bluuebunny/crossref_metadata_2025 huggingface dataset:
Exploring the Effects of Variety and Amount of Mindfulness Practices on Depression, Anxiety, and Stress Symptoms: Longitudinal Study on a Mental Health–Focused eHealth System for Patients With Breast or Prostate Cancer
Authors: Malandrone Francesca , Urru Sara , Berchialla Paola , Rossini Pierre Gilbert , Oliva Francesco , Bianchi Silvia , Ottaviano Manuel , Gonzalez-Martinez Sergio , Carli Vladimir , Valenza Gaetano , Scilingo Enzo Pasquale , Carletto Sara , Ostacoli Luca
Published: June 2024

Background

Patients with cancer often face depression and anxiety, and mindfulness-based interventions, including internet-based versions, can effectively reduce these symptoms and improve their quality of life. This study aims to investigate the impact of internet-based mindfulness-based interventions (e-MBIs) on anxiety, depression, and stress symptoms in patients with prostate or breast cancer.

Objective

The primary aims are to assess the association between the amount and variety of e-MBI practices and symptom reduction. Second, this study aims to examine how baseline information such as sociodemographic characteristics, dispositional mindfulness (DM), and dispositional self-compassion (DSC) correlate with both app usage and symptom reduction.

Methods

Participants included 107 patients with cancer (68 women with breast cancer and 38 men with prostate cancer) enrolled in a hospital setting. They were assigned to the intervention group of the NEVERMIND project, using the e-BMI module via the NEVERMIND app. A longitudinal design involved Pearson correlation analysis to determine the relationship between the amount and duration of e-MBI practices. Linear regression analysis was conducted to gauge the dose-response effect, evaluating the impact of DM and DSC on depression, anxiety, and stress. Negative binomial regression was conudcted to study sociodemographic factors’ influence on the amount of practice in e-MBIs.

Results

The participants with more diverse and sustained mindfulness practices experienced significant reductions in depression, anxiety, and stress. A high correlation (0.94) between e-MBI practices and symptom reduction was also highlighted. Male, married, and highly educated patients were more likely to engage in mindfulness. Even if DM and DSC did not impact the amount or variety of practices correlated, they were correlated with symptom reduction, showing that higher levels were associated with significant reductions in depression, anxiety, and stress.

Conclusions

While more e-MBI practice is linked to reduced anxiety, depression, and stress, this study emphasizes the crucial role of variety of practice over amount. DM and DSC are key in shaping intervention effectiveness and may act as protectors against psychological distress. Using app log data, our research provides a unique perspective on e-MBI impact, contributing to cancer care understanding and guiding future studies.
A Concise Framework for Fairness: Navigating Disparate Impact in Healthcare AI (Preprint)
Authors: Jagtiani Pemla , Karabacak Mert , Margetis Konstantinos
Published: June 2024

UNSTRUCTURED

As artificial intelligence (AI) increasingly permeates healthcare, it promises to enhance patient outcomes and operational efficiency. However, the integration of AI also introduces significant risks of perpetuating biases, necessitating careful consideration of fairness in these systems. This paper proposes a comprehensive framework aimed at mitigating biases and promoting fairness within healthcare AI. By outlining a structured approach encompassing all stages of the AI lifecycle—from data collection and preprocessing to model selection and continuous monitoring—we provide actionable guidance for developers, researchers, and healthcare professionals. Furthermore, we introduce specific fairness metrics such as False Positive/Group Size Parity and False Discovery Rate Parity, which are crucial for evaluating AI systems in various healthcare applications—from diagnostic tools to resource allocation.
Migración ecuatoriana a Estados Unidos: un análisis desde los riesgos en el contexto de tránsito (1999-2023)
Authors: Calva Sánchez Luis Enrique , Novoa Rodríguez Zaira , Valle Franco Alex
Published: June 2024

El objetivo de este artículo es analizar los patrones migratorios, riesgos y vulnerabilidades de las personas ecuatorianas que migran de forma irregular a Estados Unidos en el contexto de la externalización de las fronteras. Con una metodología cualitativa, a partir de cuarenta y cuatro entrevistas a profundidad con personas que emigraron entre 1995 y 2023, se identifican tipolo-gías que muestran los cambios en esta migración a lo largo de tres periodos. Entre los resulta-dos destaca la evidencia de cómo las políticas restrictivas implementadas por los gobiernos de países en tránsito han modificado los patrones migratorios, lo cual orilló a los migrantes ecua-torianos a realizar trayectos cada vez más riesgos.
Make Trade Policy Great Again: El T-MEC entre el populismo y Trump
Authors: Aparicio Ramírez Mariana
Published: June 2024

La política comercial de Estados Unidos, como la de todos los países, tiene una vinculación con su interés nacional. Durante la presidencia Trump se presentaron cambios y continuidades respecto a otras administraciones en cómo Estados Unidos ha proyectado su relación con el exterior. El artículo está inserto en el reciente debate sobre populismo y política comercial, a partir del análisis de fuentes primarias y oficiales —como los reportes del United States Trade Representative (USTR)— y la revisión documental en medios nacionales e internacionales, con los cuales se identifican algunos rasgos populistas en la política comercial y el discurso del presidente Trump manteniendo una lógica transgubernamental durante la negociación que dio paso del TLCAN al T-MEC.
Procesos socioculturales, vida cotidiana e identidad entre migrantes yucatecos radicados en Baja California
Authors: Be Ramírez Pedro Antonio
Published: June 2024

