bluuebunny/crossref_metadata_2025 huggingface dataset:
Numerical Simulation and Experimental Test of the Sliding Core Dynamics of a Pressure Controlled Jet Crushing Tool for Natural Gas Hydrate Exploitation
Authors: Tang Yang , Zhao Peng , Li Xushen , Fang Xiaoyu , Yang Pu
Published: May 2022

A pressure-controlled jet crushing tool (PJCT) for the exploitation of deep-sea natural gas hydrate (NGH) was invented to achieve sediment crushing and cavity creation. The opening and closing of tool is controlled by changing the internal flow rate remotely. It can realize the controllable continuous switching of the working state between horizontal well drilling and cavity creation. A dynamic simulation model of the sliding core was established based on the innovative design scheme of the PJCT and the motion law of its slide core was analyzed under the influence of spring stiffness, friction coefficient, and flow rate loading scheme. Moreover, an engineering prototype of the PJCT was manufactured so that a sliding core motion experiment of the prototype was carried out. When the drilling fluid flow rate reaches 455 L/min, the PJCT can stably complete the self-locking and unlocking functions. Its sliding core needs more time to stabilize with an increase in spring stiffness. Meanwhile, the PJCT could achieve continuous fast switching between the mechanical drilling state and the jet crushing state within a cycle of continuous flow changes. Finally, the kinematic and dynamic working mechanism of the PJCT is verified by the combination of the numerical simulation and the experimental analysis above.
The role of the personal proﬁle of an elderly person in making effective communication between a dentist and a patient. Systematic review
Authors: Kudryavtseva T. V. , Tachalov V. V. , Orekhova L. Yu. , Loboda E. S. , Berezkina I. V. , Shashlova N. Yu.
Published: May 2022

Relevance. The success of medical treatment in the elderly often depends on the doctor’s ability to find an individual approach to a patient, including their personality characteristics, comorbidities and compliance level.

Materials and methods. A systematic search of the literature was carried out of studies published between 2000 to 2020 in the online databases: PubMed, Google Search, and eLibrary. The articles were reviewed if the criteria for inclusion and exclusion were met.

Results. The primary electronic search found 4,314 studies. Upon removing the duplicates and checking the publications for the title and abstract availability, 1,013 studies were selected, whereas the remaining 3,301 publications were excluded as not meeting the above requirements. Subsequently, in exploring the titles and abstracts, full-text of 509 studies was assessed. Of these, 455 publications were excluded for the lack of doctor-patient interaction evaluation. The systematic review included 54 studies for assessment and numerical comparison in this study.

Conclusion. The success of dental treatment in the elderly depends on the patient’s personality profile, their preparedness to follow doctor’s recommendations, and dentist treatment skills and psychological competencies in approaching patients of this age group.
Oral microbial landscape and local defense factors in patients with β-thalassemia major
Authors: Shadlinskaya R. V.
Published: May 2022

Relevance. Oral microbiocenosis, a multi-component system, has specific characteristics during dental and systemic disease development.

Material and methods. The study examined 32 patients with β-thalassemia major and 30 systemically-healthy periodontal patients. The average age of the examined patients was 13-17 years and ≥18 years. We determined the nature of microbiocenosis, which is identified by the spectrum, frequency of occurrence and number of some microorganisms, to establish quantitative and qualitative parameters of normal, commensal and pathogenic oral microorganisms in both groups.

Results. Based on the received data, the mixed oral fluid microbiocenosis structure is qualitatively and quantitatively sufficiently stable in practically healthy subjects; microorganisms are represented by four main genera, namely, Lactobacillus spp., Streptococcus spp., Staphylococcus spp. and Enterobacteriaceae. The oral microflora associated with the development of thalassemia undergoes significant pathological changes with the development of systemic and local immune disorders and dysbiosis. Structural analysis of local defense factors and species representatives of microflora in patients with β-thalassemia major showed that salivary flow rate significantly decreases and the commensal and pathogenic microorganism quantitative and qualitative parameters significantly increase, associated with the comorbidity.

Conclusion. Salivary flow rate significantly decreases, and quantitative and qualitative parameters of commensal and pathogenic microorganisms increase associated with β-thalassemia major. Such conditions lead to the appearance and development of major dental diseases, including inflammatory periodontal diseases.
Oral fluid cytokine balance characteristics in patients with iron deficiency anemia and inflammatory periodontal diseases
Authors: Abramkina E. S. , Petrova T. G. , Pospelova T. I. , Vanyunina V. V. , Zvereva T. V.
Published: May 2022

Relevance. Iron deﬁciency anemia (IDA) has various clinical manifestations, including those in the oral cavity, connected with depressed humoral and cell-mediated immunity. However, there is no clear understanding of the character of the cytokine storm in the oral cavity of these patients. Hence, the study aimed to investigate the amount of pro- and anti-inﬂammatory cytokines in the oral cavity of patients with iron-deﬁciency anemia before and after iron therapy.

