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2. Experiment Neutrino-4 search for sterile neutrino and results of measurements

Author

Serebrov, A. P., Samoilov, R. M., Ivochkin, V. G., Fomin, A. K., Zinoviev, V. G., Neustroev, P. V., Golovtsov, V. L., Volkov, S. S., Chernyj, A. V., Zherebtsov, O. M., Chaikovskii, M. E., Petelin, A. L., Izhutov, A. L., Tuzov, A. A., Sazontov, S. A., Gromov, M. O., Afanasiev, V. V., Zaytsev, M. E., Gerasimov, A. A., and Fedorov, V. V.

Subjects
High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

The experiment Neutrino-4 had started in 2014 with a detector model and then was continued with a full-scale detector in 2016 - 2021. In this article we describe all steps of preparatory work on this experiment. We present all results of the Neutrino-4 experiment with increased statistical accuracy provided to date. The experimental setup is constructed to measure the flux and spectrum of the reactor antineutrinos as a function of distance to the center of the active zone of the SM-3 reactor (Dimitrovgrad, Russia) in the range of 6 - 12 meters. Using all the collected data, we performed a model-independent analysis to determine the oscillation parameters $\Delta m_{14}^2$ and $\sin^22\theta_{14}$. The method of coherent summation of measurement results allows to directly demonstrate the oscillation effect. We present the analysis of possible systematic errors and the MC model of the experiment, which considers the possibility of the effect manifestation at the present precision level. As a result of the analysis, we can conclude that at currently available statistical accuracy we observe the oscillations at the $2.9\sigma$ level with parameters $\Delta m_{14}^2=(7.3\pm0.13_{st}\pm1.16_{sys})\text{eV}^2 = (7.3\pm1.17)\text{eV}^2$ and $\sin^22\theta_{14}= 0.36\pm0.12_{stat}(2.9\sigma)$. Monte Carlo based statistical analysis gave estimation of confidence level at $2.7\sigma$. We plan to improve the currently working experimental setup and create a completely new setup in order to increase the accuracy of the experiment by 3 times. We also provide a brief analysis of the general experimental situation in the search for sterile neutrinos., Comment: 38 pages, 54 figures. arXiv admin note: text overlap with arXiv:2003.03199, arXiv:1809.10561

Published
2020
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3. Comment on 'Unveiling the double-well energy landscape in a ferroelectric layer'

Author

Kittl, J. A., Houssa, M., Afanasiev, V. V., and Locquet, J. -P.

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

Analysis of data presented in the paper -- Unveiling the double-well energy landscape in a ferroelectric layer, by M. Hoffmann, et al., Nature 565, 464 (2019) -- suggesting the claims of lack of hysteresis and s-curve trajectory are unfounded.

Published
2020

4. A critical analysis of models and experimental evidence of negative capacitance stabilization in a ferroelectric by capacitance matching to an adjacent dielectric layer

Author

Kittl, J. A., Locquet, J. -P., Houssa, M., and Afanasiev, V. V.

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

We present a thorough analysis of the foundations of models of stabilization of negative capacitance (NC) in a ferroelectric (FE) layer by capacitance matching to a dielectric layer, which claim that the FE is stabilized in a low polarization state without FE polarization switching (non-switching), showing that the concept is fundamentally flawed and unphysical. We also analyze experimental evidence concluding that there is no data supporting the need to invoke such stabilization; rather, conventional models of ferroelectric polarization switching suffice to account for the effects observed. We analyze experimental evidence that at least in some of the model systems for which this effect has been claimed, categorically rule out stabilized non-switching NC. Microscopic measurements recently published as supporting non-switching stabilized NC actually rule them out, since the ferroelectric in a stack sandwiched between two dielectric layers was found to be in a mixed domain state (high polarizations within each domain) rather than in the low polarization state predicted by non-switching stabilized NC models. Nonetheless, since stabilized NC (corresponding to a minimum in free energy) is not physically impossible, it would be useful to move the research efforts to investigating scenarios and systems in which this effect is possible and expected and assess whether they are useful and practical for low power electronics.