Objetivo: indagar sobre la conformación de las identidades entre los migrantes yucatecos radicados en Ensenada, Baja California, a partir de diversas interpretaciones que crean las personas a la luz de las dimensiones que conforman su herencia cultural maya, así como los ajustes, tensiones o reelaboraciones que experimentan al encontrarse en un sitio diferente al de su lugar de origen.
Diseño metodológico: a partir de un paradigma constructivista que permite enmarcar la perspectiva del interaccionismo simbólico, esta investigación de corte cualitativo se inscribe en los llamados estudios de caso mediante entrevistas a profundidad con las hijas de una familia nuclear, además de un matrimonio joven, durante el primer semestre de 2023. El análisis de la información se apoya en una lectura horizontal y vertical a partir de las dimensiones que se abordan en este artículo.
Resultados: aspectos como las razones para migrar, el lugar de destino, aspectos culturales como la comida yucateca y la identidad, se encuentran en continua reflexión y discusión entre los participantes de la investigación.
Limitaciones de la investigación: dada la naturaleza del estudio cualitativo, los resultados presentados no pueden generalizarse y, más bien, buscan comprender un hecho social en particular, en este caso, los migrantes yucatecos radicados en Ensenada, Baja California.
Hallazgos: se contribuye a una comprensión puntual sobre la identidad entre los migrantes yucatecos y cómo el parentesco, como teoría conceptual, permite poner en la mesa de discusión el papel que mujeres y hombres construyen en el marco de este estado fronterizo del noroeste mexicano.
Sleep Quality and Frailty Association in the Elderly
Authors: Vicente-Guerra Edna A. , Hernández-Ramírez Claudia , Mirón-Velázquez Jorge A. , Velázquez-Yáñez Laura G. , Pérez-Orozco Lucía H.
Published: June 2024

Objective: To analyze the association between sleep quality and frailty syndrome in the elderly who are attending a general hospital. Methods: Cross-sectional analytical study conducted at the General Hospital of the Zone No. 27 of the Mexican Institute of Social Security from November 2022 to April 2023, in Mexico City, Mexico; 170 adults ≥ 60 years of age attending geriatric consultation participated, non-probability sampling was used. The Pittsburgh Sleep Quality and frail for frailty questionnaires were used; to exclude other factors that could influence the development of frailty, the Geriatric Depression Scale, and the Mini Nutritional Assessment were used. Descriptive statistics, X2 test to evaluate significant differences between groups, prevalence ratio (pr) to evaluate the likelihood of frailty with poor sleep quality, and binary linear regression to explore the influence of other variables on frailty were performed. Results: The mean age was 79.6 ± 8 years, women represented 71.2% (n= 121) of the sample. It was reported that 48.2% (n= 82) of the patients showed frailty, and 68.8% (n= 117) poor sleep quality, regarding the evaluation of confounding variables, 55.8% (n=95) showed depression, and 3.5% (n= 6) malnutrition. An association was found between sleep quality and frailty (p < 0.001), the pr for frailty was 14.52 (ci 5.72-36.83). The linear regression model for sleep quality was 10.33 (95% ci: 3.92-27.25), and for depression 2.34 (95% ci: 1.10-4.94). Conclusion: an association was found between poor sleep quality and frailty, with a 14.52-fold increase in the probability of presenting frailty in those with poor sleep quality.
Asociación entre calidad de sueño y fragilidad en adultos mayores
Authors: Vicente-Guerra Edna A. , Hernández-Ramírez Claudia , Mirón-Velázquez Jorge A. , Velázquez-Yáñez Laura G. , Pérez-Orozco Lucía H.
Published: June 2024

Objetivo: analizar la asociación entre calidad del sueño y síndrome de fragilidad en adultos mayores adscritos a un hospital general. Métodos: estudio transversal analítico realizado en el Hospital General de Zona No. 27 del Instituto Mexicano del Seguro Social de noviembre de 2022 a abril de 2023 en la Ciudad de México, México; participaron 170 adultos ≥ 60 años que asistieron a consulta de geriatría, se utilizó muestreo no probabilístico. Se aplicaron los cuestionarios de calidad de sueño de Pittsburgh y de frail para fragilidad; para descartar otros factores que pudieran influir en el desarrollo de fragilidad se utilizó la escala de depresión geriátrica y el Mini Nutritional Assessment. Se realizó estadística descriptiva, prueba de X2 para evaluar si existían diferencias significativas entre grupos, razón de prevalencias (rp) para evaluar la probabilidad de presentar fragilidad con mala calidad de sueño y regresión lineal binaria para explorar influencia de otras variables en la fragilidad. Resultados: la media de edad fue de 79.6 ± 8 años, las mujeres representaron 71.2 % (n=  121) de la muestra. Se reportó que 48.2 % (n= 82) de los pacientes mostró fragilidad y 68.8% (n= 117) mala calidad del sueño, respecto a la evaluación de variables de confusión, 55.8 % (n= 95) presentó depresión y 3.5% (n= 6) mostró desnutrición. Se encontró asociación entre calidad del sueño y fragilidad (p < 0.001), la rp para fragilidad fue de 14.52 (ic 5.72-36.83). El modelo de regresión lineal para calidad de sueño fue de 10.33 (ic 95%: 3.92-27.25) y para depresión 2.34 (ic 95%: 1.10-4.94). Conclusión: se encontró una asociación entre la mala calidad de sueño y la fragilidad, con un aumento de 14.52 veces en la probabilidad de presentar fragilidad en aquellos con mala calidad de sueño.
Prevalencia de percepción de conductas de violencia durante el servicio social en médicos pasantes de México
Authors: Robles-Rivera Karina , Limón-Rojas Ana Elena , Wakida-Kuzunoki Guillermo Hideo , Morales-Carmona Ricardo Octavio , Silva-López Yadira Patricia , Ramírez-Grycuk Ma. Teresa
Published: June 2024

