Pictures of Industry and Industrial Work in Danish Art from the 1780ies till Today

DEFF Research Database (Denmark)

Abildgaard, Hanne

2013-01-01

Artiklen diskuterer, hvilke spor industrisamfundet har sat sig i dansk kunst gennem mere end 200 år. Den fokuserer på kunstnere, der bevidst har forholdt sig til industrisamfundets fænomener, og polemiserer i forlængelse heraf mod den opfattelse, at industrien er næsten totalt fraværende i dansk ...

The Macuti House in Ilha de Mocambique

DEFF Research Database (Denmark)

Sollien, Silje Erøy

2014-01-01

I afhandlingen træder en aktuel afrikansk problemstilling helt skarpt frem. Ilha de Mozambique er erklæret verdenskulturarv af UNESCO bl.a. fordi øen har været et vigtigt handelscentrum med spor fra arabiske, indiske, europæiske og afrikanske tilrejsende og bosættere. Men hvad betyder det for mul...

Forestil dig verden

DEFF Research Database (Denmark)

Sortkær, Allan

2010-01-01

. Flere spor styrer fremstillingen. Dels en historisk funderet fænomenologi i form af begreber som det forunderlige og det punktuelle rum. Det første betegner, hvad de rejsende finder mest interessant på deres rejser, det andet en bestemt måde at gestalte rummet på. Begge dele udvikler sig markant i løbet...

Bazı Fungisitlerin Elmada Alternaria mali Roberts (Nekrotik Yaprak Lekesi Üzerine Etkinliğinin Belirlenmesi

Directory of Open Access Journals (Sweden)

Yasin KAŞ

2016-12-01

Full Text Available Bu çalışmada, farklı fungisitlerin Alternaria mali’nin 6 izolatı üzerine in vitro’da misel gelişimi, spor çimlenmesi, çimlenen sporların hifsel gelişimi ve in vivo’da elma fidanlarında hastalık şiddeti (% üzerine etkileri araştırılmıştır. Fungisitlerin farklı dozlarının (0-500 ppm artan konsatrasyonları A. mali’nin misel gelişmesi, spor çimlenmesi ve çimlenen sporların hif uzunluklarını değişen oranlarda azaltmış veya tamamen engellemiştir. Fungisitlerden, Maneb 250 ppm dozunda patojenin M-2K, AK1-K, G1-B ve GK-30 izolatlarını ve Iprodione, izolatların tümünün misel gelişmesini tamamen engellemiştir. Bakır hidroksit 350 ppm dozunda A1-B, M2-K ve AK1-K izolatlarının misel gelişmesini tamamen durdurmuştur. Difenoconazole, izolatlar arasında değişkenlik göstermekle birlikte, 450-500 ppm’de misel gelişmesini tamamen engellemiştir. Chlorothalonil ve Thiophanate-Methyl doz artışı ile birlikte misel gelişmesini azaltmıştır. Fungisitler A. mali’nin spor çimlenmesi üzerine 0-100 ppm arasında değişen oranlarda etki göstermiştir. Maneb, çimlenen sporların hif uzunluklarını izolatlara göre 50-100 ppm dozlarında tamamen engellemiştir. Fidanlarda hastalık şiddetini Bakır hidroksit % 61.6-% 87.2 ve Iprodione % 59.3-%70.9 oranlarında azaltmıştır.

Assessment of the Risk to Public Health due to Use of Antimicrobials in Pigs?An Example of Pleuromutilins in Denmark

OpenAIRE

Alban, Lis; Ellis-Iversen, Johanne; Andreasen, Margit; Dahl, Jan; S?nksen, Ute W.

2017-01-01

Antibiotic consumption in pigs can be optimized by developing treatment guidelines, which encourage veterinarians to use effective drugs with low probability of developing resistance of importance for human health. In Denmark, treatment guidelines for use in swine production are currently under review at the Danish Veterinary and Food Administration. Use of pleuromutilins in swine has previously been associated with a very low risk for human health. However, recent international data and spor...

The effects of a combined resisted jump training and rugby-conditioning program on selected physical, motor ability and anthropometric components of rugby players / Jacobus Johannes Oosthuizen

OpenAIRE

Oosthuizen, Jacobus Johannes

2013-01-01

Plyometrics is primarily used by coaches and sport scientists to improve explosive power among athletes who participate in dynamic, high intensity type of sports. One of the plyometric-related training methods that has received attention in recent years, is loaded or resistance (resistive) jump training. Limited research does, however, exist with regard to the benefits and use of this training method as well as in conjunction with other training methods, especially among team spor...

2016 Consensus statement on return to sport from the First World Congress in Sports Physical Therapy, Bern

OpenAIRE

Ardern, Clare L.; Glasgow, Philip; Schneiders, Anthony; Witvrouw, Erik; Clarsen, Benjamin; Cools, Ann; Gojanovic, Boris; Griffin, Steffan; Khan, Karim M.; Moksnes, Havard; Mutch, Stephen A.; Phillips, Nicola; Reurink, Gustaaf; Sadler, Robin; Silbernagel, Karin Gravare

2016-01-01

Copyright © 2017 BMJ Publishing Group Deciding when to return to sport after injury is complex and multifactorial—an exercise in risk management. Return to sport decisions are made every day by clinicians, athletes and coaches, ideally in a collaborative way. The purpose of this consensus statement was to present and synthesise current evidence to make recommendations for return to sport decision-making, clinical practice and future research directions related to returning athletes to spor...

strong>Forureningens spor udviskes i Furesøen.strong>

DEFF Research Database (Denmark)

Jensen, Kaj Sand; Thorsgaard, Inge; Pedersen, Niels Lagergaard

2007-01-01

Furesøs udvikling er historien om et søklenodie, rigt på planter og dyr, som blev voldsomt forurenet med spildevand mellem 1900 og 1970, og som undervejs mistede mange af sine arter. Nu er tilførslerne af fosfor og kvælstof reduceret, vandet er blevet klarere, og planterne har igen bredt sig. Men...

Polumilliardnõi spor budut reshat v Londone / Artur Tooman

Index Scriptorium Estoniae

Tooman, Artur, 1971-

2006-01-01

Soome peatöövõtja Foster Wheeler Energia OY nõuab rahvusvahelise arbitraazhi kaudu Eesti Energialt 38 miljonit eurot, tegemist on Narva Elektrijaamade energiablokkide renoveerimise lepingu ja selle täitmisel tekkinud vaidlusega

Analyse av en konfliktfylt planprosess. Medvirkning og makt – i spenningsforholdet mellom ulike stedsidentiteter

OpenAIRE

Ihle, Hilde Nygaard

2016-01-01

Oppgaven beskriver reguleringsplanprosessen i 2015, og leter etter spor av Sætres stedsidentitet i historiske planer og debatt. Jeg ser etter identitetsuttrykk forstått som stedsfølelse (sence of place), den sosiale konteksten der stedet skapes og gjenskapes gjennom sosiale praksiser (locale) og den fysiske beskrivelsen av stedet (location). I oppgaven ser jeg på hvordan innbyggerne påvirket prosessen gjennom dialog på to Facebook-sider, avisinnlegg og høringsinnspill. Jeg analyserer akti...

Availability and affordability of blood pressure-lowering medicines and the effect on blood pressure control in high-income, middle-income, and low-income countries: an analysis of the PURE study data

Directory of Open Access Journals (Sweden)

Marjan W Attaei, MA

2017-09-01

Funding: Population Health Research Institute, the Canadian Institutes of Health Research, Heart and Stroke Foundation of Ontario, Canadian Institutes of Health Research Strategy for Patient Oriented Research through the Ontario SPOR Support Unit, the Ontario Ministry of Health and Long-Term Care, pharmaceutical companies (with major contributions from AstraZeneca [Canada], Sanofi Aventis [France and Canada], Boehringer Ingelheim [Germany amd Canada], Servier, and GlaxoSmithKline, Novartis and King Pharma, and national or local organisations in participating countries.

Kartlegging av PCB i sedimenter fra Indre Sørfjord

OpenAIRE

Skei, J.; Klungsøyr, J.

1990-01-01

Som følge av forhøyede nivåer av PCB i fiskelever innerst i Sørfjorden er det gjennomført en sedimentundersøkelse for om mulig å finne kilden til PCB. Det ble ikke registrert høye nivåer av PCB i sedimentene. Høyeste konsentrasjoner ble målt i munningen av Eitrheimsvågen. Analyser av trafooljer brukt i Tyssedalsområdet viste spor av PCB. Statens forurensningstilsyn (SFT)

Domates Salçalarının Mikroflorası ve Depolama Sürecinde Miktarlarındaki Değişiklikler

Directory of Open Access Journals (Sweden)

Fikri Başoğlu

2015-02-01

Full Text Available - Ticari sterilize edilen domates salçasının muhafazası esnasında sterilliği azalmaktadır. 12 aylık muhafaza süresinde sterillik %100’den %15 ve 8’e hatta daha aza düşebilir. - Pastörizasyonda tatbik edilen sıcaklık derecesi (89-93 oC laktik asit bakterileri ile maya ve küflerin yaşamasına imkan vermemektedir. - Domates salçasının kalıntı mikroflorasını umumiyetle spor yapan bakteriler (B. subtilis, B. mesentericus, B. cereus ..... temsil etmektedir. - Domates salçasının kuru maddesi %28-30 veya %38-40 olması B. subtilis ve B. mesentericus’un ölmesine tesir etmemektedir. - Salçanın 10-15 oC ta muhafaza edilmesi termofil mikroorganizmaların çoğalmasına engel olmaktadır. - Salçanın pH’sı yükseltilirse sporlar çabuk gelişmektedir. - Hermetikli kapatmadaki hatalarda laktik asit bakterileri ve mayalar salçayı bozmaktadırlar. - Salçada bulunan bazı sporlu ve sporsuz mikroorganizmaların termal ölüm müddetlerine ortamın pH’sı, organik asitler ve spor konsantrasyonu etki etmektedir.

Possible Solutions of Various Transport Problems; O nakhozhdenii reshenij nekotorykh zadach perenosa

Energy Technology Data Exchange (ETDEWEB)

Lebedev, V. I. [Institut Atomnoj Ehnergii Im. I.V. Kurchatova Moskva, SSSR (Russian Federation)

1968-01-15

Let x = (x{sub 1}....,x{sub q}), R{sub q}(x) be the q-dimensional space (q{>=}2), s be the unit vector, and #Greek Capital Letter Omega With Tonos# the surface of the unit sphere. The problem of solving transport equations with a degenerate scattering indicatrix is a multidimensional problem in R{sub q}x#Greek Capital Letter Omega With Tonos#; the nature of these problems calls for rapidly converging iterative methods which do not require all the information on the preceding step. The paper proposes a KP method: the idea consists in solving in R{sub q} simplified problems of error determination using successive iterative steps of decreasing difficulty. Two operations are performed in the KP: the K-operation is a simple iteration in R{sub q}x{Omega} and operation P = {l_brace}P{sub 1}(n{sub 1}),...P{sub 0}(n{sub 0}){r_brace} is for the error with P{sub k} (n{sub k}) representing the solution in R{sub q} of the ultimate problem for a differential equation of order 2n{sub k}. P-operations are found and the convergence of the following methods is studied: KP{sub 1}(n), P{sub 2}(0), K{sup 2}P{sub 1}(n), cyclic KP{sub 1}(1) and KP{sub 1}(0) etc. For 2{pi}T periodic problems the convergence is estimated, P(KP) (KP price) and cheap algorithms are found, and the non-improvability is shown. Numerical calculations indicated that the KP method is very efficient. The Case results are generalized for the q-dimensional case: in Rqx{Omega} a system of solutions is found for a homogeneous single-velocity transport equation with constant coefficients and an isotropic scattering indicatrix {Phi}{sub {omega}}(S)exp({+-}(x, {omega})/v) These are generalized functions with {sub v}#Greek Lunate Epsilon Symbol#{l_brace}(-1, 1], {+-} v{sub 0}{r_brace} and {omega} #Greek Lunate Epsilon Symbol#. Theorems are proved for the completeness of {l_brace}{Phi}{sub v{omega}}{r_brace} in L{sub 2}({Omega}), for the partial orthogonality of and the possibility of representing {psi}#Greek Lunate Epsilon Symbol# L{sub 2}({Omega}) by {l_brace}{Phi}{sub v{omega}}{r_brace}. For q>3 the second component of v can be missing. 2{pi}T periodic solutions of non-homogeneous transport equations are found for cells of different dimensions. (author) [Russian] Pust' x = (x{sub 1}....,x{sub q}), R{sub q}(x) - ja-mernoe prostranstvo (q Greater-Than-Or-Equal-To 2), s - edinichnyj vektor, #Greek Capital Letter Omega With Tonos# - poverhnost' edinich- Zadacha reshenija uravnenij perenosa s vyrozhdennoj indikatrisoj rassejanija javljaetsja mnogomernoj zadachej v R{sub q}x#Greek Capital Letter Omega With Tonos#; specifika takih zadach trebuet razrabotki bystroshodjashhih- sja iteracionnyh metodov, trebujushhih zapominanija ne vsej informacii o provedennom iteracionnom shage. Izlagaetsja KR-metod; ideja ego sostoit v reshenii v Rja na kazhdom iteracionnom shage posledovatel'nosti ubyvajushhej trudnosti uproshhennyh zadach dlja oshibki. V KR vypolnjaetsja dve operacii: operacija K-prostaja iteracija v R{sub q}x Greek-Capital-Letter-Omega , i operacija P = {l_brace}P{sub 1}(n{sub 1}),...P{sub 0}(n{sub 0}){r_brace} dlja oshibki, zdes' P{sub k} (n{sub k}) oznachaet reshenie v R{sub q} kraevoj zadachi dlja differencial'nogo uravnenija 2n{sub k} go porjadka. Najdeny operacii R i issledovana shodimost' metodov: KP{sub 1}(n), P{sub 2}(0), K{sup 2}P{sub 1}(n), cyclic KP{sub 1}(1) ciklicheskogo KP{sub 1}(0) i KPi (0) i dr. Dlja 2{pi}T periodicheskih zadach ocenena shodimost', najdeny C(KR) (cena KR) i deshevye algorifmy, pokazana neuluchshaemost'. Chislennye raschety pokazali vysokuju jeffektivnost' KR-metoda. Obobshheny na ja-mernyj sluchaj rezul'taty Kejsa: v Rqx{Omega} najdena sistema reshenij odnorodnogo odnoskorostnogo uravnenija perenosa s postojannymi kojefficientami i izotropnoj indikatrisoj rassejanija {Phi}{sub {omega}}(S)exp({+-}(x, {omega})/v) javljajushhihsja obobshhennymi funkcijami, u kotoryh {sub v}#Greek Lunate Epsilon Symbol#{l_brace}(-1, 1], {+-} v{sub 0}{r_brace}, i {omega} #Greek Lunate Epsilon Symbol#. Dokazany teoremy o polnote {l_brace}{Phi}{sub v{omega}}{r_brace} B L{sub 2}({Omega}), o chastichnoj ortogonal'nosti {psi}#Greek Lunate Epsilon Symbol# L{sub 2}({Omega}) by {l_brace}{Phi}{sub v{omega}}{r_brace}, o predstavimosti cherez Pri ja>3 vtoraja komponenta mnozhestva v mozhet otsutstvovat'. Najdeny 2{pi}T-periodicheskie reshenija neodnorodnyh uravnenij perenosa, jeto reshenija dlja jacheek,razlichnoj formy. (author)

Vortex Shedding from Finned Circular Cylinders

Science.gov (United States)

1980-11-01

FINNED CIRCULAR CYLINDERSo ,rm"" 1..UTNOI .)R*., r. *.040, 111SPOR- / T NuMBII f.John G. elute asOHans J.’/, ugt -. . . , ,<-. -. ,:. =., .. Siil P3RPIO...fins and other sharp protuberances. These purely two-dimensional flows then may be used in a strip theory to include at least some aspects of three...boundary- layer theory . Such a prediction method, together with a technique to provide for a vortex sheet at the separation point, will be included in

Analýza zvukové, obrazové a obsahové složky ve sportovním zpravodajství (na příkladě sportovních relací Branky, body, vteřiny na České televizi a Sportovní noviny na TV Nova)

OpenAIRE

Prouza, David

2016-01-01

In the beginning of the theoretical part this diploma thesis deals with the history of television broadcasting with emphasis on sport content. It continues with analysis of sport news programs Branky, body, vteřiny and Sportovní noviny and deals with their history and progress. In the theoretical part there are also presented visual and sound elements of TV broadcasting (such as shot composition, axis rule, sound, rush etc.). There is also introduced complete process of making television spor...

Philosophy of sport in the Nordic countries

OpenAIRE

Breivik, Gunnar

2010-01-01

© Human Kinetics n 1972 I attended the Pre-Olympic Scientific Congress in Munich. For the first time science and sport were brought together in connection with the Olympic Games. The organizers presented a book Sport in Blickpunkt der Wissenschaften (Sport from a Scientific Point of View) that summarized history and state of the art of the main sport scientific approaches (41). The German philosopher Hans Lenk gave a presentation of a broad array of past and present interpretations of spor...

De dankse domstoles håndtering af CISG

DEFF Research Database (Denmark)

Lookofsky, Joseph

2012-01-01

Købelovskonventionen (CISG) forpligter de danske domstole til at tage hensyn til traktatens internationale karakter og til behovet for at fremme ensartet anvendelse af den. Artiklen peger på, at danske domspræmisser efterlader indtryk af sjældent at tage hensyn til disse pligter. Problemet - som...... parternes advokater er med til at skabe - understreges af fodnoten til en højesteretsdom, der synes at bekræfte, at de danske CISG-sager endnu ikke kører på det internationale spor....

Effects of Ionizing Radiation on Insects and Other Arthropods; Effet des rayonnements ionisants sur les insectes et autres arthropodes; Vozdejstvie ioniziruntsej radiatsii na nasekomykh i drugikh chlenistonogikh; Efectos de las radiaciones ionizantes sobre los insectos y otros artropodos

Energy Technology Data Exchange (ETDEWEB)

Stone, William E. [United States Department of Agriculture Laboratories, Mexico City, D.F (Mexico)

1963-09-15

radiaciones gamma en la capacidad de reproduccion, los instintos sexuales, el vigor y la longevidad de la mosca oriental de la fruta, Dacus dorsalis Hendel, la mosca del melon, Dacus cucurbitae Coq., la mosca mediterranea, Ceratitis capitata Wied., la mosca de la fruta mejicana, Anastrepha ludens Loew, y el Anopheles quadrimaculatus Say, e indica los resultados de la campada de exterminio obtenidos en la practica liberando machos esteriles. Revisa tambien los progresos realizados en los Estados Unidos en la campana para exterminar la Cochliomya hominivorax Cqrl., y en los estudios para desarrollar cepas vigorosas, marcadas geneticamente, que permitan identificar con facilidad las moscas esteriles liberadas. Se discuten tambien los resultados de las investigaciones sobre la irradiacion de otras seis especies que atacan a frutas, verduras y otros cultivos agricolas y forestales, otras tres que atacan al ganado, y tres mas que atacan principalmente al hombre. Se trata asimismo de la irradiacion del escorpion, Centruroides limp idus Karsch y del aracnido Amblyomma americanum L., y de la posibilidad de emplear radiaciones ionizantes como tratamiento de cuarentena para las frutas y verduras infestadas con la mosca de la fruta y para los mangos infestados con el gorgojo Stemochetus mangiferae Fabricius. (author) [Russian] V nastoyashchee vremya provodyatsya issledovaniya vozmozhnosti primeneniya metoda sterilizatsii posredstvom oblucheniya dlya unichtozheniya populyatsij tselogo ryada nasekomykh, porazhaptsikh cheloveka, zhivotnykh i razlichnye kul'tury. Ehti predvaritel'nye issledovaniya pokazali, chto ioniziruyushchee obluchenie privodit k sterilizatsii, no chto dlya ehtoj tseli trebuyutsya chrezvychajno raznoobraznye dozy. Okazalos', chto v nekotorykh sluchayakh radiatsionnye povrezhdeniya mogut isklyuchit' vozmozhnost' primeneniya ehtogo metoda u nekotorykh nasekomykh. Prepyatstvie, kotoroe zachastuyu prikhoditsya preodolevat', zaklyuchaetsya v otsutstvii prakticheskikh metodov

A distilled fire of thirteen hells – Jens Baggesen between the Germans and the Danes

DEFF Research Database (Denmark)

Blicher, Henrik

Venskabet mellem Carl Friedrich Cramer og Jens Baggesen blev et politisk anliggende for første gang under den såkaldte Tyskerfejde i 1789, da latente spændinger mellem en indflydelsesrig tysk gruppering i København en og en større nationalt orienteret gruppe borgere blev til åben konflikt. Jens B...... tyske aristokrati i København. Det prekære forhold har sat sig indirekte, men tydelige spor i rejseskildringen Labyrinten (bd. 1-2, 1792-93), der på denne baggrund fremstår som en apologi for Jens Baggesens position....

Tal R - tal, takt og tone

DEFF Research Database (Denmark)

Grymer Bargeman, Marianne

2005-01-01

Tal R, John Kørner og Kaspar Bonnén er blevet kaldt eksponenter for det nye/nyekspressive maleri. Bag betegnelser som denne tegner sig spor af kunsthistorie, køn og kapital. I artiklen udfolder og eksemplificerer Marianne Grymer Bargeman nogle af de forskellige betegnelsers implikationer ved at se...... nærmere på maleriets historie, litteraturen om Tal R og et maleri af kunstneren. Hvorfor er det så svært at tale om maleri i dag, og hvad sker der, når vi alligevel gør det?...

S-18: Futbol ve Hentbolcuların Fonksiyonel Hareket Değerlendirme Test Sonuçlarının Karşılaştırılması

Directory of Open Access Journals (Sweden)

Ahmet Bayrak

2017-03-01

Full Text Available AMAÇ: Functional Movement Screen(FMS(fonksiyonel hareket değerlendirme, sporcularda hareket kapasitesini ve yaralanma riskini değerlendirmek amacıyla kullanılan bir test bataryasıdır. Bu çalışma; profesyonel farklı iki spor branşındaki (Futbol ve hentbol sporcuların yaralanma riskini FMS skorları ile belirlemek ve farklı iki branşın yaralanma riskini karşılaştırmak amacı ile yapıldı. YÖNTEM: Çalışmaya Konya Spor U19 takımından 22 futbolcu ve Selçuklu Belediye Spor Hentbol takımından 24 hentbol sporcusu dahil edildi. Sporculara çalışma öncesi onam formları imzalatıldı ve çalışma hakkında bilgi verildi. Sporcularda yedi temel hareket (hurdle step, inline lunge, shoulder mobility, trunk pushup, deepsquat, activestraightlegraise, rotatorystability değerlendirildi ve bu hareketler 1-2-3 puanlama sistemine göre puanlandı. Değerlendirme esnasında çift kamera kullanılarak görüntüler analiz edildi. Yapılan puanlama sonucu çıkan veriler değerlendirilirken; FMS skoru yaralanma riski için cut off değeri 14 alındı. Sağ ve sol ölçümler için ortalaması alınarak toplama dahil edildi. Asimetri belirlenirken her bir test için bireysel skorların sağ ve sol farkı alınarak, bir ve daha yukarısı için asimetri var; fark sıfır ise asimetri yok olarak kodlandı. FMS skorlarının gruplar arasında toplam ve ortalamalarının karşılaştırılmasında bağımsız t testi kullanıldı. Kategorik değişkenler için ki-kare ve 2x2 tablolar için Fisher’sExact uygulandı ve odds oranları hesaplandı.BULGULARYapılan analiz sonucunda hentbol oyuncularının futbol oyuncularına göre 4,2 kat daha fazla yaralanma riski taşıdıkları saptandı (p>0.05. Alt parametreleri değerlendirildiğinde, sağ ve sol asimetrisi, shoulder mobility testi ve inline lunge asimetrisi için iki grup arasında ile anlamlı bir fark bulundu(p0.05. TARTIŞMA VE SONUÇ22 futbol oyuncusu ve 24 hentbol oyuncusu ile

16 YAŞ GRUBU SPORCU GENÇ KIZLARDA MAX V02 VE BA ZI SOLUNUM PARAMETRELERİ ÜZERİNE BİR ARAŞTIRMA

OpenAIRE

MOĞULKOÇ, Rasim; BALTACI, A. Kasım; KELEŞTÎMUR, Haluk; KOÇ, Selahattin; ÖZMERDİVENLİ, Recep

2018-01-01

Atletizm ve basketbol sporunun 16 yaş grubu genç kızlarda bazı solunum parametreleri ile maksimal oksijen voliimii (MaxV02)'nü nasıl etkilediğinin ortaya konulabilmesi amacıyla planlanan çalışma, 12 kişilik kontrol ile 5 yıldır aktif spor yapan İS kişilik atletizm, 12 kişilik basketbolcu olmak üzere toplam 42 birey üzerinde gerçekleştirildi. Deneklerin MaxVOl'u indirekt metodla (Cooper Testi) ve solunum parametreleri spirometrede kuru sistemle tay...

Verden i Norden - Norden i Verden

DEFF Research Database (Denmark)

Duelund, Peter

Det nordiske kultursamarbejde har siden kulturaftalen mellem de nordiske lande i 1971 udvikling sig i flere retninger. Artiklen er udarbejdet på opfordring af Nordisk Ministerråd, som et afsæt for at beskrive, analysere og vurdere det nordiske kultursamarbejde historiske udvikling og fremtidige...... udfordringer i en globaliseret verden. Hvor bør de nordiske landes kulturpolitik og det nordiske kultursamarbejde tage fat ved indgangen til det 21. århundrede, hvis Norden skal sætte sig spor i Europa og den øvrige verden med udgangspunkt i den velfærdsbaserede kulturpolitik, der er oparbejdet efter 2...

Lze rozřešit spor mezi realismem a konstruktivismem?

Czech Academy of Sciences Publication Activity Database

Marvan, Tomáš

2015-01-01

Roč. 7, č. 2 (2015), s. 96-103 ISSN 1804-0969 Institutional support: RVO:67985955 Keywords : Jaroslav Peregrin * realism * constructivism * Rorty Subject RIV: AA - Philosophy ; Religion http://filosofiednes.ff.uhk.cz/index.php/hen/article/view/225

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)

Frikommuneforsøg mellem innovation og bureaukrati

DEFF Research Database (Denmark)

Poulsen, Julie Sand; Agger Nielsen, Jeppe

2014-01-01

Frikommuneordningen anno 2012 repræsenterer et interessant forsøg på at bryde med unødigt statslig kontrol og i stedet opmuntre til kreativitet i den lokale velfærdsstat. Via et casestudie af en frikommunes innovationsbestræbelser i beskæftigelsesindsatsen, bidrager artiklen med en af de første...... balanceringen af samtidige ønsker om stabil drift og nytænkning. Trods ihærdige innovationsanstrengelser i jobcenterorganisationen ser vi tendenser til at kommunen fraviger de innovative spor (fx idéen om at sætte medarbejderne fri) og i stedet falder tilbage til kendte virkemidler (kontrol). Artiklen afsluttes...

Il "caso Stamina" nella prospettiva della sociologia medica

OpenAIRE

Campa, Riccardo

2014-01-01

Debata związana z terapeutycznym zastosowaniem komórek macierzystych, od dość dawna prowadzona w atmosferze sporów, w ostatnich jednak dwóch latach skoncentrowała się wokół tzw. "przypadku Stamina", włoskiego zjawiska, które przybrało wymiar światowy. Władze i autorytety włoskie dokonały autoryzacji terapii bazującej na wstrzykiwaniu mezenchymalnych komórek macierzystych, która w uznaniu międzynarodowej społeczności naukowej miałaby być "pozbawioną podstaw naukowych". Ta wyjątkowa sytuacja pr...

Disinfestation of Dried Figs by Gamma Radiation; Desinsectation des figues seches par les rayons gamma; Dezinfestatsiya sushenogo inzhira s pomoshch'yu gamma-izlucheniya'; Desinfestacion de higos secos mediante rayos gamma

Energy Technology Data Exchange (ETDEWEB)

Papadopoulou, C. P. [Department of Biology, Democritus Nuclear Research Centre, Aghia Paraskevi, Attica (Greece)

1963-09-15

efectuando investigaciones sobre la desinfestacion de los productos agricolas almacenados. En esas investigaciones se han utilizado recientemente con exito los rayos gamma. Los higos secos constituyen uno de los principales productos de exportacion de Grecia y los insectos ocasionan perdidas importantes. Las investigaciones tenian las siguientes finalidades: a) determinar las dosis de radiacion necesarias para destruir ciertas especies de insectos que atacan los higos en diversas fases de su desarrollo, o destruir sus huevos impidiendo asi que se reproduzcan; b) determinar las modificaciones fisicas y quimicas que las radiaciones producen en la contextura de los higos secos. Se han estudiado las especies siguientes: Plodia interpunctella, Ephestia cautella, Carpophilushemipterous, Oryzaephilus surinamensis y Lasioderma serricorne. En la memoria se estudian las dosis optimas de radiacion que no producen dafios aparentes en la contextura de los higos. (author) [Russian] V techenie mnogikh let provodyatsya issledovaniya to voprosam dezinfestatsii sel'skokhozyajstvennykh produktov v khranilishchakh. Nedavno gamma-izluchechie bylo uspeshno primeneno pri provedenii takikh issledovanij. Sushenyj inzhir sostavlyaet odin iz osnovnykh produktov ehksporta Gretsii. Ezhegodno nasekomye nanosyat ser'eznyj ushcherb ehtomu produktu. Tsel' issledovaniya: 1) opredelenie doz izlucheniya, neobkhodimykh dlya unichtozheniya nekotorykh vidov nasekomykh, porazhayushchikh sushenyj inzhir, na razlichnykh stadiyakh ikh razvitiya, i dlya unichtozheniya ikh yaits i predotvrashcheniya takim obrazom ikh razmnozheniya; i 2) opredelenie fiziko-khimicheskikh izmenenij tekstury sushenogo inzhira pod dejstviem izlucheniya. Issledovaniya provodilis' so sleduyushchimi vidami: Plodia Interpunctella, Ephestia coutella, Carpophilus hemipterous, Gryzaephllus surinamensis i Lasioderma serricorne. Obsuzhdayutsya neobkhodimye optimal'nye dozy. Pri ehtikh dozakh ne nablyudaetsya vidimogo narusheniya tekstury inzhira pod

Plot til lyst

DEFF Research Database (Denmark)

Sandvik, Kjetil

Den velfungerende krimi faciliterer denne dobbelte plotlæsning ved at muliggøre en særlig form for legende og udforskende interaktion mellem læser og plot: Ved at lægge spor ud og holde tolkningsmuligheder og løsningsmuligheder åbne får vi mulighed for at påtage os og udføre opklaringsarbejdet side......, der inviterer os med ind i selve handlingens rum og forløb og giver os forskellige handlingsmuligheder i forhold til disse. I bogen omtales denne særlige form for plot for forlystelsesplot med henvisning til forlystelsesparken og den særlige form for interaktiv fortælleform, som vi finder der: en...

Bag facaden

DEFF Research Database (Denmark)

Hvidtfeldt, Susanne; Sjøstedt, Lotte Ebsen

Bag facaden er et task-baseret materiale der går bag om danskerne kulturelt og sprogligt. Det henvender sig til spor 3-learnere på de sidste trin, men kan i nogle klasser godt anvendes tidligere. Teksterne i bogen er autentiske dagbogsnotater skrevet af danskere i alle aldre. Den nærværende og...... eller hun er i sin sprogtilegnelse og i sit behov for viden om dansk kultur og samfund. Derudover forbereder det fint learneren til almenprøve 2 og DUF eksamen, både hvad angår indhold og arbejdsformer. I forløb hvor der stiles mod folkeskolens afgangseksamner er Bag facaden relevant som supplerende...

Krig på kniven eller på kvaliteten - den danske TV-dokumentarisme i konkurrencealderen

Directory of Open Access Journals (Sweden)

Helle Fritze

1992-08-01

Full Text Available I 90´ernes faktaformidling er TV-dokumentarismen et væsentligt omdrej- ningspunkt - da genren på både TV2 og DR med flagskibe som Fak2'eren, Reportageholdet, Søndagsdokumentaren, DR-Feature og DR-Dokumentar er genstand for en udpræget satsning, og desuden, direkte eller indirekte udtrykt, opfattes som eksempel til efterfølgelse for en faktaformidling på den halvkommercielle mediestrukturs betingelser. Således udgør genren med sin særlige institutionelle rolle et væsentligt spor til konkurrencealderens omdefinerede public service-begreb, og den kan derfor også være med til at pejle faktaformidlingens fremtidige udvikling.

Distribution of the invasive plant species Heracleum sosnowskyi Manden. in the Komi Republic (Russia).

Science.gov (United States)

Chadin, Ivan; Dalke, Igor; Zakhozhiy, Ilya; Malyshev, Ruslan; Madi, Elena; Olga Kuzivanova; Kirillov, Dmitrii; Elsakov, Vladimir

2017-01-01

Occurrences of the invasive plant species Heracleum sosnowskyi Manden. in the Komi Republic (northeastern part of European Russia) were recorded and published in the Global Biodiversity Information Facility (GBIF http://www.gbif.org) using the RIVR information system (http://ib.komisc.ru/add/rivr/en). RIVR stands for "Rasprostranenie Invasionnyh Vidov Rastenij" [Occurrence of Invasion Plant Species]. This citizen science project aims at collecting occurrence data about invasive plant species with the help of citizen scientists. Information can be added by any user after a simple registration (concept) process. However, the data published in GBIF are provided only by professional scientists. The total study area is approximately 19,000 km 2 . The GBIF resource contains 10894 Heracleum sosnowskyi occurrence points, each with their geographical coordinates and photographs of the plants in the locus of growth. The preliminary results of species distribution modelling on the territory of European North-East Russia presented.

Vliv polarizační disperze na chybovost optického kanálu

OpenAIRE

Dorociak, Petr

2008-01-01

Diplomová práce se zabývá vlivem polarizační vidové disperze na optický komunikační systém. Polarizační vidovou disperzi matematicky popisuje pomocí Stokesova a Jonesova prostoru a zajišťuje její teoretické příčiny vzniku, které jsou rozděleny na vnější a vnitřní vlivy. Na základě těchto vlivů vzniká diferenční skupinové zpoždění DGD (Differential Group Delay), které způsobuje, že jednotlivé polarizační vidy mají mezi sebou časové zpoždění a dochází k omezení přenosové rychlosti. Diplomová pr...

At sætte spor på en vandring fra Aquinas til Bourdieu

DEFF Research Database (Denmark)

introduktør til i Norden og som manifest fortolker af den praxeologiske tilgang, som Pierre Bourdieus teori og begreber genererede. Bogen er inddelt i fire hovedområder: Et område, kaldet familien, hvor Staf Callewaerts hustru Inger og to børn Agnes og Teresa skriver personligt til Gustave (Staf) Joséphe...

A history of study on safety of irradiated foods (2). Clostridium botulinum in irradiated seafood from the reports by the United States Atomic Energy Commission

International Nuclear Information System (INIS)

Miyahara, Makoto

2004-01-01

This review is a part of ''history of study on the wholesomeness of irradiated foods''. Clostridium botulinum in irradiated seafood have been of great concern at the beginning of development of irradiated food. This review describes the studies on Clostridium botulinum by US. Atomic Energy Commission in 1960's with their data and what they recognized it as a risk factor of irradiated foods. In 1999 FAO/IAEA/WHO reported that Clostridium botulinum type A and B spors are apparently the most resistant and thus of great concern in the radiation sterilization of food, whereas the less radiation-resistant type E spores are important in low dose irradiation of foods, particularly fishery products. This review also describes current break-through application by NASA and Canadian irradiator. (author)

Gıdaların İyonize Radyasyonla Muhafazasında Radyasyonun Mikroorganizmalar Üzerine Etkileri

OpenAIRE

Özbilgin, Seher; Acar, Jale

2015-01-01

Gıdalarda bulunabilen mikroorganizmalar iyonlaştırıcı radyasyonla öldürülmekte veya gelişmeleri durdurulmaktadır. Bu da iyonlaştırıcı radyasyonun direkt veya indirekt etkisiyle gerçekleşmektedir. Mikroorganizmanın cinsi, vejetatif veya spor formda oluşu, ortamın bileşimi ve sıcaklık gibi faktörler ışınlara karşı duyarlılığı etkilemektedir. Mikroorganizmalar arasında bakteriler, küf ve mayalara kıyasla ışınlara daha dirençli olup, sporlu bakteriler ve özellikle C. botulinum’ un ışınlara karşı...

International sports organization in governance and development of Olympic sports [Mezhdunarodnye sportivnye organizacii v upravlenii i razvitii olimpijskikh vidov sporta

Directory of Open Access Journals (Sweden)

Sazonets V.I.

2011-11-01

Full Text Available The aspects of development of physical culture and Olympic types of sport are considered from positions of approach of the systems. The structure of the socio-economic system is presented: global, international, national level of administrative mechanism. The basic going is investigational near management. The role of international organizations is certain in a management development of Olympic types of sport. The role of the National Olympic committees which regulate the processes of management development of physical culture and sport a sphere at state level is exposed. The tendencies of bringing in of off-budget facilities Olympic organizations of the separate European countries are marked.

DETERMINING THE FEATURES OF SPORTSWEAR TAKING PLACE IN FAST FASHION COLLECTIONS

Directory of Open Access Journals (Sweden)

Birsen ÇİLEROĞLU

2014-07-01

Full Text Available Spor ts occupies the first place among most siginificant factors increasing quality of life . It has b ecome difficult to allocate proper time for sports in the course of heavy work pace and flow of life . Such circumstances have led people to increase minor sport activities which could be done during short times allocated from daily living, thus, orienting people‟s clothing preference towards sportswear . The feeling of easiness and comfort sportswear offer to individuals enhances further such preference . The feeling of comfort individuals feel in their clothing depends on the presence of physiologic and psy chologic coherence between their bodies and environment . Demand for sportswear allowing easy - movement increased upon rise in life dynamism and standards, it began to be preferred regarding comfort of use and to take its place in daily clothing, too, define d as “casual” clothing . Spor tswear being preferred very much ; has caused the firms making and producing fashion and clothing design to give place in their collections to sportswear category . Particularly, in firms where model and clothing varieties are pl enty and new model design is made in short intervals, named as, “fast fashion” , tendency towards sportswear is growing increasingly . The sale rates of sportswear, utilization rates of which are growing increasingly, has maximum value among total clothing s ales in E - business field, too. In this research, it has been aimed to determine the features of sportswear taking place in “fast fashion” clothing collections . In order to accomplish this aim, 2014 collections of four different brands taking place in natio nal and international markets have been examined through visual analysis method . In the examinations; sportswear styles of the brand, model and style differences between brands and states of using 2014 fashion trends have been taken into account. The data obtained at the end of the analyses made have been

Canadians Seeking Solutions and Innovations to Overcome Chronic Kidney Disease (Can-SOLVE CKD): Form and Function

Science.gov (United States)

Levin, Adeera; Adams, Evan; Barrett, Brendan J.; Beanlands, Heather; Burns, Kevin D.; Chiu, Helen Hoi-Lun; Chong, Kate; Dart, Allison; Ferera, Jack; Fernandez, Nicolas; Fowler, Elisabeth; Garg, Amit X.; Gilbert, Richard; Harris, Heather; Harvey, Rebecca; Hemmelgarn, Brenda; James, Matthew; Johnson, Jeffrey; Kappel, Joanne; Komenda, Paul; McCormick, Michael; McIntyre, Christopher; Mahmud, Farid; Pei, York; Pollock, Graham; Reich, Heather; Rosenblum, Norman D.; Scholey, James; Sochett, Etienne; Tang, Mila; Tangri, Navdeep; Tonelli, Marcello; Turner, Catherine; Walsh, Michael; Woods, Cathy; Manns, Braden

2018-01-01

Purpose of review This article serves to describe the Can-SOLVE CKD network, a program of research projects and infrastructure that has excited patients and given them hope that we can truly transform the care they receive. Issue Chronic kidney disease (CKD) is a complex disorder that affects more than 4 million Canadians and costs the Canadian health care system more than $40 billion per year. The evidence base for guiding care in CKD is small, and even in areas where evidence exists, uptake of evidence into clinical practice has been slow. Compounding these complexities are the variations in outcomes for patients with CKD and difficulties predicting who is most likely to develop complications over time. Clearly these gaps in our knowledge and understanding of CKD need to be filled, but the current state of CKD research is not where it needs to be. A culture of clinical trials and inquiry into the disease is lacking, and much of the existing evidence base addresses the concerns of the researchers but not necessarily those of the patients. Program overview The Canadian Institutes of Health Research (CIHR) has launched the national Strategy for Patient-Oriented Research (SPOR), a coalition of federal, provincial, and territorial partners dedicated to integrating research into care. Canadians Seeking Solutions and Innovations to Overcome Chronic Kidney Disease (Can-SOLVE CKD) is one of five pan-Canadian chronic kidney disease networks supported through the SPOR. The vision of Can-SOLVE CKD is that by 2020 every Canadian with or at high risk for CKD will receive the best recommended care, experience optimal outcomes, and have the opportunity to participate in studies with novel therapies, regardless of age, sex, gender, location, or ethnicity. Program objective The overarching objective of Can-SOLVE CKD is to accelerate the translation of knowledge about CKD into clinical research and practice. By focusing on the patient’s voice and implementing relevant findings in

What moves us?

DEFF Research Database (Denmark)

2015-01-01

Katalog til udstillingen på Museum Jorn - What moves us? Le Corbusier & Asger Jorn - 12. sept. - 13. dec. 2015. Kataloget undersøger Le Corbusiers skifte fra en rationelt funderet tilgang til arkitekturen til en poetisk, materialistisk tilgang i efterkrigstiden. Den viser hans indflydelse på den...... yngre Asger Jorn og beskriver danskerens første beundring, som sidenhen forvandledes til skarp kritik. Kataloget, som er rigt illustreret med billeder af Le Corbusiers og Asger Jorns kunst og arkitektur, indeholder også genoptryk af originale tekster, samt bidrag i ord og billeder fra fremtrædende...... eksperter. Kataloget indeholder en række artikler af internationale skribenter under flg. overskrifter: Le Corbusier - kunstnerarkitekten i efterkrigstidens Europa Le Corbusier og Asger Jorn - David mod Goliat Gensyn med Le Corbusier - spor i dansk arkitektur og byrum...

DEVLET DEMİRYOLLARINDA SPORTİF FAALİYETLER VE ADANA DEMİRSPOR KULÜBÜ

OpenAIRE

ÇANAK, Erdem

2015-01-01

Cumhuriyetin ilk yıllarında sağlıklı nesillerin yetişmesi/yetiştirilmesi için sportif faaliyetlere büyük önem verilmiştir. Hatta bu faaliyetlerin düzenli bir şekilde yapılabilmesi için de kulüpleşme faaliyetleri teşvik edilmiştir. Dönemin önemli müesseseleri de kurmuş oldukları spor kulüpleriyle bu sürece katkıda bulunmuşlardır. Bu müesseselerden birisi olan Devlet Demiryolları da “Demirspor” adıyla çeşitli kulüpler kurmuştur. Bu kulüpler sayesinde müessesenin işçileri düzenli bir şekilde spo...

Offentlighed og Public Relations

Directory of Open Access Journals (Sweden)

Lars Heltoft

1993-09-01

Full Text Available Lars Heltoft, der er en af grundlæggerne af Public Relationsuddannelsen på Roskilde Universitetscenter, kaster i artiklen et kritisk blik på den akademiske forskning i feltet public relations. Selv i nyere udgaver af PR-forskningen - af mange anset for "progressive", f.eks. James Grunings og Jon Whites arbejder - ser Lars Heltoft tydelige spor af PR- professionens selvforståelse og legitimationsbehov. Resultatet er, at den "offentlighed", der burde være kernen i den videnskabelige beskæftigelse med public relations, "forsvinder i den blå luft". Han argumenterer for, at Habermas´ forestilling om "offentlighed" stadig institutionaliserer mulig- heden for kritisk diskurs inden for feltet, samtidig med at han i sproghand- lingsteoretisk perspektiv problematiserer Habermas´ legitimationsbegreb, fordi det undtager private virksomheder og organisationer.

Når det er svært at være ung i DK

DEFF Research Database (Denmark)

Nielsen, Jens Christian; Sørensen, Niels Ulrik; Ozmec, Martha Nina

I rapporten Når det er svært at være ung i DK – unges trivsel og mistrivsel i tal offentliggør Center for Ungdomsforskning resultaterne af en stor videnskabelig spørgeskemaundersøgelse om trivsel og mistrivsel blandt 15-24-årige unge i Danmark. Rapporten indgår i det treårige forskningsprojekt Når...... det er svært at være ung i DK, som Center for Ungdomsforskning udfører med støtte fra Egmont Fonden. Rapporten bygger på telefoninterviews med 3.481 unge, der udgør et repræsentativt udsnit af alle 15-24-årige unge i Danmark. I rapporten forfølges de unges trivsel og mistrivsel gennem to spor: 1) Et...

Mediace jako mimosoudní způsob řešení sporů

OpenAIRE

Kozlová, Kateřina

2012-01-01

The purpose of this thesis is to present mediation as an Alternative Dispute Resolution (ADR). The selection of this topic is influenced by the currency of this issue. This currency can be seen in the adoption of mediation act, which is first of its kind. The thesis is composed of five chapters. The first chapter deals with the general concept of ADR and presents different types of ADR. The second chapter then presents mediation as one of the types of ADR, and focuses on the concept of mediat...

Health Services Research Spending and Healthcare System Impact; Comment on “Public Spending on Health Service and Policy Research in Canada, the United Kingdom, and the United States: A Modest Proposal”

Directory of Open Access Journals (Sweden)

Morris L. Barer

2018-03-01

Full Text Available The challenges associated with translating health services and policy research (HSPR evidence into practice are many and long-standing. Indeed, those challenges have themselves spawned new areas of research, including knowledge translation and implementation science. These sub-disciplines have increased our understanding of the critical success factors associated with the uptake of research evidence into (system practice. Engaging those for whom research evidence is likely to help solve implementation and/or policy problems, and ensuring that they are key partners throughout the research life-cycle, appear to us (based on current evidence to be the most direct and effective paths to improved knowledge translation. In that regard, building on Canada’s recent Strategy for Patient Oriented Research (SPOR would seem to offer considerable promise. The “modest” proposals offered by Thakkar and Sullivan seem less likely to bear fruit.

S-30: Sporcularda Düzenli Aktivitenin D Vitamini Düzeylerine Etkisi: Kesitsel Çalışma

Directory of Open Access Journals (Sweden)

Tufan Nayır

2017-03-01

Full Text Available GirişD vitamini; son zamanlarda, birçok alanda araştırma yapılan bir konu haline gelmiştir. Sporcularda kemik yapısı, kas gücü ve iyileşmesi, hatta performans üzerine de etkili olduğu düşünülmektedir. Çalışmamızda spora yeni başlamış olan ve uzun süredir spor yapan sporcularda d vitamini düzeyi arasında fark olup olmadığını araştırdık. Gereç ve yöntemBaltalimanı Kemik Hastalıkları E.A.H Spor hekimliği polikliniğine Nisan 2015-2016 tarihlerinde; başvuran 447 Kadın, 679 Erkek (kadın 16,2±9,2;erkek 15,8±8,9 yaş toplamda 1126 sporcu çalışmaya dahil edildi. Bu grupta 17 farklı dalda sporcu bulunmaktaydı. Sporcuların D Vitamini düzeyleri değerlendirildi (Tablo 1.25(OH D vitamini düzeyleri Zivak Tandem Gold LC-MS/MS (Istanbul-TURKİYE sıvı kromotografi- mass spektrometri ile ölçüldü. Referans aralığı olarak; D Vitamini40 ng/mL (100 nmol/L yeterli olarak tanımlandı. İstatiksel analizde, SPSS 16,0 programı ve Kruskal Wallis,Anowa ve t testi ile tanmlayıcı istatistikler yapıldı. BulgularAraştırmaya katılanların % 39,7’si kadın iken % 60,3’ü erkekti. Yaş dağılımlarına göre bakıldığında her iki cinste de yarıdan fazlası 11-20 yaş sporculardan oluşmakta idi. Araştırma grubunda kadın ve erkek arasında boy ve kilo bakımından anlamlı fark vardı (p=0,03 ve p=0,00. Sporcuları; spora başlama yıllarına göre sınıflandırdık. Gruplar arasında D vitamini düzeyleri açısından istatistiksel olarak anlamlı bir fark bulunamadı(Tablo 2. Spora yeni başlayanları D vitamini düzeyleri düşük olmasına rağmen diğer gruplar ile karşılaştırıldığında anlamlı bir fark elde edemedik(P=0,577 (Tablo 2. Kadınlarda ve erkeklerde spora başlama yıllarına göre ALP, F osfor, Ca ve PTH değerlerine bakıldığında aralarında istatistiksel olarak anlamlı bir fark bulunmamıştır.SonuçSporcularda D vitamini düzeyinin önemi gün geçtikçe artmaktad

Irradiation as a Quarantine Control Measure; Irradiation Comme Mesure de Controle Sanitaire; Obluchenie kak mera po karantinnomu kontrolyu; La Irradiacion Como Sustitutivo de las Medidas de Cuarentena

Energy Technology Data Exchange (ETDEWEB)

Cornwell, P. B. [Rentokil Laboratories Ltd., Felcourt, Sussex (United Kingdom)

1966-11-15

este problema y si la irradiacion de ciertos productos puede sustituir las tecnicas de fumigacion actualmente aplicadas. Cita algunos ejemplos de como pueden emplearse las radiaciones para desinfestar el equipaje de los viajeros en aeropuertos, impedir la propagacion de plagas de la fruta a traves de las fronteras y tratar la madera de importacion. Considera que la suelta de insectos esterilizados como medida continua de control puede sustituir las operaciones de cuarentena y de tratamiento de zonas para la contencion de plagas. (author) [Russian] VT965 godu cherez granicy SShA prosledovalo sto vosem'desjat shest' millionov chelovek. Iz 446 000 partij gruzov, obsledovannyh v portah pribytija SShA v proshlom godu, 32 000 okazalis' zarazhennymi. Gromadnoe uvelichenie mezhdunarodnogo turizma, obmena tovarami v processe torgovli i skorosti peredvizhenija iz odnoj chasti mira v druguju trebujut prinjatija strogih mer po predotvrashheniju vsemirnogo rasprostranenija 'nezhelatel'nyh' vidov nasekomyh. V sluchae pojavlenija jekzoticheskih vidov karantinnyj kontrol' za kolichestvom nasekomyh-vreditelej, ih rasprostraneniem i bystrym ih razmnozheniem trebuet bol'shih usilij po provedeniju kampanij, sderzhivajushhih rasprostranenie nasekomyh s cel'ju ih unichtozhenija. Javljaetsja li ''kontrol'' naibolee jekonomichnym sredstvom bor'by i rasprostraneniem nezhelatel'nyh vidov nasekomyh? Javljaetsja li sozdanie tehnicheskih sredstv po obrabotke posredstvom obluchenija opredelennyh vidov gruzov v punktah importa ili jeksporta, ili v sbornyh punktah vozmozhnym otvetom na jetot vopros? Mozhet li obluchenie nekotoryh produktov zamenit' sushhestvujushhie metody dezinfekcii? Privodjatsja primery vozmozhnogo ispol'zovanija obluchenija dlja obrabotki bagazha passazhirov v ajeroportah v celjah predotvrashhenija rasprostranenija nasekomyh-vreditelej fruktovyh kul'tur za predely vnutrennih granic gosudarstva i primery obrabotki drevesiny pri vvoze. Nepreryvnoe rasprostranenie sterilizovannyh

Radiation induced processes in moss cells

International Nuclear Information System (INIS)

Doehren, R. v.

