bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research to Improve Preventive Maintenance of Technical Equipment
Authors: Mălinescu Florin-Irinel , Virca Ioan 
Published: September 2022

Abstract
In order to achieve the strategic level of military equipment exploitation, according to NATO requirements, it is necessary to continuously adapt the specific maintenance activities. The main objectives pursued in the maintenance system modernization process are: to implement reliability-based maintenance, to use management methods, to present the functional scheme, and to identify the critical points in which to intervene with maintenance operations. The use of the Pareto method in the direction research studied in the paper estimates that the first two faults among those identified, namely the imbalance of the braking force on the axle and the defective service brake, represent a significant percentage of the total downtime of the Roman-DAC trucks used for the present study. According to the AMDEC data sheet, these two defects have a criticality index of 70 and 60, respectively, compared to the following identified defects, which present a criticality index of 18 and 20, respectively. In practice, the aim will be to eliminate, in particular, the identified causes that entail defects in the first and second categories. Using this research methodology, and by extrapolation to all technical equipment components, it is possible to identify solutions to improve preventive maintenance by ranking defects and performing maintenance operations on those components more often subject to damage, before they fail.
Avaliação da prevalência das dermatoses na população atendida em um ambulatório universitário ao longo dos anos: um estudo retrospectivo
Authors: Ferreira Fernanda Cambraia , Furtado Lívia Amaral Salomé , Peret Izabela Silveira Amédée , Gomes Júlia Mendes e Parreiras , Salomão Paula de Rezende , Vianna Gláucia dos Santos 
Published: September 2022

Objetivo: Estimar a prevalência das dermatoses no serviço de dermatologia em um ambulatório universitário. Métodos: Estudo transversal retrospectivo, através da coleta de perfil epidemiológico de prontuários informatizados de pacientes atendidos no serviço de dermatologia de um ambulatório de instituição de ensino superior de uma capital brasileira, no ano de 2020. Em seguida, estudo comparativo das prevalências obtidas em três estudos de 2014, 2018 e 2019 na mesma instituição. Resultados: A idade média dos pacientes foi de 48,7 anos, sendo 114 (67,9%) do sexo feminino e 54 (32%) do sexo masculino. Em relação à prevalência dos diagnósticos das consultas atendidas há uma significativa diversidade de resultados em que os grupos de dermatoses mais frequentes são os tumores epiteliais benignos e as discromias, com porcentagens bem próximas de 32,1% e 30,4%, respectivamente. Ademais, há a presença de algumas Classificações Internacionais de Doenças (CID-10) não preenchidos e outros preenchidos de forma incorreta, atribuídos pela alta demanda e pelo sistema deficitário. Conclusão: As dermatoses compõem um grupo de doenças significativamente prevalente, sendo que algumas se apresentam mais frequentemente dependendo de fatores como sexo e idade do grupo analisado. O reconhecimento dessas patologias é essencial devido a sua alta prevalência e o seu estudo deve ser incentivado.
KINETIC ASPECTS OF THE DETONATION PRODUCTION OF NANODIAMONDS
Authors: Петров Е.А. 
Published: September 2022

Наноалмазы (НА) - уникальный материал, сочетающий в себе свойства алмаза и преимущества наноструктур, а детонационный метод его получения по праву относится к перспективному виду базовых технологий. В работе исследовались алмазные и углеродные наноструктуры экспериментального и промышленного детонационного синтеза, полученные как из взрывчатых веществ (ВВ), так и из смеси взрывчатых веществ с углеродными добавками. Рассматривались вопросы образования НА в зоне химических реакций и влияние масс-энергетических и кинетических параметров ВВ на фазовый состав, микроструктуру и зернистость НА. Показана эволюция их изменений, как в первичных продуктах синтеза, так и при последующем обогащении. На практике изменения в микроструктуре проявляются в увеличении размеров кристаллита и зерна НА в процессе обогащения и последующего прокаливания.
Nanodiamonds (NA) are a unique material that combines the properties of diamond and the advantages of nanostructures, and the detonation method of its production rightfully belongs to a promising type of basic technologies. The paper investigated diamond and carbon nanostructures of experimental and industrial detonation synthesis, obtained both from explosives (BB) and from a mixture of explosives with carbon additives. The issues of formation of NA in the zone of chemical reactions and the influence of mass-energy and kinetic parameters of BB on the phase composition, microstructure and granularity of NA were considered. The evolution of their changes, both in the primary synthesis products and during subsequent enrichment, is shown. In practice, changes in the microstructure are manifested in an increase in the size of the crystallite and grain in the process of enrichment and subsequent calcination.
ULTRASONIC TECHNOLOGICAL APPARATUS WITH FIVE WORKING TOOLS OF DIFFERENT DIAMETERS FOR SCIENTIFIC RESEARCH
Authors: Хмелёв В.Н. , Барсуков Р.В. , Барсуков А.Р. , Цыганок С.Н. , Нестеров В.А. 
Published: September 2022