Published
2020

5. The first observation of effect of oscillation in Neutrino-4 experiment on search for sterile neutrino (continuation)

Author

Serebrov, A. P., Samoilov, R. M., Ivochkin, V. G., Fomin, A. K., Polyushkin, A. O., Zinoviev, V. G., Neustroev, P. V., Golovtsov, V. L., Chernyj, A. V., Zherebtsov, O. M., Chaikovskii, M. E., Zaytsev, M. E., Gerasimov, A. A., Petelin, A. L., Izhutov, A. L., Tuzov, A. A., Sazontov, S. A., Gromov, M. O., and Afanasiev, V. V.

Subjects
High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

We present the results of the Neutrino-4 experiment on search for a sterile neutrino. The experiment has been carried out on the SM-3 reactor having a compact active zone of $42\times42\times35\textrm{cm}^3$ and operating on the highly enriched uranium-235 at 90 MW thermal power. We report the results of the Neutrino-4 experiment of measurements of reactor antineutrino flux and spectrum dependence on the distance in the range 6-12 meters from the center of the reactor core. Using the measured spectrum and the distance dependence of antineutrino flux, we performed the model independent analysis of restrictions on the oscillation parameters $\Delta m^2_{14}$ and $\sin^2 2\theta_{14}$. The method of coherent addition of results of measurements is proposed. It allows us to directly observe the effect of oscillations. We observed the oscillation effect at CL $3.5\sigma$ in the vicinity of $\Delta m^2_{14} \approx 7.26\textrm{eV}^2$ and $\sin^2 2\theta_{14} \approx 0.38$. Combining the result of the Neutrino-4 experiment and the result of the gallium anomaly effect we obtained value $\sin^2 2\theta_{14} \approx 0.35 \pm 0.07 (5\sigma)$. The analysis of systematics effects is presented. Comparison with results of other experiments is presented. Future prospect of the experiment is discussed. It is necessary to notice that obtained values $\sin^2 2\theta_{14} \approx 0.35 \pm 0.07 (5\sigma)$ and $\Delta m^2_{14} \approx (7.3 \pm 0.7)\textrm{eV}^2$ allow make assessment on the mass of a neutrino: $m_{\beta} \approx 0.8\textrm{eV}$., Comment: 16 pages, 28 figures

Published
2018
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6. Experiment Neutrino-4 and restrictions for sterile neutrino

Author

Serebrov, A. P., Ivochkin, V. G., Samoilov, R. M., Fomin, A. K., Polyushkin, A. O., Zinoviev, V. G., Neustroev, P. V., Golovtsov, V. L., Chernyj, A. V., Zherebtsov, O. M., Chaikovskii, M. E., Martemyanov, V. P., Tarasenkov, V. G., Aleshin, V. I., Petelin, A. L., Izhutov, A. L., Tuzov, A. A., Sazontov, S. A., Gromov, M. O., Afanasiev, V. V., Zaytsev, M. E., and Ryazanov, D. K.

Subjects
Physics - Instrumentation and Detectors
Abstract

The experiment "Neutrino-4" started in 2014 on a model, then it was continued on a full-scale detector, and now, has provided the measurement result on dependence of the flux and spectrum of reactor antineutrinos on the distance of 6 - 12 meters from the center of the reactor. One of the main problems is the correlated background from fast neutrons caused by space radiation. Attempts to suppress the background of fast neutrons by sectioning the detector have given some result. The relation of effect/background has improved up to 0.6. As a result, measurements of the difference in the counting rate of neutrino-like events (reactor ON - reactor OFF) have been obtained as dependence on distance from the reactor center. The fit of experimental dependence with the law $1/L^2$ give satisfactory result. The goodness of that fit is 81%. However, there was discovered experimental neutrino spectrum difference from calculated one. With achieved accuracy this difference does not change with distance. Therefore it cannot be interpreted as oscillations. Calculated spectrum form correction for experimental allow us to make proper analysis of oscillation parameters $\Delta m^2_{14}$ and $\sin^2(2\theta)$ limitations. Result of this analysis is exclusion of reactor and gallium anomalies area with 95% CL. Experiment future perspectives are discussed., Comment: 12 pages, 24 figures

