bluuebunny/crossref_metadata_2025 huggingface dataset:
Forecasting the Disturbance Storm Time Index with Bayesian Deep Learning
Authors: Abduallah Yasser , Wang Jason T. L. , Bose Prianka , Zhang Genwei , Gerges Firas , Wang Haimin
Published: May 2022

The disturbance storm time (Dst) index is an important and useful measurement in space weather research. It has been used to characterize the size and intensity of a geomagnetic storm. A negative Dst value means that the Earth's magnetic field is weakened, which happens during storms. In this paper, we present a novel deep learning method, called the Dst Transformer, to perform short-term, 1-6 hour ahead, forecasting of the Dst index based on the solar wind parameters provided by the NASA Space Science Data Coordinated Archive. The Dst Transformer combines a multi-head attention layer with Bayesian inference, which is capable of quantifying both aleatoric uncertainty and epistemic uncertainty when making Dst predictions. Experimental results show that the proposed Dst Transformer outperforms related machine learning methods in terms of the root mean square error and R-squared. Furthermore, the Dst Transformer can produce both data and model uncertainty quantification results, which can not be done by the existing methods. To our knowledge, this is the first time that Bayesian deep learning has been used for Dst index forecasting.
Sensitivity Analysis of a BERT-based scholarly recommendation system
Authors: Zhu Jie , Wu Hulin , Yaseen Ashraf
Published: May 2022

With the exponential growth of publicly available datasets, a scholarly recommendation system of datasets would be an essential tool in the field of information filtering. Recommending datasets to users can be formulated as a classification problem where deep learning models can be carefully trained. In such a case, when preparing training data for the learning models, one needs to consider different ratios of false and true pairs. Therefore, a sensitivity analysis is necessary. In this work, we conduct a sensitivity analysis using different class ratios on a deep learning model (BERT) for recommending datasets. We found out that our BERT-based recommender model is relatively robust using recommender metrics such as Mean Reciprocal Rank (MRR)@k, Recall@k, etc., except for the extreme class imbalance case (1:5000). Therefore, we conclude that a moderate ratio of the random negative sampling scheme, (in our case 1:10) is reasonable, sufficient and time-efficient in the recommendation system training
Vision-Based American Sign Language Classification Approach via Deep Learning
Authors: Elsayed Nelly
Published: May 2022

Hearing-impaired is the disability of partial or total hearing loss that causes a significant problem for communication with other people in society. American Sign Language (ASL) is one of the sign languages that most commonly used language used by Hearing impaired communities to communicate with each other. In this paper, we proposed a simple deep learning model thataims to classify the American Sign Language letters as a step in a path for removing communication barriers that are related to disabilities.
Integration of Multivariate Beta-based Hidden Markov Models and Support Vector Machines with Medical Applications
Authors: Manouchehri Narges , Bouguila Nizar
Published: May 2022

In this paper, we propose a novel hybrid discriminative generative model by integrating a modified version of hidden Markov model (HMM), multivariate Beta-based HMM with support vector machine (SVM). We apply Fisher Kernel to define decision boundary and separate classes. In this model, we assume that HMM emission probabilities follow a Beta mixture model as generalizing the assumption of Gaussianity may not be practical in modeling real-world applications. HMM as a generative model needs less amount of data however, its accuracy is less than discriminative models such as SVM. Moreover, in some applications, data may have various feature-length. We tackle this problem with Fisher Kernel. We apply our proposed model to medical applications, lung cancer detection, colonoscopy image, and colon tissue analysis. The results indicate that our proposed model could be a promising alternative.
A Hierarchical Goal-Biased Curriculum for Training Reinforcement Learning
Authors: Patra Sunandita , Cavolowsky Mark , Kulaksizoglu Onur , Li Ruoxi , Hiatt Laura , Roberts Mark , Nau Dana
Published: May 2022

Hierarchy and curricula are two techniques commonly used to improve training for Reinforcement Learning (RL) agents. Yet few works have examined how to leverage hierarchical planning to generate a curriculum for training RL Options. We formalize a goal skill that extends an RL Option with state-based conditions that must hold during training and execution. We then define a Goal-Skill Network that integrates a Hierarchical Goal Network, a variant of hierarchical planning, with goal skills as the leaves of the network. An automatically generated plan for a Goal-Skill Network correctly orders goal skills such that (1) it is a Goal-Biased Curriculum for training the goal skills, and (2) it can be executed to achieve top-level goals. In a set of six distinct gridworld environments using up to ten goal skills, we demonstrate that these contributions train nearly perfect policies significantly faster than learning a whole policy from scratch.
Modern kumulatív töltet méretezésének lehetőségei
Authors: Ember István
Published: May 2022

