bluuebunny/crossref_metadata_2025 huggingface dataset:
LUMINESCENT DETERMINATION OF EUROPIUM AND CERIUM IN THE JOINT PRESENCE IN SOLUTIONS – MELTS OF EQUIMOLAR MIXTURES NaCl–KCl
Authors: Teslyuk O. I. , Chivireva N. A. , Zinchenko V. F. , Doga P. G.
Published: November 2023

Europium and Cerium belong to lanthanides of variable valency and have similar chemical properties. Luminescent method was proposed for the analytical determination of Eu(III) and Ce(III) with the simultaneous presence in the sample of [EuF3–CeF3 (1:1)]–[NaCl–KCl] (2:8), which is a promising material for detecting UV-solar radiation.
Determination of Eu(III) was carried out by the method of sensitized 4f-4f  luminescence in a complex with nalidixic acid at an emission wavelength of 613 nm, λex =351 nm. During complexation, a standard ratio of Stark components to Europium is observed in the luminescence spectra, in contrast to the spectrum of the sample solution without the reagent. This fact indicates that the formation of complexes not only increases the intensity of Eu(III) luminescence, but also reduces the effect of Cerium present in the solution.
To determine Ce(III), its own luminescence caused by 5d-4f electronic transitions was used at an emission wavelength of 351 nm, λex =263 nm. The presence of Europium ions in the solution does not affect the nature of the luminescence excitation spectra and Ce(III) luminescence spectra.
For the quantitative determination of these lanthanides, the additive method was used, which allows to level the mutual influence of ions, as well as the influence of Ce(IV) on the determination of Ce(III).
It was found that the content of Eu(III) in the melt is 2.44–2.53% weight, which is in good agreement with the data obtained earlier when studying the EuF3 – [NaCl–KCl](1:9) system. Compared to EuF3, the solubility of CeF3 ((0.028–0.032)% weight) is significantly lower than that predicted by previous thermodynamic calculations.
The obtained data allow us to conclude that the solubility of fluoride systems containing Eu in the NaCl–KCl melt is almost the same, and the presence of Ce(III) does not significantly affect the EuF3 dissolution process, and therefore does not affect the properties of the systems [EuF3 – CeF3] – [NaCl–KCl] as detectors of ultraviolet solar radiation.
A secure and robust color image watermarking method using SVD and GAT in the multiresolution DCHWT domain
Authors: Latreche Boubakeur , Naimi Hilal , Saadi Slami
Published: November 2023

This paper introduces an innovative and robust watermarking technique for safeguarding the copyright of color digital images. The method operates within the domain of SVD-based multiresolution discrete cosine harmonic wavelet transforms. In this approach, the pre-processing phase employs successive generalized Arnold transforms to encrypt the RGB watermark layers, significantly enhancing the security of the watermarking algorithm. Subsequently, the blue layer of the host image undergoes R-level 2D-DCHWT processing. The encrypted watermark is embedded by altering the singular values of the host image's approximation coefficients. Additionally, a reliable extraction algorithm is devised to recover the watermark from potentially compromised watermarked images without requiring access to the original image. Through extensive experiments and comparisons with other relevant watermarking algorithms, the findings demonstrate that this scheme effectively embeds a color digital image watermark into the host image. This not only ensures high levels of invisibility but also establishes robustness, making it well-suited for the protection of digital image copyrights.
ENERGIA TRANTSIZIORAKO ETA DESKARBONIZAZIORAKO ESKUALDE ESTRATEGIAK. Grand Est/Grand Reims, Eskozia, Ipar Renania-Westfalia eta Herbehereetako "energia eskualdeetako” kasuen azterketa
Authors: Fernández Gómez Jorge , Larrea Basterra Macarena ,   Universidad de Deusto
Published: November 2023

Txosten honek Europako hiru eskualderen (Grand Est/Grand Reims, Frantzian; Eskozia, Erresuma Batuan; eta Ipar Renania-Westfalia, Alemanian) eta Herbehereetako probintziaz azpiko “energia eskualdeen” energia trantsiziorako eta deskarbonizaziorako estrategiak aztertzen ditu. Lanaren helburua da estrategia horien eta dagozkien ekintza planen ezaugarriak lantzea eta Euskal Autonomia Erkidegorako irakaspenak eta ikaskuntzak ateratzea, beste lurralde eta eskualde batzuk, nazioz azpiko ikuspegi batetik, berotegi efektua eragiten duten gasen isuriak gutxitzeko eta energia trantsizioa bultzatzeko prozesua nola egiten ari diren ikusita. Aztertu ditugun kasuek agerian uzten dute garrantzitsua dela (a) lurralde bakoitzeko errealitate ekonomiko, energetiko eta sozialera egokitutako estrategiak eta irtenbideak diseinatzea; (b) eragileen arteko lankidetza efizientea eta gizarteak trantsizioari babesa ematea sustatuko duten gobernantza sistemak zehaztea; c) I+G+Bko, prestakuntzako eta finantzaketako ekosistemak inplikatzea enpresa berritzaileei laguntza ematen eta jarduera sektoreen deskarbonizaziorako irtenbide sistemikoak garatzen.
A imagem do mundo transmitida pelos mapas: notas para uma alfabetização cartográfica
Authors: Lestegás Francisco Rodríguez , Arce Xosé Carlos Macía , Quintá Francisco Xosé Armas
Published: November 2023

