bluuebunny/crossref_metadata_2025 huggingface dataset:
IMPLEMENTACIÓN DE UN PROGRAMA DE AF PARA PROMOVER HABILIDADES SOCIALES EN ESTUDIANTES DE SECUNDARIA EN EL ARCHIPIÉLAGO DE SAN BERNARDO, BOLIVAR
Authors: Rodríguez Giraldo Airinth Andrea , Mantilla Sonia Carolina
Published: January 2025

Este estudio evalúa el impacto de un programa de actividad física “Actívate Juventud” en el desarrollo de habilidades sociales en estudiantes de secundaria de una institución etnoeducativa en el Archipiélago de San Bernardo. La investigación responde a las necesidades del contexto local, donde los estudiantes enfrentan retos significativos en cuanto a su desarrollo socioemocional y la interacción interpersonal. El programa, con una duración de 12 semanas, tuvo como objetivo mejorar las habilidades de los actividades físicas estructuradas. La metodología utilizada fue un diseño cuasiexperimental con pretest y postest, en el que participaron 39 estudiantes divididos en grupos de control e intervención. El grupo de intervención participó en actividades físicas dinámicas orientadas a fomentar el trabajo en equipo, la cooperación y la comunicación. Para la evaluación, se utilizó la Escala de Habilidades Sociales (EHS) de Gismero, que mide dimensiones clave como la autoexpresión, la defensa de los derechos como consumidor, la expresión de desacuerdos y la iniciación de interacciones positivas. Los resultados, analizados mediante el software IBM SPSS, mostraron mejoras significativas en las habilidades sociales del grupo de intervención en comparación con el grupo de control. En particular, los estudiantes demostraron una mejor comunicación y una mayor capacidad para interactuar de manera efectiva en contextos interpersonales. El estudio concluyó que la actividad física no solo mejora el bienestar físico de los estudiantes, sino que también contribuye de manera significativa al desarrollo de habilidades sociales esenciales para su desarrollo personal.
Industria 4.0, aplicación y tecnologías de la información en instalaciones portuarias de américa latina
Authors: Guerrero-Molina Maria Isabel , Vásquez-Suárez Yasmín Alexandra , Valdés-Mosquera Diana Mercedes
Published: January 2025

El artículo indaga la aplicación de la Industria 4.0, y tecnologías de la información en las instalaciones portuarias en América Latina. Se desarrolló un estudio mixto, seleccionando los puertos de Colón, Santos y Cartagena, empresas productoras, empresas de transporte internacional y agencias de aduana; luego se realizó  una revisión de literatura incluyendo técnicas bibliométricas, se utilizó la base de datos Scopus, se analizan 5 variables: procesos de monitoreo, equipos y maquinaria, integración de sistemas, robótica y otras tecnologías y por medio de un instrumento semiestructurado aplicado a los representantes de las empresas, quienes son los que comprenden la realidad de las operaciones del comercio internacional en los puertos antes mencionados. Así, las tendencias que marcan futuros estudios en el área portuaria son: Nuevas aplicaciones de las industrias 4.0 en la operación portuaria, la sostenibilidad portuaria a partir del uso de nuevas tecnologías, la implementación de energías renovables en los puertos, fuentes de financiación para la digitalización portuaria.
Application of machine learning for brain tumor diagnosis using magnetic resonance images: a comparative analysis
Authors: Kumar-Manilal Patel Rahul , Shah D. J.
Published: January 2025

A brain tumor is an abnormal growth of cells that may lead to cancer. MRI scans are the conventional method of diagnosing brain tumors. This paper investigates the potential of machine learning (ML) in interpreting MRI images for brain tumors. The study described applies and evaluates three different methods. The study applied and evaluated three different methods for identifying brain tumors: a self-defined a support vector machine (SVM), a Random forest (RF), and a convolution neural network (CNN). The Bra-TS 2018 dataset is used in this study on MRI brain images containing images of glioma, meningioma, pituitary, and no tumors. Python 3.11 was used for interpreting MRI images for brain tumors. The accuracy of the proposed CNN, RF, and SVM were found to be 99.29%, 99.06%, and 98.36%, respectively. The CNN approach has higher accuracy than innovative techniques.
Análisis de inyectores usando combustibles alternativos en motor
Authors: Riojas-González Héctor Hugo , Bortoni-Anzures Liborio Jesús , Martínez-Torres Juan Julián
Published: January 2025

La inyección del combustible es muy importante para la distribución y la mezcla aire-combustible dentro de la cámara de combustión para el rendimiento general del motor. El desarrollo tecnológico influye en gran medida para que se pueda inyectar el combustible directamente a gran presión, a través de uno o varios inyectores con un grado de penetración variado y en función del ángulo del inyector, todo esto para lograr reducir tanto el consumo de combustible como las emisiones, logrando mayor eficiencia y además adecuarlo para el uso de los biocombustibles. Este artículo se basa en una metodología de investigación científica a través de una revisión exhaustiva bibliográfica. La finalidad de esta investigación consiste en la necesidad de resaltar la necesidad del avance tecnológico en cuanto a inyectores se refiere para que estos puedan ser aplicados en combustibles alternativos como los biocombustibles. Entre los resultados más destacables consideramos que algunas estrategias de inyección pueden ser muy recomendables para aplicarlos en los biocombustibles, tal es el caso de la doble inyección, el tiempo de inyección avanzada del combustible piloto y alta presión de inyección junto con una sincronización avanzada. La estrategia de la inyección dividida puede ser una solución al igual que la inyección de tiempo retardado, ayudan a mejorar las condiciones del motor, adaptándose a las características de los combustibles alternativos. Se concluye que el desarrollo tecnológico en los inyectores es crucial para el uso futuro de los combustibles alternativos.
Aprendizaje basado en proyectos de William h. Kilpatrick para el aprendizaje de hematología en los estudiantes del quinto semestre del programa de bacteriología y laboratorio clínico de la Universidad de Pamplona
Authors: Peñaranda-Pérez Jesus Andres
Published: January 2025

