measu red u sin g the litte r trap met hod . In the p rimary fore st , tra p s were placed in fou r d istinc t areas, reflectin g th e su ccess ion stages of the fo rest fr om building t o mat u ration. In the logged-over fo re st , litter p roduc tion w a s measured at two differe nt si tes, one cut in 197 9/1980 a nd t h e second i n 1 983/1984. In the prim ary fore st , ave rage litter production during the ob serv ation period wa s 925 g m"2yr '. In the lo gged -over f o r e st , ave rage l itte r production wa s 721 g m '2 yr1 for t h e sit e cut in 1979 /198 0 and 70 6 g m '2 yr1 f o r the site cut in 19 83/1 984 . Leave s com p ri sed the major con tri butor of litter wit h 67% of tota l litter produced in t h e pri m ary forest, 67% of total litter i n the 1979/ 1980 cut log g ed-o ver fore st, and 65 % of total li tter in the 1983/1984 cut logged-over fore st . The pu rp ose of the stu dy wa s to use litte r fa ll a s a measure of forest pro ductivi ty to a ssess the recovery of log g ed -over forests and , t o pro v ide a basi s for co mpariso n o f forest-de rived land practices for app ropriate fo re st manage ment stra tegies .

  4. Las redes sociales en las campañas de los candidatos a diputados locales del PRI , el PAN y el PRD en las elecciones de 2015 en el Estado de México / Social media in local campaigns of pri , pan and prd candidates in the 2015 State of Mexico legislative elections

    Directory of Open Access Journals (Sweden)

    Leticia Heras Gómez

    2018-01-01

    Full Text Available El objetivo del artículo es examinar la comunicación política de los partidos a través de las redes sociales (Facebook y Twitter en las elecciones de 2015 para el Congreso local del Estado de México. Con este fin, se realizó un análisis de contenido de todos los mensajes en redes sociales de los candidatos del Partido Revolucionario Institucional (PRI el Partido Acción Nacional (PAN y el Partido de la Revolución Democrática (PRD a partir de una muestra de nueve de los 45 distritos electorales uninominales, con base en una codificación que clasifica su contenido en ocho categorías relevantes. Contrario a los supuestos de la literatura sobre la posmodernización de las campañas electorales, los resultados del estudio muestran que el uso político de las redes sociales en las elecciones locales en México es todavía limitado y que los canales basados en Internet aún no han logrado desplazar a las formas tradicionales de comunicación ni de participación electoral. En general, los datos revelan que las redes sociales se utilizan esencialmente como agenda o diario de actividades de los candidatos, los cuales buscan una mayor visibilidad de su imagen, pero con escasa incidencia en los resultados electorales. / The aim of this article is to examine political party communication through social media (Facebook and Twitter in the 2015 local congressional elections of the State of Mexico. According to that purpose, we carried out a content analysis of social media messages of all congressional candidates of the PRI, PAN, and PRD from a sample of nine single-member districts out of 45, by using a coding of eight relevant categories. The results of our study show that the political use of social media in local elections in México is still quite limited and that Internet channels have not replaced traditional methods of political communication and electoral participation, which is contrary to the assumptions of post-modernization literature

  5. A Simple and High-Throughput Analysis of Amatoxins and Phallotoxins in Human Plasma, Serum and Urine Using UPLC-MS/MS Combined with PRiME HLB μElution Platform

    Directory of Open Access Journals (Sweden)

    Shuo Zhang

    2016-05-01

    Full Text Available Amatoxins and phallotoxins are toxic cyclopeptides found in the genus Amanita and are among the predominant causes of fatal food poisoning in China. In the treatment of Amanita mushroom poisoning, an early and definite diagnosis is necessary for a successful outcome, which has prompted the development of protocols for the fast and confirmatory determination of amatoxins and phallotoxins in human biological fluids. For this purpose, a simple, rapid and sensitive multiresidue UPLC-MS/MS method for the simultaneous determination of α-amanitin, β-amanitin, γ-amanitin, phalloidin (PHD and phallacidin (PCD in human plasma, serum and urine was developed and validated. The diluted plasma, serum and urine samples were directly purified with a novel PRiME technique on a 96-well μElution plate platform, which allowed high-throughput sample processing and low reagent consumption. After purification, a UPLC-MS/MS analysis was performed using positive electrospray ionization (ESI+ in multiple reaction monitoring (MRM mode. This method fulfilled the requirements of a validation test, with good results for the limit of detection (LOD, lower limit of quantification (LLOQ, accuracy, intra- and inter-assay precision, recovery and matrix effects. All of the analytes were confirmed and quantified in authentic plasma, serum and urine samples obtained from cases of poisoning using this method. Using the PRiME μElution technique for quantification reduces labor and time costs and represents a suitable method for routine toxicological and clinical emergency analysis.

  6. Scanning in Thyroid Cancer; Exploration des tumeurs de la thyroide; Ispol'zovanie radioizotopov pri issledovanii raka shchitovidnoj zhelezy; Exploracion de los tumores tiroideos

    Energy Technology Data Exchange (ETDEWEB)

    Bauer, Franz K [Radioisotope Centre, University of Southern California School of Medicine, Los Angeles, CA (United States)

    1959-07-01

    methode qui permette de suivre l'evolution de la maladie. (author) [Spanish] La exploracion de los tumores de la tiroides reviste interes para: 1. El diagnostico preoperatorio de los nodulos tiroideos; 2. La localization de metastasis del cancer de tiroides; 3. El tratamiento de los enfermos tiroidectomizados, con metastasis del cancer de la tiroides. El autor describe el aspecto de los nodulos tiroideos en el centelleograma y proporciona algunos resultados preliminares obtenidos con el empleo del fosforo radiactivo y con el recuento externo de los nodulos < inactivos > mediante un contador Geiger-Mueller. El autor describe asimismo la localizacion de las metastasis del cancer de la tiroides, destacando, especialmente, el empleo de la hormona tirotropica. Ese metodo ha permitido comprobar que las tres cuartas partes de los enfermos que padecen de tumores metastaticos de la tiroides tienen metastasis activas. Estudia detalladamente la tecnica de la ablation de los restos glandulares que suelen quedar despues de la tiroidectomia total, asi como el tratamiento de las metastasis. La exploracion de las metastasis constituye el mejor medio para observar la evolucion de la enfermedad. (author) [Russian] Primenenie radioizotopov v issledovanii raka shchitovidnoj zhelezy rekomenduetsya v sleduyushchikh sluchayakh: 1. Predoperatsionny j diagnoz uzelkovogo utolshcheniya shchitovidnoj zhelezy; 2. Lokalizatsiya metastazov raka shchitovidnoj zhelezy; 3. Lechenie bol'nykh s udalennoj shchitovidnoj zhelezoj, no s metastazami, obrazovann{sup m}i rakom ehtoj zhelezy; Opisyvaetsya vliyanie uzelkovykh utolshchenij shchitovidnoj zhelezy na etsiitigrammu. Soobshchaetsya o nekotorykh predvaritel'nykh rezul'tatakh opredeleniya < kholodnykh > utolshchenij pri pomoshchi radioaktivnog o fosfora i naruzhnogo primeneniya schetchika Gejgera-Myullera. Opisyvaetsya lokalizatsiya metastazov raka shchitovidnoj zhelezy i v osobennosti ispol'zovanie dlya ehtoj Deli gormona perednej doli gipofiza. S pomoshch

  7. Avtomatsko vodenje pri avtonomnih jadrnicah

    OpenAIRE

    ROJE, MARIN

    2016-01-01

    Avtonomne jadrnice so robotska plovila, ki brez potrebe po človekovih posegih uporabljajo veter za pogon in upravljajo z jadri in krmilom. Namen razvoja teh plovil je izdelava jadrnice brez posadke, ki omogoča popolno samostojno jadranje, varno plovbo in izvajanje dolgoročnih nalog na morju. Najpomembnejši sistemi avtonomnih jadrnic so: sistem za dolgoročno načrtovanje plovne poti v odvisnosti od vremenskih razmer, sistem za kratkoročno preusmerjanje jadrnice v odvisnosti od trenutnih pod...

  8. Primenenie piyavita pri sakharnom diabete

    Directory of Open Access Journals (Sweden)

    E V Mikhaylova

    1999-06-01

    Full Text Available Актуальность. Микроциркуляторные сосудистые нарушения при сахарном диабете (СД носят вторичный характер, но необходимость их коррекции выходит на первый план, так как они являются причиной стойких, некупируемых сахароснижающими препаратами патологических состояний (нефропатия, ретинопатия и др., ведущих к инвалидизации. Имеются данные о влиянии пиявита на реологические свойства крови, васкулярно-тромбоцитарный гемостаз, липидный обмен, атерогенез. Цель. Изучение влияния Пиявита на реологические свойства крови, васкулярно-тромбоцитарный гемостаз, липидный обмен, атерогенез. Материалы и методы Обследовано 30 человек: 22 больных сахарным диабетом 2 типа в возрасте от 41 года до 67 лет и 8 больных с СД 1 типа в возрасте от 17 до 42 лет. 13 пациентов с СД 2 получали инсулин и сахароснижаюшие препараты, 9 ? только сахароснижаюшие препараты. Все больные СД 1 типа находились на инсулинотерапии. На фоне указанных методов лечения больным назначали Пиявит. Лечение пиявитом проводили в течение 3 нед. по 300 мг 2 раза в день. Результаты. Данные свидетельствуют об улучшении показателей липидного обмена: снижении уровня холестерина сыворотки крови и триглицеридов. Полученные результаты свидетельствуют о снижении гиперкогуляционного потенциала крови и усилении фибринолитической активности крови под влиянием пиявита. Выводы. На фоне лечения пиявитом у больных сахарным диабетом отмечено улучшение показателей липидного обмена и системы гемостаза. Пиявит можно рекомендовать для комплексной терапии больных сахарным диабетом 1 и 2 типа.

  9. Pathogenesis of Intrapulmonary Haemorrhage in Dogs Exposed to Pulsed Fission-Spectrum Neutrons; Pathogenese de l'Hemorragie Intrapulmonaire chez des Chiens Exposes a des Neutrons de Fission Pulses; Patogenez vnutrilegochnykh krovoizliyanij u sobak pri obluchenii impul'snymi nejtronami spektra deleniya; Patogenesis de la Hemorragia Intrapulmonar en Perros Expuestos a Neutrones de Fision Pulsados

    Energy Technology Data Exchange (ETDEWEB)

    Jones, R. K.; Engel, R. E.; Godden, W. R. [Kirtland AFB, New Mexico (United States)

    1964-05-15

    cambios se generalizan aun mas a los nueve dias, observandose tambien zonas focales de extravasacion peribronquial de la sangre alrededor de los dos bronquios primarios. La autopsia al decimotercer dia de la irradiacion revelo una extensa hemorragia perivascular que comprende las arterias pulmonares gruesas y finas. La sangre aparece dentro del tejido conjuntivo adventicio y de los espacios linfaticos periarteriales. La hinchazon del endotelio es muy pronunciada en los vasos afectados, pero la zona media de estos no presenta modificaciones esenciales. Tambien se manifiesta una hemorragia peribronquial contigua a las ramas afectadas de la arteria pulmonar. La patogenesis de estas alteraciones guarda al parecer una relaciuen con una lesion endotelial primaria producida por los neutrones de fision pulsados. Es probable que tambien actue como factor complementario una trombocitopenia, ya que se comprobo que el numero de megacariocitos medulares es inversamente proporcional a la gravedad de la hemorragia intrapulmonar. (author) [Russian] Predydushhie issledovanija v dannoj laboratorii po tkanevym povrezhdenijam u sobak, vyzyvaemym rentgenovskim oblucheniem s pikovym naprjazheniem 250 kv i impul'snymi nejtronami spektra delenija pokazali obshhee shodstvo reakcii. Odnako u zhivotnyh, obluchennyh nejtronami spektra delenija, chashhe v o z nikajut peribronhial'nye i perivaskuljarnye legochnye krovoizlijanija. Sdelana popytka opredelit' patogenez jetih porazhenij putem obluchenija pjati gonchih sobak dozoj v 400 rad bystryh nejtronov na reaktore tipa GODIVA bez otrazhatelja i serijnogo zabivanija zhivotnyh cherez opredelennye intervaly. Ch erez +5 dnej posle obluchenija mozhno bylo videt' znachitel'nye patologicheskie iz menenija, sostojashhie iz redkih melkih perifericheskih l egochnyh krovoizlijanij. K 9-mu dnju oni stanovilis' bolee mnogochislennymi. Naibolee porazitel'nye izmenenija, nabljudavshiesja k + 13-mu dnju, sostojali iz obshirnyh perivaskuljarnyh krovoizlijanij vokrug

  10. A pulsed fast reactor; Un reacteur pulse a neutrons rapides; Impul'snyj reaktor na bystrykh nejtronakh; Reactor rapido pulsado

    Energy Technology Data Exchange (ETDEWEB)

    Blokhin, G. E.; Blokhintsev, D. I.; Blyumkina, Yu. A.; Bondarenko, I. I.; Deryagin, B. N.; Zajmovskij, A. S.; Zinov' ev, V. P.; Kazachkovskij, O. D.; Krasnoyarov, N. V.; Lejpunskij, A. I.; Malykh, V. A.; Nazarov, P. M.; Nikolaev, S. K.; Stavisskij, Yu. Ya.; Ukraintsev, F. I.; Frank, I. M.; Shapiro, F. Ji.; Yazvitskij, Yu. S. [Akademiya Nauk, Moscow, SSSR (Russian Federation)

    1962-03-15

    los impulsos de potencia. Asimismo, se efectuaron mediciones del periodo de los neutrones instantaneos, de la fraccion efectiva de neutrones retardados y de los coeficientes de variacion de la reactividad en funcion de la temperatura. (author) [Russian] Impul'snyj reaktor na bystrykh nejtronakh (IBR) rabotaet na nominal'noj moshchnosti v Obedinennom institute yadernykh issledovanij s dekabrya 1960 goda. Reaktor ispol'zuetsya v kachestve impul'snogo istochnika nejtronov dlya fizicheskikh ehksperimentov, provodimykh metodom vremeni proleta. Provodyatsya izmereniya polnogo secheniya, secheniya zakhvata dlya promezhutochnykh nejtronov, issledo- vaniya vzaimodejstviya medlennykh nejtronov s tverdym telom i s zhidkost'yu, izmereniya spektrov nejtronov, ustanavlivayushchikhs ya v. razlichnykh sredakh. V doklade opisany osnovy konstruktsii reaktora i rezul'taty ego issledovanij. Osnovnoj rezhim raboty reaktora-rezhim periodicheskikh impul'sov. Impul'sy moshchnosti voznikayut pri bystrom peremeshchenii podvizhnoj chasti aktivnoj zony reaktora cherez ego nepodvizhnuyu zonu. Podvizhnaya chast' aktivnoj zony zakreplena vo vrashchayushchemsya diske i dvizhetsya so skorost'yu-230 m/sek. Chastota impul'sov moshchnosti mozhet izmenyat'sya s pomoshch'yu vspomogatel'noj podvizhnoj zony v diapazone 2,3-88 im/sek. Srednyaya moshchnost' reaktora - 1 kvt. Polushirina impul'sa moshchnosti - 36 mksek. Reaktor snabzhen sistemoj upravleniya i zashchity, obespechivayushchej avtomaticheskoe podderzhanie srednej moshchnosti reaktora i ego bystruyu ostanovku v sluchae narusheniya rezhima. Reaktor snabzhen sistemoj vakuumirovanny kh nektronovodov, ispol'zuemykh v ehksperimentakh po vremeni proleta. Glavnyj nejtronovod imeet dlinu 1000 m. V protsesse puska i fizicheskikh issledovanij reaktora izuchalos' vliyanie peremeshcheniya organov regulirovaniya i podvizhnykh chastej aktivnoj zony na reaktivnost', izmeryalas' dlitel'nost' impul'sa pri razlichnykh rezhimakh raboty reaktora, izuchalis

  11. Animal Representations on Ceremonial Objects Found in the Tumulus at Črnolica pri Šentjurju at the Foot of Rifnik

    Directory of Open Access Journals (Sweden)

    Iztok Vrenčur

    2013-07-01

    Full Text Available The years 1985 and 1986 saw a rescue excavation by archaeologists from the Institute for the Protection of Cultural Heritage of Slovenia, Celje Regional Office, performed on the severely damaged Iron Age tumulus in the village of Črnolica pri Šentjurju. The village lies in the close vicinity of the Rifnik hill, the site of one of the largest known hilltop settlements in Slovenia dating from the Late Bronze and Iron Ages. The excavation in Črnolica yielded a stone grave chamber of monumental dimensions, together with fragmented and decontextualised grave goods. These included a large set of quality ceramic vessels, a considerable number of bronze vessels, glass cups, fibulae, and a horse harness. Of special importance are three bronze items fabricated in Etruria, which carry the protomas of an aquatic bird, horses, and a ram. The burial dates to the Hallstatt C2 period or the second half of the 7th century BC. Aquatic birds are positioned on all four vertexes of the presentatoio, a special type of vessel presumably used for libation rituals. Comparable items have come to light in the richest graves of the Iron Age aristocracy of Etruria, Latium Vetus and Bologna, and date to the end of the 8th and the beginning of the 7th centuries BC. The aquatic bird sculptures on the presentatoio are stylised, displaying features of the Late Italic Geometric style. This motif marks various Late Bronze and Iron Age items associated with ritual activities in the greater part of Europe, connecting them with prehistoric religious beliefs. While the assumption that they refer to the sun divinisation cult is not proven, they must have signified some prehistoric aspect of the holy or numinous. The two anthropomorphic legs with an attached horse protoma found in the Črnolica tumulus were reconstructed as a part of a tripod of small dimensions, which can be classified as a member of the so-called horse tripod family, fine products of the Italic Geometric style

  12. Anxiety, Self-Esteem and Coping With Stress in Secondary School Students in Relation to Involvement in Organized Sports / Anksioznost, Samospoštovanje In Spoprijemanje S Stresom Pri Srednješolcih V Povezavi Z Vključenostjo V Organizirano Športno Aktivnost

    Directory of Open Access Journals (Sweden)

    Dolenc Petra

    2015-09-01

    Full Text Available Cilj. Namen raziskave je bil preučiti raven samospoštovanja in anksioznosti ter uporabo različnih strategij spoprijemanja s stresom pri srednješolskih mladostnikih v povezavi z vključenostjo v redno in organizirano športno vadbo.

  13. Perfil político de los diputados mexicanos federales del pan y pri de la LXI Legislatura: apuntes para un estudio cualitativo de los políticos

    Directory of Open Access Journals (Sweden)

    Mónica Montaño Reyes

    2014-01-01

    Full Text Available El descontento ante la democracia ha pro - vocado que el estudio del capital humano que dirige las instituciones representativas cobre relevancia. En este artículo se analiza el perfil político de 382 diputados federales del Partido Acción Nacional ( pan y del Partido Revolucionario Institucional ( pri de la lxi Legislatura. El análisis contem - pla sus competencias profesionales, su trayectoria y su experiencia política. Los resultados muestran datos relevantes sobre los personajes que ejercen los puestos de representación política en México; la revisión de sus competencias personales y de su trayectoria profesional lleva a concluir que la carrera política es un factor de gran importancia para el mejor funcionamiento de la democracia representativa.

  14. Preliminary evidence for association of genetic variants in pri-miR-34b/c and abnormal miR-34c expression with attention deficit and hyperactivity disorder.

    Science.gov (United States)

    Garcia-Martínez, I; Sánchez-Mora, C; Pagerols, M; Richarte, V; Corrales, M; Fadeuilhe, C; Cormand, B; Casas, M; Ramos-Quiroga, J A; Ribasés, M

    2016-08-30

    Attention deficit and hyperactivity disorder (ADHD) is a prevalent neurodevelopmental disorder characterized by impairment to sustain attention and inability to control impulses and activity level. The etiology of ADHD is complex, with an estimated heritability of 70-80%. Under the hypothesis that alterations in the processing or target binding of microRNAs (miRNAs) may result in functional alterations predisposing to ADHD, we explored whether common polymorphisms potentially affecting miRNA-mediated regulation are involved in this psychiatric disorder. We performed a comprehensive association study focused on 134 miRNAs in 754 ADHD subjects and 766 controls and found association between the miR-34b/c locus and ADHD. Subsequently, we provided preliminary evidence for overexpression of the miR-34c-3p mature form in peripheral blood mononuclear cells of ADHD subjects. Next, we tested the effect on gene expression of single-nucleotide polymorphisms within the ADHD-associated region and found that rs4938923 in the promoter of the pri-miR-34b/c tags cis expression quantitative trait loci for both miR-34b and miR-34c and has an impact on the expression levels of 681 transcripts in trans, including genes previously associated with ADHD. This gene set was enriched for miR-34b/c binding sites, functional categories related to the central nervous system, such as axon guidance or neuron differentiation, and serotonin biosynthesis and signaling canonical pathways. Our results provide preliminary evidence for the contribution to ADHD of a functional variant in the pri-miR-34b/c promoter, possibly through dysregulation of the expression of mature forms of miR-34b and miR-34c and some target genes. These data highlight the importance of abnormal miRNA function as a potential epigenetic mechanism contributing to ADHD.

  15. Pulsed and Static Neutron Measurements in Light-Water and Heavy-Water Exponentials; Mesures par les Methodes Pulsee et Statique dans les Ensembles Exponentiels a Eau Legere et a Eau Lourde; Izmerenie impul'snykh i staticheskikh nejtronov v ehksponentsial'nykh ustanovkakh s obychnoj i tyazheloj vodoj; Mediciones por los Metodos Pulsados y Estaticos en Conjuntos Exponenciales de Agua Ligera y Agua Pesada

    Energy Technology Data Exchange (ETDEWEB)

    Parkinson, T. F.; Perez, R. B.; Fry, D. N.; Hartley, R. H.; Smith, S. P.D.; Diaz, N. J. [University of Florida, Gainesville, FL (United States)

    1964-04-15

    kotorogo mozhno vyvesti k' , primenjalsja metod impul'snyh nejtronov. Odnako dlja ustanovlenija pravomernosti impul'snogo metoda neobhodimo proizvesti sravnenie mezhdu impul'snym i staticheskim metodami. My vypolnili takie izmerenija s zamedliteljami iz H{sub 2}O i D{sub 2}O v sistemah s otrazhatelem i bez takovogo. Dlja jeksperimentov ispol'zovalsja bak diametrom 1 m. Dlja korreljacii izmerennyh postojannyh raspada s sootvetstvujushhimi-parametrami sistemy, ispol'zovalas' modificirovannaja odnogruppovaja teoreticheskaja model' (imenuemaja v dal'nejshem model'ju A). Tak, {lambda} vyrazhaetsja prostym otnosheniem {lambda}{sub 0}, k{sub {infinity}} {tau}, L{sup 2} i B{sup 2}, gde B{sup 2} udovletvorjaet kriticheskomu ravneniju dvuh zon. Vychislitel'naja shema vkljuchaet opredelenie snachala znachenija postojannoj raspada {lambda} s posledujushhej interaciej do teh por, poka ne budet najdeno znachenie V', sootvetstvujushhee kriticheskomu uravneniju i granichnym uslovijam . Byli oprobovany takzhe dve drugie modeli: Model' V-dvuhzonnaja odnogruppovaja sistema, v kotoroj B{sup 2}{sub g} v funkcii vlijanija Fermi prinimaetsja kak geometricheskij laplasian jekvivalentnoj sistemy bez otrazhatelja s otrazhatel'noj dobavkoj. Model' C -dvuhgruppovaja sistema bez otrazhatelja s otrazhatel'noj dobavkoj. Sravnenie raschetnyh i jeksperimental'nyh postojannyh raspada pokazyvaet, chto tol'ko model' A daet udovletvoritel'noe sovpadenie. Mozhno sdelat' sledujushhie vyvody: 1. Prisutstvie otrazhatelja sil'no vlijaet na fiziku impul'snoj sistemy Metod predpolozhenija otrazhatel'noj dobavki ne vsegda cenen. 2. Znachenie postojannoj raspada {lambda} ochen' chuvstvitel'no k predpolagaemomu znacheniju verojatnosti izoezhanija utechki oystryh nejtronov. Jeksperimenty pokazali, chto dlja nebol'shih geterogennyh sborok k mozhno opredelit' metodom impul'snyh nejtronov. V nastojashhee vremja provodjatsja raboty po pustotelym uranovym sterzhnjam, kotorye pozvoljajut imitirovat' organicheskie

  16. Doenças priônicas: avaliação dos riscos envolvidos na utilização de produtos de origem bovina Prionic disease: evaluation of the risks involved in using products of bovine origin

    Directory of Open Access Journals (Sweden)

    Omar Lupi

    2003-02-01

    Full Text Available Os príons são proteínas que se mostram capazes de auto-replicação apesar de, para isso, alterar o metabolismo celular. São responsáveis por inúmeras doenças em animais e no ser humano (doenças priônicas, todas elas fatais. Essas moléstias apresentam enorme variabilidade quanto ao período de incubação, de alguns meses a 40 anos. Os príons acumulam-se e destroem os neurônios, provocando quadros conhecidos como encefalopatias espongiosiformes. Discute-se a apresentação clínica, epidemiológica e histórica das doenças priônicas. O foco maior de discussão recai, no entanto, na possibilidade teórica da transmissão iatrogênica dos príons por meio das formulações tópicas que utilizam ceramidas (cerebrosídeos ou placenta de origem bovina, assim como pelo risco representado por alguns procedimentos dermatológicos, como transplantes da pele e implantes de colágeno.A prion is a protein that is capable of self replication, thereby altering a cell's metabolism. It is responsible for a number of human and animal diseases (prionic diseases, all of which are always lethal. These diseases have enormous variability in their incubation periods, ranging from a few months to forty years. Prions accumulate and destroy nerve cells, causing spongiform encephalopathy. We discuss the clinical picture, epidemiology, and historical background of prionic diseases. The major focus of the discussion lies, however, on the theoretical possibility of iatrogenic transmission of prion infection due to topical formulations using ceramides (cerebrosides or placenta of bovine origin, as well as the risk represented by some dermatological procedures such as skin grafts and collagen implants.

  17. Association of Average Telomere Length with Body-Mass Index and Vitamin D Status in Juvenile Population with Type 1 Diabetes / Povezava Povprečnih Dolžin Telomerov Z Indeksom Telesne Teže in Vitaminom D Pri Mladostnikih S Sladkorno Boleznijo Tipa 1

    Directory of Open Access Journals (Sweden)

    Tesovnik Tine

    2015-03-01

    Full Text Available Izhodišče. Sladkorna bolezen tipa 1 (SBT1 je kronična avtoimunska bolezen, pri kateri hiperglikemija ter zvišana raven oksidativnega stresa in končnih produktov glikacije skupaj z genetskimi in okoljskimi dejavniki privedeta do nastanka diabetičnih zapletov. Krajše dolžine telomerov so povezane s hiperglikemičnimi epizodami in nižjimi serumskimi vrednostmi vitamina D.

  18. Cold distribution networks. Cold distribution by two-phase refrigerant fluid. Case of ice slurries; Reseaux de distribution de froid. Distribution de froid par fluide frigoporteur diphasique. Cas du coulis de glace stabilisee (2002 - 2004). Rapport final (1er juillet 2004). Programme energie. PRI 9.1

    Energy Technology Data Exchange (ETDEWEB)

    Lallemand, A. [Institut National des Sciences Appliquees (INSA), Centre de Thermique de Lyon (CETHIL), UMR 5008, 69 - Villeurbanne (France); Mercier, P. [CEA Grenoble, Groupement pour la Recherche sur les Echangeurs Thermiques (GRETH), 38 (France); Royon, L. [Paris-1 Univ., Lab. de Biorheologie et d' Hydrodynamique Physico-Chimique, 75 (France); Dumas, J.P. [L' Ecole Nationale Superieure en Genie des Technologies Industrielles, Lab. de Thermique Energetique et Procedes, 64 - Pau (France); Guilpart, J. [URGPAN/CEMAGRE, 33 - Bordeaux (France)

    2004-07-01

    This PRI aims to participate to the development of alternate solutions for refrigerant fluids, for the cold transport and more specially a two phase refrigerant fluid: the stabilized ice slurry. The research program presented three main axis: design, realization and characterization of stabilized ice slurry, experimental studies of transport and transfer properties, study of online measurement process of the solid content. A simulation has been realized to evaluate the energy efficiency of this refrigerant use. (A.L.B.)

  19. A novel time-to-pulse height converter for fast-neutron time-of-flight techniques; Nouveau convertisseur temps-amplitude d'impulsions pour les mesures du temps de vol des neutrons rapides; Novyj vremya-amplitudnyj preobrazovatel' impul'sov dlya izmereniya vremeni proleta bystrykh nejtronov; Nuevo convertidor tiempo-altura de impulsos para tecnicas de tiempo de vuelo de neutrones rapidos

    Energy Technology Data Exchange (ETDEWEB)

    Christiansen, J [Physikalisches Staatsinstitut, Hamburg, Federal Republic of Germany (Germany)

    1962-04-15

    } s con coincidencias gamma obtenidas de una fuente de {sup 60}Co y utilizando cristales plasticos NE 102, y de 2{tau} = 1,4 {center_dot} 10{sup -9} con coincidencias gamma de 511 KeV y utilizando cristales de Nal (Te). El metodo se utilizo tambien aplicando tecnicas de haces pulsantes. En la experiencia realizada se obtuvo, a partir de una radiofrecuencia pulsadora, una sucesion de impulsos muy aguzados, con una frecuencia de 8 MHz, que se transmitio a las placas de la valvula E80T. Se obtuvo un tiempo de resolucion de 2{tau} = 1,1 {center_dot} 10{sup -9} s con neutrones de 4 MeV, utilizando cristales plasticos de 0,7 pulgadas de largo. Normalmente la region de respuesta lineal fue de 30 ns (30 {center_dot} 10{sup -9} s), pero se consiguio aumentarla hasta 120 ns. (author) [Russian] Opisyvaetsya ehlektronnyj vremya-amplitudnyj preobrazovatel' impul'sov s ispol'zovaniem metoda umnozheniya perekryvayushchikhsya impul'sov vmesto obychnogo metoda ikh slozheniya. EHto dostigaetsya polucheniem sovpadeniya linejnogo piloobraznogo impul'sa s rezko ogranichennym igol'chatym impul'som. Piloobraznyj impul's postupaet na reshetku otklonyayushchej puchok lampy (E80T), a igol'chatyj impul's napravlyaetsya na otklonyayushchie plastiny, gde on otkryvaet lampu tol'ko v techenie promezhutka vremeni priblizitel'no 5 x 10{sup -9} sekund. Plastina poluchaet zaryad, proportsional'nyj raznitse vo vremeni mezhdu nachalom piloobraznogo i nachalom igol'chatogo impul'sov. Posylaemyj plastinoj impul's rasshiryaetsya i usilivaetsya i amplituda ego sootvetstvuet velichine raznitsy vo vremeni. EHtim metodom udalos' poluchit' razreshayushchuyu sposobnost' po vremeni, ravnuyu {tau} = 7 x 10{sup -12} sekundam s iskusstvennymi impul'sami, {tau} = 3 x 10{sup -10} sekundam s sovpadeniyami dlya kobal'ta-60 pri ispol'zovanii plasticheskogo kristalla NE 102, i {tau} = 1,4 x 10{sup -9} sekundy pri sovpadeniyakh v 511 kehv pri ispol'zovanii kristallov Nal (Te). EHtot metod byl ispol'zovan takzhe v sochetanii

  20. Liver Scanning with Colloidal Radiogold; Exploration du foie a l'aide de l'or radioactif colloidal; Issledovanie pecheni pri pomoshchi radioaktivnogo kolloidal'nogo zolota; Exploracion del higado con oro coloidal radiactivo

    Energy Technology Data Exchange (ETDEWEB)

    Donato, L; Becchini, M F; Panichi, S [Centro di Medicina Nucleate, University of Pisa (Italy)

    1959-07-01

    esquemas anatomico y funcional. (author) [Russian] Avtory soobshchayut o svoem opyte v ispol'zovanii kolloidal'nog o zolota Ah{sup 198} dlya issledovaniya pecheni. Dlya polucheniya chetkogo razgranicheniya pecheni ot sosednikh organov i okru-zhayushchikh tkanej obychno trebuetsya doza mechenykh ehlementov, sootvetstvuyushcha ya 2,5 {mu}C/Kg. Vsya protsedura issledovaniya, kotoraya nachinaetsya cherez 30 minut posle vnutrivennogo vspryskivaniya, zanimaet okolo 90 minut pri ispol'zovanii polnost'yu avtomaticheskoj apparatury. Verkhnie i bokovye kontury pecheni obychno luchshe razlichayutsya chem nizhnie. Ispol'zovanie fokusiruyushchi kh kollimatorov (poristogo tipa) znachitel'no uluchshaet poluchaemye rezul'taty. V obychnykh usloviyakh pechen' yavlyaetsya edinstvennym organom, kotoryj chetko viden na ehkrane. V nekotorykh sluchayakh pri splenomegalii i tsirroza pecheni mozhno krome togo videt' i selezenku, veroyatno v svyazi s sokrashcheniem retikulo-ehndotelialyyuj sistemy pecheni. Sudya po priobretennomu avtorami opytu, dannyj metod ves'ma maloehffektive n dlya opredeleniya nebol'shikh metastazov pecheni, kotorye ne izmenyayut ob{sup e}ma i Formy poslednej. Dazhe v sluchayakh podtverzhdennog o operatsiej nalichiya mnozhestva razbrosannykh melkikh uzelkov metastaticheskog o kharaktera issledovaniya ehtim metodom dali neyasnye rezul'taty. Ispol'zovanie radioaktivnog o zolota-198 mozhet v sluchayakh rasseyannogo ili zonal'nogo rasshireniya - nezavisimo ot prichiny - sposobstvovat' vyyasnesho, vyzvany li ehti izmeneniya rasshireniem normal'no funktsioniruyushche j tkani ili zhe nalichem v tkani pecheni patologicheski kh obrazovanij. Ochen' udalnym okazalos' sochetanie radioizotopnog o issledovaniya pecheni s issledovaniem ee konturov rentgenovskimi luchami posle provedeniya pnevmoperitoneuma, tak kak ono pozvolyaet provesti sravnenie mezhdu anatomicheskim i funktsional'ny m sostoyaniem dannogo organa. Kontury, poluchaemye na stsintigrammakh i na rentgenovskikh snimkakh

  1. Economic Criteria Applied to Nuclear Materials Management; Criteres Economiques Applicables a la Gestion des Matieres Nucleaires; Ehkonomicheskie kriterii, primenyaemye pri kontrole i uchete yadernykh materialov; Criterios Economicos Aplicados a la Administracion de Materiales Nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Shelley, W. J.; Kuehn, M. N. [Mallinckrodt Chemical Works, St. Charles, MS (United States)

    1966-02-15

    procedimientos, las tecnicas, el proceso de las operaciones y la forma en que el personal lleva a cabo su cometido. Esta atencion y la voluntad de corregir los. errores permitiran asegurar el equilibrio optimo de los costos y las necesidades. (author) [Russian] Kontrol' i uchet jadernyh materialov dolzhny vsegda igrat' vspomogatel'nuju rol' pri vypolnenii osnovnoj zadachi obrabotki jadernyh materialov, t.e. vyrabotki jenergii ili proizvodstva konechnyh produktov. V svjazi s jetim otvetstvennye za kontrol' i uchet jadernyh materialov dolzhny postojanno reagirovat' na nuzhdy, svjazannye s vypolneniem osnovnoj proizvodstvennoj zadachi, i prisposablivat' neobhodimye sistemy k jetomu processu s tem, chtoby osushhestvljat' kontrol' i uchet jadernyh materialov pri optimal'nyh zatratah. V svjazi s sistemoj kontrolja i ucheta jadernyh materialov neobhodimo tshhatel'no izuchat' rjad faktorov, kotorye vlijajut na ee stoimost'. Razrabotannaja sistema kontrolja dolzhna dopolnjat' proizvodstvennyj process, obespechivaja minimal'nye rashody na soderzhanie personala, analizy i minimal'nyj pereryv proizvodstvennogo processa. Sistema kontrolja dolzhna sochetat'sja s proizvodstvnnymi potrebnostjami dlja togo, chtoby poluchennaja kolichestvennaja informacija bystro postupala licam, osushhestvljajushhim kontrol' za rabotoj. Sistema registracii i vydachi svedenij dolzhna obespechivat' maksimum dopolnitel'nyh dannyh. Ona dolzhna byt' shodnoj s sistemami, kotorye ispol'zujut postavshhiki i potrebiteli, i davat', pri vozmozhnosti, dopolnitel'nuju informaciju, svjazannuju s partijami jadernogo materiala. Dannye,poluchaemye dlja kontrolja za jadernymi materialami, dolzhny byt' tol'ko takimi, kotorye neobhodimye celjah obespechenija togo, chtoby ne bylo nikakih znachitel'nyh poter', hishhenij, nezakonnogo prisvoenija ili ispol'zovanija ne po naznacheniju jadernyh materialov. Dopolnitel'nye dannye dolzhny podvergat'sja tochno takoj zhe neobhodimoj strogoj proverke, kotoroj podvergajutsja dannye

  2. Scanning of Bone Marrow in Haematopoietic Disorders; Gammagraphie de la Moelle Osseuse dans les Troubles Hematopoietiques; Skennirovanie kostnogo mozga pri gematopoehticheskikh narusheniyakh; Exploracion de la Medula Osea en Casos de Trastornos Hematopoyeticos

    Energy Technology Data Exchange (ETDEWEB)

    Kniseley, R. M.; Andrews, G. A.; Edwards, C. L.; Tanida, R. [Oak Ridge Institute of Nuclear Studies, TN (United States)

    1964-10-15

    individualmente las costillas. Cuando la medula esta dilatada se puede visualizar la zona de la rodilla, incluido el espacio articular. Los autores han logrado establecer una correlacion entre estos centelleogramas, los resultados de biopsias por aspiracion y centelleogramas lineales. Como se requieren dosis relativamente elevadas de oro-198, se esta estudiando la posibilidad de emplear otros isotopos. Tambien se esta ensayando un antropogammametro perfeccionado con el fin de facilitar la exploracion. (author) [Russian] Skennirovanie mozhet pomoch' pri ocenke ob{sup e}ma i raspredelenija gematopojeticheskogo kost- nogo mozga -trudnoj zadache dlja aspiracii ili biopsii. S pomoshh'ju skennera s zolotym- vol'framovym fokusirujushhim kollimatorom diametrom 61 mm v Okridzhskoj nacional'noj laboratorii posle vnutrivennogo vvedenija kolloidal'nogo zolota-198 byli polucheny chetkie ochertanija kostnogo mozga, prichem izvestno, chto retikulo-jendotelial'naja funkcija kostnogo mozga sootvetstvuet oblastjam gematopojeza. Skennirovanie provodilos' u pacientov s normal'nym gematopojezom i s raznymi narushenijami krovi, naprimer s ochagovym porazheniem kostnogo mozga, ostroj i hronicheskoj lejkemiej, istinnoj policitemiej, mielofibrozom, mnozhestvennoj mijelomoj i limfomoj. V svjazi s retikulojendotelial'noj aktivnost'ju v pecheni i selezenke izobrazhenie kostnogo mozga zatemneno v central'nom otdele. Ochercheny tela pozvonkov, mezhpozvonochnye diski, kosti taza i dlinnye kosti, a v grudnoj kletke grudina i grudnye pozvonki. Obnaruzheny takzhe ochagovye porazhenija. Otdel'nye rebra ne vidny iz-za dyhatel'nyh dvizhenij. Pri razrastanii kostnogo mozga ego mozhno videt' v kolennoj oblasti, vkljuchaja oblast' sustava . Pojavilas' vozmozhnost' svjazat' jeti skenogrammy s dannymi aspiracionnoj biopsii i s linejnymi diagrammami. V svjazi s tem, chto trebujutsja sravnitel'no bol'shie dozy zolota-198, issleduetsja vozmozhnost' primenenija drugih izotopov. Dlja poluchenija skennogramm, imejushhih bol

  3. The Prying Eye: Ethics of Photojournalism.

    Science.gov (United States)

    Mundt, Whitney R.; Broussard, E. Joseph

    A national sample of journalists, consisting of 700 television news photographers, newspaper photographers, television news directors, newspaper editors, and journalism educators, was asked to evaluate the ethical conduct in eight situations involving alleged invasion of privacy by photography. The respondents found journalistic conduct to be…

  4. UPORABA DIGITALNEGA FOTOAPARATA PRI MULTIMODALNEM NADZORU OKOLJA

    OpenAIRE

    Sedej, Gašper

    2011-01-01

    V diplomskem delu opisujemo sistem, ki smo ga razvili za multimodalni oddaljeni nadzor okolja. Sistem je sestavljen iz več komponent, med katerimi ima ključno vlogo digitalni fotoaparat. Ta je uporabljen za zajemanje žive slike in hkrati tudi fotografij z visoko ločljivostjo. Fotoaparat nadzira računalniški strežnik, ki poganja programsko opremo gPhoto. Video zajemamo preko fotoaparatovega analognega priključka in slikovnega pretvornika, ki pretvori analogni video signal v digitalnega. Strežn...

  5. Pri delezhke Tsheburashki mehh letit po storonam

    Index Scriptorium Estoniae

    2007-01-01

    Vene ärimees ostab ameerika kompaniilt Films by Jove kollektsiooni nõukogude multifilmide (547 filmi) levitamisõigused, et anda need üle loodavale laste telekanalile Venemaal. Lähemalt laste multifilmide lemmikkangelasest Tsheburashkast, mille loojaks kirjanik Eduard Uspenski

  6. Comparison of Spin Wave Theory with Neutron Scattering Results for MnF{sub 2}; Comparaison entre la Theorie de l'Onde de Spin et les Resultats Obtenus par la Diffusion des Neutrons dans MnF{sub 2}; Sravnenie teorij spinovoj volny s rezul'tatami rasseyaniya nejtronov dlya MnF{sub 2}; Estudio Comparativo, en el MnF{sub 2}, de la Teoria Ondulatoria del Spin y de los Resultados de la Dispersion Neutronica

    Energy Technology Data Exchange (ETDEWEB)

    Low, G. G. [Atomic Energy Research Establishment, Harwell, Berks (United Kingdom)

    1965-04-15

    %, y esto ocurre unicamente a menos de un grado, aproximadamente, del punto de Neel. Et autor describe sucintamente las probables consecuencias de un termino bicuadratico de intercambio en el MnF{sub 2}, y llega a la conclusion de que tal intercambio, de producirse, es muy pequeno. (author) [Russian] V rezul'tate jeksperimentov po neuprugomu rassejaniju, kotorye proveli nedavno Okazaki i Turberfil'd, poluchena prjamaja mera dispersii spinovoj volny v MnF{sub 2} i pri 4,2 Degree-Sign K i pri bolee vysokih temperaturah, priblizhajushhihsja k tochke Nila. Nizkotemperaturnye rezul'taty vmeste s drugimi magnitnymi svojstvami pozvoljajut ocenit' s nekotoroj tochnost'ju razlichnye obmennye konstanty v MnF{sub 2}. Ispol'zuja jeti konstanty, byl primenen opisannyj Oguchi formalizm teorii spinovoj volny dlja antiferromagnetikov v celjah teoreticheskogo predskazanija zavisimosti dispersii spinovoj volny ot temperatury. Ni odin iz imejushhihsja parametrov ne zatragivaetsja, i teoreticheskie krivye dispersii mozhno sravnit' s jeksperimental'nymi rezul'tatami v otnoshenii bolee vysokih temperatur v kachestve proverki teorii spinovoj volny. Byli prinjaty v raschet chislennye znachenija jenergii spinovyh voln i byli vzjaty integral' po zone Brilljujena, i tem samym udalos' izbezhat' ispol'zovanija nekotoroj formy razlozhenija v rjad po temperature. Uchteny dinamicheskie vzaimodejstvija mezhdu parami spinovyh voln, odnako kinematicheskie jeffekty ne prinimalis' vo vnimanie. Byla proizvedena perenormirovka jenergij spinovyh voln. Jeto-vazhnyj faktor dlja T/T{sub N} Greater-Than-Or-Equal-To Vulgar-Fraction-One-Half . Fakticheski teoreticheskie i jeksperimental'nye dannye v znachitel'noj stepeni sovpadajut pri temperaturah, sootvetstvujushhih priblizitel'no 90% tochki Nila. Opasno jekstrapolirovat' jetot rezul'tat k sistemam s men'shimi spinami, poskol'ku, verojatno, kinematicheskie jeffekty igrajut znachitel'no bol'shuju rol' v takih sluchajah. Dlja MnF{sub 2}, gde S = 5/2, soglasno

  7. Development of Geiger-Mueller counters for operation at high temperatures; Mise au point de compteurs Geiger-Mueller fonctionnant a haute temperature; Razrabotka schetchikov Gejgera-Myullera, rabotayushchikh pri povyshennoj temperature; Contadores Geiger-Mueller que funcionan a temperaturas elevadas

    Energy Technology Data Exchange (ETDEWEB)

    Draghicescu, M [Institut de Physique Atomique, Bucarest (Romania)

    1962-04-15

    Counters of this type are necessary for radioactive logging at great depths; they have to operate normally at temperatures up to 180{sup o}C. In order to preserve their characteristics under such conditions, the work function of the cathode has been improved by a special treatment. Tests have been made on counters with graphite, copper and wolfram cathodes in a glass envelope. The method is simple, and can easily be employed in industry. (author) [French] De tels compteurs sont necessaires pour le sondage radioactif aux grandes profondeurs; ils doivent fonctionner dans des conditions normales jusqu'a la temperature de 180{sup o}C. Afin qu'ils puissent conserver leurs caracteristiques jusqu'a cette temperature, on a agi sur le travail de sortie de la cathode par un traitement adequat. On a fait l'essai sur des compteurs avec cathode de graphite, de cuivre ou de tungstene, dans un ballon de verre. La methode proposee est simple et peut etre appliquee facilement dans l'industrie. (author) [Spanish] Se requiere este tipo de contador para la determinacion de la radiactividad a grandes profundidades; debe ser capaz de funcionar normalmente a temperaturas hasta de 180{sup o}C. A fin de que sus caracteristicas se conserven inalteradas hasta tales temperaturas, se ha modificado la funcion de trabajo del catodo mediante un tratamiento adecuando. Se han ensayado contadores con catodo de grafito, de cobre o de wolframio en un balon de vidrio. El metodo propuesto es simple y puede aplicarse facilmente en la industria. (author) [Russian] Podobnye schetchiki neobkhodimy dlya radioaktivnogo karottazha na bol'shikh glubinakh; oni dolzhny funktsionirovat' v normal'nykh usloviyakh pri temperature do 180{sup o}C. Nakonets, dlya togo, chtoby oni mogli sokhranyat' svoi osobennosti pri ehtoj temperature, bylo obrashcheno vnimanie na rabotu katodnogo vykhoda pri pomoshchi sootvetstvuyushchej obrabotki. Byl proveden opyt na schetchikakh s grafitovym, mednym ili vol'framovym katodom v

  8. The Relationship between Blood Injury and Absorbed Dose in Criticality Accidents; Relations entre la Deterioration du Sang et la Dose Absorbee lors d'Accidents Dus a la Formation d'un Etat Critique; Svyaz' mezhdu velichinoj pogloshchennoj dozy pri avariyakh na reaktorakh, dostigshikh kritichnosti, i narusheniem sostava krovi; Relacion entre las Hemolesiones y la Dosis Absorbida en los Accidentes de Criticidad

    Energy Technology Data Exchange (ETDEWEB)

    Dennis, J. A. [Health Physics and Medical Division, Atomic Energy Research Establishment, Harwell (United Kingdom)

    1964-03-15

    absorbidas por el tronco humano. Examina la relacion entre estas estimaciones de dosis y los valores del diagrama del recuento sanguineo basado en el sistema de valoracion propuesto por N. Wald y G. E. Thoma para las desviaciones con respecto a los indices normales de linfocitos, neutrofilos y plaquetas en la sangre periferica. Demuestra que un parametro basado en la dosis gamma absorbida superficialmente y en la actividad del {sup 24}Na en la sangre concuerda mas satisfactoriamente con el diagrama mencionado y se presta mejor para pronosticar la gravedad de una radiolesion que cualquiera de las estimaciones dosimetricas corrientes. En general, la EBR de las dosis de particulas pesadas de retroceso deducida de estas observaciones armoniza con los valores obtenidos en experimentos realizados con perros. (author) [Russian] Dlja opredelenija dozy, pogloshhennoj poverhnost'ju tela cheloveka,vychisljalis' dozy nejtronnogo i gamma-obluchenij dlja lic, podvergshihsja oblucheniju pri avarijah na reaktorah, dostigshih kritichnosti. Izuchalas' svjaz' mezhdu jetimi dozami i ''profil'nym sostavom krovi'' po metodu M. Uolda i Dzh. Toma dlja otklonenij ot normy limfocitov, nejtrofil'nyh lejkocitov i trombocitov. Pokazano, chto velichina dozy, poluchennaja pri podschete poverhnostnoj pogloshhennoj dozy gamma- obluchenija i urovnja aktivnosti natrija-24 v krovi, v bol'shej stepeni soglasuetsja s profil'nym sostavom krovi i javljaetsja bolee nadezhnym prognosticheskim priznakom pri ocenke ste peni luch ev o go porazhenija, chem standartnye metody ocenki doz obluchenija. Otnositel'naja biologicheskaja jeffektivnost' doz tjazhelyh chastic otdachi, poluchennyh pri jetih nabljudenijah, v obshhem so glasuetsja s velichinami, poluchennymi v rezul'tate jeksperimentov na sobakah. (author)

  9. Compounds Labelled with Low-Energy Gamma-Ray Emitters for Medical Isotope Scanning; Gammagraphie au Moyen de Composes Marques avec des Emetteurs Gamma de Faible Energie; Soedineniya, ispol'zuemye pri meditsinskom izotopnom skennirovanii, mechennye s pomoshch'yu gamma-izluchatelej nizkoj ehnergii; Compuestos Marcados con Emisores Gamma de Baja Energia para la Exploracion Medica Mediante Isotopos

    Energy Technology Data Exchange (ETDEWEB)

    Scheer, K. E.; Zum Winkel, K.; Georgi, M. [Czerny-Krankenhaus der Universitat Heidelberg, Federal Republic of Germany (Germany)

    1964-10-15

    por los tejidos del cuerpo limita la profundidad a que las lesiones pueden ser visualizadas. En organos de grandes dimensiones, como el higado, se evita la superposicion de las radiaciones procedentes de la parte posterior del organo, lo que permite detectar mejor las lesiones superficiales. El. emisor,gamma de baja energia mas importante es el {sup 125}I. Para la exploracion de la tiroides se utiliza en forma de yoduro. El Rosa Bengala marcada con {sup 125}I es un compuesto adecuado para la exploracion del higado. Tambien puede utilizarse albumina desnaturalizada por el calor, marcada con {sup 125}I. Para la exploracion del rinon se ha comprobado que el hipuran marcado con {sup 125}I da buenos resultados cuando se inyecta por via intramuscular con hialuronidasa a fin de lograr un nivel uniforme de radiactividad en este organo. Otro emisor gamma de baja energia muy util para la exploracion medica es el {sup 197}Hg que puede utilizarse en forma de cloruro para la exploracion de los rinones y el bazo. Deben tomarse precauciones especiales para evitar la superposicion del rinon y el bazo. La exploracion da mejores resultados si se utiliza {sup 197}Hg marcado con neohidrina. Este compuesto puede emplearse tambien para la localizacion de tumores del cerebro. Los autores presentan centelleogramas tipicos de tumores de la tiroides, del higado, del bazo, del rinon y del cerebro obtenidos con emisores gamma de baja energia y con nuclidos y compuestos tradicionales, y examinan las ventajas que ofrecen los primeros. (author) [Russian] Gammaizluchateli nizkoj jenergii imejut osobye preimushhestva pri ispol'zovanii ih dlja medicine - skogo scintilljacionnogo skennirovanija po dvum prichinam: 1. Svincovaja zashhita kollimatorov znachitel'no jeffektivnee. Pojetomu mozhno primenjat' tonkostennye kollimatory s mnogokratnoj fokusirovkoj, dobivajas' pri jetom naibol'shego geometricheskogo razreshenija, i v svjazi s jetim- vozmozhnosti obnaruzhenija nebol'shih porazhenij. 2. Pogloshhenie

  10. El silenciamiento de la proteína priónica celular (PrPC mediante RNA de interferencia (siRNA reduce la infección por HSV-1 y HSV-2 en células SK-SY5Y

    Directory of Open Access Journals (Sweden)

    Elizabeth Ortega-Soto

    2012-01-01

    Full Text Available Las encefalopatías espongiformes transmisibles (EETs son enfermedades neurodegenerativas fatales que afectan a humanos y ciertas especies animales. La hipótesis más aceptada indica que el agente infeccioso, denotado como prion y compuesto principalmente por la Proteína Priónica Scrapie (PrPSc, corresponde a una conformación anormal de una proteína codificada por el huésped denominada Proteína Priónica Celular (PrPC, cuya función es aún desconocida; sin embargo, la expresión ubicua de PrPC así como su elevado grado de conservación entre especies, sugieren un papel importante para esta proteína. En este trabajo se detectó a la PrPC en diferentes tipos celulares incluyendo un cultivo primario de células de peces (Tilapia, Oreochromis spp.. Además, basándonos en la secuencia de la PrPC humana, se diseñó un RNA de interferencia (siRNA con el fin de silenciar el gen PRNP en células neuronales SK-SY5Y. El siRNA diseñado inhibió la expresión de PrPC a lo largo de las 96 h post-transfección y las células silenciadas fueron menos susceptibles a la infección por HSV-1 y HSV-2, en comparación con células no transfectadas con el siRNA.

  11. Scanning Techniques for Brain-Tumour, Localization; Techniques Scintigraphies pour la Iocalisation des Tumeurs Cerebrales; Tekhnika skennirovaniya pri opredelenii lokalizatsii opukholej mozga; Tecnicas Centelleograficas para la Localizacion de Tumores Cerebrales

    Energy Technology Data Exchange (ETDEWEB)

    Duggan, M. H.; Brice, J.; Jones, E.; Mallard, J. R.; Myers, M. L. [Department Of Medical Physics, Postgraduate Medical School, Hammersmith Hospital, London (United Kingdom)

    1964-10-15

    facilitar la percepcion de anomalias no muy alejadas de los limites de deteccion en sistemas detectores moviles. En la memoria se estudia la posibilidad de utilizar analizadores multicanales para aplicar esas tecnicas y permitir al mismo tiempo un nuevo y util procedimiento de presentacion del centelleograma tanto en los sistemas moviles como en los estacionarios. (author) [Russian] Ustanovka dlja cvetnogo skennirovanija (Annotacija SM-51/25) ispol'zovalas' dlja sken- nirovanija dvuh vidov opuholej mozga: v odnom sluchae po pozitronnomu izlucheniju As{sup 74} , v drugom-po gamma-izlucheniju mechennogo J{sup 131} al'bumina s ispol'zovaniem fokusirujushhego kollimatora. Sravnivajutsja rezul'taty jetih dvuh vidov issledovanij. Mjet'jus,pri issledovanii opuholej u krys,pokazal, chto limonnokislyj Bi'uti javljaetsja osobenno udobnym materialom dlja opredelenija lokalizacii opuholej mozga, i v nastojashhee vremja provoditsja tret'ja serija klinicheskih issledovanij s primeneniem jetogo materiala, ispol'zovaniem gamma-detektirovanija i fokusirujushhego kollimatora. Privodjatsja predvaritel'nye rezul'taty jetih issledovanij . Fokusirujushhie kollimatory, primenennye vmeste s gamma-izluchajushhimi izotopami, imejut glubokij geometricheskij fokus; polucheny izoschetnye harakteristiki dlja tochechnyh istochnikov, ne zavisjashhie ot glubiny do 20sm. Jeksperimental'nye rezul'taty, poluchennye dlja celogo rjada kollimatorov, javilis' osnovoj dlja konstrukcii takih kollimatorov s zadannoj specifikaciej. Stacionarnoe detektornoe skennirovanie u bol'nyh s opuholjami mozga bylo provedeno s pomoshh'ju gamma-kamery s vosproizvodjashhim zapominajushhim ustrojstvom. Preimushhestva takoj apparatury zakljuchajutsja v bol'shej chuvstvitel'nosti i bolee bystroj vizualizacii kartiny raspredelenija radioaktivnosti, chto daet vozmozhnost' provedenija issledovanij v dinamike. K problemam, voznikajushhim v svjazi s jetoj apparaturoj, otnosjatsja trudnost' markirovki anatomicheskih struktur i

  12. The Use Of {sup 15}N in the Study of Nitrogen Uptake and Metabolism in Plants; Primenenie azota-15 pri izuchenii vzaimodejstviya azotnykh udobrenij s pochvoj i usvoeniya ikh rasteniyami

    Energy Technology Data Exchange (ETDEWEB)

    Gyrbuchev, I.; Dinchev, D. [Institut Pochvovedenija Im.N. Pushkarova, Sofija (Bulgaria)

    1968-07-01

    sledujushhih svobodnyh aminokislotah: arginine, gistidine, lizine i amidoasparagine. V svjazannyh aminokislotah - alanine, treonine, serine i glicine - soderzhalos' naibol'shee kolichestvo 15N. Primenenie fosfora uvelichivalo kolichestvo azota v aminokislotah. Ustanovleno, chto oborot azota byl samym bol'shim v hlorofille i konstitutivnyh belkah. Pri issledovanii kachestva pshenichnyh zeren bylo ustanovleno, chto naibol'shee kolichestvo azota bylo obnaruzheno v gljutenine, zatem vo frakcijah ostatochnogo azota, prolamina i vodorastvorimyh azotnyh soedinenijah. Naimen'shee kolichestvo bylo obnaruzheno v albumine i globuline.

  13. Report of the PRI biofuel-ethanol; Rapport du PRI biocarburant-ethanol

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    This evaluation report presents three research programs in the framework of the physiological behavior of the yeast ''Saccharomyces cerevisiae'', with high ethanol content. These studies should allowed to select an efficient yeast for the ethanol production. The first study concerns the development of an enzymatic process for the hydrolysis and the fermentation. The second study deals with the molecular and dynamical bases for the yeast metabolic engineering for the ethanol fuel production. The third research concerns the optimization of performance of microbial production processes of ethanol. (A.L.B.)

  14. Report of the PRI biofuel-ethanol; Rapport du PRI biocarburant-ethanol

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    This evaluation report presents three research programs in the framework of the physiological behavior of the yeast ''Saccharomyces cerevisiae'', with high ethanol content. These studies should allowed to select an efficient yeast for the ethanol production. The first study concerns the development of an enzymatic process for the hydrolysis and the fermentation. The second study deals with the molecular and dynamical bases for the yeast metabolic engineering for the ethanol fuel production. The third research concerns the optimization of performance of microbial production processes of ethanol. (A.L.B.)

  15. Detennination Qf Optimuni on-fann Seed Pri~ing Time for Maize ...

    African Journals Online (AJOL)

    maize seed to on-far111 priming is an important development which can be used to improve ... Key words: semi-arid: crop establishment; sorghum; maize: on-farm seed priming; Zimbapwe. ... faster growth and higher yield after seed prim-, ing.

  16. Comparison of Clinical and Laboratory Responses in Sheep and Dogs following Whole-Body Exposures to 250-Kvp X-Rays and Fission-Spectrum Neutrons; Etude Comparee Clinique et en Laboratoire, des Reactions de Moutons et de Chiens a la Suite d'une Exposition du Corps Entier a des Rayons X de 250 Kv-Crete et a des Neutrons de Fission; Sravnenie klinicheskikh i laboratornykh dannykh o reaktsii ovets i sobak na obluchenie vsego tela rentgenovskimi luchami pri pikovom napryazhenii 250 Kv i nejtronami spektra deleniya; Estudio Comparado, Clinico y de Laboratorio, de las Reacciones de Ovejas y Perros Consecutivas a la Irradiacion del Cuerpo Entero con Rayos X de 250 KVp y Neutrones de Fision

    Energy Technology Data Exchange (ETDEWEB)

    Quaife, M. A.; Boer, J. de; Jones, R. K.; Ichiki, A. T.; Godden, W. R.; Davis, H.; Engel, R. E. [Kirtland AFB, New Mexico (United States)

    1964-05-15

    parametro de la hematopoyesis con fines diagnosticos. Las alteraciones patologicas mas significativas se circunscribieron a los pulmones, donde se observaron extensas hemorragias perivasculares. Mediante el microscopio se confirmo que la zona hemorragica estaba situada entre el tejido conjuntivo adventicio y los vasos periarteriales. El indice de mortalidad a los 30 dias, en los perros, fue del 50% despues de la exposicion a los neutrones y del 93% despues de la exposicion a los iayos X. En cuanto a las ovejas, los neutrones ocasionaron una mortalidad de 22% y los rayos X, una de 80%. (author) [Russian] Pjatnadcat' ovec i vosem' sobak byli oblucheny dozoj 400 rad (vozdushnaja doza) pul'sirujushhih nejtronov spektra delenija, a takoe zhe kolichestvo ovec i 14 sobak -dozoj 400 rentgen (sredinnaja vozdushnaja doza) rentgenovskih luchej pri pikovom naprjazhenii 250 kv. Sem' ovec i chetyre sobaki byli ostavleny neobluchennymi dlja kontrolja. Kontrol'nye dannye poluchali v techenie dvuh nedel', predshestvovavshih oblucheniju, a takzhe reguljarno i chasto posle n ego . U ovec naibolee opredelennym klinicheskim izmeneniem bylo polnoe vypadenie shersti k 51 dnju posle obluchenija. Obnazhivshajasja kozha byla rozovogo cveta, ochen' napominajushhego slabyj rumjanec. U sobak vypadenija shersti ne bylo. Posle obluchenija u oboih vidov zhivotnyh rezko upalo soderzhanie formennyh jelementov krovi, nejtrofil'nyh lejkocitov, limfocitov i trombocitov. Primerno na 24-j den' posle obluchenija vosstanovlenie kolichestva lejkocitov bylo otmecheno to l'ko u zhivotnyh, podvergshihsja oblucheniju nejtronami. Urovni trombocitov snizilis' do bezopasno go urovnja u oboih vidov zhivotnyh, no u sobak jeto proizoshlo neskol'ko ran'she. Vosstanovlenie nastupilo na tret'ej nedele posle obluchenija u oboih vidov zhivotnyh, podvergshihsja oblucheniju nejtronami, no ne proizoshlo u zhivotnyh, obluchennyh rentgenovskimi luchami. Issledovanija gematokrita pokazali znachitel'noe sokrashhenie gemoglobina u oboih

  17. Direct Measurement of Tritium in Biological Materials with the Liquid Scintillation Counter; Determination quantitative directe du tritium dans les substances biologiques, au moyen de compteurs a scintillations a liquides; Neposredstvennoe izmerenie kolichestva tritiya v biologicheskikh materialakh pri pomoshchi zhidkogo stsintillyatsionnogo schetchika; Determinacion cuantitativa directa del tritio en sustancias biologicas mediante contadores de centelleador liquido

    Energy Technology Data Exchange (ETDEWEB)

    Halvorsen, K [Institutt for Atomenergi, Kjeller, Lillestroem (Norway)

    1962-01-15

    muestras de tejidos de raton a los que se habia inyectado previamente timidina marcada con tritio. Despues de inyectar al raton una dosis del orden de 1 {mu}c de timidina tritiada por gramo de peso corporal, se pudieron seguir durante un mes las transformaciones metabolicas de la timidina incorporada al acido desoxirribonucleico (DISIA) de los distintos tejidos. (author) [Russian] V literature uzhe soobshchalos' o sposobakh izmereniya kolichestva tritiya v tkanyakh zhivotnykh i v izolirovannykh srezakh tkanej. Odnako pri vsekh opisyvaemykh rabotakh dlya otscheta impul'sov obraztsov primenyalsya zhidkostnyj stsintillyatsionnyj spektrometr sovpadenij. Pri vypolnenii nastoyashchej raboty dlya izmerenij byl ispol'zovan zhidkostnyj stsintillyatsionnyj schetchik s odnim fotoehlementom. Issledovalis' glavnym obrazom neposredstvennoe rastvorenie tkanej zhivotnykh v giamine 10-KH i otschet impul'sov vzvesi liofilirovannoj tkani v stsintilliruyushchikh gelyakh. Razlichnye tkani, kak naprimer, pechen', kishechnik, krov' i kozha mogut byt' neposredstvenno rastvoreny v giamine i aktivnost' ikh izmerena s tochnost'yu do 10-15 protsentov. Budut obsuzhdeny metody vvedeniya popravki na gashenie i nekotorye yavleniya fosforestsentsii, poskol'ku oni vliyayut na otschet impul'sov v schetnom ustrojstve s edinym fotoehlementom. KHotya chuvstvitel'nost' ehtogo metoda predstavlyaetsya neskol'ko men'shej, chem pri ispol'zovanii schetchika sovpadenij, odnako ehtot metod udovletvoritelen dlya mnogikh vidov primenenij. Predstavlyaemaya rabota byla provedena na obraztsakh tkanej myshi posle predvaritel'noj in{sup e}ktsii mechennogo tritiem timidina. Pri vpryskivanii v mysh' dozy priblizitel'no v 1 mikrokyuri tritirovannogo timidina na gramm vesa ee tela, metabolicheskaya sud'ba timidina, pogloshchennogo deoksiribonukleinovoj kislotoj razlichnykh tkanej, mogla byt' proslezhena v techenie tselogo mesyatsa. (author)

  18. Metodologija postavljanja diferencijalnih jednačina pri istraživanju dinamičkih parametara konstrukcije lansirne rampe na vozilu točkašu / Methodology make of differential equations at investigation of dynamic parameters of constructions of launcher on vehicle

    Directory of Open Access Journals (Sweden)

    Vlado P. Đurković

    2007-07-01

    Full Text Available U radu se određuju optimalni parametri konstrukcije lansirne rampe: položaj tačke vešanja hidrocilindra na rampi, dužina i materijal rampe, koeficijent viskoznog trenja ulja u hidrocilindru, koeficijent krutosti lansirne rampe i hidrocilindra, poprečni presek rampe, itd. Radi toga postavlja se mehanički model sa tri stepena slobode kretanja i odgovarajući model u vidu sistema od tri nelinearne diferencijalne jednačine drugog reda. Numeričkom analizom dobijenog matematičkog modela (primenom programskog jezika Compaq Visual Fortran, Version 6.5 dolazi se do optimalnosti pojedinih parametara. Dobijeni rezultati, predstavljeni u grafičkoj formi, mogu da budu veoma korisni projektantima raketnih lansera, kako stabilnih, tako i mobilnih, pri razvoju novih konstrukcija i modifikaciji postojećih. / This paper determines optimal construction parametrics of a missile launcher place of hydro-cylinder on launcher, length and material of ramp of launcher coefficient of the viscosity of friction oil in hydro-cylinder, coefficient of stiffness of launcher and hydro-cylinder, cross-section of launcher etc. In this purpose appointment mechanical model with three degrees of freedom motion and analogous model of system of three nonlinear differential equation second order. Numerical analysis obtained mathematical model (programming with language Compaq Visual Fortran, Version 6.5 coming to optimal parameters. Obtained results that are presented in graphical shapes can be very useful for designing stable and mobile missile launchers, both for development of new constructions and modification of existing structures.

