bluuebunny/crossref_metadata_2025 huggingface dataset:
Sistema de Identificación de Incendios en Espacios Interiores
Authors: Caballero Hernández Héctor , Ramos Corchado Marco Antonio , Muñoz Jiménez Vianney
Published: September 2024

Los incendios en espacios cerrados se caracterizan por ser detonados cuando alguna instalación eléctrica está provocando un cortocircuito o por una fuente que genera una chispa en dichos espacios, además, hay presencia de combustibles como gases y materiales sólidos o líquidos altamente flamables. Esta investigación se enfoca en presentar un sistema híbrido de prevención y detección de incendios en lugares cerrados, como casa-habitación, edificios corporativos, laboratorios, entre otros. Se ha propuesto la implementación de sensores para la detección de distintos tipos de gases flamables, así como la detección de gases no flamables que son producto de un proceso de combustión, aunado a esto, se cuenta con sistema de detección por visión de computadora, el cual emplea una red neuronal profunda para la detección de fuego y humo basada en el modelo YOLO (You Only Look Once). Las variables obtenidas por el dispositivo, denominado como DRI3 (Dispositivo de reconocimiento de incendios), tiene la capacidad de almacenar los registros en un servidor local, así como subir los datos obtenidos por los sensores en la plataforma ThingSpeak para el respaldo y análisis de la información. De acuerdo con los resultados obtenidos, el sistema tuvo una capacidad de detección de gases flamables y humo en un 100%, mientras que, la red convolucional empleada para detectar fuego en imágenes digitales tuvo una capacidad de detección del 93%, adicionalmente, la emisión de alertas mediante el envío de mensajes de alerta a celulares se gestionó de forma correcta.
Sistema de Alerta Temprana epidemiológica animal
Authors: Montiel Cruz Edgar , Hernández González Felipe , Collantes Chávez Costa Alejandro Luis
Published: September 2024

En la isla de Cozumel, México, se encuentran especies endémicas y ferales,mismas que se encuentran amenazadas por sus reducidos tamaños poblacionales y porenfermedades. Para el manejo de una problemática que se pudiera presentar y toma dedecisiones, se propone un prototipo de sistema de alerta temprana epidemiológica animal,construida sobre una plataforma Web bajo el modelo cliente-servidor. Se siguió lametodología del ciclo de vida del software junto con el modelo incremental. Para ladefinición de los requerimientos se utilizó el Lenguaje Unificado de Modelado (UnifiedModel Languaje) integrando el desarrollo guiado por pruebas (Test Driven Development).Para la codificación se utilizó el lenguaje de programación JavaScript y MySQL comomotor de base de datos. La implementación de la interfaz de usuario se realizó con elapoyo de las librerías Vue.js y Vuetify.js. Los módulos del sistema comprenden el catálogode especies, captura de casos que incluyen datos de georeferencia y consultas de travésde un mapeo de casos y un módulo de alertas automáticas based en el uso de semáforossimilar al del SARS-COV 19.
Inteligencia Artificial en Sistemas de recomendación Médica: Una revisión de la Literatura
Authors: Calderón Blas Javier A. , Cerdán María Angélica , Sánchez García Angel Juan , Domínguez Isidro Saúl
Published: September 2024

: En México, aproximadamente una de cada tres personas busca información sobre atención médica a través de Internet, considerando factores como la especialidad, horarios, ubicación, costo, eficacia del tratamiento y calidad del trato médico. Para abordar estas búsquedas, se han desarrollado sistemas de recomendación que ofrecen sugerencias personalizadas basadas en información explícita e implícita del usuario. Estos sistemas utilizan diversas fuentes de datos, incluyendo el Internet de las cosas, para equilibrar la precisión, valor agregado, dispersión y estabilidad en las recomendaciones. A pesar de la amplia aplicación en eSalud, la investigación actual carece de un enfoque específico en los sistemas de recomendación de médicos. Este estudio tiene como objetivo presentar los trabajos más recientes en esta área, analizando enfoques, métodos, técnicas y tendencias a través de una revisión sistemática de la literatura siguiendo el proceso de la ingeniería de software basada en evidencia (EBSE). Los resultados muestran una mayor cantidad de técnicas de recomendación basadas en aprendizaje automático, lógica heurística y combinación de ambos enfoques (híbridos). Finalmente, se identifican áreas de investigación abiertas y tendencias en este campo, que serán de interés para futuras aplicaciones en el ámbito médico.
Bienvenida
Authors: Medina Vázquez Santiago
Published: September 2024