Utilizando um procedimento teórico-metodológico de natureza indutiva, o artigo defende que os mapas são construções sociais que transmitem mensagens ideológicas, culturais e políticas, portanto a intenção da linguagem cartográfica é um ponto de interesse prioritário. É claro que indivíduos e organizações têm sempre usado planisférios para os seus próprios fins, independentemente dos critérios técnicos de precisão perseguidos pelos cartógrafos. Os mapas são representações seletivas e parciais do território, de forma que o seu uso não pode estar à margem dos preconceitos pessoais nem da manipulação política. Não há dúvida de que o mapa é uma ferramenta fundamental na explicação geográfica e, portanto, um instrumento básico para o trabalho dos geógrafos. É também um recurso amplamente utilizado no ensino de geografia, geralmente muito desvinculado de uma educação geográfica autêntica. O trabalho defende que a educação geográfica deve promover a alfabetização geográfica com foco na alfabetização espacial. Especificamente, a Geografia é a disciplina escolar que assume a responsabilidade de contribuir para o desenvolvimento do pensamento ou raciocínio espacial por meio da alfabetização cartográfica.
Alfaletrar histogeográfico: narrativas e mapas mentais de La Serena – Chile
Authors: Costa Christiane Fernanda da , Maia Diego Correa , Reyes Sebastián Órdenes
Published: November 2023

Há diferenças culturais, históricas e evolutivas nas formas como as pessoas pensam sobre si mesmas e sobre o mundo. Não só existem diferenças no que as pessoas sabem, mas também, o que é mais importante, elas pensam de modos muito diferentes sobre o que sabem e sobre o modo como vieram a saber. O presente trabalho buscou fomentar o debate a respeito do ensino da cartografia sistematizada e não sistematizada na disciplina de “Historia, Geografía y Ciencias Sociales”. Nesse sentido, o propósito deste estudo concentrou-se em investigar as representações da localidade produzidas por alunos do 5º ano da Educação Básica em uma escola localizada no munícipio de La Serena, Região de Coquimbo, Chile. A pesquisa foi realizada em 2022 em duas salas de aula com alunos na faixa etária entre 10 e 11 anos. Por meio do método do paradigma indiciário, foi possível observar a subjetividade da representação da localidade, já que cada registro gráfico ou escrito trouxe a história e a leitura de mundo por crianças. Observou-se que, ao explorar a cartografia plural, os alunos trazem memórias, paisagens e vivências do espaço onde vivem, o que não acontece quando se trabalha somente a cartografia sistematizada. Isso se dá pela como essas sensações são construídas: de forma espontânea e natural, tal qual eles compreendem o seu espaço, numa articulação de cotidiano e percepções. Esperamos contribuir para a discussão de novas metodologias de ensino para que se explorem, de maneira interdisciplinar, os conteúdos obrigatórios da matriz curricular, principalmente aqueles relacionados com o ensino de História, Geografia e Cartografia escolar.
A climatologia escolar pela óptica de Aroldo de Azevedo nos livros didáticos O Mundo em que vivemos (1967) e Terra brasileira (1968)
Authors: Mello Bruno Falararo de , Pezzato João Pedro
Published: November 2023

Aroldo de Azevedo foi um importante autor brasileiro de livros didáticos de Geografia. Sua produção bibliográfica se deu entre as décadas de 1930 e 1970 e suas obras didáticas influenciaram gerações de alunos e professores. Neste artigo, apresenta-se uma leitura da climatologia escolar veiculada pelo professor Azevedo em dois livros didáticos de Geografia de sua autoria, os quais, embora distintos, são partes da mesma coleção. O autor apresenta uma climatologia bastante conceitual, com muitas imagens para ilustrar as informações contidas no texto. A despeito de alguns equívocos conceituais, nota-se esmero no tratamento das questões do clima. Duas tendências da climatologia enquanto ciência de referência se mesclam na explanação dos registros da Geografia escolar: de um lado, a climatologia estática, mais tradicional e de cunho separatista, e, de outro, a climatologia dinâmica, com algumas inovações no tratamento do clima, em que se busca compreender a gênese dos fenômenos atmosféricos. Entre essas duas diferentes epistemes, sobressai uma visão bastante sui generis do autor a respeito da climatologia escolar, em especial da tropicalidade brasileira.
Viral cartographies and fake maps on social media platforms
Authors: Seemann Jörn
Published: November 2023

The Internet and social media have made a considerable contribution to the accelerated circulation and diffusion of information. News about people, things, and events frequently spread rapidly without a verification of their truthfulness and open space for fake news and “alternative facts”. This also refers to maps that are posted on platforms like Twitter, Facebook, and Instagram and frequently draw the attention of users and provoke reactions. In this context, the aim of this paper is to discuss maps posted on the Internet in post-truth times and in the light of a critical reading of reality. The paper discusses characteristics of these viral cartographies and fake maps and analyzes maps uploaded to and spread by cartography-themed online platforms. These examples show the reactivity of maps as arguments and ways of world-making that go far beyond the mere graphic representation of a theme or fact, that merge with political worldviews, moral values and cultural prejudice, and require new methodologies for map studies.
Investment Plan and Evaluation of the Transition of a Farm to a Wellness Tourist Farm
Authors: Klakočar Tatjana , Pažek Karmen , Pavić Lazar
Published: November 2023

