bluuebunny/crossref_metadata_2025 huggingface dataset:
Anwendung einer Support Vector Machine zur Überwachung der Altsandregeneration mit EIS-Daten
Authors: Bifano Luca , Fischerauer Gerhard
Published: August 2024

Die Altsandregeneration stellt einen Prozess zur Wiederaufbereitung von verwendetem Formstoff im Formstoffkreislauf von Gießereien dar. Zurzeit wird ihre Überwachung alleine durch Labormethoden realisiert, was mit einem hohen Zeit- und Personalaufwand verbunden ist. Um den Prozess überwachen und automatisch regeln zu können, wurde in dieser Arbeit ein Zusammenspiel aus elektrischer Impedanzspektroskopie (EIS) als Messmethode und Support Vector Machines (SVM) als Auswerteverfahren untersucht, da es sich bei beiden Methoden um prinzipiell inlinefähige Werkzeuge handelt. Ziel der Untersuchung war es, die Leistungsfähigkeit von EIS + SVM bei der Überwachung des Prozessfortschritts zu beurteilen. Aus den Impedanzspektren extrahierte Merkmale wurden zum Entwurf einer SVM für die Klassifikation und darüber hinaus für eine Regression verwendet. Dazu wurden zu verschiedenen Zeitpunkten entnommene Zwischenstufen von Regeneraten aus einem schonenden (R1) und einem intensiven (R2) Regenerationsprozess impedimetrisch vermessen. Bei Prozessende wurde das Regenerat aus R2 als vollständig regeneriert definiert. Mit der SVM wurde abgeschätzt, welchem Zustand aus R2 das Regenerat aus R1 entsprach. Dabei zeigte sich, dass sowohl die Klassifikation als auch die Regression plausible Lösungen lieferten. Die SVM setzte den Regeneratzustand am Ende von Prozess R1 einem nur zur Hälfte regenerierten Altsand aus Prozess R2 gleich. Diese und andere SVM-Aussagen konnten über Sandlabordaten bestätigt werden.
Einsatz von orthogonalen Codes zur Mehrquellen-Richtungsschätzung mit dünn besetzten Mikrofonanordnungen
Authors: Fischer Georg K. J. , Schaechtle Thomas , Höflinger Fabian , Rupitsch Stefan J.
Published: August 2024

Akustische Lokalisierung bietet die Möglichkeit, in Innenräumen relativ hohe Lokalisierungsgenauigkeiten von etwa 10 cm zu erreichen. Dies ist besonders vorteilhaft in Bereichen wie Krankenhäusern, wo funk-sensible Umgebungen den Einsatz herkömmlicher Technologien einschränken können. Der Einsatz von Mikrofonanordnungen (Arrays) zur Richtungsschätzung ermöglicht zudem die Reduzierung der Anzahl benötigter Ankerknoten. Dies führt zu einer erheblichen Senkung der Installations- und Betriebskosten. In dieser Arbeit wird ein solches System entworfen, das auf einem rechteckigen Array mit 64 Mikrofonen basiert. Für die beabsichtigte Schmalband-Richtungsschätzung mit mehreren Benutzern sind orthogonale Signale erforderlich. Deshalb werden in dieser Arbeit verschiedene Kandidaten orthogonaler Codes für diesen Einsatz untersucht. Zadoff-Chu-Sequenzen erweisen sich dabei als geeignete Wellenform. In einem Experiment wird die Machbarkeit des Konzepts anhand von drei Quellen demonstriert. Das 95% Konfidenzintervall um den Median der Richtungsabweichung beträgt 0,008 ∘. Die Ergebnisse dieser Arbeit bieten eine Grundlage und ermöglichen die Weiterentwicklung von speziell dünn besetzten Arrays, die die gleichzeitige Schätzung von mehr Quellen als Sensoren erlauben.
Isoquercitrin attenuates neuroinflammation in LPS-stimulated BV2 microglia cells via p38MAPK/NF-κB pathway
Authors: Chang Shiyi , Chang Yan , Wang Jiajia , Huang Xuelian
Published: August 2024

Objectives

Microglia mediated neuronal inflammation has been reported to be responsible for neurodegenerative disease. Isoquercitrin (IQC), widely found in fruits, vegetables and foods, has high bioavailability and offers many benefits of humans. Although IQC has been shown to possess pleiotropic biological activities, but its anti-inflammatory mechanism in microglia at molecular level remains largely unclear. Therefore, this study aimed to investigate IQC’s inhibition on inflammation within BV2 microglia cells induced by lipopolysaccharide (LPS) and the underlying mechanism.

Methods

The cell viability was tested by using the MTT assay and the NO production was measured by Griess reagent. Inflammatory cytokines expression was determined by RT-qPCR and the expression of iNOS、COX2 and correlation factor of NF-κB and MAPK pathway were determined by RT-qPCR and western blotting.

Results

IQC does not affect the viability of LPS-stimulated microglia. IQC treatment inhibited LPS-triggered NO and PGE2 production, iNOS and COX2 expression and affected the mRNA levels of relative inflammatory cytokines. Moreover, IQC inhibited nuclear factor kappa B(NF-κB) and MAPK pathway activation mediated by LPS, thereby inhibiting the levels of inflammatory cytokines.