A cikkben vizsgálat alá veszem a lehetséges méretezési eljárásokat, amelyek segíthetik egy modern kumulatív töltet kialakítását. A hagyományos eljárások alapvetően fém béléstestekkel szerelt töltetekre vonatkoznak, de részben megfelelők lehetnek. A korábbi kutatások, amelyek során különböző polimereket és kompozitokat vizsgáltak, jó alapjai az elemzésnek. A kutatók eredményeiben azonban található néhány ellentmondás, amelyek tisztázása kulcsfontosságú lehet a további lehetőségek tükrében. Az elemzés során meghatároztam azokat az anyagokat, amelyek szintén további vizsgálat részét fogják képezni egy modern, a tűzszerész szakfeladatokhoz alkalmas kumulatív töltet kialakításakor.
Hidak a magyar–jugoszláv határon
Authors: Tóth Ferenc , Kovács Zoltán
Published: May 2022

A Dráva és a Mura folyókon átívelő vasúti és közúti hidak évszázadokon keresztül a kapocs szerepét töltötték be, országokat, népeket, családokat, kultúrákat kötöttek össze. Lerombolásuk gyászt és szomorúságot, az (újjá)építésük pedig reményt és örömöt hozott. A szerzők a déli határhidak történetével kapcsolatos jelentősebb eseményeket villantják fel az alábbi írásukban.
Preparation for Transport Accidents of Dangerous Goods by Inland Waterways at the Establishments Involving Dangerous Substances
Authors: Balogh Róbert
Published: May 2022

An important condition for the elimination of accidents during the transport of dangerous goods by inland waterway is the existence of appropriate legal rules. The unloading and loading of hazardous goods in ports as a hazardous plant involves a high risk. Internal safety planning enables operators of dangerous establishments with a port to be prepared for the prevention, elimination and mitigation of major accidents involving dangerous substances during the transport of dangerous goods at the premises. In the present study, the author will address this scientific problem in detail.
Machines and Human Epistemology
Authors: Demin T. S. , Frolov K. G.
Published: May 2022

Introduction.The article analyzes the structure of the epistemology of knowledge of weak artificial intelligence in comparison with the structure of human knowledge. The article was written within the framework of one of the most demanded branch sections of philosophy – the philosophy of artificial intelligence. The novelty of the research is based on the idea of applying the analysis of knowledge developed within the framework of analytical epistemology to the field of artificial intelligence.

Methodology and sources.The article is written in the framework of analytical tradition in philosophy. We use conceptual analysis to analyze the most crucial aspects of knowledge. This method assumes that in order to explain a complex phenomenon, it is necessary to analyze its components. This method formed the basis of an analytical discussion about knowledge in the second half of the 20th century. The article also uses comparative analysis.

Results and discussion.People's knowledge is characterized by three essential characteristics – the presence of information-bearing mental states, their reliability, and factuality. We analyzed to what extent the information-carrying internal states of a weak AI correspond to these qualities. The authors concluded that internal states can be considered beliefs if they are weakly interpreted, they can have a high degree of reliability under certain conditions, and they can have factuality if we accept that a weak AI has beliefs.

Conclusion.A weak interpretation of the concept of belief allows us to argue that neural networks are capable of having beliefs. A more rigorous interpretation of the concept of belief also includes the requirement to understand the meaning. However, we do not have at our disposal a satisfactory theory of understanding meaning. In this case, the condition of reliability is the only criterion of knowledge to which the functional states of machines can correspond in the case of certain tasks, in connection with which the problem of generality arises especially acutely.
The Historical Space-Time Continuum as an Anthropological Phenomenon
Authors: Sirotkin Yu. L.
Published: May 2022

Introduction. The problem of human being as a subject of the historical space-time continuum is actualized by social transformations and the change of types of rationality. The anthropological nature of space-time determines the interest in reflection on human being as a historical individual. We could note an increased interest in spatial and temporal problems in Russian philosophical thought in the realities of the 20th century. The perception of historical time in its daily eventfulness brings us closer to understanding the fate of society in this period of Russian history that cannot be unambiguously assessed.

Methodology and sources. The author relied on the provisions of philosophical anthropology about the human dimension of historical time and space. The initial basis of the research was the provisions of the author's concept of the unity of a human being and the space-time continuum. The anthropological content of historical space-time analytics predetermined the use of systemic, culturological and axiological approaches. The system approach has determined the application of source studies, phenomenological and hermeneutic analysis of the studied phenomena.

Results and discussion. The importance of anthropocentrism for understanding historical individuality is substantiated. The author made an attempt to overcome the extremes of the anthropocentric and progressive models of the historical process on the basis of the unity of anthropocentrism, cultural centrism and sociocentrism. History is revealed as the time and space of self-realization of its subjects. The understanding of history is derived from a person's ability to experience and organize events. Also in the article is stated the necessity of incorporation of personal time and private space into the historical process as its constructs. It is shown that the knowledge of history is the result of the identification of I and We.

Conclusion. The author reveals the thesis about human being as a historical personality. The anthropological nature of historical space-time determines the meanings, contributes to the ordering of everyday events by the subjects of history, provides an opportunity to determine the vector of cognition of history.
Corruption as a Social Problem: a Constructionist Approach
Authors: Kovtun E. A.
Published: May 2022

Introduction. The article provides an overview of the constructionist approach in sociology in the concerning the phenomenon of corruption as a social problem. The relevance of the work is determined by the need to examine the possibilities of sociology in the study of anti-corruption discourse and the construction of corruption in the public consciousness.