This study aimed to develop a commercial concept for transforming farms into wellness tourist destinations. The proposed scenario involved the renovation of a hayrack into a highend tourist accommodation, comprising relaxation rooms with panoramic glass walls and the renovation of the barns, as well as an outdoor swimming pond. The research methods includeddescription, compilation, and synthesis to explore the legislation in Slovenia related to investment performance and trends in wellness tourism to support the realisation of the proposed investment. Furthermore, the study used the method of financial estimation of investment using cost-benefit analysis to facilitate the transition. Four datasets were used for the estimation: investment income, investment costs, end value of the investment, and annual interest rate. The estimated investment cost was €530,000 and the total estimated revenue was €192,720, with total costs amounting to 50% of the total income, as well as an annual cash flow of €96,360, which was used in the assessment of the investment return period. According to the findings, the investment return period is 15 years with the lowest annual cash flow and interest rate of 3.5%. However, caution is advised due to uncertainties in the long-term costs of raw materials and energy.
Mobilnost starostnikov glede na njihov kraj bivanja ter spol in starost
Authors: Hadner Maja
Published: November 2023

Prispevek prinasa nekaj spoznanj o mobilnosti starostnikov, ki bivajo v razlicnih naseljih, se razlikujejo po spolu in starosti. Na osnovi podatkov, zbranih z anketiranjem, so bile ugotovljene pogostnosti odhodov od doma, najpogosteje prepotovane razdalje in pogosti nacini premagovanja razdalj pri starostnikih. Zbrane podatke smo primerjali in iskali razlike glede na kraj bivanja, spol in starost.
Bajo la lupa de la química del estado sólido: una breve introducción a la familia de las carbodiimidas/cianamidas
Authors: Bourakhouadar Hicham
Published: November 2023

Las cianamidas y carbodiimidas de metales son un grupo interesante de compuestos inorgánicos dentro de la química del estado sólido. Se han estudiado ampliamente en los últimos años y se han conseguido preparar compuestos de este tipo con metales de todos los grupos: alcalinos, alcalinotérreos, del bloque p, de transición y con tierras raras. Este trabajo es una introducción a esta familia de compuestos en el que se describe las formas de cristalización, los métodos de síntesis y algunas de las aplicaciones potenciales en baterías de ion litio o de ion sodio, así como posibles diodos emisores de luz y como materiales fotoluminiscentes.
Intangible Identity Theft and Intimate Partner Violence
Authors: Stojakovic Nevena , D’Alessio Stewart J. , Stolzenberg Lisa
Published: November 2023

While tougher domestic violence laws and protective orders are frequently credited with attenuating intimate partner violence (IPV), one unexplored explanation for this observed reduction is that intimate partner abusers are shifting their abusive behavior to intangible identity theft to thwart legal mechanisms traditionally used to deter IPV. Unlike the monetary motive associated with document identity theft, intangible identity theft is committed by someone with a preexisting grievance against the victim because the theft’s primary purpose is to tarnish the victim’s reputation. Results from a multilevel analysis show that a woman has a lower probability of being a victim of an intimate rather than nonintimate partner crime in cities with a higher intangible identity theft rate. Such a finding suggests that intangible identity theft may be a form of intimate partner abuse with few adverse consequences for offenders because identity thieves are rarely arrested and prosecuted. Nevertheless, the current study is only preliminary. Further research is needed before our findings and conclusions can be universally accepted.
Risk-based measures for prevention and control of African swine fever (ASF) in pigs
Authors:   Istituto Zooprofilattico Sperimentale della Lombardia ed Emilia-Romagna (IZSLER), Italy, Bellini Silvia
Published: November 2023

This chapter highlights the tools currently available for early detection of the presence of African swine fever (ASF) and biosecurity measures to prevent its spread, including adequate cleaning and disinfection (C&D) procedures.
Meningkatkan Kualitas Pemilu Serentak Tahun 2024 Melalui Pemanfaatan Teknologi Digital
Authors: Fauziah Azkiyah Rahmita , Bimantara Cakra Satria , Bahrenina Kanaya Aulia , Pertiwi Yuhana Erni
Published: November 2023

Holding elections in a democratic country like Indonesia is an implementation of people's sovereignty and is used to elect executive and legislative leaders and form a new government to improve people's welfare. Utilization of digital technology, especially social media, is important in holding simultaneous elections in 2024 to expedite the election process as well as a medium of communication and information to the public or voters. This paper aims to examine the extent of the role of digital technology in facilitating the 2024 simultaneous election stages and encouraging increased public participation. Based on the results of the study it is known that digital technology is used in the election stages by organizers and plays a role in helping the process of organizing election stages to be more efficient, fast, accurate and transparent. On the other hand, improving the skills and expertise of election organizers also needs to be done to increase professionalism and prevent mistakes.
São Paulo e as migrações históricas
Authors: Oliveira Márcio de
Published: November 2023

É com grande prazer que apresento ao leitor de Ideias, o livro organizado por Oswaldo Truzzi, Professor Titular de Sociologia da Universidade Federal de São Carlos. Oswaldo é reconhecidamente um dos mais importantes pesquisadores no campo das migrações internacionais históricas. Nos últimos anos vem coordenando dois importantes, a saber: 1) Percursos histórico-sociais na incorporação de imigrantes no Oeste Paulista (1880-1950) e 2) Interiores comparados: São Paulo, Buenos Aires e outros destinos migratórios, 1850-1950, envolvendo diversos pesquisadores, alguns dos quais autores de capítulos da obra em tela. O livro é resultado destes projetos de pesquisa.
O animal humano e o não humano
Authors: Rosário Bruno Santos , Graffo Leandro
Published: November 2023