Material and Methods. The study included 168 females aged 29.6±1.65 years old, who formed three groups: the main group comprised the patients with IDA, the comparison group included patients with inflammatory periodontal diseases without systemic diseases, and the control group contained the patients without oral inflammatory and systemic diseases. We examined all the patients, determined DMF index, OHI-S (Greene-Vermillion), PBI (Muhlemann-Saxer), gingival inflammation by the РМА index modified by Рarma and determined the level of IL-1β, IL-6, IL-4 and INF-γ in the oral cavity by enzyme immunoassay.

Results. The study determined the clinical signs of periodontal inﬂammation in all patients with IDA before treatment. Inﬂammatory periodontal diseases and IDA combination caused a signiﬁcant decrease of pro-inﬂammatory cytokines IL-1β and IL-6 (9.67 pcg/ml and 20.52 pcg/ml, respectively) in the oral ﬂuid of all the examined compared to the periodontal patients without systemic diseases. Patients with IDA demonstrated an increase of IL-1β (40.58 pcg/ml) and a decrease of IL-4 (25.18 pcg/ml) and INF-γ (46.93 pcg/ml) in the oral ﬂuid after the completion of the iron therapy course.

Conclusion. A decrease in pro-inflammatory cytokine IL-1β and IL-6 levels in patients with IDA and oral inflammation evidenced the changes in the immune response compared to the group of periodontal patients without systemic diseases, which may lead to an unfavourable prognosis. After the iron therapy course, the oral cytokine concentration in patients with IDA corresponded to the oral fluid cytokine profile of comparison group patients, which indicated the compensation of secondary immune deficiency.
Diagnosis of PSAF maladjustment is the ﬁrst step toward biopsychosocial dentistry
Authors: Solovyov M. M. , Orekhova L. Yu. , Solovyova A. M. , Grinenko E. V. , Loboda E. S.
Published: May 2022

Relevance. The article considers three stages in the development of dentistry specialty in Russia: 1) the stage of dental treatment; 2) the stage of biomedical dentistry; 3) the stage of biopsychosocial dentistry. The beginning of the second stage – biomedical dentistry – is associated with Professor A.K. Limberg, the organizer of the first odontology department at the Women's Medical Institute in Russia in 1897. L. Engel, who wrote about the biopsychosocial approach in the journal Science (1977), was the forerunner of biopsychosomatic dentistry.

The concepts of psychosocial-anatomic-functional (PSAF) maladjustment syndrome and the primary express diagnosis method of its severity and structure, developed at the First Saint-Petersburg State Medical University, facilitated the introduction of a biopsychosocial approach into dentistry. The authors regard the PSAF maladjustment diagnosis as the biopsychosocial approach first step to the study of the human health status that will help individually approach comprehensive customized treatment and rehabilitation program planning.

Propose. To show diagnosis possibilities of PSAF maladjustment primary express diagnosis in order to introduce the biopsychosocial standpoint into the diagnosis and treatment of dental patients.

Conclusion. The earliest possible beginning of teaching dental students (first-year students) the skill of PSAF maladjustment express diagnosis has proven to be necessary.

The article presents four clinical cases of PSAF maladjustment express diagnosis application at a dental appointment among patients of different profiles.
A Post Hoc Analysis of KidneyIntelX and Cardiorenal Outcomes in Diabetic Kidney Disease
Authors: Nadkarni Girish N. , Takale Dipti , Neal Bruce , Mahaffey Kenneth W. , Yavin Yshai , Hansen Michael K. , Fleming Fergus , Heerspink Hiddo J.L. , Coca Steven G.
Published: May 2022

Key Points

KidneyIntelX, a bioprognostic test for assessing risk of CKD progression, risk stratified individuals for kidney, heart failure, and death outcomes in the Canagliflozin Cardiovascular Assessment Study.

Individuals scored as high risk seemed to derive more of benefit from treatment with canagliflozin versus placebo.

These findings may serve to increase adoption of underutilized therapies for cardiorenal risk reduction in patients with diabetic kidney disease.
Low Infrared Emissivity and Strong Stealth of Ti-Based MXenes
Authors: Li Xinliang , Li Minghang , Li Xin , Fan Xiaomeng , Zhi Chunyi
Published: May 2022

Advanced scenario-adaptable infrared (IR) stealth materials are crucial for creating localized closed thermal environments. Low emissivity over the broadest possible band is expected, as is superior mechanical deformability. Herein, we report a series of Ti-based MXenes with naturally low emissivity as ideal IR shielding materials. Over a wavelength ranging from 2.5 to 25 
μ
m, Ti
3
C
2
T

X

film delivers an average emissivity of 0.057 with the lowest point of 0.042. Such a low emissivity coupled with outstanding structural shaping capability is beyond the current grasp. The reflection-dominated mechanism is dissected. Also, some intriguing scenarios of IR stealth for wearable electronic devices and skin thermal control are demonstrated. This finding lights an encouraging path toward next-generation IR shielding by the expanding MXene family.
A Geografia na gestão ambiental do território rural/urbano e do turismo
Authors: Souza Valladares Gustavo , Sait Pereira de Andrade Carlos , Pereira dos Santos Raimundo Wilson
Published: May 2022