El valor más importante de cualquier sociedad en todos los tiempos, es la persona, su bienestar, la calidad de vida y el desarrollo de las cualidades humanas, estas son posibles en la educación, por tanto, la educación es un valor para la persona, la sociedad, el estado; además, la educación actúa como ente de creación, búsqueda de nuevos valores, transmisión y construcción del campo cultural común y científico. En la actualidad la formación académica, precisa cambiar el desarrollo contenidos curriculares que tiene como finalidad la acumulación de conocimientos impartidos por el profesor que no da cabida al desarrollo libre, a los cuestionamientos, la investigación y a la formación integral. El Aprendizaje Basado en Proyectos (ABP) es un modelo de aprendizaje que permite sacar a flote la creatividad, curiosidad, capacidades de comunicación, trabajo en equipo y de análisis crítico, ya que centra el proceso educativo en el estudiante. Este trabajo de investigación busca Analizar la incidencia del ABP en el aprendizaje de Hematología, para esto se aplicó dentro de la investigación cualitativa la metodología investigación acción. En dónde se aprecia dentro de la realización de los ABP la significancia tanto del proceso de aprendizaje, como la calidad del aprendizaje y los resultados del amaestramiento de los estudiantes. Ya que, los mismos fomentan qué aspectos necesitan mejorar los estudiantes, así mismo, analizan problemas en la adquisición de conocimientos y con ello, emprender acciones encaminadas a construir una educación significativa. También, se destaca el hecho de que la ruta del conocimiento ABP ofrece aprendizaje táctico; por esto, debe aplicarse de manera consistente a la situación de cada estudiante, así como, a su vida diaria. Esto es algo a lo que debe prestar atención al identificar e implementar estrategias de aprendizaje; ya que, el proceso educativo involucra muchos participantes y contextos.
Evaluación comparativa de los estilos de aprendizaje en estudiantes universitarios de los cursos estadística y ciencia y sociedad
Authors: Ramírez-Quintero Freddy Antonio , Rojas-Gámez César Alfredo
Published: January 2025

El objetivo de este artículo es desarrollar un análisis comparativo con base en la evaluación de los estilos de aprendizaje en estudiantes de dos áreas disímiles del conocimiento: estadística, y ciencia y sociedad, identificando las orientaciones de futuras mejoras en función de las dimensiones del estudio. Metodológicamente, el trabajo es de campo, cuantitativo, inductivo, transeccional y correlacional, orientado a comprobar la hipótesis nula de que no hay diferencia en el comportamiento de las medias de estilos de aprendizaje entre ambos cursos. Se contó con una población de 27 estudiantes de V Semestre del curso Estadística y 22 estudiantes de II Semestre del curso Ciencia y Sociedad, de las carreras Licenciatura e Ingeniería en dos universidades del Estado Táchira, Venezuela, en el período agosto-diciembre 2023. La técnica de recolección fue la encuesta, a través del Cuestionario de Estilos de Aprendizaje de Felder y Soloman conformado por 44 ítems y cuatro pares de dimensiones de este modelo: activo/reflexivo, sensitivo/intuitivo, visual/verbal y secuencial/global. Cabe resaltar que este cuestionario posee una consistencia interna con con Alpha de Cronbach promedio de 0,89 y una confiabilidad Pearson promedio de 0,62, la cual fue recalculada obteniéndose un coeficiente de 0,739. En los resultados, se obtiene que los estilos que demuestran diferencia significativa estadística para ambos grupos, son el visual/verbal y secuencial/global, con ɑ<0,05 de -2,38887109 y -3,133702594, respectivamente. En el caso de los estilos activo/reflexivo, sensitivo/intuitivo, se aceptó la hipótesis y no se encuentran diferencias, las cuales se sujetan de resultados descriptivos similares especialmente en la sub-escala intuitiva. En todos los casos, los balances hacia la tendencia de la escala, en todos los casos, fue predominante en el curso de Estadística. Se concluye según los referentes teóricos, en procesos de pensamiento crítico y contextual requeridos necesariamente para ambos cursos.
Neural network quantification for solar radiation prediction: An approach for low power devices
Authors: Villamizar-Medina Brenda Alejandra , Soto-Vergel Angelo Joseph , Medina-Delgado Byron , Cardozo-Sarmiento Darwin Orlando , Guevara-Ibarra Dinael , Lopez-Bustamante Oriana Alexandra
Published: January 2025

