bluuebunny/crossref_metadata_2025 huggingface dataset:
An assessment of the challenges faced by grade 11 and 12 teachers in the teaching of biology in selected schools in the Katima Mulilo education circuit
Authors: Ayiawung Mirabel Moakong , Ncube Dingindawo , Nkengbeza David
Published: November 2023

The aim of this paper was to investigate the challenges, faced by grade 11 and 12 teachers in the teaching of Biology in selected schools. The training of science teachers after independence till today has not succeeded in fully addressing the challenges teachers faced in the teaching of Biology. The study was guided by researchers like Lebata and Mudau [1], Makeleni, and Sethusha [2] who discovered that teachers faced challenges in the teaching of Biology because of the lack of well-equipped laboratories, limited prescribed textbooks, and overcrowded classes. The researchers use a case study design and a qualitative research approach in executing this study. A qualitative research approach was used in this study. The major findings include the lack of well-equipped laboratories and libraries, which have hindered the teaching and learning of Biology in the selected schools. The lack of adequate prescribed textbooks and overcrowded classrooms further hindered the teachers’ ability to impart knowledge to their learners. Large Biology syllabus content and learners’ poor attitude among others, are other challenges hindering the quality of teaching in the selected schools. We recommend that the Ministry of Education should build modern libraries and equip them with computers and internet connectivity, textbooks, and e-learning tools to help learners and teachers inculcate a culture of reading and studying. Teachers should introduce shared personal practice, and collective learning and application as used in professional learning communities. Teachers and principals should request for sponsors to build well-equipped laboratories and libraries for the schools. Teachers and principals can also request to temporally use the laboratories in other schools that have the needed facilities
Principles of formation of the foreign language communicative competence of specialists in ship handling in the context of lifelong learning
Authors: Shvetsova Iryna
Published: November 2023

The article analyses the basic principles underlying the modernisation of professional training of specialists. On the basis of the analysis, it is substantiated that the formation of the foreign language communicative competence of specialists in ship handling in the context of lifelong learning is a process, focused on the implementation of the tasks of developing a linguistic personality capable of carrying out independent communicative activities in an integrated multicultural environment, working with information in the system of foreign language linguistic culture and using it for personal and professional purposes. The process of formation is effective if the following principles of are observed: axiologisation (involves the development of skills to build speech behaviour adequate to the socio-cultural characteristics of the linguistic society); consistency and systematicity (ensured by methodologically and psychologically sound construction of programmes and manuals, as well as observance of the sequence of transition from simple to complex in the educational process); interdisciplinary integration (involves the formation of special knowledge, skills and abilities, taking into account interdisciplinary links, integration of teaching English and technical maritime disciplines); reflexivity (involves a conscious attitude to the learning process and mastering the techniques of self-assessment and building independent work); communicative (involves the formation of the foreign language communicative competence of specialists on the basis of transfer to the real environment); individualisation (taking into account the level of abilities, development of personal potential and individuality of cadets, understanding and response of the teacher to the needs of students); continuity (purposeful and gradual combination of individual stages of professional development)
Promoting an ideal english first additional language lesson: a leadership perspective
Authors: Zano Kufakunesu , Mbirimi-Hungwe Vimbai
Published: November 2023

Education systems are the outcome of societal forces, and there are telling trends in the 21st century society that include the rise of multicultural societies, a highly mobile population and the rise in information and communication technology. Thus, this study aims to investigate how to promote an ideal English First Additional Language (EFAL) lesson in a high school setting. The researchers used the conversation analysis since this was a qualitative study. Only one Head of Department, Languages, who works with other five EFAL teachers in her department in one high school in a selected district in South Africa, was selected to participate in this study. The findings indicate that an ideal EFAL classroom is one where the EFAL teacher is conscious of the fact that having learners with different cultural and linguistic backgrounds in one classroom may have an influence on the teaching-learning process in an EFAL classroom. This calls for EFAL teachers to allow learners to draw from all the dimensions of their lives to interpret any EFAL task at hand. Besides, it is imperative to measure EFAL teachers’ strengths and weaknesses thus making training and career development possible, so that they know how to promote ideal EFAL lessons. It is in the school’s best interest to ensure ongoing training and career development of each EFAL teacher. Even performance reviews clarify areas where training may be required, but they also explain unique motivators specific to each EFAL teacher. Each EFAL teacher is motivated by different resources, for example, for some, it may be money or payment of fees. Staff development is encouraged as it helps in formulating the learning goals, identifying the steps, involved in attaining the learning aims, establishing a healthy classroom climate, promoting cooperative learning and using technological tools, fostering learner-centred learning and keeping learners in EFAL by giving them encouraging feedback
Investigation of energy efficiency of hydrogen production in alkaline electrolysers
Authors: Lysenko Olha , Ikonnikov Valerii
Published: November 2023