Published
2017

7. Experiment NEUTRINO-4 Search for Sterile Neutrino

Author

Serebrov, A. P., Ivochkin, V. G., Samoilov, R. M., Fomin, A. K., Polyushkin, A. O., Zinoviev, V. G., Neustroev, P. V., Golovtsov, V. L., Chernyj, A. V., Zherebtsov, O. M., Martemyanov, V. P., Tarasenkov, V. G., Aleshin, V. I., Petelin, A. L., Izhutov, A. L., Tuzov, A. A., Sazontov, S. A., Ryazanov, D. K., Gromov, M. O., Afanasiev, V. V., Zaytsev, M. E., and Chaikovskii, M. E.

Subjects
Physics - Instrumentation and Detectors
Abstract

In order to carry out research in the field of possible existence of a sterile neutrino the laboratory based on SM-3 reactor (Dimitrovgrad, Russia) was created to search for oscillations of reactor antineutrino. A moveable detector, protected with passive shielding from outer radiation, can be set at distance range 6 to 12 meters from the reactor core. Measurements of antineutrino flux at such short distances from the reactor core are carried out with moveable detector for the first time. The main difficulties of the measurements caused by cosmic background and it heavily decreases the precision of measurements. We present the analysis of measurements at small distances together with the data obtained in measurements at long distances in order to obtain parameters of sterile neutrino., Comment: 6 pages, 5 figures

Published
2017

10. Neutrino-4 experiment on search for sterile neutrino with multi-section model of detector

Author

Serebrov, A. P., Ivochkin, V. G., Samoilov, R. M., Fomin, A. K., Polyushkin, A. O., Zinoviev, V. G., Neustroev, P. V., Golovtsov, V. L., Chernyj, A. V., Zherebtsov, O. M., Martemyanov, V. P., Tarasenkov, V. G., Aleshin, V. I., Petelin, A. L., Ishutov, A. L., Tuzov, A. A., Sazontov, S. A., Ryazanov, D. K., Gromov, M. O., Afanasiev, V. V., Zaytsev, M. E., and Chaikovskii, M. E.

Subjects
Physics - Instrumentation and Detectors
Abstract

In order to carry out research in the field of possible existence of sterile neutrino the laboratory based on SM-3 reactor (Dimitrovgrad, Russia) was created to search for oscillations of reactor antineutrino. The prototype of a multi-section neutrino detector with liquid scintillator volume of 350 l was installed in the middle of 2015. It is a moveable inside the passive shielding detector, which can be set at distance range from 6 to 11 meters from the reactor core. Measurements of antineutrino flux at such small distances from the reactor core carried out with movable detector for the first time. The measurements carried out with detector prototype demonstrated a possibility of measuring a reactor antineutrino flux in difficult conditions of cosmic background at Earth surface., Comment: 15 pages, 6 figures

Published
2016
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11. Creation of a neutrino laboratory for search for sterile neutrino at SM-3 reactor

Author

Serebrov, A. P., Ivochkin, V. G., Samoylov, R. M., Fomin, A. K., Zinoviev, V. G., Neustroev, P. V., Golovtsov, V. L., Gruzinsky, N. V., Solovey, V. A., Cherniy, A. V., Zherebtsov, O. M., Martemyanov, V. P., Zinoev, V. G., Tarasenkov, V. G., Aleshin, V. I., Petelin, A. L., Pavlov, S. V., Izhutov, A. L., Sazontov, S. A., Ryazanov, D. K., Gromov, M. O., Afanasiev, V. V., Matrosov, L. N., and Matrosova, M. Yu.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Phenomenology, Nuclear Experiment
Abstract

In connection with the question of possible existence of sterile neutrino the laboratory on the basis of SM-3 reactor was created to search for oscillations of reactor antineutrino. A prototype of a neutrino detector with scintillator volume of 400 l can be moved at the distance of 6-11 m from the reactor core. The measurements of background conditions have been made. It is shown that the main experimental problem is associated with cosmic radiation background. Test measurements of dependence of a reactor antineutrino flux on the distance from a reactor core have been made. The prospects of search for oscillations of reactor antineutrino at short distances are discussed., Comment: 24 pages, 23 figures