Introducción: En México, el servicio social es un requisito indispensable para que los estudiantes de educación superior obtengan la autorización legal de ejercer su profesión. Sin embargo, el servicio social de medicina se ha visto afectado por las condiciones sociales en las que se desarrolla, haciendo hincapié en el aumento de la percepción de violencia hacia los médicos pasantes.
Objetivo: Estimar la prevalencia de percepción de conductas de violencia por los médicos pasantes del servicio social en una universidad pública en México durante cinco años.
Método: Se aplicó un cuestionario autoadministrado de 21 preguntas con escala tipo Likert sobre la percepción de conductas de violencia en el servicio social. Se realizó estadística descriptiva para la obtención de la prevalencia, así como modelos de regresión logística para explorar asociaciones.
Resultados: 4,349 médicos egresados respondieron la encuesta y se encontró una prevalencia del 58.8% de percepción de al menos una de las 21 conductas de violencia interrogadas. Las más frecuentes fueron: intentos persistentes de menospreciar y menoscabar el trabajo, insinuaciones destructivas y de sarcasmo, y humillaciones delante de colegas. Se observó una asociación entre las modalidades de campos clínicos rurales (OR 1.41, IC 95% 1.04-1.92) y vinculación (OR 1.40, IC 95% 1.04-1.87) y mayor riesgo de percibir al menos una de las conductas de violencia interrogadas.
Conclusiones: Los resultados sugieren un aumento en la prevalencia de percepción de conductas de violencia en el servicio social durante los últimos cinco años en México. Es urgente la implementación de estrategias, políticas y programas que aborden la violencia durante el servicio social con el objetivo de crear espacios seguros en los que los médicos pasantes puedan desempeñar sus funciones en beneficio de la población mexicana.
Desarrollo y validación de un Cuestionario de Preparación Integral para Servicio en Comunidades Olvidadas (C-PISCO)
Authors: Flores-Cohaila Javier Alejandro , Miranda-Chávez Brayan , Huaman-Ramírez Karla Elizabeth , Copaja-Corzo Cesar , Rivarola-Hidalgo Marco
Published: June 2024

Introducción: Cada año cerca de 5,000 médicos generales se enlistan al servicio rural urbano marginado, este representa una transición a una práctica y evidencia las competencias no logradas. Al momento no existe instrumento para evaluar la preparación de los médicos ante este nuevo desafío.
Objetivo: Desarrollar y validar el cuestionario de preparación integral para servicio en comunidades olvidadas (C-PISCO) para la evaluación de competencias autopercibidas de médicos generales de Perú.
Método: Diseñamos un cuestionario con base en el perfil de competencias esenciales del médico del ministerio de salud del Perú. Se administró a 190 médicos generales que realizaron el servicio rural obligatorio entre 2020 y 2023. Realizamos la evaluación de estructura y consistencia con un análisis gráfico exploratorio (AGE), análisis factorial exploratorio (AFE) y omega de McDonald.
Resultados: El C-PISCO se fundamentó en el perfil de competencias esenciales del médico del ministerio de salud del Perú, otorgando evidencias de validez de contenido. Fue sometido a evaluación por médicos recién graduados del SERUMS para la validez de apariencia. Finalmente, el AGE evidenció 3 dominios: médico clínico, médico integral y médico promotor de la salud, con 15 ítems en total, demostrando validez de constructo. Además, se encontró una confiabilidad de 0.94 en la prueba de omega de McDonald.
Conclusiones: El C-PISCO presenta evidencias de validez para medir competencias autopercibidas en médicos generales. El análisis gráfico exploratorio mostró tres dimensiones: médico clínico, médico promotor de la salud y médico integral. El C-PISCO podría ser usado para evaluar las necesidades formativas de médicos generales, dado que, en nuestro contexto, es el único instrumento diseñado para este fin.
Prebriefing ¿Cómo se implementan los estándares de buenas prácticas? Una experiencia desde Argentina
Authors: Latugaye Dolores , Astoul Bonorino Carolina
Published: June 2024