The object of research is the energy efficiency of the electrolysis process in electrolyzers with alkaline electrolyte electrical parameters. The existing problem consists in obtaining the energy efficiency of the process in an electrolyzer with an alkaline electrolyte of more than 65 %.
To solve this problem, it is proposed to manufacture an electrolyzer with metal electrodes made of stainless steel and separated from each other by a gas-tight membrane (Bologna cloth) to separate hydrogen and oxygen gases. To establish the energy efficiency characteristics, an experimental installation was made, and the necessary measuring equipment was also used. In the course of the work, a research methodology was developed and the necessary calculation of the measured values was carried out. As a result, the influence of the operating voltage on the consumption of the current flowing through the electrodes of the electrolyzer and the power consumed by it was revealed, the values of which increase with the increase of the operating voltage. It was established that the energy efficiency of the process in electrolyzers with an alkaline electrolyte decreases with an increase in the operating voltage. At operating voltages of 3 V, 4 V, and 5 V, the energy efficiency is 85.7 %, 77 %, and 70 %, respectively. The proposed technique involves conducting experimental studies directly on a functioning electrolyzer.
The practical implementation of the use of a gas-tight membrane (Bologna fabric) can help reduce the cost of manufacturing an electrolyzer. Therefore, the presented research will be useful for the industrial production of hydrogen.
Production of white cement by low-temperature firing
Authors: Dorogan Nataliia , Chernyak Lev , Pakhomova Victoria , Shnyruk Oleg
Published: November 2023

The object of research was silicate systems based on CaO–SiO2–AL2O3 oxides for the production of white cement under the condition of reducing the maximum firing temperature and energy intensity of the products. A complex of raw materials of different genesis was chosen for the study – chalk, pyloquartz, aluminum hydroxide. The criteria for the selection of raw materials were increased reactivity during firing and minimization of the content of colored oxides. During the research, methods of physico-chemical analysis of silicates and standardized testing of properties were comprehensively applied. Determination of the rational compositions of the raw material mixture was carried out using the created computer program «RomanCem». Based on the analysis of the calculation results, a significant value of the quantitative ratio of aluminum-silica-containing components Ca/Cp was determined. It was established that in the interval of the quantitative ratio Ca/Cp from 0.4 to 0.6, the silica modulus of the binder changes in an inversely proportional dependence within n=3.8–2.5 at a low content of colored iron oxides at the level of C=0.14–0.17 %. The compositions of the raw material mixture based on chalk with the use of an aluminum-silica-containing complex of aluminum hydroxide-powder quartz were determined, which allow, at the maximum firing temperature of 1100–1200 °C, to obtain a mineral binder that exceeds natural or Roman cement in terms of strength (21–27 MPa versus 10–15 MPa) and whiteness (80–85 % versus 55–60 %). Peculiarities of phase transformations in the material during low-temperature firing as a factor of structure and properties are noted. The development and practical use of white cement, obtained by reducing the maximum firing temperature and, accordingly, specific fuel consumption, reveals additional reserves for the production of mineral binders, contributes to the comprehensive solution of issues of resource conservation and production technology of silicate building materials.
Logika rozwoju królestwa Bożego. Przypowieść o ziarnie. Mk 4, 26–29
Authors: Dynak Adam
Published: November 2023

Artykuł jest studium przypowieści o ziarnie Mk 4, 26–29, występującej tylko w Ewangelii św. Marka. W podjętej analizie autor próbuje odpowiedzieć na pytanie, dlaczego ten tekst nie znajduje się w pozostałych Ewangeliach. Celem rozważań jest dostrzeżenie właściwej roli siewcy, roli i ziarna. Zostały także poruszone powiązania przypowieści z tekstami prorockimi Starego Testamentu, a także kwestia eschatologiczna obecna w nauczaniu Jezusa. Ostateczny wniosek analizy egzegetyczno-teologicznej skupia się wokół prawdy, że królestwo Boże na ziemi rozwija się według planów Bożych, dlatego człowiek wierzący powinien być pewny w jego pełnym objawieniu się nawet wtedy, kiedy nie dostrzega wyrazistych znaków jego obecności w życiu.
Pieśni ku czci Matki Bożej Bolesnej w wybranych polskich śpiewnikach katolickich
Authors: Garnczarski Stanisław
Published: November 2023

Rozważania o współcierpieniu Maryi i Jej czynnym jednoczeniu się z Chrystusem umęczonym i ukrzyżowanym stały się podstawą do rozwoju różnych form literatury oraz ikonografii pasyjnej. Źródłem pieśni ku czci Matki Bożej Bolesnej stały się plankty, czyli lamenty Matki Bożej Bolesnej, wywodzące się ze średniowiecznych pasyjnych dramatów liturgicznych oraz sekwencja Stabat Mater, wielokrotnie tłumaczona na język polski. Dialog, jako forma ustnej komunikacji została zastosowana w twórczości literackiej. Pieśni w tej formie dają możliwość dynamicznej konfrontacji różnych poglądów, przez co czytelnik, a w naszym przypadku śpiewający zostają wciągnięci do przeżywania ukazywanych treści. Ważny dział pieśni o cierpiącej Maryi stanowią śpiewy do siedmiu boleści Matki Bożej, czy też pieśni do Matki Bożej Saletyńskiej. Ostatnia grupę stanowią pieśni, w których wierni proszą Bolejącą Matkę o wstawiennictwo i pomoc w trudnych sytuacjach, zwłaszcza w cierpieniu. Przebadane pieśni prezentują szerokie spektrum struktury poetyckiej, więcej lub mniej odznaczającej się kunsztem poetyckim.
RESIDUAL GASTRIC VOLUME IN MORBIDLY OBESE DIABETICS AFTER AN OVERNIGHT FASTING OR 3 HOURS OF A CARBOHYDRATE-ENRICHED SUPPLEMENT: A RANDOMIZED CROSSOVER PILOT STUDY
Authors: PIMENTA Gunther Peres , DANDIN Ozgur , CAPOROSSI Cervantes , AGUILAR NASCIMENTO José Eduardo
Published: November 2023

