Present Stage Research Articles

Procurement Disputes Arbitration: Main Problems at the Present Stage

Procurement Disputes Arbitration: Main Problems at the Present Stage

Optimization Decomposition of Monthly Contracts for Integrated Energy Service Provider Considering Spot Market Bidding Equilibria

Under the current power trading model, especially in the context of the large-scale penetration of renewable energy and the rapid integration of renewable energy into the power system, reasonable medium- and long-term decomposition can reduce the fluctuation in the energy price when the integrated energy service provider (IESP) participates in the spot market. It helps to avoid the price risk of the spot market. Additionally, it promotes the optimization of the operation of the regional energy day-ahead scheduling. At the present stage, most of the medium- and long-term contract decomposition methods focus on the decomposition of a single power and take less consideration of the bidding space in the spot market. This limitation makes it challenging to achieve efficient interaction and interconnection among multi-energy resources and smooth integration between the medium- and long-term market and the spot market. To address these issues, this paper proposes an optimal monthly contract decomposition method for IESPs that takes into account the equilibrium of spot bidding. First, the linking process and rolling framework of multi-energy transactions between the medium- and long-term market and the spot market are designed. Second, an optimal decomposition model for monthly contracts is constructed, and a daily decomposition method for monthly medium- and long-term contracts that accounts for the spot bidding equilibrium is proposed. Then, the daily preliminary decomposition result of medium- and long-term multi-energy contracts is used as the boundary condition of the day-ahead scheduling model, and the coupling characteristics of the multi-energy networks of electricity, gas, and heat are taken into account, as well as the operational characteristics. Then, considering the coupling characteristics and operating characteristics of electricity, gas, and heat networks, the optimal scheduling model of a multi-energy network is constructed to minimize the sum of cumulative daily operating costs, and the monthly final contract decomposition value and daily spot bidding space are derived. Finally, examples are calculated to verify the validity of the decomposition model, and the examples show that the proposed method can reduce the variance in spot energy purchase by about 4.64%, and, at the same time, reduce the cost of contract decomposition by about USD 0.33 million.

Features of Applying Judicial Precedent in the Ukrainian judicial system

The article explores the possibility of future application of judicial precedent in the Ukrainian judicial system and the necessity of normative consolidation of its status as a source of law. Additionally, it is necessary to determine the criteria according to which judicial acts will be classified as sources of law. It is important to consider that the legal force of judicial precedent cannot be equivalent to the legal force of legislation; however, it can play a supplementary role and significantly enhance the quality and effectiveness of justice delivery. It analyzes specific works of scholars on the issue of recognizing judicial precedent as a source of law in Ukraine and its application in modern judicial practice. It is argued that the main questions arising during the investigation of the potential application of judicial precedent in Ukraine as a legal phenomenon should be analyzed through comparative analysis with legal systems where precedent is the primary source of law. It is substantiated that comprehensive and thorough research on precedent as a source of law is necessary for further improvement of the judicial system in Ukraine, driven by several reasons. Firstly, the increasing scientific interest in atypical sources of law for our country is associated with the intensive processes of Ukraine's integration into the European and global communities, as well as military actions in the country. Secondly, at the present stage, there is a significant influence of political, geographical, historical, and other factors on the legal space. The third reason for conducting research on judicial precedent is that both precedent and judicial practice are exclusively applied and legally applicable institutions directly related to the practical activities of the judicial system. It is established that unlike judicial practice, a judicial precedent, which is created by individually adopted court decisions of higher judicial instances, is a type of legal provisions developed as a result of judicial practice and one of its forms aimed at overcoming gaps in legislative regulation.

Development prospects for production of filtration equipment in the Russian Federation at the present stage

The article examines the challenges caused by changes in the global situation that the production of filtration equipment faced. The equipment is used for the petrochemical complex. The article assesses prospects for technological independence in the petrochemical complex, including the auxiliary market of filtration and separation equipment. The article provides a statistical analysis of the indicators of the Russian filtration sector and analyses the applied filtration and separation methods in a comparative manner. To determine the prospects of companies producing the corresponding equipment and its individual structural elements, the method of situational analysis was used, with the help of which the features of products manufactured at the present stage that influence the development of business in this economic segment are identified. With the method of economic forecasting, the perspective position of domestic manufacturers in the filtration market was determined. With consideration to the modern developments in the field of industry management and to the given basic concepts used in the management of western companies, the possible ways of introduction of advanced managerial decisions were proposed. It is done in order to improve the position of domestic producers, to develop business and to switch to a new level of product improvement, process optimisation, continuous development of companies’ approaches, and thus respond quickly to the emerging challenges.