Milhões de animais são explorados cotidianamente no mundo devido ao modelo produtivista vigente, presente em todos os aspectos possíveis de exploração. Este artigo, portanto, trata-se de uma reflexão bibliográfica desenvolvida no longo percurso de graduação em Humanidades na Universidade Federal do Sul da Bahia. Os artigos e livros citados foram escolhidos nas plataformas de busca e revistas digitais como a Scielo, o portal da Capes e outros. Autores como Slavoj Žižek propõe uma noção cínica imersa no consciente humano, assim como Mark Fisher afirma que o capitalismo cria um realismo que se sobrepuja sobre o que de fato é real, e é assim, dia após dia, que animais são explorados, nas propagandas, nas embalagens, no alimento humano, em laboratórios e nas suas próprias vidas.
Identifikasi Lingkungan Pengendapan Batubara Berdasarkan Analisis Petrografi Organik pada Formasi Toraja, Sulawesi Barat
Authors: Rachman Rizki Satria , Wibisono Sigit Arso , Hidayat Rahmat
Published: November 2023

Batubara merupakan sumber energi yang digunakan untuk pembangkit tenaga listrik. Pulau Sulawesi merupakan salah satu pulau di Indonesia yang menyimpan potensi batubara, salah satunya di Formasi Toraja. Akan tetapi, batubara tersebut belum banyak diteliti lebih lanjut terutama dari aspek lingkungan pengendapan. Penelitian kali ini bertujuan untuk mengidentifikasi lingkungan pengendapan Formasi Toraja berdasarkan analisis ultimat dan petrografi organik. Metode yang digunakan meliputi beberapa tahapan mulai dari studi pustaka, penyelidikan lapangan, analisis laboratorium, dan pengolahan data. Hasilnya, 39 sampel batubara didapatkan dari singkapan permukaan dan 4 pemboran batubara. Litologi daerah penelitian terdiri dari perselingan antara batupasir dan batulempung dengan sisipan batubara. Batubara pada Formasi Toraja memiliki peringkat lignit – bituminous dengan beberapa sampel termasuk cannel coal. Analisis hasil laboratorium dan log litologi memperlihatkan bahwa lingkungan pengendapan batubara Formasi toraja berada di lingkungan fluvial dengan kondisi mire yang selalu basah pada sungai intermiten yang mengalami banjir pada interval waktu tertentu. Batubara ini dapat terbagi menjadi dua cluster, cluster pertama terbentuk pada bagian cekungan dangkal sedangkan cluster kedua terbentuk pada bagian cekungan dalam.
THE METHOD OF COMPARATIVE EVALUATIONS OF COMMERCIAL OFFERS OF ELECTRICITY SUPPLIERS FOR CONSUMERS WITHOUT HOURLY ELECTRICITY METERING
Authors: Blinov Ihor , Parus Eugene , Klymenko Oleksandr
Published: November 2023

The article highlights the main approaches to choosing the optimal option for purchasing electricity for consumers without hourly electricity metering, who purchase electricity from suppliers at free prices. The components of the cost of electric energy for the final consumer were investigated and the consumer's ability to influence the value of these components was noted. The method of comparative evaluations for the consumer's choice of the optimal commercial offer from electricity suppliers is presented.
ANALYSIS OF THE POSSIBILITY OF CHP FUNCTIONING IN THE ELECTRICITY MARKET UNDER THE CONDITIONS OF INTRODUCTION OF PRICE RESTRICTIONS ON THE MARKET
Authors: Dovhal Maxim , Zamulko Anatolii
Published: November 2023

In the article, the issue of forming a strategy for ensuring competitive advantages of combined heat and power plants in the context of introducing price constraints in the electricity markets is considered, based on the analysis of functional capabilities and the economic component of the existing electricity market model. The factors influencing the formation of the cost of a unit of commodity production of a combined heat and power plant for participation in the electricity markets are also examined.

The work also discusses the issue of adapting thermal power plants to price constraints in electricity markets, which ensures competitiveness and stability of electricity production. The main aspects analyzed in the study include SWOT analysis of CHP plants, examination of regulatory mechanisms such as ancillary services for frequency and active power regulation, and modernization and environmental adaptation strategies.

Within the framework of the study, possibilities for enhancing the competitive advantages of CHP plants are considered, such as the introduction of the latest technologies, the development of the renewable energy market, and increasing capacity. At the same time, attention is paid to threats related to the decline in demand for electricity, changes in the fuel market, and regulatory constraints on harmful emissions.
CRITERIA AND CONDITIONS OF THE INTER-CIRCUIT THERMODYNAMIC INSTABILITY OF THE NPP’S MODERNIZED TURBINE SYSTEM
Authors: Skalozubov Vladimir , Kondratyuk Vadym , Filatov Volodymyr
Published: November 2023