1975-01-01

The moss F.h. shows apical growth in the protonema cells which spread radially from the spor. Every apical daughter cell during the state of 'Caulonema' and just before in the state of 'Caulonema Primanen' initiates cell division as soon as more than twice the length of the mother cell is reached. All this allows to follow radiation effects in single cells conveniently. UV irradiation on the range of 254 nm and 280 nm delivered at different parts of the cell area delays cell division markedly may suppress it, and is able to stop the process of growing in relation to the delivered dose and to the irradiated area as well. In case of irradiation of the area next to where the membrane is just being formed - that is to say next to the phragmoplast - the new membrane will be wrongly oriented. In particular giant cells are occurring in the case of nucleus irradiation during early prophase. (orig./GSE) [de

Radiation induced processes in moss cells. Short term and long term radiation responses of special interest after microbeam uv irradiation of the haploid moss cells of Funaria hygrometrica

Energy Technology Data Exchange (ETDEWEB)

Doehren, R v [Mainz Univ. (F.R. Germany). Inst. fuer Biochemie

1975-01-01

The moss F.h. shows apical growth in the protonema cells which spread radially from the spor. Every apical daughter cell during the state of 'Caulonema' and just before in the state of 'Caulonema Primanen' initiates cell division as soon as more than twice the length of the mother cell is reached. All this allows to follow radiation effects in single cells conveniently. UV irradiation on the range of 254 nm and 280 nm delivered at different parts of the cell area delays cell division markedly may suppress it, and is able to stop the process of growing in relation to the delivered dose and to the irradiated area as well. In case of irradiation of the area next to where the membrane is just being formed - that is to say next to the phragmoplast - the new membrane will be wrongly oriented. In particular giant cells are occurring in the case of nucleus irradiation during early prophase.

Fat crystallization in dairy products

DEFF Research Database (Denmark)

Rønholt, Stine

har et mere kompakt krystalnetvrk sammenlignet med AMF produkterne. Resultatet er dog anderledes hvis fraktionen af fedtdråber ændres, idet en reduceret mængde fedtdråber resulterer i høj G' (Artikel VI). Under videre opbevaring ved 5 C vil effekten af efter krystallisation dominere både mikrostruktur...... population af beta-krystaller og spor af . De undersøgte produktionsparametre påvirker dog, i alle de 28 dage undersgt, bagesmrets evne til at bevare krystalnetvrket til trods for gentagen kraft påvirkning. Både kort opholdstid og øget rotationshastighed øger bagesmørets evne til at modstå nedbrydning. Det....... Resultaterne understreger dog samtidig at efter krystallisation under efterfølgende opbevaring reducerer de indledningsvist observerede forskelle i reologiske egenskaber, mikrostruktur og krystal struktur. Fra et industrielt synspunkt betyder dette, at der er et bredt produktionsmæssigt vindue til at producere...

Leadership Pipeline på rejse i den offentlige sektor

DEFF Research Database (Denmark)

Nielsen, Jeppe; Dahl, Kristian Aagaard

2015-01-01

Forestillingen om, at ledelsesopgaven varierer alt efter hvilket lederniveau, der fokuseres på, trækker spor tilbage til en række tidlige ledelsesteoretikere. I de senere år har tilgangen på ny tiltrukket sig opmærksomhed såvel i praksisfeltet som blandt forskere, nok tydeligst illustreret via ud...... hinanden, og at der i praksis ikke var én, men flere idéer om Leadership Pipeline, der rejste på tværs af felter og organisationer....... udbredelse af Leadership Pipeline modellen. Forskningslitteraturen om Leadership Pipeline er imidlertid beskeden. Med teoretisk ammunition fra ”idé på rejse” perspektivet og et multi-level case studie i den danske offentlige sektor belyser artiklen udbredelse og implementering af Leadership Pipeline. Ved...... at anvende skiftende teoretiske begreber og henholdsvis zoome-ind (organisationsniveau) og zoome-ud (feltniveau) viser artiklen, hvordan en række gensidigt forbundne teoretiserings- og translationsaktiviteter sikrede Leadership Pipeline legitimitet og fremskyndede dens udbredelse samtidig med, at forskellige...

Historien trækker sine blodige spor i Cataloniens drøm om selvstændighed

DEFF Research Database (Denmark)

Østergaard, Uffe

2017-01-01

Striden om, hvorvidt Catalonien er en region i Spanien eller en suveræn nationalstat i EU, kulminerer i næste uge med en kontroversiel folkeafstemning. Cataloniernes konflikt med den spanske centralmagt rækker langt tilbage i tiden historisk set....

Application of radioisotopes to the investigation of the kinetics and mechanism of reactions of some inorganic complex compounds; Application des radioisotopes a l'etude de la cinetique et du mecanisme des reactions de certains complexes inorganiques; Primenenie radioizotopov k issledovaniyam kinetiki i mekhanizma reaktsij nekotorykh neorganicheskikh slozhnykh soedinenij; Aplicacion de los radioisotopos al estudio de la cinetica y del mecanismo de las reacciones de algunos complejos inorganicos

Energy Technology Data Exchange (ETDEWEB)

Harris, Gordon M [Department of Chemistry, University of Buffalo, Buffalo 14, NY (United States)

1962-03-15

estado de equilibrio, efectuada en la reaccion de intercambio de carbonatos. De la misma manera, los datos relativos al efecto cinetico de los isotopos en la hidratacion del ion Co(NH{sub 3}){sub 4}CO{sub 3}{sup +} catalizada por acidos han corroborado las teorias sobre el caracter de la fase de ruptura de enlaces, que determina la velocidad de estas reacciones. Por ultimo, los experimentos con trazadores radiactivos facilitan frecuentemente el estudio de las posiciones sucesivas de ciertos atomos o radicales en las reacciones inorganicas para las que existen diversas explicaciones teoricamente posibles. Como ejemplo puede citarse la demostracion de que en la oxidacion del ion tiocianato por peroxido de hidrogeno, el cianuro no es un producto intermedio que sufre un intercambio rapido a pesar de que constituye uno de los principales productos finales. (author) [Russian] Ispol'zovanie radioizotopov okazyvaet neotsenimye uslugi pri issledovanii khimicheskikh neorganicheskikh reaktsij samykh raznoobraznykh vidov i, v chastnosti, reaktsij so slozhnymi ionizirovannymi veshchestvami v vodnykh rastvorakh. Odnim iz vazhnykh metodov sluzhit izuchenie skorosti i mekhanizma protsessov izotopnogo obmena. Tak, naprimer, byl proveden ryad issledovanij obmen a mezhdu t.n. ''svobodnym'' karbonatom, mechennym uglerodom-14, i svyazyvayushchim karbonatom oktaehdral'nykh slozhnykh ionov tipa CoA{sub 2}CO{sub 3}{sup +}, gde A = 2 NH{sub 3}, ehtilendiamin (en), propilendiamin (pn) ili trimetilendiamin (tn). EHti issledovaniya priveli k dovol'no tochnomu ponimaniyu kharaktera reaktsij ehtogo roda po zamene svyazi, a takzhe roli v ehtoj reaktsii neuchastvuyushchikh v obmene svyazyvayushchikh aminovykh zven'ev. Analogichnye issledovaniya obmena oksalatov, provedennye so slozhnymi trioaksalatami tipa M (C{sub 2}O{sub 4}){sub 3}{sup -3}, gde M=Co (III), Cr (III) ili Br (III), dali stol' zhe plodotvornye rezul'taty. Drugim metodom, primenimym tol'ko v sluchae ispol'zovaniya radioizotopov s malym

Süleyman Demirel Üniversitesi'nde Bina İçi Radon Konsantrasyonlarının Nükleer İz Dedektörleri Kullanılarak Belirlenmesi

Directory of Open Access Journals (Sweden)

Mehmet Ertan KÜRKÇÜOĞLU

2014-07-01

Full Text Available Kapalı ortamlarda zamanla birikebilen radon gazı alfa parçacıkları yayımlar ve doğal radyoaktivitenin yarısından doğrudan sorumludur. Yüksek seviyede radon ihtiva eden ortamlarda radon ve radon ürünlerinin solunması, akciğerde kanser oluşumuyla bağdaştırıldığından radon konsantrasyonlarının kapalı mekanlar için belirlenmesi oldukça önemlidir. Bu çalışmada, 10 bin dekarlık alana sahip Süleyman Demirel Üniversitesi'nde üçü doğu yerleşkesi, ikisi batı yerleşkesinde olmak üzere toplam beş binadaki (Ziraat Fakültesi, Hukuk Fakültesi, Atatürk Spor Salonu, Mühendislik ve Mimarlık Fakültesi ile Bilgi İşlem Merkezi'ndeki atmosferik radon düzeyleri 92 ölçüm noktasına yerleştirilen CR-39 nükleer iz dedektörleri ile ölçülmüştür. Bu ölçümler yaklaşık 8 haftalık bir süre boyunca, 2010 yılı Mayıs ile Temmuz ayları arasında yapılmıştır. Dedektörlerin analizleri sonucunda; Mühendislik ve Mimarlık Fakültesi, Ziraat Fakültesi, Hukuk Fakültesi, Atatürk Spor Salonu ve Bilgi İşlem Merkezi'ndeki bina içi ortalama radon konsantrasyonlarının sırasıyla 259 Bq/m3, 279 Bq/m3, 265 Bq/m3, 324 Bq/m3 ve 173 Bq/m3 olduğu tespit edilmiştir. Ayrıca bu birimleri kullanan personel ve öğrencilerin radon nedeniyle alacakları tahmini doz miktarları hesaplanmış ve yıllık etkin doz eşdeğerlerinin, yine aynı sırayla 2,7 mSv, 2,9 mSv, 2,8 mSv, 3,4 mSv ve 1,8 mSv düzeyinde olduğu bulunmuştur.

Theoretical and Applied Aspects of Radiation D-Values for Spores of Clostridium Botulinum; Aspects Theoriques et Pratiques des Valeurs D de Rayonnement Appliquees aux Spores de Clostridium Botulinum; Teoreticheskie i prikladnye aspekty koehffitsienta izlucheniya odlya spor Clostridium Botulinum; Aspectos Teoricos y Practicos de los Valores D para Esporas del Clostridium Botulinum

Energy Technology Data Exchange (ETDEWEB)

Grecz, N. [Biophysics Laboratory, Illinois Institute Of Technology, Chicago, IL (United States)

1966-11-15

peroxilo y perhidroxilo). Las variaciones de los valores D{sub 10} de una determinada cepa motivadas por diversas condiciones ambientales pueden relacionarse con los efectos indirectos, en tanto que las variaciones en los valores Dio entre una cepa y otra en condiciones normalizadas se relacionan con la cantidad y la estructura del ADN nucleoide de las esporas. A este respecto, todas las cepas del C. botulinum estudiadas hasta la fecha pueden ser clasificadas provisionalmente en tres grupos. El grupo 1 comprende las cepas (A, B y E); con valores D de 0,13 Mrad aproximadamente o menores. Estas esporas proporcionan curvas de activacion de impacto unico, y probablemente tienen un solo cromosoma, con una probabilidad muy baja de autorregeneracion. El grupo 2 comprende las cepas 12885A, 62A, 77A y 9B, cuyo valor D{sub 10} es del orden de 0,23 Mrad. Los datos de que se dispone sobre los blancos sugieren que esas esporas poseen un solo cromosoma de 900 {mu}m con un factor de autorregeneracion de 13. El grupo 3 comprende las cepas sumamente resistentes 33A, 36A, 40B, 41B y 53B, siendo el correspondiente valor D{sub 10} =0,33 Mrad. Los datos de que se dispone sobre los blancos sugieren que estas esporas poseen dos cromosomas de 900 {mu} cada una, con un factor de autorregeneracion (N) comprendido entre 80 y 90, es decir, N = 13{sup 2}/2. (author) [Russian] Ustanovleno, chto spory iClostridium botulinum. imejut ravnuju ili bol'shuju stojkost' k vozdejstviju ionizirujushhih izluchenij, chem spory drugih netoksichnyh organizmov, portjashhih produkty. Po jetoj prichine standarty mikrobiologicheskoj obrabotki v celjah konservacii produktov s pomoshh'ju izluchenij neizmenno svjazyvalis' so stojkost'ju spor S. botulinum k vozdejstviju izluchenij. Kojefficient radiostojkosti predstavljaet soboj znachenie D{sub 10} , opredeljaemoe kak doza, neobhodimaja dlja odnogo cikla 90% inaktivacii odnoj populjacii, i 12-D bylo proizvol'no opredeleno, kak bezopasnaja doza obluchenija dlja sohranenija

Tertiary volcanic rocks and uranium in the Thomas Range and northern Drum Mountains, Juab County, Utah

Science.gov (United States)

Lindsey, David A.

1982-01-01

(?) Formation was erupted 30-31 m.y. ago from an unknown source. Mineralization probably did not occur during the rhyolitic stage of volcanism. The last stage of volcanism was contemporaneous with basin-and-range faulting and was characterized by explosive eruption of ash and pumice, forming stratified tuff, and by quiet eruption of alkali rhyolite as viscous flows and domes. The first episode of alkali rhyolite volcanism deposited the beryllium tuff and porphyritic rhyolite members of the Spor Mountain Formation 21 m.y. ago. After a period of block faulting, the stratified tuff and alkali rhyolite of the Topaz Mountain Rhyolite were erupted 6-7 m.y. ago along faults and fault intersections. Erosion of Spor Mountain, as well as explosive eruptions through dolomite, provided abundant dolomite detritus to the beryllium tuff member. The alkali rhyolite of both formations is fluorine rich, as is evident from abundant topaz, and contains anomalous amounts of lithophile metals. Alkali rhyolite volcanism was accompanied by lithophile metal mineralization which deposited fluorite, beryllium, and uranium. The structure of the area is dominated by the Thomas caldera and the younger Dugway Valley cauldron, which is nested within the Thomas caldera; the Thomas caldera is surrounded by a rim of Paleozoic rocks at Spor Mountain and Paleozoic to Precambrian rocks in the Drum Mountains. The Joy fault and Dell fault system mark the ring-fracture zone of the Thomas caldera. These structural features began to form about 39 m.y. ago during eruption of the Mt. Laird Tuff and caldera subsidence. The Dugway Valley cauldron sank along a series of steplike normal faults southeast of Topaz Mountain in response to collapse of the magma chamber of the Joy Tuff. Caldera structure was modified by block faulting between 21 and 7 m.y. ago, the time of widespread extensional faulting in the Basin and Range Province. Vents erupted alkali rhyolite 6-7 m.y. ago along basin-and-range faults.

”Nytråkk” i gamle spor. Retrospektivt blikk på hverdagslivet i en småbarnsgruppe.

Directory of Open Access Journals (Sweden)

Nina Winger

2015-03-01

Full Text Available An increasingly number of small children attends day care in Norway. This is a challenging situation that calls for increased research on different aspects of quality of daily life within institutional settings. We need more knowledge about how children experiences daily life in day care. Studying small children`s daily life is however a challenging methodological matter. In this small case study we have conducted retrospective talks with four 4-5 year old children two years after they left day care setting for toddlers. The children were invited back to their former day care to guide the researchers within these locations. Artifacts, toys and furniture seemed to trig their memories as “walking along”. Children also were invited to bring their individual “memory-books” from their first day care period, a book that contained various documentations (photos, drawings and art productions from their toddler period. During data-collection children presented glimpses from former day care period and shared memories from their daily life in day care “back then”. Results from these two retrospective talks with children as well as methodological and ethics aspects related to searching for children`s perspectives is given attention in this article. Stadig flere små barn går i barnehagen i Norge og de fortjener å ha gode hverdager. Det er et krevende og forpliktende anliggende å sikre barnehager av god kvalitet for alle barn. Det trengs mer forskning om ulike aspekter ved hverdagene innenfor pedagogiske institusjoner, ikke minst trenger vi mer kunnskap om hvordan barna opplever hverdagen i barnehagen. Å studere de yngste barnas perspektiver på tilværelsen i barnehagen er forskningsmetodisk og etisk utfordrende. I denne casestudien har vi gjennomført retrospektive samtaler med et mindre utvalg 4-5 åringer to år etter at de gikk på småbarnsavdelingen i barnehage. Barna ble invitert tilbake til sin tidligere småbarnsavdeling og spurt om de ville fortelle oss forskere om hva de husket fra hverdagene her. Vi har anvendt to forskningsmetodiske tilnærmingsmåter. Den første metoden var “walking along”; som innebar at vi vandret gjennom barnehageavdelingen sammen med barna og samtalte med dem om det de valgte å dvele ved. Vi erfarte blant annet at gjenstander, leker og møbler syntes å trigge minnene fra “den gang”. Den andre metoden var samtaler ut fra barnas individuelle "barnehagepermer" (“min barnehagebok” fra sine første år i barnehagen. Disse permene inneholdt ulike dokumentasjoner (bilder, tegninger og andre formingsproduksjoner og barna samtalte med oss om tanker og refleksjoner om innholdet i permene. Erfaringer  fra disse to retrospektive samtaleformene med barna, samt metodiske og etiske aspekter knyttet til å søke etter barns “perspektiver” på dagliglivet i barnehagen, gis oppmerksomhet i denne artikkelen. 

Démocratie d’en-bas ou « démocratie de la rue » ?

DEFF Research Database (Denmark)

Bojsen, Heidi; Boni, Seydou

2017-01-01

for genoprettelsen af retsstaten i Burkina Faso: Hvilke praksis finder sted i bevægelsen? Hvordan kan man definere hvad der er dens succeser eller nederlag i de former for dialog, der finder sted? Den anvendte metode trække både på selv-etnografi (Anderson 2008) og endo-metodologi (Olivier de Sardan) samt den...... bevægelsen blevet en reference og en aktør, som andre interessenter i samfundet og magtspillet henvender sig til. Banégas, Brisset-Foucault og Cutolo (2012) har givet flere eksempler på den voksende folkelige debat, der finder sted på offentlige steder i de afrikanske byrum, debatter og ”læringsrum”, der i...... stigende grad fremstår som alternative og komplementerende platforme til dem, som retsstaten stiller til rådigheder for borgerne gennem sine institutioner. Blandt de spor, som de tre forskere udstikker, stiller artiklen skarpt på folkelige bevægelser såsom Cititizen’s Broom, og den rolle de kan spille...

Test og prøvelser

DEFF Research Database (Denmark)

Test i forskellige former og afskygninger spiller i dag en markant rolle indenfor mange forskellige områder i samfundet. De bliver anvendt til at evaluere og bedømme børn, unge og voksne i forskellige kontekster og med forskellige formål og konsekvenser. I mange tilfælde er der tale om test, hvis...... udfald – direkte eller indirekte - vil kunne få vidtrækkende følger for dem, der testes. Test kan sætte sig spor livet igennem og udsætte de testede for prøvelser, idet de påvirker deres selvopfattelser og udstikker bestemte livsbaner og muligheder. Med afsæt i uddannelsesområdet sætter denne bog fokus...... på test i historisk og nutidig belysning. Den behandler spørgsmål som: Hvordan kom test ind i feltet? Hvilke test anvendes? Hvem tester man? Hvorfor vil man gerne teste? Hvad er de direkte og indirekte sociale konsekvenser af at anvende test? Besvarelsen af disse spørgsmål kan på den ene side bidrage...

Petras tunge

DEFF Research Database (Denmark)

Thurah, Thomas

Fra omslaget: Petras tunge er et essay om noget af den litteratur, der skrives i Europa i disse år. En litteratur, der bliver til, mens eftertidens revisorer fører en ny sandhed til protokols, og mens Europa står midt i et uforudsigeligt opbrud. Bogen handler også om nogle af de europæiske...... hovedstæder, små og store metropoler, hvor historien har sat sig tydelige spor og endnu gør det for magtfuldt og tilsyneladende tvivlløst at bevidne en ny tingenes orden. Litteraturen skrives af bl.a. Martin Amis, Hanif Kureishi, Marcel Beyer, Günter Grass, Milan Kundera, Cees Nooteboom, Aldo Busi, Claudio...... Magris og Imre Kertész. Blandt de europæiske hovedstæder, der fortælles fra, er Berlin, Budapest, London, Bruxelles, Rom og Athen. Petras tunge er en bog om i dag, om europæernes fælles nutid. Men den er også forfatterens forsøg på for sig selv at finde ud af, hvad et menneske har at holde sig til...

İki Spor Kulübünün Hisse Senedi Getirileri Üzerine Bir İnceleme

Directory of Open Access Journals (Sweden)

Deniz PARLAK

2014-12-01

Full Text Available Futbol, günümüz dünyasında bir eğlence unsuru olmaktan çıkarak endüstri kolu haline gelmiştir. Bu sporun Türkiye’deki en önemli temsilcileri olan Fenerbahçe ve Galatasaray’ın arasındaki rekabet hem takım düzeyinde sahada hem de şirket düzeyinde borsada yaşanmaktadır. Çalışmanın amacı bu iki futbol takımının yaptıkları karşılaşmalarda aldıkları sonuçların borsada işlem gören hisselerine ait fiyatlara etkisini incelemektir. Takımların kendi sonuçlarının yanı sıra rakibinin aldığı sonuçların da şirketin hisse senedi getirisine etki edip etmediği araştırılmıştır. Kullanılan üç günlük olay etüdü analizi ile maç sonuçlarına ait beklentilerin maçtan bir gün önce, maç sonuçlarının ise maçtan bir gün sonra kümülatif anormal getiri yarattığını göstermiştir. Kümülatif anormal getirinin rakibin elde ettiği sonuçlara göre farklılık göstermediği saptanmıştır.

S-27: Hentbol Sporcularının Fonksiyonel Hareket Analizi (FMS Sonuçları

Directory of Open Access Journals (Sweden)

Emre Serdar Vayvay

2017-03-01

Full Text Available GİRİŞ-AMAÇ: Uluslararası Olimpiyat Komitesine (IOC göre hentbol, yüksek yaralanma riskine sahip bir olimpik spordur. Bu oyun yüksek tempo, seri hareket değişiklikleri, yere sert inmeyle sonlanan sıçramalar, sporcular arasında sık sık gerçekleşen temas, tekrarlayan diz ve omuz stresi ile karakterizedir. Yaralanmaların önlenmesi her sporda, fizyoterapistlerin birincil sorumluluklarındandır. Bu da ancak detaylı ve bütüncül bir analiz ile mümkün olmaktadır. Fonksiyonel Hareket Analizi (FMS yüksek seviye fonksiyonlarda yer alabilmek için gerekli olan yetenekleri değerlendirmek için tasarlanmıştır. FMS, üç hareket düzleminde de hareket edebilme kabiliyetini değerlendirir. Deep squat, yüksek adımlama, tek çizgide hamle, omuz mobilitesi, aktif düz bacak kaldırma, gövde stabilite şınavı ve rotasyon stabilitesi testlerinden oluşur. Her test için 0-3 arasında bir skor verilir. Düşük skor(<14 ya da asimetrilerin varlığı literatürde yüksek yaralanma riski ile ilişkilendirilmiştir. Birçok spor dalı, meslek ya da aktivite düzeyi için FMS değerlendirme sistemini kullanmış çalışma mevcuttur ancak hentbol sporu için FMS skor normlarını oluşturabilecek bir çalışma bulunmamaktadır.Bu çalışmanın amacı, Hentbol süper ligi ve 1. Lig A takım sporcularında fonksiyonel hareket analizi skorlarını ortaya koymaktır.MATERYAL-METOD: Bu çalışmaya Hentbol Süper Lig ve 1. Ligde oynayan 51 hentbol sporcusu dahil edildi. Sporcuların demografik verileri, spor geçmişleri ile ilişkili bilgiler kaydedildikten sonra hafif ısınma yapmaları istendi. Sonrasında FMS analizleri yapıldı. En fazla üçer tekrar ile fizyoterapistin gözlem sonucu verdiği değerlendirme notu kaydedildi.BULGULAR: Çalışmaya 37 kadın, 14 erkek sporcu dahil edildi. Sporcuların yaş ort. 21± 4,50, Vücut Kitle İndeksleri ort. 22,1 ± 2,18, spor yaşı 10,25± 4,86 olarak bulundu. Mevki dağılımı; Kaleci

The Effect of Some Physical and Chemical Parameters on Regrowth of Aeromonas Bacterium and Heterotrophic Bacteria in Isfahan Drinking Water System

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Sina Dobaradaran

2006-03-01

Full Text Available Aeromonas is one the gram – negative , non spor – formating rod shaping , facultatively anaerobic and opportunistic bactria that can cause systematic infections, leision and diarrhoea in human. Fairly high bactrial population in distribution system is not only of concern because of affecting consumer health but also it makes it difficult to enumerate coliform bacterium indicator. So, the relationships between aeromonas and heterotrophic bacteria growth with pH, temperature, turbidity, free residual cholornie and DO were determined in this study. ADA- V media was used in presumptive stage to count aeromonas bacteria for the first time in Iran on the basis of 1605 EPA (2001 method and used oxidase tests, trehalose fermentation and indol test in confirmative stage. R2A media was used to count HPC bacteria and other factors measured on the basis of standards. The results showed that positive cases of aeromonas bacteria and HPC increase in higher temperature and turbidity and lower pH. In contrast, positive cases of aeromonas bacteria and HPC decrease while free residual cholorine and DO increase. In addition,no positive case of aeromonas was observed in more than 0.2 mg/L concentration of free residual cholorine.

The Factors that Effect to Take Part in Betting

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Alp Çelik

2016-10-01

Full Text Available Because of its’ nature, betting in sports includes factors such as huge revenue, hot money flow, entertainment, thrill, dreams and happening of these dreams. Herewith, these factors pointed out in society effects people’s betting motivation. The purpose of this study was to investigate the factors that effects participators/players to take part in betting. While the universe of the study composed players in Ankara, the sampling group consisted of a legal bookmaker of Spor Toto Teşkilat Bakanlığı and Türkiye Jokey Kulübü that is easily accessible and has a huge rate of revenue. In total, 80 participators (15 students, 20 workers, 20 civil servants, 15 handicraftsmen and 10 self employments participated to study and filled in the questionnaire that expert opinion was taken, validity and reliability were done, According to the results acquired, it was determined that participators take part in betting to enhance the quality of life, bring enjoy and attraction of their life, getting rid of stress and most importantly making money because of some reasons such as economic crisis and financial difficulty in their society, their low income level and their debts.

En god og en dårlig nyhet – om DNAs effekt på oppklaringsprosenten i vinningssaker

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Johanne Yttri Dahl

2016-01-01

Full Text Available The expansion of the Norwegian DNA database in 2008, the so called «DNA reform», was founded on the belief that DNA increases the detection rate of volume crime significantly. We have conducted a study of Norwegian police registers to see what effects DNA actually has on detection rates in volume crime. The good news is that there is little doubt that DNA affects the detection rate. The overall detection rate for the criminal offenses we have studied in our selected police districts in the selected period was 8 %. In cases with a DNA profile the detection rate was 44 %. In cases with hits against the DNA identity register the detection rate was 81%, and in cases with hits against the DNA investigation register the detection rate was 62 %. However, the bad news is the very low proportion of cases where police gather biological samples which result in a DNA-profile and hits. This implies that no matter how high the detection rate is in cases with DNA profile, it will not affect the overall detection rate. Keywords: oppklaringsprosent, etterforskning, vinningslovbrudd, DNA,biologiske spor

Knjižarski oglasi u „Kraljskom Dalmatinu“ i „Zori dalmatinskoj“

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Zoran Velagić

2009-11-01

Full Text Available Cilj je radnje analizirati i kontekstualizirati knjižarsko oglašavanje u zadarskoj periodici iz prve polovice 19. stoljeća. Za analizu su odabrani „Kraljski Dalmatin” , prve novine tiskane i hrvatskim jezikom, i „Zora dalmatinska” , izdavana u jeku preporoda u cijelosti na hrvatskom jeziku. Objavljeni su oglasi popisani, a oni zanimljiviji prikazani su u tekstu. Rezultati istraživanja pokazuju da su već prve novine tiskane hrvatskim jezikom, „Kraljski Dalmatin” , korištene za povremeno i skromno knjižarsko oglašavanje - u svim godištima toga lista objavljeno je 7 oglasa. „Zora dalmatinska” je 30-ak godina kasnije intenzivnije korištena za različite vidove knjižarskog oglašavanja. Kroz ukupno 93 oglasa promovirane su knjige, časopisi, novine, kalendari i almanasi, tiskani su pozivi na pretplatu i podsjetnici pretplatnicima da podmire dugovanja, objavljivani su književni pregledi i sl. Istraživanje je rezultiralo dvama temeljnim zaključcima. Prvo, nakladnici prvih zadarskih novina prepoznali su oglasni potencijal toga medija koji upravo tijekom 19. stoljeća postaje prihvaćeno komunikacijsko sredstvo. Drugo, novinsko je oglašavanje izravno odražavalo suvremene kulturne i političke okolnosti, što je razvidno iz učestalog oglašavanja preporodnih djela u „Zori dalmatinskoj”.

Kulturradikale spor i dansk musik og musikpædagogik: eller hvorfor en musikhistoriker interesserer sig for musikpædagogik

DEFF Research Database (Denmark)

Pedersen, Peder Kaj

2002-01-01

Deals with two trends in danish music and music teaching from the late 1920es and on: a trend inspired from German music (Hindemith a.o.) and teaching of music (Jöde a.o.), in Denmark represented by Finn Høffding a.o., and a trend based on jazz music, conceived and developed by Bernhard Christensen....... Both trends are associated whith a danish cultural leftist movement and concept, "kulturradikalismen", and it is argued, that this concept is relevant and necessary in research dealing with the history of danish music in the middle of the 20th century. The development of the two trends after 1945...... is sketched, and some reflexions in recent theory of music teaching is touched upon....

Mimosoudní řešení sporů (ADR) se zaměřením na mediaci

OpenAIRE

Vykysalá, Nikola

2016-01-01

The purpose of this thesis is to present the main features of out-of-court dispute resolution (alternative dispute resolution) with mediation in civil and commercial issues under Directive No. 2008/52/EC, Act No. 202/2012 Coll., on Mediation and Change Some Laws ("Medition Act"), and Spanish Act No. 5/2012 on Mediation in Civil and Commercial Matters. The thesis purpose is definition of ADR and types of ADR, mediation and its relationship with international law and legislation in the Czech Re...

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)

Preliminary Studies on Irradiation of Some Common Stored-Grain Insects in Pakistan; Etudes preliminaires sur l'irradiation de certaines especes communes d'insectes nuisibles aux cereales engrangees au Pakistan; Predvaritel'noe izuchenie rezul'tatov oblucheniya nekotorykh obychnykh ambarnykh nasekomykh v Pakistane; Estudios preliminares sobre los efectos de la irradiacion en algunas de las plagas insectiles de los silos mas comunes en el Pakistan

Energy Technology Data Exchange (ETDEWEB)

Huque, Heshamul [Department of Plant Protection, Ministry of Food and Agriculture, Karachi (Pakistan)

1963-09-15

reaktsii nekotorykh osnovnykh ambarnykh nasekomykh-vreditelej na obluchenie razlichnymi dozami ot istochnika s Co{sup 60}, lyubezno predostavlennogo Pakistanskoj komissiej po atomnoj ehnergii. Doza'20 000 r vyzyvala 100-protsentnuyu smertnost' vzroslykh osobej Rhizopertha dominica i Tribolium castaneum v techenie 11 sutok. Doza 10 000 r okazalas' ehffektivnoj tol'ko cherez 23 sutok. Vzroslye osobi Sitophilus granarius proyavlyali otnositel'no bol'shuyu chuvstvitel'nost', i pri obluchenii ikh 10 000 r polnaya smertnost' nastupala cherez 7 sutok. Odnako lichinki Trogoderma granarium okazalis' naibolee stojkimi; na bolee nizkie dozy oni vovse ne reagirovali, a 100-protsentnaya smertnost' byla dostignuta tol'ko cherez 26 sutok posle oblucheniya 25 000 r. Maksimal'naya doza 250 000 r privodila k mgnovennoj smerti vo vsekh sluchayakh, no ehta doza slishkom vysoka, i privodit k narusheniyu prorastaemosti semyan. Odnako vvidu togo, chto pitatel'nye svojstva ne stradayut/ ehta doza mokhet byt' ispol'zovana tam, gde zhelatel'no nemedlennoe istreblenie nasekomykh v neprednaznachennykh dlya poseva prodovol'stvennykh zernovykh. Bruchus quadrumaculatus ne vyplansivaetsya pri obluchenii dozoj v 2500 r. V nastoyashchee vremya prodolzhaetsya izuchenie drugikh stadij i dozirovok. (author)

DIFFERENCES IN MORPHOLOGICAL AREA BETWE EN ATHLETS AND NON-ATLETS IN ELEMENTARY SCHOOLS

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Slobodan Stojiljković

2007-05-01

Full Text Available The goal of this re se arch is to de ter mi ne the dif fe ren ces in morp ho lo gi cal cha racte ri stics of pre-te e na ger spor tsmen and pu pils of the sa me age who are not in vol ved in any sports. The te sted par ti ci pants we re 200 pu pils at the age 13 ± 6 months. The gro up of pupils in vol ved in sports clubs con si sted of 100 pu pils and the gro up of pu pils not in vol ved in sport con si ted of 100 pu pils too. The as ses sment of the morp ho lo gi cal cha rac te ri stics was con duc ted using 12 va ria bles. The stu dent T-test sho wed that the re are sta ti sti cally sig ni fi cant dif fe ren ces bet ween the 2 gro ups of pu pils in fa vo ur of tho se in vol ved in sports clubs which is ex pla i ned by the tran sfor ma ti o nal pro ces of tra i ning.

Occurrence model for volcanogenic beryllium deposits: Chapter F in Mineral deposit models for resource assessment

Science.gov (United States)

Foley, Nora K.; Hofstra, Albert H.; Lindsey, David A.; Seal, Robert R.; Jaskula, Brian W.; Piatak, Nadine M.

2012-01-01

Current global and domestic mineral resources of beryllium (Be) for industrial uses are dominated by ores produced from deposits of the volcanogenic Be type. Beryllium deposits of this type can form where hydrothermal fluids interact with fluorine and lithophile-element (uranium, thorium, rubidium, lithium, beryllium, cesium, tantalum, rare earth elements, and tin) enriched volcanic rocks that contain a highly reactive lithic component, such as carbonate clasts. Volcanic and hypabyssal high-silica biotite-bearing topaz rhyolite constitutes the most well-recognized igneous suite associated with such Be deposits. The exemplar setting is an extensional tectonic environment, such as that characterized by the Basin and Range Province, where younger topaz-bearing igneous rock sequences overlie older dolomite, quartzite, shale, and limestone sequences. Mined deposits and related mineralized rocks at Spor Mountain, Utah, make up a unique economic deposit of volcanogenic Be having extensive production and proven and probable reserves. Proven reserves in Utah, as reported by the U.S. Geological Survey National Mineral Information Center, total about 15,900 tons of Be that are present in the mineral bertrandite (Be4Si2O7(OH)2). At the type locality for volcanogenic Be, Spor Mountain, the tuffaceous breccias and stratified tuffs that host the Be ore formed as a result of explosive volcanism that brought carbonate and other lithic fragments to the surface through vent structures that cut the underlying dolomitic Paleozoic sedimentary rock sequences. The tuffaceous sediments and lithic clasts are thought to make up phreatomagmatic base surge deposits. Hydrothermal fluids leached Be from volcanic glass in the tuff and redeposited the Be as bertrandite upon reaction of the hydrothermal fluid with carbonate clasts in lithic-rich sections of tuff. The localization of the deposits in tuff above fluorite-mineralized faults in carbonate rocks, together with isotopic evidence for the

Wall-rock alteration and uranium mineralization in parts of Thomas Range Mining District, San Juan County, Utah, and its significance in mineral exploration

International Nuclear Information System (INIS)

Mohammad, H.

1985-01-01

Several important uranium deposits associated with fluorspar and beryllium are located in parts of Thomas Range area. the mineralization is found in dolomites and dolomitic limestones of Paleozoic age and sandstones, tuffs, and rhyolites belonging to the Tertiary Spor Mountain and Topaz Mountain Formations. The pipes, veins, and nodules of fluorspar are replaced by uranium. Veins and disseminations of radioactive fluorspar and opal and overgrowths of secondary minerals are found in rhyolites, tuffs, carbonate rocks, and breccias. The radioactivity in sandstones and conglomerates emanates from weeksite, beta-uranophane, zircon, gummite, and zircon. It also occurs as highly oxidized rare aphanitic grains disseminated in a few ore deposits. The results of the present investigations may influence the initiation of future exploration programs in the Thomas Range mining district. Hydrothermal fluids of deep-seated magmatic origin rich in U, V, Th, Be, and F reacted with the country rocks. The nature and sequence of wall-rock alteration and its paragenetic relationship with the ores have been determined. The mineralization is confined to the altered zones. The ore bodies in the sedimentary rocks and the breccias are located in the fault zones. More than 1000 faults are present in the area, greatly complicating mineral prospecting. The wall-rock alteration is very conspicuous and can be used as a valuable tool in mineral exploration

A RESEARCH ON EXAMINATION OF SWIMMER CLOTHING FOR INCREASING SPORTSMAN PERFORMANCE

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Hacer ÖLÇER

2014-07-01

Full Text Available The purpose of this research is to present the problems of swimmers about swimming clothing in trainings or competitions and their expectations from swimming clothing for increasing their performan ce . Descriptive method was used in the research . Survey was developed as a data collection tool on clothing comfort parameters and functional design p roperties that swimming clothing should have . The universe of the r esearch is composed of male and female swimmers interested in swimming sport in T urkey, in the province of Çorum. And the sample is composed of 50 swimmers who participate in the research v oluntarily among the members of Olympic Indoor Swimming Pool serving in Çorum Provincial Directorate of Youth Services and Spor ts . The findings were analyzed in Statistics Package Program in Social Sciences (SPSS. As a result of the r esearch ; it was determined that the problems experienced with the clothing were quick deform ation, restriction of movements, and the fact that fabric texture and sewing properties discomfort the skin and expectations from clothing were durability, ease of movement , to accord with the body and easy maintenance . It is considered that r esearch results shall be a guide for research and development activities to be performed about clothing comfort on both academic and sector basis for increasing sportive performan ce in running sport and protection of sportsmen health .

S-08: Kronik Pelvik Ağrı Sebebi Olarak İliopsoas Sendromu: Bir Kadın Futbolcuda Tanıda Gecikmenin ve Başarılı Tedavisinin Tartışılması

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Şeyhmus Kaplan

2017-03-01

Full Text Available AMAÇ Bu olgudaki amacımız bir kadın futbolcuda kronik pelvik ağrı sebebi olarak tespit edilen, egzersiz ve kinesiotape uygulaması ile başarılı tedavi edilen iliopsoas sendromu olgusunu sunmak ve tanıdaki gecikmenin sebeplerini tartışmaktır.OLGUSon 1 yıldır sağ kasık bölgesinde ağrı şikayeti olan 26 yaşında, 8 yıldır aktif futbol sporu yapan bayan hasta, çeşitli kliniklerde üreter taşı, inguinal herni, non-spesifik alt bel ağrısı ve osteitis pubis ön tanıları ile değerlendirilmiş. Yapılan muayene, laboratuvar ve görüntüleme incelemelerinde ağrıyı açıklayacak bir sorun tespit edilmemiş. Son olarak jinekoloji kliniğinde kronik pelvik ağrı tanısı konarak, analjezik ve oral kontraseptif tedavi denenmiş. Verilen tedaviye cevap vermeyen hasta, spor hekimliği bölümüne refere edilmiş. Hastada tek taraflı (sağ kasık ağrısı, uzun süre oturduktan sonra kalktığında dik olabilmede zorluk ve bazen bu şikayetlerine eklenen alt bel ağrısı yakınmaları vardı. Bilateral alt ekstemite kuvvet muayenesi, tendon refleksleri normal olarak tespit edildi. Muayene bulguları: sağ iliopsoas kas trasesinde insersiyoya yakın bölgede derin palpasyonda hassasiyet, belde lordoz artışı, sol pelvik antero-superior tilt, sol kalçada piriformis trasesinde hassasiyet, sağda daha belirgin olmak üzere bilateral pozitif Thomas testi, sağ kalçada tüm yönlere doğru eklem hareket açıklığının son derecelerinde azalma. Kan, idrar, konvansiyonel grafi, USG ve MR incelemelerinde hastanın şikayetlerini açıklayacak patolojik bir sorun tespit edilemedi. İliopsoas sendromu tanısı konuldu. Tedavide günlük germe egzersizleri önerildi ve beşer gün aralarla kinesiotape uygulaması yapıldı (Resim 1. Ağrı düzeyi Vizüel Analog Skala (VAS skoru ile değerlendirildi. Dördüncü seanstan sonra ağrının tamamen ortadan kalkması ile tedavi sonlandırıldı. Tedavinin bitiminden üç ay sonra

Long tracks Energy: Views on ten years of research on green energy; Lange spor Energi: Blikk paa ti aar med forskning paa miljoevennlig energi

Energy Technology Data Exchange (ETDEWEB)

Coldevin, Grete Haakonsen

2011-07-01

RENERGI is the The Research Council of Norway's strategic research program aimed the energy sector. The program has given and gives us central knowledge about technologies, solutions, policies and instruments that could help solve the energy and climate challenges and support the Norwegian business opportunities for value creation.The program period extending from 2004 to 2013. This booklet presents an analysis Research shows the development of the research program has funded from the beginning to the present. The analysis of RENERGI, we call it 'Long Track' follows selected projects and portfolios of projects through more year to track the effectiveness Research Council funding had. And what are the key findings? Experiences from RENERGI and from the precursors to the program, show that increased funding for research in this field triggers innovative research and innovation.The program means adapted to industry characteristics: Energy requires strong communities, and the program has helped to build up such over time. These strong communities nest ground for the establishment of Centres for environmentally friendly energy (FME), the newest addition by the Research Council of instruments in this area. Analysis of research over time are important because they show effect of investing public funds in research. When initiate research, there is great expectations to short-term results. We know it can take time before results come. What gives returns today often based on research many years. Research using these analyzes as part of our knowledge base for future priorities and in our dialogue with research funding ministries. Research teams can use the results to summarize own operations over time. Businesses can benefit greatly Long-term analysis showing that energy research has opened for business start-ups and established companies given new products they can create value from. 'Long Track' emphasizes the importance of thinking long-term: When a research starts up, it is not Obviously what effects it will produce. Often it can take a long time before the research yields results, and perhaps other areas than originally thought. This analysis shows several good examples of this. There are many more RENERGI projects than this analysis covers that have given important results. In sum, confirming our analysis and some broader portfolio analysis RENERGI has contributed significantly to develop solutions for future energy systems. This we take with us in the planning of further research after RENERGI expires.(Author)

Long tracks Energy: Views on ten years of research on green energy; Lange spor Energi: Blikk paa ti aar med forskning paa miljoevennlig energi

Energy Technology Data Exchange (ETDEWEB)

Coldevin, Grete Haakonsen

2011-07-01

RENERGI is the The Research Council of Norway's strategic research program aimed the energy sector. The program has given and gives us central knowledge about technologies, solutions, policies and instruments that could help solve the energy and climate challenges and support the Norwegian business opportunities for value creation.The program period extending from 2004 to 2013. This booklet presents an analysis Research shows the development of the research program has funded from the beginning to the present. The analysis of RENERGI, we call it 'Long Track' follows selected projects and portfolios of projects through more year to track the effectiveness Research Council funding had. And what are the key findings? Experiences from RENERGI and from the precursors to the program, show that increased funding for research in this field triggers innovative research and innovation.The program means adapted to industry characteristics: Energy requires strong communities, and the program has helped to build up such over time. These strong communities nest ground for the establishment of Centres for environmentally friendly energy (FME), the newest addition by the Research Council of instruments in this area. Analysis of research over time are important because they show effect of investing public funds in research. When initiate research, there is great expectations to short-term results. We know it can take time before results come. What gives returns today often based on research many years. Research using these analyzes as part of our knowledge base for future priorities and in our dialogue with research funding ministries. Research teams can use the results to summarize own operations over time. Businesses can benefit greatly Long-term analysis showing that energy research has opened for business start-ups and established companies given new products they can create value from. 'Long Track' emphasizes the importance of thinking long-term: When a research starts up, it is not Obviously what effects it will produce. Often it can take a long time before the research yields results, and perhaps other areas than originally thought. This analysis shows several good examples of this. There are many more RENERGI projects than this analysis covers that have given important results. In sum, confirming our analysis and some broader portfolio analysis RENERGI has contributed significantly to develop solutions for future energy systems. This we take with us in the planning of further research after RENERGI expires.(Author)

Use of electrical imaging and distributed temperature sensing methods to characterize surface water–groundwater exchange regulating uranium transport at the Hanford 300 Area, Washington

Science.gov (United States)

Slater, Lee D.; Ntarlagiannis, Dimitrios; Day-Lewis, Frederick D.; Mwakanyamale, Kisa; Versteeg, Roelof J.; Ward, Andy; Strickland, Christopher; Johnson, Carole D.; Lane, John W.

2010-01-01

We explored the use of continuous waterborne electrical imaging (CWEI), in conjunction with fiber‐optic distributed temperature sensor (FO‐DTS) monitoring, to improve the conceptual model for uranium transport within the Columbia River corridor at the Hanford 300 Area, Washington. We first inverted resistivity and induced polarization CWEI data sets for distributions of electrical resistivity and polarizability, from which the spatial complexity of the primary hydrogeologic units was reconstructed. Variations in the depth to the interface between the overlying coarse‐grained, high‐permeability Hanford Formation and the underlying finer‐grained, less permeable Ringold Formation, an important contact that limits vertical migration of contaminants, were resolved along ∼3 km of the river corridor centered on the 300 Area. Polarizability images were translated into lithologic images using established relationships between polarizability and surface area normalized to pore volume (Spor). The FO‐DTS data recorded along 1.5 km of cable with a 1 m spatial resolution and 5 min sampling interval revealed subreaches showing (1) temperature anomalies (relatively warm in winter and cool in summer) and (2) a strong correlation between temperature and river stage (negative in winter and positive in summer), both indicative of reaches of enhanced surface water–groundwater exchange. The FO‐DTS data sets confirm the hydrologic significance of the variability identified in the CWEI and reveal a pattern of highly focused exchange, concentrated at springs where the Hanford Formation is thickest. Our findings illustrate how the combination of CWEI and FO‐DTS technologies can characterize surface water–groundwater exchange in a complex, coupled river‐aquifer system.

TÜKETİCİLERİN MARKALARIN LOGO YA DA AMBLEMLERİNE KARŞI TUTUMLARININ MARKA TERCİHLERİ ÜZERİNDEKİ ETKİSİ

Directory of Open Access Journals (Sweden)

Sevda DENEÇLİ

2015-09-01

Full Text Available Özet Tüketicilerin markaların logo ya da amblemlerine karşı tutumlarının marka tercihleri üzerindeki etkisinin belirlenmeye çalışıldığı bu araştırma kolayda örnekleme yöntemiyle 127 kişi üzerinde gerçekleş- tirilmiştir. Araştırma kapsamında Türkiye pazarında en popüler olan, biri logo biri de amblem kullanan uluslararası iki spor giyim markası ele alınmıştır. Araştırmada tüketicilerin logo ve amblem kullanan mar- kaların logo ve amblemlerine ilişkin tutumları ile marka tercihleri arasındaki ilişkiyi belirlemek amacıyla korelasyon analizi; tüketicilerin markaların logo ve amblemlerine karşı tutumlarının marka tercihleri üzerindeki etkisini belirlemek amacıyla ise çoklu regresyon analizi kullanılmıştır. Bu şekilde markanın  logo ya da amblem kullanımının marka tercihi üzerindeki etkisi; logoyu kullanan markayı kullanan ya da kullanmayan bireyler ve amblem kullanan markayı kullanan ya da kullanmayan bireyler dikkate alınarak karşılaştırmalı olarak analiz edilmiştir.

Photoscanning; Photo-exploration; Fotoissledovanie; Fotoexploracion

Energy Technology Data Exchange (ETDEWEB)

Bender, M A; Blau, M [Department of Radioisotope Research, Roswell Park Memorial Institute, Buffalo, NY (United States)

1959-07-01

contraste necesario para poder observar pequenos cambios en el indice de recuento. Existe la posibilidad de graduar el contraste y la ganancia del sistema de registro con arreglo a las necesidades clinicas. Un colimador de enfoque y un cristal de yoduro sodico de gran tamano proporcionan una elevada eficiencia, una resolucion satisfactoria y una sensibilidad adecuada en profundidad. Este instrumenta se ha utilizado con exito para la deteccion de tumores humanos en el cerebro, el higado y la tiroides. (author) [Russian] Issledovanie metodom izotopov pozvolyaet bez nane geniya travmy ustanavlivat' mestonakhozhdenie nekotorykh vidov opukholej v organizme cheloveka. Dlya polucheniya udovletvoritel'nogo graficheskogo izobrazheniya detektor dolzhen byt' v sostoyanii opredelyat' nebol'shie razlichiya mezhdu soderzhanii izotopov v zatronutoj i okruzhayushchej tkani, a takzhe registrirovat' ehti dannye v legko ponyatnoj forme. Krome togo, on dolzhen byt' dostatochno chuvstvitel'nym, chtoby mozhno bylo ego prisposoblyat' k razlichnym vstrechayushchimsya na praktike urovnyam radioaktivnosti i sushchestvuyushchim sootnosheniyam mezhdu bol'noj i okruzhayushchej tkan'yu. Tak kak izsledovanie s pomoshch'yu radioizotopov yavlyaetsya v osnovnom registratsionny m metodom diagnoza, obshchij koehffitsient ehffektivnosti schetchika dolzhen byt' dostatochno vysokim, chtoby vvodimaya radioaktivnost' ne prevyshala po vozmozhnosti minimal'nogo urovnya. Dlya ehtoj tseli byl skonstruirovan sootvetstvuyushchi j detektor. Sistema zapisi, osnovannaya na tom, chto napryazhenie v znachitel'noj mere otrazhaetsya na intensivnosti sveta, proizvodimogo vol'framovoj nit'yu, obespechivaet tot vysokij kontrast, kotoryj neobkhodim dlya ustanovleniya malejshikh izmenenij v skorosti scheta. EHtot kontrast i moshchnost' zapisyvayushchej sistemy mozhno regulirovat' i ehtim udovletvoryat' klinicheskim trebovaniyam. Fokusiruyushchi j kollimator i bol'shoj kristall iodistogo natriya (Nal) obespechivayut vysokuyu

On some mechanisms of the effect of thermal prehistory on the behavior of silicon parameters under irradiation. O nekotorykh mekhanizmakh vliyaniya teplovoj predystorii na povedenie parametrov kremniya pod oblucheniem

Energy Technology Data Exchange (ETDEWEB)

Nejmash, V B; Sagan, T R; Tsmots' , V M; Shakhovtsov, V I; Shindich, V L [AN Ukrainskoj SSR, Kiev (Ukraine). Inst. Fiziki

1991-11-01

The effect of preliminary thermal treatment (TT) in 400-1200 degC temperature range on the behavior of Si monocrystal parameters under subsequent [gamma]-, electron and neutron irradiation is investigated. Five mechanisms of Si thermal prehistory effect on its properties are proposed: (1) decomposition of solid solutions of impurities interacting with radiation defects (RD); (2) formation of electrically active thermal defects (TD) in concentrations wich are sufficient for a significant alteration of RD charged state; (3) origination of TD, which can efficiency as aresult of the redistribution of impurities under thermal treatment; (5) formation of clusters of electrically active TD, resulting in the disturbance of electric homogeneity of Si crystal.

