bluuebunny/crossref_metadata_2025 huggingface dataset:
The mechanical behavior of a dynamically stressed customized skull implant made from different types of biomaterials by Additive Manufacturing technologies
Authors:   Technical University of Cluj-Napoca, Faculty of Machine Building,  B-dul Muncii nr.103-105, 400641, Cluj-Napoca, Romania, BERCE PETRU , CHEZAN HOREA ,   Technical University of Cluj-Napoca, Faculty of Machine Building,  B-dul Muncii nr.103-105, 400641, Cluj-Napoca, Romania, PACURAR RAZVAN ,   Technical University of Cluj-Napoca, Faculty of Machine Building,  B-dul Muncii nr.103-105, 400641, Cluj-Napoca, Romania
Published: June 2023

"The main objective of the research consists in the determination of the mechanical behavior of a customized implant that is dynamically stressed, especially the way the implant takes external loadings, as well as its influence on the adjacent areas that are destroyed, in close connection with the shape of the implant (solid or perforated) and the type of biomaterial the implant is made from (metallic or non-metallic). The assessment of such a hypothetic situation has been considered in order to determine which material is adequate to be used for the manufacturing of the implant and to determine also if some shape modifications are required to be realized in such a way that the impact shock will be much better resisted and the effect of the impact will be diminished especially in the vital areas, where the implant is in contact with. Such a complex analysis can be realized since the virtual generation of the medical implant, by conceiving different virtual models within the design stage and by performing complex analysis by the using finite element method as well. Our studies showed that the stress state of the assembly components is strongly influenced by the type of material from which the implant is manufactured, The decrease of the implant stiffness by realizing some perforations leads to an increase of the stress state of the implant simultaneous with a decrease of the stress level that is transmitted to the surrounding structures, the implants made from PMMA material have isolating properties superior as compared to the ones of the metallic material. "
Blended teaching and learning approach applied to electrical and computer engineering education
Authors:   Technical University “Gheorghe Asachi”, Iași, Romania, ADĂSCĂLIȚEI ADRIAN , ARĂDOAIEI SEBASTIAN TEODOR ,   "Technical University “Gheorghe Asachi”, Iași, Romania ", TODOS PETRU ION ,   "Technical Sciences Academy of Romania, Bucharest, Romania Technical University of Moldova, Chișinău, Republic of Moldova", DULGHERU VALERIU ,   "Technical Sciences Academy of Romania, Bucharest, Romania Technical University of Moldova, Chișinău, Republic of Moldova"
Published: June 2023

The article presents a review of the current e-pedagogical methods to develop Electrical and Computer Engineering Education (ECEE) Study Programs using Blended an Learning (BTL). Engineering crucial experimental competences can be developed with the help of remote labs (RLs) and simulations. These online experiments can be found in different engineering fields. Instructional Design (ID) Model is based on the ADDIE model that includes Analysis, Design, Development, Implementation, and Evaluation phases. Virtual Learning Environments (VLE) or LCMS (Learning Content Management Systems) are used to refer the on-line interactions for a variety of kinds that take place between students and teachers. Moodle (Modular Object-Oriented Dynamic Learning Environment) is known as a Course Management System (CMS). The review article provides resources to help teacher educators, administrators and policymakers better apply ICTs to EE programmes. The resources were developed by Faculties of Electrical Engineering Technical University ”Gh. Asachi” Iași, Romania , and Technical University of Moldova, Chișinău, with extensive experience in the integration of ICTs into engineering teacher preparation programmes.
Reverse method for determination of the qualitative wear occurring in the intermediate casing installed in oil and gas wells
Authors:   DRR Oil and Gas, Canada, RĂDĂCINĂ DAN , AVRAM LAZĂR ,   Petroleum-Gas University of Ploiesti, Romania
Published: June 2023

The aim of the present paper is to set up a method for enhancing the casing design with emphases on the intermediate casing or liners, regarding the wear of the casing wall, which is appearing while drilling the subsequent horizontal production hole. By using this method, the well designer has the opportunity to prepare a “working envelope” in such a way that the further considerations as the well trajectory, dog leg severities, drilling parameters, type of mud, tool join geometry, should keep the casing wear in within technological limits imposed by the oil and gas operator, in order to maintain the intermediate casing ( liner) integrity and do not diminish or affect at least the upcoming well stimulation programs, and well control measures. More than this, by using this method, the well trajectory can be optimized from the begging in such a way that the lateral forces on tool joints to be full as per recommendations of API RP7G [1], so increasing the safe work of the drilling string bellow the fatigue stress limits.
Plant Life Extension programs - useful resources for preservation and amplification of Nuclear Power Plants efficiency
Authors:   ", LUCAN DUMITRA ,   Institute for Nuclear Research, Campului no.1, Mioveni, POB 78, Arges, Romania Technical Sciences Academy of Romania ASTR, Dacia Avenue no.26, Bucharest, Romania", VALECA ȘERBAN CONSTANTIN ,   "Institute for Nuclear Research, Campului no.1, Mioveni, POB 78, Arges, Romania The University of Pitesti, Targul din Vale Street no. 1, Pitesti, România Technical Sciences Academy of Romania ASTR, Dacia Avenue no.26, Bucharest, Romania The Academy of Romanian Scientists AOSR, Splaiul Independentei Street no.54, Bucharest, Romania  ", JINESCU GHEORGHITA ,   "Politehnica University of Bucharest, Polizu Street no. 1-7, Bucharest, Romania Technical Sciences Academy of Romania ASTR, Dacia Avenue no.26, Bucharest, Romania"
Published: June 2023