Introducción: Los estándares de buenas prácticas recomiendan iniciar la enseñanza o experiencia basada en simulación (EBS) con un prebriefing. No incluirlo o hacerlo de manera incompleta, puede atentar contra el entorno seguro de aprendizaje.
Objetivo: Describir la calidad de los prebriefing realizados durante el año 2022 en el Centro de Simulación Clínica de una universidad de gestión privada de Argentina, según los estándares de mejores prácticas de la International Nursing Association for Clinical Simulation and Learning (INACSL).
Método: Se trata de un estudio descriptivo, exploratorio y de corte transversal. Se incluyeron todos los registros completos de las EBS realizadas en el marco de las actividades académicas habituales, desde el 1 de enero al 31 de diciembre de 2022.
Se contó con una base de datos secundaria que incluyó los componentes del prebriefing sugeridos por los estándares de buenas prácticas. Para el análisis se utilizó estadística descriptiva.
Resultados: Se analizaron los prebriefing de 177 EBS. Más de la mitad incluyó al menos 9 de los 12 ítems sugeridos por las recomendaciones internacionales, por lo que presentaron una calidad categorizada como “alta” e “intermedia”.
Conclusiones: Si bien la mayoría de los prebriefing fue de calidad alta, estos resultados invitan a planificar y desarrollar programas de acompañamiento y formación continua de los facilitadores e instructores para promover la incorporación de aquellos aspectos que no fueron incluidos en un 70% de las veces.
Descubriendo estructuras de comunidades en la red de #StopHateForProfit: un análisis de redes sociales
Authors: Puerta-Díaz Mirelys , Martínez-Ávila Daniel , Ovalle-Perandones María Antonia
Published: June 2024

La campaña de boicot contra Facebook #StopHateFor-Profit, lanzada en junio de 2020, emerge como un fenómeno clave en la lucha contra el discurso de odio en las redes sociales. Este estudio aborda la detección y caracterización de comunidades en la campaña #StopHate- ForProfit, empleando enfoques teóricos y metodológicos de análisis de redes sociales (ARS) y de procesamiento del lenguaje natural (PLN) para examinar la estructura social de la campaña en Twitter (actual X). Se emplea el programa Gephi para la detección de comunidades, utilizando medidas de centralidad, modularidad, componentes conectados y coeficiente de agrupamiento. El análisis revela una red compleja y cohesionada, formada por 5 556 comunidades con una alta modularidad, lo cual señaló densas interacciones internas. Se identificaron los actores fuerte y débilmente conectados en las comunidades indicando las relaciones más estrechas y directas. La clasificación de actores según su posición proporciona características sobre la influencia de nodos y la cohesión en la red. Este acercamiento interdisciplinario contribuye a la comprensión de la diversidad de enfoques dentro de #StopHateForProfit y destaca su relevancia en la participación masiva e impacto. El análisis de las comunidades revela una colaboración efectiva entre actores, evidenciando la integralidad de la estrategia coordinada para contrarrestar el discurso de odio.
Repartición decimal y conflicto Iglesia-Estado: el caso de Durango, 1824-1833
Authors: Bueno Hurtado Edgar
Published: June 2024

En 1824, la legislación de la joven república determinó que los estados contarían con el derecho de recibir la parte de la masa decimal que en tiempos virreinales perteneció al monarca. Esto provocó conflictos entre la autoridad civil y la eclesiástica que sólo pueden ser observados desde el ámbito regional. El objetivo del presente artículo es analizar cómo el gobierno de Durango intentó tomar su parte correspondiente de la gruesa decimal, la respuesta del clero ante esa pretensión y los resultados del conflicto entre el estado y la Catedral de Durango. Para el análisis, resulta fundamental la perspectiva de la historia fiscal, pues ésta permite indagar en las actividades propias del ejercicio del poder estatal. De tal manera que este trabajo pretende contribuir al conocimiento sobre la organización fiscal de las primeras décadas de la vida independiente en México. Así, mediante el uso de la legislación, estatal y federal, documentos contables tanto estatales como clericales y comunicaciones entre ambas instancias es posible concluir que las problemáticas del estado de Durango no fueron un mero reflejo de las pugnas del gobierno nacional.
Enfoque de género en respuesta de acciones colectivas de mujeres: una lectura desde el concepto cross fertilization
Authors: Niño Patiño Natali
Published: June 2024

El presente artículo tiene como propósito principal hacer una revisión de las decisiones de los tribunales regionales de derechos humanos, con el fin de identificar elementos que nos ayuden a construir el enfoque diferencial de género, en el marco de la atención y respuesta, por parte de las instituciones del Estado, a las acciones colectivas de las mujeres. El artículo implementa como metodología el análisis de sentencias a partir del concepto de cross fertilization, el cual nos permite examinar decisiones judiciales con citas y fuentes cruzadas entre las cortes, para reconocer criterios universales para la defensa de los derechos, en búsqueda de la construcción de dicho enfoque, el cual precisa de ser incorporado como un elemento esencial por parte de los estados, para el cumplimiento de deberes internaciones que conlleven a la prevención, sanción y erradicación de la violencia de género.
Lineamientos para el Protocolo de Erradicación del Acoso Escolar en Educación Básica, del 7 de diciembre de 2023
Authors: Pérez Valdivieso Pedro Antonio
Published: June 2024

En este comentario se analizan las medidas preventivas establecidas en los Lineamientos para el Protocolo de Erradicación del Acoso Escolar en Educación Básica, de fecha 7 de diciembre de 2023, desde una perspectiva de educación en derechos humanos.
iglesia misionera a la iglesia diocesana en Santa Fe de Bogotá. El Sínodo de Juan de los Barrios y el Catecismo de Zapata de Cárdenas
Authors: Chávez Aguilar Elizabeth Yazmín
Published: June 2024

