Statistical Approximation of Fourier Transform-IR Spectroscopy Data for Zinc White Pigment from Twentieth-Century Russian Paintings

We present a statistical model for approximation of experimental Fourier transform-IR spectroscopy (FTIR) data for paint samples from paintings of different ages. The model utilizes random variations in some parameters (initial ageing rate, degree of change in ageing rate and time at which the change occurs). We determine the parameters characterizing variation in the paint composition and the storage conditions for the paintings. The numerical calculation is qualitatively consistent with the experimental data. In the proposed model, changes in the initial composition of the paint and the storage conditions make about the same contribution to the experimentally observed scatter in the data points

Development of Internal Tourism in Kaliningrad Region

Kaļiņingradas apgabals ir unikāla Krievijas Federācijas teritorija ar īpašu ģeogrāfisko atrašanās vietu, kurai ir liels dabas un vēsturiskais potenciāls tūrisma attīstībai. Maģistra darba mērķis ir novērtēt situāciju tūrisma jomā šajā reģionā, tā turpmākas attīstības priekšnoteikumus, kā arī sagatavot priekšlikumus, lai sekmētu iekšzemes un starpvalstu tūrisma attīstību.The Kaliningrad region is unique territory of the Russian Federation with special geographical location which has great natural and historical potentials for tourism development. The master thesis aims to evaluate the state of tourism sphere in the region for further development and to suggest measures for growth of the tourist flow inside region from foreign countries as well from the main territory of Russian Federation

Effects of silicon on plant resistance to environmental stresses: review

The role of exogenous silicon in enhancing plant resistance to various abiotic stressors: salinity, drought, metal toxicities and ultraviolet radiation are presented. The data on possible involvement of silicon in reducing the reactive oxygen species generation, intensity of lipid peroxidation, and in some cases, increasing the activity of enzymes of the reactive oxygen species detoxificators: superoxide dismutase, ascorbate peroxidase, glutathione reductase, guaiacol peroxidase and catalase are analyzed

WHY DIDN’T RUSSIA BECOME A CENTEROF AGRICULTURAL DEVELOPMENT? INSIDER’S VIEW

This article discusses current socio-economic problems of agriculture. The analysis of cases is carried out, typical errors of interaction between the government, business and people are shown on the example of the development of agriculture in the Tyumen region. The conclusion is made about significant errors in the development of the education system of specialists at all levels for agriculture, which lead to the degradation of human capital in rural areas.В работе обсуждаются актуальные социально-экономические проблемы сельского хозяйства. Проведен анализ кейсов, показаны типичные ошибки взаимодействия между властью, бизнесом и людьми на примере развития АПК в Тюменской области. Сделан вывод о существенных ошибках развития системы образования специалистов всех уровней для сельского хозяйства, приводящих к деградации человеческого капитала на селе.Материалы статьи подготовлены автором при поддержке гранта РФФИ № 20-011-00087

Oxidative stress development in the leaves of Amaranthus cruentus L. containing amaranthine under conditions of nighttime low temperatures, soil hypoxia and the combined effects of both stress factors

The investigation of the effect of night chilling up to 4±2oC, soil flooding at the optimal day and night temperature, and the combined effect of these stress factors on the adaptive potential of Amaranthus cruentus L. cv “Krepysh” containing amaranthine showed that changes in the intensity of the peroxide oxidation of lipids and superoxide dismutase activity, varied in antiphase to each other, both in the control and in experimental plants. Due to night chilling, unlike hypoxia, the content of amaranthine decreased shaply at the beginning of the stress period and then increased and significantly exceeded the control level until the end of the experiment. It has been suggested that lowering the temperature induces amaranthine synthesis, whereas with the development of hypoxic stress due to the reactions of reactive oxygen species neutralization, constitutive amaranthine is used. The suppression of plant growth during periods of hypothermia was more pronounced than it was due to soil hypoxia, this phenomenon may be associated with a decrease in the overall level of metabolism under conditions of hypothermia and is another example of the adaptive reactions of plants. It was found that the negative effects of the combined activity of soil hypothermia and soil hypoxia on plants, were greater than the negative effects of each stressor applied separately

Infectious hematopoietic necrosis (review)

Aquaculture in the Russian Federation is an integral part of the agricultural industry of the state economy. Countries with high rates of aquaculture growth (Norway, USA, China, Japan, Canada, etc.) and increasing efficiency of fish farming are the cradles of infectious diseases, which, in case of improper control, invade the territory of other countries and spread to new areas, bearing the risks for the domestic industry too. In recent years, infectious hematopoietic necrosis (IHN) has caused significant damage to fish farms. In 2020, Estonia suffered heavy losses; more than 65 tons of rainbow trout died and were destroyed during the IHN outbreak with a mortality rate of 71%. This was the first IHN case in this country. The aggravation of the epidemic situation at Estonian fish farms poses a threat to the northwestern regions of the Russian Federation, where aquaculture is practiced (the Leningrad Oblast and the Republic of Karelia). In 2022, IHN outbreaks were reported in France, Italy, Finland, Germany, Denmark and Macedonia. IHN-caused deaths were reported at the river trout farm in Georgia in 2023 for the first time. The domestic aquaculture depends on the import of eggs and seed material from Norway, Denmark, Finland and other countries, therefore a regular disease monitoring is urgently needed. The paper provides a brief description of the IHN causative agent, describes its epidemiology, pathogenesis, clinical signs, post-mortem lesions, diagnostic tests, infection control and prevention measures. We have reviewed 88 literature sources to summarize the information

Thermal Treatment of Industrial Wastewater

The paper provides an overview on the major methods of thermal wastewater treatment in the power industry. Here, we present the main advantages and disadvantages of methods based on the concentration of inorganic substances (evaporation or distillation) or the burning of organic compounds (combustion neutralization). The study suggests the possible future directions for the development of thermal wastewater treatment

The structure of the managerial system of higher education’s development

© 2016 Levina et al.The research urgency is caused by necessity of planning regulation of higher education development at all levels of management. The purpose of this article is to develop the structure of a control system of higher education development, the Foundation of which is understanding of the quality of higher education as factor for development of the system and reconcile of the education agents’ interest. Based on the definition of levels, types of control and methods for subordination, the authors have developed an innovative governance structure with the development of higher education system, including: a set of agents of higher education system; a set of relations between entities of management of higher education’s development; the sequence and dynamics of functioning; criteria for management of higher education system; a set of normalized states for agents of higher education; the level of awareness of higher education’ agents in making managerial decisions. This article is intended for researchers and specialists in the field of development of higher education