"Plant Life Management (PLIM) is now usually taken to mean those many activities which are to do with the normal operational management of a nuclear power plant to maintain its 'good condition' and to enable operators or Owner(s) to meet the plant's intended amortisation period, operational life or design operational life. That is, it is to do with existing planned Plant Operational or Service Life assurance and not necessarily to do ith meeting an additional period or extended operation time in excess of that intended at the design or evaluation stage, which is usually known as Plant Life Extension (PLEX). The paper presents considerations regarding the ageing management of the NPP’s key components, Plant Life Management (PLIM), refurbishment as activity strictly necessary for Plant Life Extension, and the Romanian refurbishment program as part of PLIM from Cernavoda CANDU NPP. "
Experimental stand for internal pressure testing of pipes
Authors:   Petroleum – Gas University of Ploiesti, Blvd. Bucuresti, no. 39, Ploiesti, Romania, MINESCU MIHAIL , DINITA ALIN ,   Petroleum – Gas University of Ploiesti, Blvd. Bucuresti, no. 39, Ploiesti, Romani, RAMADAN IBAHIM NAIM ,   Petroleum – Gas University of Ploiesti, Blvd. Bucuresti, no. 39, Ploiesti, Romania, ZISOPOL DRAGOȘ GABRIEL ,   Petroleum – Gas University of Ploiesti, Blvd. Bucuresti, no. 39, Ploiesti, Romania
Published: June 2023

The experimental programs carried out on the stands for the research of mechanical stress behaviour typically target the following objectives: to determine the behaviour of the pipes at internal pressure and / or other mechanical stresses (which may secondary occur as accidental loads during exploitation), to establish the processes and factors of in-service degradation and to determine the load carrying capacity of pipes and other components of pipelines systems with defects of different types and configurations. For this paper an experimental stand was designed and developed for the purpose of determining the behaviour of the pipes with different types of imperfections / defects. The experimental results were verified and validated using the finite element method.
Influence of bolts bending on the strength of flanges joints of pressure vessels
Authors:   Industrial Process Equipment Department, University POLITEHNICA of Bucharest, Bucharest, 060042, Romania, ROMAN GEORGETA , APOSTOL DRAGOȘ ALEXANDRU ,   Materials Strength Department, “University POLITEHNICA of Bucharest, Bucharest, 60042, Romania
Published: June 2023

This paper highlighted the shortcomings of the current international normative on the calculation of flanges joints with gasket situated inside the circle of bolts holes. The current codes do not take into account, when calculating the flanged joints of the vessels, the bending stress that occurs as a result of the movement of the plates of the joint subjected to internal pressure. The bending of the bolts influences the deformation of the sealing gasket and – namely – the sealing of the flange joint. The knowledge of the bolts bending stresses allows to increase the time between two revisions/repairs and – namely – the useful life of the sealing gasket. The experimental data, obtained with the help of a strain gage bridge and by the Digital Image Correlation method on the designed experimental installation, highlighted the bending of the flange bolts, both for pressurization and depressurization. The experiments were performed at an internal pressure of 0.5; 1.0; 1.5 and 2.0 MPa.
Experimental evaluation of compressive strength of steel fiber reinforced soi
Authors:   Civil Engineering M.S. Civil Engineering Faculty, Kharazmi University, Tehran, Iran, Nouri Hesam haji Hosseini , Shahrouzi Mohsen ,   "Civil Engineering Assistant Professor, Civil Engineering Faculty, Kharazmi University,Tehran, Iran "
Published: June 2023

Today, development of industries has caused production of different scraps. Scraps are recyclable materials left in the environment. Unlike garbage, scraps, particularly those of copper and steel, are of great financial value. The application of steel scraps mixed with soil is one of the solutions to prevent environmental risks of steel. Considering the properties of steel, its scraps made into fibers could be used to reinforce soils and improve their mechanical properties. This study scrutinizes the effects of two types of steel fibers (plain hooked-end and crimped) added to clay with different weight percentages and aspect ratios (L/D) under uniaxial compressive strength test. The results indicated that the compressive strength of steel fiber reinforced soil is to a large extent increased. However, contrary negative effects in the compressive strength are possible once the weight percentage of steel fibers in soil exceeds a certain limit.
Superior recovery of ferrous waste
Authors:   ", COJOCARU MIHAI OVIDIU ,   University POLITEHNICA of Bucharest Romanian Academy of Technical Sciences", BRẬNZEI MIHAI ,   University POLITEHNICA of Bucharest, COMAN TUDOR ,   "University POLITEHNICA of Bucharest Quark IMPEX SRL Bucharest-Romania", DRUGẶ LEONTIN NICOLAE ,   Romanian Academy of Technical Sciences
Published: June 2023

Our experimental research has confirmed many practical results regarding the possibilities of ferrous waste recovery and has generated new perspectives for their use. It turned out that through an adequate preparation of ferrous waste involving washing - calcination - fragmentation - magnetic and granulometric sorting - rigorous dosing of the reducer - with or without the addition of new components (alloying elements, fluxes, etc.), depending on the purpose pursued, by carrying out closed, opened or virtual metallothermic reactions, pure technical iron, ferroalloys, alloy steels, additives used for non-removable joints by welding (welding aluminothermy) or powdery active components (virtual thermitic mixtures) used in thermochemical treatments can be obtained.
The limitations of energy accessibility, the irreversibility and two transdisciplinary principles
Authors:   University Politehnica of Bucharest, Industrial Process Equipment Department, Splaiul Independentei, 313, Bucharest, Romania, Jinescu Valeriu
Published: June 2023