Accurate solar radiation prediction leverages various machine learning techniques, with artificial neural networks (ANN) being the most common and precise due to their ability to detect and learn relationships between meteorological variables and solar radiation. Traditionally, training and deploying these models require high-capacity computers. However, the proliferation of low-power smart devices, such as embedded systems and mobile devices, necessitates exploring methodologies for implementing ANN on systems with limited computational resources. This paper proposes a quantized neural network model for solar radiation prediction, considering the hardware limitations of low-power devices like the Raspberry Pi RP2040 microcontroller. The methodology involves five stages: hardware and software selection, neural network development and quantization, microcontroller implementation, model validation, and result analysis. Experimental design allows detailed performance evaluation of quantized neural networks, demonstrating that the TensorFlow Lite Quantized Aware model is suitable for solar radiation prediction. Metrics such as root mean square error (RMSE) of 44.24 and R² of 0.96 indicate that the selected quantized model differs from the original non-quantized model by less than 0.5% in RMSE and 0.04% in R². The study concludes that implementing quantized ANN models on microcontrollers is a technically and economically viable solution for solar radiation prediction. Quantization enables complex predictive models to run on low-cost, energy-efficient devices, thereby democratizing advanced prediction technologies for critical applications like solar energy generation.
Discursos pedagógico-políticos sobre memoria histórica, convivencia y paz, en contextos educativos desafiantes
Authors: Leal-Leal Gisela Alexandra , Cataldo-González Héctor Mauricio
Published: January 2025

La investigación sobre discursos pedagógico-políticos orientados a formación en memoria histórica, convivencia y paz, en maestros de instituciones educativas públicas del Norte de Santander, se desarrolla bajo un diseño transeccional contemporáneo y método de teoría fundamentada, sugiere que dichos discursos cargados de intencionalidades y formas de poder, promueven la exclusión y las dinámicas de control. Las prácticas pedagógicas moldeadas por políticas educativas fragmentan el currículo, individualizan, y no abordar adecuadamente la memoria histórica, la convivencia ni la paz. En tal sentido, se cuestiona la neutralidad de la enseñanza por su carga política, pues propende hacia la educación superficial y empobrecida, que, aunada a condiciones sociopolíticas y violencia regional, refuerza las dinámicas opresivas, empero los esfuerzos de las escuelas por resistir y promover la educación transformadora. El estudio señala que los educadores reconocen el enfoque educativo territorial como promotor del pensamiento crítico, para abordar activamente cuestiones sociales, políticas y éticas, desafiar la narrativa estatal, y promover la comprensión profunda y diversa de los conceptos clave.
Palabras clave: Ciudadanía, Convivencia, Discursos pedagógico políticos, Memoria histórica y Paz.
Co-bots to improve occupational health and safety: preliminary analysis and integration proposal at Dana-Transejes, Colombia
Authors: Bellon-Monsalve Daniela , Garzon-Baquero Jossie Esteban , Pérez-Gutiérrez Pablo Andrés
Published: January 2025

The adoption of advanced technologies, such as automation and robotics, is crucial in the era of Industry 4.0 for optimizing industrial processes. This article presents a detailed analysis and integration proposal of a collaborative robot (Co-BOT) at the DANA-Transejes production plant, focusing on improving occupational health and safety for operators while increasing operational efficiency. The methodology employed follows a mixed-methods approach, combining the characterization of the current process with qualitative and quantitative data provided by the company, along with direct observations. This characterization identified operational inefficiencies and ergonomic risks related to the manual handling of heavy loads. Based on these findings, a proposal for Co-BOT implementation was developed, detailing technical, operational, and economic aspects of the integration. The estimated results project a 15% reduction in production cycle times, an increase of 375 additional boxes per year, and a significant improvement in safety, reducing the risk of work-related injuries by 100% for specific tasks. Moreover, a reduction in costs due to recovery breaks and medical leaves is expected, contributing to an annual economic saving of approximately $23,950 USD. This study demonstrates the feasibility of implementing Co-BOTs in Latin American industrial environments, highlighting their potential as a cost-effective solution for improving competitiveness and operational sustainability in regions with limited investment in technological innovation.
Long-term outcomes of transcatheter aortic valve implantation: a single-center observational study
Authors: Baranov A. A. , Badoyan A. G. , Khelimsky D. A. , Tsydenova A. Yu. , Zainobidinov Sh. Sh. , Boboshko V. A. , Krestyaninov O. V.
Published: January 2025

Aim. To evaluate remote outcomes of transcatheter aortic valve implantation (TAVI), including overall survival, freedom from cardiovascular death, permanent pacemaker implantation, and repeat valve replacement.

Material and methods. This retrospective observational study included 535 patients who underwent TAVI from April 2015 to January 2024. Patients who underwent TAVI for moderate aortic stenosis or severe aortic valve regurgitation (n=35) were excluded from the analysis. A total of 500 patients were included in the final analysis. Males accounted for 40,8%. Most patients had intermediate EuroSCORE II risk (5,2%), as well as low STS-PROM score risk (2,9%). The median follow-up period was 2,2 (0,6;4,1) years.

Results. Overall patient survival was 94%, 88%, 86%, and 58% at 1, 3, 5, and 8 years, respectively. Freedom from cardiovascular death was 97%, 90%, 78%, and 61% at 1, 3, 5, and 8 years, respectively. The cumulative freedom from permanent pacemaker implantation over the entire follow-up period was 89,4%, and from repeat pacemaker replacement — 98,8%. The factors influencing the long-term all-cause mortality were male sex, smoking, cancer, and left ventricular mass index. The only independent predictor of cardiovascular death was the STS-PROM score.