ReCIBE es una revista electrónica que busca la divulgación del conocimiento científico en diversas áreas de la ingeniería como la Computación, la Informática, la Biomédica y la Electrónica.Consideramos que la divulgación debería ser una obligación para todo aquel que tenga la capacidad de analizar, sintetizar o generar conocimiento en busca del crecimiento de un pueblo. Para ello existen muchas revistas de carácter científico en dónde publicar resultados generados del arduo trabajo de la investigación y con la experiencia en la industria. Sin embargo, ReCIBE tiene un punto más a favor en comparación a otras revistas, y es que en verdad estamos interesados en la divulgación y en la discusión más que en la competencia.Muchos trabajos valiosos se quedan en el tintero por el hecho de no ser considerados desde su concepción como conocimientos que cambiarían al mundo, nosotros tenemos la filosofía de que una buena idea puede salir prácticamente de cualquier parte. Por lo anterior, cualquier trabajo se convierte en un conocimiento con el potencial para alcanzar metas más grandes.Aunque ReCIBE da prioridad a los trabajos que a juicio de los evaluadores presentan mayor potencial para revolucionar la ciencia, otro tipo de trabajos como son los de estado de arte, análisis o síntesis, son de relevante valor pues pensamos que este tipo de aportaciones facilitan notoriamente el trabajo del investigador al colocar los conceptos más importante de un tema en un mismo lugar, y por supuesto, esto mejora la visión del interesado. Además, en muchos casos, un texto sencillo puede aclarar las dudas que pudieran impedir el generar nuevas ideas, las cuales ampliarán posteriormente las fronteras del conocimiento.Bien se dice que una buena crítica es más constructiva que miles de alabanzas, y es por eso que en esta revista se publicarán los resultados buscando esa crítica de la comunidad participante para mejorar nuestros trabajos con la colaboración multidisciplinaria.Debido a lo anterior, le damos la bienvenida a toda la comunidad académica e industrial, y los invitamos a presentar sus trabajos con el fin de promover sus temas de interés, los cuales serán validados por evaluadores expertos, principalmente en el área de la Computación, la Informática, la Biomédica y la Electrónica. De esta manera, esperamos que ReCIBE se convierta en un punto de discusión sobre los temas que están cambiando al mundo.
Herramienta para establecer y controlar Iniciativas de Mejora de Procesos con MoProSoft - Tool for supporting MoProSoft-based software Process Improvement Initiatives
Authors: Cruz Sandoval Dagoberto
Published: September 2024

La mejora de procesos software es una disciplina cuya premisa es que un proceso de calidad tiene como consecuencia lógica un producto software de calidad. En México, una industria software emergente y compuesta en su mayoría por micro y pequeñas empresas, ha empezado a incursionar en este tipo de disciplina utilizando el modelo mexicano de mejora de procesos conocido como MoProSoft, sin embargo la carencia de conocimiento y experiencia, hace de este tipo de proyectos algo complicado y desgastante. En el presente trabajo se presenta el desarrollo de un marco de trabajo para las micro y pequeñas empresas desarrolladoras de software en México, el cual es apoyado por una herramienta llamada Kaizen que automatiza las fases básicas de una mejora de procesos: compromiso, evaluación, planeación e implementación basadas en los procesos, actividades, prácticas y roles definidos en MoProSoft. La herramienta tiene como objetivo principal proporcionar apoyo a las micro empresas en las iniciativas de mejora por medio de un marco de actividades automatizadas que guían sus pasos durante la ejecución del programa de mejora. Además, se presenta un caso de estudio y resultados cuantitativos de que con el uso de Kaizen cuatro micro empresas mexicanas vieron mejorados sus procesos de desarrollo de software instaurando las prácticas efectivas definidas por MoProSoft.Abstract: Software process improvement is a discipline whose premise is that the naturally result of a quality process is the quality in the software product. The Mexican Software Industry is emergent and mostly composed of very small enterprises. In recent years, many of these companies have been involved in process improvement projects using the Mexican improvement model also known like MoProSoft, however, with the lack of knowledge and experience, the projects become complicated and stressful. In this paper, is presented a framework to implement a process improvement project in very small software development enterprises in Mexico, which supported by a tool called Kaizen, automates the basic phases of process improvement: engagement, assessment, planning and implementation, all based on the processes, activities, practices and roles defined in MoProSoft. The tool's main objective is to provide support to micro enterprises in improvement initiatives through a framework of automated activities to guide the next steps in implementing the improvement program. Furthermore, is presented a study case and quantitative results about the use of Kaizen in four Mexican micro-companies and the improvements in their software development processes by the establishment of the effective practices defined by MoProSoft.Keywords: Software process improvement, MoProSoft, software quality, micro and small enterprises.
Hacia la utilización de recuperación de información en bibliotecas digitales - Towards using of information retrieval in digital libraries
Authors: San Martín Méndez Cecilia , Vázquez Reyes Sodel
Published: September 2024

A pesar de los avances en los sistemas de Recuperación de Información, el problema sigue siendo el acceso a la información, porque la cantidad de documentos disponibles para ser consultados aumenta diariamente. Por lo tanto, el acceso a la información se ha vuelto complejo, cuando se quiere regresar al usuario resultados relevantes sobre la consulta que él ha realizado. Permitir un acceso más fácil y rápido a la información contenida en los documentos de una biblioteca digital, a través de una herramienta que proporcione al usuario información relevante en base a la consulta que se plantee, es el objetivo general del trabajo. La recuperación de pasajes será implementada en un prototipo para un sistema de búsqueda en biblioteca digital. Contar con un sistema que permita realizar consultas de información en lenguaje natural y revisar el contenido de los documentos sin necesidad de conocer nombres de autor o título, será de gran ayuda a los usuarios.Abstract: Despite advances in IR systems, the problem remains access to information, because the amount of documents available for consultation increases daily. Therefore, access to information has become complex when the user wants to return relevant results on the inquiry that he has done. Allow easier and faster access to the information contained in the documents in a digital library, through a tool that provides the user with relevant information based on the query that arises, is the general objective of this work. The recovery passages will be implemented in a prototype for a search in digital library. Having a system that allows to process information queries in natural language and to review the content of documents without knowing names of the author or title, will be helpful to users.Keywords: Passages retrieval, digital libraries and natural language processing.
Desarrollo de aplicación para la gestión del conocimiento de modelos matemáticos - Development of a knowledge management tool of mathematical model
Authors: Rodríguez Cardiel Viridiana , Muñoz Mata Edrisi
Published: September 2024