Статья посвящена созданию ультразвукового аппарата, предназначенного для широкого спектра научных и прикладных исследований в биологии, микробиологии, молекулярной биологии, биохимии, химии, токсикологии, для гомогенизации клеток и клеточных культур в биохимии, микробиологии, почвоведении и исследованиях полимеров, способного обеспечивать УЗ обработку различных по структуре и свойствам жидкостей и жидкодисперсных сред в различных по размерам технологических объемах (от 1 мл до 1 л) с интенсивностью до 50 Вт на см2. Аппарат комплектуется пятью сменными рабочими инструментами различного диаметра 1,5 мм, 4,5 мм, 7 мм, 10 мм и 18 мм. Для снижения уровня звукового давления, исключения разбрызгивания обрабатываемых материалов, защиты оператора в комплект аппарата входит звукоизоляционная камера.
Abstract – The article is devoted to the creation of an ultrasonic apparatus capable of providing ultrasonic processing of liquids and liquid-dispersed media of various structures and properties in technological volumes of various sizes (from 1 milliliter to 1 liter) with an intensity of up to 50 W per cm2. The apparatus is intended for a wide range of scientific and applied research in biology, microbiology, molecular biology, biochemistry, chemistry, toxicology, for homogenization of cells and cell cultures in biochemistry, microbiology, soil science and polymer research. It comes with five interchangeable working tools of different diameters 1.5 mm, 4.5 mm, 7 mm, 10 mm and 18 mm. To reduce the level of sound pressure, prevent splashing of processed materials, and protect the operator, the machine is equipped with a soundproof chamber.
TOXICITY OF A POTENTIAL INSECTICIDE AND FUNGICIDE TO ASPERGILLUS NIGER AM1, AND THE ABILITY OF THIS STRAIN TO SOLUBILISE PHOSPHATE
Authors: Миндубаев А.З. , Бабынин Э.В. , Ахмедова Г.Р. 
Published: September 2022

Для того, чтобы подтвердить родство с известными солюбилизаторами фосфатов, мы исследовали способность Aspergillus niger АМ1 метаболизировать ортофосфат кальция – наиболее расространенную форму фосфора в природе, но при этом малодоступную для живых организмов. Установлено, что штамм потребляет нерастворимый фосфат так же легко, как растворимые фосфаты, входящие в состав культуральных сред. То есть, действительно является солюбилизатором фосфата, как следует из анализа базы National Center for Biotechnology Information (NCBI). Возможно, именно эволюционная адаптация к нехватке доступного фосфора стала причиной способности микроорганизма потреблять целый ряд биологически недоступных форм данного элемента. На алкилборатах гриб растет только в присутствии глюкозы, а полиаспарагиновая кислота не оказывает на него токсическое действие. Также, A. niger АМ1 при росте на глюкозе вырабатывает этанол.In order to confirm their kinship with known phosphate solubilizers, we analyzed the ability of Aspergillus niger AM1 to metabolize calcium orthophosphate, the most abundant form of phosphorus in nature, yet inaccessible to living organisms. Interestingly,the strain consumed insoluble phosphate as easily as soluble phosphates in culture media, thus confirming the of the National Center for Biotechnology Information (NCBI) database analysis. Possibly, the evolutionary adaptation to the shortage of available phosphorus caused the ability of the microorganism to consume a number of biologically inaccessible forms of this element. The fungus grows on alkylborates only in the presence of glucose, and polyaspartic acid has no toxic effect on it. Additionally, A. niger AM1 produces ethanol when growing on glucose.
APPLICATION OF OIL SORBENTS AND MYCORRHIZAL FUNGI FOR OIL-CONTAMINATED LAND TREATMENT
Authors: Карапетян К.Г. , Дорош И.В. , Собянина Д.О. , Нафикова Э.В. 
Published: September 2022