The original method of determining the criteria and conditions of inter-circuit thermodynamic instability in the modernized system "steam turbine - regeneration system with absorption heat pumps" is presented. This was developed through a thermodynamic analysis of the effect of independent fluctuating deviations from equilibrium in both the wet vapor flow at the absorption heat pump inlet and the measured pressure in the absorption heat pump/low pressure mixing heaters. Unlike known approaches to modeling thermodynamic processes, the thermodynamic model of the developed method takes into account the influence of fluctuating deviations from the equilibrium state of thermodynamic parameters, which determine the criteria and conditions of interloop thermodynamic instability. Based on the analysis of the received criteria and conditions, it was established that the main cause of inter-circuit thermodynamic instability in the modernized system "steam turbine unit — a regeneration system with absorption heat pumps" is determined by the incompleteness (inertia) of heat-mass exchange and hydrodynamic processes during fluctuating deviations from the equilibrium state of thermodynamic parameters.  Prevention of the conditions for inter-loop thermodynamic instability in the modernized system "steam turbine unit — a regeneration system with absorption heat pumps" can be ensured by installing flow controllers in the wet steam supply circuits from the high-pressure cylinder of the turbine to the absorption heat pumps, and absorption heat pumps in mixing heaters low pressure to maintain a constant pressure in absorption heat pumps and low pressure mixing heaters. It is also necessary to consider that the modernization of the "steam turbine unit — a regeneration system with absorption heat pumps" system can affect the performance and conditions of inter-loop thermodynamic instability of "neighboring" systems. These issues determine the need for further analysis of the validity of the modernization of the "steam turbine unit — a regeneration system with absorption heat pumps" systems.
OBTAINING UNSATURATED HYDROCARBONS FROM COAL
Authors: Filimonenko Nina , Філімоненко Костянтин
Published: November 2023

The article is devoted to the improvement of the technology of obtaining Liquid Motor Fuels from Coal. Unsaturated hydrocarbons are the most important chemical raw material products and are widely used for producing polymers, alcohols and some other organic substances. The paper considers the proposition of technological process of obtaining Synthetic Fuel from Coal with a positive yield effect of the final product with high quality. It is possible to organize the production of Liquid Fuel is made of Coal conversion. The method of Coal conversion into Liquid Motor Fuel is its gasification and hydrogenation but this is not the only way out. The paper proposes the possibility of creating the small plants for the production of synthetic fuels and components of organic synthesis, which can be used of the capacity of metallurgical factories and shops of machine-building enterprises that are vacated areas. In modern society the need is growing to use alternative liquid fuel technologies, for example, by indirect liquefaction of coal. This is especially important for Ukraine during and after hostilities. Ukraine does not have sufficient oil and gas reserves, but it has coal deposits in the coal basin in the west of the country.

An important aspect that is insisted on is the achievement of energy independence. Given the historical traditions and the existing structure of energy deposits in Ukraine, one of the ways to solve this strategic task should be the development of the coal industry. In addition, the environmental component of each of these types of security can be an integrator that integrates them into the national security system. This will help to find their optimal ratio in this system. Moreover, today there is no doubt that any aspect of national security, whether economic, technological or defense, loses its meaning in the event of unfitness of the environment for human life and activity. An influential factor in increasing production of coal for processing in the western part of Ukraine is the maximum extraction of coal reserves and at the same time protection of subsoil.
SYSTEMATIC INFORMATION BASE OF ENERGY-EFFICIENT APPLICATIONS FOR AVIATION PETROL
Authors: Boichenko Sergii , Shkilniuk Iryna , Yakovlieva Anna , Dokshyna Sofiia , Kuberskyi Ihor , Sibilieva Olena
Published: November 2023

The additives in petrol was started to use in the first half of the twentieth century. In the late 1970s, a qualitative conceptual change in the development of this area of science and practice took place. Environmental pollution from harmful emissions led to the modification of petrol formulations and structural improvements of engines. The problem of improving the quality of gasoline and fuels for jet engines is usually solved in two ways: by developing high-quality new products and by efficient use of traditional ones.

The proposed work analyses the scientific literature on energy-efficient additives to aviation gasoline and, on this basis, creates a systematic information base, namely: classification of the range of additives to gasoline (by the following features: chemical, physical and biological stability enhancers; flash point modifiers; combustion modifiers; washing; dopes that promote efficient operation of fuels at low temperatures; friction modifiers; marking agents; anti-corrosion agents; safety enhancers; surface-active property modifiers) and the range of anti-detonation and environmental (anti-emission) additives in aviation petrols.

The following additives are manufactured and approved for use in Ukraine: poly-functional additives representing a complex mixture of manganese compounds and mixtures of paraffinic and naphthenic hydrocarbons (TU 30218597.001[in Ukrainian] "Poly-functional additives "Eco-Octane". Technical specifications"); iron-containing multifunctional additives "Standard"; there are also known developments of oxygenates based on methanol, ethanol and other alcohols, alcohol processing products, ethers and other oxygen-containing compounds.

The research is being carried out within the framework of the project "Development of a technology for the production of new environmentally friendly high-octane aviation gasoline from domestic raw materials" at the expense of the state budget in accordance with the Order of the Cabinet of Ministers of Ukraine of 12 August 2022 No. 713-r "Pro zatverdzhennia pereliku naukovo-tekhnichnykh (eksperymentalnykh) rozrobok v ramkakh vykonannia derzhavnoho zamovlennia na naivazhlyvishi naukovo-tekhnichni (eksperymentalni) rozrobky ta naukovo-tekhnichnu produktsiiu u 2022 rotsi" [in Ukrainian] (registration number 2020.01/0242).
PURIFICATION OF LIQUIDS IMPURITIES BY ELECTROMAGNETIC INFLUENCE
Authors: Terentiev Oleh , Kudilchak Mykhaylo , Jukova Natalia , Kudilchak Stepan
Published: November 2023