Published
2015

14. On possibility of realization NEUTRINO-4 experiment on search for oscillations of the reactor antineutrino into a sterile state

Author

Serebrov, A. P., Fomin, A. K., Zinoviev, V. G., Ivochkin, V. G., Loginov, Yu. E., Petrov, G. A., Solovey, V. A., Chernyi, A. V., Zherebtsov, O. M., Samoylov, R. M., Martemyanov, V. P., Tsinoev, V. G., Tarasenkov, V. G., Aleshin, V. I., Petelin, A. L., Pavlov, S. V., Svyatkin, M. N., Izhutov, A. L., Sazontov, S. A., Ryazanov, D. K., Gromov, M. O., Afanasiev, V. V., and Rykalin, V. I.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Phenomenology
Abstract

One has investigated possibility of performing NEUTRINO-4 experiment on search for reactor neutrino oscillations into a sterile state at research reactors. The simulated experiment has been conducted at 16 MW reactor WWR-M in PNPI with the purpose of implementing a full scale experiment with the help of 100 MW reactor SM-3 in RIAR. Background conditions for making such an experiment have been examined at both reactors. The conclusion has been made on possible implementation of a full scale experiment NEUTRINO-4 at the reactor SM-3 in RIAR., Comment: 5 pages, 5 figures

Published
2013

17. First Observation of the Oscillation Effect in the Neutrino-4 Experiment on the Search for the Sterile Neutrino

Author

Serebrov, A. P., Ivochkin, V. G., Samoilov, R. M., Fomin, A. K., Polyushkin, A. O., Zinoviev, V. G., Neustroev, P. V., Golovtsov, V. L., Chernyj, A. V., Zherebtsov, O. M., Chaikovskii, M. E., Martemyanov, V. P., Tarasenkov, V. G., Aleshin, V. I., Petelin, A. L., Izhutov, A. L., Tuzov, A. A., Sazontov, S. A., Gromov, M. O., Afanasiev, V. V., Zaytsev, M. E., Gerasimov, A. A., and Ryazanov, D. K.

Published
2019
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19. Sterile Neutrino Search in the Neutrino-4 Experiment at the SM-3 Reactor

Author

Serebrov, A. P., Ivochkin, V. G., Samoilov, R. M., Fomin, A. K., Polyushkin, A. O., Zinoviev, V. G., Neustroev, P. V., Golovtsov, V. L., Chernyj, A. V., Zherebtsov, O. M., Chaikovskii, M. E., Martemyanov, V. P., Tarasenkov, V. G., Aleshin, V. I., Petelin, A. L., Izhutov, A. L., Tuzov, A. A., Sazontov, S. A., Gromov, M. O., Afanasiev, V. V., Zaytsev, M. E., and Ryazanov, D. K.

Published
2018
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21. Experiment for search for sterile neutrino at SM-3 reactor

Author

Serebrov, A. P., Ivochkin, V. G., Samoylov, R. M., Fomin, A. K., Zinoviev, V. G., Neustroev, P. V., Golovtsov, V. L., Gruzinsky, N. V., Solovey, V. A., Cherniy, A. V., Zherebtsov, O. M., Martemyanov, V. P., Zinoev, V. G., Tarasenkov, V. G., Aleshin, V. I., Petelin, A. L., Pavlov, S. V., Izhutov, A. L., Sazontov, S. A., Ryazanov, D. K., Gromov, M. O., Afanasiev, V. V., Matrosov, L. N., and Matrosova, M. Yu.

Published
2016
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23. Neutrino-4 experiment on the search for a sterile neutrino at the SM-3 reactor

Author

Serebrov, A. P., Ivochkin, V. G., Samoylov, R. M., Fomin, A. K., Zinoviev, V. G., Neustroev, P. V., Golovtsov, V. L., Gruzinsky, N. V., Solovey, V. A., Chernyi, A. V., Zherebtsov, O. M., Martemyanov, V. P., Tsinoev, V. G., Tarasenkov, V. G., Aleshin, V. I., Petelin, A. L., Pavlov, S. V., Izhutov, A. L., Sazontov, S. A., Ryazanov, D. K., Gromov, M. O., Afanasiev, V. V., Matrosov, L. N., and Matrosov, M. Yu.