En la actualidad diferentes áreas científicas hacen uso de modelos matemáticos, como una herramienta básica para diferentes funcionalidades. Generalmente, los modelos matemáticos son muy complejos debido a la naturaleza de los elementos representados. Distintos software, aplicaciones y herramientas, permiten representar y procesar resultados de estos modelos complejos, sin embargo estas herramientas no son diseñadas para entender y crear conocimiento de los modelos. El siguiente trabajo presenta el desarrollo de una aplicación de gestión de conocimiento matemático mediante la utilización de tecnologías de gestión de conocimiento, cuyo objetivo administra y entiende modelos matemáticos. Asimismo se dedica una parte esencial en el proceso y resultados de la herramienta utilizada en el algoritmo propuesto para la minimización del makespan de batch plants multipropósito en el área de procesos del área de ingeniería en su representación informal. Esta representación informal comprende dos códigos distintos: i) la expresión en lenguaje matemático (por símbolos) y; ii) la expresión en lenguaje natural (oración entendible al usuario).Abstract: Nowadays most of the scientific areas use mathematical models as a basic tool to support different functionalities. In general, most of the mathematical models involves too much complexity, due to the nature of mathematical language and the elements that they intent to represent. A wide range of different software, applications and tools can handle those models, however they have not been designed to understand and create knowledge from those models. This work presents the development of an application based on knowledge management technologies, which aim to manage and understand mathematical models. Thus, this paper shows the process and result of the developed tool used in an algorithm for the minimization of the makespan of multipurpose batch plants in the process system engineering area. Finally, two main features for informal representation (for human understanding) are presented: i) each mathematical expression presented in a symbolic manner and; ii) each mathematical expression expressed as natural language sentences.Keywords: Software engineering, ontology, mathematical models.
Mapeo cromático dental a partir de imágenes digitales - Tooth Shade-Matching from Digital Images
Authors: González Sandoval Josué , Martínez Alvarez Monserrat Stephania , Brand Rubalcava Patricia Alejandra , Torres-Ramos Sulema , Román-Godínez Israel , Mendizabal-Ruiz E. Gerardo
Published: September 2024

El mapeo cromático dental es una técnica que consiste en la estimación de las características ópticas de la dentadura del paciente. Su objetivo es crear un mapa de tonalidades que facilite, al especialista, la elección de resinas o cerámicas a utilizar en la restauración de piezas dentales. Actualmente, el mapeo cromático se realiza comparando directamente la dentadura del paciente contra una guía de colores. Dicho procedimiento se ve afectado por diferentes factores como: condiciones ambientales, características del paciente, percepción del especialista, entre otras, lo que involucra un alto grado de subjetividad. En el presente trabajo se describe un método para el mapeo cromático dental a partir de imágenes digitales. El principal objetivo de esta propuesta es reducir la subjetividad en la selección de los materiales para la reconstrucción de piezas dentales, y en un futuro, desarrollar una herramienta que realice este trabajo automáticamente.Abstract: The tooth shade-matching is a technique that involves estimating the optical characteristics of the patient's teeth. It aims to create a map of colors that facilitate the specialist, the choice of resins or ceramics used in the restoration of teeth. Currently, the color mapping is performed by comparing directly the patient's teeth against a color guide. This procedure is affected by different factors such as environmental conditions, patient characteristics, perception of the specialist, among others, which involves a high degree of subjectivity. In this paper a method for mapping tooth color from digital images is described. The main objective of this proposal is to reduce subjectivity in the selection of materials for the reconstruction of teeth, and in the future, develop a tool to do this job automatically.Keywords: Tooth Shade-Matching, Computer Vision, VITA Scale.
Asistente escolar para los estudiantes de Ingeniería de Software: una aplicación móvil - School Assistant for Software Engineering students: a mobile application
Authors: Díaz Mendoza Julio César , Ucán Pech Juan Pablo , Aguileta Gûémez Antonio , Toscano de la Torre Angélica Beatriz
Published: September 2024

En este trabajo se presenta una aplicación móvil nativa en el sistema operativo Android, que nace con el propósito de asistir a los estudiantes de Ingeniería de Software en diferentes procesos administrativos y académicos de su trayectoria escolar. Se describe la metodología utilizada, la arquitectura general del sistema, los elementos del diseño de las diferentes actividades que componen la aplicación, y una evaluación empírica basada en la usabilidad y aceptación de la aplicación por parte de los usuarios.Abstract: This paper presents a native mobile application on the Android operating system, which was established in order to assist Software Engineering students in various administrative and academic processes of their school career. The methodology, the overall system architecture, the design elements of the different activities that make up the application, and an empirical assessment based on usability and acceptance of the application by users, are described.Keywords: Mobile Application, Android, agile methodologies, usability.
Potencial Eléctrico en el Corazón: Representación Mediante un Grafo - Heart Electrical Potential: a Graph Representation
Authors: González-Cervantes Natalia , Espinoza-Valdez Aurora , Salido-Ruiz Ricardo
Published: September 2024