The ability to produce motion based on man-made energy is essential to the civilization. Equally important is the most efficient use of energy to limit the consumption of natural resources as well as the resulting pollution. Consequently, it is necessary to know: - the factors that limit the energy accessibility; - the physical bases of irreversibility, as a premise of ensuring the maximum efficiency. The paper presents two new transdisciplinary principles: - the principle of energy accessibility, which introduces the concepts of degree of energy accessibility, degree of energy inaccessibility caused by natural conditions and degree of energy inaccessibility induced by technical conditions; - the principle of irreversibility which introduces the concept of degree of energy irreversibility in correlation with the physical bases of irreversibility.
Behavior at 1100°C of nickel–based alloys strengthened by MC carbides with M = Tantalum and Hafnium
Authors:   Faculté des Sciences et Technologies, Université de Lorraine, Campus Victor Grignard, 54500 Vandoeuvre–lès–Nancy, France, KANE DAME ASSANE , ARANDA LIONEL ,   Institut Jean Lamour, Université de Lorraine, Campus Artem, 2 allée André Guinier, 54000 Nancy, France, BERTHOD PATRICE ,   Institut Jean Lamour, Université de Lorraine, Campus Artem, 2 allée André Guinier, 54000 Nancy, France
Published: June 2023

The metallurgical principle constituted by a chromium–rich metallic matrix associated with eutectic script monocarbides represents a promising way in terms of high temperature performance. In this work, focus was done on polycrystalline nickel–based alloys reinforced by monocarbides involving both tantalum and hafnium, with as objectives exploring the microstructures that can be obtained and the metallurgical, chemical and mechanical behaviors of what they can be able. Two alloys were synthesized by foundry under inert atmosphere. Their as–cast microstructures were visualized by electron microscopy and their behavior at high temperature were explored, for the following temperature and time parameters: 1100°C and 50 hours for all tests. The obtained results show that the carbide population obtained after solidification is mainly composed of MC carbides in both cases but it is composed of MC carbides only for the alloy with more hafnium than tantalum. The morphological resistance of the MC carbides is good for the test conditions for both alloys. Concerning oxidation, a chromia–forming behavior was observed in the two cases, with furthermore an obvious good resistance against scale spallation at cooling. The oxidation–induced subsurface alloy degradations and the heat–induced bulk microstructure deteriorations were very limited. The bending tests under constant load allow the sample demonstrating good creep resistance. To summarize both alloys appeared as good bases for developing quite usable superalloys for this temperature where the high performance ’ nickel–based single crystals start to encounter serious problems as consequences of the loss of their reinforcing particles.
Transdisciplinarity based on Category Theory
Authors:   Technical Sciences Academy of Romania, CUNCEV IOAN
Published: June 2023

Physical reality can be characterized by the theory of categories that brings to the fore transdisciplinarity through invariants and structural and management patterns common to many fields. Applying the model of thinking the universe of systems according to category theory, many opportunities open for their modeling, but also for their planning, management and evaluation procedures. Structures and concepts in physical reality, as well as the relationships between them, become objects and morphisms through category theory, thus being valid in many fields. Objects can be aggregated through the relationships between them, in increasingly complex objects that meet the requirements of users in the knowledge society. In this respect, category theory provides the working tools for transdisciplinary modeling of systems on different levels of increasingly sophisticated reality
Study on the magnetic field influence around of the overhead power lines regarding the general public exposure level
Authors:   Technical University of Civil Engineering, Faculty of Building Services, Pache Protopopescu 66, Sector 2, 021414 Bucharest, Romania, DARIE ELEONORA , PÎSLARU-DĂNESCU LUCIAN ,   National Institute for Research and Development in Electrical Engineering ICPE-CA, Bucharest, Romania, Splaiul Unirii 313, Sector 3, 030138 Bucharest, Romania
Published: June 2023

This paper analyzes the distribution of the dimensions of the magnetic field in the vicinity of the high voltage overhead power lines (400 kV), in the context in which the effects of the electromagnetic field on living organisms and especially on humans are currently being analyzed. Electromagnetic fields of different frequencies interact with the human body in different ways, just as the effects of low frequency fields are not the same as those of the high frequency fields. Analysis of the electromagnetic field values near a high voltage overhead power line is very important for determining the degree of exposure to the electromagnetic field. The measurements are performed with the magnetic field tester, Hioki FT 3470-50 and the values obtained are compared with those indicated by current standards.
Assessing construction risk factors and ensuring safety
Authors:   Occupational safety and emergency Department, Georgian Technical University, 0160 Kostava street 77, Tbilisi, Georgia, RATIANI NINO , ILIAS NICOLAE ,   Mechanical Engineering Department, University of Petrosani, Petrosani, Romania, MACHAVARIANI NANA ,   Occupational safety and emergency Department, Georgian Technical University, 0160 Kostava street 77, Tbilisi, Georgia, RAZMADZE NANA ,   Occupational safety and emergency Department, Georgian Technical University, 0160 Kostava street 77, Tbilisi, Georgia
Published: June 2023