Conclusions

IQC exhibited remarkable anti-inflammatory effects and promised therapeutic potential for neural inflammation associated diseases.
O Fechamento de Estabelecimentos Profissionais: um Objeto de Pesquisa Etnológica Legítimo
Authors: Monjaret Anne
Published: August 2024

O fechamento de locais de trabalho em todos os setores de atividade faz parte da paisagem global. Porém, aqui Anne Monjaret escolheu se debruçar sobre o caso francês. Ela propõe abordar essa temática em profundidade e fazer dela um objeto de pesquisa. Partindo da literatura disponível sobre o tema e de suas próprias experiências de campo, ela ressalta as características que permitem compreender e reconhecer o que pode ser definido como um processo duradouro cujo ponto culminante está no evento ou contraevento que marca o final da atividade de origem, antes de uma destruição, de um total abandono ou de uma requalificação (cultural, patrimonial, etc..) do lugar.
Pintura e Sociedade: Retratos de Beneméritos das Sociedades Portuguesas de Beneficência e o Patrimônio Cultural no Sul do Brasil
Authors: Chaves Larissa Patron
Published: August 2024

Este trabalho objetiva analisar parte da trajetória histórica das Sociedades Portuguesas de Beneficência no Rio Grande do Sul a partir de uma abordagem qualitativa que privilegia a história comparada. Busca verificar as suas correlações com as elites locais através do estudo dos retratos de beneméritos produzidos por artistas locais e estrangeiros no final do século XIX, hoje constituíntes das suas galerias de honra e parte do patrimônio material do Estado. Nesse sentido, analisa através das imagens como as Instituições se (re) apresentam perante as comunidades locais e perante Portugal, tendo em vista o estudo de suas organizações e funcionamento, bem como regras e comportamentos sociais. A pesquisa apresenta a possibilidade de estabelecer relações entre as imagens produzidas pelas Instituições e as suas aplicabilidades, explicitando os modos como as representações percebem as distintas e complexas relações sociais do contexto local e regional.
A Memória das Comunidades do “Paredão e da Costa do Bica” - Piratini/RS
Authors: Quevedo Gisele Dutra
Published: August 2024

As comunidades do “Paredão” e a “Costa do Bica”, localizadas na localidade denominada “Capela” no 3º Distrito de Piratini é considerada para muitos moradores do município como um “lugar de memória”. A série de imagens aqui apresentadas pontuam os três tipos de patrimônio que identificamos nessa localidade: natural, imaterial e material. Dessa forma estas cinco imagens representa de alguma forma a memória que deve ser preservada por estas comunidades.
A Regularização do Traçado e as Práticas Urbanísticas na Urbanização da Região do Portal de Acesso da Laguna dos Patos/RS Rio Grande, São José do Norte e Pelotas (1737-1822)
Authors: De Oliveira Ana Lúcia Costa , De Souza Célia Ferraz
Published: August 2024

O presente artigo trata do estudo da regularização dos traçados na urbanização da região do sudeste do Rio Grande do Sul, no século XVIII e início do XIX e sua relação com as práticas urbanísticas (hierarquia de vias, rua Direita, quarteirão alongado), instrumentos de legislação (cartas régias) e a repercussão dos tratados dos engenheiros militares na composição das dimensões dos elementos urbanos (rua, quarteirão e lote).
Sobre Memória: Entrevista com Ivan Izquierdo
Authors: Bezerra Daniele Borges
Published: August 2024

A memória, atualmente, é tema de pesquisas com enfoque interdisciplinar, sendo que cada vez mais é possível encontrar pesquisadores e cientistas de diferentes áreas contribuindo para a problematização e compreensão dos fenômenos que envolvem a memória. Nesse sentido, com o objetivo de enriquecer as discussões sobre memória no campo das ciências sociais, buscou-se um diálogo com a Neurociência a partir de entrevista com uma das maiores referências no estudo da memória e seus mecanismos, o Prof. Dr. Ivan Antônio Izquierdo. Esta entrevista foi realizada no dia dezesseis de abril de 2013, no Hospital São Lucas da Pontifícia Universidade Católica do Rio Grande do Sul (PUC/RS), em Porto Alegre.
Educação Patrimonial e Memória: Projeto de Integração Regional da Quarta Colônia
Authors: Fagan Elaine Binotto , Padoin Maria Medianeira
Published: August 2024

Este ensaio visa desenvolver a temática “Patrimônio Cultural, Identidade e Memória na Quarta Colônia de Imigração Italiana do RS”, no ambiente escolar, por meio de uma proposta metodológica via Educação Patrimonial. Um dos principais aspectos destacados é mostrar a necessidade de conhecer a própria história e a própria cultura e assim tornando o ser humano mais atento, preocupado e defensor de seu local de convívio. A escola deve ser a protagonista destas ações, onde conceitos e valores culturais são despertados e desenvolvidos de forma a mostrar a importância da preservação da história e da memória. Portanto, o presente trabalho contribui para a preservação, valorização e disseminação da história e da cultura ítalo-brasileira na Quarta Colônia do Rio Grande do Sul associando o ambiente escolar e cultura local e regional onde os estudantes estão inseridos.
FİLAMENTLİ FUNGUSLARIN (KÜFLERİN) ALTERNATİF BESİN KAYNAĞI OLARAK DEĞERLENDİRİLMESİ
Authors: Kaya Burcu , Yuceer Yonca
Published: August 2024