O Programa de Pós-Graduação em Geografia (PPGGEO) da Universidade Federal do Piauí apresenta orgulhosamente o volume 6 da série Geografia em Debate. Esta obra, focada em pesquisas que se enquadram na temática gestão ambiental do território rural/urbano e do turismo, traz 9 capítulos originados das pesquisas desenvolvidas pelos estudantes e professores vinculados ao Programa. Mais do que um apanhado destas pesquisas, a série contribui com subsídios para uma mais bem embasada discussão que evidencia as singularidades das paisagens piauienses, os lugares e seus cotidianos, os problemas e as contradições dos territórios e as territorialidades emergentes.
THE VIEW OF THE CLINICIAN ON THE PROBLEM OF COVID-19: review
Authors: Yeryomenko Galyna , Bezditko Tetyana , Ospanova Tetyana
Published: May 2022

The review article features the peculiarities in the epidemiological and clinical picture of a new coronavirus infection, COVID-19. The purpose of the review was to analyze the issues of the management. Pathogenetic relationships between SARS-CoV-2 virus, COVID-19 and angiotensin-converting enzyme 2 (ACE2) are assessed. Predisposing factors, which result in development of pneumonia and endothelial dysfunction, disorders in microcirculation, vasocon- striction, work of the renin-angiotensin system with subsequent development of ischemia in certain organs, inflammation and edema of tissues, are analyzed. Lung damage causes devel- opment of interstitial pneumonia, activation of the process of formation of fibrosis and de- creased pulmonary function. Accumulation of anti-inflammatory cytokines, which break the blood-brain barrier, in the CNS can cause dysregulation of central structures, autonomic dysfunction and severe asthenic syndrome, which can maintain low-grade inflammation for a long time. Opportune diagnosis and treatment of concomitant diseases in post-COVID-19 patients are of paramount significance for achieving a positive clinical outcome. The plan of rehabilitation treatment should be individualized according to the patient’s needs. In order to assess remote consequences of COVID-19 all patients require further follow-ups.
Correlations between Elemental Status and Indicators of Oxidative Metabolism in Residents of the Khanty-Mansi Autonomous Okrug with Its Poor-Quality Water Treatment
Authors: Korchina TYa , Korchin VI
Published: May 2022

Introduction: Trace elements found in natural drinking water can play a key role in making up the chemical composition of the human body in the area of residence.
Objective: To study the relationship between indicators characterizing the elemental status and oxidative metabolism of residents of the Khanty-Mansi Autonomous Okrug and poor-quality tap water treatment.
Materials and methods: Hair concentrations of iron, manganese, calcium, magnesium, zinc, and selenium were established in 155 regional residents using atomic emission and inductively coupled plasma mass spectrometry. Contents of the products
of lipid peroxidation (lipid hydroperoxide and thiobarbituric acid reactive substances) and antioxidant defense of the body (total antioxidant capacity and thiol status) were determined in blood serum using test kits. The oxidative stress index was calculated as lipid hydroperoxide × thiobarbituric acid reactive substances / total antioxidant capacity × thiol status.
Results: The residents of the northern Russian cities notorious for poor-quality water treatment have elevated hair levels of Fe and Mn (p < 0.001) and a decreased Se concentration (p = 0.012) combined with a statistically higher level of lipid hydroperoxides, thiobarbituric acid reactive substances, oxidative stress index (p < 0.001), and a low level of antioxidant defense of the body (p < 0.001–0.002). We established a direct correlation between selenium levels in hair and indicators of antioxidant defense status (r = +0,784 ... r = +0,531) and an inverse correlation with lipid peroxidation parameters (r = –0,679 ... r = –0,465).
Accumulation of iron and manganese in the human body is closely related to activation of lipid peroxidation (r = +0,472 ... r = +0,413) and suppression of the antioxidant defense status (r = –0,521 ... r = –0,379). Conclusion: The observed relationships between the parameters of oxidative metabolism give evidence of a weakening of antioxidant protection and activation of lipid peroxidation in the population of the cities of the Khanty-Mansi Autonomous Okrug supplied with poor-quality tap water.
Approaches to the Algorithm of Analyzing the Results of Laboratory Testing of Micro- and Macronutrient Content of Bakery Products: Part 1
Authors: Shcherbakov GD , Bessonov VV
Published: May 2022