ABSTRACT BACKGROUND: To reduce the risk of regurgitation during anesthesia for elective procedures, residual gastric volumes (RGV) have traditionally been minimized by overnight fasting. Prolonged preoperative fasting presents some adverse consequences and has been abandoned for most surgical procedures, except for obese and/or diabetic patients. AIMS: The aim of this study was to assess the RGV in morbidly obese diabetic patients after traditional or abbreviated fasting. METHODS: This study was approved by the Ethics Committee for Research with Human Beings from the Federal University of Mato Grosso, under number 179.017/2012. This is a prospective, randomized, and crossover design study in eight morbidly obese type II diabetic patients. RGV was measured endoscopically after either traditional overnight fasting of at least 8 hours, or after abbreviated fasting of 6 hours for solids and 3 hours for a drink containing water plus 25 g (12.5%) of maltodextrin. Data were expressed as mean and range and differences were compared with paired t-tests at p<0.05. RESULTS: The study population had a mean age of 41.5 years (28–53), weight of 135 kg (113–196), body mass index of 48.2 kg/m2 (40–62.4), and type II diabetes for 4.5 years (1–10). The RGV after abbreviated fasting was 21.5 ml (5–40) vs 26.3 ml (7–65) after traditional fasting. This difference was not significant (p=0.82). CONCLUSIONS: Gastric emptying in morbidly obese diabetic patients is similar after either traditional or abbreviated fasting with a carbohydrate drink.
Antropologias, artes e políticas
Authors: Grunvald Vi , Raposo Paulo , Sansi Roca Roger
Published: November 2023

Resumo No presente artigo, o nosso objetivo foi produzir sob um olhar antropológico um estado da arte relativo a práticas artísticas de compromisso político introduzindo interlocuções com pesquisas que discutissem várias relações estabelecidas entre os fenômenos, experiências, práticas e conceitos acerca de gestos artísticos de fundo político, tendo como eixos as transformações ocorridas recentemente. Entendemos a relação entre arte, política e antropologia a partir de uma não hierarquização ou não dependência de um dos campos sobre o(s) outro(s). E, por isso, convocamos nossas leitoras e leitores para um olhar o mais horizontal possível deste triângulo conceitual: advogamos a existência de possibilidades diversas de pensar antropologicamente, de praticar arte ou de fazer política.
Factors associated with the evolution of COVID-19 in pregnant women: a Brazilian population-based study
Authors: Andrade Luis Henrique de , Santos Gustavo Gonçalves dos , Sordi Mônica Aparecida de Paula de , Nunes Hélio Rubens de Carvalho , Parada Cristina Maria Garcia de Lima
Published: November 2023

ABSTRACT Objective: To assess the evolution of COVID-19 among Brazilian pregnant women, identifying sociodemographic and clinical predictors related to admission to ICU - Intensive Care Unit and death. Method: Cross-sectional, population-based study, carried out with a secondary database, based on data from the Influenza Epidemiological Surveillance Information System. Descriptive analysis was performed, followed by multiple linear regression with Poisson response, adopting critical p < 0.05. Results: Intensive care admission rates of 28.2% and death rates of 9.5% were identified. Region of residence, gestational trimester, number of comorbidities and respiratory signs and symptoms were associated with the risk of admission to intensive care. Age over 34 years, comorbidities, oxygen saturation equal to or less than 95%, admission to intensive care and ventilatory support, invasive or not, increased the risk of death. Conclusion: Sociodemographic and clinical predictors showed an association with hospitalization in intensive care and death of pregnant women with COVID-19.
Caracterização das experiências de educação interprofissional na formação em saúde na Universidade de São Paulo
Authors: Costa Jaqueline Bissolati , Mazzi Nathalia Romeu de , Peduzzi Marina , Germani Ana Claudia Camargo Gonçalves , Silva Jaqueline Alcântara Marcelino , Agreli Heloise Lima Fernandes , Nascimento Ariana Gomes , Belber Gisele Silvestre , Leonello Valéria Marli
Published: November 2023

RESUMO Objetivo: Mapear as experiências de Educação Interprofissional (EIP) em Saúde no campus São Paulo da Universidade de São Paulo. Método: Pesquisa descritiva, exploratória, com abordagem quantitativa e coleta de dados por meio de um questionário online, direcionado aos docentes de oito unidades de ensino e 14 cursos da área de saúde. Os dados foram analisados por meio de frequências absolutas e percentuais. Resultados: A maior parte dos docentes não participa de experiências de EIP (70,4%). Em sua maioria, as experiências têm de seis a dez anos de existência, com envolvimento de até quatro docentes e em pequenos grupos de estudantes, majoritariamente extracurriculares ou atividades de extensão. As estratégias de ensino e avaliação são diversificadas e abertas aos estudantes de todos os anos. Conclusão: As experiências de EIP envolvem um número pequeno de estudantes e professores e, embora consolidadas em relação ao tempo de oferta, são limitadas aos espaços extracurriculares. Fatores como melhorias no apoio institucional e desenvolvimento docente são apontados como importantes para avançar no fortalecimento da EIP no contexto analisado.
DIVERSIDADE PRODUTIVA E ATIVIDADE INDUSTRIAL: UMA ANÁLISE PARA OS MUNICÍPIOS BRASILEIROS
Authors: Giovanini Adilson , Pereira Wallace Marcelino , Almeida Helberte João França
Published: November 2023