De acuerdo a la Organización Mundial de la Salud (OMS), las enfermedades cardiovasculares constituyen un problema de salud pública por su alta frecuencia, además de que son la principal causa de muerte en todo el mundo. Motivo por el cual es necesario investigar nuevos enfoques de prevención y tratamiento de las complicaciones cardiovasculares. En este trabajo se estudia el potencial eléctrico en el corazón empleando elementos de la teoría de grafos, es decir representando las estructuras cardiacas involucradas y sus conexiones por medio de vértices y aristas. Los resultados muestran que es posible describir el potencial eléctrico en el corazón incorporando información fisiológica en las aristas del digrafo. Esto es, el digrafo puede proporcionar información con respecto al potencial eléctrico por regiones para una mejor localización.Abstract: According to the World Health Organization (WHO), because of its high frequency, cardiovascular diseases are a public health problem, moreover they are the leading cause of death worldwide. Then, it is necessary to investigate new approaches to prevention and treatment of cardiovascular complications. In this paper we studied the electrical potential in the heart using elements of graph theory, i.e., representing cardiac structures involved and their connections through vertices and edges. The results show that it is possible to describe the electrical potential in the heart including physiological information into the edges of the digraph. That is, the digraph can provide information regarding the electrical potential in certain regions for better localization.Keywords: Graph, hearth, electrical potential.
Haciendo el Internet Accesible, un Paso más Hacia la Universalidad de la Información - Making the Internet Accessible, a Step Toward Universality of Information
Authors: Peraza Juan , Quiñonez Yadira , Lizarraga Carmen , Olivarría Monica , Estrada Rogelio , Ortega José
Published: September 2024

Millones de personas diariamente navegan a través de Internet realizando diversas actividades que solventan sus necesidades de navegación. Desde búsquedas de información académica, lectura de noticias hasta pasar horas de ocio. De esa gran cantidad de personas, un porcentaje considerable son personas que padecen de alguna discapacidad visual, motriz o auditiva. Estas personas utilizan herramientas físicas o lógicas que se implementan en sus equipos de cómputo para ayudarlas a navegar en Internet. Este artículo se enfoca en las personas ciegas que navegan todos los días a través de Internet y en el proceso de detección de estos para imprimirles en pantalla un sitio desarrollado especialmente para ellos, cuya intención es proporcionar de funcionalidades que sean de ayuda para que puedan escuchar idóneamente la información hospedada en el sitio.Abstract: Millions of people daily surf the Internet doing various activities that meet their navigation needs. From simple searches of academic information, reading news to spending leisure hours. A considerable percentage of that large population, are people who have a visual, motor or hearing disability. These people use physical or logical tools that are implemented on their personal computers to help them navigate the Internet. This article focuses on the blind people who surf daily through the Internet, also in the process of detection of these to print on the screen a site developed especially for them, whose intention is to provide features that help them to hear properly the information hosted on the siteKeywords: Accessible Internet, Visual disability, W3C, WWW.
Modelización del canal inalámbrico para enlaces punto a punto empleando tecnología Zigbee en entornos exteriores - On Modeling Wireless Channel for point to point links by using Zigbee technology in Outdoors Scenarios.
Authors: Lara Cueva Román Alcides , Merino Jácome Daniel Mauricio
Published: September 2024

En el presente trabajo se realiza el modelización del canal de propagación para una red de comunicación punto a punto (PtP, del inglés Point-To-Point) entre dispositivos que utilizan tecnología ZigBee en entornos suburbanos a 2.4GHz, para poder brindar a la comunidad científica encargada de la planificación y dimensionamiento de redes, un modelo ajustado específicamente a redes con estas características que permitirá aumentar la eficiencia y disminuir los costos implícitos de las mismas. El modelo presentado fue obtenido al interpolar las mediciones de la potencia recibida (RSSI, del inglés Received Signal Strength Indicator) durante el despliegue de una red PtP de longitud variable de 2 a 160 metros, modificando la altura de los dispositivos en intervalos de 25 centímetros y ajustando las curvas resultantes a modelos matemáticos conocidos. En contraposición a diversos artículos de la literatura, nuestro modelo hace énfasis en el efecto causado por la altura de los dispositivos sobre la distancia a la cual se genera discontinuidad en el modelo de propagación, encontrándose que dicha discontinuidad describe un comportamiento exponencial decreciente donde a medida que la altura aumenta, la discontinuidad se aproxima al transmisor, hasta una distancia límite de 60 metros, a partir de la cual la altura de los dispositivos deja de influir en la distancia donde se produce la discontinuidad.Abstract: In the present work we are modeling a propagation channel for a point-to-point (PtP) communication network between devices, using ZigBee technology in 2.4 GHz and suburban environments, in order to provide tools for the scientific community that manage planning and sizing of networks, a model is adjusted specifically to networks with these characteristics that will allow to increase the efficiency and to reduce the implicit costs. The model presented is obtained by interpolating the Received Signal Strength Indicator (RSSI) during the deployment of a PtP network of variable length from 2 to 160 meters, modifying the height of the devices in intervals of 25 centimeters and adjusting the resulting curves to known mathematical models. In contrast to several articles in the literature, our model emphasizes the effect caused by the height of the devices over the distance to which discontinuity is generated in the propagation model, and it was found that this discontinuity describes a decreasing exponential behavior in the measure. And that the height increases, the discontinuity approaches the transmitter, up to a limit distance of 60 meters, from which the height of the devices ceases to influence the distance when the discontinuity occurs.Keywords: ZigBee, RSSI, modeling, wireless channel
Control μ-síntesis para estabilización de un helicóptero de 3 grados de libertad - µ-Synthesis Control for Stabilization of a Helicopter of 3 Degrees of Freedom (DOF)
Authors: Jiménez Mora José Manuel , Ruiz Velázquez Eduardo , Solís Perales Gualberto , García Rodríguez Julio Alberto
Published: September 2024

