bluuebunny/crossref_metadata_2025 huggingface dataset:
Comparative assessment of electricity supply costs from different sources in baseload and regulated modes
Authors:   Thermal Energy Technology Institute of NAS of Ukraine, 19, Andriivska St., Kyiv, 04070, Ukraine, Chernyavskyy Mykola ,   General Energy Institute of NAS of Ukraine, 172, Antonovycha St., Kyiv, 03150, Ukraine, Dunayevska Nataliya ,   Thermal Energy Technology Institute of NAS of Ukraine, 19, Andriivska St., Kyiv, 04070, Ukraine, Novoseltsev Oleksandr ,   eneral Energy Institute of NAS of Ukraine, 172, Antonovycha St., Kyiv, 03150, Ukraine, Eutukhova Tatiana
Published: May 2024

The paper analyses the role and the technical and economic indicators of different electricity generation sources in the transition to "carbon-free" energy. A simplified method is proposed for estimating the minimally justified price of selling electricity from thermal power plants (TPPs), renewable energy sources (RES) and new maneuverable natural gas capacities is proposed. It is shown that the price of electricity from RES and new maneuverable capacity has a decisive influence on the amount and fixed period of return on investment in construction, as well as on the capacity utilization factor (CUF), which depends on the mode of operation of the power plants. Comparative estimates of the CUF of different electricity generation sources are presented. It has been shown that the cost of electricity from RES, new peak and maneuverable capacity is significantly higher than the cost of electricity from thermal power plants during the payback period. It is proved that at present the reserve for the reduction of the power shortage and the load regulation is available only in the thermal generation, and the conditions for the possibility of its effective use are the maintenance of the proper technical condition of the pulverized coal boiler units and the sufficient fuel base. To ensure acceptable electricity prices, RES and new control capacity should be phased in, using existing TPPs and CHPs to balance both the weighted average price and the regulation of power system load modes. Keywords: thermal power plants, coal, natural gas, gas turbine, steam-gas, gas-piston power plants, renewable energy sources, cost of electricity supply.
Quantitative assessment of the network structures functional efficiency by analyzing of sensitivity optimization model to external influences
Authors:   Institute of Information Registration Problems of NAS of Ukraine, 2, M. Shpaka St., Kyiv, 03113, Ukraine, Kuzmychov Anatolii
Published: May 2024

The real network organizational structure is constantly under the influence of external influences, which can cause unexpected consequences due to the cascading spread of relevant disturbances directed at critically important parameters. Parametric sensitivity analysis is the latest computational procedure, the results of which provide the researcher with an idea and quantitative assessment of the appropriate response of the structure in the form of an analytical platform as a composition and interaction of scenario analysis, cascade process development and optimization modeling technology. The main task is timely adaptation to expected changes in business analytics, oriented to optimal resources distribution. The generalized minimum cost problem is a typical example of widespread problems of optimal distribution and use of limited, in particular, energy resources, of any nature and purpose, using the scientific management and analysis of decisions, in its network model attention is paid to the potentials of nodes. The maximum flow problem is an example of the active and effective application of methods and models of flows optimization, where the processes and objects used a network organization, the energy systems and complexes investigated, where arc parameters are critical in its model. In the article, for these classic optimization problems, mathematical and spreadsheet models were built on concrete examples. Direct and dual mathematical programming problems were solved, the following stages were carried out - the organization of a computer experiment and the construction of an analytical platform for evaluating the behavior of the network structure under the influence of external influences and disturbances as their consequences. To take into account the specific conditions of real objects with a network structure at the stage of modification, the model supplemented with appropriate restrictions and correction of input data sets. The obtained results should be useful for planning and management personnel and top-management for discussion and decision-making regarding, for example, the optimal placement of energy equipment, the weighted distribution of energy flows in the "source-sink" system or the appointment of executors for work, automated project management using project networks, etc. Keywords: optimization modeling, maximum network flow, minimum cost flows, network organizational structures, decision making, spreadsheet modeling and analytics.
Comparative analysis of modern technologies of additive production
Authors:   General Energy Institute of NAS of Ukraine, 172, Antonovycha St., Kyiv, 03150, Ukraine, Romanenko Vladyslav , Nazarenko Oleh ,   General Energy Institute of NAS of Ukraine, 172, Antonovycha St., Kyiv, 03150, Ukraine
Published: May 2024