Construction is one of the most dangerous industries, which in physical terms is associated with the highest load. Trauma and accident statistics are high. Due to the multidisciplinary nature of employees in the construction sector, considering the impact of harmful and dangerous factors and difficulties of operating construction and transport equipment, construction is one of the most dangerous areas. During the 2020-2021 pandemic, various problems arose in the construction sector. The problem of the construction industry, delays caused by pandemics, the main causes of safety breaches, hazard detection, risk management outcomes are discussed in the article and recommendations are given to improve them. Research methods: Analysis of the theoretical and practical experience of existing means of occupational safety, working on statistical data on traumas and accidents, develop methods for identifying hazards, and assessing risks based on specific examples. Based on theoretical studies and analysis of existing conditions, measures have been developed to improve occupational safety. The importance of the mechanism for predicting unforeseen delays in the construction sector, the causeand-effect relationship between high statistics of injuries and accidents in conditions of excessive working hours. The complexity of the construction field is presented and analyzed with all clarity, taking into account the multitude of existing risk factors, the stages of risk assessment and management are schematically depicted, the criteria for determining the probability of events.
Prelim
Authors: Journal system
Published: May 2023

Abstract
Pensée arabo-islamique et questions philosophiques contemporaines
Authors: Ali Benmakhlouf
Published: May 2023

On pourrait sans doute faire remonter à l’avènement du cartésianisme, cette longue période pendant laquelle la philosophie arabo-islamique, associée en Occident à l’ensemble de la pensée médiévale, a été dans une large mesure en quelque sorte écartée de la réflexion et de la recherche philosophiques. Dans son ouvrage intitulé « Pourquoi lire les philosophes arabes ? », Ali Benmakhlouf s’efforce de rendre compte tout à la fois des caractéristiques de la philosophie contemporaine qui contribuent à redonner de l’intérêt pour la philosophie arabo-islamique, et expose les raisons pour lesquelles les problématiques et les thématiques sur lesquelles cette dernière s’était construite, doivent être prises en compte à notre époque. La méthode historique qui s’est imposée au XIXe siècle, note ainsi l’auteur « …finit par exclure les huit siècles d’effervescence intellectuelle du monde arabe, considérant que l’essentiel était la transmission de la philosophie grecque, comme si cette transmission se faisait de manière neutre » (p. 22).
Visualization of algorithms on graphs with a large number of vertices: The features of applications design
Authors: Gryzun Liudmyla , Shcherbakov Oleksandr , Parfonov Yurii , Bodnar Liliia
Published: May 2023

The task of visualization of large graphs as a special data structure and algorithms on them is considered by scientists and practitioners as a complex and non-trivial problem. The analysis of scientific works and existing software applications that implement similar functions of the subject domain testifies the relevance of expanding exploration in the lines of identifying the features of the development of applications for the visualization of large graphs and algorithms on them. The formulation of features and recommendations for the development of such software and presentation of the software module designed by the authors is the aim of the article. In the course of the work, the main features of the development of a program for the visualization of graphs with a large number of vertices were identified and formulated using methods of analysis and graph theory. Special recommendations on the essence of each of the stages of development of such applications were provided and those steps that are most important for developers in terms of the complexity of processing and visualization of large graphs, metrics of their layout in the application screen, etc. were identified. A software module developed by the authors, that provides a unified application programming interface for visualizing any algorithm on graphs, which allows to save time working on utility software and focus more on solving algorithmic problems is also presented. The presented module was developed by the authors taking into account the identified recommendations. A comparative analysis of the developed software module and analogues was carried out, which proved the extended functionality of the module for the visualization of graphs with a large number of vertices. The module is a practically valuable tool for data structures researchers and other experts working on graph algorithms, since it enables data visualization at debugging software and simplifies the analysis of large data structures
DA GRADUAÇÃO AO DOUTORADO: NARRATIVAS SOBRE AS CONTRIBUIÇÕES DAS AÇÕES AFIRMATIVAS PARA A ESCOLARIZAÇÃO DE PESSOAS NEGRAS
Authors: Oliveira Vilmar Pereira de , Cirino Sérgio Dias
Published: May 2023

O presente artigo apresenta o recorte de um estudo que investigou as trajetórias de pessoas negras graduadas e pós-graduadas em Psicologia, discutindo sobre os aspectos relativos à elaboração de um projeto profissional e de vida, bem como o planejamento de carreira. Através do retorno aos dados da pesquisa, sublinha-se alguns trechos das histórias de vida registradas com o intuito de apontar as contribuições das ações afirmativas, que visam promover o ingresso de estudantes pretos e pardos na Educação Superior. São apresentados fragmentos de um conto construído a partir das trajetórias das mulheres que participaram do estudo, metodologicamente estruturado por estratégias etnográficas e ficcionais de produção e análise de narrativas. Como resultados destaca-se que, entre outras, as bolsas e as políticas de cotas tornaram possíveis a escolarização das pessoas ouvidas, mas ainda é pertinente o desenvolvimento de ações para ampliar a permanência e a qualidade da formação dos referidos sujeitos.
É POSSÍVEL APRENDER MATEMÁTICA POR MEIO DE JOGOS E BRINCADEIRAS?
Authors: Freitas Lessandro Antonio de , Silva Nicolly Ramalho
Published: May 2023