  19. The adsorption of hydrogen on a molecular sieve at -196{sup o}C and the observation of an isotope effect; Adsorption d'hydrogene sur un tamis moleculaire a -196{sup o}C et observation d'un effet isotopique; Absorbtsiya vodoroda na molekulyarnom fil'tre pri -196{sup o} i nablyudenie rezul'tatov dejstviya izotopov; Adsorcion de hidrogeno en un tamiz molecular a -196{sup o}C y observacion de un efecto isotopico

    Energy Technology Data Exchange (ETDEWEB)

    Duncombe, W G [Wellcome Research Laboratories, Beckenham, Kent (United Kingdom)

    1962-03-15

    adsorbio en el tamiz molecular cerca del 99 % del hidrogeno inicial antes de comenzar la desorcion por bombeo. Por lo tanto, parece probable que el considerable fraccionamiento observado tenga lugar principalmente durante la desorcion y que el efecto carezca de importancia cuando el tamiz se emplea para manipular pequenos volumenes de isotopos del hidrogeno ya que, por lo general, la desorcion total se efectuara por calentamiento. (author) [Russian] Ispytyvalsya molekulyarnyj fil'tr Linde 4 A v kachestve vozmozhnogo sredstva obrashcheniya s nebol'shimi ob{sup e}mami izotopov vodoroda v vakuume, vmesto primenyayushchegosya v nastoyashchee vremya nasosa Toiplera. Davlenie ravnovesiya (P) izmeryaetsya razlichnymi ob{sup e}mami (V) vodoroda, absorbiruemogo odnim grammom fil'tra pri temperature -196{sup o}. EHksperimenty s aktivirovannym drevesnym uglem pokazyvayut preimushchestvo fil'tra kak absorbenta vodoroda. Odin gramm fil'tra v sisteme s ob{sup e}mom v 500 ml absorbiruet okolo 97 % odnogo ml obraztsa vodoroda. Absorbtsiya neznachitel'na pri temperature -78{sup o}, i desorbtsiya yavlyaetsya kolichestvennoj i b'kpro protekaet pri komnatnoj temperature. Vozmozhnost' rezul'tatov dejstviya izotopa izuchalas' putem absorbirovaniya izmeryaemykh ob{sup e}mov tritiya (5 millikyuri/mol') pri ravnomernom davlenii okolo 5 mm, pri ehtom proiskhodilo vykachivanie sistemy v periode do 15 minut i izmerenie ob{sup e}ma ostatochnogo vodoroda. Poslednij prevrashchalsya kolichestvenno v vodu, zatem v butan i gaz. Udel'naya aktivnost' byla vsegda vyshe, chem aktivnost' tritiya, kotoryj prokhodil 10 tsiklov absorbtsii i desorbtsii bez promezhutochnogo vykachivaniya s tem, chtoby ne bylo nikakikh chistykh poter' gaza. EHto imelo takuyu zhe udel'nuyu aktivnost', kak u neobrabotannogo tritiya, vzyatogo iz rezervnoj kolby. Bylo obnaruzheno, chto logarifm (ostatochnyj ob{sup e}m/nachal'nyj ob{sup e}m) proportsionalen 1/logarifm (ostatochnaya udel'naya aktivnost'/ nachal'naya udel'naya aktivnost') v

  20. A Double Slow Neutron Spectrometer; Spectrometre double pour neutrons lents; Dvojnoj spektrometr medlennykh nejtronov; Espectrometro doble para neutrones lentos

    Energy Technology Data Exchange (ETDEWEB)

    Bondarenko, I I; Liforov, V G; Nikolaev, M N; Orlov, V V; Parfenov, V A; Semenov, V A; Smirnov, V I; Turchin, V F [Fehi, Moscow, SSSR (Russian Federation)

    1963-01-15

    The neutron spectrometer described in the paper is intended for measurements of the angular and energy distribution of monochromatic slow neutrons, inelasticaily scattered by liquid and solid bodies. Experiments of this type permit detailed information to be obtained concerning the dynamics of the atoms in various aggregate states of a substance. The spectromeeter is based on the time-of-flight method. The pulse source of neutrons is the IBR (1) reactor. A mechanical interrupter, rotating synchronously with the disc of the IBR and having a prescribed phase shift, serves as the monochromator. A special phasing system ensures a phasee stability better than 0.5{sup o}. The neutrons scattered by the sample are recorded by a scintillation detector set at a given angle to the neutron beam. The resolving power of the spectrometer is - 15 {mu}s/m. The paper gives a detailed description of the construction of the spectroscope and its characteristics. (author) [French] Le spectrometre neutronique decrit dans le memoire est destine a mesurer la distribution en energie, la distribution angulaire et la diffusion inelastique des neutrons lents monochromatiques dans des liquides et des solides. Les experiences de ce genre permettent d'obtenir des renseignements detailles sur la dynamique des atomes dans de divers etats de la matiere. Le spectrometre est fonde sur la mesure du temps de vol. Comme source puisee de neutrons on a utilise le reacteur IBR-1. Le systeme monochromateur etait constitue par un interrupteur mecanique en rotation synchronisee avec celle du disque du reacteur IBR, avec un dephasage determine. Un dispositif special de dephasage assure la stabilite de la phase a 0,5{sup o} pres. La diffusion des neutrons par l'echantillon est enregistree a l'aide d'un detecteur a scintillations dispose sous un angle determine par rapport au faisceau de neutrons. Le pouvoir de resolution du spectrometre est d'environ 15 {mu}s/m. Les auteurs decrivent en detail la construction du spectrometre et donnent des indications precises sur ses caracteristiques. (author) [Spanish] Los autores describen un espectrometro neutronico destinado a la medicion de las distribuciones energeticas y angulares de neutrones monocromaticos lentos, dispersados inelasticamente en Iliquidos y solidos. Los experimentos de esa indole permiten obtener informacion detallada sobre la dinamica de los atomos en distintos estados de agregacion de la materia. El espectrometro se basa en la medida del tiempo de vuelo. Como fuente pulsante de neutrones se emplea el reactor IBR-1. Actua como monocromador un interruptor mecanico, que gira sincronicamente con el disco del reactor IBR con uen defasaje prefijado. Mediante un sistema especial de regulacion se obtiene una estabilidad de fase superior a 0,5{sup o}. Los neutrones dispersados por la probeta se registran con un detector de centelleo colocado en un angulo determinado con relacion al haz neutronico. Bi poder de resolucion del espectrometro es del orden de los 15 {mu}s/m. Los autores describen en detalle la construccion del espectrometro y proporcionan indicaciones precisas sobre sus caracteristicas. (author)

  1. Materials Control in the Fabrication of Enriched Uranium Fuels; Controle des Matieres au Cours de la Fabrication des Combustibles a Base d'Uranium Enrichi; Uchet materialov pri izgotovlenii topliva na obogashchennom urane; Control de Materiales en la Elaboracion de Combustibles de Uranio Enriquecido

    Energy Technology Data Exchange (ETDEWEB)

    Cardwell, Jr., R. G. [Oak Ridge National Laboratory, Oak Ridge, TN (United States)

    1966-02-15

    densidad. La manipulacion de la chatarra tuvo una importante influencia en el balance de los materiales que confirmo el contenido de combustible y aseguro una buena contabilizacion. Los procedimientos de manipulacion y registro, y en particular los metodos de determinacion de las partidas y de marcacion fisica, se formularon de tal manera que constituyeron una buena ayuda para el fabricante en lo que respecta al control de la criticidad. (author) [Russian] Usilennaja dejatel'nost' v oblasti tehnologii teplovydeljajushhih jelementov, provodivshajasja v Okridzhskoj nacional'noj laboratorii na protjazhenii poslednih 15 let, privela k vyrabotke racional'nyh tehnologicheskih processov i metodov ucheta obogashhennyh materialov, kotorye sejchas shiroko primenjajutsja pri izgotovlenii teplovydeljajushhih jelementov v promyshlennom masshtabe. V hode proektirovanija i izgotovlenija prototipov teplovydeljajushhih jelementov dlja zapuska reaktora dlja ispytanija materialov, reaktora s massovoj zashhitoj ili {sup b}assejnovogo tipa{sup ,} kompaktnogo jenergeticheskogo reaktora voennogo obrazca, reaktora s bashennoj zashhitoj, pokazatel'nogo reaktora dlja Zhenevskoj konferencii, izotopnogo reaktora s potokom bol'shoj intensivnosti i jeksperimentol'nogo reaktora s gazovym ohlazhdeniem byli vyrabotany i prinjaty v kachestve ustanovlennyh norm nadezhnye metody obrashhenija s obogashhennym toplivom v vide splavov, suspenzii ili okisej. Nakoplennyj opyt posluzhil osnovoj dlja dannogo doklada, v kotorom podcherkivajutsja problemy ucheta materialov i ih razreshenie pri izgotovlenii razlichnyh sostavnyh chastej teplovydeljajushhih jelementov razlichnyh tipov na obogashhennom urane. Osnovnymi zadachami pri vyrabotke horoshej sistemy ucheta materialov javljajutsja: 1) sokrashhenie chisla edinic podotchetnogo materiala; 2) vyrabotka otdel'nyh uchetnyh dokumentov dlja kazhdoj vazhnoj stadii izgotovlenija i sostavlenie ih svodki sposobom, pozvoljajushhim s naimen'shej zatratoj truda vyjavljat' mesta

  2. Study of reactions of metals with sulphur and phosphorus compounds by pulsed temperatures; Etude des reactions entre metaux et composes du soufre et du phosphore au moyen de brusques hausses de temperature; Issledovanie reaktsii metallov s soedineniyami sery i fosfora pri regulyarnykh izmeneniyakh temperatury; Estudio de reacciones entre metales y compuestos de azufre y de fosforo empleando impulsos de temperatura

    Energy Technology Data Exchange (ETDEWEB)

    Campbell, R B; Grunberg, L [National Engineering Laboratory, East Kilbride, Glasgow (United Kingdom)

    1962-01-15

    , los autores han tenido en cuenta la estructura de los materiales empleados y los procesos de difusion a los que se debe el progreso de la reaccion una vez iniciada esta. (author) [Russian] Protivoiznosnoe dejstvie sernykh i fosfornykh soedinenij, kotorye obychno dobavlyayutsya k mashinnym maslam, zavisit ot khimicheskikh reaktsij s metallicheskimi poverkhnostyami shesterenok. EHti reaktsii imeyut mesto kak pri osnovnoj temperature masel (primerno 100 Degree-Sign C), tak i pri vysokikh temperaturakh (priblizitel'no 600 Degree-Sign C) v techenie nebol'shogo promezhutka vremeni, kogda zubtsy shesterenok vstupayut vo vzai-modejstvie pod nagruzkoj. Temperaturnye izmeneniya sozdavalis' v apparate, v kotorom korotkie impul'sy ehlektrotoka ispol'zovalis' dlya nagrevaniya metallicheskikh provodov, pogruzhennykh v mineral'noe maslo, soderzhashchee v rastvore mechenye soedineniya sery-35 i fosfora-32. Zameryalas' voznikavshaya v provodakh radioaktivnost'. Stepen' reaktsii opredelyalas' kak funktsiya temperatury i vremeni. Rezul'taty reaktsii vyrazhalis' posredstvom osnovnykh zakonov kinetiki. Izucheniyu podverglis' voprosy izmeneniya skorosti reaktsii v zavisimosti ot nalichiya drugikh sostavov v rastvore. Bylo takzhe opredeleno vliyanie predvaritel'no obrazovannykh pokrytij poverkhnosti, soderzhashchikh seru, fosfor, khlor i/ili kislorod. Dlya ob{sup y}asneniya rezul'tatov raboty ispol'zuyutsya dannye o strukture materialov, a takzhe rassmatrivayutsya protsessy diffuzij tam, gde reaktsii vykhodili za svoi nachal'nye stadii. (author)

  3. Fyzioterapia pri paréze nervus facialis

    OpenAIRE

    DANANAJOVÁ, Lucia

    2011-01-01

    The subject of this bachelor?s thesis is physiotherapy for peripheral paralysis of a facial nerve (nervus facialis), specifically Bell?s palsy. This is a paralysis of the mimetic muscles affecting an entire half of a face. It is typified by a rapid onset, usually on waking in the morning, and normally follows a predictable course. The most notable objective symptom is a marked facial asymmetry together with a complete change in the facial expression. For most patients prognosis is good, many ...

  4. EPR - spektroskopiya pri ozhirenii i metabolicheskom sindrome u zhenshchin

    Directory of Open Access Journals (Sweden)

    A G Maksina

    2001-03-01

    Full Text Available Цель. Исследовать изменения в структуре мембран эритроцитов крови при ожирении в сочетании с другими нарушениями, характерными для метаболического синдрома. Материалы и методы. Обследованы 42 пациентки в возрасте от 23 до 50 лет с избыточной массой тела и ожирением и контрольная группа (12 женщин с применением метода спинового зонда. Результаты. У пациенток и избытком массы тела и ожирением показатель мембранной упорядоченности фосфолипидов был выше, чем в контроле. . Изменение параметра S в цельной крови и сыворотке более выражено по сравнению с таковым в эритроцитах. При ожирении с сопутствующей артериальной гипертензией параметр упорядоченности достоверно выше (р

  5. KULTURNE RAZLIKE PRI TRGOVANJU MED SLOVENIJO IN KITAJSKO

    OpenAIRE

    Potrpin, Tea

    2012-01-01

    V diplomski nalogi smo predstavili pojme kulture, medkulturnih razlik ter osnove poslovnega bontona. Na kratko smo predstavili splošne znamenitosti Slovenije in Kitajske, in njune gospodarske ter zgodovinske značilnosti, največ poudarka pa smo namenili poslovnemu bontonu oziroma medkulturnim razlikam. Analizirali smo dosedanje skupno poslovanje teh dveh držav ter ugotovili, da sta Slovenija in Kitajska povezani še iz časov Jugoslavije. Očitno smo uspeli dobro preučiti njihovo kulturo (in Kit...

  6. APLIKACIJA NAČEL VITKE PROIZVODNJE PRI IZDELAVI KOMPRESORJEV

    OpenAIRE

    Vergot, Leonida

    2012-01-01

    V današnjem času, času hude konkurence, v hitro razvijajočem se okolju, ki ga narekujejo odprti trgi, globalizacija in rastoče zahteve kupcev, morajo podjetja na vsakem koraku izbrati rešitve za izboljšanje svojih procesov, da lahko dosežejo konkurenčno prednost, jo obdržijo in povečujejo. Za izboljšanje procesov v naši proizvodnji in dvig produktivnosti smo izbrali koncept vitke proizvodnje. Diplomsko delo na teoretičnih in praktičnih primerih opisuje uvajanje načel vitke proizvodnje...

  7. Nebesedno komuniciranje pri prodaji izdelkov blagovne znamke "HAPPENING"

    OpenAIRE

    Šuhel, Kristina

    2009-01-01

    Komuniciranje spremlja človeka skozi vso njegovo življenje. Glede nato, da skoraj tretjino življenja preživimo v službi, velik del komunikacij poteka prav na delovnem mestu. Podjetje komunicira z obstoječimi, možnimi uporabniki, z zaposlenimi … Komuniciranje poteka z namenom, saj želimo od prejemnika sporočila določen odziv. Največji del komuniciranja zajema prav nebesedno komuniciranje, s katerim želi izvajalec marketinga ustvariti sliko o sebi in pripraviti javnost do aktivnosti, npr. do...

  8. Okeanos Explorer (EX1607): CAPSTONE Wake Island PRI MNM (Mapping)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Operations will include 24 hour/day mapping operations using the ship’s deep water mapping systems (Kongsberg EM302 multibeam sonar, EK60 split-beam fisheries...

  9. Kalman Filter Predictor and Initialization Algorithm for PRI Tracking

    National Research Council Canada - National Science Library

    Hock, Melinda

    1998-01-01

    .... The algorithm uses a Kalman filter for prediction combined with a preprocessing routine to determine the period of the stagger sequence and to construct an uncorrupted data set for Kalman filter initialization...

  10. Prying into the Prion Hypothesis for Parkinson's Disease.

    Science.gov (United States)

    Brundin, Patrik; Melki, Ronald

    2017-10-11

    In Parkinson's disease, intracellular α-synuclein inclusions form in neurons. We suggest that prion-like behavior of α-synuclein is a key component in Parkinson's disease pathogenesis. Although multiple molecular changes are involved in the triggering of the disease process, we propose that neuron-to-neuron transfer is a crucial event that is essential for Lewy pathology to spread from one brain region to another. In this review, we describe key findings in human postmortem brains, cultured cells, and animal models of disease that support the idea that α-synuclein can act as a prion. We consider potential triggers of the α-synuclein misfolding and why the aggregates escape cellular degradation under disease conditions. We also discuss whether different strains of α-synuclein fibrils can underlie differences in cellular and regional distribution of aggregates in different synucleinopathies. Our conclusion is that α-synuclein probably acts as a prion in human diseases, and a deeper understanding of this step in the pathogenesis of Parkinson's disease can facilitate the development of disease-modifying therapies in the future. Dual Perspectives Companion Paper: Parkinson's Disease Is Not Simply a Prion Disorder, by D. James Surmeier, José A. Obeso, and Glenda M. Halliday. Copyright © 2017 the authors 0270-6474/17/379808-11$15.00/0.

  11. UPORABA HEIJUNKA TEHNIKE PRI PLANIRANJU PROIZVODNJE AVTOMOBILSKIH DELOV

    OpenAIRE

    Narat, Jernej

    2012-01-01

    Cilj diplomskega dela je poiskati in preveriti ustreznost metode s pomočjo katere bi lahko planirali proizvodnjo v kovinarskem podjetju z čim manjšimi zalogami končnih izdelkov. V diplomskem delu smo ugotovili, da je rešitev našega problema vpeljava Heijunka tehnike. Planiranje in vodenje proizvodnje z rešitvami, ki jih ponuja Heijunka tehnika vodi uporabnika do zmanjšanja zalog končnih izdelkov brez ogrožanja dobav kupcu. Učinek zmanjšanja zalog se zaradi uporabe Heijunka tehnike pre...

  12. Primena metoda ekspertskog ocenjivanja pri oceni profesionalnog rizika

    OpenAIRE

    Zoran Novaković

    2007-01-01

    Osnovni cilj utvrđivanja ocene profesionalnog rizika je preventivno delovanje u funkciji bezbednosti i zaštite zdravlja zaposlenih, tj. preduzimanje opštih i posebnih mera zaštite na radu radi eliminisanja opasnosti ili štetnosti, ili smanjivanja vremena ekspozicije zaposlenog određenim faktorima rizika u sredinama gde je ustanovljena njihova prisutnost. U mnogim slučajevima raspoloživi podaci o prethodnim štetnim događajima su nepotpuni ili nisu dovoljno statistički relevantni...

  13. BOL I SUZBIJANJE BOLI PRI KRONIČNOJ RANI

    OpenAIRE

    PERSOLI-GUDELJ, MARIJANA; LONČARIĆ-KATUŠIN, MIRJANA

    2015-01-01

    U ovom preglednom članku opisan je patomehanizam nastanka bolnog osjeta i put njegovog širenja od mjesta ozljede do korteksa s posebnim osvrtom na pojavu boli kod kronične rane i važnosti njenog pravodobnog i pravovaljanog liječenja Istaknuto je značenje nociceptora (prihvatača bolnih podražaja) i kemijskih posrednika (neurotransmitera) te alogenih tvari koje se oslobađaju na mjestu ozljede i podražuju nocicepcijske neurone. U liječenju je naglašena primjena farmakoterapije (analgetici). Kao ...

  14. Zagotavljanje kakovosti projektov razvoja programske opreme pri zunanjih dobaviteljih

    OpenAIRE

    Kolar, Alenka

    2006-01-01

    This thesis is about software development in enterprises such as the public company Elektro-Slovenija d.o.o. whose core business is not software development. What is also common to these enterprises is that they are publicly owned and that they must follow public procurement laws. These enterprises have usually a department or a sector dedicated to information technology (IT). IT departments provide to other departments IT support, both computer hardware and software. User applications for th...

  15. Sistema angiogeneza v norme i pri sakharnom diabete

    Directory of Open Access Journals (Sweden)

    Anastasia Sergeevna Severina

    2004-12-01

    Full Text Available Ангиогенез представляет собой сложный морфогенетический процесс, который играет ключевую роль в эмбриогенезе и является физиологическим процессом образования кровеносных капилляров из капиллярных отростков и их организации в сосудистую сеть. Факт участия VEGF в развитии сосудистых осложнений при СД не вызывает сомнений. Однако, учитывая противоречивые результаты исследований, требуется дальнейшее детальное изучение роли VEGF при этих осложнениях с целью поиска принципиально новых подходов к профилактике и лечению сосудистых осложнений сахарного диабета.

  16. Oprijemljivi vmesniki pri učenju prostorske orientacije

    OpenAIRE

    KOMPARA, ROK

    2015-01-01

    Diplomsko delo zajema vse faze procesa izdelave oprijemljivega uporabniškega vmesnika in aplikacije za učenje prostorske orientacije predšolskih otrok. Poleg tehničnega dela je teorija podkrepljena tudi s pedagoškimi pogledi na tehnologijo in njeno uporabno vrednost kot pripomoček za učenje. Praktičen del obsega načrtovanje, prototipiranje in izdelavo oprijemljivega vmesnika, ki je podprt z rezultati testiranja, opravljenega v enem izmed vrtcev v Novi Gorici. Končni izdelek z imenom Moj...

  17. Determination of Fallout Radionuclides in Environmental Samples by Gamma-Ray Spectrometry; Mesure Spectrometrique Gamma des Radionucleides de Retombee Presents dans des Echantillons du Millieu; Opredelenie radioizotopov radioaktivnykh osadkov v probakh iz okruzhayushchej sredy pri pomoshchi spektrometrii gamma-luchej; Determinacion, por Espectrometria Gamma, de los Radionuclidos de Precipitaciones en Muestras del Medio Ambiente

    Energy Technology Data Exchange (ETDEWEB)

    Ward, G. M.; Johnson, J. E.; Wilson, D. W. [Department of Animal Science, Colorado State University, Fort Collins, CO (United States)

    1965-10-15

    vremeni na universitetskoj ferme sobrali znachitel'noe kolichestvo prob iz okruzhajushhej sredy dlja izuchenija dvizhenija cezija-137 v znachitel'noj chasti pishhevoj ce- pochki cheloveka. Vse proby imeli maluju udel'nuju aktivnost', i izmerenija proizvodili pri pomoshhi spektrometricheskogo ustrojstva dlja gamma-luchej nizkogo urovnja, sostojashhego iz kristalla NaJ (T1) diametrom 8 i tolshhinoj 4 djujma, prichem jetot kristall byl zashhishhen ot fona stal'noj kameroj s tolshhinoj stenok 5 djujmov i soedinen s 400-kanal'nym anali- zatorom amplitudy impul'sov. Otschet nabivok vozdushnyh fil'trov i krupnyh prob ( 1kg) suhogo furazha, zerna i pometa krupnogo rogatog o skota proizvodili neposredstvenno v postojannoj geometrii. Proby osadkov koncentrirovali propuskaniem ih cherez kationo- obmennye kolonki, zapolnennye doveksom-50. Radioaktivnost' moloka, mjasa i mochi pod- schityvali v bol'shih kol'ceobraznyh kontejnerah iz ljucita. V moloke, mjase i moche ob- naruzhivajutsja v chisle gamma-izluchajushhih radioizotopov lish' cezij-137, kalij-40, jod-131, barij-140 i lantan-140, poskol'ku oni javljajutsja edinstvennymi produktami delenija, po- gloshhaemymi v znachitel'nyh kolichestvah. Pomimo jetogo, drugie proby soderzhali cezij-141, cezij-144, sur'mu-125, rutenij-103, rutenij-106, cirkonij-95, niobij-95 i marganec-54. V probah, sobrannyh v 1962 i 1963 godah, pri pomoshhi'gamma-spektrometrii udalos' oprede- lenno obnaruzhit' lish' cirk{sup n}ij-95 i niobij-95 vvidu ih otnositel'nogo obilija; jeto bylo prodelano priblizitel'no za 6 mesjacev posle sbora prob. Fotopiki cezija-137, marganca-54 i sur'my-125 byli sovershenno rasplyvchatymi, a radioizotopy bolee malyh jenergij (cezij-141, cezij-144 i rutenij-103) imeli znachitel'nye komptonovskie vklady ot radio- izotopov bolee vysokih jenergij. Pri nedostatochno jasnyh fotopikah posledovatel'noe vydelenie produktov delenija iz spektrov ne javljaetsja nadezhnym. Kogda vlijanie drugih radioizotopov delaet nevozmozhnym

  18. Drift Instabilities and Electron Cyclotron Oscillations for Arbitrary Plasma Pressure; Instabilites de Derive et Oscillations Cyclotroniques des Electrons pour des Pressions de Plasma Arbitraires; Drejfovaya neustojchivost' i ehlektronno-tsiklotronnye kolebaniya pri proizvol'nom davlenii plazmy; Inestabilidades de Deriva y Oscilaciones Ciclotronicas de los Electrones en un Plasma de Presion Arbitraria

    Energy Technology Data Exchange (ETDEWEB)

    Krall, N. A.; Pearlstein, L. D. [General Atomic Division, General Dynamics Corporation, San Diego, CA (United States)

    1966-04-15

    radiar si estan acoplados a ondas transversales; con {beta} = 0 este acoplamiento se producan la superficie o en una inhbmogeneidad local. Puesto que un efecto notable de {beta} finito es el de acoplar ondas longitudinales y transversales, los autores calculan el espectro y el acoplamiento de oscilaciones ciclotronicas de los electrones para valores de {beta} arbitrarios. (author) [Russian] Bol'shaja chast' izvestnyh drejfovyh neustoj- chivostej {l_brace}zhelobkovaja, universal'naja i t . d . ) byla rasschitana v predele {beta} = (plazmennoe dav- lenie)/(magnitnoe davlenie)= 0. V jetom predele vozmushhennoe jelektricheskoe pole javljaetsja jelektrostaticheskim i uravnenie Vlasova maksimal'no uproshheno.- Predel'noe {beta}, pri kotorom eshhe spravedlivo jelektrostaticheskoe priblizhenie, zavisit ot rassmatrivaemoj formuly kolebanij, i mnogie sovremennye jeksperimenty vyhodjat za jetot diapazon. Dva horosho izvestnyh nizkochastotnyh vida drejfovyh neustojchivostej issledujutsja pri proizvol'nom {beta}; opredeljaetsja rezhim nulevogo {beta}, i vyvodjatsja kriteriiustojchivosti dlja bol'shih znachenij {beta}. Krome togo, issleduetsja vlijanie konechnogo {beta} na izuchenie na jelektronno-ciklotronnoj garmonike. Vnachale rassmatrivaetsja zhelobkovaja neustojchivost' s konechnym larmorovskim radiusom (R), vyzyvaemaja kriviznoj magnitnogo polja zerkal. Pugajushhie bol'shie chleny samyh nizkih porjadkov, obratno proporcional'nye R{sup 2}, sokrashhajutsja vo vseh porjadkah po {beta}. Glavnye chleny zatem ne zavisjat ot R i vkljuchajutsja v zadachu o sobstvennyh znachenijah; poluchajutsja kriterii ustojchivosti dlja razlichnyh diapazonov {beta}. Dalee rassmatrivaetsja universal'naja neustojchivost' E (vozmushhennoe) = E(exp ik{sub Up-Tack }r{sub Up-Tack })(exp ik{sub II}r{sub II}) v odnorodnom magnitnom'pole B = B{sub 0}i{sub II} s kriviznoj polja, imitirovannoj fiktivnoj siloj tjazhesti. V jetom sluchae predel nulevogo {beta} zavisit ot dliny voln.' Esli {beta}<(massa jelektrona

  19. Narusheniya v sisteme gemostaza pri sakharnom diabete i puti ikh korrektsii pri naznachenii kombinirovannoy terapii Diabetonom MV i metforminom

    Directory of Open Access Journals (Sweden)

    Alexander Sergeevich Ametov

    2007-09-01

    Full Text Available Для больных сахарным диабетом характерно атеротромботическое состояние, обусловленное множественными нарушениями в системе гемостаза. Гемостатические нарушения у больных сахарным диабетом являются обычно комплексными и включают активацию естественных механизмов системы коагуляции, подавление фибринолитической активности, а также различные нарушения функции тромбоцитов

  20. Comparative Study of the Methods Used for the Computer Resolution of Composite Gamma-Ray Spectra; Etude Comparative des Methodes Utilisees pour la Resolution de Spectres Gamma Complexes au Moyen d'un Ordinateur; Sravnitel'noe izuchenie metodov razresheniya sostavnykh gamma-spektrov pri pomoshchi schetno-reshayushchego ustrojstva; Estudio Comparativo de los Metodos Aplicados para Resolver Espectros Gamma Complejos Mediante Calculadoras

    Energy Technology Data Exchange (ETDEWEB)

    DeHaan, A. Jr.; Leventhal, L.; Benson, P. [Tracerlab, Richmond, CA (United States)

    1965-10-15

    diferentes metodos, prestando especial atencion a las muestras de baja actividad. Se han estudiado los metodos matematicos de uso mas corriente para resolver en sus componentes un espectro gamma complejo. Con arreglo a ellos, la concentracion de los diferentes emisores gamma se calcula por uno de los siguientes procedimientos: 1. Eliminacion sucesiva de radionuclidos con fotopicos de energia elevada sustrayendo el espectro puro del espectro complejo, hasta su resolucion. 2. Resolucion por picos sin sustraccion, 3. Establecimiento y resolucion de un sistema de ecuaciones lineales simultaneas del mismo grado que el numero de radionuclidos de la muestra. 4. Calculo de las concentraciones por cuadrados minimos, segun el metodo clasico o el ponderado. 5. Combinacion de los metodos estadistico y de cuadrados minimos con regresion lineal multiple gradual, lo que constituye una tentativa de introducir en el analisis los procesos determinantes. Se expone, para cada metodo analitico aplicado a mezclas compuestas por varios radionuclidos, el calculo estadistico de los errores inherentes a las concentraciones halladas. (author) [Russian] Razreshenie slozhnyh smesej gamma-izluchatelej bylo uskoreno blagodarja ispol'zovaniju ochen' slozhnyh gamma- spektrometrov sovmestno s cifrovymi schetno-reshajushhimi ustrojstvami. Jeti pribory poluchili v nastojashhee vremja shirokoe rasprostranenie i stali dostupnymi dlja tehnicheskih laboratorij. Daetsja opisanie metodov, primenjaemyh v laboratorii izotopnyh indikatorov dlja opredelenija koncentracii otdel'nyh gamma-izluchajushhih radioizotopov v probah radioaktivnyh osadkov, i sravnivajutsja rezul'taty, poluchennye s sostavnymi probami na osnovanii razlichnyh matematicheskih metodov. Poluchennye pri pomoshhi schetno-reshajushhego ustrojstva dannye sravnivajutsja s rezul'tatami, poluchennymi posredstvom radiohimicheskogo analiza proby. Opisyvaemymi nizhe sposooami snachala izucheny oinarnye smesi, a zatem rezul'taty jetogo analiza rasprostraneny na

  1. Progress towards phosphorus-33 production: studies on the enrichment of sulphur-33 by means of anion exchangers; Mise au point d'une methode de production du phosphore-33: etudes sur l'enrichissement du soufre-33 au moyen d'echangeurs anioniques; Uspekhi v poluchenii fosfora-33: izuchenie obogashcheniya sery-33 pri pomoshchi anionnykh obmennikov; Progresos on la produccion de fosforo-33: estudios realizados sobre el enriquecimiento del azufre-33 por medio de intercambiadores anionicos

    Energy Technology Data Exchange (ETDEWEB)

    Forberg, S; Westermark, T [Division of Physical Chemistry, Kungl. Tekniska Hogskolan, Stockholm 70 (Sweden)

    1962-01-15

    {sup 33}S mediante intercambio quimico entre el HSO{sub 3}{sup -} y el H{sub 2}SO{sub 3} para la produccion del {sup 33}P, por ser el metodo que mejores perspectivas ofrece. Encontraron que el desplazamiento mediante HCl del HSO{sub 3}{sup -} fijado en los intercambiadores anionicos constituye un metodo excelente para lograr condiciones de contracorriente y de reflujo total en este sistema. Destacan algunos inconvenientes del metodo, que derivan de la necesidad de trabajar con un reflujo muy intenso. En el instituto de tecnologia de Estocolmo se ha construido una instalacion en que se aplica este proceso, y la memoria indica los parametros obtenidos y la experiencia adquirida durante su funcionamiento, asi como los resultados experimentales. El enriquecimiento obtenido, muy inferior al calculado segun los resultados de laboratorio, se atribuye a la formacion de una ''cola'' de H{sub 2}SO{sub 3} en la fase HCl. Los autores han investigado este problema y encuentran que quiza se pudiera resolver empleando disolventes organicos en vez de soluciones acuosas. (author) [Russian] V kachestve naibolee perspektivnogo sposoba polucheniya P{sup 33} bylo vybrano obogashchenie S{sup 33} khimicheskim obmenom mezhdu HSO{sub 3} i H{sub 2}SO{sub 3}. Vytesnenie HSO{sub 3} pri pomoshchi HCl iz anionnykh obmennikov okazalos' ochen' udobnym metodom dlya polucheniya protivotecheniya i sozdaniya massovogo potoka flegmy dlya ehtoj sistemy. Ukazyvayutsya nekotorye prisushchie sisteme nedostatki, svyazannye s trebovaniyami intensivnogo potoka flegmy. Dlya osushchestvleniya ehtogo protsessa pri institute byla sozdana osobaya ustanovka, v doklade izlagayutsya poluchennye parametry, operativnyj opyt i rezul'taty. Blagodarya obrazovaniyu H{sub 2}SO{sub 3} pri vytesnenii HSO{sub 3} s pomoshch'yu HCl dostigalos' znachitel'no men'shee obogashchenie, chem ehto predpolagalos' pri provedenii laboratornykh rabot. Bylo provedeno izuchenie ehtoj problemy, i vozmozhnym putem, veroyatno

  2. Self-Absorption Studies with a 4 {pi} {beta}-Proportional Flow Counter; Etudes sur l'autoabsorption avec un compteur {beta} 4 {pi} proportionnel a courant; Izuchenie samopogloshcheniya pri pomoshchi {beta} proportsional'no-potochnogo 4 {pi} schetchika; Estudios sobre autoabsorcion con un contador de flujo proporcional {beta}4 {pi}

    Energy Technology Data Exchange (ETDEWEB)

    Yaffe, L; Fishman, J B [Radiochemistry Laboratory, Dept. of Chemistry, McGill University, Montreal, Quebec (Canada)

    1960-06-15

    entre 0,018 y 1,7 MeV) recogiendolos sobre finas peliculas de resina vinilica (VYNS) y han determinado las caracteristicas de autoabsorcion. Presentan una serie de curvas, obtenidas experimentalmente, que relacionan la E{sub max} el espesor de la fuente y la autoabsorcion. Les datos referentes a la autoabsorcion han sido sometidos a un analisis teorico, para contadores de angulo pequeno y 4 {pi}. Las curvas de autoabsorcion determinadas experimentalment e para contadores 4 {pi} estan comprendidas entre las curvas teoricas que corresponden a los angulos solidos pequenos y las curvas determinadas mediante contador de geometria 4 {pi}. (author) [Russian] Izuchenie samopogloshcheni {beta} izluchatelej provodilos' pri pomoshchi priemov, izlozhennykh Pejtom i YAffe v kanadskom khimicheskom zhurnale [Can. J. Chem. 34, 265 (1956]. Letuchie soedineniya H{sup 3}, S{sup 14}, So{sup 60}, Hg{sup 203}, As{sup 77} i P{sup 32} (E{sub max} ot 0,018 do 1,7 MeV) peregonyalis' na tonkie VYNS ustanovki i opredelyalas' kharakteristik a samopogloshcheniya . Privodyatsya serii s ehmpiri- cheskim opredeleniem krivykh, otnosyashchikhsya k E{sub max}, tolshchine istochnika i samopogloshchenie . Dannye samopogloshcheni ya podvergalis' teoreticheskom u analizu na schetchikakh s malym uglom i na 4 {pi} geometricheski kh schetchikakh. EHksperi- mental'no opredelennye krivye samopogloshcheni ya s pomoshch'yu 4 {pi} geometricheskikh schetchikov nakhodyatsya mezhdu krivymi, poluchennymi s pomoshch'yu schetchikov s teoreticheski malymi uglami i s pomoshch'yu 4 {pi} geometricheskikh schetchikov. (author)

  3. Use of the Scintigraphic Method In Morphological Exploration of the Liver during Amoebiasis; Application de la Methode Scintigraphique a l'Exploration Morphologique du Foie au Cours de l'Amibiase; Primenenie stsintigraficheskogo metoda dlya morfologicheskogo issledovaniya pecheni pri amebiaze; Aplicacion de la Centelleografia a la Exploracion Morfologica del Higado en Casos de Amibiasis

    Energy Technology Data Exchange (ETDEWEB)

    Gongora, R.; Jammet, H. [Fondation Curie, Paris (France)

    1964-10-15

    de los examenes que han efectuado y las conclusiones correspondientes. Describen la tecnica de examen considerando, sucesivamente: a) el problema de la eleccion de los productos (Rosa Bengala marcadb con {sup 131}I; {sup 198}Au en solucion coloidal) senalando sus ventajas e inconvenientes; b) los aparatos empleados, insistiendo en el problema de la colimacion; c) el desarrollo del examen, que comprende un examen funcional y la centelleografia propiamente dicha efectuada, necesariamente, desde varias proyecciones; d) la repeticion del examen a intervalos de varios meses. A continuacion, los autores tratan de la semiologia centelleograueca de las amibiasis hepaticas, analizan las imagenes anormales elementales, examinan su topografia y describen las asociaciones de esas imagenes en el caso de la hepatitis y en el de los abscesos amibianos. Estudian la evolucion temporal de esas imagenes y dan informacion sobre un cierto numero de casos en que el examen centelleografico se repitio a intervalos de varias semanas o de varios meses. Por ultimo, senalan en que casos esta indicado este metodo, que facilita datos esenciales para precisar el diagnostico positivo de los abscesos hepaticos amibianos y su diagnostico topografico y morfologico, particularmente interesante desde el punto de vista quirurgico, y que permite seguir la evolucion de la enfermedad y apreciar la curacion de los abscesos despues del tratamiento medico. (author) [Russian] Scintigraficheskij metod nahodit vse bole;e shirokoe primenenie pri morfologicheskom issledovanii amebnogo zabolevanija pecheni v svjazi s chastotoj pechenochnyh lokalizacij amebiaza i trudnostjami klinicheskogo i paraklinicheskogo diagnoza amebnogo abscessa pecheni. V dannoj oblasti metod daet vozmozhnost' poluchat' ves'ma interesnye dannye. Privoditsja statistika provedennyh opytov, predlagajutsja sootvetstvujushhie vyvody. Izlozhenie metoda issledovanija daetsja v sledujushhem porjadke: Problema vybora indikatora (Bengal'skaja roza

  4. A Method of Identification and Inspection for Inventory Control of Irradiated Fuel Elements; Methode d'Identification et d'Inspection Permettant de Proceder a l'Inventaire des Elements Combustibles Irradies; Metod identifikatsii i proverki pri inventarnom kontrole obluchennykh toplivnykh ehlementov; Metodos de Identificacion e Inspeccion para el Control de las Existencias de Elementos Combustibles Irradiados

    Energy Technology Data Exchange (ETDEWEB)

    Kinderman, E. M.; Mills, J. S. [Stanford Research Institute, Menlo Park, CA (United States)

    1966-02-15

    neobhodimo proverjat' pri ljuboj polnoj inventarnoj proverke special'nyh jadernyh materialov. Jeto, odnako, svjazano s osobymi trudnostjami s tochki zrenija fiziki, s kotorymi .stalkivaetsja kontroler'ili rukovoditel' operacii po provedeniju inventarnogo kontrolja. V jetih mestah rasstojanie mezhdu ob{sup e}ktom i nabljudatelem i plohoe osveshhenie i iskazhenie sveta, vyzyvaemoe sredoj zashhity (voda, svincovoe steklo), delajut provedenie inventarnoj proverki eshhe bolee trudnoj. Chtoby preodolet' jeti trudnosti i sozdat' sistemu, kotoraja oblegchit opoznavanie vygruzhaemogo topliva iz reaktora, razrabotana kompaktnaja i udobnaja sistema opticheskoj proverki s primeneniem nepodvizhnoj stancii proverki, periskopa, teleskopa i kamery. Jeta sistema proverena v bassejne dlja obluchenija kobal'ta putem izuchenija probnyh obrazcov s razlichnoj markirovkoj, kotorye obrabatyvali v petle s gorjachej cirkulirujushhej vodoj. V sisteme proverki primenjali napolnennyj vodoj periskop dlinoju 11 futov, katadioptricheskij teleskop, raspolozhennyj v 16 futah ot periskopa, i 35 mm kameru dlja registracii nabljudenij. Teleskop, kamera i sborki vsegda mozhno peredvinut', poskol'ku oni vse vmeste vesjat menee 22 funtov i imejut maksimal'nyj razmer 29 djujmov. Fotograficheskie nabljudenija za proverochnymi tablicami razreshenija v vozduhe na rasstojanii 20 futov ot linzy ob{sup e}ktiva teleskopa pokazali, chto sistema mozhet davat' razreshenie 22 mikrona v shirinu. Jeto sootvetstvuet razresheniju 0,8 sek dugi. Predvaritel'nye ispytanija, provedennye s vodnoj sistemoj, pokazali, chto razreshajushhaja sposobnost' jetoj sistemy na rasstojanii 20 futov luchshe 50 mikron. Jeto sootvetstvuet razresheniju priblizitel'no 1 sek dugi. Jasno, odnako, chto razreshajushhaja sposobnost' vodnoj sistemy nikogda ne mozhet byt' luchshe vozdushnoj. V ljubom sluchae nyneshnjaja sistema, primenjaemaja pri inventarnoj proverke topliva, dolzhna nadlezhashhim obrazom vosproizvodit' ljubye inventarnye otmetki. (author)

  5. Performance Characteristics of the Experimental Boiling Water Reactor from 0 to 100 MW(t); Performances de l'EBWR de 0 a 100 MW; Rabochaya kharakteristika ehksperimental'nogo kipyashchego reaktora EBWR pri moshchnosti 0 - 100 mgvt.; Rendimiento del reactor experimental de agua hirviente (EBWR) entre 0 y 100 MW

    Energy Technology Data Exchange (ETDEWEB)

    Iskenderian, A.; Lipinski, W. C.; Petrick, M.; Wimunc, E. A. [Argonne National Laboratory, Argonne, IL (United States)

    1963-10-15

    .d. Rabochaya kharakteristika reaktora EBWR opredelyalas' pochti isklyuchitel'no po vydeleniyu para v osadok v spusknoj trube, po unosu zhidkosti ehfluentom para i kosvenno, putem lokalizatsii dejstvitel'noj poverkhnosti razdela v korpuse reaktora. Vydelenie para v osadok bylo dominiruyushchim faktorom v diapazone bolee nizkikh ehnergij. Pri moshchnosti svyshe 65 mgvt rabochaya kharakteristika reaktora rezko menyalas'. Skorost' otdeleniya para dostigla 33 sm/sek i vysota parovogo prostranstva umen'shilas' do 1 m. Pri takikh usloviyakh proiskhodil unos zhidkosti, kotoryj bystro uvelichivalsya s uvelicheniem moshchnosti. Reaktor bol'she ne vel sebya kak kipyashchij reaktor s pryamym tsiklom; v nekotorom rode on vel sebya kak reaktor s dvojnym tsiklom estestvennoj tsirkulyatsii. (author)

  6. The Effect of Kinetic Energy on the Reactions of Nucleogenic Carbon Atoms with Hydrocarbons; Effet de l'Energie Cinetique sur les Reactions des Atomes de Carbone Nucleogeniques avec des Hydrocarbures; Ehffekt kineticheskoj ehnergii pri reaktsiyakh atomov yadernogenichesko- go ugleroda s uglevodorodami; Efecto de la Energia Cinetica en las Reacciones de Atomos Nucleogenos de Carbono con Hidrocarburos

    Energy Technology Data Exchange (ETDEWEB)

    Dubrin, J.; Rosenberg, H.; Wolfgang, R. [Sterling Chemistry Laboratory, Yale University, New Haven, CT (United States); MacKay, C. [Haverford College, Haverford, PA (United States)

    1965-04-15

    -etileno se discuten en funcion de dos mecanismos de insercion previamente propuestos, a saber, la insercion del atomo de carbono en los enlaces C = C y C-H para formar compuestos de adicion C-C{sub 2}H{sub 4}. Al aumentar la concentracion de neon no desaparece ningun producto, pero los rendimientos relativos sufren modificaciones considerables. Los productos tales como el acetileno y el vinil-acetileno que pueden formarse a partir de los compuestos iniciales de adicion C-C{sub 2}H{sub 4}, en virtud de procesos que requieren gran cantidad de energia, disminuyen en importancia, mientras que aumenta el rendimiento de los productos formados por procesos que exigen poca energia, tales como los compuestos C{sub 5}. Algo semejante sucede con el etano. Los estudios por degradacion han mostrado que la distribucion intramolecular de {sup 11}C en el aleno y el metilacetileno formados a partir de etileno es afectada por el efecto moderador del neon. Ello implica la participacion de los enlaces C = C y C-H en la formacion de estos productos, asi como una relacion de dependencia entre la razon de ataque en esos dos tipos de enlace y la energia cinetica del atomo de carbono que interviene en la reaccion. Otros estudios con indicadores dobles acerca de la formacion de acetileno a partir de moleculas sencillas tales como CH{sub 2}CD{sub 2}, CH{sub 3}CH{sub 2}D, CD{sub 3}CDH{sub 2} y a partir de varias mezclas de otros alcanos y alquenos marcados indican que la perdida de energia cinetica por el atomo de carbono ejerce escaso efecto en el indice relativo de ataque en varios tipos de enlace C-H. (author) [Russian] Osnovnaja metodika izuchenija jeffekta kineticheskoj jenergii pri reakcijah atomov ugleroda, obrazuemyh v rezul'tate jadernyh preobrazovanij, svjazana s ispol'zovaniem horosho izvestnogo metoda zamedlenija s pomoshh'ju inertnyh gazov. Odnako jetot metod mozhet sochetat'sja s drugoj metodikoj, kak, naprimer, 1) ispol'zovanie akceptorov radikalov dlja obnaruzhenija processov

  7. Investigations on the structure of complex compounds by radioisotope exchange. The structure of cyanonitrosyl complexes; Recherches sur la structure des complexes par echange de radioisotopes - Structure des complexes cyanonitrosyliques; Issledovanie struktury slozhnykh soedinenij pri pomoshchi radioizotopnogo obmena - struktura slozhnykh tsianonitrozilovykh soedinenij; Estudio de la estructura de complejos por intercambio radioisotopico - Estructura de los complejos cianonitrosilicos

    Energy Technology Data Exchange (ETDEWEB)

    Jezowska-Trzeblatowska, B; Ziolkowski, J [University of Wroclaw (Poland)

    1962-03-15

    central y la capa p del atomo de nitrogeno. (author) [Russian] V kachestve slozhnogo svyazuyushchego zvena nitrozilovaya gruppa predstavlyaet osobyj interes kak po svoej strukture, tak i blagodarya svoemu svojstvu obrazovyvat' gruppy NO{sup -} i NO{sup +}. Dlya issledovaniya ehlektronnoj struktury K{sub 3}Mn(CN){sub 6} i K{sub 3}Mn(CN){sub 6}NO, valentnosti metalla i kharaktera soedinenij byli proizvedeny issledovaniya pri pomoshchi metoda radioizotopnogo obmena, a takzhe i drugikh fiziko-khimicheskikh metodov. Bylo obnaruzheno, chto dobavlenie nitrozilovoj gruppy k ionam geksatsionata znachitel'no uvelichivaet ustojchivost' soedineniya kak v tverdom sostoyanii, tak i v rastvore. EHto nablyudenie bylo podtverzhdeno issledovaniem kinetiki obmena v sistemakh: (I) K{sub 3}Mn(CN){sub 6} + KC{sup 14}N; (II) K{sub 3}Mn(CN){sub 5}NO + KC{sup 14}N. V oboikh sluchayakh reaktsii obmena v funktsii vremeni yavlyayutsya reaktsiyami pervogo poryadka, no oni znachitel'no otlichayutsya drug ot druga po skorosti. EHnergii aktivatsii ehtikh reaktsij ravny E{sub 1}=8,5 kilokalorij na molekulu i E{sub 11}=22,8 kilokalorij na molekulu. Anion Mn(CN){sub 5}NO{sub 3} svetochuvstvitelen, tak chto reaktsiya obmena nosit fotokhimicheskij kharakter. Sootnoshenie postoyannykh skorostej obmena v temnote i pri standartizirovannom osveshchenii ravno 1:100. Pervaya reaktsiya obmena (I) proiskhodit po tipu assotsiatsii, togda kak vtoraya reaktsiya (II) sleduet slozhnomu mekhanizmu assotsiatsii i dissotsiatsii. Analiz raspredeleniya aktivnosti mezhdu tsianistymi gruppami, podvergayushchimisya obmenu v sostoyanii izotopnogo ravnovesiya, obnaruzhil identichnost' po men'shej mere chetyrekh tsianistykh grupp. Bol'shaya ustojchivost' nitrozilovykh soedinenij po sravneniyu s geksatsianatami, a takzhe otsutstvie vtorichnykh dissotsiatsij byli podtverzhdeny razlichnymi metodami. Vse ehto ukazyvaet na strukturu NO{sup -} kompleksa. Predydushchie issledovaniya pokazali, chto nitrozilovaya gruppa koordiniruetsya v

  8. Adsorption studies at ionized surface layers by means of hot atoms; Etude, a l'aide d'atomes excites, de l'adsorption dans des couches superficielles ionisees; Issledovanie pri pomoshchi goryachikh atomov adsorbtsii na ionizirovannykh poverkhnostnykh sloyakh; Estudios, con ayuda de atomos excitados, de la adsorcion en capas superficiales ionizadas

    Energy Technology Data Exchange (ETDEWEB)

    Avrahami, Menashe; Steiger, Naftali H [Department of Chemistry, Technion - Israel Institute of Technology, Haifa (Israel)

    1962-03-15

    poverkhnostnogo izbytka pri pomoshchi nadlezhashchim obrazom izmenennoj izotermy Gibbsa, udalos' opredelit' adsorbtsiyu Bi{sup +++} i Pb{sup ++} po otnosheniyu k adsorbtsii Na{sup +} i H{sub 3}O{sup +} i tem samym ustanovit' stepen' ionnogo obmena v adsorbirovannom sloe. Tak kak ehtot metod pozvolyaet izmeryat' adsorbtsiyu zaryazhennykh chastits, to mozhno bylo prosledit' za poverkhnostnymi reaktsiyami, prevrashchayushchimi pervichnye pogloshchennye organicheskie aniony v neionnoe sostoyanie. Iz ehtogo mozhno bylo vyvesti zaklyuchenie otnositel'no obrazovaniya neionizirovannogo kislotnogo myla na poverkhnosti i otnositel'no obrazovaniya nitselly v masse rastvora pri razlichnykh ehksperimental'nykh usloviyakh. (author)

  9. Renal Scintiscanning with Hg{sup 209}-Neohydrin in Urologic Diseases; Scintigraphy du Rein dans les Maladies des Voies Urin Aires au Moyen de Neohydrine Marquee avec {sup 203}Hg; Stsintillyatsionnoe skennirovanie pochek s pomoshch'yu neogidrina,mechennogo Rtut'yu-203, pri urologicheskikh zabolevaniyakh; Exploracion Centelleografica del Rinon con Neohydrina - {sup 203}hg en las Afecciones Urologicas

    Energy Technology Data Exchange (ETDEWEB)

    Bollini, V.; Tori, G. [Radiology Institute of the University of Bologna (Italy)

    1964-10-15

    kolebljutsja v sootvetstvii s harakterom pochechnoj struktury i ee narushenij vsledstvie razlichnyh patologicheskih processov: opuholej, kist, gidronefroza, tuberkuleza i t.d. U zdorovyh ljudej obychno poluchajut odnorodnye scintigrammy, hotja poluchenie bolee chetkoj oblasti vorot organa ne javljaetsja redkim sluchaem. Kakoe-libo ogranichennoe umen'shenie scintigraficheskoj plotnosti vne vorot predstavljaet soboj funkcionirujushhuju menee aktivno zonu. Pri bolee krupnyh razmerah pochek, po sravneniju s normal'nymi, sleduet otlichat' odnorodnye skennogrammy, kotorye ukazyvajut na kompensatornuju gipertrofiju, neodnorodnyh i imejushhih nepravil'nuju formu. Izobrazhenija jetih poslednih ukazyvajut na nalichie krupnyh uchastkov gidronefroza, opuholej ili mnozhestvennyh kist. Pri pochechnyh sosudistyh zabolevanijah opredelenie haraktera pogloshhenija v obeih pochkah predstavljaet bol'shuju cennost' dlja ocenki snizhenija ih funkcii i dlja razgranichenija odnostoronnih i dvustoronnih porazhenij. Takim obrazom, scintilljacionnoe skennirovanie pochek obeshhaet dat' poleznye klinicheskie metody, osobenno v sochetanii s radiologicheskim issledovaniem pochek tradicionnymi sredstvami (urografija, voshodjashhaja pijelografija, retropnevmoperitoneum, tomografija, aorto- grafija it.d,),. (author)

  10. Non-Destructive Testing in Reactor Pressure-Vessel Fabrication; Essais non Destructifs dans la Fabrication des Caissons Etanches de Reacteurs; Nedestruktivnoe ispytanie pri izgotovlenii reaktornykh bakov vysokogo davleniya; Ensayo no Destructivo Durante la Fabricacion de Recipientes de Presion para Reactores

    Energy Technology Data Exchange (ETDEWEB)

    McGonnagle, W. J. [Fluids Dynamics Research, Iit Research Institute, Chicago, IL (United States)

    1965-09-15

    'nyj, rentgenovskij i gamma-radiografiju, ul'trazvuk, magnitnye chasticy i proniknovenie zhidkosti. Programma nedestruktivnyh ispytanij vkljuchaet proverku materiala plastiny, shtampovki, otlivki, obolochki i svarnyh shvov. Obsuzhdajutsja.opredelennye problemy, s kotorymi stalkivajutsja pri izgotovlenii jadernyh bakov vysokogo davlenija. Privodjatsja primery i obsuzhdajutsja specificheskie metody nedestruktivnyh ispytanij bakov vysokogo davlenija i ih komponentov. Izlagajutsja dejstvujushhie pravila i specifikacii, naprimer instrukcija po jekspluatacii kotlov i drugih sosudov vysokogo davlenija, izdannaja Amerikanskim obshhestvom inzhenerov-mehanikov, a takzhe instrukcii drugih rasporjaditel'nyh organov. Obsuzhdajutsja voprosy, kakim obrazom ispytanie bez razrushenija mozhet sodejstvovat' sobljudeniju specifikacij i trebovanij, predusmotrennyh razlichnymi rasporjaditel'nymi organami, a takzhe voprosy dostatochnosti i prigodnosti standartov, kotorye ispol'zujutsja pri takom primenenii. Predlagajutsja realistichnye i vmeste s tem otvechajushhie trebovanijam kriterii dlja priemki i brakovki. Daetsja opisanie procedury, kotoraja okazhet pomoshh' personalu, zanimajushhemusja nedestruktivnymi ispytanijami, dolzhnym obrazom vypolnjat' svoi objazannosti v sootvetstvujushhee vremja v processe izgotovlenija. Rassmatrivaetsja vzaimosvjaz' mezhdu gruppoj, provodjashhej nedestruktivnye ispytanija, i drugimi gruppami, svjazannymi s izgotovleniem sosudov vysokogo davlenija. (author)

  11. The Use of Technetium-99m as a Clinical Scanning Agent for Thyroid, Liver and Brain; Utilisation du {sup 99m}Tc comme Agent d'Exploration Clinique de la Thyroide, du Foie et du Cerveau; Ispol'zovanie Tc{sup 99m} kak klinicheskogo agenta pri skennirovanii shchitovidnoj zhelezy, pecheni i mozga; Empleo del {sup 99m}Tc como Agente para la Exploracion Clinica de la Tiroides, el Higado y el Cerebro

    Energy Technology Data Exchange (ETDEWEB)

    Harper, P. V.; Lathrop, K. A.; McCardle, R. J.; Andros, G. [Argonne Cancer Research Hospital and Department of Surgery, University of Chicago Hospitals and Clinics, Chicago, IL (United States)

    1964-10-15

    selectivamente por la tiroides, el estomago y las glandulas salivales. Los datos facilitados por la excrecion indican que su periodo biologico es de unos 2 d. Con una dosis de irradiacion calculada en 100 mrad para la glandula y en 5 mrad para el cuerpo entero, se pueden efectuar exploraciones tiroideas de muy buena calidad entre meedia hora y una hora despues de administrar 1 me de esta sustancia lo que representa una gran ventaja sobre el {sup 131}I. El TcO{sub 4} no atraviesa libremente la barrera hematoencefalica, lo que ha permitido obtener excelentes imagenes del cerebro con un tiempo de exploracion de 2 a 5 min aprovechando el elevado fndice de recuento correspondiente a dosis de 5 a 10 me de {sup 99m}Tc. Como el tiocianap pentavalente se disuelve en una emulsion de grasa, gran parte del {sup 99m}Tc se localiza en el higado; en este caso el elevado fndice de recuento permite tambien proceder a una rapida exploracion de esta glandula con un'mayor poder de resolucion. Es muy probable que este tipo de mejores resultados aun utilizando sondas mas eficaces y adaptando los parametros biologicos y quimicos a condiciones optimas. (author) [Russian] Pri poiskah ''ideal'nogo'' izotopa dlja skennirovanija tehnecij-99m, povidimomu, imeet mnogo preimushhestv. Jeto veshhestvo javljaetsja chistym gamma-izluchatelem s jenergiej 140 kjev (9% konveosija) otsutstvii izluchenija chastic, imeet shestichasovoj fizicheskij period poluraspada, umerennuju stoimost', javljaetsja dostupnym dochernim produktom molibdena-99 s periodom poluraspada 2,7 dnja, ot kotorogo on legko otdeljaetsja na kolonke s okis'ju aljuminija. V obychnoj forme (Tc{sup 99m}O{sub 4}{sup -}) on raspredeljaetsja v organizme tak zhe kak CIO{sub 4}{sup -} i J, bystro rasprostranjajas' vo vnekletochnom prostranstve, izbiratel'no zahvatyvaetsja shhitovidnoj zhelezoj, zheludkom i sljunnymi zhelezami. 5 sootvetstvii s dannymi vydelenija period poluvyvedenija sostavljaet priblizitel'no dva dnja. Chetkie skennogrammy shhitovidnoj

  12. Radioactive rare earths from fallout for study of particle movement in the sea; Etude du mouvement des particules dans la mer a l'aide de terres rares radioactives provenant de retombees; Ispol'zovanie osazhdayushchikhsya pri vypadenii radioaktivnykh redkikh zemel' dlya issledovaniya dvizheniya chastits v more; Estudio del movimiento de las particulas en el mar con ayuda de tierras raras radiactivas procedentes de las precipitaciones

    Energy Technology Data Exchange (ETDEWEB)

    Sugihara, Thomas T [Clark University, Worcester, MA (United States); Bowen, Vaughan T [Woods Hole Oceanographic Institution, Woods Hole, MA (United States)

    1962-01-15

    'interpreter les resultats de cette etude dans le cadre general de la geochimie marine des cations trivalente, et de mettre en evidence les aspects particuliers et l'utilite generale de cet essai d'utilisation des retombees comme indicateurs. (author) [Spanish] En el marco de un vasto estudio sobre la distribucion en el oceano Atlantico de los raclionuclidos de periodo largo procedentes de precipitaciones radiactivas, se han efectuado numerosas mediciones de la concentracion del cerio-144 y del promecio-147. Una comporacion de las variaciones horizontales y verticales de estas concentraciones con las concentraciones del estroncio-90, que fueron medidas al mismo tiempo, demuestra que las tierras rasas suelen abundar menos en las aguas superficiales que los nuclidos que se sabe son solubles. Esta observacion, unida al hecho de que se ha observado a menudo un enriquecimiento de las aguas profundas en tierras raras, permite afirmar que esos elementos experimentan un rapido transporte vertical al fijarse a particulas en vias de sedimentacion. Esta hipotesis es perfectamente compatible con el comportamiento ''radiocoloidal'' caracteristico de las tierras raras al pH del agua de mar. En la memoria se procura interpretar este estudio en el contexto de las propiedades generales de los cationes trivalentes en geoquimica marina; asimismo, se ponen de manifiesto los aspectos caracteristicos y la utilidad general de este ensayo de utilizacion de las precipitaciones como indicadores radiactivos. (author) [Russian] V kachestve chasti podrobnogo issledovaniya raspredeleniya dolgozhivushchikh radioizotopov, osevshikh pri vypadenii v Atlanticheskom okeane, bylo prodelano znachitel'noe chislo zamerov kontsentratsii tseriya-144 i prometiya-147. Sopostavlenie ehtikh kontsentratsij po mere ikh izmeneniya kak v gorizontal'nom, tak i v verti-kal'nom napravleniyakh s odnovremenno zamerennymi kontsentratsiyami strontsiya-90 pokazyvaet, chto redkie zemli nakhodyatsya obychno v men'shikh kolichestvakh na

  13. The use of radioactive inserts in the study of metal deformation during tube-making processes; Emploi de fils metalliques radioactifs pour l'etude des deformations des metaux pendant la fabrication de tubes; Ispol'zovanie radioaktivnykh vtulok dlya izucheniya deformatsii metallov pri protsesse izgotovleniya trub; Empleo de insertos radiactivos en el estudio de la deformacion de los metales durante la fabricacion de tubos

    Energy Technology Data Exchange (ETDEWEB)

    Davison, W H.T. [Tube Investments Research Laboratories, Cambridge (United Kingdom)