Este artículo presenta el diseño y puesta en marcha de un controlador robusto para estabilizar un helicóptero de 3 Grados De Libertad (GDL). Esta plataforma de experimentación es desarrollda por la empresa Quanser Inc. La caracterización de algunos parámetros del helicóptero incertidumbres estructuradas e inclusión de funciones de peso permiten obtener un controlador por μ-síntesis. La estabilización del helicóptero es llevada a cabo por el control de los tres ángulos más importantes: elevación, inclinación y viaje. Los resultados experimentales muestran que el diseño de control por la técnica de μ-síntesis proporciona un buen desempeño en sistemas con dinámicas altamente no lineales. Abstract: This work presents the design and implementation of a robust controller to stabilize a helicopter of 3 Degrees of Freedom (DOF). This experimentation platform is developed by the company Quanser Inc. The characterization of some parameters of the helicopter, the structured uncertainties and the inclusion of weight functions allow to obtain a controller by μ-synthesis. The stabilization of the helicopter is carried out by the control of the three most important angles: elevation, pitch and travel. The experimental results show that the control design by the technique of μ-synthesis provides a good performance in systems with highly non-linear dynamics. Keywords: µ-synthesis, 3 DOF helicopter, robust control.
Binary Particle Swarm Optimization for Fair User Association in Network Slicing-Enabled Heterogeneous O-RANs
Authors: Sue Jing Ren , Chuah Teong Chee , Lee Ying Loong
Published: September 2024

The Open-Radio Access Network (O-RAN) alliance is leading the evolution of telecommunications towards a greater intelligence, openness, virtualization, and interoperability within mobile networks. The O-RAN standard incorporates of many components the Open-Central Unit (O-CU) and Open-Distributed Unit (O-DU), network slicing and heterogeneous base stations (BS). Together, these innovations have given rise to a three-tiered user association (UA) relationship in a type of network called heterogeneous network (HetNet) with network slicing-enabled. There is an absence of efficient UA schemes for achieving fair resource allocation in such network scenario. Hence, this study formulates the fairness-aware UA problem as a utility-based combinatorial optimization problem, which is computationally hard to solve. Hence, an efficient Binary Particle Swarm Optimization (BPSO)-based UA scheme is proposed to solve the problem. Through simulations of an O-RAN based HetNet with network slicing-enabled, performance of the proposed BPSO-UA scheme is compared against two other baseline UA schemes. Results demonstrate the effectiveness of the proposed BPSO-UA scheme in achieving high fairness through equitable network slicing resource allocation, thereby leading to higher user connectivity rate and comparable average spectral efficiency. This innovative approach sheds light on the potential of metaheuristic algorithms in tackling intricate UA challenges, offering valuable insights for the future design and optimization of mobile networks.
Nhân tố ảnh hưởng đến hành vi mua sắm trực tuyến của người nước ngoài trên địa bàn Hà Nội
Authors: Trần Thu Hiền , Nguyễn Thường Lạng , Nguyễn Phi Hùng
Published: September 2024

Nghiên cứu tìm hiểu các nhân tố ảnh hưởng đến hành vi mua sắm trực tuyến của người nước ngoài trên địa bàn Hà Nội gồm bốn nhóm nhân tố và sáu giả thuyết được đề xuất. Phương pháp ra quyết định đánh giá và thử nghiệm (DEMATEL) và mô hình cấu trúc bình phương nhỏ nhất từng phần (PLS-SEM) được sử dụng phân tích 184 phiếu khảo sát của người nước ngoài tại Hà Nội. Kết quả cho thấy sự thuận tiện được xác định là nhân tố quan trọng nhất và tác động cùng chiều đến biến hành vi, tiếp theo là dịch vụ trực tuyến, trong khi sự tin tưởng và rủi ro, tính không chắc chắn là những nhân tố tác động ngược chiều. Ngoài ra, sự thuận tiện có tác động gián tiếp đến hành vi mua sắm trực tuyến của người nước ngoài tại Hà Nội thông qua hai nhân tố tính không chắc chắn, sự tin tưởng và rủi ro. Trên cơ sở kết quả nghiên cứu, bài viết đề xuất một số giải pháp nhằm thúc đẩy hành vi mua sắm trực tuyến của người nước ngoài trên địa bàn Hà Nội.
Penerapan Platform DigiLearnHub Untuk Meningkatkan Kemampuan Literasi dan Numerasi Siswa Serta Pelayanan Administrasi di SMAS Kesuma Bakti
Authors: Priandika Adhie Thyo , Saputra Very Hendra , An’ars M. Ghufroni , Darwis Dedi
Published: September 2024