Methodology and sources. The issue has grown in importance considering the need to study the perception of corruption in society and the processes of its construction. The methodological basis of the work is the analysis of primary sources (works by M. Spektor, J. Kitsuse, J. Best) and research publications, including the retrospective analysis of the theoretical prerequisites for the development of a constructionist approach in the sociology of social problems. This paper gives a detailed overview of the concept of social problems, which is important for the development of theoretical and empirical studies of various social problems from constructionist positions.

Results and discussion. The paper presents the features of two directions within the framework of social constructivism: strict and contextual. The author identifies two main areas of corruption research in a constructionist discourse: the analysis of the construction of corruption as a social phenomenon and the analysis of the construction of deviance, which correspond to the phenomenological (strict) and contextual directions. This study defines the main theoretical aspects of the constructivist approach, its ideological prerequisites and traces the development of the main theoretical directions of constructivism within the interactionist approach in sociology. As a result of the analysis, the author highlights the limitations of the constructionist approach, which are significant for choosing a concept and conducting research and pays attention to the possibilities of developing an integrative approach.

Conclusion. Social constructivism has heuristic potential in exploring the discourse of corruption as a social problem and the construction of its deviance, which is a promising area of research on the perception of corruption in modern Russian society.
Linguistic Data Model for Natural Languages and Artificial Intelligence. Part 7. Internal logic 2 Oleg M. Polyakov
Authors: Polyakov O. M.
Published: May 2022

Introduction. The article continues a series of publications on the linguistics of relations (hereinafter referred to as R-linguistics) and is devoted to the study of the functioning of logical connectives with nouns and adjectives. The article is the second part of the discussion of internal logic, which examines the use of logical connectives within sentences. This research involves the formation of semantic logic, that is, logic that takes into account the semantics of sentences.

Methodology and sources. The results obtained in the previous parts of the series are used as research tools. To develop the necessary mathematical representations in the field of internal logic, the previously formulated semantic concepts and operations are used.

Results and discussion. Two types of negation are introduced and their properties are defined. The properties of the linguistic model are formulated. The use of logical connectives with nouns and adjectives is analyzed. It is shown that the connective NOT can be attributed to both external and internal logic. The connectives AND and OR do not have a logical content, but serve to identify the state of a particular concept. Three semantic substitutions are defined. The reasons for the stability of semantic interpretation when changing the state of relations are substantiated.

Conclusion. Abandoning the traditional view of natural language logic means abandoning logical operations and inference. This forces us to consider logical operations that now take into account semantics, since they are related to the structure of the linguistic model. Analysis of the functioning of logical connectives with nouns and adjectives shows that they either provide identification of the state of concepts, or can be transferred to external logic, or can operate within the framework of a linguistic model. The formulated substitution rules provide semantically correct substitutions and justify the stability of semantic interpretation in the conditions of changing states of concepts.
Assessment of airborne fungi from animal establishments in and around Kolkata, West Bengal
Authors: Bhattacharyya Sayan , Dighe Prashil , Ruchi Ruchi , Raj Atul , Banik Amit , Chattopadhyay UK
Published: May 2022

Background: Airborne transmission of pathogenic Fungi to humans from the environment, animals, or other humans are very common and cause various disease like Aspergillosis, aspergilloma (fungus ball), allergic sinusitis, and allergic bronchopulmonary disease, Flu-like illness, chronic lung disease etc.  Materials and methods: The present study was conducted to analyze fungi present in around the environment of local meat market, fish market and farms. This was determined through air quality sampling using the ‘Settle plate technique’ using SDA agar plate and were analyzed at 37°C and 25°C after incubation using Lactophenol cotton blue mount. Results: The highest number of fungi were isolated from farms (37%) followed by chicken shop (24%) , Mutton shop(23%)  and fish shops(16%). Aspergillus flavus(21%) was prominent in chicken shop while AspergIllus fumigatus(19%)  was prominent in Mutton shop. Fusarium (19%) and Rhizopus spp.(18%) were prominent in farm air. Conclusion: The study is significant from One health point of view and stresses the importance of proper ventilation , sanitation and importance of sunlight in order to minimize load of fungi in air.
Dous capítulos XXV e XXVI do tomo segundo do Don Quixote de la Mancha por Miguel de Cervantes Saavedra
Authors: Cervantes Miguel de
Published: May 2022

Co gallo das festas da Rosa del Azafrán, o Concello de Consuegra quixo dedicar un muiño á memoria e honra de Miguel de Cervantes Saavedra. E como o Concello de Consuegra fai mentes de acadar nese muíño a maior cantidade posible de versións da obra cervantina en todos os idiomas que houber, dirixiuse á Excma. Deputación Provincial da Coruña, en solicitude de calquera exemplar que for publicado na lingua galega. A Deputación pasou a solicitude á Real Academia Galega, e esta encargoulle a Leandro Carré unha tradución para que poida figurar no muiño de Consuegra. O que aquí presentamos é o seu traballo.
A igrexa de Mondoñedo nas súas sinodais
Authors: Arauxo Iglesias Miguel Anxo , Piñeiro Ramón
Published: May 2022