Este artículo tiene como intención comparar las políticas eclesiásticas de dos obispos de Santa Fe de Bogotá, Juan de los Barrios y Luis Zapata de Cárdenas, analizando los decretos del Primer Sínodo de Santa Fe (1556), presidido por el primero y el Catecismo de Zapata de Cárdenas (1576). Aunque sólo transcurrieron 20 años entre uno y otro documento, en ellos se pone de manifiesto una transformación de la política eclesiástica en Santa Fe. El cambio se hace evidente en los métodos de ordenación sacerdotal y parroquial, así como de evangelización. Mientras de los Barrios apostó por la fundación y mantenimiento de la iglesia misionera, Zapata de Cárdenas lo haría por el fortalecimiento de la iglesia diocesana, en concordancia con la política real de Felipe II, según la cual, y de acuerdo con Trento, la iglesia debía ser regida por los obispos en plenitud de potestad.
Los derechos humanos y su impacto en el derecho civil: algunos apuntes
Authors: Álvarez Ledesma Mario Ignacio
Published: June 2024

El presente artículo explora la relación entre el derecho civil y los derechos humanos, analizando las complejidades y desafíos que surgen al intentar aplicar los principios de derechos humanos en el ámbito de las relaciones privadas. Para abordar esta cuestión, se proponen tres criterios a considerar: la naturaleza del derecho humano en cuestión, el tipo de protección que se pretende aplicar y la modalidad o alcance de dicha aplicación. Se enfatiza la importancia de evitar la confusión entre lo público y lo privado en el derecho, así como la necesidad de adaptar las garantías de derechos humanos a las relaciones entre particulares de manera precisa y fundamentada.
Advancements in Fashion: Exploring Machine Learning-Based Recommendation Systems
Authors: Jadhav Dr. Sudhakar Baburao
Published: June 2024

Abstract: The fashion industry is experiencing a paradigm shift with the proliferation of online commerce platforms offering a vast array of choices to consumers. To effectively navigate this landscape, efficient methods for sorting, showcasing, and delivering products and information are essential. Online auction platforms have emerged as a prominent avenue for individuals to showcase and sell their creations, fostering inclusivity irrespective of demographic factors. Fashion Recommendation Systems (FRSs) leveraging image-based techniques are revolutionizing the shopping experience, drawing consumers to fast-fashion retailers.
The role of the Internet of Things in increasing the efficiency of logistics companies
Authors: Sokhetska Anna , Koren Oleksandr , Kravchenko Andrii , Danik Natalia , Leonova Sofiia
Published: June 2024

Raising efficiency encourages logistics companies to use modern technologies. Using Internet of Things (IoT) devices improves logistical efficiency. The aim of the research is to determine the role of IoT in increasing the efficiency of logistics processes. The study was based on information about the logistics activities of the Supply Chain of one of the largest logistics companies in the world — DHL Group. The study covers the period 2009-2022. The research was conducted using linear regression models tested by the least squares method. The impact of the use of IoT devices was introduced into the model through the use of a dummy variable. It was established that the implementation and use of IoT devices has a positive, statistically significant effect on such indicators of logistical efficiency as Profit Margin and Operating Efficiency Ratio. It was proved that IoT positively affects logistical efficiency and does not entail reducing jobs, which is a socially important factor. The obtained results can be applied in developing and justifying the policy of implementing IoT in the activities of logistics companies. The conducted research opens up prospects for further studies, in particular regarding the impact of IoT on other performance indicators of logistics companies, particularly on their market capitalization.
The use of alginate in the cultivation of mesenchymal cells in biomedical engineering
Authors: Bacenkova Darina , Demeterova Jana , Dosedla Erik , Gasparova Petra , Trebunova Marianna
Published: June 2024

Stem cells are a specialized type of cells in a human or animal organism that have the ability to self-renew and differentiate into various types of cells in the body. They have great potential in medical research and therapies as they can be used to treat a variety of diseases, regenerate tissues and develop new therapeutic approaches. In the article, we describe the cultivation of stem cells with alginate, which is used in 3D cultivation. The biopolymer alginate is preferred in biomedical applications due to its excellent properties. Polysaccharide alginate is isolated from marine, brown algae and bacterial cultures of species, Azotobacter and Pseudomonas species. Alginate is soluble in water, which allows easy processing and application in the form of various hydrogels or matrices. We present the preparation of alginate gel in the form of beads in combination with multiplied stem cells under in vitro conditions. At the same time, we observed how a natural polymer, specifically alginate, which is used for cultivation, behaves towards cells and how it affects their proliferation and differentiation.
Investigating the feasibility of energy harvesting from the third pedal in automotive systems using a mechanical motion rectifier: simulation-based study
Authors: Alwafaie Mohammed , Kovacs Bela
Published: June 2024

Automotive vehicles provide opportunities for energy harvesting from the mechanical motion generated during driving. In this study, we propose a novel design for a mechanical motion rectifier (MMR) that can generate electrical power from the mechanical motion of the third pedal in manual transmission vehicles. Using simulation and design tools, we investigate the feasibility of this system and explore the potential benefits and challenges of implementing it in automotive vehicles. Our results show that the proposed MMR system can effectively convert the oscillatory motion of the third pedal into unidirectional motion, which can then be used to generate electrical power. We also demonstrate that the design and operating parameters of the MMR system significantly impact its efficiency and performance. Our findings provide insights into the design and optimization of MMR systems for energy harvesting in automotive vehicles and highlight the potential for this technology to contribute to sustainable energy solutions.
Comparison of mechanical properties polyamide materials produced by different additive technologies
Authors: Kohan Miroslav , Rajtukova Viktoria , Balint Tomas , Zivcak Jozef , Hudak Radovan
Published: June 2024