Introduction: Data on the chemical composition of food products are important for solving many problems in medical and social spheres. The development of mechanisms for updating existing databases of the chemical composition of foodstuffs, including the need to change approaches to obtaining primary data and develop algorithms of their processing, is in demand.
Objective: To develop an algorithm of obtaining statistically correct values of average concentrations and variability of the main micro– and macronutrients in bakery products.
Materials and methods: To develop and test the algorithm, we used the results of testing bakery products obtained in 2020 within the Federal Project on Public Health Strengthening by the laboratories of the Russian Federal Service for Surveillance
on Consumer Rights Protection and Human Wellbeing (Rospotrebnadzor).
Results: A good separating power was demonstrated by k-means clustering into two groups by the fat content. An algorithm for generalization of data obtained from different laboratories is proposed due to impossibility to assess the whole aggregate of potential errors related to testing, laboratory personnel, data entry, etc. To assess the effectiveness of each stage and the algorithm as a whole, we used the value of the deviation of the resulting variability from the initial one. As a result of processing, this indicator ranged from 5 % for the carbohydrate content to 72 % for the fat content. For the contents of carbohydrates, ash, dietary fiber, vitamin B1, sodium and moisture in both clusters, statistically significant differences were obtained between the processed and original data. This result and the comparability of the obtained values of the mean and variability with the reference ones may indicate the correctness of the algorithm. There were no statistically significant differences between the obtained values of fat and protein content, but the consistency of the order of values with the reference
ones was also recorded.
Conclusion: The developed algorithm made it possible to obtain up-to-date information about the chemical composition of bakery products. Further research should be aimed at testing and, if necessary, adjusting the algorithm for all major food groups.
CHANGES IN THE INTERNATIONAL BUSINESS ENVIRONMENT AND INNOVATION AND INVESTMENT BEHAVIOR OF COMPANIES IN A PANDEMIC CRISIS
Authors: Shkurupii Olha , Deyneka Tatiana , Zahrebelna Iryna , Dyvnych Оlha
Published: May 2022

Introduction. The formation of the international business environment is influenced by crises, including the current pandemic crisis in the economy and society, and the way out of this (the current "new normality") should be sought in the application of innovations and funding opportunities. Innovations determine the opportunities for further development of both business entities and the world community as a whole.
Goal. Study of innovation and investment behavior of companies in the current state of the international business environment, which manifests itself in a pandemic as economic downturn and destruction of market relations due to extreme instability of commodity, resource, money markets and structural deformation of relations between them. at the national and supranational levels.
Methodology. The research was conducted through analysis and synthesis to study changes in the international business environment and innovation and investment behavior of companies in a pandemic crisis; tabular methods for visual presentation of the material.
Results. It is shown that the international business environment has changed the pandemic crisis, comparable to the global financial and economic crisis of 2008. They differ primarily in the cause – uneconomic in the first case and economic in the second; combines – non-cyclical nature of origin and the systemic nature of destructive changes in the economy and society. It was found that the challenges and problems of the pandemic crisis have forced organizations to rethink approaches to doing business and the rapid introduction of innovations such as artificial intelligence, blockchain, Internet of Things, process automation tools. The need for digital transformation of business is emphasized, which is an innovative strategy incorporated into the overall long-term development plan of the company, which determines the content of corporate, functional, competitive strategies. It is proved that the preconditions for the spread of digitalization in the activities of other entities are created through the digital strategy implemented by the initiating company – through its relationships with customers, suppliers, competitors. The scenario of recovery of the world economy according to UNCTAD is considered. It was found that the most difficult thing for the transformation of business in a pandemic crisis is to raise funds for innovation.companies suffer heavy losses, which significantly limits investment.
DIAGNOSTICS OF COMPETITIVENESS OF THE RESOURCE POTENTIAL OF THE ENTERPRISE IN THE CONTEXT OF INNOVATIVE NEEDS TAKING INTO ACCOUNT THE DYNAMICS OF INTENSITY OF MARKETS FOR SALE OF COMMODITY PRODUCTS
Authors: Afanasiev Yevhen , Fertas Nadjib
Published: May 2022

The article is based on the idea of forming conceptual foundations for diagnostics of the competitiveness of the resource potential of the enterprise based on the study of relevant innovation needs taking into account the dynamics of the intensity of markets for sale of commodity products. The relevance and importance of this study is emphasized by modern globalization and transformation processes in commodity markets, especially in markets of raw materials. Fluctuations in prices and rapid dynamics of change in both supply and demand require to ensure the stable development of the study of enterprises and analysis of competitiveness of their resource potential in order to form a further strategy for their successful development.
The article develops tools for assessing the level of competitiveness of the resource potential of the enterprise in the context of innovation needs taking into account the dynamics of the intensity of markets for sale of commodity products based on the criterion of profit maximization «marginal revenue  marginal costs». On the basis of the conducted research the diagnostics of the level of competitiveness of the resource potential of the enterprise in the context of innovation needs taking into account the dynamics of intensity of markets for sale of commodity products, on which basis it is proposed to build an evaluation matrix. It is offered to apply a methodical approach of construction of a range of diagnostics of dynamics of change of a ratio of the net income and prime costs of the sold production of the enterprise.
Using the data of financial statements, the calculation of quantitative values of the multiplicative integrated indicator of competitiveness of the resource potential of the enterprise in the context of the dynamics of markets for sale of commodity products (pellets) of PJSC «Poltava GZK» by the criterion «marginal revenue  marginal costs» in 2014, the integrated assessments of the level of competitiveness of the resource potential were built depending on the trends of its state in the context of the relevance of innovation needs, and taking into account the dynamics of the intensity of markets for sale of commodity products.
According to the diagnostics of the dynamics of changes in the ratio of net income and cost of sales of the enterprise based on the criterion of profit maximization «marginal revenue  marginal costs» it was concluded that there is no special need for innovative changes at the moment at PJSC «Poltava GZK».
JUSTIFICATION OF METHODS OF MANAGEMENT OF PROCUREMENT OF MATERIAL RESOURCES BY AGRICULTURAL ENTERPRISES
Authors: Varchenko O. , Herasymenko I. , Varchenko O. , Verniuk N.
Published: May 2022