RESUMO Diante da importância da diversificação produtiva para o setor industrial, o presente estudo busca avaliar se o nível de diversificação da estrutura produtiva influencia na adoção de políticas industriais. Para tanto, utiliza-se dados de 5.570 municípios brasileiros no ano de 2015, e o método das reflexões. A abordagem das estatísticas descritivas, bem como a metodologia dos Mínimos Quadrados Ordinários (MQO) é utilizada para verificar as hipóteses testadas. Os resultados obtidos mostram que existe uma relação positiva e significante entre a Diversidade Efetiva de Atividades e a adoção de políticas industriais em todos os cenários analisados. Portanto, os resultados reforçam o argumento de que a política industrial é adotada em resposta à presença de atividades produtivas específicas, sendo condicionada pela diversificação da estrutura produtiva dos municípios.
Residência Médica e Reforma Psiquiátrica brasileira: convergências e conflitos na formação para o cuidado em saúde mental
Authors: Carneiro Pedro Carlos , Ayres José Ricardo de C. M.
Published: November 2023

Resumo O estudo tem por objetivo identificar em que medida e de que forma os princípios, diretrizes e métodos propostos pela Reforma Psiquiátrica Brasileira (RPB) estão presentes na formação dos psiquiatras em programas de Residência Médica. Trata-se de estudo qualitativo que investiga conteúdos e experiências promovidos durante a formação em programas de Residência Médica de Psiquiatria no Brasil. Foram entrevistados 16 sujeitos em quatro instituições públicas de formação, sendo dois programas centrados em hospitais-escola e outros dois em modelos integrados a serviços da Rede de Atenção Psicossocial. Os resultados do estudo permitem sustentar que, apesar de todos os programas remeterem a princípios da RPB em seus conteúdos teóricos, as oportunidades de prática dos modelos integrados dialogam mais diretamente com a experiência da RPB. Entre outros resultados relevantes, destacam-se: preocupação com o cuidado integral, não centrado apenas nos diagnósticos e sintomas, mas na singularidade e no andar a vida dos sujeitos; crítica à medicalização, seja na forma do uso abusivo de medicação, seja como interferência em demandas não especificamente médicas; importância de experiências interdisciplinares em equipes multiprofissionais e uma proposta da superação de uma cultura manicomial que vai além da institucionalidade dos serviços, mas que opera nos processos cotidianos de normalização social.
“É para o seu bem”: a "violência perfeita" na assistência obstétrica
Authors: Flores Carolina Aita , Mello Netto Vitor de
Published: November 2023

Resumo No Brasil, a violência obstétrica vem sendo pesquisada desde os anos 1980. Na década de 90, no entanto, o fenômeno passou a receber maior destaque. A forma de violência analisada neste trabalho refere-se a uma violência velada, chamada de “violência perfeita”. Este ensaio reflete sobre a ocorrência da violência perfeita na obstetrícia, especialmente no que concerne às sutilezas do discurso médico, que pode travestir essa agressão numa forma de cuidado. A violência perfeita pode soar como preocupação da parte do médico com a saúde da gestante, que pode se submeter às recomendações médicas de forma passiva, por acreditar que deve ser o melhor para ela ou para o bebê. Ao praticar a violência perfeita, o obstetra pode interferir no desfecho do parto. A “epidemia” de cesarianas no Brasil tem sido justificada pelos médicos como preferência da mulher, mas pesquisas refutam essa hipótese e provocam a reflexão: quem está de fato escolhendo a modalidade de parto? O presente ensaio nos mostra que observar as sutilezas do discurso médico pode ajudar a responder essa pergunta.
Percepções de familiares sobre as práticas de intervenção precoce na infância em um centro especializado de reabilitação
Authors: Morato Amanda Prado , Pereira Ana Paula Silva , Silva Carla Cilene Baptista da
Published: November 2023