İnsan nüfusu ile artan besin ihtiyacı, gelecekte yeterli besin maddelerini içeren bir diyete erişimi giderek zorlaştıracaktır. Mevcut bitkisel ve hayvansal kaynaklı besinlerin varlığı iklime bağlıdır ve uzun vadede çevreye olumsuz etkileri olmaktadır. Bu nedenle araştırmacılar, sürdürülebilir diyete geçişi kolaylaştırmak ve teşvik etmek amacıyla alternatif kaynak arayışındadırlar. Filamentli funguslar karmaşık substratları parçalayarak değerli ürünlere dönüştürebilmektedir. Fermantasyon yoluyla elde edilen fungus biyokütlesi, protein, enzim, antioksidan madde, vitaminler, mineraller, çoklu doymamış yağ asitleri, organik asit ve lif gibi önemli esasiyel bileşiklerin kaynağıdır. Filamentli bir fungus olan Fusarium venenatum biyokütlesinden üretilen et benzeri dokuya sahip alternatif besin kaynağının en çok bilinen ticari örneği Quorn’dur. Son dönemde yapılan çalışmalar filamentli fungusları kullanarak gıda endüstrisi atık ve yan ürünlerinden katma değeri yüksek ürünler geliştirilmesi ve sürdürülebilirliğin sağlanmasına odaklanmıştır. Bu derleme filamentli funguslar kullanılarak gıda atık veya yan ürünlerinden biyokütle üretimi, bileşimi ve sağlık üzerine etkileri konularında yapılan çalışmaları kapsamaktadır.
The nexus between logistics competitiveness, logistics carbon emission efficiency and industrial structure upgrading: Evidence from China
Authors: Zhou Guanglan , Fei Yulian , Feng Chengkai
Published: August 2024

The rapid development of the logistics industry has made considerable contributions to China’s industrial transformation and economy soaring. However, the improvement of logistics competitiveness often leads to high carbon emissions. Understanding the dynamic relationship between logistics competitiveness, logistics carbon emission efficiency, and industrial structure upgrading is of great significance for promoting the high-quality development of regional logistics under the context of the carbon-neutrality target. This study employed the panel vector autoregression (PVAR) model to analyse the relationship between logistics competitiveness, logistics carbon emission efficiency, and industrial structure upgrading based on the data from 30 provincial – regions in China for the period of 2007–2021. Meanwhile, the impulse response function was used to reflect the dynamic relationship between the variables of the model, and using variance decomposition to display the percentage change of one variable affected by another variable. The results show that there are self-adjustment effects in logistics competitiveness, logistics carbon emission efficiency, and industrial structure upgrading. Besides, a U-shaped effect is observed from the effect of logistics competitiveness on logistics carbon emission efficiency. It shows a negative impact in the short term and a positive impact in the long term. And it is the same as the effect of logistics carbon emission efficiency on logistics competitiveness, indicating the existence of the time-lag effect. Moreover, upgrading industrial structures has a positive promoting effect on both logistics carbon emission efficiency and logistics competitiveness. Thus, this research provides a unique perspective by exploring how to improve the development of the logistics industry by discussing the nexus between logistics competitiveness, logistics carbon emission efficiency, and industrial structure upgrading.
WOUND DRESSING WITH TEXTILE DRESSING APPROACH: A REVIEW
Authors: Shahidi Sheila , Moazzenhi Bahareh , Kalahroodi Hosseini Kimiasadat , Mongkholrattanasit Rattanaphol
Published: August 2024

To help healing, protect and care the wound from additional damage, a sterile dressing is applied to wound and injured area. Wound dressing can be a sterile pad or compress that directly contact with the wound area. Nowadays, different models of wound dressings are used in the medical field. In this review paper different wound dressings and efforts made on the textile based wound dressings discussed.
Structural electronic and thermodynamic properties of CdX(X: S, Se, and Te) cadmium chalcogenides compound
Authors:   Energy, Environnement, and System Information  Laboratory, Sciences and Technologies Faculty, Ahmed Draya University,  Adrar, Algeria, Ouahab A. , Boudaoud L. ,   Energy, Environnement, and System Information  Laboratory, Sciences and Technologies Faculty, Ahmed Draya University,  Adrar, Algeria, Boudaoud N. ,   Polymer Materials Laboratory, Chemistry Faculty, University of Sciences and Technology HouariBoumediene, Algiers, Algeria, Bradai H. ,   Energy, Environnement, and System Information  Laboratory, Sciences and Technologies Faculty, Ahmed Draya University,  Adrar, Algeria, Hachemi N. ,   Energy, Environnement, and System Information  Laboratory, Sciences and Technologies Faculty, Ahmed Draya University,  Adrar, Algeria, Menezla S. ,   Modeling and Simulation Laboratory in Materials Science (LMSSM), Faculty of Sciences, Djillali Liabes University, Sidi-Bel-Abbes, Algeria, Bounefla N. ,   Energy, Environnement, and System Information  Laboratory, Sciences and Technologies Faculty, Ahmed Draya University,  Adrar, Algeria
Published: August 2024

The structural and electronic properties of (CdS, CdSe, and CdTe) compounds in rock-salt, zinc-blend, and wurtzite crystal structures were calculated using ab initio calculation. In addition to these properties, the thermodynamic properties were added advantage to clarify their comportment as temperature variation. Under the context of density functional theory DFT, the calculations were carried out using the full potential linearized augmented plane wave FP-LAPW approach. The generalized gradient approximations GGA-PBE established by Perdew-Burke-Ernzerhof and the local density approximation LDA and modified Bucke Jhonson have both been employed for the exchange-correlation energy and related potential MBJ. The results show that the zinc-blend phases were the stable crystal structure for all compounds. The lowest direct band gap is found in the B3 phase for CdX, close to the experimental value. The values of band energies of CdS, CdSe, and CdTe were estimated to be 2,463 eV, 1,76 eV, and 1,532 eV, respectively. In general, this work fits well with other experimental and theoretical results. The quasiharmonic Debye theory is used to determine the impact of temperature and pressure on thermodynamic properties. This includes the calculation of pressure and temperature dependence, as well as the analysis of how heat capacity, thermal expansion, and the Debye temperature are affected by these variables.
Photovoltaic performance of pristine and arsenic doped hybrid perovskite
Authors:   Department of Physics, Dhanauri P.G. College, Dhanauri, Haridwar, Uttarakhand, 247667, India, Sharma N. , Tiwari P. ,   Department of Physical Sciences, Banasthali Vidyapith, Rajasthan, 304022, India, Choudhary S. ,   Department of Physics, Constituent Government Degree College, Richha Baheri, Bareilly, 243201, India, Mittal M. ,   Department of Physics, Dhanauri P.G. College, Dhanauri, Haridwar, Uttarakhand, 247667, India, Saini A. ,   Department of Physics, Dhanauri P.G. College, Dhanauri, Haridwar, Uttarakhand, 247667, India, Singh P. ,   Department of Electronics and Communication Engineering, KIET Group of Institutions, Ghaziabad, 201206, India, Saraswat D. ,   Department of Physical Sciences, Banasthali Vidyapith, Rajasthan, 304022, India, Kumari A. ,   Department of Physics, S. V. College, Raja Mahendra Pratap Singh State University, Aligarh, 202140, India, Verma A. S. ,   Division of Research and Innovation, School of Applied and Life Sciences, Uttaranchal University, Dehradun, 248007, India
Published: August 2024