Introduction. It is proved that one of the tools to ensure the competitiveness of agricultural enterprises are the principles and models of logistics, including purchasing. It is argued that the main tasks of the procurement logistics of agricultural enterprises are to improve the quality, optimize the composition and structure of material resources used in production, compliance with scientifically sound standards of their consumption, which saves production costs, and ultimately – increase competitive advantage. market segments. It is established that the largest share of total logistics costs falls on the supply and management of stocks, which can be from 50-60% of the total logistics costs. That is why the substantiation of management models for the procurement of material resources for agricultural enterprises is a topical issue in modern economic conditions.
Goal. The purpose of the article is to generalize the theoretical and methodological provisions and substantiate the models of management of procurement of material resources by agricultural enterprises.
Method (methodology). The following methods were used during the research: abstract-logical and monographic methods in the process of theoretical generalization and formulation of conclusions; method of system analysis, abstract-logical, process method allowed to systematize procurement management models and justify their feasibility in the activities of agricultural enterprises. Method of retrospective analysis, induction and deduction in comparative analysis of methods of purchasing material resources and determining their advantages and disadvantages.
Results. The terms "procurement management" and "supply" were clarified, and supply logistics was considered as part of the process of strategic management of material and related flows. It is established that the procurement management of an agricultural enterprise should be considered as a function of supply logistics, responsible for organizing the purchase of the required number of goods and services of appropriate quality with the optimal level of costs in a timely manner. The existing methods of inventory management and calculation of order parameters are analyzed, the possibilities of their use in the practical activity of agricultural enterprises are substantiated. It was found that the existing methods take into account the price factor as a static value and argued the need to take into account the price as a dynamic value in the case of purchases of goods, which are characterized by price instability.
EVOLUTION OF SUSTAINABLE RURAL DEVELOPMENT THROUGH THE FUNCTIONING OF MAIZE MARKETS AND PLANT PROTECTION MEANS UNDER DIGITATION AND DECENTRALIZATION
Authors: Vdovenko Nataliia , Nevesenko Anna , Margasova Viktoriya , Korobova Nataliia
Published: May 2022

Introduction. Recent economic processes, formed in the context of global transformations, significantly change the approaches to the functioning of industry markets, including the domestic market of corn and plant protection products. It is impossible to solve the problems related to determining the impact of factors on the evolution of sustainable rural development through the operation of markets for corn and plant protection products in the context of decentralization, unless the effectiveness of this process is assessed in local communities in the context of digitalization and decentralization. Therefore, it is necessary to prove the feasibility of determining the level of sustainable development by estimating using the ISP index as the sum of indices for three dimensions: economic (Iekon), environmental (Iekol) and social (Isoc) with the appropriate weights.
The aim of the work is to substantiate the trends of evolution of sustainable rural development through the functioning of the markets of corn and plant protection products in the context of digitalization and development of decentralization processes in Ukraine.
Methodology. The methodological principles of sustainable rural development have been improved, as well as a comprehensive assessment of the functioning of sectoral markets and their components, which are characteristic of sustainable agricultural production in four-dimensional space by applying a systematic approach. Based on the panel data model with fixed effects, the fundamental principles of methodological support for sustainable rural development in the context of digitalization of the economy and decentralization in Ukraine are revealed; analogies and comparative comparisons – to determine the characteristics of implementation, the ratio of aspects of comprehensive assessment of the functioning of the markets of corn and plant protection products and their components, which are characteristic of sustainable agricultural production in four-dimensional space, taking into account industry specifics and business opportunities; method of decomposition – to decompose the fundamental principles of methodological support for sustainable rural development in the context of digitalization of the economy and decentralization in the context of global transformation processes.
Results. Approaches to the functioning of various industry markets have been developed, including the domestic market of corn and plant protection products, taking into account the processes of digitalization in the economy of agricultural enterprises. It is concluded that for the final consumer, due to the large number of maize seed on the market, the potential and actual cost of using available plant protection products should be assessed, which will be key factors in increasing the efficiency of each hectare of field.
EFFICIENCY OF USING LAND RESOURCES IN THE AGRICULTURAL SECTOR IN THE CONTEXT OF FINANCIAL INSTABILITY
Authors: Gvozdej Nataliia
Published: May 2022