Discurso lido no acto da súa recepción polo ilustrísimo señor don Miguel Anxo Arauxo Iglesias e resposta do excelentísimo señor don Ramón Piñeiro. O solemne acto académico no que foron lidos os dous discursos recolleitos no presente volume celebrouse o día 30 de maio de 1980 no Salón de Actos da Real Academia Galega.
Gli archivi tedeschi durante la crisi da Covid-­19
Authors: Hedwig Andreas
Published: May 2022

La crisi del Coronavirus ha rappresentato una notevole sfida per gli archivi tedeschi. Tuttavia, questi hanno adattato la loro comunicazione interna e i loro compiti d'archivio tradizionali abbastanza rapidamente e con successo alle condizioni della pandemia. Per contro, la conservazione del materiale, l'uso pubblico e la mediazione sono state limitate. Gli utenti, dopo la proclamazione dello stato di pandemia, si sono adattati solo gradualmente a sostituire le visite alle sale di lettura con un uso più intenso dei servizi internet, cioè più richieste di ricerca e più ordini di copie digitali del materiale d'archivio. Gli archivi hanno spostato su internet le offerte di eventi e pubblicazioni, cosìcche le potenzialità dei social media sono state usate più intensamente. Nel complesso, la crisi del Coronavirus ha dato agli archivi tedeschi una notevole spinta verso il digitale.
Elements of Online Advertisements: Its Impact on Late Generation Z’s Purchase Intention
Authors: Mergillano Mark Ryan , Nabor Bryan Gabriel , Halili Rhixonn Rourkee , Hinanay Kristian George , Grimaldo Jun R.
Published: May 2022

Online advertising is considered as one of the most popular forms of communication in persuading consumers to purchase a product. It asks the question of how an advertisement becomes well-written or well-processed. Correspondingly, many factors contribute to making an online advertisement a successful process. In this light, the researchers aim to determine the influence of the different elements of online advertisements on Late Generation Z's purchase intention. To be more particular, the researchers focused on several factors, such as (1) advertising appeals, (2) visual and verbal elements, and (3) social media platforms. The methods utilized in gathering the data in this study were through Google Forms as there were constraints to physical contact due to the COVID-19 pandemic. After assessing the necessary data for this study, the researchers have found that some elements of online advertisements are always significant to Late Generation Z. To be more specific, some of these elements are as follows: (1) the brand logo’s overall style and background meaning, (2) the informativeness and credibility of an advertisement, (3) the authenticity of an advertisement, and lastly, (4) the credibility of social media platforms in terms of purchasing products and services. The study intends to fill the gap in this domain to help advertising companies, businesses, marketers, and researchers fully maximize the potential of online advertisements.
Carbono orgánico del suelo en rodales silvícolas del ejido La Victoria, Pueblo Nuevo, Durango
Authors: Solís Hernández Adalberto , Nájera Luna Juan Abel , Méndez González Jorge , Vargas Larreta Benedicto , Álvarez Gallegos Manuel
Published: May 2022

El objetivo de esta investigación fue cuantificar el carbono orgánico almacenado en el suelo del ejido La Victoria, Pueblo Nuevo, Durango. Muestras de suelo se colectaron en 108 sitios distribuidos en tres calidades de sitio, tres tratamientos silvícolas y tres profundidades de suelo. La determinación del contenido de carbono orgánico se realizó a través del método de Walkley y Black. Para identificar diferencias significativas de contenido de carbono orgánico en el suelo por calidad de estación, tratamiento silvícola y profundidad del suelo se realizaron análisis de varianza y comparación de medias mediante pruebas de Tukey al 95%. Los resultados mostraron un promedio de contenido de carbono orgánico en el suelo de 58.10 mg ha-1 y fue posible observar un aumento del carbono conforme mejora la calidad de estación. Los tratamientos silvícolas fueron no significativos y la tendencia mostrada fue una disminución del carbono orgánico conforme aumenta la profundidad del suelo.
artículo de revisión sistemática como vehículo de escritura, investigación y publicación en ingeniería
Authors: Pérez Rave Jorge Iván
Published: May 2022

Diversos estudios concluyen que hay poco vínculo entre la investigación científica y la formación universitaria. La literatura reporta que no necesariamente aprobar cursos es lo mismo que saber investigar. Se proveen reflexiones sobre la eficacia de los procesos de formación del futuro investigador. El objetivo es aportar insumos para una mejor comprensión del saber investigar en el ámbito de la ingeniería, a partir de ese saber escribir que es indivisible de otros saberes. El artículo de revisión sistemática es propuesto como posible medio de transformación del individuo, de generación de conocimiento y de producción investigativa; todos ellos, sin considerarse una meta, sino más un proceso a lo largo de la vida.
Bringing the Latvian Youth Back to Political Participation
Authors:   Rīga Stradiņš University, Graudiņa Elīna
Published: May 2022