Статья посвящена вопросам применения сорбентов с добавлением биодеструкторов микоризы при рекультивации нефтезагрязненных земель и ликвидации аварийных разливов нефти. В работе проанализированы уже существующие сорбенты и их интеграция в совокупности с добавлением микроорганизмов; определены проблемы разработки модификационных сорбентов. На базе Уфимского государственного авиационного технического университета проведена экспериментальная часть по оценке совместного применения сорбентов и микоризы. Для определения эффективности применения сорбентов и микоризы использовали 2 основных критерия: по всхожести семян и по изменению значений корня и стебля. Результаты по 1-му критерию оказались противоречивыми у сорбентов Profsorb-Ind и Profsorb-Ultra. Причиной такого противоречия может быть ограниченный период действия микоризы. По 2-му критерию эффективность совместного применения сорбентов и микоризы увеличила резистентность значений ростков овса (стебля/корня и внешнего вида) в 1,5 раза. Для повышения эффективности очистки почвогрунтов предложено использовать сорбент на основе вспененных фосфатных стекол, обработанных микоризой. Использование стеклообразных фосфатных сорбентов и микоризы позволит усилить эффективность не только сорбента, но и провести ускоренную рекультивацию. Преимуществом данных сорбентов является их уникальная поверхность и состав, благодаря которой возможно развитие питательной среды для микроорганизмов.
The article is devoted to the application of sorbents with the addition of mycorrhizal biodegraders in the remediation of oil-contaminated land and the elimination of accidental oil spills. The paper analyzes the already existing sorbents and their integration in combination with the addition of microorganisms; the problems of development of modifying sorbents are defined. Based on the Ufa State Aviation Technical University an experimental part to evaluate the joint application of sorbents and mycorrhiza was carried out. To determine the effectiveness of using sorbents and mycorrhiza used two main criteria: by seed germination and by changes in root and stem values. The results according to the first criterion were inconsistent in Profsorb-Ind and Profsorb-Ultra sorbents; the reason for this contradiction may be a limited period of mycorrhiza action. According to the second criterion, the effectiveness of combined use of sorbents and mycorrhiza increased the resistance values of oat sprouts (stem/root and appearance) by 1.5 times. The sorbent based on foamed phosphate glasses treated with mycorrhiza was proposed to increase the efficiency of soil cleaning. The use of glass phosphate sorbents and mycorrhiza will allow increasing not only the efficiency of the sorbent but also to carry out accelerated reclamation. The advantage of these sorbents is their unique surface and composition, due to which it is possible to develop a breeding ground for microorganisms.
Application of high-intensity ultrasonic exposure for coagulation of fog droplets
Authors: Доровских Р.С. , Пужайкина А.Е. 
Published: September 2022

Статья посвящена исследованию влияния ультразвукового воздействия на капли тумана с целью их коагуляции и уменьшения времени осаждения. Для проведения исследований был создан экспериментальный стенд, который позволяет создать имитацию природного радиационного тумана с размером капель 5 мкм. Стенд представляет собой цилиндрическую камеру с внутренним объёмом 1,5 м3. С торца камеры установлен ультразвуковой изгибно-колеблющийся излучатель, обеспечивающий средний уровень звукового давления в камере 147 дБ. Проведенные исследования позволили установить, что за 350 секунд УЗ воздействие позволяет обеспечить метеорологическую дальность видимости равную 680 метрам. За это же время естественное разрушение тумана обеспечивает метеорологическую дальность видимости равную 100 метров. Анализ полученных данных позволяет сделать вывод, что применение более мощных УЗ излучателей позволит существенно сократит время разрушения воздушно-капельных дисперсий. Выявлено, что формируемый во всей озвучиваемой области уровень звукового давления равный 147 дБ является достаточным для разрушения воздушно-капельной дисперсии.
The article is devoted to the study of the effect of ultrasonic exposure on fog drop in order to coagulation and reduces deposition time. To conduct research, an experimental stand was created, which allows you to create an imitation of a natural radiation fog with a particle size of 5μm. The stand is a cylindrical chamber with an internal volume of 1.5 m3. An ultrasonic bending-oscillating emitter is installed at the end of the chamber, providing an average sound pressure level in the chamber of 147 dB. Studies have established that in 350 seconds the ultrasonic effect allows to provide a meteorological visibility range equal to 680 meters. During the same time, the natural deposition of fog particles provides a meteorological range of visibility equal to 100 meters. Analysis of the data obtained allows us to conclude that the use of more powerful ultrasonic emitters will significantly reduce the time of destruction of airborne dispersions. It was revealed that the sound pressure level formed in the entire voiced area equal to 147 dB is sufficient to destroy the airborne dispersion.
¿Crisis económica o economía en crisis? Relaciones ortodoxia-heterodoxia en la transición digital
Authors: Sánchez-Bayón Antonio 
Published: September 2022