Uranium-Based Cermet Alloys; Cermets a base d'uranium; Metallokeramicheskie splavy na osnove urana; Cermets a base de uranio

Energy Technology Data Exchange (ETDEWEB)

Ivanov, V. E.; Zelenskij, V. F.; Voloshchuk, A. I.; Grishok, V. N. [Fiziko-Tekhnicheskij Institut an USSR, Khar' kov, SSSR (Russian Federation)

1963-11-15

The paper describes certain features of dispersion-hardened uranium-based cermets. As possible hardening materials, consideration was given to UO{sub 2}, UC, Al{sub 2}O{sub 3}, MgO and UBe{sub 13}. Data were obtained on the behaviour of uranium alloys containing the above-mentioned admixtures during creep tests, short-term strength tests and cyclic thermal treatment. The corrosion resistance o f UBe{sub 13}-based uranium alloys was also studied. )author) [French] Les auteurs decrivent certaines proprietes de cermets a base d'uranium, dont la resistance a ete accrue a l'aide de particules dispersees. Les materiaux utilises a cette fin sont notamment: UO{sub 2}, UC, Al{sub 2}O{sub 3}, MgO et UBe{sub 13}. Les auteurs indiquent les donnees obtenues sur le comportement des cermets a l'uranium; durant les essais de fluage, les essais de resistance a court terme et le traitement thermique cyclique, en mentionnant les substances ajoutees. Ils etudient enfin la resistance a la corrosion des cermets d'uranium et UBe{sub 13}. (author) [Spanish] Los autores describen algunas propiedades de los cermets a base de uranio, reforzados por particulas de diversos compuestos en dispersion. En calidad de posibles materiales de refuerzo, ensayaron el UO{sub 2}, el UC, el Al{sub 2}O{sub 3}, el MgO y el UBe{sub 13}. Obtuvieron datos sobre el comportamiento de esas aleaciones en ensayos de fluencia, ensayoe rapidos de resistencia y tratamiento termico ciclico. Por ultimo, estudiaron la resistencia a la corrosion de las aleaciones de uranio a base de UBe{sub 13}. (author) [Russian] Daetsya opisanie nekotorykh svojstv metallokeramicheskikh splavov urana, uprochnennykh dispersionnymi chastitsami. V kachestve vozmozhnykh uprochnyayushchikh materialov izuchalis' UO{sub 2}, UC, Al{sub 2}O{sub 3} , MgO i UBe{sub 13}. Polucheny dannye o povedenii splavov urana s ukazannymi primesyami pri kripovykh ispytaniyakh, pri kratkovremennykh prochnostnykh ispytaniyakh i pri tsiklicheskoj termoobrabotke

Experimental studies of some of the physical features of beryllium-moderated intermediate reactors; Etude experimentale de quelques particularites physiques des reacteurs a neutrons intermediaires, ralentis au beryllium; Ehksperimental'ny e issledovaniya nekotorykh fizicheskikh osobennostej promezhutochnykh reaktorov s berillievym zamedlitelem; Estudios experimentales de algunas caracteristicas fisicas de los reactores intermedios moderados con berilio

Energy Technology Data Exchange (ETDEWEB)

Lejpunskij, A I; Kuznetsov, V A; Artyukhov, G Ya; Mogil' ner, A I; Prokhorov, Yu A; Steklovski, V M; Chernov, L A [Akademiya Nauk, Moskva, Union of Soviet Socialist Republics (Russian Federation)

1962-03-15

la evaluacion de la eficacia de los cilindros compensadores giratorios distribuidos en el limite entre el cuerpo y el reflector. (author) [Russian] Doklad posvyashchen obzoru nekotorykh ehksperimen-tal'nykh rezul'tatov, poluchennykh na stende PF-4, prednaznachennom dlya detal'nogo issledovaniya fizicheskikh osobennostej reaktorov, rabotayushchikh na nejtronakh promezhutochnykh ehnergij. Aktivnye zony i otrazhateli razlichnykh kriticheskikh sborok predstavlyali soboj plotnuyu upakovku stal'nykh ili alyuminievykh trub, v kotorykh pomeshchalis' diski iz razlichnykh materialov. Kombinatsiya diskov urana (90%-nogo obogashcheniya) i zamedlyayushchikh materialov v razlichnoj proportsii, a takzhe vvedenie v otrazhatel' zamedlyayushchikh sloev razlichnoj tolshchiny, pozvolilo menyat' spektr nejtronov, proizvodyashchikh delenie, v ochen' shirokikh predelakh. V doklade privedeno opisanie stenda i ego otdel'nykh uzlov. Analiziruetsya sravnitel'naya ehffektivnost' vnutrennego i vneshnego zamedleniya dlya reaktorov s ochen'malym otnosheniem yader zamedlitelya i urana v aktivnoj zone. Ehksperimenty pokazyvayut, chto dazhe v sluchae tolstykh zamedlyayushchikh otrazhatelej maloe razbavlenie urana zamedlitelem (otnoshenie yader berilliya i urana-235 {partial_derivative}Be/{partial_derivative}U{sup 235}{approx_equal}1) privodit k vozrastaniyu kriticheskoj massy. Znachitel'noe mesto v doklade udeleno analizu geterogennykh ehffektov v promezhutochnykh reaktorakh. Pokazano, chto dlya reaktora s {partial_derivative}Be/{partial_derivative}U{sup 235}= 30+40, vysokoobogashchenny j uran v razlichnykh tolshchinakh ot 0,023 g/sm{sup 2} do 32 g/sm{sup 2} okazyvaet odinakovoe vliyanie na reaktiv-nost' sistemy. Analiziruyutsya prichiny, privodyashchie k kompensatsii ehffekta ehkranirovki nejtronnogo potoka tolstymi sloyami urana. V doklade privoditsya interesnyj fakt vozrastaniya ehffektivnosti urana vblizi po- gloshchayushchikh sterzhnej, ehksperimental'n o obnaruzhennyj v sbor kes {partial

Uranium mineralization in fluorine-enriched volcanic rocks

Energy Technology Data Exchange (ETDEWEB)

Burt, D.M.; Sheridan, M.F.; Bikun, J.; Christiansen, E.; Correa, B.; Murphy, B.; Self, S.

1980-09-01

Several uranium and other lithophile element deposits are located within or adjacent to small middle to late Cenozoic, fluorine-rich rhyolitic dome complexes. Examples studied include Spor Mountain, Utah (Be-U-F), the Honeycomb Hills, Utah (Be-U), the Wah Wah Mountains, Utah (U-F), and the Black Range-Sierra Cuchillo, New Mexico (Sn-Be-W-F). The formation of these and similar deposits begins with the emplacement of a rhyolitic magma, enriched in lithophile metals and complexing fluorine, that rises to a shallow crustal level, where its roof zone may become further enriched in volatiles and the ore elements. During initial explosive volcanic activity, aprons of lithicrich tuffs are erupted around the vents. These early pyroclastic deposits commonly host the mineralization, due to their initial enrichment in the lithophile elements, their permeability, and the reactivity of their foreign lithic inclusions (particularly carbonate rocks). The pyroclastics are capped and preserved by thick topaz rhyolite domes and flows that can serve as a source of heat and of additional quantities of ore elements. Devitrification, vapor-phase crystallization, or fumarolic alteration may free the ore elements from the glassy matrix and place them in a form readily leached by percolating meteoric waters. Heat from the rhyolitic sheets drives such waters through the system, generally into and up the vents and out through the early tuffs. Secondary alteration zones (K-feldspar, sericite, silica, clays, fluorite, carbonate, and zeolites) and economic mineral concentrations may form in response to this low temperature (less than 200 C) circulation. After cooling, meteoric water continues to migrate through the system, modifying the distribution and concentration of the ore elements (especially uranium).

Uranium mineralization in fluorine-enriched volcanic rocks

International Nuclear Information System (INIS)

Burt, D.M.; Sheridan, M.F.; Bikun, J.; Christiansen, E.; Correa, B.; Murphy, B.; Self, S.

1980-09-01

Several uranium and other lithophile element deposits are located within or adjacent to small middle to late Cenozoic, fluorine-rich rhyolitic dome complexes. Examples studied include Spor Mountain, Utah (Be-U-F), the Honeycomb Hills, Utah (Be-U), the Wah Wah Mountains, Utah (U-F), and the Black Range-Sierra Cuchillo, New Mexico (Sn-Be-W-F). The formation of these and similar deposits begins with the emplacement of a rhyolitic magma, enriched in lithophile metals and complexing fluorine, that rises to a shallow crustal level, where its roof zone may become further enriched in volatiles and the ore elements. During initial explosive volcanic activity, aprons of lithicrich tuffs are erupted around the vents. These early pyroclastic deposits commonly host the mineralization, due to their initial enrichment in the lithophile elements, their permeability, and the reactivity of their foreign lithic inclusions (particularly carbonate rocks). The pyroclastics are capped and preserved by thick topaz rhyolite domes and flows that can serve as a source of heat and of additional quantities of ore elements. Devitrification, vapor-phase crystallization, or fumarolic alteration may free the ore elements from the glassy matrix and place them in a form readily leached by percolating meteoric waters. Heat from the rhyolitic sheets drives such waters through the system, generally into and up the vents and out through the early tuffs. Secondary alteration zones (K-feldspar, sericite, silica, clays, fluorite, carbonate, and zeolites) and economic mineral concentrations may form in response to this low temperature (less than 200 C) circulation. After cooling, meteoric water continues to migrate through the system, modifying the distribution and concentration of the ore elements

P-19: Rektus Femoris'te Heterotopik Ossifikasyon

Directory of Open Access Journals (Sweden)

Bilgehan Öztop

2017-03-01

Full Text Available GİRİŞ: Myositis Ossifikans(MO iskelet kası,ciltaltı dokusu ve tendona yakın fibröz dokularda oluşan benign heterotopik kemik formasyonudur. Heterotopik ossifikasyon(HO nörojenik heterotopik ossifikasyon, travmatik heterotopik ossifikasyon, miyozitis ossifikans progresiva olarak genelde üç grupta incelenir[1].Travmatik form özellikle sporcularda posterior uyluk kaslarında ve jokeylerde adduktor longus tendonunun osifikasyonuna bağlı olarak ‘binici kemiği’ şeklinde ortaya çıkabilir.Heterotopik ossifikasyon genellikle travmadan 1-4 ay sonra görülürken,birkaç yıl sonra da gelişebilir[2].Muayenede ağrı,eklem sertliği ile birlikte;nörovasküler yapılara kompresyon gözlenmektedir.Semptomlar sıklıkla lezyonun matürleşmesinden sonra azalır.Tanıda görüntüleme yöntemleri;özellikle malignensilerden ayırmak için yardımcıdır.Tipik patern sınırları belirgin,periferi yüksek dansiteli,merkezi düşük dansiteli kitledir.HO tedavi seçenekleri arasında eklem hareket açıklığının korunması,ilaç tedavisi,radyoterapi ve cerrahi eksizyonu yer almaktadır.Fizyoterapi,asetik asit iyontoforez,magnezyum ve etidronate disodyumun tedavide efektif olduğu bildirilmiştir[3].Bifosfonatlar ve non-steroid antienflamatuar ilaçlar (özellikle indometazinerken dönem tedavide ve profilakside fayda göstermektedir.Cerrahi rezeksiyon maturasyon tamamlandıktan sonra uygulanabilir.Bu hastalık sıklıkla travmaya bağlı diğer hastalıklarla karışabilmektedir.Biz de bir hastamızla bu konuyu sizlere tekrar hatırlatmak istedik.METOD-BULGULAR: Otuzüç yaşında erkek hasta spor hekimliği polikliniğine 3 aydır geçmeyen kalça ağrısı ile başvurdu.Öyküsünde haftada 3 gün 1 saat bisiklete bindiğini ve haftada 2 gün futbol maçı yaptığını belirten hasta,4 ay önce bisikletten düştüğünü belirtti.Dış merkezde osteitis pubis tanısıyla fizik tedavi gören hastanın,muayenesinde iç rotasyon k

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)

Endüstriyel Futbolla Birlikte Değişen Haber Pratikleri: Eskişehirspor Örneği

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Banu DAĞTAŞ

2015-08-01

Full Text Available Bu çalışmada, 2008 yılında Türkiye Süper Ligi’ne çıkan Eskişehirspor’la ilgili haber yapan spor muhabirlerinin, değişen haber pratikleri araştırılmıştır. Eskişehirspor’un Süper Lig’e çıkışı, endüstriyel futbolun dinamikleriyle birlikte kavramsallaştırılmış ve bu nedenle, endüstriyel futbolla ilgili literatür incelenmiştir. Çalışmanın amacı doğrultusunda; hem Eskişehirspor’un Süper Lig öncesi dönemindede, hem de Süper Lig sonrası döneminde muhabirlik yapan, altı gazeteciyle, yarı-yapılandırılmış derinlemesine görüşme yapılmıştır. Yapılan görüşmelerin doğrultusunda elde edilen veriler şu temalar altında toplanmıştır: Kulüple ilişkiler; mesleki koşullar (maddi-manevi koşullar, maç takibi koşulları, meslek-içi ilişkiler; haber içerikleri; haber kaynakları ve kulüp taraftarlığı. Kulüp taraftarlığı dışındaki tüm temalarla ilgili haber üretme pratiklerinin, Süper Lig öncesi ve Süper Lig sonrası dönemde önemli değişiklikler geçirdiği saptanmıştır.

Å LESE MEDIETEKSTER PÅ IPADEN. Observasjoner av en medievant fireårings bruk av iPad i hjemmet

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Henriette Jæger

2016-06-01

Full Text Available Artikkelen tar utgangspunkt i tre observasjoner av en gutt på fire år som bruker iPad på fritiden. Den søker å synliggjøre de strategiene dette barnet velger for å skaffe seg tilgang til ulike medietekster, hvordan han leser og tolker dem, og den undersøker eventuelle spor av kritisk refleksjon hos barnet over disse tekstene. Teoretisk sett hviler den på en forståelse av mediekompetanse som en parallell prosess til utvikling av lese- og skrivekyndighet (literacy, og medieopplevelsene omtales som viktige møter med tekst. Artikkelen undersøker hvordan å lese medietekster kan legge et grunnlag for å utvikle en utvidet tekstkompetanse eller mediekompetanse. Konklusjonen legger vekt på motivasjon og lekenhet som barns primære inngang til medietekstene og som et grunnlag for å utvikle mediekompetanse (media literacy. The article is based on three observations of a four-year-old boy who uses the iPad in his spare time. It demonstrates the strategies that this boy applies to gain access to various media texts, and how he reads and interprets them. It also seeks to examine traces of critical reflection that he may demonstrate in relation to these texts. Theoretically, it rests on an understanding of media literacy as a parallel process to the development of literacy, and it seeks to demonstrate how reading media texts can create an important starting point for the development of media literacy. The Kindergarten practitioner’s role and opportunities to develop children's media literacy within a kindergarten context is a focus towards the end of the article. In conclusion, I argue that motivation and playfulness are important approaches to media texts and create an important foundation for the development of media literacy

Electrical Spectroscopy of Permo-Triassic Sandstone From the United Kingdom

Science.gov (United States)

Scott, J.; Barker, R.

2003-12-01

Electrical spectroscopy measurements in the range of mHz to kHz have been made on the dominantly red Permo-Triassic sandstone from the United Kingdom. Samples have been selected from borehole cores from all of the main outcrop areas of sandstone and represent a wide variety of lithologies. This sandstone is an important aquifer for several major cities including Manchester and Birmingham. The samples have been fully saturated with sodium chloride brines and a synthetic groundwater solution that is higher in calcium and magnesium ions than sodium and which closely matches the cation concentrations of the groundwater at Birmingham. Electrical measurements were made using a four-electrode arrangement of silver-silver chloride electrodes. Most of the electrical spectra show a clear, slightly asymmetric, electrical relaxation phenomenon with relaxation peaks in the range of 0.001 Hz to 20 Hz. These relaxation phenomena can be fitted very well by a generalised Cole-Cole model. The relaxation time from this model is found to correlate closely with the dominant pore-throat size from mercury injection. Normalising the chargeability, Cole-Cole m parameter, by the conductivity gives a polarisation magnitude which correlates well with the pore surface to volume ratio (SPOR) for sandstone samples with an even distribution of surface coating clays. The information obtained from the electrical spectra is very useful. The pore-throat size is important in controlling the permeability and in particular the flow of non-aqueous phase fluids. The pore surface area has links to the sorbtion properties of the rock, which are important in estimating contaminant transport. The electrical spectra also provide a useful fingerprint of individual lithologies which could be used for correlation between boreholes or outcrops.

GIDA ENDÜSTRİSİNDE YÜKSEK HİDROSTATİK BASINÇ UYGULAMALARI

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Yahya TÜLEK

2006-03-01

Full Text Available Isıl işlem teknikleri, gıda maddelerinin mikrobiyolojik ve biyokimyasal değişimlerden korunması ve raf ömrünün uzatılması amacıyla günümüzde yaygın olarak kullanılmaktadır. Isıl işlem teknikleri, mikroorganizmaların hem vejetatif hem de spor formlarının tamamını yok edebildiği için, uygulandıkları gıdanın mikrobiyolojik olarak güvenilir bir gıda olmasını sağlamaktadır. Bununla birlikte, ısıl işlem uygulamalarının, kullanılan sıcaklık seviyesine bağlı olarak, gıda maddesinin beslenme değerinde ve duyusal kalite özelliklerinde azalmaya ve toksik bileşenlerin oluşmasına neden olduğu bilinmektedir. Beslenme değerinde ve duyusal özelliklerinde en az kayıpla üretilen, daha taze gıda ürünlerine artan müşteri talebinin karşılanması ve kabul edilebilir bir raf ömrü elde edilebilmesi için yapılan çalışmalar, son on yıllık dönemde, özellikle ısıl işlem içermeyen (non-thermal inaktivasyon teknikleri üzerine yoğunlaşmıştır. Bu makalede, ısıl işlem içermeyen tekniklerden birisi olan yüksek hidrostatik basınç tekniğinin gıdalar için uygulamaları ve etkileri ayrıntılı olarak irdelenmiştir.

El tenis: Entre la modernidad y la postmodernidad = Tennis, between modernity and post-modernity

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Guillem Turró i Ortega

2013-04-01

Full Text Available En el presente artículo los autores ensayan una aproximación a la realidad tenística en tanto que metáfora de la modernidad y la postmodernidad (también llamada hipermodernidad. Sabido es que los orígenes del tenis se remontan a una época premoderna, cuando se conocía como jeu de paume, práctica de gran éxito durante el Antiguo Régimen. Se sostiene que este deporte permite reflexionar en torno a un conjunto de valores y características de nuestras sociedades actuales. La moda, la tecnología, la diversidad sexual y étnica, el espectáculo, la publicidad, la aceleración, el erotismo, el éxito y el fracaso o el capitalismo globalizado aparecen como componentes imprescindibles para poder captar el fenómeno tenístico en toda su amplitud. Igualmente, la historia del tenis puede servir para ilustrar como a través del deporte se puede comprender la evolución socio-cultural de la civilización occidental. --------------------------------------------In this paper, the authors investigate an approach to the practice of tennis as a metaphor of modernity and post-modernity (also called hypermodernity. It is a wellknown fact that the origins of tennis go back to pre-modern times, when it was known as jeu de paume and widely practiced during the Ancient Regime. The autors, argue that this sport enables reflection on a series of values and features of modern society. Fashion, technology, sexual and ethnic diversity, spectacle, advertising, acceleration, eroticism, success and failure or globalised capitalism emerge as indispensable elements for understanding the tennis phenomenon in all its breadth. Likewise, the history of tennis may also illustrate how the sociocultural evolution of Western civilisation can be understood through spor. 

RIJEKA ZETA KAO POTENCIJAL ZA RAZVOJ SPORTSKO-REKREATIVNIH OBLIKA TURIZMA

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Ognjen Jovović

2007-05-01

Full Text Available Ba sic for re a li za tion of to u rist mo ve ments lays in me e ting cul tu ral and rec re a ti onal ne eds of po ten tial cu sto mers. If we know that lar gest num ber of to u rists re pre sents part of rec re a ti o nal ones, than is not hard to re a li ze how lar ge po ten tial lays in that number of po ten tial gu ests. On this fact sho uld be bu ilt stra tegy of mo ve ment of to u rist of fer of Da ni lov grad for it ex tre me po ten ti als on which can be fo un ded con cre te pro ject. In this work are gi ven ba sic as sump ti ons for de ve lop ment of sport rec re a ti o nal sha pes of to u rism with stress to na tu ral po ten ti als of ri ver Ze ta its banks and its clo se sur ro un ding that di rectly de ter mine sha pe of sport rec re a ti o nal ac ti vi ti es that re pre sent ba sis of to u rist of fer. Of fer sho uld be cre a ted in that way that it is adap ted to wi de seg ment of rec re a ti o nal gu ests and not pro fes si o nal spor tsmen, alt ho ugh they al so sho uld not be un de re sti ma ted but one sho uld know that in or der to cre a te con di ti ons for ar ri val of sports pro fes si o nals of fer has to be com ple tely dif fe rent and mo re spe ci a li zed that re qu i res cre a ting of con di ti ons of existen ce of highly de ve lo ped sports in fra struc tu re, whi le for ama te urs a lot can be do ne in “system of im pro vi sing”, sa tisfying ba sic cri te ria – rec re a tion in con di ti ons of un touc hed and well pre ser ved na tu re with se cu ring ma xi mal le vel of se cu rity and pro tec tion of gu ests, in or der to pre vent pos si ble un wil ling con se qu en ces that can lead to in jury of gu ests and for de ve lop ment and re a li za tion of such pro ject one need a much less funds than is bu il ding of fa ci li ti es that sho uld me et stan dards of pro fes si o nal spor tsmen. Po ten tial of ri ver Ze ta are hu ge and at trac ti ve for which re pre sent na tu ral re so urce on which can be fo un ded

Econophysics and evolutionary economics (Scientific session of the Physical Sciences Division of the Russian Academy of Sciences, 2 November 2010)

International Nuclear Information System (INIS)

2011-01-01

7, Pages 742-749. Nonclassical random walks and the phenomenology of fluctuations of securities returns in the stock market, P V Vidov, M Yu Romanovsky Physics-Uspekhi, 2011, Volume 54, Number 7, Pages 749-753. Econophysics and the fractal analysis of financial time series, M M Dubovikov, N V Starchenko Physics-Uspekhi, 2011, Volume 54, Number 7, Pages 754-761 (conferences and symposia)

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

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)

Econophysics and evolutionary economics (Scientific session of the Physical Sciences Division of the Russian Academy of Sciences, 2 November 2010)

Science.gov (United States)

2011-07-01

54, Number 7, Pages 742-749 • Nonclassical random walks and the phenomenology of fluctuations of securities returns in the stock market, P V Vidov, M Yu Romanovsky Physics-Uspekhi, 2011, Volume 54, Number 7, Pages 749-753 • Econophysics and the fractal analysis of financial time series, M M Dubovikov, N V Starchenko Physics-Uspekhi, 2011, Volume 54, Number 7, Pages 754-761

Evaluación económica del tratamiento con ácido acetilsalicílico más esomeprazol comparado con clopidogrel en la prevención de la hemorragia gastrointestinal Economic evaluation of the treatment of aspirin plus esomeprazole compared to clopidogrel in gastrointestinal bleeding prevention

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Carme Piñol

2006-02-01

Full Text Available Objetivo: Evaluar la eficiencia del ácido acetilsalicílico (AAS más esomeprazol frente a clopidogrel en la prevención de la hemorragia gastrointestinal. Métodos: Análisis coste-efectividad (árbol de decisión de 2 ramas: AAS más esomeprazol y clopidogrel respecto a la evitación de casos de hemorragia gastrointestinal en 2 años, y análisis de sensibilidad. Resultados: El coste total del tratamiento con AAS más esomeprazol (2.865 S por paciente libre de hemorragia fue inferior al clopidogrel (2.965 S. El tratamiento con AAS resultó dominante. En todos los análisis de sensibilidad la combinación siguió siendo dominante. Al sustituir esomeprazol 40 mg por omeprazol 40 mg, el coste del tratamiento combinado descendió hasta 1.934S/por episodio evitado. Conclusiones: La asociación de esomeprazol y AAS es más coste-efectiva que clopidogrel en la prevención de la hemorragia gastrointestinal. La combinación con omeprazol resulta aún más coste-efectiva.Objective: To evaluate the use of aspirin plus esomeprazole vs. clopidogrel in the prevention of gastrointestinal bleeding. Methods: We performed a cost-effectiveness analysis (two-branch decision tree: aspirin plus esomeprazole or clopidogrel of prevention of gastrointestinal bleeding over a 2-year period, as well as sensitivity analyses. Results: The total cost of aspirin plus esomeprazole treatment (2,865S/patient free of hemorrhage was lower than that of clopidogrel (2,965S. Aspirin treatment was dominant. The combination continued to be dominant in all sensitivity analyses. When esomeprazole 40 mg was substituted by omeprazole 40 mg, the cost of combination therapy decreased to 1,934 S/prevented hemorrhage. Conclusions: The association of esomeprazole and aspirin is more cost-effective than clopidogrel in preventing gastrointestinal bleeding. Aspirin plus omeprazole was even more cost-effective.

DYNAMIC OF BIOMECHANIC TECHNOLOGY

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Duško Bjelica

2007-05-01

Full Text Available The mo ving con sists of a set of mo ve ments ma de on right ti me with a ca re fully cho sen in ten sity. Every com po sed mo ving is har mo ni o us but if we ru i ned that har mony in only one se ge ment, if only one mo ve ment was ma de too early or too la te with a gre a ter for ce, it wo uld de stroy the who le pro ce du re and the re sult wo uldn’t be op ti mal.The analysis of every com po sed sport mo ve ment is usu ally do ne in two pha ses: in the fi rst one it sho uld be esta blis hed the le vel of the tec hni cal know led ge, and in the se cond that know led ge sho uld be com pa red to the tec hi que of the sport man in that di sci pli ne. The only in di ca tors of the tec hni que of com plex mo ve ment are the fi rst and the second re sults of the ex ce e ded way and the se i zed an gle from the ac tual and re pre sen ta ti ve po int that are re pre sen ted di gi tally and by ana lo gue. When we com pa re tho se re sults with the re sults of a top spor tsman we will be co me awa re of the de vi a tion from the op ti mal compo si tion of the mo ve ments in to a mo ving and we will esta blish a re la ti on ship bet we en the fa i lu res and the ir con se qu en ces.

Spor Kulüpleri Performanslarının Hisse Senedi Fiyatlarına Etkisi: BIST’de Bir Uygulama(The Effect of Sport Clubs’ Performances on Stock Prices: An Application on BIST

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Abdulkadir KAYA

2013-12-01

Full Text Available Today, sports activities with increasing levels of traceability have become an economic sector on a large scale. Especially the process of going public of sports clubs, including football, the results of these companies competition contribution to the economies of the club moved to a size that attracts the attention of researchers. The aim of this study is to determine whether sports clubs’ stock price is affected by the results of football matches. For this purpose, whether the matches results of sports organizations of Besiktaş, Fenerbahçe, Galatasaray and Trabzonspor Inc. that are traded in Istanbul Stock Exchange in 2008-2009 and 2009-2010 seasons in Super League, Turkey Cup and European Cups are causing the abnormal return will investigated.

Long lines Co2. Results from over 20 years of research on Co2 capture. Thematic booklet; Lange spor CO2. Resultater fra over 20 aar med forskning paa CO2. Temahefte

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NONE

2011-07-01

CLIMIT program aims to accelerate commercialization of carbon sequestration through economic stimulation of research, development and demonstration. This publication focuses on documenting results of research on carbon sequestration both through the CLIMIT program and other research which can be traced back to the 1980s. This publication is part of a comprehensive plan for documentation of results.(eb)

Econophysics and evolutionary economics (Scientific session of the Physical Sciences Division of the Russian Academy of Sciences, 2 November 2010)

Energy Technology Data Exchange (ETDEWEB)

NONE

2011-07-31

, Yu V Kosse, A V Shcherbakov Physics-Uspekhi, 2011, Volume 54, Number 7, Pages 742-749. Nonclassical random walks and the phenomenology of fluctuations of securities returns in the stock market, P V Vidov, M Yu Romanovsky Physics-Uspekhi, 2011, Volume 54, Number 7, Pages 749-753. Econophysics and the fractal analysis of financial time series, M M Dubovikov, N V Starchenko Physics-Uspekhi, 2011, Volume 54, Number 7, Pages 754-761 (conferences and symposia)

Lithium and Beryllium By-product Recovery from the Round Top Mountain, Texas, Peraluminous Rhyolite Heavy Rare Earth Deposit

Science.gov (United States)

Pingitore, N. E., Jr.; Clague, J. W.; Gorski, D.

2016-12-01

The technology metals Li and Be combine low mass and unique properties. Li batteries are critical in applications at scales from micro-electronics to automotive and grid storage. Low mass Be structural components are essential in aerospace/defense applications and in non-sparking BeCu alloy oilfield tools. Most Li is sourced from desert salarsin the "Lithium Triangle" of Argentina—Bolivia—Chile. In contrast, Materion Corp mines >80% of global Be at Spor Mountain, UT. The massive peraluminous rhyolite heavy rare earth deposit at Round Top Mountain, TX is also enriched in Li, 500 ppm, and Be, 50 ppm. 2016 prices of 7000/tonne Li2CO3 (19% Li) and 1000/kg Be metal suggest favorable economics to extract Li and Be as by-products of HREE mining. Li and some Be are hosted in annite biotite that comprises up to 5% of the rhyolite. Texas Mineral Resources Corp proposes to heap leach crushed rhyolite with dilute H2SO4to release the yttrofluorite-hosted HREEs. At bench scale the annite biotite dissolves, but not quartz and feldspars (>90% of the rock). A series of 40 high-yield laboratory tests at various acid strength, particle size, and exposure time released up to 350 ppm (70%) of the Li and 14 ppm (30%) of the Be. For a 20,000 tonne/day operation, these recoveries correspond to daily production of >3 tonnes Li and 250 kg Be. Higher Li and Be recoveries also increased yields of gangue elements, Fe & Al, into solution. This complicates subsequent separation of Li, Be, and HREEs from the pregnant leach solution. Recovery of target HREEs did not increase beyond 200 ppm Li and 8 ppm Be recovery. Greater Li and Be recoveries increased acid consumption. Thus the "sweet spot" economics for heap leach is likely under conditions of acid strength, grain size, and exposure time that do not maximize by-product Li and Be recoveries. Evolving market prices for the full target element suite and additional costs to recover and purify the Li and Be must also be considered.

Early-career researchers' views on ethical dimensions of patient engagement in research.

Science.gov (United States)

Bélisle-Pipon, Jean-Christophe; Rouleau, Geneviève; Birko, Stanislav

2018-03-07

Increasing attention and efforts are being put towards engaging patients in health research, and some have even argued that patient engagement in research (PER) is an ethical imperative. Yet there is relatively little empirical data on ethical issues associated with PER. A three-round Delphi survey was conducted with a panel of early-career researchers (ECRs) involved in PER. One of the objectives was to examine the ethical dimensions of PER as well as ECRs' self-perceived level of preparedness to conduct PER ethically. The study was conducted among awardees of the Québec SPOR-SUPPORT Unit in Canada, who represent the next generation of researchers involved in PER. Many themes were addressed throughout the study, such as definition, values, patients' roles, expected characteristics of patients, and anticipated challenges (including ethical issues). Open-ended questions were used, and all quantitative data were collected through statements using 7-point Likert scales. Between April and November 2016, 25 ECRs were invited to participate; 18 completed both the first and second rounds, and 16 completed the third round. Panelists consisted of nine women and seven men with various backgrounds (general practitioners and postgraduate students). The majority were between 25 and 44 years old. Panelists' responses showed PER raises important ethical issues: 1) professionalization of patients involved in research (with risks of patients becoming less representative); 2) adequate remuneration of patients; 3) fair recognition of patients' experiential knowledge; and 4) tokenism (engaging patients only for symbolic appeal). While the panelists felt moderately prepared to confront these ethical issues, they reported being uncomfortable applying for an ethics certificate for a PER project. If PER is an ethical imperative, it is vital to establish clear ethical standards and to train and support the PER community to identify and resolve ethical issues. Despite their overall

Stenotik Biküspid Aort Kapak Anomalisi Efor Sonrası Ani Ölüm Olgusu

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Elif Ülker Akyıldız

2006-12-01

Full Text Available Biküspid aort kapağı, erişkinde aort darlığının sık nedeni olan, toplumda %l-2 oranında görülen, bazen hiçbir bulgu vermeyen bir konjenital kalp kapak anomalisidir. Erkeklerde üç-dört kat daha sıklıkla görülmektedir. Aort kapak prolapsusu, aort stenozu, aort regurjitasyonu ile birliktelik gösterebilir. Bu sunuda; efor (spor sonrası baş dönmesi şikayeti ile hastaneye kaldırılan ve aynı gün ölen, 14 yaşında erkek olgu sunulmuştur. Otopside; dış muayenede travmatik bulgu tespit edilmemiştir. İç muayenede; akciğer ağırlıkları artmış, kesitleri ödemli, kalp 380 g ağırlıkta, sağ ventrikül duvar kalınlığı 0,4 cm, sol ventrikül duvar kalınlığı 2 cm ölçülmüştür. Aort kapağının toplam uzunluğu 3,8 cm ölçülmüş, fibrotik kalınlaşma gösteren iki kapakçık görülmüştür. Histopatolojik incelemede; myokartta hipertrofi, aort kapağında bağ dokusu artışı ile fibrotik kalınlaşma, kalsifikasyon, aort duvarmda ara madde artışı, media tabakasında miksoid dejenerasyon tespit edilmiştir. Tüm bulgular eşliğinde ölüm nedeni biküspit aort kapağı zemininde gelişen aort darlığına bağlı kalp yetmezliği olarak değerlendirilmiştir. Olgunun klinik ve otopsi bulguları tartışılarak, ani ölüm olgularında kardiyak anomalilerin rolü ve otopsinin önemi vurgulamıştır. Anahtar kelimeler: Biküspid aort kapağı, otopsi, aort stenozu, ani ölüm.

Ortopedik Engelli ve Engelli Olmayan Erkek Ergenlerde Benlik Saygısı ve Beden İmajı

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Sema Kaner

2000-02-01

Full Text Available Bu araştırma, ortopedik engelli ve engelli olmayan ergenlerin benlik saygılarını ve beden imajı algılarını karşılaştırmalı olarak incelemeyi amaçlamaktadır. Veriler 55 ortopedik engelli erkek ve 123 normal erkek ergenden Kendine Saygı Ölçeği ve Beden İmajı Anketi ile toplanmıştır. Sonuçlar, grupların benlik saygıları açısından farklı olmadığım, ancak ortopedik engelli erkeklerin beden imajı algılarının engelli olmayan erkeklerinkinden daha olumlu olduğunu göstermektedir. Engelli olmayan erkeklerde benlik saygısı ve beden imajı arasında anlamlı ve olumlu yönde bir ilişki olmasına rağmen, ortopedik engelli erkeklerde bu iki değişken arasında bir ilişki bulunamamıştır. Engelli olmayan erkeklerde benlik saygısını en iyi yordayıcı değişkenler cinsel organlar, boy, ayaklar ve spor yeteneği, ortopedik engellilerde ise bacaklar, ten, omuzlar, beden kılı ve saçlardır. This study was designed to determine whether self-esteem and body image perception differed among orthopedically handicapped and normal adolescents. Data were collected from 55 orthopedically handicapped males and 123 normal males using Self-Esteem Scale and Body image Questionnaire. The results show that there were no significant differences on the self-esteem scores between groups but body image scores ofthe handicapped males in two groups were higher than the normal femalesAlthough it was found that a positive and significant correlation exist between self-esteem and body image perceptions of nonhandicapped males, no such correlation was foundfor handicapped males. The most predictive body aspects of self-esteem were genital organs, height, legs and sports ability in nonhandicapped males, and legs, skin, shoulders, amount of hair on theface and scalp in orthopedically handicapped males.

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

BEDEN EĞİTİMİ VE SPOR ÖĞRETMENLERİ AÇISINDAN TOPLAM KALİTE LİDERLİĞİ İLE İŞ TATMİNİ İLİŞKİSİ: ELAZIĞ ÖRNEĞİ

OpenAIRE

TİKİCİ, Mehmet; DEMİREL, Erkan T.; TEL, Mikail

2009-01-01

The present study analyzes the concepts of “Total Quality Leadership” and “Job Satisfaction”. The relationship between “job satisfaction” and “total quality leadership perceptions” of Physical Education and Sport Teaching teachers working in Elazıg province were analyzed, based on the view that, in developing Turkey, education and educators have significant effects on promoting perceptions of “total quality”. It was found that there was a “positive” but “insignificant” relationship betwe...

Radioisotopes as tracers for reactions in molten fluoride media; Les radioisotopes comme indicateurs des reactions se produisant dans des milieux de fluorures fondus; Ispol'zovanie radioizotopov v kachestve indikatorov dlya reaktsij v rasplavlennoj ftoristoj srede; Los radioisotopos como indicadores de las reacciones que tienen lugar en un medio de fluoruros fundidos

Energy Technology Data Exchange (ETDEWEB)

Grimes, W R; Shaffer, J H; Strehlow, R A; Ward, W T; Watson, G M [Oak Ridge National Laboratory, Oak Ridge, TN (United States)

1962-03-15

produce un aumento de la concentracion de radioisotopos en la solucion, de conformidad con la ley de accion de masas. Cuando se enfrian ciertas mezclas de LiF y BeF{sub 2} fundidas que contengan CeF{sub 3} y fluoruros de las tierras raras, la fase primaria consiste en una solucion solida de los trifluoruros. Los autores han evaluado los equilibrios entre la solucion fundida y la solucion solida, para diversos pares de fluoruros. No han observado ninguna desviacion notable respecto de la ley de accion de masas. Los autores logran la separacion de diversas especies por precipitacion selectiva de los oxidos a partir de soluciones de fluoruros fundidos. (author) [Russian] Putem ispol'zovaniya sootvetstvuyushchikh radioizotopov i standartnykh metodov otscheta byli izucheny khimicheskie reaktsii, kotorye mogut okazat'sya poleznymi dlya udaleniya nekotorykh sostavnykh chastej iz rasplavlennykh ftoristykh rastvorov. Byli izucheny sleduyushchie kategorii reaktsij: 1) izotopnyj obmen mezhdu rastvorennym indikatorom i nerastvorimymi slozhnymi veshchestvami; 2) raspredelenie rastvorennogo indikatora mezhdu rasplavom i rastvorom analogichnogo slozhnogo veshchestva v tverdom sostoyanii i 3) osazhdenie radioizotopa v kachestve nerastvorimogo slozhnogo veshchestva. V tipichnykh ehksperimentakh nablyudalos', chto radioaktivnyj indikator LaF{sub 3} v rasplavakh LiF-NaF bystro obmenivaetsya na neaktivnyj La{sub 2}O{sub 3}. V ehtom rastvoritele analogichnyj bystryj obmen proiskhodit mezhdu radioaktivnym indikatorom CeF{sub 3} i neaktivnym CeO{sub 2}; trebuemoe v poslednem sluchae perenesenie ehlektrona ochevidno ne prepyatstvuet ehtoj reaktsii. V sootvetstvii s printsipom massovogo dejstviya dobavlenie k kazhdoj iz ehtikh sistem neaktivnogo CeF{sub 3} uvelichivalo soderzhanie radioaktivnogo indikatora v rastvore. Pri okhlazhdenii nekotorykh rasplavov ZiF-BeF{sub 2}, soderzhashchikh CeF{sub 3}, i redkikh zemel' v kachestve pervichnoj fazy obrazuetsya tverdyj rastvor triftoristykh soedinenij

Some solvent extraction studies of trivalent metal halides; Quelques etudes sur l'extraction par solvant d'halogenures de metaux trivalents; Izuchenie ehkstraktsii nekotorykh rastvoritelej iz trekhvalentnykh metallicheskikh galoidov; Algunos estudios de la extraccion mediante disolventes de haluros de metales trivalentes

Energy Technology Data Exchange (ETDEWEB)

Dietz, Jr, R J; Mendez, J; Irvine, Jr, J W [Department of Chemistry and Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, MA (United States)

1962-03-15

Radiotracer techniques have made possible physical-chemical studies of the distribution of Ga (III) and In (III) between aqueous HCl and HBr solutions and the organic solvents, bis (2-chloroethyl) ether and nitrobenzene. From measurements of the extraction coefficients over a metal concentration range of greater than 10{sup 10} and under conditions where the coefficient varies by a factor of 10{sup 5}, the empirical behaviour of these systems has been thoroughly explored. The data have been explained in terms of ionization of the complex acid, HMX{sub 4}, in these relatively high dielectric solvents. From the variation of the extraction coefficient with metal concentration the ionization constant has been calculated of the supporting electrolyte, HCl or HBr, in the non-aqueous phase using a method developed by Poskanzer. Variation of the extraction coefficient with HX concentration has been used to calculate stability constants for the complex species MX{sub 3} and MX{sub 4}{sup -}. Since these are aqueous-phase reactions they are independent of the organic solvent used and excellent agreement is obtained for In (III)-HCl, using both bis (2-chloroethyl) ether and nitrobenzene. Attempts to evaluate the formation constants for gallium chloride and bromide complexes failed since the complex formation occurs over a very narrow range of acid concentration. Calculation from extraction data of the fraction, (GaCl{sub 4}{sup -})/{Sigma} Ga (III), as a function of HCl concentration gave a quantitative agreement with the data obtained from ion-exchange measurement by Kraus and Nelson. (author) [French] Les techniques utilisant des indicateurs radioactifs ont permis l'etude physico-chimique de la distribution du gallium (II) et de l'indium (III) entre les solutions aqueuses d'HCl et d'HBr et les solvants organiques ether bis (chloro-2-ethylique) et nitrobenzene. On etudie d'une facon empirique et approfondie le comportement de ces systemes, en se fondant sur les mesures des coefficients d'extraction pour une gamme de concentrations du metal superieure a 10{sup 10} et dans des conditions ou le coefficient varie selon un facteur de 10{sup 5}. Les donnees ont ete expliquees en termes d'ionisation de l'acide complexe HMX{sub 4} dans ces solvants a constante dielectrique relativement tres elevee. D'apres la variation du coefficient d'extraction en fonction de la concentration du metal, on a calcule la constante d'ionisation de l'electrolyte de support, HCl ou HBr, dans la phase non aqueuse, en appliquant une methode mise au point par Poskanzer. La variation du coefficient d'extraction en fonction de la concentration d'HX a ete utilisee pour calculer les constantes de stabilite, pour les especes completes MX{sub 3} et MX{sub 4}{sup -}. Etant donne que ces reactions ont lieu en phase aqueuse, elles sont independantes du solvant organique et l'on obtient une excellente concordance pour le systeme indium (III)-HCl en employant de l'ether bis (chloro-2-ethylique) et du nitrobenzene. Les efforts en vue d'evaluer les constantes de formation des complexes du chlorure et du bromure de gallium ont echoue, car la formation du complexe ne se produit qu'a l'interieur d'une gamme tres restreinte de concentrations de l'acide. Les resultats des calculs effectues d'apres les donnees d'extraction de la fraction (GaCl{sub 4}{sup -})/{Sigma} Ga(III), en fonction de la concentration d'HCl, correspondent quantitativement aux resultats obtenus par Kraus et Nelson au moyen des echanges d'ions. (author) [Spanish] Las tecnicas que emplean trazadores radiactivos permiten efectuar estudios quimico-fisicos de la distribucion del Ga (III) y del In (III) entre soluciones acuosas del HCl y HBr, y los disolventes organicos eter bis (2-cloroetilico) y nitrobenceno. Los autores han examinado empiricamente el comportamiento de estos sistemas midiendo los coeficientes de extraccion para concentraciones del metal que abarcan un intervalo superior a 10{sup 10} y en condiciones en las que el orden de magnitud del coeficiente varia en un intervalo de 10{sup 5}. Los autores explican los datos obtenidos sobre la base de la ionizacion del acido complejo HMX{sub 4} en estos disolventes, cuyas constantes dielectricas son relativamente elevadas. Empleando un metodo ideado por Poskanzer, han calculado la constante de ionizacion del electrolito soporte, HCl o HBr, en la fase no acuosa a partir de las variaciones que el coeficiente de extraccion experimenta en funcion de las concentraciones del metal. Las variaciones del coeficiente de extraccion con la concentracion de HX han servido para calcular las constantes de estabilidad de las especies complejas MX{sub 3} y MX{sub 4}{sup -}. Como se trata de reacciones en fase acuosa, las constantes son independientes del disolvente organico que se emplee. Para el sistema In (III)-HCl los autores obtuvieron resultados perfectamente concordantes tanto al emplear eter bis (2-cloroetilico) como nitrobenceno. Los autores no consiguieron evaluar las constantes de los complejos de cloruro y bromuro de galio porque dichos compuestos solo se forman en un intervalo de concentraciones de acido muy estrecho. Los valores del cociente (GaCl{sub 4}{sup -})/{Sigma} Ga (III) en funcion de la concentracion de HCl, calculados a partir de los datos de extraccion, concuerdan con los datos que Kraus y Nelson obtuvieron por mediciones del intercambio ionico. (author) [Russian] Metod mechenykh atomov pozvolil provesti izuchenie fiziko-khimicheskogo raspredeleniya Ga (III) i In (III) mezhdu vodnymi rastvorami HCl i HBr i organicheskimi rastvoritelyami, dvojnym ehfirom (2-khloroehtil) i nitrobenzolom. Na osnove izmerenij koehffitsientov ehkstraktsii pri kontsentratsii metalla vyshe 10{sup 10} i pri kolebanii dannogo koehffitsienta v predelakh 10{sup 5} tshchatel'no bylo razrabotano ehmpiricheskoe povedenie dannykh sistem. Rezul'taty vyrazhalis' v stepeni ionizatsii slozhnoj kisloty, HMX{sub 4}, izvestnoj v kachestve rastvoritelya s otnositel'no vysokimi diehlektricheskimi svojstvami. Po kolebaniyam koehffitsienta ehkstraktsii pri razlichnoj kontsentratsii metalla byla poluchena konstanta ionizatsii vspomogatel'nogo ehlektrolita, HCl ili HBr, v nevodnoj faze s ispol'zovaniem metoda, razrabotannogo Poskantserom. Variatsii koehffitsienta ehkstraktsii s kontsentratsiej HX ispol'zovalis' dlya rascheta konstant stabil'nosti dlya slozhnykh obraztsov MX{sub 3} i MX{sub 4}{sup -}. Tak kak oni yavlyayutsya reaktsiyami vodnoj fazy, to ne zavisyat ot ispol'zovannogo organicheskogo rastvoritelya, i poluchena polnaya soglasovannost' dlya In (III)-HCl pri ispol'zovanii dvojnogo ehfira (2-khloroehtil) i nitrobenzola. Popytki provedeniya otsenki obrazovaniya konstant dlya gallievogo khlorida i soedinenij broma okonchilis' neudachej, tak kak slozhnoe obrazovanie proiskhodit v ochen' uzkom diapazone kontsentratsii kisloty. Raschety na osnove rezul'tatov ehkstraktsii fraktsii (GaCl{sub 4}{sup -})/{Sigma} Ga (III) v kachestve funktsii ot kontsentratsii NS1 nakhodyatsya v kolichestvennom sootvetstvii s rezul'tatami, poluchennymi Krausom i Nel'sonom pri izmerenii ionnogo obmena. (author)

Synthesis of Graft Copolymers by Small Doses of Irradiation; Synthese des copolymeres greffes au moyen de petites doses de rayonnements; Sintez privitykh sopolimerov s pomoshch'yu malykh doz oblucheniya; Sintesis de copolimeros de injerto mediante pequenas dosis de radiacion

Energy Technology Data Exchange (ETDEWEB)

Dobo, J; Somogyi, M; Kiss, L

1960-07-15

laterales injertadas. Ello se traduce en una aceleracion, del proceso de injerto. Este efecto es especialmente pronunciado en el caso de los polimeros preformados, cuando la irradiacion es intermitente. El injerto de las moleculas de estireno puede acelerarse anadiendo algunos solventes que suprimen la accion protectora ejercida por el estireno sobre el polimero. Asimismo, el proceso puede acelerarse agregando otras sustancias. Al injertar moleculas de metacrilato de metilo en el polietileno, hemos conseguido un injerto de 6 400 por ciento con una dosis de 31 400 roentgens. Hemos examinado la estructura de los copolimeros asi obtenidos. (author) [Russian] Grafting (privivanie ) chasto soprovozhdaetsya nezhelatel'nym izmeneniem svojstv pervonachal'nogo polimera pri obluchenii monomernykh smesej polimera. Pod vozdejstviem oblucheniya grafting proiskhodit ne tol'ko v pervonachal'noj polimernoj osnove, no takzhe v bokovoj tsepi, uzhe podvergnuvshejsya graftingu. Grafting v rezul'tate ehtogo uskoryaetsya. EHtot ehffekt osobenno yarko vyrazhen v tverdykh polimerakh, esli obluchenie proizvoditsya periodicheski. Grafting stirola mozhet byt' uskoren dobavleniem nekotorykh rastvoritelej, kotorye blokiruyut zashchitnoe vozdejstvie stirola na dannyj polimer. Grafting mozhet byt' uskoren i drugimi additivami. Issleduyutsya kachestva nabukhaniya obluchennoj plenki. (author)

Cercetări privind valorificarea ca îngrăşământ a deşeurilor din industria vinicolă şi cea de producere a alcoolului etilic

Directory of Open Access Journals (Sweden)

Vasile PLĂMĂDEALĂ

2016-06-01

Full Text Available The article presents the results of field testing of three waste types: wine yeast, vinasse and grain mash derived from grape processing and ethyl alcohol production. The results proved that the administration of two doses of wine yeast (13 and 26 t/ha, of vinasse (300 and 600 m3 /ha and of grain mash (50 and 100 m3 /ha contributed to the significant increase of the organic matter content, mobile phosphorus and changeable potassium in the arable soil layer. The use of wine yeast annually ensured a significant increase of grape yields by 1.2 – 2.2 t/ha or by 12 – 22 % more than those obtained from the unfertilized control variant, where only 10.2 t/ha were harvested. The vinasse had a significant impact on the grapevines productivity as well. The grape harvest constituted on average 0.9 – 1.0 t/ha or by 9 – 10 % more than in the control variant. The grain mash contributed to obtain an average increase of the yield of 993-1292 kg/ha of grain units or by 45 -58 % more compared to the unfertilized variant. Rezumat. În articol sunt prezentate rezultatele testării în câmp a 3 deşeuri: drojdii de vin, vinasă şi borhot de cereale, provenite de la prelucrarea strugurilor şi producerea alcoolului etilic. Rezultatele au demonstrat că administrarea, în două doze, a drojdiilor de vin (13 şi 26 t/ha, a vinasei (300 şi 600 m3 /ha şi a borhotului de cereale (50 şi 100 m3 /ha a favorizat majorarea semnificativă a conţinutului de materie organică, fosfor mobil şi potasiu schimbabil în stratul arabil de sol. Aplicarea drojdiilor de vin anual a asigurat un spor semnificativ de struguri de 1,2-2,2 t/ha sau cu 12-22% mai mult decât la martorul nefertilizat, unde s-a recoltat 10,2 t/ha. Acţiune semnificativă asupra productivităţii plantelor viţei-de-vie a avut-o şi vinasa. Sporul de recoltă în medie a constituit 0,9-1,0 t/ha sau cu 9-10 % mai mult decât la martor. Borhotul de cereale a contribuit la obţinerea unor sporuri medii

‘Optimism against all odds’: Polish National Identity in War Films of Jerzy Passendorfer

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Mikołaj Kunicki

2017-12-01

źniejszością, doprowadzając do swoistego rodzaju amnezji. Artykuł stawia tezę, że zaproponowana przez Passendorfera synteza nacjonalizmu, autorytaryzmu i militaryzmu cieszyła się sporą popularnością wśród masowego widza z powodu zapożyczeń z zachodniego kina gatunkowego oraz potrzeby optymistycznej wizji wspólnoty narodowej. Patriotyczne filmy akcji Passendorfera uległy zapomnieniu po upadku Gomułki, jednak w dalszym ciągu stanowią kulturowy model, który może być wykorzystywany na potrzeby polityki historycznej.