In today's conditions, 3D printing is used to create unique models, prototypes, and equipment necessary for conducting experiments and studying various phenomena and processes, for the rapid prototyping of various parts and devices in scientific and engineering research. 3D printing technologies are actively used to create individual medical implants, prostheses, and organ models for training and planning operations, which significantly improves the quality of medical care. In the aerospace and automotive industries, additive manufacturing is used to create lightweight and durable parts helping to reduce weight and improve vehicle efficiency. The use of additive manufacturing methods, technologies, and tools allows you to check and test designs and concepts before mass production. In this work, a detailed analysis of various existing 3D printers is carried out depending on the tasks, and modern technologies of additive manufacturing are investigated depending on the set goals and scientific and applied tasks. Such technologies include Fused Deposition Modeling, Stereolithography, Selective Laser Sintering, Direct Metal Laser Sintering, and Digital Light Processing. In the work, a comparative analysis of these technologies was carried out according to various criteria, such as principle of operation, materials, resolution, surface finish, accuracy, speed, strength, application, cost, complexity of parts, and post-processing. For each technology, the advantages and disadvantages of its use are determined depending on the goals and objectives. It should be noted that some materials may not be suitable for printing complex parts or require additional support during the printing process. This can lead to complexity in the processing of products and increase the time and costs of printing. Improper selection of materials for 3D printing can be harmful to the environment or human health when used incorrectly. For example, some plastic materials may emit toxic elements or have low biodegradability. Also, using excess expensive material unnecessarily can increase the cost of the project. Keywords: additive manufacturing, 3D printing, additive manufacturing technologies, Fused Deposition Modeling, Stereolithography, Selective Laser Sintering, Direct Metal Laser Sintering, Digital Light Processing.
World experience of legislative regulation for Lithium-ion electric vehicle batteries considering their second-life application in power sector
Authors:   General Energy Institute of NAS of Ukraine, 172, Antonovycha St., Kyiv, 03150, Ukraine, Kostenko Ganna , Zaporozhets Artur ,   General Energy Institute of NAS of Ukraine, 172, Antonovycha St., Kyiv, 03150, Ukraine,   State Institution “Center for evaluation of activity of research institutions and scientific support of regional development of Ukraine of NAS of Ukraine”, 54, Volodymyrska St., Kyiv, 01030, Ukraine
Published: May 2024

Understanding and incorporating global regulatory experiences and standards related to battery management is of greatest importance, particularly when considering the rapid evolution of the electric vehicle (EV) market and its implications for energy storage and sustainability. This is especially relevant for Ukraine, where the burgeoning secondary market for EVs and a keen interest in renewable energy sources underscore the need for proactive policy-making and standardization to address the challenges of battery second life and recycling. This article delves into the role of Electric Vehicle Lithium-Ion batteries within the ambit of the circular economy, underscoring the significance of legislative frameworks across the globe with a particular focus on European initiatives in light of Ukraine's EU integration ambitions. This encompasses extending battery life through recycling and repurposing, thereby ensuring both economic viability and minimal environmental footprint. The narrative outlines the varied legislative landscapes internationally, noting the differences in strategies from Asia's technological and safety emphasis to Europe's robust regulatory directives aimed at battery lifecycle management. In Europe, the drive towards sustainable battery utilization is marked by comprehensive policies like the EU Battery Directive and the emerging Regulation on Batteries and Waste Batteries, which set forth ambitious recycling targets and introduce innovative concepts like the battery passport. Drawing from this global overview, the article posits a set of recommendations for Ukraine, suggesting the development of extensive battery management legislation, adoption of European standards to smooth the path towards EU membership, investment in recycling infrastructures, fostering of public-private partnerships, and public awareness initiatives. These recommendations are designed to elevate Ukraine's position in the sustainability, promoting environmental stewardship and economic competitiveness. The growing importance of secondary lithium-ion batteries for electric vehicles in supporting and harmonizing renewable energy sources is emphasized, and accordingly, the need for adequate legislation and standardization to support a closed-loop economy. Keywords: Lithium-Ion Batteries, Second-Life Application, EV Battery Life Cycle, Circular Economy, Repurpose, Reuse, Recycling, Standards, Regulation, Legislation.
Capital financiero-inmobiliario y urbanización periférica: formación de rentas especulativas en el macroproyecto Ciudad Verde
Authors: Guerrero Hurtado Alejandro
Published: May 2024

El artículo analiza una de las modalidades de urbanización periférica agenciadas por el capital financiero-inmobiliario en la sabana de Bogotá: el macroproyecto de interés social nacional Ciudad Verde. Tomando como base el estudio de la variación de precios de la vivienda nueva en cada etapa de desarrollo del macroproyecto, se busca demostrar la consolidación paulatina de un esquema de especulación inductiva para la formación de rentas urbanas de magnitud creciente entre 2010 y 2020. Para esto, en la primera parte se considera la formación histórica del capital financiero-inmobiliario en Colombia, aportando elementos para su delimitación conceptual. En la segunda parte, se aborda el proceso de consolidación urbanística de Ciudad Verde por etapas y se subraya el papel del Estado en la configuración de rentas urbanas. En la última parte, se presenta una síntesis teórica en dos momentos: la imbricación aditiva de la estructura de rentas en el macroproyecto, que explica el auge de los precios de la vivienda por encima de la inflación y, en segundo lugar, la distribución espacial de dicha estructura, que ofrece pistas sobre las próximas fases de expansión de la frontera urbana en el área de estudio.
Rāġib, Māykil Ḥilmiī [Ragheb, Mickel Helmy], aṯ-Ṯīʾuṭūkīyāt al-ḥabašīya (Widdāsī Māryām) fī ḍawʾ ʾaṣlihā al-qibṭī wa-turāṯ at-tarānīm aš-šarqīya al-ʾuḫrā (‘The Abyssinian Theotokia (Widdāsī Māryām) in View of Their Coptic Origin and the Heritage of the Other Oriental Hymns’)
Authors: Reule Dorothea
Published: May 2024