Conclusion. Our experience demonstrates satisfactory long-term outcomes of transcatheter aortic valve implantation in patients with severe aortic stenosis in terms of overall survival, cardiovascular death, permanent pacemaker implantation, and repeat pacemaker replacement. Independent predictors of all-cause death were male sex, smoking, cancer, and left ventricular mass index. The only independent predictor of cardiovascular death in the long-term period was the STS-PROM score.
Prevalence and risk factors for hospital-acquired pneumonia after on-pump cardiac surgery
Authors: Kalashnikova T. P. , Podoksenov Yu. K. , Kamenshchikov N. O. , Arsenyeva Yu. A. , Gorchakova M. B. , Kravchenko I. V. , Kozulin M. S. , Romanyuk E. T. , Kunitsin S. A. , Kozlov B. N. , Boshchenko A. A.
Published: January 2025

Aim. To study the prevalence and risk factors (RF) for hospital-acquired pneumonia (HAP) after on-pump cardiac surgery in a modern cohort of patients.

Material and methods. This retrospective analysis of the medical records of cardiovascular surgery patients, operated on in the period from January 1, 2022 to December 31, 2022. The study consistently included 417 patients who underwent on-pump cardiac surgery. The incidence and timing of HAP development were assessed. The influence of the main demographic, clinical, and perioperative factors on HAP risk was studied.

Results. The pneumonia prevalence per year was 27,6%, including after the Frozen Elephant Trunk (FET) procedure — 32%, after coronary artery bypass grafting (CABG) — 29,5%, after combined CABG and heart valve surgery — 26,2%, after isolated valve surgery — 25,9%, after thoracic aortic hemiarch replacement — 19,5%. Pneumonia developed on the 4,6±2,9 day after surgery. The risk of pneumonia increased with atrial fibrillation (AF) before surgery (odds ratio (OR) 3,17; 95% confidence interval (CI): 1,67; 6,02, p=0,0002), on-pump duration (OR 1,01; 95% CI: 1,00; 1,01; p=0,0006), aortic cross-clamping (OR 1,01; 95% CI: 1,00; 1,01; p=0,0002) and mechanical ventilation (OR 1,03; 95% CI: 1,01; 1,05; p=0,005). Pneumonia predictors were on-pump duration ≥96 min (sensitivity 67,7%, specificity 64,6%, AUC=0,681, p=0,0006) and mechanical ventilation ≥14 h (sensitivity 63,1%, specificity 69,3%, AUC=0,641, p=0,005), as well as preoperative AF (sensitivity 61%, specificity 75%, p=0,0002).

Conclusion. Preoperative AF, on-pump duration ≥96 min and mechanical ventilation ≥14 h serve as categorical and quantitative predictors of postoperative HAP in a modern cohort of patients.
Quantitative computed tomography coronary angiography in patients with acute myocardial infarction: association with cardiac biomarkers
Authors: Dasheeva A. S. , Vorobyeva D. A. , Suslova T. E. , Maltseva A. N. , Mochula A. V. , Ryabov V. V. , Mochula O. V. , Zavadovsky K. V.
Published: January 2025

Aim. To study quantitative parameters of coronary atherosclerosis, according to computed tomography coronary angiography (CTCA), and to identify their association with the level of cardiac biomarkers in patients with acute myocardial infarction (MI).

Material and methods. The study included patients with newly diagnosed MI. Depending on the coronary artery (CA) stenosis, two groups were formed: 1) MI with obstructive CA ≥50% (MICAD); 2) MI with non-obstructive CA <50% (MINOCA). All patients were assessed for cardiac biomarkers and underwent CTCA.

Results. The study included 31 patients as follows: MINOCA group consisted of 10 patients (5 men aged 68 (57; 79) years); MICAD group — 21 patients (13 men aged 62 (56; 68) years). When analyzing cardiac biomarker levels, a significant increase in cardiac troponin I (cTnI) levels was noted on the 4th (p=0,04) and on the 7th day (p=0,0009) in MICAD patients. A significant predominance of the volume (p=0,01) and burden (p=0,004) of low-density plaques was revealed in the MICAD group compared to MINOCA. In addition, MICAD patients had significantly increased values of the total atherosclerotic burden (p=0,01) and the total burden of the soft tissue component of plaques (p=0,04). A significant correlation was found between the plaque volume with cTnI on day 7 (ρ=0,52, p<0,05) and the plaque burden with cTnI on day 7 (ρ=0,43, p<0,05).

Conclusion. According to CTCA, the soft tissue component of plaques is associated with coronary atherosclerosis severity and myocardial damage in patients with MI. Soft tissue burden is a predictor of more severe myocardial damage, according to the cardiac biomarker data.
Efficiency of prognostic scores in predicting the new-onset atrial fibrillation in patients with ST-elevation myocardial infarction after percutaneous coronary intervention
Authors: Pak R. L. , Geltser B. I. , Shahgeldyan K. I. , Kuksin N. S. , Kokarev E. A. , Kotelnikov V. N.
Published: January 2025

Aim. To compare the effectiveness of the POAF, PAFAC, COM-AF, HATCH, ms2HEST and CHA2DS2-VASc scores for predicting new-onset atrial fibrillation (AF) in patients with ST-elevation myocardial infarction (STEMI) after percutaneous coronary intervention (PCI), as well as to develop novel prognostic models based on machine learning methods.

Material and methods. This single-center retrospective study was conducted using data from 3449 electronic health records of patients with STEMI. Two groups of individuals were identified, the first of which included 312 (9%) patients with new-onset AF in the postoperative period of PCI, and the second — 3139 (91%) patients without cardiac arrhythmia. To predict AF, univariate and multivariate logistic regression (ULR and MLR), decision tree (DT), artificial neural networks (ANN) were used.

