bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of Quizziz Method on Mathematics Test Performance of Junior Secondary School Students in Port Harcourt Metropolis
Authors: Bokolo Faith , Uwah, Idongesit Victor
Published: December 2024

The study focused on effect of Quizziz method on mathematics test performance of junior secondary school students in Port Harcourt metropolis. The study used quasi-experimental study to sample. The population of the study consisted of over 3,250 junior secondary school students in Port Harcourt metropolis. Participants in the study included 100 junior secondary school students from two lower UBE schools in the metropolis. Participants were randomly assigned to experimental (Quizizz group) and control groups. The instrument used in the study was the Mathematics Achievement Test (MAT). The instrument was validated by test experts while Cronbach Alpha method was used in determining a reliability index of 0.87. Experimental procedures involved a pre-test assessment which was administered to both the experimental and control. The experimental group received mathematics instruction using Quizizz for a period of three weeks. After the treatment, a post-test assessment was administered to both groups. Ethical Considerations included an informed consent from participants and parents or guardians. They were also ensured of confidentiality and anonymity while the study was also approved by an independent Research and Ethics expert. As stated earlier, the study lasted for a period of three weeks. The researchers collaborated with the classroom teachers which used the computer lab setting. After the posttest, data collected were analized using paired sample t-test and independent t-test. result showed that
Novedades en el diagnóstico y seguimiento por imagen de enfermedades cerebrovasculares. Revisión de la literatura
Authors: Vasquez Armijos Dayana Paola , Viteri Luna Daniel Stalin , Escaletras Sanchez Odalis Itati , Guarnizo Mogollón Kenny Wilson , Choez Chilan Reyna Rebeca
Published: December 2024

La enfermedad cerebrovascular presenta una alta prevalencia en la mortalidad de población por lo que el diagnóstico precoz es vital para evitar las posibles repercusiones permanentes que pueden generar disminución de la calidad de vida. a imagenología cobra valor al ser un método que puede ser invasivo o no, que nos ayuda con la visualización de posibles patrones asociados a la patología isquémica o hemorrágica. A lo largo de este trabajo se pueden identificar las novedades que presentan estos métodos en cuanto a la mejora en el diagnóstico y seguimiento de la patología cerebrovascular.
Desarrollo Neuropsicológico en Niños y Niñas con Dificultades de Aprendizaje del Consultorio Psicológico de la Universidad Estatal de Milagro
Authors: Rentería Cárdenas Ana Gabriela , Castillo López Suhail Amarilys
Published: December 2024

El estudio se llevó a cabo en el Consultorio psicológico de la Universidad Estatal de Milagro teniendo como objetivo el estudio del desarrollo neuropsicológico en niños y niñas con dificultades de aprendizaje. La metodología de la investigación aplicada fue de tipo no experimental, la misma que estuvo orientada bajo una investigación de campo a nivel descriptivo. Se empleó una muestra no probabilística conformada por doce (12) infantes del sexo femenino y masculino en edades comprendidas entre 7 a 11 años. Para la recolección de datos se empleó el Cuestionario de Madurez Neuropsicológica Escolar (CUMANES), agrupadas en 6 dominios o áreas (lenguaje, visopercepción, funcionamiento ejecutivo, lateralidad y ritmo). El estudio permitió identificar algunos trastornos criterios más frecuentes, como la discalculia, el cual afectó únicamente a las niñas, mientras que la Disgrafía se presentó solo en los niños. Por otro lado, en diagnósticos combinados, como Dislexia/Disgrafía, la afectación es similar en ambos géneros. El nivel Muy Bajo en el IDN (Índice de desarrollo neurosicológico) está asociado principalmente a la Dislexia y Dislexia/Disgrafía, lo que indica que estos trastornos del aprendizaje en la muestra están relacionados con las mayores limitaciones en el desarrollo neuropsicológico.
La Actuación del Notario frente a las personas con discapacidad: Garantizando una atención pertinente y el respeto a los Derechos Humanos
Authors: Lozano García Brianda Cristel
Published: December 2024