After the collapse of the Soviet Union, and in the fi rst democratic national elections of 1993, voter turnout in Latvia was 89.9 per cent. However, by the late 90s, participation levels had signifi cantly decreased. Scholars have pointed out that this decrease was a result of people gradually learning the limits of democratic governance while tackling the feeling of political powerlessness and decreasing trust in politicians and political institutions – all of which have had negative effects on civil society and democratic ideals. Youths in particular were affected by the sum of all this, seeing, first-hand, income inequality, economic stagnation, corruption, and personal unemployment (or that of their parents). All this, combined with a lack of democratic traditions, has resulted in scepticism and political apathy. This paper shows that, since 2009, Latvia has seen a decrease in all forms of political participation, including a share of its youths who run as MP candidates in elections. The paper aims to clarify what would help bring Latvian youths back into politics.
Insurance: Trends of Use in the Republic of North Macedonia
Authors:   University of Tetova, Shabani Faton
Published: May 2022

Insurance supports a healthy and prosperous society, enabling businesses and individuals to protect themselves, property, and their finances against risk. As such, insurance today is not just important for the individual consumer, business client or businesses; it also has consequences for the entire economy, restoring businesses to health after natural disasters, acts of war, riots, strikes, fl uctuations or financial crises, and state measures to dictate the import or export of goods. The aim of this paper is to examine the part played by insurance in the economy of the Republic of North Macedonia. This paper introduces and summarises an argument and outlines the nature of the exploration to follow. For this introductory purpose, referencing in the paper is kept deliberately light; aiming to find discussion points of relevant sources in the course of the argument as it unfolds. We argue that insurance operates not at the periphery, but also at the core of development, in both practical and conceptual terms. Research of the space that insurance occupies and the role that insurance has in general welfare is performed by using the legal platform that insurance has in place, including the Law on Obligations, the Law on Insurance Supervision, and the Law on Compulsory Traffic Insurance. Through the method of analysis, synthesis, and statistics, the author processes the official data of the Ministry of Finance presented by the National Bank, in order to provide a clear overview of the trends in the use of insurance in the Republic of North Macedonia. The results from the study show that in the time period analysed, the insurance sector is classifi ed as the third most important segment in the financial system, and that life insurance prevails over other types of insurance.
Фізичне моделювання мін та інженерних боєприпасів, адекватних за показником теплової інерції
Authors: Підгородецький М. , Куртсеітов Т. , Ясько В. , Ментус І.
Published: May 2022

Забезпечення реалізації державної політики у сфері протимінної діяльності та виконання міжнародних зобов’язань України у сфері протимінної діяльності передбачає вжиття заходів щодо розвитку засобів розвідки, пошуку, ідентифікації, знешкодження мін та вибухонебезпечних предметів.

Продукцією багатьох підприємств оборонно-промислового комплексу України є засоби пошуку, ідентифікації, знешкодження мін та вибухонебезпечних предметів. Вітчизняні розробники та виробники зазначених засобів для утримання свого положення на конкурентному ринку мають більше уваги приділяти розвитку своєї продукції, яка випускається та розробляється в найкоротші терміни. Рівень якості, терміни розробки та прийняття до випуску продукції на пряму залежить від терміну практичної апробації зразків.

Водночас розробники та виробники для адекватної практичної апробації зразків пошуку, ідентифікації, знешкодження мін та вибухонебезпечних предметів мають використовувати бойові міни, що не завжди можливо виконати розробниками та виробниками, які не мають допуску та доступу до роботи із вибуховими речовинами та інженерними боєприпасами у зв’язку з правовими регуляторними обмеженнями щодо поводження із зазначеними речовинами та засобами.

Тому тестування та експеримент зі зразками пошуку та ідентифікації, запропоновано проводити із використанням натурних (фізичних) моделей мін. В моделях мін на заміну вибухових речовин використовувати матеріали, фізичні властивості яких максимально відповідають натуральним. Адекватність моделювання є однією із властивостей, яка виражає ступінь відповідності моделі тому реальному об’єкту, для опису якого вона створюється та від якої залежить якість проведеного експерименту. Запропонований підхід щодо тестування та проведення експериментів із використанням фізичних моделей мін дозволить розширити коло учасників, які зможуть брати участь у розробці сучасних і вкрай необхідних засобів розвідки, пошуку, ідентифікації, знешкодження мін та вибухонебезпечних предметів.
Damage Characteristics of Argillaceous Quartz Sandstone Mesostructure under Different Wetting-drying Conditions
Authors: Deng Lixu , Yang Jianfei , Zhang Guodong , Zhang Yaxin , Chen Guangfu , Li Xijun
Published: May 2022