The article examines the areas of state support for the agricultural sector of Ukraine. The peculiarities of the system of state support of agricultural enterprises and measures to improve the mechanism of state support of domestic agricultural enterprises are considered. It is established that the state support of agricultural producers is an indispensable condition for sustainable development of the agricultural sector of the economy and ensuring food security of the state. The essence of land resources of the agricultural sector of the economy in conditions of financial instability is considered. The dynamics and structure of land resources of agricultural enterprises are studied. The peculiarities of the agricultural sector are also highlighted. Factors influencing the financial support of agricultural enterprises, the main suppliers of borrowed sources of financial resources for agricultural enterprises, internal factors of enterprise efficiency are identified. Possible sources of formation of own capital of agricultural enterprises are proposed. as well as the most profitable sources of attracting financial resources. The positive and negative aspects of bank loans and the dynamics of their growth for all enterprises in Ukraine and the leading countries of the world are considered.
THEORETICAL AND PRACTICAL ASPECTS OF MANAGING THE FINANCIAL AND ECONOMIC SECURITY OF BANKS
Authors: Karcheva Ganna , Karcheva Iryna
Published: May 2022

Introduction. Existing economic and managing ways to ensure the financial and economic security of banks in Ukraine are not always reliable tools, because its mostly relate to certain aspects of the bank's activities, rather than the bank as a whole open dynamic dynamic system. According to the system approach, the basis of security of such systems is the bank's compliance with stability and dynamic balance. In this case, the stability should be considered in three aspects – the stability of the trajectory of development, the stability of the attractor and structural stability.
The purpose of the study is the theoretical justification and development of practical recommendations for the building an effective system of financial and economic security management of banks considering the risks in its activities.
Method (methodology). The methodological basis of the study is a systematic approach, methods of analysis and synthesis, theoretical and logical generalisations and hypotheses, economic and mathematical methods.
Results. It was justified the expediency of using an integrated model of financial and economic security management of banks, which is based on an effective risk management system and provides a systematic process of risk identification, measurement, monitoring, control, reporting and appropriate regulation at all organizational levels. The proposed integrated model should include such basic components as: assessment of the existing security potential of the bank; adaptive (stabilizing) mechanism; obtaining a synergistic effect. The building of an effective system for managing the financial and economic security of banks is impossible without high-quality diagnostics and constant monitoring of the security potential of banks. A summary indicator has been developed to assess the potential of financial security of banks assessment, which is calculated on the basis of risk and the available potential of the bank's strength. It is proposed to use early warning signals that consider the dynamics and variability of liquidity and performance of banks. Experimental testing of the proposed instruments was carried out according to the financial statements of banks. The article reveals the essence of financial and economic security of banks and identifies components of the mechanism of bank security management. Developed conceptual approaches involve the use of preventive methods to prevent threats to the security of banks.
ELABORATION AND CHARACTERIZATION OF ORGANIC MEMBRANES: EFFECT OF POLYMER BLENDING ON COMPETITIVE TRANSPORT OF METAL IONS
Authors:   ", ZIOUI DJAMILA ,   Unité de Développement des Equipements Solaires, UDES,  Centre de Développement des Energies Renouvelables, CDER, 42004, Tipaza, Algeria ", AOUDJIT LAMINE ,   "Unité de Développement des Equipements Solaires, UDES,  Centre de Développement des Energies Renouvelables, CDER, 42004, Tipaza, Algeria ", ABURIDEH HANENE ,   "Unité de Développement des Equipements Solaires, UDES,  Centre de Développement des Energies Renouvelables, CDER, 42004, Tipaza, Algeria ", TIGRINE ZAHIA ,   "Unité de Développement des Equipements Solaires, UDES,  Centre de Développement des Energies Renouvelables, CDER, 42004, Tipaza, Algeria "
Published: May 2022

Polymeric membranes used for selective transport and separation of metallic ions have emerged in recent times. Their expansion depends on the method of preparation and their suitable structure and physico-chemical characteristics. In this paper, a novel category of membranes for ions separation is reported. The membranes were synthesized by the solvent evaporation method, using a mixture of polysulfone (PSL) and cellulose triacetate (CTA) or poly(methyl methacrylate) (PMMA). The synthesized membrane exhibited hydrophobicity and thermal stability at more than 120 °C, as well as a more or less porous structure. The competitive transport of Ni(II), Zn(II) and Pb(II) from aqueous solutions through the polymeric membranes was studied. Competitive transport experiments through the synthesized membranes showed that Ni(II) was selectively and efficiently transported by the three types of membranes, a transport efficiency exceeding well over 45% being achieved by using the PSL based membrane at an optimal concentration of 25 ppm.
ECO-FRIENDLY TECHNOLOGY FOR REACTIVE DYEING OF CATIONIZED FABRICS: PROTIC IONIC LIQUIDS AS INNOVATIVE MEDIA
Authors:   Department of Chemical Engineering, Federal University of Bahia, Salvador, Brazil, BARROS SAFIRA M. , ANDRADE REBECCA S. ,   CETENS, Federal University of Recôncavo da Bahia, Feira de Santana, Brazil, TORRES DEISE ,   Department of Textile Engineering, State University of Maringá, Goioerê, Brazil, CHIARI-ANDRÈO BRUNA G. ,   Faculty of Pharmacy, University of Araraquara – UNIARA, Araraquara, Brazil, VELOSO GABRIELA B. R. ,   Department of Chemical Engineering, Federal University of Bahia, Salvador, Brazil, GONZALEZ CRISTINA ,   "Department of Chemical Engineering, Faculty of Pharmacy,  University of the Basque Country, UPV/EHU, Vitoria, Spain ", IGLESIAS MIGUEL ,   Department of Chemical Engineering, Federal University of Bahia, Salvador, Brazil
Published: May 2022