Resumo A intervenção precoce centrada na família tem sido considerada entre os pesquisadores como o atual paradigma para o cuidado à infância. Este artigo tem por objetivo apresentar e discutir percepções de familiares sobre as práticas de intervenção precoce e participação ativa da família, realizadas pela equipe de um Centro Especializado de Reabilitação (CER) no atendimento de crianças com Transtorno do Espectro Autista (TEA). Participaram da pesquisa nove familiares de crianças com TEA, de zero a quatro anos e 11 meses, inseridas no serviço. Foram realizadas entrevistas com os participantes para investigar o conhecimento das famílias e suas expectativas sobre a participação nas intervenções, e após a coleta de dados foi feito a análise temática de conteúdo. A prática da equipe desse serviço não está relacionada exclusivamente a um único modelo de apoio às famílias, com a participação família sendo, em sua maioria, alinhada ao modelo de apoio focado na família. Espera-se que este estudo possa contribuir e fomentar discussões sobre a intervenção precoce, dos modelos de apoio à família, e em especial das crianças com TEA.
Additives and storage time for silage of pineapple crop waste
Authors: Freitas Roberta Santos de , Guim Adriana , Mello Alexandre Carneiro Leão de , Ferreira Marcelo de Andrade , Clemente João Vitor Fernandes , Silva Salmo Olegário Lima da , Farias Lucas Lemos de , Medeiros Rodrigo Barbosa de , Silva Tomás Guilherme Pereira da , Silva Pedro Henrique Ferreira da
Published: November 2023

Abstract The objective of this work was to evaluate the effects of additives and storage time on the quality and aerobic deterioration of silages of pineapple crop waste. A completely randomized design was used, in a 3×3 factorial arrangement, with three treatments: pineapple waste silage without additives or with the addition of cornmeal or wheat bran (20% fresh matter) at three storage times (60, 90, and 120 days). After each storage time, losses and aerobic deterioration were quantified, chemical composition was analyzed, and digestibility assays were performed. The storage time of 120 days resulted in higher dry matter losses in all treatments. The additives incremented the dry matter contents of the pineapple-based silages, which went from 182.1 g kg−1 (control silage) to 298.7 and 297.6 g kg−1 (cornmeal and wheat bran, respectively). The control silage with the addition of cornmeal showed the highest dry matter digestibility (739.7 g kg−1) and lowest neutral detergent fiber content (251.9 g kg−1). The production of CO2 started to increase on the first day of air exposure in silages without additives, but only after six days in those with additives. Including cornmeal as an additive in the silage of pineapple crop waste improves its digestibility and reduces its deterioration speed.
SPORTS PRACTICE AFTER LUMBAR DISCECTOMY IN NON-PROFESSIONAL ATHLETES: A CROSS-SECTIONAL STUDY
Authors: KANAS MICHEL , ASTUR NELSON , GARCIA LEONARDO RAYMUNDO , OLIVEIRA LUCANO BATONI , CAMPIOLO RAFAEL BOU ROUJEILE , WAJCHENBERG MARCELO , MARTINS DELIO EULALIO
Published: November 2023

ABSTRACT Introduction: Most athletes treated for lumbar disc herniation return to play between 3 and 9 months after conservative or surgical treatment. In the last two decades, the general population increased the practice and participation in amateur competitions, being more prone to overload injuries. Objectives: To evaluate sports practice after lumbar discectomy in non-professional athletes. Methods: In the last five years, a digital questionnaire was sent to patients submitted to up to two levels of open discectomy. After signing the informed consent form, the patients were instructed to answer the questionnaire with personal and clinical data related to disc treatment and sports practice after the procedure. Results: Of 182 contacted patients, a hundred answered the questionnaire; 65% practiced regular sports activities before surgery. From patients who practiced sports before surgery, 75.38% returned to sports activities after the procedure. 39.29% returned between 3 and 6 months. Only 12.31% referred to impaired sports performance, while 56.92% performed unaffected, and 21.54% reported improved performance after surgery. Prior sports practice, participation in amateur competitions, and regular core strengthening were significantly associated with sports practice after surgery (P<0,05). Conclusions: From the participants who had already practiced sports before surgery, 75.38% returned after the surgical procedure. Sports practice before surgery, participation in amateur competitions, and regular core strengthening were positively associated with a return to sports practice after lumbar discectomy. The study shows that core strengthening should be encouraged and recommended to all non-professional athletes who intend to return to sports after microdiscectomy surgeries. Level of Evidence: III; Cross-Sectional Retrospective Study.
Carbon fiber–polyetheretherketone-reinforced PVA composites for bone graft applications
Authors: Shanmuga Sundaram Namasivaya Naveen
Published: November 2023

Poly(vinyl alcohol) (PVA) is a synthetic, bioinert, semicrystalline, biodegradable, non-toxic and thermoplastic polymer extensively used in the field of biomedical engineering. The weak mechanical properties of PVA, such as low strength and Young’s modulus, limit its application as a bone implant. However, PVA can be reinforced with a suitable material to improve its mechanical properties. Carbon fiber (CF)–polyetheretherketone (PEEK) is a superior thermoplastic synthetic biomaterial with good tensile strength, stiffness, wear properties and X-ray translucence. In this study, CF–PEEK-reinforced PVA composites were prepared by varying the CF–PEEK concentration (0, 0.25, 0.50, 0.75, 1.00, 2.00 and 3.00% w/v) in the PVA matrix (10% w/v) using the solvent-casting method. The physical, chemical, biological and mechanical properties of the prepared PVA–CF–PEEK composites were studied. The environmental scanning electron microscopy micrographs showed agglomeration of CF–PEEK at higher concentrations – that is, 1, 2 and 3% w/v. With the inclusion of CF–PEEK in PVA, the contact angle of the composites was found to increase. The increased hydrophobicity of the samples resulted in reduced swelling and degradation rate. In the hemolysis study, the percentage hemolysis values were found to be <5%, revealing the hemocompatible nature of the developed composites. An increase in in vitro protein adsorption was observed, and cell viability studies showcased the biocompatible nature of the prepared composite samples. Thus, the developed CF–PEEK–PVA polymer composites present great potential for bone graft applications.
Finite-element analysis of ultimate lateral pressure of snowflake pile in undrained clay
Authors: Gao L. , Lu D. , Gao X.
Published: November 2023