    1962-01-15

    experimental, que es aplicable a los estudios sobre deformacion de los metales en general. En este metodo es preciso localizar el inserto radiactivo con un error no mayor de un milimetro, lo que exige un poder de resolucion superior al que requieren normalmente las tecnicas de exploracion medica. Se examinan los problemas correspondientes en terminos de energia gamma, diseno del colimador y discriminacion de energias. (author) [Russian] V nastoyashchej rabote rassmatrivaetsya vopros ob ispol'zovanii radio- aktivnykh vtulok pri izuchenii deformatsii stali v pirsing-protsesse s pomoshch'yu goryachego rotatsionnogo metoda. ZHeleznaya ili stal'naya provoloka aktiviruetsya v reaktore, pomeshchaetsya v truby, pro- sverlennye v zheleznykh ili stal'nykh zagotovkakh, kotorye zatem podvergayutsya obrabotke v normal'nykh proizvodstvennykh usloviyakh. Tshchatel'noe nablyudenie pokazyvaet, chto radiatsionnoe obluchenie i zagryazneniya ustanovki sovershenno neznachitel'ny. Posle okhlazhdeniya zagotovki podvergayutsya analizu v laboratorii putem primeneniya kollimirovannogo stsintillyatsionnogo schetchika, raspolozhennogo perpendikulyarno k poverkhnosti prosverlennoj zagotovki; krivye izodoz pokazyvayut formu deformiro- vannoj radioaktivnoj vtulki, raspolozhennoj pod pryamym uglom k poverkhnosti truby. Drugoj grafik poluchaetsya ot podobnogo roda razvertki uchastka, nakhodyashchegosya pod pryamym uglom k osi truby; pri pomoshchi dvukh poluchennykh grafikov poluchaetsya kartina v trekh izmereniyakh. V dokumente privodyatsya nekotorye rezul'taty, no osnovnoe vnimanie v nem udelyaetsya metodam provedeniya ehksperimentov, kotorye shiroko ispol'zuyutsya pri izuchenii defor- matsii metallov. Vtulki dolzhny byt' raspolozheny na rasstoyanii millimetra ili okolo ehtogo, dlya chego trebuetsya bolee vysokaya razreshayushchaya sposobnost' po sravneniyu s normal'nymi metodami issledovaniya, primenyaemymi v meditsine. Problemy dostizheniya ehtogo ras- smatrivayutsya v nastoyashchem doklade v zavisimosti

  14. Total Counting and Spectroscopy in the Assessment of Alpha Radioactivity in Human Tissues; Determination de la Radioactivite Alpha des Tissus Humains par Dosage de l'Activite Globale et Spectroscopie; Obshchee izmerenie i spektroskopiya pri opredelenii al'fa-radioaktivnosti tkanej cheloveka; Evaluacion de la Actividad Alfa en los Tejidos Humanos por Recuento Global y Espectroscopia

    Energy Technology Data Exchange (ETDEWEB)

    Mayneord, W. V.; Hill, C. R. [Physics Department, Institute of Cancer Research, Royal Cancer Hospital, Clifton Avenue, Belmont, Surrey (United Kingdom)

    1964-10-15

    atmosfera y se citan ejemplos de los resultados de las mediciones de aire ligeramente contaminado por esa sustancia. Se describen asimismo procedimientos de medicion del {sup 239}Pu en tejidos humanos normales y se exponen algunos resultados. Se estudia la contribucion aportada por el {sup 210}Po a la dosis de irradiacion natural proveniente del medio ambiente en el esqueleto y en los organos reproductores del hombre. Se demuestra que esa aportacion puede constituir una fraccion significativa de la dosis total recibida. (author) [Russian] Daetsja kratkij obzor programmy po izmereniju al'fa- radioaktivnosti. Vypolnenie programmy, kotoroe pervonachal'no osnovyvalos' na ispol'zovanii prostyh i chuvstvitel'nyh metodov podscheta s pomoshh'ju tonkih cink-kadmij-sul'fidnyh jekranov teper' vkljuchaet ispol'zovanie metoda al'fa-spektroskopii, razrabotannogo dlja bol'shogo kolichestva istochnikov s nizkoj specificheskoj aktivnost'ju. S pomoshh'ju jetih metodov mozhno izmerjat' urovni specificheskoj aktivnosti vplot' do 10{sup -13} kjuri/g i v nekotoryh sluchajah poluchat' razreshenie jenergii porjadka 40 kjev narjadu s nezavisimoj identifikaciej, osnovannoj na izmerenii perioda poluraspada. Daetsja opisanie dvuh al'fa-spektrometrov, ispol'zovannyh pri izmerenii bol'shogo kolichestva obrazcov, vzjatyh u ljudej, i materialov okruzhajushhej sredy. Osoboe vnimanie udeljalos' izucheniju Po{sup 210} , kotoryj, kak izvestno, prisutstvuet v rjade pishhevyh produktov i tkanjah chelovecheskogo organizma. Opisany metody issledovanija Pu{sup 239} v atmosfere i privedeny primery rezul'tatov izmerenija zagrjaznenija vozduha malymi kolichestvami jetogo materiala. Opisany metody izmerenija Pu{sup 239} v normal'nyh tkanjah u cheloveka i privedeny nekotorye rezul'taty. Obsuzhdaetsja rol' Ro{sup 210} v povyshenii urovnja estestvennogo fonovogo obluchenija kostej i reproduktivnyh organov cheloveka. Pokazano, chto jeta dolja mozhet sostavljat' znachitel'nuju chast' obshej poluchennoj dozy. (author)

  15. The use of Kr{sup 85} for the measurement of leaks in hermetically sealed components; Emploi du krypton-85 pour la detection des fuites dans les pieces hermetiquement scellees; Opredelenie utechki germeticheski izolirovannykh komponentov pri pomoshchi Kr''8''5; Empleo del {sup 85}Kr para la deteccion de fugas en piezas hermeticamente selladas

    Energy Technology Data Exchange (ETDEWEB)

    Berry, P F; Cameron, J F [Wantage Research Laboratory (A. E. R. E.), Wantage, Berks. (United Kingdom); Wilson, E J [Radiochemical Centre, Amersham, Bucks. (United Kingdom)

    1962-01-15

    los poros del material constituye el principal factor que limita la sensibilidad del primer metodo; los autores tratan de la gravedad de este efecto al estudiar la aplicacion de este metodo a la deteccion de fugas en cartuchos para transistores. La introduccion de gas radiactivo en la pieza antes de cerrarla presenta la ventaja de que es posible controlar el contenido de la pieza durante un largo periodo de tiempo. Con esto se elimina la posibilidad de que el orificio por el que se produce la fuga se obture pasajeramente en el momento en que se aplican la presion o el vacio, obteniendose ademas un valor integrado de la magnitud de la fuga, esto es, un dato de mayor utilidad. (author) [Russian] Radioaktivnye gazy obespechivayut metod opredeleniya utechki germeticheski izolirovannykh komponentov, kotoryj v osobykh sluchayakh mozhet byt' bolee chuvstvitel'nym na neskol'ko poryadkov moshchnosti, nezheli obychnye metody opredeleniya utechki. Dlya ehtoj tseli v nastoyashchem doklade privoditsya opisanie ispol'zovaniya Kg{sup 85}. Gaz mozhno ispol'zovat' dvumya putyami. V pervom sluchae komponent pogruzhaetsya v gaz pri kontroliruemykh usloviyakh davleniya i vremeni, a ego prosochivsheesya kolichestvo pod davleniem izmeryaetsya posleduyushchim kontrolirovaniem radiatsii, pronikshej cherez stenki komponenta. Vo vtorom sluchae nekotoroe kolichestvo aktivnogo gaza vvoditsya do izolyatsii, a posleduyushchaya poterya aktivnosti yavlyaetsya meroj skorosti utechki. Vybor metoda zavisit ot razmerov komponenta i ego naznacheniya. Osnovnym ogranicheniem chuvstvitel'nosti v pervom metode yavlyaetsya zarazhenie poverkhnosti, blagodarya proniknoveniyu gaza v pory materiala komponenta; razmery ehtogo proniknoveniya obsuzhdayutsya v primenenii metoda po opredeleniyu utechki v obolochkakh poluprovodnikovykh triodov. Predvaritel'noe zapolnenie komponenta aktivnym gazom do germetizatsii imeet preimushchestvo v tom, chto dlitel'nyj kontrol' nad soderzhaniem komponenta vozmozhen. EHto

  16. Radioautography in the Study of Radioisotopically-Tagged Substances in Insect Control; L'autoradiographie dans l'etude de substances marquees au moy en de radioisotopes utilisees dans la lutte contre les insectes; Primenenie radioavtografii pri izuchenii substantsij, mechennykh radioizotopami, v bor'be s nasekomymi; La autorradiografia en el estudio de las sustancias marcadas con radioisotopos utilizadas en la lucha contra los insectos

    Energy Technology Data Exchange (ETDEWEB)

    Joftes, D. L. [New England Deaconess Hospital, Boston, MA (United States)

    1963-09-15

    histologicos corrientes. Un ligero desplazamiento ascendente del foco pone de relieve los detalles de la autorradiografia que, de este modo, se puede estudiar en relacion con el tejido. En la memoria se describen en detalle las tecnicas recomendadas y el sencillo equipo necesario, que suele encontrarse en todos los laboratorios. (author) [Russian] Pri otnositel'no nebol'shikh zatratakh truda bolee novye,uproshchenie metody radioavtografii obespechivayut bol'shuyu chuvstvitel'nost' i tochnost' na mikroskopicheskom urovne vo mnogikh fazakh issledovanij odnokratno i dvukhkratno mechennykh radioizotopami insektitsidov, naprimer pri issledovanii pogloshcheniya, peremeshcheniya, metabolizma i opredelenii ostatkov insektitsidov v rasteniyakh, u nasekomykh i tavotnykh. Fiziologiya i biokhimiya obluchennykh nasekomykh yavlyayutsya drugimi oblastyami primeneniya radioavtografii. Vozdejstvie oblucheniya, osobenno na generativnye organy, izuchaetsya s pomoshch'yu mechennogo tritiem timidina. V to vremya kak metody scheta dayut mnogo informatsii o nalichii i kolichestve radioizotopov, s pomoshch'yu radioavtografii mozhno poluchit' dannye o fakticheskikh mestakh ikh otlozheniya v tkanyakh ili dazhe v chastyakh kletok. Poluchenie takoj razreshayushchej sposobnosti vozmozhno na obychnykh postoyannykh gistologicheskikh preparatakh, v to vremya kak pri primenenii metodov scheta dlya polucheniya tochnogo rezul'tata trebuetsya razrushenie obraztsa. Standartnaya radioavtografiya osobenno udobna dlya proslezhivaniya malykh kolichestv izotopov, sostavlyayushchikh doli mikrokyuri, ochen' slabykh izluchatelej, takikh, kak radioaktivnyj uglerod (C{sup 14}) i tritij (H{sup 3}), togda kak dlya rabot s ochen' slabymi izluchatelyami s primeneniem metodov scheta trebuyutsya ochen' dorogie i slozhnye pribory. Metod ne imeet ogranichenij v otnoshenii izotopov, primenyaemykh dlya mecheniya, tak kak dazhe izlucheniya tritiya i C''1''4 budut fiksirovat'sya na yadernoj fotoehmul'sii. Dejstvitel'no, tritij i C''1

  17. The use of radioactive tracers in lubrication and wear research; Emploi des indicateurs radioactifs dans les recherches sur la lubrification et l'usure; Ispol'zovanie mechenykh atomov pri issledovanii voprosov smazki i iznosa; Utilizacion de los indicadores radiactivos en los estudios sobre la lubricacion y el desgaste

    Energy Technology Data Exchange (ETDEWEB)

    Campbell, R B; Grunberg, L; Milne, A A; Wright, K H.R. [Lubrication, Wear and Mechanical Engineering Aspects of Corrosion Division, National Engineering Laboratory, Thorntonhall, Glasgow (United Kingdom)

    1962-01-15

    , se insertan en las camisas de un motor diesel varillas de fundicion que contienen iridio-192, y se mide la radiactividad de las muestras de aceite. Se utilizan particulas radiactivas de hierro y de oxido de hierro para estudiar su influencia en los procesos de desgaste. Empleando acido estearico marcado con carbono-14 y azufre-35 en solucion, se investiga la reactividad de las superficies del metal sometido a tensiones. Por otra parte, se esta estudiando la velocidad de reaccion de los aditivos lubricantes de engranajes haciendo pasar impulsos breves de corriente electrica a traves de hilos metalicos sumergidos en soluciones de compuestos marcados con azufre-35 y fosforo-32. Se investiga la formacion de peliculas antidesgaste en la superficie de los dientes de los engranajes en funcion de la carga, de la velocidad y del tiempo de funcionamiento. En muchas de estas aplicaciones se tropieza con la dificultad de tener que calcular las cantidades absolutas de materiales presentes en las peliculas que se forman en la superficie, o en las particulas originadas por el desgaste, a partir de la actividad medida. Con tal objeto se han elaborado metodos de calibracion. (author) [Russian] Vo mnogikh problemakh smazki i iznosa sleduet izuchat' protsessy, vstrechayushchiesya v ochen' malykh masshtabakh. Pri ehtom uspeshno ispol'zovalas' bol'shaya chuvstvitel'nost' indikatornykh metodov. Nekotorye primery podobnogo ispol'zovaniya ehtikh metodov dayutsya iz raboty otdela smazki i amortizatsii Natsional'noj tekhnicheskoj laboratorii Velikobritanii. Kolichestvennoe sootnoshenie mezhdu metallicheskoj peredachej i poverkhnost'yu treniya izuchaetsya kak funktsiya skorosti proskal'zyvaniya nerovnosti poverkhnosti i nalichiya smazochnykh materialov. Dlya togo, chtoby proanalizirovat' raspredelenie iznosa, chugunnye probki, soderzhashchie iridij-192, vstavlyayutsya v prokladki dizelya. Radioaktivnost', imeyushchayasya vo vzyatykh obraztsakh masla, zameryaetsya. Radioaktivnoe zhelezo i

  18. Influence of Aerosol Properties and the Respiratory Pattern upon Hazards Evaluation following Inhalation Exposure; Influence des Caracteristiques des Aerosols et du Regime de la Respiration sur l'Evaluation des Risques, a la Suite d'une Exposition par Inhalation; Vliyanie svojstv aehrozolej i obraztsa respiratora na otsenku opasnosti oblucheniya pri vdykhanii radioaktivnykh veshchestv; Influencia de las Propriedades de los Aerosoles y de su Esquema Repiratorio en la Evaluacion de los Riesgos Consecutivos a una Exposicion por Inhalacion

    Energy Technology Data Exchange (ETDEWEB)

    Thomas, R. G. [Lovelace Foundation for Medical Education and Research, Albuquerque, NM (United States)

    1964-10-15

    diferentes caracteristicas fisicas y quimicas de las particulas inhaladas y las tres variables biologicas antes mencionadas. Se presentan datos acerca de la cantidad y localizacion de la sustancia depositada, determinados en funcion del tamano de las particulas inhaladas, en el caso de un compuesto soluble en los tejidos (cloruro de cesio) y en el caso de un compuesto insoluble en los tejidos (Cloruro de torio). Asimismo, se facilita informacion encaminada a explicar las variaciones que se producen en la distribucion de un elemento en los tejidos y en su excrecion, segun su forma fisicaca y quimica al ser inhalado. Se exponen datos proporcionados por los experimentos realizados con aerosoles de muchas sustancias, entre ellas las ya mencionadas, para poner de manifiesto la peculiar correlacion existente entre la carga corporal y la excrecion por via fecal durante los primeros dias consecutivos a la exposicion. Se demuestra la ventaja de efectuar a la vez analisis de orina y de heces para determinaciones biologicas. Utilizando los anteriores datos como ejemple, se ponen de relieve los errores inherentes a los actuales metodos de evaluacion practica de riesgos, basados en el analisis de muestras de aire y de sustancias biologicas. (author) [Russian] Imeetsja tri vazhnyh biologicheskih parametrov, neobhodimyh dlja ocenki opasnosti v rezul'tate popadanija soedinenij v organizm ljubym putem. K nim otnosjatsja: 1) kolichestvo otlozhivshegosja v organizme veshhestva; 2) raspredelenie i kinetika peremeshhenij v organizme; 3) skorost' vyvedenija veshhestva. Pri sluchajnom obluchenii v celom otsutstvujut dostatochnye kolichestvennye dannye po jetim punktam. V doklade izlagajutsja dannye jeksperimental'nyh issledovanij na zhivotnyh, pokazyvajushhie sootnoshenie mezhdu razlichnymi fizicheskimi i himicheskimi harakteristikami vdyhaemyh chastic i upomjanutymi vyshe tremja biologicheskimi peremennymi. Predstavleny dannye o kolichestve i lokalizacii otlozhivshegosja materiala kak funkcii

  19. Automatic Sample and Data Processing in Studies of Calcium Metabolism in Rats; Traitement Automatique des Echantillons et des Donnees dans l'Etude du Metabolisme Calcique chez le Rat; Avtomaticheskaya obrabotka obraztsov i dannykh pri izuchenii obmena kal'tsiya u krysy; Tratamiento Automatico de las Muestras y de los Datos en el Estudio del Metabousmo del Calcio en la Rata

    Energy Technology Data Exchange (ETDEWEB)

    Onkelinx, C.; Richelle, L. J.; Debras, J. [Universite de Liege (Belgium)

    1965-10-15

    , s odnoj storony, izuchenija jevoljucii indikatornoj dozy kal'cija-45, vvedennoj vnutrivenno, a s drugoj -izmerenija himicheskogo i radiohimicheskogo balansa. Sochetanie jetih dvuh tipov informacii i ih matematicheskaja obrabotka vedet k resheniju voprosa o sozdanii obshhej modeli obmena kal'cija, chto daet vozmozhnost' znat' kolichestvo obmenivaemyh kletok i velichinu razlichnyh faktorov, takih kak pogloshhenie v kishechnike, vydelenie iz pochek i kishechnika, otlozhenie kal'cija v kostjah i vyhod kal'cija iz kostej. Nashi raboty byli oblegcheny primeneniem avtomaticheskih metodov izmerenija obrazcov i obrabotki dannyh, kotorye i sostavljajut predmet nastojashhego doklada. Obrabotka obrazcov. Izmerenija radioaktivnosti proizvodili na obrazcah plazmy nebol'shogo ob'ema (20 - 40 {lambda}), kotorye brali povtorno iz prob mochi i fekalij, vzjatyh v opredelennoe vremja. Izmerenie aktivnosti provodili na schetchike antisovpadenij so olabym fonovym shumom, vkljuchajushhim avtomaticheskoe ustrojstvo dlja otbora prob i jelektronnuju ustanovku, izmerenija kotoroj registrirovalis' pechatajushhim ustrojstvom. Obsuzhdajutsja original'nye metody podgotovki obrazcov i ih izmerenija, v chastnosti statisticheskie uslovija scheta, vyverennye na vychislitel'noj mashine pri kazhdom izmerenii. Obrabotka dannyh. Proizvoditsja na jelektronnoj vychislitel'noj mashine IBM 7040, kotoroj zadajut raschetnuju programmu i ispol'zujut nabor neobrabotannyh dannyh ob jeksperimente v vide perforirovannyh kartochek na kazhdoe zhivotnoe otdel'no. Dannye obrabatyvajutsja v tri jetapa: 1) preobrazovanie neobrabotannyh dannyh i raschet standartnogo otklonenija izmerenij kazhdogo obrazca; 2) analiz krivoj udel'noj radioaktivnosti plazmy v zavisimosti ot vremeni i raschet ego matjomaticheskogo vyrazhenija; vyverka na tochnost' teoreticheskoj krivoj s pomoshh'ju jeksperimental'nyh izmerenij; 3) reshenie polnoj modeli po raschetu razlichnyh parametrov. Poluchennye rezul'taty byli otpechatany obychnym

  20. The Role of Exponential and PCTR Experiments at Hanford in the Design of Large Power Reactors; Roles Respectifs des Experiences Exponentielles et du Reacteur d'Etude des Constantes Physiques de Hanford dans les Etudes de Grands Reacteurs de Puissance; Znachenie ehksponentsial'nykh opytov i opytov na reaktore PCTR pri proektirovanii bol'shikh ehnergeticheskikh reaktorov v khehnforde; Papel de los Experimentos Exponenciales y del Reactor PCTR de Hanford en el Proyecto de Grandes Reactores de Potencia

    Energy Technology Data Exchange (ETDEWEB)

    Heineman, R. E. [General Electric Company, Richland, WA (United States)

    1964-02-15

    introduccion de cambios en el manejo de los reactores ya existentes, como instrumentos de investigacion en la esfera de la fisica de los reactores y como medio de ensenanza. Compara tambien los capitales invertidos en esas instalaciones y los gastos de explotacion. Describe el perfeccionamiento de nuevas tecnicas experimentales que estas instalaciones permiten aplicar con miras a satisfacer la demanda de nuevos datos experimentales. Es menester tener presentes todos estos datos para poder predecir la evolucion de las necesidades y las tendencias futuras en el empleo de estas instalaciones para los estudios de los reactores de potencia. La memoria describe sucintamente el reactor para el estudio de constantes fisicas e indica la manera en que se piensa utilizarlo en el marco de esa evolucion. (author) [Russian] V Hjen- fordskih laboratorijah v techenie pochti 15 let provodjatsja jeksponencial'nye reaktornye iz- merenija na grafito-uranovyh reshetkah. Hotja rezul'taty jetih opytov ispol'zovalis' dlja opredelenija laplasianov predlagaemyh proizvodjashhih reaktorov, oni takzhe sodejstvovali razvitiju ponimanija fiziki reaktorov jetih sistem. Davno priznano, chto poleznost' kri- ticheskogo opyta ogranichena vvidu ego bol'shogo masshtaba i nedostatochnoj chuvstvitel'nosti v otnoshenii nebol'shih lokalizovannyh narushenij sistemy. Zatem mysl' byla napravlena na sozdanie cel'nogo opytnogo reaktora, v kotorom bylo by svedeno do minimuma kolichest- vo materialov, neobhodimyh dlja poluchenija nuzhnyh dannyh. Jeta popytka privela k postrojke usovershenstvovannoj kriticheskoj ustanovki s neskol'kimi zonami reaktora dlja izmerenija fizicheskih konstant PCTR. Ustanovka ispol'zuetsja dlja okazanija sodejstvija pri razrabot- ke proekta po fizike reaktorov dlja neskol'kih jenergeticheskih reaktorov. Krome togo,re- aktor RSTNjavljaetsja ustanovkoj obshhego naznachenija dlja provedenija izmerenij poperechnyh sechenij na reaktore i dlja opredelenija differencial'nyh i integral'nyh fizicheskih para

  1. Determination on Mice and other Organisms of the RBE of High-Energy Protons and Electrons; Efficacite Biologique Relative sur la Souris et d'Autres Organismes des Protons et des Electrons De Haute Energie; Opredelenie obeh pri obluchenii myshej i drugikh organizmov protonami i ehlektronami vysokikh ehnergij; Determinacion de la Eficacia Biologica Relativa de los Protones y de los Electrones de Elevada Emergia en el Raton y en Otros Organismos

    Energy Technology Data Exchange (ETDEWEB)

    Bonet-Maury, P.; Baarli, J.; Kahn, T.; Dardenne, G.; Frilley, M.; Deysine, A. [Institut du Radium, Paris (France)

    1964-03-15

    {sub 50}, supervivencia media, reduccion del timo y de los testiculos) es proxima a 1; esta EBR corresponde al valor medio de la transferencia lineal de energia (TLE) de las particulas y, en el caso de los protones, no parece que sufra aumento alguno por efecto del valor local mas elevado del TLE de las 'estrellas' de espalacion. (author) [Russian] Izuchalis' obshhie jeffekty pri obluchenii myshej letal'nymi dozami protonov s jenergiej 157 i 592 Mjev i jelektronov s jenergiej 150 i 950 Mjev. {gamma} obluchennyh zhivotnyh nabljudalis te zhe obshhie simptomy, chto i posle rentgenovskogo i gamma-obluchenija. S pomoshh'ju primenennyh biologicheskih testov ne bylo o b naruzheno nikakih fenomenov, specifichnyh dlja chastic vysokih jenergij. Ustanovlennaja po chetyrem pokazateljam OBJe (LD-50, srednjaja vyzhivaemost', umen'shenie zobnoj zhelezy i semennikov) malo otklonjaetsja ot 1 ; jeta OBJe so o tvetstvue t srednej LPE chastic, i dlja protonov ne kazhetsja uvelichennoj za schet povyshenija mestnogo LPE zvezd raspada. (author). (author)

  2. Diagnosis of Intracranial Lesions by Gamma-Encephalography using Human Serum Albumin Labelled with Iodine-131; Diagnostic des lesions intracraniennes par la gamma-encephalographie a l'aide de la serumalbumine humaine marquee a l'iode 131; Diagnoz vnutricherepnykh povrezhdenij putem gamma-ehntsefalografii pri pomoshchi mechenoj iodom-131 albuminovoj syvorotki cheloveka; Diagnostico de las lesiones intracraneanas por gammaencefalografia mediante sero- albumina humana marcada con yodo-131

    Energy Technology Data Exchange (ETDEWEB)

    Planiol, Therese [Institut National d' Hygiene, Paris (France)

    1959-07-01

    reconocimiento son tumores de los hemisferios y la otra mitad, tumores de la fosa posterior y pinealomas. Con este metodo pueden observarse los abcesos, los hematomas y los aneurismas cirsoides. Los accidentes cerebro-vasculares han originado en la tercera parte de los casos anomalias en los graficos; la mitad de los graficos anormales presenta el aspecto caracteristico de los reblandecimientos (o trombosis), lo cual permite su diagnoestico; el resta de los graficos es semejante a los graficos tumorales, siendo la unica diferencia que, en caso de accidente vascular, las anomallas desaparecen despues de algunas semanas; las dos terceras partes de estas lesiones dan un gammaencefalogram a negativo. Los aneurismas arteriales, los centros epileptoegenos no tumorales y las distintas afecciones puramente neurologicas presentan resultados normales en el 96 por ciento de los casos. La exploration del cerebro mediante albumina radiactiva puede suministrar informaciones de gran valor, no solo respecta de la existencia de una lesion neuro-quirurgica y su localizacion exacta, sino tambien respecto de su naturaleza. En particular, facilita grandemente el diagnostico de un meningeoma, de un glioblastoma o de metastasis. Esta, ademas de las informaciones relativas al diagnoestico positivo y topografico, hace que este procedimiento sea uno de los metodos mas interesantes de diagnostico neurologico. Por otra parte, la gammaencefalografia constituye uno de los medios mas seguros de descubrir la reaparicion de estas enfermedades y de observar los efectos de una terapeutica medica o de un tratamiento radioterapico. (author) [Russian] 600 chelovek bylo podvergnuto obsledovaniyu pri pomoshchi albuminovoj syvorotki, mechenoj iodom-131, prichem izmerenie radioaktivnosti provodilos' soedinennymi s cherepnoj korobkoj stsintyalitsionnym ischetchikami v dva priema: sperva spustya dva chasa i zatem dvadtsat' chetyre chasa posle radioaktivnoj in{sup e}ktsii. Iz sta semidesyati pyati vnutricherenykh opukholej

  3. A neutron depolarization study of magnetic inhomogeneities in weak-link superconductors. Issledovanie magnitnykh neodnorodnostej v sverkhprovodnikakh so slabymi svyazyami metodom depolyarizatsii nejtronov

    Energy Technology Data Exchange (ETDEWEB)

    Zhuchenko, N K; Yagud, R Z [AN SSSR, Leningrad (Russian Federation). Inst. Yadernoj Fiziki

    1993-09-01

    Neutron depolarization measurements in the mixed state of both high-T[sub c] and low-T[sub c] weak-link superconductors have been carried out. Samples of YBCO, BSCCO, SnMo[sub 6]S[sub 8] and 0.5 Nb-0.5 Ti of different magnetic prehistory were analyzed at temperatures T 4.2 K under applied magnetic fields II <= 16.5 kOe. We ascribe the appearance of magnetic inhomogeneities and their hysteresis behaviour to the interaction between dipole magnetic fields (diamagnetic and paramagnetic ones) and applied magnetic fields.

  4. Neutron scattering for lithium-ion batteries: analysis of materials and processes; Primenenie rasseyaniya nejtronov dlya analiza protsessov v litij-ionnykh akkumulyatorakh

    Energy Technology Data Exchange (ETDEWEB)

    Balagurov, A. M.; Bobrikov, I. A. [Ob' ' edinennyj Inst. Yadernykh Issledovanij, Dubna (Russian Federation); Samojlova, N. Yu. [Ob' ' edinennyj Inst. Yadernykh Issledovanij, Dubna (Russian Federation); Nauchno-Issledovatel' skij Inst. Yadernoj Fiziki im. D.V.Skobel' tsyna, MGU im. V.V.Lomonosova, Moscow (Russian Federation); Drozhzhin, O. A.; Antipov, E. V. [Moskovskij Gosudarstvennyj Univ. im. M.V.Lomonosova, Moscow (Russian Federation)

    2014-07-01

    The use of neutron scattering to study the structure of materials used in portable power sources (mainly lithium-ion batteries) and to examine the structural changes of these materials during the electrochemical processes is reviewed. We consider the applications of several basic techniques: diffraction, small angle and inelastic neutron scattering, neutron reflectometry and neutron imaging. The experimental facilities that already exist in advanced neutron sources and a series of representative experiments are reviewed. The results of some studies of lithium-containing materials and lithium-ion batteries performed at the IBR-2 pulsed research reactor at the Joint Institute for Nuclear Research (Dubna) are presented.

  5. Pulsed-Source Experiments with Multiplying and Non-Multiplying Heavy Water Systems; Experiences a l'Aide de Sources Pulsees sur des Systemes Multiplicateurs et Non Multiplicateurs a Eau Lourde; Ehksperimenty s pul'siruyushchim istochnikom na nerazmnozhayushchikh i razmnozhayushchikh ustrojstvakh s tyazheloj vodoj; Experimentos con Fuentes Pulsadas en Sistemas de Agua Pesada Multiplicadores y No Multiplicadores

    Energy Technology Data Exchange (ETDEWEB)

    Utzinger, E.; Heer, W.; Lutz, H. R. [Swiss Federal Institute for Reactor Research, Wuerenlingen (Switzerland)

    1965-10-15

    {sub 2}O. Los autores comparan los valores experimentales con los parametros de la teoria dedos grupos y examinan seguidamente las limitaciones de esta tecnica. Ademas, midieron directamente, utilizando los datos proporcionados por la 'cola' de neutrones retardados de los impulsos, los valores de la reactividad en sistemas acusadamente subcriticos con p Greater-Than-Or-Equal-To -40 dolares. Estos resultados concuerdan satisfactoriamente con los de las mediciones estaticas. (author) [Russian] Na podkriticheskom ustrojstve MINOR Shvejcarskogo federal'nogo instituta po reaktornym issledovanijam v Wuerenlingen osushhestvlena shirokaja programma izmerenij pri pomoshhi pul'sirujushhego istochnika tipa {sup 3}T(d,n){sup 4}He. Provedeny tri kategorii jeksperimentov dlja izmerenija: a) konstant raspada mgnovennyh nejtronov v estestvennyh i slegka obogashhennyh re- shetkah; b) urovnja reaktivnosti v podkriticheskom sostojanii pri pomoshhi raspada mgnovennyh nejtronov i hvostov zamedlennyh nejtronov v estestvennyh i slegka obogashhennyh reshetkah; i v) anizotropii diffuzionnoj konstanty teplovyh nejtronov v tjazheloj vode s pogruzhen- nym v nee raznym kolichestvom parallel'no raspolozhennyh pustyh trubok raznyh razmerov. Dlja kazhdogo ustrojstva potok teplovyh nejtronov, zavisjashhij ot vremeni, izmerjali v razlichnyh polozhenijah po vysote dlja poluchenija konstant raspada mgnovennyh nejtronov dlja razlichnyh osevyh laplasianov (analiz Fur'e) bez izmenenija vysoty dejstvitel'nogo urovnja tjazheloj vody. Jeksperimental'nye znachenija sravnivajutsja s teoreticheskimi dvu- gruppovymi parametrami. Obsuzhdajutsja nedostatki jetogo metoda. 'dopolnenie k jetomu putem ispol'zovanija hvosta zamedlennyh pul'sirujushhih nejtronov neposredstvennym obra- zom byla izmerena reaktivnost' v sil'no podkriticheskih sistemah s p Greater-Than-Or-Equal-To -40$. Rezul'taty sravnivajutsja so statisticheskimi izmerenijami, i oni dajut ves'ma horoshee sovpadenie. (author)

  6. Organizacija inžinjerijskih radova pri rušenju deonice puta / Organization of engineering works during demolition of a road section / Организация инженерных работ по демонтажу участков дорог

    Directory of Open Access Journals (Sweden)

    Nenad V. Kovačević

    2016-01-01

    Full Text Available Prilikom upotrebe minsko-eksplozivnih sredstava za rušenje elemenata, materijala i objekata jako je bitna organizacija izvođenja radova prilikom pripreme i u toku izvođenja samog rušenja. Za izvođenje ovih radova u Vojsci Srbije postoje specijalizovane i namenske jedinice. Radi se o jedinicama jedne od specijalnosti u okviru roda inžinjerije, pionirske specijalnosti, koje egzistiraju u okviru inžinjerijskih bataljona, odnosno brigada KoV. Organizacija inžinjerijskih radova zapravo predstavlja iznalaženje najcelishodnijeg rešenja u pogledu upotrebe pokretnih stvari, ali i naprezanja ljudstva, pri rušenju konkretnog objekta – deonice puta. Pri tome veliki problem predstavlja literatura, a posebno norme za izvođenje radova, jer izuzev nekoliko skripti za internu upotrebu, sve se svodi na literaturu iz sedamdesetih ili početak osamdesetih godina prošlog veka. Posebno je razrađena primena mera zaštite prilikom upotrebe eksploziva. / When using explosive ordnance for the demolition of elements, materials and facilities, organization is very important in the preparation of works as well as during demolition itself. In the Army of Serbia, for this kind of works, there are specialized expert units within Land Forces engineering battalions or brigades. The organization of the engineering work given in the article is a purposeful solution, regarding the use of movable property and stress imposed on people as well, when performing demolition of a concrete structure - road section. Lack of literature is a big drawback, especially lack of norms for demolition works. Except for some unofficial lectures for internal use, most of the literature dates back to the seventies or early eighties. A special emphasis in this paper is given to the application of protective measures in the use of explosives. / В процессе применения минно-взрывных средств для сноса элементов, материалов

  7. Pointing Out Main Factors from Design, Construction and Operating Experience of Existing Nuclear Plants for Assisting in Shaping Future Nuclear Power Programmes; Les principaux criteres degages de l'etude, de la construction et de l'exploitation des centrales nucleaires existantes et leur interet pour l'elaboration des futurs programmes d'energie d'origine nucleaire; Ukazanie osnovnykh faktorov proektirovaniya, stroitel'stva i opyta ehkspluatatsii sushchestvuyutsikh atomnykh ehlektrostantsij, chto dolzhno pomoch' pri sostavlenii budushchikh programm atomnoj ehnergetiki; Principales consideraciones relativas al diseno, construccion y explotacion de centrales nucleares, encaminadas a facilitar la preparacion de programas futuros de energia nucleoelectrica

    Energy Technology Data Exchange (ETDEWEB)

    Dalla Volta, F. [Comitato Nazionale per l' Energia Nucleare, Rome (Italy)

    1963-10-15

    de tipo bien conocido, la memoria estudia en que medida estas instalaciones pueden construirse sin dificultades y satisfacer la demanda de la red; tambien en este aspecto se refiere al creciente papel que cabe atribuir en Italia a la energia nucleoelectrica. Por ultimo, la memoria re calca hasta que punto el acopio y la interpretacion de los datos relativos a las tres centrales nucleares que ahora comienzan a funcionar en Italia facilitarian el proyecto de instalaciones futuras. Alude a la posibilidad de establecer desde ya ciclos de combustible mas extensos. (author) [Russian] Rassmatrivayutsya naibolee vazhnye tekhnicheskie i ehkonomicheskie faktory, kotorye vyyavilis' pri proektirovanii, stroitel'stve i ehkspluatatsii pervykh promyshlennykh atomnykh ehlektrostantsij i kotorye mogut byt' ochen' poleznymi pri sozdanii v budushchem novykh atomnykh ehlektrostantsij, uchityvaya osoben-nosti uslovij v Italii. Nyneshnee sostoyanie tekhnologii proizvodstva i ee postoyannoe razvitie v khode osushchestvleniya proektov pokazali sushchestvovanie opredelennoj tendentsii k snizheniyu kak stoimosti toplivnogo tsikla, tak i stoimosti komponentov stantsii. Ehtomu takzhe blagopriyatstvuyut vozrastayushchaya tendentsiya k uvelicheniyu razmerov ehlektrostantsii i tot fakt, chto analiz ehnergeticheskogo prognoza ehnergosistemy govorit o nalichii blagopriyatnykh uslovij dlya stroitel'stva ehlektrostantsij bol'shej moshchnosti na yadernom toplive vmesto stantsij na obychnom toplive, iskhodya iz predskazannykh izmenenij v stoimosti proizvodstva ehnergii, obuslovlennykh uvelicheniem kolichestva atomnykh ehlektrostantsij. Rassmatrivayutsya osnovnye faktory, kotorye dolrsny byt' uchteny v budushchem pri planirovanii ehlektrostantsij s uchetom takzhe grafikov stroitel'stva i ispytaniya. Opredelennyj upor sdelan na problemu protivoavarijnoj obolochki s uchetom takzhe spetsificheskikh uslovij Italii v otnoshenii nekotorykh aspektov ehtoj problemy; v rezul'tate udobnogo razmeshcheniya

  8. Status of computational and experimental correlations for Los Alamos fast-neutron critical assemblies; Correlation entre les calculs et les experiences sur les ensembles critiques a neutrons rapides de Los Alamos; Sostoyanie vychislitel'nykh i ehksperimental'nykh korrelyatsij dlya Los-Alamosskoj kriticheskoj sistemy na bystrykh nejtronakh; Conjuntos criticos de neutrones rapidos de Los Alamos; correlacion entre resultados calculados y experimentales

    Energy Technology Data Exchange (ETDEWEB)

    Hansen, G E [Los Alamos Scientific Laboratory, University of California, Los Alamos, NM (United States)

    1962-03-15

    'nost ' vychislennogo spektra i kriticheskikh razmerov k razlichnym modelyam perenosa nejtronov (transportnye i linejnye priblizheniya) i arifmeticheskim priblizheniyam (ogranichennye uglovye segmentatsii i mnogogruppovy e predstavleniya) dlya neskol'kikh tipichnykh sistem, chtoby pomoch' ustanovit' neobkhodimye raschetnye detali. Sravneniya mezhdu ehksperimentom i vychislennymi dannymi budut vklyuchat' takzhe v dopolnenie k spektral'nym indeksam i kriticheskim razmeram, vremya zhizni nejtronov i doli zapazdyvayushchikh nejtronov. (author)

  9. A Contribution to the Study of the Oxidation of Uranium Monocarbide in Carbonic Anhydride at High Temperatures; Contribution a l'etude de l'oxydation du monocarbure d'uranium dans l'anhydride carbonique aux temperatures elevees; Vklad v izuchenie voprosa okisleniya monokarbida urana v ugol'nom angidride pri povyshennykh temperaturakh; Contribucion al estudio de la oxidacion del monocarburo de uranio en anhidrido carbonico a temperaturas elevadas

    Energy Technology Data Exchange (ETDEWEB)

    Desrues, R; Paidassi, J.; Darras, R. [Centre d' Etudes Nucleaires, Saclay (France)

    1963-11-15

    monocarburo, sea que provengan del uranio o bien del dicarburo, disminuye la resistencia de este compuesto a la oxidacion; ello puede atribuirse sobre todo al hecho de que aquellas sufren una oxidacion muy seria, especialmente a raiz de las tensiones mecanicas que causa. 3. En todos los casos, el proceso de oxidacion puede caracterizarse por una energia de activacion igual a 29 000 cal/M, valor muy proximo al correspondiente a la oxidacion del uranio metalico en el mismo gas y a la difusion del oxigeno en el oxido de uranio (UO{sub 2}) que se forma. (author) [Russian] Obraztsy monokarbida urana, poluchennogo dvumya razlichnymi metodami, i obraztsy ker- meta sostava 96,7 ves% U-3,3 ves% S podvergalis' dejstviyu ugol'nogo angidrida, tshchatel'no ochishchennogo ot kisloroda i vodyanykh parov, v intervalakh 350 - 600 deg. C, i nablyudalos' ikh okislenie odnovremenno mikrograficheskim i gravimetricheskim sposobami pri pomoshchi termovesov Ehjro. Bylo otmecheno sleduyushchee: 1) Krivye vyrazhayut uvelichenie vesa kak funktsiyu vremeni i vnachale nosyat yarko vyrazhennyj linejnyj kharakter, zatem bystro vozrastayut, chto ob{sup y}asnyaetsya, v osnovnom,progressivnym razlozheniem obraztsov. Vprochem, poluchennye dannye uvelicheniya vesa yavlyayutsya bolee nizkimi chem te, kotorye byli opublikovany do nastoyashchego vremeni, chto sleduet, ochevidno, pripisat' bolee vysokoj chistote upotreblennogo ugol'nogo angitrida i ochen' neznachitel'noj poristosti ispol'zovannogo monokarbida urana. 2) Nalichie vklyuchenij v monokarbid, kotorye sootvetstvuyut uranu ili dikarbidu, umen'shaet stojkost' ehtogo materiala k okisleniyu, chto sleduet pripisat', glavnym obrazom,katastroficheskomu okisleniyu samikh vklyuchenij iz-za mekhanicheskikh svyazej. 3) Vo vsekh sluchayakh protsess okisleniya mozhet byt' okharakterizovan ehnergiej aktivatsii, ravnoj 29 000 kal/mol', velichinoj, ochen' blizkoj k toj, kotoraya sootvetstvuet okisleniyu metallicheskogo urana v tom zhe gaze i diffuzii kisloroda v okisi

  10. Preparation of C{sup 14}-labelled tetrazolium salts and tracer study of the tetrazene-formazan rearrangement; Preparation de sels de tetrazolium marques au carbone-14 et etude de la transposition tetrazene-formazan, au moyen d'indicateurs radioactifs; Izgotovlenie mechennykh C{sup 14} solej tetrazosoedinenij i issledovanie pri pomoshchi indikatorov peregruppirovok tetrazona-formazana; Preparacion de sales de tetrazolio marcadas con {sup 14}C y estudio de la transposicion tetraceno-formazan con ayuda de trazadores

    Energy Technology Data Exchange (ETDEWEB)

    Marton, Joseph; Meisel, Julia [Central Research Institute for Chemistry of the Hungarian Academy of Sciences, Budapest (Hungary); Gosztonyi, Thomas [Institute of Organic Chemical Technology, Technical University, Budapest (Hungary)

    1962-03-15

    etre isole dans des conditions appropriees. On a etudie cette transformation en utilisant du benzaldehyde-phenylhydrazone marque au carbone-14, et l'on a pu verifier ainsi qu'il s'agit d'une reaction intramoleculaire. (author) [Spanish] Partiendo del benzaldehido-(1-{sup 14}C), el autor ha sintetizado el TTC-(5-{sup 14}C), el NT-(5, 5'-di-{sup 14}C) (neotetrazolio) y el BT- (5, 5'-di-{sup 14}C) (azul de tetrazolio). Las sales de mono- o ditetrazolio se obtienen con buen rendimiento y se logran productos de elevada actividad especifica. El autor determino la pureza de las muestras por cromatografia sobre papel. En las sales de ditetrazolio encontro algunas impurezas, que consiguio determinar cuantitativamente; asimismo establecio algunas caracteristicas de sus estructuras. Por otra parte, elaboro un metodo para obtener sales de ditetrazolio marcadas con {sup 14}C de elevada pureza. En la sintesis del formazan, el precursor de la sal de tetrazolio, se obtiene un producto intermedio inestable cuya estructura es similar a la del tetraceno. Este compuesto sufre una rapida transposicion en medio alcalino para dar lugar al formazan. Es posible aislar el producto intermedio si se trabaja en condiciones adecuadas. El autor estudia la transposicion utilizando la fenilhidrazona del benzaldehido marcado con {sup 14}C, y ha podido comprobar que se trata de una reaccion intramolecular. (author) [Russian] Iskhodya iz benzal'degida - [1-C{sup 14}] udalos' izgotovit' [5-C{sup 14}]-TTC, [5,5'di-C{sup 14}]-NT (neoterazolij) [5,5'di-C{sup 14}]-BT (sinij tetrazolij). Vykhody kak dlya monotetrazoliya, tak i dlya ditetrazoliya dostatochno znachitel'ny i produkty mogut byt' polucheny s bol'shoj udel'noj aktivnost'yu. Stepen' chistoty obraztsov byla issledovana pri pomoshchi khromatograficheskoj bumagi. V solyakh ditetrazoliya bylo obnaruzheno nekotoroe kolichestvo primesej, chto pozvolilo vyvesti zaklyucheniya otnositel'no ikh struktury i kolichestva. Byl vyrabotan metod mechennykh C{sup 14

  11. Plasma Equilibrium in a Torus with High-Frequency Fields and Plasma Heating Resulting from the Development of a Powerful Beam of ''Escaping Electrons''; Plasma Torique: Stabilisation au Moyen de Champs de Haute Frequence et Chauffage par Formation d'un Flux Intense d'Electrons 'Emballes'; Ehksperimental'noe issledovanie ravnovesiya plazmy v tore pri nalichii vysokochastotnykh polej i nagreva plazmy za schet razvitiya moshchnogo puchka ''ubegayushchikh ehlektronov''; Equilibrio del Plasma en un Toro, en Presencia de Campos de Alta Frecuencia, y Calentamiento del Plasma por el Desarrollo de un Haz Potente de 'Electrones Desbocados '

    Energy Technology Data Exchange (ETDEWEB)

    Demirkhanov, R. A.; Kirov, A. G.; Stotland, M. A.; Malykh, N. I.; Horasanov, G. L.; Vishnevskij, N. K.; Gutkin, T. I.; Jampol' skij, I. R. [Fiziko-Tehnicheskij Institut Gosudarstvennogo Komiteta po Ispol' zovaniju Atomnoj Ehnergii SSSR, Sukhumi, SSSR (Russian Federation)

    1966-04-15

    la corriente, es decir, en 1 {mu}s, aproximadamente, es de unos 20 J, lo que indica que la conductividad del plasma es anormalmente pequena. Cuando el calentamiento se efectua por un campo electrico intenso, se observa una fuerte emision de rayos X, cuya energfa es del orden de 100 keV, acompanada por radiacion parasita de microondas, de frecuencias proximas a la del plasma. (author) [Russian] Daetsja opisanie jeksperimentov, provedennyh na ustanovke ''RT-0''. Ustanovka predstavljaet soboj tor s bol'shim diametrom 100 sm i malym - 10 sm. Vdol' kamery sozdaetsja toroidal'noe magnitnoe pole velichinoj okolo 6 * 10{sup 3} je. Plazma podzhigaetsja pri davlenii R Greater-Than-Or-Equal-To 5 * 10{sup -4} tor posredstvom prodol'nogo vihrevogo jelektricheskogo polja (f = 8,3 Mgc). Imeetsja vrashhajushheesja po malomu diametru vysokochastotnoe (f = 540 kgc) kvadrupol'noe pole s H{sub {phi}} =200 je u stenok kamery. Pri razrjade batarei maloinduktivnyh kondensatorov na vitki, ulozhennye vdol' tora, v ob{sup e}me kamery mozhet generirovat'sja vihrevoe jelektricheskoe pole zatuhajushhego tipa s maksimal'noj naprjazhennost'ju E{sub z} =200 v/sm pri dlitel'nosti poluperioda okolo 1 mksek. Cel'ju jeksperimentov javljaetsja: 1) vyjasnenie ravnovesija i stabilizacii plazmy v kvazipostojannom toroidal'nom magnitnom pole s pomoshh'ju vrashhajushhihsja mul'tipol'nyh vysokochastotnyh polej, predpolagaja, chto sila toroidal'nogo drejfa, ravnaja Tilde-Operator (r/R)nkT dolzhna kompensirovat'sja davleniem jelektromagnitnoj volny H{sup 2}/8{pi} 2) issledovanie nagreva plazmy za schet dissipacii ''puchkovoj'' neustojchivosti, vozbuzhdaemoj moshhnym potokom 'ubegajushhih jelektronov' pri jelektricheskih poljah v plazme E{sub z} >> E{sub c} Na ustanovke provodilis': a) mikrovolnovye izmerenija plotnosti plazmy s pomoshh'ju interferometra s dlinoj volny {lambda} = 2 mm i nabljudenie granicy plazmy po otrazhennomu signalu na volne {lambda} = 17 mm; b) registracija provedenija linii vo vremeni i

  12. The Role of Non-Destructive Testing in Test-Reactor Operation at the National Reactor Testing Station; Role des Essais Non Destructifs dans l'Exploitation des Reacteurs d'Essai au Centre National d'Essais de Reacteurs; Rol' nedestruktivnykh ispytanij pri ehkspluatatsii ispytatel'nykh reaktorov na natsional'noj stantsii po ispytaniyam reaktorov; Papel de los Metodos No Destructivos en la Explotacion de los Reactores de la National Reactor Testing Station

    Energy Technology Data Exchange (ETDEWEB)

    Francis, W. C.; Brown, E. S.; Burdick, E. E.; Gibson, G. W.; Tingey, F. H. [Phillips Petroleum Company, Atomic Energy Division, Idaho Falls, Idaho (United States)

    1965-10-15

    corrientes de Foucault. Otras tecnicas que han demostrado su utilidad son la inspeccion por penetracion de liquidos, los ensayos con nitrogeno liquido para detector grietas superficiales, los ensayos de recocido termico para determinar ampollas, y la exploracion gamma de placas irradiadas. Muestras de elementos combustibles tomadas estadisticamente se ensayan por metodos hidraulicos para confirmar su integridad estructural, especialmente la estabilidad de la union entre la placa combustible y la placa lateraL Constantemente se intenta mejorar las tecnicas actuales y perfeccionar nuevos procedimientos de inspeccion de caracter no destructivo. (author) [Russian] Bol'shie kapitalovlozhenija (bolee 100 mln. doll. ) v jadernye opytnye reaktory pri Nacional'noj labo- ratorii po ispytaniju reaktorov i neobhodimost' jekspluatirovat' ih bezopasno trebujut vyso- kokachestvennogo kontrolja za reaktorami i opytnymi komponentami v osobennosti za topli- vom i upravljajushhimi sterzhnjami. Pojetomu nedestruktivnye ispytanija igrajut ochen' vazhnuju rol' v opredelenii kachestva jetih komponentov do togo , kak oni ispol'zujutsja na opytnyh reaktorah. Hotja mnogie iz jetih opytov provodjatsja po horosho otrabotannym programmam, tem ne menee bylo razrabotano mnogo unikal'nyh sposobov i shiroko ispol'zuetsja obychnoe oborudovanie. Dolgoe vremja ispol'zovalis' ul'trazvukovye metody v celjah obnaruzhenija rakovin, nediffuzioznosti teplovydeljajushhih jelementov i vnutrennih treshhin. V poslednee vremja jeta rabota byla rasprostranena na avtomaticheskoe skennirovanie krivyh plastin i dlja o b - sledovanija obluchennyh toplivnyh plastin v kanalah dlja hranenija. Ves'ma interesnaja rabota byla provedena v dele primenenija ul'trazvuka dlja obnaruzhenija razryva hrupkih aktivnyh zon, kotoryj mozhet vozniknut' v prcesse izgotovlenija. Metod gamma-skennirovanija dlja opredelenija soderzhanija urana-235 v toplivnyh jele- mentah okazalsja nastol'ko nadezhnym, chto on javljaetsja osnovoj dlja podscheta

  13. Composition and Vacancy Flux Effects in Tracer Diffusion in Silver-Gold Alloys; Effets de la Composition et du Flux de Lacunes sur la Diffusion des Indicateurs dans les Alliages d'Or et d'Argent; Vliyanie sostava i potoka vakansij pri diffuzii indikatorov v splavakh serebra i zolota; Efectos de la Composicion y del Flujo de Huecos Sobre la Difusion de Indicadores en Aleaciones Plata-Oro

    Energy Technology Data Exchange (ETDEWEB)

    Meyer, R. O.; Slifkin, L. [University of North Carolina, Chapel Hill, NC (United States)

    1966-02-15

    desplazamiento del centro de masas correspondiente a la distribucion del indicador oro, la cual no sufre deformacion alguna puesto que D es practicamente independiente de la posicion. El indicador inerte, de particulas finas, permite localizar la interfase original con precision de algunos micrones. Los resultados obtenidos hasta febrero de 1965 senalan que el centro correspondiente a la distribucion del indicador oro se desplaza unos 20 {mu}m hacia el extremo rico en plata. (author) [Russian] Izuchenie samodiffuzii v splavah serebra s zolotom pokazy- vaet, chto jenergii aktivacii monotonno umen'shajutsja s uvelicheniem koncentracii zolota. Rezul'taty jetih issledovanij nel'zja ob{sup j}asnit' ishodja iz teorij, osnovannyh na sootvetst- vujushhih sostojanijah, vlijanii razmera ili teplote rastvorenija; odnako razvitaja Leklerom jelektrostatisticheskaja teorija Lazara pozvoljaet poluchit' polukolichestvennoe soglasie. Umen'shenie predjeksponencial'nyh faktorov s uvelicheniem koncentracii zolota ukazyvaet na to, chto jentropija vakansij dlja migracii linejno umen'shaetsja s izmeneniem sosta- va na 1,5 ROT chistogo serebra do chistogo zolota. V otnoshenii kazhdogo indikatora pri postojannoj temperature kojefficient diffuzii DE zavisimosti ot sostava pokazyvaet shirokij minimum. S pomoshh'ju jetih dannyh, ispol'zuemyh dlja proverki teorij vzaimodejst- vija mezhdu vakansiej i primes'ju, ustanavlivaetsja, chto tol'ko dannye Manninga i Lidiarda dajut udovletvoritel'nye i neprotivorechivye rezul'taty. Pribavlenie bolee podvizhnogo serebra k menee podvizhnomu zolotu fakticheski umen'shaet Bdlja oboih indikatorov; analiz pokazyvaet, chto prisutstvie atoma serebra, smezhnogo s vakansiej, i atoma zolota umen'- shaet chastotu skachka atoma zolota priblizitel'no na velichinzg 0,4. Nalichie shirokogo minimuma na grafike zavisimosti DOT sostava pozvoljaet issledo- vat' vlijanie potoka vakansii na diffuziju indikatora. Para Kirkendalla prigotovljaetsja iz sostavov, simmetrichno smeshhennyh

  14. Investigations of the chemical states of carrier-free phosphorus-32 as extracted into water from pile-irradiated sulphur; Recherches sur les etats chimiques du phosphore-32 sans entraineur obtenu par extraction aqueuse a partir de soufre irradie dans un reacteur; Issledovanie khimicheskogo sostoyaniya svobodnogo ot nositelya fosfora-32 pri izvlechenii ego v vodu iz obluchennoj v yadernom reaktore sery; Estudio de los estados quimicos del fosforo-32 libre de portador que se obtiene por extraccion acuosa del azufre irradiado en un reactor

    Energy Technology Data Exchange (ETDEWEB)

    Dahl, J B; Birkelund, O R [Institutt for Atomenergi, Kjeller, Lillestrom (Norway)

    1962-01-15

    nastoyashchem doklade dayutsya svedeniya otnositel'no khimicheskogo sostoyaniya fosfora-32 v vodnykh rastvorakh na razlichnykh stadiyakh prinyatogo v praktike protsessa polucheniya ehtogo ehlementa. Byli rassmotreny takzhe izmeneniya khimicheskogo sostoyaniya slozhnykh soedine- nij fosfora-32 v konechnykh produktakh v funktsii ot vremeni khraneniya. Bylo obnaruzheno, chto glavnym sostavlyayushchim veshchestvom yavlyaetsya fosfor-32, svyazan- nyj v vide ortofosfata. Po mere khimicheskoj obrabotki kolichestvo ortofosfata uvelichi- los' priblizitel'no s 70% pri nachale izvlecheniya i priblizitel'no do 98% v konechnom produkte svobodnogo ot nositelya fosfora-32. Ostatok sostoyal iz smesi piro-, tri-, tetra- i polifosfatov s dlinnoj tsep'yu (chislo P {>=} 5). Ni vo vremya obrazovaniya, ni vo vremya khraneniya v rastvorakh ne bylo obnaruzheno (kol'tseobraznykh) metafosfatov. EHti rezul'taty pokazyvayut, chto polifosfornye slozhnye soedineniya obrazovalis' v materiale misheni vo vremya oblucheniya. Osoboe vnimanie bylo obrashcheno na adsorbtsiyu svobodnogo ot nositelya fosfora-32 steklyannoj laboratornoj posudoj pri sushchestvuyushchikh ehksperimental'nykh usloviyakh. (author)

  15. Fungal volatile compounds induce production of the secondary metabolite Sodorifen in Serratia plymuthica PRI-2C

    NARCIS (Netherlands)

    Schmidt, R. (Ruth); V. de Jager (Victor); Zühlke, D. (Daniela); Wolff, C. (Christian); J. Bernhardt (Jörg); Cankar, K. (Katarina); Beekwilder, J. (Jules); W.F.J. van IJcken (Wilfred); F. Sleutels (Frank); De Boer, W. (Wietse); Riedel, K. (Katharina); Garbeva, P. (Paolina)

    2017-01-01

    textabstractThe ability of bacteria and fungi to communicate with each other is a remarkable aspect of the microbial world. It is recognized that volatile organic compounds (VOCs) act as communication signals, however the molecular responses by bacteria to fungal VOCs remain unknown. Here we perform

  16. Fungal volatile compounds induce production of the secondary metabolite Sodorifen in Serratia plymuthica PRI-2C

    NARCIS (Netherlands)

    Schmidt, R.L.; de Jager, V.C.L.; Zühlke, D.; Wolff, C.; Bernhardt, J.; Cankar, Katarina; Beekwilder, J.; van Ijcken, W.; Sleutels, Frank; De Boer, W.; Riedel, K.; Garbeva, P.V.

    2017-01-01

    The ability of bacteria and fungi to communicate with each other is a remarkable aspect of the microbial world. It is recognized that volatile organic compounds (VOCs) act as communication signals, however the molecular responses by bacteria to fungal VOCs remain unknown. Here we perform

  17. Hyperfine structure investigations of Pr-I lines in the region 4200-4450 A

    Energy Technology Data Exchange (ETDEWEB)

    Siddiqui, Imran; Khan, Shamim; Tanweer Iqbal, Syed; Windholz, Laurentius [Institute of Experimental Physics, Graz University of Technology, Petersgasse 16, A 8010 Graz (Austria)

    2012-07-01

    Praseodymium I spectral lines were investigated using laser induced fluorescence spectroscopy in a hollow cathode discharge lamp. The investigations led to the discovery of new Pr I energy levels of even and odd parity. A high resolution Fourier transform (FT) spectrum was used to extract promising excitation wavelengths. In the FT spectrum the investigated line 4375.53 A shows up as a narrow peak hfs with a weak SNR. Nevertheless, the line was excited and fluorescence signals were observed on 6 lines (4163 A, 4816 A, 5091 A, 5164 A, 5209 A, 5233 A). The hfs of the line was recorded by scanning the laser frequency and was fitted to obtain angular momentum J and hf constant A of the combining levels. We got J{sub up}=5/2, A{sub up}=1028.30 MHz, J{sub lo}=7/2 and A{sub lo}=861.46 MHz (the subscripts refer to upper and lower level). Assuming an unknown upper level, a known lower level was searched among the known levels having sufficient values of J and A. The level 7617.440 cm{sup -1}, even parity, J{sub lo}=7/2 and A{sub lo}=868 MHz fulfils these requirements. Using the center of gravity wave number of the line 4375.53 A and the energy of the lower level, the unknown upper level was calculated to have 30465.424 cm{sup -1}, odd parity, J{sub up}=5/2 and A{sub up}=1033(6) MHz.

  18. Bakteriološka zagađenost alginatnih otisaka i dimenzionalna stabilnost pri dezinfekciji

    OpenAIRE

    Broz, Mira; Romić, Željko; Omrčen, Ante; Fridrih, Sandra; Ropac, Darko

    1989-01-01

    Istraživanje mikrobiološke zagađenosti alginatnih otisaka nametnulo je potrebu primjene dezinficijensa prije slanja otisaka u laboratorij. Kao praktično zadovoljavajuće pokazalo se petminutno potapanje otisaka u razrjeđenju od 1:50 klorheksidin-glukonata. Postavljen je problem točnosti uzetog otiska nakon dezinfekcije s obzirom na mogućnost utjecaja dezinfeciejnsa na volumen otiska. Originalnom metodom mjerenja otisne mase dokazano je da promjena volumena i površine alginata nije značajna te ...

  19. Opredelenije obščego zemnogo ellipsoida pri uslovii V.V.Brovara

    Czech Academy of Sciences Publication Activity Database

    Burša, Milan; Vatrt, V.; Kouba, J.; Šíma, Zdislav; Jurkina, M. I.

    č. 11 (2002), s. 6-9 ISSN 0016-7126 Institutional research plan: CEZ:AV0Z1003909 Keywords : Earth's ellipsoid * determination * semimajor axis Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics

  20. Protection during work with ionizing radiation sources; Ochrana pri praci se zdroji ionizujiciho zareni

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-31

    The publication has been set up as a textbook for training courses dealing with health protection during work with ionizing radiation, designed for supervisory staff and persons directly responsible for activities which involve the handling of ionizing radiation sources. The book consists of a preface and the following chapters: (1) Fundamentals of ionizing radiation physics; (2) Quantities and units used in ionizing radiation protection; (3) Principles of ionizing radiation dosimetry; (4) Biological effects of ionizing radiation; (5) An overview of sources of public irradiation; (6) Principles and methods of health protection against ionizing radiation; (7) Examples of technical applications of sources of ionizing radiation; (8) Personnel and working environment monitoring; (9) Documentation maintained at sites with ionizing radiation sources; (10) Methods of personnel protection against external irradiation and internal radionuclide contamination; (11) Radiation incidents and accidents; (12) Health care of personnel exposed to the ionizing radiation risk; (12) Additional radiation protection requirements in handling radioactive substances other than sealed sources; (13) Measurement and metrology. (P.A.).

  1. UPORABA SPLOŠNIH PRAVIL CIVILNEGA PRAVA PRI SKLENITVI POGODBE O ZAPOSLITVI

    OpenAIRE

    Poredoš Tropenauer, Nataša

    2011-01-01

    Zgodovinsko gledano, je bilo delovno pravo del civilnega prava. Uveljavljeno je bilo stališče, da delovno razmerje nastane s službeno pogodbo, s katero se je ena stranka za plačilo, zavezala drugi stranki nekaj dati, storiti, dopustiti. Z razvojem kapitalizma pa je postala pomembna tudi delavčeva osebnost, prav tako se je v delovno razmerje začela vmešavati država. Delovno pravo je postalo del javnega in ne več samo zasebnega prava. Delovno razmerje med delavcem in delodajalcem nastane ...

  2. Biological dosimetry in case of combined radiation injuries. Biologicheskaya dozimetriya pri kombinirovannykh radiatsionnykh porazheniyakh

    Energy Technology Data Exchange (ETDEWEB)

    Vladimirov, V G; Teslenko, V M

    1990-11-01

    The state of biological dosimetry methods and prospects for their development are considered. Attention is paid to biological indicators of radiation injuries caused by nuclear weapons. It is noted, that determination of the number of lymphocytes in the blood in case of combined radiation injuries should be concerned with great care and in each case the analysis results should reffered to critically and supported by the data from other investigations. Promissing are the methods related to dermination of reticulocyte number in the peripheral blood within the irradiation dose range, causing bone marrow form of radiation syndrome, method of leukocyte adhesion and some other methods based on the change of biophysical caracteristics of cell membranes. To increase the information efficiency it is necessary to combine these methods with the methods, based on genetic change registration, and to develop a combined method.

  3. VIDEOIGRE KOT DIDAKTIČNI PRIPOMOČEK PRI POUKU SLOVENSKEGA JEZIKA IN KNJIŽEVNOSTI

    OpenAIRE

    Čeh, Aleš

    2016-01-01

    Videoigre so trenutno najpomembnejši medij v zabavni industriji 21. stoletja. Njihova pot je bila tlakovana s številni težavami in neprilikami, zlasti v splošni družbeni recepciji, saj jih je strokovna in splošna javnost dolgo časa (in jih ponekod še) obravnavala kot nekoristne, občasno celo škodljive. Slednje seveda ni absolutno res, ni pa tudi popolnoma ovrgljivo. Videoigre so prav tako kot drugi mediji izjemno širok pojem, med njimi najdemo tako estetsko izjemno dovršene umetniške naslove,...

  4. Testikulárna degenerácia pri Huntingtonovej chorobe

    Czech Academy of Sciences Publication Activity Database

    Bohuslavová, Božena; Mačáková, Monika

    2015-01-01

    Roč. 25, č. 1 (2015), s. 8-10 ISSN 1210-1737 R&D Projects: GA MŠk ED2.1.00/03.0124; GA MŠk(CZ) 7F14308 Institutional support: RVO:67985904 Keywords : Huntington ´s disease * testes * sperm Subject RIV: EB - Genetics ; Molecular Biology

  5. ODPADNI MATERIALI PRI LIKOVNIH DEJAVNOSTIH S PODROČJA KIPARSTVA V PREDŠOLSKEM OBDOBJU

    OpenAIRE

    Pejčić, Lidija

    2014-01-01

    Živimo v času tehnološkega napredka in rasti svetovnega prebivalstva, ki hkrati za svoj obstoj ustvarjata v okolju neugodne posledice. Sedanje ekološko stanje nas spodbuja k razmišljanju in reševanju položaja, v katerega je zabredel človek s sodobnim, a za naravo ogrožajočim načinom življenja. Narava je izčrpana od posegov vanjo, okolje pa je prepolno z negativnimi vplivi materialnega obilja. Človek mora najti zagon in poti, da bo izboljšal kakovost življenja zase in za prihodnje rodov...