Parvovirus B19 infection: characteristics of population immunity in the world

Parvovirus B19 infection (PVI) is one of the relatively new problems in infectology, data on the study of its prevalence in our country began to appear only at the beginning of the twenty-first century. The article presents the results of an analysis of studies from available literature sources highlighting the prevalence of PVI markers at the population level among different social groups of the population at the present stage. The clinical manifestations of PVI are diverse, which requires differential diagnosis, both with exanthemic infectious diseases and with non-infectious pathology. Due to the peculiarity of PVI pathogenesis, it is relevant for various socially significant populations, primarily patients with exanthemic manifestations of various diseases, persons from among blood donors, pregnant women and women planning pregnancy. Furthermore, unlike most countries, our country does not have a system for PVI detecting and reporting in the system of state sanitary and epidemiological supervision, which makes it difficult to conduct research on this topic.

Scuttle flies (Diptera: Phoridae) reared from Spodoptera exigua (Hübner, 1808) (Lepidoptera: Noctuidae) in Iran

The present study on scuttle flies (Diptera: Phoridae) revealed six species of Megaselia, which are all new for the insect fauna of Iran. All six Megaselia species are reared from larvae of Spodoptera exigua (Lepidoptera: Noctuidae) feeding on cauliflower (Brassica cretica Lam.). Four species of Megaselia are described as new to science: M. exspodopera sp. n., M. necalbiclava sp. n., M. nocttuidpasco sp. n. and M. tubuslonga sp. n. We also discovered two females of Megaselia which at the present stage of investigation cannot be linked to the conspecific males.

Engineering and management approach in the sphere of transport and logistics

The article is devoted to the analysis (consideration) of peculiarities of management in the sphere of transport at the present stage of social and technological development. The role of transport and infrastructure projects as a key element of the country’s economic development is described. Being linked into a single comprehensive plan, infrastructure solutions become the basis for the development of a country or territory. It was concluded that with the current form of organisation of transport activities, a two-circuit management system is believed to be optimal, when the role of the state is reduced to planning of long cycles and to the role of economic administrator. The private sector, individual carriers, small companies regulate the quality of service by individualising the supply. One of the most important points of contact between these systems is the sphere of education. The authors describe the concept of engineering and management approach to education. This approach will make it possible to systematically train specialists with both technological and managerial competencies which will become an impetus for the development of economic sectors and strengthening the technological sovereignty of the state. The purpose of the article is to determine the patterns of functioning of the transport and logistics sphere in the framework of supply-side economics, and to consider the engineering and management approach to the training of specialists (for the industry).

FEATURES AND POTENTIALS OF NON-FORMAL ADULT EDUCATION IN UKRAINIAN EDUCATIONAL ENVIRONMENT

The aim of the article ii to define features and potentials of non-formal adult education in Ukrainian educational environment that is focused on adult learners` development and motivation; effective change management; the challenge of real life adult learners can face; ability to prove adult learners can use knowledge to introduce themselves professionally and communicate effectively in everyday situations and work. General scientific methods such as analysis, synthesis and generalization of the scientific information on different theoretical approaches to the problem of non-formal adult education have been used. One of the most important tasks at the present stage of modernizing non-formal adult education in national teaching and learning process is to ensure teaching quality according to both national and international requirements as well as support adult learners in delivering successful learning preparing them for future challenges. This issue is partly a reaction to the rapid changes in technologies adult learners can see around and experience on a daily basis. Information technologies, effective tools and timely forehanded receiving of information are becoming essential and crucial factors in the teaching lifelong education process. There is a need to bring into focus the non-formal adult education process to improve the design and structure of adult learning opportunities. In this article, we address concepts and approaches, which are equipped with appropriate innovative-based effective tools in accordance with the latest requirements identifying key issues that emerge in non-formal adult education, introducing them as substantial elements of teachers’ professional competence and their effective use in lifelong education process. Particular attention is paid to the teacher`s role and significance in nonformal adult education making such a process more meaningful for adult learners.