Book review.
Editorial
Authors: Bausi Alessandro
Published: May 2024

Editorial
Influence of Abutments Surface (machined vs. laser-microgrooved) in Soft-tissue Response During One Year of Function: Clinical and Biochemical Outcomes of a RCT with Split-Mouth Design
Authors: Guarnieri Renzo , Zanza Alessio , Reda Rodolfo , Pagnoni Francesco , Abbagnale Rosemary , Di Nardo Dario , Testarelli Luca
Published: May 2024

The purpose of this study was to evaluate peri-implant soft tissue response by assessing IL-6, IL-1b and MMP-8 levels in peri-implant crevicular fluid (PICF) around machined vs. laser-microgrooved implants/healing/prosthetic abutments during 1 year of function. Twenty-four patients each received 2 one-stage implants in a split mouth design on the same jaw. In each patient, one implant, one immediate healing, and one prosthetic abutment with a machined surface (M group), and one implant, one immediate healing abutment and one prosthetic abutment with a laser-microgrooved surface (LMS group) were used. PICF sampling, pocket probing depths (PPD) and bleeding on probing (BOP) were assessed at 1, 3, and 12 months. IL-6, IL-1b and MMP-8 levels were determined by specific enzyme-linked immunosorbent assay systems (ELISA). Repeated measure ANOVA was used to run comparisons with groups and between groups months at 1, 3, and 12 months. At 3 and 12 months, the LMS group showed significantly lower PD, BOP and IL-6, IL-1β and MMP-8 levels than the M group (P<.05). This study suggests the presence of more remodeling and/or inflammatory phenomena around implants/abutments with a machined surface than around implants/abutments with a laser-microgrooved surface.
Die Leskys
Authors: Seebacher Felicitas
Published: May 2024

The classical philologist Albin Lesky and the physician Erna Lesky, née Klingenstein, embodied the successful "dual-career couple" internationally. Their academic careers were influenced by various political systems, structures and functioning. To what extent were they, representatives of their generation, willing to use individual room for manoeuvring to achieve success in the scientific community, and how far did they transgress the ethical boundaries of science to gain influence and power? Albin Lesky, appointed prorector of the University in Innsbruck in 1942, and Erna Lesky, medical director of a home of the NSV relief organisation "Mother and Child", were loyal members of the NSDAP. After the Nazi Party was banned, they used the networks of the former members to further their academic careers. Their joint silence about and suppression of their Nazi past ensured their success after 1945. Albin Lesky, appointed to the Institute of Classical Philology at the University of Vienna in 1949, was committed to humanistic education as an international expert on classical Greek Literature and held key academic policy positions at both the University of Vienna and the Austrian Academy of Sciences. Erna Lesky qualified as a lecturer in the history of medicine in 1957 and in 1966 became the first woman to be appointed professor at the Medical Faculty of the University of Vienna. Under her leadership, the Institute for the History of Medicine became a "Centre of Excellence". In 1973 she was elected the first female honorary member of the Austrian Academy of Sciences. The social-democratic educational reforms of 1975 marked the final break with the authoritarian university system that had lastingly shaped Albin and Erna Lesky like many scientists of their time.
Deklarasi Anies - Muhaimin dan Konflik Ideologi NU Versus PKS di Pentas Politik Nasional
Authors: Dalle Muhammad
Published: May 2024

The conflict between NU and PKS is an ideological battle rooted in political competition, notably surrounding the 2024 presidential election. Escalating tensions involve Nasdem's support for Anies Baswedan and PKS's selection of Muhaimin Iskandar as vice-presidential candidate. NU figures derisively depict the Anies-Muhaimin pair, backed by PKS, as Wahhabi groups associated with the Muslim Brotherhood. Utilizing power cube theory and Gramsci's hegemony, this research analyzes the conflict, revealing internal disputes within PKB across various power layers. The conflict extends nationally and internationally, involving key figures and transnational issues. However, attacks on the Anies-Muhaimin coalition rely on outdated narratives. NU's actions, stemming from Gus Dur's legacy, are influenced by political factors and personal interests. Hidden conflicts between NU and Muhammadiyah are also pivotal. The author suggests NU cadre unity, resolving longstanding conflicts, and Islamic party unity to confront perceived nepotism, secularism, and oligarchic favoritism in the regime.
Rekonsiliasi Arab Saudi dan Iran dalam Perspektif Konstruktivisme
Authors: Musofa Ahmad Zainal
Published: May 2024