  6. IKONIČNE REPREZENTACIJE NEKATERIH MATEMATIČNIH POJMOV PRI OSNOVNOŠOLCIH

    OpenAIRE

    Podgoršek, Manja

    2015-01-01

    Ikonične reprezentacije so reprezentacije, ki predstavljajo prehod med enaktivnimi in simbolnimi reprezentacijami. Ikonične reprezentacije matematičnih pojmov na razredni stopnji so v veliki večini primerov grafične. V magistrski nalogi smo s pomočjo preizkusa znanja želeli ugotoviti, na kakšen način učenci od 5. do 8. razreda osnovne šole grafično ponazarjajo vnaprej podane matematične pojme (odštevanje s prehodom, številski izraz z oklepaji, izraz dela celote in potenca). Zanimalo nas je tu...

  7. Complex urbarchitectonic structures of Priština and Novi Pazar cities

    OpenAIRE

    Beganović Džemila

    2014-01-01

    Contemporary urban development has changed the traditional cities all over the world. In our region, the typical Balkan cities of oriental origin, structure and outlook were almost totally transformed in the second half of the 20th century. Modern movement brought new models of urban organization, different communication concepts and a variety of concepts of modern buildings. Among others, the idea of complex urbarchitectonic structures in urban tissue spre...

  8. VRIJEDNOST KARBOKSITERAPIJE PRI LIJEČENJU KRONIČNE RANE POTKOLJENICE

    OpenAIRE

    KOVAČEVIĆ, JADRANKA; SINOŽIĆ, TAMARA

    2015-01-01

    Karboksiterapija je potporna metoda liječenja kroničnih rana koja se provodi kutanim ili subkutanim ubrizgavanjem medicinskog ugljičnog dioksida (Co2). osnovni princip djelovanja ubrizganog plina Co2 je korekcija tkivne hipoksije temeljem Bohrovog efekta. Djelujući na endotelne faktore rasta potiče neoangiogenezu te stimuliraju ibroblaste na sintezu kolagena što sve zajedno dovodi do boljeg zacjeljivanja rana. Brojna su područja primjene karboksiterapije: od liječenja kroničnih rana, bolesti ...

  9. Student Scientific Conference PriF UK 2011. Proceedings of reviewed contributions

    International Nuclear Information System (INIS)

    Galambos, M.; Dzugasova, V.

    2011-01-01

    The conference included the following sections: (i) Biology (336 contributions); (ii) Chemistry (56 contributions); (iii) Didactics (6 contributions); (iv) Environmental Science (30 contributions); (v) Geography (38 contributions); (vi) Geology (50 contributions); Contributions relevant of INIS interest have been inputted to INIS.

  10. Presoja notranjih kontrol pri obračunu davka na dodano vrednost na primeru "Podjetja x"

    OpenAIRE

    Majcen, Borut

    2016-01-01

    Poslovanje podjetja si je ob odsotnosti notranjih kontrol nemogoče predstavljati. Podjetja so podvržena raznim tveganjem, še posebej v današnjih razmerah globalnega poslovanja, ko se podjetja soočajo z vedno novimi izzivi, kar prinaša tudi nova tveganja. Najučinkovitejši ukrep za obvladovanje tveganj predstavlja vzpostavitev sistema notranjih kontrol. Obvladovanje tveganj pa ne poteka samo na ravni podjetja kot celote, ampak je prisotno na vseh področjih delovanja podjetja, torej tudi na p...

  11. Uporaba načel vitke proizvodnje pri proizvodnji žarometov

    OpenAIRE

    Šverko, Marko

    2012-01-01

    Magistrsko delo obravnava možnost uvajanja principov vitkosti v proizvodnji avtomobilskih žarometov. Uvodoma so strnjeno obdelani nekateri sodobni koncepti modeliranja in vodenja proizvodnih procesov. Podana je primerjava glavnih poudarkov in identificirane so stične točke med njimi. Vitka proizvodnja je v nadaljevanju obravnavana bolj poglobljeno. Opisani so glavni gradniki sistema vitke proizvodnje in priporočeni pristopi k uvajanju vitkosti v organizacije. Glavno vodilo vit...

  12. Student Scientific Conference PriF UK 2014. Proceedings of reviewed contributions

    International Nuclear Information System (INIS)

    Galambos, M.; Dzugasova, V.

    2014-01-01

    The conference included the following sections: (i) Biology (159 contributions); (ii) Chemistry (54 contributions); (iii) Geology (25 contributions); (iv) Geography (35 contributions); (v) Didactics (7 contributions); (vi) Environmental Science (28 contributions);) Contributions relevant of INIS interest have been inputted to INIS.

  13. Student Scientific Conference PriF UK 2017. Proceedings of reviewed contributions

    International Nuclear Information System (INIS)

    Galambos, M.; Dzugasova, V.; Bobovska, A.

    2017-01-01

    The conference included the following sections: (i) Biology (132 contributions); (ii) Chemistry (52 contributions); (iii) Geology (33 contributions); (iv) Geography (15 contributions); (v) Didactics (4 contributions); (vi) Environmental Science (9 contributions);) Contributions relevant of INIS interest (42 contributions) has been inputted to INIS.

  14. Student Scientific Conference PriF UK 2013. Proceedings of reviewed contributions

    International Nuclear Information System (INIS)

    Galambos, M.; Dzugasova, V.

    2013-01-01

    The conference included the following sections: (i) Biology (154 contributions); (ii) Chemistry (60 contributions); (iii) Geology (15 contributions); (iv) Geography (32 contributions); (v) Didactics (11 contributions); (vi) Environmental Science (25 contributions);) Contributions relevant of INIS interest has been inputted to INIS.

  15. Student Scientific Conference PriF UK 2016. Proceedings of reviewed contributions

    International Nuclear Information System (INIS)

    Galambos, M.; Dzugasova, V.; Sevcovicova, A.; Bobovska, A.

    2016-01-01

    The conference included the following sections: (i) Biology (122 contributions); (ii) Chemistry (62 contributions); (iii) Geology (25 contributions); (iv) Geography (14 contributions); (v) Didactics (5 contributions); (vi) Environmental Science (12 contributions);) Contributions relevant of INIS interest (53 contributions) has been inputted to INIS.

  16. Student Scientific Conference PriF UK 2015. Proceedings of reviewed contributions

    International Nuclear Information System (INIS)

    Galambos, M.; Dzugasova, V.; Sevcovicova, A.

    2015-01-01

    The conference included the following sections: (i) Biology (154 contributions); (ii) Chemistry (52 contributions); (iii) Geology (27 contributions); (iv) Geography (29 contributions); (v) Didactics (6 contributions); (vi) Environmental Science (27 contributions);) Contributions relevant of INIS interest has been inputted to INIS.

  17. GEODETSKE MERITVE IN ČASOVNO PLANIRANJE MONITORINGA PRI GRADNJI GARAŽNE HIŠE

    OpenAIRE

    Žižek, Marko

    2011-01-01

    Diplomska naloga pokriva problematiko geodetskih kontrolnih meritev (monitoringa) med gradnjo. Glavni cilj diplomske naloge je prikazati metode monitoringa in različne metode geodetskega merjenja. Podrobno sta opisani merski metodi niveliranja in tahimetrije, kot tudi instrumenti, ki jih uporabljamo. Predstavljena je metoda niveliranja na konkretnem primeru in sicer gra za objekt garažne hiše v centru mesta Maribor. V nalogi je tudi predstavljen terminski plan samih meritev. Plan je prikazan ...

  18. Depresivnost in anksioznost pri mladostnikih z različnimi duševnimi motnjami:

    OpenAIRE

    Groleger, Urban; Strah-Trotovšek, Darja; Tomori, Martina

    1996-01-01

    In the present study, depression and anxiety were evaluated in a sample of 81 secondary school-aged adolescents, hospitalised at the Adolescent Department, Centre for Mental Health, Ljubljana. The results were compared with those obtained in a control group of 122 secondary school students. The purpose of the study was to identify risk factors for adolescent anxiety and depressive disorders. Data were collected using a clinical interview, the Beck DepressionInventory - BDT and the State and T...

  19. Hazard of radioactive releases resulted from coal burning; Opasnost` vysvobozhdeniya radioaktivnykh produktov pri szhiganii uglya

    Energy Technology Data Exchange (ETDEWEB)

    Gabbard, V

    1995-09-01

    Consideration is given to the data, pointing to the fact, that coal-burning power plants release of radioactive substances, contained in gaseous wastes, is not less, than the same one of nuclear power plants. The necessity of regulating emission of these substance in atmosphere by analogy with nuclear power industry is shown. 1 fig.

  20. Seventh national conference of the South African Section of the PRI

    International Nuclear Information System (INIS)

    1983-01-01

    This publication contains the papers delivered at the 7th national conference of the South African Section of the Plastics and Rubber Institute held on the 10th and 11th November 1983 in Johannesburg. This papers cover information on the various applications of rubber and plastic and other organic polymers. One of this papers look at studies in cross-linking PVC footwear soling compounds using gamma-irradiation

  1. Uporaba kreativnih medijev pri delu z mladimi v družbi tveganja

    OpenAIRE

    Zaner, Tamara

    2017-01-01

    Working as social pedagogues, we constantly meet young people. In a modern society, the youth face insecurity, doubts, and consequently, also distress that affects all aspects of their lives. The present paper is based upon Beck’s conceptualisation of the modern society. To understand the position of the young within the society I part from the concept of “life orientation”, developed by the social pedagogue Hans Thiersch. The present thesis has two purposes. One of them is to check how creat...

  2. Sprendimų priėmimo samprata ir tyrimų tradicijos

    OpenAIRE

    Šarkutė, Ligita

    2009-01-01

    This article aims to analyse the process of decision making which is the object of interdisciplinary research. The definition of decision making is presented and the stages, limitations and simplification strategies of decision making are also discussed. This paper also deals with the scientific disciplines which examines decision making and with research paradigms widely used in decision making analysis. These paradigms are rational decision making and naturalistic decision making. The artic...

  3. Zaznana povezanost med komponentami zavarovalne storitve pri uporabnikih dopolnilnega zdravstvenega zavarovanja

    OpenAIRE

    Šebjan, Urban

    2015-01-01

    V prispevku proučujemo odnose med komponentami storitve dopolnilno prostovoljno zdravstveno zavarovanje (DPZZ), ki jim uporabniki pripisujejo različno vlogo. Raziskovalni model s štirimi konstrukti (pomembnost kakovosti, dodatnih kritij, cenovnih popustov storitve dpzz in ugleda zavarovalnice) in indikatorjem pomembnost zavarovalne premije dpzz smo preverili z modeliranjem strukturnih enačb (SEM) na vzorcu 300 slovenskih uporabnikov storitve DPZZ. Ugotovili smo, da se pomen komponente storitv...

  4. Zaznana povezanost med komponentami zavarovalne storitve pri uporabnikih dopolnilnega zdravstvenega zavarovanja:

    OpenAIRE

    Šebjan, Urban

    2013-01-01

    V prispevku proučujemo odnose med komponentami storitve dopolnilno prostovoljno zdravstveno zavarovanje (DPZZ), ki jim uporabniki pripisujejo različno vlogo. Raziskovalni model s štirimi konstrukti (pomembnost kakovosti, dodatnih kritij, cenovnih popustov storitve dpzz in ugleda zavarovalnice) in indikatorjem pomembnost zavarovalne premije dpzz smo preverili z modeliranjem strukturnih enačb (SEM) na vzorcu 300 slovenskih uporabnikov storitve DPZZ. Ugotovili smo, da se pomen komponente storitv...

  5. Prison Inmate Information System: The Case of Yola Central Pri son ...

    African Journals Online (AJOL)

    PROF. OLIVER OSUAGWA

    inmates. There are two major types of convict ... This includes type of disposals like ..... Text. Table 1: Input Specification Guide. Detail Design. The designed system consist of different modules ... package: such as spread sheet, word processor.

  6. Effektivnost' dipiridamola pri diabeticheskoy retinopatii u bol'nykh insulinnezavisimym sakharnym diabetom

    Directory of Open Access Journals (Sweden)

    Tamara Miroslavovna Milen'kaya

    1999-06-01

    Full Text Available Актуальность. Одним из препаратов, тормозящих агрегацию тромбоцитов и препятствующих образованию тромбов в сосудах, является дипиридамол. Цель. Оценка эффективности применения дипиридамола при диабетической ретинопатии у больных ИНСД. Материалы и методы В зависимости от методов лечения пациенты бы ли разделены на 4 группы: 1-ю группу составили 17 больных, которым проводилось сочетанное лечение - лазерная аргоновая коагуляция и дипиридамол (курантил N75, во 2-ю группу вошли 15 больных, которым проводили только лазерную аргоновую коагуляцию сетчатки; 3-я группа (16 больных получала только дипиридамол; 4-я группа (контрольная - 14 больных без лечения. Результаты. В 1-й группе улучшение отмечено у 3 (21,4% больных. Во 2-й группе больных (только лазерное лечение улучшение отмечено у 2 (16,7%, у 4 (33,3% больных отмечено ухудшение процесса, что связано с увеличением по площади и высоте отека сетчатки, возможны новые кровоизлияния. В 3-й группе больных, которые получали только дипиридамол, улучшение отмечено у 2 (15,4% Выводы. У больных ИНСД с выраженными сосудистыми изменениями на глазном дне необходимо проводить лечение препаратом дипиридамол в сочетании с лазерной коагуляцией сетчатки.

  7. Vozmozhnosti sokhraneniya nizhney konechnosti pri kriticheskoy ishemii u bol'nykh sakharnym diabetom

    Directory of Open Access Journals (Sweden)

    A V Pokrovskiy

    2002-12-01

    Full Text Available Поражение магистральных артерий нижних конечностей при сахарном диабете (СД наблюдается в 3-5 раз чаще, чем при изолированном атеросклерозе. Высказывается мнение, что существует тесная генетическая связь между СД типа 2 и атеросклеротическими процессами в артериях. Течение атеросклероза при диабете гораздо агрессивнее, у больных диабетом частота встречаемости критической ишемии примерно в 5 раз выше, чем в остальной популяции; трофические нарушения развиваются у 10% пациентов с СД в пожилом возрасте. При выявлении критической ишемии пациент с диабетом оказывается перед альтернативой потери конечности в ближайшие 6 мес. ? около 40-50% ампутаций нижних конечностей по поводу периферической артериальной недостаточности выполняется у больных диабетом. Результаты исследования Basle показали, что высокие? ампутации выполняются в 11 раз чаше при СД, чем у остальных пациентов, причем ампутации требуются у более молодых людей.

  8. Seimo narių informacinė elgsena sprendimų priėmimo procese

    OpenAIRE

    Blagnienė, Renata

    2013-01-01

    Decisions of the highest authorities condition the welfare of society. Therefore, the issue of the racionalisation of their decisions is very important. The need to reveal the grounds of the decisions of lawmakers calls for investigating their information behaviour, i.e. their behaviour in the process of information seeking, its optimization and application in the process of decision-making. The lack of research of information behaviour (from the point of view of lawmakers rather than of info...

  9. Vyuziti pocitacove simulace pri navrhu klimatizace nove galerie v objektu Sovovych mlynu

    NARCIS (Netherlands)

    Lain, M.; Bartak, M.; Drkal, F.; Hensen, J.L.M.

    2001-01-01

    Simulation in engineering the ventilation and air-conditioning of a new art gallery in Sovovy mlýny. The paper attempts to outline the current state-of-the-art in the Czech Republic regarding the use of integrated building performance simulation as a design tool. This is illustrated by a recent

  10. Ninth national conference of the South African Section of the PRI

    International Nuclear Information System (INIS)

    1987-01-01

    This publication contains the papers of the ninth national conference of the South African Section of the Plastics and Rubber Institute held at Johannesburg on the 22nd and 23rd October 1987. The papers cover the different applications of polymers and two seminars particularly discuss the chemical radiation effects on polymers

  11. Vpliv osebnosti na vedenje pri igranju računalniških iger

    OpenAIRE

    Grudina, Rok

    2017-01-01

    Razvoj računalnikov je od konca 20. in na začetku 21. stoletja strmo narasel. Računalnike danes uporabljamo na vseh področjih. Mladostniki jih največkrat uporabljajo med preživljanjem prostega časa za igranje računalniških iger. Tako kot računalniki so se tudi računalniške igre skozi čas razvijale, da bi zadovoljile potrebe najbolj zahtevnih uporabnikov. Tako lahko danes vsak dobi igro po svojem okusu. Igre, ki so grafično izjemne, igre z zanimivo zgodbo in izzivi. Omogočajo vživetje v virtua...

  12. BOL I SMJERNICE ZA SUZBIJANJE BOLI PRI KRONIČNOJ RANI

    OpenAIRE

    PERSOLI-GUDELJ, MARIJANA; LONČARIĆ-KATUŠIN, MIRJANA; MIŠKOVIĆ, PETAR

    2016-01-01

    U ovom preglednom članku opisan je patomehanizam nastanka bolnog osjeta sa posebnim osvrtom na pojavu boli kod kronične rane. Prikazane su smjernice (preporuke) za njeno liječenje. U liječenju je stavljen naglasak na farmakoterapiju (analgetici). Kao temelj racionalne primjene analgetika preporuča se »trostupanjska» ljestvica SZO-e. Istaknuta je potreba kombinacije farmakoterapije s nefarmakološkim postupcima (kirurški, fi zikalni). Posebno je istaknut pozitivni učinak VIP svjetla na ubrza...

  13. Obrazovanie Vzroslykh pri Probleme Dosuga (Adult Education and the Problem of Leisure)

    Science.gov (United States)

    Darinskii, Anatolii V.

    1969-01-01

    Adult education in the Soviet Union must find flexible new methods, preferably including tourism or other elements of recreation, to raise adults' cultural standards and intellectualize their free time while helping them improve their work qualifications and professional skills. (Author/LY)

  14. Bodo znanstveniki priče vnovičnemu stvarjenju sveta?

    CERN Multimedia

    Skerl, Jure

    2007-01-01

    V podzemlju blizu Ženeve bodo prihodnje leto opravili najpomembnejši fizikalni poskus, odkar je bila na začetku prejšnjega stoletja potrjena Einsteinova relativnostna teorija - Nekateri znanstveniki so tako vznemirjeni, da ponoči ne zatisnejo več oči. (1/2 page)

  15. Prison Inmate Information System: The Case of Yola Central Pri1son ...

    African Journals Online (AJOL)

    This advancement leads to automation of system processes. ... storage of data, easy access and retrieval of information to authorized users, ... In addition, there is provision to search and view reports of both current and discharged prisoners.

  16. Razvoj mikrostrukture pri izdelavi gradientnega materiala H13-Cu s tehnologijo LENS

    OpenAIRE

    Artiček, Uroš

    2014-01-01

    Tehnologija LENS predstavlja sodobno dodajalno tehnologijo nanašanja kovinskih materialov. Prikazana je idejna zasnova uporabe visokotehnoloških materialov v orodjih za brizganje umetnih mas ter orodjih za tlačno litje lahkih kovin in njihovih zlitin, izdelanih z omenjeno tehnologijo. V praksi se pogosto zgodi, da pride med strjevanjem do odstopanj dimenzijskih in oblikovnih toleranc izdelka zaradi neenakomerne porazdelitve temperature v orodju ter posledično v izdelku med ohlajanjem. Hkrati ...

  17. Gammametry of sea bottom in prospecting for minerals. Gammametriya morskogo dna pri poiskakh poleznykh iskopaemykh

    Energy Technology Data Exchange (ETDEWEB)

    Shatsov, A N [Vsesoyuznyj Nauchno-Issledovatel' skij Inst. Yadernoj Geofiziki i Geokhimii, Moscow (USSR)

    1977-01-01

    The main aspects of study of the natural gamma field in the geological investigations of sea bottom are considered. Problems of development of sea scintillation radiometers for continuous (in profiles) and discrete, in (in stations) measurements of the natural gamma-radiation of the superficial layer of modern sea sediment and rock of sea bottom in conditions of natural occurence are discussed. The significance of gammametry of shallow-water zones, in the Caspian, Baltic, Black and Japan seas for the study of the geological structure of the sea bottom and its mineral base is shown. Geophysical methods are briefly described which must be used in combination with gammametry of the sea bottom. According to the Soviet and foreign sources the future of using spectrometry of natural and also induced and captured gamma radiation is shown for the study of ferro-manganese and phosphorus concretions, depressions in the sea bottom, filled by highly mineralized brines and silts.

  18. The role of radiotherapy in breast conserving treatment; Uloha radioterapie pri prsnik zachovavajucej liecbe

    Energy Technology Data Exchange (ETDEWEB)

    Mardiak, J.; Mego, M.; Palacka, P.; Rajec, J.; Liskova, S.; Chovanec, M. [Univerzita Komenskeho v Bratislave, Bratislava (Slovakia)

    2012-07-01

    This book offers chapters on diagnosis and treatment of breast cancer. The text is intended for physicians preparing for Clinical Oncology attestation. The attention is mostly paid to systemic treatment. The chapters dealing with the diagnosis, surgical treatment and radiotherapy are focused only on the aspects which are necessary for medical oncologist [Slovak] Kniha predklada kapitoly z diagnostiky a liecby karcinomu prsnika. Text je urceny pre lekarov pripravujucich sa na atestaciu z klinickej onkologie. Vacsia pozornost bola venovana systemovej liecbe. Kapitoly zaoberajuce sa diagnostikou, chirurgickou liecbou a radioterapiou su zamerane iba na tie aspekty uvedenych kapitol, ktore su potrebne pre pracu klinickeho onkologa.

  19. Chasing halorespirers: High throughput multiplex detection of dechlorinating bacteria using Pri-Lock probes

    Energy Technology Data Exchange (ETDEWEB)

    Maphosa, F.; Doorn, R. van; Vos, W. de; Cor Schoen, C.; Smidt, H.

    2009-07-01

    Bioremediation management strategies for sites contaminated with chlorinated compounds require monitoring technologies that enable simultaneous detection and quantification of a wide range of microorganisms involved in reductive dechlorination. Many multiplex, quantitative detection methods available suffer from compromises between the level of multiplexing, throughput and accuracy of quantification. (Author)

  20. Chalk effect on PVC cross-linking under irradiation; Vliyanie mela na sshivanie PVKh pri obluchenii

    Energy Technology Data Exchange (ETDEWEB)

    Chudinova, V V; Guzeev, V V; Mozzhukhin, V B; Pomerantseva, Eh G; Nozrina, F D; Zhil` tsov, V V; Zubov, V P

    1994-12-31

    Effect of nonmodified and modified chalk on curing degree of polymer matrix was studied under-irradiation of PVC-compositions. Films of the compositions (100 mass part 7 PVC, 0-100 mas.part of chalk, 2.5 - lead sulfate, 1.5 - lead stearate and 0.3 - glycerin) were irradiated up to absorbed dose 0.1 MGy in an inert medium. Content of gel-fraction after boiling in THF was determined with use of IR spectroscopy. It was established, that intensive dehydrochlorination and polymer curing took place on chalk particle surface. Network fixed strongly chalk particles. However, chalk inhibited processes of dehydrochlorination and PVC curing, increasing amount of noncured PVC in polymer matrix.

  1. PROSUDBA KVALITETE I KVANTITETE DOBIVENE KOSTI UPORABOM BIFAZNOG ß-TRIKALCIJFOSFATA/ HIDROKSILAPATITA PRI PODIZANJU DNA SINUSA

    OpenAIRE

    Jelušić, Damir

    2014-01-01

    Razvoj dentalne implantologije unaprijedio je različite kirurške metode regeneracije kosti, a jedna od njih jest i podizanje dna sinusa. Svrha ovoga rada bila je provedba kliničkog istraživanja u kojemu su se koristila dva različita sintetska koštana nadomjestka te analiza njihovih svojstava s obzirom na biokompatibilnost, uspješnost regeneracije kosti i utjecaj na stabilnost ugrađenih implantata. Zbog toga je obavljeno 60 zahvata podizanja dna sinusa kod 43 pacijenta podj...

  2. Legislativní problematika zpracování pryžového odpadu

    OpenAIRE

    Harant, Petr

    2011-01-01

    This diploma thesis deals with the issue of rubber waste legislative focusing on waste tyres. The aim of the thesis is a thorough analysis of current legislative including newly prepared alterations with emphasis on specific lingering problems. A project of secondary material recycling, which has been created in current legal conditions, will be introduced. The project is assessed in terms of project managment methodology and the thesis concludes by suggesting an ideal project managment appro...

  3. FLAVOUR: Friendly Location-aware conference Assistant with priVacy Observant architectURe

    NARCIS (Netherlands)

    Kavitha Muthukrishnan, K.; Meratnia, Nirvana; Lijding, M.E.M.

    Context-aware applications are emerging on the daily basis and location information proves to be one of the key components to develop context-aware applications upon. This stems from the fact that location information enables and facilitates reasoning about what users are doing (user’s behavioural

  4. Prying the Gates Wide Open: Academic Freedom and Gender Equality at Brown University, 1974-1977

    Science.gov (United States)

    Porwancher, Andrew

    2013-01-01

    In 1974, Brown University's Department of Anthropology denied tenure to assistant professor Louise Lamphere. Convinced that her dismissal was the product of sex discrimination, Lamphere filed suit against Brown. Lamphere and three other female scholars who joined her suit successfully pressed Brown into an out-of-court settlement in 1977.…

  5. Glasbena terapija pri otrocih in mladostnikih z motnjami vedenja in osebnosti

    OpenAIRE

    Pepelnak-Arnerić, Marija

    2015-01-01

    People have many definitions of music. It was used systematically since prehistoric times. Music was applied systematically in curative and preventative use. The use of music in caring for people with developmental disabilities has a long tradition too. Music can often be an effective tool for establishing inirial contact with behaviour disordered or emotionally disturbed children or adolescent. The process of developing effective music therapy treatment plans includes five major steps. Many ...

  6. Novi pristopi pri proučevanju prsti v pokrajini = New approaches in Slovenian soil geography

    Directory of Open Access Journals (Sweden)

    Blaž Repe

    2006-01-01

    Full Text Available In Slovenia, soil research of a given landscape is often neglected in physical geography studies. Despite the fact of an equivalent position of soil geography within the science system of Slovene geography. Reasons can be found in time consuming fi eld research, expensive laboratory analysis and soil data and also the lack of its own methodology. The drawbacks could be partially replaced by different approaches of research and especially to establish links with other physical elements of the environment. The use of easily accessible digital and cartographic data, basic field techniques, in combination with simple GIS tools and quantitative methods overcomes many of the financial or time constraints.

  7. P.A. Mbenzi and D.N. Iithete. English-Oshindonga Dictionary for Pri-

    African Journals Online (AJOL)

    The front matter of the dictionary consists of a preface and three paragraphs on how to use ... understanding of other subjects such as History, Science, Geography, etc." An .... mar description, assist the user in providing clues as to the existing differences ... "He uses chalk to write on the blackboard", while the accompanying.

  8. Spatial soil moisture mapping through multi-temporal analysis of ERS-SAR pri data

    OpenAIRE

    Verhoest, N.; Troch, P. A.; Deckmyn, J.; Paniconi, C.; De Troch, François

    1997-01-01

    La dispersión de microondas de suelo depende de varias características de superficie, como la rugosidad, la vegetación y el contenido de humedad de la capa superior. El conocimiento de la distribución temporal y espacial de este último parámetro es de gran importancia para hidrológico, meteorológico y climatológico de modelado. Sin embargo las mediciones precisas de la distribución espacial de la humedad del suelo con métodos clásicos siempre han sido una tarea difícil. Debido a su dependenci...

  9. DOLŽNOSTI POSAMEZNIKA PRI URESNIČEVANJU PRAVIC V ZDRAVSTVU - PACIENT V ZOBOZDRAVSTVU

    OpenAIRE

    Bajec, Milena

    2010-01-01

    Pravice in dolžnosti posameznika kot pacienta, obravnavane v medicini in v pravu, imajo skupno točko. Obe področji, tako medicina kot pravo, obravnavata in proučujeta posameznika kot celoto, kot subjekt in objekt delovanja. Po drugi strani razvoj pacientovih pravic v zadnjem času na obeh področjih znanosti počasi, a intenzivno prehaja iz obravnavanja pacienta pretežno kot objekta v subjekt delovanja v procesu izboljšanja ali povrnitve zdravja. V vnemi po priznanju in uresničevanju pacientove ...

  10. Student Scientific Conference PriF UK 2012. Proceedings of reviewed contributions

    International Nuclear Information System (INIS)

    Galambos, M.; Dzugasova, V.

    2012-01-01

    The conference included the following sections: (i) Biology (139 contributions); (ii) Chemistry (48 contributions); (iii) Geology (31 contributions); (iv) Geography (38 contributions); (v) Didactics (11 contributions); (vi) Environmental Science (25 contributions);) Contributions relevant of INIS interest have been inputted to INIS.

  11. Effects of Monoenergetic Neutron Radiation on Human Cells in Tissue Culture; Effets des Neutrons Monoenergetiques sur des Cellules de Tissus Humains en Culture; Dejstvie oblucheniya monoehnergeticheskimi nejtronami na kletki kul'tury tkanej cheloveka; Efectos de la Radiacion Neutronica Monoenergetica sobre las Celulas Humanas en Cultivos de Tejidos

    Energy Technology Data Exchange (ETDEWEB)

    Broerse, J. J.; Barendsen, G. W. [Radiobiological Institute of the Organization for Health Research TNO, Rijswijk (Z.H.) (Netherlands)

    1964-03-15

    sharikov, pomeshhennyh sootvetstvenno mezhdu chashkami i trubkami. R a sche t dozy nejtronnogo potoka predstavljal rjad problem, kotorye obsuzhdajutsja. Poskol'ku ne sushhestvuet ravnomernogo obluchenija kletok, izuchajutsja rezul'tirujushhie netochnosti pri opredelenijah dozy. Privodjatsja krivye zavisimosti vyzhivanija ot dozy dlja oboih tipov nejtronov. Dlja nejtronov s jenergiej 3 Mjev otnositel'naja biologicheskaja jeffektivnost' sostavljala ot 6,5 pri malyh dozah do primerno 3,1 pri vysokih d o zah , v to vremja kak dlja nejtronov s jenergiej 15 Mjev velichiny OBJe ko lebalas' ot 1,9 do 1,6. Putem sravnenija jetih velichin OBJe s s o otnosheniem O B Je-LP Je , poluchennym v predydushhih jeksperimentah s dejtronami i al'f a - chasticami, mozhno opredelit' jeffektivnoe LPJe dlja nejtronov, ispol'zovannyh v jeksperimente. Dlja reshenija nekotoryh problem, svjazannyh so smert'ju jeksperimental'nyh zhivotnyh posle rentgenovskogo ili nejtronnogo obluchenija, byl razrabotan metod, s pomoshh'ju kotorogo kletki, soderzhashhiesja v nebol'shih trubkah, ispol'zujutsja dlja izmerenija jeffektivnoj dozy (t.e. dozy, dlja kotoroj vneseny popravki na OBJe) v uchastkah fantomov ili t el zhivotnyh, predstavljajushhih interes. (author)

  12. The Radioisotopic Determination of Diffusion Coefficients and Currents in Natural Waters. Surface Collection of Radioactive Fall-Out on a Large Alpine Lake; Determination par detection nucleaire des coefficients de diffusion et des courants dans les eaux naturelles. Evolution de la surface de collection d'un grand lac alpin pour les retombees radioactives; Opredelenie koehffitsienta diffuzii i skorosti techeniya estestvennykh vod pri pomoshchi yadernogo detektirovaniya. Ehvolyutsiya poverkhnosti sbora radioaktivnykh osadkov na bol'shom al'pijskom ozere; Determinacion por deteccion nuclear de los coeficientes de difusion y de las corrientes en las aguas naturales evolucion de la superficie de captacion de un gran lago alpino para las precipitaciones radiactivas

    Energy Technology Data Exchange (ETDEWEB)

    Chesselet, R.; Nordemann, D. [Service d' Electronique Physique, Centre d' Etudes Nucleaires de Saclay (France); Dussart, B. [Centre de Recherches Hydrobiologiques, CNRS, Gif-sur-Yvette (France)

    1963-08-15

    radioaktivnykh produktov v usloviyakh diffuzii i vstrechnykh potokov. Ispol'zovanie diffuzii radioaktivnykh produktov v ochen' nebol'shikh kolichestvakh i razlichnye metody obnaruzheniya pri pomoshchi yadernykh izmerenij vysokoj chuvstvitel'nosti mogut privesti v nastoyashchee vremya k nailuchshemu ponimaniyu diffuzii Tin situ'' i dvizheniyu mass prirodnykh vod. (author)

  13. The Determination of Sub-Microgram Quantities, of Amino Acids with H{sup 3}- and C{sup 1}4-Labelled 1-Fluoro-2.4 Dinitrobenzene; Determination d'acides amines en quantites inferieures au microgramme a l'aide de 1-fluoro-2,4-dinitrobenzen e marque au {sup 3}H et au {sup 14}C; Podschet submikrogrammnykh kolichestv aminokislot pri pomoshchi 2 : 4 dinitroftor'enzola, mechennogo H{sup 3} i C{sup 14}; Determinacion de cantidades de aminoacidos inferiores al microgramo por medio de 1-fluoro-2,4-dinitrobenceno marcado con {sup 3}H y {sup 14}C

    Energy Technology Data Exchange (ETDEWEB)

    Beale, D; Whitehead, J K [Middlesex Hospital Medical School, London (United Kingdom)

    1962-01-15

    satisfactoriament con los valores que suministra el analisis por derivacion empleando anhidrido acetico marcado con {sup 3}H y con {sup 14}C, y con los que se obtienen mediante cromatografia de intercambio ionico. (author) [Russian] Opisyvaetsya metod izotopnogo derivatsionnogo analiza dlya opredeleniya aminokislot pri nizkom urovne v 10{sup -5} mikro-mol' v gidrolizatakh proteina. 2:4 djnitroftorbenzola-H{sup 3} (G) byl sintezirovan iz ' brombenzola-H{sup 3}(G) i 2 : 4 dinitroftorbenzola-C{sup 14}(G), kotoryj byl poluchen iz khlorbenzola-C{sup 14}(G). Metod analiza vklyuchaet obrabotku smesi amino-kislot tritirovannym reaktivom (udel'naya aktivnost' 12.8 mikro kyuri/mikro ehkvijalent) v shchelochnoj rastvore, k kotoromu prisoedinyaetsya primes' s izvestnoj aktivnost' (6000 raspadov v minutu) proizvodnykh 2 : 4 dinitrofenila , mechennogo S14. Posle rastvoryayushchej ehkstraktsii smeshannaya reaktsiya vydelyaet iz svoego sostava proizvodnye dinitrofinila dvumya putyami khromatografii na bumage i soderzhanie H''3 i C''1''4 kazhdoj kapli opredelyaetsya szhiganiem i gazovym podschetom. Podschet H''3 daet kolichestvo, ravnoe proizvodnoj DNK iz aminokisloty, otdelennoj ot osnovnoj smesi, a schet C''1''4 ukazyvaet na velichinu poter', poluchivshikhsya vo vremya analiza. Itogi, poluchennye v rezul'tate analiza 1 mikrogramma gidrolizovannogo insulina polnost'yu soglasuyutsya s velichinami, poluchennymi v rezul'tate derivatsionnogo analiza s ispol'zovaniem uksusnogo angidrida, mechennogo H{sup 3} i C{sup 14} i s pomoshch'yu khromotografii ionnogo obmena smol. (author)

  14. Lens Opacification in Mice Exposed to Monoenergetic Fast Neutrons; Opacite du Cristallin chez la Souris Exposee aux Neutrons Rapides; Katarakty u myshej, obluchennykh monoehnergeticheskimi bystrymi nejtronami; Opacidad del Cristalino en los Ratones Expuestos a los Neutrones Rapidos Monoenergeticos

    Energy Technology Data Exchange (ETDEWEB)

    Bateman, J. L.; Bond, V. P.; Rossi, H. H. [Medical Research Center, Brookhaven National Laboratory, Upton, NY (United States); Radiological Research Laboratory, Department of Radiology, Columbia University, New York, NY (United States)

    1964-05-15

    neutrones en los estudios precitados es aproximadamente proporcional a la TLE calculada (promedio de energia). Los autores estan valorando el efecto secundario de induccion de cataratas en funcion de la energia neutronica, y los resultados revelan que la energia de 0,43MeV es mas efectiva que la de 1,80 MeV. Un procedimiento perfeccionado en el que se emplea una lampara de rendija ha permitido descubrir anticipadamente zonas opacas con dosis de radiacion relativamente reducidas. Los autores han estudiado los mecanismos de restablecimiento en diversos sistemas celulares con neutrones rapidos monoenergeticos y con rayos X o rayos gamma. Estan examinando actualmente las lesiones del cromosoma, que se manifiestan por la frecuencia de anafases anormales en la regeneracion del higado tres meses despues de la irradiacion, en ratones expuestos a la accion de los rayos gamma con intensidades de dosis comprendidas entre 0,2 y 100 rad/min. (author) [Russian] Issledovanija reakcii na izluchenija s nizkoj linejnoj peredachej jenergii (LPJe), kak rentgenovy ili gamma-luchi, shiroko provodjatsja na melkih zhivotnyh ot subkletochnogo urovnja do urovnja celogo zhivotnogo. Men'shee kolichestvo issledovanij provoditsja s izluchenijami s vysokoj LPJe, kak bystrye nejtrony. Bol'shinstvo jetih issledovanij vkljuchaet obluchenie nejtronami s razlichnoj jenergiej i, sledovatel'no, razlichnoj LPJe. Nekotorye reakcii mezhdu puchkom zarjazhennyh chastic i mishen'ju privodjat k obrazovaniju nejtronov s jenergijami, tesno zavisjashhimi ot ugla mezhdu traektoriej izluchenija i os'ju mishen'-puchok- Odna iz nih, reakcija protonov s tritievoj mishen'ju, ispol'zovalas' dlja nekotoryh issledovanij v dannoj laboratorii. Issledovanija s opredeleniem umen'shenija vesa slezenki i zobnoj zhelezy u myshej pozvolili najti velichinyOBJe, kotorye pri sravnenii s rentgenovskimi luchami 250 kv, generiruemymi v intervale pikovyh jenergij, ravnjalis' primerno chetyrem pri jenergii nejtronov 0,43 Mjev i snizhalis' do

  15. The Scattering of Slow Neutrons from Hydrogen and Ethylene; Diffusion des neutrons lents par l'hydrogene et par l'ethylene; O rasseyanii medlennykh nejtronov vodorodom i ehtilenom; Dispersion de neutrones lentos por hidrogeno y etileno

    Energy Technology Data Exchange (ETDEWEB)

    Bally, D; Tarina, V; Todireanu, S [Institute of Atomic Physics, Bucharest (Romania)

    1963-01-15

    The angular distribution of 1.61 A wavelength neutrons scattered from hydrogen and ethylene has been measured. For ethylene the pressure was varied from 15 to 60 atm and for hydrogen from 60 to 110 atm. The investigated angular range was between 5''o and 90{sup o}. The experimental results obtained have been compared with the differential cross-section calculated using the Krieger-Nelkin formulae. (author) [French] Les auteurs ont mesure la distribution angulaire des neutrons ayant une longueur d'onde de 1,61 A diffuses par de l'hydrogene et par l'ethylene. Ils ont fait varier la pression de l'ethylene de 15 a 60 atm et celle de l'hydrogene de 60 a 110 atm. Le domaine angulaire etudie etait compris entre 5{sup o} et 90{sup o}. Les resultats des experiences ont ete compares aux sections efficaces differentielles calculees au moyen des formules de Krieger-Nelkin. (author) [Spanish] Los autores han medido la distribucion angular de neutrones de longitud de onda igual a 1,61 A, despersados por hidrogeno y etileno. En el caso del etileno, la presion vario de 15 a 60 atm y en el del higrogeno, de 60 a 110 atm. Los autores han explorado angulos comprendidos entre 5{sup o} y 90{sup o}. comparan los resultados experimentales obtenidos con el valor de la seccion eficaz diferencial calculado con ayuda de las formulas de Kriger-Nelkin. (author)

  16. Frequency Spectrum of Liquids and Cold Neutron Scattering; Spectre de frequences des liquides et diffusion de neutrons froids; Chastotnyj spektr zhidkostej i rasseyanie kholodnykh nejtronov; Espectro de frecuencias de los liquidos y dispersion de neutrones frios

    Energy Technology Data Exchange (ETDEWEB)

    Singwi, K S; Sjolander, A; Rahman, A [Argonne National Laboratory, Argonne, IL (United States)

    1963-01-15

    An important question which arises in connection with slow neutron scattering by liquids is: does there exist a frequency spectrum tor liquids analogous to that in solids? The answer to this question is given by showing that the width function {gamma}(t) of the Gaussian space-time self-correlation function G{sub s}(r,t) can be expressed, by using the frequency spectrum of the velocity auto-correlation function, in a form which is formally identical with that of a harmonic solid. Thus a knowledge of the frequency spectrum of the velocity auto-correlation function should enable one to calculate slow neutron scattering by liquids as has been emphasized by Egelstaff and co-workers. Using a stochastic model of a liquid, the frequency spectrum f({omega}) of the velocity auto-correlation function is calculated for water at 300{sup o}K and for liquid lead at 620{sup o}K. In the case of water a maximum in f({omega}) corresponding to {Dirac_h} 75{sup o}K is predicted. For lead the maximum also occurs at nearly the same {omega}-value. There also occurs a minimum in f({omega})in both cases. Larsson and Dahlborg have observed a maximum in f({omega}) at the above predicted {omega}-value. A recent observation in liquid lead of Cotter et al. probably confirms our prediction too. (author) [French] Dans le domaine de la diffusion des neutrons lents par des liquides une question importante se pose: existe-t-il un spectre de frequences pour les liquides analogue au spectre pour les solides? On peut repondre d cette quesnon en montrant que la fonction de largeur {gamma}(t) de la fonction gaussienne spatio-temporelle d'auto-correlation G{sub s}(r,t) peut etre exprimee, en employant le spectre de frequences de la fonction d'auto-correlation des vitesses, sous uune forme qui presente le membe aspect formel que celle d'un solide harmonique. par consequent, la connaissance du spectre de frequences de la fonction d'auto-correlation des vitesses devrait permettre de calculer la diffusion des neutrons lents par les liquides comme l'ont souligne Egelstaff et ses colllaborateurs. Les auteurs calculent, a l'aide d'un modele stochastique, le spectre des frequences f({omega}) de la fonction d'auto-correlation des vitesses dans l'eau a 300{sup o}K et dans le plomb liquide a 620{sup o}K. Dans le cas de l'eau ils prevoient un maximum de la fonction f({omega}) correspondant a {Dirac_h} {omega}75{sup o}K. Dans le plomb, le maximum se manifeste a une valeur a peu pres analogue. II existe aussi un minimum de la fonction f({omega}) dans les deux cas. Larsson et Dahlborg ont observe un maximum de la fonction f({omega}) a la valeur d'{omega} prevue ci-dessus. Des observations faites recemment dans du plomb liquide par Cotter et al. confirment vraisemblablement les previsions des auteurs. (author) [Spanish] Una cuestion importante que se plantea respecto de la dispersion de neeutrones lentos por los liquidos es la siguiente: Existe un espectro de frecuencia de los liquidos analogo al de los solidos? para contestar a esta pregunta, basta demostrar que la funcion de amplitud {gamma}(t) de la funcion gaussiana de autocorrelacion espacio G{sup s}(r,t) puede expresarse, utilizando el espectro de frecuencias de la funcion de autocorreclation de velocidad, en form identica a la correspondiente a un solido armonico. Es decir, si se conoce el especro de frecuencias de la funcion de autocorrelacion de velocidad, se debe poder calcular la dispersion de neutrones lentos por los liquidos, como han senalado Egelstaff y colaboradores. Los autores calculan, utilizando un modelo estocastico de liquido, el espectro de frecuencia f({omega}) de la funcion de autocorrelacion de velocidad, en el caso del agua a 300{sup o}K y del plomo liquido a 620{sup o}K. Predicen para la primera un maximo de f({omega}) correspondiente a {Dirac_h}{omega} 75{sup o}K. Enel caso del plomo, el maximo se presenta tambien para el mismo valor de oj, aproximadamente. Ademas, en ambos casos f({omega})pasa por un minimo. Larsson y Dahlborg han observado un maximo de f({omega}) para el valor de {omega} previsto por los autores. Al parecer una comprobacion recientemente efectuada por Cotter y colaboradores en el caso del plomo liquido tambien confirma la prevision de los autores acerca de este metal. (author)

  17. A Cold Neutron Monochromator and Scattering Apparatus; Monochromateur et appareillage pour la diffusion de neutrons lents; Monokhromator dlya ''kholodnykh'' nejtronov i pribor dlya rasseyaniya; Monocromador y aparato de dispersion para neutrones frios

    Energy Technology Data Exchange (ETDEWEB)

    Harris, D; Cocking, S J; Egelstaff, P A; Webb, F J [Nuclear Physics Division, Aere, Harwell, Didcot, Berks (United Kingdom)

    1963-01-15

    A narrow band of neutron wavelengths (4 A and greater) is selected from a collimated neutron beam obtained from the Dido reactor at Harwell. These neutrqps are scattered by various samples and the energy transfer of the scattered neutrons measured using time-of-flight techniques. The neutrons, moderated by a liquid hydrogen source in the reactor pass through first a liquid nitrogen- cooled filter, then a single crystal of bismuth and finally they are ''chopped'' by a magnesium-cadmium high- speed curved slot rotor. In this apparatus the wavelength spread of 0. 3 A at 4 . 1 A is determined primarily by the Be-Bi filter, while the time spread (8 {mu}s) is determined by the rotor. The monochromated neutron bursts from this rotor are scattered by a sample and detected in one of two counter arrays. When studying liquid or polycrystalline samples an array of six BF{sub 3}, counter assemblies (each 2 inches x 24 inches in area)are used covering scatter angles from 20{sup o} to 90{sup o}. This array is placed below the neutron beam. Above the line of the neutron beam is a second array consisting of three scintillators 2 inches in diameter, which is used for the study of single crystal samples. The output of each counter is fed into a tape recording system which has 500 time channels available for each counter. This apparatus has been used to study neutron scattering from several gaseous, liquid and crystalline samples and the most recent measurements are presented in other papers in these proceedings. [French] Les auteurs extraient une bande etroite de neutrons ( 4 A et plus) d'un faisceau collimate de neutrons produits par le reacteur Dido de Harwell. On fait diffuser ces neutrons au moyen de divers echantillons et on mesure le transfert d'energie des neutrons diffuses par la methode du temps de vol. Les neutrons ralentis par de l'hydrogene liquide place dans le reacteur passent d'abord dans un filtre refroidi a l'azote liquide, puis dans un monocristal de bismuth. Finalement, un rotor a rainures courbes en magnesium et cadmium, ayant une vitesse de rotation elevee, les laisse passer par bouffees. Dans cet appareil, le filtre Be-Bi sert a determiner la dispersion de la longueur d'onde (comprise entre 0,3 A et 4,1 A) et le rotor, la dispersion en fonction du temps (8 {mu}s). Les bouffees de neutrons monochromatiques provenant du rotor sont diffusees par un echantillon et detectees dans l'une de deux series de compteurs. Lorsqu'on etudie des echantillons liquides ou polycristallins, on emploie une serie de compteurs BF{sub 3} (dimensions: 2 x 2 4 pouces) couvrant des angles de diffusion variant de 20{sup o} a 90{sup o}. Cette serie est placee en-dessous du faisceau de neutrons. Au-dessus de l'axe du faisceau neutronique se trouve la deuxieme serie comprenant trois scintillateurs (diametre 2 pouces) pour etudier des echantillons de monocristaux. Chaque compteur agit sur un systeme d'enregistrement a bande magnetique qui comporte 500 canaux utilisables pour chacun des compteurs. Les auteurs se sont servis de cet appareil pour etudier la diffusion des neutrons dans plusieurs echantillons gazeux, liquides et cristallins. Dans d'autres memoires presentes au Colloque ils donnent les resultats des dernieres mesures faites. (author) [Spanish] De un haz colimado de neutrones, emitido por el reactor Dido de Harwell, se selecciona una estrecha banda de longitudes de onda neutronicas (4 A y mayores). Estos neutrones son dispersados por varias muestras y la energia por ellos cedida se mide segun el metodo del tiempo de vuelo. Los neutrones, moderados por una fuente de hidrogeno liquido situada en el reactor, atraviesan primero un filtro refrigerado por nitrogeno liquido, seguidamente un monocristal de bismuto, siendo, por ultimo ''interceptados'' por un rotor de ranura curva, de magnesio-cadmio animado de gran velocidad. En este aparato el ensanchamiento de longitud de onda (0, 3A a 4,1 A) queda principalmente determinado por el filtro de Be-Bi, y el de tiempo (8 {mu}s), por el rotor. Las rafagas de neutrales monocromaticos provenientes del rotor son dispersadas por una muestra y detectadas en uno de dos dispositivos de recuento. Cuando se estudian muestras liquidas o policristalinas, se utiliza un dispositivo de seis contadores (de BF{sub 3} de superficie unitaria) de 2 pulgadas por 24 pulgadas para angulos, de dispersion comprendidos entre 20{sup o} y 90{sup o}. Este dispositivo se coloca debajo del haz neutronico. Por encima del eje del haz, se instala otro dispositivo integrado por tres centelleadores de 2 pulgadas de diametro, que se utiliza para estudiar muestras monocristalinas. Las senales emitidas por cada contador se transmiten a un grabador de cinta que dispone de 500 canales de tiempo para cada contador. El aparato se ha utilizado para estudiar la dispersion de neutrones por varias muestras gaseosas, liquidas y cristalinas. Las mediciones masrecientesse exponen en otras memorias presentadas al Simposio. (author)

  18. Installation for Studying the Scattering of Cold Neutrons; Installation pour l'etude de la diffusion des neutrons thermiques; Ustanovka dlya izucheniya rasseyaniya kholodnykh nejtronov; Instalacion para estudiar la dispersion de neutrones frios

    Energy Technology Data Exchange (ETDEWEB)

    Golikov, V V; Shapiro, F L; Shkatula, A; Yanik, E A [Ob' edinennyj institut yadernykh issledovanij, Dubna, Union of Soviet Socialist Republics (Russian Federation)

    1963-01-15

    Using the pulsed fut reactor in the Joint Institute for Nuclear Research, an installation was set up to investigate the spectrometry of cold neutrons. The moderator, adjoining the reactor reflector, and the beryllium filter were at the temperature of liquid nitrogen. The scatterer, located at a distance of about 0. 6 m from the moderator, was irradiated by flashes of cold neutrons, whose duration was determined by the lifetime of the neutrons in the moderator and the dispersion of the times-of-flight over a distance of 0. 6 m. The frequency of the flashes was 8/s. The steep beryllium edge of the spectrum, lying around 200 {mu}s, was used for spectrometry in the quasi-elastic range. The energy of the scattered neutrons was determined by the time-of-flight over the distance between scatterer and detector, which was about 10-40 m. ZnS + 10{sub 2}{sup 10} O{sub 3} scintillation detectors with surfaces of 300 and 2 000 cm{sup 2} were used and the efficiency, for fast neutrons, was about 60%. (author) [French] A l'aide du reacteur a flux pulse de neutrons rapides de l'Institut unifie de recherches nucleaires, les auteurs ont mis au point une installation pour la spectrometrie des neutrons thermiques. Le ralentisseur contigu au reflecteur du reacteur et le filtre deberyllium sont maintenus a la temperature de l'azote liquide. Le diffuseur, place a environ 60 cm du ralentisseur, est irradie par une bouffee de neutrons thermiques dont la duree est determinee par la vie moyenne des neutrons dans le ralentisseur et par l'etalement des temps de vol necessaires pour parcourir la distance de 60 cm. La frequence des bouffees est de 8/s. Pour la spectrometrie dans la region quasi-elastique, on utilise la bande en bordure du spectre qui correspond au beryllium et s'etale sur environ 200 {mu}s. L'energie des neutrons diffuses est determinee par la duree du parcours entre le diffuseur et le detecteur. Les auteurs ont utilise des detecteurs a scintillation a ZnS + 10{sub 2}{sup 10} O{sup 3} ayant des surfaces de 300 et 2 000 cm{sup 2} et dont l'efficacite a l'egard des neutrons thermique: est d'environ 60%. (author) [Spanish] En el reactor rapido pulsante del Instituto Central de Investigaciones Nucleares se instalo un espectrometro para neutrones frios. El moderador, contiguo al reflector del reactor, y el filtro de berilio se mantienen a la temperatura del nitrogeno liquido. El difusor, situado a unos 0,6 m del moderador, se irradia con rafagas de neutrones frios, cuya duracion se determina em funcion de la vida de los neutrones en el moderador y de la dispersion de los tiempos de vuelo en una distancia de 0,6 m. La frecuencia de las rafagas es de 8 por segundo. Para la espectrometria en la region cuasielastica, se utiliza la variacion brusca del espectro del berilio, que es de unos 200 {mu}s. La enetgia de los neutrones dispersados se determina por el tiempo de vuelo en la distancia que media entre el difusor y el detector, a saber, 10 a 40 m. Los autores utilizan detectores de centelleo a base de ZnS + 10{sub 2}{sup 10} O{sub 3} de una superficie comprendida entre 300 y 2000 cm{sup 2}, y cuya eficacia respecto de los neutrones termicos, es del orden de 60%. (author)

  19. Scintillation Counters for Neutron Scattering Experiments; Compteurs a scintillations pour les experiences de diffusion neutronique; Stsintillyatsionnye schetchiki dlya ehksperimentov s rasseyaniem nejtronov; Contadores de centelleo para experimentos de dispersion neutronica.

    Energy Technology Data Exchange (ETDEWEB)

    Harris, D; Duffil, C [Atomic Energy of Canada Ltd., Chalk River, Ontario (Canada); Wraight, L A [Aere, Harwell, Didcot, Berks (United Kingdom)

    1963-01-15

    Scintillation counters discussed in this paper are of two types : (i) UP or B{sub 2}O{sub 3} fixed with zinc sulphide in varving composition, (ii) Li containing glasses of varying composition. The ideal composition of each rype for neutron scattering experiments and their relative sensitivity tae neutrons and {gamma}-rays are considered. The ZnS type can be used with a {gamma}-ray pulse shape discriminator and practical experience of its use in a multi-counter time-of-flight experiment is described. The Li glass has higher {gamma}-background but also higher neutron efficiency. Performance figures of a scintillator containing 25% by wt. Li{sub 2}O and 1 mm thick will be given. (author) [French] Les compteurs a scintillations etudies sont de deux types : i) LiF ou B{sub 2}O{sub 3} fixe par du sulfure de zinc en composition variable, ii) verres contenant du lithium en composition variable. Les auteurs examinent la composition ideale de chaque type de compteur pour les experiences de diffusion de neutrons, ainsi que leur sinsibilite rrelative aux neutrons et aux rayons gamma. On peut utiliser le compteur a ZnS avec un discriminates de forme pour rayons gamma; les auteurs decrivent l'experience qu'ils ont de son emploi dans une experience de temps de vol a plusieurs compteurs. Le compteur verre-Li a un mouvement propre plus eleve pour les rayons gamma mais une meilleure efficacite vis-a-vis des neutrons. Les auteurs donnent quelques chiffres concernant le fonctionnement d'un scintillateur contenant 25% en poids de Li{sub 2}O et ayant une epaisseur de un millimetre. (author) [Spanish] Los contadores de centelleo examinados en esta memoria son de dos tipos : a) de LiF o B{sub 2}O{sub 3} mezclado con sulfuro de cinc en proporciones variables; b) de vidrios litiados de diversas composiciones. Los autores estudian la composicion ideal de cada tipo para experimentos de dispersion neutronica, asi como su sensibilidad relativa a los neutrones y a los rayos gamma. El tio de ZnS puede utilizarse con un discriminador de amplitude de impulsos para rayos gamma; los autores describen la experiencia adquirida con su empleo en un experimento de tiempo de vuelo realizado con varios contradores. El vidrio litiado presenta una actividad de fondo mas elevada para los rayos gamma, pero tambien una mayor eficiencia en el registro de neutrones. En la memoria figuran cifras relativas al rendimiento de un centelleador de 1 mm de espesor, que contiene 25% en peso de litio. (author)

  20. Problems Associated with the Monochromatisation of Slow Neutrons; Quelques aspects de la monochromatisation des neutrons thermiques; Nekotorye voprosy monokhromatizatsii medlennykh nejtronov; Algunos problemas de la monocromatizacion de neutrones lentos

    Energy Technology Data Exchange (ETDEWEB)

    Vertebnyj, V P; Kolotyj, V V; Majstrenko, A N

    1963-01-15

    The paper sets out the result of calculations to determine the shape of the spectral line of twin-rotor, pulsing, slow-neutron monochromators, as a function of the shifts in the phases between the rotors. Consideration is also given to die possibility of using certain light elements as slow-neutron filters. (author) [French] Les auteurs exposent les resultats de leurs calculs relatifs a la forme du spectre des monochromateurs a impulsions et a deux rotors pour neutrons thermiques en fonction de la distance et du dephasage entre les rotors. Ils examinent egalement la possibilite d*utiliser certains elements legers comme filtres a neutrons lents. (author) [Spanish] Los autores exponen ios resultadas de sus calculos relativos a la forma de la linea espectral de los monocromadores pulsantes de dos rotores para neutrones lentos en funcion de la distancia y del desias amiento de los rotores. Examinan asimismo la posibilidad de utilizar algunos elementos ligeros como filtros de neutrones lentos. (author)

  1. The Scattering Law for Room Temperature Light Water; Loi de diffusion dans l'eau legere a la temperature ambiante; Zakon rasseyaniya nejtronov legkoj vodoj komnatnoj temperatury; Ley de dispersion del agua ligera a temperatura ambiente

    Energy Technology Data Exchange (ETDEWEB)

    Kottwitz, D A; Leonard, Jr, B R [Hanford Laboratories, General Electric Company, Richland, WA (United States)

    1963-01-15

    The Hanford triple-axis crystal spectrometer has been used to measure the Egelstaff scattering law for light water at 22{sup o}C for neutron wave vector changes up to 14A{sup -1} and energy transfers in the range 0.05 to 0.25 eV. The values of initial neutron energy were 0.15, 0.20, 0.30, and 0.40 eV, and scattering angles ranged from 4{sup o}to 72{sup o}. Scattering by a vanadium sample at 77{sup o}K served to establish the spectrometer resolution and efficiency functions. The scattering law S({alpha},{beta}) and the generalized frequency distribution p({beta}) derived from it are in substantial agreement in the overlap region with results obtained by Haywood and Thorson at Chalk River. The function p(6) has been extended to {beta} {approx} 10 to include the region occupied by the lowest molecular vibration level near {beta}= 8 . In this region the measured p({beta}) has a low sloping plateau, indicating that the vibrational peak has been smeared out by broad instrumental resolution. The normalization integral of the measured p({beta}) is higher than its theoretical value. (author) [French] Les auteurs ont employe le spectrometre a cristal triaxial de Hanford pour mesurer la loi de diffusion d'Egelstaff dans l'eau legere a la temperature de 22{sup o}, pour un vecteur d'ondes neutroniques pouvant atteindre 14A''-''1 et pour des transferts d'energie compris entre 0,05 et 0,25 eV. L'energie neutronique initiale etait de 0,15, 0,20, 0,30 et 0,40 eV et lesjtngles de diffusion etaieni compris entre 4{sup o} et 72{sup o} La diffusion par un echantillon de vanadium a 77{sup o}K a permis d'etablir la resolution du spectrometre ainsi que les fonctions d'efficacite. La loi de diffusion S({alpha},{beta}) et la distribution des frequences generalisee p(6) qui en derive concordent bien dans la region de recouvrement avec les resultats obtenus par Haywood et Thorson, a Chalk River. La fonction p({beta}) a ete etendue a {beta} {approx} 10 de maniere a englober la region occupee par le plus bas niveau de vibrations moleculaires, qui se trouve dans le voisinage de {beta} = 8. Dans cette region, la distribution p({beta}) mesuree comporte un domaine a pente douce, ce qui indique que le pic de vibrations a ete efface a cause de la resolution large des instruments. L'integrale de normalisation de la distribution p({beta}) mesuree est plus elevee que sa valeur theorique. (author) [Spanish] Los autores han utilizado el espectrometro de cristal triaxial de Hanford para determinar la ley de dispersion de Egelstaff en el caso del agua ligera a 22{sup o}C, con variacion del vector de onda neuttonica hasta 14A{sup -1} y transferencias de energia del orden de 0,05 a 0,25 eV. Los valores de la energfa neuttonica inicial fueron 0,15, 0,20, 0,30 y 0,40 eV, y los angulos de dispersion variaron de 4{sup o} a 72{sup o}. La dispersion por una muestra de vanadio a 77{sup o}K (25{sup o}C) ha servido para determinar el poder de resolucion del espectrometro y las funciones de rendimiento. La ley de dispersion S({alpha},{beta}) y la distribucion de frecuencia generalizada p({beta}) derivada de la misma concuerdan esencialmente en la region de superposicion con los resultados obtenidos por Haywood y Thorson en Chalk River. La funcion p({beta}) se ha ampliado hasta {beta} {approx} 10 a fin de incluir la region ocupada por los niveles de vibracion molecular mues bajos, en las proximidades de {beta} = 8. En este intervalo, la distribucion p({beta}) medida presenta un rellano de pendiente poco acusada que indica que los picos de vibracion han sido difuminados por el escaso poder de resolucion del instrumento. La integral de normalizacion de los valores medidos de p({beta}) es superior a su valor teorico.

  2. Pulse-form discrimination in organic scintillation crystals; Discrimination d'apres la forme de l'impulsion dans les cristaux organiques de scintillation; Diskriminatsiya formy impul'sov v organicheskikh stsintillyatsionnykh kristallakh; Discriminacion de la forma de los impulsos en los cristales de compuestos organicos para contadores de centelleo

    Energy Technology Data Exchange (ETDEWEB)

    De Vries, L J; Udo, F [Instituut voor Kernphysisch Onderzoek, Amsterdam (Netherlands)

    1962-04-15

    ) [Spanish] Los autores presentan un circuito de discriminacion proton-electron basado en las diferencias de forma entre los impulsos de centelleo luminosos producidos por los protones y por los electrones, respectivamente, en los cristales de estilbeno. El circuito es estable y es capaz de distinguir los impulsos de protones de los electrones hasta con energias de protones de solamente 300 keV. El circuito discriminador, compuesto unicamente de elementos lineales, es sensible a errores inducidos por apilonamiento durante 0,1 {mu}s solamente, a partir de la llegada de un impulso. El circuito descrito se aplico en un espectrometro para neutrones de 1 a 30 MeV, basado en el retroceso de protones entre dos cristales de estilbeno. Se alcanzo un poder de resolucion de 10 por ciento, para una energia neutronica de 14 MeV, con un rendimiento de deteccion de 1,3 {center_dot} 10{sup -4}. Se podria usar un monitor neutronico basado tambien en un sistema de discriminacion lineal de la forma de los impulsos para medir una dosis neutronica igual al 10% de la dosis maxima admisible, en presencia de un flujo {gamma} cuatro veces mayor que la dosis maxima admisible. (author) [Russian] Opisyvaetsya kontur diskriminatsii protonov-ehlektronov, osnovannyj na raznitse formy stsintillyatsionnykh svetovykh impul'sov, navedennykh v stil'bene sootvetstvenno protonami i ehlektronami. EHtot kontur ustojchiv i otlichaet impul'sy protonov ot impul'sov ehlektronov dazhe pri padenii ehnergii protonov do 300 kehv. Diskriminiruyushchij kontur, sostoyashchij isklyuchitel'no iz linejnykh ehlementov, chuvstvitelen k obrazuyushchimsya iz-za nakopleniya oshibkam tol'ko v techenie 0,1 mikro-sekundy posle postupleniya impul'sa. Opisyvaemyj kontur byl ispol'zovan v spektrometre dlya nejtronov s ehnergiyami 1-30 mehv, osnovannom na otdache protonov mezhdu dvumya kristallami stil'bena. Pri ehnergii nejtronov v 14 mehv bylo polucheno ikh razreshenie s tochnost'yu do 10%, pri ehffektivnosti detektirovaniya v 1,3 x 10

  3. Organization of engineering works in deploying a bridge crossing point made of class 20 pontoon material / Организация инженерных работ при устройстве понтонного моста класса 20 на месте перехода / Organizacija inžinjerijskih radova pri uspostavljanju mosnog mesta prelaska od pontonskog materijala klase 20

    Directory of Open Access Journals (Sweden)

    Nenad V. Kovačević

    2017-10-01

    -мостового батальона, являющегося частью Речной флотилии (объединение - бригада. Описанная в данной статье организация инженерных работ представляет собой целесообразную разработку всех процессов, задействованных в области переправы через водные преграды, в том числе распределение нагрузки на понтеров при устройстве понтонномостовых переправ, грузоподъемностью 20 тонн. Одной из насущных проблем, с которой сталкиваются военные инженеры при оформлении основной документации по устройству ПМП, является отсутствие современной литературы (существующая литература относится к 70-80-ым годам прошлого века, таким образом, разработчики вынуждены опираться исключительно на практический опыт как в оформлении проектной документации, так и в самом процессе производства работ. / Prilikom upotrebe pontonskog materijala za uspostavljanje mosnog i/ili neke druge vrste prelaska preko vodene prepreke (skelskog, desantnog, vrlo je važna organizacija izvođenja radova prilikom pripreme, u toku uspostavljanja, ali i pri dezangažovanju jedinica i pontonskog materijala za uspostavu i održavanje mesta prelaska. Za izvođenje ovih radova u Vojsci Srbije postoje specijalizovane ( namenske jedinice. To su jedinice jedne od specijalnosti u okviru roda inžinjerije , pontonirske specijalnosti, koje egzistiraju u okviru pontonirskih bataljona, odnosno u okviru Re

  4. Photophysical processes of ionic crystals exitation at photosorption and photocatalysis. Fotofizicheskie protsessy vozbuzhdeniya ionnykh kristallov pri fotovozbuzhdenii i fotokatalize

    Energy Technology Data Exchange (ETDEWEB)

    Ryabchuk, V K; Burukina, G V [Leningradskij Gosudarstvennyj Univ., Leningrad (Russian Federation). Nauchno-Issledovatel' skij Fizicheskij Inst.