S-38: Grekoromen Stil Güreş Yapan Sporcularda Vertimax Çalışmalarının Anaerobik Güce ve Bacak Kuvvetine Etkisi

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Adnan Ersoy

2017-03-01

Full Text Available Bu çalışmanın amacı grekoromen stil güreş yapan sporcularda vertimax çalışmalarının anaerobik güce ve bacak kuvvetine etkisinin belirlenmesidir. Çalışmaya 18-25 yaşları arasında, aktif olarak en az üç yıldır spor yapan ve müsabakalara katılan grekoromen stil güreşçilerden oluşan 32 erkek sporcu katılmıştır. Erkek sporculardan 17 ‘si deney grubunda yer alırken 15 ‘i ise kontrol grubu olarak yer almaktadırlar. Deney grubunda yer alan katılımcıların boy değerleri (n=17 175,82 ± 6,92 cm, vücut ağırlığı (n=17 75,88 ± 10,67 kg; kontrol grubunda ise (n=15 177,4 ± 5,47 cm, vücut ağırlığı (n=15 75,6 ± 10,35 kg olarak tespit edilmiştir. Katılımcıların vertimax platformunda haftada üç gün toplamda sekiz haftalık uygulanan direnç egzersizleri sonucunda çalışma öncesi ve sonrası anaerobik güç ve bacak kuvvet değerleri tespit edildi. İki yönlü varyans analizi (two-way repeated measures of ANOVA sonucunda, deney ve kontrol grubu sporcuların wingate testine ait absolute anaerobik güç (F=16.352; p<0.05, relatif anaerobik güç (F=17.149; p<0.05, absolute anaerobik kapasite (F=9.581; p<0.05 ve relatif anaerobik kapasite (F=12.281; p<0.05 ön test ve son test değerleri arasında ve sağ bacak ekstansiyon (F=37.308; p<0.05, sol bacak ekstansiyon (F=160.340; p<0.05, sağ quadriceps (F=25.153; p<0.05 ve sol quadriceps (F=12.688; p<0.05 kuvvetine ait ön test ve son test değerleri arasında GrupXZaman etkileşimi anlamlı bulunmuştur. Sonuç olarak vertimax platformunda uygulanan direnç antrenmanlarının anaerobik güç ve bacak kuvveti değerleri üzerinde olumlu yönde etkisi olduğu görülmüştür.

Manufacture of Wood-Plastic Combinations by Use of Gamma Radiation; Fabrication de combinaisons bois-matiere plastique a l'aide des rayons gamma; Proizvodstvo drevesno-plastmassovykh sostavov s pomoshch'yu gamma-izlucheniya; Impregnacion de maderas con materiales plasticos en presencia de radiaciones gamma

Energy Technology Data Exchange (ETDEWEB)

Kent, J. A.; Winston, A.; Boyle, W.; Updyke, L. [Engineering Experiment Station, West Virginia University, Morgantown, West Virginia (United States)

1963-11-15

polimerizovali. Ustanovleno, chto pronitsaemost' myagkikh sortov drevesiny znachitel'no otlichaetsya ot pronitsaemosti tverdykh sortov. V nekotorykh predelakh mozhno regulirovat' soderzhanie monomera v drevesine, chtoby poluchat' trebuemuyu kontsentratsiyu polimera v razlichnykh obraztsakh drevesiny. Privedeny krivye konversii dlya radiatsionnoj polimerizatsii metilMetakrilata, vinilatsetata i stirola v drevesine beloj sosny, belogo duba, krasnogo dereva, chernogo topolya, berezy, buka, eli i tverdogo klena. Pokazano vliyanie moshchnosti dozy na skorost' polimerizatsii v vysheprivedennykh sistemakh. Nekotorye sistemy nesovmestimy. Tak, naprimer, v drevesine krasnogo dereva ne prokhodit polimerizatsiya vinilatsetata i metidmetakridata, v to vremya kak ona proiskhodit v beloj sosne. Izuchen ryad sshivayushchikh agentov s tsel'yu ustanovit' ikh ehffektivnost' v uvelichenii skorosti polimerizatsii i proverit', nel'zya li dostich' bolee korotkogo tsikla. Rezul'taty ispytanij privedeny dlya allilakrilata, ehtilenglikolya, dimetakrilata, poliehtilenglikol'dimetakrilata, tetraizopropiltitanata, allilmetakrilata i (v sluchae stirola) divinilbenzola. Fiziko-mekhanicheskie ispytaniya, provedennye na drevesno-polimernykh kombinatsiyakh, pokazali, chto tverdost', predel uprugosti pri szhatii, razmernaya stabil'nost' i pokazateli nekotorykh drugikh svojstv vozrastayut. Obychno nablyudaetsya povyshenie khrupkosti po sravneniyu s nemodifitsirovannoj drevesinoj. Predstavleny dannye po tverdosti, predelu uprugosti pri szhatii, razmernoj stabil'nosti, staticheskomu izgibu i srezu. (author)

SPOR YAPAN VE YAPMAYAN ÜNİVERSİTE ÖĞRENCİLERİNİN BENLİK SAYGISI VE ATILGANLIK DÜZEYLERİNİN İNCELENMESİ (Muğla Sıtkı Koçman Üniversitesi Örneği)

OpenAIRE

MOLLAOĞULLARI, Hacalet; ESEN, Cemil Alptuğ

2013-01-01

This research was conducted at Mugla Sıtkı Koçman University on the students who are both doing exercises and who do not in order to explore their self-esteem and assertiveness levels. This study’s population consists of students who are studying at universities in Turkey where its sample consists of 669 students (330 women and 339 men) in total who are studying in various departments (Faculty of Science, Faculty of Letters, and Physical Education and Sports School) of Mugla University. In th...

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

When neutrons irradiate a tissue phantom, the recoil nuclei that are produced have a continuous spectrum of energies. Even in the case of monoenergetic neutrons, there will be continuous distributions of energy for the various recoil nuclei and, hence, also a-continuous distribution of dose with respect to LET. Using a Monte-Carlo-type programme for the Controlled Data 1604 Computer, the LET spectrum of dose from monoenergetic beams of neutrons has been computed for tissue cylinders simulating a mouse, rat, guinea pig, dog, and man. Tissue was considered to consist of H, C, N, and O, in the proportions given for standard man. The H cross-sections used followed BNL-325 closely, and the cross-sections for O, N, and C were taken from NDA 2111-3, Vol. A; ORNL-2389; and NDA 12-16, respectively. The case of a phantom irradiated by the modified fission spectrum used by Neary is computed also. The LET distributions so obtained are used, together with values of RBE recommended by ICRP, to provide some interpretation of biological effects of neutron irradiation. These distributions are compared with data on biological effects of neutrons from some experiments and support, at least in part, some of the prevalent ideas concerning the dependence of RBE on LET, e.g. presence of repair and oxygen effect primarily with dose in low ranges of LET. Although these interpretations must be considered as preliminary, these LET distributions provide a basis for further experimental tests of the relation of RBE and LET. (author) [French] Lorsqu'un modele de tissu est expose aux neutrons, les noyaux de recul qui se produisent ont un spectre continu d'energies. Meme s'il s'agit de neutrons monoenergetiques, la repartition de l'energie des differents noyaux de recul sera continue, de sorte que la repartition de la dose en fonction du TLE le sera egalement. Avec une calculatrice 'Controlled Data 1604' , programmee a l'aide d'une methode de Monte-Carlo, on a calcule, en fonction du TLE, le spectre de la dose delivree par des faisceaux de neutrons monoenergetiques a des modeles cylindriques de tissus simulant une souris, un rat, un cobaye, un chien et un homme. On a admis que ces tissus consistaient en H, C, N et C dans les memes proportions que pour l'homme standard. Les sections efficaces de H etaient sensiblement identiques a celles qui sont donnees dans BNL-325 et les sections efficaces de 0 ,N et C ont ete reprises de NDA 2111-3 (volume A ), ORNL-2389 et NDA 12-16, respectivement. On a calcule egalement le cas d'un modele irradie par le spectre de fission modifie utilise par Neary. Les valeurs ainsi obtenues de la repartition de la dose en fonction du TLE, associees aux valeurs de l'EBR recommandees par la CIPR, permettent d'interpreter les effets biologiques de l'exposition aux neutrons. Ces valeurs ont ete comparees aux donnees sur les effets biologiques des neutrons obtenues a la suite de certaines experiences; elles confirment, du moins en partie, les hypotheses generalement admises sur la relation fonctionnelle entre l'EBR et le TLE, par exemple que la possibilite de guerison et l'effet d'oxygene se manifestent essentiellement par les doses a faible TLE. Bien que ces interpretations revetent encore un caractere preliminaire, la repartition de la dose en fonction du TLE pourra servir de base a de nouvelles experiences sur la relation entre l'EBR et le TLE. (author) [Spanish] Cuando un modelo de tejido se expone a neutrones, los nucleos de retroceso formados presentan un espectro energetico continao. Aun en el caso de los neutrones monoenergeticos, se observaran distribuciones continuas de energia para los distintos nucleos de retroceso y, por lo tanto, tambien sera continua la distribucion de la dosis en funcion de la TLE. Utilizando un programa tipo Montecarlo en la calculadora 'Controlled Data 1604', el autor calculo, en funcion de la TLE, el espectro de la dosis proporcionada por haces monoenergeticos'de neutrones a modelos cilindricos de tejidos 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 proporcijah standartnogo chelovecheskogo or ganizma. Poperechnoe sechenie N strogo sootvetstvovalo B N L -325, sechenija dlja O , N i S byli vzjaty iz NDA 2111-3 (tom A ) , ORNL-2389 i NDA 12-16 sootvetstvenno. Proizvedeny takzhe vychislenija dlja fantoma, o b luchennogo nejtronami modificirovannogo raspredelenija LPJe narjadu s velichinami OBJe , rekomendovannymi MKRZ, ispol'zovalis' dlja interpretacii biologicheskogo dejstvija nejtronnogo obluchenija. Jeti dannye raspredelenija sravnivalis' s nekotorymi jeksperimental'nymi dannymi o biologicheskom dejstvii nejtronov i javljajutsja v nekotoroj stepeni podtverzhdeniem nekotoryh rasprostranennyh idej otnositel'no zavisimosti O BJe ot LP Je : razvitie vosstanovitel'nyh processov i kislorodnyj jeffekt preimushhestvenno pri dozah s nizkoj L P Je . Hotja jeti ob{sup j}asnenija dolzhny schitat'sja predvaritel'nymi, poluchennye velichiny raspredelenija L P Je obespechivajut osnovu dlja dal'nejshih jeksperimental'nyh issledovanij svjazi OB Je i LPJe . (author)

Beryllium

Science.gov (United States)

Foley, Nora K.; Jaskula, Brian W.; Piatak, Nadine M.; Schulte, Ruth F.; Schulz, Klaus J.; DeYoung,, John H.; Seal, Robert R.; Bradley, Dwight C.

2017-12-19

Beryllium is a mineral commodity that is used in a variety of industries to make products that are essential for the smooth functioning of a modern society. Two minerals, bertrandite (which is supplied domestically) and beryl (which is currently supplied solely by imports), are necessary to ensure a stable supply of high-purity beryllium metal, alloys, and metal-matrix composites and beryllium oxide ceramics. Although bertrandite is the source mineral for more than 90 percent of the beryllium produced globally, industrial beryl is critical for the production of the very high purity beryllium metal needed for some strategic applications. The current sole domestic source of beryllium is bertrandite ore from the Spor Mountain deposit in Utah; beryl is imported mainly from Brazil, China, Madagascar, Mozambique, and Portugal. High-purity beryllium metal is classified as a strategic and critical material by the Strategic Materials Protection Board of the U.S. Department of Defense because it is used in products that are vital to national security. Beryllium is maintained in the U.S. stockpile of strategic materials in the form of hot-pressed beryllium metal powder.Because of its unique chemical properties, beryllium is indispensable for many important industrial products used in the aerospace, computer, defense, medical, nuclear, and telecommunications industries. For example, high-performance alloys of beryllium are used in many specialized, high-technology electronics applications, as they are energy efficient and can be used to fabricate miniaturized components. Beryllium-copper alloys are used as contacts and connectors, switches, relays, and shielding for everything from cell phones to thermostats, and beryllium-nickel alloys excel in producing wear-resistant and shape-retaining high-temperature springs. Beryllium metal composites, which combine the fabrication ability of aluminum with the thermal conductivity and highly elastic modulus of beryllium, are ideal for

Some Possibilities of Radiation Polymerization from the Gaseous Phase on Solid Bases; Possibilites de polymerisation radiochimique en phase gazeuse sur des lits de matiere solide; O nekotorykh vozmozhnostyakh radiatsionnoj polimerizatsii iz gazovoj fazy na tverdykh podlozhkakh; Perspectivas de la radiopolimerizacion en fase gaseosa sobre lechos de sustancias solidas

Energy Technology Data Exchange (ETDEWEB)

Tsetlin, B. L.

1963-11-15

The unusual feature of graft polymer synthesis by solid ''bed'' irradiation in the presence of monomer vapours is that the activation centres initiating polymerization are in practice generated only on the bed; transmission of the kinetic chain to the monomer is impeded and new polymer chains grow only under the influence of the solid bed molecular forces. These features of gas phase processes enlarge the scope of the graft polymer technique, making it applicable to inorganic beds and usable in the synthesis of mineral organic products. If stretched synthetic fibres are used as a bed, on the other hand, their orientated macromolecules control the growth of new polymer chains and the graft polymer is formed directly as an orientated structure. Two-component combined fibres are formed as a result and the fibre-bed and ''grafted'' fibre may in appropriate circumstances each display their own particular complex of mechanical properties. (author) [French] La synthese des polymeres greffes par irradiation de ''lits'' de matiere solide en presence de vapeur de monomeres en voie de polymerisation presente les particularites suivantes: les centres actifs qui amorcent la polymerisation ne se forment pratiquement qu'a la surface du ''lit''; le transfertau monomere de la chaine en mouvement est rendu plus difficile; les nouvelles chafnes du polymere se developpent sous l'action unilaterale des forces moleculaires de la surface solide. Ces particularites du processus en phase gazeuse elargissent les possibilites qu'offre la methode de la polymerisation par greffage. La methode peut alors etre egalement appliquee aux lits non organiques et servir a la synthese de composes organomineraux. En revanche, lorsqu'on utilise comme lits des fibres synthetiques allongees, les macromolecules orientees de ces dernieres dirigent la croissance des nouvelles chaines du polymere de sorte que le polymere greffe se forme directement a l'etat oriente. On obtient ainsi des fibres cominees a deux composants; la fibre servant de lit et la fibre ''greffee'' peuvent, dans des conditions appropriees, presenter chacune son propre ensemble de proprietes mecaniques. (author) [Spanish] de vapores del monomero respectivo se caracteriza por los siguientes aspectos: los centros activos que inician la polimerizacion solo se forman en la superficie del lecho, obstaculizando el transporte de la cadena cinetica al monomero y las nuevas cadenas polimericas se desarrollan por influencia unilateral de las fuerzas moleculares en la superficie solida. Estas particularidades del proceso en fase gaseosa mejoran las perspectivas que ofrece el metodo de polimerizacion injertada. Asi, es factible extender la aplicacion del mismo a lechos inorganicos y emplearlo para la sintesis de compuestos organo-minerales. Por otra parte, si se emplean como lechos fibras sinteticas estiradas, las macromoleculas orientadas de estas fibras dirigen el desarrollo de las nuevas cadenas polimericas de modo que el polimero injertado se obtiene directamente en estado orientado. Como consecuencia, se forman fibras combinadas de dos componentes; las fibras del lecho y las fibras ''injertadas'' pueden, en condiciones apropiadas, ofrecer la suma de las propiedades mecanicas propias de cada tipo. (author) [Russian] Svoeobrazie sinteza privitykh polimerov putem oblucheniya tverdykh ''podlozhek'' v prisutstvii parov polimeriehuyushchikhsya monomerov sostoit v tom, chto aktivnye tsentry, initsiiruyushchie polimerizatsiyu, generiruyutsya prakticheski tol'ko na podlozhke, peredacha kineticheskoj tsepi monomeru zatrudnena, i novye polimernye tsepi rastut v usloviyakh odnostoronnego vliyaniya molekulyarnykh sil tverdoj poverkhnosti. Ehti osobennosti gazofaznogo protsessa rasshiryayut vozmozhnosti metoda privitoj polimerizatsii. Metod mozhet byt' rasprostranen v ehtom sluchae i na neorganicheskie podlozhki i ispol'zovan dlya sinteza mineral'no-organicheskikh produktov. S drugoj storony, pri ispol'zovanii v kachestve podlozhek vytyanutykh sinteticheskikh volokon orientirovannye makromolekuly poslednikh napravlyayut rost novykh polimernykh tsepej, i privitoj polimer obrazuetsya neposredstvenno v orientirovannom sostoyanii. V rezul'tate obrazuyutsya dvukhkomponentnye kombinirovannye volokna, prichem volokno-podlozhka i ''privitoe'' volokno mogut v sootvetstvuyushchikh usloviyakh proyavlyat' svoj sobstvennyj kompleks mekhanicheskikh svojstv. (author)

Perspectives for the Use of Ionizing Radiation in the Decontamination (Salmonella Radicidation) of Some Frozen Proteinaceous Foods and Dry Mixed Feed Ingredients; Perspectives de l'Emploi des Rayonnements pour la Decontamination (Radicidation de Salmonella) de Certains Aliments Proteiques Congeles et des Constituants de Melanges Alimentaires Secs pour Animaux; Perspektivy ispol'zovaniya ioniziruyushchego izlucheniya dlya unichtozheniya bakterij (Gruppy Salmonella) nekotorykh zamorozhennykh belkovykh osnovnykh pishchevykh produktov i sukhikh komponentov smeshannogo'fura; Radiodescontaminacion (Radicidacion de la Salmonella) de Algunos Alimentos Proteicos Basicos Congelados y de Componentes de Alimentos Secos para Animales

Energy Technology Data Exchange (ETDEWEB)

Mossel, D. A.A. [Central Institute for Nutrition and Food Research T.N.O., Zeist (Netherlands)

1966-11-15

, pigmentirovannyh jenterobakterial'nyh vidov. Ni na odnom iz ispytannyh urovnej obluchenija ne bylo zafiksirovano postojannoe, radiacionno zavisimoe, neblagoprijatnoe'vozdejstvie na'po'dopytnyhzhivotnyh, naprimer,krysah i v men'shej stepeni - na porosjatah. Pojetomu delaetsja vyvod, chto teper' mozhno osushhestvit' tret'ju stupen' ocenki, kak-to: (probnye opyty po dezaktivacii na kommercheskoj osnove v rajone proizvodstva. Vozmozhno, chto latinoamerikanskie strany, kak, naprimer, Argentina i Peru, javljajutsja naibolee podhodjashhimi rajonami dlja provedenija pervyh ispytanij takogo roda, poskol'ku oni vhodjat v chislo samyh krupnyh jeksporterov nekotoryh predmetov potreblenija, kotorye chasto byvajut zarazheny salmonelloj (zamorozhennoe konskoe mjaso bez kostej, a takzhe rybnaja muka i muka iz semjan hlopka), i raspolagajut, kak pravilo, horosho oborudovannymi laboratorijami i otnositel'no horosho podgotovlennymi kadrami. Istochnik kobal't-60 v 50 000 kjuri ili rentgenovskaja ustanovka analogichnoj moshhnosti mogut uspeshno primenjat'sja pri provedenii takih ispytanij. Metody mikrobiologicheskoj ocenki dlja obychnogo kontrolja za dejstvennost'ju takoj obrabotki posredstvom obluchenija uzhe razrabotany i ispytany v opytnyh uslovijah. Nakonec, tam, gde jeto vozmozhno, v jeksperimental'nom porjadke sleduet sravnit' preimushhestva takoj obrabotki s preimushhestvami konkurentosposobnyh, obychnyh metodov obrabotki, kak, naprimer, granulirovaniem v sluchae dezaktivacii furazha; takoj podhod dast vozmozhnost' sootvetstvujushhim otrasljam promyshlennosti sdelat' svoi vyvody uzhe pri zavershenii pervyh ispytanij na kommercheskoj osnove. (author)

An Idea on the Maximum Permissible Concentrations of Radioactive Materials in Sea Water; Concentrations Maxima Admissibles des Substances Radioactives dans l'Eau de Mer; 041e 041c 0414 ; Concentracion Maxima Admisible de Materiales Radiactivos en las Aguas del Mar

Energy Technology Data Exchange (ETDEWEB)

Hiyama, Yoshio [University of Tokyo (Japan)

1960-07-01

sobre el analisis quimico de las aguas marinas y del cuerpo humano, trata; de encontrar una relacion entre el grado de contaminacion del agua del mar por varios radionuclidos y el grado de intensidad de la dosis de radiacion en el cuerpo humano causada por estos radionuclidos de origen marino. Sin, embargo, aunque los especialistas en oceanografia, salud publica, nutricion, radiobiologia y en otras materias reconozcan la conveniencia de efectuar; esos calculos habra que obtener mas datos sobre la cantidad de trazadores, en las aguas del mar, en los productos marinos y en el cuerpo humano, para confeccionar un cuadro de las concentraciones maximas admisibles de diversos radionuclidos en las aguas del mar. En la memoria, el autor se limita a enunciar la idea y a describir algunos ejemplos. (author) [Russian] V nastojashhem doklade avtor stremitsja najti svjaz' mezhdu urovnem zarazhennosti morskoj vody nekotorymi vidami radionuklidov i urovnem radiacionnoj dozy, poluchaemoj chelovekom v rezul'tate dejstvija radionuklidov morskogo proishozhdenija; avtor ispol'zuet pri jetom rekomendacii MKRZ i nekotorye dannye himicheskogo analiza morskoj vody i chelovecheskogo organizma, izvestnye emu. Odanko, esli ideja jetih raschetov budet priznana uchenymi v oblasti okeanografii, zdravoohranenija, pitanija, radiacionnoj biologii i dr., vse zhe potrebujutsja dopolnitel'nye dannye o kolichestvah metjashhih jelementov v morskoj vode, v produktah morja i v chelovecheskom organizme dlja togo, chtoby zavershit' tablicu maksimal'no dopustimyh koncentracij v morskoj vode razlichnyh vidov radionuklidov. Ideja, vyskazannaja v doklade, nosit chisto predvaritel'nyj harakter; v doklade takzhe dajutsja nekotorye primery. (author)

Lisanslı Spor Ürünlerinin Algılanan Değer Bileşenlerinin Satın Alma Niyeti ile İlişkisi: Türkiye’nin En Büyük Üç Futbol Kulübünün İncelenmesi

Directory of Open Access Journals (Sweden)

İpek KAZANÇOĞLU

2016-03-01

Full Text Available Lisanslı ürünler futbol kulüplerine hem düzenli bir gelir kaynağı, hem de taraftarlarıyla olan duygusal bağlarını geliştirme imkânı sunmaktadır. Araştırmanın amacı; taraftarların takımla özdeşleşme düzeyleri ve lisanslı ürünlerin algılanan değeri arasındaki ilişkileri incelemek, bu faktörlerin satın alma niyeti üzerindeki etkilerini araştırmaktır. Türkiye’nin üç büyük futbol kulübünün taraftarlarından toplam 953 kişiyle anket çalışması gerçekleştirilmiştir. Araştırma sonuçlarına göre, taraftarların takımla özdeşleşme düzeyi ile lisanslı ürünleri satın alma niyeti arasında doğrudan ilişkinin olmadığı, algılanan değerin etkisi aracılığıyla takımla özdeşleşmenin satın alma niyetine etkisi olduğu belirlenmiştir. Kulüpler temelindeki farklılıkların görülmesi için yapılan analizler, her kulüp için lisanslı ürünlerin öne çıkan algılanan değer boyutlarının farklılaştığını göstermektedir.

S-34: Üst Düzey U-14 Erkek Futbolcuların Lig Performansları ve Psikolojik Duygu Durum İlişkisi

Directory of Open Access Journals (Sweden)

Raziye Dut

2017-03-01

Full Text Available GİRİŞ: Her spor dalında olduğu gibi futbolda da futbol oynama amacı, bireysel psikolojik farklılıklar futbolcunun lig performansını etkileyebilmektedir. Özellikle adolesan döneminde fiziksel ve psikolojik farklılıklar oldukça yoğun ve labil yaşanmaktadır. Bu değişikliklerin futbolcunun lig performansına yansıması çoğu zaman kaçınılmaz olabilmektedir. AMAÇ: Aynı kronolojik yaşta milli takım seçilme kampına davet edilmiş erkek futbolcuların lig performansları ve psikolojik duygu durum ilişkilerini incelemektir.GEREÇ-YÖNTEM: 2016-2017 sezonunda U-14 yaş kategorisinde milli takıma seçilme kampına davet edilen 288 sporcudan akademi liglerinde oynayan 158 erkek futbolcu çalışmaya dahil edildi. İlk yarı dönemdeki maç, gol, toplam dakika, sarı/ kırmızı kart sayıları sporda güdülenme ölçeği (SGÖ, kovaks depresyon anketi (KOVAKS, çocuklarda anksiyete tarama ölçeği (ÇATÖ kullanılarak psikolojik duygu durum ilişkisi incelendi. Nicel veriler ortalama ± Standart Sapma (SS ile özetlendi. Gruplar arası farklılıkların saptanmasında chi-square, Mann-Whitney, ANOVA, post hoc Tukey, korelasyon için Spearman testleri kullanıldı. P0,05. SDÖ puanları ile maç (r=-0,136, p=0,045, toplam oynadıkları dakika (r=-0,149, p=0,032, gol sayıları (r=-0,139, p=0,043 arasında düşük negatif korelasyon saptandı. 1. yaş çeyreğinde olanlarda daha fazla patolojik KOVAKS puanı (p=0,003. 1.yaş çeyreğinde SDÖ puanları 2.yaş çeyreğine göre düşüktü (p=0,041.SONUÇ: Spocuların oynadıkları maç sayısının azalmasıyla sporda güdülenmemenin artığı ve attıkları gol sayısıyla özdeşimler düzenlemenin arttiğı saptandı. Psikolojik duygu durum dalgalanmasının sık yaşandığı adolesan döneminde yarışma kaygısı futbol gibi takım oyununda oyuna yansıması kaçınılmaz olabilir. Çalışmanın geniş kitlelerde yapılarak hassas bir dönem olan adolesan d

Trakyada Yeşilyurt Gazetesine Göre 1944 Yılında II. Dünya Savaşı ve Kırklareli

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Türkan Vahibe DOĞRUÖZ

2016-08-01

Full Text Available Gazeteler günlük ya da haftalık olarak, özel bir konuda veya genel konularla ilgili güncel olayları ve gelişmeleri okuyucularına ileten yazılı belgelerdir. Bu belgeler aynı zamanda yayınladıkları dönemi günümüze taşıyan birincil kaynaklardır. İl özelinde çıkan yerel gazetelerde ilde yaşanan siyasi, ekonomik, sosyal ve kültürel gelişmelere ilişkin okuyuculara ve araştırmacılara bilgi sağlarlar. Ali Rıza Dursunkaya tarafından 31 Ağustos 1925 tarihinde yayın hayatına başlayan Trakya’da Yeşilyurt gazetesi de Kırklareli’nin ilk yerel gazetesi olma özelliğini taşımaktadır. Günümüze kadar yayım hayatına devam eden gazete Kırklareli’nde yaşanan siyasi, ekonomik, sosyal ve kültürel olayları bizlere ulaştırmaya devam etmektedir. Çalışmamızda Trakya’da Yeşilyurt gazetesinin II. Dünya Savaşı’nın son yıllarına rastlayan 1944 yılına ait 07 2. Kanun (Ocak 1944- 29 2. Kanun 1944 tarihleri arasında haftada iki gün Salı ve Cuma günleri yayımlanan 1313-1413 sayıları incelenecektir. Böylece Türkiye’nin II. Dünya Savaşı sırasında yaşadığı zor günler Kırklareli örneği ile anlatılmaya çalışılacaktır. Amacımız II. Dünya Savaşı’nın yaşandığı günlerde siyasi, ekonomik, sosyal ve kültürel açıdan Kırklareli’nde yaşananları o günün gazete haberlerini kronolojik bir sıra takip ederek mevcut durumu incelemektir. Trakya’da Yeşilyurt gazetesi ile ilgili olarak böyle bir çalışmanın daha önce yapılmamış olması göz önüne alındığında dönemle ilgili Kırklareli iline yeni bir bakış açısı getireceği düşünülmektedir. İkinci Dünya Savaşı’nın son yıllarına tekabül eden ve Türkiye’nin zor zamanlarına tanıklık etmiş savaş haberleri dışında eğitim, ekonomi, tarım kooperatif, kültür, sanat, sağlık, spor, haberleriyle halka ışık tutacaktır.

Present Status and Future Prospects of Irradiation Preservation for Fish; Etat Actuel et Perspectives de la Radioconservation du Poisson; Nastoyashchee polozhenie i perspektivy na budushchee v sterilizatsii ryby putem oblucheniya; Estado Actual y Perspectivas de la Conservacion de Pescado por Irradiacion

Energy Technology Data Exchange (ETDEWEB)

Shewan, J. M. [Torry Research Station, Aberdeen, Scotland (United Kingdom)

1966-11-15

articulos empaquetados. La memoria trata con detalle del estado actual de estos y otros espectos de la irradiacion. (author) [Russian] Vse imejushhiesja v nastojashhee vremja dokazatel'stva, kazhetsja, govorjat o tom, chto sterilizacija posredstvom obluchenija pochti vseh vidov pishhevyh produktov morja ne javljaetsja prakticheskim meroprijatiem, vyzyvajushhim pojavlenie nezhelatel'nyh organolepticheskih izmenenij glavnym obrazom vo vkusovyh i aromaticheskih kachestvah prigotovlennyh produktov. S drugoj storony, mnogie vidy pishhevyh produktov morja (vkljuchaja okolo 30 vidov ryby i molljuskov) mogut vyderzhivat' pri pasterizacii dozy obluchenija ot 0,3 do 0,5 Mrad bez kakih-libo zametnyh organolepticheskih izmenenij. Bolee togo, srok hranenija obluchennyh takim obrazom produktov s tochki zrenija horoshego kommercheskogo kachestva mozhet byt' uvelichen v 1,5 i 2 raza pri temperature hranenija sootvetstvenno 40 Degree-Sign i 32 Degree-Sign po Farengejtu. Takim obrazom, tol'ko chto vylovlennye treska i piksha, sohranjajushhie horoshee kachestvo v period hranenija v techenie 9 i 12 dnej pri temperaturah 40 Degree-Sign i 32 Degree-Sign po Farengejtu, mogut posle obluchenija dozoj v 0,3 Mrad sohranjat' analogichnye kachestva posle hranenija pri jetih temperaturah v techenie, priblizitel'no, 14 i 24 dnej sootvetstvenno. Dlja poluchenija maksimal'nogo sroka hranenija naibolee podhodjashhim bylo by obluchenie na bortu rybolovnogo sudna, no tehnicheskie trudnosti takogo meroprijatija ves'ma znachitel'ny. Bol'shinstvo beloj ryby, takoj kak treska i piksha, ne dostavljaetsja na bereg nemedlenno posle vylova, a mozhet popast' tuda v predelah ot neskol'kih chasov do perioda sohranenija eju s{sup e}dobnosti, kotoryj dlja horosho zamorozhennoj treski sostavljaet okolo 17 dnej pri temperature 32 Degree-Sign po Farengejtu. Sootvetstvenno, chem dol'she ryba hranilas' na rybolovnom sudne pered razgruzkoj na bereg, tem koroche srok vozmozhnogo hranenija ee na beregu. Prinimaja vo vnimanie to

The First Two Years of Operating Experience of the Kahl Nuclear Power Station; Experience acquise pendant les deux premieres annees de fonctionnement de la centrale nucleaire de Kahl; Opyt pervykh dvukh let ehkspluatatsii atomnoj ehlektrostantsii v Kale; Experiencia adquirida en los primeros cuatro anos de funcionamiento de la central nucleoelectrica de Kahl

Energy Technology Data Exchange (ETDEWEB)

Bruchner, H. J. [Aeg-Kernenergieanlagen, Frankfurt-am-Main (Germany); Weckesser, A. [Versuchs-Atomkraftwerk Kahl Gmbh, Kahl (Germany)

1963-10-15

, une boucle experimentale destinee a l'etude de la surchauffe nucleaire. (author) [Spanish] La central de Kahl constituye la primera central nucleoelectrica europea de propiedad privada, y funciona en carga desde junio de 1961. Esta equipada con un reactor de agua hi que trabaja en ciclo indirecto por circulacion natural. Su capacidad electrica neta asciende a 15 MW y hasta febrero de 1963 habia producido 140 millones de kWh. La memoria revisara la experiencia adquirida durante su funcionamiento, ante todo con el extenso programa de ensayos sobre el comportamiento transitorio y la exploracion gamma. Presentara datos acerca del resultado que han dado en funcionamiento ciertas partes de la central, tales como el dispositivo de accionamiento de las barras de control, el sistema de purificacion de los gases de escape y la turbina. Una vez terminado el programa de ensayos, la planta se exploto en carga basica durante algun tiempo a fin de reunir datos sobre el rendimiento del combustible en la ptactica. Una vez completada esta fase, se instalara en el reactor de Kahl un circuito experimental de sobrecalentamiento nuclear. (author) [Russian] Atomnaya ehlektrostantsiya v Kale, pervaya v Evrope chastnaya atomnaya ehlektrostantsiya, ehkspluatiruetsya pod nagruzkoj s iyunya 1961 goda. Na ehlektrostantsii ustanovlen reaktor s kipyashchej vodoj, kosvennym tsiklom i estestvennoj tsirkulyatsiej. Chistaya ehlektricheskaya moshchnost' reaktora sostavlyaet 15 mgvt. Do fevralya 1963 goda kolichestvo poluchennoj ehnergii sostavilo 140 mln. kvt.ch. Rassmotren opyt ehkspluatatsii, v chastnosti rasshirennaya programma ispytanij: naprimer,povedenie reaktora pri perekhodnom protsesse i kontrol' gamma-izlucheniya. Budut predstavleny rezul'taty izucheniya ehkspluatatsionnoj kharakteristiki nekotorykh komponentov ustanovki, naprimer sistemy privoda reguliruptsikh sterzhnej, sistemy udaleniya gaza i turbiny. Posle osushchestvleniya ehtoj programmy ispytanij ustanovka v techenie nekotorogo vremeni

Treatment of solutions of fission products - Separation of caesium-137; Traitement des solutions de produits de fission - Separation du cesium-137; Obrabotka rastvorov produktov deleniya - Razdelenie tseziya-137; Tratamiento de soluciones de productos de fision - Separacion del cesio-137

Energy Technology Data Exchange (ETDEWEB)

Stiennon-Bovy, R [Centre d' Etude de l' Energie Nucleaire, Mol (Belgium); Gvion, R [Commission Israelienne de l' Energie Atomique, Tel-Aviv (Israel)

1962-01-15

nichtozhno malym dlya ikh rastvorov. Izuchaetsya zakhvat tseziya ionom ammiaka. Preimushchestvami predlagaemogo sposoba yavlyayutsya: vysokaya stepen' dezaktivatsii tseziya, prostota operativnogo sposoba s legkoj retsirkulyatsiej reaktiva, vysokij vykhod izvlecheniya tseziya i dipikrilamina, znachitel'naya kontsentratsiya aktivnosti tseziya, provedenie ehtogo sposoba pri komnatnoj temperature, vozmozhnost' ehkspluatatsii pri nepreryvnom rezhime. Izvlechenie tseziya ehtim sposobom mozhet osushchestvlyat'sya do udaleniya nekotorykh produktov deleniya. (author)

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

Change of I-V characteristics of SiC diodes upon reactor irradiation; Modification des caracteristiques I-V de jonctions p-n au SiC du fait d'une irradiation dans un reacteur; Izmeneniya kharakteristik I-V vyrashchennogo v SiC perekhoda tipa p-n posle oblucheniya ego v reaktore; Modificaciones que sufren por irradiacion en un reactor las caracteristicas I-V de uniones p-n en SiC

Energy Technology Data Exchange (ETDEWEB)

Heerschap, M; De Coninck, R [Solid State Physics Dept., SCK-CEN, Mol (Belgium)

1962-04-15

distintas procedencias. Las uniones se obtuvieron en el horno de Lely. Midieron las caracteristicas directa e inversa durante la irradiacion, y despues de esta, hasta la temperatura de 150{sup o}C. Se estan realizando mediciones hasta 500{sup o}C. Han encontrado que uno de los tipos de diodo es resistente a los neutrones del BR-1 hasta un flujo integrado de 10{sup 15} neutrones/cm{sup 2}, mientras que el otro soporta hasta 10{sup 17} neutrones/cm{sup 2}. La memoria indica los cambios de las caracteristicas, asi como los resultados de algunos experimentos de recocido. (author) [Russian] V poiskakh poluprovodnikov, kotorye mogli by byt' ispol'zovany v reaktorakh s vysokoj plotnost'yu nejtronnogo potoka dlya izmereniya raspredeleniya potokov, my obluchali v bel'gijskom reaktore BR-1 perekhody tipa p-n v SiC. Byli oblucheny dva tipa diodov SiC razlichnogo proiskhozhdeniya. EHti perekhody vyrashchivayutsya v pechi Loli. Izmeneniya pryamoj i obratnoj kharakteristik byli izmereny posle i vo vremya oblucheniya vplot' do temperatury 150{sup o}C; v nastoyashchee vremya proizvodyatsya izmereniya vplot' do temperatury 500{sup o}C. Bylo ustanovleno, chto odin tip dioda vyderzhivaet nejtronnoe obluchenie reaktora BR-1 vplot' do integrirovannogo potoka 10{sup 15} nejtronov na kv. sm, togda kak drugoj tip vyderzhivaet obluchenie vplot' do potoka 10{sup 17} nejtronov na kv. sm. Dayutsya izmeneniya kharakteristik, a takzhe rezul'taty nekotorykh ehksperimentov otzhiga. (author)

Radioinitiation of Chain Branched Reactions and its Sensitization; Amorcage sous rayonnement des reactions par ramification en chaine; sensibilisation du processus; Radiatsionnoe initsiirovanie tsennykh razvetvlennykh reaktsij i ego sensibilizatsiya; Radioiniciacion de reacciones en cadena ramificadas y medios para aumentar su sensibilidad

Energy Technology Data Exchange (ETDEWEB)

Barelko, E V; Kartashova, L I; Komarov, P N; Proskurnin, M A [Karpov Physico-Chemical Institute, Moscow, Union of Soviet Socialist Republics (Russian Federation)

1960-07-15

fondamentales de la reaction d'oxydation par radiolyse du benzene : accumulation des divers produits de la reaction, action de la temperature, de la pression, de la puissance et de la dose d'irradiation sur le processus d'accumulation des produits de la reaction. Quelques conclusions sont exposees sur le mecanisme de la reaction. Les auteurs decrivent la construction de l'installation qui fonctionne en circuit ferme. (author) [Spanish] Figuran en esta memoria los resultados de los trabajos efectuados por los autores sobre la radioiniciacion de las reacciones de oxidacion de compuestos organicos en cadenas ramificadas. Se demuestra el papel que desempenan las radiaciones como agente de iniciacion, tomando como ejemplo la oxidacion del butanol y de varios hidrocarburos no saturados. La reaccion tiene caracter autoacelerador y prosigue espontaneamente al cesar la irradiacion. Se ha estudiado detalladamente el proceso de oxidacion del benceno, compuesto que se caracteriza por una elevada resistencia a las radiaciones. Los autores han ideado un metodo para sensibilizar la radioiniciacion de la oxidacion de compuestos radioresistentes por sustancias quimicamente inertes, pero inestables frente a las radiaciones. En la memoria se examinan los principales factores de que depende la radiooxidacion del benceno, a saber, concentracion de los distintos productos de reaccion e influencia de la temperatura, de la presion, de la energia y de la dosis de radiacion en el proceso de acumulacion de esos productos. Los autores formulan tambien algunas conclusiones sobre el mecanismo del proceso y describen la construccion de la instalacion de circulacion. (author) [Russian] V doklade predstavleny rezul'taty issledovanij avtorov po radiatsionnomu initsiirovaniyu tsepnykh razvetvlennykh reaktsij okisleniya organicheskikh soedinenij. Na primere okisleniya nekotorykh nenasyshchennykh uglevodorodov i butanola pokazana rol' izlucheniya kak initsiiruyushchego agenta. Reaktsiya imeet

POISSON SUPERFISH, Poisson Equation Solver for Radio Frequency Cavity

International Nuclear Information System (INIS)

Colman, J.

2001-01-01

field specification defined by the user. PAN-T calculates the temperature distribution in the walls of a RF-cavity given the electric field at the walls, the thermal conductivity of the wall materials, and the temperature at the outer surface of the wall. TEKPLOT plots the physical boundaries and mesh resulting from a LATTICE run and equipotential or field lines generated as a result of POISSON, PANDIRA, MIRT, or SUPERFISH runs. SF01 and SHY process results from SUPERFISH runs. SF01 calculates quantities useful for a drift-tube linac. SHY calculates the value of the electric field in the TM mode over an area in the XY-plane. 2 - Method of solution: The POISSON group of codes solves Maxwell's static equations (MSE's) in integral form and in two dimensions. When the MSE's are taken together with the boundary conditions, they are equivalent to a generalized form of Poisson's equations in two dimensions. POISSON uses a successive point over-relaxation (SPOR) method to solve the equations, while PANDIRA directly solves the block tridiagonal system of difference equations, and iteration is required only for nonlinear problems. After solving the equations, both compute the derivatives of the potential, namely the fields and their gradients, and calculate the stored energy. SUPERFISH uses the same direct solution method as PANDIRA for the Helmholtz eigenvalue problem. 3 - Restrictions on the complexity of the problem: POISSON: 16000 mesh points, 30 regions; SUPERFISH: 32000 mesh points; 125 max value for k max and/or l max , 60 segments and 3 regions

P-20: Osteitis Pubisli Futbolcularda İnguinal Herni Varlığının Araştırılması

Directory of Open Access Journals (Sweden)

Ali Eraslan

2017-03-01

Full Text Available GİRİŞ: Kasık ağrıları futbolda önemli sağlık problemlerindendir. Nedenleri arasında sıklıkla kas-tendon zorlanmaları, avülsiyon kırıkları, osteitis pubis, inguinal herni (gerçek herni kesesi varlığı ve sporcu hernisi (gerçek herni kesesi yokluğu bulunmaktadır.AMAÇ: Bu çalışmada osteitis pubis tanısı almış futbolcularda eski veya mevcut inguinal herni varlığını araştırmak amaçlandı.GEREÇ-YÖNTEM: Spor hekimliği polikliniğine 2011-2016 yılları arasında kasık ağrısıyla başvurmuş ve osteitis pubis tanısı almış erkek futbolcuların arşiv kayıtları retrospektif olarak tarandı. Sporcuların demografik özellikleri, MR görüntüleri ve varsa inguinal USG tetkik sonuçları incelendi. BULGULAR: Arşiv kayıtlarından profesyonel veya rekreasyonel olarak futbol oynayan 51 osteitis pubisli sporcunun MR görüntülerine ulaşıldı. Yaş ortalaması 24.5 (±7.7 yıl bulundu. İnguinal herniyle ilişkili 8 (%15.6 osteitis pubis olgusu bulundu. 3 sporcu (%5.8 polikliniğimize başvurmadan önce inguinal herni operasyonu geçirmişti. 26 sporcuya ise kasık ağrısıyla beraber herni semptomları da (valsalva ile artan inguinal ağrı ve/veya şişlik tarifledikleri için herni muayenesi ve inguinal USG uygulanmıştı. Bunların sadece 5’i (%9.8 gerçek herni kesesi saptanarak cerrahiye sevk edilmişti. 8 olgunun 7'sinde inguinal herniyle ipsilateral osteitis pubis bulguları kontrlateraldekinden daha belirgindi.TARTIŞMA: Çalışmamızın sonuçları osteitis pubisli futbolcularda eş zamanlı inguinal herni olabileceğini ve önceden inguinal herni tamiri geçirmiş bir futbolcuda osteitis pubis gelişebildiğini göstermiştir. Bunun yanında, inguinal duvardaki defektle ipsilateral pubik ramusta daha belirgin osteitis pubis bulgularının oluşu iki patolojiye yol açan mekanizmaların ortak olabileceğine işaret etmektedir. İnguinal herninin tedavisinde cerrahi girişim esastır ve s

P-17: Profesyonel Futbolcuda Proksimal Tibiofibular Sindesmoz Yaralanması

Directory of Open Access Journals (Sweden)

Nevzad Denerel

2017-03-01

Full Text Available GİRİŞ: Tibia ve fibulayı birbirine bağlayan, interosseöz membran ve anterior, posterior tibiofibular bağlardan oluşan fibröz yapı "tibiofibular sindesmoz" olarak adlandırılır. Sindesmoz yaralanması dendiğinde genellikle, ayak bileği inversiyon torsiyonu sonrası meydana gelen üst ayak bileği yaralanmaları akla gelir. Literatür incelendiğinde tibiofibular dislokasyon olmaksızın proksimal sindesmoz bağ yaralanmasının oldukça ender rastlanan bir durum olduğu görülmektedir. Burada, Türkiye Süper Liginde mücadele eden profesyonel bir futbol oyuncusunda meydana gelmiş proksimal sindesmoz yaralanması sunulmaktadır.OLGU: 26 yaşında erkek futbol oyuncusu, maç sırasında rakibinin yaptığı müdahale sonucu oyuna devam edememiştir. İlk muayene neticesinde menisküs ve bağ testlerinin normal olduğu gözlenmiş ancak fibula başı düzeyinde ödem, palpasyon ile ağrı ve perküsyon ile tinel bulgusu saptanmıştır. Ayrıca fibula başının mobilitesinde artış olduğu gözlenmiştir. Sırasıyla bilateral diz grafisi, EMG, BT ve diz MRG tetkikleri yapılmıştır. EMG sonucunun normal olması ile superfisyal peroneal sinir yaralanması ekarte edilmiş olup görüntüleme tetkikleri neticesinde sol fibula başının sağa kıyasla posterolaterale deviye olduğu ancak disloke olmadığı, interosseöz membranda intensite değişiklikleri olduğu rapor edilmiştir. Sporcuya, fizik muayene ve radyolojik görüntüleme tetkikleri sonucunda "Proksimal Sindesmoz Sprain Evre-2" tanısı koyulmuş ve 4-6 hafta iyileşme süresi öngörülmüştür. Sporcu, rehabilitasyon süreci neticesinde 30 gün sonra takımla birlikte çalışmaya başlamıştır. TARTIŞMA: Klasik ortopedi ve spor hekimliği ders kitaplarında Proksimal tibiofibular eklem (PTFE yaralanmalarını açıklayacak spesifik klinik test ve radyolojik belirtilerle ilgili bilgi olmadığı görülmektedir. Bu nedenle oldukça ender görülen PTFE

P-10: Artroskopik meniskus tamiri geçirmiş futbolcuda kas kuvvetlendirmenin önemi: Olgu sunumu

Directory of Open Access Journals (Sweden)

Bihter Akınoğlu

2017-03-01

Full Text Available GİRİŞ: Dize yönelik yaralanmaya yol açan spor dalları içerisinde futbol ilk sırada gelmektedir. Futbolcularda diz eklemi yaralanmalarından sonra uygulanan fizyoterapi ve rehabilitasyon programı sporcunun kas kuvvetini ve performansını artırıp spora geri dönüşünü hızlandırmaktadır.AMAÇ: Artroskopik meniskus tamiri geçiren futbol sporcusuna uygulanan fizyoterapi ve rehabilitasyon programının kas kuvveti ve fonksiyonel seviye üzerine olan etkilerini değerlendirmektir.GEREÇ-YÖNTEM: 3 ay önce sağ diz artroskopik menisküs tamiri geçiren 18 yaşında aktif ve profesyonel olarak futbol oynayan erkek sporcu, sağ dizinde kuvvet kaybı şikâyetiyle kliniğimize başvurdu. Olgunun değerlendirilmesinde tedavi öncesi ve tedavi sonrasında genel kas kuvvet ölçümü ve Hamstring/Quadriceps kaslarına izokinetik kas kuvvet ölçümü yapıldı. Ayrıca günlük yaşam aktivitelerini ve fonsiyonel bağımsızlık düzeyini değerlendirmek içinde Lysholm diz skalası ve Tegner aktivite skalası kullanıldı. Rehabilitasyon programında; izokinetik kas kuvvetlendirme eğitimi ve elektroterapi uygulaması yapıldı. İzokinetik kuvvetlendirme eğitimi 60 derece/sn de 5 tekrarlık bir ısınmanın ardından, 60 derece/sn hızda 3 set 10 tekrar ve 180 derece/sn hızda 3 set 15 tekrar konsantrik/konsantrik kas kuvvetlendirme protokolü bilateral olarak uygulandı. Aynı zamanda her iki dize bilateral olarak 4 kanallı yüksek voltaj galvanik stimulasyon uygulandı. Bu tedavi programı haftada 2 kez olmak üzere toplam 6 hafta uygulandı. BULGULAR: Olgunun tedavi öncesi ve 6 haftalık tedavi sonrasındaki değerlendirme sonuçları Tablo 1 de verildi. Olgunun tedavi öncesine göre tedavi sonrasında kas kuvveti, Lysholm Diz skalası puanı, Tegner Aktivite Skalası puanı arttı. Tedavisi öncesinde her iki açısal hızda anormal seyreden H/Q oranının, tedavi sonrasında normal sınırlarda ulaştığı belirlendi

Lattice Dynamics of Magnesium; Dynamique de Reseau du Magnesium; Dinamika reshetki magniya; Dinamica Reticular del Magnesio

Energy Technology Data Exchange (ETDEWEB)

Iyengar, P. K.; Venkataraman, G.; Vuayaraghavan, P. R.; Roy, A. P. [Atomic Energy Establishment Trombay, Bombay (India)

1965-04-15

utilise les constantes de force deduites de l'experience pour calculer la distribution de frequence. (author) [Spanish] Los modos de vibracion de las redes hexagonales compactas se han analizado sobre la base de la teoria de los grupos. Los resultados se han utilizado para clasificar los fonones de algunos puntos especiales de la zona de Brillouin y para factorizar el determinante secular. Se han medido, con mayor precision que la alcanzada hasta el presente, las relaciones de dispersion de los fonones en el magnesio en dos direcciones de simetria [0001] y [0110], a la temperatura ambiente. Las mediciones se han efectuado utilizando un espectrometro triaxial y un espectrometro con 'filtro de ventana', funcionando ambos segun el modo de 'Q constante'. Los resultados se comparan con calculos basados en modelos axialmente simetricos que abarcan hasta el tercer o el cuarto atomo vecino. Se ha comprobado que este ultimo modelo se ajusta adecuadamente a los datos obtenidos. Con un modelo de fuerzas tensoriales que alcanzan hasta el cuarto atomo, se obtiene una concordancia aun mas satisfactoria. Para calcular la distribucion de frecuencias se han utilizado las constantes de fuerza deducidas del experimento. (author) [Russian] Byl proizveden gruppovoj teoreticheskij analiz vidov kolebanij v geksagonal'noj reshetke s plotnoj upakovkoj. Rezul'taty byli ispol'zovany dlja klassifikacii fononov v nekotoryh special'nyh tochkah zony Brillouina i razlozhenija vekovogo determinanta. Dispersionnye sootnoshenija dlja fononov v magnii v dvuh simmetrichnyh napralenijah [0001] i [0110] byli izmereny (pri komnatnoj temperature) bolee tochno, chem soobshhalos' ranee. Izmerenija byli proizvedeny s pomoshh'ju trehosnogo spektrometra i spektrometra s ''okonnym fil'trom''. Oba jeti spektrometra rabotali pri kolebanii s ''postojannym''. Rezul'taty izmerenij sopostavljajutsja s rezul'tatami raschetov, osnovannyh na treh- i chetyrehchlennyh aksial'no simmetrichnyh modeljah. Ustanovleno, chto