The finite element method is used to investigate the ultimate lateral pressure of a snowflake pile in undrained clay in this paper. The effects of section geometry, lateral loading direction and pile–soil adhesion coefficient on the ultimate lateral pressure of snowflake pile are investigated by parametric analysis. The analysis results show that the normalised ultimate lateral pressure of the snowflake pile gradually decreases as the flange length–thickness ratio λ increases, the normalised ultimate lateral pressure is linearly related to the pile–soil adhesion coefficient α, the normalised ultimate lateral pressure shows the trend of first decreasing and then increases with the increasing of lateral loading angle β. On this basis, the closed-form formula of the ultimate lateral pressure coefficient of a snowflake pile is proposed. The research results can provide the basis for the design of snowflake piles in future.
Tracking disappeared species IV. Occurrence of Coleophora millefolii Zeller, 1849 in Hungary (Lepidoptera: Coleophoridae)
Authors: Szabóky Csaba , Takács Attila
Published: November 2023

Three voucher specimens of Coleophora millefolii Zeller, 1849 (Lepidoptera: Coleophoridae) from Hungary are deposited in the Hungarian Natural History Museum. All of them were collected more than 70 years ago, in 1952, by László Gozmány on Hársbokor hill near Budakeszi (Pest County). We report eleven additional, more recent localities of this species in Hungary. The larval case, an adult specimen, the female genitalia and the known Hungarian localities of the species are illustrated.
Review of Modern Electricity Metering Devices
Authors: Yumenchuk Andrey
Published: November 2023

The article gives a description of electricity meters used in the organization of electricity metering. Since 2021 electricity suppliers are required to install meters with a minimum set of functions of intelligent electricity metering systems when installing new meters or replacing old metering devices with new ones, in accordance with Federal Law No. 522-FZ. Outdated induction meters will be replaced by electronic ones with greater reliability, higher accuracy and better protection against theft of electrical energy. The article describes the design of induction and electronic meters, as well as weighs up advantages and disadvantages of each type of device. We also examined smart meters with remote reading.
Personal Data Protection in MS Teams
Authors: Busko Mikhail
Published: November 2023

The article examined the architecture of the corporate platform for MS Team teamwork and analyzed the processed information when it was used for distance learning. The study found that MS Teams is an information system for processing personal data. The use of this tool in the distance learning process violates some provisions of the Federal Law "On Personal Data". There is no consent of the subject to the processing of personal data by a third-party organization on behalf of the operator and to their trans-border transfer. The collection of personal data, its recording, systematization, accumulation, storage are done through databases that are not in the Russian Federation, which is also not consistent with the law.
Approaches to the Exponential Distribution Law Use Seismic Activity Study
Authors: Kazantsev Leonid
Published: November 2023

The article discusses approaches to the practical application of the exponential distribution law to the study of data on geomagnetic activity. It also provides information on the most significant earthquakes in Alaska since 1964 to 2021, which was the strongest earthquake since the observations beginning.
Analysis of the Commodity Structure of Export and Import Russian Federation
Authors: Kolganova Darya , Malyutina Svetlana , Rampilova Adisa
Published: November 2023

This article is devoted to the study of the commodity structure of export and imports of Russia in value terms. The research examined the dynamics of the development of foreign trade from 2014 to 2018 and revealed the raw material orientation of domestic exports, which practically did not decrease even in conditions of relatively low prices for fuel and energy resources.
Quantitative Indicators of Foreign Trade of the Irkutsk Region in the Context of International Restrictions
Authors: Bagaynikov Mikhail , Vinogradova Yulia
Published: November 2023

The use of international sanctions as a tool to achieve the set political and economic goals requires study, including from the point of view of their impact on the quantitative indicators of the development of the economy of the country and regions. The purpose of the study is to examine the change in the volume of foreign trade activity of the region, which is achieved through the use of a set of indicators according to official statistics. The object of study is the external trade turnover, export and import of the Irkutsk region and their change after the introduction of international sanctions. In the course of studying this problem, we carried out a brief statistical analysis of the dynamics of changes in the region's foreign trade indicators and their intensity before and after the introduction of the main array of economic restrictions after the events of 2014. The analysis of exports and imports of the Irkutsk region was carried out using some statistical indicators in the context of commodity groups and types of products, as well as in the context of individual geographical areas. The study found the main trend of changes in the cost indicators of foreign trade and the increase in the importance for the Irkutsk region of trade with the countries of the Asian region. In addition, we revealed the general restructuring of the economic complex of the region, which provides exports.
Methodological Approaches to the Analysis of the Economic Efficiency of Energy Supply Options, Taking Into Account Environmental and Random Factors
Authors: Gubiy Elena , Zorkaltsev Valeriy
Published: November 2023