Extensive water–rock interaction in the Three Gorges Reservoir area of the Yangtze River leads to rock mass deterioration along the reservoir banks. However, mineral evolution behavior and its effect on the mesostructure deterioration of rocks under the wetting–drying cycle condition remain unknown. So, the wetting–drying cycle tests were conducted on peculiar argillaceous quartz sandstone in TGRA under neutral (pH = 7) and alkaline (pH = 10) water environments. Here, we provided detailed physical and microscopy images data to determine the control mechanism of mineral behavior on the evolution of sandstone’s mesostructure. Under the neutral condition, repeated “absorption and swelling–dehydration and contraction” of clay minerals leads to the repeated physical action of “squeezing–unloading” in the interior of a rock. This results in the initiation and gradual expansion of cracks in the framework mineral quartz, exhibiting failure mode from the interior to the exterior. In contrast, under the alkaline condition, the dissolution on the surface of quartz particles leads to the expansion and connection of pores, implying that the sandstone exhibits failure mode from the exterior to the interior. Moreover, the internal mechanical analysis indicates the minerals are at high pressure because of the expansion of clay minerals in the neutral solution. However, in an alkaline water environment, the extrusion pressure of framework mineral quartz decreases significantly and is not easily broken due to increased porosity. Thus, the evolution behavior of minerals in different water environments plays an important role in the damage of the rock.
Tratamento odontopediátrico das seqüelas da Síndrome Alcoólica Fetal em criança de 12 anos
Authors: Bueno Jaciane Expedita , Lima Ana Flávia Martins , Cunha Tereza Cristina Rodrigues da , Araújo Tatiany Gabrielle Freire
Published: May 2022

A síndrome alcoólica fetal (SAF) é uma condição de malformações causadas ao indivíduo que foi exposto ao álcool durante a fase gestacional. O consumo de álcool por mulheres vem crescendo, o que inclui o grupo de gestantes, e conseqüentemente aumenta o número de crianças com anomalias. Por isso é importante a prevenção, pois a SAF é totalmente evitável. Possui diagnóstico complexo através de características faciais e relato da própria genitora sobre o consumo de álcool, além de tratamento especializado e individualizado.  O objetivo deste trabalho é relatar o caso de um paciente de 12 anos de idade, gênero masculino, com a queixa da ausência dos incisivos inferiores. O mesmo apresentava agenesia dentária, além da anquiloglossia e características bucofaciais que levantam a hipótese diagnóstica da Síndrome Alcoólica Fetal, descrevendo através de uma revisão de literatura quais são os aspectos fenotípicos decorrentes da síndrome, abordando frente ao diagnóstico qual o plano de tratamento, as etapas cirúrgicas da frenectomia lingual e acompanhamento odontológico preconizado para o caso.
Modeling the effect of cage drag on particle residence time within fish farms in the Bay of Fundy
Authors: Wu Y , Law B , Ding F , O’Flaherty-Sproul M
Published: May 2022

Aquaculture farm cages have the ability to interact with local circulation due to the drag caused by the cages. We examined how the drag influences the residence time of particles within fish farms in the southwest Isles region of New Brunswick, Canada, in the Bay of Fundy using a high-resolution hydrodynamic model. To accomplish this, we parameterized the cage drag in the model and modeled flow structures at multiple spatial scales, ranging from several meters within the cages, to tens of kilometers in the adjacent open ocean. We used models with and without cage drag to demonstrate how residence time was influenced by the imposition of the cage infrastructure. Our examination indicated that the drag produced by cages is able to significantly change the residence time of particles. The magnitude of the change is strongly sensitive to the timing of tides, tidal speeds and specific locations of farms. Our results suggest that the flushing properties of the wastes from aquaculture activities—for example, feed and subsequently fecal material—are strongly related to flow properties and their interactions with cages. These results emphasize that the design of fish farms should explicitly account for the influence of physical infrastructure (i.e. cages) on depositional processes in order to try and minimize environmental effects.
Differences, Idiosyncrasies, and Shared Humanity: Reconceptualising Crossover Literature
Authors: Shi Xiaofei
Published: May 2022

Crossover literature, as a group of texts that attracts both children and adults, has drawn much attention since the 1990s. This article contextualises contemporary crossover texts against the backdrop of the book industry, the hybridising of child and adult cultures, and the paradigm shift in childhood studies. The family resemblance approach is adopted because such an approach can illuminate the features that many contemporary crossover texts are likely to share without casting them as a stable, closed category. This article argues that crossover literature is a group of texts that are likely to be infused with an ethos of the kinship model of childhood. The argument is then illustrated with a close analysis of Anthony Browne’s The Big Baby (1995), which focuses on how different models of childhood are juxtaposed and contrasted against one another and how the text is infused with an egalitarian and respectful view of children.
THE INTERNET AS A MEANS OF POLITICAL COMMUNICATION
Authors:   Western branch of the Russian Academy of National Economy and Public Administration under the President of the Russian Federation, Kaliningrad, Russian Federation, BURDEYNY VLADISLAV
Published: May 2022

The relevance of the research is due to the need to understand the role and importance of the Internet in providing political communications in modern Russia. Political actors, in order to intensify and improve the quality of their activities, turn to various channels of communication with society. Along with traditional media, they are increasingly using the capabilities of the global network, which has become an integral part of modern life. Based on various approaches, the article analyzes the place and role of Internet technologies in the sphere of political and power relations, studies the problems of effective use of the Internet space for political purposes, identifies and characterizes various forms of political communication on the Web, identifies key features of communications in the Internet space, argues the advantages of political Internet communication over traditional types of media, identifies and analyzes the system-forming features of the Internet that contribute to the formation of political images in the global network. The methodological basis of the article is the theoretical developments of both Russian and foreign researchers. The work uses general philosophical and socio-humanitarian methods. The empirical data used in the work are taken from open sources.
APPLICATION OF SOLAR DRYERS FOR DRYING AGRICULTURAL PRODUCTS AND OPTIMIZATION OF DRYING TIME
Authors:   Institute of Materials Science, SPA “Physics-Sun”, Academy of Science of Uzbekistan, Tashkent, Republic of Uzbekistan, RAKHIMOV RUSTAM , MUKHTOROV DILMUROD ,   Fergana Polytechnic Institute, Fergana, Republic of Uzbekistan
Published: May 2022