Additive technology provides several advantages compared to traditional production methods, such as creation of complex geometric shapes with less material consumption. However, the setting of the 3D printing process as well as the positioning of the printed object has an impact on the mechanical properties of the material used. The aim of this study was to compare the mechanical properties of polyamide (PA) material as well as the influence of the orientation of printed objects when using SLS and MJF technology. The SLS technology used the P 396 device (EOS, Germany). An HP Jet Fusion 5200 (HP, USA) was used for MJF technology. In both cases, PA was used to creating experimental samples for mechanical testing. The orientation of the printed samples was 0°, 45° and 90° to the base platform of the 3D printer. The results show by comparing SLS and MJF technologies highest mechanical properties for MJF technology when the position samples were at 90° to the basic platform of 3D printer. Conversely, the lowest mechanical properties were recorded for samples that were positioned at a 45° angle to the base platform of the 3D printer using SLS technology.
Enhancing Employee Retention Through Talent Management Practices: A Semi-Systematic Literature Review
Authors: Shu Efin
Published: June 2024

The high turnover rate has been a classic issue in the hospitality industry. Employees in the hospitality sector are known for having a high degree of mobility, even on a global scale. In 2023, the employee turnover rate in the industry was the highest among all other industries. Therefore, this issue has been a significant managerial concern in the hospitality sector. In light of the adversity experienced by the hospitality industry in keeping their employees, this paper aims to provide some literature reviews on variables that might strengthen the employees’ intention to stay. Drawing on existing literature, the paper explores the contributions of particular talent management practices and employee-oriented CSR in enhancing employee retention. It highlights the role of upholding work-life balance, quality of work-life, and employee-related CSR. Overall, the paper highlights how those factors are interrelated and should be seen as one concept of human resources best practice. The human resources manager is recommended to plan their manpower competencies due to the dynamic and unpredictable external factors in the future.
Maize stalks derived nanosilica: Synthesis, characterization and its kinetics in soil
Authors:   Department of Soil Science and Agricultural Chemistry, Tamil Nadu Agricultural University, Coimbatore-641 003, India, Rakesh B. , Thiyagarajan C. ,   Department of Sericulture, Forest College and Research Institute, Mettupalayam-641 301, India, Subbu M. ,   Department of Soil Science and Agricultural Chemistry, Tamil Nadu Agricultural University, Coimbatore-641 003, India, Sharmila J.S. ,   Centre for Agricultural Nano Technology, Tamil Nadu Agricultural University, Coimbatore-641 003,, India, Alagarsamy S. ,   Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore - 641 003, India, Narayanasamy C. ,   Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore-641 003, India
Published: June 2024

Aim: The current study aimed to synthesize nanosilica from maize stalks at various calcination temperatures and to evaluate silicon release pattern in soil. Methodology: Nanosilica was synthesized by sol-gel method through thermal decomposition (500-700 oC) of maize stalks and evaluated for silicon release with varied levels (0, 5, 10, 15, 20, 30, 40 mg kg-1) through an incubation experiment and the data obtained was fitted in various kinetic models. Results: Nanosilica synthesized from maize stalks calcined at 700 oC showed spherical morphology with little agglomeration, amorphous nature and higher purity than the products obtained at 500 oC and 600 oC. Incubation experiment revealed that application of nanosilica at 40 mg kg-1 increased the available silicon upto 60 days with slight decrease at 80 days. The silicon release pattern from nanosilica was fitted in kinetic equations and observed that pseudo-second order equation describes the silicon release in a better way than other models. Interpretation: The present study showed a sustainable approach to convert maize stalks into valuable nanosilica, addressing the pressing issue of agri-waste management. The nanosilica synthesized from maize stalks calcined at 700oC exhibited promising characteristics and good silicon release pattern which can be alternatively used as a fertilizer source in agriculture. Key words: Agglomeration, Available silicon, Kinetics, Maize stalks, Nanosilica
POPULASI & POLA DISTRIBUSI Buchanania arborescens (Blume) Blume (Anacardiaceae) PADA TANAH ULTRA- MAFIK DESA PODI, KECAMATAN TOJO, KABUPATEN TOJO UNA-UNA, SULAWESI TENGAH
Authors: Pitopang Ramadanil , Syam Nurfadilah , Rasyiid Mustafid
Published: June 2024