As brincadeiras fazem parte do universo das crianças, uma vez que elas entendem, interpretam e aprendem brincando. Ao brincar, os estudantes desenvolvem determinadas características, como habilidades cognitivas e interativas. Dessa forma, o lúdico é um fator que possibilita o processo de ensino-aprendizagem na educação. As brincadeiras relacionam-se ao aprendizado de várias disciplinas, como, por exemplo, a matemática. Assim, o objetivo dessa pesquisa foi demonstrar ser possível ensinar e aprender conteúdos da matemática por meio de jogos e brincadeiras, e propor atividades que trabalhem conteúdos básicos da matemática. A metodologia utilizada foi a revisão narrativa, sendo essa técnica uma forma de obter informações para a fundamentação teórica sobre determinada temática de estudo. Por fim, foi possível concluir que jogos e brincadeiras fazem parte do cotidiano dos discentes, logo, esses ganham relevância no processo de ensino-aprendizagem, assim é possível aprender matemática por meio de jogos e brincadeiras
UMA CONTRIBUIÇÃO PARA A TEORIA E A PRÁTICA DE PAULO FREIRE: O “SERVIÇO DE EXTENSÃO CULTURAL/UNIVERSIDADE DO RECIFE” (1962-64)
Authors: Gerhardt Heinz Peter
Published: May 2023

Esta contribuição é um relato histórico da práxis pedagógica e administrativa de Paulo Freire antes de seu exílio forçado em 1964. Baseia-se em entrevistas realizadas durante uma pesquisa de campo em 1976, em uma conversa com Paulo Freire em Genebra um ano depois e na literatura secundária atualizada. Ser o primeiro Diretor do Serviço de Extensão de uma grande universidade brasileira no início da década de 1960 deu a Freire e seus colaboradores o espaço e o tempo para experimentar o hoje mundialmente famoso método de alfabetização que leva seu nome. O conceito de "Campo de Produção Cultural" (Bourdieu) é utilizado para elucidar melhor a produção vanguardista de Freire e sua equipe dentro dos espaços abertos pelos movimentos populares do Brasil no início dos anos 1960. A contribuição mostra como o “Sistema Paulo Freire” se desenvolveu na práxis de um movimento cultural e político, recebendo sua consagração acadêmica numa forma  gradual e eclética.
Impacto da biblioteca padrão do C++ nos Kernels do NAS Parallel Benchmarks
Authors: Mallmann Leonardo , Bianchessi Arthur , Griebler Dalvan
Published: May 2023

A programação paralela nativa na linguagem C++ ganhou força com os std algorithms e suas políticas de execução paralela. Para que seja possível a aplicação destes recursos, porém, é necessário a incorporação no código das estruturas de dados sobre as quais tais funções possam operar. Mesmo adicionando uma camada de abstração maior através de tais estruturas, observou-se um tempo de execução similar à versão em C.
Análise de Correlação no Esforço de Desenvolvimento de Aplicações Paralelas
Authors: Eichner Eduardo , Andrade Gabriella , Griebler Dalvan , Fernandes Luiz Gustavo
Published: May 2023

Neste trabalho, foram analisadas diversas métricas, voltadas para uma aplicação de processamento de vídeo, utilizando as interfaces FastFlow, TBB e SPar. Os resultados revelam que utilizando a SPar e o FastFlow é possível desenvolver uma aplicação paralela eficiente com menos esforço, ao contrário do TBB. Em trabalhos futuros planejamos incluir mais aplicações no dataset a fim de confirmar os resultados.
Uma proposta de análise de desempenho para rastreamento de fluxos de trabalho usando SPIFFE/SPIRE
Authors: Pagliusi Milton P. , Miers Charles C.
Published: May 2023

A implementação de métodos seguros com o fim de estabelecer confiança entre entidades dentro de ambientes de nuvem é um problema discutido desde o início da adoção desta tecnologia por diferentes organizações. Este artigo propõe uma análise de desempenho de uma aplicação, utilizando SPIRE, entre o emprego de modos diferentes, durante execução das funções de delegação e uso de tokens de identidade estendidos.
Cloud computing para deploy de modelos de deep learning para a classificação de Retinopatia Diabética
Authors: Camargo Matheus W. , Künas Cristiano A. , Navaux Philippe O. A.
Published: May 2023

A retinopatia diabética (RD) é uma doença que vem crescendo a ritmos alarmantes. A falta de mão de obra especializada para diagnóstico, essencial para o tratamento bem-sucedido da doença, traz a necessidade de estudo de alternativas para o diagnóstico via meios computacionais. Neste trabalho, avaliamos o desempenho e custo de alternativas para o deploy de modelos de Deep Learning para classificação de RD. Através da escolha da melhor arquitetura, foi possível melhorar o desempenho em até 1,71 vezes, com redução de custo de 4,17%.
Proposta de um Cluster para Aplicações de HPC com o uso de Docker e Infiniband
Authors: Silva Weslley da C. , Geronimo Guilherme A. , Mendizabal Odorico M.
Published: May 2023

O custos elevados para a aquisição e manutenção de infraestrutura para HPC tem sido alvo de preocupação por parte dos pesquisadores, de forma a buscarem alternativas como a de clusters compartilhados entre grupos de pesquisa, utilização de virtualização e o uso de contêineres. Desta forma, diante da criação de novos desafios enfrentados pelas equipes, este trabalho apresenta uma proposta de um cluster HPC com o uso de contêineres Docker.
Umkämpfte Souveränität: Regionen und Minderheitenpolitik in Europa
Authors: Kraus Peter A.
Published: May 2023