Results. The study results showed that of the 6 analyzed scores, only 4 (mc2HEST, COM-AF, CHA2DS2-VASc and HATCH) have an acceptable prognostic potential for new-onset AF after PCI, which was documented by the AUC metrics in the ULR models developed on the basis of the sum of points of each score (AUC — 0,736, 0,731, 0,71 and 0,702, respectively). The integrative ANN model, combining the prognostic resource of 6 scores, demonstrated higher accuracy than the DT and MLR models (AUC — 0,759 vs 0,745 and 0,755, p-value<0,0001).

Conclusion. Further studies aimed at improving the quality of AF prognostic models in patients with STEMI after PCI may involve searching for novel predictors characterizing severity of coronary involvement and effectiveness of its restoration, inflammatory response, myocardial electrophysiological status, etc.
Comparative analysis of standard indices of myocardial perfusion scintigraphy and quantitative indicators of myocardial dynamic single-photon emission computed tomography in patients with non-obstructive coronary artery disease
Authors: Maltseva A. N. , Mochula A. V. , Grakova E. V. , Kopyeva K. V. , Tsygikalo A. A. , Zavadovsky K. V.
Published: January 2025

Aim. To compare standard indices of myocardial perfusion scintigraphy (MPS) and quantitative indicators of myocardial dynamic single-photon emission computed tomography (SPECT) in patients with non-obstructive coronary artery disease (NOCAD).

Material and methods. The study included patients with symptoms or signs of myocardial ischemia and NOCAD (<50%). All patients underwent dynamic myocardial SPECT with assessment of standard MPS indices (summed stress score (SSS), summed rest score (SRS), summed difference score (SDS)) and quantitative indicators (stress and rest myocardial blood flow (MBF), myocardial flow reserve (MFR) and stress/rest MBF difference (ΔMBF)).

Results. According to MPS, 15 (26%) patients had signs of myocardial perfusion dysfunction (SSS ≥2,0). Standard MPS indices had low values as follows: SSS 0,0 (0,0; 2,0), SRS 0,0 (0,0; 0,0), SDS 0,0 (0,0; 2,0). According to dynamic myocardial SPECT, 22 (38%) patients had a reduced MFR <2,0. Quantitative indicators were characterized by greater variability compared to the MPS data as follows: stress MBF 1,34 (1,03; 1,64) ml/min/g, rest MBF 0,58 (0,42; 0,73) ml/min/g, MFR 2,42 (1,48; 2,85), ΔMBF 0,68 (0,36; 1,09). In 7 (12%) patients, ischemic myocardial changes (SSS ≥2,0) was associated with a reduced MFR <2,0, and in 28 (48%) without signs of ischemia (SSS <2,0) the MFR was within normal values ≥2,0. However, 15 (26%) had a normal radiopharmaceutical distribution and a reduced MFR, which may indicate the initial stages of microvascular dysfunction, which did not lead to myocardial ischemia.

Conclusion. The dynamic SPECT allows in ~30% of cases to identify MBF and MFR disorders in NOCAD patients with normal results of standard SFM.
Transcatheter and surgical aortic valve replacement in patients at low surgical risk. Review of major studies
Authors: Tsaroev B. S. , Bogachev-Prokofiev A. V. , Zheleznev S. I. , Sharifulin R. M. , Zalesov A. S. , Chernyavsky A. M.
Published: January 2025

In recent decades, transcatheter aortic valve replacement (TAVR) has become a revolutionary method for the treatment of severe aortic stenosis, especially for patients at high surgical risk. Studies such as PARTNER and SURTAVI have confirmed the non-inferiority or superiority of TAVR compared with surgical aortic valve replacement in various risk categories. Newer technologies, including third-generation valve systems, have improved durability and reduced complications such as paravalvular regurgitation. However, long-term survival data remain limited, especially for younger patients and groups with anatomical peculiarities. International association guidelines have long favored TAVR for older patients, while surgery remains the preferred option for younger patients with low surgical risk. However, the latter point is increasingly being questioned. The article analyzes key studies, discusses current limitations, and highlights the need for long-term data to inform clinical practice. In conclusion, TAVR is a remarkable achievement in interventional cardiology, but its optimal use requires consideration of individual patient factors.
Roman stamped bricks from the Tussla-collection in the Hungarian National Museum
Authors: Dobosi Linda , Szabadváry Tamás
Published: January 2025

The so-called Tussla-collection of the Hungarian National Museum is a substantial collection of Roman artefacts collected by Mr. and Mrs. Tivadar Tussla during the early 1880s in the northern half of the legionary fortress in Brigetio. The original material consisted of about 2.500 objects that were partly donated to the Museum during the 1880s or formed the private collection of Mrs. Tussla and entered the Museum after her death in 1961. Both the Tussla couple and the collection had a troubled and eventful fate which led to the loss of some of the material. In this paper, the extant pieces of the ceramic building material are discussed. From the original almost 400 objects 100 could be found in the brick collection of the Hungarian National Museum, most of them stamped. The material is very diverse, both in terms of brick types and stamp types. The different kinds of ceramic building material catalogued include two antefixes, five terracotta water pipes, four tubuli, 21 round suspensura bricks, 32 rectangular lateres, 30 tegulae and 5 imbrices. Almost half of the objects are whole, and their original size could be measured, showing a larger than expected variety. Stamps occurred on tegulae, imbrices, lateres, round bricks and even on a tubulus. About two thirds of the brick stamps (59 out of 86) were those of the legio I Adiutrix, the garrison of Brigetio for three centuries. The other 27 stamps belonged to 10 other manufacturers: the legio XI Claudia (4), legio XXX Ulpia Victrix (2), cohors VII Breucorum (6), classis Flavia Histrica (1), Quadriburgium (3), Frigeridus dux (1), Terentius dux (1), Lupicinus tribunus (6), Terentianus tribunus (1) and Corta Vicen (2). The Tussla-collection enhances greatly our knowledge about the legionary fortress of Brigetio and forms a solid supplement to the ongoing excavations.
New data on the Avar Period chronology of the Körös–Tisza–Maros Interfluve
Authors: Gulyás Bence , Somogyi Péter , Szenthe Gergely
Published: January 2025