Abstract
This article describes the reconciliation between Saudi Arabia and Iran that recently occurred. This study aims to explore more deeply related to how the relationship between Saudi Arabia and Iran is post-reconciliation. Then, revealing China's interests as an actor mediating Saudi-Iran. The writer uses constructivism theory as a tool to analyze the discussion. Then the author uses a qualitative type method with a literature study approach. This research concludes that reconciliation between Saudi Arabia and Iran through Chinese mediation succeeded in reuniting the two countries which were often involved in tensions for a long time. This reconciliation also has an impact on the political constellation in the Middle East where countries in alliance with Saudi and Iran will be softer towards countries that are considered enemies. Then, China has an interest in increasing its economic sector in the Middle East such as the BRI policy, especially with Saudi-Iran. Then China expects maximum support from Middle East and North Africa (MENA) countries in international forums. Furthermore, China seeks to compete with the United States as a threat in the field of security through its presence in the Middle East as a party capable of giving hope for peace..
Perspektif Patronase Edward Aspinal dalam Proses Pemangan Busyro Karim Sebagai Bupati Dua Periode di Kabupaten Sumenep
Authors: Roiyan Ahlur
Published: May 2024

Penelitian ini dilakukan untuk mengetahui terkait pola kepemimpinan yang dibangun oleh Busyro Karim sehingga dapat memenangkan Pikada dua periode di kabupaten Sumenep, Madura. Selain itu, penelitian ini juga membuktikan bahwa terdapat relasi kuasa yang terbentuk pada masyarakat, bail secara umum maupun elit-elit masyarakat yang berada dalam pemerintahan. Di samping itu juga terdapat hubungan bersfiat patron-klien saat proses pemilihan Bupati berlangsung. Berdasarkan permasalahan yang diangkat, peneliti menggunakan teori patronase sebagai pisau bedah analisis penelitian. Penelitian ini bersifat deskriptif yang diambil dari beberapa data sebagai bahan untuk menganalisis data. Data tersebut diambil melalui wawancara dan kajian Pustaka yang terdapat di dalam metode kualitatif. Hasil penelitian ditemukan adanya relasi kuasa yang terbentuk pada proses pemilihan Bustro Karim sebagai Bupati Dua Periode, di samping itu juga terdapat hubungan patronase dalam proses pemilihan Bupati.
Dynamics of Timely Vaccination Among Tender-Age Infants in two Subjects of Russian Federation with the Lowest Immunization Coverage in 2020: Serial Cross-Sectional Study
Authors: Mukozheva Radima A. , Kulichenko Tatyana V. , Semavina Liudmila Yu. , Bosikova Vera I. , Uarova Alexandra V.
Published: May 2024

Background. It was revealed in 2020 that immunization of children in decreed times in several subjects of Russian Federation was below the standard level. Therefore, monitoring of timely vaccination in children of these regions was relevant. Objective. The aim of the study is to evaluate changes in the timeliness of vaccination in children of two subjects of Russian Federation with low immunization rates according to 2020 data. Methods. Immunization of children born in 2015–2017 and 2020–2022 were studied according to the form of federal statistical monitoring (FFSM) No. 6 and vaccination record cards (form No. 063/y) obtained from children's polyclinics of the Republic of Bashkortostan (two in 2020 and three in 2023) and the Republic of Sakha (Yakutia) (two in 2020 and four in 2023). The vaccination timeliness among children against infections from the national immunization schedule (NIS) list was determined. The timeliness of vaccination was evaluated by the proportion of children who received the required number of vaccine doses against each of the infection from the NIS list by the decreed age among all persons of the decreed age. Results. Data from 998 records was analyzed. The increase in timely vaccination against all vaccine-controlled infections in children was revealed. The proportion of children vaccinated according to the NIS has increased by 1.5–4 times. Timely vaccination of 95% children in the decreed age (by FFSM No. 6) was achieved in the Republic of Sakha (Yakutia) against tuberculosis, hepatitis B, measles, rubella, and mumps, and in the Republic of Bashkortostan against measles, rubella, and mumps. The increase in the multivalent vaccines’ usage and simultaneous administration of several vaccines has been discovered. Conclusion. Monitoring the level of documented immunization and timely vaccination in children allows effectively control routine immunization quality. Implementation of multivalent vaccines and simultaneous administration of several vaccines in routine immunization provides radical change in the vaccination rate in pediatric population.
Вплив правового режиму воєнного стану на забезпечення права на таємницю кореспонденції в Україні
Authors:   Kyiv National Economic University named after Vadym Hetman, Левченко Аліна
Published: May 2024