Revisión crítica y comparada sobre las relaciones ortodoxia-heterodoxia económica durante la implantación del positivismo formalista, cuyo instrumentalismo y matematización ha restado realismo y capacidad de adaptación a los grandes cambios. Dado su agotamiento, urge su reformulación tras la Gran recesión, que no fue capaz de predecir, y ante la economía digita, que no es capaz de modelizar. Se recurre para ello los marcos teóricos y metodológicos de los enfoques heterodoxos de fundamentos alternativos y compatibles entre sí, al servir de opción adaptadora a la nueva realidad social y guía en la transición paradigmática.
Analyzing the Effect of Basic Data Augmentation for COVID-19 Detection through a Fractional Factorial Experimental Design
Authors: Hidalgo Davila Mateo , Baldeon-Calisto Maria , Murillo Juan Jose , Puente-Mejia Bernardo , Navarrete Danny , Riofrío Daniel , Peréz Noel , Benítez Diego S. , Flores Moyano Ricardo 
Published: September 2022

The COVID-19 pandemic has created a worldwide healthcare crisis. Convolutional Neural Networks (CNNs) have recently been used with encouraging results to help detect COVID-19 from chest X-ray images. However, to generalize well to unseen data, CNNs require large labeled datasets. Due to the lack of publicly available COVID-19 datasets, most CNNs apply various data augmentation techniques during training. However, there has not been a thorough statistical analysis of how data augmentation operations affect classification performance for COVID-19 detection. In this study, a fractional factorial experimental design is used to examine the impact of basic augmentation methods on COVID-19 detection. The latter enables identifying which particular data augmentation techniques and interactions have a statistically significant impact on the classification performance, whether positively or negatively. Using the CoroNet architecture and two publicly available COVID-19 datasets, the most common basic augmentation methods in the literature are evaluated. The results of the experiments demonstrate that the methods of zoom, range, and height shift positively impact the model's accuracy in dataset 1. The performance of dataset 2 is unaffected by any of the data augmentation operations. Additionally, a new state-of-the-art performance is achieved on both datasets by training CoroNet with the ideal data augmentation values found using the experimental design. Specifically, in dataset 1, 97% accuracy, 93% precision, and 97.7% recall were attained, while in dataset 2, 97% accuracy, 97% precision, and 97.6% recall were achieved. These results indicate that analyzing the effects of data augmentations on a particular task and dataset is essential for the best performance. Doi: 10.28991/ESJ-2023-SPER-01 Full Text: PDF
Data Driven Models for Contact Tracing Prediction: A Systematic Review of COVID-19
Authors: Muthaiyah Saravanan , Zaw Thein Oak Kyaw , Anbananthen Kalaiarasi Sonai Muthu , Park Byeonghwa , Kim Myung Joon 
Published: September 2022

The primary objective of this research is to identify commonly used data-driven decision-making techniques for contact tracing with regards to Covid-19. The virus spread quickly at an alarming level that caused the global health community to rely on multiple methods for tracking the transmission and spread of the disease through systematic contact tracing. Predictive analytics and data-driven decision-making were critical in determining its prevalence and incidence. Articles were accessed from primarily four sources, i.e., Web of Science, Scopus, Emerald, and the Institute of Electrical and Electronics Engineers (IEEE). Retrieved articles were then analyzed in a stepwise manner by applying Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISM) that guided the authors on eligibility for inclusion. PRISM results were then evaluated and summarized for a total of 845 articles, but only 38 of them were selected as eligible. Logistic regression and SIR models ranked first (11.36%) for supervised learning. 90% of the articles indicated supervised learning methods that were useful for prediction. The most common specialty in healthcare specialties was infectious illness (36%). This was followed closely by epidemiology (35%). Tools such as Python and SPSS (Statistical Package for Social Sciences) were also popular, resulting in 25% and 16.67%, respectively. Doi: 10.28991/ESJ-2023-SPER-02 Full Text: PDF
Does National Governance Affect the Capital Structure of Listed Firms during the COVID-19 Pandemic?
Authors: Nguyen Kim Quoc Trung 
Published: September 2022