SMAS Kesuma Bakti Bekri (SMAS-KBB) has several priority issues that need to be addressed, includingThe educational report score for literacy skills at SMAS-KBB is still categorized as poor, with a score of 33.33. The educational report score for numeracy skills at SMAS-KBB is also categorized as poor, with a score of 35.56. The management of the school's administrative and financial services system has not been optimized. Based on these priority issues, the proposed solutions areImplementing the DigiLearnHub Platform. Providing training and assistance to teachers in creating and designing engaging literacy and numeracy learning content to be used on the DigiLearnHub platform. Providing training and assistance to students on the use of the DigiLearnHub platform and the importance of improving literacy and numeracy learning as a foundation for mastering science and technology. Implementing an application that can be accessed digitally through the website and mobile for real-time School Administration System. Based on the evaluation results, there was an 84.85% improvement in teachers' ability to create literacy and numeracy learning content. Furthermore, based on post-test results conducted with students, there was an increase in the average student score, with literacy achieving 87.2 and numeracy 86.2. This indicates an improvement in literacy and numeracy learning quality, which is expected to prepare students for the ANBK. In addition, the school administrative service application has improved the school's administrative and financial services. According to survey results, 87% of students and parents expressed high satisfaction with the services provided through the school administration and financial application.
Erken Dönem Hıristiyanlığı Anlamak İçin Açılan Bir Pencere: Didache
Authors: Batuk Cengiz , Altuncan Veysel
Published: September 2024

Didache, erken döneme tarihlendirilmiş bir metindir. 1873 yılında bulunmasına kadar, kayıp olarak nitelendirilmişken, bu tarihten günümüze Hıristiyanlık tarihi araştırmalarında büyük bir ilgi toplamıştır. Didache’nin yazılma tarihi ile ilgili farklı düşünceler olsa da araştırmacılarının çoğu onu MS 50-70 yılları arasına tarihlendirmektedir. Didache, içeriğinde Hıristiyanlığın erken dönemi ile ilgili detay bilgiler içermekle beraber bu bilgiler kimi araştırmacılara göre Erken Hıristiyanlık Tarihini yeniden değerlendirmemizi gerektirecek niteliktedir. Kilise içerisindeki Yahudiler ve Gentileler arasındaki ilişkiyi anlamak ve Hıristiyanlığın Yahudilikten kopuş sürecini daha net ortaya koyabilmek adına önemli bilgiler içermektedir. Çalışmamızın amacı bu bilgilerden hareketle Didache’nin Hıristiyanlığın Kudüs cemaatinden kopuş sürecindeki rolünü araştırmaktır. Bunun için Didache’nin yayınlandığı tarihten itibaren ortaya konulan literatür ve Didache’nin değindiği ve ilişkili olduğu düşünülen Eski ve Yeni Ahit bölümleri incelenmiştir. Bunun sonucunda ise konunun geniş yelpazede tartışıldığı ve tartışmaların Hıristiyanlığın resmi öğretisinden farklı istikamette geliştiği görülmüş, Helenist-Hıristiyan öğretinin Hıristiyanlığın Yahudilikten ayrılması süreci adına vermiş olduğu bilgilere alternatif bir bilgi kaynağı olma potansiyeli olduğu tespit edilmiştir.
Kur’ân’ın “Rükû Edenlerle Birlikte Rükû Edin” Hitabı Bağlamında Yahudilerin İbadetinde Rükû
Authors: Özçelik Yılmaz Bedriye
Published: September 2024

Çalışma, Kur’ân’ın Ehl-i kitabın inanç ve uygulamalarına yönelik tashih edici rolünü, özellikle namazda rükû örneği üzerinden ortaya koymayı hedeflemiştir. Çalışmada betimsel, tarihsel ve karşılaştırmalı yöntemler kullanılmaktadır. Çalışmanın temel kaynakları İslam ve Yahudiliğin kutsal kitapları etrafında şekillenmiş tefsir ve tarih yazınıdır. Günümüzde Karaî ve Sâmirî gruplar dışında Yahudilerin çoğunu oluşturan Rabbâni Yahudiler ibadetlerinde rükȗ ve secde etmemektedirler. Kur’ân vahiy geleneklerindeki ibadet rükünlerine atıfta bulunmaktadır. Çalışmada Yahudilerin erken tarihî süreçlerine ait ayakta, eğilerek, yere kapanarak ve diz üstü çökerek yapılan bedenli dua formları Tanah’ın incelenmesiyle ortaya koyulmaktadır. Ayrıca Rabbânî Yahudiliğin ikinci temel kaynağı Talmud’da günlük ibadette rükû formu tespit edilmektedir. Tefsirlere göre Kur’ân’ın “rükû edenlerle birlikte rükû edin.” hitabı dönemin Yahudilerine yöneliktir. Kur’ân aynı ilahi hitabın Hz. Meryem’e yapıldığını da bildirir. Bu hitaplarla Yahudilerin ibadetleri arasındaki ilişkinin ortaya konulabilmesi için ayetlerin arka planı ve nüzul sebepleri tarih ve tefsir rivayetleri ile tespit edilmektedir.
GENERAL CHARACTERISTICS OF CRIMES RELATED TO THE ILLEGAL TRAFFICKING OF NARCOTIC DRUGS AND PSYCHOTROPIC SUBSTANCES ACCORDING TO THE CRIMINAL CODE OF THE RUSSIAN FEDERATION
Authors:   Lomonosov Moscow State University, Moscow, Russian Federation, SEREBRENNIKOVA A.V.
Published: September 2024