Der Beitrag arbeitet in analytischer Absicht Unterschiede und Zusammenhänge zwischen territorial- und minderheitenpolitischen Konflikten in Europa heute heraus. Seine Hauptthese ist, dass eine effektive Bearbeitung dieser Konflikte mit einer grundlegenden Revision vorherrschender auf den Nationalstaat bezogener Souveränitätsvorstellungen verbunden sein muss. Zunächst werden einige zentrale konzeptuelle und theoretische Probleme der Definition von Regionen, Minderheitennationen und nationalen Minderheiten erörtert. Vor diesem Hintergrund werden dann charakteristische Merkmale der Beziehungen von Mehrheiten und Minderheiten im europäischen Vergleich dargelegt. Schließlich verweist der Artikel auf die Unzulänglichkeiten politischer Ordnungsmodelle wie Autonomie und Minderheitenschutz, die die hierarchische Struktur dieser Beziehungen reproduzieren und damit eine Politik der ungleichen Anerkennung fortschreiben.
Territorialkonflikt in Spanien: Die katalanische Herausforderung
Authors: Bossacoma Pau , Nagel Klaus-Jürgen
Published: May 2023

Der katalanische Konflikt hat mit dem unilateralen Referendum und der Unabhängigkeitserklärung von 2017 große internationale Aufmerksamkeit erregt. Nach einer historischen und verfassungspolitischen Einführung, die zu einem besseren Verständnis des Konflikts beitragen soll, präsentiert der vorliegende Artikel zehn Vorschläge, dem territorialen Pluralismus in Spanien politisch angemessen Rechnung zu tragen und auf die katalanische Herausforderung zu antworten. Diese vielfältigen Formen des Ausgleichs sind kein Produkt abstrakten normativen Denkens, sondern vielmehr inspiriert von tatsächlich bestehenden Institutionen und Praktiken in vergleichbaren Fällen. Der Vergleich von Politik und Recht zeigt Ansätze, um die katalanische Herausforderung konstruktiv anzugehen. Deren Umsetzung wird in Spanien allerdings durch einen Mangel an politischem Willen im Kontext einer Verfassungsordnung behindert, die bislang im Kern monistisch interpretiert wird.
Control and its perception in CEE parent companies and their developed market subsidiaries
Authors: Velinov Emil , Hilger Andreas M.
Published: May 2023

Our article examines control perceptions among Central and Eastern European (CEE) parent companies and their subsidiaries in developed markets based on human resource management and corporate social responsibility practices. Through a multiple case study approach, we identify the usage of impersonal and personal control mechanisms across three parent companies from the Czech Republic and their subsidiaries in Germany. We also identify perception gaps regarding the intensity of the asserted parental control of subsidiary practices. Due to isomorphic pressures, parental interference in practices with a high contextuality in the developed host market result in the perception of being tightly controlled in the subsidiary, which is in contrast to the parent’s perception. Nevertheless, we demonstrate that close personal ties between parent and subsidiary managers alleviate the control perception on the subsidiary side and consequently the overall control perception gap.
Peran Pertumbuhan Pasar Modal Syariah Dalam Peningkatan Perekonomian Indonesia
Authors: Ahmad Kharisul Muslih  , M. Ahsan Taufiki  , Agus Eko Sujianto
Published: May 2023

Sharia financial instruments continue to increase every year, including the Islamic capital market which has also experienced a significant increase. The Islamic capital market has one of the most important instruments, namely Islamic stocks. The capital market has been viewed by the world and has been used as an important instrument that every country must develop, it can be remembered for its important role in helping the economy. In writing this article using the library research method. By using the documentation data collection method, namely by quoting or recording directly from the website of the Financial Services Authority www.ojk.go.id and the Central Bureau of Statistics www.bps.go.id. The results of this study show that the strong and increasing role of the Islamic capital market in shaping the capitalization of the Indonesian capital market indicates that the Islamic capital market plays an important and significant role in driving the rate of economic growth in Indonesia.
Peran Dan Kewenangan Otoritas Jasa Keuangan (OJK) Dalam Perkara Kepailitan Perusahaan Asuransi
Authors: Nurani Chofifah  , Dwi Nurrahmawati  , Daerent Dhavarell  , Endang Kartini Panggiarti
Published: May 2023

This study aims to find out perspectives on the role and authority of the Financial Services Authority in bankruptcy cases at insurance companies in Indonesia. OJK is an independent body that is free from government interference in its duties, functions and authority to supervise, inspect and conduct investigations in the financial services sector so as to create a good national economy. Within the scope of supervision in the insurance sector, the Financial Services Authority has the authority relating to submitting bankruptcy declaration requests to insurance companies in order to protect the interests of insurance policy holders. Arrangements regarding the authority of the Financial Services Authority in submitting requests for bankruptcy statements against insurance companies are regulated in Law no. 21 of 2011 concerning the Financial Services Authority. The research uses a qualitative descriptive approach using secondary data obtained through library research. The role of the Financial Services Authority in the bankruptcy of an insurance company is to oversee the course of the insurance company's bankruptcy until liquidation and to ensure that the insurance company has paid all its obligations to creditors.
ENVELHECIMENTO, AGEISMO E GESTÃO ORGANIZACIONAL
Authors: Costa e Silva Thales Fabricio da , Eduardo de Camargo Oliva  , Maria do Carmo Romeiro
Published: May 2023