The importance of liquid purification leads to a decrease in the concentration of pollutants mainly in the stream during its use. This paper analyzes the relevance of document verification in accordance with existing legislation. An analysis of actual physical and chemical methods of liquid purification was carried out. The creation of a working chamber for the grouping of impurities for liquid purification is described. The result was achieved by electromagnetic influence on charged impurities. The scientific news of the study of the creation of a paraboloid of rotation of impurities has been created. The principle of operation of the cleaning system is shown on the example of the grouping of oil and water impurities. Research results show the possibility of liquid purification by controlling the trajectory of impurities. The work uses the Dini equation (Italian: Ulisse Dini) to describe the mathematical model of the grouping of impurities. A model of the trajectory of impurities in the LabVIEW shell was created. The possibility of further purification of the liquid by the method of electromagnetic grouping and subsequent removal of impurities from the flow was verified. The study takes place in the installation of inductance coils on the outer surface of the impurity grouping chamber. The trajectory of the movement of impurities in the magnetic field is determined. The electromagnetic influence on the charged impurities changes their trajectory and causes the impurities to move along the Larmor radius. When the magnitude of the electromagnetic field increases, the speed of movement of the impurity increases, and the radius of motion of the impurity decreases. It has been proven that impurities with a lower density are better concentrated in the center of the RKG. The parameters of the coils for creating an electromagnetic field are selected. The model of the rotation of oil impurities in the driver is reproduced on the model. The change in the specific conductivity of the water medium with increasing magnetic field induction was verified. At the first stage, we offer the construction of a stand for further purification of liquid by the method of electromagnetic grouping of impurities. Practical recommendations are given for achieving the efficiency of the electromagnetic method of liquid purification and its reuse.
ПРОБЛЕМИ ПОКРАЩЕННЯ ЕКОНОМІЧНОГО СТАНОВИЩА СЕЛЯН КИЇВСЬКОЇ ГУБЕРНІЇ В ПРАЦЯХ МІСЦЕВИХ КОМІТЕТІВ ОСОБЛИВОЇ НАРАДИ З ПОТРЕБ СІЛЬСЬКОГОСПОДАРСЬКОЇ ПРОМИСЛОВОСТІ (1902–1903 РР.)
Authors: Священко З. , Скрипник О.
Published: November 2023

Автори статті на основі аналізу «Праць місцевих комітетів» зробили спробу з’ясувати ключові аспекти діяльності Київського губернського комітету Особливої наради з потреб сільськогосподарської промисловості в контексті поліпшення економічного становища місцевих селян. Обґрунтовується, що члени місцевих комітетів Київської губ. планували покращити економічне становище місцевих селян за допомогою модернізації кредитно-фінансової, освітньої, виробничої сфери та реформи місцевого самоврядування. Ключовими аспектами діяльності Київського комітету з потреб сільськогосподарської промисловості в контексті поліпшення економічного становища місцевих селян стало кредитування сільських виробників, підвищення їх освітнього рівня, розвиток дрібної кустарної промисловості, вирішення транспортних проблем та створення виборних місцевих органів самоврядування — земств.

Ключові слова: селянство, аграрне питання, Особлива нарада з потреб сільськогосподарської промисловості, місцеві комітети, Київська губернія.
МИХАЙЛО МИХАЙЛОВИЧ ДЯЧЕНКО: ЖИТТЄВИЙ І ТВОРЧИЙ ШЛЯХ
Authors: Щербань А. , Соляник А.
Published: November 2023

М. М. Дяченко — український культурний діяч, художник, ілюстратор, педагог, бібліотекар, дослідник орнаментів та архітектури, що активно працював у 1908–1941 рр. Його життєвий шлях і творча спадщина донедавна були маловідомими. У статті вперше концептуально осмислено значну кількість збережених в українських архівах і бібліотеках рукописних та опублікованих документальних джерел, що характеризують його життєвий і творчий шлях. На основі зібраних матеріалів відтворено найповнішу нині біографію.

Ключові слова: українська біографістика, М. М. Дяченко, українська культура, музейна діяльність, мистецтво.
АНТИСЕМІТСЬКА ПРОПАГАНДА В ГАЗЕТІ «ВОЛИНЬ» ТА ЖУРНАЛІ «УКРАЇНСЬКИЙ ХЛІБОРОБ» РІВНЕНСЬКОГО ВИДАВНИЦТВА «ВОЛИНЬ»: ПОРІВНЯЛЬНИЙ АНАЛІЗ
Authors: Михальчук Р.
Published: November 2023

У статті проаналізовано нацистську пропаганду в роки Другої світової війни на прикладі видавництва «Волинь» (м. Рівне): на основі порівняльного аналізу висвітлено спільні та відмінні риси антисемітських публікацій, надрукованих у газеті «Волинь» та журналі «Український Хлібороб». Звернено увагу на умови та мотивацію авторів до написання антисемітських публікацій.

Ключові слова: «Волинь»; «Український Хлібороб»; преса; антисемітизм; Голокост.
НУРСУЛТАН НАЗАРБАЄВ: ВІД РАДЯНСЬКОГО ФУНКЦІОНЕРА ДО АРХІТЕКТОРА НЕЗАЛЕЖНОСТІ КАЗАХСТАНУ
Authors: Латиш Ю.
Published: November 2023

У статті розглянуто життєвий шлях першого Президента Республіки Казахстан Нурсултана Назарбаєва від народження до проголошення незалежності цієї держави. Метою статті є дослідити формування Н. Назарбаєва як політика й державного діяча, проаналізувати сторінки його трудової біографії, еволюцію поглядів на економічні, екологічні проблеми республіки, політику перебудови, стосунки з союзним центром, його роль у розпаді СРСР та появі незалежного Казахстану. Особливу увагу акцентовано на періоді його навчання в Україні та ставленні до України.