    1991-06-01

    Processes of photoexcitation of wide-band oxides and alkali-halide crystals (AHC) within intrinsic absorption range, of impurity absorption and surface states and photoinduced colour centers resulting in development of centers of photosorption and photocatalysis are considered. Mechanisms of effect of photosorption of O[sub 2], H[sub 2], CH[sub 4] and other molecules on photostimulated defect formation in oxides and AHC as well as atomic and ionic processes in photosorption and photocatalysis are dicussed.

  5. Izbrani kazalci obremenjenosti okolja pri študijah ranljivosti okolja = Selected environmental pollution indicators in environmental vulnerability studies

    Directory of Open Access Journals (Sweden)

    Dejan Cigale

    2002-01-01

    Full Text Available One of the components of the environmentalvulnerability studies is also the evaluation of the pollution of theenvironment. In the article, the analysis of the selected indicators of theachieved degree of the total and integral pollution is presented. In theframework of the environmental vulnerability studies on the spatial levelof landscape-ecological types for this purpose the following indicatorswere selected: population density, density of working places, trafficintensity and percentage of forests.

  6. Paleolitické osídlenie jaskyne Dzeravá skala pri Plaveckom Mikuláši

    Czech Academy of Sciences Publication Activity Database

    Kaminská, Ľ.; Kozlowski, J. K.; Svoboda, Jiří

    2005-01-01

    Roč. 53, č. 1 (2005), s. 1-26 ISSN 1335-0102 Institutional research plan: CEZ:AV0Z80010507 Keywords : west Slovakia * Middle and Upper Paleolithic, industry * Upper Pleistocene fauna Subject RIV: AC - Archeology, Anthropology, Ethnology

  7. Ecological and economic interests in design process of thermal power plant; Ekoloski i gospodarstveni izazovi pri projektiranju energetskih postrojenja

    Energy Technology Data Exchange (ETDEWEB)

    Sander, M [Elektroprojekt, Zagreb (Croatia)

    1997-12-31

    In design process of thermal power plant various ecological and economic contradictory interests are brought in focus. Requests on environmental protection written in laws, standards and international treaties are increasing investment costs and energy production costs. In a design phase there is a task to reconcile these contradictory requests. The paper presents relationship between technology and environmental protection with a focus on air pollution. Air pollution and human health is considered taking in account the role of design phase in thermal power plants project and human health problems. International laws and standards are presented with moral dilemmas concerning low investment costs and high environmental standards. (author). 6 tabs., 2 figs., 13 refs.

  8. Vloga in pomen ustvarjalnega pisanja pri pouku književnosti v osnovni šoli: doktorska disertacija:

    OpenAIRE

    Blažić, Milena

    2000-01-01

    The thesis presents the meaning and role of creative writing in teaching literature in elementary school. The first theoretical part discusses contemporary cognitive theory in which writing itself is a process as important as the text. Since the traditional conception of writing was centered on the result of the writing process – the text. The cognitive writing model is composed of three parts: 1. task environment; 2.the writers’ long term memory and 3. writing process. In addition two writin...

  9. Limited access to HIV prevention in French prisons (ANRS PRI2DE): implications for public health and drug policy

    OpenAIRE

    Michel, Laurent; Jauffret-Roustide, Marie; Blanche, Jerôme; Maguet, Olivier; Calderon, Christine; Cohen, Julien; Carrieri, Patrizia M

    2011-01-01

    Abstract Background Overpopulation, poor hygiene and disease prevention conditions in prisons are major structural determinants of increased infectious risk within prison settings but evidence-based national and WHO guidelines provide clear indications on how to reduce this risk. We sought to estimate the level of infectious risk by measuring how French prisons adhere to national and WHO guidelines. Methods A nationwide survey targeting the heads of medical (all French prisons) and psychiatri...

  10. Úloha cyklín-dependentnej kinázy 1 pri meiotickom dozrievaní oocytov

    Czech Academy of Sciences Publication Activity Database

    Ferencová, Ivana; Šolc, Petr

    2015-01-01

    Roč. 25, č. 3 (2015), s. 65-67 ISSN 1210-1737 R&D Projects: GA MŠk ED2.1.00/03.0124 Institutional support: RVO:67985904 Keywords : cyclin dependent kinase 1 * meiosis resumption * CDC25 phosphatase Subject RIV: EB - Genetics ; Molecular Biology

  11. Systems of amonium polyborates - monoammonium phosphate -water at 25 deg C. Sistemy poliboraty ammoniya - monoammonijfosfat - voda pri 25 grad S

    Energy Technology Data Exchange (ETDEWEB)

    Skvortsov, V G; Sadetdinov, Sh V; Polenov, A D; Mikhajlov, V I [Chuvashskij Gosudarstvennyj Pedagogicheskij Inst., Cheboksary (Russian Federation)

    1992-11-01

    It is established by solubility and refractometry methods at 25 deg C that systems of ammonium tetraborate (pentaborate) monoammonium phosphate-water refer to sumple eutonic type. The ammonium borates and monoammoniumphosphate exert salting effect over each other. It is found that phosphate borate compositions on the basis of ammonium salts are characterized by lower inhibitor properties as compared to sodium salts.

  12. Uvođenje programa osiguranja kvalitete pri mamografskom pregledu u Kliničkoj bolnici Osijek: prvi rezultati

    OpenAIRE

    Faj, Dario; Ivković, Ana; Štimac, Damir; Posedel, Dario; Kotromanović, Zdenka; Ivezić, Zdravko; Belaj, Nenad; Tomaš, Ilijan; Kubelka, Dragan

    2009-01-01

    Mamografija je najvažnija dijagnostička metoda za rano otkrivanje tumora dojke. Cilj je radiologa imati najbolju moguću dijagnostičku informaciju uz prihvatljivu dozu zračenja za bolesnika. Kakvoća slike i doza zračenja ovisi o velikom broju čimbenika kao što su brzina i kontrast filma, razvijanje filma, napon i automatski nadzor ekspozicije mamografskoga uređaja, te veličina i gustoća dojke. Uz to, uvjeti gledanja slike mogu značajno utjecati na točnost mamografske informacije. S obzirom na ...

  13. Limited access to HIV prevention in French prisons (ANRS PRI2DE: implications for public health and drug policy

    Directory of Open Access Journals (Sweden)

    Blanche Jerôme

    2011-05-01

    Full Text Available Abstract Background Overpopulation, poor hygiene and disease prevention conditions in prisons are major structural determinants of increased infectious risk within prison settings but evidence-based national and WHO guidelines provide clear indications on how to reduce this risk. We sought to estimate the level of infectious risk by measuring how French prisons adhere to national and WHO guidelines. Methods A nationwide survey targeting the heads of medical (all French prisons and psychiatric (26 French prisons units was conducted using a postal questionnaire and a phone interview mainly focusing on access to prevention interventions, i.e. bleach, opioid substitution treatment (OST, HBV vaccination and post-exposure prophylaxis (PEP for French prisoners. Two scores were built reflecting adherence to national and WHO international guidelines, ranging from 0 (no adherence to 10 (maximum adherence and 0 to 9 respectively. Results A majority (N = 113 (66% of the 171 prisons answered the questionnaires, representing 74% coverage (46,786 prisoners of the French prison population: 108 were medical units and 12 were psychiatric units. Inmate access to prevention was poor. The median[IQR] score measuring adherence to national guidelines was quite low (4.5[2.5; 5.5] but adherence to WHO guidelines was even lower 2.5[1.5; 3.5]; PEP was absent despite reported risky practices. Unsuitable OST delivery practices were frequently observed. Conclusions A wide gap exists between HIV prevention policies and their application in prisons. Similar assessments in other countries may be needed to guide a global policy reform in prison settings. Adequate funding together with innovative interventions able to remove structural and ideological barriers to HIV prevention are now needed to motivate those in charge of prison health, to improve their working environment and to relieve French prisoners from their currently debilitating conditions.

  14. Accident analysis of RB reactor dependent on the lattice pitch; Akcidentalna analiza reaktora ''RB'' pri promeni koraka resetke

    Energy Technology Data Exchange (ETDEWEB)

    Lolic, B; Lazarevic, B [Boris Kidric Institute of nuclear sciences, Vinca, Belgrade (Yugoslavia)

    1963-07-01

    This analysis was concerned with reactor core with 52-56 fuel rods, lattice pitch being, 8, 10, 12, 16, 18, and 20 cm. Measured values of excess reactivity above critical level of 3.85 cm, total anti reactivity of regulating rod, reactivity changes caused by pumping heavy water and reactivity variations due to movement of control rod were used. Three types of accidents were analyzed: movement of regulating rod to the position of zero reactivity worths, increase of heavy water level at rate of 2.5 cm/min, combination of two previous accidents.

  15. Report on operation of nuclear facilities in 1991; Porocilo o jedrski varnosti pri obratovanju jedrskih objektov v letu 1991

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1992-06-15

    The Slovenian Nuclear Safety Administration (SNSA) prepared a report on nuclear safety in the republic of Slovenia in 1991 as part of its regular practice of reporting on its work to the Government and the National Assembly of the Republic of Slovenia. The report is divided into three thematic chapters covering the activities of the SNSA, the operation of nuclear facilities in Slovenia, the activity of international missions in Slovenia and the operation of nuclear facilities around the world.

  16. A Multimethod Assessment of Juvenile Psychopathy: Comparing the Predictive Utility of the PCL:YV, YPI, and NEO PRI

    Science.gov (United States)

    Cauffman, Elizabeth; Kimonis, Eva R.; Dmitrieva, Julia; Monahan, Kathryn C.

    2009-01-01

    The current study compares 3 distinct approaches for measuring juvenile psychopathy and their utility for predicting short- and long-term recidivism among a sample of 1,170 serious male juvenile offenders. The assessment approaches compared a clinical interview method (the Psychopathy Checklist: Youth Version [PCL:YV]; Forth, Kosson, & Hare,…

  17. Viga on öelda, et me ei vaja PRi / Roger Hayes, Alasdair Sutherland ; interv. Tiiu Värbu

    Index Scriptorium Estoniae

    Hayes, Roger

    2001-01-01

    Eesti Suhtekorraldajate Liidu 5. aastapäeva seminaril osalevad Rahvusvahelise Kommunikatsiooni Instituudi direktor R. Hayes ja maailma ühe juhtiva suhtekorraldusfirma Manning, Selvage & Lee asepresident A. Sutherland

  18. Vyriausybės sprendimų priėmimo proceso analizė: Lietuvos atvejis

    OpenAIRE

    Marcinkevičius, Gediminas

    2018-01-01

    The relevance of the research. Decision making is the daily routine of politicians and the public sector institutions. The government is one of the main political institutions that takes important decisions at the state level. Nowadays, the decision-making process is becoming more complex and more difficult to manage. The decision-making process is influenced by the rapid development of information technology and the challenges posed by globalization. In such circumstances, a situation arises...

  19. PRI-CAT: a web-tool for the analysis, storage and visualization of plant ChIP-seq experiments.

    NARCIS (Netherlands)

    Muino, J.M.; Hoogstraat, M.; Ham, van R.C.H.J.; Dijk, van A.D.J.

    2011-01-01

    Although several tools for the analysis of ChIP-seq data have been published recently, there is a growing demand, in particular in the plant research community, for computational resources with which such data can be processed, analyzed, stored, visualized and integrated within a single,

  20. PROJECTION OF PENETRATION OF THE BROKER IN HOME BRAZILIAN CAPITAL MARKET THROUGH LINEAR, GOMPERTZ AND FISHER – PRY MODELS

    Directory of Open Access Journals (Sweden)

    Carlos Kawamoto

    2010-09-01

    Full Text Available This paper aims to discuss the theories of internationalization and competitiveness, the positioning of a Brazilian company from agribusiness industry, exporting meat and food that has become a major global player in this industry JBS - Friboi. This company has been internationalized very fast in recent years and become a global leader in beef production, the second to the production of chicken meat and third largest producer of pork in the U.S. (JBS, 2010. The case is emblematic of JBS when analyzed under the concept of Porter's diamond applied to Brazil. This company gained scale and competitiveness with the access to natural resources of prodution (condition factor, but now it is necessary for maintenance its leading position, it requires a strategy grounded in innovation beyond just scale and operational excellence.

  1. Time-resolved fluoroimmunoassay of phytoviruses by monoclonal antibodies. Vremenno-razreshennyj fluoroimmunoanaliz fitovirusos pri pomoshchi monoklonal'nykh antitel

    Energy Technology Data Exchange (ETDEWEB)

    Saarma, M Yu; Yarvekyul' g, L V; Andreeva, E G; Siniyarv, R K

    1989-01-01

    Monoclonal antibodies (MAbs) to potato viruses were labelled with lanthanides and used for time-resolved fluoroimmunoassay (TRFIA) of these viruses. TRFIA of potato leafroll virus (PLRV) had the sensitivity less than 1 ng/ml and was therefore approx 10 times more sensitive than ELISA. Possibility of simultaneous quantitative detection of several viruses by different MAbs labelled with europium, samarium and terbium provides TRFIA of fundamental advantage. Data on simultaneous sensitive detection of two viruses - PLRV and PVX (0,5 ng/ml of both) and three viruses - PLRV, PVX and PVM are given.

  2. Dinamika klyuchevykh mediatorov insulinorezistentnosti u bol'nykh sakharnym diabetom 2 tipa pri primenenii metformina (Formin Pliva?

    Directory of Open Access Journals (Sweden)

    Mikhail Ivanovich Balabolkin

    2004-12-01

    Full Text Available Цель. Изучение влияния формина (метформина не только на состояние углеводного, но и липидного обмена, динамику содержания лептина, его растворимого рецептора и альфа-фактора некроза опухолей (альфа-ФНО в сыворотке крови у больных СД 2. Материалы и методы. Обследовано 262 больных. Общий анализ крови и мочи проводили через каждый месяц наблюдения, а биохимический анализ крови, включая содержание общего ХС, ТГ, ХС ЛПНП и ЛПОНП и ХС ЛПВП, мочевины, креатинина, печеночных ферментов, проводили на 1-м и 4-м визитах. Лечение формином проводилось в течение не менее 12 нед. и изучалось при этом его влияние на состояние углеводного и липидного обмена у больных СД 2. Из общего числа обследованных у 26 больных на фоне терапии формином изучалось содержание лептина, растворимого рецептора к лептину и альфа-ФНО. Результаты. На фоне лечения формином у больных отмечалось улучшение углеводного обмена, которое сопровождалось статистически достоверным снижением гликемии натощак. Компенсация углеводного обмена у больных также сопровождалась статистически достоверным уменьшением индекса мас? сы тела с 34,02+0,33 кг/м2 до 32,73+0,33 кг/м2. У больных на фоне лечения формином наблюдается недостоверное снижение содержания лептина, растворимого рецептора к лептину и статистически достоверное снижение альфа-ФНО в сыворотке крови. Выводы. проведенные исследования показывают, что формин обладает выраженным антигипергликемическим эффектом, способствует улучшению компенсации углеводного обмена, что сопровождается статистически достоверным снижением гликемии и уровня гликозилированного гемоглобина в сыворотке крови. Наряду с этим на фоне терапии формином отмечается снижение уровня холестерина ЛПНП и повышение содержания холестерина ЛПВП, при практически неизмененных показателях содержания общего холестерина в сыворотке крови. Кроме того, лечение формином способствует статистически достоверному снижению содержания альфа-ФНО и умеренному понижению уровня лептина и его растворимого рецептора в сыворотке крови.

  3. Cavourography in children with large and giant omphalocele; Kavaurografiya u detej pri bol'shikh i gigantskikh omfalotsele

    Energy Technology Data Exchange (ETDEWEB)

    Mazur, V G [Sannkt-Peterburgskaya Pediatricheskaya Meditsinskaya Akademiya, Kafedra Luchevoj Diagnostiki i Luchevoj Terapii, S.-Peterburg (Russian Federation)

    1995-12-01

    The paper presents the results of using a cavourographic procedure in 37 children with large and giant omphalocele prior to the radical operation displacement of organs from hernial protrusion into the abdominal cavity. High percentages (54 and 96 %) of changes in the vena cava und urinary tract, respectively, make the author recommend this procedure for all children with this congenital anomaly. The findings help surgeons choose treatment policy and avoid undesirable complications.

  4. Analitična primerjava filmskih žanrov pri spremembi stilističnih elementov medija

    OpenAIRE

    Kompare, Rok

    2017-01-01

    Filmi dandanes predstavljajo velik del zabavne industrije. Ker so ljudje različni, so jim posledično všeč različni filmi, različne filmske zvrsti oziroma filmski žanri. Le te se nanašajo na strukturo stilističnih in narativnih elementov, ki gradijo filmsko formo medija. Kot primeri so: drama, akcija, grozljivka, komedija, znanstvena fantastika itd. Problem, s katerim se srečujejo režiserji je, kako in na kakšen način uprizoriti posamezno zgodbo, s katero tehniko pristopiti, kakšne barve upora...

  5. Ayer, Hoy y Mañana, La Teoría del Prión.

    Directory of Open Access Journals (Sweden)

    Gabriel Toro González

    2004-03-01

    Full Text Available

    (Reproducido con autorización de Acta Neurológica Colombiana Vol. 18 No. 4, 2002.

    Introducción

    La creencia mejor respaldada actualmente nos indica que existe un grupo de enfermedades causadas por anormalidades en el procesamiento de las proteínas. En la década 1950-1960 D. Carleton Gajdusek y Vincent Zigas comenzaron a estudiar en Nueva Guinea una enfermedad fatal del sistema nervioso que se conoce con el nombre de Kuru que estaba diezmando a la tribu Fore, comunidad de unos 12.000 nativos (Figura 1. Gajdusek y Zigas observaron que el Kuru no correspondía a ningún modelo genético conocido y con la colaboración del antropólogo R. Glasse pensaron que el canibalismo ritual practicado por los Fore podría ser la causa de la transmisión de esta enfermedad, lo cual resultó cierto porque el Kuru prácticamente desapareció tras tres décadas de abolidos estos hábitos.

    Desde el primer momento se notó que el Kuru tenía características comunes con el Scrapie y que había semejanza entre estas dos entidades y la enfermedad de Creutzfeldt-Jakob (ECJ, una demencia de progresión rápida, no limitada geográficamente, descrita a principios del siglo XX, las tres aparentemente causadas por infecciones virales lentas con largos períodos de incubación medibles en años y un avance irreversible de los síntomas.

    Este pensamiento, por supuesto, se apoyaba en la afirmación formulada en 1939 por Mc Farlane Burnet de un posible mecanismo de acción lenta o temperada, inicialmente ejemplificada en los virus Herpes y en la propuesta que unos 15 años más tarde hiciera el veterinario islandés B. Sigurdsson de llamar Enfermedades Virales Lentas a las entidades que exhibieran tal comportamiento. Philip Duffy y colaboradores en la Universidad de Columbia, en 1974 comunican la primera observación de transmisión de la demencia de Creutzfeldt –Jakob de humano a humano a través de un injerto de córnea y a esta se sumaron otras posibilidades de transmitir el agente causal, entre ellas electrodos contaminados, hormona de crecimiento, transplante de duramadre. Pese a esta demostración de transmisibilidad la teoría viral desde el comienzo encontró fuerte oposición; lo cual no impidió que la comunidad científica comprendiera el alcance de esta ejemplarizante investigación y concediera por ella a DC Gajdusek el Premio Nobel de Medicina en 1976.

    El punto de partida de este monumental trabajo fue entregado a la comunidad científica desde 1981 en el libro cuya carátula vemos en la Figura 2. En 1970 J.S. Griffith y R. Latarget plantean que estos agentes infecciosos carentes de ácidos nucléicos en vez de estructura viral podrían tener naturaleza esencialmente protéica..

  6. Kinetics of the U-1% Mo alloy transformation during continual cooling; Kinetika transformacije legura U-1% Mo pri kontinuiranom hladjenju

    Energy Technology Data Exchange (ETDEWEB)

    Mihajlovic, A; Djuric, B; Tepavac, P [Institute of Nuclear Sciences Boris Kidric, Vinca, Beograd (Yugoslavia)

    1965-11-15

    Study of continuous cooling of the U-1% Mo alloy is significant if it could be used as fuel in the nuclear reactor. Previous studies were dealing with relatively low cooling rate up to 3 deg C/s{sup 1}, which produced alpha + gamma structure. This task was devoted to testing the U-1% Mo alloy properties at higher cooling rates in order to discover whether bainite reaction and favourable alpha grain could be achieved under certain conditions.

  7. The Effect of Service Quality on Patient loyalty: a Study of Pri-vate Hospitals in Tehran, Iran

    OpenAIRE

    E Zarei; A Rahimi Forushani; A Rashidian; SM Ghazi Tabatabaei; M Arab

    2012-01-01

    Background: Service quality is perceived as an important factor for developing patient's loyalty. The aim of this study was to determine the hospital service quality from the patients' viewpoints and the relative importance of quality dimensions in predicting the patient's loyalty. Methods: A cross-sectional study was conducted in 2010.The study sample was composed of 943 patients selected from eight private general hospitals in Tehran. The survey instrument was a questionnaire included 24 it...

  8. Reliability of the seismic characteristics in the nuclear power plant location; Pouzdanost seizmickih karakteristika pri lociranju nuklearne elektrane

    Energy Technology Data Exchange (ETDEWEB)

    Marsicanin, B [Institut za Nuklearne Nauke Boris Kidric, Belgrade (Yugoslavia)

    1982-07-01

    Seismic characteristics for a nuclear power plant location are partly obtained from the analysis of past earthquakes. Data from older history concern damages, the newer data are in the form of seismic records. These two sources are often had to correlate, and the data dissipation is very large. Therefore these, rather unreliable data are not a convenient base for the precise anti-seismic analysis. A redistribution of efforts in order to get more reliable basic data seems necessary. (author)

  9. AVTIZEM Z DODATNO MOTNJO V DUŠEVNEM RAZVOJU PRI MLADOSTNIKIH V ZUDV DR. MARIJANA BORŠTNERJA DORNAVA

    OpenAIRE

    Gomilšak, Marjeta

    2009-01-01

    Otroški avtizem danes strokovnjaki pojmujejo kot razvojno nevrološko motnjo, ki se kaže v verbalni in neverbalni komunikaciji, tipičnih vedenjskih motnjah ter nenormalni čustveni in socialni odzivnosti. Strokovnjaki lahko postavijo diagnozo glede na tipične psihične znake najkasneje v tretjem letu otrokove starosti. Tipičnih znakov pa je kar nekaj deset in se lahko med seboj različno kombinirajo. V času otrokovega razvoja nekateri izzvenijo, lahko se pojavijo novi ali drugačni. Na splošno še ...

  10. 7 CFR 14.6 - Criteria for determining the pri- mary purpose of payments with respect to potential exclusion...

    Science.gov (United States)

    2010-01-01

    ... conservation includes actions that, for a given level of water supply, reduce the demand for or use of water by... reuse of water, thereby making existing supplies available for other current or future uses; or (iv) Improving land management practices for the purpose of reducing water use, loss, waste, increasing the...

  11. Disfunktsiya endoteliya i narusheniya trombotsitarno-koagulyatsionnogo gemostaza v razvitii diabeticheskoy nefropatii pri sakharnom diabete 2 tipa

    Directory of Open Access Journals (Sweden)

    V I Sizikov

    2007-03-01

    Full Text Available Цель. Изучить функциональное состояние эндотелия и коагуляционно-тромбоцитарного гемостаза у больных с впервые выявленным СД 2 типа. Материалы и методы. Для исследования было сформировано 3 группы пациентов (сопоставимых по возрасту, полу, степени ожирения и АГ: 1 больные с впервые выявленным СД 2 типа с ДН на стадии МАУ (33 человека, 2 с впервые выявленным СД 2 типа без ДН (28 человек, 3 группа контроля ? лица без нарушения углеводного обмена (34 человека с ожирением и АГ I-II степени. Определялся гликированный гемоглобин, МАУ. Производилась оценка тромбоцитарного звена гемостаза. Определяли число тромбоцитов и уровень фибриногена; фактор Виллебранда (ФВ, протромбиновое отношение (ПО и время рекальцификации. Функцию эндотелия оценивали на плечевой артерии (ПА. Результаты. У больных СД 2 и ДН на стадии МАУ дисфункция эндотелия оказалась более выраженной. Концентрация HbA1c в группе с ДН была на 0,6% выше, чем в группе с СД 2 без МАУ. Выделение белка с мочой у пациентов с ДН была на 90,9% (в 11 раз выше, чем у больных с СД без ДН У больных СД выявлена отрицательная корреляция между уровнем метаболитов NO в плазме и МАУ. Выводы. У больных с впервые выявленным СД 2 ответ ПА на РГ при наличии ДН на стадии МАУ меньше, чем у больных без ДН. СД 2 характеризуется изменениями тромбоцитарно-коагуляционного гемостаза, что проявляется повышением количества тромбоцитов с увеличением их спонтанной агрегации. Тромбоцитарно-коагуляционные измененияя наиболее выражены у больных СД 2 с ДН на стадии МАУ. Уровень метаболитов NO у больных с ожирением и АГ без СД 2 типа выше, чем при СД 2. Это может указывать на снижение выработки эндотелием NO при хронической гипергликемии.

  12. Increasing the effectiveness of purification of wash water discharge during placer mining. Povyshenie effekitivnosti ochistki promstokov pri razrabotke rossypei

    Energy Technology Data Exchange (ETDEWEB)

    Volkova, V M; Matveev, A A

    1981-01-01

    In the book research results are generalized for processes of water supply and purification of wash water discharges from dredge mining of placer deposits. Aspects of the geological and mineralogical structure of the solid phase of dredge waste waters and regularities in its influence on the sedimentation capacity of the suspended matter are examined. On the basis of a study of distinctive features in the hydrodynamic processes occurring in dredge sludge-settling tanks, a method is proposed for calculation of the settling tank parameters, allowing their areas of application for wash water discharge clarification to be determined reliably. Results are reported for a study of methods of intensification of the deposition of suspended clay particles in dredge waste waters, (methods) based on the use of both a series of coagulants and flocculants producible by industry and various production wastes. Aspects of the theory and practice of organizing circulating water supply for dredges are examined. The influence of wash water discharges forming during placer mining on the environment is assessed.

  13. Využitie informačných technológií pri strategickom rozhodovaní

    OpenAIRE

    Zagorsek, Branislav

    2011-01-01

    New ways of strategic approach are available due to information technologies. New dimensions in business experiments are possible. Company can now meet its research needs much more efficient. It takes less money and less time to come to similar results with business experiments as with traditional market research methods. The strategy can be more precise because of the large amount of real time data. Profit can be significantly enlarged if the product price is set on the upper section of pric...

  14. The adsorption capacity of an ocher decreases arsenic intake in maize; Adsorpcna kapacita okru znizuje prijem arzenu pri kukurici

    Energy Technology Data Exchange (ETDEWEB)

    Drlickova, G; Vaculik, M; Lux, A [Univerzita Komenskeho v Bratislave, Prirodovedecka fakulta, Katedra fyziologie rastlin, 84215 Bratislava (Slovakia)

    2012-04-25

    The aim of the experiment was to compare the growth of maize (Zea mays L.), hybrid Valentine, in two types of contaminated soil substrate (ocher and stacks) with different concentrations of arsenic (As) derived from an old mining site in Pernek in the Small Carpathians. Plants were grown in a greenhouse for 15 weeks. We found that although the total concentration of As in stacks was 2.6 times lower than in ocher (90.05 mg kg{sup -1} in stacks and 236.8 mg kg{sup -1} in ocher) the plants grown in stacks accumulated in their tissues more As compared to the plants growing in ocher. Moreover, plants in stacks were significantly smaller, they produced less biomass and bloomed later. This paradox can be explained by reduced mobility of As in ocher substrates characteristic by high content of hydro-oxides of Fe. These compounds are in fact capable of binding arsenates, what leads to decrease of their concentration in the soil solution, and thus the availability for the plants. (authors)

  15. Ranges of Iodine and Bromine Isotopes Produced in the Interaction of High-Energy Protons with Uranium; Isotopes de l'Iode et du Brome Produits par l'Interaction de Protons de Haute Energie avec l'Uranium; 041f 0420 041e 0411 0415 0413 0418 0418 0417 041e 0422 041e 041f 041e 0412 0419 041e 0414 0410 0418 0411 0420 041e 041c 0410 , 041f 041e 041b 0423 0427 0415 041d 041d 042b 0425 041f 0420 0418 0412 0417 0410 0418 041c 041e 0414 0415 0419 0421 0422 0412 0418 0418 041f 0420 041e - 0422 041e 041d 041e 0412 0411 041e 041b 042c 0428 041e 0419 042d 041d 0415 0420 0413 0418 0418 0421 0423 0420 0410 041d 041e 041c ; Alcance de los Isotopos del Yodo y del Bromo Producidos en la Interaccion de Protones de Alta Energia con el Uranio

    Energy Technology Data Exchange (ETDEWEB)

    Brandt, R. [CERN, Geneva (Switzerland); Max Planck Institut fuer Kernphysik, Heidelberg, Federal Republic of Germany (Germany)

    1965-07-15

    la produccion de isotopos deficientes en neutrones vuelve a observarse empleando altas energias de bombardeo. El autor centra su estudio en esos isotopos deficientes en neutrones, que practicamente se producen solo a niveles superiores a 1 GeV; a energias de bombardeo mas elevadas, su alcance esta limitado aproximada mente a la mitad del alcance de los productos de fision normales, lo que indica que se forman en virtud de un proceso distinto del de fision. El autor examina estas conclus iones teniendo en cuenta modelosde 'espalacion ' y de ' fragmentacion '. definiendo de nuevo estos dos terminos. (author) [Russian] Obychnye jeksperimenty po probegam s ispol'zovaniem tolstoj uranovoj fol'gi vmeste s aljuminievymi lovushkami i dozimetrami provodjatsja na dvuh uskoriteljah CERN s protonami, imejushhimi jenergii 0,55 Bjev i 18,2 Bjev. Iod (ili brom) vydeljadtsja himicheshim putem i razdeljaetsja v separatore radioizotopov v CERN. V rezul'tate poluchajut obrazcy bez nositelja, soderzhashhie po sushhestvu tol'ko odin chistyj radioaktivnyj izotop. Opredeljaetsja takzhe vyhod himicheskih produktov. Analiz dannyh pozvoljaet poluchit' neposredstvenno probeg dlja kazhdogo izotopa v urane. Vse izotopy joda imejut odin i tot zhe probeg pri jenergii protonov 0,55 Bjev, t.e. oni vse obrazujutsja v processe delenija. Ranee bylo izvestno, chto izotopy Joda s izbytkom nejtronov imejut priblizitel'no odin i tot zhe probeg, nezavisimo ot togo,prevyshaet li jenergija protonov 1 Bjev ili ona nizhe jetogo urovnja, a takzhe, chto izotopy joda s nedostatkom nejtronov dajut rezkoe sokrashhenie, priblizitel'no na polovinu, pri uvelichenii jenergii protonov svyshe 1 Bjev. Pokazyvaetsja, chto jeto sokrashhenie probega proishodit dovol'no vnezapno, privodja k skachku na krivoj zavisimosti probega ot massy izotopa joda. Izotopy s nedostatkom nejtronov, imeja sokrashhennyj probeg pri jenergii protonov svyshe I Bjev, javljajutsja temi zhe samymi izotopami, v otnoshenii kotoryh nabljudalos' sil

  16. Retention in Solid KIO{sub 3} Activated with Fast and Slow Neutrons; Retention dans KIO{sub 3} Solide Active par des Neutrons Rapides et des Neutrons Lents; 0423 0414 0415 0420 0416 0410 041d 0418 0415 0412 0422 0412 0415 0420 0414 041e 041c KIO{sub 3}, 0410 041a 0422 0418 0412 0418 0420 041e 0412 0410 041d 041d 041e 041c 0411 042b 0421 0422 0420 042b 041c 0418 0418 041c 0415 0414 041b 0415 041d 041d 042b 041c 0418 041d 0415 0418 0422 0420 041e 041d 0410 041c 0418 ; Retencion en KIO{sub 3} Solido Activado con Neutrones Rapidos y Lentos

    Energy Technology Data Exchange (ETDEWEB)

    Aten, A.H.W. Jr.; Lindner-Groen, M.; Lindner, L. [Instituut voor Kernphysisch Onderzoek, Amsterdam (Netherlands)

    1965-04-15

    s pomoshh'ju bystryh i teplovyh nejtronov. Pri bystryh nejtronah uderzhanie joda-128 bylo znachitel'no vyshe, chem uderzhanie joda-126, no uderzhanie joda-128 s pomoshh'ju teplovyh nejtronov bylo dazhe vyshe, chem uderzhanie, poluchennoe s pomoshh'ju bystryh nejtronov. Jeto ukazyvaet, chto, pomimo shemy raspada, jenergija otdachi mozhet takzhe sostavljat' faktor, opredeljajushhij uderzhanie. Otzhig joda-128 i Joda-126 (oba polucheny s pomoshh'ju bystryh nejtronov) takzhe okazalsja razlichnym. Pri obrabotke posle obluchenija pri temperaturah do 100 Degree-Sign C uderzhanie oboih izotopov vozrastalo na odin i tot zhe procent obshhej aktivnosti, t.e. raznica v uderzhanii ostavalas' postojannoj. Takim obrazom frakcija joda-126, kotoraja umen'shalas' processom otdachi, bol'she umen'shennoj frakcii joda-128, znachitel'no men'she podvergalas' vozdejstviju nagreva, chem frakcija, kotoraja umen'shaetsja v oboih izotopah. Ochevidno, chto takoe slozhnoe himicheskoe povedenie radioaktivnogo atoma otdachi mozhno ob{sup j}asnit' tol'ko s pomoshh'ju dostatochnoj detal'noj modeli. (author)

  17. Saddle-Point Rotational States from Resonance Fission of Oriented Nuclei; Etats Rotationnels a l'Etranglement Resultant de la Fission, par Neutrons de Resonance, de Noyaux Orientes; 0412 0420 0410 0429 0410 0422 0415 041b 042c 041d 042b 0415 0421 041e 0421 0422 041e 042f 041d 0418 042f 0421 0415 0414 041b 041e 0412 041e 0419 0422 041e 0427 K 0418 0412 0420 0415 0417 0423 041b 042c 0422 0410 0422 0415 0420 0415 0417 041e 041d 0410 041d 0421 041d 041e 0413 041e 0414 0415 041b 0415 041d 0418 042f 041e 0420 0418 0415 041d 0422 0418 0420 041e 0412 0410 041d 041d 042b 0425 042f 0414 0415 0420 ; Estados Rotacionales en el Punto de Estrangulacion Debidos a la Fision por Resonancia de Nucleos Orientados

    Energy Technology Data Exchange (ETDEWEB)

    Dabbs, J. W.T.; Walter, F. J.; Parker, G. W. [Oak Ridge National Laboratory, Oak Ridge, TN (United States)

    1965-07-15

    temperature 1,2 Degree-Sign K s pomoshh'ju teplovyh nejtronov, o chem soobshhalos' ranee. Jeti jeksperimenty teper' rasshireny s vkljucheniem rezonansnyh jenergij nejtronov i pri temperature 0,5 Degree-Sign K. Pri ispol'zovanii vmeste s neposredstvennym opredeleniem (s pomoshh'ju poljarizovannyh nejtronov i poljarizovannyh jader) znachenij J, svjazannyh s kazhdym rezonansom, takoe rasshirenie daet vozmozhnost' znachitel'no polnee ponjat' chislo i harakter imejushhihsja kanalov delenija. Jeti voprosy davno stojat v oblasti delenija. Dlja urana-235 bylo ustanovleno, chto anizotropija oskolkov delenija priblizhaetsja k verojatnomu maksimumu pri rezonansah s jenergijami 1,14 i 8,8 jev, so znakom, protivopolozhnym ustanovlennomu ranee dlja al'fa-chastic. Krome togo, bylo ustanovleno znachitel'noe umen'shenie v anizotropii pri jenergii nejtronov v rajone horosho izvestnogo rezonansa 0,3 jev. Pri otsutstvii neposredstvennoj informacii otnositel'no znachenij J v urane-235 byla sdelana ssylka na mnogourovnevuju aproksimaciju k erf, podobnuju aproksimacii Kirpichnikova i dr., v kotoroj predpolagalos', chto J(0,3 jev) Not-Equal-To J( 1,14 jev) v protivopolozhnost' predydushhim mnogourovnevym aproksimacijam. Jeti predvaritel'nye dannye sovmestimy s dannymi otnositel'no anizotropii, proporcional'noj raschetnomu vkladu v erf dvuh vozmozhnyh znachenij J. Forma krivoj, odnako, ne sovmestima s drugimi dannymi, naprimer, s dannymi otnositel'no izmenenija sootnoshenija pik-vpadina Falera i Trompa, chto, takim obrazom, dovol'no kategoricheski ukazyvaet na to, chto J(0,3 jev) Not-Equal-To J(1,14 jev) ne sleduet prinimat' kak ischerpyvajushhee. Provodjatsja novye izmerenija. (author)

  18. Advanced epithermal thorium reactor (AETR) physics; Physique d'un reacteur au thorium, a neutrons epithermiques, de type perfectionne (AETR); Fizika usovershenstvovannog o nadteplovogo torievogo reaktora; Fisica del reactor epitermico de tipo avanzado, alimentado con torio (AETR)

    Energy Technology Data Exchange (ETDEWEB)

    Campise, A. V. [Atomics International, Canoga Park, CA (United States)

    1962-03-15

    del {sup 233}Pa y de isotopos del uranio sobre el balance neutronico relativo y se evalua la probable razon de reproduccion y las caracteristicas de combustion teniendo en cuenta la imprecision en el conocimiento de las secciones eficaces nucleares. (author) [Russian] Rassmatrivayuts ya printsipy konstruirovani ya usovershenstvovannog o nadteplovogo torievogo reaktora s uchetom sushchestvuyushchej teorii yadernykh parametrov i potentsial'nogo poleznogo ispol'zovaniya nejtronov. Byl izuchen ehffekt rezonansnogo zakhvata toriya v sistemakhs grafitovym zamedlitelem dlya nejtronov s ehnergiyami ot 0,10 do 100 kehv. Ispol'zuyutsya formuly uzkogo rezonansa i shirokogo rezonansa v tselyakh polucheniya zavisimogo ot temperatury ehffektivnogo rezo- nansnogo integrala torievogo sterzhnya, kotoryj vyrazhaetsya v vide ehkvivalentnykh mnogogruppovykh sechenij. Neobkhodimost' v poluchenii yadernykh dannykh v oblasti promezhutochnykh ehnergij privela k sozdaniyu proekta i konstruktsii kriticheskoj sborki. Yadernyj proekt ehtoj sborki podcherkivaet vazhnost' dannykh poperechnykh sechenij i teoreticheskoj interpretatsii ehksperimental'nykh rezul'tatov, imeyushchikh otnoshenie k usovershenstvovannom u nadteplovomu torievomu reaktoru. Tochnost' analiticheskikh metodov byla podtverzhdena pri analize ehksperimental'nykh rezul'tatov, poluchennykh na reaktore nulevoj moshchnosti ZPR-III. Provodyatsya sravneniya trekh konfiguratsij teploperedachi s ispol'zovaniem udvoennogo vremeni v kachestve optimal'nogo parametra. EHffekt proizvodstva izotopa protaktiniya-233 i urana pri otnositel'no poleznom ispol'zovanii nejtronov, vozmozhnye koehffitsienty vosproizvodstva i kharakteristiki vygoraniya otsenivayutsya v svyazi s netochnostyami v yadernykh poperechnykh secheniyakh. (author)

  19. Slow Neutron Spectrometers at the Swedish Reactors; Spectrometres a Neutrons Lents des Reacteurs Suedois; 0421 041f 0415 041a 0422 0420 041e 041c 0415 0422 0420 042b 041c 0415 0414 041b 0415 041d 041d 042b 0425 041d 0415 0419 0422 0420 041e 041d 041e 0412 041d 0410 0428 0412 0415 0414 0421 041a 0418 0425 0420 0415 0410 041a 0422 041e 0420 0410 0425 ; Espectrometros para Neutrones Lentos en los Reactores de Suecia

    Energy Technology Data Exchange (ETDEWEB)

    Dahlborg, U.; Skoeld, K. [AB Atomenergi, Stockholm (Sweden); Larsson, K. -E. [Royal Institute of Technology, Stockholm (Sweden)

    1965-06-15

    efecto combinado de un filtro de Be y un selector con una curva de transmision estrecha. En este espectrometro, lo mismo que en el de Estocolmo, el selector se coloca delante de la muestra para poder registrar simultaneamente datos a diferentes angulos de observacion. En el reactor R2 se encuentra tambien instalado un espectrometro triaxial de cristal. Los autores describen diversas caracteristicas de los instrumentos, tales como las intensidades y los poderes de resolucion alcanzados, e indican en que medida se adaptan a ciertas determinaciones. Demuestran con datos numericos que un aumento relativamente pequeno del poder de resolucion ocasiona una elevada perdida de intensidad. Cuando se comparan los reactores RI y R2 como fuentes neutronicas para experimentos en el orificio de haz, es interesante observar que, si bien el flujo neutronico del reactor R2 es 100 veces mayor, el rendimiento en neutrones es unas 10 veces menor. El fenomeno se debe a la estrechez de los orificios de haz y a los filtros que son necesarios para reducir los flujos gamma y de neutrones rapidos. Como ilustracion, la memoria discute brevemente datos de dispersion en H{sub 2}O obtenidos con los diversos instrumentos. La comparacion demuestra que, para experimentos con el orificio de haz, el reactor de agua pesada presenta ventajas innegables. (author) [Russian] V nastojashhee vremja na dvuh shvedskih issledovatel'skih reaktorah K1 v Stokgol'me i R2 v Studsvike, imejutsja vozmozhnosti dlja ispol'zovanija chetyreh razlichnyh spektrometrov nejtronov v opytah po neuprugomu rassejaniju nejtronov. V Stokgol'me na tjazhelovodnom reaktore R1 moshhnost'ju 600-kvt odnovremenno ispol'zujutsja dva spektrometra po vremeni proleta s medlenno dejstvujushhim preryvatelem. Na odnom reaktore my postojanno ispol'zuem berillievyj fil'tr v kachestve monohromatora, v to vremja kak na drugom reaktore mozhno ispol'zovat' libo berillievyj fil'tr, libo kristallicheskij monohromator. Obnaruzheno, chto pri izmerenijah

  20. Measurements with a Pulsed and Modulated Source in a Reactor; Mesures au Moyen d'une Source Pulsee et Modulee dans un Reacteur; Izmereniya v reaktore s pomoshch'yu impul'snogo i moduliruemogo is tochnika; Mediciones Efectuadas en Reactor con una Fuente Pulsada y Modulada

    Energy Technology Data Exchange (ETDEWEB)

    Rotter, W. [Centre d' Etude de l' Energie Nucleaire, Mol (Belgium)

    1965-10-15

    analizador multicanal. Como el flujo del generador es perfectamente sinusoidal, la respuesta del reactor puede integrarse en cada cuarto de perfodo, puesto que el circuito de medicion esta gobernado por el generador; por consiguiente, el tiempo de medicion es minimo. Los datos registrados sobre cinta perforada se analizan con ayuda de una calculadora numerica. (author) [Russian] Generator, vyhod nejtronov kotorogo izmenjaetsja v zavisimosti ot funkcii kakogo-to vremeni, byl razrabotan v issledovatel'skih laboratorijah Filipsa. Ego prakticheskaja pol'za v oblasti fiziki reaktorov byla prodemonstrirovana na serii izmerenij, provedennyh v reaktore BR-O 2 v podkriticheskom sostojanii. Horoshaja ustojchivost', vozmozhnost' proizvodit' rezkie izmenenija intensivnosti nejtronnogo potoka, impul'sirovat' vyhod ili modulirovat' ego sinusoidal'no, - vse jeto delaet takoj generator ochen' gibkim. On pozvoljaet ustanavlivat' reaktivnost' ({rho} = {Delta}k/{beta}) i vremja zhizni nejtronov ( Script-Small-L /{beta}) po razlichnym nezavisimym metodam. Tochnoe sravnenie jetih metodov vozmozhno, poskol'ku poslednie mogut byt' ispol'zovany bez izmenenija uslovij izmerenija. Ustanovleno: 1) {rho} na osnove zapazdyvajushhih nejtronov putem mgnovennogo umen'shenija vyhoda nejtronov; 2) {rho} na osnove mgnovennyh nejtronov putem ispol'zovanija impul'sov nejtronov; 3) Script-Small-L /{beta} putem soedinenija 1) i 2) dlja 0,5 $ < {rho} < 2 $ ; 4) Script-Small-L /{beta} na osnove peredatochnoj funkcii reaktora dlja moduliruemogo istochnika. Obsuzhdajutsja peredatochnye funkcii dlja oscilljatora reaktivnosti i dlja sinusoidal'no moduliruemogo istochnika. Pokazano, chto izmerenie Script-Small-L /{beta} vozmozhno dlja 0,1 $< {rho} < $ s uchetom primenenija moduliruemogo istochnika. Tot zhe metod takzhe daet reaktivnost' s pomoshh'ju otnoshenija mgnovennyh nejtronov k zapazdyvajushhim nejtronam dlja optimal'noj chastoty, prichem na praktike jeto proishodit nezavisimo ot dannyh, otnosjashhihsja k

  1. Fukci vozbuždenia dlja radionuklidov 44Sc, 46Sci, 47Sc, obrazovavšichsa pri oblučenii 45Sc dejtronami i 6He

    Czech Academy of Sciences Publication Activity Database

    Kulko, A. A.; Skobelev, N. K.; Burjan, Václav; Hons, Zdeněk; Daniel, A.V.; Demekhina, R.; Kalpakchieva, R.; Kugler, Andrej; Mrázek, Jaromír; Penionzhkevich, Y. E.; Piskoř, Štěpán; Sobolev, Yu. G.; Šimečková, Eva

    2011-01-01

    Roč. 75, č. 4 (2011), s. 574-576 ISSN 0367-6765 R&D Projects: GA ČR GAP203/10/0310; GA MŠk LC07050 Institutional research plan: CEZ:AV0Z10480505 Keywords : excitation functions * cross sections * radioactive beams Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics

  2. Pričakovanja študentov glede na razlike v kakovosti storitev visokošolskih zavodov = Student Expectations of Higher Education Institution Services

    Directory of Open Access Journals (Sweden)

    Marijana Sikošek

    2011-09-01

    Full Text Available New challenges witnessed also in Slovenian higher education requirea different approach towards understanding students and their expectations,as higher education becomes increasingly market-oriented.Since research on assessing student expectations is still rare, we havedecided to establish the expectations of students regarding their studiesat the University of Primorska. With the help of factor analysis, wehave determined that these expectations are related to the followingsix factors: relationship between teaching staff and students, faculty’sreputation, faculty’s environment, employment chances, academic excellence,and staff competence and expertise. Cluster analysis has revealeda difference between the expectations of students of professionalstudy programmes and students of academic study programmes.

  3. Finančné due diligence: teória a prax pri M&A transakciách

    OpenAIRE

    Vavrovič, Maroš

    2015-01-01

    This thesis focuses on financial due diligence within M&A transactions. In the first part, due diligence is characterized as one of the main factors of M&A failure. Due diligence process and definition is described afterwards, as well as purpose of due diligence, various types of due diligence and position of due diligence within individual phases of M&A transaction. Furthermore, financial due diligence and its main principles are defined. Essential differences between financial due diligence...

  4. Funciones de la proteína priónica celular, alfa-sinucleína y reelina en enfermedades neurodegenerativas

    OpenAIRE

    Urrea Zazurca, Laura

    2018-01-01

    Las enfermedades neurodegenerativas son una serie de trastornos del sistema nervioso caracterizadas por la pérdida de grupos neuronales específicos y por la presencia de cuerpos de inclusión proteicos, entre ellas las más frecuentes son la enfermedad de Alzheimer y la enfermedad de Parkinson, ambas asociadas a la edad. Su etiología, en la mayoría de los casos, aún se desconoce y su manifestación clínica es progresiva y crónica. La enfermedad de Parkinson se caracteriza por la pérdida de ne...

  5. On the problem of radiation hazard of fuel-containing materials in conversion of object <>; O probleme yadernoj opasnosti toplivosoderzhashchikh materialov pri preobrazovanii ob`ekta << Ukrytie >>.

    Energy Technology Data Exchange (ETDEWEB)

    Badovskij, V P; Dubar, L V; Shevchenko, S V [Myizhgaluzevij Naukovo-Tekhnyichnij Tsentr ` ` Ukrittya ` ` , Natsyional` na Akademyiya Nauk Ukrayini, Chornobil` (Ukraine)

    1994-12-31

    A problem of radiation hazard of fuel-containing materials (FCM) in object << Shelter >> is discussed. A conservative approach is applied. The approach was developed with allowance for a conservative estimation of fuel distribution in FCM and errors of the FCM hazard measurements. A version of 4PB accident development is proposed. According to this version there is considerable part of fuel in 305/2 room which forms FCM with average fuel concentration in this room over 25%.

  6. Compensative-rehabilitative responses of blood-forming tissue cells after chronic irradiation.; Kompensatorno-vosstanovitel`nye reaktsii kletok krovetvornoj tkani pri khronicheskom obluchenii.

    Energy Technology Data Exchange (ETDEWEB)

    Nosova, L I; Ryasenko, V I [Yinstitut Zoologyiyi, Natsyional` na Akademyiya Nauk Ukrayini, Kyiv (Ukraine); [Nauchno-Proizvodstvennoe Ob` ` edinenie Pripyat` , Chernobyl (Ukraine)

    1994-12-31

    The bone marrow eosinophils of minks and wild rats subjected to chronical irradiation are able of secreting a peroxidase system obtained by neutrophils. As a result heterophilic granulocytes appear in the peripheral blood. Intercellular transgranulation, emperiopolesis into megakaryocytes and eosinophils as peroxidase donors for neutrophils are regarded as cellular and subcellular adaptations in the mammalian bone marrow after irradiation.

  7. National audit of the quality of pain relief provided in emergency departments in Aotearoa, New Zealand: The PRiZED 1 Study.

    Science.gov (United States)

    2017-04-01

    Pain is a common feature of ED presentations and the timely provision of adequate analgesia is important for patient care. However, there is currently no New Zealand data with respect to this indicator of care quality. The present study aimed to provide a baseline for the quality of care with respect to the provision of timely and adequate analgesia in New Zealand EDs. The present study is a secondary analysis of data initially collected for the Shorter Stays in Emergency Department Study, using a retrospective chart review of 1685 randomly selected ED presentations (2006-2012) from 26 New Zealand public hospital EDs. Of the 1685 charts randomly selected, 1547 (91%) were reviewed from 21 EDs. There were 866 ED presentations with painful conditions, of whom 132 (15%) did not have pain recorded, 205 (24%) did not receive pain relief and 19 (2%) did not have time of analgesia documented leaving 510 (59%) for the analysis of time to analgesia. Four hundred and fifty-seven (53%) did not have pain well documented sufficiently to assess adequacy, leaving 277 (32%) for the analysis of adequacy of analgesia. The median (interquartile range) time to analgesia was 62 (30-134) min and the provision of adequate analgesia was 141/277 (51%, 95% CI: 45-57%); however, there was some variation between hospitals for both outcomes. Although these outcomes are on a par with other countries, this baseline audit has shown both poor documentation and variation in the provision of timely and adequate pain relief in New Zealand EDs, with room for improvement with respect to this quality indicator. © 2017 Australasian College for Emergency Medicine and Australasian Society for Emergency Medicine.

  8. Uporabnost maščobnih kislin omega-3 pri obravnavi ran na koži: Effect of omega-3 fatty acids on skin wound healing:

    OpenAIRE

    Langerholc, Tomaž; Pajnkihar, Majda; Vrbnjak, Dominika

    2015-01-01

    Introduction: The purpose of this article is to analyse the effect of omega-3 fatty acids on wound healing and to demonstrate their usefulness in the wound treatment. Methods: Databases PubMed, CINAHL, Medline and ScienceDirect were searched for the literature review and analysis. A search was performed with keywords in English: omega-3 fish oil, polyunsaturated fatty acid (PUFA), wound, wound healing, and Boolean operator AND. Experimental or randomized clinical studies published in English ...

  9. Main aspects of estimating the working capability under prolonged effect of ionizing radiation; Osnovnye aspekty otsenki rabotosposobnosti izdelij pri dlitel`nom vozdejstvii ioniziruyushchikh izluchenij

    Energy Technology Data Exchange (ETDEWEB)

    Kulikov, I V

    1994-12-31

    Methodic recommendations concerning the investigation into the working capacity of products for evaluation of radiation resistance, reliability and physical aging under thermo current loads are given. Applicability of defect additive accumulation principle, radiation defect annealing kinetics and the assumed effect of the product resistance change under different values of the radiation intensity are described.

  10. POLOŽAJ, POMEN IN VLOGA INSTITUTA NEPREMIČNINSKE AGENCIJE PRI PROMETU Z NEPREMIČNINAMI V SLOVENSKEM PRAVNEM PROSTORU

    OpenAIRE

    Džordžević, Matej

    2017-01-01

    Skozi analiziranje pravnih virov, ki urejajo konstituiranje in delovanje nepremičninskih agencij v slovenskem pravnem prostoru sem ugotovil, da pravni viri, ki urejajo področje konstituiranja in delovanja nepremičninske družbe urejajo to področje na zelo ustrezen način in, da je možno relativno hitro, to je v nekaj tednih, ustanoviti nepremičninsko družbo in jo seveda tudi vpisati v sodni register ter jo narediti sposobno za delovanje na trgu. Hitrost je v veliki meri odvisna predvsem od prip...

  11. Razlike med spoloma pri nekaterih simptomih stresa ter intenzivnost doživljanja stresnih simptomov = Gender Differences in Some Stress Symptoms and Intensity of Experiencing Stress Symptoms

    Directory of Open Access Journals (Sweden)

    Maja Meško

    2010-06-01

    Full Text Available The aim of this study was to identify the symptoms of stress and to establishgender differences in stress symptoms. We tried to find out ifthere are gender differences in the stress level at work, if there aregender differences in terms of stress symptoms frequency, and if thereare gender differences in terms of the intensity of experiencing stresssymptoms. In this study 85 randomly selected managers from Slovenecompanies participated. The results of the study have shown that thereare gender differences in terms of all the above mentioned factors,namely a statistically higher level of stress in women. In terms of stresssymptoms occurrence there are gender differences in some stress symptomsas well as in the intensity of experiencing stress symptoms.

  12. Review of the Monograph: Seleznev Yu.V. Russkie knyaz’ya pri dvore khanov Zolotoy Ordy (Russian Princes at the Court of the Golden Horde Khans

    Directory of Open Access Journals (Sweden)

    Nesin M.A.

    2017-12-01

    Full Text Available This article contains a review of the monograph by Yu.V. Seleznev published in early 2017 and dedicated to the relations of Russian princes with the Golden Horde’s khans and their status among the Golden Horde’s nobility. This work is the first comprehensive study in the historiography of this issue for all two and a half centuries of the Tartar domination. The monograph was published for the first time in 2013 and served as the basis for a doctoral dissertation, which Seleznev defended in 2015. The book was reprinted with certain changes in 2017. The book commendably contains an abundance of factual material through the use of diverse sources and strands of historiography. Seleznev examines the social terminology of Golden Horde-Russian relations, the structure of the Golden Horde’s nobility and the trips of princes to the Horde, drawing attention not only to the status of the great Vladimir and Moscow princes, but also that of other great and appanage princes. He makes a significant contribution to the resolving the debate regarding the nature of the Golden Horde’s domination in Rus’ by examining in detail the relationship of the Russian princes with the Golden Horde’s authorities in different years. The book’s author proposed to divide the Golden Horde’s “yoke” into seven periods characterized by “changes in the degree of sovereignty and jurisdiction of the khan in relation to Russian principalities”. The author of this review agrees with the main conclusions of the book under review, but at the same time he notes some reservations and criticisms, which do not, however, reduce the academic caliber of the monograph.

  13. Solution of complex measuring problems for automation of a scientific experiment and technological processes; Reshenie slozhnykh izmeritel`nykh problem pri avtomatizatsii nauchnogo ehksperimenta i tekhnologicheskikh protsessov

    Energy Technology Data Exchange (ETDEWEB)

    Gribov, A A; Zhukov, V A; Sdobnov, S I; Yakovlev, G V [Rossijskij Nauchnyj Tsentr Kurchatovskij Inst., Moskva (Russian Federation)

    1996-12-31

    Paper discusses problems linked with automation of reactor measurements. Paper describes automated system to carry out neutron-physical experiments linked with measuring of slowly varying current of ionization chambers. The system is based on the trunk-module principle with application of a specialized 16-discharge trunk. Total information capacity for one current channel constitutes 5 bytes. 4 refs.; 1 fig.

  14. Lokalizacija istočnikov električeskoj i fokusov gemodinamičeskoj aktivnosti mozga pri voobraženii dviženij

    Czech Academy of Sciences Publication Activity Database

    Frolov, A. A.; Húsek, Dušan; Mokienko, O.; Bobrov, P.; Chernikova, L.; Konovalov, R.

    2014-01-01

    Roč. 40, č. 3 (2014), s. 45-56 ISSN 0131-1646 Grant - others:GA MŠk(CZ) ED1.1.00/02.0070; GA MŠk(CZ) EE.2.3.20.0073 Program:ED Institutional support: RVO:67985807 Keywords : brain computer interface * independent component analysis * EEG pattern classification * motor imagery * inverse EEG problem Subject RIV: IN - Informatics, Computer Science

  15. Project PriMo: sharing principles and practices of bronchodilator therapy monitoring in COPD: a consensus initiative for optimizing therapeutic appropriateness among Italian specialists.

    Science.gov (United States)

    Cazzola, Mario; Brusasco, Vito; Centanni, Stefano; Cerveri, Isa; De Michele, Fausto; Di Maria, Giuseppe; Palange, Paolo; Pellegrino, Riccardo; Polverino, Mario; Rossi, Andrea; Papi, Alberto

    2013-04-01

    Even after publication of the 2011 update of GOLD report, some fundamental questions in the management of COPD are still open and this may weaken the applicability of these guidelines in everyday clinical practice. To assess the level of consensus amongst Italian respirologists on different topics related to diagnosis, monitoring and role of bronchodilator therapy in COPD, by using the Delphi technique. A Delphi study was undertaken between July and November 2011, when two questionnaires were consecutively sent to a panel of experts to be answered anonymously. After each round, the data were aggregated at group level of question topics and structured feedback was given to the panel. A first-round questionnaire was sent to 208 pulmonologists randomly selected from different Italian regions. The 132 respondents (63% of those initially selected) were from northern (53%), central (19%) and southern (28%) Italy. A second-round questionnaire was sent to all the first-round respondents, and a response was received from 110 of them (83%). The main topics that reached the pre-defined cut off for consensus (67% or more) were: a) bronchodilator therapy with long-acting bronchodilators could be beneficial in patients with airflow limitation even in the absence of symptoms, b) in patients not fully controlled with one long-acting bronchodilator, maximizing bronchodilation (i.e. adding another bronchodilator with a different mechanism of action) is the preferable option; and c) the use of inhaled corticosteroids (ICSs) as add on therapy should be considered in severe patients with frequent exacerbations. Italian specialists agree on several aspects of the diagnosis and treatment of COPD and expert opinion could support everyday decision process in the management of COPD. Copyright © 2012 Elsevier Ltd. All rights reserved.

  16. Calculated identification of the output of a refinate in furfurol purification of distillate oil fractions. Raschetnoye opredeleniye vykhoda rafinata pri ochistke furfurolom distillyatnykh maslyanykh fraktsii

    Energy Technology Data Exchange (ETDEWEB)

    Okhrimenko, N.V.; Dorodnova, V.S.; Martynenko, A.G.; Shiryayeva, G.P.

    1983-01-01

    The possibility is shown of using an equation proposed by Weigl and Dvayvedi for calculated identification of the outputs of a refinate in furfurol purification of gas oil fractions as applied to the purification of distillate oil fractions (350 to 420 and 420 to 500 degrees of a mixture of Eastern Ukrainian oils from the Druzhba pipeline with a content of 43.6 and 53.8 percent aromatic hydrocarbons (ArU). The deviations between the calculated values of the refinate output and the actual do not exceed 0.5 to 1.5 percent.

  17. Vloga vohunov pri razvoju sovjetske atomske bombe : diplomsko delo visokošolskega strokovnega študija Varnost in policijsko delo

    OpenAIRE

    Križan, Petra

    2013-01-01

    Človek se je že od nekdaj zavedal, da je potrebno biti v koraku pred ostalimi, če želi biti uspešen in inovativen. Toda kako vedeti, da ni nasprotnik v razmišljanju, če ne celo v dejanjih že pred tabo? Za razblinjanje teh dvomov so tukaj nastopile osebe − vohuni, o katerih govori to diplomsko delo. Poskušala sem predstaviti pomembnost delovanja vohunov, še posebej pa sem se seveda osredotočila na njihov prispevek k razvoju sovjetske atomske bombe. Na samem začetku sem opisala pojme, ki so...

  18. Substantiation of operation limits of reactivity insertion during WWER-1000 reactors start-up; Obosnovanie ehkspluatatsionnykh predelov vvoda reaktivnosti pri puske reaktorov WWER-1000

    Energy Technology Data Exchange (ETDEWEB)

    Boev, I; Sabitov, A; Sal` kov, V; Sudarev, O; Yakovlev, A [ATOMTECHENERGO RF, Novovoronezh (Russian Federation)

    1996-12-31

    The methods and programmes used to define the tolerable rate of reactivity insertion during WWER-1000 start-up are presented. They include calculation of the neutron source power in the core during the sub-critical stage and calculation of the relative neutron density and reactor period during the critical stage. The need for optimisation and regulation of tolerable rates is discussed along with the tool parameters affecting the reactivity during start-up. The possibility of increasing the feed rate of pure condensate into the first loop during the time needed to reach critical stage is justified. 4 refs., 3 tabs.

  19. Využitie enologických tanínov a chipsov pri výrobe vína

    OpenAIRE

    Stašová, Veronika

    2016-01-01

    The final thesis copes with use of oak tannins and wooden chips during the red winemaking. The theoretical part is dedicated to characteristics and division of polyphenolic compounds. In this thesis there are also mentioned different types of tannins and oak chips, their extraction, usage and their impact on wine. Experimental part of the final thesis was focused on practical trial with two red wines and various additions of either oak tannins or wooden chips. One sample from each wine was le...

  20. Vliv povrchové vrstvy Al-Si na nízkocyklovou únavu superslitiny in 713LC pri teplotě 800°C

    Czech Academy of Sciences Publication Activity Database

    Juliš, M.; Obrtlík, Karel; Podrábský, T.

