[The biological effects in animals related to the accident at the Chernobyl Atomic Electric Power Station. 1. The experimental model. The radiation loads on animals kept continuously under external and internal radiation exposure in the area of the Chernobyl Atomic Electric Power Station]. / Biologicheskie éffekty u zhivotnykh v sviazi s avariei na Chernobyl'skoi AES. Soobshchenie 1. Model' éksperimenta. Radiatsionnye nagruzki u zhivotnykh, postoianno nakhodivshikhsia v usloviiakh vneshnego i vnutrennego radiatsionnogo vozdeistviia v zone ChAES.

Irradiation conditions in which laboratory animals were kept in experimental laboratories of Chernobyl and Kiev after the accident at the Chernobyl A.P.S. are described. The data are presented on the spectral structural and activity of radionuclides in the diet as well as in the organs and tissues of the animals. The radiation loads have been estimated with regard to an external gamma component and the internal one contributed by the incorporated radionuclides. It has been shown that radiation doses received by the animals during their lifetime due to these contributions do not exceed units of cGy.

[The effect of ceruloplasmin on metabolic processes in the liver of mice during neutron exposure]. / Vliianie tseruloplazmina na metabolicheskie protsessy v pecheni myshei pri neitronnom vozdeistvii.

A single intraperitoneal administration of human ceruloplasmin to BALB/c mice 60 min before fast neutron irradiation normalizes lipid content and cAMP/cGMP index, and increases catalase activity in the liver of irradiated animals.

[Dosimetric and radiobiological characteristics of the radiation field from the reaction d(50 MeV)--Be]. / Nekotorye dozimetricheskie i radiobiologicheskie kharakteristiki radiatsionnogo polia iz reaktsii d(50 MéV)--Be.

The rate of the total absorbed dose within a radiation field produced by the reaction of accelerated (up to 50 MeV) deuterons with a thick beryllium target has been determined and the uniformity of the dose field studied. LD50/30 for C57Bl mice has been evaluated in a mixed gamma/neutron field.

[Determination of the contribution of gamma radiation to absorbed dose and the radiobiological effects in the radiation field resulting from the reaction p(50MeV)--Be]. / Opredelenie vklada gamma-izlucheniia v pogloshchennuiu dozu i nekotorye radiobiologicheskie éffekty v radiatsionnom pole, poluchennom iz reaktsii p(50MéV)--Be.

A contribution of gamma-radiation to a total dose absorbed in the radiation field formed during 50 MeV proton bombardment of a beryllium target has been determined. A study was made of the biological effectiveness of action of mixed gamma/neutron-radiation on albino mongrel and inbred (C57 black) female mice.

[Formation of a fast-neutron beam for radiobiological experiments on the U-240 isochronous cyclotron and a study of its dosimetric characteristics]. / Poluchenie puchka bystrykh neitronov dlia radiobiologicheskikh éksperimentov na izokhronnom tsiklotrone U-240 i issledovanie ego dozimetricheskikh kharakteristik.

The paper submits the description of the channel equipped for radiobiological experiments with fast neutrons at the isochronous cyclotron U-240. A study was made of some dosimetric characteristics of a mixed gamma-and-neutron beam.