Published
2015
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25. On the possibility of performing an experiment in the search for a sterile neutrino

Author

Serebrov, A. P., Fomin, A. K., Zinoviev, V. G., Ivochkin, V. G., Loginov, Yu. E., Petrov, G. A., Solovey, V. A., Chernyi, A. V., Zherebtsov, O. M., Samoylov, R. M., Martemyanov, V. P., Tsinoev, V. G., Tarasenkov, V. G., Aleshin, V. I., Petelin, A. L., Pavlov, S. V., Svyatkin, M. N., Izhutov, A. L., Sazontov, S. A., Ryazanov, D. K., Gromov, M. O., Afanasiev, V. V., and Rykalin, V. I.

Published
2014
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28. Search for sterile neutrinos with the Neutrino-4 experiment and measurement results

Author

Serebrov, A. P., primary, Samoilov, R. M., additional, Ivochkin, V. G., additional, Fomin, A. K., additional, Zinoviev, V. G., additional, Neustroev, P. V., additional, Golovtsov, V. L., additional, Volkov, S. S., additional, Chernyj, A. V., additional, Zherebtsov, O. M., additional, Chaikovskii, M. E., additional, Petelin, A. L., additional, Izhutov, A. L., additional, Tuzov, A. A., additional, Sazontov, S. A., additional, Gromov, M. O., additional, Afanasiev, V. V., additional, Zaytsev, M. E., additional, Gerasimov, A. A., additional, and Fedorov, V. V., additional

Published
2021
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32. Morphogenetic differentiation of the shores of the contact zones of the North Pacific

Author

Afanasiev, V V, Ignatov, E.I., and Uba, A.V.

Subjects
Aleutian Islands, остров Чугинадак, Kuril Islands, Chuginadak Island, георадар, Iturup Island, остров Итуруп, морфолитодинамика берегов, coastal morphodynamics, Курильские острова, ground penetrating radar, Алеутские острова
Abstract