Agricultural management could reduce soil N2O emissions while increasing grain yields via enhancing soil moisture harvesting and improving soil nutrient status

Intercropping can improve system productivity, but the effect of intercropping integrated with conservation tillage practices on soil N2O emissions remains unclear at the present stage. A 4-yr field experiment was performed in northwest China to examine soil moisture harvesting, soil nutrient status, and soil N2O emissions of wheat-maize intercropping with stubble residues and films management. We found that intercropping increased crop yields and reduced soil N2O emissions over monocultures. Across the intercropping treatments, NTSMFI (no-tillage with mulching stubbles and re-using residual films) and NTSSFI (no-tillage with standing stubbles and re-using residual films) boosted grain-yields by 13.8–17.1 % and 12.9–15.4 % over CTFI (conventional tillage without returning stubbles and mulching new films). NTSMFI and NTSSFI reduced soil N2O emissions by 18.4–28.7 % and 15.5–24.9 % compared to CTFI, respectively. So, NTSMFI and NTSSFI obtained a higher soil N2O emission efficiency than CTFI. The greater effect on soil N2O emissions reduction was detected in NTSMFI, and decreased by 5.1–5.4 % over NTSSFI. The main reason for NTSMFI to improve grain-yields and reduce soil N2O emissions was to enhance soil moisture harvesting and optimize the soil nutrient status. Compared to CTFI, NTSMFI increased the ratio of transpiration to evaporation by 14.4–32.0 %, improved soil organic carbon and total nitrogen concentrations, and soil C:N ratio of 0 to 60 cm soil depth by 14.1 %, 7.1 %, and 6.5 %, respectively. Adopting an environmentally clean strategy exemplified by NTSMFI was recommended as an effective technique for increasing-yields and reducing soil N2O emissions in arid irrigated regions.

ВЫБОР МОДЕЛИ РАЗВИТИЯ СЕЛЬСКОГО ТУРИЗМА В РЕГИОНЕ ДЛЯ УСТОЙЧИВОГО РАЗВИТИЯ СЕЛЬСКИХ ТЕРРИТОРИЙ

At the present stage of development of the services market, tourism is becoming one of the most developing areas of activity, which requires constant improvement of quality, diversity of tourism offer and modernization of tourism infrastructure. In the context of scientific and technological progress, tourism, as an area that affects many different industries, serves as an important factor in the economic and socio-cultural development of rural areas. Russia occupies a minor position in the global tourism market. Despite the great tourism potential, its competitive advantage lies in the unique objects of architecture, culture, history and natural heritage, as well as in the national flavor of the country. Rural tourism can become one of the most important areas of economic development, which will contribute to the social, spiritual and economic development of Russian regions and the country as a whole. There is a necessity and need to bring domestic tourism services in line with modern world trends, to increase the competitiveness of Russian travel companies in the tourism services market. The Russian Federation has significant territorial potential and enormous opportunities for the development of large-scale tourism activities. According to the Strategy for the Development of Tourism in the Country until 2035, the main goal is the comprehensive development of the key competitive advantages of tourism in the Russian Federation, due to the presence of many points of attraction for domestic and inbound tourist flows. Due to the presence of a larger number of monuments of cultural, historical and natural heritage in Russia, there are prospects for the development of almost any type of tourism. In this situation, agricultural tourism is of particular importance as one of the most important factors in the sustainable development of rural areas and the agricultural sector.

Palliative care at the present stage in Krasnoyarsk

Palliative medicine, aimed at ensuring the quality of life of patients with severe and incurable diseases, is becoming increasingly important in medical practice. In this article, we consider the current state and prospects for the development of palliative medicine in the city of Krasnoyarsk. The study showed that the number of patients in need of palliative care is increasing, mainly people older than working age with diseases of the cardiovascular system and oncological diseases. Approaches to anesthesia, prevention and treatment of pressure sores in hospice patients are described. The problems include a lack of qualified personnel and violations of the socio-psychological status of medical personnel, limited access to palliative medicine for remote areas of the region.