This article analyzes crimes related to the illegal trafficking of narcotic drugs and psychotropic substances in the context of Russian criminal law. Various categories of such crimes are considered depending on the degree of their social danger. Special attention is paid to the criminal-legal assessment of actions and proposals for improving the regulatory framework to protect public health and ensure law and order. The article emphasizes the importance of constant analysis and adaptation of the legal system to changing conditions, as well as discusses strategies to counteract the illegal distribution of narcotic substances.
On the Lagrange Interpolations of the Jacobsthal and Jacobsthal-Lucas Sequences
Authors: Dişkaya Orhan
Published: September 2024

This study explores the formation of polynomials of at most degree $n$ using the first $n+1$ terms of the Jacobsthal and Jacobsthal-Lucas sequences through Lagrange interpolation. The paper provides a detailed examination of the recurrence relations and various identities associated with the Jacobsthal and Jacobsthal-Lucas Lagrange Interpolation Polynomials.
Phenotypic and Genotypic Investigation of the Resistance of Pathogenic Bacteroides fragilis Group Bacteria to Carbapenems
Authors: Özkar Aleyna , Alpsoy Sevim , Ülger Nurver
Published: September 2024

Objective: Bacteroides fragilis, predominantly found in the intestinal microbiota, is one of the most frequently encountered anaerobic pathogens and exhibits resistance to many antimicrobials. The carbapenem-resistant B. fragilis (CR-BF) isolates have been reported in several countries recently with increasing global attention. The high frequency of CR-BF in our hospitalized patients has become an important problem.
For this reason, B. fragilis isolated in our hospital need to be closely monitored for carbapenem resistance. Therefore, we aimed to determine carbapenem resistance in B. fragilis isolated from clinical samples and the presence of the cfiA gene, which encodes for carbapenemase.
Methods: B. fragilis strains isolated from various clinical samples collected between January 2018 and December 2022 were included in the study. Identification of the isolates was performed using MALDI-TOF MS. The susceptibility testing for meropenem and imipenem was determined by the agar dilution method. The cfiA gene was detected by PCR.
Results: A total 89 B. fragilis strains were studied, mostly from intra-abdominal abscesses (31%) and blood cultures (27%). Susceptibility rates for meropenem and imipenem were 85.4% and 89%, respectively. Notably, 12 out of 13 cfiA gene-positive isolates were resistant, suggesting this gene as a marker for carbapenem resistance. However, resistance in one cfiA-negative isolates implies alternative resistance mechanisms.
Conclusion: Routine anaerobic culture, determination of antibiotic susceptibility profiles of isolates, and close monitoring are crucial for managing infections. Regular antimicrobial susceptibility testing helps predict the risk of developing carbapenem resistance, assists clinicians in selecting appropriate antibiotics for empirical therapy, and improves treatment success rates.
Unleashing innovation: 3D-printed biomaterials in bone tissue engineering for repairing femur and tibial defects in animal models – a systematic review and meta-analysis
Authors: Sagar Nitin , Chakravarti Bandana , Maurya Shailendra S. , Nigam Anshul , Malakar Pushkar , Kashyap Rajesh
Published: September 2024

Introduction

3D-printed scaffolds have emerged as an alternative for addressing the current limitations encountered in bone reconstruction. This study aimed to systematically review the feasibility of using 3D bio-printed scaffolds as a material for bone grafting in animal models, focusing on femoral and tibial defects. The primary objective of this study was to evaluate the efficacy, safety, and overall impact of these scaffolds on bone regeneration.

Methods

Electronic databases were searched using specific search terms from January 2013 to October 2023, and 37 relevant studies were finally included and reviewed. We documented the type of scaffold generated using the 3D printed techniques, detailing its characterization and rheological properties including porosity, compressive strength, shrinkage, elastic modulus, and other relevant factors. Before incorporating them into the meta-analysis, an additional inclusion criterion was applied where the regenerated bone area (BA), bone volume (BV), bone volume per total volume (BV/TV), trabecular thickness (Tb. Th.), trabecular number (Tb. N.), and trabecular separation (Tb. S.) were collected and analyzed statistically.

Results

3D bio-printed ceramic-based composite scaffolds exhibited the highest capacity for bone tissue regeneration (BTR) regarding BV/TV of femoral and tibial defects of animal models. The ideal structure of the printed scaffolds displayed optimal results with a total porosity >50% with a pore size ranging between 300- and 400 µM. Moreover, integrating additional features and engineered macro-channels within these scaffolds notably enhanced BTR capacity, especially observed at extended time points.

Discussion

In conclusion, 3D-printed composite scaffolds have shown promise as an alternative for addressing bone defects.
Big data in myoelectric control: large multi-user models enable robust zero-shot EMG-based discrete gesture recognition
Authors: Eddy Ethan , Campbell Evan , Bateman Scott , Scheme Erik
Published: September 2024

Myoelectric control, the use of electromyogram (EMG) signals generated during muscle contractions to control a system or device, is a promising input, enabling always-available control for emerging ubiquitous computing applications. However, its widespread use has historically been limited by the need for user-specific machine learning models because of behavioural and physiological differences between users. Leveraging the publicly available 612-user EMG-EPN612 dataset, this work dispels this notion, showing that true zero-shot cross-user myoelectric control is achievable without user-specific training. By taking a discrete approach to classification (i.e., recognizing the entire dynamic gesture as a single event), a classification accuracy of 93.0% for six gestures was achieved on a set of 306 unseen users, showing that big data approaches can enable robust cross-user myoelectric control. By organizing the results into a series of mini-studies, this work provides an in-depth analysis of discrete cross-user models to answer unknown questions and uncover new research directions. In particular, this work explores the number of participants required to build cross-user models, the impact of transfer learning for fine-tuning these models, and the effects of under-represented end-user demographics in the training data, among other issues. Additionally, in order to further evaluate the performance of the developed cross-user models, a completely new dataset was created (using the same recording device) that includes known covariate factors such as cross-day use and limb-position variability. The results show that the large data models can effectively generalize to new datasets and mitigate the impact of common confounding factors that have historically limited the adoption of EMG-based inputs.
Lipid remodeling in acrosome exocytosis: unraveling key players in the human sperm
Authors: Suhaiman Laila , Belmonte Silvia A.
Published: September 2024