Under the scope of all-solid-state perovskite solar cells, the important role of methylammonium lead halide film lies in facilitating the formation of a photo-generated electronrich film, which directly affects the overall photovoltaic performance. This study introduces a novel chemical strategy aimed at increasing the quality of perovskite film through minimal arsenic doping. The result of the inclusion of arsenic is characterized by high crystalline grains in the attainment of a homogeneous, uniform and ancient perovskite film. The analysis of the UV-Visible spectra indicates that the perovskite film, which is produced under sequential conditions, displays light extraction of electrons for light absorption, more effective electron transport, and adjacent electron transport layer. Different morphology obtained through customized perovskite conditions contribute to a better short-circuits current, which improves overall cell performance. Arsenic-doped perovskite-based solar cells demonstrate a 1.55% increase in power conversion efficiency compared to their nondecorated counterparts, exhibiting 0.20% efficiency. The outcomes not only offer a straightforward method for enhancing perovskite films but also introduce an innovative perspective on constructing high-performance perovskite solar cells using minimal amounts of arsenic, thereby minimizing toxicity in the fabricated solar cells.
Variability of morphometric characteristics and genetic differentiation according to ISSR markers in Adonis villosa Ledeb. (Ranunculaceae) in the Altai Republic
Authors: Жмудь Е.В. , Кубан И.Н. , Ачимова А.А. , Папина О.Н. , Дорогина О.В.
Published: August 2024

Исследованы численность и морфогенетические показатели стародубки пушистой (Adonis villosa Ledeb.) – уязвимого вида в Республике Алтай (РА). Впервые выявлена генетическая дифференциация в шести ценопопуляциях (ЦП) A. villosa с использованием ISSR-маркеров и вариабельность морфометрических признаков у особей из четырех ЦП в РА. В изученных ЦП обнаружено сходство по вариабельности морфометрических признаков, а также снижение численности зрелых генеративных особей в1,5–2,0 раза за период с 2017 по2023 г. Генетическая структура исследована с использованием шести праймеров: М-9, UBC-834, UBC-830, UBC-857, UBC-840, UBC-811. Из них наиболее информативным оказался UBC 857. У представителей шести изученных ЦП нами выделены четыре варианта по распределению ISSR-маркеров и обнаружено высокое сходство (88–99 %) по распределению ISSR-маркеров между ЦП A. villosa. Внутрипопуляционное сходство у особей этого вида также высокое и составило 97 %. Вероятной причиной этого явления может быть малочисленность зрелых генеративных особей в ЦП (не более 10) и их пространственная изоляция. В Северном Алтае для A. villosa необходим особый подход к сохранению из-за гомогенности генетической структуры ЦП, что приводит к уязвимости этого вида.

The abundance and morphogenetic indicators of the Adonis villosa Ledeb., a vulnerable species in the Altai Republic (AR), have been studied. For the first time, genetic differentiation in six cenopopulations (CP) of A. villosa using ISSR markers and variability of morphometric characters in individuals from four CPs in the AR were revealed. Similarities in the variability of morphometric characters in the studied CPs were revealed, as well as a decrease in the number of mature generative individuals by 1.5–14.0 times over the period from 2017 to 2023. The genetic structure was studied using 6 primers: M 9, UBC 834, UBC 830, UBC 857, UBC 840, UBC 811. Of these, UBC 857 turned out to be the most informative. In representatives of the six studied CPs, we identified four variants in the distribution of ISSR markers, and a high similarity in the distribution of ISSR markers between the A. villosa CPs (88–99 %) was found. Intrapopulation similarity among individuals of this species is also high and reached 97 %. The probable reasons for this phenomenon are the small number of mature generative individuals in the CP (no more than 10) and their spatial isolation. In Northern Altai, A. villosa individuals have a homogeneous genetic structure, which leads to the vulnerability of this species. This species requires a special approach to conservation in natural conditions and culture.
Vertical alveolar ridge distraction using intraoral distraction device after ablative surgery for treatment of gingival squamous cell carcinoma in patient under chemotherapy: a case report
Authors: Hegab Ayman , Elmasry Mohamed
Published: August 2024

Background: Squamous cell carcinoma is a malignant epithelial neoplasm characterized by variable clinical manifestations. When located in the gingiva, this neoplasm may mimic common inflammatory lesions. This is a case report of gingival Squamous cell carcinoma treated by marginal mandibular resection and then, reconstruction by distraction osteogenesis during chemotherapy. Patient: In a 50-year-old female patient marginal resection was done for treatment of gingival Squamous Cell Carcinoma and an attempt was made to reconstruct the mandible using distraction osteogenesis during contaminant chemotherapy. Result: Reconstruction of the mandible using distraction osteogenesis was successful with no adverse effect of the chemotherapy on the bone for formation by the distraction. Both soft tissue and bone healing were uneventfully. Conclusion: This case indicates that DO and chemotherapy could be performed simultaneously with no complications.
Republica, partidos políticos e imprensa no Para: articulações e estratégias de usos dos jornais (1886-1898)
Authors: Gaia Farias William , de Almeida Moura Daniella
Published: August 2024

