HORMESIS AND PARADOXICAL EFFECTS OF WHEAT SEEDLING (TRITICUM AESTIVUM L.) PARAMETERS UPON EXPOSURE TO DIFFERENT POLLUTANTS IN A WIDE RANGE OF DOSES

Chlorophyll and carotenoid content (ChCar), lipid peroxidation (LP) and growth parameters (GP) in plants are often used for environmental pollution estimation. However, the nonmonotonic dose–response dependences (hormesis and paradoxical effects) of these indices are insufficiently explored following exposure to different pollutants. In this experiment, we studied nonmonotonic changes in ChCar, LP, GP in wheat seedlings (Triticum aestivum L.) upon exposure to lead, cadmium, copper, manganese, formaldehyde, the herbicide glyphosate, and sodium chloride in a wide range from sublethal concentration to 102-105 times lower concentrations. 85.7% of dose–response dependences were nonmonotonic (of these, 5.5% were hormesis and paradoxical effects comprised 94.5%). Multiphasic dependences were the most widespread type of paradoxical effect. Hormesis was a part of some multiphasic responses (i.e. paradoxical effects), which indicates a relationship between these phenomena. Sublethal pollutant concentrations significantly increased LP (to 2.0-2.4 times, except for manganese and glyphosate) and decreased GP (to 2.1-36.6 times, except for glyphosate), while ChCar was reduced insignificantly, normalized or even increased. Lower pollutant concentrations caused a moderate deviation in all parameters from the control (not more than 62%) for hormesis and paradoxical effects. The seedling parameters could have different types of nonmonotonic responses upon exposure to the same pollutant

Quark Model and Neutral Strange Secondary Production by Neutrino and Antineutrino Beams

The experimental data on $K^0$ and $\Lambda$ production by $\nu$ and $\bar{\nu}$ beams are compared with the predictions of quark model assuming that the direct production of secondaries dominates. Disagreement of these predictions with the data allows one to suppose that there exists considerable resonance decay contribution to the multiplicities of produced secondaries.Comment: 6 pages, no figures, 2 table

ФУНКЦИОНИРОВАНИЕ СОЦИАЛЬНО МАРКИРОВАННЫХ ГЛАГОЛОВ В РУССКОМ ЯЗЫКЕ

The socially marked verbs which describe relations of communicants in a dialogue are considered in the article. The facts that dictionary definitions do not con- sider the social marking of а verb and value of a verb depends on a number of factors is shown оn a material of the National corps of Russian. These facts are the lexical and grammatical polysemy of verb, the concrete form of verb, the real and psychological position of speaker and the general context of the verb use. Functioning of verbs in speech shows that their semantic potential in sense of describing the communication situations is considerable above than it is presented in dictionaries

Impact of Tide-Topography Interactions on Basal Melting of Larsen C Ice Shelf, Antarctica

Basal melting of ice shelves around Antarctica contributes to formation of Antarctic Bottom Water and can affect global sea level by altering the offshore flow of grounded ice streams and glaciers. Tides influence ice shelf basal melt rate (w(b)) by contributing to ocean mixing and mean circulation as well as thermohaline exchanges with the ice shelf. We use a three-dimensional ocean model, thermodynamically coupled to a nonevolving ice shelf, to investigate the relationship between topography, tides, and w(b) for Larsen C Ice Shelf (LCIS) in the northwestern Weddell Sea, Antarctica. Using our best estimates of ice shelf thickness and seabed topography, we find that the largest modeled LCIS melt rates occur in the northeast, where our model predicts strong diurnal tidal currents (similar to 0.4 m s(-1)). This distribution is significantly different from models with no tidal forcing, which predict largest melt rates along the deep grounding lines. We compare several model runs to explore melt rate sensitivity to geometry, initial ocean potential temperature (theta(0)), thermodynamic parameterizations of heat and freshwater ice-ocean exchange, and tidal forcing. The resulting range of LCIS-averaged w(b) is similar to 0.11-0.44 m a(-1). The spatial distribution of w(b) is very sensitive to model geometry and thermodynamic parameterization while the overall magnitude of w(b) is influenced by theta(0). These sensitivities in w(b) predictions reinforce a need for high-resolution maps of ice draft and sub-ice-shelf seabed topography together with ocean temperature measurements at the ice shelf front to improve representation of ice shelves in coupled climate system models

Constructing the Image of Feminism in Russian Media: A Corpus Study

As any social movement, feminism finds its reflection in the media. Media are a full-fledged institution capable of shaping public consciousness, targeting particular social groups, setting standards of mass behavior, and determining the main directions of social development. This research featured Russian news about feminism in terms of event structure.  It covered news headlines published in Russian media in 2014-2021 and retrieved via the Smi2.ru media aggregator. Feminism-related headlines were automatically extracted from a dataset of 8,954 headlines. The subcorpus was analyzed in the Semograph Information System, which made it possible to classify texts, obtain frequency data on certain classes, and establish connections between them. The frequency data analysis was represented as a graphical model of the news space in the field of feminism using the SciVi visualizer. The event and thematic analyses revealed a three-level classification. The media usually informed about events where participants belonged to various social groups that protested against something, e.g., people or performances. The news informed about the actions and reactions of media people and about art sphere. The article introduces a graphical model that shows the links between event components in the headlines. It demonstrated three main areas of action in the field of feminism: art, media, and feminist movements. Each of these fields has its own core and structure. The media sphere appeared to be closed on itself; the art-related news agenda focused mostly on social matters; the field of feminist movements was associated with counteracting and involved descriptions of radical actions. When informing about feminism, the media construct an alternative reality that differs from the real issues that feminism aims at resolving