O artigo objetiva realizar uma análise integrativa da literatura sobre envelhecimento, ageismo e gestão organizacional e apresentar o perfil da produção científica fruto desta interface. A estratégia metodológica adotada foi a revisão sistemática da literatura disponível na Web of Science e posterior integração dos resultados obtidos pelas revisões da literatura realizadas por Pedro et al. (2020) e Helal e Viana (2021), que já haviam pesquisado, respectivamente, sobre ageismo e gestão da idade nas organizações. Concluiu-se com uma bibliometria dos três levantamentos. Os resultados apontam 38 artigos publicados entre os anos 2003 e 2021, com evolução das publicações a partir de 2015 e uma maior quantidade de levantamentos e com abordagem quantitativa. A integração dos resultados revela estereótipos negativos sobre a velhice, presença do ageismo nas organizações e ausência de políticas e práticas de gestão da diversidade etária que fomentem a empregabilidade e a permanência de profissionais maduros.
Campañas de concienciación sobre prevención y su efecto en la presentación de dengue en los habitantes del “Recinto La Chontilla” del cantón Milagro.
Authors: Pesantez Jara Nadia Carolina , LLaque Almeida Jonathan Andrés
Published: May 2023

En el Recinto “La Chontilla” del canto Milagro el año 2022 se reportaron unos 67 casos de Dengue, lo cual, por la falta de información y prácticas inadecuadas sobre las medidas preventivas por parte de los habitantes, siendo este el desencadenante para la propagación. El estudio tuvo como objetivo determinar la incidencia de las campañas de concienciación sobre prevención y su efecto en la presentación de dengue en los habitantes del “Recinto La Chontilla” del Cantón Milagro. La metodología aplicada en la investigación tiene un enfoque mixto proporcionando datos tanto cualitativos y cuantitativos, además de presentar un alcance descriptivo, correlacional, explicativo y transversal, para lo cual la población de estudio será 100 habitantes. Además, es importante expresar que la población es de tipo probabilística y de tipo finita.
Community-Based Learning as a Student Portfolio in Culinary Courses with Conjoint Analysis
Authors: Winanti Winanti
Published: May 2023

This study aims to describe a practice approach to building a learning community based on portfolio assessment carried out in the culinary community. The method used in this study is a qualitative method using direct observation, interviews, and documentation. The results showed that the student's portfolio resulted from cooking practice, where the cooking practice started from choosing a recipe, choosing the right ingredients, doing the cooking process, validating, and getting feedback. The whole learning process is carried out properly and accompanied by teachers and chefs to produce a student portfolio consisting of 5 components, namely student identity, activities followed, rating results, competencies, and certification types of student competencies through the portfolio. The results of the practice can be seen in the student portfolios in the learning community system. It can be seen the experience of students in participating in cooking practices and the number of scores on the like button and the number of reviews on the view comments in each student's portfolio. The most important factor in a learning community in the culinary field is a portfolio of 15,252, followed by a login factor of 13,112 and a collaboration of 11,132, so the author conducts research focusing on student portfolios. This study only discusses the results of cooking practice as a student portfolio in the learning community and does not discuss what features are used in practice and portfolios
Optimalisasi Pengendalian Persediaan Barang Dagang (Merchandise Inventory) pada PT. AD (Pendekatan Analisis ABC, Penentuan EOQ, Safety Stock & Re-order Point)
Authors: Yani Ahmad
Published: May 2023

Penelitian ini bersifat observative dengan simulasi yang bertujuan untuk optimalisasi pengendalian persediaan barang dagang (Merchandise Inventory) pada PT. AD. Adapun pendekatan metode analisis yang digunakan adalah analisis ABC, penentuan kuantitas EOQ, Safety stock dan Re-order point persediaan. Populasi penelitian ini meliputi seluruh persediaan barang dagang (Merchandise Inventory) pada PT. AD, dengan data yang dijadikan sampe analisis adalah data sekunder berupa data historical permintaan dan pengadaan barang selama periode tahun 2022.Analisis ABC pada penelitian ini bertujuan untuk mengkategorisasi item persediaan per prinsipal, sehingga keputusan manajemen persediaan dapat disesuaikan dengan kategori masing-masing persediaan. Hasil analisis ABC dapat direview terdapat 2 prinsipal dengan kategori A (fast moving) yaitu prinsipal IT dan DAI, sementara 1 prinsipal masuk kategori B (Middle moving) dan 2 prinsipal lainnya adalah kategori C (Slow Moving).Penentuan kuantitas EOQ sebagai simulasi digunakan sample pada item produk prinsipal kategori A dengan % Value Net Sales tertinggi yaitu prinsipal IT (46.6% Value Net dari total net). Hasil perhitungan menunjukan kuantitas EOQ dapat direkomendasikan karena dapat mengurangi frekuensi pesanan (Effisiensi Order) sebanyak 10 pemesanan (base on unit armada suplai) dari frekuensi pesanan aktual selama tahun 2022, dimana secara simulasi diestimasikan dapat memberikan kontribusi efiseinsi sebesar Rp. 108.650.000 (10 x Rp. 10.865.000).Penentuan kuantitas Safety Stock dan Re-order point sebagai simulasi digunakan sample pada item produk prinsipal IT kategori A. Analisis perhitungan kuantitas Safety Stock, dengan service level 85% maka safety stock masing-masing item dapat dihitung dengan mengkalikan nilai standar deviation masing masing item produk dengan safety factor 1.04 (safety faktor untuk service level 85%), atau pada perhitungan kali ini menggunakan fungsi excel Norminv dengan probability 0.85. Hasil perhitungan kuantitas Safety Stock me-rekomendasikan untuk item code 0024 adalah 11.070 Ctn, item code 0025 adalah 3.688 Ctn, item code 5.545 Ctn, dan item Code 0029 adalah 8.513. Proses analisis lanjutan perhitungan Re-Order Point maka diperoleh nilai ROP untuk item produk 0024 adalah sejumlah 13.944 Ctn, item produk 0025 adalah sejumlah 4.743 Ctn,  item produk 0026 adalah sejumlah 7.656 Ctn, dan item produk 0029 adalah sejumlah 11.066 Ctn. Hasil analisis menunjukan bahwa metode ABC, EOQ, Safety Stock dan Re-order Point dapat diterapkan untuk optimalisasi persediaan barang dagangan di PT. AD.Keywords: Analisis ABC, EOQ, Safety Stock, Re-Order Point
WATER-SALT REGIME OF MILL PLAIN SOILS
Authors: QAFARBƏYLİ K.Ə , MİRZOYEVA D
Published: May 2023