This study aims to determine the distribution pattern and population density of Buchanania arborescens (Blume) Blume in Ultramafic Soil, Podi Village, Tojo District, Tojo Una-Una District, Central Sulawesi. Observations were made using the purposive sampling method by establishing five (5) transects 50x10 m in size which there were subplots with size 10x10 m to observe   tree (DBH >10 cm), 5x5 m for the sapling and 2x2 m for seedling with a distance of 20 m between transects. The distribution pattern of Buchanania arborescens at the study site was determined  by calculating the morbidity index with the results of calculations on seedling  phase Id (0.04), sapling Id (0.05) and tree Id (-1.00). The highest density of Buchanania arborescens is in the seedling phase with a value of 200 individuals/Ha, the sapling phase is 176 individuals/Ha and the lowest value is in the tree phase with a total density of 40 individuals/Ha. The results showed that the distribution pattern of Buchanania arborescens for the seedling and sapling phases were clumped, while the tree phase was uniform. The density of Buchanania arborescens was rare density category.
CCC at the mdw: Interweaving Artistic and Musicological Exploration at Music University
Authors: Chanda VanderHart  , Judith Kopecky
Published: June 2024

Even at one of the world's oldest and largest music universities, the mdw - University of Music and Performing Arts in Vienna, the siloing of fields is the norm. Thanks to budgetary and organizational structures, it is rare that artistic practice and traditional musicology teaching are actively combined; what conservatory students learn in music history seminars and what they learn from their performance teachers exist largely separately from each other.

This exposition documents an ongoing, pragmatic attempt to interweave traditional music research with artistic practice and interventions, thereby introducing students to Artistic Research at bachelor's and master's levels. The CCC (Content-Concept-Context) module was initiated by Judith Kopecky at the Antonio Salieri Department of Vocal Studies and Vocal Research in Music Education and has enjoyed cooperation with the Institute for Musicology and Performance Studies (IMI) for the past three years. Here she, Stephen Delaney and Chanda VanderHart reflect on the promises, surprises, limits, and potential for intertwining scholarship and artistic practice in an institutional setting.
Reinterpreting Ysaÿe’s Annotations - Franck's Sonata - Audio Examples
Authors: Joanna Staruch-Smolec
Published: June 2024

This website provides musical examples linked to my analyses of Eugène Ysaÿe's annotations on scores of César Franck's 'Sonate pour piano et violon'. It is an appendix to the article: Joanna Staruch-Smolec, 'Reinterpreting Ysaÿe’s Annotations. Musical sources relating to Franck’s Sonata in Viola Mitchell’s collection (Juilliard School Library)', Revue belge de Musicologie, 2025.
Kebutuhan Penggunaan Media Berupa Video Pembelajaran Matematika bagi Siswa Tunagrahita
Authors: Agustina Rina , ES Yeni Rahmawati
Published: June 2024

In studying integer arithmetic operations, mentally retarded students use more learning using teaching materials that are still abstract and difficult to understand. The purpose of this study was to analyze the need for media use in the form of mathematics learning videos for mentally retarded students. This type of research is descriptive qualitative research. The data sources for this study were 3 teachers who taught mentally retarded students in class III elementary school (SD) at SDLB Negeri Metro. The instruments in this study were a needs questionnaire for the development of instructional video media, observation sheets and interview guidelines. Data collection techniques in this study were carried out by distributing questionnaires, observations, and interviews. Based on the results of the analysis and discussion, it can be interpreted that: (1) Media is needed in the form of mathematics learning videos that are in accordance with the conditions of mentally retarded students, (2) already know the numbers 1 to 10 and can add up to a value of 10, (3) it is still possible to use learning media with teacher guidance, and (4) students are more interested in using learning videos in learning mathematics.
Media Geogebra dan Kertas Berpetak untuk Meningkatkan Kemampuan Berpikir Kritis Matematis dalam Situasi Discovery Learning
Authors: Suryadinata Nurain , Haikal Luthfi Azmi , Asnawati Rini
Published: June 2024

This research aims to determine the effect of Geogebra and checkered paper on improving mathematical critical thinking skills in Discovery Learning situations. The population in this study was all class IX students of SMP Negeri 2 Seputih Agung, totaling 151 students distributed in five classes. The sample was selected using a cluster random sampling technique to obtain two classes. The research design used was the randomized pretest-posttest control group design. This research data is in the form of quantitative data obtained from test instruments for students' mathematical critical thinking abilities that have met valid and reliable criteria. Based on the results of data analysis using the Mann-Whitney U test with α=0.05, it was concluded that in learning using the discovery learning model, the increase in students' mathematical critical thinking skills in classes that used Geogebra media was higher than in checkered paper media
PELATIHAN PRAKTIKUM FISIKA MENGGUNAKAN SMARTPHONE DENGAN APLIKASI PHYPHOX DAN PTSS BAGI GURU FISIKA DI KABUPATEN LAMPUNG TIMUR
Authors: Wahyudi Ismu , Anggreini Anggreini , Suyanto Eko
Published: June 2024

The government, through the Ministry of Education and Culture, has instructed that learning in schools be carried out online during the Covid-19 pandemic. This policy requires teachers to be able to innovate so that learning runs well and is interesting for students. Online physics learning that has been carried out in schools is hampered by the implementation of practicums, some teachers replace practicums with video demonstrations or do practicums with virtual laboratories, and some teachers even do not do practicums in learning. The physics learning process should be able to guide students in discovering concepts, through a series of activities that involve observing skills, carrying out experiments, and processing and interpreting data from physical variables. These scientific activities cannot be carried out completely only through video demonstrations and virtual laboratories. One way of doing a physics practicum is with the help of a smartphone using several applications such as the Physics Toolbox Sensor Suite and Phyphox. This practicum method can replace actual practicum in the laboratory when learning is done online or hybrid learning. This service is carried out to train teachers in teaching physics with smartphone-assisted practicums using the Physics Toolbox Sensor Suite and Phyphox applications, both online and hybrid learning. This PKM is divided into two activities, the first is in-service training using explanation, discussion, exercise, and simulation methods, and the second is on-job training, where training participants implement it in learning at school and are required to report the results.
Pelatihan Penyusunan Lembar Kerja Peserta Didik Berdiferensiasi Bagi Guru IPA SMP Kabupaten Lampung Selatan
Authors: Jalmo Tri , Lengkana Dewi , Diawati Chansyanah , Fadiawati Noor
Published: June 2024