La actuación del notario frente a las personas con discapacidad es un componente esencial para garantizar el acceso pleno a la justicia y la protección de los derechos humanos en el ámbito legal. En un contexto en el que la diversidad de capacidades humanas es una realidad, es imprescindible que los notarios cuenten con las herramientas adecuadas para ofrecer una atención inclusiva, respetuosa y accesible a las personas con discapacidad. Esto no solo responde a un mandato ético y profesional, sino que también está alineado con los principios fundamentales de los derechos humanos, tal como lo establece la Convención sobre los Derechos de las Personas con Discapacidad de la ONU. La función notarial implica un compromiso con la legalidad, pero también con la equidad, la inclusión y el respeto por la dignidad de las personas. En este sentido, los notarios deben ser conscientes de las barreras sociales, físicas y comunicativas que pueden enfrentar las personas con discapacidad, y tomar las medidas necesarias para superar estos obstáculos. Esto incluye la adaptación de los procedimientos notariales, el uso de lenguajes accesibles, y la utilización de tecnologías que faciliten la comunicación efectiva. Es fundamental que el notario no solo se limite a ofrecer servicios legales básicos, sino que también actúe como un garante del derecho de las personas con discapacidad a participar plenamente en la vida civil y jurídica. Esto implica una atención personalizada que considere las necesidades específicas de cada individuo, así como la implementación de prácticas que promuevan la accesibilidad y la comprensión de los actos legales que se realizan. Además, el notario debe estar sensibilizado respecto a la importancia de evitar cualquier forma de discriminación, asegurando que los actos notariales sean celebrados de manera equitativa para todas las personas, independientemente de su condición. Por otro lado, la formación continua de los notarios sobre temas relacionados con la discapacidad es clave para mejorar la calidad de los servicios notariales. Esto no solo incluye la capacitación técnica en el marco normativo que protege los derechos de las personas con discapacidad, sino también en el desarrollo de competencias comunicacionales y actitudinales que favorezcan una atención inclusiva y respetuosa. En conclusión, la actuación del notario frente a las personas con discapacidad debe estar orientada a garantizar la accesibilidad, el respeto a los derechos humanos y la inclusión plena de las personas con discapacidad en los actos jurídicos. Esta actuación no solo debe centrarse en la adaptación de los procedimientos, sino también en la creación de un ambiente de confianza y respeto que asegure que las personas con discapacidad puedan ejercer sus derechos civiles y jurídicos de manera efectiva.
Creación de distractores para preguntas de opción múltiple mediante técnicas de incrustación (Word Embedding)
Authors: Ramos Alvarez Jammil Israel , Torres Rommel Vicente , Segarra Faggioni Verónica , Pinza Tapia Eliana Ivanova
Published: December 2024

The automatic generation of distractors for multiple-choice questions in academic documents relies on advanced word embedding techniques, such as Word2Vec. These techniques represent words as vectors in a semantic space, facilitating the discovery of relationships and similarities between them. Through these methods, plausible but incorrect distractors can be created that reflect common misconceptions or are semantically related to the question. This approach has enhanced the quality of assessments by providing more challenging and realistic answer options. Additionally, it has automated the process of creating quizzes, saving time for educators and ensuring greater consistency. However, it is necessary to monitor and adjust this process to avoid implausible incorrect answers or implicit biases. This innovative methodology is transforming the way assessments are designed and administered in educational settings and in academic documents such as guides, quizzes, and written evaluations. In this paper, we present an introduction to the topic, followed by an exhaustive literature review. Subsequently, we describe in detail the methods and algorithms employed. The results obtained from experimentation are analysed and discussed, culminating in robust conclusions and practical recommendations.
Relación entre inteligencia emocional y calidad de vida laboral en una empresa productiva de Pelileo
Authors: Velasco-Herrera Paúl , Lima-Rojas Dayamy
Published: December 2024

The objective of the research is to determine the relationship between emotional intelligence and the quality of work life in the workers of a productive company in Pelileo. The approach is quantitative, non-experimental, cross-sectional design and correlational scope. Data collection was carried out on 150 employees with the Trait Meta-Mood Scale (TMMS-24) and the quality of professional life questionnaire (CVP-35). The results indicate adequate emotional intelligence in all dimensions and regular levels were found in the quality of work life, both overall and by dimensions. The results show a positive and significant correlation of attention with managerial support (coeff. = 0.203, p = 0.013) and with professional quality of life (coeff. = 0.167, p = 0.041); between emotional clarity with managerial support (coeff. = 0.259, p = 0.001), intrinsic motivation (coeff. = 0.216, p = 0.008) and quality of professional life (coeff. = 0.204, p = 0.012); and between emotional repair and managerial support (coeff. = 0.381, p < 0.001), intrinsic motivation (coeff. = 0.383, p < 0.001) and quality of professional life (coeff. = 0.345, p < 0.001).
Evaluación de la Seguridad de Certificados Digitales en las Plataformas Financieras de Ecuador
Authors: Peñarrieta David , Navia Marlon , Garcia Eliana , Zambrano Dannyll
Published: December 2024

This article presents a diagnosis of the application of digital certificates in the virtual banking services of Ecuador. The importance of this topic is based on the increasing attacks on electronic services of financial platforms in the region and the world, due to the exploitation of vulnerabilities discovered by cybercriminals in the weak application of cipher suites. The objective of the research is to show the level of security of these online banking portals (individuals), in the applicability of SSL/TLS protocols, with their respective cipher suites on the server side. Eighteen financial entities were analyzed using the online tool SSL Server Test by Qualys SSL Labs. It was found that 20% of the analyzed banking entities show weaknesses in the applicability of digital certificates, which could lead to cyberattacks on these virtual platforms during the client/server communication process over the internet. Confidentiality, integrity, and availability of data are indispensable characteristics of information security that a user should receive in the virtual banking service. Additionally, this work reviews the recommendations for the use of digital certificates according to the regulations issued by the IETF through the respective RFCs.
OPTIMIZATION OF HPMC IN SERUM GEL CONTAINING BUTTERFLY PEA FLOWER EXTRACT (CLITORIA TERNATEA L.) AS FACIAL MOISTURIZER AND IT’S PHYSICAL STABILITY
Authors: Rahmawati Dewi , Ambari Yani , Ningsih Arista Wahyu , Mayasari Shinta , Aulia Andira , Putri Masitah Nurwidiya , Ressi Monica
Published: December 2024