    2008-01-01

    Roč. 327, - (2008), s. 197-202 ISSN 1429-6055. [Metody oceny struktury oraz wlasności materiálow i wyrobow. Svratka, 01.10.2008-03.10.2008] R&D Projects: GA AV ČR 1QS200410502; GA ČR GA106/07/1507 Institutional research plan: CEZ:AV0Z20410507 Keywords : low cycle fatigue * Inconel 713LC * surface treatment Subject RIV: JL - Materials Fatigue, Friction Mechanics

  1. Medosebni odnosi in vsebina dela kot dejavnika stresa pri srednjem managementu = Interpersonal Relationships and Work Content as Stress Factors among Middle Management

    Directory of Open Access Journals (Sweden)

    Polona Kožuh

    2011-06-01

    Full Text Available In the modern society, where importance is placed on progress, newtechnologies and economic trends, there is a lack of awareness of thesignificance of good interpersonal relations and organizational culturewithin a company. They both contribute to the better functioningof employees as well as the entire organization. The purpose of thisstudy was to determine any possible differences between the stressorslinked to the relationships within an organization and those linked tothe work of middle management. The study included 58 middle managersworking in commercial activity in the Ljubljana region. The resultshave indicated that the amount of stressors related to the relationships,and stressors related to the managers’ work, that affect themiddle managers participating in the survey is on average the same.The results have therefore shown no statistically significant differencebetween the two forms of the studied stress factors.

  2. Izboljšanje javne participacije pri prostorskem načrtovanju s pomočjo orodij spleta 2.0

    Directory of Open Access Journals (Sweden)

    Igor Bizjak

    2012-01-01

    Full Text Available Javna participacija (ang. public participation je ena od oblik sodelovanja oziroma udeleževanja javnosti v postopkih prostorskega načrtovanja, ki omogoča posameznikom in skupinam, da izrazijo svoja mnenja, dajejo pobude in aktivno sodelujejo v teh postopkih. Ker je javna participacija pogosto omejena le na dajanje pripomb na že pripravljene prostorske načrte, predvidevamo, da bi jo lahko izboljšali s pomočjo informacijskih tehnologij, in sicer z uporabo novih spletnih orodij. Ena takih novosti je splet 2.0 (ang. web 2.0, koncept, ki je bil prvič predstavljen v letu 2004 in je v svetovni splet prinesel veliko orodij, ki jih koristno uporabljajo socialna omrežja in različne spletne storitve kot participatorne storitve z velikim številom uporabnikov. V članku so analizirane možnosti za medsebojno interakcijo javne participacije in spleta 2.0. Predstavljene so zahteve javne participacije v postopkih prostorskega načrtovanja, osnovna orodja spleta 2.0 in njegove zmožnosti glede omogočanja participacije v procesih prostorskega načrtovanja. V prispevku je ugotovljeno, da so orodja spleta 2.0 zelo uporabna za vključevanje javnosti v procese prostorskega načrtovanja, vendar zahtevajo veliko predpriprav in dobro tehnično osnovo.

  3. Komorbidnost depresije in spolne disfunkcije pri pacientih ambulante za zdravljenje spolnih motenj: Comorbidity of depression and sexual dysfunction among patients of outpatient clinic for sexual disorders' treatment:

    OpenAIRE

    Lučovnik, Miha; Prokšelj, Tatjana

    2006-01-01

    Sexual dysfunction and depression often occur together, however the causal relation is unclear and has not been studied enough. Sexual dysfunction secondary to depression has been well studied, but less is known about prevalence of depressive symptoms among patients with sexual dysfunction. The aim of our study was to find out whether the depression was more common among young people with psychogenic sexual dysfunction waiting to be treated at the clinic for sexual disorders than among young ...

  4. Disrupting the balance of natural fluid systems during the working of gas condensate deposits. Narushenie ravnovesiya prirodnykh flyuidal'nykh sistem pri razrabotke gazovykh i gazokondensatnykh mestorozhdenii

    Energy Technology Data Exchange (ETDEWEB)

    Kortsenshtein, V.N.

    1980-01-01

    Natural processes that occur in the ground as a result of almost complete or partial depletion of large gas and gas-condensate deposits are analyzed. Problems concerned with the disruption of the fluid systems equilibrium are examined as represented by interstitial water and industrial gaseous and gas-condensate accumulations. Observations over a period of 20-25 years were made of the depleted deposits of North-Stavropol', Gazlin, and Shebel, whose initial hydrogeological background that serves as the basis of the reference system, has been studied in detail. Information is also presented on recently exploited water-vapor systems, such as the large Vuktyl', Orenburg, Medvezh', and Shatlyk deposits. The book is intended for a broad spectrum of geologists, hydrogeologists, and engineers interested in geology and the working of gas and gas condensate deposits. 36 references, 27 figures, 35 tables.

  5. Coherent effects in relativistic electron beams radiation in the presence of beat waves; Kogerentnye ehffekty v izluchenii relyativistskogo ehlektronnogo sgustka pri nalichii voln bienij

    Energy Technology Data Exchange (ETDEWEB)

    Gevorgyan, L A; Shamamian, A N

    1992-12-31

    The problem of relativistic electron beam-laser beat waves interaction is considered. Due to interaction the electron density is changed as opposed to the case, when it interacts with still electron plasma, the change of density gets less. But it is interesting to research the coherent spontaneous radiation of the electron beam interacting with. It is shown that this interaction brings to an increase of the partial coherent effect. The radiation efficiency depends essentially on the beam parameters, i.e. on the radio of the distinctive longitudinal dimension density. The maximum amplification takes place when the beam length makes room for an odd number of wave length quarters. Since the gain factor decreases with the radiation wave length, we offer to use high-current relativistic electron beams to generate micro radio waves. 4 refs.

  6. Correlations between maternal, breast milk, and infant vitamin B12 concentrations among mother-infant dyads in Vancouver, Canada and Pry Veng, Cambodia: an exploratory analysis

    Science.gov (United States)

    Vitamin B12 plays an essential role in fetal and infant development. In regions where animal source food consumption is low and perinatal supplementation is uncommon, infants are at risk of vitamin B12 deficiency. In this secondary analysis, we measured total vitamin B12 concentrations in maternal a...

  7. Computerized tomography data on CNS affection in systemic lupus erythematosus. Porazhenie tsentral'noj nervnoj sistemy pri sistemnoj krasnoj volchanke po dannym komp'yuternoj tomografii

    Energy Technology Data Exchange (ETDEWEB)

    Ivanova, M M; Bliznyuk, O I; Todua, F I; Tumanova, A A

    1989-01-01

    Computed tomography (CT) of the brain was employed in 40 patients with systemic lupus erythematosus (SLE). Clinical cerebral pathology was obvious in 30 and absent in 10 patients. By CT cerebral symptoms were divided of 4 groups. Clinical symptom complexes of CNS defects and SLE were reflected on definite CT images correlated with focal damage to the brain. CT picture of enlarged subarachnoid space, ventricles and basal cisterns can be observed in SLE patients without neurological symptoms. This indicated likely subclinical cerebral affection.

  8. Razvoj komunikacijskih in vodstvenih kompetenc pri vodjih tehnične stroke = The Development of Communication and Leading Competences among the Leaders of Technical Expertise

    Directory of Open Access Journals (Sweden)

    Mojca Jermanis

    2012-01-01

    Full Text Available A leader holds an important role in the communication process.His/her way of passing information and of communication continuouslyinfluences the employees as it streams their behaviour and buildsmutual trust. The purpose of this article is to show the development ofcommunication and leading competences for mid-level leaders. Furthermore,the article defines specific competences and their importancefor the efficient management of staff. 152 mid-level leaders workingfor an automotive company – a worldwide automotive supplier –were involved in the research. They completed the education programmefor mid-level leaders. Descriptive statistical techniques and factoranalysis were used for data processing.

  9. Angiographyc and intraoperative assessment of the blood flow in infrainguinal arterial reconstruction; Angiografska i intraoperativna itsenka na kryvotoka pri arterialni rekonstruktsii pod ingvinalniya ligament

    Energy Technology Data Exchange (ETDEWEB)

    Cheshmedzhiev, M; Jordanov, E; Yordanov, M; Kovacheva, N [Department of Vascular Surgery, University Hospital St. Marina, Varna (Bulgaria); Velinov, T [Department of Diagnostic Imaging, University Hospital St. Marina, Varna (Bulgaria)

    2011-07-01

    The aim of this study is to define the practical application of the modified system for angiographic assessment of the run-off arteries after reconstruction below the inguinal ligament suggested by Schwierz T. 137 patients with infrainguinal arterial reconstructions were followed up for a period of 1 year. The blood volume was measured distally from the distal graft anastomosis by means of flow meter (VeriQ, Medistim, Oslo, Norway). The flowmetry was performed before and after a 5-minute Prostavasin or llomedin intragraft infusion, causing peripheral vasodilatation. The data was compared with the minimal expected debit which was assessed according to the Schwirz system. During the follow up period in the group of the non properly functioning bypasses we registered lack of coincidence in 37% between the preoperatively assessed and the intraoperatively measured minimal blood flow concerning the compromised bypasses. In the group of the properly functioning bypasses the lack of coincidence was only 6% probably due to subjective false assessment of minor collaterals. Taking into consideration the subjective pattern of the angiographic assessment system and the importance of the high quality angiographic imaging we believe that the preoperatively assessed expected blood flow is not applicable in means of long term prognosis but may be used as an additional indicator for the condition of the run-off arteries as well as the short term results of the operative treatment.

  10. Thermostimulated luminescence in KBr-In crystals after optical creation of electronic excitation. Termostimulirovannaya lyuminestsentsiya v kristallakh KBr-In pri opticheskom sozdanii ehlektronnykh vozbuzhdenij

    Energy Technology Data Exchange (ETDEWEB)

    Popov, A I [AN Latvijskoj SSR, Riga (USSR). Inst. Fiziki

    1990-01-01

    Thermal stability of the radiation defects produced in KBr-In by optical creation of the electronic excitation (optical creation of the excitons or optical ionization of In{sup +}-ions under C-band illumination) is investigated by the method of thermostimulated luminescence (TSL). A method of detection of prehistory defects, when the optical ionization of In{sup +}-ions and TSL are performed, is proposed. Quadratic dependence of V{sub 2}-center creation upon dose is shown. This dependence confirms assocative mechanism of the creation of V{sub 2}-centers from two interstitial centers.

  11. Naravovarstveniki ali privrženci modnih smernic? Kaj od narodnih parkov v Republiki Makedoniji pričakujejo mestni prebivalci?

    Directory of Open Access Journals (Sweden)

    Martin Čihař

    2009-01-01

    Full Text Available Ta prispevek se ukvarja s tem, kako mestni prebivalci dojemajo upravljanje okolja in varovanje okolja v narodnih parkih, zlasti v Jugovzhodni Evropi, in kakšen odnos imajo do teh vprašanj. Dejavniki, ki sodobne turiste spodbujajo k obisku narodnih parkov, pogosto niso jasni. Sodobne družboslovne raziskave se jim ne posvečajo dovolj. Zato smo preučili profil in potrebe urbanih obiskovalcev narodnega parka Pelister v Republiki Makedoniji. Zanimalo nas je, v kolikšni meri je njihovo zanimanje za naravne značilnosti območja pristno oziroma površno in simbolno. Izsledki so pokazali, da je zanimanje urbanih obiskovalcev predvsem površno. To razkriva potrebo po razvoju učinkovite strategije za odnos do obiskovalcev, ki bo sestavni del splošnega upravljanja narodnih parkov.

  12. Large time asymptotics of solutions of the equations of principal chiral field. Asimptoticheskoe povedenie reshenij uravneniya glavnogo kiral'nogo polya pri bol'shikh vremenakh

    Energy Technology Data Exchange (ETDEWEB)

    Sukhanov, V V [Leningradskij Gosudarstvennyj Univ., Leningrad (USSR)

    1990-07-01

    Asymptotic behaviour of solutions of the equations of principal chiral field when one of the arguments tends to infinity is investigated. Asymptotics of solutions of the corresponding spectral problem is investigated as well. explicit formulas are constructed which connect the coefficients of the asymptotic decomposition of the potential with the data of the corresponding inverse problem by means of a birational transformation.

  13. Prepravné a logistické riešenia pri prevoze lyží z USA

    OpenAIRE

    Fraňo, Pavol

    2012-01-01

    The purpose of this thesis is introduction of Icelantic Boards, a ski producing company. This thesis will also provide information on carrier possibilities for company's export overseas and useful Incoterms conditions. In the final part, there is a close look at the company's products, on import variants and finally there are recommendations for particular type of shipping overseas, as well as possibilities for increase of sales of their products on European market.

  14. FACEBOOK IN PARTNERSKI ODNOSI: Vloga uporabe Facebooka in stilov navezanosti v partnerskih odnosih pri izražanju in doživljanju ljubosumja na Facebooku

    OpenAIRE

    Fermišek, Neja

    2017-01-01

    Popularnost Facebooka je v zadnjih nekaj letih izrazito narastla, vendar kljub temu njegov vpliv na partnerske odnose še zmeraj ostaja relativno neraziskan. Magistrsko delo ugotavlja, kako je uporaba Facebooka povezana z ljubosumjem in nadzorom partnerja na Facebooku ter z zadovoljstvom v samem partnerskem odnosu. Ker pa je romantična ljubezen proces navezanosti, se nam je prav tako zdelo pomembno, da v empiričnem delu raziščemo povezavo med različnimi stili navezanosti in ljubosumjem na Face...

  15. Elektrofiziologičeskaja aktivnost mozga pri upravlenii interfejsom mozg kompjuter, osnovannym na voobraženii dviženij

    Czech Academy of Sciences Publication Activity Database

    Frolov, A. A.; Aziatskaya, G.A.; Bobrov, P.D.; Luykmanov, R. Kh.; Húsek, Dušan; Snášel, V.

    2017-01-01

    Roč. 43, č. 5 (2017), s. 17-28 ISSN 0131-1646 Institutional support: RVO:67985807 Keywords : brain- computer interface, electroencephalogram, motor imagery, EEG rhythm synchronization and desynchronization, Independent Component Analysis, neurorehabilitaiton. Subject RIV: IN - Informatics, Computer Science OBOR OECD: Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

  16. Report on nuclear safety on the operation of nuclear facilities in 1989; Porocilo o jedrski varnosti pri obratovanju jedrskih objektov v letu 1989

    Energy Technology Data Exchange (ETDEWEB)

    Gregoric, M; Levstek, M F; Horvat, D; Kocuvan, M; Cresnar, N [Slovenian Nuclear Safety Administration, Ljubljana (Slovenia)

    1990-07-01

    Currently Yugoslavia has one 632 MWe nuclear power plant (NPP) of PWR design, located at Krsko in the Socialist Republic (SR) of Slovenia. Krsko NPP, which is a two-loop plant, started power operation in 1981. In general, reactor safety activities in the SR of Slovenia are mostly related to upgrading the safety of our Krsko NPP and to developing capabilities for use in future units. This report presents the nuclear safety related legislation and organization of the corresponding regulatory body, and the activities related to nuclear safety of the participating organizations in the SR of Slovenia in 1989.

  17. Ag-tellurides at the site Treibolc near the village Hodrusa-Hamre; Ag-teluridy na lokalite Treibolc pri obci Hodrusa-Hamre

    Energy Technology Data Exchange (ETDEWEB)

    Kozak, J [Univerzita Komenskeho v Bratislave, Prirodovedecka fakulta, Katedra mineralogie a petrologie, 84215 Bratislava (Slovakia)

    2012-04-25

    Ag-tellurides were described in association with galenite, sphalerite, chalcopyrite and bornite samples during examining hydrothermal mineralization of Stiavnica stratovolcano (Hodrusa-Hamre settlement) in heavily silicified sediments of Permian age. They were found and confirmed by WDS analysis. Their presence on the site is very unique with no economic use. Paragenesis originated at 250-270 grad C in the presence of fluid and zero salinity. (authors)

  18. Dispersion Curves for Phonons in Diamond; Courbes de Dispersion des Phonons dans le Diamant; Krivye dispersii dlya fononov v almaze; Curvas de Dispersion de los Fonones en el Diamante

    Energy Technology Data Exchange (ETDEWEB)

    Warren, J. L.; Wenzel, R. G.; Yarnell, J. L. [Los Alamos Scientific Laboratory, Los Alamos, NM (United States)

    1965-04-15

    recien mencionados, la tienen menos en el caso del diamante. (author) [Russian] Trehosnyj difrakcionnyj spektrometr nejtronov na Losalamosskom reaktore ''Omega Vest'' ispol'zovalsja dlja izmerenija nekotoryh krivyh dispersii dlja rasprostranenija fononov v napravlenijah [100] i [111] v almaze . Vse iz merenija provodilis' pri komnatnoj temperature. Obrazec predstavljal soboj korichnevyj promyshlennyj almaz tipa Na vesom 242,8 karat (48,56 grammov). Izuchenie javlenij difrakcii nejtronov pokazalo, chto almaz sostoit iz bol'shogo edinichnogo kristalla s mozaichnym razbrosom v razmere M Degree-Sign polnoj shiriny pri polumaksimume, pljus dvumja nebol'shimi oblastjami, razorientirovannymi na 3 - 5 Degree-Sign . Spektrometr programmirovalsja dlja operacii ''postojannaja''. Vo vseh sluchajah jenergija padajushhih nejtronov byla postojannoj, i rassejannye nejtrony terjali jenergiju. Dostatochnaja intensivnost' pri jenergii bombardirovki, dostatochno bol'shoj dlja vozbuzhdenija opticheskih form almaza, byla dostignuta v rezul'tate ispol'zovanija otrazhenija (1122) berillievogo monohromatora. K trudnostjam provedenija jeksperimentov, pomimo trudnostej, voznikajushhih v svjazi s nalichiem ochen' vysokih chastot fononov v almaze, otnositsja vozniknovenie anomal'nyh pikov, chto zatrudnjaet raspoznavanie tochek poljarizacii. Schitaetsja, chto neopredelennosti v izmerennyh chastotah sostavljajut velichinu porjadka 2-3 procentov. Naibolee razitel'nym rezul'tatom jetih izmerenij javljaetsja podtverzhdenie predpolozhenij, osnovannyh na dannyh otnositel'no pogloshhenija infrakrasnoj oblasti spektra i otnositel'no udel'nogo tepla, chto almaz ne javljaetsja gomologom s kremniem i germaniem. Otsutstvie sootvetstvija projavljaetsja v osnovnom v povedenii poperechnyh akusticheskih vetvej, kotorye v sluchajah vyrazhenija ih v sootvetstvujushhih privedennyh edinicah po svoej chastote pochti v dva raza vyshe v almaze, chem v kremnii i germanii. Ostal'nye nabljudaemye krivye dispersii dlja almaza

  19. Studies on radiation-image detectors; Etudes sur les detecteurs a images de rayonnements; Izuchenie detektorov izobrazheniya radiatsii; Estudios sobre detectores de radiaciones productores de imagenes

    Energy Technology Data Exchange (ETDEWEB)

    Reiffel, L [Armour Research Foundation, Chicago, IL (United States)

    1962-04-15

    }mkoj raspredeleniya iskr. Pri rabote s issledovatel'skim reaktorom Armor na rezhime maloj moshchnosti za desyat' MINUT byla zasnyata kartina raspredeleniya nejtronov po Laueh; pikovyj potok aktivnoj zony sostavlyal 10{sup 11} nv, a kollimator sostoyal iz pryamoj trubki diametrom 1 X 1 cm. Opisano primenenie ehtikh schetchikov dlya drugikh nejtronnykh issledovanij s ukazaniem nailuchshej dostizhimoj razreshayushchej sposobnosti, kotoraya mozhet byt' poluchena pri men'shikh rasstoyaniyakh mezhdu ehlektrodami, ispol'zovanii dinamicheskoj razvertki, a, vozmozhno, i pri prostranstvennom fil'trovanii opticheskogo izobrazheniya. Vtorym obshchim podkhodom k obnaruzheniyu izobrazheniya, vyzyvaemogo radiatsiej, yavlyaetsya ispol'zovanie v preobrazovatele lyuminestsiruyushchikh i fosforestsiruyushchikh ehkranov. V nastoyashchee vremya ispytyvayutsya matritsy lyuminestsiruyushchikh volokon, sostoyashchikh iz ves'ma tonkikh steklyannykh trubok, napolnennykh stsintillyatsionnoj zhidkost'yu. EHti matritsy oka- zyvayutsya poleznymi pri obnaruzhenii rentgenovskikh luchej i gamma-izluchenij; dlya polucheniya chuvstvitel'nosti k nejtronam MOGUT ''zaryazhat'sya'' libo materialy stenok, libo soderzhashchayasya vnutri trubok zhidkost'. BUDUT izlozheny novye metody vyrabotki lyuminestsiruyushchikh voloknistykh ehkranov razlichnogo tipa s ukazaniem ikh opticheskikh svojstv, chto takzhe tesno svyazano s tekhnologiej stsintillyatsionnykh kamer. BUDUT kratko obsuzhdeny vozmozhnosti postrojki vosproizvodyashchikh izobrazheniya detektorov s ispol'zovaniem tolstykh blokov materiala, sposobnykh khranit' znachitel'nyj zapas ehnergii i vyzyvat' fosforestsentsiyu pri ikh obluchenii; budut takzhe opisany metody otscheta pokazanij pri pomoshchi opticheskoj razvertki luchej dlya ustraneniya poter' v razreshayushchej sposobnosti iz-za konechnoj tolshchiny lyuminofora. (author)

  20. Calculation of the Inelastic Scattering of Neutrons from Polyethylene and Water; Calcul de la diffusion inelastique des neutrons par le polyethylene et l'eau; Raschet neuprugogo rasseyaniya nejtronov poliehtilenom i vodoj; Calculo de la dispersion inelastica de neutrones por polietileno y agua

    Energy Technology Data Exchange (ETDEWEB)

    Goldman, D T; Federighi, F D [Knolls Atomic Power Laboratory, General Electric Company, Schenectady, NY (United States)

    1963-01-15

    A model for the calculation of the scattering of thermal neutrons from chemical system was proposed by Nelkin. This model considered the actual dynamics of the scattering system as composed of a set of oscillatory motions, each describable by a Hamiltonian which commuted with each of the others. It was then possible to express the differential scattering cross-section in closed form. This model has been used to calculate the scattering of neutrons by water. Some care must be taken in performing the numerical integration over angle and energy. The scattering model has been extended to the calculation of neutron scattering from polyethylene C{sub n}H{sub 2n}. Analogous levels of polyethylene can be noted at 0.089 eV, 0.182 eV, 0.354 eV, and 0.533 eV. The differential and total cross-sections have been calculated for the scattering and the latter has been seen to be in reasonable agreement with experiment at room temperature. Scattering kernels have been calculated for a number of temperatures and where possible the results have been compared with experiment. In addition, neutron flux spectra and diffusion lengths have been calculated using the equations of reactor physics. Comparison of these Results with experimental data indicates that such integral measurements are indicative of at least the gross features of the scattering system and should be analysed in conduction with the detailed differential cross-section results. (author) [French] Nelkin a propose un modele pour calculer la diffusion de neutrons thermiques dans des systemes chimiques. Dans ce mod and le on considere que la dynamique reelle du systeme de diffusion se compose d'un ensemble de mouvements oscillatoires, chaque mouvement pouvant 6tre decrit par un hamiltonien commutant avec chacun des autres. Il est alors possible d'exprimer la section efficace differentielle de diffusion sous une forme fermee. Les auteurs ont employe ce modele pour calculer la diffusion des neutrons par l'eau. Il faut prendre quelques precautions lorsque l'on fait l'integration numerique par rapport aux angles et aux energies. Le modele de diffusion a ete etendu aux calculs de la diffusion des neutrons par le polyethylene C{sub n}H{sub 2n}. On note des niveaux analogues a 0,089 eV, 0,182 eV, 0,354 eV et 0,533 eV. Les auteurs ont calcule les sections efficaces diffe- rentielle et totale pour la diffusion et ils ont constate que la seconde est en bon accord avec l'experience a la temperature du laboratoire. Ils ont calcule des noyaux de diffusion pour un certain nombre de temperatures et, chaque fois qu'il etait possible de le faire, ils ont compare les resultats aux experiences. De plus, ils ont calcule les spectres de flux de neutrons et les longueuts de diffusion en se fondant sur les equations de la physique des reacteurs. En comparant ces resultats et les donnees experimentales, on constate que ces mesures integrales donnent au moins des indications generales sur les caracteristiques du systeme de diffusion et qu'il conviendrait de les analyser en tenant compte des resultats detailles relatifs aux sections efficaces different tielles. (author) [Spanish] Nelkin propuso un modelo para calcular la dispersion de neutrones termicos por sistemas quimicos. Con arreglo a este modelo, la dinamica real del sistema dispersante se consideraba compuesta por una serie de movimientos oscilatorios cada uno de los cuales podia describirse por un hamiltoniano que conmuta con los hamiltonianos de los otros movimientos oscilatorios. Ello permitiria; expresar la seccion eficaz diferencial de dispersion en forma cerrada. Los autores han utilizado este modelo para calcular la dispersion de neutrones por el agua. Debe procederse con cierto cuidado al efectuar la integracion numerica respecto del angulo y de la energia. El modelo sella utilizado tambien para calcular la dispersion de neutrones por polietileno (C{sub n}H{sub 2n}). A 0,089 eV, 0,182 eV, 0.354 eV y 0,533 eV, se observan niveles analogos en el polietileno. Se ha calculado la seccion eficaz dife- rencial y total de dispersion y la ultima parece concordar satisfactoriamente con los resultados de experimentos realizados a temperatura ambiente. Se han.calculado los nucleos de dispersion para varias temperaturas y, cuando es posible, los resultados se comparan con los de los experimentos. Ademas se han calculado los espectros de nujo neutronico y las longitudes de difusion utilizando para ello las ecuaciones de fisica de reactores. La comparacion de estos resultados con los datos experimentales muestra que tales mediciones integrales constituyen por lo menos un indice de las caracteristicas generales del sistema dispersante y deben analizarse conjuntamente con los resultados detallados relativos a Ies secciones eficaces diferenciales. (author)

  1. Small-Angle Scattering of Neutrons by Iron and Nickel Close to the Curie Point; Diffusion aux petits angles des neutrons par le fer et le nickel au voisinage du point de curie; Rasseyanie nejtronov pod malymi uglami zhelezom i nikelem, blizkikh k tochke kyuri; Dispersion de neutrones en angulos pequenos por el hierro y el niquel cerca del punto de curie

    Energy Technology Data Exchange (ETDEWEB)

    Jacrot, B.; Konstantinovic, J.; Parette, G.; Cribier, D. [Centre d' etudes Nucleaires de Saclay (France)

    1963-01-15

    Recent studies on critical scattering by iron have thrown fresh light on the results obtained previously and shown that: (1) At the Curie point, scattering is inelastic. The Lorentzian form of the lines and their angular dependence establish the existence of a scattering process having the diffusion coefficient 2m {Omega}/n = 7. (2) At the Curie point, the coefficient K{sub 1}{sup 2} is less than 5 x 10{sup -5} A{sup -2}. Iron and nickel have very different angular distribution. Small-angle scattering below T{sub c} has also been studied. (author) [French] De nouveaux travaux sur la diffusion critique par le fer ont permis de completer les resultats obtenus anterieurement. Ils etablissent les faits suivants: 1. Au point de Curie la diffusion est inelastique. La forme lorentzienne des raies et leur dependance angulaire etablissent l'existence d*un processus de diffusion avec un coefficient de diffusion 2m{Omega}/n = 7. 2. Au point de Curie le coefficient K{sub 1}{sup 2} est inferieur a 5 x 10{sup -5} A{sup -2}. La distribution angulaire est tres differente dans le cas du fer et du nickel. On a egalement etudie la diffusion aux petits angles en dessous de T{sub c}. (author) [Spanish] Nuevos trabajos sobre la dispersion critica por el hierro han permitido completar los resultados obtenidos anteriormente. Dichos trabajos prueban los hechos siguientes: 1) La dispersion es inelastica en el punto de Curie. La forma lorentziana de las rayas y su dependencia angular demuestran la existencia de un proceso de dispersion con un coeficiente de dispersion igual a 2m {Omega}/n = 7. 2) En el punto de Curie, el coeficiente K{sub 1}{sup 2} es inferior a 5 x 10{sup -5} A{sup -2}. La distribucion angular es muy diferente en el caso del hierro y del ni quel. Se ha estudiado tambien la dispersion en pequenos angulos por debajo de T{sub c}. (author)

  2. Neutron-Phonon Interaction Studies in Copper, Zinc and Magnesium Single Crystals; Etude des interactions neutron-phonon dans des monocristaux de cuivre, de zinc et de magnesium; Izuchenie vzaimodejstviya nejtronov i fononov v monokristallakh medi, ninki i magniya; Estudio de las interacciones neutron-fonon en monocristales de cobre, cinc y magnesio

    Energy Technology Data Exchange (ETDEWEB)

    Maliszewski, E.; Sosnowski, J.; Blinowski, K.; Kozubowski, J.; Padlo, L.; Sledziewska, D. [Institute of Nuclear Research, Warsaw (Poland)

    1963-01-15

    The phonon dispersion relations in copper single crystals has been studied by means of a triple-axis crystal neutron spectrometer. In the [100] direction the transversal branch, not reported in the papers of Cabie and Jacrot, has been found. This branch fits well to the recent data of sound velocity; however, it differs partly from the X-ray results of Jacobsen. For the longitudinal branch in the [100] direction the dispersion curve obtained by Cribier and Jacrot is lying well above the Jacobsen's curve, and the experimental points reported in the present paper support the results of Cribier and Jacrot. The phonon dispersion relations in zinc and magnesium single crystals has been studied using the cold neutron method and by means of a triple-axis crystal neutron spectrometer as well. The scattering surfaces in the [1010] plane were traced, the AT and AL branches found and the phonon dispersion relations in the [001] and [010] directions obtained. The results have been compared with those obtained by Johnson with X-rays. In the [001] direction the present results fit well lo Johnson's foe the AL branch. In the [010] direction for the AT branch a large discrepancy has been found between Johnson's and the present results. Some explanation of this discrepancy is given. Similar measurements in the same directions in magnesium single crystals are under way and will be reported. (author) [French] Les auteurs ont etudie les relations de dispersion des phonons dans des monocristaux de cuivre, au moyen d'un spectrometre neutronique a cristal triaxe. Ils ont trouve, dans la direction [100] , la branche transversale que n'ont pas signalee Cribier et Jacrot dans leurs travaux. Cette branche s'adapce bien aux donnees recentes relatives a la vitesse du son, mais elle differe partiellement de celles qui ont ete obtenues par Jacobsen pour les rayons X . En ce qui concerne la branche longitudinale dans la direction [100] , la courbe de dispersion obtenue par Cribier et Jacrot se trouve nettement au-dessus de la courbe de Jacobsen et les points experimentaux signales dans le present memoire confirment les resultats de Cribier er de Jacrot. Les relations de dispersion des phonons dans des monocristaux de zinc et de magnesium ont ete etudiees a l'aide de la methode des neutrons froids et d'un spectrometre neutronique a cristal triaxe, Les auteurs ont trace les surfaces de diffusion dans le plan [1010], trouve les branches AT et AL ainsi que les relations de dispersion des phonons dans les directions [001] et [010] . Us ont compare ces resultats a ceux qu'a obtenus Johnson avec des rayons X . Dans la direction [001] , les resultats s'adaptent bien a la courbe de Johnson en ce qui concerne la branche AL. Dans la direction [010] , pour la branche AT, les auteurs observent un grand ecart entre leurs resultats et ceux de Johnson. 11s en donnent une explication. Ils decrivent des mesures semblables faites a l'heure actuelle dans les memes directions, dans des monocristaux de magnesium. (author) [Spanish] Los autores han estudiado las relaciones de dispersion de fonones en monocristales de cobre con ayuda de un espectrometro neutronico triaxial. En la direccion 100 han observado la rama transversal, no mencionada en las memorias de Cribier y Jacrot. Esta rama concuerda satisfactoriamente con los datos recientes relativos a la velocidad del sonido, pero difiere en parte de los resultados roentgenograncos obtenidos por Jacobsen. En cuanto a la rama longitudinal en la direccion 100, la curva de dispersion obtenida por Cribier y Jacrot se encuentra netamente por encima de la curva de Jacobsen y los puntos experimentales a que se refiere la presente memoria connrman los resultados de Cribier y Jacrot. Los autores han estudiado las relaciones de dispersion de fonones en monocristales de cinc y magnesio por el procedimiento de los neutrones frios, utilizando ademas un espectrometro neutronico triaxial. Han determinado las superficies de dispersion en el plano 1010. observado las ramas AT y AL y obtenido las relacio- nes de dispersion de fonones en las direcciones 001 y 010 .Han comparado esos resultado? con los datos roentgenograneos por Johnson. En la direccion 001, los resultados de los autores concuerdan satisfactoriamente con los obtenidos por Johnson para la rama AL. En la direccion 010 han observado en el caso de la rama AT una discrepancia considerable entre los resultados de Johnson y los propios. Los autores explican parcialmente dicha discrepancia; en la actualidad estan efectuando mediciones analogas en las mismas direcciones en monocristales de magnesio, y presentaran datos al respecto. (author)

  3. PRI 8.1: CARNOT. Analysis and research community of the new orientations of the thermodynamics. Activity report june 2002/ june 2004; PRI 8.1: CARNOT. Communaute d'Analyse et de Recherche des Nouvelles Orientations de la Thermodynamique. Rapport d'activite juin 2002/ juin 2004

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    This progress report takes stock on the CARNOT project. This project aims to standardize the different approaches or identify the application fields of each thermodynamical methodology. The cycles analysis and more generally thermodynamical machines (design, energy efficiency, new energy utilization concepts). The environmental impact is also an important topic of the project. (A.L.B.)

  4. Pri svete vetra : Tjomnõi tunnel; Kogda-to na jarmarke; Daljoki, zabõtõi...; 'Hriplõi...'; Grustnaja pessenka; Bõla bõ metla...; Kannel; 'Pri svete vetra...'; Odnazhdõ; 'Kipariss...'; 'Na starom kostrisht'e...'; 'Vot spjashtshaja ja...'; 'Ser�

    Index Scriptorium Estoniae

    Vaarandi, Debora, 1916-2007

    1996-01-01

    Orig.: Tume tunnel; Vana laadalugu; Kauge unustatud; "See on..."; Kurb lauluke; Luuata; Kandlemängija; "Tuule valgel..."; Üks; "Küpress..."; "Magan tormis mis mujal..."; "Ööliblikaid halle ja maokaid..."; "naised on need..."; "Krestomaatsed luuletused..."; Sisevaade

  5. Suitability of Cadmium Tantalate and Indium Tantalate as Control Materials for High-Temperature Reactors; Le Tantalate de Cadmium et le Tantalate d'Indium Comme Absorbants pour les Reacteurs a Haute Temperature; Vozmozhnosti ispol'zovaniya tantalatov kadmiya i indiya v kachestve kontrol'nogo materiala dlya vysokotemperaturnykh reaktorov; Empleo del Tantalato de Cadmio y del Tantalato de Indio Como Materiales de Control Para Reactores de Alta Temperatura

    Energy Technology Data Exchange (ETDEWEB)

    Preisler, E.; Haessner, F.; Petzow, G. [Max-Planck-Institut fuer Metallforschung, Stuttgart, Federal Republic of Germany (Germany)

    1964-06-15

    jenergii; b) vysokoj sposobnost'ju pogloshhenija nejtronov; v) maloj chuvstvitel'nost'ju k radiacionnomu povrezhdeniju; g ) horoshej teploustojchivost'ju;' ' d) maloj reaktivnost'ju s okruzhajushhej sredoj; e ) dolzhny byt' deshevymi i legko dostupnymi. Prinimaja vo vnimanie jeti soobrazhenija i prenebregaja pomehami reakcij p ,a , v pervuju ochered' sleduet rassmotret' sledujushhie jelementy: kadmij, vol'fram, indij i tantal. Ves'ma vazhno ob{sup e}dinit' horoshij poglotitel' teplovyh nejtronov s horoshim poglotitelem jepiteplovyh nejtronov s tem, chtoby poluchennyj takim obrazom material byl teploustojchivym ( Greater-Than-Or-Equivalent-To 700 Degree-Sign C) . Dlja jetogo mogut byt' ispol'zovany dvuokisi CdWO{sub 4}, Cd {sub 2}Ta{sub 2}O{sub 7} i CdIn{sub 2}O{sub 2}. Sredi nih naibolee vysokoustojchivym javljaetsja tantalat kadmija. Drugoj dvuokis'ju, predstavljajushhej v soedinenii s tantalatom kadmija blagoprijatnyj spektr pogloshhenija nejtronov, javljaetsja tantalat indija. Pri jetom on o bl ada et i horoshej teploustojchivost'ju. Tak kak keramicheskim pogloshhajushhim materialam forma pridaetsja putem plasticheskoj deformacii, oni chasto ispol'zujutsja v vide kermetov. Pojetomu oni dolzhny byt' sovmestimy s metallami. Tantalat kadmija sovmestim s serebrom, s med'ju i do 7 00 Degree-Sign S, s nikelem; tantalat indija polnost'ju sovmestim s serebrom, med'ju i nikelem i do 700 Degree-Sign S, s molibdenom i do nekotoroj stepeni s zh e l e zom . Jeti rezul'taty sootvetstvujut vychislenijam termodinamiki . Dlja togo, chtoby ocenit' povedenie pogloshhajushhih materialov v uslovijah reaktora, neobhodimo prinjat' vo vnimanie dochernie produkty pogloshhenija nejtronov. Kadmij-113 prevrashhaetsja v stabil'nyj kadmij-114, togda kak tantal prevrashhaetsja v vol'fram, a indij - v olovo. Oba dochernih produkta mogut zaderzhat' v svoih naibolee prochnyh sostojanijah v a lentnosti bol'shee kolichestvo kisloroda, chem ishodnye jelementy. Pojetomu mozhno ozhidat' vosstanovlenija Cd

  6. Nuclear Accident Dosimetry at Argonne National Laboratory; Dosimetrie dans les Cas d'Accidents Nucleaires au Laboratoire National d'Argonne; 0421 041b 0423 0416 0411 0410 0414 ; Dosimetria en Casos de Accidente Nuclear en el Laboratorio Nacional de Argonne

    Energy Technology Data Exchange (ETDEWEB)

    Anderson, L. L.; Duffy, T. L.; Sedlet, J.; O' Neil, D. P. [Argonne National Laboratory, Argonne, IL (United States)

    1965-06-15

    propuesto metodos para valorar el ftisforo-32 en materiales biologicos con el fin de obtener la dosis de neutrones rapidos, analizar los productos de activacion neutronica en las sustancias de que se compone el medio ambiente, y determinar el numero total de fisiones. El control administrativo de las operaciones dosimetricas se vera facilitado por el empleo de un manual que enumera el emplazamiento de los dosimetros, la manera de manejarlos y los procedimientos de recuento, e indica las formulas que se han de utilizar en el calculo de las dosis. (author) [Russian] V doklade obobshhaetsja problema tekushhego planirovanija v Argonskoj nacional'noj laboratorii v otnoshenii opredelenija dozy obluchenija posle avarijnoj kritichnosti. Obsuzhdenie svjazano v osnovnom s dvumja tipami izgotovljaemyh promyshlennost'ju kompaktnyh dozimetricheskih ustrojstJo i vkljuchaet rezul'taty provedennyh nezavisimo kolibrovanij, vypolnennyh v laboratorii. V pervichnuju dozimetricheskuju sistemu vkljuchajutsja porogovye detektory, razrabotannye v Okridzhskoj nacional'noj laboratorii dlja izmerenija spektrov nejtronov. Jeksperimental'no vyvedeny kalibrovochnye krivye raspada fol'gi iz deljashhegosja materiala dlja postojanno ispol'zuemogo v Argone scintilljacionnogo schetnogo oborudovanija. Jeto oborudovanie kalibrovano takzhe dlja opredelenija aktivnosti natrija-24 v krovi. Dozimetricheskie bloki razrabotannogo v laboratorii Savanna River tipa ispol'zujutsja v kachjostve vtorichnyh stancij. Dannye, postupajushhie ot komponentov jetih blokov, svjazannyh s aktivaciej nejtronami, budut ispol'zovat'sja dlja vnesenija izmenenij v nejtronnyj spektr dlja promezhutochnyh, a takzhe teplovyh znachenij jenergii. Zakadmievaja aktivacija mednoj fol'gi pri dannom znachenii nejtronov promezhutochnoj jenergii okazalas' sravnitel'no nechuvstvitel'noj k izmenenijam v nejtronnom spektre v jetoj oblasti. Byla opredelena znachimaja srednjaja velichina poperechnogo sechenija medi. Kojefficienty kalibrovanija schetchika

  7. Electronic methods for discriminating scintillation shapes; Methodes electroniques de discrimination des formes des impulsions issues de scintillateurs; Ehlektronnye metody diskriminatsii form stsintillyatsii; Metodos electronicos de discriminacion de forma de impulsos de centelleo

    Energy Technology Data Exchange (ETDEWEB)

    Forte, M; Konsta, A; Maranzana, C [European Atomic Energy Community, CCR, ISPRA (Italy)

    1962-04-15

    hasta impulsos debiles, de unas cuantas decenas de fotoelectrones, y la discriminacion de fragmentos emitidos por captura neutronica en liquidos conteniendo boro. Algunas de estas redes fueron capaces de operar con impulsos de la misma polaridad emitidos por dos de los ultimos dinodos, incluso con la salida de un solo electrodo. Ello puede ser util cuando conviene emplear el anodo independientemente, por ejemplo, para sincronizacion. (author) [Russian] Kak uzhe soobshchalos' ran'she, forma stsintillyatsionnogo impul'sa, kharakterizuyushchaya tip vozbuzhdayushchej chastitsy (ehlektron, proton, al'fa i t.d.), mozhet byt' prevrashchena v nezavisimyj ot amplitudy impul'sa parametr. EHto pozvolyaet vyyavit' posredstvom mnogokanal'nogo analizatora sostav vozbuzhdayushchego stsintillyator puchka so smeshannymi chastitsami. EHtot metod byl uspeshno primenen k neskol'kim stsintillyatoram kak organicheskogo, tak i neorganicheskogo tipa. Privodyatsya detali ehlektronnykh metodik, ispol'zovannykh dlya preobrazovaniya formy impul'sov. Dlya bolee prostykh sluchaev diskriminatsii tol'ko mezhdu dvumya vidami impul'sov (naprimer, diskriminatsiya nejtronov ot gamma-izluchenij) rassmatrivalas' takzhe vozmozhnost' ispol'zovaniya passivnykh skhem, predstavlyayushchikhsya perspektivnymi dlya dal'nejshikh usovershenstvovanij i uproshchenij. Bylo isprobovano neskol'ko skhem, glavnym rezul'tatom chego bylo to, chto pri nalichii fona gamma-izlucheniya udalos' rasprostranit' diskriminatsiyu protonov otdachi v zhidkikh stsintillyatorakh na malye impul'sy vsego lish' v neskol'ko desyatkov fotoehlektronov, a takzhe dobit'sya diskriminatsii oskolkov zakhvata nejtronov v soderzhashchikh bor zhidkostyakh. Nekotorye iz ehtikh skhem byli prednaznacheny dlya raboty s impul'sami odinakovoj polyarnosti, podavaemymi dvumya poslednimi ehlektrodami umnozhitelya, ili dazhe s vykhodnymi impul'sami odnogo lish' ehlektroda. EHto mozhet okazat'sya poleznym pri nezavisimom ispol'zovanii anoda, naprimer, dlya

  8. Operating Experience with the VERA Zero-Energy Fast Reactor; Fonctionnement du Reacteur VERA a Neutrons Rapides, de Puissance Zero; Opyt ehkspluatatsii reaktora VERA na bystrykh nejtronakh nulevoj moshchnosti; Experiencia Adquirida con el Reactor Rapido VERA de Potencia Nula

    Energy Technology Data Exchange (ETDEWEB)

    Weale, J. W.; McTaggart, M. H.; Goodfellow, H.; Paterson, W. J. [Atomic Weapons Research Establishment, Aldermaston (United Kingdom)

    1964-02-15

    , intensidad de la fuente neutronica, empleo de un acelerador para producir neutrones; velocidad de respuesta de los circuitos de seguridad y restricciones subsiguientes en lo que atafle a la velocidad con que se pueden unir las dos mitados; precauciones adicionales necesarias al utilizar plutonio como combustible; notas sobre la precision de las mediciones de reactividad y sobre las limitaciones practicas que afectan a otras mediciones relacionadas con la fisica de los reactores. (author) [Russian] Daetsja kratkoe opisanie konstrukcii reaktora na bystryh nejtronah nule- voj moshhnosti, sostojashhego iz dvuh odinakovyh chastej. Pri jetom osoboe vnimanie udeljaetsja tem chertam, kotorye opredeljajut praktichnost' i obespechivajut tochnost' izmerenij po fizi- ke reaktorov. Obsuzhdajutsja preimushhestva i nedostatki konstrukcii s ssylkoj na dvuhlet- nij opyt jekspluatacii reaktora. Rassmatrivajutsja sledujushhie temy:prisposoblennost' proekta i konstrkcii iz dvuh odinakovyh chastej dlja provedenija jeksperimental'nyh issle- dovanij; razmer i kachestvo obrabotki toplivnyh blokov i tochnost' razmeshhenija toplivnyh jelementov; vlijanie granichnyh neravnomernostej i geterogennosti struktury na tochnost' opredelenija kriticheskoj massy ''ideal'noj'' jekvivalentnoj sborki; vosproizvodimost' kri- ticheskogo uslovija posle demontirovanija sborki ili razdelenija dvuh chastej; izmenenie reak- tivnosti s razdeleniem chastej, v tom chisle vlijanie nesimmetrichnoj zagruzki;chuvstvitel'- nost' razlichnyh schetchikov, moshhnost' istochnika nejtronov, ispol'zovanie istochnika uskorennyh nejtronov; bystrota otvetnoj reakcii konturov avarijnoj zashhity i posledujushhie ogranichenija skorosti sobiranija chastej; dopolnitel'nye predupreditel'nye mery, neobho- dimye pri ispol'zovanii plutonija; primechanija otnositel'no tochnosti izmerenija reaktiv- nosti i otnositel'no prakticheskih ogranichenij, vlijajushhih na razlichnye drugie izmerenija po fizike reaktorov. (author)

  9. Recent Measurements of the Scattering Laws of Some Hydrogenous Moderators; Determination des Lois de Diffusion de Plusieurs Ralentisseurs Hydrogenes; 0423 0421 0422 0410 041d 041e 0412 041b 0415 041d 0418 0415 0417 0410 041a 041e 041d 041e 0412 0420 0410 0421 0421 0415 042f 041d 0418 042f 041d 0410 041d 0415 041a 041e 0422 041e 0420 042b 0425 0412 041e 0414 041e 0420 041e 0414 0421 041e 0414 0415 0420 0416 0410 0429 0418 0425 0417 0410 041c 0415 0414 041b 0418 0422 0415 041b 042f 0425 ; Recientes Comprobaciones de las Leyes de Dispersion en Algunos Moderadores Hidro Genados

    Energy Technology Data Exchange (ETDEWEB)

    Glaeser, W.; Ehret, G.; Merkel, A. [Institut fuer Angewandte Kernphysik, Kernforschungszentrum Karlsruhe, Federal Republic of Germany (Germany)

    1965-06-15

    -Nelkin y a la teoria perfeccionada de Griffing. (author) [Russian] Ustanovlenie zakonov rassejanija na vodorodsoderzhashhih materialah imeet bol'shoe znachenie kak dlja luchshego ponimanija termalizacii nejtronov v takih zamedliteljah, tak i dlja ponimanija fizicheskih osnov dinamicheskogo povedenija takih sistem. S pomoshh'ju metoda izmerenija po vremeni proleta (vrashhajushhijsja kristall) byli izmereny dvojnye differencial'nye sechenija rassejanija dlja benzola, cirkonievogo gidrida i parov obychnoj vody. Jeti izmerenija byli osushhestvleny pri jenergijah bombardirujushhih nejtronov ot 0,018 do 0,06 jev i pri uglah rassejanija mezhdu 20 i 140 Degree-Sign . Izmerennye velichiny Q ohvatyvajut diapazon ot 0 do 15 A{sup -1} (zdes nQ - peredacha impul'sa). Dannye o zakone rassejanija byli vyvedeny iz izmerennyh poperechnyh sechenij i byli jekstrapolirovany s pomoshh'ju raschetov LEAP i ADDELT dlja poluchenija znachenij peredachi jenergii i impul'sa, kotorye nevozmozhno poluchit' neposredstvenno jeksperimental'nym putem. Metodom jekstrapoljacii byli opredeleny takzhe obobshhennye raspredelenija chastot r({beta}) dlja benzola i cirkonievogo gidrida. Rezul'taty dlja vodjanyh parov sravnivajutsja s teoreticheskimi raschetami, osnovannymi na teorii Krigera-Njelkina i na uluchshennoj teorii Griffinga. (author)

  10. Measurements of the Asymptotic Spectrum of a Multiplying Medium; Mesures du Spectre Asymptotique d'Un Milieu Multiplicateur; Izmereniya asimptoticheskogo spektra umnozhayushchej sredy; Mediciones del Espectro Asintotico en un Medio Multiplicador

    Energy Technology Data Exchange (ETDEWEB)

    Slovacek, R. E.; Cerbone, R. J.; Gaerttner, E. R.; Fullwood, R. R.; Bach, D. R. [Rensselaer Polytechnic Institute, Troy, NY (United States)

    1965-08-15

    'presenta una distribucion espacial persistente que se presta mas al analisis, los autores estiman que la tecnica de medicion del espectro asintotico aplicada a sistemas multiplicadores ha de resultar en extremo util en el estudio del problema del espectro espacial en un amplio intervalo energetico. (author) [Russian] Asimptoticheskij (po vremeni) spektr umnozhajushhej sredy predstavljaet interes ne tol'ko dlja provedenija jeksperimentov po analizu pul'sirujushhih nejtronov, no i takzhe dlja izuchenija svojstv nejtronnoj diffuzii sredy. Dlja izmerenija asimptoticheskogo nejtronnogo spektra v razmnozhajushhej sisteme razrabotan istochnik pul'sirujushhih nejtronov-mehanicheskij preryvatel'. Osushhestvleno izmerenie poverhnosti i centra (skaljara) spektra kazhdoj iz chetyreh razmnozhajushhih sistem, daetsja sravnenie s raschetami spektra. Vo vseh razmnozhajushhih sistemah v kachestve zamedlitelja ispol'zovalsja obogashhennyj uran-235 i vodorod. Dve sistemy byli izgotovleny iz toplivnyh sterzhnej, pokrytyh cirkoniem v vode; dve drugih sistemy byli izgotovleny iz smesi poroshkov UO{sub 2} i ZrO{sub 2}, dispergirovannyh v parafine. Razmery i proporcii vodoroda po otnosheniju k uranu-235 brali razlichnye s tem, chtoby raznoobrazit' absorbciju, utechku i rassejanie. Skaljarnyj spektr vyschityvali na osnovanii teorii staticheskoj diffuzii. Sovpadenija mezhdu izmerennym i skaljarnym spektrom okazyvalis' udovletvoritel'nymi, kogda dlja vychislenija spektra ispol'zovalas' izmerennaja velichina asimptoticheskoj postojannoj raspada. Najdeno, chto vyschitannyj asimptoticheskij spektr javljaetsja chrezvychajno chuvstvitel'nym k postojannoj raspada; 7%-noe izmenenie v postojannoj raspada dlja odnoj iz sistem dalo v rezul'tate 47%-noe izmenenie v teplovom sostojanii k zamedleniju otnoshenija potokov. Poverhnostnyj spektr dlja dvuh iz sistem poluchen pri ispol'zovanii dvojnogo vychislenija R1. Vychislenie poverhnostnogo spektra sovpalo s dannymi v teplovoj oblasti do 0,2 ev. Odnako pri

  11. The Control of Fast Reactors: Current Methods and Future Prospects; Controle des Reacteurs a Neutrons Rapides. Methodes Actuelles et Perspectives d'Avenir; Upravlenie reaktorami na bystrykh nejtronakh. sushchestvuyushchie metody i dal'nejshie perspektivy; Control de Reactores Rapidos: Metodos Actuales y Perspectivas

    Energy Technology Data Exchange (ETDEWEB)

    Loewenstein, W. B. [Argonne National Laboratory, IL (United States)

    1964-06-15

    efectividad de los mecanismos de control han evolucionado desde evaluaciones poco precisas hasta calculos muy fidedignos confirmados experimentalmente en conjuntos criticos. El autor describe los resultados experimentales y las tecnicas analiticas, que suelen ser seguras. Los experimentos criticos que precedieron la construccion de los actuales modelos de reactores de neutrones rapidos comprendieron muchas investigaciones sobre la efectividad de sus mecanismos de control y experimentos marginales para sistemas perfeccionados en los que el cuerpo tiene un volumen mayor. El autor cita algunos estudios analiticos provisionales de los que se puede deducir que no habra necesidad de efectuar en lo sucesivo investigaciones experimentales detalladas en maquetas. (author) [Russian] Obsuzhdajutsja prakticheskie aspekty obespechenija sootvetstvujushhej reaktivnosti dlja upravlenija reaktorami na bystryh nejtronah, kotorye sushhestvenno otlichajutsja ot analogichnyh aspektov pri osushhestvlenii kontrolja sistem teplovyh nejtronov. Jeti razlichija vyzvany glavnym obrazom blagodarja nebol'shim sechenijam na bystryh nejtronah. V sistemah na bystryh nejtronah otsutstvujut sil'nye poglotiteli nejtronov. V rezul'tate jetogo takie sil'nye poglotiteli nejtronov v teplovyh reaktorah, kak produkty raspada (naprimer He i Zt)trebujut znachitel'no men'she reaktivnosti na ih kompensaciju, chem poterja reaktivnosti, vyzvannaja deleniem i zahvatom rasshhepljajushhihsja materialov. Poskol'ku atomnye sechenija bystrogo spektra dovol'no maly po sravneniju s sechenijami dlja teplovyh nejtronov atomnaja plotnost' materiala igraet vazhnuju rol' pri vybore materialov dlja regulirujushhih sterzhnej. Opisyvajutsja sushhestvujushhie tipy kontrol'nyh mehanizmov reaktorov na bystryh nejtronah. Jeti sposoby napravleny na vozmozhnost' ispol'zovanija, tam, gde jeto priemlemo,, kontrolja za utechkoj nejtronov. Kogda takoj kontrol' prakticheski neosushhestvim, to pri menjaetsja kontrol' s pomoshh'ju peredvizhenija

  12. Delayed Neutrons and Photoneutrons from Fission Products; Neutrons Retardes et Photoneutrons Emis par des Produits de Fission; 0417 0410 041f 0410 0417 0414 042b 0412 0410 042e 0429 0418 0415 041d 0415 0419 0422 0420 041e 041d 042b 0418 0424 041e 0422 041e 041d 0415 0419 0422 0420 041e 041d 042b 041f 0420 041e 0414 0423 041a 0422 041e 0412 0414 0415 041b 0415 041d 0418 042f ; Neutrones Retardados y Fotoneutrones de los Productos de Fision

    Energy Technology Data Exchange (ETDEWEB)

    Amiel, S. [Soreq Nuclear Research Centre, Atomic Energy Commission, Yavne (Israel)

    1965-07-15

    nezavisimy ot jenergii bombardirujushhih deljashhihsja nejtronov pri jenergijah do neskol'kih Mjev. V ztom diapazone vyhody nabljudaemoj gruppy, osobenno gruppy dolgozhivushhih predshestvennikov, dostatochno horosho soglasujutsja s massoj delenija i raspredelenijami zarjada, a takzhe s raschetnoj verojatnost'ju ispuskanija nejtronov. Dal'nejshee detal'noe issledovanie predshestvennikov zapazdyvajushhih nejtronov (v chastnosti, v trudnoj oblasti korotkogo perioda poluraspada) trebuet usovershenstvovanija metodov sverhbystrogo radiohimicheskogo otdelenija predshestvennikov (ili izotopnogo razdelenija na linii), a takzhe bystroj nejtronnoj spektroskopii s vysokoj razreshajushhej sposobnost'ju i jeffektivnost'ju. Fotonejtrony, Znanie intensivnosti i spektrov gamma-luchej produktov delenija imeet bol'shoe prakticheskoe znachenie v reaktornoj tehnike, v chastnosti, chto kasaetsja jeffektov nagrevanija gamma-luchami, jekranirovanija i radiacii. Gamma-luchi s jenergiej, bol'shej chem 2,23 i 1,67 Mjev, javljajutsja prichinoj jemissii fotonejtronov iz dejterija i berillija sootvetstvenno i ochen' vazhny dlja izuchenija kinetiki tjazhelovodnyh reaktorov s zamedlitelem iz berillija. Intensivnost' ispuskanija fotonejtronoja posle delenija predstavljaet soboj slozhnyj raspad sootvetstvujushhih nuklidov, ispuskajushhih gamma-luchi v smesi iz cepochki produktov delenija. Obshhie krivye raspada fotonejtroiov iz D{sub 2}O i Be byli razdeleny na 9 grupp s periodom poluraspada v diapazone ot neskol'kih sekund do priblizitel'no 13 dnej. Kazhdaja iz jetih grupp predstavljaet soboj slozhnyj sostav nuklidov. Detal'naja informacija otnositel'no komponentov jetih grupp ochen' vazhna dlja teh reaktorov, v kotoryh mozhet imet' mesto frakcionirovannoe delenie, vlijajushhee na otnositel'nuju gruppovuju rasprostranennost'. Podobnaja informacija sushhestvuet tol'ko v otnoshenii dolgozhivushhih produktov delenija, harakteristiki i vyhod kotoryh horosho izvestny, i rezul'taty jeksperimentov soglasujutsja s

  13. Diffuse Scattering from Alloys and Disordered Systems: Experimental Techniques and Potentialities; Diffusion dans les Alliages et les Systemes Desordonnes; Methodes Experimentales et Possibilites d'Application; Diffuznoe rasseyanie na splavakh i razuporyadochennykh sistemakh. ehksperimental'nye metody i potentsial'nye vozmozhnosti; Dispersion Difusa en Aleaciones y Sistemas Desordenados; Tecnicas Experimentales y Posibilidades

    Energy Technology Data Exchange (ETDEWEB)

    Low, G. G. [Atomic Energy Research Establishment, Harwell, Berks (United Kingdom)

    1965-04-15

    la direccion de magnetizacion con respecto al vector de dispersion neutronica. De este modo, la dispersion de interes puede distinguirse de los efectos no magneticos como diferencia entre dos intensidades medidas. Un proceso que contribuye al fondo de dispersion difusa, en parte de caracter magnetico y que, por tanto, la mencionada tecnica no elimina, es la dispersion miiltiple de Bragg en un poli- cristal magnetico. Puede prevenirse utilizando una muestra monocristalina o empleando neutrones de gran longitud de onda, de forma que impidan los procesos de Bragg. En Harwell se ha construido un instrumento basado en este principio, que se utiliza para una amplia serie de mediciones en aleaciones ferromagneticas diluidas. Se examinan estos experimentos y otras novedades que cabe anticipar en la materia, entre ellas la medicion de la dispersion magnetica difusa en sales paramagneticas. El estudio de esta dispersion reviste enorme interes, pues proporciona informacion dilecta sobre la cantidad de spin transmitida por un ion magnetico a los ligandos que le rodean como resultado de la covalencia. (author) [Russian] Zadachej nastojashhej raboty javljaetsja rassmotrenie kak v principe, tak i s prakticheskoj tochki zrenija teh vidov dannyh, kotorye mozhno poluchit' v rezul'tate izuchenija neuprugogo diffuznogo rassejanija nejtronov. Vnimanie skoncentrirovano na teh sistemah, v kotoryh imeetsja razuporjadochen- noe raspolozhenie defektov, kazhdyj iz kotoryh mozhno uslovno schitat' ne podverzhennym vlijaniju drugih imejushhihsja defektov libo v rezul'tate razbavlenija, libo v rezul'tate otsutstvija zavisimosti ot okruzhenija. Pri jetih uslovijah intensivnost' rassejanija proporcional'na kvadratu modulja razlozhenija Fur'e po vozmushheniju v amplitude rassejanija, vyzvannomu defektom. Takim obrazom, dannye ob amplitude prostranstvennogo raspredelenija rassejanija defektov mogut byt' polucheny v rezul'tate vypolnenija sootvetstvujushhih izmerenij rassejanija nejtronov i

  14. The Let Distribution of Dose in Some Tissue Cylinders; Repartition de la Dose en Fonction du TLE dans Quelques Modeles Cylindriques de Tissus; Raspredelenie linejnoj peredachi ehnergii dozy v nekotorykh tkanevykh tsilindrakh; Distribucion de la Dosis en Funcion de la TLE en Algunos Modelos Cilindricos de Tejidos

    Energy Technology Data Exchange (ETDEWEB)

    Snyder, W. S. [Oak Ridge National Laboratory Oak Ridge, TN (United States)

    1964-03-15

    que simulan ratones, ratas, cobayos (conejillos de Indias), perros y seres humanos. Se admitio que esos tejidos consistian en H.C.N y O en las mismas proporciones que en el hombre standard. Las secciones eficaces aplicadas para el H se ajustan estrictamente a las especificadas en el informe BNL 325, mientras que las secciones eficaces para el O, el N y el C son las prescritas en los documentos NDA 2111-3 (Vol. A ), ORNL-2389 y NDA 12-16, respectivamente. Tambien se efectuo el calculo para el caso de un modelo irradiado con el espectro de fision modificado, utilizado por Neary. El autor aplico las distribuciones de la TLE obtenidas en esta forma, juntamente con los valores de la EBR recomendados por la CIPR, para interpretar los efectos biologicos de la irradiacion neutronica. Compara dichas distribuciones con los datos sobre los efectos biologicos de los neutrones obtenidos experimentalmente y comprueba que confirman, por lo menos en parte, las hipotesis generalmente admitidas sobre la relacion funcional entre la TLE y la EBR, por ejemplo, que la posibilidad de cura y el efecto del exigenose manifiestan esencialmente con dosis de baja TLE. Aunque estas interpretaciones poseen un caracter preliminar, la distribucion de la dosis en funcion de la TLE podra servir de base para nuevas experiencias sobre la relacion entre la TLE y la EBR. (author) [Russian] Pri nejtronnom obluchenii tkanevogo fantoma obrazujushhiesja jadra otlachi imejut nepreryvnyj spektr jenergii. Dazhe v sluchae obluchenija monojenergeticheskimi nejtronami proishodit nepreryvnoe raspredelenie jenergii dlja razlichnyh jader otdachi i, sledovatel'no, takzhe nepreryvnoe raspredelenie dozy v otnoshenii L P Je . Pri ispol'zovanii programmy tipa Monte-Karlo dlja kontroliruemogo schetno-vychislitel'nogo ustrojstva 1604 vychisljalsja spektr L P Je dozy puchka monojenergeticheskih nejtronov dlja tkanevyh cilindrov, imitirujushhih mysh', krysu, morskuju svinku, sobaku i cheloveka. Tkan' sostojala iz N, S , N i O v

  15. RBE of some Sodium, Water and Bioelectric Parameters of Gastro-Intestinal Absorption; L'EBR pour le Transport du Sodium et de l'Eau et pour Certains Parametre Bioelectriques dans l'Absorption Gastro-Intestinale; Obeh v otnoshenii nekotorykh natrievykh, vodnykh i bioehlektricheskikh parametrov vsasyvaniya v zheludochno-kishechnom trakte; La EBR Para el Transporte del Sodio y del Agua y Para Ciertos Parametros Bioelectricos en la Absorcion Gastrointestinal

    Energy Technology Data Exchange (ETDEWEB)

    Vaughan, B. E.; Davis, A. K.; Cummins, J. T.; Alpen, E. L. [US Naval Radiological Defense Laboratory, San Francisco, CA (United States)

    1964-05-15

    permeabilidad decrece al aumentar las dosis de irradiacion. (author) [Russian] Ranee soobshhalos' o biojelektricheskih izmerenijah i izmerenii potoka v odnom napravlenii. Krys i sobak pod- vergali rentgenovskomu oblucheniju pri pikovym naprjazhenii 250 kv (krysy) ili 1000 kv (sobaki) i oblucheniju bystrymi nejtronami. Obluchenie bylo obshhim, dvustoronnim, v kazhdom sluchae proizvodilas' glubinnaja dozimetrija. U hrys cherez 7 dnej posle obluchenija biojelektricheskaja aktivnost' zheludka znachitel'no snizhalas' po sravneniju s normoj, no v nizhnih otdelah zheludochno-kishechnogo trakta takogo snizhenija ne bylo. Dlja pozdnego snizhenija biojelektricheskoj aktivnosti zheludka ustanovlena velichina OBJe porjadka 2-3, jetot jeffekt otchetlivo zameten pri doze nejtronov v 160 rad (1-e stolknovenie). U sobak cherez tri dnja posle obluchenija skorost' odnostoronnego perehoda natrija i vody iz plazmy v prosvet kishechnika snizhalas'. Jeto nabljudaetsja posle rentgenovskogo obluchenija pri 1200 rentgen (doza v vozduhe) i posle nejtronnogo obluchenija pri 300 rad ili 600 rad (1-e stolknovenie). Odnako pri doze rentgenovyh luchej 600 rad (v vozduhe) jeti skorosti perehoda ne izmenjajutsja i imejut drugoe napravlenie. Velichina OBJe dlja pozdnego snizhenija perehoda iz plazmy v prosvet kishechnika budet ravnjat'sja 2 - 6. Izuchenie jelektrogennogo mehanizma na zheludke krysy ukazyvaet na specifichnost' iona natrija v otlichie ot dannyh, poluchennyh na zheludke ljagushki. Velichiny potencialov, poluchennye in vitro, sootvetstvujut velichinam, poluchennym in vivo, i menjajutsja lish' pod vlijaniem metabolicheskogo otravlenija ili zameshhanija natrija. V protivopolozhnost' biojelektricheskim parametram opredelenija potoka javljajutsja bolee specifichnymi; odnako znachitel'naja biologicheskaja variabil'nost' ogranichivaet ih ispol'zovanie. Odnostoronnie toki iz plazmy v prosvet kishechnika obnaruzhivajut znachitel'nye izmenenija pod vlijaniem radiacii, chto ukazyvaet na snizhenie