This study estimates the macro-economic factors affecting the listed small and medium enterprises' capital structures in Vietnam from 2010 to 2020. The author conducts the quantitative method (generalized method of moments—GMM) with valid instrument variables to solve the endogeneity in regression models, which refers to the determinants of capital structures. Based on the trade-off theory and the pecking order theory, the author provides evidence of macro-economic factors and firm-specific factors in explanations for the capital choices of the Vietnamese firms, including national governance, inflation, COVID-19, firm age, and asset structure. In particular, this study highlights how national governance and COVID-19 influence the capital structure of small and medium enterprises in Vietnam. Doi: 10.28991/ESJ-2023-SPER-04 Full Text: PDF
Pentingnya Implementasi Pembelajaran Berbasis Android dalam Mengembangkan Kemampuan Kognitif Siswa Kelas Tinggi Sekolah Dasar
Authors: Surya Adi Darma 
Published: September 2022

Perubahan dan perkembangan senantiasa terjadi, sehingga diperlukan upaya untuk beradaptasi agar tidak mengalami ketertinggalan.Salah satu upaya yang dapat dilakukan adalah dengan memanfaatkan ITdalam pembelajaran berbasis Android antara lain dengan memanfaatkan gawai masing-masing siswa guna menunjang pembelajaran khususnya siswa kelas tinggi sekolah dasar. Penulisan artikel ini bertujuan untuk menginformasikan mengenai pentingnya mengimplementasikan pembelajaran berbasis Android untuk siswa kelas tinggi sekolah dasar, manfaat yang ditimbulkan khususnya pada perkembangan kemampuan kognitif serta berbagai cara yang dapat dilakukan dalam melaksanakan pembelajaran berbasis Android. Penulisan artikel ini menggunakan pendekatan kepustakaan (literature review) dengan menggunakan data sekunder yang diperoleh dari berbagai data hasil penelitian. Hasil penelitian didapatkan bahwa secara umum gawai yang digunakan adalah berbasis Android karena dinilai lebih mudah dalam pengoperasiannya. Melalui pembelajaran berbasis Andorid siswa akan lebih mudah mengakses segala hal yang terkait dengan materi pembelajaran dan akan menjadi sumber belajar mandiri bagi siswa. Dengan demikian, pembelajaran berbasis Android akan dapat mengembangkan kemampuan kognitif siswa secara maksimal terutama pada siswa usia sekolah dasar
Winegrowing and Winemaking in Russia: The Late Nineteenth Century to October 1917
Authors: Häfner Lutz K. 
Published: September 2022

Abstract
The article focuses on winegrowing, winemaking and wine consumption in Russia before October 1917. At the turn of the century, there were two competing narratives on Russian viticulture: the first posited viticulture as prosperous with a radiant future; the second asserted a fundamental crisis in viticulture. This article explores the extent to which war and revolution helped undermine the foundations of viticulture and the wellbeing of winegrowers. It argues that, although war and revolution had deleterious effects on viticulture, structural deficits (such as a pronounced lack of financial capital, technical knowledge) as well as consumer preferences undercut the industry.
Коммеморации столичного университета (1819–1919)
Authors: Ростовцев (Evgenii Anatol’evich Ros Евгений Анатольевич 
Published: September 2022

Абстракт
Статья рассматривает официальные коммеморации столичного университета – годичные акты – в контексте социальной истории и историографии Санкт- Петербургского университета. Раскрывается механизм влияния коммемора- тивных практик на формирование основных корпоративных и общественных представлений о ключевых этапах и событиях университетской истории. В тек- сте показано, как в рамках юбилейных нарративов происходило формирование официальной и либеральной/освободительной версий истории университета.