The study presents the initial methodological provisions for the analysis of the economic efficiency of energy supply options for consumers in the central ecological zone of the natural territory of Lake Baikal. We used the indicator of reduced costs as the main means of comparing options. We proposed special methods that take into account negative and positive environmental consequences, as well as the influence of random factors in the production and consumption of energy resources. The problem of minimizing negative and maximizing positive environmental consequences is solved by searching for Pareto optimal solutions to a multicriteria problem. The action of random factors is taken into account with the help of repeated simulation of the functioning of the studied energy supply technology in random implementations based on the Monte Carlo method.
Analytical Design of the Regulator for Ensuring the Optimality and Stability of the Reserve of Innovative Industrial Products
Authors: Chuprov Sergey
Published: November 2023

Demanded by the formation of the knowledge economy and the digitalization of its industrial sphere, the development of science-intensive industries requires the analytical design of the regulator and economic and mathematical modeling of dynamic processes of saturation of the market segment with innovative industrial products. In this context, two tasks are being formalized: the first is the regulation of the reserve of these products in order to stabilize it in conjunction with the indicators of the rate of change in the volume of its production and demand for it, and the second is the analytical design of the optimal regulator of the reserve of innovative products with the achievement of a minimum of its content and losses arising from due to the shortage of this product with an increased demand for it, with the proof of the asymptotic stability in general of the obtained solutions of both problems. The construction of corresponding models deepens the understanding of investment and innovation processes and equips analytical tools for adaptive management of the efficiency and stability of industrial enterprises in a turbulent economic environment.
Algorithms and Software for Numerical Estimation of Posinomial Regression Models Using the Least Squares Method
Authors: Bazilevskiy Mikhail , Karaulova Anna
Published: November 2023

The article is devoted to the construction of posinomial regression models with several monomes for each input variable. Such models generalize well-known polynomial regressions. Investigated by a posin with one variable and two monomes. The algorithm «A» of approximate estimation of posinomial regressions using the least squares method is proposed. The main disadvantage of the algorithm «A» is that due to the inter-monomic multicollinearity, the estimated posinomial regression may not be consistent with the meaningful meaning of the factors included in it. Therefore, algorithm «B» was developed, which guarantees not only the preservation of the meaningful meaning of the factors, but also the significance of all posinomial regression coefficients according to the Student's t-criterion. Algorithm «B» was implemented in the form of the POSITON-1 software package. The work of the software package is demonstrated by the example of solving a specific applied problem.
Reform of the Asylum Policy and Control of Illegal Migration: Pan- European and Polish Approaches
Authors:   Institute for African Studies of the Russian Academy of Sciences, Zakharov Ivan , Agafoshin Maksim ,   Institute for African Studies of the Russian Academy of Sciences
Published: November 2023

This article considers the development of pan-European and Polish asylum policy and control of illegal migration after the peak of the migration crisis in 2015–16. A sharp increase in the migration burden on the European Union (EU) during this period revealed systemic problems of political regulation of migration in the EU and provoked a confrontation of the interests of national and supranational actors. Despite the decline of migration flows from developing countries in Africa and Asia, the migration policy crisis has worsened over time. It is shown that the consistent position of Poland, coupled with the consolidation of the Visegrad Group, had a noticeable impact on the direction of migration policy reform. This study is based on the regulation acts of the EU, the new Migration and Asylum Pact, the diagnostic document of the Polish migration policy, and other programme documents that are positioned as the basis for the upcoming reforms. The results of the analysis of the provisions concerning the asylum policy and the control of illegal migration indicate that a compromise between national and supranational interests is emerging. The documents reviewed give priority to securitization and to reducing the risks of potential migration crises. The key mechanism for the implementation of the latter is the externalization of migration policy by creating a buffer zone in the Balkan countries, North Africa, and Turkey, which will be entrusted to coordinate migration flows and contain them in case of a crisis. Nevertheless, these measures will require not only a significant increase in financial costs, but also an even greater increase in the role of supranational actors, primarily Frontex and the European Union Agency for Asylum, by expanding their powers in EU members. For its part, Poland sees this as a challenge to national sovereignty, as well a risk to national and regional security. The confrontation of national and supranational interests carries risks for the much-needed reform of the aspects of migration policy under consideration and decreases the chances of successfully overcoming possible migration crisis
The Evolution of Russian-Turkish Relations: Ideational Convergence and Pragmatic Cooperation
Authors:   Moscow State Institute of International Relations (MGIMO University), Ayar Başaran , Arslan Orkun ,   Higher School of Economics
Published: November 2023

Moscow-Ankara relations have been experiencing an unprecedented level of partnership simultaneously with a plethora of disputes between the actors. They have managed to continue cooperation without letting the emerging disagreements cause crises similar to the Su-24 Jet incident of 2015. This study examines Russian-Turkish relations since 2016 to expose how this alignment emerged and how the two actors operate in this partnership. After reviewing the literature that highlights the limitations and fragility of the cooperation, the authors shed light on the ideational convergence that allowed the alignment, arguing that it served as the basis of the current pragmatist and personalistic relations. Moreover, four main characteristics of this alignment are explained: 1) risk-aversion as the priority; 2) reliance on personalistic relations between the leaders; 3) focus on resolving issues among themselves instead of including non-regional actors; 4) economic pragmatism. Then, the risks that can potentially cause a collapse of this partnership are discussed, emphasizing the danger caused by the accumulation of unresolved disputes and political uncertainties in bilateral relations. Authors argue that under the current conditions, the partnership is fragile and will be tested by the upcoming challenges
Comparative Analysis of the Legal Regulation of the Digital Platformʼs Responsibility for the Distribution of Internet Advertising
Authors:   Russian Academy of National Economy and Public Administration, Girich Maria , Magomedova Olga ,   Russian Academy of Foreign Trade, Levashenko Antonina ,   Russian Academy of National Economy and Public Administration
Published: November 2023

