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Sample records for malykh skorostyakh tsirkulyatsii

  1. Non-universal bound states of two identical heavy fermions and one light particle

    NASA Astrophysics Data System (ADS)

    Safavi, Arghavan; Rittenhouse, Seth; Blume, Dorte; Sadeghpour, Hossein

    2013-05-01

    We study a system of two identical heavy fermions of mass M and light particle of mass m. The interspecies interaction is modeled using a short-range two-body potential with positive s-wave scattering length. We impose a short-range boundary condition on the logarithmic derivative of the hyperradial wavefunction and show that, in the regime where Efimov states are absent, a non-universal three-body state ``cuts through'' the universal three-body states previously described by Kartavtsev and Malykh [O. I. Kartavtsev and A. V. Malykh, J. Phys. B 40, 1429 (2007)]. We study the effect of the non-universal state on the behavior of the universal states and use a simple quantum defect theory, utilizing hyperspherical coordinates, to explain the existence of the non-universal state. An empirical two-state model is employed to quantify the coupling of the non-universal state to the universal states. This work was supported by NSF through a grant for the Institute for Theoretical Atomic, Molecular and Optical Physics at Harvard University and Smithsonian Astrophysical Observatory and through grant PHY-1205443.

  2. Experience of study of the incidence of malignant neoplasms population in small areas of Ukraine, which suffered contamination with radionuclides due to the Chornobyl accident.

    PubMed

    Prysyazhnyuk, A Ye; Fuzik, M M; Gudzenko, N A; Bazyka, D A; Fedorenko, Z P; Ryzhov, A Yu; Sumkina, O V; Trotsyuk, N K; Khukhrianska, O M

    2015-12-01

    Meta doslidzhennia: otsinyty dynamiku realizatsii ryzykiv vynyknennia zloiakisnykh novoutvoren' na okremykh malykh terytoriiakh Ukrainy v do- ta pisliaavariinyi periody. Materialy ta metody. Doslidzhuvana populiatsiina grupa – naselennia Malyns'kogo raionu Zhytomyrs'koi oblasti. Period sposterezhennia – 1980–2014 rr. Doslidzhuvalas' zakhvoriuvanist' na zloiakisni novoutvorennia v tsilomu ta okremi nozologichni formy (rak shchytovydnoi zalozy, rak molochnoi zalozy, novoutvorennia krovotvornoi ta limfoidnoi systemy). Vykorystovuvalys' metody variatsiinoi statystyky ta deskryptyvnoi epidemiologii.Rezul'taty roboty. Kharakterystyky vplyvu ionizuiuchogo vyprominiuvannia na naselennia Malyns'kogo raionu svidchat' pro potentsiinu mozhlyvist' negatyvnykh efektiv, osoblyvo shchodo patologii shchytovydnoi zalozy. Poriad z tym, shcho seredni sumarni efektyvni dozy oprominennia vs'ogo tila za rakhunok radiotseziiu naselennia Malyns'kogo raionu (5,9 mZv), znakhodiat'sia na rivni serednikh po Zhytomyrs'ksq oblasti i ie znachno nyzhchymy porivniano z analogichnymy pokaznykamy inshykh raioniv pivnichnoi chastyny oblasti, dozy vnutrishn'ogo oprominennia na shchytopodibnu zalozu, a same 236 mGr, znachno perevyshchuiut' oblasni pokaznyky – 81 mGr. Khocha riven' zakhvoriuvanosti naselennia Malyns'kogo raionu na zloiakisni novoutvorennia v tsilomu buv pryblyzno na natsional'nomu rivni 1999–2003 rr., ta nyzhche za n'ogo v 2012–2014 rr., perevyshchuiuchy pry ts'omu pokaznyky Zhytomyrs'koi oblasti, chastota raku shchytovydnoi zalozy v 2012–2014 rr. u Malyns'komu raioni bula u 1,7 raza vyshchoiu porivniano z danymy po Ukraini ta u 1,9 raza vyshchoiu porivniano z danymy po Zhytomyrs'kii oblasti. Iak i v bil'shosti pivnichnykh raioniv, shcho pidpaly pid diiu opadiv radioaktyvnogo iodu, sposterigaiet'sia realizatsiia pidvyshchenogo radiatsiinogo ryzyku raku ts'ogo organu. Chastota raku molochnoi zalozy u zhinochogo naselennia Malyns'kogo raionu ie nainyzhchoiu porivniano z

  3. Anti-self-dual gravitational metrics determined by the modified heavenly equation

    NASA Astrophysics Data System (ADS)

    Sheftel, M. B.; Yazıcı, D.

    2014-11-01

    In paper Doubrov and Ferapontov (2010) on the classification of integrable complex Monge-Ampère equations, the modified heavenly (MH) equation of Dubrov and Ferapontov is one of canonical equations. It is well known that solutions of the first and second heavenly equations of Plebañski (1975) and those of the Husain equation in Husain (1994) provide potentials for anti-self-dual (ASD) Ricci-flat vacuum metrics. For another canonical equation, the general heavenly equation of Dubrov and Ferapontov (2010), we had constructed in Malykh and Sheftel (2011) ASD Ricci-flat metric governed by this equation. Thus, the modified heavenly equation remains the only one in the list of canonical equations in Doubrov and Ferapontov (2010) for which such a metric is missing so far. Our aim here is to construct null tetrad of vector fields, coframe 1-forms and ASD Ricci-flat metric for the latter equation. We study reality conditions and signature for the resulting metric. As an example, we obtain a multi-parameter cubic solution of the MH equation which yields a family of metrics with the above properties. Riemann curvature 2-forms are also explicitly presented for the cubic solution.

  4. Vestibular and acustic dysfunctions in clean up workers of Chornobyl accident (30 years of follow up).

    PubMed

    Zabolotnyi, D I; Mishchanchuk, N S

    2016-12-01

    normal'nomu slukhu svidchat' pro doklinichni gal'mivni protsesy u stovburomozkovykh ta pidkorkovo korkovykh strukturakh akustychnogo analizatora u ranni pisliaavariy̆ni roky. Vyiavleni osoblyvosti klinichnogo perebigu vestybuliarnoï ta akustychnoï dysfunktsiy̆ pry dovgotryvalomu monitoryngu pry korotkochasniy̆ diï ionizuiuchoï radiatsiï u velykykh dozakh v grupi ULNA na ChA ES, iaki perenesly gostru promenevu khvorobu, a pry analogichnykh malykh dozakh u viddaleni roky proiav zmin bil' shyy̆ ta pryskorenyy̆ u chasi pry tryvaliy̆ diï IR, nizh pry vidnosno korotkochasniy̆. V ULNA na ChAES vyiavleno virogidne zrostannia slukhovykh porushen' za typom peredchasnogo vikovogo znyzhennia (rgesbyacuzis precox) u vidpovidnykh vikovykh kategoriiakh, iake ie odnym iz symptomiv peredchasnogo starinnia ïkhn'ogo organizmu.