Skincare refers to a series of skin treatments (epidermis) and the middle layer of the skin (dermis) aimed at protecting and maintaining the body, and is categorized as a cosmetic product. One of the most commonly used cosmetic preparations is skincare serum, which helps maintain skin elasticity and hydration. A rising trend in the industry is the development of serums, and one potential plant to be used as a safe active ingredient in cosmetics is the butterfly pea flower (Clitoria ternatea L), which is rich in flavonoids with antioxidant activity. The objective of this study was to determine whether butterfly pea flower extract serum can be formulated into a facial serum with moisturizing properties and to evaluate the physical stability of the serum preparation. The method used is Laboratory experiments were performed. The butterfly pea flower extract was obtained through maceration with 70% ethanol and then formulated into facial serum using different concentrations of HPMC base at 3%, 4%, and 5%. The results of serum stability tests were obtained using physical stability methods. Physical property tests included organoleptic testing (lavender scent, deep blue color, slightly thick, or serum-like texture), with stable organoleptic properties observed during storage, without any changes ...
Principais mecanismos de resistência em Pseudomonas aeruginosa
Authors: Araújo Isaac Moura , Leite Mariana Ferreira , Filho Samuel Ferreira Leite , Silva Francisca Daliane Severino da , Morais Nathaly Mendonça de , Alves Daniel Sampaio , Sousa Ângella Eduarda da Silva , Gonçalves Cicera Alane Coelho , Martins Anita Oliveira Brito Pereira Bezerra , Morais Luís Pereira de
Published: December 2024

Pseudomonas aeruginosa é um patógeno oportunista Gram-negativo, frequentemente implicado em infecções graves, especialmente em pacientes imunocomprometidos e em ambientes hospitalares. Conhecida por sua adaptabilidade e resistência intrínseca a múltiplos antibióticos, essa bactéria representa desafios significativos no tratamento de infecções, particularmente aquelas envolvendo os sistemas respiratório, urinário e de feridas. Esta revisão explora os principais mecanismos de resistência a antibióticos em P. aeruginosa, incluindo a impermeabilidade da membrana externa, sistemas de bombas de efluxo (como MexAB-OprM) e a produção de β-lactamases como AmpC, VIM e NDM-1, que inativam antibióticos β-lactâmicos. Além disso, são discutidas mutações em porinas, notadamente OprD, e modificações enzimáticas que contribuem para a resistência a aminoglicosídeos. Também são examinados o papel da transferência horizontal de genes na disseminação da resistência e a formação de biofilmes, que protegem as bactérias dos antibióticos e das respostas imunes. Esses complexos mecanismos de resistência dificultam significativamente as opções de tratamento, exigindo terapias combinadas e estratégias antimicrobianas inovadoras. As implicações clínicas, como a necessidade de novos agentes terapêuticos e de práticas rigorosas de controle de infecções, são enfatizadas para conter a crescente ameaça de P. aeruginosa multirresistente em ambientes de saúde.
CARACTERIZAÇÃO DE LIGAS DE Ni-Cu OBTIDAS POR ELETRODEPOSIÇÃO
Authors: Bezerra Isaura Tereza Gonçalves , Truta Luís Felipe Nunes , Silva Akla Jovane da , Araujo Thales Gomes , Oliveira José Anderson Machado , Costa Josiane Dantas , Almeida Arthur Filgueira de , Santos Mathews Lima dos , Campos Ana Regina Nascimento , Santana Renato Alexandre Costa de
Published: December 2024

Objetivo: Avaliar o efeito da densidade de corrente na composição química, na morfologia superficial, na microestrutura e na resistência à corrosão da liga Ni-Cu obtida pelo processo de eletrodeposição. Métodos: A eletrodeposição das ligas de Ni-Cu foi realizada utilizando os seguintes parâmetros: densidade de corrente na faixa de 60 – 250 mA/cm², pH da solução eletrolítica igual a 6 e temperatura constante em 50 °C. O banho eletrolítico foi composto com os seguintes reagentes: citrato de sódio (0,400 mol/L), sulfato de níquel (0,300 mol/L) e sulfato de cobre (0,002 mol/L). Os revestimentos foram caracterizados por MEV, EDX, DRX e testes de corrosão (Impedância, EIE). Resultados: Os resultados de composição química mostraram que é possível obter a liga de Ni-Cu por eletrodeposição utilizando as condições experimentais adotadas neste trabalho. Além disso, observou-se que o aumento da densidade de corrente eleva o teor de cobre na liga e a superfície do revestimento apresentou nódulos e microtrinas. Conclusão: A liga apresentou estrutura cristalina e os revestimentos com maior concentração de cobre apresentaram melhor resistência à corrosão em meio salino (NaCl).
СОХРАНЕНИЕ ЯЗЫКОВ КОРЕННЫХ НАРОДОВ РОССИЙСКОЙ ФЕДЕРАЦИИ: ОПЫТ ЯЗЫКОВОЙ ПОЛИТИКИ РЕСПУБЛИКИ БУРЯТИЯ
Authors: Цыбденова Баирма Жамьяновна
Published: December 2024