Given the limited mineral resources and the impossibility of using the world’s hydrocarbon reserves in a steady and growing way in the near future, the most important task facing every country is to find a way to prevent the impending energy crisis or alleviate the country’s energy problems. One of the ways to solve the global problems facing humanity is to use renewable energy sources. Based on the above information in this article, a method for analyzing the drying of agricultural products using solar and electricity has been developed. Modern designs of drying devices have been studied. Experimental studies were conducted on the basis of experimental research data, a sample of a solar dryer was constructed, optimal measurements were calculated, and the results of theoretical and experimental studies were presented. The thermotechnical properties of the solar dryer were studied. One of the most pressing issues today is the efficient use of solar energy and, of course, the development of energy-efficient energy-efficient devices, the introduction of the device into practice. The energy device we recommend below allows you to process and harvest agricultural products, fruits and vegetables in a timely manner, ensure the continuity of the drying process, and obtain fast and high-quality dried products with low energy consumption.
AUTOMATION OF CONTINUOUS BROADBAND HOT ROLLING MILL
Authors:   National Research and Engineering University “MISIS”, Moscow, Russian Federation, GERASIMOVA ALLA , ROMANOV SERGEY
Published: May 2022

The article deals with a continuous wide-field hot rolling mill for a foundry and rolling complex (LPC). The goal of automation of a continuous broadband hot rolling mill is to ensure the production of high - quality hot rolled products regardless of the working staff using a self-learning neural network and huge databases in the rolling industry. The collector was designed with an innovative shape and a new cooling liquid spray scheme in the COMPASS-3D CAD. The collector is equipped with infrared sensors that read the surface temperature of the rolling roll and actuators. An open microcontroller platform Arduino UNO was chosen to implement an automatic system for purposeful cooling of rolling mill rolls. The proposed scheme of an automatic system for purposeful cooling of rolls is a classic system with negative feedback. The whole system can be divided into two circuits: the first is to regulate the amount of water supplied based on the readings of temperature sensors, one for regulating the pressure of water supplied based on the pressure sensor. This approach is proposed for the first time to automate cooling of rolling mill rolls. Analysis of the results of modeling the operation of the automated collector showed the following results: 16 transshipments per month, 2 scheduled preventive repairs, and the average roll working rate of 87%. The proposed system allows efficient use of the coolant compared to the old system. Based on the analysis of the operating time of rolling rolls under various cooling modes, the system will allow you to track roll wear and inform the staff about the upcoming transshipment dates. An artificial neural network was developed and implemented in the cooling system of rolling rolls at the 1950 LPC mill in order to increase the stability of the working rolls and improve the quality of the resulting products.
DETERMINATION OF THE MAIN PARAMETERS FOR MODELING THE DYNAMIC LOAD PROCESS IN DRIVES OF HIGH-SPEED MACHINES
Authors:   Don State Technical University, Rostov-on-Don, Russian Federation, KOBZEV KIRILL , VYALOV SERGEY , DUROV ROMAN , VARNAKOVA EKATERINA , BOZHKO EVGENIY
Published: May 2022

Introduction. The article is devoted to the study of the synthesized concept of frictional contact of solids in crank presses. As a result of the analysis, the possibility of obtaining the maximum load characteristic of the friction contact within the interval of variation of the friction coefficient has been established. The possibility of equality of the values of the friction force of the friction contact at the boundaries of the indicated interval in the presence of a maximum and the achievement of their greatest stability under these conditions is also revealed. Materials and methods. When the angle value changes, the position of the maximum point changes. Since only the angle ratio establishes the equality of the friction forces at the boundaries of the interval of variation of the friction coefficient, changing the position of the maximum point of the function leads to a violation of this equality. In this case, the accuracy coefficient should be determined by the ratio of the maximum of the function to the smallest boundary value. To do this, it is necessary to establish trends in the change of the boundary values of the function associated with the variation of the angle. To solve this problem, a new value of the pressure tangent was presented as a product of the coefficient of variation and the base value of the tangent angle. The results of the study. The results show a high stability of the friction force during sliding of the friction contact bodies, although at large values of the pressure angle of the sensitive elements of the transducer sensor, the maximum friction force may briefly be proportional to the current value of the friction coefficient. Discussion and conclusions. As we see, the upgraded concept of frictional contact allows theoretically to obtain a very high stability of the friction force, however, due to the relatively large value of the angle and force parameter, it is used inefficiently. A necessary condition for the absence of vanishing of the output parameter of the main friction group of the friction contact in the interval of variation of the friction coefficient and the presence of the maximum function of the load capacity of the friction contact is the transfer of its full load by the sensitive elements of the additional friction group. An additional condition for the existence of a maximum is the need for the sensitive elements of the main friction group to transfer part of its full load with an equal number of friction pairs of both friction groups, and the sensitive elements to transfer the full load of the main friction group with less than the additional friction group number of friction pairs.
MODELING THE PROCESS OF OPERATION OF HIGH-SPEED EQUIPMENT AND THE INFLUENCE OF THERMAL PARAMETERS ON WORKING BODIES
Authors:   Don State Technical University, Rostov-on-Don, Russian Federation, KOBZEV KIRILL
Published: May 2022