APPLICATION OF HYDROGELS FOR WATER SHUTOFF TREATMENTS. Message No. 2

The article analyzes the use of hydrogels with nanoparticle additives for well water shutoff, as well as the development of a mathematical apparatus for hydrodynamic modeling of water shutoff operations. One of the most significant trends in the development of gel forming compounds for well water shutoff in the last 10 years has been the use of nanocomposites. The base polymers for nanocomposites used for water shutoff operations are either synthetic or biopolymer origin. The article highlights the novelty and prospects of using nanoparticles in sealing compositions. Various nanocomponent additives are used to increase the success of the use of hydrogel polymer systems in order to limit water inflow and expand the scope of their application in complicated reservoir conditions. These include carbon and mineral nanoparticles, which increase the stability and strength of crosslinked gels in formation conditions.In this paper, we consider the optimization of the repair and insulation operations design using gels for well water shutoff using mathematical modeling, which helps to justify the volume of hydrogel injection and calculate the necessary pressure gradients at which the sealing screen remains stable. The paramount importance of determining the source of well flooding is emphasized, depending on which the processing design is already being built, and appropriate materials are selected; trends in the development of repair and insulation operations at the present stage are traced. Based on the results of the implementation of the proposed model by numerical methods, the authors constructed diagrams of the stability of the waterproofing screen depending on the fracture width, screen size, gel injection rate and reservoir permeability. The technique proposed in the work allows to correctly select and optimize the technological parameters of the operation to maintain the stability of the screen in specific geological conditions.Mathematical modeling allows us to strictly justify the volume of injection of the gel screen, increase the technological and economic efficiency of the process, and in large fields — to rank wells according to the priority of processing. Oilfield practice in various regions of the country fully confirms the main conclusions made in this review article. Preliminary mathematical modeling and the introduction of microdispersions into gel formulations can significantly increase the efficiency of water shutoff operations. The next step in the development of water insulation technologies is the use of nanodispersions, which look very promising in laboratory modeling and are no longer exotic materials with unrealistic cost.

Development of an acoustic doppler flow profiler and flow testing

The flow test with acoustic Doppler current profiler (ADCP) is a new flow test method developed and applied only in the last decade or so. However, because it involves many disciplines such as hydroacoustic physics, ultrasonic transducer technology, electronics, and signal processing, most of the ADCPs used at the present stage are imported, and the domestically produced high-precision ADCPs have a lot of space in the domestic market. This paper introduces the measurement principle of ADCP. Based on this principle, we have overcome the weak signal processing circuit and successfully developed a domestic horizontal fixed acoustic Doppler flow profiler. The instrument is used for flow tests in Yixing (South) Hydrological Station, and the results of the comparison and error analysis meet the requirements of the national first-class precision hydrological station in the “Hydrological Data Compilation Specification” to satisfy the needs of the daily test in the station. The “Horizontal Fixed Acoustic Doppler Profile Flow Rate System” was selected as one of the 100 typical cases of popularizing and applying the achievements of the Ministry of Water Resources in 2020, and it can replace the imported instruments.

Metaphorical models of the concept of "Longing" in the idiostyle of A. P. Platonov

The article is devoted to the identification and analysis of conceptual metaphors that are involved in the implementation of the concept of "Longing" in the works of A. P. Platonov. The subject of the study is the metaphorical models of the concept under study. At the present stage of linguistic science, metaphors are presented as complex phenomena that are not only a fact of language, but reflect the mechanisms of human consciousness and ideas about the world. Conceptual metaphors are considered as a special tool of human cognition, having a culturally archetypal nature. The mechanisms of perception lie in the subconscious of a person, at the level of which there are units of the mental level – concepts represented to a greater extent by conceptual (cognitive) metaphors. Metaphorical models are one of the components of a concept and can be identified with the "signs of the concept that form its structure". The work is carried out in line with the cognitive campaign in linguistics, based on the research of conceptual metaphor. The following methods were used: continuous sampling, descriptive, contextual, modeling. The scientific novelty of the research consists in identifying metaphorical models of the concept of "Longing" in the discourse of A. P. Platonov. As a result of the study, 6 cognitive models of metaphors were identified: "Localization", "Living being", "Substance", "Object", "Organ", "Receptacle". These models represent the idea of the concept of "Longing" as an entity that has a location inside a person, more often it is the heart of a person. This entity is represented as a living being or object. At the same time, if longing is a living being, then a person cannot control it, but can only hide from it, and if longing appears as an object, then a person can manipulate it. Also, longing is thought of as a kind of container that can absorb a person.