The results of the analysis of geospatial and geological-geomorphological information on the shores of the contact zones of the North Pacific are presented. An analysis of the maps of the morphogenetic types of coasts of the North Pacific revealed the specifics of the coastal morpholithogenesis of the seas of subarctic and moderate zones. It has been established that for the seas of the North Pacific, a two-modal distribution of the length of coasts of various types is characteristic. The first maximum relates to abrasion-denudation rocky shores, with a significant contribution to the destruction of physical weathering. The second peak is formed by abrasive-accumulative shores. A similar distribution of coast types along with structural and geological features of the coastal structure is probably associated with various stages of coastal maturity under conditions of intense denudation destruction of the coasts of the seas, characterized by a prolonged “open sea” period at negative air temperatures. The morphoclimatic position (geospatial parameters and the related differences in morpholithodynamic parameters) of Sakhalin Island and the island arc systems of the North Pacific allowed us to consider them as contact zones of different types of seas, as well as seas and oceans. The morpholithodynamic characteristics of the shores of contact zones along with the features of hydrodynamics and the thermal regime of the shared water areas also determine the morphoclimatic parameters of the contact zone itself. The Sakhalin shores of the moderately cold northern part of the Sea of Japan and the Subarctic Sea of Okhotsk are 30-140 km apart, while the oceanic and marine shores of large islands in island-arc systems separate the first kilometers. Thus, the windwave fields and their interaction with swell waves in the contact zones are very complex. The temperature regime of the coasts also largely depends on the geospatial parameters of the contact zones. Based on the map of morphogenetic types of coasts, the distribution features of coastal types from the sea and ocean side of island-arc systems are digitized and considered. Cartometric and morphometric studies in conjunction with the data of geological and geomorphological analysis revealed the peculiarities of development and modern dynamics of the sea and ocean coasts of island-arc systems. It is assumed that the longitudinal asymmetry of the low isthmus between the ocean and sea shores is due to tsunamigenic processes. 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Vedushchie klimaticheskie faktory razvitiya ekzogennogo rel'efa [Leading climatic factors of the development of exogenous relief]. Geosistemy Dal'nego Vostoka Rossii na rubezhe XX−XXI vekov. Tom. 1. Prirodnye geosistemy i ikh komponenty [Geosystems of Far East of Russia on boundary of XX-XXI centuries. Chapter 1. Natural geosystems and their components]. Vladivostok: Publ. Dal'nauka, 2008, pp. 77-81. (In Russian). Skryl'nik G.P. Osnovnye urovni ustoichivosti v obshchei organizatsii geosistem Zemli [The basic levels of stability in the general organization of the geosystems of the Earth] Uspekhi sovremennogo estestvoznaniya [Advances in current natural sciences], 2017, no. 11, pp. 101-106. (In Russian; abstract in English). Skryl'nik G.P. Anomal'nye prirodnye protsessy i yavleniya Rossiiskogo Dal'nego Vostoka [Dangerous natural processes and phenomena the Russian Far East] Uspekhi sovremennogo estestvoznaniya [Advances in current natural sciences], 2018, no. 10, pp. 114-124. (In Russian; abstract in English). Tunegolovets V.P., Gartsman B.I., Krokhin V.V. Klimat i gidrografiya [Climate and hydrography]. Geosistemy Dal'nego Vostoka Rossii na rubezhe XX−XXI vekov. Tom. 1. Prirodnye geosistemy i ikh komponenty [Geosystems of Far East of Russia on boundary of XX-XXI centuries. Chapter 1. Natural geosystems and their components]. Vladivostok: Publ. Dal'nauka, 2008, pp. 119–143. (In Russian). Afanas’ev V.V., Ignatov E.I., Uba A.V, Dunaev N.N., Leontiev I.O. Gorbunov A.O. Vetrovoy isthmus of iturup island – holocene strait. IOP Conference Series: Earth and Environmental Science. 2019. Vol. 324. III National scientific conference with foreign participants "Geodynamical Processes and Natural Hazards" 27–31 May 2019, Yuzhno-Sakhalinsk, Russian Federation. DOI: 10.1088/1755-1315/324/1/012029 Griswold F.R., MacInnes B.T., Higman B. Tsunami-based evidence for large eastern Aleutian slip during the 1957 earthquake. Quaternary Research, 2019, vol. 91, iss. 3, pp. 1045-1058. DOI: 10.1017/qua.2018.39 Mallinson D.J., Smith C.W., Culver S., Riggs S.R., Ames D. Geological characteristics and spatial distribution of paleo-inlet channels beneath the outer banks barrier islands, North Carolina, USA. Estuarine, Coastal and Shelf Science, 2010, vol. 88, iss. 2, pp. 175-189. DOI: 10.1016/j.ecss.2010.03.024 Neal A. Ground-penetrating radar and its use in sedimentology: principles, problems and progress. Earth-science reviews, 2004, vol. 66, iss. 3-4, pp. 261-330. DOI: 10.1016/j.earscirev.2004.01.004, Представлены результаты анализа геопространственной и геолого-геоморфологической информации о берегах контактных зон Северной Пацифики. Анализ карт морфогенетических типов берегов Северной Пацифики позволил выявить специфику берегового морфолитогенеза морей субарктической и умеренной поясности. Установлено, что для морей Северной Пацифики характерно двухмодальное распределение протяженности берегов различного типа. Первый максимум относится к абразионно-денудационным скалистым берегам, со значительным вкладом в процессы разрушения физического выветривания. Второй пик формируют абразионно-аккумулятивные берега. Подобное распределение типов берегов наряду со структурно-геологическими особенностями строения побережий вероятно связано