Digital platforms serve as an effective ground for trade in goods and services, which stimulates the development of advertising on the Internet. Platforms provide advertising spaces, connect advertising distributors and advertisers as operators of advertising networks, and collect data to provide personalized advertising and to enhance marketing efficiency. This article analyzes three aspects of the digital platformʼs responsibility in the distribution of advertising on the Internet. In the first aspect, the article compares approaches in Russia to those in foreign countries regarding the responsibility of digital platforms distributing advertisement in their capacity as advertiser or information intermediaries. In Russia (as in China), the platforms are held responsible for placing unfair advertising, because the platforms moderate such advertising. At the same time other countries (the U.S, those of the European Union (EU)) implement the principle of limited of information intermediary by publishing advertising, if the platform does not impact on the content of such advertising and does not know about the distribution of illegal advertising. In the second aspect, the article surveys the obligations of platforms for ensuring the traceability of advertising, maintaining registries with information about advertising, and ensuring compliance and organizing a risk analysis system to prevent anti-competitive and other illegal behaviour. The third aspect of the study considers the compliance of digital platforms with the regime of personal data by providing personalized advertising services. The research methods used in the work include comparative analysis of legal acts and law enforcement practice in Russia and in foreign countries, as well as analysis of recommendations of international organizations, in particular the Organisation for Economic Co-operation and Development (OECD).
Indicators and Ratings in Global Governance: New Trends
Authors:   Primakov National Research Institute of World Economy and International Relations of the Russian Academy of Sciences (IMEMO RAN), Kharitonova Elena
Published: November 2023

Numerous indicators and ratings aimed at assessing and comparing states based on different criteria, such as volume of gross domestic product (GDP), freedom of speech, gender equality, or attractiveness of local cuisine, have become an integral part of contemporary communications and international relations. Country rankings can be used as a basis for agenda setting, political influence, or developing approaches to global governance. National governments sometimes use rankings developed by international intergovernmental and non-governmental organizations, or in some cases by business entities, as benchmarks for their countriesʼ development and national scorecards and indexes. Or, if the ratings are considered unsatisfactory, governments can distance themselves from such reports, accusing their authors of political bias. Lately, the phenomena of international indicators and ratings, the principles behind their development, and their influence and usage in the context of global governance have attracted attention of researchers specializing in international relations and other social science disciplines. This article examines different theoretical approaches to analyzing the phenomena of indexes and ratings and provides evaluation of the phenomena. The author focuses on the premises for the increasing interest in comparative approaches and emergence of newly developed ratings and indexes, highlights limitations and weaknesses of such approaches, and examines new trends in the field and possible scenarios of its future development in the context of current global transformations.
Talaşlı imalatta 5S uygulamasının üretim verimliliğine etkisinin araştırılması: Havacılık firmasında bir saha çalışması
Authors: Yağlı Ertuğrul , Çakır Şencan Ayşegül , Koçak Müberra Rüveyda , Şencan Cevdet
Published: November 2023

Bu çalışmada havacılık alanında faaliyet gösteren ve talaşlı imalat yapan bir firmanın takımhane bölümünde 5S yöntemi uygulanmıştır. Yapılan 5S çalışması için hazırlıklar 2020 yılının haziran ayında gerçekleştirilmiştir ve bu aydan sonra 5S yöntemine göre üretime geçilmiştir. Takımhaneye ekipman alımı ve beklemesi, kesici takım sebebiyle parça bozma oranı ile gereksiz hareket yükleri gibi çıktılar performans değerlendirme kriterleri olarak belirlenmiştir. Hazırlık kapsamında öncelikle firma çalışanlarına yalın üretim ve 5S eğitimleri verilmiştir. 5S uygulanacak alan için personeller belirlenmiş ve gerekli planlamalar yapılmıştır. 5S adımları sırasıyla başarılı bir şekilde uygulanmıştır. İyileşme verileri için, 2020 yılının ilk yarısı ile son yarısına ait çıktılar karşılaştırılarak değerlendirilmiştir. Yapılan bu çalışma neticesinde takımhanenin maliyetinde %66, takımhane sebebiyle makinelerin duruşa geçme oranlarında %76, hatalı kesici takım sebebiyle parça hurda olma oranlarında %78, takımhane içerisinde gereksiz hareket yükü oranlarında %85 oranlarında iyileşmeler gözlenmiştir. Yapılan bu iyileştirme çalışmaları neticesinde üretimin verimliliği artmıştır. Çıktıların gri ilişkisel analizinde, üretim açısından en verimli ay Kasım ayı, en verimsiz ay ise Nisan ayı olarak belirlenmiştir.