The article is devoted to the study of the influence of the legal regime of martial law on ensuring the constitutional right to secrecy of correspondence, telephone conversations, telegraph and other correspondence. Martial law and restrictions on human rights and freedoms are not common in any country in the world. However, today, in connection with the imposition of martial law in Ukraine due to Russia’s armed aggression against Ukraine, this topic is quite relevant. The author investigates the essence of restrictions on human rights and freedoms in martial law, legal grounds, models, conditions and principles of restrictions on human rights and freedoms in martial law, in particular the right to secrecy of correspondence. The foreign experience of martial law in the country and restrictions on the right to secrecy of correspondence and other human rights and freedoms under such conditions are considered. The mechanism of martial law in Ukraine or in some of its territories is analyzed, its shortcomings are identified, which can significantly affect human rights and freedoms in martial law. A comparative description of the Ukrainian and foreign mechanisms of martial law and restrictions on human rights under martial law has been made. In order to avoid unjustified or illegal restriction of the human right to secrecy of correspondence in wartime, substantiated recommendations are provided to eliminate the shortcomings of the mechanism of martial law in Ukraine.
AMBIENTE DA PRÁTICA PROFISSIONAL DA ENFERMAGEM EM HOSPITAL UNIVERSITÁRIO FRENTE À COVID-19
Authors: Paula Andresa Gomes de , Gasparino Renata Cristina , Bohomol Elena
Published: May 2024

RESUMO Objetivo: avaliar o ambiente da prática profissional da enfermagem durante a pandemia da Covid-19. Método: estudo transversal, conduzido em uma amostra constituída pela equipe de enfermagem que atuava em um hospital universitário. Utilizou-se a escala Practice Environment Scale (versão brasileira) com 24 itens distribuídos em cinco subescalas. As análises foram realizadas no Statistical Package for the Social Sciences, versão 25, e aplicou-se significância estatística de 5% (p≤0,05). A consistência interna do instrumento foi avaliada pelo alfa de Cronbach. Resultados: participaram da pesquisa 243 profissionais, sendo 62,1% técnicos e auxiliares de enfermagem e 37,9% enfermeiros. A média do escore para a Practice Environment Scale foi de 2,58 (desvio-padrão = 0,69) e os participantes consideraram três das cinco subescalas favoráveis: “Fundamentos de enfermagem voltados para a qualidade do cuidado” (média 2,58 e dp ± 0,73); “Habilidade, liderança e suporte dos coordenadores/supervisores de enfermagem aos enfermeiros/equipe de enfermagem” (média 2,74 e dp ± 0,82) e “Relações colegiais entre enfermeiros e médicos” (média 2,78 e dp ± 0,76). Os profissionais capacitados para o cuidado dos pacientes com COVID-19 tiveram percepção mais favorável em relação àqueles que não o foram. Conclusão: o ambiente de trabalho da enfermagem foi considerado misto, na pandemia, portanto, necessita de melhorias para que as condições de trabalho da enfermagem sejam as mais adequadas possíveis.
EFEITO DO PROGRAMA DE TRANSIÇÃO NO AUTOCUIDADO DE PACIENTES COM INSUFICIÊNCIA CARDÍACA: ENSAIO CLÍNICO RANDOMIZADO
Authors: Tinoco Juliana de Melo Vellozo Pereira , Padua Bruna Lins Rocha de , Souza Beatriz Paiva e Silva de , Guimarães Tereza Cristina Felippe , Mesquita Evandro Tinoco , Cavalcanti Ana Carla Dantas
Published: May 2024

RESUMO Objetivo: analisar o efeito do cuidado de transição no autocuidado, qualidade de vida e conhecimento da doença de pacientes hospitalizados com insuficiência cardíaca. Método: ensaio clínico randomizado cego com 74 pacientes com insuficiência cardíaca em dois hospitais quaternários do Rio de Janeiro-RJ, entre dezembro de 2017 e fevereiro de 2020. O grupo intervenção recebeu cuidados de transição com gerenciamento educativo por enfermeira, à beira do leito, desde a admissão até a alta hospitalar e consulta telefônica por 30 dias após a alta. O grupo controle recebeu acompanhamento usual. Os desfechos primários incluíram habilidades de manutenção, manejo e confiança no autocuidado, e os desfechos secundários, qualidade de vida e conhecimento da doença. Ambos foram avaliados por questionários validados para uso no Brasil. Os dados foram analisados pelo ANOVA de medidas repetidas. Resultados: o grupo intervenção apresentou maiores escores para manutenção (74,3 vs44,2; p<0,001) e confiança do autocuidado (79,3 vs56,4; p<0,001) e conhecimento da doença (41,3 vs27,5; p<0,001) e menores escores de qualidade de vida (42,1 vs64,5; p<0,001) em 30 dias após a alta. Conclusão: o cuidado de transição foi efetivo na melhora da qualidade de vida, conhecimento da doença, manutenção e confiança no autocuidado. Estudo registrado no Registro Brasileiro de Ensaios Clínicos, sob o número RBR-2dpc6b.
Os efeitos dos programas de formação de professores Obeduc e Pibid no desenvolvimento profissional dos docentes do Ensino Superior
Authors: Oliveri Andressa Maris Rezende , Jardilino José Rubens Lima
Published: May 2024