O uso da imprensa periódica para as pesquisas em história é recorrente no âmbito das ciências sociais, assumindo relevância na produção científica, pois permite importantes análises sobre valores sociais e culturais, questões políticas e econômicas, além de possibilitar o entendimento a respeito das visões de mundo de classes e grupos sociais. Muitas vezes, os jornais são usados pelos pesquisadores somente para confirmar suas análises apoiadas em outros tipos de documentação, ou ainda, para refutar determinadas ideias. No entanto, agindo dessa maneira, pode-se fazer um uso superficial, instrumental e bastante ingênuo, conferindo aos jornais o atributo de “meros receptáculos de informações”
As oposições políticas no Rio Grande do Sul da Primeira República
Authors: Fertig André , Maria Parcianello Saccol Tassiana
Published: August 2024

A história política do Rio Grande do Sul na Primeira República foi caracterizada pela predominância do Partido Republicano Rio-Grandense (PRR) no poder. Contudo, a despeito dessa hegemonia, uma forte oposição se constituiu ao longo do tempo, tendo como protagonistas, de um lado, os próprios dissidentes do Partido Republicano e, de outro, os membros do Partido Federalista.
Los medios audiovisuales: ¿aliados o enemigos del Estado en la divulgación cultural costarricense? (1950-2000)
Authors: Ruiz Siles Yanina
Published: August 2024

El objetivo de esta investigación es explorar el papel que han jugado los medios audiovisuales de las instituciones estatales en la divulgación de la cultura e identidad nacional costarricense. La cultura es muy susceptible a transformaciones asociadas con factores externos y usualmente se relaciona a los medios audiovisuales con la divulgación de la cultura de masas y con la transformación y/o pérdida de la cultura nacional. Con este propósito, se analizaron los tres medios audiovisuales más utilizados durante la segunda mitad del siglo XX, es decir el cine, la radio y la televisión, para demostrar su utilización por parte del Estado a lo largo del período de estudio. A través de la legislación nacional, así como de las memorias institucionales del Ministerio de Educación Pública (MEP) y del Ministerio de Cultura, Juventud y Deporte (MCJD) de los años 1950 al 2000, se analizó el comportamiento de las entidades públicas en los medios. El estudio evidenció que la cultura audiovisual ha evolucionado significativamente en el último siglo y que su impacto en la cultura es incuestionable. La función de los medios audiovisuales se adapta a los contextos, por lo cual las políticas del Estado en materia de divulgación cultural se han innovado y renovado a través de los años.
El proceso de enseñanza y aprendizaje en la construcción del concepto de área y perímetro. Perspectivas de las investigaciones científicas
Authors: Jaimes Pérez Mary Daniela , Arévalo Duarte Mayra Alejandra , García García Miguel Ángel
Published: August 2024

En el proceso de aprendizaje, el estudiantado presenta falencias relacionadas con la correcta interpretación en los ejercicios prácticos, al tener que encontrar el perímetro de una figura plana, lo estipulan como la medición opuesta (área). La presente investigación pretende analizar la comprensión que tiene el estudiantado de Educación Básica Secundaria respecto al concepto de área y perímetro de las figuras planas a partir de los procesos de enseñanza-aprendizaje del personal docente. Para lo cual, se efectúa una indagación bibliográfica mediante la metodología de investigación PRISMA orientada por los interrogantes que configuran las categorías de análisis. Con la rejilla de datos se identificaron 392 documentos, procesados mediante las fases de filtración y separación para obtener una selección final de 50 documentos que cumplieron con el objetivo de investigación. Como resultado se obtienen cuatro categorías centrales que permiten describir la comprensión a través del: 1) uso de estrategias metodológicas y didácticas en el aprendizaje, 2) resolución de problemas, 3) fortalecimiento del conocimiento disciplinar y 4) desarrollo de competencias geométricas. Estas categorías, permiten comprender los conceptos de medida en situaciones con contexto, que se particularizan a través del conocimiento pedagógico–didáctico de las personas docentes como elemento fundamental para abordar las situaciones geométricas de forma efectiva y las relaciones que se pueden establecer entre el área y perímetro. Concluyen que el concepto de área y perímetro presenta métodos de aprendizaje únicos, por lo que se crean estrategias y herramientas que, al incorporarse a las actividades de aula, facilitan su comprensión.
Retos de la inclusión educativa: la percepción de los estudiantes normalistas
Authors: Pérez Casillas Irma , Prado Salazar Juan Ramón
Published: August 2024