Because of the limitations of traditional dyeing technologies, large amounts of water and chemical additives are used in the dyeing processes, resulting in enormous quantities of polluted wastewater, which has a huge health and environmental potential impact. In the last few years, the interest in researching alternative techniques/materials for the textile industry to reduce the consumption of water used to improve dyeing quality, has considerably increased. Continuing previous research, in this paper, we present a non-aqueous dyeing procedure, testing different types of fabrics with a polyfunctional reactive dye and protic ionic liquids (PILs) as reaction environment, and with cationization pretreatment of the tested fibers. To analyze the effectiveness of the proposed procedure, currently established dyeing quality parameters, such as color absorption and wash fastness of the dyed multifiber fabrics, have been measured and analysed. The obtained dyeing results should be explained by the affinity of cationized multifibers to the reactive dye, as well as by the efficiency of the mechanisms of dye diffusion and chemical bonding on the tested fabrics in protic ionic liquid environment. This new proposed “universal dye” for all kinds of fibers in PIL environment was analyzed under different operational dyeing conditions. The obtained results were satisfying when compared with standard dyeing quality parameters reported in earlier published literature, thus opening opportunities for innovation and optimization.
"ADSORPTION OF AMARANTH ONTO NATURAL PEANUT HUSK AND CATIONIC SURFACTANT-MODIFIED PEANUT HUSK FROM AQUEOUS SOLUTION: KINETIC, ISOTHERM AND THERMODYNAMIC ANALYSES "
Authors:   Department of Chemistry, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh, GHOSH POLLOB , SAHA SOMA ,   Department of Chemistry, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh, BISHWAS RATON KUMAR ,   Department of Chemistry, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh, KARMAKER SUBARNA ,   Department of Chemistry, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh, SAHA TAPAN KUMAR ,   Department of Chemistry, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh
Published: May 2022

Natural peanut husk (NPH) and hexadecyltrimethylammonium bromide (CTAB)-modified peanut husk (MPH) were used to study the adsorption characteristics of amaranth in aqueous solution. NPH and MPH were characterized by Fourier transform infrared (FTIR) spectroscopy. The pHzpc values of NPH and MPH were estimated to be 5.06 and 5.96, respectively. The adsorption of amaranth onto both adsorbents was confirmed by the observations of field emission scanning electron microscopy (FE-SEM) and energy dispersive X-ray (EDX) analysis. Adsorption kinetic experiments were conducted at various contact time, solution pH, initial dye concentration, temperature, and ionic strength, respectively. Dye adsorption kinetics pursued the pseudo-second-order kinetic model. Adsorption isotherms obeyed the Langmuir model with the highest dye adsorption capacity of 20.88 µmol/g for NPH at pH 2, and 117.65 µmol/g for MPH at pH 4. The values of activation energy (Ea) for the adsorption process were determined to be 48.68 kJ/mol for NPH and 16.92 kJ/mol for MPH, respectively. Thermodynamic data confirmed that amaranth adsorption onto both adsorbents was an endothermic spontaneous physisorption process. The release of amaranth from dye-loaded adsorbents was performed in HCl solution (pH 1) and the recycled adsorbents were utilized six times without significant loss of their adsorption capacity.
Vertically aligned carbon nanotubes grown from Langmuir–Blodgett films with nano alloy particles
Authors: Sakurai Shohei , Iida Mayu , Okunuki Kosei , Kushida Masahito
Published: May 2022

In this study, we attempted to grow vertically aligned carbon nanotubes (VA-CNTs) from Langmuir–Blodgett (LB) films with accumulated nanoparticles and compare and evaluate the results with VA-CNTs grown from LB films with accumulated AlFe2O4 nanoparticles in the addition to CoFe2O4 and Fe3O4 nanoparticles. CVD was performed on the accumulated LB films under the following conditions. As a result, VA-CNTs grown from smaller AlFe2O4 nanoparticles were 4 to 5 times higher than from bigger AlFe2O4 nanoparticles. When VA-CNTs were grown by varying the catalyst area ratio with palmitic acid, VA-CNTs with AlFe2O4 nanoparticles were longer than those grown from Fe3O4 nanoparticles and CoFe2O4 nanoparticles when the catalyst area ratio was less than 0.2. The inner diameter of VA-CNTs grown with AlFe2O4 NPs gradually decreased with decreasing catalyst area ratio and approached the original particle diameter, similar to the case with Fe3O4 NPs.
Emergence of Machine Learning Techniques in Ultrasonic Guided Wave-based Structural Health Monitoring
Authors: Sattarifar Afshin , Nestorović Tamara
Published: May 2022