This training aims to increase participants' understanding of the Merdeka curriculum and skills in developing differentiated learning, especially project-based LKPD. The training was attended by 26 middle school science teachers who are members of the South Lampung Regency Middle School Science MGMP. Training uses scaffolding strategies. The steps used are the teacher who does it and the group who does it. Before the training, participants were asked to carry out a self-assessment regarding their understanding of the Merdeka curriculum and their skills in developing differentiated LKPD. Next, participants will classically be guided by a trainer (the teacher Does it) and interact with friends in one group (the group Does it). The results of the training showed that participants' understanding of the Merdeka curriculum had increased. After the training the number of participants whose understanding was "very good" increased by 11.54%, "good" increased by 19.23%. The resulting LKPD has met the "good" criteria, so it can be concluded that this training is able to increase participants' understanding and skills in developing differentiated LKPD skills.
Peningkatan Pemahaman Guru dalam Menyusun Asesmen Diagnostik Platform Merdeka Mengajar untuk Mengakomodasi Pembelajaran Berdiferensiasi
Authors: Nurhanurawati Nurhanurawati , Viyanti Viyanti , Widyastuti Widyastuti , Permadi Dimas
Published: June 2024

Evaluation of the learning process revealed the fact that: 52.35% of the definition of mathematics and physics learning objectives based on the curriculum is still minimal, 47.59% of assessment documents are not yet sustainable, only 66.67% of teachers respond to students' ideal learning needs, and 45.67% of the assessment process learning is still carried out separately. It was also revealed that there was a need to increase teacher competence regarding diagnostic assessments to accommodate differentiated learning. To answer this need, a workshop activity is needed which aims to train teachers to prepare diagnostic assessments using a combination of quality independent teaching platform instruments. The specific target is to provide understanding, experience and opportunities to disseminate to teachers about the principles of compiling, using and processing the results of diagnostic assessments using the independent teaching platform instrument combination. The method used is in the form of a participatory workshop with the provision of materials, training and practice in preparing question items. On the second and third days, participants continued to compose diagnostic questions on the combination of independent teaching platform instruments. The workshop was held in Building K, FKIP, University of Lampung, attended by 33 participants from various schools. Based on the results of the activities that have been carried out, it can be concluded that the knowledge and understanding of SMP/MTs teachers in mathematics and science has increased and the skills of SMP/MTs teachers in mathematics and science have increased, especially in preparing diagnostic assessments. So it is possible for participants to arrange their own at their respective schools. Following up on this activity, it is necessary to carry out activities with a wider reach and provide continuity and monitoring after this service activity. So that SMP/MTs teachers can practice the use of diagnostic assessments in independent curriculum learning.
Gender Roles, Social Thinking and Normative Aspects: A Pilot Study among Gabonese Women Drivers
Authors: Gaymard Sandrine , Dionzou Nélia
Published: June 2024

In recent years, the emancipation of Gabonese women has gained momentum. Thanks to the launch of the African Women’s Decade in 2010, Gabon is implementing initiatives to empower Gabonese women. Access to driving is one of these initiatives. In the field of social thinking, the study of normative models highlights the ability of respondents to substitute for others and the influence of reference models. The objectives of this pilot study are to see how the models evolve and if it is possible to identify this autonomy in social thinking. A test of alternative choices based on eight pairs of stereotyped normative propositions (the inegalitarian vs. egalitarian model or valuing women) was submitted to a group of 41 Gabonese female drivers. The results show that these women make, on average, egalitarian choices, while they attribute more inegalitarian choices to their parents and male drivers. Regression analysis shows that parental and male drivers’ variables do not contribute to the model. The results are discussed in the context of existing research.
The Effectiveness of Group Counseling Cognitive Restructuring Techniques in Reducing Students' Late Learning Behavior
Authors: Felma Felma , Silalahi Micha Felayati
Published: June 2024

The purpose of this study was to reduce students' late learning behavior through group counseling services with cognitive restructuring techniques. This research uses the type of action research carried out in two cycles. Each cycle consists of four stages, namely: Planning, action, observation, and reflection. The subjects of this study consisted of 5 students with the consideration that the subjects were often late for class. The type of action taken is the provision of group counseling services with cognitive restructuring techniques. Data collection techniques in this study used observation and interviews. The results of this study indicate that after implementing cycle I, the average percentage of late behavior following student learning has changed by 29.34%, while in cycle II the average percentage of late behavior following student learning has changed by 51.33%. The results of this study indicate the level of success of the implementation of actions in cycle II which has been improved based on the results of the reflection from cycle I. It can be concluded that through group counseling cognitive restructuring techniques can reduce the behavior of being late for student learning.