  16. Theory of the Influence of Phonon-Phonon and Electron-Phonon Interactions on the Scattering of Neutrons by Crystals; Theorie de l'influence des interactions phonon-phonon et electron-phonon sur la diffusion des neutrons par des cristaux; Teoriya vliyaniya vzaimodejstvij fonon-fonon iehlvktron-fonon na rasseyanie nejtronov kristalla-; Teoria de la influencia de las interacciones fonon-fonon y electron-fonon en la dispersion de neutrones por cristales

    Energy Technology Data Exchange (ETDEWEB)

    Kokkedee, J J.J. [Institute for Theoretical Physics of the University of Utrecht (Netherlands)

    1963-01-15

    As predicted by harmonic theory the coherent inelastic spectrums of neutrons, scattered by a single, non-conducting crystal, for a particular angle of scattering consists of a number of delta-function peaks superposed on a continuous background. The peaks correspond to one-phonon processes in which one phonon is absorbed or emitted by the neutron; the background arises from multi-phonon processes. When anharmonic forces (phonon-phonon interactions) are present, the delta-function peaks are broadened into finite peaks, while their central frequencies are shifted with respect to the harmonic values. In the case of a metal there is in addition to phonon-phonon interactions an interaction between phonons and conduction electrons, which also gives a contribution to the displacement and broadening oftheone-phononpeaks. Continuing earlier work of Van Hove (sho considered the relatively simple case of a non-conductin crystal in its ground state (T = 0{sup o}K) ), we have studied the shifts and widths of the scattering peaks as a 'result of the above-mentioned interactions by means of many particle perturbation theory, making extensive use of diagram techniques. Prerequisite to the entire discussion is the assumption that, independent of the strength of the interactions, the width of each peak is small compared to the value of the frequency at its centre; only then the peaks can be considered as being well defined with respect to the background to higher order in the interactions. This condition is expected to be fulfilled for temperatures which are not too high and values of the phonon wave vector which are not too large. Our procedure yields closed formulae for the partial scattering function describing the peaks, which can be evaluated to arbitrarily high accuracy. In particular an expansion for calculating the line shift and line width in powers of u/d and in terms of simple connected diagrams is obtained (u is an average atomic or ionic displacement, d is the smallest interatomic or interionic distance in the crystal). Approximate calculations are performed to give some insight into the orders of magnitude of the effects under study. (author) [French] Comme le predit la theorie harmonique, le spectre de la diffusion inelastique coherente de neutrons par un monocristal non conducteur, pour un angle de diffusion donne, se compose d'une serie de pics de fonction delta, qui se superposent a un bruit de fond continu. Les pics correspondent a des phenomenes a un phonon, dans lesquels un phonon est absorbe ou emis par le neutron; le bruit de fond provient de phenomenes a plusieurs phonons. Lorsqu'il existe des forces anharmoniques (interaction phonon-phonon) les pics de fonction delta s'elargissent pour former des pics finis et leur frequence centrale est dephasee par rapport aux valeurs harmoniques. Dans le cas d'un metal il y a, en plus des interactions phonon-phonon, une interaction entre les phonons et les electrons de conduction, laquelle contribue a dephaser et elargir encore davantage les pics a un phonon. Continuant les travaux de Van Hove (qui avait considere le cas relativement simple d'un cristal non conducteur a l'etat fondamental, soit T = 0{sup o}K) l'auteut a etudie les deplacements et les largeurs des pics de diffusion resultant des interactions indiquees plus haut, a l'aide de la theorie de la perturbation a plusieurs particules, en ayant largement recours a la methode des diagrammes. Il admet, avant tout examen du probleme, que quelle que soit la force des interactions, la largeur de chaque pic est petite par rapport a la valeur de la frequence en son centres dans ces conditions seulement, on peut considerer que les pics sont bien definis par rapport au bruit de fond, si les calculs d'interaction sont pousses jusqu'aux ordres superieurs. On estime que cette hipothbse est realisee tant que les temperatures ne sont pas trop elevees et que les valeurs du vecteur d'onde des phonons ne sont pas trop considerables. La methode appliquee par l'auteur lui permet d'obtenir des formules fermees pour la fonction de diffusion partielle decrivant les pics, qui peuvent etre calculees avec une approximation aussi pousee qu'on le desire. L'auteur a obtenu notamment une expression qui permet de calculer le dephasage et la largeur des raies en puissances de u/d et en fonction de diagrammes connectes simples (u etant le deplacement atomique ou ionique moyen et d la plus petite distance interatomique ou interionique dans le cristal). Des calculs approches donnent une idee de l'ordre de grandeur des effets etudies. (author) [Spanish] Como permite predecir la teoria armonica, el espectro de neutrones dispersados coherente e inelasticamente por un monocristal no conductor consiste, para un angulo de dispersion determinado, en una serie de picos de function delta supetpuestos a un fondo continuo. Los picos corresponden a procesos en que el neutron absorbe o emite un solo fonon; el fondo se debe a procesos de varios fonones. Cuando intervienen fuerzas anarmonicas (interacciones fonon-fonon), los picos de funcion delta se ensanchan, convirtiendose en picos finitos y sus frecuencias centrales se desplazan respecto de los valores armonicos. En el caso de los metales, ademas de las interacciones fonon-fonon existe interaccion entre los fonones y los electrones de conduccion, lo que tambien contribuye al desplazamiento y ensanchamiento de los picos correspondientes a los procesos de un solo fonon. Prosiguiendo trabajos anteriores de Van Hove (quien investigo el caso relativamente sencillo de un cristal no conductor en el estado fundamental (T = 0{sup o}K) ), el autor ha estudiado el desplazamiento y la amplitud de los picos de dispersion resultantes de las mencionadas interacciones aplicando la teoria de las perturbaciones originadas por partfbulas multiples y utilizando ampliamente tecnicas de diagramas. Un requisito indispensable para dicho estudio es la hipotesis de que, sea cual fuere la intensidad de las interacciones, la amplitud de cada pico es pequena en comparacion con el valor de la frecuencia en el centro: solo en tal caso puede considerarse que los picos estan bien definidos respecto del fondo correspondiente a las interacciones de oiden mas elevado. Cabe esperar que esta condicion se cumpla para temperaturas no demasiado elevadas y valores de vector de onda fononico no excesivamente grandes. El procedimiento del autor permite obtener formulas cerradas de la funcion de dispersion parcial que describe los picos; estos pueden evaluarse con el grado de precision que se desee. En particular, se obtiene un desarrollo para calcular en potencias de u/d y en funcion de diagramas simples conectados el desplazamiento y la anchura de las rayas (u es el desplazamiento atomico o ionico medio y d es la distancia minima interatomica en el cristal). El autor efectua calculos aproximados para dar una idea del orden de magnitud de los efectos estudiados. (author)

  17. The Impulse Response of an Exponential Assembly; Reponse d'un Assemblage Exponentiel aux Impulsions; Impul'snaya kharakteristika ehksponentsial'noj sborki; Respuesta de un Conjunto Exponencial a los Impulsos

    Energy Technology Data Exchange (ETDEWEB)

    Uhrig, R. E. [University of Florida, Gainesville, FL (United States)

    1964-04-15

    {sup -z{sup 2/4}} {sup VDt} {sup {infinity}}{Sigma}{sub m} {sub =} {sub 1} {sup {infinity}}{Sigma}{sub n} {sub =} {sub 1} cos m{pi}x/a cos n{pi}y/b e{sup -VD{gamma}{sup 2mn{sup t}}} (3) Esli rassmatrivajutsja tol'ko chleny uravnenija (A-3) vne dvojnogo slozhenija (t.e. ne uchityvajutsja faktory razmnozhenija i utechki)* to poluchaetsja sledujushhij rezul'tat: 2/ab Square-Root V/{pi}D 1/ Square-Root t e{sup -z{sup 2/4}} {sup VDt} = 4V/ab P(z), (4) gde P (z) javljaetsja gaussovym chlenom raspredelenija formy: P(z) = 1/o Square-Root 2{pi} e{sup -z{sup 2/2{gamma}{sup 2}}} (5) pri zavisimom ot vremeni standartnom otklonenii o = Square-Root 2 VDt. (6) Takim obrazom, impul's teplovyh nejtronov, vvedennyj v ishodnoj punkt, rasprostranjaetsja so vremenem simmetricheski po ploskosti z =o. Odnako izmenenie amplitudy so vremenem v ljubom meste vdol' z pokazyvaet, chto maksimal'naja velichina plotnosti nejtronov ishodit iz ishodnogo punkta s umen'sheniem amplitudy. Hotja razmnozhenie i obratnaja utechka vlijajut na harakteristiki vozmushhenija, jeto rasprostranjaetsja ot istochnika podobno nejtronnym volnam. Rasprostranenie impul'sa teplovyh nejtronov bylo prodemonstrirovano jeksperimental'no v 1962 godu vo Floridskom universitete pri ispol'zovanii impul'snogo istochnika nejtronov i {sup j}ashhika termalizatora{sup .} Na jetot raz byl ispol'zovan metod perekrestnoj korreljacii psevdo-besporjadochnogo dvojnogo (vykljuchenija-vkljuchenija) izmenenija sily istochnika i izmenenija v rezul'tate jetogo plotnosti nejtronov v jeksponencial'noj sborke. Privodjatsja dannye dlja jeksperimentov, provedennyh na sborkah s zamedleniem kak na legkoj, tak i na tjazheloj vode, na kotoryh ispol'zuetsja prirodnyj uran. Obsuzhdajutsja rezul'taty s tochki zrenija poluchennoj teoreticheskoj svjazi i fizicheskih javlenij. Kratko obsuzhdajutsja dejstvitel'nost' ustanovlennyh svjazej i neobhodimost' rassmotrenija bolee vysokih garmonikov dlja razlichnyh raspolozhenij gorjuchego i zamedlitelja. (author)

  18. Non-Destructive Methods for Determining Burn-Up in Nuclear Fuel; Methodes Non Destructives d'Evaluation du Taux de Combustion dans le Combustible Nucleaire; Metody opredeleniya vygoraniya v yadernom toplive bez razrusheniya obraztsa; Metodos No Destructivos para Determinai el Grado de Combustion de los Elementos Combustibles Nucleares

    Energy Technology Data Exchange (ETDEWEB)

    McGonnagle, W. J. [Illinois Institute of Technology, Chicago, IL (United States)

    1966-02-15

    jadernyh reaktorah bez razrushenija obrazca javljajutsja poleznymi i zhelatel'nymi. Ideal'nym byl by metod, ne trebujushhij special'nyh dannyh o nejtronnom spektre, istorii radiacii ili vremeni ohlazhdenija. Obluchennye toplivnye jelementy sami po sebe javljajutsja nositeljami informacii o stepeni vygoranija topliva. Jeta informacija soderzhitsja v forme radioaktivnyh i stabil'nyh izotopov, obrazujushhihsja v processe delenija. K sozhaleniju,kak pri metodah analiza topliva bez razrushenija obrazca, tak i s razrusheniem obrazca nejtronnyj spektr, istorija radiacii i period ohlazhdenija vlijajut na jetu informaciju. Tochno tak zhe nedostatok tochnyh jadernyh dannyh, takih, kak znachenija jadernyh poperechnyh sechenij, vlijaet na ljubye vychislenija, kotorye mozhno bylo by proizvesti. Drugoj trudnost'ju pri analizah bez razrushenija obrazca javljaetsja nalichie polej vysokoj radiacii, kotoraja vnosit dopolnitel'nyj ''shum'' v fon pri izmerenijah. Razrabotka poleznyh i real'nyh standartov javljaetsja trudnym delom. Metody analiza stepeni vygoranija bez razrushenija obrazca osobenno polezny togda, kogda trebuetsja bystro i jekonomichno, dazhe pri sushhestvujushhem polozhenii s ih nedostatkom, poluchit' zhelatel'nuju tochnost' priblizitel'noj velichiny vygoranija. Ispol'zovalos' neskol'ko metodov dlja opredelenija stepeni vygoranija bez razrushenija obrazca; vedetsja ih ocenka ili oni predlagajutsja. Ispol'zovalis' razlichnye tipy spektrometrov, v tom chisle spektrometry s izognutym kristallom, magnitnyj komptonovskij spektrometr, komptonovskij spektrometr na sovpadenija i scintilljacionnyj spektrometr dlja analiza gamma-izluchenija radioaktivnogo materiala, obrazujushhegosja vo vremja processa delenija. Drugie metody analiza bez razrushenija obrazca vkljuchajut aktivaciju fol'gi, propuskanie nejtronov, aktivacionnyj analiz, izmerenie zahvata gamma-luchej i izmerenie mgnovennyh i zapazdyvajushhih nejtronov. Rassmatrivajutsja osnovnye principy kazhdogo iz vyshenazvannyh metodov i

  19. GenBank blastx search result: AK060750 [KOME

    Lifescience Database Archive (English)

    Full Text Available n 6, a glutamate dehydrogenase 1 (GLUD1) pseudogene and the 3' end of the DCX gene for doublecortex; lissencephaly, X-linked (doublecortin), complete sequence.|PRI PRI 2e-12 +2 ...

  20. GenBank blastx search result: AK058518 [KOME

    Lifescience Database Archive (English)

    Full Text Available n 6, a glutamate dehydrogenase 1 (GLUD1) pseudogene and the 3' end of the DCX gene for doublecortex; lissencephaly, X-linked (doublecortin), complete sequence.|PRI PRI 1e-24 +2 ...

  1. GenBank blastx search result: AK107763 [KOME

    Lifescience Database Archive (English)

    Full Text Available isease and variant metachromatic leukodystrophy) variant, clone: SYN03435.|PRI PRI 3e-11 +3 ... ...AK107763 002-133-A11 AK223290.1 Homo sapiens mRNA for prosaposin (variant Gaucher d

  2. GenBank blastx search result: AK105761 [KOME

    Lifescience Database Archive (English)

    Full Text Available ome 6q13-15 Contains the 3' part of the BCKDHB gene for branched chain keto acid dehydrogenase E1, beta polypeptide (maple syrup urine disease), complete sequence.|PRI PRI 1e-115 +2 ...

  3. GenBank blastx search result: AK061863 [KOME

    Lifescience Database Archive (English)

    Full Text Available ome 6q13-15 Contains the 3' part of the BCKDHB gene for branched chain keto acid dehydrogenase E1, beta polypeptide (maple syrup urine disease), complete sequence.|PRI PRI 2e-47 +2 ...

  4. GenBank blastx search result: AK104686 [KOME

    Lifescience Database Archive (English)

    Full Text Available ome 6q13-15 Contains the 3' part of the BCKDHB gene for branched chain keto acid dehydrogenase E1, beta polypeptide (maple syrup urine disease), complete sequence.|PRI PRI 1e-48 +1 ...

  5. Effect of partial oxygen pressure on physicochemical properties of Kh18N10T steel at isothermal oxidation. Vliyanie partsial'nogo davleniya kisloroda na fiziko-khimicheskie svojstva poverkhnosti stali Kh18N10T pri izotermicheskom okislenii

    Energy Technology Data Exchange (ETDEWEB)

    Alekseev, V N; Oshe, E K; Fokin, M N; Bogdanova, S V; Loskutov, A I [AN SSSR, Moscow (USSR). Inst. Fizicheskoj Khimii

    1990-10-01

    Auger-electron spectroscopy, photoelectric polarization, conductometry methods have been used to analyze chemical and defect composition of surface oxide layers, formed on stainless steel Kh18N10T in vacuum (10{sup -9} - 10{sup -2} torr) and at temperatures 593-673 K. The boundary conditions of manifestation of extermal behaviour of the dependence of the surface oxide growth rate at isothermal oxidation of this steel are determined. The relation between passivation properties of the surface oxide and the magnitude of the edge angle of the surface wetting with molten tin is revealed.

  6. Catalysis under Irradiation in the Presence of Non-Metallic Solids; Catalyse sous irradiation en presence de solides non metalliques; Radiatsionnyj kataliz pri nalichii'nemetallicheskikh tverdykh tel; Radiocatalisis en presencia de solidos no metalicos

    Energy Technology Data Exchange (ETDEWEB)

    Coekelbergs, R.; Crucq, A.; Decot, J.; Degols, L.; Frennet, A.; Lienard, G.; Timmerman, L. [Laboratoire de Chimie Nucleaire, Institut Interuniversitaire des Sciences Nucleaires et Ecole Royale Militaire, Bruxelles (Belgium)

    1963-11-15

    Catalytic processes induced by radiation in the presence of non-metallic solids are discussed, attention being given exclusively to the effects associated with modification of the steady state concentration of charge carriers. The effect of such modification on the kinetics and equilibrium of heterogeneous reactions is quantitatively estimated within the framework of the electronic theory of catalysis, due regard being paid to the electronic characteristics of the surface of the solid. In conclusion, the relationship between these phenomena, catalyst activation and transfer of energy, as previously described, is discussed. (author) [French] Les auteurs discutent des processus catalytiques induits par les radiations en presence de solides non metalliques. Ils considerent exclusivement les effets lies a la modification de la concentration stationnaire des porteurs de charge.- L'influence de cette modification sur la cinetique et l'equilibre des reactions heterogenes est evaluee quantitativement dans le cadre de la theorie electronique de la catalyse et en tenant compte de caracteristiques electroniques de la surface du solide. Enfin, ils discutent la relation existant entre ces phenomenes, l'activation des catalyseurs et le transfert d'energie decrits anterieurement. (author) [Spanish] Los autores examinan los procesos cataliticos inducidos por las radiaciones en presencia de solidos no metalicos. Consideran exclusivamente los efectos vinculados con la modificacion de la concentracion estacionaria de los portadores de carga. Sobre la base de la teoria electronica de la catalisis y teniendo en cuenta las caracteristicas electronicas de la superficie del solido, determinan cuantitativamente la influencia de aquella modificacion sobre la cinetica y el equilibrio de las reacciones heterogeneas. Por ultimo, analizan la relacion que existe entre estos fenomenos, la activacion de los catalizadores y la transmision de energia descritas anteriormente. (author) [Russian] Avtory obsuzhdayut protsessy kataliza, indutsirovannye radiatsiej v prisutstvii nemetallicheskikh tverdykh tel. Oni rassmatrivayut isklyuchitel'no tol'ko dejstviya, svyazannye s izmeneniem postoyannoj kontsentratsii nositelej zaryada. Vliyanie ehtogo izmeneniya na kinetiku i ravnovesie geterogennykh reaktsij rasschityvaetsya kolichestvenno v ramkakh ehlektronnoj teorii kataliza i uchityvaya ehlektronnye kharakteristiki poverkhnosti tverdogo tela. Nakonets, oni rassmatrivayut sootnoshenie, sushchestvuyushchee mezhdu ehtimi yavleniyami, aktivatsiej katalizatorov i peredachej ehnergii, opisannymi ranee. (author)

  7. Drugi pored mene. Antologija priča i eseja pisaca Jugoistočne Evrope (anthologie éditée par Ričard Švarc

    Directory of Open Access Journals (Sweden)

    Pieter Troch

    2009-02-01

    Full Text Available L’anthologie Drugi pored mene… (L’Autre à côté de moi. Anthologie de nouvelles et d’essais d’écrivains de l’Europe du sud-est comprend vingt et une nouvelles et essais écrits par des auteurs contemporains serbes (David Albahari, Vladimir Arsenijević, László Végel, Charles Simic, Biljana Srbljanović, Dragan Velikić, kosovars (Beqë Cufaj, croates (Slavenka Drakulić, Bora Ćosić, Miljenko Jergović, Irena Vrkljan, bulgares (Dimitré Dinev, Vladimir Zarev, bosniaques (Aleksandar Hemon, Saša Sta...

  8. Substantive Legality in the Determination of Tax Liabilities in Terms of Time Validity (Materialna zakonitost pri določanju davčnih obveznostih z vidika časovne veljavnosti

    Directory of Open Access Journals (Sweden)

    Jernej Podlipnik

    2015-11-01

    Full Text Available In the article the author deals with the question which substantive tax rules that determine a taxpayer and tax liability (tax debt should apply in cases where these rules change from the time a taxable event takes place and until the tax is self-assessed of levied, if the legislator has not prescribed anything in the transitional provisions in this respect. Since the Slovenian tax legislation has no general provisions for such cases, the jurisprudence has decided to either apply the provisions that were in force at the date that tax obligation occurred or provisions that were in force during the tax period to which the tax liability relates. The author is a bit critical of that position because he finds it inadequate to some extent. Therefore he suggests an amended interpretation which takes into account provisions of the Slovenian constitution and practice of the Slovenian Constitutional Court. In conclusion, the author proposes an amendment of the Slovenian tax legislation with the enactment of a general provision that would resolve such legal situations.

  9. Cytohematological indices of cattle adaptation to the chronic radiation effect in the exclusion zone of the Chernobyl NPP.; Tsitogematologicheskie pokazateli adaptatsii u krupnogo rogatogo skota pri khronicheskom radiatsionnom vozdejstvii v Zone otchuzhdeniya ChAEhS.

    Energy Technology Data Exchange (ETDEWEB)

    Panchenko, N A; Filimonov, I S; Zagorujko, E E; Gashchak, S P; Korisheva, A P [Myizhgaluzevij Naukovo-Tekhnyichnij Tsentr ` ` Ukrittya ` ` , Natsyional` na Akademyiya Nauk Ukrayini, Chornobil` (Ukraine); [Nauchno-Proizvodstvennoe Ob` ` edinenie Pripyat` , Chernobyl (Ukraine)

    1994-12-31

    Peripheral blood cells have been examined in cattle from the experimental farm in the 10 km zone of the Chernobyl NPP. With that aim 25 animals of different age groups and generations were investigation. Appearance of heteropholic granulocytes and << specific >> basophilic cells which heterogeneity is explained by their morphological and functional attribution has been observed.

  10. Type 1 Diabetes in the Young: Organization of two National Centers in Israel and Slovenia / Sladkorna Bolezen Tipa 1 Pri Otrocih in Mladostnikih: Organizacija Dela V Dveh Nacionalnih Centrih V Izraelu in Sloveniji

    Directory of Open Access Journals (Sweden)

    Bratina Nataša

    2015-03-01

    Full Text Available Sladkorna bolezen tipa 1 je kronično avtoimuno obolenje, ki najpogosteje prizadene mlade ljudi. Incidenca bolezni zadnjih 50 let narašča po vsem svetu, v povprečju je letni porast incidence ocenjen na 4 %, ob tem pa starost bolnikov ob času diagnoze pada. Raziskave kažejo, da je dobra presnovna urejenost bolnikov s sladkorno boleznijo zelo pomembna, saj je s tem mogoče odložiti pozne zaplete bolezni ter izboljšati kvaliteto življenja bolnikov in njihovih družin. Neprekinjena edukacija bolnikov skupaj z možnostmi moderne tehnologije lahko prispeva k izboljšanju njihove presnovne urejenosti. Presnovno urejenost spremljamo z določanjem glikoziliranega hemoglobina (HbA1c ter s številom težkih hipoglikemij in ketoacidoz na populacijo pacientov v določenem časovnem obdobju. V prispevku sta opisana dva nacionalna referenčna centra za obravnavo otrok, mladostnikov in mladih odraslih s sladkorno boleznijo v Izraelu in Sloveniji.

  11. System of Sr(NO sub 2 ) sub 2 -Sr(OH) sub 2 -H sub 2 O at 25 deg C. Sistema Sr(NO sub 2 ) sub 2 -H sub 2 O pri 25 grad C

    Energy Technology Data Exchange (ETDEWEB)

    Popova, T B; Berdyukova, V A; Khutsistova, F M [Kalmytskij Gosudarstvennyj Univ., Ehlista (USSR) Rostovskij-na-Donu Gosudarstvennyj Univ., Rostov-na-Donu (USSR)

    1990-02-01

    Sr(NO{sub 2}){sub 2}-Sr(OH){sub 2}-H{sub 2}O system was investigated by the methods of solubility, density, viscosity, electric conductivity and refractometry. It was established that its compoments form the compound 4Sr(NO{sub 2}){sub 2}xSr(OH){sub 2}x8H{sub 2}O. The compound was separated from solution; its density, decomposition temperature were determined; IR spectra and X-ray patterns of prepared and initial compounds were obtained.

  12. Technique for forecasting the radiation damages of digital large-scale integrated circuits under cosmic ray ions effect; Metodika prognozirovaniya radiatsionnykh sbolev tsifrovykh bis pri vozdejstv ii ionov kosmicheskikh luchej

    Energy Technology Data Exchange (ETDEWEB)

    Verkhoturov, V M [and others

    1994-12-31

    Rated experimental methods for forecasting the frequency of radiation failures of digital LSIC and SLSIC of the space vehicle electronic board equipment under effect of cosmic ray ions are considered.

  13. Changed of the working capacity of CMOS integrated circuits under ionizing radiations effect of low and high dose rate; Izmeneniya rabotosposobnosti KMOP integral`nykh mikroskhem pri vozdejstvii ioniziruyushchikh izluchenij s nizkoj i vysokoj intensivnost`yu

    Energy Technology Data Exchange (ETDEWEB)

    Bogatyrev, Yu V; Korshunov, F P

    1994-12-31

    Results of experimental investigations into the working capacity of different types of integrated CMOS circuits under effect of electron and gamma radiation are presented. Methods for evaluating IC CMOS under low irradiation intensity using the microcircuit testing under hugh intensity or at increased temperature with regard to the processes of parameter reconstruction after irradiation are proposed.

  14. Method to calculating an internal electromagnetic pulse generated in a system under gamma radiation effect; Metod rascheta vnutrennego ehlektromagnitnogo impul`sa, generiruemogo v sisteme pri vozdejstvii gamma-izlucheniya

    Energy Technology Data Exchange (ETDEWEB)

    Ogorodnikov, S N

    1994-12-31

    A method of calculating internal electromagnetic pulse, generated in the system under effect of gamma radiation is developed. Ratios for basic electron flux characteristics and components of electric and magnetic fields generated by gamma radiation, are indicated for a cylindrical cavity under gamma radiation effect on its surface. To illustrate this a case is considered when a single flux velocity component is present.

  15. Change of electric parameters of power cables for nuclear installations under separated and combined effect of radiation and humidity; Izmenenie ehlektricheskikh parametrov silovykh kabelej dlya yadernykh ustano vok pri razdel`nom i sovmestnom vozdejstvii izlucheniya i povyshennoj vlazhnosti

    Energy Technology Data Exchange (ETDEWEB)

    Filatov, N I

    1994-12-31

    Results of an experimental investigation into the changes of insulation resistance, capacitance and tangent of force cable dielectric loss angle under separate and combined action of gamma radiation and increased humidity of the environment are presented.

  16. IR spectroscopy and electron-positron annihilation study of microstructure of polymer materials under low-intensity irradiation; Issledovanie mikrostruktury polimernykh materialov pri nizkointensivnom obluchenii s ispol`zovaniem IK-spektroskopii i ehlektron-pozimtronnoj annigilyatsii

    Energy Technology Data Exchange (ETDEWEB)

    Valeev, R S; Kononenko, A.I.

    1994-12-31

    A model of oxidation destruction of polymer materials under a low-intensity gamma irradiation is considered. The results obtained allow one to determine conditions for conducting accelerated testings, which the mechanism of polymer material aging under their utilization at NPPs is realized.

  17. Automatic Sample Changing System for Gamma-Ray Spectrometry; Changeur Automatique d'Echantillons Pourla Spectrometrie Gamma; Avtomaticheskaya sistema dlya smeny obraztsov pri gamma-spektrometrii; Cambiador Automatico de Muestras para Espectroscopia Gamma

    Energy Technology Data Exchange (ETDEWEB)

    Lamson, K. C.; Sesko, W. J.; Nicholson, G. C. [Northeastern Radiological Health Laboratory, Winchester, MA (United States)

    1965-10-15

    The detection of gamma-emitting radionuclides at environmental levels in biological media requires that the sensitivity of the counting system be high. To accumulate sufficiently precise data, it is often necessary to count samples for long periods of time - from one to several hours. The most efficient utilization of expensive low-background gamma-ray spectrometric counting equipment requires that it be operated on a continuous basis. This necessitates either the continuous presence of personnel or a completely automated system, including the changing of samples and recording of data. The purpose of this paper is to describe the automated gamma-ray spectrometry counting system designed, built and in use at the Northeastern Radiological Health Laboratory, Winchester, Massachusetts. The sample changing unit was designed to operate in conjunction with a large steel shield, any commercial unit with a front opening door being readily adaptable for this purpose. The changer is equipped to handle a variety of samples including biological and medical types. The unit consists of a revolving tray with a capacity for sixteen samples, an indexing system for positioning the samples, a mechanical arm with an attached electromagnet for inserting and removing the samples from the shield, and a lever for opening and closing the shield door. The changer has been completely integrated with a multichannel analyser with the provision of safety features to interrupt the cycle in case of malfunction at any step. After a preset counting period, the data are punched onto paper tape and processed by an IBM. 1620 computer. The first model of the sample changer, for which a patent is pending, has been in operation at the Northeastern Radiological Health Laboratory for about one year. During that time, it has been used extensively and has proven completely satisfactory. The total cost of the unit, including labour, was less than $ 2000. (author) [French] GAMMAPour deceler les radionucleides emetteurs gamma presents dans les milieux biologiques a la concentration naturelle, il faut que l'ensemble de comptage utilise soit de haute sensibilite et, de plus, que la duree du comptage des echantillons soit longue - de une li plusieurs heures -, sil'onveut obtenir des donnees assez precises. Pour tirer le meilleur parti possible de l'appareil de comptage par spectroscopie gamma a faible mouvement propre qui est couteux, il faut l'utiliser sans interruption. Cela suppose la presence continue de personnel ou une complete automatisation comprenant le changement des echantillons et l'enregistrement des donnees. Le memoire a pour objet de decrire l'appareil automatique de comptage par spectrometrie gamma, concu et realise par le Northeastern Radiological Health Laboratory, a Winchester (Massachusetts). Le changeur d'echantillons est coupje a une enceinte blindee en acier, n'importe quelle enceinte blindee en vente dans le commerce avec porte sur le devant pouvant etre facilement adaptee a cette fin. Le changeur est capable de manipuler toute une variete d'echantillons, notamment des echantillons biologiques et medicaux. Il est constitue par un plateau rotatif destine a recevoir 16 echantillons, un dispositif code de positionnement des echantillons, un bras mecanique muni d'un electro-aimant qui introduit les echantillons dans l'enceinte et les en retire, et d'un levier automatique commandant l'ouverture et la fermeture de la porte de l'enceinte. Le changeur est completement integre a un analyseur multicanal et equipe de circuits de controle permettant d'arreter l'experience en cas de fonctionnement defectueux a un moment quelconque. Apres comptage pendant une periode determinee a l'avance, les donnees sont enregistrees par perforation sur bande puis traitees a l'aide d'une calculatrice IBM 1620. Ce premier modele de changeur d'echantillons, qui doit etre brevete incessamment, fonctionne depuis un an environ au Northeastern Radiological Health Laboratory. Il a ete intensement utilise pendant cette periode et s'est revele tout a fait satisfaisant. Son prix de revient, main-d'oeuvre comprise, est inferieur a 2000 dollars. (author) [Spanish] La deteccion en medios biologicos de radionuclidos emisores gamma de actividad poco superior a la ambiente requiere el empleo de un sistema de recuento muy sensible. Ademas, para lograr datos suficientemente precisos es necesario que el tiempo de recuento sea relativamente largo, a saber, de una a varias horas. Para utilizar con la mayor eficacia posible el equipo de recuento de espectrometria gamma de baja actividad de fondo, que es sumamente costoso, conviene hacerlo funcionar en forma continua durante 24 h al dfa. Para ello se requiere personal que lo atienda constantemente o un sistema de recuento enteramente automatico incluso para el cambio de muestras y el registro de los datos. En esta memoria se describe el sistema automatizado de recuento por espectroscopia gamma disenado, construido y utilizado en el Northeastern Radiological Health Laboratory de Winchester, Massachusetts. El cambiador de muestras funciona en conjuncion con un blindaje de acero que no necesita ser especial; cualquiera de los comerciales, si esta provisto de una puerta frontal, puede ser adaptado al cambiador. Dicho cambiador puede adaptarse a diversos tipos de muestras, incluidas las biologicas y medicas. Consta de una bandeja giratoria con capacidad para 16 muestras; un sistema localizador para las muestras; un brazo mecanico, con electroiman, para introducir o retirar las muestras desde el exterior, y una palanca para abrir y cerrar la puerta blindada. El cambiador se ha integrado completamente con un analizador multicanal provisto de dispositivos de seguridad que interrumpen el ciclo cuando se produce una averfa en cualquier punto. Despues de un periodo de recuento predeterminado, los datos pasan a una calculadora IBM 1620 transcritos en cinta de papel perforada. El primer modelo de cambiador de muestras, para el cual se ha solicitado una patente, viene funcionando satisfactoriamente desde hace mas de un ano en el Northeastern Radiological Health Laboratory. Su costo total, inclusive la mano de obra, fue inferior a 2000 dolares. (author) [Russian] Obnaruzhenie prirodnyh kolichestv gamma-izluchajushhih radioizotopov v biologicheskoj srede trebuet vysokoj chuvstvitel'nosti schetnoj sistemy. Dlja togo, chtoby poluchit' dostatochno tochnye dannye, trebuetsja mnogo vremeni, ot odnogo do neskol'kih chasov. Naibolee jeffektivnoe ispol'zovanie dorogostojashhego gamma-spektrometricheskogo schetnogo oborudovanija s nizkim fonom trebuet ego nepreryvnoj raboty. Dlja jetogo neobhodimo libo postojannoe prisutstvie personala, libo nalichie polnost'ju avtomatizirovannoj sistemy, vkljuchajushhej smenu obrazcov i registraciju dannyh. Cel'ju nastojashhego doklada javljaetsja opisanie avtomatizirovannoj gamma-spektrometricheskoj schetnoj sistemy, sproektirovannoj, izgotovlennoj i rabotajushhej v radiologicheskoj laboratorii v Uinchestere, shtat Massachusets. Prisposoblenie dlja smeny obrazcov bylo sproektirovano dlja raboty v sochetanii s bol'shim stal'nym jekranirovannym kontejnerom, i dlja jetoj celi mozhno legko primenit' ljuboe imejushheesja v prodazhe prisposoblenie takogo roda s otkryvajushhejsja perednej dvercej. Prisposoblenie oborudovano takim obrazom, chtoby obrabatyvat' razlichnye obrazcy, v tom chisle biologicheskie i medicinskie. Ono sostoit iz vrashhajushhegosja lotka, rasschitannogo na shestnadcat' obrazcov, sistemy periodicheskoj krugovoj podachi dlja ustanovki obrazcov v nuzhnoe polozhenie, mehanicheskoj ruki s jelektromagnitom dlja vvedenija i vyemki obrazcov iz kontejnera i rychaga dlja otkryvanija i zakryvanija dvercy kontejnera. Sistema dlja smeny obrazcov soedinena s mnogokanal'nym analizatorom, kotoryj obespechivaet bezopasnost', preryvaja cikl v sluchae neispravnosti v ljuboj faze. Posle zadannogo vremeni scheta dannye nanosjatsja putem punshirovanija na bumazhnuju lentu i obrabatyvajutsja schetno-reshajushhim ustrojstvom IBM 1620. Pervaja sistema dlja smeny obrazcov, na kotoruju zajavlen patent, prorabotala v laboratorii okolo odnogo goda. Za jeto vremja ona shiroko ispol'zovalas' i pokazala sebja vpolne udovletvoritel'noj. Obshhaja stojmost' ustanovki, vkljuchaja rabotu, sostavila menee 2000 doll.SShA. (author)

  18. Reactivity coefficients by perturbation theory; Calcul des coefficients de re activite par la theorie des perturbations; Koehffitsienty reaktivnosti, opredelennye pri pomoshchi teorii vozmushchenij; Determinacion, de coeficientes de reactividad con ayuda de la teoria de las perturbaciones

    Energy Technology Data Exchange (ETDEWEB)

    Webster, J W [International Atomic Energy Agency, Vienna (Austria)

    1962-03-15

    The development of the formulae of perturbation theory provides a good opportunity to use one of the principal devices of mathematical heuristics, i.e. proceeding by analogy from something that is simple to something that is more complicated. This paper: (a) Reviews the formulation of perturbation theory as a method of calculating reactivity coefficients; this consists mainly of developing the differential equation for the adjoint flux, as a continuous function of position and lethargy, by proceeding by analogy from the one-group differential equation for adjoint flux. (b) Presents an application of the two-group form of perturbation theory to a boiling-mercury-cooled fast-breeder reactor (MCBR). It is seen that the net Hg density coefficient of reactivity for the first-design-try for the MCBR is negative for some regions and positive for others. However, it is negative for regions of highest statistical weight and where the density change for a power change would be the greatest. The overall Hg density coefficient is thus negative, i.e. the void coefficient is positive-an unsafe condition. It can be easily seen from the two-group formulation what design changes had to be made to obtain a design which would have a negative void coefficient. It developed in subsequent investigations that there were such design changes that could be made and a design of the MCBR with a negative void coefficient was eventually achieved. (author) [French] La mise au points des formules de la theorie des perturbations fournit une bonne occasion d'employer en mathematiques une des principales regles de la methode heuristique, celle qui consiste a proceder par analogie du simple au complexe. L'auteur du memoire: a) Expose une methode permettant de calculer les coefficients de reactivite en utilisant les formules de la theorie des perturbations; en substance, cette methode consiste a developper l'equation differentielle relative au flux adjoint en fonction continue de la position et de la lethargie, en procedant par analogie a partir de l'equation differentielle a un groupe relative au flux adjoint. b) Montre comment appliquer la forme a deux groupes de la theorie des perturbations au cas d'un reacteur surgenerateur a neutrons rapides, refroidi au mercure. Lors de l'essai preliminaire du reacteur, on a constate que la variation de reactivite accompagnant une variation de densite du mercure est telle que le coefficient net de la reactivite est negatif pour certaines regions et positif pour d'autres. Il est negatif pour les regions de poids statistique le plus eleve et ou une variation de puissance entrainerait le changement de densite le plus important. Le coefficient global de densite du mercure est donc negatif, et par consequent le coefficient cavitaire est positif, ce qui est dangereux. On peut facilement voir, en employant la forme a deux groupes, quelles modifications doivent etre apportees aux plans du reacteur etudie pour obtenir un coefficient cavitaire negatif. Au cours de recherches ulterieures, il s'est revele possible d'apporter certaines de ces modifications, et l'on est finalement parvenu a etablir des plans tels que le coefficient cavitaire du reacteur soit negatif. (author) [Spanish] Las formulas de la teoria de las perturbaciones pueden establecerse empleando uno de los procedimientos mas importantes de la heuristica matematica, que consiste en partir de una expresion sencilla para llegar por analogia a una expresion mas compleja. La presente memoria: (a) Formula la teoria de las perturbaciones como metodo para calcular los coeficientes de reactividad. Consiste principalmente en desarrollar la ecuacion diferencial del flujo adjunto como funcion continua de la posicion y del letargo, procediendo por analogia a partir de la ecuacion diferencial de un solo grupo para el flujo adjunto. (b) Presenta una aplicacion de la forma de dos grupos de la teoria de las perturba ciones a un reactor reproductor rapido, refrigerado por mercurio hirviente (MCBR). Al calcular la reactividad, se comprueba que el coeficiente correspondiente a la densidad neta del mercurio en el primer proyecto del MCBR es negativo en algunas regiones, y positivo en otras. Es negativo en las regiones de peso estadistico maximo y en las que los cambios de densidad serian mayores al variar la potencia. Por lo tanto, el coeficiente global de densidad del mercurio es negativo, esto es, el coeficiente de vacios es positivo, lo que constituye una condicion que implica peligro. En la formulacion de dos grupos, se aprecia facilmente que modificaciones es preciso introducir en el diseno para que el coeficiente de cavidad sea negativo. Nuevas investigaciones demostraron que era posible introducir dichas modificaciones, lograndose establecer para el MCBR un diseno cuyo coeficiente de vacios es negativo. (author) [Russian] Razvitie formuly teorii vozmushchenij daet khoroshuyu vozmozhnost' ispol'zovat' odin iz glavnykh metodov matematicheskogo issledovaniya, t.e. proizvesti dejstvie po analogii ot prostogo k bolee slozhnomu. V ehtom doklade: a) Rassmatrivaets ya formulirovka teorii vozmushchenij v kachestve metoda rascheta koehffitsientov reaktivnosti. On sostoit, glavnym obrazom, iz razvitiya differentsial'nog o uravneniya dlya sopryazhennogo potoka kak postoyannoj funktsii polozheniya i letargii, vyvodimoe po analogii ot odnoj gruppy differentsial'nog o uravneniya dlya sopryazhennogo potoka. b) Daetsya primenenie dvukhgruppovoj formy teorii vozmushchenij dlya kipyashchego reaktorarazmnozhitelya na bystrykh nejtronakh s rtutnym teplonositelem (MCBR). Vidno, chto koehffitsient reaktivnosti rtuti nizshej plotnosti v khode pervogo ispytaniya proekta MCBR yavlyaetsya otritsatel'nym dlya nekotorykh oblastej i polozhitel'nym dlya drugikh. Odnako on yavlyaetsya otritsatel'nym dlya oblastej naivysshego statisticheskogo vesa i tam, gde izmenenie plotnosti s izmeneniem ehnergii okazyvaetsya naibol'shim. Obshchij koehffitsient plotnosti rtuti yavlyaetsya, takim obrazom, otritsatel'nym , t.e. koehffitsient poroznosti yavlyaetsya polozhitel'nym , chto predstavlyaet soboj opasnoe uslovie. Mozhno legko videt' iz dvukhgruppovoj formy, kakie izmeneniya v proekte dolzhny byt' sdelany, chtoby poluchit' proekt s otritsatel'nym koehffitsientom poroznosti. Proekt poluchil dal'nejshee razvitie v posleduyushchikh issledovaniyakh, v khode kotorykh opredeleny osushchestvimye izmeneniya dlya proekta, i proekt MCBR s otritsatel'nym koehffitsientom poroznosti byl, v konechnom schete, dostignut. (author)

  19. Hot cells for testing the UO{sub 2} fuel elements after irradiation. Radiation protection conditions for hot cells design; Vruce celije za ispitivanje gorivnih elemenata UO{sub 2} posle ozracivanja, Uslovi zastite pri projektovanju vrucih celija

    Energy Technology Data Exchange (ETDEWEB)

    Pavlovic, A; Devic, J; Mihailovic, K [Institut za nuklearne nauke Vinca, Belgrade (Yugoslavia)

    1969-07-01

    This paper includes protection conditions which hot cells should satisfy for the investigation of fuel elements after reactor irradiation. The basic elements of hot cells are given, and the conditions for a special ventilation, dosimetric control and a special treatment of contaminated water are established (author) U radu su obuhvaceni uslovi zastite koje treba da zadovolje vruce celije za ispitivanje gorivnih elemenata posle ozracivanja u reaktoru, dati su osnovni elementi vrucih celija i postavljeni su uslovi za specijalnu ventilaciju, dozimentrijsku kontrolu i specijalni tretman otpadnih voda (author)

  20. Fatigue limit of Zircaloy-2 under variable one-directional tension and temperature 300 deg C; Granica zamora zircaloy-2, pri cisto jednosmerno promenljivom opterecenju (A=1) na zatezanje i temperaturi 300 deg C

    Energy Technology Data Exchange (ETDEWEB)

    Spasic, Z; Simic, G [Institute of Nuclear Sciences Boris Kidric, Vinca, Beograd (Serbia and Montenegro)

    1968-11-15

    A vacuum chamber wad designed and constructed. It was suitable for study of materials at higher temperatures in vacuum or controlled atmospheres. Zircaloy-2 fatigue at 300 deg C in argon atmosphere was measured. Character of strain is variable one directional (A=1) tension. Obtained results are presented in tables and in the form of Veler's curve. The obtained fatigue limit was {sigma} - 15 kp/mm{sup 2}. The Locati method was allied as well and fatigue limit value obtained was 15,75 kp/mm{sup 2}. Error calculated in reference to the previous value obtained by classical methods was 5%. Konstruisana je i izvedena vakuum-komora koja se pokazala prikladna za izucavanje osobina materijala na povisenim temperaturama u vakuumu ili kontrolisanim atmosferama. Izvrseno je ispitivanje zamaranja Zircaloy-2 na temperaturi 300 deg C u atmosferi preciscenog argona. Karakter opterecenja je bio cisto jednosmerno promenljivo opterecenje (A=1) na zatezanje. Dobiveni rezultati su dati tabelarno i u obliku Velerove krive. Dobijena je granica zamora {sigma} = 15 kp/mm{sup 2}. Primenjen je i metod Locati-a za priblizno odredjivanje granice zamora i dobijena je vrednost 15,75 kp/mm{sup 2}. Greska u odnosu na prethodnu granicu zamora dobijenu klasicnim metodom iznosi 5% (author)

  1. Remedies to Fraud in Documentary Letters of Credit: A Comparative Perspective / Opravné Opatrenia Pri Podvodoch S Dokumentárnymi Akreditívami: Komparatívna Perspektíva

    Directory of Open Access Journals (Sweden)

    Alavi Hamed

    2016-06-01

    Full Text Available Article 4 of the Unified Customs and Practices of Documentary Letters of Credit establishes the notion of autonomy principle by separating credit from underlying contract between account party and beneficiary. Article 5 by recognizing the autonomy principle confirms that effectuate the payment under credit, banks only deal with documents and not with goods. As a result, while documentary letters of credit are meant to facilitate the process of international trade, their sole dependency on compliance of presented documents to bank by beneficiary to actualize the payment will increase the risk of fraud and forgery in the course of their operation. Interestingly, UCP (currently UCP600 takes a silent status regarding the problem of fraud in international LC operation and leaves the ground open for national laws to provide remedies to affected parties by fraudulent beneficiary. National Laws have different approaches to the problem of fraud in general and fraud in international LC operation in particular which makes the access of affected parties to possible remedies complicated and difficult. Current paper tries to find answer to the questions of (i what available remedies are provided to affected parties in international LC fraud by different legal systems? (ii And what are conditions for benefiting from such remedies under different legal systems? In achieving its objective, paper will be divided in two main parts to study remedies provided by intentional legal frameworks as well as the ones offered by national laws. Part one will study the position of UCP and UNCITRAL Convention on Independent Guarantees and Standby Letters of Credit (UNCITRAL Convention and remedies, which they provide to LC fraud in international trade. Part two in contrary will study available remedies to LC fraud and condition for access them under English and American legal system.

  2. Experience in scientific guidance during start-up and normal operation of NPPs with WWER reactors; Opyt nauchnogo rukovodstva puskom i soprovozhdeniya pri ehkspluatatsii ehnergoblokov AEhS s WWER

    Energy Technology Data Exchange (ETDEWEB)

    Abagyan, A; Kazakov, V; Kryakvin, L [All-Russian Inst. for NPP Operation, Moscow (Russian Federation)

    1996-12-31

    The experience gained in the All-Russian Research Institute of NPP Operation (RU) in improvement of reactor start-up and normal operation of NPPs has been reported. The work was carried out on NPPs in Russia, Ukraine, Bulgaria, Hungary and Czechoslovakia. All scientific programmes applied use the system approach, modern methods of safety assessment and the principle of loss effect optimization. For the Kozloduy NPP the following projects have been implemented: design of accelerated unloading system for WWER-1000; refinement of water feeding unit for the WWER-1000 steam generator; response analysis of the safety anti-breakdown system of the second loop. The importance of technical substantiation in the process of decision making is stressed. 6 refs.

  3. Influencing speeding behaviour through preventative police enforcement. Paper presented at the VIth International Road Safety Organisation PRI World Congress on `Marketing traffic safety', 3-6 October 1994, Cape Town, South Africa.

    NARCIS (Netherlands)

    Wesemann, P.

    1994-01-01

    This paper considers the effect of speed on road safety and how to influence speeding behaviour. The results that can be achieved through police enforcement combined with information campaigns are discussed with reference to projects carried out in the Netherlands. The cost implications are

  4. Primerjava običajnih in faktorskih modelov pri statističnem strojnem prevajanju iz angleščine v slovenščino z orodjem Moses

    Directory of Open Access Journals (Sweden)

    Sašo Kuntarič

    2017-05-01

    Full Text Available Machine translation is a field in computational linguistics that explores the use of software to translate text from one language to another. Factored statistical translation is an extension of statistical machine translation, where linguistic annotation is added on the word level. Words are turned into vectors in an attempt to improve translation quality. We describe the use of the open-source Moses system for factored statistical machine translation from English to Slovenian. We created several factored and non-factored language and translation models from a text corpus, containing IT-related texts. We translated two different IT-related documents. The first one was marketing-orientated with a complex structure, while the second one was technical with a simpler structure. We used two methods to compare the generated translations with two independent human translations and a translation, created by the Google Translate service. The first comparison method was the BLEU metrics and the second one were evaluations of human reviewers. The latter method expressed a subjective score, which is still very important in the machine translation field. Even though the results can’t be compared directly due to different metrics, the movement of the grades is well correlated for both texts. The only bigger difference can be seen while implementing factored models for translating the second text. In the conclusion we analysed the inter-evaluator coherence and the obtained results. We discovered that our models are more suitable for technical texts, and that factored models improve the translation of complex texts more.

  5. Disintegration-Rate Determination by 4 {pi} Counting; Determination du taux de desintegrations par comptage 4 {pi}; Opredelenie skorosti raspada pri pomotsi 4 {pi} schetchikov; Determinacion de la velocidad de desintegracion por recuento 4 {pi}

    Energy Technology Data Exchange (ETDEWEB)

    Pate, Brian D [Chemistry Department, Washington University, St. Louis, MO (United States)

    1960-06-15

    The history of the development of the 4 {pi} counting method is reviewed. The unique properties of the 4 {pi} counter system are described and the criteria are specified which place disintegration rate measurements, made with the system, on an absolute basis. The types of radioactive decay process to which the method is applicable are outlined, together with the various errors to which a given measurement is liable. Departure of response probability from unity, absorption of radiation in the source-mounting system, and source self-absorption are discussed in detail. (author) [French] L'auteur fait l'historique des progres de la methode de comptage 4 {pi}. Il decrit les proprietes remarquables du dispositif de comptage 4 {pi} et precise les conditions dans lesquelles les mesures du taux de desintegration se font avec ce dispositif sur une base absolue. Il donne un apercu des types de processus de desintegration radioactive, ainsi que de diverses erreurs auxquelles est sujette une mesure donnee. Il examine en detail le cas ou la probabilite de reponse s'ecarte de l'unite, l'absorption des rayonnements dans le support de la source et l'autoabsorption de la source. (author) [Spanish] En la memoria el autor expone el desarrollo del metodo de recuento 4 {pi}. Describe las caracteristicas particulares de este metodo y explica las razones por las que las mediciones de la velocidad de desintegracion efectuadas segun ese procedimiento tienen un caracter absoluto. Se indican, asimismo, los tipos de procesos de desintegracion radiactiva a los que se puede aplicar el metodo, asi como los diferentes defectos de que puede adolecer una medicion determinada. Tambien se estudia detenidamente el caso en que la probabilidad de respuesta no es igual a la unidad, la absorcion de radiaciones en el soporte de la fuente y la autoabsorcion de la misma. (author) [Russian] Daetsya obzor istorii razvitiya metoda scheta s pomoshch'yu 4 {pi} schetchikov. Privoditsya opisanie unikal'nykh svojstv sistemy 4 {pi} schetchikov, usta navlivayutsya kriterii, kotorye stavyat izmereniya skorosti raspada, osushchestvlyaemye dannoj sistemoj, na sovershennuyu osnovu. V obshchikh chertakh daetsya opisanie vidov protsessa radioaktivnogo raspada, ego razlichnye pogreshnosti, kotorye mogut v dannom izmerenii. Podrobno obsuzhdaetsya otklonenie veroyatnoj chuvstvitel'nost i ot edinitsy, pogloshchennie radiatsii v sisteme ustanovki istochnika i samopogloshchenie istochnika. (author)

  6. Study of leading neutral pions: (interactions of cosmic rays with matter at energies above 3 TeV). Izuchenie lidiruyushchikh nejtral'nykh pionov (vzaimodejstvie kosmicheskikh chastits s veshchestvom pri ehnergiyakh vyshe 3 TeV)

    Energy Technology Data Exchange (ETDEWEB)

    Eremenko, Yu A

    1988-01-01

    An experimental plant consisting of a full-automatic ionized colorimeter of 44m{sup 2}, electronics of which is based on modern integral schemes and performed in CAMAC standard; of an x-ray emulsion chamber and of changeable dense target is described. The plant permits to measure the energy of a primary particle, as well as to study in detail a neutral component of products of strong indifferent target atoms. Experimental data on leading neutral mesons with energy from 10 GeV to the cosmic particle energies are analysed using the plant. A new experiment, which aim is the detection of interactions with anomalously great multiplicity and study of microstructure of extensive air showers, is suggested. 277 refs.

  7. SNP-SNP interactions of three new pri-miRNAs with the target gene PGC and multidimensional analysis of H. pylori in the gastric cancer/atrophic gastritis risk in a Chinese population.

    Science.gov (United States)

    Xu, Qian; Wu, Ye-Feng; Li, Ying; He, Cai-Yun; Sun, Li-Ping; Liu, Jing-Wei; Yuan, Yuan

    2016-04-26

    Gastric cancer (GC) is a multistep complex disease involving multiple genes, and gene-gene interactions have a greater effect than a single gene in determining cancer susceptibility. This study aimed to explore the interaction of the let-7e rs8111742, miR-365b rs121224, and miR-4795 rs1002765 single nucleotide polymorphisms (SNPs) with SNPs of the predicted target gene PGC and Helicobacter pylori status in GC and atrophic gastritis (AG) risk. Three miRNA SNPs and seven PGC SNPs were detected in 2448 cases using the Sequenom MassArray platform. Two pairwise combinations of miRNA and PGC SNPs were associated with increased AG risk (let-7e rs8111742 - PGC rs6458238 and miR-4795 rs1002765 - PGC rs9471643). Singly, miR-365b rs121224 and PGC rs6912200 had no effect individually but in combination they demonstrated an epistatic interaction associated with AG risk. Similarly, let-7e rs8111742 and miR-4795 rs1002765 SNPs interacted with H. pylori infection to increase GC risk (rs8111742: Pinteraction = 0.024; rs1002765: Pinteraction = 0.031, respectively). A three-dimensional interaction analysis found miR-4795 rs1002765, PGC rs9471643, and H. pylori infection positively interacted to increase AG risk (Pinteraction = 0.027). Also, let-7e rs8111742, PGC rs6458238, and H. pylori infection positively interacted to increase GC risk (Pinteraction = 0.036). Furthermore, both of these three-dimensional interactions had a dosage-effect correspondence (Ptrend < 0.001) and were verified by MDR. In conclusion, the miRNAs SNPs (let-7e rs8111742 and miR-4795 rs1002765) might have more superior efficiency when combined with PGC SNPs and/or H. pylori for GC or AG risk than a single SNP on its own.

  8. Interferences in an information circuit of relay protection and automatics with convergence with a line powering a direct current micromotor. Pomekhi v informatsionnoy tsepi releynoy zashchity i avtomatiki pri sblizhenii s liniey, pitayushchey mikrodvigatel postoyannogo toka

    Energy Technology Data Exchange (ETDEWEB)

    Azarov, V.S.; Yarnykh, L.V.

    1982-01-01

    The possibility is examined of development of interferences in information circuits of RP and AP with their convergence with lines powering micromotors used in control circuits. It is indicated that with start-up of the micromotors in the information circuits, adjustments can be made which exceed in level and duration the operating signal. Results are presented of experimental measurements and interferences in the circuit of block signalling of the EPP. A technique is obtained for calculating the developed interferences.

  9. La crisis de la seguridad pública y los resultados electorales en el retorno del PRI a Nuevo León. Un análisis retrospectivo

    Directory of Open Access Journals (Sweden)

    Laura Nelly Medellín Mendoza

    2016-01-01

    Full Text Available En este artículo se revisa la problemática reciente de la seguridad en la agenda pública de Nuevo León. Se destaca el efecto en los resultados electorales para el partido gobernante, tanto en elecciones intermedias como en la sucesión por la gubernatura. En ese sentido, el periodo de gobierno de 2003 a 2009 tuvo que enfrentar los altos índices delictivos con promulgación de leyes y políticas públicas, para marcar una reestructuración institucional en esta área. Se encontró evidencia de que el partido gobernante perdió espacios en los comicios intermedios en un contexto de gran inseguridad, pero esto no repercutió en la sucesión por la gubernatura, aunque los índices de homicidios por narcotráfico y la percepción de inseguridad ciudadana fueron altos hasta el término de la administración.

  10. Segmentácia trhu pri použití marketingových dát ako súčasť marketingovej stratégie

    OpenAIRE

    Nagyová-Tkáčová, Monika

    2013-01-01

    The thesis deals mainly with market segmentation which is very important part of marketing strategy. The theoretical part consists of general knowledge of marketing, a Customer relationship management (CRM), market segmentation and database marketing. A case study consists of the implementation of the theoretical knowledge into the practical part. The aims of the thesis are: an introduction to the issue of market segmentation, an importance of market segmentation in creating marketing strateg...

  11. MEDPREPARATY, PRIMENIMYYe PRI OSTROM OTRAVLENII UGARNYM GAZOM V SHAKHTAKH. ZAMENITELI PLAZMY KROVI. GOLUBAYA KROV' [MEDICATIONS WHICH CAN BE USED IN CASE OF CARBON MONOXIDE ACUTE POISONING IN THE MINES. BLOOD PLASMA SUBSTITUTES. BLUE BLOOD

    Directory of Open Access Journals (Sweden)

    Khromov A.V.

    2017-09-01

    Full Text Available Fires in the operational underground mine openings, as a rule, are catastrophic and lead to numerous victims. Due to the transfer of combustion products by the ventilation stream of the mine ventilation, they can be spread over long distances from the fire site and mortally injure miners along the course of the air stream. Essential assistance to miners in such emergency situations is provided by means of individual protection of miners, which are breathing apparatus of various types - so-called self-rescuers. There are cases anyway when they cannot protect from poisonous combustion products action. Then in the arsenal of mine rescuers there must be medical preparations capable of restoring the respiratory functions of the miners the fire victims. The purpose of this article is to familiarize mining specialists and VGSCh workers with the current state of medical preparations for carbon monoxide effect neutralization.

  12. Apkaltinamojo nuosprendžio priėmimo senaties samprata, juridinė prigimtis bei jos taikymo sąlygos pagal 1961 ir 2000 metų Baudžiamuosius kodeksus

    OpenAIRE

    Riaubaitė, Eglė

    2009-01-01

    In the present article the author provides an analysis of the justification of the existence of the limitation of a judgement of conviction and its legal origin. What is more, the author discusses the opinions of the researchers of criminal law on these issues, while the main focus is on the problem of the dissociation of the limitation of the judgement of conviction from the release from criminal responsibility. As the essence of each legal institute consists of the conditions of its applica...

  13. Beam-plasma interaction with an electron beam injecting into a symmetrically open plasma system; Electron beam relaxation. Puchkovo-plazmennoe vzaimodejstvie pri inzhektsii ehlektronnogo puchka v simmetrichno otkrytuyu plazmennuyu sistemu; Relaksatsiya ehlektronnogo puchka

    Energy Technology Data Exchange (ETDEWEB)

    Opanasenko, A V; Romanyuk, L I [AN Ukrainskoj SSR, Kiev (Ukrainian SSR). Inst. Yadernykh Issledovanij

    1989-10-01

    The relaxation of the electron beam with the electron density of 1-2 keV injected through the symmetrically open plasma system with the independent hot cathode Penning discharge is experimentally investigated. It is shown that the velocity distribution function of the electron beam changes after passing each wave generation zone induced by the beam. The contribution of different wave zones to the beam relaxation depends on the prehistory of the beam-plasma interaction and may be regulated by the selection of the plasma system parameters. By this way the complete relaxation of the electron beam can be achieved after the beam crossing the whole system.

  14. Problems of the agriculture radiology and radiobiology at the environment contamination by the young mixture of the nuclear fission products; Problemy sel'skokhozyajstvennoj radioehkologii i radiobiologii pri zagryaznenii okruzhayushchej sredy molodoj smes'yu produktov yadernogo deleniya

    Energy Technology Data Exchange (ETDEWEB)

    Prister, B S

    2008-07-01

    The basic problem on population radiation safety and the farm production at the environment contamination by the young mixture of the nuclear fission products are considered. In the field experiments, the conformities of the out of root plant contamination, kinetics of the irradiation absorbed doses and the biological effect of the NFP on the plants during the different ontogenesis phases are investigated. The kinetics of the nuclear fission product accumulation and drawing out from the cattle organisms of the most movable radionuclides in the biological systems; the distribution and kinetics of the absorbed irradiation doses formation and the nuclear fission products biological effect on the cattle organism is studied. The comparative quantitative assessment of the meaning of the basic formation factors of the radiation situation is produced.

  15. Substrate-dependent post-annealing effects on the strain state and electrical transport of epitaxial La5/8-yPryCa3/8MnO3 films

    International Nuclear Information System (INIS)

    Hu, Sixia; Wang, Haibo; Dong, Yongqi; Hong, Bing; He, Hao; Bao, Jun; Huang, Haoliang; Yang, Yuanjun; Luo, Zhenlin; Yang, Mengmeng; Gao, Chen

    2014-01-01

    Large scale electronic phase separation (EPS) between ferromagnetic metallic and charge-ordered insulating phases in La 5/8-y Pr y Ca 3/8 MnO 3 (y = 0.3) (LPCMO) is very sensitive to the structural changes. This work investigates the effects of post-annealing on the strain states and electrical transport properties of LPCMO films epitaxially grown on (001) pc SrTiO 3 (tensile strain), LaAlO 3 (compressive strain) and NdGaO 3 (near-zero strain) substrates. Before annealing, all the films are coherent-epitaxial and insulating through the measured temperature range. Obvious change of film lattice is observed during the post-annealing: the in-plane strain in LPCMO/LAO varies from −1.5% to −0.1% while that in LPCMO/STO changes from 1.6% to 1.3%, and the lattice of LPCMO/NGO keeps constant because of the good lattice-match between LPCMO and NGO. Consequently, the varied film strain leads to the emergence of metal-insulator transitions (MIT) and shift of the critical transition temperature in the electrical transport. These results demonstrate that lattice-mismatch combined with post-annealing is an effective approach to tune strain in epitaxial LPCMO films, and thus to control the EPS and MIT in the films

  16. Determining the boron concentration during long-term cooling of the reactor core after large loss of coolant accident; Dolocenje koncentracij bora pri dolgotrajnoem hladjenju sredice po veliki izlivni nezgodi

    Energy Technology Data Exchange (ETDEWEB)

    Mavko, B; Ravnki, M [Institut Jozef Stefan, Ljubljana (Yugoslavia)

    1988-07-01

    Critical boron concentration before and after postulated loss of coolant accident with long-term cooling recirculation was calculated for cycle 6 of Krsko NPP. The limiting boron concentration curve of containment sump was calculated for equilibrium conditions. The results were analysed and showed that the boron concentration in refueling water storage tank and in safety injection accumulators should be increased from 2000 to 2100 ppm in 6th cycle. In the consequence corresponding chapters of the NPP Krsko technical Specifications were changed as well. (author)

  17. Boundary element analysis of stress due to thermal shock loading or reactor pressure vessel nozzle; Napetostna analiza pri nestacionarni termicni obremenitvi cevnega prikljucka reaktorske tlacne posode z metodo robnih elementov

    Energy Technology Data Exchange (ETDEWEB)

    Kramberger, J; Potrc, I [Tehniska fakulteta, Maribor (Yugoslavia)

    1989-07-01

    Apart from being exposed to the primary loading of internal pressure and steady temperature field, the reactor pressure vessel is also subject to various thermal transients (thermal shocks). Theoretical and experimental stress analyses show that severe material stresses occur in the nozzle area of the pressure vessel which may lead to defects (cracks). It has been our aim to evaluate these stresses by the use of the Boundary Element method. (author)

  18. Radionuclide investigations of the hormonal reflection of warm stress in cancer patients under whole body guided hyperthermia. Radionuklidnye issledovaniya gormonal'nykh proyavlenij teplovogo stressa u onkologicheskikh bol'nykh pri obshchej upravlyaemoj gipertermii

    Energy Technology Data Exchange (ETDEWEB)

    Prokhorova, V I; Zhavrid, Eh A; Fradkin, S Z; Tsyrus' , T P; Shitikov, B D; Kosheleva, M I

    1991-01-01

    The results of the radioimmunoassay of ACTH, ST, hydrocortisone, glucagon, C-peptide, insulin and cyclic nucleotides in 180 patients with advanced and metastatic melanomas, soft tissue sarcomas, lung cancers and renal cell carcinomas testify to the development of the syndrome of endocrine hyperfunction in patients under whole-body guided hyperthermia and artificial hyperglycemia as well as of functional pancreas insufficiency. The data presented form a biochemical basis for working out measures to optimally carry out whole-body hyperthermia and artificial hyperglycemia treatment, aimed at increasing the range of indications for its use in clinical oncology.