Було встановлено, що Н. Назарбаєв рішуче відстоював економічний суверенітет Казахстану, право республіки розпоряджатися своїми природними ресурсами, вести міжнародну економічну діяльність. При здійсненні реформ керувався принципом: «спочатку економіка, потім політика». Тому Президент Казахстану проводив досить обережну політику, не виступав за незалежність, підтримував ідею нового союзного договору, який на практиці зосереджував всю владу в руках республіканських еліт. Під час ключових моментів останнього періоду існування СРСР Н. Назарбаєв уникав безпосередньої участі в подіях: відмовився від пропозицій обійняти посади прем’єр-міністра, віце-президента СРСР, заступника генерального секретаря ЦК КПРС, не висловлював підтримки, але й не засуджував серпневий путч 1991 р., ухилився від підписання Біловезьких угод про припинення існування СРСР, натомість використовував послаблення центру після путчу для наповнення реальним змістом суверенітету Казахстану.

Наприкінці 1980-х — на початку 1990-х рр. політичні погляди лідера Казахстану стрімко еволюціонували: від підтримки перебудови як оновлення «радянського соціалізму» до ринкової економіки під жорстким державним контролем (за зразком «азійських тигрів»), від захисту «оновленої федерації» економічно суверенних республік до цілковитої незалежності. У грудні 1991 р. Н. Назарбаєв взяв на себе місію модератора цивілізованого розлучення колишніх радянських республік. Його політичний феномен базується на величезному життєвому досвіді, глибокому знанні економіки й промисловості країни, обережному ставленні до національного питання, тонкій інтуїції, здатності ухвалювати стратегічні рішення.

Ключові слова: Казахстан, біографія, реформи, модернізація, суверенітет, незалежність, президент.
Academician Glushkov’s legacy: Human capital in the field of cybernetics, computing, and informatics at Igor Sikorsky Kyiv Polytechnic Institute
Authors: Zgurovsky Michael
Published: November 2023

The role of academician Viktor Glushkov in the creation of scientific schools in the field of cybernetics, computing, and informatics at the Igor Sikorsky Kyiv Polytechnic Institute, which became a powerful national center for training specialists in this field, is considered. The significant influence of academician Hlushkov’s ideas on the formation of generations of scientists, who to this day continue to build a digital society in Ukraine and far beyond its borders, is shown.
Complexity of The Systems of Linear Restrictions over a Finite Field
Authors: Kurinnyi Oleh
Published: November 2023

This paper continues the results obtained in [1]. In the previous paper, we formulated the problem of the unknown vector recovering from linear dependencies with this vector, which act as constraints on it. The next step, after finding out some algebraic and combinatorial properties, is to give basic estimates of complexity for the main problem as well as for related problems. Such related problems can be obtained by fixing some parameters of the main problem or applying constraints on the number of restrictions in the system. Such an analysis makes possible to arrange the problem of recovering an unknown vector based on partial information into the general computational complexity framework in order to approach existing theoretical results to its solution. The obtained theoretical results can be used in algebraic cryptanalysis of stream ciphers and cryptosystems based on linear codes.
Cryptanalysis of the «Vershyna» digital signature algorithm
Authors: Fesenko Andrii , Lytvynenko Yuliia
Published: November 2023

The CRYSTALS-Dilithium digital signature algorithm, which was selected as the prototype of the new «Vershyna» digital signature algorithm, is analyzed in this paper. The characteristics of the National Digital Signature Standard Project and the construction of the «Vershyna» algorithm are also presented. During the analysis of the project, the predicted number of iterations that the algorithm must perform to create the correct signature was calculated. In addition, basic theoretical information about the structure of Fiat-Shamir with aborts and its security in quantum and classical models oracle models is also provided. We obtain our own results on the resistance of the «Vershyna» algorithm to the attack without the use of a message in classical and quantum oracle models. The resistance of the «Vershyna» algorithm to a key recovery attack is based on the assumption of the hardness of the MLWE~problem, and the resistance to existential signature forgery is based on the assumption of the hardness of the MSIS~problem. In this work, the expected level of hardness of SIS~and LWE~problems is calculated, to which there are reductions from MSIS~and MLWE~problems.
The Best Scenario of Cyber Attack Selecting on the Information and Communication System Based on the Logical and Probabilistic Method
Authors: Alekseichuk Lesia , Novikov Oleksii , Rodionov Andrii , Yakobchuk Dmytro
Published: November 2023

Abstract

The task of analyzing and selecting the best scenario of a cyberattack on information and communication system is considered as a component of the task of analyzing systems security. A method and corresponding algorithm for finding the best scenario of an attack on information and communication system using a logical and probabilistic model is proposed. The model describes the development of adverse events that arise in the information and communication system from the implementation of possible attacks on the security system from cyberspace. Analysis of cyber attack scenarios allows predicting the development of possible adverse cyber security events from the implementation of multiple threats to the system. The developed method and corresponding algorithm for analyzing attack scenarios can be used to analyze the security of information and communication systems, as well as in automation systems for designing information security systems or designing attacks on such systems.
4-Hydroxynaphtho[1,8-de][1,2]oxazine in the Synthesis of 1,2,8-Trisubstituted Naphthalenes. Novel Isoxazole 2-oxide to Nitrile oxide Isomerization
Authors: Gerontitis Ioannis E. , Tsoungas Petros G. , Varvounis George
Published: November 2023