В современном многополярном мире с его ускоренными процессами глобализации все большую актуальность приобретают вопросы сохранения культурного многообразия, сохранения языков коренных и миноритарных народов не только России, но и всего мира. В статье ставится цель раскрыть важную роль школы, традиционного села и традиционной семьи в качестве инструментов трансляции и сохранения родного языка и культуры коренных и миноритарных народов. В контексте сегодняшних социокультурных процессов, негативно влияющих на состояние и функционирование родных языков в многонациональных обществах, школа, как социальный институт, выполняет роль воспитания, образования и социализации личности. Традиционное село, как хранилище традиционной культуры, языка, и традиционная семья, как носитель традиционной культуры, являются важными инструментами трансляции и сохранения родного языка и культуры, передачи социально-исторического опыта народа последующим поколениям. Эти институты должны выработать определенную языковую политику и практику для приобщения молодого поколения к родному языку с целью сохранения языка как главной традиционной ценности народа.
ИНГУШСКИЙ ЯЗЫК В КОНТЕКСТЕ ЭТНОКУЛЬТУРНОГО МНОГООБРАЗИЯ РОССИИ
Authors: Барахоева Нина Мустафаевна , Арсельгова Марина Адамовна
Published: December 2024

Cтатья посвящена комплексному рассмотрению современного состояния ингушского языка – одного из государственных языков Республики Ингушетия и значимой составляющей полиэтнического культурного наследия страны. В фокусе исследования находятся ключевые вызовы и проблемы, оказывающие непосредственное влияние на процессы сохранения и развития ингушского языка. Проведен глубокий анализ основных факторов, определяющих актуальное состояние ингушского языка в современных условиях. Представленное исследование базируется на комплексном социолингвистическом подходе, предполагающем изучение языковой ситуации в Республике Ингушетия с учетом социальных, культурных и политико-правовых факторов. В рамках исследования проанализированы статистические данные, в том числе материалы Всероссийских переписей населения, проведен социологический опрос, охвативший 3056 жителей Республики Ингушетия, а также обобщена научная литература по проблематике сохранения и развития национальных и региональных языков. На основе исследования предложены перспективные стратегические направления формирования комплексной системы мер по сохранению и устойчивому развитию ингушского языка. В результате проведенного исследования сделан вывод, что для обеспечения сохранения и дальнейшего развития ингушского языка необходимо сформировать соответствующую инфраструктурную и институциональную основу. Это предполагает внедрение комплекса взаимосвязанных мер, объединенных в целевую программу, включая увеличение финансирования модернизации учебно-методических материалов по ингушскому языку, решение задач по сохранению и обогащению лексического фонда ингушского языка, а также другие ключевые направления. Реализация такой программы действий позволит обеспечить устойчивое функционирование и дальнейшее развитие ингушского языка как важнейшего компонента культурного наследия Российской Федерации.
Экспериментальное определение зависимости микротвердости железоалюминиевых сплавов от предварительного нагрева исходных шихтовых материалов, предназначенных для алюмотермитного переплава
Authors: Худякова В.А. , Жилин С.Г. , Предеин В.В. , Богданова Н.А.
Published: December 2024

В машиностроении, металлургии и электротехнике различные фазы интерметаллидных железоалюминиевых сплавов, ввиду высокой стойкости к коррозии и абразивному износу, находят применение в качестве покрытий элементов конструкций, эксплуатирующихся в условиях сложного нагружения и высоких температур. Относительно невысокая стоимость и распространенность компонентов таких сплавов определяет экономическую целесообразность их применения. Промышленное получение таких сплавов и покрытий на их основе, как правило, осуществляется в ходе значительного числа технологических операций, что затрудняет расширение номенклатуры изделий и определяет пути поиска альтернативных методов. Применение алюмотермитного переплава шихтовых материалов, состоящих из смеси фракций окалины и алюминиевых сплавов, позволяет свести процесс получения интерметаллидных сплавов на основе Fe-Al практически до одной стадии. Ввиду недостатка практических сведений о таком процессе, прогнозирование свойств итоговых сплавов в настоящее время представляется затруднительным. В ходе серии предварительных исследований удалось получить сплавы с содержанием Al, превышающим 50 %. В работе представлены результаты экспериментов по определению влияния дополнительного тепла, вносимого в исходные материалы, на ряд характеристик и значения микротвердости железоалюминиевых сплавов, получаемых экзотермическим переплавом термитных шихт.

In mechanical engineering, metallurgy and electrical engineering, various phases of intermetallic iron-aluminum alloys, due to their high resistance to corrosion and abrasive wear, are used as coatings for structural elements operating under conditions of complex loading and high temperatures. The relatively low cost and prevalence of the components of such alloys determine the economic feasibility of their use. Industrial production of such alloys and coatings based on them, as a rule, is carried out in the course of a significant number of technological operations, which complicates the expansion of the product range and determines the paths to find alternative methods. The use of aluminothermic remelting of charge materials consisting of a mixture of scale fractions and aluminum alloys makes it possible to reduce the process of obtaining intermetallic alloys based on Fe-Al to practically one stage. Due to the lack of practical information on such a process, predicting the properties of the final alloys currently seems difficult. A series of preliminary studies made it possible to obtain alloys with an Al content exceeding 50%. The paper presents the results of experiments to determine the effect of additional heat introduced into the source materials on a number of characteristics and microhardness values of iron-aluminum alloys obtained by exothermic remelting of thermite batches.
Уменьшение толщины фланца в соединениях из замкнутых профилей
Authors: Рытова Т.Г. , Игольников И.С. , Максимова Л.А. , Козина Н.Г.
Published: December 2024

В российских нормах с целью упрощения расчета фланцевых соединений за основу взята гипотеза недеформируемой плоскости контакта фланца. Для достижения данной гипотезы приходится применять достаточно толстые фланцы и болты высокого класса прочности. Несмотря на широкое распространение фланцевого соединения, истинная механика поведения работы узла до сих пор не изучена. Предметом исследования является изучение влияния параметров узла фланцевого соединения на несущую способность.