The study presents an analysis of the internal chronology of Szarvas-Grexa-téglagyár and Székkutas-Kápolnadűlő, two Avar cemeteries in the Trans-Tisza Region. According to a widely accepted theory, both were established only in the second half of the Avar Period. This dating could be re-evaluated based on the radiocarbon results presented here. The question of when the Middle Avar belt sets could have appeared in the region is also addressed in the study in connection with the internal chronology of the two sites.
Some remarks on the absolute chronology of heraldic belt fittings
Authors: Strokov Anton , Gulyás Bence , Somogyi Péter , Kamelina Galina
Published: January 2025

The article examines the absolute chronology of heraldic belt sets. The main challenges researchers face with these belt sets are their wide geographic distribution and the low number of assemblages with determinable calendar age. The radiocarbon dates of wood samples from Grave 62 of the Borisovo cemetery (northeastern Black Sea region) and the find material of the burial are also published here for the first time. Additionally, we collected radiocarbon dates from other graves with similar heraldic belt fittings to estimate their absolute chronological positions.
Connection and disconnection
Authors: Németh Fruzsina Alexandra
Published: January 2025

Rania Plain lies on the eastern side of Iraqi Kurdistan, at the foot of the seemingly impenetrable Zagros Mountains. During the Early Modern Period, this microregion was on the fringe of the two major powers of the Middle East, the Ottoman and Persian Empires, but it was also part of the Soran Emirate, one of the semi-autonomous vassal states that existed for hundreds of years. The Rania Plain was close to the main trade route linking Baghdad with the major Kurdish cities of Erbil and Mosul. In addition, the Lower Zab River, which flows through this valley to reach the Mesopotamian Plain, provided a natural trade and information route between the inner parts of the Zagros Mountains, the Iranian Plateau, and the fertile plains crossed by the Tigris River. Despite this, the Rania region and its cities do not appear on Ottoman Period maps, and written sources are silent about the function of the area between the 16th and 20th centuries. Field survey and excavation data from the last fifty years have provided a complex and varied picture of the valley’s topography, which, combined with the dense water network in the area, defines possible lines of population movement. One of the key questions to be addressed in examining the historical significance and complex use of the area is how to reconstruct the historical road use in the microregion using historical, archaeological, topographical, ethnographic, and GIS data and whether the area played a connecting or separating role in relation to the eastern frontier of the Ottoman Empire.
Interpretation possibilities of Middle Neolithic cave usage patterns
Authors: Kovács Gizella
Published: January 2025

The more than 150-year research of the Baradla Cave in Aggtelek continued with a rescue excavation in 2019, carried out by a team from the Institute of Archaeological Sciences of the Eötvös Loránd University, and reaching the more difficult-to-access inner parts of the cave system. This paper presents the preliminary results of the evaluation of the pottery, stone and animal bone record of the Middle Neolithic Bükk culture, collected during this excavation. Outlining the special natural atmosphere of the cave and surveying its unusual effect on the people venturing there represent a pivotal addition enabling the contextual interpretation of the finds. In addition, a brief overview is given of the diverse ways of how caves were used throughout Europe, organised according to three main aspects (economic, burial, and ritual), which may help get one closer to understanding the prehistoric use of the Baradla Cave.
SAMSON AS A PROTOTYPE OF CHRIST IN THE ICONOGRAPHY OF WESTERN EUROPEAN ART OF THE 12TH CENTURY
Authors:   Lomonosov Moscow State University, Sycheva Yuliya A.
Published: January 2025

The article examines one of the aspects of the reflection of typological parallelism in iconography using works of Western European art of the 12th century as an example — an appeal to the figure of the Old Testament judge Samson as a prototype of Christ. Based on the analysis of texts contemporary to the works of art, the author attempts to distinguish the possible textual sources of pictorial typological cycles. Thus, various scenes from the history of Samson are found as prototypes of the Gospel story in the texts of the 12th century: the Gates of Gaza, the Fight with the Lion and the Death of Samson (in the Easter sequences of Adam of Saint Victor, in the Speculum Ecclesiae of Honorius Augustodunensis). In addition, twelve prototypes from the life of Samson are used as Old Testament prefigurations in the text of Pictor in Carmine (c. 1200). Using the example of two circles of works of art (Rheno-Mosan and English) highlighted in the article, the author analyzes the role of scenes with Samson in the typological cycle, the features of the interpretation of individual scenes, as well as the structure of typological symbolism in the iconographical program. Based on the iconographical analysis, it can be argued that the most common scene for the Rheno-Mosan group is the episode with the Gaza Gate. The cycle with Samson is presented in the most detail in the Klosterneuburg Altar (1181), where five prototypes are used to form the typological pair “Samson-Christ”. The intention to expand the cycle is also noticeable in the works of English art (the monumental cycle of the chapter house in Worcester, the cycle of typological stained-glass windows in Canterbury). In addition to stable schemes, the article considers examples of programs that have no analogues in the art of the 12th century. Thus, the scene of Samson’s death and the destruction of the Philistine temple is found in the currently known works of art of the 12th century only once (in a double-sided cross of Maas origin), but then this scene has become a stable prefiguration (in the typological cycles of the 14th-15th centuries).
VISUAL DIAGRAMS SPECULUM THEOLOGIAE AND MEDIEVAL ART OF MEMORY
Authors:   HSE, Egorova Anastasia S.
Published: January 2025