  19. PROJEÇÃO DA PENETRAÇÃO DO HOME BROKER NO MERCADO DE CAPITAIS BRASILEIRO ATRAVÉS DOS MODELOS LINEAR, FISHER-PRY E GOMPERTZ DOI:10.7444/fsrj.v2i1.46

    OpenAIRE

    Kawamoto, Carlos

    2010-01-01

    This paper aims to discuss the theories of internationalization and competitiveness, the positioning of a Brazilian company from agribusiness industry, exporting meat and food that has become a major global player in this industry JBS - Friboi. This company has been internationalized very fast in recent years and become a global leader in beef production, the second to the production of chicken meat and third largest producer of pork in the U.S. (JBS, 2010). The case is emblematic of JBS when...

  20. Calculation and measurement of the uranium temperature during irradiation in the experimental channel in the reflector of the RA reactor - Annex 15; Prilog 15 - Proracun i merenje temperature urana pri ozracivanju u eksperimentalnom kanalu reflektora na reaktoru RA

    Energy Technology Data Exchange (ETDEWEB)

    Nikolic, M; Strugar, P; Mitrovic, S [Institute of Nuclear Sciences Boris Kidric, Reaktor RA, Vinca, Beograd (Serbia and Montenegro)

    1964-12-15

    Upon demand of the Laboratory for fuel reprocessing, six domestic metal uranium pellets were exposed to neutron flux ( 4 - 5 10{sup 12} n cm{sup -2} sec {sup -1}) in the RA reactor. Irradiation of fuel demanded special analyses for safety reasons. Weight of the fuel pellets was 13 - 20 g, having diameter 20 mm. pellets were placed in leak tight aluminium capsules with helium. The irradiation was dome in the aluminium experimental channel in the graphite reflector. Theoretical study has shown that the expected fuel temperature in the core could be up to 300 deg C at nominal power. For that reason temperature of the capsule with the uranium sample was measured during irradiation by using thermocouples. Results showed the discrepancy between measure and calculated values to be about 30%.

  1. Rare-Earth-Rich Alloys; Alliages a Teneur Elevee en Terres Rares; Splavy, obogashchennye redkozemel'nymi ehlementami; Aleaciones Ricas en Tierras Raras

    Energy Technology Data Exchange (ETDEWEB)

    Copeland, M.; Kato, H. [Albany Metallurgy Research Center, Bureau of Mines, United States Department of the Interior, Albany, OR (United States)

    1964-06-15

    solubilidad solida del metal aleado con la tierra rara y estudiaron la oxidacion y la corrosion. Los autores no observaron ningun aumento de la resistencia a la oxidacion en la atmosfera que pudiera atribuirse a la aleacion; es mas, la mayor parte de las adiciones ejercieron efectos nocivos. El aluminio mejoro notablemente la resistencia a la corrosion en agua caliente de las tierras raras sometidas a ensayo; la adicion de otros metales no pertenecientes al grupo de las tierras raras tambien aumento esa resistencia, pero en menor grado. (author) [Russian] Redkozemel'nye metally s vysokim secheniem zahvata teplovyh nejtronov predstavljajut interes dlja upravlenija reaktorami, proizvodjashhimi jelektrojenergiju; odnako oni podverzheny korrozii. I s hodja iz toj predposylki, chto neredkozemel'nye metally mogut byt' splavleny s disproziem, orbiem, gadoliniem i samariem i mogut uluchshit' ih svojstva, izucheny vlijanija redkozemel'nyh metallov opredelennyh dobavok ih na splavy. Izuchena rastvorimost' n e redkozemel'nyh metallov cirkonija, vanadija, hroma, zheleza, nikelja, medi, aljuminija i kremnija v disprozii, jerbii, gadolinii i samarii, a takzhe ih vlijanie na tochki plavlenija, preobrazovanie v tverdoe telo i korrozijnye svojstva. Podgotovleny diagrammy faz vplot' do pervyh soedinenij, obogashhennyh redkozemel'nymi jelementami ili jevtetik, kotorye voznikli vpervye. Po zavershenii jetoj chasti raboty byli sozdany splavy, obrabotany pri vysokoj temperature s cel'ju poluchenija maksimal'noj rastvorimosti tverdyh neredkozemel'nyh jelementov, dobavljaemyh dlja splava, i byli provedeny ispytanija na okislenie i korroziju. Pri splavlenii ne nabljudalos' uluchshenija redkozemel'nyh metallov v otnoshenii stojkosti k okisleniju na vozduhe, i fakticheski v bol'shinstve dobavki okazalis' vrednymi. Aljuminij v znachitel'noj stepeni uluchshil soprotivljaemost' k korrozii ot gorjachej vody v aprobirovannyh redkozemel'nyh jelementah; drugie neredkozemel'nye metally pri dobavkah uluchshili

  2. Critical experiments and nuclear calculations - LAMPRE-I; Experiences critiques et calculs nucleaires concernant le LAMPRE-I; Kriticheskie opyty i yadernye raschety - LAMPRE-I; Experimentos criticos u calculos nucleares relativos al LAMPRE-I

    Energy Technology Data Exchange (ETDEWEB)

    Battat, M E [Los Alamos Scientific Laboratory, University of California, Los Alamos, NM (United States)

    1962-03-15

    1 megavatt, aktivnaya zona kotorogo soderzhit rasplavlennyj splav plutoniya i zheleza (90 atomnykh protsentov plutoniya, 10 atomnykh protsentov zheleza pri tochke plavleniya v 410{sup o} TS). Regulirovka reaktivnosti obespechena putem ispol'zovaniya otrazhatelya iz nerzhaveyushchej stali i chetyrekh nikelievykh reguliruyushchikh sterzhnej, raspolozhennykh vne aktivnoj zony. Byli provedeny opyty pri temperaturakh aktivnoj zony v 80, 160 i 480 deg. TS s tem, chtoby opredelit' kriticheskuyu massu i tsennost' otrazhatelya pri kazhdoj iz ehtikh temperatur. Byli izmereny temperaturnyj koehffitsient reaktivnosti, a takzhe tsennost' reguliruyushchikh sterzhnej po izmereniyam perioda. Byli sdelany raschety s ispol'zovaniem metoda S{sub n} dlya resheniya problemy perenosa nejtronov, chtoby opredelit' osnovnye yadernye parametry sistemy. Sravnenie mezhdu raschetnymi i izmerennymi velichinami parametrov takikh kak temperaturnyj koehffitsient, tsennost' reguliruyushchikh ehlementov i kriticheskaya massa predstavlyayut takzhe interes v otsenke nadezhnosti proektnykh raschetov. (author)

  3. Dissecting the interactions of SERRATE with RNA and DICER-LIKE 1 in Arabidopsis microRNA precursor processing

    KAUST Repository

    Iwata, Yuji; Takahashi, Masateru; Fedoroff, Nina V.; Hamdan, Samir

    2013-01-01

    ). In the present study, we examined primary miRNA precursor (pri-miRNA) processing by highly purified recombinant DCL1 and SE proteins and found that SE is integral to pri-miRNA processing by DCL1. SE stimulates DCL1 cleavage of the pri-miRNA in an ionic strength

  4. Behavior and sensitivity of an optimal tree diameter growth model under data uncertainty

    Science.gov (United States)

    Don C. Bragg

    2005-01-01

    Using loblolly pine, shortleaf pine, white oak, and northern red oak as examples, this paper considers the behavior of potential relative increment (PRI) models of optimal tree diameter growth under data uncertainity. Recommendations on intial sample size and the PRI iteractive curve fitting process are provided. Combining different state inventories prior to PRI model...

  5. Cobalt-60 and Caesium-137 Gamma Sources; Sources de rayonnement gamma au cobalt-60 et au cesium-137; Gamma-istochniki iz kobal'ta-605 i tseziya-137; Fuentes gamma de cobalto-60 y de cesio-137

    Energy Technology Data Exchange (ETDEWEB)

    Kulish, E E; Fradkin, G M [Academy of Sciences of the USSR, Moscow, Union of Soviet Socialits Republics (Russian Federation)

    1960-07-15

    cobalto-60 y cesio-137 producidas en la Union Sovietica y se examinan algunos problemas de orden tecnologico planteados por su fabricacion. En el informe figuran una serie de datos sobre las propiedades de las radiaciones emitidas por las fuentes de {sup 60}Co y {sup 137}Cs y del material con que estas se fabrican. Se facilitan informaciones sobre la influencia que la magnitud del flujo neutronico y las caracteristicas geometricas de la muestra ejercen sobre la actividad de la fuente; el informe tambien contiene datos sobre el rendimiento de los distintos isotopos de cesio obtenidos por fision de los nucleos de uranio. Se examinan los procedimientos para encerrar hermeticament e las fuentes y se facilita una lista completa de las fuentes utilizadas en la Union Sovietica, con indicacion de sus caracteristicas geometricas y de su actividad. Por ultimo, se hace un estudio comparativo de las fuentes de {sup 60}Co y {sup 137}Cs. (author) [Russian] V doklade privodyatsya osnovnye tekhnicheskie kharakteristiki vypuska- emykh v SSSR gamma-istochnikov na osnove kobal'ta-60 i tseziya-137, a takzhe rassmatrivayutsya nekotorye voprosy tekhnologii ikh proizvodstva. Doklad soderzhit svedeniya o sostave izlucheniya izotopov Co{sup 60} i Cs{sup 137} i syr'ya, iz kotorogo oni izgotavlivayutsya . Privodyatsya dannye o zavisimosti aktivnosti kobal'tovykh istochnikov ot velichiny potoka nejtronov i geometricheskikh razmerov obraztsa, a takzhe dannye o velichine vykhoda izotopov tseziya pri delenii yader urana. Dalee rassmatrivaetsya vopros o germetizatsii istochnikov i privoditsya polnaya nomenklatura vypuskaemykh v SSSR istochnikov s ukazaniem ikh geometricheskikh razmerov i velichiny aktivnosti. V kontse provoditsya nekotoroe sravnenie istochnikov Co{sup 60} i Cs{sup 137}. (author)

  6. Thermal Vibrations of Beta-Brass and the Order-Disorder Transition; Vibrations Thermiques dans le Laiton Beta et Transformation Ordre-Desordre; Teplovye kolebaniya beta-latuni i perekhod iz uporyadochennogo sostoyaniya v razuporyadochennoe; Vibraciones Termicas del Laton Beta y Transicion Orden-Desorden

    Energy Technology Data Exchange (ETDEWEB)

    Dolling, G.; Gilat, G. [Chalk River Nuclear Laboratories, Chalk River, ON (Canada)

    1965-04-15

    reciproco, que presentan acusados aumentos de la anchura energetica a la temperatura de transicion. Estos efectos no se han podido explicar aun de manera logica. (author) [Russian] Nabljudenija za obychnymi formami kolebanija uporjadochennogo splava medi i cinka ({beta}-latun') pri 296 Degree-Sign K provodilis' s pomoshh'ju kogerentnogo odno fononnogo rassejanija medlennyh nejtronov na monokristallicheskih obrazcah. Dlja izmerenija chastot kolebanij, rasprostranjajushhihsja vdol' vysokosimmetrichnyh napravlenij [00{zeta}], [{zeta}{zeta}0], [{zeta}{zeta}{zeta}{zeta}] i [ Vulgar-Fraction-One-Half Vulgar-Fraction-One-Half {zeta}] ispol'zovalsja trehosnyj kristallicheskij spektrometr na reaktore NRU. Krivye dispersii napominajut krivye dispersii prostogo ob{sup e}mno-centrirovannogo kubicheskogo kristalla, naprimer Na, za iskljucheniem togo, chto pojavljajutsja nekotorye vyrozhdenija, v osnovnom vvidu razlichija mezhdu vtorym blizhajshim sosedom Si-Si i silami Zn-Zn. Naprimer, my nahodim dve razlichnye formy volnovogo vektora (0.5, 0.5, 0.5) (v obratnyh edinicah reshetki), chastoty kotoryh sootvetstvenno sostavljajut (4,21 {+-}0,06) i (4,93 10) * 10{sup 12} gerc. Kratko upominajutsja modeli mezhatomnyh sil, kotorye predstavljajut udovletvoritel'noe opisanie rezul'tatov, poluchennyh pri 296 Degree-Sign K. Nekotorye normal'nye formy kolebanij izucheny pri povyshennyh temperaturah, osobenno v oblasti perehoda iz uporjadochennogo sostojanija v neuporjadochennoe pri temperature priblizitel'no 727 Degree-Sign K. V obshhej strukture krivyh dispersij ne otmechaetsja znachitel'nyh izmenenij v rezul'tate ischeznovenija porjadka dal'nego rasstojanija pri jetoj temperature, hotja razlichnye ''rasshheplenija'', nabljudaemye pri 296 Degree-Sign K, rasplyvajutsja v bolee ili menee postojannye ''polosy'' chastot. Pri povyshenii temperatury chastoty v celom umen'shajutsja, a jenergeticheskie shiriny uvelichivajutsja. Jeti izmenenija proishodjat plavno, za iskljucheniem dvuh prodol

  7. Rapid Estimation of Fast-Neutron Doses following Radiation Exposure in Criticality Accidents: The S{sup 32}(n, p)P{sup 32} Reaction in Body Hair; Prompte Evaluation des Doses de Neutrons Rapides apres une Exposition au Rayonnement a la Suite d'Accidents de Criticite: Reaction {sup 32}S(n, p){sup 32}P dans le Systeme Pileux; 0411 042b 0421 0414 ; Evaluacion Acelerada de Dosis de Neutrones Rapidos Despues de una Irradiacion Consecutiva a un Accidente de Criticidad: La Reaccion {sup 32}S(n, p){sup 32}P en el Pelo

    Energy Technology Data Exchange (ETDEWEB)

    Petersen, D. F. [Los Alamos Scientific Laboratory, University of California, Los Alamos, NM (United States)

    1965-06-15

    han deducido para cada caso, concordaban satisfactoriamente con las determinaciones independientes de las fisiones totales efectuadas por procedimientos analiticos clasicos. Para obtener rapidamente la dosis aproximada de neutrones rapidos, basta multiplicar por 0,49 la actividad del {sup 32}P, expresada en des/min. g de pelo a T = 0 y medida con cualquier sistema de recuento de rendimiento conocido, para obtener la dosis neutronica en rad correspondiente al 'nivel azufre'. (author) [Russian] Sochetanie unikal'nogo himicheskogo sostava, opredelennogo anatomicheskogo stroenija i dostupnosti, delaet chelovecheskij volos poleznym materialom dlja bystroj ocenki doz bystryh nejtronov, poluchaemyh personalom, svjazannym s rabotoj v avarijnyh uslovijah v kriticheskom sostojanii. V chelovecheskom volose otmechaetsja odno i to zhe soderzhanie sery, nezavisimo ot pola, cveta ili raspredelenija. Velichina 0,048 {+-} 0,005g sery na 1 g volosa ukazyvaet, chto 5 % mogut byt' ispol'zovany v kachestve standartnoj cifry dlja harakteristiki soderzhanija sery pri predvaritel'nyh ocenkah dozy bez vnesenija popravok na analiz soderzhanija sery v volosah otdel'nyh lic. Pri otsutstvii legko udaljaemogo vneshnego zagrjaznenija v volosah soderzhitsja menee 0,025 procentov fosfora. Poskol'ku poperechnye sechenija aktivacii fosfora i sery odinakovy, fakticheskoe otsutstvie fosfora daet vozmozhnost' ispol'zovat' volos v kachestve porogovogo detektora dlja biologicheskoj sery pri izmerenii potoka nejtronov s jenergiej svyshe 2,5 Mjev s pomoshh'ju reakcii S{sup 32}(n, p)P{sup 32}. Razrabotany metody dlja bystrogo vydelenija radiohimicheski chistogo R{sup 32} s cel'ju obespechenija klinicheski poleznyh ocenok obluchenija bystrymi nejtronami postradavshih vo vremja avarij v kriticheskom sostojanii. Pri otsutstvii bol'shogo zagrjaznenija produktami delenija predvaritel'nye ocenki mozhno provesti v techenie dvuh chasov. Dlja osushhestvlenija bolee shirokoj procedury po udaleniju produktov delenija

  8. Cross-Sections for Low-Energy Neutron-Induced Fission; Sections Efficaces de Fission pour des Neutrons de Faible Energie; 0421 0415 0427 0415 041d 0418 042f 0414 0415 041b 0415 041d 0418 042f , 0412 042b 0417 0412 0410 041d 041d 041e 0413 041e 041d 0415 0419 0422 0420 041e 041d 0410 041c 0418 041d 0418 0417 K 041e 0419 042d 041d 0415 0420 0413 0418 0418 ; Secciones Eficaces en la Fision Inducida por Neutrones de Baja Energia

    Energy Technology Data Exchange (ETDEWEB)

    Rae, E. R. [Atomic Energy Research Establishment, Harwell, Didcot, Berks. (United Kingdom)

    1965-07-15

    tehnologii proizvodstva jadernoj jenergii. Harakter izmenenija velichiny sechenij v zavisimosti ot jenergij nejtronov, massy i zarjada jader misheni takzhe daet znachitel'nuju informaciju ot nositel'no struktury tjazhelyh jader. V sluchae termicheski deljashhegosja jadra misheni, po mere uvelichenija jenergii nejtronov, vjolichina sechenija projavljaet vnachale obratnuju zavisimost' ot skorosti, smenjaemuju oblast'ju, v kotoroj pojavljajutsja ostrye piki rezonansov i, nakonec, sploshnoj oblast'ju, v kotoroj velichina sechenij sravnitel'no plavno to uvelichivaetsja, to umen'shaetsja. Vse jeti javlenija mozhno v principe ob{sup j}asnit', odnako,nekotorye harakteristiki dannyh okazalis' ochen' trudnymi dlja kolichestvennoj interpretacii. Vo vremja poslednih izmerenij sechenij, vyzvannyh potrebnostjami reaktornoj tehniki, vnimanie bylo sosredotocheno na uluchshenii razreshenija jenergii i tochnosti poluchaemyh dannyh otnositel'no toplivnyh materialov. Jeto privelo k bolee podrobnomu izucheniju rezonansnoj oblasti, kotoraja predstavljaet znachitel'nyj interes pri raschetah jeffekta Dopplera dlja reaktorov. V rezul'tate bolee tochnyh izmerenij pri dovol'no povyshennyh jenergijah vyjavleno nalichie v nekotoryh sluchajah znachitel'nyh velichin sechenij delenija nizhe tak nazyvaemogo poroga delenija. Tshhatel'nye izmerenija takogo haraktera, v svoju ochered', porodili interes k interpretacii sechenij s tochki zrenija jadernyh modelej na tverdoj kolichestvennoj osnove. Namechajutsja osnovnye cherty sechenij delenija, vyzvannogo nejtronami, i ih interpretacii. Nekotoryj upor delaetsja na poslednie usovershenstvovanija v kachestve izmerenij i na popytki kolichestvennoj interpretacii'nekotoryh aspektov dannyh. (author)

  9. Aspects of Reactor Physics Research at the Victoria University of Manchester; Quelques Aspects des Experiences de Physique des Reacteurs a l'Universite Victoria de Manchester; Aspekty ehksperimental'nykh issledovanij po fizike reaktorov v universitete viktorii v manchestere; Trabajos de Fisica Experimental con Reactores Efectuados en la Universidad Victoria de Manchester

    Energy Technology Data Exchange (ETDEWEB)

    Harris, M. J.; Walton, D. G. [Victoria University of Manchester (United Kingdom)

    1964-02-15

    ] Otdel jadernoj tehniki v Manchesterskom universitete sozdan v 1959 godu. Postepenno rasshirjajutsja issledovanija v aspiranture po fizike reaktorov. Osnovnoe vnimanie v jeksperimental'nyh issledovanijah so dnja sozdanija Otdela koncentriruetsja na sistemah na obychnoj vode i uskoritele, privodjashhem v dejstvie jeksponencial'nuju ustanovku prirodnyj uran -obychnaja voda. Daetsja obzor prodelannoj raboty, obsuzhdajutsja poluchennye rezul'taty, dajutsja nametki raboty v budushhem, opisyvajutsja razlichnye jeksperimental'nye metody, dajushhie jekonomiju v zatratah truda. Diffuzija nejtronov v obychnoj vode izuchalas' s pomoshh'ju impul'snyh i stacionarnyh istochnikov. Vo vremja provedenija pervyh iz upomjanutyh issledovanij osobyj upor delalsja na polnyj garmonicheskij analiz v takoj stepeni, chto fakticheski izuchalis' bolee vysokie formy v protivopolozhnost' samoj rannej rabote, kotoraja napravljalas' na ih ustranenie. Vtorye iz upomjanutyh issledovanij koncentrirujutsja na ustranenii vsjakogo vozdejstvija vvidu primenenija istochnika i detektora konechnyh razmerov, nalichija rezonansnoj aktivacii, vozmushhenija potoka i t.d. Obsuzhdajutsja i sravnivajutsja rezul'taty oboih issledovanij. Daetsja opisanie ochen' tshhatel'nyh izmerenij poperechnyh sechenij pogloshhenija impul'snym metodom s uchetom ustranenija garmonicheskih i drugih vozdejstvij, po-vidimomu, privodjashhih k vozniknoveniju oshibok: Spektry teplovyh nejtronov v ''otravlennoj'' obychnoj vode izmerjajutsja kak sredstvo dlja issledovanija i razvitija metoda integral'nogo detektora. Pri obsuzhdenii budut vkljucheny nekotorye interesnye momenty, svjazannye s jekonomiej vremeni i sredstv. Izucheny metody aktivacii bol'shih fol'g i metody scheta dlja izmerenija usrednennyh v prostranstve plotnostej nejtronov i takim obrazom rjada parametrov reaktora. Voznikli nekotorye interesnye momenty, v chastnosti v svjazi so spektral'nymi izmerenijami. Dannyj metod daet vozmozhnost' provodit' mnogie issledovanija v oblasti

  10. Molecular Dynamics Investigated by Neutron Scattering; Etude de la Dynamique Moleculaire au Moyen de la Diffusion des Neutrons; 0418 0421 0421 041b 0415 0414 041e 0412 0410 041d 0418 0415 041c 041e 041b 0415 041a 0423 041b 042f 0420 041d 041e 0419 0414 0418 041d 0410 041c 0418 041a 0418 0421 041f 041e 041c 041e 0429 042c 042e 0420 0410 0421 0421 0415 042f 041d 0418 042f 041d 0415 0419 0422 0420 041e 041d 041e 0412 ; Estudio de la Dinamica Molecular por Dispersion Neutronica

    Energy Technology Data Exchange (ETDEWEB)

    Janik, J. A. [Institute for Nuclear Physics, Cracow (Poland)

    1965-06-15

    spektroskopii i izmerenij udel'noj teploemkosti. Rassmatrivaetsja takzhe vopros o predele vozmozhnosti ocenki vrashhenija na osnovanii rezul'tatov izmerenija obshhih nejtronnyh sechenij. Krome togo proizvoditsja sravnenie vrashhatel'noj dinamiki grupp NH{sub 4} v NH{sub 4}CIO{sub 4} i grupp H{sub 3}O v H{sub 3}OCIO{sub 4} na osnove rezul'tatov jeksperimentov po neuprugomu rassejaniju nejtronov. Svobodnoe vrashhenie gruppy NH4 v hlornokislom ammonii bylo polucheno dazhe pri takih nizkih temperaturah, kak temperatura zhidkogo azota. Dlja H{sub 3}OCIO{sub 4} bylo obnaruzheno krutil'noe kolebanie gruppy N3O s chastotoj 497 sm{sup 1} . Takim obrazom, nesmotrja na identichnost' kristallicheskih reshetok NH{sub 4}CIO{sub 4} i H{sub 3}OCIO{sub 4}, dinamika grupp NH{sub 4} i H{sub 3}O javljaetsja razlichnoj. Jeti rezul'taty sravnivajutsja s rezul'tatami, poluchennymi s pomoshh'ju spektroskopii Ramana i jadernogo magnitnogo rezonansa. I, nakonec, rjad drugih veshhestv rassmatrivaetsja s tochki zrenija molekuljarnoj dinamiki. (author)

  11. Short-Lived Isotopes Used as Tracers in Industry (with Special Reference to Swedish Industry); Emploi de Radioindicateurs de Courte Periode a l'Echelle Industrielie dans les Usines Suedoises; ПРИМЕНЕНИЕ КОРОТКОЖИВУЩИХ ИЗОТОПОВ В ПРОМЫШЛЕННОСТИ В КАЧЕСТВЕ МЕЧЕНЫХ АТОМОВ; Isotopos de Periodo Corto Utilizados Como Indicadores en la Industria Sueca

    Energy Technology Data Exchange (ETDEWEB)

    Erwall, L. G.; Forsberg, H. G.; Ljunggren, K. [Isotoptekniska Laboratoriet, Stockholm (Sweden)

    1963-03-15

    ; - obnaruzhenie utechek. Chtoby svesti k minimumu zagrjaznenija okonchatel'nyh produktov pri provedenii mnogih iz jetih issledovanij, bylo sushhestvenno vazhno ispol'zovat' korotkozhivushhie mechenye atomy. V bol'shinstve sluchaev primenjalis' metody fizicheskogo mechenija s vozmozhnost'ju vybora samyh raznoobraznyh mechenyh atomov. Tem samym predstavljaetsja vozmozhnym vybirat' mechenye atomy s podhodjashhim poluperiodom raspada i s nuzhnymi harakteristikami izluchenija. Esli ispol'zuemyj radioizotop obladaet bol'shim secheniem aktivacii nejtronov, chto prisushhe perechislennym vyshe izotopam, to issledovatel'skij reaktor mozhet dat' dostatochnyj potok nejtronov dlja proizvodstva aktivnostej indikatorov porjadka do neskol'kih kjuri pri uslovii, chto ne trebuetsja dlja nih znachitel'noj udel'noj aktivnosti. V Shvecii v 1960 godu byl obrazovan ob{sup e}dinennyj promyshlennyj institut i laboratorija izotopnyh metodov dlja provedenija issledovanij i rabot po razvitiju, a takzhe dlja okazanija pomoshhi promyshlennym predprijatijam posredstvom predostavlenija konsul'tacij, personala i neobhodimyh priborov po promyshlennomu primeneniju radioizotopov. (author)

  12. Neutron Investigation of Magnon Spectrum in Haematite; Etude du Spectre de Magnons dans l'Hematite, au Moyen des Neutrons; Nejtronnoe issledovanie spektra magnona v gematite; Estudio, por Metodos Neutronicos, del Espectro de Magnones en la Hematita

    Energy Technology Data Exchange (ETDEWEB)

    Dimitrijevic, Z.; Rzany, H.; Todorovic, J.; Wanic, A. [Institute for Nuclear Physics Cracow (Poland)

    1965-04-15

    -Sign y 126 Degree-Sign , respectivamente. Un acuerdo satisfactorio entre la teoria y los datos experimentales disponibles se tiene cuando SJ{sub 1} = SJ{sub 2} = 5,1 meV. Ademas de la rama magnonica acustica, los calculos han revelado la existencia de una rama optica, pero el estudio de esta no pudo llevarse a cabo por el metodo de difraccion neutronica. (author) [Russian] byli provedeny v Vincha na reaktore RA s ispol'zovaniem kristallicheskogo nejtronnogo spektrometra. Rassejanie monohromaticheskih nejtronov ({lambda} = 1.314A) proizvodilos' na krupnom monokristalle gematita ({alpha}-Fe{sub 2}O{sub 3}). Issledovalis' uglovye raspredelenija neuprugo rassejannyh nejtronov. Dlja rjada razlichnyh nepravil'nyh uglov kristalla AO byla izmerena shirina G puchka rassejannyh nejtronov (tak nazyvaemogo konusa rassejanija). Jetot konus rassejanija byl pripisan javleniju poverhnostnogo rassejanija magnona vokrug tochki obratnoj reshetki [1,1,1] . Dlja rjada skorostej magnona byla rasschitana i sravnena s jeksperimental'nymi tochkami zavisimost' G ot nepravil'nogo ugla. Ustanovleno, chto velichina skorosti v napravlenii [111] ravna 25,5 11,0 km/sek. Byla obnaruzhena strukturnaja anizotropija dispersionnogo sootnoshenija magnona. Bylo najdeno, chto skorost' javljaetsja bolee vysokoj v napravlenijah rasprostranenija parallel'nyh osi [111] i chto kachestvenno ona horosho soglasuetsja s bolee rannimi izmerenijami (Riste i dr.) dajushhimi v = 38km/sek. Obnaruzhit' v akusticheskoj oblasti jenergii magnona sushhestvovanie razryva jenergeticheskoj krivoj Eg ne udalos'. Bylo rasschitano, chto velichina E dolzhna byt' nizhe 1 Mjev. Pri pomoshhi formalizma Uollase byli rasschitany dispersionnye sootnoshenija magnona v gematite. Pri jetom ishodili ije predpolozhenija, chto sushhestvujut dva ne stremjashhihsja k nulju integrala obmena J{sub 1} i J{sub 2}. J{sub 1} i J{sub 2} oznachajut svjaz' sverhobmennoj jenergii mezhdu spinami sosednih ionov zheleza, svjazannyh ionom kisloroda. Ugly svjazi

  13. Recent Methods in Crystal Spectrometry; Methodes Recentes de Spectrometrie a Cristal; 041d 041e 0412 042b 0415 041c 0415 0422 041e 0414 042b 041a 0420 0418 0421 0422 0410 041b 041b 0418 0427 0415 0421 041a 041e 0419 0421 041f 0415 041a 0422 0420 041e 041c 0415 0422 0420 0418 0418 ; Metodos Recientes de Espectrometria Cristalina

    Energy Technology Data Exchange (ETDEWEB)

    Iyengar, P. K. [Atomic Energy Establishment Trombay, Bombay (India)

    1965-06-15

    raspolozhenija spektrometra. Dlja provedenija rabot po neuprugomu rassejaniju shiroko primenjalsja trehosnyj spektrometr. On sostojal iz kristallicheskogo monohromatora i kristallicheskogo analizatora. Geometricheskoe raspolozhenie i dispersija v rezul'tate nelinejnogo izmenenija ugla s izmeneniem dliny volny privodjat k jeffektam fokusirovki. Jetot vopros rassmatrivaetsja dlja razlichnyh sluchaev, naprimer uprugoj difrakcii i nejtronnyh grupp, svjazannyh s vzaimodejstvijami odinochnogo fonona. V kachestve analizatora ochen' jeffektivno ispol'zovalsja polikristallicheskij fil'tr, ob{sup e}dinennyj s detektorom, chto privodit k uvelicheniju intensivnosti pri izmerenii neuprugogo rassejanija. Edinstvennoj trudnost'ju ego primenenija dlja izmerenija kogerentno rasseivajushhih obrazcov javljaetsja neopredelennost' s peredachej impul'sa. V poslednee vremja dlja provedenija rabot po neuprugomu rassejaniju primenjaetsja kombinacija, sostojashhaja iz dvuh fil'trov s razlichnymi porogami i odnogo schetchika dlja izmerenija obratnogo rassejanija nejtronov ot vtorogo fil'tra, obrazujushhego okno. Jeto obespechivaet luchshuju razreshajushhuju sposobnost' po jenergii i pozvoljaet opredeljat' peredachu impul'sa. Izlagajutsja nekotorye rezul'taty izmerenij harakteristik fil'trov jetogo tipa. Blagodarja opredeleniju volnovyh vektorov obnaruzhennyh nejtronov, okoshechnyj fil'tr s uspehom primenjalsja dlja opredelenija krivyh dispersii fononov v kristallicheskih reshetkah. Vozmozhnost' ispol'zovanija dvuhosnogo pribora vmesto trehosnogo privedet k uproshheniju jetogo spektrometra. Pri primenenii jetogo ustrojstva ispol'zovalsja metod ''postojannoj Q''. Budut opisany tipichnye izmerenija. Osnovnym nedostatkom metoda kristallicheskoj spektrometrii javljaetsja to, chto odnovremenno ispol'zuetsja tol'ko odin ugol rassejanija. Jetot nedostatok mozhno ustranit' putem primenenija mnogoplechevogo spektrometra. Pokazany konstrukcija i ispol'zovanie mnogoplechevogo spektrometra dlja izmerenija

  14. The place of Political Risk Insurance in the political risk management strategy of multinational corporations

    Directory of Open Access Journals (Sweden)

    Violeta Iftinchi

    2016-06-01

    Full Text Available Confronted with a variety of political risks that affect their international activities, multinational corporations (MNCs can use Political Risk Insurance (PRI as a method to mitigate some of those risks. The aim of this article is to present the main characteristics of the PRI policies and participants, to highlight its benefits and to put forward three limitations that prevent MNCs in using PRI in their political risk management strategy (fluctuating capacity on the market, high premium rates and small compensation value. The recent trend in incorporating corporate social responsibility requirements as a pre-condition for providing PRI can contribute to lowering PRI premium rates.

  15. OCENITEV REVIZIJSKEGA TVEGANJA

    OpenAIRE

    Sać, Teuta

    2011-01-01

    V računovodskih izkazih se pojavijo posamezne napačne navedbe, ki lahko izvirajo iz naslova prevare ali napake. Revizorja pri revidiranju spremljajo tveganja, da ne bo odkril napačne navedbe in izrazil napačnega mnenja o poštenosti in resničnosti računovodskih izkazov, ki ga imenujemo revizijsko tveganje. Revizijsko tveganje je sestavljeno iz tveganja pri delovanju, tveganja pri kontroliranju in tveganja pri odkrivanju. Na tveganje pri delovanju lahko vplivajo okoliščine znotraj podjetja...

  16. Recovery of Mice Thymus after X-Rays and 15 MeV Electrons. Comparative Study of the Cell Population Using Tritiated Thymidine; Regeneration du Thymus chez la Souris Apres Irradiation par des Rayons X et des Electrons de 15 MeV. Etude Comparee de la Population Cellulaire a l'Aide de Thymidine Tritiee; 0412 043e 0414 ; Restauracion del Timo de los Ratones Despues de Irradiarlo con Rayos X y Electrones de 15 MeV. Estudio Comparativo de la Poblacion Celular Utilizando Timidina Tritiada

    Energy Technology Data Exchange (ETDEWEB)

    Biagini, C.; Paleani Vettori, P. G.; Zito Bignami, R. [Istituto di Radiologia dell' Universita and Comitato Nazionale per l' Energia Nucleare, Rome (Italy)

    1962-02-15

    dostigaetsja putem sravnenija vozdejstvija na mlekopitajushhih rntege- novskih luchej s pikovoj moshhnost'ju v 150 kvr i obluchenija ih jelektronami iz betatrona moshhnost'ju v 15 mev. V nastojashhem doklade privodjatsja rezul'taty avtoradiograficheskogo issledo- vanija povedenija odnorodnyh kletok myshinogo timusa s ispol'zovaniem tritiro- vannogo timidina v kachestve predshestvennika deoksiribonukleinovoj kisloty. Rezul'taty stavjatsja v zavisimost' ot izmenenij v raspredelenii razmernyh kategorij kletochnyh populjacij i ot vesa organa. V rezul'tate obluchenija sootnoshenie mezhdu krupnymi i melkimi kletkami uvelichivaetsja; pogloshhenie tritirovannogo timidina umen'shaetsja v krupnyh i v malyh limfocitah. V ostroj faze vozdejstvija ne nabljudaetsja znachitel'nyh rashozhdenij mezhdu rezul'tatami obluchenija rentgenovskimi luchami i jelektro- nami v smysle razmerov kletok i markirovki krupnyh kletok. Otnositel'noe izmenenie projavljaetsja v mechenii malyh kletochek; v sootvetstvii s dannymi o vese organa zto obstojatel'stvo mozhet nahodit'sja v zavisimosti ot znachenij otnositel'noj bilogicheskoj jeffektivnosti bystryh nejtronov. V processe vosstnovlenija menee differencirovannye kletki projavljajut aktivnoe razmnozhenie, no procentnaja dolja zrelyh limfocitov ostaetsja ne- znachitel'noj. V rezul'tate obluchenija jelektronami moshhnost'ju v 15 mjev razmno- zhenie krupnyh kletok proishodit bolee intensivno v zavisimosti ot krivyh vremeni atrofii timusov. Na osnovanii vyshepri edennyh rezul'tatov vosstano- vitel'naja sposobnost', po-vidimomu, svjazana so stepen'ju porazhenija prostejshih kletok; dlja dannoj dozy zta sposobnost' sohranjaetsja duchshe pri obluchenii rentgenovskimi luchami, chem pri obluchenii jelektronami. (author)

  17. Os{sup 187}-isotope abundances in terrestrial and meteoritic osmium and an attempt to determine Re/Os-ages of iron meteorites; Anomalies dans l'abondance isotopique de l'osmium-187 dans l'osmium terrestre et meteoritique - Essai de determination de l'age des meteorites de fer au moyen du rapport Re/Os; Anomalii v rasprostranennosti izotopa osmiya-187 v zemnom i meteoritnom osmie i popytka opredeleniya vozrastov reniya/osmiya v zheleznykh meteoritakh; Anomalias en la abundancia isotopica del {sup 187}Os en el osmio terrestre y meteoritico. Ensayo para determinar la edad de los meteoritos de hierro por medio de la razon Re Os

    Energy Technology Data Exchange (ETDEWEB)

    Herr, W; Hoffmeister, W; Langhoff, J [Max-Planck-Institut fuer Chemie (Otto-Hahn-Institut) Mainz, Federal Republic of Germany (Germany); Geiss, J; Hirt, B; Houtermans, F G [Physikalisches Institut der Universitaet Bern (Switzerland)

    1962-01-15

    semblent etre de l'ordre de 3,7 a 5,6 {center_dot} 10{sup 9} ans. (author) [Spanish] Los autores han investigado por espectrometria de masas la composicion isotopica de gran numero de muestras de osmio procedentes de minerales terrestres de platino y de meteorites de hierro. Las razones isotopicas {sup 187}Os : {sup 186}Os observadas en los minerales de Os/Ir y en las muestras de Os, extraidas cuantitativamente de meteoritos de hierro, varian entre 0,88 y 1,41. Estas variaciones pueden explicarse por la formacion de Os radiogenico a consecuencia de la desintegracion del {sup 187}Re, que es el emisor natural {beta} que posee la energia {beta} mas baja conocida. Los analisis por activacion neutronica demuestran que en los meteoritos de hierro se suelen encontrar vestigios do Re y Os. Como la determinacion de la edad de estos cuerpos con ayuda de los metodos clasicos tropieza con enormes dificultades, los autores han estudiado la posibilidad de aplicar un metodo basado en la evaluacion de la razon Re/Os. Despues de haber deducido experimentalmente una razon basica {sup 187}Os : {sup 186}Os, los autores examinan la cuestion de las edades minimas. Estas varian sensiblemente y estan al parecer comprendidas entre 3,7 y 5,6 x 10{sup 9} anos. (author) [Russian] Pri pomoshchi massovoj spektrometrii byl izuchen izotopnyj sostav bol'shogo chisla prob osmiya zemnykh platinovykh rud i zheleznykh meteoritov. Poluchennoe sootnoshenie mezhdu izotopami osmiya-187 i osmiya-186 v rudakh osmiya i zheleza i v probakh osmiya, kolichestvenno, izvlechennykh iz zheleznykh meteoritov, izmenyaetsya v predelakh ot 0,88 do 1,41. EHti izmeneniya mogut byt' ob{sup y}asneny obrazovaniem radiogennogo osmiya vsled za raspadom reniya-187, yavlya- yushchegosya prirodnym beta-izluchatelem s naibolee nizkoj izvestnoj beta-ehnergiej. Aktiva- tsionnyj analiz pri pomoshchi nejtronov dokazyvaet, chto renij i osmij yavlyayutsya obshchimi ehlementami zheleznykh meteoritov, soderzhashchimisya v nikh v nichtozhnykh

  18. Control Rods in high-Flux Swimming-Pool Reactors; Les Barres de Controle dans les Piles Piscines a Haut Flux; Reguliruyushchie sterzhni dlya reaktorov bassejnovogo tipa s vysokoj plotnost'yu nejtronnogo potoka; Las Barras de Control en los Reactores Tipo Piscina de Flujo Elevado

    Energy Technology Data Exchange (ETDEWEB)

    Ageroni, P.; Blum, P.; Denielou, G.; Denis, P.; Meunier, C. [Centre d' Etudes Nucleaires de Grenoble (France)

    1964-06-15

    etudes en cours sur les barres de controle des piles piscine a coeur ouvert fonctionnant dans la bande de 10 a 30 MW. (author) [Spanish] La memoria examina los problemas planteados por las barras de control en los reactores de investigacion de tipo piscina abierta, de alta potencia especifica y elevado flujo, basandose en calculos y experimentos efectuados durante la construccion del reactor SILOE. Expone asimismo la experiencia adquirida con las barras de control mientras el reactor funcionaba a 13 MW. Examina sucesivamente: a) Los balances de reactividad y los valores de esta para los diversos tipos de barras de control que se han ensayado (cadmio, B4C, tierras raras, y combinaciones de estas sustancias); b) los picos de flujo que la presencia de barras de control crea en el cuerpo del reactor, su influencia sobre la potencia especifica, los flujos rapidos que se pueden obtener y los medios para incrementarlos; c) los problemas tecnologicos planteados por la construccion de las barras; d) los problemas de refrigeracion, vibracion, deformacion y tiempo necesario para introducirlos en el reactor. Para terminar, describe someramente loe estudios que se estan realizando con las barras de control de reactores de tipo piscina de cuerpo abierto cuando funcionan en el intervalo de potencias comprendido entre 10 y 30 MW. (author) [Russian] 1. V svete raschetov i jeksperimentov, provedennyh pri postrojke reaktora STLOE , rassmatrivajutsja problemy, voznikajushhie v svjazi s regulirujushhimi sterzhnjami dlja issledovatel'skih reaktorov otkrytogo bassejnovogo tipa s bol'shoj udel'noj moshhnost'ju i s vysokoj plotnost'ju nejtronnogo potoka. Privodjatsja takzhe rezul'taty ispytanija jetogo reaktora pri .moshhnosti 13 mgvt v svjazi s razlichnymi regulirujushhimi sterzhnjami. 2. Posledov atel'no rassmatrivajutsja sledujushhie problemy: a) balans reaktivnosti i reaktivnaja sposobnost' podvergnutyh ispytanijam regulirujushhih sterzhnej razlichnyh tipov (kadmij, B{sub 4}C , redkie zemli

  19. Comparison of Knolls Atomic Power Laboratory Clean Critical and Subcritical Experiments with Calculations; Etude Comparative des Calculs et des Experiences Critiques Non Empoisonnees et Souscritiques, Faits au Knolls Atomic Power Laboratory; Sravnenie chistykh kriticheskikh i podkriticheskikh opytov v nolle s raschetnymi dannymi; Comparacion de los Resultados Experimentales del Knolls Atomic Power Lamra Tory con los Valores Calculados Teoricamente en Conjuntos Criticos Limpios y Subcriticos

    Energy Technology Data Exchange (ETDEWEB)

    Bach, D. R.; Bistline, J. A.; Bunch, S. I.; Cerbone, R. J.; Feiner, F.; Skolnik, W.; Slovacek, R. E.; Weinstein, S. [Knolls Atomic Tower Laboratory, Schenectady, NY (United States)

    1964-02-15

    - dajushhimi harakteristikami. Mehanicheskie kachestva kriticheskoj sborki takovy, chto kriti- cheskie konfiguracii predstavljajut soboj prostye prjamougol'nye parallelepipedy bez ka- nalov dlja avarijnyh i regulirujushhih sterzhnej. Issledovalsja kriticheskij razmer v sistemah v uslovijah utechki bystyh nejtronov (bez otrazhatelja i {sup s} otrazhatelem) i sravnenija so standartnymi dvuh- i trehrazmernymi gruppo- vymi schetno-reshajushhimi programmami. V celom raschetnye postojannye kritichnosti, vychislen- nye na osnovanii samyh poslednih jadernyh dannyh, priblizitel'no na 3% vyshe. Opisyvaemye opyty s plastinkami ohvatyvali shkalu temperatur, nachinaja ot komnatnoj do 293 Degree-Sign S pri davlenii 84,4 kg/sm{sup 2}. V celjah ustranenija oslozhnenija, svjazannogo s dejstviem regulirujushhih sterzhnej, opredelenie temperatury, pri kotoroj aktivnaja zona dostigala kri- tichnosti, provodilos' pri pochti polnom izvlechenii regulirujushhih sterzhnej. Pri nalichii tekushhej informacii otnositel'no poprechnyh sechenij raschetnaja kritichnost' postojanno vyshe priblizitel'no na 2% na vsem diapazone jeksperimentov. Raschety postojannyh raspada, provedennye metodom ustranenija otravlenija po zakonu l /v s ispol'zovaniem standartnoj gruppovoj diffuzii s uchetom uslovij zavisimosti grupp ot .granicy ukazyvajut na sovpadenie v predelah neskol'kih procentov s izmerennymi postojan- nymi raspada v diapazone ot 100 do 45 000 sek{sup -1}. Sravnenie dannyh izmerenij spektra selektora medlennyh nejtronov s raschetnymi spektrami s pomoshh'ju nedavno poluchennyh funkcij vlijanija svjazannogo vodoroda kak dlja vody, tak i dlja polijetilena svidetel'stvujut o horoshem soglasii, za iskljucheniem vodnyh sistem s vysokimi poglotitel'nymi svojstvami. V poslednem sluchae izmerennye spektry, po- vidimomu, dazhe mjagche, chem raschetnye spektry svobodnyh atomov. (author)

  20. Radiation-pulse transmission via a long cable without a preamplifier and/or a pulse transformer; Transmission d'impulsions de rayonnement par cable long sans l'adjonction d'un preamplificateur ou d'un transformateur d'impulsions; Peredacha impul'snykh izluchenij no kabelyu na dal'nie rasstoyaniya bez predvaritel'nogo usileniya i/ili bez preobrazovaniya impul'sov; Transmision de impulsos por cables de gran longitud sin preamplificador y/o transformador de impulsos

    Energy Technology Data Exchange (ETDEWEB)

    Miwa, H; Tohyama, T [Kobe Kogyo Corporation, Okubo, Akashi, Hyogo (Japan)

    1962-04-15

    kompleksnoe soprotivlenie usilitelya No. 2 budet sootvetstvovat' kharakteristike kabelya pri pomoshchi vklyuchennogo kompleksnogo i menyayushchegosya soprotivleniya. Takim obrazom, ustrojstvo vida No. 2 bylo v shirokoj mere prisposobleno k nashemu yadernomu pribornomu oborudovaniyu, kak naprimer k nejtronnomu izmeritelyu vlazhnosti pochvy (schetchik BF{sub 3}) analizatoru sostava pochvy (stsintillyatsionnyj spektrometr), tolshchinomeru snega (schetchik Gejgera-Myullera) i distantsionnym kontrol'nym dozimetricheskim priboram. Otsutstvie predvaritel'nykh usilitelej i preobrazovatelej impul'sov delaet vozmozhnym primenenie ehtikh detektorov na mestnosti v osobykh usloviyakh, kak naprimer, pri vysokikh ili nizkikh temperaturakh, bystrom potoke nejtronov (gamma-izluchenij) i t.d. Nalichie tol'ko odnogo koaksial'nogo kabelya uproshchaet rabotu detektorov na dal'nem rasstoyanii. Peredacha impul'sov po kabelyu na dal'nie rasstoyaniya svyshe 500 metrov ne povliyala na stsintillyatsionnuyu spektroskopiyu gamma-izluchenij. (author)

  1. Analyser for fast single events; Analyseur d'evenements rapides simples; Analizator bystrykh odnokratnykh yavlenij; Analizador de sucesos rapidos no recurrentes

    Energy Technology Data Exchange (ETDEWEB)

    Sedlmeyer, J W; Patten, R B; Fussell, L Jr [Edgerton, Germeshausen And Grier, Inc., Las Vegas, NV (United States)

    1962-04-15

    otrezki dostigaetsya pri pomoshchi vremennogo selektornogo impul'sa i intervala vremeni mezhdu otborom obraztsov, prichem i tot i drugoj mogut regulirovat'sya nezavisimo drug ot druga, nachinaya priblizitel'no s 4 nanosekund. Intervaly vremeni mogut zadavat'sya v nelinejnom poryadke, a razbros mezhdu nimi ne prevyshaet 0,5 nanosekund. Do nastoyashchego vremeni skorost' otvetnoj reaktsii ogranichivaetsya kharakteristikami dioda. Kazhdoe otobrannoe napryazhenie rasshiryaetsya v konture, kotoryj sokhranyaet amplitudu ehtogo napryazheniya. Udalos' osushchestvit' rasshirenie po vremeni v 10{sup 8} raz s sokhraneniem khoroshej ustojchivosti. Tochki pokazanij mogut soobshchat'sya i peredavat'sya po otkrytomu provodu v nizkochastotnoe registriruyushchee ustrojstvo, oni mogut byt' prevrashcheny v tsifrovye dannye dlya bystroj ikh obrabotki s pomoshch'yu obychnogo oborudovaniya; krome togo, ili vmesto ehtogo, oni mogut byt' dany vizual'no. Analizator imeet preimushchestva po sravneniyu s vysokoskorostnoj ostsiloskopiej, kogda trebuetsya provodit' individual'nyj analiz bol'shogo chisla odnokratnykh perekhodyashchikh signalov; ehto trebuetsya pri izuchenii kolebanij otvetnykh reaktsij sistem ili pri proizvodstvennykh ispytaniyakh komponentov. Analizator imeet preimushchestva, kogda analiz dannykh dolzhen proizvodit'sya neposredstvenno za poyavleniem signala; otpadaet neobkhodimost' proyavlyat' plenki ili prochityvat' ikh. Analizator udoben takzhe v tekh sluchayakh, kogda schetno-analiziruyushchij tsentr raspolozhen daleko ot mesta poyavleniya signala. EHtot metod shiroko primenyaetsya v oblasti yadernoj ehnergii. Metod pul'siruyushchikh nejtronov mozhet byt' primenen dlya bystrogo izucheniya kolebanij rezhima reaktorov i podkriticheskikh sborok. Mogut byt' opredeleny parametry nakopleniya i raspada detektorov i odnovremenno provodit'sya analiz statisticheskikh dannykh i kolebanij. Mozhet izmeryat'sya forma impul'sov radiatsionnykh voln, proizvodimykh yadernymi uskoritelyami. S

  2. Improved plant nitrogen nutrition contributes to higher water use efficiency in tomatoes under alternate partial root-zone irrigation

    DEFF Research Database (Denmark)

    Wang, Yaosheng; Liu, Fulai; Andersen, Mathias Neumann

    2010-01-01

    stomatal conductance during the treatment. At the end of the experiment, N accumulation and 15N recovery was highest in FI, intermediate in PRI and lowest in DI. In addition, PRI plants consistently allocated more N into the upper and middle leaf layers than in the FI and DI treatments. The improved N...... nutrition and distribution in the canopy may indicate that PRI plants have a greater photosynthetic capacity than DI plants; this is confirmed by the observed positive linear relationship between specific leaf N content and δ13C. It is concluded that PRI improves N nutrition and optimises N distribution...

  3. Expression of genes for microRNA-processing enzymes is altered in advanced non-alcoholic fatty liver disease.

    Science.gov (United States)

    Sharma, Haveesh; Estep, Michael; Birerdinc, Aybike; Afendy, Arian; Moazzez, Amir; Elariny, Hazem; Goodman, Zachary; Chandhoke, Vikas; Baranova, Ancha; Younossi, Zobair M

    2013-08-01

    Recently, microRNAs (miRNA) have been linked to the pathogenesis of non-alcoholic fatty liver disease (NAFLD) and its progression to non-alcoholic steatohepatitis (NASH). First transcribed as pri-miRNA, these molecules are further processed by a complex of endonuclear and cytosolic RNA binding molecules to form mature miRNAs. The aim of this study is to investigate mechanisms of miRNA regulation in the visceral adipose of obese NAFLD patients via measuring expression of miRNA processing enzymes and pri-miRNA. Total RNAs were extracted from visceral adipose tissue (VAT) samples collected from patients undergoing bariatric surgery. All patients had biopsy-proven NAFLD (NASH patients [n = 12] and non-NASH NAFLD [n = 12]). For each patient, we profiled mRNA levels for three miRNA processing elements (Drosha, DGCR8, and Dicer1) and seven pri-miRNAs (pri-miR-125b-2, pri-miR-16-2, pri-miR-26a-1, pri-miR-26a-2, pri-miR-7-1, pri-miR-7-2, and pri-miR-7-3). Expression of Dicer1, Drosha and DGCR8 was significantly increased within the NASH cohort along with expression of pri-miR-7-1. The presence of focal necrosis on the liver biopsy correlated significantly with levels of Dicer1 and DGRC8. Both NASH and ballooning degeneration of hepatocytes correlated negatively with the expression levels of hsa-miR-125b. Histologic NASH correlated positively with the expression levels of pri-miR-16-2 and pri-miR-7-1. The presence of the hepatocyte's ballooning degeneration in the liver biopsy correlated positively with pri-miR-26a-1 and pri-miR-7-1. The expression profile of pri-miR-125b-2 also correlated positively with body mass index. Our findings support the hypothesis that VAT-derived miRNA may contribute to the pathogenesis of NASH in obese patients. © 2013 Journal of Gastroenterology and Hepatology Foundation and Wiley Publishing Asia Pty Ltd.

  4. Program Energy of the CNRS. Topic 10 combustion and capture of CO{sub 2}. PRI 10.1. Capture by adsorption of the CO{sub 2} in thermal power plants gas and their injection in petroleum wells. Final report period 2002-2004; Programme energie du CNRS. Theme 10 combustion et capture du CO2. PRI 10.1. Capture par adsorption du CO2 dans des gaz de centrales thermiques et leur injection en puits de petrole. Rapport final periode 2002-2004

    Energy Technology Data Exchange (ETDEWEB)

    Tondeur, D

    2005-07-01

    In the framework of the global warming resulting of the greenhouse gases emission increase, the carbon dioxide capture and storage in deep underground cavities of old petroleum and gas deposits, are studied. This report presents the researches realized by the CNRS (France) in the domain: technology and knowledge assessment concerning the carbon dioxide capture and storage, active coals for the CO{sub 2} capture, methodology of thermo-economical optimization of the combined cycle, global simulation of an IGCC (Integrated gasification combined cycle) with CO{sub 2} capture and integration in the process scheme, petroleum recovery-aided by CO{sub 2} injection, storage in geological deposits. (A.L.B.)

  5. Integral physics data for fast-reactor design; Donnees de physique integrale intervenant dans les etudes de reacteur a neutrons rapides; Integral'nye fizicheskie dannye dlya raschetov reaktorov na bystrykh nejtronakh; Datos fisicos integrales para el diseno de reactores rapidos

    Energy Technology Data Exchange (ETDEWEB)

    Loewenstein, W B; Meneghetti, D [Argonne National Laboratory, Argonne, IL (United States)

    1962-03-15

    dannye po fakticheskim ehnergeticheskim reaktoram-razmnozhitelya m na bystrykh nejtronakh. EHti sistemy slishkom slozhny dlya prove- deniya prostogo teoreticheskogo analiza. Oni svidetel'stvuyut o slozhnosti fakticheskogo reaktora po sravneniyu s bolee idealizirovanny m i legko analiziruemym kriticheskim opytom. Integral'nye fizicheskie dannye dlya rascheta reaktora polucheny v rezul'tate provedennykh na reaktornykh sistemakh kriticheskikh ili nekriticheskikh izmerenij, razlichnykh velichin reaktornoj fiziki, imeyushchikh prakticheskoe j teoreticheskoe znacheniya, ili to ili drugoe znachenie. Oni kharakterizuyut i pozvolyayut ponyat' sistemu. Dany izmereniya kriticheskoj massy, koehffitsienta formy aktivnoj zony, koehffitsientov detektorov, spektrov nejtronov, opytov s zamenoj materiala, otrazhatel'noj dobavki, vremeni zhizni nejtronov, Rossi-{alpha} i podobnykh kharakteristik i velichin. V doklade rassmatrivayuts ya ehti dannye i opisyvayutsya oblasti ikh primeneniya. Pokazano, chto sushchestvuyut ogranicheniya i v ehksperimental'ny kh i v analiticheskikh rezultatakh pri analizakh spektra i kritichnosti sistemy. Dany nametki budushchikh ehksperimental'ny kh i analiticheskikh issledovanij. Ehti issledovaniya pomogut umen'shit' razryv mezhdu teoriej i opytom dlya 'izvestnykh' sistem. Namechayutsya takzhe issledovaniya po 'podkrepleniyu' dannykh fiziki krupnykh ehnergeticheskikh reaktorov-razmnozhitelej na bystrykh nejtronakh. (author)

  6. Investigation of the Dynamics Of NH{sup +}{sub 4} and H{sub 2}O Molecular Groups in Crystals; Etude de la Dynamique des Groupes Moleculaires NH{sup +}{sub 4} et H{sub 2}O dans les Cristaux; 0418 0421 0421 041b 0415 0414 041e 0412 0410 041d 0418 0415 0414 0418 041d 0410 041c 0418 041a 0418 041c 041e 041b 0415 041a 0423 041b 042f 0420 041d 042b 0425 0413 0420 0423 041f 041f NH{sup +}{sub 4} H H{sub 2}O 0412 041a 0420 0418 0421 0422 0410 041b 041b 0410 0425 ; Estudio de la Dinamica de los Grupos Moleculares NH{sup +}{sub 4} Y H{sub 2}O en Cristales

    Energy Technology Data Exchange (ETDEWEB)

    Bajorek, A.; Machehina, T. A.; Parlin' Ski, K. [Ob' edinennyj Institut Jadernyh Issledovanij, Dubna, SSSR (Russian Federation)

    1965-06-15

    fazovymi perehodami. Nesmotrja na razlichie struktur issleduemyh veshhestv, poluchaemye spektry pri temperature zhidkogo azota okazyvajutsja pohozhimi drug na druga: kak pravilo, nabljudajutsja dva pika - pervyj v oblasti peredach jenergii 15 - 20 mjev, drugoj v oblasti 35 - 70 mjev, svjazannyj s torsionnymi kolebanijami ammonievyh ionov. Intensivnost' pikov zavisit ot struktury issleduemyh veshhestv i umen'shaetsja s uvelicheniem temperatury obrazca. Obnaruzheno, chto intensivnost' uprugoj chasti spektra pri nekotoryh fazovyh perehodah sovershaet skachok (v sluchajah NH{sub 4}I, NH{sub 4}NO{sub 3} i (NH{sub 4}){sub 2}SO{sub 4}). S uvelicheniem temperatury v NH{sub 4}Cl, NH{sub 4}Br, (NH{sub 4}){sub 2}(COO){sub 2} voznikaet dopolnitel'nyj pik, sdvinutyj v storonu men'shih jenergij ot pika zatormozhennogo vrashhenija. Spektry nejtronov, rassejannyh na kristallah, soderzhashhih kristallizacionnuju vodu, takzhe shozhi mezhdu soboj. V spektrah nabljudajutsja tri gruppy pikov, svjazannyh s opticheskimi kolebanijami i zatormozhennym vrashheniem molekul vody. (author)

  7. GenBank blastx search result: AK059429 [KOME

    Lifescience Database Archive (English)

    Full Text Available AK059429 001-027-F01 S81752.1 DPH2L=candidate tumor suppressor gene {ovarian cancer critical region of delet...ion} [human, 9 week fetal and placental tissues, mRNA, 2233 nt].|PRI PRI 2e-64 +2 ...

  8. osamosvojitvi slovenije leta 1991

    Directory of Open Access Journals (Sweden)

    Elke Tharun

    2003-12-01

    Full Text Available Nemške občine se razlikujejo med seboj po svoji upravi v smislu samouprave, ki je za-gotovljena z ustavo. Neposredna posledica je vedno več omejitev pri prenosu odgovor-nosti, na področju financ in pri evropskem upravljanju.

  9. Development of microstructure of steel for thermal power generation: Razvoj mikrostrukture jekel za termično generacijo energije:

    OpenAIRE

    Bevilaqua, T.; Fujda, M.; Kuskulic, T.; Kvackaj, Tibor; Pokorny, I.; Weiss, M.

    2007-01-01

    The evolution of microstructure during the reheating and cooling of steel for thermal power generation was investigated. On the basis of the microstructure produced during cooling a CCT diagram is proposed Raziskan je bil razvoj mikrostrukture pri segrevanju in ohlajanju jekel za toplotno generacijo energije. Na podlagi mikrostrukture, ki je nastala pri ohlajanju, je bil predložen CCT-diagram.

  10. SPARK-UP; Seaweed Production And Refining of Kelp, Ulva and Palmaria

    NARCIS (Netherlands)

    Wald, J.; Visser, de W.; Brandenburg, W.A.; Jongschaap, R.E.E.; Werf, van der A.K.; Deelman, Berth-Jan; Helmendach-Nieuwenhuize, Carola

    2016-01-01

    In het SPARK-UP project, waarin de partners Arkema, PRI-WUR en North Seaweed samenwerkten aan de ontwikkeling van toepassing van zeewier in de biobased economy, is de afgelopen jaren veel werk verzet. In een bassin op het terrein van Arkema, heeft PRI een teeltsysteem opgezet en in gebruik genomen,

  11. The RNA-binding protein HOS5 and serine/arginine-rich proteins RS40 and RS41 participate in miRNA biogenesis in Arabidopsis

    KAUST Repository

    Chen, Tao; Cui, Peng; Xiong, Liming

    2015-01-01

    MicroRNAs are a class of small regulatory RNAs that are generated from primary miRNA (pri-miRNA) transcripts with a stem-loop structure. Accuracy of the processing of pri-miRNA into mature miRNA in plants can be enhanced by SERRATE (SE

  12. GenBank blastx search result: AK105069 [KOME

    Lifescience Database Archive (English)

    Full Text Available AK105069 001-045-C01 AB169286.1 Macaca fascicularis testis cDNA, clone: QtsA-18648, similar to human mortali...ty factor 4 like 2 (MORF4L2), mRNA, RefSeq: NM_012286.1.|PRI PRI 3e-20 +3 ...

  13. GenBank blastx search result: AK062242 [KOME

    Lifescience Database Archive (English)

    Full Text Available E1, alpha polypeptide (maple syrup urine disease), mRNA (cDNA clone MGC:14115 IMAGE:3938510), complete cds.|PRI PRI 3e-31 +1 ... ...AK062242 001-047-E10 BC007878.2 Homo sapiens branched chain keto acid dehydrogenase

  14. GenBank blastx search result: AK110760 [KOME

    Lifescience Database Archive (English)

    Full Text Available E1, alpha polypeptide (maple syrup urine disease), mRNA (cDNA clone MGC:14115 IMAGE:3938510), complete cds.|PRI PRI 1e-100 +1 ... ...AK110760 002-170-H05 BC007878.2 Homo sapiens branched chain keto acid dehydrogenase

  15. GenBank blastx search result: AK060732 [KOME

    Lifescience Database Archive (English)

    Full Text Available E1, alpha polypeptide (maple syrup urine disease), mRNA (cDNA clone MGC:22893 IMAGE:4065221), complete cds.|PRI PRI 1e-113 +3 ... ...AK060732 001-032-A05 BC023983.1 Homo sapiens branched chain keto acid dehydrogenase

  16. GenBank blastx search result: AK062242 [KOME

    Lifescience Database Archive (English)

    Full Text Available E1, alpha polypeptide (maple syrup urine disease), mRNA (cDNA clone MGC:22893 IMAGE:4065221), complete cds.|PRI PRI 3e-31 +1 ... ...AK062242 001-047-E10 BC023983.1 Homo sapiens branched chain keto acid dehydrogenase

  17. GenBank blastx search result: AK104686 [KOME

    Lifescience Database Archive (English)

    Full Text Available AK104686 001-036-C11 BC034481.1 Homo sapiens branched chain keto acid dehydrogenase... E1, beta polypeptide (maple syrup urine disease), mRNA (cDNA clone MGC:26350 IMAGE:4824846), complete cds.|PRI PRI 3e-20 +1 ...

  18. GenBank blastx search result: AK060732 [KOME

    Lifescience Database Archive (English)

    Full Text Available E1, alpha polypeptide (maple syrup urine disease), mRNA (cDNA clone MGC:14115 IMAGE:3938510), complete cds.|PRI PRI