La presente comunicación expone uno de los retos que enfrenta la formación inicial docente; hoy en día es indispensable reconocer la Educación para Todos, donde las personas accedan a su legítimo derecho a la educación sin importar sus limitaciones, diferencias o condiciones; el mandato de los organismos internacionales señala Educación para Todos en igualdad de circunstancias. A partir de la necesidad de contar con cursos destinados a la enseñanza de la inclusión educativa, se recuperan las percepciones del alumnado normalista sobre las competencias que desarrollan durante el proceso de su formación para realizar intervenciones educativas en estudiantes que presentan capacidades diferentes o barreras para el aprendizaje y sus áreas de oportunidad. El presente trabajo se deriva de una experiencia docente. Se emplea la metodología cualitativa, se aplica el instrumento y se considera el razonamiento que formulan los normalistas respecto al tema de la inclusión educativa. Bajo el método interpretativo se comenta su narrativa, así mismo, se recurre a la búsqueda de información en bases de datos como Redalyc, Scielo, Dialnet y buscadores como Google Academic. Los criterios de búsqueda giran en torno a los términos principales como inclusión educativa, formación normalista, entre otros, considerando los últimos diez años. Se encontraron una gran cantidad de investigaciones nacionales e internacionales, revisión documental y documentos legales de los cuales se extrajo aquella información que se considera relevante para el tema en cuestión. Entre las conclusiones se señala que a pesar de las necesidades que vivencian los normalistas, toman cursos externos enfocados a la atención del alumnado que enfrentan barreras de aprendizaje. Lo anterior favorece que el estudiantado en formación fortalezca su conciencia profesional y se inserte como agente social. De manera que atienda, desde los enfoques educativos vigentes, las necesidades actuales referidas en la Agenda 2030 para el Desarrollo Sostenible, el cual señala la necesidad de crear sociedades más inclusivas y equitativas. Las nuevas generaciones de docentes deben asumir el compromiso por hacer suyos los propósitos del enfoque inclusivo y sean corresponsables de atender por igual a las personas. Así, el futuro de la educación será favorecedor, con estricto apego a la igualdad y respeto a los derechos humanos.
Desarrollo de primera defensa de Trabajo Final de Investigación Aplicada a la Maestría realizada en el Metaverso en Costa Rica
Authors: Obando Zambrano Beyker Stefan
Published: August 2024

La presente investigación describe los aspectos fundamentales a considerar al desarrollar la defensa de un Trabajo de Investigación Aplicada en el Metaverso. Para cumplir con esta finalidad, se exploran temas como el costo de implementar este tipo de actividades y los requisitos de hardware, software y conectividad necesarios para lograr con éxito una actividad en el Metaverso. La metodología adoptada para alcanzar este propósito es descriptiva, con un enfoque mixto. Tomando como referencia la defensa del Trabajo Final de Investigación Aplicada realizada en el metaverso en junio de 2023, vinculada al posgrado en Tecnologías de Información y Comunicación para la Gestión Organizacional de la Universidad de Costa Rica. A través de esta prueba piloto, se logró evidenciar la viabilidad de utilizar estas tecnologías en entornos educativos. Consolidándose como una herramienta novedosa, para la creación de sesiones de exposición de trabajos universitarios en el Metaverso. Además, se destacó la importancia de considerar aspectos como los efectos de la utilización prolongada de la realidad virtual, los impactos a nivel fisiológico y los detalles de diseño de los dispositivos. Finalmente, se subraya la necesidad de establecer nuevas regulaciones que proporcionen un protocolo claro sobre el uso de la tecnología de realidad virtual y Metaverso en el ámbito académico. El propósito de estas regulaciones es incentivar y guiar adecuadamente la utilización de estas tecnologías a nivel académico, asegurando su integración de manera efectiva y responsable.
Features of T-cell and humoral immunity of patients with acute coronary syndrome, with and without COVID-19, depending on/peripheral blood B-lymphocytes with the phenotype CD3–CD19+CD5+ level
Authors: Safronova E. A. , Ryabova L. V. , Zurochka A. V. , Dobrynina M. А.
Published: August 2024

The aim of the work was to assess the T-cell and humoral immune arms in patients with acute coronary syndrome (ACS) recovered from or not exposed to COVID-19. 86 men with ACS aged 40 to 65 years old, who suffered or not exposed to COVID-19, which required stenting of coronary arteries, were examined. Depending on the peripheral blood B-lymphocyte CD3–CD19+CD5+ level and the former COVID-19 history, all patients were divided into 6 groups. Of the previously COVID-19 exposed subjects CD3–CD19+CD5+ lymphocytes were at: reduced (group 1), normal (group 2), increased (group 3) level. COVID-19 unexposed subjects had CD3–CD19+CD5+ lymphocyte level: reduced (group 4), normal (group 5), increased (group 6). The most severe clinical manifestations were observed in group 1: with a larger rate of stent thrombosis and increased mortality. In absolute numbers, T-lymphocytes were significantly lower in group 1 compared to other groups, except group 4. The lowest both relative and absolute T-helper cell counts were recorded in covid-19 patients, with reduced CD3–CD19+CD5+ cell level. NK-lymphocytes both in relative and absolute level were significantly (p 0.05) higher in patients who suffered from COVID-19 as compared to those in patients unexposed to previous COVID-19. Percentage of late-activation T-regulatory cells was minimal in patients with former COVID-19 along with high B-lymphocyte CD3–CD19+CD5+ level, which significantly (p 0.05) differed from those in subjects lacking former COVID-19 history. In addition, significantly lower B-lymphocyte CD3–CD19+CD5– level was found in group 1 and 4. The IgM level peaked in group 5 — subjects lacking former COVID-19 history and having normal CD3–CD19+CD5+ cell level that significantly differed in comparison with that of in group 1, 2, 3. At the same time, the maximum value of IgG level was recorded in COVID-19 patients with normal CD3–CD19+CD5+ cells, and significantly differed from those found in group 5 and 6. C1-inhibitor level was higher in group 3 that significantly differed from that in other groups. SARS-CoV-2-specific IgG and IgM levels were significantly higher in COVID-19-positive vs. COVID-19-negative patients. Conclusion. In patients who have suffered COVID-19 with low B-lymphocyte CD3–CD19+CD5+ level, a significantly compromised immune protection was noted in comparison with other groups: a decline in total T-lymphocyte, T-helper, early- and late-activation T-lymphocyte, T-regulatory cell, B-lymphocyte CD3–CD19+CD5– levels, which was associated with a more severe disease course characterized by stent thrombosis and large mortality.
Electrolytes for solid state lithium batteries in the [N13pip]ClO4-LiClO4-Al2O3 system for solid state lithium batteries
Authors: Kyzlasova Daria , Ulihin Artem , Uvarov Nikolai
Published: August 2024

