About the generalization of the definition of uniform global controllability for the systems with locally integrable coefficients

The classical definition of uniform global controllability was formulated for linear controllable systems with coefficients from the space . 2 L It was defined in terms of the Cauchy's matrix of such systems with zero control and matrix at control, and therefore was an effective tool for solving many applied problems. The above concept of locally integrable systems is generalized in this paper

Novopolotsk City Program "Youth": Lessons and Results

Novopolotsk city program "Youth" was an attempt to implement the best practices of youth policy, as well as the implementation at the local level of the new state youth policy of the USSR. The article discusses the content of the program and attempts to implement it, concludes the importance of its adoption

Novopolotsk City Program "Youth": Lessons and Results

Novopolotsk city program "Youth" was an attempt to implement the best practices of youth policy, as well as the implementation at the local level of the new state youth policy of the USSR. The article discusses the content of the program and attempts to implement it, concludes the importance of its adoption

Wavelength-shifter coated polystyrene as an easy-to-build and low-cost plastic scintillator detector

We studied the light yield of a pure polystyrene slide coated with wavelength-shifter molecules, coupled to a photomultiplier, using beta particles from a 90-Sr source, as a possible easy-to-build, low-cost plastic scintillator detector. Comparison measurements were performed with an uncoated polystyrene slide as well as with uncoated and coated PMMA slides, the latter which can only produce Cherenkov light when being traversed by charged particles. The results with the single (double) coated polystyrene slides show about 4.9 (6.3) times higher detected photon yield compared to the uncoated slide. For comparison, the light yield of a polystyrene-based extruded plastic scintillator material doped with PTP and POPOP was measured as well. The absolute detected light yield motivates future studies for developing easy-to-build, low-cost polystyrene-based plastic scintillator detectors.Comment: 20 pages, 13 figure

Садки усовершенствованной конструкции для выращивания ценных видов рыб

Разработанная конструкция садка позволяет выращивать товарную рыбу ценных видов в садковых хозяйствах, расположенных в неиспользуемых ранее для целей рыбоводства водоемах

Towards effective indirect radioisotope energy converters with bright and radiation hard scintillators of (Gd,Y)3Al2Ga3O12 family

Ceramics of quaternary garnets (Gd,Y)3Al2Ga3O12 doped with Ce, Tb have been fabricated and evaluated as prospective materials for indirect energy converters of α-and β-voltaic. Samples were characterized at excitation with an X-ray source and an intense 150 keV electron beam and showed good temperature stability of their emission and tolerance to irradiation. The role of X-rays accompanied the α-particle emitting in the increase of the conversion efficiency is clarified. The garnet-type structure of the matrix in the developed materials allows the production of quality crystalline mass with a light yield exceeding that of the commonly used YAG: Ce scintillator by a factor of two times. © 2022 Korean Nuclear SocietyMinistry of Education and Science of the Russian Federation, Minobrnauka: 075-15-2021-1353, FEUZ-2020-0060; Ministerstwo Edukacji i Nauki, MNiSW: 075-11-2021-070; Ministry of Science and Higher Education of the Russian FederationAuthors with affiliations b, d, e and f acknowledge support from Russian Ministry of Science and Education grant No. 075-15-2021-1353 . The scientific equipment provided by shared research facilities “Scientific Research Analytical Center of National Research Center “Kurchatov Institute” – IREA” was used, with financial support of Russian Federation, represented by the Ministry of Science and Higher Education, agreement No. 075-11-2021-070 dated August 19, 2021. The work was partially supported by the Ministry of Science and Higher Education of the Russian Federation (through the basic part of the government mandate, project No. FEUZ-2020-0060 ) (authors with affiliation “c”).Authors with affiliations b, d, e and f acknowledge support from Russian Ministry of Science and Education grant No. 075-15-2021-1353. The scientific equipment provided by shared research facilities “Scientific Research Analytical Center of National Research Center “Kurchatov Institute” – IREA” was used, with financial support of Russian Federation, represented by the Ministry of Science and Higher Education, agreement No. 075-11-2021-070 dated August 19, 2021. The work was partially supported by the Ministry of Science and Higher Education of the Russian Federation (through the basic part of the government mandate, project No. FEUZ-2020-0060) (authors with affiliation “c”)

Новые компоненты комбикормов для молоди осетровых и сомовых рыб

Проведенные исследования выявили возможность замены импортных кормов комбикормами отечественного производства с введением в состав суспензии хлореллы, жмыхов рапса и сафлора при выращивании молоди осетровых и сомовых рыб

ЧУВСТВИТЕЛЬНОСТЬ КЛЕТОК КРОВИ И ЭПИДИДИМАЛЬНЫХ СПЕРМАТОЗОИДОВ КРЫС К ВОЗДЕЙСТВИЮ МАГНИТНОГО ПОЛЯ ПРОМЫШЛЕННОЙ ЧАСТОТЫ (50 Гц)

The article discusses the data on the long-time effect of low frequency magnetic fields (IF MF 50 Hz, 0.4 mT, 4h/day, 5 days/week, 26 days) on blood cells and spermatozoa of Wistar rats. It was determined that at different times after exposure (3th, 15th and 30th days) the changes in different quantitative and qualitative indicators of test cells were revealed, some of which are kept in 30 days after exposure. В сообщении обсуждаются данные исследований длительного воздействия магнитного поля промышленной частоты (МП ПЧ 50 Гц, 0,4 мT, 4 ч/день, 5 дней в неделю, суммарное количество 26 дней) на клетки крови и эпидидимальные сперматозоиды крыс Вистар. Установлено, что в различные сроки после воздействия (3-и, 15-е и 30-е сутки) выявляются изменения различных количественных и качественных показателей исследуемых клеток, некоторые из которых сохраняются в отдаленном периоде (30-е cутки после экспозиции).