Resumo O objetivo deste artigo é discutir os efeitos da experiência vivenciada pelos docentes do Ensino Superior nos programas Obeduc e Pibid, implementados pela Ufop e pelo IFMG-campus Ouro Preto, em seu desenvolvimento profissional. Para a coleta dos dados foi utilizada a entrevista semiestruturada. Dentre os resultados, destaca-se que os programas não visam o desenvolvimento profissional dos professores do Ensino Superior. Mas constituem-se em espaços de formação para estes profissionais, pois trazem elementos para a reflexão sobre teoria e prática, a proposição temas de pesquisa, e a aproximação entre escola e universidade, o que colabora para a constituição de sua identidade docente.
A TRI-BAND AND AFFORDABLE MICROSTRIP PATCH ANTENNA FOR WIRELESS COMMUNICATIONS
Authors: Asileti Suneel Kumar , Srikanth Mocherla Venkata , Nagasrisha Bhattiprolu , Bhargavi Rebba
Published: May 2024

This paper investigates the computational and experimental evaluation of a wireless communications tri-band, low-cost microstrip patch antenna (MPA). High-frequency structure simulator (HFSS), which is based on the frequency domain finite element method (FEM) simulation technology, is used
to perform the numerical analysis of the proposed antenna. The recommended antenna, which was created and put together on a cheap FR-4 substrate, performs as predicted by simulation and measurement, which is used to support its effectiveness. The proposed antenna resonates in frequency bands of 13.4 GHz, 22.9 GHz, and 26.3 GHz. The antenna's maximum gain values for these resonant frequencies
are 5.66 dBi, 5.75 dBi, and 5.52 dBi, respectively. Nearly omnidirectional patterns offered by the proposed antenna make it ideal for wireless communication devices.
Molecular phylogeny, classification, and description of new species of Australian Nuridius Sloane, 1890 (Carabidae: Pterostichini)
Authors:   Queensland Museum, Will Kipling , Monteith Geoff
Published: May 2024

The genus Nuridius Sloane is revised and expanded to 10 species including its type species Nuridius fortis Sloane, 1890, three newly described species: Nuridius frickei sp. nov., type locality Peases Lookout, Eungella National Park, QLD, Nuridius pluto sp. nov., type locality Jimna State Forest, QLD, and Nuridius darlingtoni sp. nov., type locality Bulburin National Park, QLD, and six species previously included in Nurus Motschulsky that are here combined in Nuridius: Nuridius curtus (Chaudoir, 1865), Nuridius grandis Sloane, 1910, Nuridius nox (Darlington, 1961), Nuridius medius (Darlington, 1961), Nuridius rex (Darlington, 1961), and Nuridius niger (Chaudoir, 1878). Pachymelas Tschitschérine, 1902 is considered a junior synonym of Nuridius. Bayesian analyses of a combined matrix and partitioned matrices of partial sequences from three loci (28S, COI and CAD) found support for Nuridius as a clade separate from Nurus. The comparative study of morphological features allows for recognition of the 10 species and an identification key is provided. Images of habitus and key external features, along with the aedeagus of each species are provided. All species distributions are mapped, and biogeographical implications discussed. Short notes are given on burrow-making and egg deposition into formed, two-part soil capsules by species of both Nurus and Nuridius. Conservation issues are briefly discussed.
Development of Small Business in Rural Areas: Socio-Economic Aspect
Authors: Yakimova Lyudmila , Streltsova Alvina
Published: May 2024

The article deals with the development of small business forms and the main ways of obtaining state support in the agricultural sector. Small agricultural enterprises play an important role in providing the population with affordable food, are the basis for the preservation of the rural population and rural areas. The purpose of the work is to analyze possible directions of state support for the development of small and medium-sized agricultural businesses in the region. To achieve the research goal several general scientific and special methods: deduction, system analysis and statistical and economic methods of analysis were used. The conducted research made it possible to give a detailed assessment of the agricultural produced goods and analyze the existing ways of obtaining state support for small agricultural businesses. State support for farmers and agricultural cooperatives is implemented in Krasnoyarsk Territory, there is a state program: «Development of agriculture and regulation of markets for agricultural products, raw materials and food», the national project «Small and medium-sized entrepreneurship and support of individual entrepreneurial initiative», the regional project «Creation of the support system of farmers and development of rural cooperation». State support of small agricultural business is one of the key development tools. Under this programme, the State provides financial assistance, training, counselling and other support to small agrarian enterprises. In general, state support for small agrarian businesses in the Krasnoyarsk Territory is an important tool for the development of the region. Thanks to this approach, many small enterprises have been able to expand their business and improve the quality of life of their employees.
Digital Transformation and Assessment of the Russian Federation Region Public Administration System’s “Digital Maturity”
Authors: Anufrieva Alena , Krasnodubskaya Kristina
Published: May 2024