The transport, electrochemical, structural, and thermal properties of electrolytes in the ternary system [N13pip]ClO4-LiClO4-γ-Al2O3 (N13pip is N-methyl-N-ethyl-piperidinium cation) were investigated at the molar ratio [N13pip]ClO4:LiClO4 = 0.82:0.18. The addition of alumina leads to a change in the thermodynamic properties of the [N13pip]ClO4-LiClO4 system that can be explained by a partial transfer of lithium perchlorate from the organic phase to the surface of γ-Al2O3. The highest ionic conductivity of 6.2∙10–4 S/cm at 110 °C was observed for the composition containing the volume fraction (f) of γ-Al2O3 equal to 0.5. The increase in conductivity compared to the binary system 0.82[N13pip]ClO4-0.18LiClO4 is achieved due to the amorphization of the organic salt near the salt/LiClO4/oxide interfaces. Galvanostatic cycling with Li electrodes shows that composites with f = 0.5 are stable at 110 °C for at least 68 charge/discharge cycles, and the electrolyte is shown to be electrochemically stable up to 5 V. This system can be used as a solid-state electrolyte in lithium-ion current sources.
"Quattuor sanctissimi episcopi": not just St. Patrick
Authors: Kuchtenkova O. A.
Published: August 2024

In the 17th century, St. Ibar, Ailbe, Ciaran, and Declan were called quattuor sanctissimi episcopi (‘the four most holy bishops’). It is thought that they played a pivotal role in the conversion of Ireland, especially its southern parts, and were preaching Christianity there before or at the same time as St. Patrick. We learn about them from a number of sources, including Vitae Sanctorum Hiberniae, Martyrology of Oengus, Martyrology of Donegal, Annals of the Kingdom of Ireland by the Four Masters, Book of Leinster, and Speckled Book. They are the founders of monasteries and the episcopal sees in Saigir (St. Ciaran), Emly (St. Ailbe), and Ardmore (St. Declan). St. Ibar founded the monastery on the Isle of Begerin. Their veneration is slowly building up again. The paper represents an attempt at systemising what we know about "the four bishops" from their Lives, the annals, and other sources mentioning them. The aim of the article is to place the aforementioned Saints within the life of the Irish society and Church; distill their distinctive features, spiritual, and social role within the early Medieval Church of Ireland (by analysing narrative patterns, genealogies, and mentions); and describe the development of their modern-day cult. While not claiming to present a definitive and exhaustive answer to these questions, the present paper is nevertheless part of an ongoing research into the subject.
The role of the Church during the First War of Scottish Independence
Authors: Mikhailova P. D.
Published: August 2024

The work examines the actions taken by the Scottish Church during the First War of Scottish Independence (1296– 1328), as well as the preliminary period starting from 1286. The main objectives are to determine the direct role of the Scottish clergy in diplomatic and political activities, to assess the impact on the national liberation movement, as well as to study the position of the Scottish Church in the Christian world at the end of the First War of Independence. Great attention is given to the propaganda activities of the bishops, as well as the relationship of the secular and spiritual authorities with the Roman Church before and after 1302. The transformation of the position and structure of the Scottish Church in relation to the Roman See and the entire Christian world, both legally and spiritually, is analyzed.
History of Irish Church at the turn of 19th century and The Antiquities of Ireland by Edward Ledwich
Authors: Zhivlova N. Yu.
Published: August 2024

The article examines the book "The Antiquities of Ireland" by Edward Ledwich, published in two editions — in 1790 and 1804. The work, which was very popular at the time, is now almost forgotten, but nevertheless, the figure of Ledwich still arouses the interest of specialists in Irish historiography and the history of thought. The main topic of the work is the analysis of the history of the Irish Church in Ledwich’s book and Ledwich’s use of Irish historical sources proper.
Damage detection of a cable-stayed footbridge using multiple damage modelling and ANNs
Authors: Nunes Danilo de Santana , Brito José Luis Vital de , Doz Graciela Nora
Published: August 2024

A routine for damage detection based on multiple damage modelling and artificial neural networks (ANNs) is presented in this article. The routine aims to identify the existence and location of damage, along with the most damaged elements. The first step in the routine is to define ‘critical’ regions based on stresses and deformations of the updated numerical model of the structure, as well as the probable order of occurrence in the case of multiple damage by simulating different scenarios. The second step is to train the ANN using the natural frequencies of intact and damaged numerical models as input data, with vectors indicating the position and magnitude of the damage as the expected output. A feed-forward back-propagation ANN was adopted. The approach was used to evaluate a cable-stayed footbridge. A new dynamic test was performed and a vector composed of the identified frequencies was input into the network, which indicated the existence of possible damage. The provided damage scenario was applied to the updated model, along with the experimentally obtained prestressing forces of the stays. The maximum difference between the frequencies of the updated and damaged numerical model with the damage vector provided by the network and the frequencies experimentally identified in the new test was 1.80%.
Framework for ergonomic design of control centres in underground coal mines - A Serbian experience
Authors: Grozdanovic M. , Marjanovic D. , Ilic M.
Published: August 2024