Naphtho[1,8-de][1,2]oxazin-4-ol and its acyl or benzyl derivatives ring open to various 2,8-dihydroxy-1-naphthonitriles, that undergo methylation, reduction, demethylation and debenzylation reactions, to afford the target compound (E)-2-hydroxy-8-methoxy-1-naphthaldehyde. The best overall yield of the latter was 28.7%. This compound was converted to its corresponding (E)-2-hydroxy-8-methoxy-1-naphthaldehyde ox-ime, which was oxidatively o-cyclized with phenyliodine(III) diacetate (PIDA) to 9-methoxynaphtho[1,2-d]isoxazole 2-oxide. The latter in deuterated DMSO, at room temperature, rearranged to its isomer to 2-hydroxy-8-methoxy(naphthalen-1-yl)nitrile oxide. The isomeriza-tion was detected by a time-course plot 1H NMR spectroscopy and further identified from its13C NMR and HRMS spectra. The nitrile oxide was stable in (non)deuterated DMSO for at least 18 hours. A 3,4-bis(2-hydroxy-8-methoxynaphthalen-1-yl)-1,2,5-oxadiazole 2-oxide as a dimeriza-tion product or an isocyanate as a rearrangement isomer were both ruled out, the former by the absence of the relevant molecular ion in its HRMS spectrum while the latter by 1,3-dipolar cy-cloaddition reactions with various dipolarophiles that gave substituted isoxazoles, thus con-firming the nitrile oxide structure.
A Deep Survey of Fish Health for the Recognition of Useful Biomarkers to Monitor Water Pollution
Authors: Orso Graziella , Imperatore Roberta , Coccia Elena , Rinaldi Gianluca , Cicchella Domenico , Paolucci Marina
Published: November 2023

The aim of the present study, was to evaluate the wild freshwater fish health status using a vast array of biomarkers as predictive factor of pollutant exposure. European eel (Anguilla anguilla) and Brown trout (Salmo trutta fario), resident in rivers with different degree of pollution in the South of Italy (Picentino river with good environmental quality and Tusciano river with low environmental quality), were examined using biometric parameters, histopathological and immunohistochemical biomarkers to evaluate the health status and a possible correlation with the water quality. Several alterations identified in the liver positively correlated with water and soil pollutants were: hemorrhage (P≤0.05), cytoplasmic vacuolization (P≤ 0.01), hemosiderosis (P≤0.05), irregular arrangement of hepatocytes (P≤ 0.01), lipid accumulation (P≤0.05), necrosis (P≤ 0.01), cellular hyperplasia (P≤0.05), leukocyte infiltration (P≤ 0.01) and melanomacrophages centers (MMC) (P≤ 0.01). In the spleen, only hemosiderosis correlated with water and soil pollutants (P≤ 0.05). The inflammatory biomarker tumor necrosis factor α (TNFα) and ciclooxigenase 2 (COX2) responded to the environmental pollution, as well as the oxidative stress biomarkers superoxide dismutase (SOD) and 8-Hydroxy-2'-deoxyguanosine (8-OHdG). Erythrocytic nuclear abnormalities and erythrocytic cellular abnormalities were found significantly higher in the blood of both Europen eel (P<0.0001) and Brown trout (P <0.001) in the Tusciano river with respect to the Picentino river. Taken together, these results outline the need to increase the number of suitable biomarkers to assess fish health and reinforce the importance to employ additional biomarkers in biomonitoring programs which can be applied to evaluate the water quality and environmental risk assessment around the world
Determination and Quantification of Acetaldehyde, Acetone and Methanol in Hand Sanitizes Using Headspace GC-MS: Effect of Storage Time and Temperature
Authors: Theruvathu Jacob Abraham , To Chessa
Published: November 2023

Accurate determination of the concentration of alcohols and their metabolites is important in forensics and in several life science areas. A new method has been developed to quantify alcohols and their oxidative products using a headspace gas chromatography- mass spectrometer and isotope-labelled internal standards. This work demonstrates the application of this method, specifically in quantifying the concentration of oxidative products of alcohol and other minor alcohols found in hand sanitizers, which have become an essential household item since the COVID-19 pandemic. Apart from the major component, the minor alcohols found in hand sanitizers include methanol, isopropanol, and n-propanol. In ethanol-based hand sanitizers, a significant amount of acetaldehyde was observed as an oxidation product, while in isopropanol-based hand sanitizers, acetone was observed. The concentration of acetaldehyde in ethanol-based hand sanitizers significantly increased with storage time and temperature, whereas no such increase of acetone concentration was observed in isopropanol-based hand sanitizers with storage time and temperature.
Strength Development of Metakaolin-Based Alkali-Activated Cement
Authors: Lou Baowen , Vrålstad Torbjørn
Published: November 2023

Alkali-activated materials, sometimes called geopolymers, can be used as alternative cementitious materials to conventional Portland cement. There is a significant current interest in these materials due to their low CO2 footprint. Typical applications of alkali-activated materials are within civil engineering, however, potential applications as well cementing material within oil & gas are also being studied with emerging interest. This paper presents a systematic study of compressive strength development from 1 to 28 days for metakaolin-based alkali-activated cement. The results show that compressive strength is highly dependent upon the initial Si/Al ratio in the mix design, as well as the concentration of the activator solution. Furthermore, due to the relatively low initial reactivity of the used metakaolin material, different types of co-binders were included in the slurry composition to improve early strength development. The two different co-binders tested were another, more reactive metakaolin material and Blast Furnace Slag (GGBFS). It was found that both these co-binders performed as intended, by ensuring early strength development via precipitation of K-A-S-H and C-A-S-H gels, respectively, and also by enabling subsequent strength development due to improved dissolution of the low-reactive metakaolin.