The article presents an analysis of digital transformation process in Russian Federation public administration system at the present stage. Particular attention is paid to “digital maturity” assessment as a key target indicator of “digital space” formation and development of information and communication technologies within the national economy. The author systematize the transformation stages with the allocation of organizational, legal, infrastructural changes and the main tools of digitalization. The methodology for calculating the target indicators of the national development goal digital transformation of the Russian Federation Ministry of Digital Development, Communications and Mass Communications and the methodology for calculating indicators for evaluating the effectiveness of Russian regions senior officials and the activities of executive authorities are considered. It is proposed to improve the methodology for assessing “digital maturity” in terms of assessing the public administration system readiness for digital transformation, taking into account the regional specifics of these processes. It is proved that in order to ensure an objective and comprehensive assessment of public administration system “digital maturity” level in Russian Federation regions, along with the characteristics of the basic conditions for the implementation of digital transformation, which determine, in fact, the readiness’ degree of region for use information technologies, it is necessary to take into account the influence of regional factors that hinder or contribute to the development of these processes.
Establishment and Observance of Tax Law Principles as a Factor in Protecting the Rights and Legitimate Interests of Taxpayers
Authors: Vasiljeva Natalya
Published: May 2024

The article is devoted to the analysis of the problems of legal regulation of tax law principles. The author draws attention to the fact that the principles should serve not only as a guideline for the legislation development in the tax sphere. The taxpayers’ rights and legitimate interests will be protected only in case of strict compliance with the established taxation principles. The author emphasizes the analysis of compliance with the principle of taking into account the actual ability of the taxpayer to pay tax. It is indicated that the presence of a taxable object does not always indicate the actual ability to pay tax. It is established that the correlation of the factor’s absence is possible through the establishment of social tax benefits. Attention is paid to the characterization of violations of the principle of tax certainty from the insufficient legal regulation to its redundancy, which leads to use of complex legal structures that are difficult for understanding. The principle of interpretation of all irremediable doubts, contradictions and ambiguities of legislative acts on taxes and fees in favor of the taxpayer, its possible violations is investigated. The conducted research allowed to come to the conclusion that the basic principles of taxation should not be declarative, they should be reflected and developed in other norms of legislation on taxes and fees.
Comparative Assessment of the Parameters of Spatial Heterogeneity of the Social Sphere of the Far Eastern Federal District Regions
Authors: Kovalchuk Ludmila
Published: May 2024

Spatial heterogeneity is an objective reality and a condition for the development of individual territories located in space. The total set of competitive advantages of territories determines the level of development of their economy and social sphere and the level of differences between individual territories. In its turn, from the standpoint of the federal district, the differences between the territories of the constituent entities determine the different positions and roles of the territories within the federal district. Federal executive authorities make decisions on the need to smooth out differences and apply smoothing mechanisms if the differences between the constituent entities of the Russian Federation are significant. In connection with the need to use smoothing mechanisms, the question arises about the measure of calculation and the magnitude of the differences, in which there is a need to apply existing or develop new smoothing mechanisms.
The element of scientific novelty presented in the article is an approach to assessing the spatial heterogeneity of the parameters of the social sphere. The possibilities of using the proposed approach are considered on the example of the Far Eastern Federal District and its «new» subjects: the Republic of Buryatia and the Trans-Baikal Territory, which have been part of the Far Eastern Federal District since the end of 2018. The result allowed us to conclude that certain territories, including the «new» ones, despite comparable development conditions, demonstrate a significant lag in the parameters of social development and they require the application of additional measures of state support.
The Medical Tech Facilitator: An Emerging Position in Dutch Public Healthcare and Their Tinkering Practices
Authors: Van Voorst Roanne
Published: May 2024

This article focuses on the emerging position of the ‘medical tech facilitator’ developed by practitioners in the Dutch public healthcare system. The analysis is based on anthropological fieldwork conducted in Dutch hospitals. It highlights, firstly, the practices and ongoing negotiations that these facilitators engage in, to maintain a position between two parties—the medical sector and the technology industry. I argue that the practices of medical tech facilitators are not (only) a result of personal, lucrative interests, but should be seen as a pragmatic way of coping, or tinkering, with a healthcare system that is experienced by them as frustrating and inefficient. Secondly, the article reveals the outcomes of these practices for public healthcare. I will pose that this emerging and ambiguous position leads to a co-production of specific health policies—something which is concerning, considering the fact that medical tech facilitators typically lack technological expertise. As such, they both resist and reproduce the problems they experience in their daily work.
An evaluation of variable selection methods using Southern Africa solar irradiation data
Authors: Maposa Daniel , Masache Amon , Mdlongwa Precious , Sigauke Caston
Published: May 2024