In the article, the water-salt of the plain soils regime, the movement of water in soil layers, this causes of soil moisture, the amount of moisture in the soil layers, accumulation of salt reserves in the soil layers
Development of measures for effective combat with formation of crystalline hydrates during transportation of hydrocarbon gases in main pipelines
Authors: Alakbarov Y. , Muradov R.
Published: May 2023

In the article, it is detailed about the development of effective measures to combat the formation of crystalline hydrates during the transportation of hydrocarbon gases in main pipelines. It is noted that hydrates of natural gases are formed as a result of a chemical reaction between the gas itself and the water vapor contained in these gases. Gas hydrates of methane, ethane, propane, isobutane, and normal butane are formed by the combination of one molecule of each gas with several molecules of different numbers of water vapor. Hydrate is also formed from carbonic gas. Hydrocarbon hydrates do not form higher than pentane. Starting from methane to butane, each gas has such a temperature limit at which a hydrate is formed, above these temperatures hydrates are not formed. With the Hamer-Smidt formula, the temperature of hydrate formation is determined depending on the pressure. The turbulence of gas movement helps the formation of hydrates. Permanent gas-hydrate equilibria are found from the family of curves constructed by the experiments of Karsan and Kats. A hydrate is also formed from carbon dioxide. Hydrocarbon hydrates do not form higher than pentane. Starting from methane to butane, each gas has such a temperature limit at which a hydrate is formed, above these temperatures hydrates are not formed. With the Hamer-Smidt formula, the tempe- rature of hydrate formation is determined depending on the pressure. The turbulence of gas movement helps the formation of hydrates. Permanent gas-hydrate equilibria are found from the family of curves constructed by the experiments of Karsan and Kats. The formula for determining the temperature in the gas pipeline is given in the article. This is also the formula of the law of pressure distribution in the gas pipeline. On the basis of the temperature of the drop of the hydrate, the distance from the beginning of its drop is determined by the formula of V. G. Shukhov, for which the second formula is also given. Three groups of methods of combating hydrate blockages are shown, and five different methods of drying natural hydrocarbon wet gases are presented
Year-one knowledge and skills in theriogenology: a preliminary study
Authors: Root Kustritz Margaret , Sertich Patricia , Johnson Aime , Madill Scott
Published: May 2023

Veterinary practitioners who had just completed their first postgraduate year of work were surveyed to determine what knowledge and skills in theriogenology were used in that first year with the goal of helping veterinary schools prioritize components of the model core curriculum in their curricular offerings. The survey was based on a core curriculum created by the American College of Theriogenologists. Forty-eight surveys were returned; response rate could not be calculated. The majority of participants were in small animal practice but a wide range of employment experiences was represented. The only component listed as very commonly used in all practice types was ‘reproductive anatomy in any species.’ Reproductive work in general was not managed by small animal practitioners, reflecting current caseload in most small animal primary care clinics in the United States, which focuses on sterilized small animal patients. Reproductive work was more common among large animal practitioners, particularly those in mixed and food animal practices. The core curriculum is comparative and in this study many of the components rated as being used very commonly required input from disciplines outside of theriogenology for training, including anesthesia, surgery, and medical imaging. It is important for those teaching theriogenology to be an active part of all conversations about curriculum at academic institutions and that the comparative nature of theriogenology be stressed to ensure all necessary components are being taught to prepare graduates for theriogenology work in practice.
A survey of the use of theriogenology related models across veterinary curricula
Authors: Koziol Jennifer , Gibbons Philippa , Dascanio John
Published: May 2023

The use of models within theriogenology curricula has become increasingly more common over the last few years. Currently, there are no compiled data regarding the types of theriogenology related models used at veterinary institutions across the world. A 55-question survey regarding the use of models in the theriogenology curricula was distributed via multiple listservs. A total of 31 responses were garnered representing 24 veterinary institutions from 5 continents. Data collected in the survey indicated that large animal transrectal palpation models, dystocia models, and small animal ovariohysterectomy and castration models are the most used models. Commercial models are widely used; however, multiple models are built at institutions. Only 1 model listed by respondents has been validated in the literature. Institutionally created models are most often built by faculty and most of the models described are used only for developing technical skills. A large percentage of respondents that listed models believed that the models improved students’ technical skills, but for the most part are not a substitute for live animal experiential learning.
Overview of educational research in theriogenology
Authors: Root Kustritz Margaret , Nault Andre
Published: May 2023

A review of the literature identified 59 studies specific to educational research in theriogenology. Provision of this comprehensive list of educational research in theriogenology will provide a resource for educators and encourage collaboration within the American College of Theriogenologists and Society for Theriogenology.