In Russian standards, to simplify the calculation of flange connections, the hypothesis of a non-deformable contact plane is taken as a basis. Achieving this hypothesis requires using sufficiently thick flanges and high-strength bolts. Despite the widespread use of flange connections, the true mechanics of the assembly behavior remain understudied. This study investigates the effect of flange connection assembly parameters on load-bearing capacity. The results provide insights into optimizing flange thickness while maintaining structural integrity. Keywords: flange connection, bent-welded closed profiles, load-bearing capacity, thickness, flange.
Волновые числа связанной плоской термоупругой волны в ультраизотропной среде
Authors: Мурашкин Е.В. , Радаев Ю.Н.
Published: December 2024

В настоящей работе рассматриваются вопросы распространения плоских гармонических связанных волн температурного инкремента, трансляционных и спинорных перемещений в ультраизотропном микрополярном термоупругом теле и вычисляются их волновые числа. Ультраизотропная модель трактуется как дважды приведенный вариант полуизотропного тела. Проанализированы порядки членов дифференциальных уравнений в частных производных связанной микрополярной термоупругости по шкале, связанной с микро/нанодлиной. Найдены и проанализированы характеристические уравнения для волновых чисел плоских гармонических связанных термоупругих продольных (бикубическое уравнение) и поперечных (биквадратное уравнение) волн. Получены алгебраические выражения для корней характеристических уравнений и отделены нормальные волновые числа с положительной действительной частью.

In present paper, the problems of propagation of plane harmonic coupled waves of temperature increment, translational and spinor displacements in an ultraisotropic micropolar thermoelastic solid are considered and their wavenumbers are calculated. The ultraisotropic model is treated as a doubly reduced version of a semi-isotropic solid. The orders of terms of partial differential equations of coupled micropolar thermoelasticity are analyzed with respect to a micro/nanolength scale. The characteristic equations for wavenumbers of plane harmonic coupled thermoelastic longitudinal (bicubic equation) and transverse (biquadratic equation) waves are found and analyzed. Algebraic expressions for the roots of the characteristic equations are obtained and normal wavenumbers with a positive real part are separated.
BOURDİEU DÜŞÜNCESİNDE ERİL TAHAKKÜM: “ASİYE NASIL KURTULUR?” OYUNUNDA FUHŞA SÜRÜKLENEN KADINLAR
Authors: Özen Özlem , Karan Merve
Published: December 2024

Tarihsel süreç boyunca kadınlar, toplumun belirlediği ahlaki ve etik değerlerin sınırlarıyla sıkça karşılaşmışlar ve toplumsal cinsiyet ayrımları bu sınırların belirlenmesinde önemli bir rol oynamıştır. Kadınların kamusal alana katılımları, kadın hakları mücadelesi açısından hayati öneme sahip olsa dahi, kadınlar özel hayatlarında hâlâ çeşitli tahakküm biçimleriyle karşı karşıya kalmaktadırlar. Bu tahakküm, toplumun kadınların davranışlarını, tercihlerini ve kimliklerini belirleyen mekanizmalarıyla şekillenmektedir. Pierre Bourdieu'nün eril tahakküm kavramı, erkeklerin kadınlar üzerindeki üstünlüğünü ve bu üstünlüğün toplumsal yapılar içinde nasıl sürdürüldüğünü analiz eder. Aynı zamanda, eril tahakkümün toplumsal cinsiyet ilişkilerinin yalnızca bireysel düzeyde değil, yapısal ve sistematik düzeyde nasıl inşa edildiğini ve yeniden üretildiğini açıklar. Bu bağlamda, çalışmada Türk edebiyatının önemli eserlerinden biri olan Vasıf Öngören’in “Asiye Nasıl Kurtulur?” tiyatro oyunundaki kadın karakterlerin fuhşa sürüklenmesindeki nedenler Pierre Bourdieu’nün eril tahakküm kavramı çerçevesinde incelenecektir. “Asiye Nasıl Kurtulur?” tiyatro oyunu, kadınların toplumsal yapılar içindeki konumlarını anlamak ve bu tahakküme karşı duruşlarını ele almak için önemli bir kaynak niteliği taşımaktadır.
Multiple Rebrightenings in the Optical Afterglow of GRB 210731A: Evidence for an Asymmetric Jet
Authors: Li Jin-Da , Gao He , Ai Shunke , Lei Wei-Hua
Published: December 2024