с различными стадиями зрелости берегов в условиях интенсивного денудационного разрушения берегов морей, характеризующихся продолжительным периодом «открытого моря» при отрицательных температурах воздуха. Морфоклиматическая позиция (геопространственные параметры и связанные с ними различия морфолитодинамических показателей) острова Сахалин и островодужных систем Северной Пацифики позволили нам рассматривать их как контактные зоны морей разного типа, а также морей и океанов. Морфолитодинамические характеристики берегов контактных зон наряду с особенностями гидродинамики и термического режима разделяемых акваторий определяют также и морфоклиматические параметры собственно контактной зоны. Сахалинские берега умеренно холодной северной части Японского моря и субарктического Охотского моря расположены друг от друга в 30-140 км, в то время как океанские и морские берега крупных островов в островодужных системах разделяют всего несколько километров. Таким образом, ветроволновые поля и их взаимодействие с волнами зыби в контактных зонах имеют весьма сложный характер. Температурный режим побережий также в значительной степени зависит от геопространственных параметров контактных зон. На основе карты морфогенетических типов берегов оцифрованы и рассмотрены особенности распределения типов берегов с морской и океанской стороны островодужных систем. Картометрические и морфометрические исследования в комплексе с данными геолого-геоморфологического анализа позволили выявить особенности развития и современной динамики морских и океанских берегов островодужных систем. Предполагается, что продольная асимметрия низменных перешейков между океанскими и морскими берегами обусловлена цунамигенными процессами. Литература Алексеев Б.А., Голубев Г.Н. Глобальная модель современных ландшафтов мира // География, общество, окружающая среда. Том 2. Функционирование и современное состояние ландшафтов / Отв. ред.: К.Н. Дьяконов, Э.П. Романова. М.: Изд. Дом «Городец», 2004. С. 319-326 Арчиков Е.И. Особенности формирования рельефа берегов Тихого океана в субарктическом и умеренном климатических поясах // Исследования глобальных факторов климорфогенеза Дальнего Востока: сборник трудов. Владивосток: ДВНЦ АН СССР, 1979. С. 70-78. Афанасьев В.В. О новом типе эолового морфогенеза на вулканогенных берегах (о. Итуруп, Большая Курильская гряда) // Геосистемы переходных зон. 2019. Т. 3. №. 4. С. 423-427. DOI: 10.30730/2541-8912.2019.3.4.423-427 Бакланов П.Я. Географические и геополитические факторы в региональном развитии // Региональные исследования. 2014. № 2 (44). С. 4-10. Дзердзеевский Б.Л. Общая циркуляция атмосферы и климат. М.: Наука, 1975. 288 с. Дьяконов К.Н., Варлыгин Д.Л., Ретеюм А.Ю. Влияние океанов на физико-географическую зональность по спутниковым данным о фотосинтезе // Вестник Московского университета. Серия 5: География. 2017. № 2. С. 11-15. Лисогурский Н.И., Петричев А.З. Распространение муссона над Восточной Азией и степень его устойчивости // Метеорология и гидрология. 1980. № 5. С. 54-59. Лихачева Э.А., Тимофеев Д.А. К иерархии геоморфологических систем с позиций их организованности // Геоморфология. 2007. № 4. С. 3–8. DOI: 10.15356/0435-4281-2007-4-3-8 Лихачева Э.А., Тимофеев Д.А. Анализ геоморфологических систем: основные понятия // Геоморфология. 2008. № 2. С. 14- 21. DOI: 10.15356/0435-4281-2008-2-14-21 Лихачева Э.А., Маккавеев А.Н., Локшин Г.П. Физическая сущность геоморфологических границ // Геоморфология. 2010. № 2. С. 3-10. DOI: 10.15356/0435-4281-2010-2-3-10 Национальный атлас России: в 4-х т. Том 2: Природа и экология / Ред. колл.: А.В. Бородко (предс.), В.Н. Александров, В.М. Котляков, Н.Г. Рыбальский и др. М.: ПКО «Картография», 2007. 496 с. Никольская В.В., Скрыльник Г.П. Тенденции развития рельефа природных зон и провинций Дальнего Востока // Климатическая геоморфология Дальнего Востока / Отв. ред. Г.П. Скрыльник. Владивосток: ТИГ ДВНЦ АН СССР. 1976. С. 5-19. Скрыльник Г.П. Ведущие климатические факторы развития экзогенного рельефа // Геосистемы Дальнего Востока России на рубеже XX−XXI веков. Том. 1. Природные геосистемы и их компоненты. Владивосток: Дальнаука, 2008. С. 77-81. Скрыльник Г.П. Основные уровни устойчивости в общей организации геосистем Земли // Успехи современного естествознания. 2017. № 11. С. 101-106. Скрыльник Г.П. Аномальные природные процессы и явления Российского Дальнего Востока // Успехи современного естествознания. 2018. № 10. С. 114-124. Тунеголовец В.П., Гарцман Б.И., Крохин В.В. Климат и гидрография // Геосистемы Дальнего Востока России на рубеже XX−XXI веков. Том. 1. Природные геосистемы и их компоненты. Владивосток: Дальнаука, 2008. С. 119–143. Afanas’ev V.V., Ignatov E.I., Uba A.V, Dunaev N.N., Leontiev I.O. Gorbunov A.O. Vetrovoy isthmus of iturup island – holocene strait // IOP Conference Series: Earth and Environmental Science. 2019. Vol. 324. III National scientific conference with foreign participants "Geodynamical Processes and Natural Hazards" 27–31 May 2019, Yuzhno-Sakhalinsk, Russian Federation. DOI: 10.1088/1755-1315/324/1/012029 Griswold F.R., MacInnes B.T., Higman B. Tsunami-based evidence for large eastern Aleutian slip during the 1957 earthquake // Quaternary Research. 2019. Vol. 91. Iss. 3. Pp. 1045-1058. DOI: 10.1017/qua.2018.39 Mallinson D.J., Smith C.W., Culver S., Riggs S.R., Ames D. Geological characteristics and spatial distribution of paleo-inlet channels beneath the outer banks barrier islands, North Carolina, USA // Estuarine, Coastal and Shelf Science. 2010. Vol. 88. Iss. 2. Pp. 175-189. DOI: 10.1016/j.ecss.2010.03.024 Neal A. Ground-penetrating radar and its use in sedimentology: principles, problems and progress // Earth-science reviews. 2004. Vol. 66. Iss. 3-4. Pp. 261-330. DOI: 10.1016/j.earscirev.2004.01.004, Гидросфера. Опасные процессы и явления, Выпуск 2 2020