The article focuses on the Speculum theologiae miniatures, a distinctive collection of instructional illustrations that played a significant role in Catholic education from the 13th to 15th centuries. These illustrations feature a blend of abstract designs, such as tables and circular diagrams, alongside specific imagery including celestial beings like cherubs and seraphs, as well as trees and towers. Notably, many of these illustrations were created by Franciscan monks, suggesting their dual purpose: as tools for organizing and systematizing the creed and as mnemonic aids for sermons. The report aims to illustrate how these visual tables can serve as effective mnemonic guides for sermons, drawing on the recommendations for preachers found in Artes Praedicandi and analyzing specific miniatures from the Speculum theologiae. Additionally, the research will examine the influences of figures such as Hugo of Saint Victor, whose speculative reasoning, and Ramon Llull, known for his diagrams in The Great Art, have shaped the iconography and logic of certain illustrations in the Speculum theologiae.

The research presented in the article involves reading and translating for the first time into Russian the tables from this manuscript, accompanied by an analysis of how the forms, images, and texts within the illustrations interact with one another. The study of visual diagrams opens a broad range of scholarly inquiries. However, there is a notable lack of comprehensive works that explore and analyze the diagrams of the Mirror of Theology, both in Russian and in the wider field of international historiography. This gap highlights the relevance and importance of the chosen topic for further academic exploration.
Quantifying and Checking Genomic DNA v1
Authors: Carlos Goller Carlos , Sjogren Carly
Published: January 2025

Overview and Goals Your bacterial isolate has been grown on agar plates, lysed open and genomic DNA has been isolated for sequencing. Next, we need to quantify our DNA yield and assess its integrity. For this, we will use the Nanodrop spectrophotometer and Qubit to measure our DNA quantity, We will also use an Agilent TapeStation electrophoresis system to assess the size of the DNA and quality. After completing this lab you will gain the following lab skills: Lab safety and proper personal protective equipment (PPE) Proper use of a Nanodrop spectrophotometer and Qubit fluorometer to analyze DNA samples. Analysis of DNA concentration and integrity using absorbance, fluorescence, and gel electrophoresis.
Media collocations with the component PR: semantic and stylistic nature
Authors:   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine, Syzonov Dmytro
Published: January 2025

The article defines the semantic and stylistic possibilities of units with the component PR-, which are actualized in modern media communication. PR- as a derivative unit can produce new lexemes that actively function in the mass media. In the Ukrainian language, the activation of lexemes with a PR component is related to the "westernization" of the language, the integrative processes of the influence of English linguistic culture on Ukrainian, total globalization and Internetization, etc. Being combined with other units, they constitute a system of collocative units that can influence recipients. It is substantiated that PR is a productive element of "fused" word combinations, which in their structure and semantics tend to media phraseologisms. It is observed that such constructions in the media help expressively to verbalize the sense of the message, to make its meaning moremanipulative. Thus, PR as a stable component can appear both in pre- and postposition in media collocations. New stable constructions with the PR element have also been noted, the semantics of which is determined by the context and background knowledge of the recipients. Some units function with excessive emotional coloring often used in media headlines to attract the attention of recipients. Separately, emphasis is placed on the transformation of phraseology, in the structure of which the lexeme PR appears. Such a palette of stylistic possibilities of media collocations with the PR component allows to intensify their use in the information process. Partial attention is also paid to the use in the Ukrainian media of the English-language version of the lexeme PR, which is also activated in certain contexts, in particular in advertising. The lexeme PR, as we can see, has been activated in mass communication recently, is flexible in terms of the formation of stable constructions and can be included in various media contexts for a predictable impact on the recipient.
Stanislav Rosovetskyi's contribution to the study of the language of Taras Shevchenko
Authors:   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine, Dyadyshcheva-Rosovetska Yuliia , Pyatetska Olga ,   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
Published: January 2025