IMPLEMENTASI ASSESMEN KURIKULUM MERDEKA DI SD NEGERI 03 PONTIANAK SELATAN

This research aims to describe the implementation of Independent Curriculum Assessment at SD Negeri 03 Pontianak Selatan. The research method applied is descriptive with a qualitative approach. The tools which is used to collect data are interview sheets, questionnaires and documentation. The data analysis technique used is according to Miles and Hubermen with stages of data reduction, data presentation and drawing conclusions. Based on the research results, information was obtained that 1) The assessment planning carried out in schools is: a) The teacher analyzes Learning Achievements (CP) and determines the Learning Goal Flow (ATP) together, b) The teacher determines the Learning Goals and adjusts them to the students' abilities , c) The teacher determines the type of assessment and arranges the implementation schedule. 2) diagnostic assessments are carried out at the beginning of the semester, formative assessments at the end of learning and summative assessments after completing a particular topic or material. 3) 60% of teachers have used the assessment results to improve the learning process. 4) the assessment carried out influences the results of the school education report card. Literacy achievement increased by 16.57 from 83.33 to 100. Meanwhile, the numeracy component achievement experienced a significant increase of 36.67 from 63.33 to 100.

British Society in the reflection of the press: fascist sentiments among the World War I veterans in the 1930s

Importance. The topic of the threat of fascist ideas and movements at the present stage is increasingly being brought up in the framework of public and scientific discussions. The coverage of this problem of the history of Great Britain in the 1930s is connected with the need to study the development of the features of fascism in society and in the society of veterans of the World War I. The novelty of the work is to consider the strengthening of the right-wing sentiments of part of the community of British war veterans in the 1930s, while fascism in Great Britain has been studied most widely by historical science in relation to political organizations and parties. Revealing the connection of veterans with the fascist movement will reveal the essence of the state ideology and the contradiction in public sentiment.Materials and Methods. Within the framework of a historical and systematic approach, the Fascist movement in Great Britain was considered as one of the features of the development of public sentiment. The problem of fascization of British society was the duality of political attitudes. On the one hand, representatives of British fascism were marginals, and on the other, prominent figures of the largest veterans’ organization, the British Legion, were the exponents of the ideas of fascism. Using the prosopographic method, the social and political activities of the World War I veterans were investigated.Results and Discussion. Based on the analysis of the development of Great Britain in the 1930s, the specifics of public sentiment are described. The veteran movement in the country adhered to various ideologies. By the mid-1930s, opinions arose among veteran leaders about the possibility of uniting with the fascists. During this period, the veterans of the World War I themselves, with the assistance of politicians and the aristocracy, as well as the support of capitalist circles, created right-wing radical organizations that openly adopted nationalist, anti-Semitic, and racist positions. The possibility of veterans coming under the influence of fascist organizations actually existed, given the numerous contacts and joint activities both within the UK itself and with foreign organizations and politicians (in particular, with the leaders of the Third Reich and Italy).Conclusion. Prominent figures of the veteran movement (in particular, the British Legion) are responsible for the development of fascism in the UK and have contributed to the policy of appeasing the aggressor. Their activities in the process of unleashing the World War II were derived from the prevailing socio-economic system. In the 1930s, veterans and their leaders became instruments and sometimes representatives of the interests of competing groups of the economically dominant class in Great Britain. Dissatisfaction with the policies of the British governments and the rise of fascist sentiment was reflected in social protest and criticism in the press.