Innovative Methods in Management and Raising the Quality of Higher Professional Education in Russia

Economic and political changes in contemporary society lead to reforms of many social spheres. The system of education in general and higher professional education in particular is no exception. The issue of ensuring the quality of education has recently attracted great attention in all countries of the world. The key problem of reforming education is raising its quality. In this paper, the object of research was the quality of education provided by higher education institutions. The authors have conducted the analysis of models for raising the quality of education and qualimetry of the laboratory work quality based on a survey of teachers and students. The QFD method was described by the example of its application in five universities of the Russian Federation. It has been proved that this method can provide the university with a planning tool with which higher education institutions can provide services that fully meet the requirements of customers (students, parents, employers, the state and society as a whole), thereby ensuring the suitability of the system to meet external requirements – the Fitness-for-Purpose approach (building goals based on the external environment). In addition, it has also been substantiated that the application of this method in the system of higher professional education will ensure the suitability of the system to achieve its own goals - the Fitness-for-Purpose approach (development, improvement, effective management). Thus, the QFD method will make it possible to support of all types of coordinated activities for the leadership and management of higher education institutions in relation to quality, as well as a set of developed regulatory and methodological documents that determine the content, technologies, methods and means of work of all officials, teachers and students to further improve the quality of educational process, thereby ensuring the competitiveness of higher education institutions and effective development on the global market of educational service

Multi-wavelength observations of afterglow of GRB 080319B and the modeling constraints

We present observations of the afterglow of GRB 080319B at optical, mm and radio frequencies from a few hours to 67 days after the burst. Present observations along with other published multi-wavelength data have been used to study the light-curves and spectral energy distributions of the burst afterglow. The nature of this brightest cosmic explosion has been explored based on the observed properties and it's comparison with the afterglow models. Our results show that the observed features of the afterglow fits equally good with the Inter Stellar Matter and the Stellar Wind density profiles of the circum-burst medium. In case of both density profiles, location of the maximum synchrotron frequency $\nu_m$ is below optical and the value of cooling break frequency $\nu_c$ is below $X-$rays, $\sim 10^{4}$s after the burst. Also, the derived value of the Lorentz factor at the time of naked eye brightness is $\sim 300$ with the corresponding blast wave size of $\sim 10^{18}$ cm. The numerical fit to the multi-wavelength afterglow data constraints the values of physical parameters and the emission mechanism of the burst.Comment: 8 Pages, 3 Figures, Accepted for publication to Astronomy and Astrophysics on 02/04/200

Comportamiento destructivo de una persona en retrospectiva histórica: factores, diagnóstico y prevención

In conditions of the current development of society which is characterized by mounting social, economic and political crises, the problem of destructive behavior of an individual acquires special significance and topicality. The paper presents the results of a theoretical and methodological analysis of this problem in foreign and domestic literature in several areas: analysis of the attitude of society towards destructive behavior in its historical aspect; philosophical and theological approach; sociological and demographic areas in the study of destructive behavior, biological and biochemical; genetic approaches; psychological and socio-psychological aspects in the study of destructive behavior of a person. In view of the analysis of various approaches and areas in the study of destructive behavior, the conclusions have been drawn that destructive behavior is represented as a complex phenomenon, caused by biological factors (genetic predisposition, constitutional features of the body structure, the use of psychoactive substances, etc.), social (economic and social crises ), psychopathological (connection with mental disorders), psychological (especially the system of needs and motives of activity), socio-psychological (the impact of socio-psychological maladaptation and characteristics of the values and meaning sphere of an individual) plans. These factors are interconnected and each of them has its own specific role in the complex of destructive behavior, and therefore it is impossible to obtain a holistic view of the phenomenon under consideration taken separately from the entire system of interconnected components.En las condiciones del desarrollo actual de la sociedad, que se caracteriza por el aumento de las crisis sociales, económicas y políticas, el problema del comportamiento destructivo de un individuo adquiere un significado especial y actualidad. El artículo presenta los resultados de un análisis teórico y metodológico de este problema en la literatura extranjera y nacional en varias áreas: análisis de la actitud de la sociedad hacia el comportamiento destructivo en su aspecto histórico; enfoque filosófico y teológico; áreas sociológicas y demográficas en el estudio del comportamiento destructivo, biológico y bioquímico; enfoques genéticos; Aspectos psicológicos y socio-psicológicos en el estudio del comportamiento destructivo de una persona. En vista del análisis de varios enfoques y áreas en el estudio del comportamiento destructivo, se ha llegado a la conclusión de que el comportamiento destructivo se representa como un fenómeno complejo, causado por factores biológicos (predisposición genética, características constitucionales de la estructura del cuerpo, el uso de sustancias psicoactivas, etc.), sociales (crisis económicas y sociales), psicopatológicas (conexión con trastornos mentales), psicológicas (especialmente el sistema de necesidades y motivos de actividad), sociopsicológicas (el impacto de la mala adaptación sociopsicológica y las características de los valores y la esfera de significado de un individuo) planes. Estos factores están interconectados y cada uno de ellos tiene su propio papel específico en el complejo del comportamiento destructivo y, por lo tanto, es imposible obtener una visión holística del fenómeno en consideración tomado por separado del sistema completo de componentes interconectados