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2020
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33. MOTIVATIONAL AND VALUE ATTITUDE OF UNIVERSITY STUDENTS TO THEIR HEALTH AS A BASIS FOR THE IMPLEMENTATION OF HEALTH-REPELLING FUNCTION OF EDUCATION

Author

Fortova L.K., Afanasiev V. V., Dorofeev A. V., Yudina A. M., Fabrikov M. S., Filatova O. V., Maslova A. I., Madzhuga A. G., Fortova L.K., Afanasiev V. V., Dorofeev A. V., Yudina A. M., Fabrikov M. S., Filatova O. V., Maslova A. I., and Madzhuga A. G.

Abstract

The article deals with specific features of the new function of modern education – the healthcreating one. The author reveals the essence of the concept of "motivational and value attitude of university students to their own health," characterizes and describes the psychological and pedagogical determinants that influence the effectiveness of this process. The study presents the conceptual and theoretical foundations of health education, shows the distinctive features of the health-building strategy of human behavior and activities from health-saving, determines the pedagogical conditions that ensure the effectiveness of the process of forming the motivational-value relationship of university students to their health. The author presents the stages of the process of health education of students and identifies factors and methods that allow him to organize it more efficiently.

Published
2020

37. Production of the 178m2Hf Isomer in a Nuclear Reactor.

Author

Afanasiev, V. V., Gromov, M. O., Izhutov, A. L., Koltsov, V. V., Petelin, A. L., Pimenov, V. V., and Sazontov, S. A.

Abstract

A study is performed of the production of the 178m2Hf isomer (T1/2 = 31 years) upon the neutron irradiation of natural hafnium in a water-moderated reactor with a neutron fluence of ~1022 cm−2. It is shown that the 178m2Hf isomer forms mainly in reactions between fast neutrons and isotopes 178Hf or 179Hf. The specific activity of the isomer in irradiated hafnium is around 2 kBq g−1. [ABSTRACT FROM AUTHOR]

Published
2021
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