A study of the mechanism of certain heterogeneous catalytic processes using C{sup 14}-labelled compounds; Utilisation de composes marques au carbone-14 pour l'etude du mecanisme de certains processus catalytiques heterogenes; Issledovanie mekhanizma nekotorykh geterogenno-kataliticheskikh protsessov s primeneniem soedinenij, mechennykh uglerodom-14; Estudio del mecanismo de algunos procesos de catalisis heterogenea con ayuda de compuestos marcados con carbono-14

Energy Technology Data Exchange (ETDEWEB)

Isagulyants, G V; Balandin, A A

1962-03-15

An investigation is made of the method of calculating individual phase velocities for parallel, consecutive and parallel-consecutive reactions from kinetic data obtained by the use of labelled atoms. The method is used for calculating individual phase velocities in the decomposition reaction of isopropyl alcohol into vanadium trioxides, dehydrogenations of butane-butylene mixtures and dehydrations of ethyl alcohol. Compounds containing C{sup 14} were used in this study. (author) [French] Le memoire expose une methode par laquelle on calcule les vitesses a differents stades dans les reactions paralleles, consecutives et paralleles-consecutives en se servant de donnees cinetiques obtenues par l'utilisation d'atomes indicateurs. Cette methode est utilisee pour le calcul des vitesses a differents stades de la decomposition de l'alcool isopropylique par le trioxyde de vanadium, de la deshydrogenation des melanges butane-butylene et de la deshydratation de l'alcool ethylique. Pour ces travaux, on a utilise des composes contenant du carbone-14. (author) [Spanish] Se describe un metodo de calculo de las velocidades correspondientes a las distintas etapas de una serie de reacciones paralelas, consecutivas y paralelo-consecutivas, partiendo de datos cineticos obtenidos mediante atomos marcados. El metodo se aplica a la determinacion de las velocidades de las reacciones de descomposicion del alcohol isopropilico por el trioxido de vanadio, de deshidrogenacion de mezclas de butano y buteno y de deshidratacion del alcohol etilico. El trabajo se llevo a cabo con ayuda de compuestos marcados con carbono-14. (author) [Russian] Rassmotren metod rascheta skorostej otdel'nykh stadij dlya parallel'nykh, konsekutivnykh i parallel'no-konsekutivnykh reaktsij, iskhodya iz kineticheskikh dannykh, poluchennykh s primeneniem mechenykh atomov. Metod primenen k raschetu skorostej otdel'nykh stadij v reaktsii razlozheniya izopropilovogo spirta na trekhokisi vanadiya, degidrogenizatsii butan-butilenovykh smesej, degidratatsii ehtilovogo spirta. V rabote byli ispol'zovany soedineniya, soderzhashchie radiouglerod-14. (author)

Preliminary Note on the Use of Radioisotopes to Study Some Cotton-Plant Pests in Africa; Note preliminaire sur l 'utilisation des radioisotopes dans l 'etude des parasites du cotonnier en afrique; Predvaritel'nye zamechaniya o primenenii radioizotopov dlya izucheniya nekotorykh vreditelej khlopchatnika v afrike.; Nota preliminar sobre el empleo de radioisotopos en el estudio de parasitos del algodonero en africa

Energy Technology Data Exchange (ETDEWEB)

Delattre, R. [Institut de Recherches du Coton et Textiles, Paris (France)

1963-09-15

The larva of Diparopsis watersi Roth is harmful to the cotton-plant, destroying the flower and the boll. This noctuid, which is practically monophagous, passes the quiescent season either in the ground in the chrysalid-at-diapause form (from 10 November onwards) or in continuing generation (polyvoltine) on plants left standing. Laboratory studies have served to elucidate the main mechanisms initiating and terminating diapause. In the field, the rapid multiplication of the pest during the crop period is due both to univoltine individuals hatching out towards April-May and to non-diapause generations. The respective roles played by these two different sources need to be determined fairly accurately in order to decide which methods of control are appropriate: uprooting of the cotton-plant, destruction of the pupae at diapause in the ground, bringing the crop forward, etc. Radioisotope labelling of larvae coming to maturity at critical periods should make it possible to tackle this problem at the practical level. Preliminary experiments for determining simple labelling techniques have been carried out at Tikem (Republic of Chad). In a first trial, P{sup 32} in atomized solution was applied direct to the foliage of young cottonplants. Despite the effects of rain, absorption by the plant reached about 10% in a few hours. Radioactivity is not retained by various phyllophagous larvae (Sylepta derogata, Prodenia litura), but those feeding on the fruit-bearing parts of the plant (Heliothis armigera, Earias insulana, Diparopsis watersi, etc.) are easily detectable three months after the application. In a second trial, P{sup 32} and S{sup 35} were applied to old cotton-plants immediately before the natural time for Diparopsis to enter diapause. The overall findings give hope of being able to distinguish without too much difficulty, among chrysalid populations taken from the ground, those which fed on the cotton-plant before labelling, and hence which underwent a diapause. A control experiment will now be required, consisting of labelling, during the season, cotton-plants in a field where cotton was also grown the previous year; this time non-diapause chrysalids will be labelled. Similar observations are also being performed on a number of other cotton-plant pests. (author) [French] Le chenille de Diparopsis wacersi Roth est nuisible au cotonnier en detruisant fleurs et capsules. Cette noctuelle, pratiquement monophage, passe l'inter-saison, soit dans le sol sous forme de chrysalides en-diapause a partir du 10 novembre, soit par des generations continues (polyvoltines) sur les plants non arraches. Des etudes de laboratoire ont permis d'elucider les principaux mecanismes declenchant la diapause et y mettant fin. Dans la nature, les pullulations en cours de culture s'etablissent a partir d'individus univoltins venant a eclosion vers avril-mai aussi bien que des generations sans diapause; la participation respective de ces deux souches differentes devrait etre determinee assez exactement pour connaitre les moyens de lutte appropries: arrachage du cotonnier, destruction des pupes en diapause dans le sol, avancement de la campagne, etc. Le marquage par des radioisotopes des chenilles venant a maturite aux epoques critiques devrait permettre de serrer ce probleme sur le plan pratique. Des experiences preliminaires ont eu lieu a Tikem (Republique de Tchad) en vue de determiner des techniques de marquage simples. Dans un premier essai, {sup 32}P a ete applique en pulverisation aqueuse directe sur le feuillage de cotonniers jeunes. Malgre la pluie, l'absorption fut de 10% environ par la plante en quelques heures. Diverses chenilles phyllophages (Sylepta derogata, Prodenia litura) ne retiennent pas de radioactivite, mais les chenilles qui se nourrissent d'organes fructiferes (Heliothis armigera, Earias insulana, Diparopsis watersi, etc.) sont facilement detectable trois mois apres l'application. Dans un deuxieme essai, {sup 32}P et {sup 35}S ont ete appliques sur des cotonniers ages, juste avant la periode de mise en diapause naturelle de Diparopsis. Les resultats d'ensemble laissent esperer que l'on pourra sans trop de difficultes distinguer, parmi les populations de chrysalides prelevees dans le sol, celles nourries sur le cotonnier avant qu'il ne soit marque, donc qui auront subi une diapause. Une contre-experience sera ensuite necessaire; elle consistera a marquer, en cours de saison, les cotonniers d'un champ ayant deja porte la meme culture Tannee precedente, les chrysalides sans diapause etant cette fois marquees. Des observations annexes sont egalement en cours sur divers autres parasites du cotonnier. (author) [Spanish] La oruga de Diparopsis watersi Roth es perjudicial para el algodonero, pues destruye sus flores y capsulas. Este noctuido, practicamente monofago, pasa el periodo interestacional bien en el suelo en forma de crisalidas en diapausa a partir del 10 de noviembre, bien por generaciones continuas (especies que se reproducen varias veces al ano) en las plantas sin arrancar. Los estudios de laboratorio han permitido dilucidar los principales mecanismos que determinan e l comienzo y el fin de la diapausa. En la naturaleza, las pululaciones durante el cultivo provienen de individuos de una sola generacion al ano, que alcanzan la eclosion hacia abril o mayo, asi como de generaciones sin diapausa. Deberia averiguarse con suficiente exactitud el papel que desempenan estas dos cepas diferentes, para determinar los medios de lucha mas apropiados: arranque del algodonero, destruccion de las ninfas durante la diapausa en el suelo, anticipacion de la campana, etc. La marcacion radioisotopica de las orugas que alcanzan la madurez en las epocas criticas permitiria seguramente abordar este problema en el plano practico. En Tikem (Republica del Chad) se han realizado experimentos preliminares para preparar tecnicas sencillas de marcacion. En el primer ensayo se aplico {sup 32}P en pulverizacion acuosa directa sobre el follaje de algodoneros jovenes. Hay orugas filofagas (Silepta derogata, Prodenia litura) que no retienen la radiactividad, pero las que se alimentan de organos fructiferos (Heliothis armigera, Earias insulana, Diparopsis watersi, etc.) se pueden detectar facilmente tres meses despues de la pulverizacion. En el segundo ensayo se aplicaron {sup 32}P y {sup 35}S a algodoneros viejos, inmediatamente antes de comenzar el periodo de diapausa natural de Diparopsis. Los resultados obtenidos hacen pensar que no sera muy dificil distinguir, entre las poblaciones de crisalidas recogidas del suelo, las que se han nutrido en el algodonero antes de ser marcado, es decir, las que habran sufrido una diapausa. (author) [Russian] Gusenitsa Diparopsis watersi (Roth) nanosit vred khlopchatniku, unichtozhaya tsvet i korobochku. Ehta,prakticheski,monofagovaya sovka provodit mezhsezonnyj period libo v zemle v vide kukolki v sostoyanii diapauzy, nachinaya s 10 noyabrya, libo v vide novykh (polivol'tinnykh) pokolenij na ne vykopannykh iz zemli rasteniyakh. Laboratornye issledovaniya pozvolili vyyasnit' osnovnye mekhanizmy vozniknoveniya i prekrashcheniya diapauzy. V prirode intensivnoe razmnozhenie pri razvedenii kul'tur proiskhodit u odnikh osobej s odnim pokoleniem v god, vyplansivayushchikhsya k aprelyu-mayu, u vtorykh - poyavlenie pokolenij bez diapauzy; otnositel'nuyu rol' ehtikh dvukh razlichnykh vetvej osobej sledovalo by tochno opredelit' dlya vybora metoda bor'by: vykorchevka khlopchatnika, unichtozhenie kukolok v sostoyanii diapauzy v zemle, sokrashchenie srokov sel'skokhozyajstvennoj kampanii i t.d. Mechenie radioizotopami gusenits, kotorye v kriticheskij period dostigayut zrelosti, dolzhno suzit' ehtu problemu v prakticheskom plane. V Tikeme (Respublike Chad) byli provedeny predvaritel'nye opyty dlya opredeleniya prostykh metodov mecheniya. V pervom opyte byl ispol'zovan P{sup 32} pri pryamom vodnom obryzgivanii listvy molodogo khlopchatnika. Nesmotrya na dozhd', pogloshchenie rasteniem v techenie neskol'kikh chasov sostavlyalo okolo 10%. Razlichnye fillofagovye gusenitsy (Sylepta derogata, Prodenla litura) He nakaplivayut radioaktivnosti, odnako pitayushchiesya plodonosnymi organami gusenitsy (Heliothis armigera. Earias insulana, Diparopsis watersi, i t.d.) legko obnaruzhivayutsya spustya tri mesyatsa posle primeneniya ehtogo metoda. Vo vtorom opyte P{sup 35} i S{sup 35} byli ispol'zovany dlya vzroslykh kustov khlopchatnika kak raz nakanune perioda estestvennogo perekhoda Diparopsis v diapauzu. Rezul'taty pozvolyayut nadeyat'sya na to, chto udastsya bez izlishnikh trudnostej vyyavit' sredi iz{sup y}atykh iz zemli kukolok tekh, kotorye pitalis' khlopchatnikom do ego mecheniya i kotorye poehtomu projdut diapauzu. Neobkhodimo provedenie obratnoj proverki, kotoraya sostoit v tom, chtoby v techenie sezona pometit' khlopchatnik na pole, uzhe nakhodivshemsya pod ehtoj kul'turoj v proshlom godu. V dannom sluchae kukolka bez diapauzy okazyvaetsya mechenoj. V nastoyashchee vremya provodyatsya takzhe dopolnitel'nye nablyudeniya za drugimi vreditelyami khlopchatnika. (author)

S-17: Tekvando Sporcularının İzokinetik Kas Kuvveti Karakteristiğinin Belirlenmesi

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Tuğba Kocahan

2017-03-01

şık olarak normal sınırlar içinde yer alırken 240°/sn hızda eksternal rotatörler aleyhine kas dengesizliği olduğu belirlendi. Bu dengesizliğin Omuz internal ve eksternal rotatörlerinin kas lifi tiplerinin farklılıklarından kaynaklandığını düşünmekteyiz. Diz ekleminde ise hem 60°/sn’de hem de 240°/ sn hızda diz ekstansörleri aleyhine kas dengesizliği mevcut olduğu belirlenmiştir. Bu durumun yapılan sporun doğasından mı kaynaklandığı, yoksa kas kuvvet dengesizliği mi olduğu, örneklem sayısı arttırılarak spor branşına özel norm veri çalışmalarıyla belirlenmesi gerektiği sonucuna varılmıştır.

Izplatītākie zemnieku vārdi Vidzemē 17. gadsimta pirmajā pusē

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Renāte Siliņa-Piņķe

2014-11-01

ņā ir vērojama liela formu daudzveidība, kas lielākoties saistāma ar nekonsekvento agrīnās jaunaugšvācu valodas rakstību Tā drīzāk ļauj izdarīt secinājumus par pašu rakstvežu stilu nekā par formu reālo eksistenci latviešu valodā. Ļoti maz ir adaptētu formu, interesantāko materiāla daļu šajā ziņā veido sporādiskie latvisko izskaņu fiksējumi.

Critical Reflection on Teacher Training Programs in Korean Gifted and Talented Education / Kore Üstün Yetenekliler Eğitiminin Öğretmen Yetiştirme Programlarının Kritik Yansımaları

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Ho Seong Choe

2016-12-01

ında çeşitli üniversiteler ve eğitim kurumları temel, ileri düzey, yurtdışı, liderlik, uzmanlaşma ve talebe dönük çeşitli öğretmen yetiş- tirme programları geliştirmişlerdir. Bunların içerisinde en temel programlar ilk sırada yer alırken (%61.3, ardından ileri düzey programlar (%12.6 gelirken idarecilere yönelik programlar en son sırada yer almaktadır (%8.8. Toplamda 21,002 öğretmen bu tür hizmet-içi eğitim programlarından en az birine katılmış- tır. 13,928 öğretmen temel eğitim programları- na, 3,506 öğretmen ileri düzey eğitim programlarına ve 1,208 idareci ise birden fazla eğitim programına katılmışlardır. Lisans düzeyinde örgün öğretmen yetiştirme programı olmamakla birlikte, öğretmen yetiştirme programları en çok lisansüstü eğitim programlarında sunulmaktadır. Daha fazla gelişim için lisans öğrencilerine daha fazla olanak, daha fazla ileri düzey hizmet-içi eğitim programı, sanat, spor ve liderlik alanlarında daha fazla program, uzaktan eğitim programları sunularak ulusal standartların geliştirilmesi gerekmektedir. Anahtar Sözcükler: öğretmen eğitimi, Kore üstün yetenekliler eğitimi, profesyonel standartlar

The Practice of Waste Disposal in the United Kingdom Atomic Energy Authority; Methodes Employees par l'Atomic Energy Authority du Royaume-Uni pour Eliminer les Dechets Radioactifs; 041f 041e 0420 042f 0414 041e 041a 0423 0414 ; Sistemas de Evacuacion de Desechos en la United Kingdom Atomic Energy Authority

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Dunster, H. J.; Wix, L. F.U. [United Kingdom Atomic Energy Authority, Health and Safety Branch (United Kingdom)

1960-07-01

razlichnyh oblastjah. V svjazi s jetim Komissii prihoditsja reshat' voprosy udalenija razlichnyh vidov radioaktivnyh othodov v razlichnyh po harakteru rajonah. Bol'shaja chast' othodov s bol'shoj aktivnost'ju (kak v zhidkom, tak i v tverdom vide) hranitsja v special'nyh kontejnerah. Zhidkie othody s nizkoj aktivnost'ju otvodjatsja v more ili v reki, prichem kolichestvo otvodimyh othodov tshhatel'no kontrolirujutsja. Othody v tverdom vide, imejushhie nizkuju i srednjuju aktivnost', zahoronjajutsja v special'nyh rajonah v grunt ili na dne morja. V dannom dokumente rasskazyvaetsja ob ispol'zuemyh metodah udalenija othodov, privodjatsja dannye o kolichestve zhidkih i tverdyh othodov, kotorye ezhegodno udaljajutsja putem ispol'zovanija dlja jetih celej razlichnyh metodov. (author)

Isotopic Ligand Exchange of Some Hexa-Coordinated Inorganic Complexes with Halide Ions in Solution and in Crystals; Echanges Isotopiques de Coordinats de Complexes Inorganiques Hexacoordonnes Avec des Ions Halogenures en Solution et dans les Cristaux; Izotopnyj obmen ligand v nekotorykh geksakoordinirovannykh ne- organicheskikh kompleksakh s ionami galoidov v rastvore i kristallakh; Intercambio Isotopico de Ligandos de Complejos Inorganicos Hexacoordinados y Iones Haluro en Solucion y en Cristales

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Schmidt, G. B. [Institut fuer Kernchemie der Universitaet Koeln, Cologne, Federal Republic of Germany (Germany)

1965-10-15

The kinetics of isotopic exchange reactions give information about the lability of complexes in solution and about the mechanisms of substitution. The exchange of {sup 82}Br-labelled [Rh(NH{sub 3}){sub 5}Br]{sup 2+} and [Ii(NH{sub 3}){sub 5}Br]{sup 2+} complexes with Br{sup -} ions, of trans-[Rh(en){sub 2}Cl{sub 2}]{sup +} and trans- [Co(en){sub 2} Cl{sub 2}]{sup +}]+ with Cl{sup -} ions, of trans- [Co(en){sub 2}Br{sub 2}]{sup +} with Br{sup -} and of [OSCl{sub 6}]{sup 2-} and [OsI{sub 6}]{sup 2-} with Cl{sup -} and I{sup -} ions, respectively, was investigated in acid solutions. The iridium pentamminebromo complex exchanges about 60 times slower than the corresponding rhodium pentamminebromo complex. The rate constant for the Rh- complex was found to be k = (1.03 {+-} 0,02) x 10{sup -2} min{sup -1} at 100 Degree-Sign C, for the Ir-complex k{sub 100 Degree-Sign C} = 1.7 x 10{sup -4} min{sup -1}. For both complexes the exchange rate R is first-order in the complex concentration; in acid solution R is nearly independent of the bromide and hydrogen concentration as well as of the ionic strength. This indicates that the exchange takes place by a dissociation mechanism. Activation energies of 24 and 23 kcal/ mole forthe Rh- and Ir-complex, respectively, were calculated. Rate constants of the {sup 36}Cl isotopic exchange between 60 and 100 Degree-Sign C were measured for the trans- [Rh(en){sub 2} Cl{sub 2}]{sup +} complex and an Arrhenius activation energy of 25 kcal/mole was determined. Here again the increase of the rate R is of first order in the complex concentration; but it is only slightly dependent on the hydrogen and chloride concentration. The exchange seems to occur by aquation. In methanolic HCl solution the exchange rate of this complex is immeasurably slow at 60 Degree-Sign C. The halide exchanges of trans-[Co(en){sub 2} Cl{sub 2}]{sup +} and trans [Co(en){sub 2} Br{sub 2}]{sup +} were measured in methanolic solutions between 30 and 60 Degree-Sign C. Further , the halide exchange of [OsCl{sub 6}]{sup 2-} and [Osl6]{sup 2-} was investigated in hydrochloric acid and hydroiodic acid, respectively, in methanolic acid and in ethanolic acid solution. The rates measured are compared with earlier results of the isotopic exchange of the corresponding hexabromo complex. Beside these investigations of the dissolved complexes, displacement reactions of labelled cis- and trans-[Co(en){sub 2}Cl*{sub 2}] Cl and trans- [Rh(en){sub 2}Cl*{sub 2}] Cl in the lattice were studied. The half-time of the exchange for both solid isomeric Co complexes is about 4 h at 150 Degree-Sign C. For the Rh complex a half-time of about 26 h was found at 225 Degree-Sign C. Activation energies of 30-35 kcal/mole were calculated. X-ray irradiation leads to an exchange increasing with the dose. In addition, the thermal exchange of irradiated crystals is accelerated. In contrast to the ethylenediamine complexes, the solid Rh and Ir pentamminebromo bromides or chlorides exchange only very slowly by raising the temperature even to 210 Degree-Sign C. But in these solid complexes ''activated'' exchange reactions take place if the complex receives excitation energy from a nuclear process such as the {sup 80m}Br -> {sup 80}Br isomeric transition. This phenomenon was investigated in some detail. (author) [French] La cinetique des echanges isotopiques donne des renseignements sur la labilite des complexes en solution et sur les mecanismes de substitution. L'echange des complexes [Rh(NH{sub 3}){sub 5}Br]{sup 2+} et [Ir(NH{sub 3}){sub 5}Br]{sup 2+}]{sup 2+} marques au {sup 82}Br avec des ions Br{sup -}, de trans- [Rh(en){sub 2}Cl{sub 2}]+ et de trans- [Co(en){sub 2}Cl{sub 2}]+ avec des ions Cl{sup -}, de trans- [Co(en){sub 2}Br{sub 2}]{sup +} avec des ions Br{sup -} et de [OsCl{sub 6}]{sup 2-} et [Osl{sub 6}]{sup 2-} avec des ions Cl{sup -} et I{sup -} respectivement a ete etudie en solution acide. Pour le complexe de pentamminebromo-iridium, l'echange est environ 60 fois plus lent que pour le complexe correspondant de pentamminebromo-rhodium. Les constantes de vitesse pour le complexe au rhodium sont k{sub 100 Degree-Sign C} = (1,03 {+-} 0,02). 10-2 min-1 et pour le complexe a l'iridium k{sub 100 Degree-Sign C} = 1.7 * 10{sup -4} jnm{sup -1}. Pour les deux complexes la vitesse d'echange R est du premier ordre en concentration du complexe; en solution acide, R est presque independante de la concentration en bromure et en hydrogene ainsi que de la force ionique, ce qui montre que l'echange se produit par un mecanisme dissociatif. En calculant les energies d'activation pour le complexe au rhodium et pour le complexe a l'iridium, l'auteur a trouve des valeurs de 24 et de 23 kcal/ mole respectivement. Les constantes de vitesse de rechange isotopique de {sup 36}Cl entre 60 et 100 Degree-Sign C ont ete mesurees pour le complexe trans-[Rh(en){sub 2}Cl{sub 2}]{sup +} et on a determine une energie d'activation d'Arrhenius de 25 kcal/mole. La aussi, l'augmentation de la vitesse R est du premier ordre en concentration du complexe; mais il ne depend que faiblement de la concentration en hydrogene et en chlorure. Il semble que rechange se produise par <>. En solution methanolique de HCl, l'echange de ce complexe a 60 Degree-Sign C est si lent que la vitesse n'est pas mesurable. Les echanges de trans- [Co(en){sub 2}Cl{sub 2}] + et de trans- [Co(en){sub 2}Br{sub 2}]{sup +} avec l'ionhalogenure ont ete mesures en solution methanolique dans l'intervalle, de temperature comprise entre 30 et 60 Degree-Sign C. De plus, l'auteur a etudie l'echange de [OSCl{sub 6}]{sup 2-} et [OsI{sub 6}]{sup 2-} avec l'ion halogenure dans l'acide chlor- hydrique et l'acide iodhydrique en solution methanolique et ethanolique respectivement. Les vitesses mesurees ont ete comparees avec des resultats anterieurs de l'echange isotopique de l'hexabromocomplexe correspondant. En plus de ces recherches sur les complexes en solution, l'auteur a etudie les reactions de deplacement dans le reseau de cis- et trans- [Co(en){sub 2}Cl*{sub 2}]Cl marque et de trans- [Rh(en){sub 2}Cl*{sub 2}] Cl marque. Le temps de demi-echange pour les deux complexes de cobalt isomeriques solides est d'environ 4 h a 150 Degree-Sign C. Pour le complexe au rhodium, l'auteur a trouve un temps de demi-echange d'environ 26 h a 225 Degree-Sign C. Il a calcule des energies d'activation de 30 a 35 kcal/mole. Sous l'effet d'une exposition aux rayons X, l'echange augmente avec la dose. En outre, l'echange thermique des cristaux irradies est accelere. Contrairement a ce qui se passe pour des complexes del'ethylene-diamine, les bromures ou chlorures de pentamminebromo-rhodium et de pentamminebromo-iridium solides ne s'echangent que lentement, meme si on augmente la temperature jusqu'a 210 Degree-Sign Ci Mais dans ces complexes solides il. se produit des echanges 'actives' si le complexe recoit une energie d'excitation d'un processus nucleaire, comme la transition isomerique {sup 80m}Br -> {sup 80}Br. Ce phenomene est etudie assez en detail. (author) [Spanish] La cinetica de los intercambios isotopicos proporciona informacion sobre la labilidad de los complejos en solucion y sobre los mecanismos de sustitucion. Se ha investigado en solucion acida el intercambio entre los complejos [Rh(NH{sub 3}){sub 5}Br]{sup 2+} and [Ii(NH{sub 3}){sub 5}Br]{sup 2+}, maracados con {sup 82}Br, y iones Br{sup -}, entre trans -[Rh(en){sub 2}Cl{sub 2}Rh(en)){sup +} y trans- [Co(en){sub 2}Cl{sub 2}]{sup +} con iones Cl{sup -}, entre trans- trans- [Co(en){sub 2}Cl{sub 2}]{sup +} con iones Br{sup -}, y entre [OsCl{sub 6}]{sup 2-} y [Osl{sub 6}]{sup 2-} con iones Cl- y I{sup -} respectivamente. El intercambio en el complejo de pentamminobromoiridio es unas 60 veces mas lento que en el complejo correspondiente del rodio. Se ha encontrado que la constante de velocidad para el complejo de Rh es k{sub 100 Degree-Sign C} = 1.7 x 10{sup -4} min{sup -1}, y para el complejo de Ir en las mismas condiciones, 1,7 x 10{sup -4} min{sup -1}. En ambos casos, la velocidad de intercambio R es de primer orden respecto a la concentracion del complejo; en solucion acida R es casi independiente de las concentraciones de bromuro y de hidrogeno, asi como de la fuerza ionica. Ello indica que el intercambio tiene lugar por un mecanismo de disociacion. Las energias de activacion calculadas para los complejos de rodio y de iridio son, respectivamente, 24 y 23 kcal/mol. Se han medido las constantes de velocidad de intercambio isotopico de {sup 36}Cl para el complejo trans- [Rh(en){sub 2}Cl{sub 2}] entre 60 y 100 Degree-Sign C y se ha obtenido una energia de activacion de Arrhenius de 25 kcal/mol. Tambien en este caso, el incremento de la velocidad R es de primer orden con respecto a la concentracion del complejo y solo depende ligeramente de la concentracion de hidrogeno o de cloruro. Al parecer, el intercambio se produce por aquacion. La velocidad de intercambio de este complejo a 60 Degree-Sign C en solucion metanolica de HCl es tan baja que no puede medirse. Los intercambios del trans- [Co(en){sub 2}Cl{sub 2}] + y del trans- [Co(en){sub 2}Br{sub 2}]{sup +} con haluros se midieron en solucion metanolica entre 30 y 60 Degree-Sign C. Tambien se ha investigado el intercambio de haluros en el [OsCl{sub 6}]{sup 2-} y el [Osl{sub 6}]{sup 2-}, en acidos clorhidrico o yodhidrico disueltos en metanol o etanol. En la memoria se comparan las velocidades medidas con los valores hallados anteriormente para el intercambio isotopico del hexabromo complejo correspondiente. Ademas de investigar los complejos en solucion, se estudiaron las reacciones de desplazamiento en las redes cristalinas de los complejos cis- y trans- [Co(en){sub 2}Cl{sub 2}{sup *}] Cl, y trans- [Rh(en){sub 2}Cl{sub 2}{sup *}]Cl. A 150 Degree-Sign C, el tiempo de semi-intercambio para los dos complejos isomericos de Co en estado solido es de unas 4 h. Para el complejo de Rh se encontro a 225 Degree-Sign C un tiempo de semi-intercambio para los dos complejos isomericos de Co en estado solido es de mas del orden de 26 h. Se calculo que las energias de activacion son de 30 a 35 kcal/mol. La exposicion a los rayos X acelera el intercambio en forma proporcional a la dosis. Asimismo, se observa un aumento de la velocidad de intercambio termico de los cristales irradiados. Contrariamente a lo que sucede con los complejos de etilendiamina, los bromuros o cloruros de pentamminobromo, rodio y de pentamminobromoiridio en estado solido sufren un intercambio muy lento incluso elevando la temperatura a 210 Degree-Sign C. Pero si estos complejos solidos reciben energia de excitacion procedente de un proceso nuclear como la transicion isomerica {sup 80m}Br -> {sup 80}Br se producen reacciones de intercambio 'activadas'. Este fenomeno se ha investigado con cierto detalle. (author) [Russian] Kinetika reakcij izotopicheskogo obmena daet informaciju otnositel'no neustojchivosti kompleksov v rastvore i otnositel'no mehanizmov zameshhenija-. V kislotnyh rastvorah izuchali obmen mechennyh Vg{sup 82} kompleksov [Rh (NH{sub 3}){sub 5}Vg]{sup 2+} i [ier(NH{sub 3}){sub 5}Br]{sup 2+} s ionami Vg{sup -}, trans - [ Rh (en){sub 2}Cl{sub 2}]+ i trans - [ So(ep){sub 2}Sl{sub 2} ]+ s ionami Sl i trans [ So(ep){sub 2}Vg{sub 2} ] + s Vg{sup -} i [OsCl{sub 6}]{sup 2-} i [OsI{sub 6}]{sup 2-} s ionami SG{sup -} i 1{sup -} sootvetstvenno. Obmen v komplekse pentaminebromoiridium proishodit priblizitel'no v 60 raz medlennee, chem v sootvetstvujushhem komplekse pentamine- bromorodij. Bylo ustanovleno, chto postojannye skorosti dlja Rh-kompleksa sostavljajut pri 100 Degree-Sign S k = (1,03{+-}0,02) * 10{sup -2} min{sup -1} . Dlja Ir - kompleksa k{sub 100 Degree-Sign C} = 1,7 * 10{sup -4} min{sup -1}. Dlja oboih kompleksov skorost' obmena RnpH koncentracii kompleksa predstavljaet soboj velichinu pervogo porjadka. V kislotnyh rastvorah R pochti ne zavisit ot koncentracii bromida i vodoroda, a takzhe ot ionnoj nasyshhennosti. Jeto ukazyvaet na to, chto obmen imeet mesto s pomoshh'ju mehanizma dissociacii. Byli rasschitany jenergii aktivacii, kotorye sostavili dlja Rh-kompleksa i Ir-kompleksa sootvetstvenno 24 i 23 kkal/mol'. Izmerjalis' postojannye skorosti izotopicheskogo obmena Sl{sup 36} v diapazone temperatur 60-100 Degree-Sign S dlja trans-[Rh(en){sub 2}Sl{sub 2} ]{sup +} -kompleksa, i bylo opredeleno, chto jenergija aktivacii Arheniusa sostavljaet 25 kilokall/mol'. V dannom sluchae snova imeet mesto uvelichenie skorosti R pervogo porjadka v kompleksnoj koncentracii, odnako ona lish' neznachitel'no zavisit ot koncentracii vodoroda i hlorida. Obmen, po-vidimomu, proishodit putem gidratacii. V metanolicheskom rastvore NHC1 skorost' obmena jetogo kompleksa javljaetsja neizmerimo medlennoj pri 60 Degree-Sign S. Galoidnye obmeny trans - [ So(ep){sub 2}Sl{sub 2}]{sup +} i trans - [ So(ep){sub 2}Vg{sub 2}]{sup +} izmerjalis' v metanolicheskih rastvorah pri temperaturah ot 30 do 60 Degree-Sign S. Dalee, obmen galoidov [OsCl{sub 6}]{sup 2-} i [ Osl{sub 6}]{sup 2-} izuchalsja sootvetstvenno v soljanoj kislote i iodistovodorodnoj kislote, v metanolicheskoj kislote i jetanolicheskoj kislote. Izmerennye znachenija skorosti sravnivajutsja s bolee rannimi rezul'tatami izotopicheskogo obmena sootvetstvujushhego geksabromokompleksa. Pomimo jetih issledovanij rastvorennyh kompleksov, izuchalis' reakcii zameshhenija siz - i trans -[ Co(en){sub 2}Cl{sub 2}]S i trans - [Rh(en){sup 2} Cl] Cl v reshetke. Poluperiod obmena dlja oboih tverdyh izomernyh So-kompleksov sostavljaet priblizitel'no 4 chasa pri 150 Degree-Sign S. Bylo ustanovleno, chto pri 225 Degree-Sign S poluperiod Rh - kompleksa sostavljaet priblizitel'no 26 chasov . Rasschityvali razmery jenergii aktivacii - 30 - 35 kilokal/mol' . Obluchenie rentgenovskimi luchami privodit k uvelicheniju obmena s uvelicheniem doz. Krome togo, uskorjaetsja teplovoj obmen obluchennyh kristallov. V protivopolozhnost' kompleksam jetilendiamina tverdye Rh- i Ir - pentaminebromobromidy ili hloridy obmenivajutsja lish' ochen' medlenno v rezul'tate povyshenija temperatury vplot' do 210 Degree-Sign S. Odnako v jetih tverdyh kompleksah proishodjat ''aktivirovannye'' reakcii obmena, esli kompleks poluchaet energiju vozbuzhdenija ot jadernogo processa, naprimer ot izomernogo perehoda Br{sup 80m} -> Br{sup 80}. Jeto javlenie dovol'no podrobno izuchalos'. (author)

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

Bioelectric and unidirectional flux measurements were made by methods previously reported. Rats and dogs were exposed to fast neutron and to 250 kVp X-irradiation (rats) or to 1000 kVp X-irradiation (dogs). Animals were exposed bilaterally to the whole body and depth dosimetry evaluated in each case. In the rat, seven days after irradiating, bioelectric activity is markedly reduced from normal in stomach but not at the lower gastrointestinal level. An RBE value of 2-3 can be established for delayed reduction in gastric bioelectric activity, and this effect is readily demonstrated at neutron doses of 160 rad (1st collision). In the dog, three days after irradiating, the unidirectional transfer rates from plasma-to-lumen are decreased for sodium and for water. This occurs after X-irradiation at 1200 r (air dose) and after neutron irradiation at either 300 rad or 600 rad (1st collision). However, at 600 r X-irradiation doses (air) these transfer rates do not show a decrease, and tend in the opposite direction. An RBE value lying between 2 and 6 can be inferred for the delayed reduction in plasma-to-lumen transfers. The electrogenic mechanism in rat stomach as here studied shows sodium-ion specificity, unlike that in frog stomach. Potentials as measured in vitro agree with those measured in vivo, and they are unaffected except by metabolic poisoning or sodium replacement. Contrasting with bioelectric parameters flux determinations are a more specific measurement; however marked biological variability limits their utility. Plasma- to-lumen unidirectional fluxes show a consistent pattern of change with respect to irradiation, indicative of decreased permeability at the higher irradiation doses. (author) [French] Les auteurs ont utilise des methodes deja decrites pour determiner l'activite bioelectrique et mesurer des cornants unidirectionnels. Des rats et des chiens ont ete exposes a des neutrons rapides et a des rayons X de 250 kV-crete et de 1000 kV-crete respectivement. Les auteurs ont evalue, dans chaque cas, la dose profonde absorbee par les animaux dont le corps entier avait ete expose de deux cotes. Chez le rat, sept jours apres l'exposition, l'activite bioelectrique se trouve sensiblement reduite dans l'estomac, mais non pas au niveau inferieur de l'appareil gastro-intestinal. On peut donner a l'EBR une valeur de 2 a 3 pour la reduction tardive de l'activite bioelectrique de l'estomac; cet effet peut etre mis en evidence pour des doses de neutrons de 160 rad (premiere collision). Chez le chien, trois jours apres l'exposition, les taux de transport unidirectionnel plasma-paroi du vaisseau diminuent pour le sodium et pour lreau. Cette diminution se produit apres exposition a une dose de 1200 rad de rayons X (dose dans l'air) et apres exposition aux neutrons, soit a une dose de 300 rad, soit a une dose de 600 rad (premiere collision). Toutefois, pour 600 rad de rayons X (dans l'air), ces taux de transport n'accusent pas de diminution, et ont au contraire tendance a augmenter. On peut par deduction donner a l'EBR une valeur comprise entre 2 et 6 pour la reduction tardive des transports plasma-paroi du vaisseau. Contrairement a celui de l'estomac de la grenouille, le mecanisme electrogenique de l'estomac du rat presente, d'apres les etudes faites par les auteurs, une specificite pour l'ion sodium. Les potentiels mesures in vitro sont en bon accord avec ceux qui sont mesures in vivo, et ils ne sont affectes que par l'empoisonnement metabolique ou le remplacement du sodium. Contrairement a la determination des parametres bioelectriques, celle des courants est une mesure plus specifique; toutefois, si les conditions biologiques sont nettement differentes, son utilite est limitee. Les courants unidirectionnels plasma-paroi du vaisseau varient d'une maniere reguliere en fonction de l'irradiation, la permeabilite etant reduite pour les doses d'irradiation elevees. (author) [Spanish] Los autores han descrito anteriormente los metodos que aplicaron para efectuar determinaciones bioelectricas y de flujos unidireccionales. Expusieron ratas y perros a neutrones rapidos y a rayos X de 250 kVp (ratas)y de 1000 kVp (perros). Los animales fueron sometidos a una exposicion bilateral de cuerpo entero y en cada caso se determino la dosis profunda. En la rata, a los siete dias a contar de la irradiacion, la actividad bioelectrica en el estomago se reduce notablemente con respecto a la normal, pero no ocurre lo mismo en los tramos inferiores del conducto gastrointestinal. Puede asignarse un valor comprendido entre 2 y 3 a la EBR correspondiente a la reduccion diferida de la actividad bioelectrica gastrica y este efecto se comprueba facilmente con dosis neutronicas de 160 rad (primer choque). En el perro, tres dias despues de la irradiacion, las velocidades de transporte unidireccional del plasma al lumen se reducen, tanto para el sodio como para el agua. Este efecto se observa despues de aplicar 1200 r de rayos X (dosis en el aire) y de dosis neutronicas de 300 rad o bien de 600 rad (primer choque). En cambio, con dosis de 600 r de rayos X (en el aire), dichas velocidades de transporte no disminuyen y se manifiesta la tendencia opuesta. De la reduccion diferida de los transportes del plasma al lumen puede deducirse que el valor de la EBR esta comprendido entre 2 y 6. El mecanismo electrogenico en el estomago del raton, segun estos estudios, posee especificidad con respecto al ion sodio, a diferencia de lo que ocurre en la rana. Los potenciales in vitro coinciden con los determinados in vivo y solo son afectados por el envenenamiento metabolico o la sustitucion del sodio. Comparadas con las mediciones de los parametros bioelectricos, las determinaciones de flujos son mas especificas; sin embargo, su acentuada variabilidad biologica limita su utilidad. En los flujos unidireccionales, del plasma al lumen, se observa una modalidad de alteracion constante en funcion de la irradiacion, que indica que la 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 pronicaemosti pri naibolee vysokih dozah obluchenija. (author)

Radioactive Metrology Methods in the USSR; Methodes de metrologie de la radioactivite en URSS; Metody metrologii radioaktivnosti v SSSR; Metodos de Metrologia de la Radiactividad Aplicados en la Union de Republicas Socialistas Sovieticas

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Aglintsev, K K; Bochkarev, V V; Grablevskij, V N; Karavaev, F M

1960-06-15

actividad de estos patrones son 10{sup -11} y 5 equivalentes gramo del Ra, respectivamente . Las fuentes {gamma} de control se preparan partiendo de los mismos radionuclidos que las fuentes y modelo. Sus actividades abarcan un intervalo muy amplio y las fuentes presentan formas y dimensiones sumamente diversas. Por ultimo, se utilizan dos clases de fuentes neutronicas modelo Ra-{alpha}-Be (con un contenido de 1 a 1000 mg de Ra) y Pu-{alpha}-Be (conteniendo de 0.01 a 15 g de Pu). Las fuentes Ra-{alpha}-Be consisten en una mezcla comprimida de RaBr{sub 2} y de Be en polvo, siendo la razon ponderal Ra/Be igual a 1/6. En cuanto a las fuentes Pu-{alpha}-Be, se preparan con una aleacion (PuBe{sub 13}) de estos dos metales. (author) [Russian] Avtory opisyvayut metody, primenyaemye v SSSR, i, v chastnosti, v institute metrologii im. Mendeleeva (Leningrad) dlya vosproizvodstv a pri pomoshchi standartnykh apparatov edinits izmereniya, ispol'zuemykh v radioaktivnosti (kyuri, gramm-ehkvivalen t radiya, rentgen, rad). Dlya radionuklido v v Sovetskom Soyuze proizvodyatsya istochnikiehtalony dvukh vidov: 1. Model'nye istochniki dlya sravnitel'nog o ehtalonirovani ya drugikh radioaktivnykh preparatov, a takzhe dlya kalibrovki radiometricheski kh priborov i kontrol'nykh priborov za izlucheniem; 2. Kontrol'nye istochniki, sluzhashchie isklyuchitel'n o dlya proverki raboty i kontrolya za vosproizvodimost' yu ukazanij izmeritel'ny kh priborov. Model'nye a-istochniki prigotovlyayuts ya pri pomoshchi ehlektrolitiche - skogo osazhdeniya na platine dolzhnym obrazom vybrannykh izluchatelej (estestvennyj uran, uran-233, plutonij-239, ameritsij-241). EHti istochniki mogut obespechivat' aktivnost' ot do 10{sup 6} raspadov v minutu. Kontrol'nye {alpha}-istochniki prigotovlyayuts ya putem ehlektroliticheskog o osazhdeniya plutoniya-239 v vide sloya s plotnost'yu ot 3 X 10-{sup 9} do 0,7 mg/em2, chto sootvetstvuet aktivnosti ot 10 do 10{sup 8} raspadov v minutu. Model'nye {beta

Application of Nuclear Radiation to Textile Materials and Processes. Radiation-induced graft copolymerization of vinyl monomers and fibrous polymers; Applications des rayonnements aux textiles. Formation radiochimique de copolymeres ''greffes'' par l'action de monomeres vinyliques sur des polymeres en fibre; Primenenie yadernogo izlucheniya v tekstil'noj promyshlennosti. Obrazovanie privitykh sopolimerov iz vinilovykh monomerov i voloknistykh polimerov pod dejstviem izlucheniya; Aplicaciones de las radiaciones nucleares a los procesos y materiales textiles. Copolimerizacion por injerto radioinducida de monomeros vinilicos y de polimeros fibrosos

Energy Technology Data Exchange (ETDEWEB)

Armstrong, Jr., A. A.; Rutherford, H. A. [University of North Carolina at Raleigh, NC (United States)

1963-11-15

que la modificacion de las propiedades de la fibra mediante el procedimiento descrito podria aprovecharse en el terreno comerical de encontrarse procedimientos que permitan aumentar la velocidad de difusion del monomero en la estructura de la fibra. (author) [Russian] Razrabotana standartnaya metodika radiatsionnoj privivki letuchikh vinilovykh monomerov k voloknistym polimeram. Ehta metodika sostoit v vvedenii organicheskogo soedineniya v parovoj faze; protsess osushchestvlyaetsya ili putem odnovremennogo oblucheniya ili predvaritel'nym oblucheniem ot istochnika Co''6''0. Issledovany sistemy, povyshayushchie skorost' privitoj sopolimeriehatsii. Ustanovleno, chto mozhno vvodit' znachitel'nye kolichestva nekotorykh monomerov, ne vyzyvaya radiatsionnogo povrezhdeniya voloknistogo substrata. Imenno te voloknistye materialy, kotorye sravnitel'no neustojchivo reagiruyut na radiatsiyu naibolee legko prisoedinyayut vinilovye soedineniya. K takim materialam otnosyatsya tsellyulozy, slozhnye ehfiry tsellyulozy, poliamidy i polipropilen. Prisoedinenie monomera k voloknistomu substratu, ochevidno, proiskhodit po svobodno-radikal'nomu mekhanizmu, i, kak uzhe ukazyvalos' vyshe, mozhno snachala obluchit' volokno a zatem provodit' privivku, podvergaya obluchennyj material vozdejstviyu parov mono- mera. Predprinimalis' popytki vyyasnit' dlitel'nost' sushchestvovaniya svobodnykh radikalov i, khotya dovol'no trudno poluchit' tochnye dannye, bylo pokazano, chto svobodnye radikaly prodolzhayut sokhranyat'sya v nekotorykh voloknakh spustya 15 - 20 chasov posle oblucheniya, dazhe pri komnatnoj temperature. Predvaritel'nye opytnye dannye takzhe navodyat na mysl' o tom,chto pri posleradiatsionnom privivanii monomer diffundiruet k svobodno-radikal'nym tsentram s razlichnymi skorostyami v raznykh voloknakh. Volokno khlopka, modifitsirovannoe vvedeniem v ego sostav poliakrilonitrila, ustojchivo k dejstviyu mikroorganizmov. Vvedenie 3,5%-nogo poliakrilonitrila pozvolyaet materialu sokhranyat

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

entonces de comportarse como reactor de agua hirviente de ciclo directo; en cierto modo, funciona como reactor de ciclo doble y circulacion natural. (author) [Russian] 25 maya 1962 goda Argonnskaya natsional'naya laboratoriya poluchila razreshenie KAEH SSHA na ehkspluatatsiyu reaktora EBWR na moshchnosti 100 mgvt. Administrativnoe razreshenie na ehkspluatatsiyu reaktora bylo predostavleno sistemoj garantij. Mezhdunarodnogo agentstva po atomnoj ehnergii 11 iyulya 1961 goda. 15 noyabrya 1962 goda byl dostignut uroven' moshchnosti v 100 mgvt. 6 dekabrya 1962 goda ehksperimental'naya programma byla zakonchena. Odnoj iz osnovnykh tselej ee byla tshchatel'naya proverka reaktora dlya polucheniya dannykh i informatsii rabochej kharakteristiki ehtogo tipa reaktora. Ehta programma byla pervoj programmoj takogo roda i pervoj vypolnennoj programmoj. Dlya polucheniya nuzhnykh dannykh neobkhodimo bylo razrabotat' mnogie novye pribory. TSel' byla dostignuta, polucheno mnogo novykh dannykh o rabochej kharakteristike kipyashchego reaktora s estestvennoj tsirkulyatsiej. Tak,naprimer, poluchena informatsiya otnositel'no skorosti potoka tsirkulyatsii v zamknutom tsikle, predelov separatsii zhidkogo para (vydelenie para v osadok v spusknoj trube i unos zhidkosti ehflu- entom para), nedogreva, lokalizatsii dejstvitel'noj poverkhnosti razdela v reaktore i ee svyazi s urovnem vodnoj kolonki, skorosti razrusheniya para v spusknoj trube, pustotnykh koehffitsientov, reaktivnoj sposobnosti H{sub 3}BO{sub 3}, temperaturnykh koehffitsientov, ispol'zovaniya sterzhnej iz bora dlya tselej kontrolya, ispol'zovaniya svezhikh toplivnykh ehlementov, peredatochnykh funktsij,analiza shuma, nekotorykh izmerenij potoka, stabil'nosti i t.d. Krome togo, byli polucheny dannye o povedenii i tselostnosti nekotorykh reaktornykh komponentov i sistem, takikh, kak bornokislaya kontrol'naya reaktsiya, urovni radiatsii, raspredelenie produktov korrozii, vykhod iz stroya oborudovaniya, toplivo i reguliruyushchie sterzhni i t

Używki w ciąży – kofeina = Stimulants in pregnancy – caffeine

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Agnieszka Konstancja Pawłowska-Muc

2015-06-01

3 Independent Obstetric Skills Workshop, Medical University of Lublin, ul. Staszica 4/6   Adres do korespondencji: mgr piel. Agnieszka Konstancja Pawłowska-Muc Ośrodek Kształcenia Podyplomowego Pielęgniarek i Położnych Radomski Szpital Specjalistyczny im. dr Tytusa Chałubińskiego w Radomiu, ul. Lekarska 4 tel. 48  3615616; fax: 48 3615437 e-mail: agmich@vp.pl   Używki w ciąży - kofeina Streszczenie Wprowadzenie. Kofeina należy do substancji psychoaktywnych, ogólnodostępnych i najbardziej rozpowszechnionych na całym świecie. Jej wpływ na zdrowie kobiet, przebieg ciąży i rozwój płodu jest od lat przedmiotem wielu dyskusji, sporów i dociekań naukowych. Cel pracy. Przegląd piśmiennictwa na temat wpływu działania kofeiny na organizm kobiety oraz skutków jej spożywania w okresie ciąży i laktacji. Skrócony opis stanu wiedzy. Działanie kofeiny na organizm kobiety oraz jej wpływ na przebieg ciąży i zdrowie dziecka nie zostały dotychczas w pełni poznane. Znajduje się ona w wielu produktach, a to sprawia, że jej całkowite, dzienne spożycie jest trudne do oceny.             Podsumowanie. Z przeglądu piśmiennictwa wynika, że duży odsetek kobiet ciężarnych ma zwyczaj codziennego picia herbaty i/lub kawy z kofeiną. Zakres embriotoksycznego działania tej substancji zależy od jej dawki, częstości spożywania oraz stanu zdrowia kobiety ciężarnej. Stanowiska  autorów, co do stosowania napojów zawierających kofeinę w tym czasie, a także ich skutków, są podzielone. Większość jednak podziela pogląd, iż w ciąży i w okresie laktacji należy ograniczyć, a najlepiej zaniechać, spożywanie takich napojów. Zasadne jest zatem, aby działania promujące i wspierające zdrowy styl życia kobiet w wieku rozrodczym dotyczyły, między innymi, tej kwestii. Słowa kluczowe: kofeina, ciężarna, zdrowie, ciąża, płód.   Stimulants in pregnancy - caffeine Summary Introduction. Caffeine belongs to the group of

Anabolik Steroidlerin Genotoksik ve Sitotoksik Etkilerinin İnsan Periferal Lenfosit Kültüründe Mikronükleus Test Tekniğiyle Araştırılması