The broadband afterglow of gamma-ray bursts (GRBs) is usually believed to originate from the synchrotron radiation of electrons accelerated by the external shock of relativistic jets. Therefore, the jet structure should have a significant impact on the GRB afterglow features. The latest observations indicate that the GRB jets may possess intricate structures, such as Gaussian structure, power-law structure, or jet-cocoon structure. Most recently, an abnormal afterglow of GRB 210731A has raised extensive attention, whose optical afterglow exhibits multiple rebrightening phenomena within 4 hr, posing a serious challenge to the standard afterglow model. Here we intend to interpret the characteristics of GRB 210731A afterglows within the framework of nonaxisymmetric structured jets, where multiple distinct peaks in the afterglow light curve are caused by the uneven distribution of energy and velocity within the jet in the azimuth angle direction. Through Markov Chain Monte Carlo fitting, we show that a three-component asymmetric structured jet can well explain the multiband afterglow data. The energy difference among the three components is about 2.3 orders of magnitude, with higher-energy components exhibiting faster speeds. The radiation contribution of each component has sequentially dominated the light curve of the afterglow, resulting in multiple peaks, with the highest peak occurring at the latest time. We suggest that in the future, polarization observations should be conducted on afterglows with multiple brightening signatures, which will help to effectively distinguish the structured jet model from other alternative models, such as energy injection, and ultimately help to determine the true configuration of jets.
Virgo Filaments. IV. Using WISE to Measure the Modification of Star-forming Disks in the Extended Regions Around the Virgo Cluster
Authors: Conger Kim , Rudnick Gregory , Finn Rose A. , Castignani Gianluca , Moustakas John , Vulcani Benedetta , Zakharova Daria , Xie Lizhi , Combes Francoise , Jablonka Pascale , Bahé Yannick , De Lucia Gabriella , Desai Vandana , Koopmann Rebecca A. , Norman Dara , Townsend Melinda , Zaritsky Dennis
Published: December 2024

Recent theoretical work and targeted observational studies suggest that filaments are sites of galaxy preprocessing. The aim of the WISESize project is to directly probe galaxies over the full range of environments to quantify and characterize extrinsic galaxy quenching in the local universe. In this paper, we use GALFIT to measure the IR 12 μm (R
12) and 3.4 μm (R
3.4) effective radii of 603 late-type galaxies in and surrounding the Virgo cluster. We find that Virgo cluster galaxies show smaller star-forming disks relative to their field counterparts at the 2.5σ level, while filament galaxies show smaller star-forming disks to almost 1.5σ. Our data, therefore, show that cluster galaxies experience significant effects on their star-forming disks prior to their final quenching period. There is also tentative support for the hypothesis that galaxies are preprocessed in filamentary regions surrounding clusters. On the other hand, galaxies belonging to rich groups and poor groups do not differ significantly from those in the field. We additionally find hints of a positive correlation between stellar mass and size ratio for both rich group and filament galaxies, though the uncertainties on these data are consistent with no correlation. We compare our size measurements with the predictions from two variants of a state-of-the-art semi-analytic model (SAM), one which includes starvation and the other incorporating both starvation and ram pressure stripping (RPS). Our data appear to disfavor the SAM, which includes RPS for the rich group, filament, and cluster samples, which contributes to improved constraints for general models of galaxy quenching.
Electrostatic Transport Characteristics of Olivine Particles under Electron Irradiation in Vacuum
Authors: Gan Hong , Liu Jiahui , Zhang Xiaoping , Jin Hong , Li Yang
Published: December 2024

Electrostatic dust transport on airless planetary bodies, such as the Moon, plays a crucial role in shaping their surface environment and influencing the evolution of surface materials. To investigate the effects of electron irradiation on the transport characteristics of micron-sized dust particles under simulated lunar conditions, we measured the diameters and velocities of moving olivine particles using a laser Doppler system. Experiments were conducted under electron irradiation with energies up to 500 eV and currents ranging from 1 to 500 μA. The results demonstrate a strong dependence of electrostatic dust migration on the incident electrons’ energy and current, with more pronounced effects observed at higher energies. This offers insights into the mechanisms behind localized dust migration during magnetic tail crossings and in the lunar terminal/polar plasma wakes, where electrostatic charging likely plays a key role. However, further observations are necessary to verify these phenomena fully. Olivine particles exhibited significantly higher transport rates than anorthite particles under the same conditions, confirming the distinct transport characteristics of various dust components. Furthermore, based on the patched charge model, we examined the driving force and initial vertical velocity distribution to better understand the mechanisms behind dust lofting. These findings provide valuable insights into dust transport mechanisms on airless planetary surfaces, with implications for future space exploration missions and environmental modeling.
A new species and new records of Chumma (Araneae, Macrobunidae) from South Africa
Authors: Marusik Yuri M. , Haddad Charles R.
Published: December 2024

A new species of the genus Chumma Jocqué, 2001, C. foordisp. nov., is described from the Western Cape, South Africa. New distribution records for C. bicolor Jocqué & Alderweireldt, 2018, C. foliata Jocqué & Alderweireldt, 2018 and C. gastroperforata Jocqué, 2001 are presented. The genus is recorded from the Northern Cape Province for the first time, extending its range extensively to the northwest by approximately 450 km. The distribution of all Chumma species is mapped.
First record of Atypophthalmus umbratus (Diptera, Limoniidae) from Central Europe, a species introduced accidentally throughout global trade of exotic plants
Authors: Jancsó Boróka-Zsuzsánna , Kárpáti Marcell , Keresztes Lujza
Published: December 2024