We present a framework for solving the problem of functional compatibility between process control equipment in control centres at underground mines and operator capabilities. The equipment incorporates displays of current ventilation, gas, and fire hazard data, status of alarm and early warning systems, a voice communication subsystem, and facilities for recording and printing of data and reports. The layout of the existing control panel is compared with a recommended design. The basic principles of ergonomic design and arrangement of the controls and indicators, as well as ease of use, type of operations carried out with these controls, and operators' viewing angles are discussed. The objective is to improve the usability of control panels, display boards, and graphic screens so as to enhance the functioning of control centres and optimize control of technological processes in coal mines.
Compositing and regularization of drillhole data for geostatistical resource estimation
Authors: Palmer L.W.
Published: August 2024

Compositing or regularization of drillhole data is common practice in mineral resource estimation and is deemed a necessary step in producing unbiased estimates of mineral resources and reserves. Commonly, data are collected over irregular distances due to the varying relative thicknesses of lithologies drilled or sampling/assaying strategies. This necessitates data transformation to regular lengths of equal size to ensure that all data have the same sample support. However, there have been few detailed publications on the effect of this process on the composited data that are subsequently taken forward for the estimation process. In this paper, three currently available compositing methods are reviewed and the effects of inappropriate compositing methodologies presented. It is shown through a case study that compositing samples to different lengths leads to changes in the average and variance of the grades in the drillcores in the dataset, which will impact the final estimated value. These differences are exacerbated by breaks or gaps in data where, for a variety of reasons, there has been no data collection or data have been lost. The importance of appropriately treating blank and zero data is also presented. Globally, these differences might be minimal, but locally may be substantial, affecting the efficiency of the estimation and subsequent use of the results in, for example, mine planning and reconciliation. Further detailed investigation of compositing practices is required if the full implications of compositing are to be understood and any induced bias effectively defined.
FSSC 22000 scheme as an effective strategy for producing safe and quality food
Authors: Rodríguez-Tineo Roger , Rodríguez-León A. , Solano-Gaviño Juan Carlos
Published: August 2024

El objetivo fue evaluar la mejora en la gestión de la calidad e inocuidad en la empresa América Alimentos S.R.L., a partir de la implementación del esquema FSSC 22000+Quality en la producción de arroz fortificado destinado a programas sociales. En primera instancia, se formó un equipo de trabajo multidisciplinario comprometido con la mejora continua, luego se definieron los objetivos y alcance del sistema. A partir del análisis situacional inicial, se plantearon los escenarios estratégicos para la empresa. Asimismo, se identificaron los riesgos y establecieron acciones de mitigación, con foco en la actualización de los programas pre requisitos y establecimiento del plan HACCP. Resultado de la implementación, se verifica una reducción del 40% en productos no conformes, un incremento del 25% en eficiencia de producción y una disminución del 15% en microorganismos patógenos. Además, se logró un análisis costo-beneficio favorable con un retorno de S/ 2,88 y un VAN de S/ 121 065,26. El esquema FSSC 22000+Quality representa un paso significativo hacia la mejora de la gestión de calidad e inocuidad, puesto que, es una estrategia efectiva para obtener productos seguros y de calidad.
Research progress on miRNAs function in the interaction between human infectious viruses and hosts: A review
Authors: Wang Xiaotong , Zhao Wenchang
Published: August 2024

MicroRNAs (miRNAs) represent a class of non-coding small RNAs that are prevalent in eukaryotes, typically comprising approximately 22 nucleotides, and have the ability to post-transcriptionally regulate gene expression. miRNAs exhibit diverse types and functions, with mechanisms of action that include cell differentiation, proliferation, apoptosis, and regulation of signaling pathways. Both viruses and their hosts can encode miRNAs, which serve as crucial effector molecules in the complex interaction between viruses and host cells. Host miRNAs can either directly interact with the virus genome to inhibit virus replication or facilitate virus replication by providing necessary substances. Viral miRNAs can directly bind to host mRNAs, thereby influencing translation efficiency, suppressing the immune response, and ultimately enhancing virus replication. This article comprehensively reviews the roles of miRNAs in virus-host interactions, aiming to provide valuable insights into viral pathogenic mechanisms and potential therapeutic approaches.
Double-bind как функциональный эквивалент противоречия в методологии социальных исследований
Authors: Иващук Ольга Федоровна
Published: August 2024

В статье предпринимается попытка сравнить две методологические фигуры, ядром которых является логическое противоречие: введенную Г. Бейтсоном конструкцию double-bind, работа с которой нацелена на устранение противоречия с помощью расселовской теории типов, и гегелевскую логическую форму противоречия, работа с которой предполагает культуру движения в противоречии и умение его разрешать. Оба метода оказались очень продуктивны в широком спектре социо-антропологических исследований XX века на Западе и в России, и оба вводились в действие в решающий момент при моделировании таких сложных феноменов, как психическая патология (Г. Бейтсон) / обучение слепоглухих (Мещеряков-Ильенков), творчество (Н. Элиас) / Э. Ильенков, отношения социального могущества, связывающие человеческих индивидов как имеющих общественную природу (марксистское по истокам понятие aperto homine у Н. Элиаса / марксов «ансамбль общественных отношений» у Э. Ильенкова / двойственность практик представления себя другим у И. Гофмана / противоречивость идеального как представления у Ильенкова). Анализируя способы исследовательской работы, которые предписывает double-bind или противоречие как философская категория, автор прослеживает, к каким различиям на «выходе» приводит различие этих подходов на «входе». Решающее из этих различий видится в том, что методология, толкующая double-bind лишь негативно, ограничивает анализ механизмами социального производства зла, тогда как методология разрешения противоречий помимо этого демонстрирует состоятельность в постановке и решении вопросов о социальном производстве творческой индивидуальности или высоких культурных образцов.
Дуология Пеннивайза
Authors: Павлов Александр Владимирович
Published: August 2024

Рецензия на: Burger A. IT Chapters One and Two. — Liverpool : Liverpool Univ. Press, 2023.