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Deniz ALTUN ÇOLAK

2016-10-01

Full Text Available Özet. Spor tarihi boyunca genç yaştaki bir çok sporcunun doping amacıyla anabolik-androjenik steroidleri yoğun olarak kullandığı bilinmektedir. Bu çalışmayla, kullanımı yasaklanmış olsa da yapılan araştırmalarda illegal olarak halen sıkça kullanılmakta olan Nandrolone Decanoate (Deca-durabolin® ve Stanozolol (Winstrol doping maddelerinin olası genotoksik, mutajenik ve sitotoksik etkilerinin insan kan kültüründe in vitro mikronükleus testi ile belirlenmesi amaçlanmıştır. Bu amaçla doping maddelerinin farklı konsantrasyonları (1, 10, 25, 50, 75 ve 100 mM hazırlanmış ve kan kültürüne uygulanmıştır. Genotoksik etki için mikronükleus frekansları, sitotoksik etki için ise Nükleer Bölünme İndeksi (NBİ hesaplanmıştır. Elde edilen veriler, çözücü olarak kullanılan dimetil sülfoksit (DMSO ile hazırlanan negatif kontrol grubuyla ve genotoksik etkisi çok iyi bilinen Etil metansülfonat (EMS ile hazırlanmış pozitif kontrol grubuyla karşılaştırılmıştır. Bu sonuçlara göre; çalışmamızda kullandığımız doping maddelerinden Nandrolone Decanoate özellikle son iki konsantrasyonda (75 ve 100 mM  insan periferal lenfositlerinde mikronükleus frakansını istatistiksel olarak anlamlı (p< 0,05 bir şekilde artırmıştır. Ayrıca NBİ oranlarına bakıldığında da özellikle son iki konsantrasyonda kontrol grubuna göre önemli düşüşler tespit edilmiştir. Bununla birlikte diğer doping maddesi olan Stanozolol ise sadece son konsantrasyonda (100 mM anlamlı artışlara neden olmuşken NBİ değerini etkilememiştir. Tüm elde ettiğimiz sonuçlardan her iki doping maddesinin de yüksek konsantrasyonlarda genotoksik ve sitotoksik etkiler yaratabileceği bu nedenle kullanımlarının tehlikeli olabileceği sonucuna ulaşılmıştır.Anahtar Kelimeler: Genotoksisite, Lenfosit kültürü, Mikronükleus, Nandrolone Decanoate, Stanozolol Abstract. Throughout the sports history

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

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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

Use of radioisotopes in the systematic analysis of impurities in metals of very high purity; Application des radioisotopes a l'analyse systematique des impuretes dans les metaux de tres haute purete; Primenenie radioizotopov v sistematicheskom analize primesej v vysokochistykh metallakh; Aplicacion de los radioelementos al analisis sistematico de las impurezas en los metales muy puros

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Albert, Philippe; Gaittet, Jean [Centre d' Etudes de Chimie Metallurgique (C.N.R.S.), Vitry (France)

1962-01-15

insistiran especialmente en los resultados y en las consecuencias de los analisis por ellos realizados. (author) [Russian] tsentratsiya primesej dostigaet poryadka 10{sup -6} - 10{sup -8}. EHti metally izgotovlyayutsya v nebol'shikh kolichestvakh, i ochen' vazhno umet' tochno opredelyat' kolichestvennym analizom ochen' bol'shoe chislo ehlementov v odnoj probe. Sistematicheskij analiz alyuminiya i zheleza pri pomoshchi nejtronnogo oblucheniya pozvolil nam proizvesti kolichestvennyj analiz 45 ehlementov v odnoj probe poryadka odnogo gramma. EHtot analiz bol'shogo chisla primesej stal vozmozhnym lish' blagodarya kaskadnomu razdeleniyu poluchivshikhsya vo vremya oblucheniya radioizotopov na bolee chem 40 analiticheskikh fraktsij. Zatem bol'shinstvo radioizotopov izoliruetsya v chistom vide radiokhimicheskim putem, a ikh identifikatsiya dostigaetsya putem odnovremennogo izucheniya perioda ikh radioaktivnogo raspada i spektra ikh gamma-izlucheniya. Odnako, dopolnyaya ehtot sistematicheskij analiz k olichestvennym analizom nekotorykh ehlementov v otdel'noj probe, mozhno opredelyat' a Ktivatsionnym metodom okolo 60 ehlementov, libo obluchaya ikh nejtronami (sera, fosfor, khlor, barij...), libo pri pomoshchi reaktsij, vyzvannykh nejtronami (uglerod i bor). V nashem doklade my namereny osobo ostanovit'sya na rezul'tatakh i posledstviyakh nashikh analizov. (author)

Self-diffusion in volume and at the grain-boundaries of gamma-iron of high purity (99.99%); Autodiffusion en volume et aux joints de grains du fer gamma de haute purete (99,99 %); Ob'emnaya samodiffuziya i samodiffuziya na poverkhnosti granul zheleza u vysokoj chistoty (99,99%); Autodifusion en volumen y en los limites intergranulares del hierro gamma de elevada pureza (99,99 por ciento)

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Lacombe, P; Guiraldenq, P; Leymonie, C [Centre de Recherches Metallurgiques, Ecole Nationale Superieure des Mines, Paris (France)

1962-01-15

1260 Degree-Sign y 918 Degree-Sign C, y de las constantes de autodifusion en las uniones intergranulares entre 1020 Degree-Sign y 918 Degree-Sign C. (author) [Russian] Vvidu trudnostej, s kotorymi vstretilis' pri tochnom izmerenii koehffitsientov samodiffuzii kak vnutri, tak i mezhdu samimi granulami v nekotorykh intervalakh temperatury, kogda sosushchestvuyut oba yavleniya, my byli vynuzhdeny pribegnut' k obychnomu metodu deleniya na chasti. V samom dele my uzhe ustanovili, chto dlya vyazkogo polutverdogo tela posle diffuzii kontsentratsiya radioaktivnykh atomov c (x{sub n}) na rasstoyanii x{sub n} ot pervonachal'nogo radioaktivnogo osadka yavlyaetsya prostoj funktsiej obshchej aktivnosti, kotoraya ostaetsya v obraztse posle abrazii na glubinu x{sub n}. EHtot vyvod yavlyaetsya rezul'tatom obobshcheniya formuly Gruzina, kotoraya do nastoyashchego vremeni primenyalas' tol'ko v ob{sup e}mnoj diffuzii. Takim obrazom my pokazali, chto mozhno putem izmereniya obshchej aktivnosti, ostayushchejsya v zavisimosti ot glubiny proniknoveniya razlichat' dolyu aktivnosti, kotoraya proiskhodit iz-za ob{sup e}mnoj samodiffuzii ot aktivnosti, proiskhodyashchej iz-za mezhgranulovoj samodiffuzii. Odnako tsennost' metoda zaklyuchaetsya v tom, chtoby prosledit' dal'she na tom zhe samom obraztse perekhod ob{sup e}mnoj samodiffuzii v mezhgranulovuyu samodiffuziyu. My primenili ehtot novyj metod dlya izmereniya konstant ob{sup e}mnoj samodiffuzii v zheleze u pri temperature 1260 Degree-Sign i 980 Degree-Sign C, a takzhe samodiffuzii na poverkhnosti granul pri temperature 1020 Degree-Sign i 918 Degree-Sign C. (author)

Some symmetrical halogen and methoxy exchange reactions in aromatic systems; Quelques reactions symetriques d'echanges d'halogenes et de groupes methoxyles dans les composes aromatiques; Simmetricheskie reaktsii s galoidnym i metoksidnym obmenom v aromaticheskikh sistemakh; Algunas reacciones simetricas de intercambio de halogenos y grupos metoxilo en compuestos aromaticos

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Broadbank, R W.C.; Harhash, A H.E.; Kanchanalai, S [Leicester College of Technology and Commerce, Leicester (United Kingdom)

1962-03-15

. Los autores describen seguidamente la preparacion de ciertos compuestos nitrometoxi- aromaticos marcados con carbono-14 en el grupo metoxilo. Estudiaron reacciones simetricas de intercambio de grupos metoxilo entre estos compuestos e iones metoxilo disueltos en metanol. Despues ele separar los reactivos (en muestras de la meczla tomada a intervalos adecuados) por extraccion con tolueno y agua, recuperaron los compuestos aromaticos y determinaron sus actividades especificas por recuento mediante un fosforo ele plastico. Al analizar los resultados experimentales, dedican particular atencion a la influencia ejercida por la fuerza ionica sobre la velocidad especifica de reaccion. Establecen comparaciones con los efectos ele la fuerza ionica observados en las reacciones simetricas nucleofilicas biomoleculares en un atomo de carbono (alifatico) saturado, y mencionan algunas otras reacciones de sustituciones nucleofilicas en compuestos aromaticos. (author) [Russian] Izotopnye indikatory nezamenimy pri izuchenii kinetiki reaktsij s nukliofil'nosimmetricheskim zameshcheniem pri aromaticheskom atome ugleroda. Obmen joda mezhdu jodo-nitro-aromaticheskimi soedineniyami i ionami jodida v atsetonovom ili metanolovom rastvore izuchalsya kak s kachestvennoj, tak i kolichestvennoj tochek zreniya posredstvom mecheniya ionov jodida jodom-131. U smesi reaktsii pri opredelennykh intervalakh vremeni bralis' obraztsy, dva reaktanta razdelyalis' toluolovodnoj ehkstraktsiej, a khod reaktsii opredelyalsya beta-otschetom zhidkostnogo schetchika Gejgera-Myullera. Izmereniya rasprostranyalis' takzhe na ''svobodnye ot nositelya'' kontsentratsii ionov jodida. Privoditsya opisanie prigotovleniya nekotorykh nitro-metoksi-aromaticheskikh soedinenij, mechennykh uglerodom-14 v metoksinovoj gruppe. Privoditsya issledovanie reaktsij simmetricheskogo metoksinovogo obmena ehtikh soedinenij s metoksidnymi ionami v metanovom rastvore. Posle otdeleniya reaktantov (iz obraztsov smesi reaktsii, vzyatykh cherez

The production of radioisotopes with a betatron using an internal bombarding technique; Production de radioisotopes par bombardement interne dans un betatron; Proizvodstvo radioizotopov s pomoshch'yu betatrona s ispol'zovaniem metoda vnutrennej bombardirovki; Obtencion de radioisotopos por bombardeo interno en el betatron

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Morinaga, H [Department of Physics, Tohoku University, Sendai (Japan)

1962-01-15

pueden servir para la obtencion de isotopos. Con frecuencia es conveniente emplear isotopos de periodo corto debido a su rapida desintegracion, al hecho de que emitan radiaciones de alta energia y a la facilidad con que pueden obtenerse incluso sin necesidad de poseer conocimientos especiales. (author) [Russian] Razrabotan i uspeshno ispol'zuetsya novyj metod proizvodstva radioizotopov s vysokoj udel'noj aktivnost'yu s pomoshch'yu betatrona. Podvergaemye aktivatsii materialy pomeshchayutsya vnutr' vakuumnoj kamery betatrona v kontse slepogo tsilindra, ustanovlennogo izvne; takim obrazom, proby podvergayutsya bombardirovke pri odnoj atmosfere neposredstvenno za mishen'yu tormoznogo izlucheniya, gde intensivnost' radiatsii chrezvychajno vysoka. Aktivnost' pri nasyshchenii Cu{sup 62}, vyzvannaya v nebol'shoj chastitse medi, prevyshala 1 millikyuri, i poluchaemaya naivysshaya udel'naya aktivnost' priblizitel'no v 500 raz prevyshala aktivnost', vyzvannuyu v obychnom ustrojstve. Do sikh por ehtot metod vnutrennej misheni ispol'zuetsya tol'ko dlya rabot v oblasti yadernoj spektroskopii; bylo ustanovleno vosem' novykh vidov radioaktivnykh izotopov (Co{sup 63}, Ga{sup 75}, As{sup 81}, In{sup 121}, In{sup 123}, Tm{sup 173}, Tm{sup 175} i Ac{sup 231}). Gibkost' takogo metoda bombardirovki otkryvaet novye vozmozhnosti, t.k. meditsinskij, promyshlennyj, a takzhe issledovatel'skij betatrony mogut ispol'zovat'sya dlya proizvodstva izotopov. Korotkozhivushchie izotopy, kotorye chasto yavlyayutsya bolee udobnymi pri razlichnykh vidakh primeneniya vsledstvie ikh bystrogo raspada i obychno vysokoj ehnergii radiatsii, mogut byt' bystro polucheny bez kakogo-libo dopolnitel'nogo umeniya. (author)

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

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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)

Copolymerization of Ethylene Induced by Cobalt-60 Gamma Radiation; Copolymerisation de l'ethylene induite par des rayons gamma du cobalt-60; Sopolimerizatsiya ehtilena pod dejstviem gamma-izlucheniya ot istochnika ks'yali-60; Copolimerizacion del etileno inducida por las radiaciones gamma del cobalto-60

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Steinberg, M.; Colombo, P. [Brookhaven National Laboratory, Long Island, NY (United States)

1963-11-15

fraccionada. La identificacion se efectuo por espectroscopia infrarroja y la composicion se determino por analisis elemental. Para algunos de los productos de reaccion, los autores indican los puntos de fusion cristalinos, las densidades, las caracteristicas de solubilidad y los pesos moleculares. Obtuvieron pruebas de la copolimerizacion del etileno con cada uno de los siguientes monomeros: estireno, metacrilato de metilo, acetato de vinilo, acrilonitrilo, acetato de alilo, isobuteno, clorotrifluoretileno, trans 2-buteno, acrilato de metilo, isopreno, propeno, cloruro de vinilo, 1-buteno, cis 2-buteno, oxido de carbono, vinilpirrolidona, metilvinilcetona y divinilbenceno. Comprobaron que los datos experimentales obtenidos en el estudio del sistema etileno-oxido de carbono responden a una forma lineal de la ecuacion de composicion del copolimero. Encontraron el valor 22,0 para la razon ({alpha}) de las constantes de velocidad especificas correspondientes al oxido de carbono y al etileno, respectivamente, lo que indica que en calidad de monomero el oxido de carbono se activa en tal medida que se fija al extremo de una cadena de radical etilenico libre con una velocidad 22 veces mayor que un monomero etilenico. (author) [Russian] Byla izuchen vyzvannaya gamma-izlucheniem sopolimerizatsiya ehtilena s ryadom razlichnykh monomerov pri temperature 20{sup o}C i pri nachal'nykh davleniyakh do 680 atm. Ehksperimenty provodilis' staticheski v dvukhfaznykh sistemakh, za isklyucheniem sistemy ehtilen-okis' ugleroda. Razdelenie sopolimerov proizvodilos' metodami ehkstraktsii rastvoritelem i fraktsionirovannogo osazhdeniya. Dlya identifikatsii ispol'zovali infrakrasnuyu spektroskopiyu, a dlya opredeleniya sostava - ehlementarnyj analiz. Privedeny kharakte- ristiki nekotorykh produktov reaktsii, vklyuchayushchie ikh temperaturu plavleniya, plotnost', rastvorimost' i molekulyarnyj ves. Ustanovlena sopolimerizatsiya ehtilena s kazhdym iz sleduyushchikh monomerov: stirolom, metilmetakrilatom

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

(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

Wskaźnik palców a budowa ciała i sprawność motoryczna mężczyzn trenujących sporty walki i nietrenujących = The digit ratio 2D:4D and body build and motoric fitness of men training martial arts and non-athletes

Directory of Open Access Journals (Sweden)

Magdalena Mońka

2016-12-01

Magdalena Mońka1, Jadwiga Pietraszewska2   1 Doktorantka na Wydziale Wychowania Fizycznego Akademii Wychowania Fizycznego we Wrocławiu 2 Zakład Antropologii Fizycznej Akademii Wychowania Fizycznego we Wrocławiu   Słowa kluczowe: wskaźnik 2D:4D, sporty walki, budowa ciała, sprawność motoryczna Key words: index 2D:4D, martial arts, body build, motoric fitness     mgr Magdalena Mońka, dr hab. Jadwiga Pietraszewska, prof. nadzw.     Streszczenie               Poziom sprawności fizycznej jest uwarunkowany wieloma czynnikami, w tym również budową morfologiczną. Jednym z elementów morfologicznych jest formuła palców 2D:4D, opisująca stosunek długości palca drugiego do palca czwartego. Wskaźnik palców kształtuje się w życiu płodowym, pod wpływem działania hormonów płciowych i pozostaje niezmiennym w dalszym rozwoju osobniczym. Wysoki poziom testosteronu, odzwierciedlający się w niższych wartościach formuły palców, determinuje lepszą zręczność, wytrzymałość i siłę. Ponadto wpływa na zachowania zawodników, zwiększając skłonność do agresji oraz wolę walki i podjęcia ryzyka.   Cel               Celem niniejszej pracy jest ocena powiązań wskaźnika palców 2D:4D z cechami budowy somatycznej oraz poziomem sprawności motorycznej w grupie zawodników sporów walki i osób nietrenujących. Materiał i metody               Materiał badawczy stanowiły pomiary antropometryczne i wyniki prób motorycznych mężczyzn uprawiających sporty walki (n=28 oraz osób nietrenujących (n=30. Badani to studenci Akademii Wychowania Fizycznego we Wrocławiu w przedziale wiekowym 19-25 lat. U wszystkich badanych zmierzono cechy długościowe, szerokościowe, obwody ciała i fałdy skórno-tłuszczowe oraz długość drugiego (2D i czwartego palca (4D prawej i lewej ręki. Do oceny sprawności motorycznej badanych wykorzystano cztery próby motoryczne: skłon w przód w siadzie, skok w dal z

Profile counting; Comptage suivant l'axe principal du corps; Issledovanie schetchikom vdol' vsego tela; Recuento segun el eje principal del cuerpo

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Pochin, E E [Medical Research Council, Department of Clinical Research, University College Hospital Medical School, University Street, London, W. C. 1 (United Kingdom)

1959-07-01

, el perfil presentara maximos que indican las regiones del cuerpo en que se producen esas concentraciones y el grado de las mismas; los organos de que se trate pueden identificarse entonces mediante un sistema de representacion bidimensional; se prosigue luego el recuento segun el eje principal con el fin de observar la renovacion de los isotopos o las modificaciones de su concentracion en esos organos. Esta tecnica se ha utilizado para estudiar la concentracion y el metabolismo del yodo-131 en los tumores de la tiroides; se examinara su utilidad para vigilar el tratamiento de esos tumores con yodo radiactivo. La misma tecnica se ha empleado para estudiar la distribucion de la tiroxina y de la triyodotironina marcadas con yodo-131 administradas por via intravenosa, y de particulas de oxido de itrio-90, despues de su inyeccion en una arteria intrapulmonar, asi como para determinar la distribucion de otros isotopos sobre la base de la radiacion gamma o de la radiacion de frenado. Este metodo permite obtener una representacion grafica, convenientemente simplificada para diagnosis mediante comparaciones cuantitativas, de la distribucion, a diferentes intervalos, de los isotopos administrados en dosis unica o sucesivas. (author) [Russian] Pri takom issledovanii schetchik postepenno peremeshchaetsya vdol' vsego tela i tak kollimirovan, chto on v kazhdom polozhenii pokazyvaet soderzhanie radioizotopov lish' v uzkoj polose poperek vsego tela. Esli vychertit' diagrammu skorosti otschetov v kazhdom polozhenii v sootvetstvii s rasstoyaniem schetchika ot temeni, to poluchennaya takim obrazom krivaya pozvolyaaet bystroe izmerenie kolichestvennog o raspredeleni ya izotopov vo vsem tele. Kogda nadlezhashchij izotop preimushchestvenn o skontsentrirovals ya v nekotorykh organakh ili tkanyakh tela, to v krivoj poyavlyayutsya rezkie povysheniya, pokazyvayushchie mesto i razmery takoj kontsentratsii, prichem sootvetstvuyushchi e organy opoznayutsya putem sostavleniya skhemy v dvukh

Radioisotopes in the physical chemistry of corrosion processes and their inhibition; Les radioisotopes dans la chimie physique des processus de corrosion et de leur inhibition; Primenenie radioizotopov v fizicheskoj khimii protsessov korrozii i ikh tormozheniya; Los radioisotopos en la quimica fisica de los procesos de corrosion y de inhibicion

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Cartledge, G H [Chemistry Division, Oak Ridge National Laboratory, Oak Ridge, TN (United States)

1962-03-15

periodico, es particularmente adecuado para algunos de estos estudios. Las ventajas do este elemento estriban, en sus propiedades nucleares. La memoria resume las propiedades quimicas de los compuestos de tecnecio y las compara con las de los compuestos correspondientes de {sup 51}Cr, de molibdeno y de wolframio, que con tanta frecuencia se emplean en el estudio de la inhibicion. La memoria describe seguidamente ciertos estudios experimentales como ejemplo de los usos a que se ha destinado el tecnecio en los trabajos de este tipo. Entre ellos menciona estudios empiricos de su accion como eficaz inhibidor de la corrosion del hierro, y observaciones de la actividad de superficie realizadas durante periodos largos de tiempo. Otros estudios efectuados con {sup 99}Tc y con {sup 131}I han demostrado la importancia de la adsorcion competitiva de iones en la determinacion de la cinetica de los procesos de corrosion y de inhibicion. Como tercer ejemplo, describe como las propiedades excepcionales del tecnecio han permitido distinguir claramente las contribuciones relativas del oxigeno de las del inhibidor oxidante en el mantenimiento de la pasividad. (author) [Russian] Sredi faktorov, vkhodyashchikh v fundamental'noe izuchenie ehlektrokhimicheskikh protsessov korrozii i tormozheniya, vydelyayutsya v chastnosti sleduyushchie: a) razlichnye vidy adsorbtsionnykh yavlenij; b) ionoobmennye svojstva passivnykh plenok; c) ehlektrokhimicheskaya kinetika kak anodnykh, tak i katodnykh protsessov, proiskhodyashchikh mezhdu metallom i korrozijnoj sredoj. Teper' pri pomoshchi radioizotopov mozhno provesti nekotorye issledovaniya ehtikh yavlyaenij, kotorye nevozmozhno osushchestvit' obychnymi sredstvami. Tekhnetsij, gomolog margantsa v periodicheskoj sisteme, okazalsya ves'ma podkhodyashchim dlya nekotorykh ehtikh issledovanij. Ego yadernye svojstva krajne interesny u ehtom otnoshenii. V doklade kratko izlagayutsya khimicheskie svojstva soedinenij tekhnetsiya, protivopostavlennye svojstvam

Post-Construction Testing of the Elk River, Hallam and Piqua Power Reactor Plants; Essais apres construction des centrales nucleaires d'Elk River, de Hallam et de Piqua; Predehkspluatatsionnoe ispytanie Ehlk-riverskoj, Khehlpemskoj i Pikuaskoj ehnergeticheskikh reaktornykh ustanovok; Ensayos posteriores a la construccion de las centrales nucleoelectricas de Elk River, Hallam y Piqua

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Pursel, C. A. [United States Atomic Energy Commission, Argonne, IL (United States)

1963-10-15

byli: Ehlk-riverskij reaktor. V nekotorykh chastyakh baka reaktora obnaruzheny treshchiny, chto potrebovalo obshirnykh issledovanij i analizov, a takzhe nekotorogo remonta i modifikatsii baka. Nedostatochnaya proizvoditel'nost' parootdelitelya potrebovala zameny k modifikatsii nekotorykh metallicheskikh detalej baka reaktora. Khehldemskaya yadernaya ehnergeticheskaya ustanovka. Uvlechenie zashchitnogo gaza geliya privelo k neobkhodimosti modifitsirovat' vtorichnye natrievye kontury. Povrezhdenie truboprovoda v promezhutochnom natrievo-natrievom; teploobmennike potrebovalo provedeniya analizov dlya opredeleniya prichiny povrezhdeniya, vsled za chem posledovalo izvlechenie i remont teploobmennika. Pikuaskaya yadernaya ehnergeticheskaya ustanovka. Pri khimicheskoj ochistke sistemy truboprovodov povrezhdeno neskol'ko ventilej, chto potrebovalo ikh remonta ili zameny. Utechki v sisteme organicheskogo teplonositelya i v sisteme indikatsii para priveli k povtornym zaderzhkam. Posle okonchaniya neobkhodimogo remonta i vneseniya izmenenij fakticheskie rabochie kharakteristiki kazhdogo iz trekh reaktorov priblizilis' vplotnuyu k proektnym raschetam. (author)

Technical Developments in the USAEC Process Radiation Development Program; Etudes technologiques dans le cadre du programme de mise au point d'applications industrielles des rayonnements de la CEA-EU; Issledovaniya v oblasti promyshlennogo primeneniya izluchenij, vkhodyashchie v programmu komissii po atomnoj ehnergii USAEC; Progresos tecnicos en el programa de la USAEC para el fomento de la irradiacion industrial

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Machurek, J. E.; Stein, M. H. [Division of Isotopes Development, USAEC, Washington, DC (United States)

1963-11-15

ispol'zovanie ioniziruyushchikh izluchenij v promyshlennosti. Provedeno chetyrnadtsat' takikh issledovanij, rezul'taty nekotorykh iz nikh izlozheny v obshchikh chertakh v dannoj rabote, ostal'nye izlagayutsya bolee podrobno - v drugikh stat'yakh trudov. Temy issledovanij vklyuchayut: 1. Prigotovlenie kombinatsij derevo-plastik, ispol'zuya gamma-izluchenie dlya indutsirovaniya polimerizatsii. 2. Ispol'zovanie beta-izlucheniya produktov deleniya dlya gidrogenizatsii uglya, i ego produktov s tsel'yu polucheniya zhidkogo uglevodorodnogo topliva. 3. Poluchenie poluprovodnikovykh priborov s formirovaniem zadannogo prostranstvennogo raspredeleniya primesej v zavisimosti ot legirovaniya putem nejtronnykh prevrashchenij. 4. Vyzvannaya izlucheniem polimerizatsiya ehtilena i sopolimerov. 5. Osnovnye issledovaniya mekhanizmov i kinetiki reaktsij, vyzvannykh izlucheniem. 6. Radiatsionno-khimicheskie protsessy pri ftorirovanii razlichnykh aromaticheskikh soedinenij. 7. Ispol'zovanie polifunktsional'nykh monomerov dlya intensifikatsii radiatsionnogo sshivaniya poliehtilena, polipropilena, poliizobutilena i atsetattsellyulozy. 8. Vliyanie nabukhaniya, deformatsii i temperatury na fizicheskie i khimicheskie svojstva polimerov, poluchennykh s pomoshch'yu radiatsii. 9. Vliyanie strukturnykh faktorov na radiatsionnye izmeneniya v polimerakh, privodyashchie k graftsopolimerizatsii. 10. Ispol'zovanie yadernykh izluchenij dlya modifikatstsii tekstil'nykh materialov. 11. Reaktsii, vyzvannye izlucheniem kriptona-85. 12. Podgotovka ''Spravochnika po radiatsii''. 13. Ispol'zovanie metalloorganicheskoj svyazi dlya gamma-dozimetrii pri bol'shikh moshchnostyakh dozy. 14. Razrabotka dozimetra s solnechnym ehlementom. (author)

High-dilution on-stream isotopic tracer techniques; Emploi d'indicateurs radioactifs tres dilues pour le controle les courants; Metody primeneniya sil'no razbavlennykh v potokakh izotopnykh indikatorov; Empleo de indicadores radiactivos muy diluidos en el control de corrientes

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Johnston, W H; Findeis, A F; Vestal, M [William H . Johnston Laboratories, Inc., Baltimore, MD (United States)

1962-01-15

, svyazyvayushchie trebuemye urovni kontsentratsii indikatorov, pribornoe oborudovanie, ehffektivnost' detektorov, trebuemuyu statisticheskuyu nadezh- nost', zhelatel'nuyu prodolzhitel'nost' vremeni, udelyaemogo na izmerenie obraztsa i fona, skorost' techeniya potoka i kharakter radioizotopnogo indikatora. EHti uravneniya predstavleny graficheski i dayut vozmozhnost' legko vybrat' nuzhnuyu dlya togo ili inogo primeneniya kontsentratsiyu indikatora. Razbiraetsya programma vzyatiya obraztsov dlya primeneniya indikatorov v shirokom masshtabe v voprosakh izucheniya ustojchivogo sostoyaniya i pul'siruyushchikh vpuskov. V poslednem sluchae smeshivanie v prodol'nom napravlenii traktuetsya po teorii koehffitsientov vikhrevoj diffuzii. Iskhodya iz nekotorykh predpolozhitel'nykh parametrov, mozhno opredelit' rasstoyanie, na kotorom mozhno obnaruzhit' indikator, i moment, kogda indikator vpervye dokhodit do mesta zamera, v funktsii ot rasstoyaniya mezhdu mestom vpuska indikatora i mestom vzyatiya obraztsa. Dlya mecheniya potokov sil'no razbavlennymi radioizotopami s pomoshch'yu beta-izluchatelej primenyayutsya detektory v vide bol'shikh schetchikov nizkogo urovnya s trubkami, zapolnennymi gazom, fol'ga-potochnye schetchiki i plasticheskie stsintillyatory. Opisyvayutsya novye schetchiki antisovpadenij. Podcherkivayutsya preimushchestva ehkranirovaniya materialami s nizkim atomnym chislom. Ukazyvayutsya novejshie dostizheniya v schete pri pomoshchi ustojchivykh rabotayushchikh na tranzistorakh ehlektronnykh ustrojstv nizkogo urovnya. Opisyvayutsya novyj usilitel' i novyj tunnel'nyj summiruyushchij diodnyj kontur. Dayutsya primery neskol'kikh novykh primenenij sil'no razbavlennykh indikatorov v potokakh dlya razresheniya problemy opoznavaniya istochnika zagryazneniya v rekakh i ruch'yakh. (author)

Multi-channel recording of a pulse spectrum on the screen of a Williams tube used with a ferrite memory analyser; Enregistrement du spectre d'impulsion sur l'ecran d'un tube de Williams au moyen d'un analyseur multicanal a memoire en ferrite; Zapis' spektra impul'sov na ehkrane ehlektronno-luchevoj trubki mnogokanal'nogo analizatora s ferritovoj pamyat'yu; Registro multicanal del espectro de los impulsos en la pantalla del tubo electronico, en un analizador con memoria de ferrita

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Rumler, Shtirad [Institut Yadernogo Issledovannya Chekhoslovatskoj Akldemii Nauk, Rzhezh Chekhoslovatskaya Sotsialisticheskaya Respublika (Czech Republic)

1962-04-15

promedio de impulsos es reducido. La causa reside en el dispositivo descifrador de la informacion leida en el canal directamente a partir de los circuitos sumadores y de los circuitos direccionales con registro inmediato en la pantalla. La ineptitud del registro inmediato es debida al bajo promedio y al tiempo estadistico de distribucion de los impulsos. El dispositivo propuesto resulta mas eficaz en este caso porque la calidad del registro no depende de la forma del espectro ni de la velocidad del recuento de los impulsos. Se utiliza este dispositivo en un analizador de 256 canales con una memoria de ferrita cuyo tiempo muerto es igual a 15 {mu}s. Los ciclos de la representacion oscilografica alternan periodicamente, con una frecuencia de repeticion de 50 Hz, con el ciclo de analisis del espectro medido. El tiempo de inscripcion del oscilografo es aproximadamente igual a 4 ms, es decir, un 20 por ciento de la duracion ordinaria del ciclo de trabajo del analizador. En analizadores cuyo numero de canales es menor y el tiempo muerto de memoria es mas corto, el tiempo del registro oscilografico representa apenas un pequeno porcentaje de la duracion del ciclo de. trabajo del analizador. (author) [Russian] V doklade budet opisana blok-skhema programmnykh tsepej, pozvolyayushchikh osushchestvlyat' mnogokanal'nuyu zapis' vozrastayushchego spektra anali- ziruemykh IMPUL'SOV na ehkrane ehlektronno-luchevoj trubki, v kombinatsii so staticheskoj ferritovoj pamyat'yu. Obshcheprinyatye sposoby neposredstvennoj zapisi na ehlektronno-luchevoj trubke yavlyayutsya v nekotorykh sluchayakh nesovershennymi v analizatorakh ukazannogo tipa. Zapis' okazyvaetsya nedostatochno chetkoj osobenno pri analize vremennykh ''kaskadov'' impul'sov s nizkoj chastotoj povtoreniya i s nizkim srednim chislom impul'sov. Prichinoj yavlyaetsya deshifrovka otchityvaemoj informatsii v kanale pryamo iz summiruyushchikh tsepej i iz adresnykh tsepej s neposredstvennoj zapis'yu na ehkrane. Neprigodnost

Some recent developments in the application of radioisotope techniques in Australia; Progres recents dans l'application des methodes radioisotopiques en Australie; Poslednie dostizheniya v oblasti primeneniya radioizotopov v Avstralii; Recientes progresos realizados en Australia en las aplicaciones tecnicas de los radioisotopos

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Gregory, J N [Australian Atomic Energy Commission Research Establishment, Sutherland, N.S.W. (Australia)

1962-01-15

contadores de centelleo callibrados instalados debajo del agua. Los experimentos pusieron de relieve que la corriente resultaba mas afectada por el viento que por cualquier otro factor. En ausencia de viento, una proporcion considerable del agua caliente retornaba a la central al cabo de tres o cuatro horas, circulando por la superficie del deposito. Ello puso de manifiesto que el sistema de admision del agua se habia proyectado incorrectamente, por lo que hubo de modificarse. El autor describe asimismo un estudio del esquema de circulacion de las soluciones de azucar bruto en un tanque Bach de sedimentacion. Despues de haber sido tratada con cal, la solucion caliente penetra en el tanque por una tuberia de alimentacion que desemboca en la parte superior del mismo, en tanto que la solucion clarificada se estrae por tuberias situadas a seis niveles distintos. Los solidos precipitados se extraen por la parte inferior. Se inyecto una solucion conteniendo 5 milicuries de bromo-82 en la tuberia de alimentacion y el paso del indicador se midio cuantitativamente a medida que aparecia en las seis tuberias de salida, utilizando detectores de centelleo blindados. Un estudio de la distribucion de la actividad dentro de cada tuberia, en funcion del tiempo, permitio formarse una idea clara de las caracteristicas de la corriente en el tanque de sedimentacion. Por ultimo, el autor estudia el rendimiento de la operacion de mezcla en un mezclador de tipo espiral. (author) [Russian] V dannom dokumente daetsya opisanie nekotorykh rabot, vypolnennykh sektsiej izotopov Komissii po atomnoj ehnergii Avstralii za poslednie dva goda, osobenno v svyazi s promyshlennymi ehksperimentami i ispytaniyami, provedennymi v dannoj oblasti v sotrudnichestve s drugimi organizatsiyami. Bylo provedeno issledovanie skhemy potokov v okhladitel'nom bassejne ehlektrostantsii s ispol'zovaniem joda-131 v vide mechenykh atomov. Potok vody byl proslezhen kolichestvenno vo vsem bassejne ob{sup e}mom v 200000000 gallonov s

Statistical Control of Measurement Quality; Controle Statistique de la Qualite de la Mesure; Statisticheskim kontrol' kachestva izmerenij; Control Estadistico de la Calidad de las Mediciones

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Bennett, C. A. [Battelle Memorial Institute, Richland, WA (United States)

1966-02-15

'no, organizacija i dejstvie svjazannyh s jetim sistem kontrolja za materialami, v znachitel'noj stepeni zavisjat ot kachestva kolichestvennyh dannyh, na kotoryh oni osnovany. Informacija otnositel'no nadezhnosti primenjaemyh metodov izmerenij neobhodima kak dlja opredelenija potrebnostej v dannyh, tak i dlja ocenki poluchennyh rezul'tatov. Pochti ljuboj metod analiza mozhno bylo by schitat' horoshim, esli by on 1) byl otnositel'no svoboden ot sistematicheskih oshibok i 2) byl vosproizvodimym, ili, upotrebljaja bolee prinjatuju terminologiju, tochnym. Dlja ocenki i kontrolja za vosproizvodimost'ju analiticheskih rezul'tatov imeetsja mnogo statisticheskih metodov. Byli razrabotany jekonomicheskie i jeffektivnye jeksperimental'nye konstrukcii dlja vydelenija razlichnyh istochnikov oshibok izmerenij. Byli razrabotany ili prisposobleny procedury dlja podderzhanija i kontrolja za tochnost'ju povsednevnyh izmerenij. Vse jeti metody trebujut dublirovat' po krajnej mere nekotorye izmerenija, odnako dublirovanie vseh izmerenij mozhet byt' opravdano tol'ko v tom sluchae, kogda obnaruzhenie kazhdoj gruboj bshibki ili pogreshnosti imeet iskljuchitel'nuju vazhnost'. Mozhno uchityvat' sledujushhie tri vida oshibok v izmerenijah: 1) sistematicheskaja oshibka, otnosjashhajasja k jetalonu, 2) sistematicheskaja oshibka, otnosjashhajasja k predydushhemu opytu i 3) sistematicheskaja oshibka, otnosjashhajasja k gruppe. Pervaja oshibka kasaetsja stepeni, s kotoroj poluchennye izmerenija sistematicheski otklonjajutsja ot predel'nogo ''jetalona'', kotoryj ne imeet oshibok, libo 1) soglasno opredeleniju, libo 2) potomu chto ustraneny vse izvestnye istochniki oshibok. Vtoraja oshibka svjazana s nalichiem sistematicheskih rashozhdenij togo ili inogo perioda vremeni. Tretij vid oshibok kasaetsja svjazi mezhdu razlichnymi svojstva- ' mi ili individuumami v dannoe vremja. Obsuzhdajutsja nedavnie dostizhenija v oblasti statisticheskoj metodologii, primenjaemoj k ocenke vseh treh vidov oshibok. Privodjatsja

Theory of Scanning and Imaging of Radioisotope Distributions; Theorie de la Scintigraphoe a Balayage ou Fixe; Teoriya skennirovaniya i izobrazhenie raspredeleniya radioizotopov; Teoria de la Exploracion y de la Obtencion de Imagenes de Distribuciones Radioisotopicas

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Cassen, B. [Department of Biophysics and Nuclear Medicine, University of California, Los Angeles, CA (United States)

1964-10-15

articulo que se meenciona al principio de este resumen y que, desde entonces, ha sido objeto de nuevos ensayos y perfeccionamientos. (author) [Russian] Daetsja uproshennaja osnovnaja teorija kolichestvennogo opredelenija harakteristik radioizotopnyh sistem izobrazhenija i skennirovanija. Vyvoditsja {sup c}ifrovoj pokazatel'{sup ,} chastichno zavisjashhij ot harakteristik pribora i chastichno ot ispol'zuemoj metodologii. Faktorami, vlijajushhimi na cifrovoj pokazatel', javljajutsja: chuvstvitel'nost' detektora k skorosti scheta na edinicu prostranstvennogo ugla, protivolezhashhego razreshajushhemu jele- mentu, prostranstvennyj ugol, protivolezhashhij razreshajushhemu jelementu, kolichestvo razreshajushhih jelementov, nabljudaemyh odnovremenno, kolichestvo jelementov razlozhenija vo vsem pole skennirovanija ili nabljudenija, koncentracija dozy, obshhee vremja, zatrachennoe na poluchenie izobrazhenija ili skennogrammy i skorost' scheta fona. V nastojashhem predstavlenii osnovnaja teorija sovershenstvuetsja i obsuzhdaetsja s tem, chtoby uchityvat' takie faktory, kak ''glubina fokusa'' razlozhenija, peremennaja skorost' ili peremennoe skennirovanie.vozmozhnosti peremennogo ili avtomaticheski izmenjajushhe- gosja razreshenija, sravnitel'naja razreshajushhaja sposobnost', ''holodnyh'' i ''gorjachih'' uzlov, razmer polja i ispol'zovanie special'nyh radioizotopov i vidov detektorov. Daetsja takzhe obsuzhdenie voprosov obrabotki dannyh, poluchaemyh metodami skenni- rovanija i proekcii. Analiziruetsja otnositel'naja osobennost' jeliminatorov fona i procedur kontrastnogo usilenija takih kak fotoskennirovanie i cvetnoe skennirovanie. Obsuzhdajutsja preimushhestva i vozmozhnye nedostatki zapisi na plenku original'nyh dannyh i povtornoe vosproizvedenie s pomoshh'ju kontrastnyh i fonovyh obrabatyvajushhih konturov. Dajutsja nekotorye jeksperimental'nye cifrovye dannye dlja shiroko ispol'zuemogo kom- mercheskogo skennera, a takzhe nekotorye novye dannye kasajushhiesja novogo skennera

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

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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

chastitsy okisi zheleza ispol'zuyutsya dlya izucheniya ikh roli v protsesse iznosa. Reaktivnost' poverkh- nosti zakalennykh metallov izuchalas' s pomoshch'yu mechennoj uglerodom-14 stearinovoj kisloty i rastvora sery-35. Skorost' reaktsii v primesi masla dlya shesteren analizirovalas' putem propuskaniya korotkikh impul'sov ehlektrotoka po metallicheskim provodam, opushchennym v rastvory soedinenij, mechennykh seroj-35 i fosforom-32. Sozdanie stojkikh k istiraniyu plenok na poverkhnosti zub'ev shesterenok izuchalos' kak funktsiya nagruzki, skorosti i vremeni raboty. Vopros, vstrechayushchijsya vo mnogikh iz vidov ehtogo primeneniya, sostoit v prevrashchenii izmeryaemoj aktivnosti v absolyutnye kolichestva materialov, prisutstvuyushchikh na poverkhnosti plenok ili v produktakh iznosa. Dlya ehtoj zhe tseli ispol'zovalis' metody kalibrovaniya. (author)

Wear studies in the shearing process by means of irradiated tools; Etudes d'usure dans les operations de cisaillement, au moyen d'outils irradies; Issledovaniya problemy iznosa v protsesse skalyvaniya posredstvom obluchennykh instrumentov; Estudios de desgaste en las operaciones de cizallamiento, realizados con ayuda de herramientas irradiadas

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Sata, Toshio; Abe, Kunio; Nakajima, Kiyoshi [Institute of Physical and Chemical Research, Komagome, Bunkyo-Ku, Tokyo (Japan)

1962-01-15

del punzon y de la matriz al emplear lubricantes y laminas metalicas de distintos tipos, obteniendose los resultados siguientes: 1) Al comienzo de la operacion, los indices de desgaste del punzon y de la matriz son muy elevados, pero disminuyen rapidamente, para estabilizarse despues de haber recortado entre 400 y 500 piezas; 2) El desgaste del punzon supera en un 20 por ciento al de la matriz; 3) Los lubricantes con aditivos especiales para altas presiones (compuestos de cloro, fosforo o azufre) reducen el desgaste de las herramientas, mientras que los aceites minerales refinados ejercen poco efecto; 4) Cuanto mas duro es el metal trabajado, tanto mayor es el desgaste de las herramientas; el desgaste al punzonar acero inoxidable y acero al silicio es tres y seis veces superior, respectivamente, al observado en el caso del acero pobre en carbono. (author) [Russian] Iznos instrumenta v protsesse skalyvaniya metallicheskogo lista issledovalsya s pomoshch'yu probojnikov i stal'nykh puansonov s bol'shoj skorost'yu shtampovki, obluchennykh v yadernom reaktore. Kruglye diski diametrom 10 mm shtampuyutsya iz stal'nogo lista s nizkim soderzhaniem ugleroda tolshchinoj 0,5 mm, nerzhaveyushchej stali i kremnievoj stali, sukhim sposobom i so smazkoj. Posle shtampovki izmeryalas' radioaktivnost' diskov otverstij. Kogda radioaktivnyj puanson zamenyalsya neradioaktivnym, to na diskakh obnaruzhivalas' neznachitel'naya radioaktivnost' v to vremya, kak radioaktivnost' v otverstiyakh edva izmenyalas'. EHto pokazalo, chto iznos puansona mozhno opredelit' po radioaktivnosti diskov, a iznos probojnikov - po radioaktivnosti otverstij. S pomoshch'yu ehtogo metoda iznos probojnikov i puansonov proveryalsya pri ispol'zovanii razlichnykh vidov smazochnogo materiala i metallicheskogo lista i byli polucheny sleduyushchie rezul'taty: 1) V nachale shtampovki skorost' iznosa kak probojnika, tak i puansona ochen' bol'shaya, no ona bystro snizhaetsya i stanovitsya, nakonets, postoyannoj posle

Theory of Radioisotope Scanning; Theorie de l'Exploration au Moyen d'un Radioisotope; Matematicheskaya osnova radioizotopnogo skennirovaniya; Teoria de la Exploracion Radioisotopica

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Brownell, G. L. [Massachusetts General Hospital, Boston, MA (United States)

1964-10-15

optimal'nogo razreshenija i soderzhanija h raspredelenija radioizotopov. Radioijeotopnoe skennirovanie mozhno rassmatrivat' kak process sbora informacii i predstavlenija dannyh. Pervichnaja informacija zavisit ot pervonachal'nogo raspredele- nija radioizotopov. Kollimator i sistema detektirovanija obespechivajut mehanizm pereda- chi informacii, a okonchatel'naja skennogramma daet rezul'tirujushhuju informaciju. V sluchae primenenija vseh jetih metodov lish' nebol'shaja chast' informacii popadaet na okonchatel'nuju skennogrammu. Mozhno videt', chto dlja sistemy fokusirujushhego kollimatora i scintilljacionnoj ka- mery chislo otschetov na ploshhad' razreshenija kolebletsja kak chetvertaja stepen' rasstojanija razreshenija. Dlja nekotoryh vidov raspredelenija izotopov mozhno poluchit' analiticheski optimal'nuju velichinu rasstojanija razreshenija. Odnako dlja bol'shinstva sistem optimal'- noe razreshenie dolzhno opredeljat'sja opytnym putem i s pogreshnostjami. Nastojashhie prob- lemy analogichny problemam rasshifrovki snimkov v drugih oblastjah. Programma vychisli- tel'noj mashiny byla podgotovlena s tem, chtoby sodejstvovat' opredeleniju optimal'nogo razreshenija dlja razlichnyh modelej. Nastojashhaja vychislitel'naja mashina javljaetsja unikal'noj, poskol'ku v nej imeetsja promezhutochnyj otsek dlja diska i dlja schityvanija jelektronno-luchevoj trubki. Rezul'taty primenimy k konstrukcii mnogih skennirujushhih sistem. (author)

Quantitative Studies of the Reactions of Hot Tritium Atoms with Hydrocarbons and Hydrocarbon Mixtures; Etudes Quantitatives des Reactions des Atomes Chauds de Tritium avec les Hydrocarbures et les Melanges d'Hydrocarbures; Kolichestvennoe issledovanie reaktsij goryachikh atomov tritiya s gidrouglerodami i smesyami gidrouglerodov; Estudio Cuantitativo de las Reacciones de Atomos de Tritio Calientes con Hidrocarburos y Mezclas de Hidrocarburos

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Urch, D. S.; Welch, M. J. [Department Of Chemistry, Queen Mary College. University of London, London (United Kingdom)

1965-04-15

, producido por la reaccion {sup 3}He(n, p){sup 3}H, con los siguientes sistemas (todos los cuales contienen oxigeno como depurador); etano con helio como moderador, butano con helio como moderador, neopentano con helio como moderador, etano y butano con y sin helio como moderador, etano y neopentano con y sin helio como moderador. Los autores calculan los valores de a y de I para las tres especies reactivas, a partir de los tres tipos de sistemas, y discuten la concordancia entre los resultados, en relacion con la exactitud del modelo. Los resultados obtenidos para los diferentes sistemas son compatibles dentro de los limites del error experimental, lo que indica que el modelo de la teoria cinetica puede aplicarse a los sistemas de atomos calientes con cierta confianza y que las hipotesis adoptadas al considerar las mezclas son razonables. Las razones de reactividad de los hidrocarburos en mezclas, en lo que se refiere a las reacciones de sustitucion, no coinciden con las razones del numero de atomos de hidrogeno de los hidrocarburos. Los valores obtenidos para dichos cocientes se explican en funcion de los valores de I y S (la seccion eficaz de colision) correspondientes a los hidrocarburos. (author) [Russian] Kineticheskaja teorija reakcij gorjachih atomov rasprostranjaetsja na obshhuju sistemu dvuh reakcionno sposobnyh vidov i inertnyj zamedlitel'. Iz rezul'tatov s odnim reagirujushhim veshhestvom i zamedlitelem, dvumja reagirujushhimi veshhestvami bez zamedlitelja i dvumja reagirujushhimi veshhestvami s zamedlitelem mozhno vychislit' velichiny ili kojefficienty integrala I reaktivnosti i srednjuju logarifmicheskuju poteri jenergii na stolknovenie a. . Predstavljajutsja novye rezul'taty, poluchennye v rezul'tate reakcii gorjachego tritija v reakcii He{sup 3} (p.r.) H{sup 3} so sledujushhimi sistemami (vse soderzhat akceptor radikalov kisloroda): jetan s gelievym zamedlitelem; butan s gelievym zamedlitelem: tetrametilmetan s gelievym zamedlitelem; jetan i butan s gelievym

Assessment of End-Plug Welding of Fuel Elements; Evaluation des Soudures Terminales des Elements Combustibles; Otsenka kachestva privarki kontsevoj probki toplivnykh ehlementov; Inspeccion de la Soldadura del Tapon Terminal de los Elementos Combustibles

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Nakamura, Y.; Aoki, T. [Tokai Refinery, Atomic Fuel Corporation (Japan)

1965-10-15

investigacion Numero-Sign 3 (JRR-3). Ese reactor de 10 MW es moderado y refrigerado por agua pesada, y tiene elementos combustibles de uranio metalico revestidos de aluminio. Como entre el revestimiento y el alma hay solamente una union mecanica, puede producirse una tension en el tapon terminal como resultado del crecimiento del alma de uranio debido a la irradiacion. El ciclo termico produce tensiones analogas en las soldaduras. Como resultado de la diferencia de microestructura, las proximidades de estas que dan especialmente expuestas a la corrosion producida por el agua caliente. Mientras el reactor esta en servicio, es imprescindible asegurar su estanqueidad. Se han utilizado probetas especiales para estudiar la resistencia a la traccion, la fluencia a alta temperatura, los efectos del ciclo termico y la corrosion. Antes de hacer esos ensayos, y periodicamente durante su realizacion, se sometieron a examen no destructivo muchas clases de soldaduras y se verifico si habia escapes. La evaluacion de los resultados obtenidos puede servir para establecer normas de inspeccion, por ejemplo, mediante radiografia y examen visual de la soldadura del tapon. En la memoria se describen algunos otros resultados de ensayos efectuados con elementos combustibles revestidos de Magnox y Zircaloy. (author) [Russian] Ochen' vazhno ustanovit' sootnoshenie mezhdu rezul'tatami ispytanij i ispol'zovaniem ih v reaktore, a takzhe razrabotat' sami metody ispytanija bez razrushenija ispytyvaemogo ob{sup e}kta. Odnako sdelat' jeto dovol'no trudno, tak kak jeto svjazano s bol'shimi rashodami i bol'shoj radioaktivnost'ju. Bylo proizvedeno neskol'ko vidov ocenok vo vnereaktornom sostojanii s imitaciej vnutrireaktornyh uslovij. Opisyvajutsja nekotorye detali jetih ocenok v otnoshenii toplivnyh jelementov issledo- vatel'skogo reaktora JKK-3. V je t om reaktore ustanovlennoj moshhnost'ju 10 mgvt s tjazhe- loj vodoj v kachestve zamedlitelja i teplonositelja ispol'zujutsja toplivnye jelementy iz

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

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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

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

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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