It has long been thought that exocytosis was driven exclusively by well-studied fusion proteins. Some decades ago, the role of lipids became evident and escalated interest in the field. Our laboratory chose a particular cell to face this issue: the human sperm. What makes this cell special? Sperm, as terminal cells, are characterized by their scarcity of organelles and the complete absence of transcriptional and translational activities. They are specialized for a singular membrane fusion occurrence: the exocytosis of the acrosome. This unique trait makes them invaluable for the study of exocytosis in isolation. We will discuss the lipids’ role in human sperm acrosome exocytosis from various perspectives, with a primary emphasis on our contributions to the field. Sperm cells have a unique lipid composition, very rare and not observed in many cell types, comprising a high content of plasmalogens, long-chain, and very-long-chain polyunsaturated fatty acids that are particular constituents of some sphingolipids. This review endeavors to unravel the impact of membrane lipid composition on the proper functioning of the exocytic pathway in human sperm and how this lipid dynamic influences its fertilizing capability. Evidence from our and other laboratories allowed unveiling the role and importance of multiple lipids that drive exocytosis. This review highlights the role of cholesterol, diacylglycerol, and particular phospholipids like phosphatidic acid, phosphatidylinositol 4,5-bisphosphate, and sphingolipids in driving sperm acrosome exocytosis. Furthermore, we provide a comprehensive overview of the factors and enzymes that regulate lipid turnover during the exocytic course. A more thorough grasp of the role played by lipids transferred from sperm can provide insights into certain causes of male infertility. It may lead to enhancements in diagnosing infertility and techniques like assisted reproductive technology (ART).
A glimpse into the world of microRNAs and their putative roles in hard ticks
Authors: Leal-Galvan Brenda , Kumar Deepak , Karim Shahid , Saelao Perot , Thomas Donald B. , Oliva Chavez Adela
Published: September 2024

Ticks are important blood feeding ectoparasites that transmit pathogens to wildlife, domestic animals, and humans. Hard ticks can feed for several days to weeks, nevertheless they often go undetected. This phenomenon can be explained by a tick’s ability to release analgesics, immunosuppressives, anticoagulants, and vasodilators within their saliva. Several studies have identified extracellular vesicles (EVs) as carriers of some of these effector molecules. Further, EVs, and their contents, enhance pathogen transmission, modulate immune responses, and delay wound healing. EVs are double lipid-membrane vesicles that transport intracellular cargo, including microRNAs (miRNAs) to recipient cells. miRNAs are involved in regulating gene expression post-transcriptionally. Interestingly, tick-derived miRNAs have been shown to enhance pathogen transmission and affect vital biological processes such as oviposition, blood digestion, and molting. miRNAs have been found within tick salivary EVs. This review focuses on current knowledge of miRNA loading into EVs and homologies reported in ticks. We also describe findings in tick miRNA profiles, including miRNAs packed within tick salivary EVs. Although no functional studies have been done to investigate the role of EV-derived miRNAs in tick feeding, we discuss the functional characterization of miRNAs in tick biology and pathogen transmission. Lastly, we propose the possible uses of tick miRNAs to develop management tools for tick control and to prevent pathogen transmission. The identification and functional characterization of conserved and tick-specific salivary miRNAs targeting important molecular and immunological pathways within the host could lead to the discovery of new therapeutics for the treatment of tick-borne and non-tick-borne human diseases.
Maternal diet during pregnancy and adaptive changes in the maternal and fetal pancreas have implications for future metabolic health
Authors: Hill David J. , Hill Thomas G.
Published: September 2024

Fetal and neonatal development is a critical period for the establishment of the future metabolic health and disease risk of an individual. Both maternal undernutrition and overnutrition can result in abnormal fetal organ development resulting in inappropriate birth size, child and adult obesity, and increased risk of Type 2 diabetes and cardiovascular diseases. Inappropriate adaptive changes to the maternal pancreas, placental function, and the development of the fetal pancreas in response to nutritional stress during pregnancy are major contributors to a risk trajectory in the offspring. This interconnected maternal-placental-fetal metabolic axis is driven by endocrine signals in response to the availability of nutritional metabolites and can result in cellular stress and premature aging in fetal tissues and the inappropriate expression of key genes involved in metabolic control as a result of long-lasting epigenetic changes. Such changes result is insufficient pancreatic beta-cell mass and function, reduced insulin sensitivity in target tissues such as liver and white adipose and altered development of hypothalamic satiety centres and in basal glucocorticoid levels. Whilst interventions in the obese mother such as dieting and increased exercise, or treatment with insulin or metformin in mothers who develop gestational diabetes, can improve metabolic control and reduce the risk of a large-for-gestational age infant, their effectiveness in changing the adverse metabolic trajectory in the child is as yet unclear.