Разработка аудиовизуального курса русского языка как иностранного с национальным культурным компонентом в рамках новой образовательной стратегии Китая

The research aims to present the experience of developing an audiovisual set of textbooks with a national-cultural component “Two Worlds – Two Souls” for Chinese university students in the “Russian Language” training program. The paper discusses the basic requirements for Russian language textbooks in China, the structure and content of the author’s set. The research is novel in that it is the first to propose a model of a set of Russian language textbooks for Chinese students focused on the development of two competencies (auditory and intercultural) and including texts about Russia and China (culture, history, traditions, people) in equal proportions. As a result, it was proved that at the present stage of development of Chinese education, materials based on the principle of a dialogue between native and foreign cultures are necessary, compiled taking into account a gradual increase in difficulty, including texts on traditional and modern topics and contributing to the development of many competencies.

О НОВЫХ ПОДХОДАХ К СОЗДАНИЮ ВЫСОТНО-СПАСАТЕЛЬНЫХ АВТОМОБИЛЕЙ НА СОВРЕМЕННОМ ЭТАПЕ

Information is provided on the development and production of high-altitude rescue vehicles at the present stage, as well as on the transition of domestic standards to the international standardization system within the framework of the states belonging to the Commonwealth of Independent States. The differences between the requirements of modern standards for fire ladders and car lifts, which come into force in Russia on July 1, 2024, and those in force, are considered. The analysis of modern terminology in the design and operation of fire ladders and car lifts, new approaches to some of their parameters, as well as the introduction of additional parameters is given. The requirements for the chassis that ensure the prompt departure of high-altitude rescue vehicles to the place of fire (accident), the conditions for ensuring cargo static and dynamic stability when applying fire extinguishing agents, the need for equipment with control devices and pointers in connection with the use of computer technologies in their control systems have been formed. The technical solutions for providing modern fire trucks with automatic boom stage alignment systems are analyzed, promising approaches to creating boom stage alignment systems are substantiated. The conclusion is made about the compliance of modern high-altitude rescue vehicles with the requirements of Interstate standards.

Модели расчета распределения уровня мощности электромагнитного поля в системах подвижной радиосвязи для малых дистанций в летний период

The statement is substantiated that for the design of mobile radio communication systems at short distances up to 1 000 m, the main recommended calculation models have a significant error, since they were created for calcula-tions of long distances (as a rule, from 1 to 50 km) and have limitations in application. Due to the fact that at the present stage of development of mobile radio communication systems, the frequency ranges are in intensive research and use not only 900 and 1 800 MHz, but also 450-800 MHz sections, as well as from 2 100 to 6 000 MHz, which were not previously used for cellular communication systems, it is necessary to propose additional models necessary for the preliminary design of 3-5 generation systems in the range from 2 100 MHz. The range of radio waves in the ranges from 2 100 to 6 000 MHz is significantly reduced compared to the ranges of 1 800 or 900 MHz. The use of classical calculation models such as the Okumura and COST-231–Hata models at distances less than 1 km is characterized by significant errors and is not recommended by the authors of the models themselves for use at short distances. To solve this problem, new models have been developed for calculating the attenuation of radio signals designed to estimate attenuation at short distances.

Personal Branding Strategies Of The Deputy Mayor Of Surabaya Through The Instagram Account @Cakj1

Competition is becoming tougher, and the easy and fast use of social media has made people more dependent on it. The ease of accessing Instagram social media has made Cak Ji, the Deputy Mayor of Surabaya. He routinely documents his daily activities through photos and videos and uploads them to his personal Instagram account. Researchers seek to analyze the video and photo content uploaded by the individual on their Instagram account, from February 26, 2021, to February 26, 2022. The aim is to determine whether the image displayed is in line with the actual personality or merely a portrayal done to meet content needs on the platform. This study uses the concept of personal branding, particularly through the application of The Eight Laws Of Personal Branding developed. The research method used is qualitative research with a descriptive qualitative approach. In collecting data, the method used is documentation. Data analysis uses the model of data reduction, data presentation stage, and conclusion drawing or verification stage, by interpreting and analyzing the existing data based on the theory used by researchers to draw conclusions. From the research conducted on the Instagram account @Cakj1, it can be shown that Cak Ji's personal branding fulfills the eight main concepts of personal branding by Peter Montonya, namely: 1. (The Law of Specialization), 2.(The Law of Leadership), 3. (The Law of Personality), 4. (The Law of Distinctiveness), 5.(The Law of Visibility), 6. (The Law of Unity), 7. (The Law of Persistence), 8. (The Law of Goodwill).