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

mamiferos por rayos X de 150 kVp y por electrones de 15 MeV emitidos por un betatron. En la memoria se exponen los resultados de un estudio autorradiografico sobre el comportamiento de diferentes clases de celulas del timo de los ratones, en el que se ha utilizado timidina tritiada como precursor del acido desoxirribonucleico. Los datos se relacionan con las modificaciones de la distribucion de tamanos en la poblacion celular y con el peso del organo. Despues de la irradiacion, aumenta la razon macrocitos/microcitos y la incorporacion de timidina tritiada disminuye tanto en los linfocitos grandes como en los pequenos. Durante la fase en que los efectos se manifiestan con mayor intensidad, no se observan diferencias significativas entre los rayos X y los electrones en cuanto al tamano de las celulas o la marcacion de los macrocitos. En la marcacion de los microcitos se advierte una variacion relativa que concuerda con los datos referentes al peso del organo y que puede estar relacionada con el valor de la EBR de los electrones rapidos. En la fase de restauracion, las celulas menos diferenciadas proliferan activamente, pero el porcentaje de linfocitos maduros sigue siendo bajo. Despues de la exposicion a electrones de 15 MeV, la actividad de proliferacion de los macrocitos aumenta, segun la curva de la atrofia del timo en funcion del tiempo. A juzgar por estos resultados, la capacidad de regeneracion parece estar relacionada con la gravedad de la lesion de las celulas primitivas; para una dosis determinada, esta ultima es mayor cuando la irradiacion se efectua con rayos X que cuando se realiza con electrones. (author) [Russian] Mehanizm vosstanovlenija posle ostrogo radiacionnogo porazhenija mozhet byt' izuchen pri pomoshhi ispol'- zovanija radiacii dvuh vidov s nebol'shoj raznicej v zhestkoj otnositel'noj biologicheskoj jeffektivnosti, no so znachitel'nymi rashozhdenijami rezul'tatov v faze vosstanovlenija. Na osnovanii nabljudenij pri predydushhih onpytah zto usldovie

EURATOM's Programme of Participation in Power Reactor Construction; Le programme de participation d'Euratom aux reacteurs de puissance; Programma uchastiya v razrabotke ehnergeticheskikh reaktorov Evratoma; El programa de participacion de la Euratom en la construccion y explotacion de reactores de potencia

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Ramadier, R. C.; Parker, E. [Communaute Europoenne de l' Energie Atomique, Bruxelles (Belgium)

1963-10-15

razrabotke dvukh ehnergeticheskikh reaktorov. Ehti zaprosy byli predstavleny sootvetstvenno Ob''edineniem Rheinisch-Westffllischee Elektrizitfltswerk - Bayernwerke (RWE-BW) N.V. Samenwerkende Electriciteits -Productiebedriyve. Pervyj zapros kasaetsya kipyashchego reaktora s dvojnym tsiklom moshchnost'yu v 237 mgvt ehl), vtoroj - kipyashchego reaktora s pryamym tsiklom i estestvennoj tsirkulyatsiej moshchnost'yu v 50 mgvt (ehl). Sovmestnoe uchastie mozhet prinimat' razlichnye formy. Ono mozhet, v chastnosti, vylit'sya v uchastie pri pokrytii veroyatnogo defitsita pri proizvodstve ehlektroehnergii na ehlektrostantsiyakh v techenie pervykh let ikh ehkspluatatsii. Takoe uchastie Evratoma imelo tsel'yu pooshchrit' stroitel'stvo nekotorykh iz ehtikh atomnykh ehlektrostantsij. K tomu zhe ono pozvolit i v dal'nejshem poluchat' chrezvychajno poleznuyu informatsiyu v posleduyushchie gody, kogda problemy predstoyashchej deyatel'nosti v oblasti razvitiya atomnoj ehnergii vstanut so vsej ochevidnost'yu. (author)

Some Uses of Radioisotopes and Radiations in Entomology; Quelques emplois des radioelements et des rayonnements en entomologie; Nekotorye vidy primeneniya radioehlementov i oblucheniya v ehntomologii; Algunas aplicaciones de los radioelementos y de las radiaciones en entomologia

Energy Technology Data Exchange (ETDEWEB)

Courtois, G. [Centre d' Etudes Nucleaires de Saclay (France); Lecomte, J. [Institut National de la Recherche Agronomique, Station de Recherches sur l' Abeille et les Insectes Sociaux, Bures-Sur-Yvette (France)

1963-09-15

muravejnikakh radioaktivnykh veshchestv iz osadkov. V period slabykh osadkov opredelyali estestvennuyu radioaktivnost', svyazannuyu s nalichiem K{sup 40}, i ee ispol'zovali dlya opredeleniya soderzhaniya kaliya v organizme murav'ev i pchel. Byla predprinyata popytka mecheniya saranchovykh nasekomykh. Privodyatsya poluchennye rezul'taty. Nakonets, bylo provedeno issledovanie raspredeleniya nekotorykh radioizotopov (R{sup 32} i S{sup 35}) v organizme, pchel s pomoshch'yu metoda avtoradiografii. (author)

Mass-Spectrometric Investigations of Isotopic Exchange Reactions of Gaseous Hydrocarbon Ions; Recherches, par Spectrometrie de Masse, sur les Echanges Isotopiques des Ions d'Hydrocarbures Gazeux; Mass-spektrometricheskie issledovaniya reaktsij izotopnogo obmena ionov gazoobraznogo uglevodoroda; Estudio del Intercambio Isotopico de Iones Hidrocarburo Gaseosos por Espectrometria de Masas

Energy Technology Data Exchange (ETDEWEB)

Wexler, S. [Argonne National Laboratory, Argonne, IL (United States)

1965-10-15

, dvumja ili tremja atomami vodoroda, zameshhennymi bolee tjazhelym izotopom. Sootvetstvie krivyh vneshnih potencialov i krivyh jeffektivnosti ionizacii javilos' dal'nejshim dokazatel'stvom togo, chto D{sub 2}{sup +} i CH{sub 3}{sup +} javljajutsja pervichnymi predshestvennikami ionov dejterizovannogo jetila. Uvelichenija kojefficientov intensivnosti C{sub 2}H{sub 4}D{sup +}/C{sub 2}H{sub 5}{sup +}, C{sub 2}H{sub 3}D{sub 2}{sup +}/C{sub 2}H{sub 5}{sup +}, nabljudaemye pri uvelichenii koncentracii dejterija (pri postojannom davlenii CH{sub 4}), dajut osnovanie predpolagat', chto vidy izotopnogo obmena poluchajutsja s pomoshh'ju mehanizma, svjazannogo s posledovatel'nymi iono-molekuljarnymi reakcijami, kotorye po krajnej mere na odin kineticheskij porjadok vyshe v koncentracii D{sub 2}, chem dlja obrazovanija C{sub 2}H{sub 5}{sup +}. Jeto soglasuetsja s analizom vozmozhnyh putej protekanija reakcii, chto privodit k vyvodu, chto dejtirizovannye vidy javljajutsja produktami reakcij kak pervogo, tak i vtorogo porjadka v D{sub 2} i chto C{sub 2}H{sub 5}{sup +} obrazuetsja v rezul'tate ionnyh reakcij s zavisimostjami kak pervogo, tak i nulevogo porjadka ot koncentracii dejterija. Kineticheskie skorosti reakcij izotopnogo obmena CH{sub 3}{sup +} + D{sub 2} ( North-East-Arrow CH{sub 2}D{sup +} + DH); ( South-East-Arrow CHD{sub 2}{sup +} + H{sub 2}; D{sub 2}{sup +} + CH{sub 4} ( North-East-Arrow CH{sub 2}D{sup +} + H + DH); ( South-East-Arrow CHD{sub 2}{sup +} + H + H{sub 2}) otvechajushhih za bystroe sokrashhenie pervichnyh vidov pri dobavlenii protivopolozhnogo komponenta, dolzhny nahodit'sja v predelah porjadka velichiny skorostej sootvetstvujushhih konkurirujushhih reakcij: CH{sub 3}{sup +} + CH{sub 4} -> C{sub 2}H{sub 5}{sup +} + H{sub 2}; D{sub 2}{sup +} + D{sub 2} --> D{sub 3}{sup +} + D dlja kotoryh byli izmereny poperechnye sechenija, ravnye 27 x 10{sup -16} i 56 x 10{sup -16} cm{sup 2}/molekula sootvetstvenno. Jeti poperechnye sechenija sootvetstvujut konstantam ochen' bol

Present and Future Programmes in the Treatment and Ultimate Disposal of High-Level Radioactive Wastes in the United States of America; Programmes Actuels et Futurs de Traitement et d'Elimination Definitive des Dechets Radioactifs de Haute Activite aux Etats-Unis; 0422 0415 041a 0423 0429 0410 042f 0418 0411 0423 0414 ; Programas Estadounidenses Actuales y Futuros para el Tratamiento y Evacuacion Definitiva de Desechos de Elevada Radiactividad

Energy Technology Data Exchange (ETDEWEB)

Belter, W. G. [United States Atomic Energy Commission, Washington, DC (United States)

1963-02-15

sostojanie'', v tom chisle ispol'zovanie metoda dvizhushhegosja sloja, podogrevaemyh tigelej, forsunochnyh kolonn s teploizlucheniem, vrashhajushhihsja pechej i gubchatoj keramiki. Issleduetsja takzhe vozmozhnost' dobavlenija k othodam, stekloobra- zuzhhcih materialov dlja poluchenija bolee ustojchivogo konechnogo produkta. Otmechajutsja nekotorye preimushhestva i nedostatki kazhdogo iz jetih processov. Rezjumiruetsja sostojanie razrabotka jetih processov v nastojashhee vremja i privodjatsja nkmetki budushhej programmy. Privodjatsja rezul'taty obsledovanija specifichnyh geologicheskih obrazovanij, kak, naprimer, soljanyh zalezhej, glubokih vodoemov i vodonepronicaemyh kristallicheskih porod na predmet ispol'zovanija ih dlja okonchatel'nogo hranenija ili udalenija kal'cinirovannyh tverdyh veshhestv ili nekotoryh vidov zhidkih othodov. Obsuzhdajutsja plany predpolagaemyh polevyh jeksperimentov s real'noj aktivnost'ju v solenyh zalezhah. Kratko opisyvaetsja programma razvedochnogo burenija na zavode Savanna River dlja opredelenija vozmozhnostej hranenija staryh othodov pervogo cikla v korennyh porodah, zalegajushhih neposredstvenno v rajone zavoda. Soobshhajutsja predvaritel'nye rezul'taty. Dajutsja kratkie ukazanija otnositel'no dolgosrochnyh tehnologicheskih issledovanij, provodimyh v nastojashhee vremja v Okridzhe, dlja ocenki stepeni bezopasnosti i jekonomichnosti razlichnyh metodov obrabotki, hranenija i okonchatel'nogo udalenija zhidkih i tverdyh vysokoaktivnyh othodov. Obsuzhdaetsja rol' jetoj programmy tehnicheskoj ocenki v svjazi s dal'nejshim planirovaniem programmy obrabotki radioaktivnyh othodov. (author)

Administrative Co-ordination of Fissile Material Management and Accounting in the U.K.A.E.A; Coordination Administrative de la Gestion et de la Comptabilite des Matieres Fissiles dans les Etabussements de l'Autorite de l'Energie Atomique du Royaume-Uni; Administrativnaya koordinatsiya kontrolya i ucheta delyashchikhsya materialov v upravlenii po atomnoj ehnergii soedinennogo korolevstva; Coordinacion Administrativa de la Gestion y la Contabilidad de Materiales Fisionables en la Comision de Energia Atomica del Reino Unido

Energy Technology Data Exchange (ETDEWEB)

Hood, St. C.C. [United Kingdom Atomic Energy Authority, London (United Kingdom)

1966-02-15

celyj rjad let v rezul'tate novogo proizvodstva, pererabotki skrapa i importa, a takzhe vseh vidov ispol'zovanija, v tom chisle vygoranija, poter' i jeksporta; b) vnosjat rekomendacii po voprosam vydachi deljashhihsja materialov dlja utverzhdennyh rabot v svjazi s drugimi trebovanijami otnositel'no imejushhihsja postavok s uchetom vozmozhnyh jekonomicheskih problem; c) vedut uchet vseh utverzhdennyh vydach, izuchajut harakter, kolichestva i celi vseh sushhestvujushhih zapasov v svjazi s provodimoj politikoj i zadachami; d) vedut uchet i izuchajut vse poteri deljashhihsja materialov vo vremja izgotovlenija ili drugih processov, a takzhe izuchajut mery, predprinjatye dlja sokrashhenija poter'; e) okazyvajut pomoshh' v razrabotke procedur i predlozhenij dlja togo, chtoby garantirovat', chto material ispol'zuetsja jekonomno i bystro vozvrashhaetsja. Kazhdaja gruppa obladaet znachitel'noj avtonomiej v ispol'zovanii deljashhihsja materialov dlja sobstvennyh povsednevnyh nuzhd. Vysheopisannaja administrativnaja mashina obespechivaet to, chto s ee pomoshh'ju uchenye, inzhenery, buhgaltery i administratory Upravlenija, svjazannye s problemami deljashhihsja materialov, mogut dejstvovat' kollektivno v obshhih ramkah soglasovannosti i s minimal'noj bumazhnoj volokitoj. V doklade privedena uproshhennaja shema osnovnyh potokov deljashhihsja materialov dlja mirnyh celej, prinjataja v Upravlenii po atomnoj jenergii v techenie goda, zakonchivshegosja 31 marta 1965 goda. (author)

Lattice Dynamics of Transition Metals; Dynamique de Reseau des Metaux de Transition

Energy Technology Data Exchange (ETDEWEB)

Woods, A. D.B. [Chalk River Nuclear Laboratories, Chalk River, ON (Canada)

1965-04-15

{sup 12} c/s para {zeta} = 1.0. Si estas y otras particularidades observadas son anomalias de Kohn, sus posiciones son compatibles con las dimensiones de la superficie de Fermi propuesta por Lomer para los metales de la columna V. Se formula la hipotesis de que las sorprendentes diferencias existentes entre la relacion de dispersion del niobio y la del molibdeno (metales que, segun se cree, poseen estructuras de banda muy semejantes) reflejan diferencias en las energias de Fermi y, por tanto, en las superficies de Fermi de estos materiales. (author) [Russian] Dispersionnoe sootnoshenie chastota/volnovoj vektor v(q) dlja obychnyh vidov kolebanij nekotoryh ob{sup e}mno-centrirovannyh kubicheskih kristallov perehodnyh metallov bylo nedavno izmereno pri komnatnoj temperature. Krivye dispersii dlja niobija, izmerennye Nakagovoj i Vudsom, projavili nekotorye ochen' neobychnye cherty, i rezul'taty mozhno bylo privesti v sootvetstvie tol'ko s pomoshh'ju modeli Born fon Karmana, esli vkljuchit' vzaimodejstvija s ochen' otdalennymi chlenami rjada dal'she vos'mogo. Posledujushhie izmerenija Vudsom tantala dali ochen' pohozhie rezul'taty. Jeto ne udivitel'no, poskol'ku niobij i tantal nahodjatsja v V gruppe periodicheskoj tablicy i mnogie iz ih jelektronnyh svojstv odinakovy. Izmerenija krivyh dispersij molibdena Vudsom i Chenom i vol'frama Chenom i Brok- hauzom pokazali, chto, hotja u jetih metallov, kotorye nahodjatsja v gruppe VI periodicheskoj tablicy, dispersionnye sootnoshenija javljajutsja analogichnymi, jeti dispersionnye sootnoshenija sil'no otlichajutsja ot dispersionnyh sootnoshenij dlja niobija i tantala, nahodjashhihsja v gruppe V. Osnovnye cherty u(q) dlja molibdena i vol'frama ochen' blizko opisyvajutsja tret'im chlenom rjada simmetrichnoj po osjam silovoj modeli Born-fon Karmana, hotja nekotorye vazhnye cherty ne vosproizvodjatsja jetoj model'ju. Odnoj iz takih chert javljaetsja razitel'naja anomalija v prodol'noj [{zeta}{zeta}{zeta}] vetvi (L) dlja molibdena, gde

Special Nuclear Material Control by the Power Reactor Operator; Controle des Matieres Nucleaires Speciales par l'Exploitant d'une Centrale Nucleaire; Spetsial'nyj kontrol' nalichiya yadernykh materialov operatorom ehnergeticheskogo reaktora; Control de Materiales Nucleares Especiales por Parte de Quienes Operan el Reactor de Potencia

Energy Technology Data Exchange (ETDEWEB)

Cordin, R. A. [Yankee Atomic Electric Company, Boston, MA (United States)

1966-02-15

sushhestvovanija reaktorov nashi inzhenery i uchenye nepreryvno sovershenstvovali konstrukciju ustanovok i uluchshali metody jekspluatacii s cel'ju snizit' sebestoimost' s tem, chtoby nashi jadernye ustanovki mogli byt' konkurentosposoonymi s rabotajushhimi na iskopaemom toplive jelektrostancijami obychnogo tipa. Administrativnohozjajstvennyj uchet jadernyh materialov dolzhen byt' po mere vozmozhnosti sovremennym i jeffektivnym s tem, chtoby tehnologicheskij process, napravlennyj na snizhenie sebestoimosti, ne stradal by iz-za rastochenija jadernogo topliva i nebrezhnogo ego ucheta. Administrativno-hozjajstvennyj uchet trebuet so storony operatora jenergeticheskogo reaktora vedenija polnyh i podrobnyh uchetnyh dokumentov. Dlja udovletvorenija trebovanijam polnoty i nadezhnosti jeti dokumenty vovse ne dolzhny byt' slozhnymi. Naoborot, prostota ih javljaetsja chrezvychajno zhelatel'noj. Nesmotrja na to, chto jadernoe toplivo javljaetsja chem-to novym i sovershenno otlichnym ot topliva obychnogo tipa, nel'zja oblekat' ego pokrovom tainstvennosti. Kontrol' nalichija jadernyh materialov kak chast' administrativno-hozjajstvennogo ucheta jadernyh materialov ne ogranichivaetsja odnoj lish' rabotoj po proverke nalichija materialov, no on lezhit v osnove mnogih drugih vidov dejatel'nosti, javljajushhihsja neot{sup e}mlemoj chast'ju jekspluatacii ljubogo jenergeticheskogo reaktora, kak naprimer, otpravok obluchennogo topliva, pereobrabotki otrabotannogo topliva so svjazannoj s jetim otchetnost'ju pri regeneracii topliva i materiala, proizvedennogo pri rabote reaktora. K jetomu krugu problem otnosjatsja takzhe vyrabotka i osushhestvlenie nadlezhashhej programmy strahovanija. (author)

Effect of the plutonium isotopic composition on the performance of fast reactors; Effet de la composition isotopique du plutonium sur le rendement de reacteurs a neutrons rapides; Vliyanie izotopnogo sostava plutoniya na rabotu reaktorov na bystrykh nejtronakh; Efectos de la composicion isotopica del plutonio sobre el funcionamiento de los reactores rapidos

Energy Technology Data Exchange (ETDEWEB)

Yiftah, S [Israel Atomic Energy Commission (Israel)

1962-03-15

fisionables por neutrones termicos ({sup 239}Pu y {sup 241}Pu), cuanto mas impuro sea el plutonio, tanto menor sera la masa critica y mayor la razon de reproduccion. Tomando como ejemplo el reactor de 1500 l, se comprobo ademas que al eliminar un 40 por ciento del sodio inicialmente presente en el cuerpo, la variacion de reactividad tiende a ser negativa a medida que aumenta la proporcion de isotopos superiores contenidos en el combustible de plutonio (en forma de metal, oxido o carburo). (author) [Russian] Izotopnyj sostav plutoniya, kotoryj dolzhen ispol'zovat'sya v kachestve goryuchego dlya reaktorov na bystrykh nejtronakh, budet zaviset' ot istochnika polucheniya plutoniya. V printsipe vozmozhny tri razlichnykh istochnika: a) proizvodyashchie reaktory; b) teplovye ehnergeticheskie reaktory (ispol'zuyushchie v kachestve topliva estestvennyj ili obogashchennyj uran); c) zony vosproizvodstv a reaktora na bystrykh nejtronakh. V osnovnom istochnik (a) i v nekotorom otnoshenii istochnik (s) budut davat' sravnitel'no 'chistyj' plutonij, t.e. glavnym obrazom plutonij-239, togda kak plutonij iz istochnika (b) budet 'gryaznym', t.e. plutoniem, bogatym izotopami plutoniya-240, plutoniya-241 i plutoniya-242. Stepen' 'zagryazneniya' budet zaviset' ot tipa reaktora, velichiny vygoraniya i voobshche ot istorii oblucheniya topliva. V takom sluchae voznikaet vopros, mozhno li ispol'zovat' v kachestve goryuchego dlya reaktorov na bystrykh nejtronakh lyubye vidy plutoniya. Dlya izucheniya vliyaniya razlichnogo izotopnogo sostava plutonievogo topliva v metallicheskom, oksidnom i karbidnom vide na rabotu reaktorov na bystrykh nejtronakh byli osushchestvleny ogranichennye serii podschetov po 16-gruppovoj diffuzionnoj teorii sfericheskoj geometrii s pomoshch'yu 16-gruppovogo komplekta poperechnykh sechenij, razrabotannogo nedavno Iftakhom, Okrentom i Mol'dauerom s ispol'zovaniem trekh razlichnykh vidov plutoniya, nachinaya s chistogo plutoniya-239 i povyshaya kolichestvo bolee vysokikh izotopov

Behaviour of semiconductor nuclear-particle detectors; Comportement des semi-conducteurs comme detecteurs de particules nucleaires; Povedenie detektorov yadernykh chastits na poluprovodnikakh; Propiedades de los detectores de particulas nucleares a base de semiconductores

Energy Technology Data Exchange (ETDEWEB)

Walter, F J; Dabbs, J W.T.; Roberts, L D [Oak Ridge National Laboratory, Oak Ridge, TN (United States)

1962-04-15

ot detektora i usilitelya. Dlya bar'ernogo detektora s kremnievoj poverkhnost'yu v 40 mm{sup 2} pri 77{sup o}K. byli ustanovleny pokazateli shuma, ehkvivalentnye c {<=} 3 kehv (polnaya shirina pri polumaksimume). Poluprovodnikovym detektoram svojstvenen ''defekt amplitudy impul'sa'' dlya oskolkov deleniya. Imeyutsya dannye, svidetel'stvuyushchie o tom, chto ehtot defekt ne vyzyvaetsya ''neradioaktivnym sloem''. Esli ehlektricheskie polya, kotorye yavlyayutsya nedostatochnymi dlya obespecheniya polnogo ''sbora'', vyzyvayut ehtot defekt, neobkhodimym minimal'nym polem (na poverkhnosti) yavlyaetsya pole svyshe 3 x 10{sup 4} vol't/sm dlya oskolkov deleniya po sravneniyu c 2 x 10{sup 3} vol't/sm, neobkhodimost' chego byla ustanovlena dlya al'fa-chastits v germanii i kremnii. Podrobnye issledovaniya vremeni narastaniya impul'sa v usilitele pokazali, chto v materialakh s vysokoj soprotivlyaemost'yu kak vremya ''diehlektricheskoj'' relaksatsii, tak i soprotivlenie, svyazannoe s neistoshchennym osnovnym materialom, mogut igrat' vazhnuyu rol'. V doklade daetsya kolichestvennoe opisanie dejstviya parametrov detektora i usilitelya na formy i vremya narastaniya, svyazannye s impul'som. V doklade obsuzhdayutsya preimushchestva i problemy, svyazannye s ispol'zovaniem poverkhnostnykh bar'ernykh detektorov v nekotorykh opytakh po yadernomu vyravnivaniyu pri unikal'no nizkikh temperaturakh. V khode ehtikh opytov proiskhodili uglovye raspredeleniya oskolkov raspada i razreshenie al'fa-mikrostruktury s dolgosrochnoj stabil'nost'yu. V doklade takzhe daetsya opisanie tekhniki izgotovleniya s koehffitsientom soglasovannogo rasshireniya, kotoraya uspeshno ispol'zovalas' dlya izgotovleniya detektorov do 8 cm{sup 2} v aktivnoj zone. (author)

İlk “Mûsikî” Ders Programları ve Zati Bey’in “Talim-i Kıraat-i Mûsikî” İsimli Eserinin Analizi The First “Mûsıkî” Curriculums And The Analysis Of The Work Of Art Named “Talim-i Kıraat-i Mûsıkî” Of Zati Bey

Directory of Open Access Journals (Sweden)

Cahit AKSU

2013-03-01

, the book hasguided to the books of music education which were produced in therepublican period. The subjects in the children‟s songs which took placein the book that was first written in the year 1899 and whose 1925edition was analysed in this research has shown the emotions, ideas,feelings and the needs of Turkish people of that time. The great agonyresulted from the loss of the cities, the virtue of helping materially to thearmy that was struggling, the honour of Turkishness and the war ofindependence, and the importance of agricultural progress, productionand being economical are the main topics dealt with in the songs thatare in this book.The subjects that are dealt with in the songs that takeplace in the book are as follows: “Games, organs, days, numbers,seasons, the awareness of economy, the importance of studying, thelove of God, nutrition, the love of nature, the love of father & mother,the importance of education, longing, heroism and love of country.”When compared to the studies that are about the variety ofsubjects in the songs that were written in the advancing years of theRepublican period, we see that the subjects of the songs that take placein the piece named „‟Talim-i Kıraat-i Musiki‟‟ reflect a real pedagogicunderstanding and we also see that with its this characteristic, itpioneers to the similar music education books that are written after it. Osmanlı Döneminde Tanzimat‟la birlikte (1839, o zamana kadardini eksende işleyen eğitim sistemi, artık dünyevi konuları ele alan,günlük hayatın pratik ihtiyaçlarına cevap veren farklı disiplinleri dekapsamaya başlamıştır. İnsanın ruhen ve bedenen de gelişmesigerektiği anlayışı ile sanat, spor ve el becerileri gerektiren derslerprogramlarda yer almaya başlamıştır. Müzik derslerinde kullanılanmüzik ders kitapları içinde Zati (Arca Bey‟in Talim-i Kıraat-i Mûsikîisimli eseri, Okul Müziği alanındaki ilk kitap olarak kabul edilmektedir.Kitap, pedagojik olarak

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

tele. Neposredstvennye izmerenija byli soprjazheny s nekotorymi jeksperimental'nymi zatrudnenijami, kak, naprimer, poluchenie zhelatel'noj intensivnosti i razreshenija i vvedenie nadlezhashhih popravok na mnogokratnoe rassejanie v obrazce. S tochki zrenija primenenija k tehnologii reaktorov poslednij metod poluchenija jader rassejanija okazalsja vo mnogih sluchajah bolee, udovletvoritel'nym. Provedennye integral'nye izmerenija odnovremenno so sravnitel'nymi raschetami spektrov nejtronov pozvoljajut vyskazat'sja otnositel'no sostojatel'nosti teoreticheskih modelej rassejanija dlja N{sub 2}O, D{sub 2}O i VeO. Dajutsja ukazanija otnositel'no spektrov, zavisjashhih ot ugla i polozhenija, izmerejnyh v N{sub 2}O i D{sub 2}O i otravlennyh borom ili kadmiem; jeti danny'e ukazyvajut na uluchshenie soglasovannostiteoreticheskimi velichinami. Po-vidimomu, model' Nelkina dlja N{sub 2}O daet dostatochno udovletvoritel'noe v pervom priblizhenii opisanie rassejanija, proizvodimogo jetim zamedlitelem. Nuzhno takzhe dumat', cht.o model' Goneka dlja D{sub 2}O, javljajushhajasja rasprostraneniem nekogerentnoj modeli Nelkina dlja N{sub 2}O, takzhe javljaetsja udovletvoritel'nym opisaniem dlja nekotoryh vidov primenenija. Jeto predstavljaetsja udivitel'nym, tak kak v protivopolozhnost' vodorodu dejterij javljaetsja v bol'shinstve sluchaev kogerentnym rasseivajushhim veshhestvom, no jeto obstojatel'stvo podtverzhdaet nedavnee issledovanie Koppelja, kotoryj pokazal, chto vklady vnutrimolekuljarnyh i mezhmolekuljarnyh interferencij rassejanija v D{sub 2}O imejut tendenciju annulirovat' drug druga. V doklade privodjatsja takzhe poluchennye zamerom zavisjashhie ot ugla spektry nejtronov v VeO, otravlennoj borirovannoj nerzhavejushhej stal'ju. Voobshhe govorja, soglasovannost' izmerenij s raschetami byla znachitel'no uluchshena. Teoreticheskoe jadro rassejanija osnovano na debaevskom spektre chastoty, porog kotoroj byl otregulirovan takim obrazom, chtoby soglasovat'sja s izmerenijami udel

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

Incorporation of Radioisotopes into Melted Silicates; Incorporation de Radioisotopes dans des Silicates Fondus; 0412 0412 0415 0414 0415 041d 0418 0415 0420 0410 0414 0418 041e 0418 0417 041e 0422 041e 041f 041e 0412 0412 0420 0410 0421 041f 041b 0410 0412 041b 0415 041d 041d 042b 0415 0421 0418 041b 0418 041a 0410 0422 042b ; Incorporacion de Radioisotopos en Silicatos Fundidos

Energy Technology Data Exchange (ETDEWEB)

Rakova, J.; Saidl, J. [Nuclear Research Institute Rez near Prague, Czechoslovak Socialist Republic (Czech Republic)

1963-02-15

corrosividad de la estructura y por la difusion interna de elementos solubles del interior del solido hacia la superficie del mismo. La corrosividad de los vidrios y de las rocas fundidas se. ha examinado en condiciones estaticas a temperatura constante (35 Degree-Sign , 60 Degree-Sign y 90 Degree-Sign C) obteniendose coeficientes de lixiviacion comprendidos entre 10{sup -11} y 10{sup -9} cm{sup -2}s{sup -1}(a 35 Degree-Sign C). Estos resultados muestran que los materiales investigados constituyen un medio adecuado para la incorporacion de algunos desechos de elevada radiactividad. Este metodo de evacuacion puede considerare completamente seguro, siempre que los bloques activos asi formados se depositen en condiciones que excluyan la posibilidad de contacto con el agua. (author) [Russian] Cel'ju dannoj issledovatel'skoj raboty javljaetsja: 1. Vybor kamenistyh i steklovidnyh silikatnyh materialov, prigodnyh dlja vvedenija biologicheski opasnyh i dolgozhivushhih radioizotopov. 2. Opredelenie faktorov, kotorye mogut okazyvat' vlijanie na skorost' vysvobozhdenija vvedennyh izotopov, chtoby oni ne predstavljali opasnosti dlja biosfery. V kachestve syr'evyh materialov ispol'zovalis' 14 sortov rasplavlennyh porod bazal'tovogo tipa iz severnoj i zapadnoj Bogemii i tri sorta otdel'nyh vidov stekla. Pri jeksperimental'nom issledovanii dolzhnoe vnimanie udeljalos' diffuzii radioizotopov v stekov i v rasplavlennyh porodah a takzhe himicheokoj ustojchivosti jetih materialov. Dlja issledovanija Diffuzii stroncija-90 i-cezija-134 byl vybran metod {sup t}onkogo sloja{sup ,} opisannyj Krjukovym i Zhukovickim, kak naibolee podhodjashhij. Pri temperaturah porjadka 300 - 600 Degree-Sign C byli ustanovleny kojefficienty diffuzii 10{sup -13} - 10{sup -11}cm{sup 2}/sek. Tot fakt, chto dlja cezija byla obnaruzhena bolee nizkaja jenergija aktivacii, chem dlja natrija, podtverzhdaet predpolozhenie o tom, chto iz vseh stekloobrajeuhhcih jelementov cezij imeet naimen'shie svjazi. Pri izmerenii skorosti

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

H{sub 2}O, con muestras de espesor y orientacion diferentes para cotejar los resultados con los calculos basados en varios modelos de dispersion con enlaces hidrogeno, y para compararlos tambien con los trabajos de Springer y Reinsch. Las mediciones experimentales se han corregido para compensar los acusados efectos de la dispersion multiple en las muestras. En la actualidad, la pronunciada variacion prevista para una energia neutronica de 0,06 eV, aproximadamente, por el modelo de dispersion de Nelkin no se observa experimentalmente debido a que el rotor monorrestringido que se considera a 0,06 eV, no es realista desde el punto de vista fisico. Ademas, este modelo simple no describe satisfactoriamente la dispersion a grandes angulos. Los datos experimentales sirven para varios fines. En primer lugar, las distribuciones angulares son muy sensibles a las propiedades fisicas del modelo de dispersion y permiten verificar su validez. En segundo lugar, los resultados experimentales son sensibles a la dispersion P{sub n} de orden superior, a diferencia de muchos experimentos integrales, que son sensibles sobre todo a la dispersion P{sub 0}: en particular es posible comprobar el nucleo de dispersion P{sub 1} apropiado para un modelo molecular determinado. Por ultimo, la seccion eficaz de transporte puede calcularse directamente a partir de los datos experimentales y utilizarse para el analisis de reactores por el metodo de varios grupos. (author) [Russian] Izmerenija sechenij (d{sigma}/d {Omega})odnokratnogo differencial'nogo rassejanija nejtronov dlja zamedlitelej obychnyh vidov provoditsja po metodu izmerenija vremeni proleta. Metod predusmatrivaet ispol'zovanie intensivnogo pul'sirujushhego istochnika teplovyh nejtronov, proizvodimyh linejnym uskoritelem obshhestva ''Dzheneral atomik'' s dlinoj proleta v 12m, v konce kotorogo raspolagaetsja tonkij obrazec issleduemogo zamedlitelja. V dopolnenie k jetomu imeetsja eshhe konechnyj put' proleta dlja rassejannyh obrazcov

Electronic Modification of the Scintigram and its Limitations; Modification Electronique des Scintigrammes: Limitations; Ehlektronnoe usovershenstvovanie stsintigrammy i ego ogranicheniya; Modificacion Electronica de los Centelleogramas: Sus Limitaciones

Energy Technology Data Exchange (ETDEWEB)

Conrad, B.; Horst, W. [University Clinic for Radiotherapy and Nuclear Medicine Cantonal Hospital, Zurich (Switzerland)

1964-10-15

sobljudat' nekotorye o s novnye zakonomernosti dlja togo, chtoby poluchit' maksimum informacii. Jeti zak on om ernosti razrabotany pri ispol'zovanii sledujushhih parametrov i funkcij, kotorye v celom harakterizujut transformirujushhie sistemy vseh vidov: 1. Jelementarnaja jachejka pervichnoj informacii, opredelja em aja intervalami vremeni ili predvaritel'no otobrannym chislom o tschetov, it.d. 2. Funkcija preobrazovanija informacii, v sootvetstvii s kotoroj jelementarnaja jachejka . predstavljaetsja na scintigramme (naprimer, stepen'ju potemnenija fotopjatna). Chasto jet a funkcija r a ssmatri v aet sja kak okonchatel'naja harakteristika transformirujushhej sistemy; odnako jet o spravedlivo tol'ko pri neznachitel'nyh statisticheskih kolebanijah. 4 Povedenie transformirujushhej si st emy , vkljuchaja st atisticheskie kolebanija, opisyvaetsja sledujushhimi funkcijami, kotorye pokazyvajut kachestvo scintigrammy s kolichestvennoj tochki zrenija. 3. Funkcija generacii snimka, v sootvetstvii s kotoroj srednjaja velichina skorosti scheta v zon e transformiruetsja v sredne e potemnenie sootvetstvujushhej zony na scintig ramme. Jeta funkcija da et kontrastnoe usi lenie. 4. Funkcija dostovernosti, kotoraja opisyvaet poterju informacii, prichinennuju transformaciej. Jeta funkcija da et stepen' pravil'nosti vosproizvedenija izobrazhenija. Na osnove vysheukazannyh opredelenij v doklade rassmatrivajutsja sledujushhie problemy: optimal'nyj ''razmer'' jachejki pervichnoj informacii v zavisimosti ot razreshajushhej sposobnosti detektora; optimal'naja forma transformirujushhej funkcii dlja razlichnyh celej; nekotorye jelektronnye kontury dlja realizacii takih funkcij. V chastnosti budet podrobno opisan pribor, kotoryj daet optimal'noe znachenie linejn ogo predstavlenija pri ispol'zovanii sootvetstvujushhim obra zom podobrannoj nelinejnoj transformirujushhej funkcii. Takim obrazom, interval chistoj skorosti scheta v promezhutke mezhdu fonovoj i maksimal'noj skorost'ju scheta proeciruetsja

Radiation Polymerization in the Solid Phase; Polymerisation radiochimique en phase solide; Radiatsionnaya polimerizatsiya v tverdoj faze; Radiopolimerizacion en fase solida

Energy Technology Data Exchange (ETDEWEB)

Barkalov, I. M.; Gol' danskij, V. I.; Enikolopov, N. S.; Terekhova, S. F.; Trofimova, G. M.

1963-11-15

energfa de activacion, a diferencia de la postpolimerizacion lenta, que exige la misma energia de activacion que el proceso en fase liquida. (author) [Russian] Radiatsionnoj polimerizatsii tverdykh i zamorozhennykh monomerov za poslednee vremya udelyaetsya bol'shoe vnimanie. EHtot vopros predstavlyaet bol'shoj interes kak s prakticheskoj tochki zreniya, tak i s tochki zreniya novykh teorij khimicheskoj kinetikich radiatsionnoj khimii. Kak izvestno, strogaya prostranstvennaya uporyadochennost' monomernykh edinits v polimere obuslavlivaet rezkoe uluchshenie fiziko-mekhanicheskikh svojstv bez izmeneniya khimicheskogo sostava. Dlya sinteza stereoregulyarnykh polimerov ispol'zuetsya printsip matritsy, t.e. monomernaya edinitsa strogo orientiruetsya v prostranstve putem obrazovaniya kompleksa s katalizatorom ili kakim-libo drugim veshchestvom. Naprimer, pri radiatsionnoj polimerizatsii ryada monomerov, orientirovannykh v klatratnykh kompleksakh mocheviny i tiomocheviny, polucheny kristallicheskie stereopegulyarnye polimery. Odnako naibolee prostym variantom yavlyaetsya orientatsiya monomera v sobstvennoj kristallicheskoj reshetke. Khotya mnogie teoreticheskie voprosy v ehtoj oblasti ostayutsya neyasnymi, prakticheskoe ispol'zovanie ehtogo sposoba ves'ma zamanchivo. Tak, pri radiatsionnoj polimerizatsii kristallicheskogo trioksana uzhe poluchen vysokokristallicheskij polioksimetilen. Trebuetsya, odnako, dal'nejshaya teoreticheskaya razrabotka ehtogo metoda. Neobkhodimo dlya kazhdogo otdel'nogo monomera vyyasnit' vklad razlichnykh vidov reaktsij, proiskhodyashchikh pri obluchenii i posleduptsem plavlenii tverdykh monomerov (spetsificheskaya radiatsionnaya reaktsiya, postpolimerizatsiya i polimerizatsiya v tochkakh fazovykh perekhodov) v obshchuyu kartinu protsessa. Vypolnennoe v poslednee vremya v Institute khimicheskoj fiziki podrobnoe issledovanie kinetiki radiatsionnoj tverdofaznoj polimerizatsii ryada monomerov s primeneniem kalorimetricheskogo metoda i s nablyudeniem signala

Role of Exchange Equilibria in Structural Chemistry; Role des Equilibres d'Echange en Chimie Structurale; Rol' ravnovesiya obmena v strukturnoj khimii; Papel de los Equilibrios de Intercambio en Quimica Estructural

Energy Technology Data Exchange (ETDEWEB)

Van Wazer, J. R.; Moedritzer, K. [Monsanto Company, St. Louis, MI (United States)

1965-10-15

, sostavlennyh v laboratorii kompanii Monsanto, gde rabotaet avtor (sm. snoski [1 - 34] v konce annotacij. Izuchennye takim obrazom sistemy vkljuchajut rjad novyh vidov soedinenij, prichem kolichestvo i rod produktov, poluchennyh v rezul'tate reakcij obmena, byli kolichestvenno opisany v zavisimosti ot nebol'shogo chisla konstant ravnovesija. Dlja opredelenija vida i minimal'nogo chisla konstant ravnovesija, svjazyvajushhih drug s drugom neciklicheskie struktury i chasti molekuljarnyh struktur, byl ispol'zovan novyj matematicheskij podhod, a imenno teorija stohasticheskih diagramm. Po- mimo jetogo, byl proizveden kolichestvennyj razbor uslovij ravnovesija mezhdu ciklicheskimi i neciklicheskimi strukturami. To obstojatel'stvo, chto v strukturnoj himii upor stavitsja .na soedinenija ugleroda (chto dokazyvaetsja razdeleniem opisatel'noj himii na organicheskuju i neorganicheskuju chasti), ob{sup j}asnjaetsja tem, chto reakcii obmena, zatragivajushhie svjaz' S - ili svjaz' ugleroda s lju- bym atomom, ne imejushhim nizkolezhashhih vakantnyh orbit svjazi (naprimer, Si, Ge, N, P, As, O, S, Se, F , Cl, Br) protekajut chrezvychajno medlenno. S drugoj storony, sushhestvujut shi- rokie oblasti neorganicheskoj himii, kotorye v prezhnee vremja ostavalis' neopisannymi vvidu togo, chto molekuly podvergajutsja nastol'ko bystrym reakcijam obmena, chto ih nevoz- mozhno vyjavit' razdel'no. Odnako jeti reakcii mogut byt' vyjavleny i opredeleny kolichest- venno fizicheskimi sposobami (kak naprimer, jadernym magnitnym rezonansom), imejushhimi korotkie konstanty vremeni, pri uslovii nadlezhashhej matematicheskoj obrabotki poluchaemyh dannyh, chto javljaetsja dostatochno slozhnoj proceduroj, chtoby trebovat' ispol'zovanija schetno- reshajushhih ustrojstv [6, 16]. Upomjanutye vyshe temy budut illjustrirovany primerami konkretnyh sistem [2, 12, 24, 28], vybrannyh sredi nedavnih rabot avtora doklada. Pomimo issledovanij ravnovesija, budet udeleno dolzhnoe vnimanie kinetike [26, 27] uchastvujushhih v obmene

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

Radiotracer Approaches to Carbamate Insecticide Toxicology; Emploi des radio indicateurs pour l'etude de la toxicologie des insecticides a base de carbamates; Primenenie radioaktivnykh indikatorov dlya izucheniya toksikologii karbamatnykh insektitsidov; Estudio con radioindicadores de la toxico logia de los insecticidas a base de carbamatos

Energy Technology Data Exchange (ETDEWEB)

Casida, J. E. [University of Wisconsin, Madison, WI (United States)

1963-09-15

metabolizma karbamatnykh insektitsidov. Sevin (1-naphtyl N-methylcarbamate) byl naibolee tshchatel'no izuchen parallel'no s vozmozhnymi produktami ego gidroliza. Issledovaniya s pomoshch'yu ugleroda-14 ne podtverdili gipotezy o tom, chto pri metabolizme sevina proiskhodit pervonachal'nyj gidroliz, a zatem dal'nejshee razlozhenie produktov gidroliza. Osnovnoj mekhanizm obezvrezhivaniya insektitsida v organizme mlekopitayushchikh i, veroyatno, nasekomykh zaklyuchaetsya v pervonachal'nom okislyayushchem vozdejstvii mikrosom na kehrbamaty v prisutstvii vosstanovlennogo nikotinamid-adenindi-nukleotid fosfata. Sevin bystro podvergaetsya raspadu u mlekopitayushchikh, no sud'ba nekotorykh produktov raspada eshche ne vyyasnena. Nekotorye iz produktov metabolizma mogut byt' obnaruzheny v moloke zhivotnykh. Odnoj iz stupenej metabolizma, po-vidimomu, yavlyaetsya obrazovanie proizvodnogo N-metilola. Predvaritel'nye issledovaniya metabolizma mechennogo radioaktivnymi veshchestvami dime-tilana (2-dimetilkarbamid-3-metilpirazolil-(5)-dimetilkarbamat) i metabolizma podobnogo soedineniya u tarakanov ukazyvaet takzhe na to, chto pri okislenii obrazuyutsya proizvodnye N-metila i N-metilola. Mnogoe ostaetsya sdelat' dlya vyyasneniya svyazi ehtikh reaktsij obezvrezhivaniya s mekhanizmom soprotivlyaemosti, dejstviem sinergistov, selektivnoj toksichnost'yu ehtoj gruppy insektitsidov, a takzhe s prirodoj i znacheniem ostatkov insektitsida. Metabolizm sevina, vvedennogo v rasteniya, nosit, veroyatno, takzhe skoree okislitel'nyj, a ne gidroliticheskij kharakter, ko kharakter produktov i fermentativnye mekhanizmy eshche ne ustanovleny. (author)

Standardization of Radionuclides in the Electrotechnical Laboratory, Tokyo; Etalonnage des radionuclides au Laboratoire d'electrotechniqu e de Tokyo; Standartizatsiya radioizotopov v ehlektrotekhnichesko j laboratorii v Tokio; Normalizacion de radionuclidos en el Laboratorio de Electrotecnica de Tokio

Energy Technology Data Exchange (ETDEWEB)

Naito, Masashi; Inouye, Yajiro; Yura, Osamu [Electrotechnical Laboratory, Tokyo (Japan)

1960-06-15

metodo se midio la actividad de los nuclidos Sr{sup 90}-Y{sup 90}, So{sup 60} y Cs{sup 187}. La preci- sion de las mediciones fue del orden de +{+-} 2%. 2) Recuento {alpha} 2 {pi}. - Se midio la radiactividad de muestras de RaD + RaE + RaF, U{sup 238} y Po{sup 210} utilizando el mismo aparato que en el metodo de recuento |3 4 l. La precision de las mediciones fue de {+-} 2, {+-} 1 y {+-} 1%, respectivamente. 3) Recuento por coincidencias. - Para aplicar este metodo, se emplearon aparatos de recuento {beta}-{gamma}-y {gamma}-{gamma}. Como detector de rayos {gamma} se utilizo un contador de centeleo [cristal de Nal (TI) de 1 pulgada de diametro y 1 pulgada de largo] y como detector de rayos{beta} un contador Geiger-Mueller. Recientemente, para estudiar las diferencias existentes entre el metodo de recuento {beta} 4{pi}y el de coincidencias, en lugar de utilizar un contador Geiger- Mueller, los autores recurrieron a un modelo especial de contador proporcional {beta} 4 {pi}, que puede ser tambien empleado independientemente , es decir, sin los circuitos de coincidencia. Los resultados obtenidos con el metodo de coinci dencias {beta}-{gamma} difieren ligeramente (3-4%) de los alcanzados con el metodo {beta} 4 {pi} La discrepancia puede deberse a la autoabsorcion. En cambio, los resultados del metodo de coincidencias {gamma}-{gamma} para el So{sup 60} concuerdan con los obtenidos al aplicar el metodo de coincidencias {beta}-{gamma}. (author) [Russian] Posle 1953 goda v ehlektrotekhnichesko j laboratorii s pomoshch'yu vychislitel'nog o metoda 4 {pi} {beta}-scheta i metoda sovpadenij bylo proizvedeno absolyutnoe izmerenie nekotorykh izotopov. Podrobnosti metoda vychislenij v nashej laboratorii budut opisany v sleduyushchem poryadke: 1) Metod 4 ({pi}) ({beta})-scheta. Byl skonstruirova n zvonkovyj gazovyj pro- portsional'nyj schetchik 4 ({pi}) ({beta})-izluchenij. Byli issledovany ego vychislitel'nye kharakteristiki , v osobennosti nadezhnost' takikh primenyaemykh gazov. Pri

Nuclear Materials Management in a Recovery Facility for Unirradiated Enriched Uranium; Gestion des Matieres Nucleaires dans une Installation de Recuperation d'Uranium Enrichi Non Irradie; Administrativno-khozyajstvennyj uchet yadernykh materialov na ustanovke po regeneratsii neobluchennogo obogashchennogo urana; Administracion de Materiales Nucleares en una Planta de Recuperacion para Uranio Enriquecido No Irradiado

Energy Technology Data Exchange (ETDEWEB)

Jasny, G. R. [Union Carbide Corporation, Oak Ridge, TN (United States)

1966-02-15

izvlekajutsja razlichnye vidy neobluchennogo obogashhennogo urana. V nastojashhee vremja usta- novka Y-12 po regeneracii osnashhena polunepreryvnoj potochnoj liniej, vkljuchaja rastvorenie, szhiganie, vyparivanie, izvlechenie, denitraciju i gidroflorinaciju produkta. Oborudovanie po pererabotke i hraneniju imeet ogranichennye razmery i obladaet obshhej propusknoj sposob- nost'ju v neskol'ko sot kilogrammov obogashhennogo urana v mesjac. Snabzhenie dlja processov izvlechenija postupaet kak s samoj ustanovki, tak i iz drugih predprijatij Komissii po atom- noj jenergii v Soedinennyh Shtatah. V tot ili inoj moment jeto snabzhenie vkljuchaet lom ne- obluchennogo obogashhennogo urana prakticheski vseh vozmozhnyh vidov. Fizicheskij kontrol' uspeshno osushhestvljaetsja blagodarja sledujushhim faktoram: 1. Tshhatel'nost' konstruirovanija oborudovanija, chto obespechivaet vozmozhnost' chistki i vyborki prob i svodit k minimumu zahvat materialov. 2. Nepreryvnyj dozimetricheskij kontrol' vseh othodov i putej prohozhdenija othodov i jeffluentov kak cherez sistemu kanalizacii, tak i cherez vytjazhnye truby, a takzhe nad radioak- tivno zagrjaznennym musorom. 3. Periodicheskie fizicheskie proverki nalichnyh materialov. 4. Tshhatel'naja vyborka prob i analiz ih kak po vneshnim putjam snabzhenija matermalami, tak i po putjam prohozhdenija produkta. 5. Strogij kontrol' nad kachestvom analiza i vyborki prob. 6. Vozlozhenie otvetstvennosti za uchet materialov na operativnyj, a ne na uchetnyj personal. 7. Tshhatel'nyj instruktazh operativnogo personala. Informacija, postupajushhaja v sistemu ucheta jadernyh materialov, sobiraetsja pri pomoshhi sistemy kartochek, blizko soprovozhdajushhih fizicheskij put' prohozhdenija materialov; inache govorja, tozhdestvo kazhdoj partii sohranjaetsja pri pomoshhi sootvetstvujushhej kartochki, i otdel pouch e tu jadernogo materiala uvedomljaetsja ob udalenii partii posredstvom peredachi emu sootvetstvujushhej kartochki jetoj partii. Bol'shaja chast' uchetnyh

Continuous Calcination of High-Level Radioactive Wastes by Means of a Rotary-Ball Kiln; Calcination Continue de Dechets de Haute Activite dans un Four Rotatif a Billes; 041d 0415 041f 0420 0415 0420 042b 0412 041d 041e 0415 041a 0410 041b 042c 0426 0418 041d 0418 0420 041e 0412 0410 041d 0418 0415 0412 042b 0421 041e 041a 041e 0410 041a 0422 0418 0412 041d 042b 0425 041e 0422 0425 041e 0414 041e 0412 0412 041e 0412 0420 0410 0429 0410 042e 0429 0415 0419 0421 042f 0428 0410 0420 041e 0412 041e 0419 041f 0415 0427 0418 ; Calcinacion Continua de Desechos de Elevada Radiactividad en un Horno de Bolas Rotatorio

Energy Technology Data Exchange (ETDEWEB)

Regan, W. H.; Hatch, L. P.; Domish, R. F. [Brookhaven National Laboratory, Upton, Long Island, NY (United States)