The article attempts to outline the contribution of Stanislav Rosovetsky to the study of the language of Taras Shevchenko – a talented scholar, a versatile philologist, a professor at Taras Shevchenko National University of Kyiv, and the author of more than two hundred literary, folkloristic, and linguistic studies on the works of Taras Shevchenko, more than a hundred of which are included in the Shevchenko Encyclopedia. The focus is placed on the linguopoetic, stylistic, and linguofolkloristic issues in his works, as well as on questions concerning the history of the Ukrainian literary language. Comprehensive studies by the scientist on lexicology, phraseology, and syntax are examined. The analyzed stylistic device – the apostrophe (rhetorical figure), a form of address from a particular subject to the object of speech (Fate, Muse, Glory, etc.) – used by Rosovetsky (in collaboration) in the poetic texts of "Kobzar" is characterized. Emphasis is placed on the precision of Rosovetsky's linguo-poetic observations regarding Shevchenko's choice in creating a reinterpretation of the fragment from "The Tale of Igor's Campaign": the poem "From Dawn to Dusk." It is noted that Shevchenko distinctly approximated the text to the Ukrainian folkloric samples of the 19th century, particularly in the linguistic aspect, by replacing plural forms with singular ones when creating characteristic oral-poetic synecdoches. Rosovetskyi's approach to studying the secrets of Taras Shevchenko's linguistic mastery from the perspective of deviations from the discourse established for a particular genre is highlighted. The importance of Rosovetskyi's psychological justification of the high frequency of the word "khata" (house) in Taras Shevchenko's poetic contexts is emphasized. Rosovetskyi's interpretation of Shevchenko's self-repetitions or authorial reminiscences, which correspond to structurally folkloric formulas, is outlined. The validity of the scientist's conclusions regarding the poet's transformations of authentic folkloric formulas is underscored, as well as Rosovetskyi's particular attention to dumas in this aspect. The scientist's observations on Taras Shevchenko's fundamental stance as a language creator regarding the choices for the further development of the Ukrainian literary language are highlighted. An attempt by Rosovetskyi to conceptualize V. Peretz's figure in terms of his contribution to the development of a scientific model of Shevchenko's studies is noted. The article pays special attention to the academic's personal contribution in this field, as well as to the significance of his role in training a cohort of future Shevchenko's scholars at the Seminary.
History and modernity: multimodality and interactivity of museums' communication (based on coronation 2023 exhibitions at british museums)
Authors:   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine, Biliuk Yuliia
Published: January 2025

The article explores multimodality and interactivity at British museums exhibitions on occasion of the King Charles III and Queen Camilla coronation May 6, 2023. The research can be considered a significant contribution to museum studies, particularly in the realm of visitor engagement and education. Drawing on a multimodal discourse analysis framework, the study examines how museums utilise a combination of semiotic resources, such as visual, textual, audio, sensory as well as digital elements, to engage visitors both onsite and online. This analysis highlights museums as dynamic communicative spaces that challenge traditional discourse models by integrating interactivity, participation, and educational engagement, thereby reshaping how cultural heritage is presented and experienced. Through a detailed examination of five key exhibitions, Coronation Robes at Apsley House, Crown to Couture at Kensington Palace, Royal Connections: Crowns and Coronets at Blenheim Palace, the Coronation Display at Buckingham Palace, and the exhibition at the Royal Mews, the research demonstrates how multimodal strategies facilitate meaning-making, educational enrichment, and visitor engagement. The research offers valuable insights into museology, highlighting how digitalisation is transforming the way museums operate in today's world. The use of digital tools, social media platforms, and interactive displays is shown to enhance the accessibility and inclusivity of museum discourse, democratising the visitor experience. In particular, the concept of the participatory museum is explored, where visitors are encouraged to actively engage and contribute to the museum experience rather than passively consume it. The data includes photographic documentation collected by the researcher (https://drive.google.com/
drive/folders/1oTXxklKfv53HBJzpXrLAqvtTC6ZQe_N3?usp=share_link), illustrating the integration of multimodal resources within the exhibitions. The study contributes to the growing body of research on multimodality, interactivity, and education in museum communication, offering insights into how these strategies reshape visitor interaction with cultural heritage. The findings suggest further inquiry into the role of multimodal discourse in enhancing visitor comprehension, engagement, and learning, particularly within the context of evolving digital museum practices.
PENGEMBANGAN MEDIA PEMBELAJARAN GAME EDUKASI “JOKO THE EXPLORER” MATERI KERAGAMAN DAERAH KELAS IV SDN KARANGTENGAH 1 KOTA BLITAR
Authors: Anggarika Febyana Setya , Putra Arda Purnama , Mas’ula Siti
Published: January 2025

Penelitian serta pengembangan ini memiliki tujuan untuk menciptakan produk berupa media pembelajaran keragaman daerah yang disebut "Joko The Explorer" di kelas 4 SD, yang menarik bagi para ahli materi, ahli media dan guru sebagai pengguna. Penelitian dengan uji coba pertama sebanyak 6 siswa dan uji coba kedua sebanyak 28 siswa. Model penelitian dan pengembangan game edukasi “Joko The Explorer” ini adalah menggunakan model ADDIE dengan lima langkah yaitu (1) Analysis (2) Design (3) Development (4) Implementation (5) Evaluation. Teknik pengumpulan data terdiri dari wawancara dan angket. Analisis angket ahli materi, ahli media, dan guru sebagai pengguna dilakukan menggunakan skala Likert, sedangkan angket respon siswa dianalisis menggunakan skala Guttman. Hasil validasi ahli materi sebesar 93,75% kategori sangat valid. Hasil validasi ahli media sebesar 93,75% kategori sangat valid. Hasil validasi guru sebagai pengguna sebesar 92,85% kategori sangat valid. Hasil kemenarikan dari angket respon siswa sebesar 98,42% kategori sangat menarik. Persentase tersebut menunjukkan bahwa media pembelajaran game edukasi “Joko The Explorer” dikategorikan sangat valid dan sangat menarik serta dapat digunakan tanpa revisi. Penelitian ini memiliki kesimpulan apabila produk media pembelajaran game edukasi “Joko The Explorer” materi keragaman daerah kelas IV Sekolah Dasar valid menurut ahli materi, ahli media, dan guru sebagai pengguna serta memiliki daya tarik berdasarkan pernyataan siswa. Saran bagi pengembangan lebih lanjut sebaiknya tidak hanya dikembangkan pada materi keragaman saja akan tetapi bisa dikembangan secara luas dengan materi IPS lebih beragam atau mata pelajaran lain.