Introduction. The article is devoted to the study of heat transfer processes occurring in space and time. Therefore, the study of thermal conductivity is reduced to the study of space-time temperature changes. Distinguish between stationary and non-stationary temperature fields. A non-stationary temperature field is a field whose temperature changes not only in space, but also over time. A stationary temperature field is a field whose temperature at any point does not change over time. Materials and methods. To solve problems associated with finding the temperature field, it is necessary to have a differential equation of thermal conductivity, which gives the relationship between temperature, time and coordinates of the elementary volume. The differential heat conduction equation describes the transfer of heat inside the body. In order to find the temperature field inside the body at any moment of time, that is, to solve the differential equation, it is necessary to know the geometric shape of the body and the boundary conditions. Boundary conditions consist of initial and boundary conditions. Research results. As a result of modeling the process of upsetting during stage-by-stage deformation, including 30 steps at each impact (total of 3 impacts) using the QForm-2D software package, maps of stress and strain distribution over the volume of the workpiece were obtained. Discussion and conclusions. The main process parameters influencing the nature of the technological force are the accumulated deformation and the resistance of the material to plastic deformation. From the analysis of the obtained pictures of the distribution of deformation over the cross section of the sample after upsetting, that under the accepted conditions it is uneven. The greatest accumulated deformation is observed in the center and in the peripheral layers on the contact surface, and in other areas its value is less than 0.1. The same unevenness is shown by the stress distribution pattern. This is explained by the fact that with an increase in the degree of deformation, the rate of heat release decreases in the same zones where the maximum accumulated deformation is concentrated.
APPLICATION OF FUNCTIONAL CERAMICS IN STERILIZATION PROCESSES
Authors:   Institute of Materials Science, SPA “Physics-Sun”, Academy of Science of Uzbekistan, Tashkent, Republic of Uzbekistan, RAKHIMOV RUSTAM
Published: May 2022

The construction of the Large Solar Furnace in Uzbekistan made it possible to obtain materials with unique properties that are difficult or impossible to obtain in another way. In particular, ceramic materials have been developed that convert the energy of the primary source into pulsed infrared radiation with a controlled rise time of the pulse. At the same time, the slope of the rising edge of the pulse can be viewed as part of a sinusoid. Radiation appears, as it were, with a pseudo-wavelength. Our long-term research has shown that this wavelength can work as the main one. However, the effect of dualism is also manifested here. The carrier energy corresponds to the fundamental wavelength in the IR range, and the slope of the rising edge of the pulse affects only the selected processes. One of such applications of these materials is the creation of sterilizers that can perform deep, efficient and high-quality sterilization of various objects. This article is devoted to this very aspect of the application of functional ceramics synthesized under the action of concentrated solar radiation.
ENERGETICS AND ELASTIC PROPERTIES OF LARGE NANO-OBJECTS: ORBITAL-FREE APPROACH ON THE BASIS OF THE DENSITY FUNCTIONAL THEORY
Authors:   Institute of Applied Mathematics of the Russian Academy of Sciences, Khabarovsk, Russian Federation, ZAVODINSKY VICTOR , GORKUSHA OLGA
Published: May 2022

Cohesive energy Ecoh and bulk modulus B of large nanosystems Cn, Sin, Aln и Tin, were calculated in the workframe of the all-electron version of the orbital-free approach on the basis of the density functional theory: number of atoms n was varied up to 4096 for carbon and silicon, 23 328 for aluminum, and 2662 for titanium. Nanosystems were taken as fragments of corresponding crystals. It was found that Ecoh and B tend to their values known for bulk materials. Therefore, it was convincingly shown that our orbital-free approach could be used successfully for study mechanical properties of large nanosystems.
APPLICATION OF THE FUZZY ANALYTIC HIERARCHY PROCESS TO THE FAILURE MODE AND EFFECTS ANALYSIS
Authors:   MIREA - Russian Technological University, Moscow, Russian Federation, TU PHAM VAN
Published: May 2022

FMEA - is a technique used to study potential failures of various products. The probability of occurrence (O), the likelihood of severity (S) and the probability of detecting defects (D) can be used as an indicator of the priority risk number (PRN). Comparison of various methods for determining the priorities of failure modes in the calculated FMEA analysis is carried out. The value of the fuzzy PRN and fuzzy analytic hierarchy process (AHP) is proposed for determining the weights of risk factors. A method is proposed to eliminate some of the disadvantages of the traditional approach. As a result of the study, a mathematical model and methodology were created to identify high-priority types of errors based on fuzzy FMEA - AHP.