Identification of damage in its early stage can have a great contribution in decreasing the maintenance costs and prolonging the life of valuable structures. Although conventional damage detection techniques have a mature background, their widespread application in industrial practice is still missing. In recent years the application of Machine Learning (ML) algorithms have been more and more exploited in structural health monitoring systems (SHM). Because of the superior capabilities of ML approaches in recognizing and classifying available patterns in a dataset, they have demonstrated a significant improvement in traditional damage identification algorithms. This review study focuses on the use of machine learning (ML) approaches in Ultrasonic Guided Wave (UGW)-based SHM, in which a structure is continually monitored using permanent sensors. Accordingly, multiple steps required for performing damage detection through UGWs are stated. Moreover, it is outlined that the employment of ML techniques for UGW-based damage detection can be subtended into two main phases: (1) extracting features from the data set, and reducing the dimension of the data space, (2) processing the patterns for revealing patterns, and classification of instances. With this regard, the most frequent techniques for the realization of those two phases are elaborated. This study shows the great potential of ML algorithms to assist and enhance UGW-based damage detection algorithms.
Implementasi Gerakan Literasi Sekolah di SD Negeri 48/I Penerokan
Authors: Risdaliani Risdaliani , Sari Diana Ayu Puspita , Ilham Muhammad , Syahrial Syahrial , Noviyanti Silvina
Published: May 2022

This research discusses about the form of literacy implementation at SDN 48/I Penerokan. Literacy is a person's language skills (listening, speaking, reading, and writing). According to the national literacy movement, there are six kinds of basic literacy that students must possess, namely: numeracy literacy, scientific literacy, financial literacy, cultural literacy and digital literacy. This study uses a qualitative research with descriptive method, to describe the activities of teachers and students in the implementation of literacy education at SDN 48/I Penerokan. This study shows that the implementation of literacy education can provide a positive attitude to increase students' abilities and motivate. The problem faced by SDN 48/I Penerokan in the GLS is the low interest in reading in students. With some refraction within a class such as reading 15 minutes before the learning starts while outside ization is a library visit and a reading corner helps students increase student interest.
Peran Orang Tua dalam Meningkatkan Pendidikan Karakter Anak Usia Dini pada Aktivitas Pembelajaran di SDN 55/1 Sridadi
Authors: Pertiwi Diah , Sipayung Marihani Desnawati , Syahrial Syahrial , Noviyanti Silvina
Published: May 2022

This study aims to examine the role of parents in improving early childhood character education in learning activities at SDN 55/1 Sridadi. This research method uses a qualitative case study approach. The data collection technique used an interview with the homeroom teacher of class V. Observations in class V at SDN 55/1 Sridadi and study of documentation such as diaries, and work documented in the classroom. Technical analysis of data by selecting the data that is needed and discarding data that is not needed, then it is presented in a complete and well explained, and concluded and verified the data. The results of this study indicate the role of parents in improving children's character education through learning strategies and methods. At SDN 55/1 Sridadi together with parents and teachers must work together and communicate with each other through diaries or meet directly regarding child development.
Penerapan Pembelajaran Matematika Materi Geometri di SDN 34/I Muara Bulian
Authors: Desria Yesi , Manzis Ilhan , Ulva Devi Aulia , Syahrial Syahrial , Noviyanti Silvina
Published: May 2022

The problem of this research is how the process of learning mathematics on geometry material is easy to understand, enjoy, and does not make students feel bored with the material so that it can lead students to academic achievement at national and international levels. The purpose of this study is to describe the planning, implementation, evaluation, and obstacles in learning mathematics with geometry material. The research method uses descriptive qualitative. Data collection techniques are semi-structured interviews, non-participating observations, and documentation studies. The subjects of the study were lecturers of geometry experts, school principals, fifth grade mathematics teachers, and fifth grade students. The results showed that the planning, implementation, and evaluation of mathematics learning for class V gemoteri materials went well, coherently, pleasantly and without obstacles. meaning for both teachers and students.
Efektivitas Alat Permainan Edukatif (APE) terhadap Perkembangan Kognitif Anak Usia Dini
Authors: Damayanti Peby Dwi , Muslihin Heri Yusuf , Rahman Taopik
Published: May 2022

The purpose of writing this article is to find out whether educational game tools are effective for early childhood cognitive development. This research is library research, namely research that uses library data collection methods, or research whose objects are extracted from various library information (books, encyclopedias, scientific journals, and documents). The effectiveness of the Educational Game Tool (APE) is quite effective on Early Childhood Cognitive Development. There are several educational game tools, both modern and traditional that are useful for improving children's cognitive development, including 1) Role playing, 2) Congklak, 3) Playing Legos, 4) Puzzles. It can be said that through some educational game tools it is effective to improve children's cognitive development such as puzzle games, congklak, and so on, while some educational games are not effective to improve early childhood cognitive development.