Dimensionality poses a challenge in developing quality predictive models. Often when modelling solar irradiance (SI), many covariates are considered. Training such data has several disadvantages. This study sought to identify the best variable embedded selection method for different location and time horizon combinations from Southern Africa solar irradiance data. It introduced new variable selection methods into solar irradiation studies, namely penalised quantile regression (PQR), regularised random forests (RRF), and quantile regression forest (QRF). Stability analysis, performance and accuracy metric evaluations were used to compare them with the common lasso, elastic and ridge regression methods. The QRF model performed best in all locations followed by the shrinkage methods on hourly data. However, it was found that QRF is not sensitive to associations through correlations, thereby ignoring the relevance of variables while focusing on importance. Among the shrinkage methods, the lasso performed best in only one location. On the 24-hour horizon, elastic net dominated the performances among the shrinkage methods, but QRF was best in three locations of the six considered. Results confirmed that variable selection methods performed differently on different situational data sets. Depending on the strengths of the methods, results were combined to identify the most paramount variables. Day, total rainfall, and wind direction were superfluous features in all situations. The study concluded that shrinkage methods are best in cases of extreme multicollinearity, while QRF is best on data sets with outliers or/and heavy tails.
The Opportunities for Mathematical Reasoning Skills That Teachers Provide for Their Students in The Learning Environment
Authors: Öz Tuba , Işık Ahmet
Published: May 2024

The acquisition of mathematical reasoning skills is directly related to the opportunities gained by the students in the learning environment. The complete lack or the rarity of such situations that support mathematical reasoning in the learning environment is an obstacle to conceptual learning. Therefore, it is important to investigate the extent to which different aspects of reasoning are encountered in teachers’ presentations and to convey the reflections of those from the learning environment. The objective of this study is to examine the opportunities for mathematical reasoning skills that teachers give to their students. A holistic case study design was used in the study process as a qualitative research approach. The study was carried out with two teachers working in public schools. Unstructured observations and video recordings conducted by the researchers were used to collect data, and content and descriptive analysis analyse the obtained data. When the teachers were evaluated regarding the opportunities for mathematical reasoning they provided in their classes, it was concluded that although these constitute a variety of opportunities, they present limited opportunities that could fully support mathematical reasoning. It is thought that offering limited opportunities in the learning environment may negatively affect students’ mathematical reasoning skills.
The Effects of Digital Educational Games on Secondary School Students’ Attitudes Towards Elective English Class and on Increasing Their English Listening Skills and Vocabulary
Authors: Tevetoğlu Kevser , Korkmaz Özgen
Published: May 2024

The purpose of this study was to investigate the impact of digital educational games on secondary school students' attitudes towards elective English lessons, as well as the influence of digital educational games on the development of EFL listening skills and vocabulary learning. The study group included 40 students in two classes of 6th grade elective English course from a secondary school in Samsun province of Türkiye during the academic year 2022-2023. A quasi-experimental model with a pretest-posttest control group was used in the study. A total of six weeks, namely two hours of instruction each week, made up the trial period. Digital instructional games meeting certain criteria set by the study were used to teach the experimental group. In the control group, no digital educational games were employed, and the same teaching strategies as before the experiment were used. An academic achievement exam covering vocabulary and listening and the "Middle School English Course attitude scale" were utilized as data gathering tools. The study revealed that digital educational games had a favourable impact on secondary school students' views about the elective English class. Additionally, it was noted that the pupils in the experimental group improved their vocabulary and listening skills more than those in the control group. In conclusion, considering the positive outcomes of using digital educational games in both foreign languages and other disciplines, we can say that their integration into education will have positive effects on academic achievement and may positively affect students' attitudes towards that course by providing them with a fun learning environment. This makes the case for the potential use of digital educational games as a tool for learning-reinforcing activities in elective English and other elective classes.
Situating a Prism to See ‘All Colors’: Evaluations of the E-school System in Türkiye from the Perspective of Educational Equity
Authors: Ayyıldız Pınar
Published: May 2024

This research intends to delve into the first-hand information pertaining to learning analytics that belongs to PreK–12 education at micro, meso, and macro levels (Shum, 2012) in Türkiye from the perspective of equity in education through seeking to obtain the views of educational authorities and policy makers viz. school principals, the members of district national education directorate as well as those of Innovation and Educational Technologies General Directorate of MoNE (Republic of Türkiye Ministry of Education). To do so, adopting a qualitative route, the study attempts to inquire into the perceptions of the said groups i.e., 45 participants; in total-with 15 participants from each-about the role and place of the existing “E-school” structure that employs learning analytics towards the use of Big Data in Türkiye. This is realized particularly toward addressing and catering to students at risk alongside the disadvantaged. In this direction the research question is: “How do the decision-making bodies in Türkiye see the current E-school system as regards ensuring and sustaining educational equity?”. The semi-structured interviews aim to direct questions e.g., respecting the situation with school dropouts, the cases of students with special needs, the situation of those who are struggling and of refugees. The findings indicate a superposition; an entangled being of inherent disadvantages and that the present system needs to be further amended to better care for ‘all’ to speak of equity. This study will cast light on the potential value of learning analytics regarding its use for targeting/solving equity problems through the expert opinions from a developing country with highly dynamic demographics.