1963-02-15

giratorio para gases, a la vez que se exponen los resultados del funcionamiento de la instalacion piloto con una carga simulada de desechos inactivos de nitrato de aluminio. (author) [Russian] Kal'cinirovanie vodnyh othodov vysokoj aktivnosti s bol'shim soderzhaniem soli s cel'ju prevrashhenija osnovnyh solej v ustojchivyj tverdyj material predstavljaet znachitel'nye preimushhestva dlja okonchatel'nogo udalenija othodov- tak k k pozvoljaet znachitel'no sokratit' ob'em othodov i tem samym uprostit' ih dlitel'noe hranenie. Sredi othodov, obychno prednaznachaemyh dlja kal'ciniro. dnija, imejutsja othody, obrazujushhiesja pri vodnoj pererabotke teplovydeljajushhih jelementov iz aljuminievyh i cirkonievyh splavov, a takhe pri pererabotke teplovydeljajushhih jelementov s obolochkoj iz nerzhavejushhej stali ili snabzhennyh reshetkami iz nerzhavejushhej stali. Razlozhenie osnovnoj massy solej, soderzhashhihsja v othodah, a imenno - nitrata aljuminija, ftoristogo cirkonija i nitrata zheleza do ih sootvetstvujushhih sgoslov vydvigaet celyj rjad trudnyh tehnologicheskih problem. Bol'shej chast'ju jeti problemy voznikajut iz-za obrazovanija vysokoradioaktivnyh tverdyh chastic, mnogie iz kotoryh imejut ochen' malyj, inogda mikronnyj, razmer. Odin iz perspektivnyh vidov obzhigatel'noj pechi v Brukhejvenskoj nacional'noj laboratorii osnovan na principe vrashhajushhejsja sharovoj pechi. V osnovnom jeto ustrojstvo sostoit iz medlenno vrashhajushhejsja gorizontal'noj truby s naruzhnym jelektricheskim nagrevom. Ishodnyj rastvor vvoditsja v pech' pri pomoshhi raspredelitel'nogo sopla i popadaet na raskalennuju poverhnost' metallicheskih sharov, lezhashhih tonkim sloem; shary sposobstvujut peredache tepla i prepjatstvujut obrazovaniju, vo vremja kal'cinirovanija, krupnyh konglomeratov. Kal'cinirovannye tverdye veshhestva vysypajutsja iz vyhodnogo konca pechi v special'nyj priemnik. Konstrukcija pechk predusmatrivaet nepreryvnost' dejstvija, obespechivaet horoshuju peredachu tepla vnutr' i

Irradiation of Poultry and Egg Products; Irradiation de la Volaille et des Ceufs et Derives; Obluchenie domashnej ptitsy, yaits i izdelij iz nikh; Irradiacion de Volateria, Huevos y Productos Derivados

Energy Technology Data Exchange (ETDEWEB)

Thornley, Margaret J. [Sub-Department of Chemical Microbiology, Department of Biochemistry, University of Cambridge, Cambridge (United Kingdom)

1966-11-15

, tak chto 20 dnej pri 1 Degree-Sign C javljajutsja primerno naibolee podhodjashhim srokom bez uhudshenija kachestva. Mehanizm jetih izmenenij eshhe ne ponjat, odnako oni imejut mesto ne iz-za mikrobiologicheskoj porchi ili obluchenija. . Vozmozhnaja mikrobiologicheskaja porcha obluchennyh kur pri nizkih temperaturah vyzyvaetsja nepatogennymi bakterijami, kotorye obychno imejutsja v mikrobiologicheskoj flore, vyzyvajushhej porchu produktov, hotja inogda sootnoshenie razlichnyh vidov jetih bakterij mozhet izmenjat'sja, chto privodit k pojavleniju razlichnyh 'dopolnitel'nyh' zapasov. Primenenie jetogo processa izuchalos' v Anglii v otnoshenii proizvodstva i raspredelenija cypljat-brojlerov i v nastojashhee vremja osushhestvljaetsja sovmestnoe issledovanie Komissiej po atomnoj jenergii SShA, organizaciej Atomik Jenerdzhi of Kanada limited i Natikskimi laboratorijami intendantskogo upravlenija armii SShA. Ono ohvatit jekonomicheskie potrebnosti i preimushhestva, celostnost, podgotovku produktov, upakovku i odobrenie potrebiteljami. (author)

Interpretation of Bioassay Data; Interpretation des Donnees de l'Analyse d'Echantillons Biologiques; Interpretatsiya dannykh biologicheskikh issledovanij; Interpretacion de Datos Obtenidos por Bioanalisis

Energy Technology Data Exchange (ETDEWEB)

Dolphin, G. W.; Jackson, S. [Health Physics and Medical Division, Atomic Energy Research Establishment, Harwell, Berkshire (United Kingdom)

1964-10-15

a un nivel determinado de la carga corporal. Es esencial que las mediciones para la vigilancia regular se efectuen con la maxima precision y se registren minuciosamente. Tales mediciones pueden utilizarse mucho tiempo despues para evaluar la carga corporal cronica. Se resumen los datos disponibles acerca del metabolismo humano y de la excrecion por via urinaria del tritio, cesio, uranio, estroncio, radio y plutonio. (author) [Russian] Dlja ocenki dozy obluchenija kriticheskogo organa, svjazannoj s vnutrennim zarazheniem radioizotopami, neobhodimo opredeljat' kolichestva izotopov v organizme. Esli radioizotop javljaetsja istochnikom gamma- ili rentgenovyh luchej ili beta-izluchenija, vyzyvajushhego sootvetstvujushhee tormoznoe izluchenie, prjamye izmerenija soderzhanija ego b organizme mogut proizvodit'sja s pomoshh'ju ustanovki dlja izmerenija radioaktivnosti vsego organizma. Kogda zhe sootvetstvujushhie izluchenija otsutstvujut, opredelenija-proizvodjatsja s pomoshh'ju izmerenija kolichestva radioizotopov v vydelenijah, krovi, vdyhaemom vozduhe ili mazkah, vzjatyh iz nosovoj ili rotovoj polosti. Provodilos' izuchenie vydelenija radioizotopov v moche kak pokazatelja vnutrennego zarazhenija. Analiz mochi javljaetsja naibolee shiroko ispol'zuemoj formoj biologicheskogo analiza. .Ochen' ver'eznym nedostatkom vse eshe javljaetsja maloe kolichestvo dannyh ob obmene radioizotopov, i neobhodimy dal'nejshie issledovanija. V dannom obzore dlja klassifikacii razlichnyh vidov obmena raznoobraznyh izotopov ispol'zovany tri bol'shie grupp'k Pervaja gruppa vkljuchaet*te radioizotopy, kotorye dovol'no odnorodno raspredeljajutsja v organizme. Vtoraja gruppa soderzhit te, kotorye koncentrirujutsja glavnym obrazom v odnom ili bolee organah tela. Tret'ja gruppa fakticheski javljaetsja osobo vazhnoj podgruppoj vtoroj gruppy i soderzhit otkladyvajushhiesja v kostjah izotopy. Vydelenie s mochoj i osobenno ego svjaz' s dozoj, poluchaemoj kriticheskimi tkanjami, otchetlivo razlichaetsja

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

, intensivnost' kotoroj rezko oslablyaetsya s uvelicheniem srednego atomnogo nomera ehlementov sredy. EHtim metodom uspeshno vydelyayutsya rudnye zony s tyazhelymi ehlementami (svinets, vol'fram, rtut' i dr.). CHuvstvitel'nost' metoda poryadka 0,01 % SGGK uspeshno primenyaetsya na zhelezorudnykh (sideritovykh) mestorozhde- niyakh. Anomal'no bol'shoe sechenie zakhvata teplovykh nejtronov borom pozvolyaet vydelyat' v razreze skvazhin boronosnye zony metodami NGK i NNK. Meshayushchee vliyanie vody isklyuchaetsya inversionnymi zondami. EHti nejtronnye metody, a takzhe nejtronno-aktivatsionnyj karotazh nashli primenenie takzhe na mestorozhdeniyakh medi, margantsa, alyuminiya i nekotorykh drugikh. Nepreryvnyj aktivatsionnyj karotazh tselesoobrazen pri podkhodyashchem periode poluraspada voznikayushchego radioaktivnogo izotopa. Pri ehtom teoriya pozvolyaet ustanovit' optimal'nye usloviya karotazha (skorost', dlina zonda i t.d.). Registratsiya nejtronov pri foto-nejtronnom karotazhe pozvolyaet vydelyat' zony, obogashchennye berilliem, i otsenivat' soderzhaniya ehtogo ehlementa, nachinaya s 0,001%. Opyt podtverzhdaet ehffektivnost' i ehkonomicheskuyu tselesoobraznost' primeneniya metodov yadernoj geofiziki pri razvedke rudnykh i ugol'nykh mestorozhdenij. (author)

Food Irradiation Research and Pilot Facilities in Operation or Planned in India; Recherches sur l'irradiation des Denrees Alimentaires et Installations Pilotes en Service ou a l'Etude en Inde; Izuchenie oblucheniya pishchevykh produktov' i dejstvuyushchie'i zaplanirovannye opytnye ustanovki v Indii; Irradiacion de Alimentos en la India: Investigaciones y Plantas Piloto en Servicio o en Proyecto

Energy Technology Data Exchange (ETDEWEB)

Kumta, U. S.; Sreenivasan, A. [Atomic Energy Establishment Trombay, Bombay (India)

1966-11-15

(40% vlazhnosti) pri komnatnoj temperature (25 - 28 Degree-Sign S) bolee chem do 150 dnej. Jetot process byl issledovan s tochki zrenija dopustimoj dozy obluchenija, sinergichnogo jeffekta sarbinovoj kisloty, uluchshenija kachestva v rezul'tate drugih vidov fizicheskoj i himicheskoj obrabotki i vida upakovochnogo materiala. Pojavlenie pleseni i nezhelatel'nyh zapahov okislenija u syra mozhet byt' zaderzhano primerno na 20 dnej pri komnatnoj temperature v rezul'tate obluchenija slabymi dozami (0,1 i 0,2 Mrad) i primenenija obertki, pokrytoj sarbinovoj kislotoj. Radiacionnoe povrezhdenie belkov ryby bylo izucheno s tochki zrenija stepeni ih rasshheplenija, skoplenija, jeffekta raskrytija i jelektroforeznoj podvizhnosti. Obnadezhivajushhie rezul'taty byli polucheny pri primenenii radiacii dlja dezinfesta- cii zerna i prodlenija sroka hranenija indijskogo hleba. Prodolzhaetsja izuchenie izmenenij sostava i pitatel'nosti obluchennoj pshenicy. Opisany sushhestvujushhie i zaplanirovannye ustanovki dlja obluchenija. Laboratorija obluchenija i obrabotki pishhevyh produktov, kotoraja budet gotova v skorom vremeni, budet imet' sbornyj obluchatel' s kobal'tom-60 (100 000 kjuri), portativnyj obluchatel' dlja zerna s kobal'tom-60 (28000 kjuri) i drugie ustanovki dlja obluchenija pishhevyh produktov, a takzhe analiticheskie i issledovatel'skie laboratorii. Predusmotrennaja proizvoditel'nost' sbornogo obluchatelja sostavljaet 100 funtov/chas pri doze. 0,5 Mrad, a portativnogo obluchatelja - 500 funtov/chas zerna pri doze 15 krad. (author)

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

vkhodnym konturam malogo vkhodnogo kompleksnogo soprotivleniya, prikhoditsya neskol'ko peresmatrivat' ehti kontury. Rassmatrivayutsya i sravnivayutsya drug s drugom tri vkhodnykh kontura, a imenno (No. 1) po vidu napryazheniya, (No. 1) po vidu napryazheniya i toka i (No. 3) po vidu toka. Kontur No. 1 ochen' pokhozh na obychnyj kontur s ehlektronnymi lampami. Byl postroen chuvstvitel'nyj sledyashchij mekhanizm izlucheniya al'fa-luchej s katodnoj nagruzkoj i so smeshcheniem obratnoj svyazi; on byl uspeshno ispol'zovan bez ushcherba dlya ustojchivosti postoyannogo toka v kachestve kontura s bol'shim vkhodnym kompleksnym soprotivleniem svyshe 10 megaomov. Bol'shaya chast' radiatsionnykh detektorov mozhet rassmatrivat'sya kak generatory toka. Takim obrazom, vykhodnye signaly detektorov mogut napravlyat'sya v usilitel' toka s malym vkhodnym kompleksnym soprotivleniem. EHto ustrojstvo sootvetstvuet vidu No. 3, i ono daet velikolepnuyu amplitudu impul'sa, no vvidu bystrogo toka impul'sov i maloj vkhodnoj integriruyushchej konstanty vremeni verkhnij predel chastoty usilitelya dolzhen prevyshat' 10 megagerts. Ustrojstvo No. 2 yavlyaetsya kombinatsiej vidov No. 1 i No. 3. Signaly detektora napravlyayutsya cherez soprotivlenie priblizitel'no v 100 kiloomov v usilitel' toka s malym vkhodnym kompleksnym soprotivleniem. Soprotivlenie izmenyaet vkhodyashchuyu integriruyushchuyu konstantu vremeni do nuzhnoj velichiny i snizhaet trebovaniya, pred{sup y}avlyaemye k verkhnemu predelu chastoty ehlektronnogo kontura priblizitel'no do 2 megagerts. Bolee togo, ehto ustrojstvo pozvolyaet sokhranit' proportsional'noe sootnoshenie mezhdu amplitudoj impul'sa i ehnergiej radiatsii. Omicheskoe soprotivlenie sluzhit takzhe predokhranitel'nym ustrojstvom dlya gazovykh detektorov. Kabel', soedinyayushchij soprotivlenie s usilitelem toka, mozhet byt' prolozhen na rasstoyanie bolee 500 metrov bez iskazheniya formy impul'sa, pri uslovii ispol'zovaniya koaksial'nogo kabelya i pri uslovii, chto vkhodnoe

Comparison Of The Worth Of Critical And Exponential Measurements For Heavy-Water-Moderated Reactors; Valeur Relative des Mesures Critiques et Exponentielles pour l'Etude des Reacteurs Ralentis a l'Eau Lourde; Sravnenie tsennosti kriticheskikh i ehksponentsial'nykh izmerenij dlya reaktorov s tyazhelovodnym zamedlitelem; Valor Relativo de las Mediciones Criticas y Exponenciales para los Reactores Moderados por Agua Pesada

Energy Technology Data Exchange (ETDEWEB)

Graves, W. E.; Hennelly, E. J. [Savannah River Laboratory, E.I. Du Pont De Nemours and Co., Aiken, SC (United States)

1964-02-15

para determinar el coeficiente termico del laplaciano para un calentamiento uniforme del reticulado. En el SRL hay una instalacion especial, el PSE, que permite establecer dicho coeficiente hasta temperaturas de 215 Degree-Sign C. En cambio, para un calentamiento no uniforme, se prefiere generalmente los conjuntos criticos. 5. Reticulados mixtos En los reactores en funcionamiento raramente se usan los reticulados uniformes simples a los cuales se aplican basicamente los experimentos exponenciales. En el SRL se recurre a los experimentos criticos con cargas mezcladas, tanto para medir los efectos directos en maquetas, como para verificar la correccion de los calculos de difusion en medios heterogeneos y bidimensionales. 6. Estudios de la criticidad en agua ligera de un combustible destinado a reticulados de agua pesada Se ha comprobado que los experimentos exponenciales del laboratorio del SRL son particularmente valiosos para los estudios de criticidad encaminados a encontrar metodos seguros de manipulacion en agua ligera del combustible enriquecido. Estos trabajos no exigen una exactitud muy grande, y cabe senalar que los estudios de tipo general del laplaciano efectuados en conjuntos exponenciales son decididamente preferibles a los estudios especializados con conjuntos criticos. (author) [Russian] Kriticheskie i jeksponencial'nye jeksperimenty dajut, kak pravilo, chastichno perekryvajushhiesja dannye po reaktornym reshetkam. V techenie poslednih desjati let v Laboratorii Savanna-River rabotali parallel'no tjazhelovodnaja kriticheskaja ustanovka PDP i jeksponencial'naja ustanovka SE. Obobshhaetsja opyt s cel'ju dat' rekomendacii v otnoshenii primenenija jetih dvuh ustanovok dlja razlichnyh jeksperimentov. Rassmatrivajutsja shest' vidov jeksperimentov: 1) . Izmerenija laplasiana v odnorodnyh izotopnyh reshetkah Osushhestvleno shirokoe sravnenie rezul'tatov, poluchennyh pri odnorodnyh kriticheskih, jeksponencial'nyh i podstanovochno-kriticheskih izmerenijah, a takzhe

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

expone datos relativos a sus caracteristicas opticas, que son tambien aplicables a la tecnologia de la camara de centelleo. Examina brevemente algunos tipos de detectores productores de imagenes, que podrian construirse empleando gruesos bloques de sustancias capaces de acumular energia en cantidad considerable y de producir fosforescencia estimulada cuando se someten a irradiacion, asi como algunos metodos de lectura en los que se emplean haces opticos de exploracion para evitar la disminucion de poder de resolucion debida al espesor finito del fosforo. (author) [Russian] Opisana provodimaya v nastoyashchee vremya rabota po izucheniyu detektorov izobrazheniya radiatsii, sposobnykh sokhranyat' informatsiyu o prostranstvennom raspredelenii. My zanimaemsya, glavnym obrazom, izucheniem problem, svyazannykh s opredeleniem raspredeleniya intensivnosti radiatsii na ploskosti, a vozmozhno, i na tsilindricheskoj poverkhnosti. V ehtu kategoriyu problem vkhodyat diffraktsiya nejtronov i radiografiya, a takzhe radiografiya rentgenovskikh luchej i gamma-izluchenij, ili zhe issledovanie rasseyaniya s pomoshch'yu takikh vidov izluchenij. Osobyj upor delaetsya na izuchenie detektorov izobrazheniya radiatsii, osnovannykh na razrushenii iskr, i na lyuminestsentsii ili navedennoj fosforestsentsii. My vyrabotali schetchiki iskr ochen' bol'shikh razmerov, vesom bolee 100 funtov, imeyushchie svetochuvstvitel'nye poverkhnosti poryadka 2000 kv. sm., kotorye snabzheny sistemoj ustupchatykh ploskostej pochti s 400 anodnykh i katodnykh provodov. Primenenie schetchikov, napolnennykh VOZDUKHOM ili gazovoj smes'yu argona s metanom dlya izmereniya potoka, sozdaet ustrojstvo, chuvstvitel'noe k al'fa-chastitsam, a obnaruzhenie medlennykh nejtronov dostigaetsya plastinami preobrazovatelya, obogashchennogo B{sup 10}. S drugimi zapolnyayushchimi gazami obnaruzhivalas' chuvstvitel'nost' k protonam i ehlektronam. Registratsiya raspredeleniya intensivnosti dostigaetsya fotograficheskoj s{sup e

Fixation of Simulated Highly Radioactive Wastes in Glassy Solids; Fixation de Dechets Simules de Haute Activite dans des Soudes Vitreux; 0424 0418 041a 0421 0410 0426 0418 042f 0418 041c 0418 0422 0418 0420 041e 0412 0410 041d 041d 042b 0425 0420 0410 0414 0418 041e 0410 041a 0422 0418 0412 041d 042b 0425 041e 0422 0425 041e 0414 041e 0412 0412 042b 0421 041e 041a 041e 0419 0410 041a 0422 0418 0412 041d 041e 0421 0422 0418 0421 0422 0415 041a 041b 041e 041e 0411 0420 0410 0417 041d 042b 041c 0418 0422 0412 0415 0420 0414 042b 041c 0418 0412 0415 0429 0415 0421 0422 0412 0410 041c 0418 ; Fijacion de Desechos Simulados de Elevada Radiactividad en Solidos Vitreos

Energy Technology Data Exchange (ETDEWEB)

Clark, W. E.; Godbee, H. W. [Oak Ridge National Laboratory, Oak Ridge, TN (United States)

1963-02-15

-processa'' (aljuminij, HNO{sub 3}) i ''Dareks-processa'' (nerzhavejushhaja stal', HNOa) pokazali tehnologicheskuju vypolnimost' takogo processa. Plotnye mikrokristallicheskie tverdye veshhestva mogut byt' stol' zhe priemlemymi, kak istinnye stekla; ih bol'shaja teploprovodnost' v nekotoroj mere vozmeshhaet uvelichenie poverhnosti po sravneniju s istinnymi steklami. V laboratorii byli izgotovleny fosfatnye i borfosfatnye stekla iz othodov vseh jetih treh vidov. Letuchest' cezija byla ogranichena do -v0,1% za schet fizicheskogo uvlechenija, a letuchest' rutenija byla snizhena do <0,3% dobavleniem fosfita i gipofosfita. Drugimi dobavochnymi veshhestvami sluzhili: PbO, Ca (OH){sub 2}, NaOH i MgO. Udel'nyj ves massy izmenjalsja ot 2,36 do 2,90 g/cm{sup 3} dlja othodov 'TBF-25-processa' i ot 2,63 do 2,60 g/smje dlja othodov {sup P}ureks-processa{sup .} Ob{sup e}m umenyvaloja po sravneniju s ishodnymi ob{sup e}mami koncentrirovannyh rastvorov othodov v pervom sluchae v 7,2 - 9,3 raza i vo vtorom sluchae v 5,7 - 8,3 raza; tochki nachal'nogo razmjagchenija izmenjalis' sootvetstvenno ot 675 do 1 000 Degree-Sign C i ot 830 do 975vS. Rezul'taty opytov o othodami 'Dareks-processa' vse eshhe nosjat predvaritel'nyj harakter. V rezul'tate polunepreryvnogo processa v poluproizvodstvennom masshtabe poluchalis' istinnye stekla iz othodov ''TBF-25-processa'' i mikrokristallicheskoe tverdoe veshhestvo iz othodov {sup P}ureks- processa{sup .} Teploprovodnost' stekla izmenjalas' ot 1,05 britanskih termicheskih edinic v chas na fu*g i na 1 Degree-Sign F pri 320 Degree-Sign F do 1,6 pri 1 050 Degree-Sign F, t.e. ona v 10 raz prevyshala teploprovodnost' obzhigaemogo veshhestva bez dobavok. Blagodarja dobavleniju fosfita letuchest' rutenija snizhalas' do <10%. Nerzhavejushhaja stal' javljaetsja udovletvoritel'nym materialom dlja izgotovlenija kontejnerov dlja obzhiganija i fiksacii. Pochti vsja vnutrennjaja korrozija proishodit v techenie otnositel'no korotkogo perioda vremeni (2-6 chasov), v techenie kotorogo

Effects of Gamma Radiation on Three Species of Philippine Insect Pests; Effets des rayons gamma sur trois especes d'insectes nuisibles des Philippines; Dejstvie gamma-izlucheniya na tri raznovidnosti nasekomykh-vreditelej na Filippinakh; Efectos de las radiaciones gamma sobre tres plagas insectiles de las Filipinas

Energy Technology Data Exchange (ETDEWEB)

Viado, G. B.; Manoto, E. C. [Philippine Atomic Energy Commission, National Science Development Board, Manila (Philippines)

1963-09-15

'skokhozyajstvennykh nasekomykh-vreditelyakh, a imenno: 1) tomatnogo zhuka Epilachna philippinensis Dleke, vreditelya tomatov i baklazhanov; 2) risovogo ambarnogo dolgonosika Sltophilus oryza (L) i 3) krasnogo muchnogo zhuka Tribolium castaneum (Herbst.). Poslednie dve raznovidnosti yavlyayutsya naibolee rasprostranennymi i opasnymi vreditelyami zerna i drugikh khranyashchikhsya zernovykh produktov na Filippinakh. Pri provedenii opytov na tomatakh ispol'zovalis' yajtsa, lichinki, kukolki i vzroslye osobi E. philippinensis, a na zerne - vzroslye osobi S. oryza i T. casteneum. Chetyre dozy byli primeneny dlya Epilachna, a imenno: 1, 5, 10 i 20 kr. Pri obrabotke drugikh dvukh raznovidnoegej ispol'zovalis' pyat' doz: 10, 20, 40, 60 i 80 kr. Pri doze v 1 kr kolichestvo nevyplodivshikhsya iz yaits lichinok u Epilachna sostavlyalo priblizitel'no 10%. Pri uvelichenii dozy do 5 kr ne nablyudalos' proportsional'nogo uvelicheniya smertnosti, no pri doze v 10 kr smertnost' vozrosla bolee chem v tri raza, po sravneniyu so smertnost'yu pri doze v 5 kr. Smertnost' pri doze v 20 kr sostavlyala priblizitel'no 90%. Porogovaya doza nakhoditsya, po-vidimomu, v diapazone mezhdu 5 i 10 kr. Zarodyshi yaits, iz kotorykh ne vyvelis' lichinki, perestali razvivat'sya. Pri doze 1 kr bolee 20% lichinok pogiblo, prichem nekotorye iz nikh okuklilis', prezhde chem pogibnut'. Bol'shinstvo lichinok razvilos' vo vzroslye osobi. Vse lichinki, kotorye vyzhili posle oblucheniya dozoj svyshe 1 kr,a nekotorye iz nikh zhili v techenie 4 nedel', pogibli, ne dostignuv stadii okuklivaniya. Kukolki okazalis' bolee ustojchivymi, chem dichinki i vzroslye osobi. Stoprotsentnaya smertnost' ne byla dostignuta dazhe pri obluchenii 20 kr. U nekotorykh vzroslykh osobej, podvergshikhsya oblucheniyu dozami v 5 i 10 kr, nablyudalos' nepravil'noe razvitie kryl'ev i/ili konechnostej. U vzroslykh osobej, podvergshikhsya oblucheniyu dozami 10 i 20 kr, nablyudalsya protivopolozhnyj ehffekt, vyrazhavshijsya v gibeli cherez tri nedeli posle oblucheniya

The Role of Free-Radicals in the Radiation Vulcanizing of Elastomers; Role des radicaux libres dans la vulcanisation radiochimique des elastomeres; O roli svobodnykh radikalov v protsesse radiatsionnoj vulkanizatsii ehlastomerov; Papel de los radicales libres en la radiovulcanizacion de los elastomeros

Energy Technology Data Exchange (ETDEWEB)

Kuz' minskij, A. S.; Fedoseeva, T. E.; Chertkova, V. F.

1963-11-15

presente memoria, se examinan en detalle los procesos de recombinacion de los radicales libres obtenidos por irradiacion gamma, relacionandolos con las propiedades estructurales de los polimeros lineales y ramificados y, especialmente, con la orientacion y la movilidad interna de las cadenas moleculares. En los polimeros de alta elasticidad del tipo del caucho, que se caracterizan por una gran movilidad interna de las cadenas y una pequefla energia de los enlaces intermoleculares, los fenomenos de recombinacion de los radicales libres se desarrollan a velocidades muy elevadas cuando la temperatura es superior a Td. La concentracion de los radicales en las muestras de caucho irradiado en nitrogeno liquido disminuye 1,5 o 2 veces con la descongelacion hasta los 20{sup o}C. La concentracion de los radicales residuales a 20{sup o}C en los cauchoe cristalizables y de configuracion regular es ligeramente superior al limite de sensibilidad de los actuales aparatos de resonancia paramagnetica; en los polimeros amorfos, de estructura desordenada, esa concentracion es inferior a dicho limite. A temperaturas inferiores a Td, la disminucion de concentracion depende de la recombinacion de los radicales en la ''celda'', mientras que a la temperatura de cristalizacion se explica por la movilizacion de los segmentos de cadenas moleculares. La formacion de redes espaciales reduce la velocidad de recombinacion de los radicales en la descongelacion y prolonga la vida de los mismos a una temperatura de 20{sup o}C. Los autores estudiaron el proceso de degradacion de los radicales en el polibutadieno reticulado, con diferente numero de enlaces transversales a temperaturas comprendidas entre -196{sup o}C y +100{sup o}C. Comprobaron que la velocidad de desaparicion de los radicales libres depende de la densidad del reticulado espacial, variando para un mismo numero de enlaces transversales. (author) [Russian] Sposobnost' nekotorykh polimerov strukturirovat'sya pod dejstviem ioniziruitsego

Release of Fission Products from UC-ZrC Fuel Inserts; Degagement des produits de fission liberes dans des noyaux combustibles UC-ZrC; Vydelenie produktov deleniya iz topliv UC - ZrC; Liberacion de productos de fision por pastillas de combustible de UC-ZrC

Energy Technology Data Exchange (ETDEWEB)

Barth, F.; Von der Decken, C. B.; Schifferstein, K. [Brown Boveri/Krupp Reaktorbau G.M.B.H., Duesseldorf (Germany); Clauss, A.; Reichel, H.; Rygaert, J.; Ruston, W. R. [Societe d' Etudes de Recherches et d' Applications pour l' Industrie (S.E.R.A.I.), Brussels (Belgium)

1963-11-15

reaktora. Krome togo sushchestvovala vozmozhnost' otdel'nogo izmereniya doli otdachi {epsilon}{sub R} , esli toplivnaya serdtsevina byla podveshana v pechi s bol'shim diametrom. Izmerennye velichiny {epsilon}{sub R} lish' neznachitel'no prevyshali vychislennye. Pri bolee vysokikh temperaturakh obraztsa mozhno bylo vychislit' dolyu diffuzii {epsilon}{sub D} vychitaniem doli otdachi iz polnogo vydeleniya. Poluchiv {epsilon}{sub D}, mozhno vychislit' D/r{sub 0}''2 sek, upotreblyaya uravneniya priblizheniya S. Flyugge i K.EH.Tsimensa, gde D - konstanta diffuzii, r{sub 0} rasschitannyj matematicheskim putem srednij radius chastitsy. Grafik zavisimosti logarifma ehtikh velichin ot 1/T daet ehnergiyu aktivatsii (T - temperatura obraztsa, {sup o}K). Raznitsa mezhdu ehnergiyami aktivatsii diffuzii kriptona i ksenona'okaehalas' neznachitel'noj. Malo otlichalis' drug ot druga takzhe i ehnergii aktivatsii, opredelennye dlya razlichnykh tipov tabletok, nesmotrya na to, chto velichiny D/r{sub 0}{sup 2} v nekotorykh sluchayakh pri tekh zhe temperaturakh obraztsa razlichalis' na 4 poryadka. V grafite kapsul posle oblucheniya byli opredeleny aktivnosti izotopov I{sup 131}, Sr{sup 85}, Ba{sup 140} i Ce{sup 141}. 3a isklyucheniem I{sup 131}, aktivnosti byli vyshe ozhidaemykh dlya vydeleniya tol'ko za schet otdachi. Velichiny dlya Sr{sup 85}, Ba{sup 140}, i Ce{sup 141} byli slishkom veliki, chtoby ikh mozhno bylo ob{sup y}asnit' diffuziej sootvetstvuyushchikh im inertnykh gazov-predshestvennikov. Predpolagaetsya, chto izmerennye izotopy ili ikh neinertnye gazy-predshestvenniki vedelyayutsya putem diffuzii. (author)

Status of Research and Developmental Studies on Radiation Pasteurization of Fish and Shellfish in the United States; Etat des Etudes et des Realisations en Matiere de Radiopasteurisation des Poissons, Crustaces et Mollusques aux Etats-Unis; Sostoyanie nauchno-issledovatel'skikh rabot po radiatsionnoj pasterizatsii ryby i krabov v soedinennykh shtatakh; Estado de las Investigaciones y Estudios Experimentales Sobre la Radiopasteurizacion de Pescados y Mariscos en los Estados Unidos

Energy Technology Data Exchange (ETDEWEB)

Slavin, J. W.; Ronsivalli, L. J.; Connors, T. J. [United States Bureau of Commercial Fisheries Technological Laboratory, Gloucester, MA (United States)

1966-11-15

pescado con {sup 60}Co, de 250 000 Ci. Los ensayos de envase y transporte de productos irradiados en condiciones comerciales simuladas muestran que el pescado pasteurizado puede manipularse de la misma manera que el pescado fresco, pero el periodo de almacenamiento del primero es dos veces mayor que el del segundo. En cooperacion con entidades particulares y oficiales, se han expedido a diversos puntos de los Estados Unidos, en vehiculos comerciales, pescados y mariscos irradiados y se ha estudiado su calidad. Los resultados son muy alentadores e indican que este proceso seria sumamente util para la industria. La irradiacion de pescado en el mar permitira desembarcar mayores cantidades de pescado fresco. Los resultados iniciales indican que quiza sea posible irradiar en el mar el pescado (una vez extraidas las visceras) en dosis inferiores a 100 krad, y volverlo a irradiar en tierra una vez cortado en filetes y envasado. (author) [Russian] V doklade daetsja obzor sostojanija nauchnyh issledovanij po radiacionnoj pasterizacii ryb i krabov v Soedinennyh Shtatah i privodjatsja plany perevoda dannogo processa na kommercheskuju osnovu. Avtory izlagajut: 1) laboratornye issledovanija v universitetah i gosudarstvennyh nauchno-issledovatel'skih uchrezhdenijah po kachestvennym i mikrobiologicheskim aspektam obluchennyh s{sup e}dobnyh produktov morja, 2) issledovatel'skie raboty po oblucheniju ryby na beregu i v more i 3) kontrol' so storony amerikanskih vlastej za radiacionno pasterizovannymi s'edobnymi produktami morja i ispol'zovanie dannogo processa v rybolovnoj promyshlennosti. Kachestvennye issledovanija pokazyvajut, chto obluchenie kobal'tom-60 pri 150 000- 450 000 rad mozhet po men'shej mere udvoit' srok hranenija v zamorozhennom vide 16 vidov ryby, krabov i ustric, kotorye otnosjatsja k osnovnym vidam rybnyh produktov, prodavaemyh v svezhem ili zamorozhennom vide v Soedinennyh Shtatah. Temperatura hranenija, kachestvo syr'ja i uroven' dozy znachitel'no vlijajut na

The use of oxygen-14 in the study of positron polarization in a Fermi-type transition; Emploi de l'oxygene-14 pour l'etude de la polarisation des positions dans une transition du type Fermi; Ispol'zovanie kisloroda-14 dlya issledovaniya polyarizatsii pozitronov v prevrashcheniyakh tipa Fermi; Empleo del oxigeno-14 en el estudio de la polarizacion de los positrones en una transicion de tipo Fermi

Energy Technology Data Exchange (ETDEWEB)

Schmidt, F H; Gerhart, J B; Hopkins, J C; Bichsel, H; Stroth, J [University of Washington, Seattle, WA (United States)

1962-01-15

. Estos rayos gamma son dispersados en hierro imantado por efecto Compton e identificados en un contador de centelleo de Nal(Tl). La asimetria de .la seccion eficaz de dispersion con respecto a la direccion de magnetizacion esta relacionada con la magnitud original de la polarizacion de los positrones. El segundo metodo consistio en dirigir los positrones sobre una lamina de hierro imantada. La seccion eficaz de dispersion positron-electron, o de Bhabha, depende del sentido de la magnetizacion de la lamina de hierro con respecto a la polarizacion de los positrones. Los electrones y positrones dispersos fueron detectados en contadores de centelleo, de material plastico, conectados a un circuito de coincidencias rapidas. En ambos metodos las asimetrias previstas son pequenas, lo cual exige periodos largos de recuento. Los experimentos han demostrado que los positrones de 1 MeV procedentes de {sup 14}O tienen polarizacion dextrogira. El metodo de aniquilacion dio un valor (0,73 {+-} 0,17) v/c; el metodo de dispersion de Bhabha dio (0,97 {+-} 0,19) v/c. La teoria mas simple predice un valor de 1,00 v/c. Se supone que el metodo de dispersion de Bhabha es el que da mejores resultados, sobre todo porque la relacion entre la asimetria y la polarizacion es mas facil de calcular. (author) [Russian] V dvukh ehksperimentakh radioizotop O{sup 14} s korotkim poluperiodom raspada byl vybran dlya opredeleniya stepeni polyarizatsii obrazuyushchikhsya pri raspade pozitronov. V svete teorii dvojnogo betaraspada, predlozhennoj vpervye Li i YAngom, nesokhranenie chetnosti ukazyvaet, chto spinovyj moment kolichestva dvizheniya pozitronov polyariziruetsya v napravlenii dvizheniya na kolichestvo, proportsional'noe ikh skorosti, delennoj na skorost' sveta. Postoyannaya proportsional'nosti zavisit ot roda vzaimodejstviya, vyzyvayushchego protsess raspada. Svojstva 72-sekundnogo O{sup 14} podkhodyat dlya proverki nekotorykh aspektov ehtoj teorii. Kislorod O{sup 14} raspadaetsya ot nulevogo spina

Tracer Experiments on Food Exchange in Ants and Termites; Emploi des radioindicateurs dans l'etude de la trophallaxis chez les fourmis et les termites; Izuchenie s pomoshch'yu indikatorov obmena pishchej u murav'ev i termitov; Empleo de indicadores radiactivos para estudiar la trofalaxia en las hormigas y los termites

Energy Technology Data Exchange (ETDEWEB)

Gosswald, K.; Kloft, W. [Institute of Applied Zoology, University of Wurzburg, Federal Republic of Germany (Germany)

1963-09-15

murav'i, medonosnye pchely i termity yavlyaetsya ikh stremlenie k trofollakticheskomu obmenu pishchej, kotoryj mokhet byt' khorosho izuchen s pomoshch'yu mechennoj radioaktivnymi veshchestvami pishchi. Pri sravnitel'nom izuchenii samaya vysokaya skorost' obmena byla obnaruzhena u medonosnykh pchel, v to vremya kak u razlichnykh podsemejstv murav'ev ona byla chrezvychajno raznoobraznoj, chto dolkhvo byt' uchteno pri provedenii polevykh ehksperimentov s primeneniem indikatorov. Samoe sil'noe stremlenie k trofollakticheskomu obmenu my obnaruzhili u podsemejstva Camponotlnae. Usilenno izuchalis' murav'i Genus Formica.osobenno Formica polyctena (Forst.), i rodstvennye poligennye i polycalous vidy, kotorye igrayut vakhnuyu rol' v predupreditel'noj biologicheskoj bor'be s nasekomymi-vreditelyami lesa. Ustanovleno, chto skorost' obmena pishchej v odnom muravejnike obuslovlena temperaturoj, vremenem, kolichestvom osobej i nasyshcheniem. Drugoj problemoj yavlyaetsya vopros o tom, sushchestvuet li obmen pishchej mekhdu razlichnymi muravejnikami kolonii murav'ev odnogo vida. Pometiv otdel'nye muravejniki s pomoshch'yu vneseniya radioaktivnoj pishchi, my smogli obnaruzhit' intensivnyj obmen pishchej mekhdu razlichnymi muravejnikami kolonii, otstoyashchimi drug ot druga na rasstoyanie do 200 m. Analogichnye rezul'taty my poluchili dlya trekh razlichnykh kolonij v razlichnye gody. Sushchestvovanie takogo dal'nego obmena pishchej yavlyaetsya ochen' vakhnym dlya otsenki reguliruptsego dejstviya poleznykh vidov murav'ev v otnoshenii nasekomykhvreditelej. Lelo v tom, chto obmen prepyatstvuet bystromu nasyshcheniyu populyatsii lyubogo muravejnika vsledstvie mestnoj massovoj invazii nasekomykh v ikh predydushchem gnezde. Kak pokazali ehksperimenty s primeneniem indikatorov, sobrannaya pishcha popadaet v bol'shinstvo okruzhayushchikh muravejnikov kolonii murav'ev. Poehtomu kolonii ehtikh poleznykh lesnykh murav'ev dejstvuyut kak slokhnaya sistema s vysokoj ehkologicheskoj ehffektivnost'yu. S

Irradiation of Tropical Fruits and Vegetables; Irradiation de Fruits et Legumes Tropicaux; Obluchenie tropicheskikh fruktov i ovoshchej; Irradiacion de Frutas y Verduras Tropicales

Energy Technology Data Exchange (ETDEWEB)

Dharkar, S. D.; Sreenivasan, A. [Atomic Energy Establishment Trombay, Bombay (India)

1966-11-15

'noj ul'trazvukovoj obrabotkoj; b) chuvstvitel'nosti organizmov, vyzyvajushhih porchu produktov, takih, kak Saccharomyces cerevisiae i spor Bacillus cereus. i ; Bacillus subtilis . k teplu s predvaritel'noj obrabotkoj oblucheniem; v) vlijanija obluchenija na izmenenija v pektinovyh sostavnyh chastjah fruktov, podobnyh jabloku; i g) chuvstvitel'nosti karotenoidov v apel'sinah k oblucheniju. (author)

Legislation and Identification of Irradiated Foodstuffs; Reglementation et Identification des Denrees Irradiees; Zakonodatel'stvo po obluchennym pishchevym produktam i metody ikh identifikatsii; Legislacion y'Identificacion de los Alimentos Irradiados

Energy Technology Data Exchange (ETDEWEB)

Lafontaine, A. [Institut d' Hygiene et d' Epidemiologie, Ministere de la Sante Publique, Bruxelles (Belgium)

1966-11-15

, zapreshhaetsja primenjat' radioaktivnye veshhestva k pishhevym produktam ili obrabatyvat' ih pri pomoshhi ionizirujushhih izluchenij. Uzhe v nastojashhee vremja stat'ja 65, podpunkty ai', predusmatrivaet otstuplenie ot vysheukazannogo pravila pri uslovii, chto primenenie takih veshhestv ili obrabotka imi budut osushhestvljat'sja v issledovatel'skih celjah i pri nalichii special'nogo razreshenija Ministerstva zdravoohranenija. Vvoz, hranenie i perevozka pishhevyh produktov, kotorye podvergalis' obrabotke radioaktivnymi veshhestvami, takzhe zapreshheny v silu stat'i 64,2. Analogichnye polozhenija prinjaty v otnoshenii medikamentov i medicinskogo oborudovanija, obrabatyvaemyh pri pomoshhi ionizirujushhih izluchenij. Tem ne menee v porjadke postepennogo predostavlenija bol'shoj svobody dopuskaetsja opredelennaja gibkost' v otnoshenii medicinskogo oborudovanija. Nesmotrja na to, chto nekotorye nauchnye krugi prodolzhajut somnevat'sja otnositel'no bezvrednosti obluchennyh pishhevyh produktov, predstavljaetsja verojatnym v nedalekom budushhem ispol'zovat' nekotorye metody. Nekotorye strany k tomu zhe uzhe dali razre- . shenie na potreblenie nekotoryh vidov obluchennyh pishhevyh produktov i mozhno predvidet', chto ih prodazha vyjdet za ramki nacional'nyh granic. Krome togo, neobhodimo obespechit' .takoe polozhenie, chtoby metody, kotorye byli odobreny, ne primenjalis' k produktam, dlja kotoryh oni ne predusmotreny, i chtoby sobljudalis' dopustimye dozy obluchenija. Takim obrazom, v nacional'nom i mezhdunarodnom plane voznikaet problema identifikacii obluchennyh produktov i vozmozhnogo opredelenija dozy obluchenija. Rassmotrenie perechnja vozmozhnyh metodov ukazyvaet na mnozhestvo sposobov podhoda k resheniju jetogo voprosa: izmerenie paramagnitnogo sostojanija atoma, jelektroforez, izmerenie potenciala okislitel'no-vosstanovitel'nogo processa, polarografija, spektro- fotometrija, hromatografija, kalorimetrija, mikroskopicheskoe izuchenie tkanej, immunologicheskie izmenenija

The Economical Application of Non-Destructive Testing to Reactor Components, Especially Jacket Tubing; Avantages Economiques du Controle Non Destructif des Pieces de Reacteurs, Notamment des Tubes de Gainage; Ehkonomicheskoe primenenie nedestruktivnykh ispytanij dlya reaktornykh komponentov, v chastnosti obolochechnykh trub; Aplicacion en Condiciones Economicas de Ensayos No Destructivos a las Piezas de los Reactores, en Especial a los Tubos de Revestimiento

Energy Technology Data Exchange (ETDEWEB)

Renken, C. J. [Metallurgy Division Argonne National Laboratory Argonne, IL (United States)

1965-10-15

' primenenija jetih dvuh metodov, a takzhe perekryvaemaja imi oblast', gde poluchennye rezul'taty blagodarja horoshej konstrukcii i tochno rabotajushhemu oborudovaniju oboih vidov javljagtsja v znachitel'noj stepeni jekvivalentnymi. Lozhnye ukazanija na defekty vedut ne- posredstvenno k udorozhaniju komponentov, pojetomu kak pri ul'trazvukovom tak i pri jelektro- magnitnom metode uchityvaetsja celyj rjad obychno vstrechajushhihsja istochnikov signalov lozh- nyh defektov. Opyt po primeneniju jetih metodov v Argonnskoj nacional'noj laboratorii v otnoshenii sravnitel'no bol'shogo kolichestva sistem trub iz razlichnyh istochnikov iz- lagaetsja podrobno s tochki zrenija naimen'shih vozmozhnyh zatrat na proverku edinicy dliny trub. V nastojashhem razdele takzhe v kratce izlagaetsja opyt, priobretennyj v Argonne s pomoshh'ju samyh novyh metodov ispytanij jelektromagnitnoj pul'sacii. Obsuzhdaetsja kri- ticheskaja, no, kak pravilo, nezhelatel'naja rol' diametra trub i tolshhiny stenok v voprose zatrat pri obsledovanii trub. Poshol'ku vopros jekonomicheskogo obsledovanija neposred- stvenno svjazan s urovnjami dopustimyh defektov, zatragivaetsja takzhe vopros ob urovnjah defektov i standartah, ispol'zuemyh v Argonne. I, nakonec, perechisljajutsja prakticheskie i teoreticheskie bar'ery dlja snizhenija zatrat, svjazannyh s obsledovaniem komponentov, i ukazvajutsja perspektivy vozmozhnogo snizhenija rashodov, kotoryh mozhno dobit'sja v budu- shhem s pomoshh'ju ul'trazvukovyh i jelektromagnitnyh metodov ispytanij. (author)

Some Applications of Surface Barrier Solid-State Detectors for Alpha-Activity Detection and Measurement; Quelques Applications des Detecteurs a Semi-Conducteurs a Barriere de Surface pour Deceler et Mesurer l'Activite Alpha; Nekotorye vidy primeneniya detektorov tverdogo sostoyaniya s poverkhnostnym bar'erom dlya izmereniya i obnaruzheniya al'fa-aktivnosti; Aplicaciones de los Detectores de Semiconductores de Barrera Superficial a la Deteccion y Medicion de Emisores Alfa

Energy Technology Data Exchange (ETDEWEB)

Perry, K. E.G. [Atomic Energy Establishment, Winfrith, Dorset (United Kingdom)

1965-10-15

i dlja special'nogo dozimetricheskogo obsledovanija po programme radiacionnoj bezopasnosti. Naibolee udobnym metodom opredelenija kolichestva plutonija, uderzhannogo v organizme cheloveka, podvergajushhegosja oblucheniju, javljaetsja sobiranie prob mochi i kala. Jeti proby obrabatyvajutsja himicheskim sposobom dlja izvlechenija plutonija, kotoryj otlagaetsja jelektroliticheskim sposobom na malye diski iz nerzhavejushhej stali dlja poluchenija tonkih ''istochnikov'' s nichtozhnym samopogloshheniem al'fa-aktivnosti. Pri normal'nyh uslovijah raboty professional'no podvergajushhegosja oblucheniju personala kolichestvo aktivnosti, sobiraemoj takim obrazom, chrezvychajno malo, chto vyzyvaet neobhodimost' ochen' tochuo izmerjat' ves'ma slabye aktivnosti v poluchennyh probah. Detektory tverdogo sostojanija imejut preimushhestvo pered detektorami drugih vidov (naprimer, pered scintilljacionnymi schetchikami ili proporcional'nymi schetchikami s gazovym potokom) v tom otnoshenii, chto oni dajut vozmozhnost' sil'no ponizit' fon, chto v svoju ochered' pozvoljaet obnaruzhivat' gorazdo bolee slabuju aktivnost'. Dlja jetih izmerenij shiroko primenjajutsja dva tipa priborov s ispol'zovaniem detektorov tverdogo sostojanija. Naibolee prostoj tip oborudovanija snabzhen detektorom dlja izmerenija obshhej al'fa-aktivnosti proby. Odnako esli imejutsja eshhe drugie al'fa-aktivnye radioizotopy, to dlja opredelenija dejstvitel'nogo soderzhanija plutonija detektory tverdogo sostojanija mogut byt' ispol'zovany bolee celesoobrazno v kachestve spektrometrov; analiz amplitudy impul'sov daet vozmozhnost' otlichit' jemissiju plutonija s jenergiej 5,14 Mjev ot al'fa-jemissij drugih radioizotopov. V nastojashhee vremja ispol'zujutsja dva tipa oborudovanija s primeneniem detektorov tverdogo sostojanija dlja analiza jenergij. Naibolee prostoj iz jetih priborov vkljuchaet detektor sostojanija diametrom 20 mm, prichem na vyhode jetogo detektora imeetsja kontur, vkljuchajushhij dva diskriminatora

Coincidence scanning with positron-emitting arsenic or copper in the diagnosis of focal intracranial disease; Exploration par coincidences avec l'Arsenic ou le Cuivre Emetteurs de Positrons dans le Diagnostic des Maladies intracraniennes localisees; Raspoznavanie ochagovykh vnutricherepnykh zabolevanij putem podscheta (skanirovaniya) sovpralenij s primeneniem mysh'yaka ili medi, vydelyayushchikh pozitrony; Exploracion por coincidencia con arsenico o cobre emisores de positrones en el diagnostico de enfermedades intracraneanas localizadas

Energy Technology Data Exchange (ETDEWEB)

Sweet, William H; Mealey, John Jr; Brownell, Gordon L; Aronow, Saul [Departments of Surgery and Medicine, Harvard Medical School, and Neurosurgical Service and Physics Research Laboratory of Massachusetts General Hospital, Boston, MA (United States)

1959-07-01

kontsentratsiej v tkani normal'nogo mozga dostigaet 30 dlya opukholej myagkikh mozgovykh obolochek (meningiom). Ostal'nye glavnye vidy opukholej, perechislennye v poryadke umen'shayushchejs ya kontsentratsii izotopa, sleduyushchie: slukhovye nevromy, glioblastomy, zlokachestvenny e metastazy i astrotsitomy. Sil'noe pogloshchenie mysh'yaka v tkani opukholi prodolzhaetsya dostatochno dolgo, chtoby povtornoe skanirovanie cherez 24 chasa posle in{sup e}ktsii davalo polozhitel'nye rezul'taty. Koehffitsient sootnosheniya mezhdu kontsentratsiej v myshtsakhiv mozgu nastol'tko velik, chto on prepyatstvuet ustanovleniyu tochnogo diagnoza, esli porazheniya raspolozheny pod nizhnimi myshtsami viska i osobenno pod verkhnimi myshtsami zatylka. Raznitsa v zakhvate izotopa mezhdu normal'noj i bol'noj tkanyo pri nalichii krovyanykh opukholej, abstsessov i zon razrusheniya mielina takzhe dostatochno znachitel'na, chtoby mozhno bylo lokalizirovat' dannoe zabolevanie u bol'shinstva patsientov. Biopsiya tkani, soderzhashchej mednyj versenat, vyyavila nalichie analogichnykh koehffitsientov , poskol'ku ikh mozhno opredelit' pri pomoshchi men'shego chisla obraztsov. Meningiomy, veroyatno, predstavlyayut soboj isklyuchenie v tom smysle, chto pri ispol'zovanii medi upomyanutye koeffitsienty yavlyayutsya bolee nizkimi. Na osnovanii analiza radioaktivnost i kak mochi, tak i vsekh vidov poluchaemykh posle posmertnogo vskrytiya tkanej my ustanovili, chto pri ispol'zovanii izotopa As{sup 74} obshchee obluchenie tela ravnyaetsya priblizitel'n o 3,2 rad posle vvedeniya obychnoj dlya skanirovaniya dozy v 2,3 millikyuri na 70 kg. vesa. Pochki pogloshchayut okolo 12,7, a pechen' 9,7 rad. Sootvetstvuyushchie tsifry dlya izotopa Cu{sup 64} sleduyushchie: 325 rad dlya vsego tela, prichem pechen' pogloshchaet 3,2 rad, tak kak ehtot organ zakhvatyvaet priblizitel'n o polovinu vvedennogo v organizm versenata. Avtomaticheskoe skanirovanie daet v dvukh odnovremenno poluchaemykh bokovykh zapisyakh podschet sovpadenij ili