Here we report the first data of the exotic Atypophthalmus umbratus (de Meijere, 1911) from two Central European countries, Romania and Hungary. This is the first time that the presence of an introduced exotic species of Limoniidae (Diptera) has been reported in the area. The above-mentioned species was first observed in Cluj, Romania, on tropical plant specimens (e.g. Alocasia x mortfontanensis ‘Polly’), which we bought from a large store selling tropical plants, from which both male and female specimens were collected. After that, checking some citizen science platforms of entomological interest, we also noticed record of the species in Hungary, based on their conspicuous wing pattern and general habitus. The presence of this accidentally introduced species far from its native tropical environment highlights the growing intensity of the global exotic plant market and the importance of citizen science in early warning systems for biological invasions.
Invasive alien Coypu (Myocastor coypus) as a prey of the native predator Eurasian Eagle Owl (Bubo bubo) in Bulgaria
Authors: Milchev Boyan , Spassov Nikolay
Published: December 2024

Incorporation of the invasive alien species into the food web by native predators is important both for managing the invasion and for predicting potential predator problems from measures taken against the invasive population. The present study of the Eurasian Eagle Owl (Bubo bubo) diet in the area designated as the initial centre for the introduction of the invasive Coypu (Myocastor coypus) in Bulgaria provided new data on the spread and reproduction of the invader. The small overlap in the distribution of the predator and the invader accounted for the small number of owl pairs with Coypu-containing diets. The long-term study confirmed the hunting of young Coypu by Eurasian Eagle Owls only in years with a very wide food niche of the predator in the respective territory. The occurrence of Coypu in the food of the owl did not depend on the frequency of other wetland inhabitants in the annual diets. The Coypu was incidental prey (range 0.5 – 0.8% by prey number) most likely due to the low density of the invader in the area of cohabitation with the predator.
Le patriotisme du Touring club de France avant la Grande Guerre
Authors: Stumpp Sébastien
Published: December 2024

Le Touring club de France, association créée en 1890 pour promouvoir le cyclotourisme, est le creuset d’un intense activisme patriotique avant la Grande Guerre. Ses dirigeants ne gravitent cependant pas dans les mêmes sphères d’influence que les responsables des fédérations sportives, préparatistes et sportivo-touristiques, souvent proches des milieux libéraux ou radicaux. Ils puisent leurs références dans un nationalisme conservateur d’inspiration catholique (mouvement leplaysien, Ligue de la patrie française), obsédé par la décadence du pays et sa régénération. Ils se saisissent ainsi des loisirs de plein air pour développer un « patriotisme éclairé » et encourager de nouvelles formes d’éducation tournées vers l’homme d’action.
Leveraging Artificial Intelligence/Machine Learning Models to Identify Potential Palliative Care Beneficiaries: A Systematic Review
Authors: Bressler Toby , Song Jiyoun , Kamalumpundi Vijayvardhan , Chae Sena , Song Hyunjin , Tark Aluem
Published: December 2024

Purpose

The current review examined the application of artificial intelligence (AI) and machine learning (ML) techniques in palliative care, specifically focusing on models used to identify potential beneficiaries of palliative services among individuals with chronic and terminal illnesses.

Methods

A systematic review was conducted across four electronic databases. Five studies met inclusion criteria, all of which applied AI/ML models to predict outcomes relevant to palliative care, such as mortality or the need for services.

Results

Of 1,504 studies screened, five studies used supervised ML algorithms, whereas one used natural language processing with a deep learning model to identify potential palliative care candidates. The most common AI/ML algorithms included neural network–based models, logistic regression, and tree-based models.

Conclusion

AI and ML models offer promising avenues for identifying palliative care beneficiaries. As AI continues to evolve, its potential to reshape palliative care through early identification is significant, providing opportunities for timely and targeted care interventions. [
Journal of Gerontological Nursing, 51
(1), 7–14.]
Utility of Fluorescein Angiography for Early Detection of Familial Exudative Vitreoretinopathy in Neurodevelopmental Disorder With Spastic Diplegia and Visual Defects due to
CTNNB1
Variants
Authors: Requejo Figueroa Guillermo A. , Morgan Denise J. , Jardine Griffin J. , Young Marielle P. , Hwang Eileen S.
Published: December 2024

Purpose

To investigate whether wide-angle fluorescein angiography (FA) was useful for detecting familial exudative retinopathy (FEVR) in patients with neurodevelopmental disorder with spastic diplegia and visual defects (NEDSDV).

Methods

This was a retrospective chart review from 2013 to 2023 of all consecutive patients with NEDSDV and pathogenic or likely pathogenic
CTNNB1
variants.

Results

Seven patients (four females, three males) were seen in the ophthalmology clinic (median age: 14 months). One patient presented with a retinal fold in one eye, was observed without FA, and later developed a tractional retinal detachment involving the macula in the contralateral eye. Another patient observed without FA lost vision due to vitreous hemorrhage. Five patients who lacked signs of FEVR in clinic underwent FA under anesthesia; three showed retinal neovascularization or leakage requiring treatment, one showed mild avascularity, and one was normal.

Conclusions

Despite reassuring eye examinations in the clinic, two patients with NEDSDV experienced vi- sion loss from FEVR, and three patients were found by FA to require treatment. FA aided in the detection of FEVR in these patients.

[
J Pediatr Ophthalmol Strabismus
. 20XX;X(X):XXX–XXX.]
Stability analysis of systems with additive time-varying delays via new bivariate quadratic reciprocally convex inequality
Authors: Ge Xiao , Ma Xinzuo , Zhang Yuanyuan , Xue Han , Vong Seakweng
Published: December 2024

This paper focuses on the stability analysis of additive time-varying delay systems. First, a bivariate quadratic reciprocally convex matrix inequality is derived, which serves as a generalization of traditional reciprocally convex inequalities. By applying the Lyapunov–Krasovskii functional method, this matrix inequality is incorporated to form a new stability criterion applicable to systems with additive time-varying delays. Finally, some numerical examples are presented to demonstrate the effectiveness of the theoretical results obtained.
Neural Networks, Probability, and Information
Authors: JO Junghyo
Published: December 2024

The 2024 Nobel Prize in Physics was awarded to Hopfield and Hinton, who laid the foundation for advancements in artificial intelligence. This special issue explores the contributions of statistical physics and information theory to machine learning. Machine learning uses neural networks to represent the probability distributions of data. In this process, ‘raw’ probabilities are refined and structured with the help of information theory. Machine learning can be divided into discriminative and generative models. This article focuses on the roles of neural networks, probabilities, and information, as exemplified by prominent generative models such as the Boltzmann machine, variational autoencoders, and diffusion models. Finally, we conclude by examining the implications of machine learning advancements for physics.
Legal and Ethical Challenges in Digital Forensics Investigations
Authors: Aleke Ngozi Tracy , Trigui Mohamed
Published: December 2024

Digital forensics has become an essential part of modern investigative work. The main goal of this field is to analyze electronic evidence while ensuring its integrity and reliability. Digital forensics is used in a variety of cases, from identity theft to homicide and corporate disputes, often through electronic discovery, or eDiscovery. However, digital forensics faces many legal and ethical challenges. This chapter aims to answer questions about evidence admissibility, jurisdiction conflicts, privacy concerns, and compliance with search and seizure laws that create legal difficulties. Ethical concerns, such as protecting the integrity of evidence, respecting privacy, and avoiding digital bias, will be addressed. As reliance on data-driven algorithms grows, transparency and ethical oversight are needed to prevent unfair outcomes. Balancing the goals of law enforcement with the protection of basic human rights is critical to maintaining fairness, credibility, and trust in digital forensic investigations in today's rapidly advancing technological world.
A Survey on 5G Wireless Network Intrusion Detection Systems Using Machine Learning Techniques
Authors: Yun Michael Chai Chon , Eswaran Sivaraman
Published: December 2024

This survey explores the landscape of Intrusion Detection Systems (IDS) in 5G wireless networks, with a specific emphasis on those leveraging Machine Learning (ML) techniques. The deployment of 5G is poised to revolutionize telecommunications with unprecedented data rates, reduced latency, and enhanced capacity. However, the advanced infrastructure also brings heightened security challenges, necessitating robust and adaptive security measures. IDS have emerged as a key strategy to counteract these vulnerabilities, particularly those that exploit machine learning for anomaly detection and rapid response. This paper reviews several 5G IDS implementations across different domains, including the 5G Core Network, Internet of Things (IoT), and Smart Grids. Each domain's technical and cybersecurity environment is explored for better context in understanding the different implementations available, which are scrutinised based on ML models used, datasets for training and testing, and architecture.
Exploring the Perspectives and Expectations of Special Educational Needs Coordinators on the Use of Special iApps for Children
Authors: Paracha Samiullah , Hall Lynne , Hagan-Green Gillian , Watson Derek
Published: December 2024

The digitalization of education has significantly transformed special education practices and the roles of Special Education Needs Coordinators (SENCOs). One area of rapid growth is the use of learning applications for children with severe intellectual disabilities, with many apps promising both new ways to engage and educational benefits. Despite this potential, research examining the impact of these tools remains limited. This chapter addresses this gap by exploring SENCOs' perspectives and expectations regarding learning apps, specifically Special iApps, for children with severe intellectual disabilities. Through qualitative research methods and an inductive approach, the study investigates the overarching question: “What do SENCOs perceive and expect from learning apps designed for children with severe intellectual disabilities?” The findings shed light on SENCOs' views on the educational effectiveness of these apps and offer critical recommendations to support the integration of mobile technologies in teaching practices.
BIM Technologies in the Reconstruction of Architectural Monuments of Odessa
Authors: Surianinov Viacheslav , Pandas Anastasiia , Perperi Alla , Perperi Alisa
Published: December 2024

An information model of an ancient building in Odessa was built during its restoration with the calculation and strengthening of load-bearing structures. The Autodesk Revit complex was used to build the model. Visualization was performed in the Lumion program. The load-bearing capacity of reinforced concrete structures – lintels and floor slabs – was checked. A technical examination showed that the floor slabs had no damage and did not need reinforcement, so a model of the slab was built in ANSYS 21R2 and an analysis of its load-bearing capacity and deformability was performed using the finite element method, which showed that the stresses and deflections of the slab under operating loads are significantly less than the maximum values. And upon visual inspection of the jumpers, it turned out that some of them were damaged in the stretched area and needed reinforcement. This reinforcement was carried out with steel fiber reinforced concrete, having previously carried out laboratory experimental studies and computer modeling in Autodesk Robot Structural Analysis Professional.