bluuebunny/crossref_metadata_2025 huggingface dataset:
Численный анализ воздействия града на панель из углепластика
Authors:   ФАУ «Центральный аэрогидродинамический институт им. проф. Н.Е. Жуковского», Жуковский, Россия, Медведский А. Л. , Мартиросов М. И. ,   ФГБОУ ВО «Московский авиационный институт (национальный исследовательский университет)», Москва, Россия, Хомченко А. В. ,   ПАО «Яковлев», Москва, Россия, Занина Э. А. ,   ПАО «Яковлев», Москва, Россия
Published: October 2024

Полимерные композитные материалы (ПКМ) отличаются высокой удельной прочностью и жёсткостью, а также стойкостью к циклическим нагрузкам. Однако, чувствительность к ударным воздействиям из плоскости, а также большое количество форм разрушения являются одним из наиболее существенных недостатков, препятствующих распространению их использования в основных силовых элементах современной авиационной техники. Работы по подтверждению соответствия материалов данного типа сертификационным требованиям не могут быть ограничены только натурными испытаниями из-за наличия бесконечного количества комбинаций структур материала. Весьма актуальной является разработка методики конечно-элементного моделирования ПКМ для расчёта ударных повреждений от различных ударных воздействий. В данной работе рассмотрено влияние числа ледяных градин сферической формы, воздействующих на цилиндрическую шарнирно-опёртую панель из ПКМ, на повреждения монослоёв панели. Град смоделирован с помощью метода гидродинамики сглаженных частиц (SPH). Конечно-элементное моделирование панели проведено послойно объёмными элементами в программном комплексе LS-Dyna (Ansys Inc.). Особенностью модели материала монослоёв панели является линейная зависимость жёсткости элемента от его деформации. Модель материала межслоевого соединения имеет билинейную зависимость силы сцепления от расслоения. Получены зависимости кинетической энергии и контактной силы града с панелью от времени для случаев воздействия на панель одной, двух и трёх градин, а также зависимости перемещений точек контакта от времени. Повреждения в панели оценивались по коэффициентам деградации материала монослоёв. Для всех рассмотренных случаев ударного воздействия в графической форме показан процесс взаимодействия панели из ПКМ и града.
Исследование влияния эксплуатационных и климатических внешних воздействующих факторов (ввф) на характеристики прочности углепластиков авиационного назначения
Authors:   ФАУ «Центральный институт авиационного моторостроения им. П.И. Баранова», Москва, Россия, Богомолова А. Д. , Синицын А. В. ,   ФАУ «Центральный институт авиационного моторостроения им. П.И. Баранова», Москва, Россия
Published: October 2024

В течение последних десятилетий интерес к использованию композиционных материалов в конструкции воздушного судна (ВС) значительно возрос. Современные углепластики авиационного назначения по своим удельным прочностным свойствам могут конкурировать с алюминиевыми и титановыми сплавами. Тем не менее, использование полимерных композиционных материалов (ПКМ) применительно к деталям ВС является сложной технической задачей, которая напрямую связана с особенностями ПКМ. Композиционные материалы (КМ) - многокомпонентные материалы, которые представляют собой пластичную основу (матрица), армированную наполнителями, обладающими высокой прочностью и жесткостью. Сочетание различных веществ приводит к созданию совершенно нового материала, свойства которого количественно и качественно отличаются от свойств каждого из его составляющих. В работе рассмотрены результаты экспериментального определения механических характеристик (предела прочности при изгибе и межслоевом сдвиге после воздействия внешних факторов) и сопоставления полученных результатов с исходным состоянием (до воздействия внешних факторов) углепластиков авиационного назначения. При работе двигателя, вследствие воздействия повышенных температур, происходит полное или частичное испарение всех жидкостей, попавших внутрь конструкции. Поэтому, длительное влияние агрессивных эксплуатационных жидкостей на изделие, возможно лишь при продолжительной стоянке самолета на земле. Поскольку результаты испытаний показывают достаточно большой разброс величин, исходя из значений коэффициента вариации, был проведен дисперсионный анализ данных. Методы дисперсионного анализа позволяют оценить величину влияния конкретных факторов на исследуемое значение прочности. Основная идея однофакторного дисперсионного анализа заключается в сравнении дисперсии исследуемого значения прочности, вызванной действием внешнего фактора, с дисперсией ошибок измерения этого значения прочности. Если различие между ними значимо, то фактор оказывает существенное влияние на исследуемую прочность материала. Было проведено исследование и анализ среднего значения прочности и однофакторного дисперсионного анализа разброса результатов испытаний на межслоевой сдвиг и изгиб.
Metodología para determinar el tipo de política territorial de desarrollo local a escala de GADs
Authors: Espinoza Loor Ligia Elena , Fonseca Vásconez José Fabián
Published: October 2024

La Constitución del Ecuador promueve que los gobiernos autónomos descentralizados (GADs) gocen de autonomía política, administrativa y financiera, dentro de los principios de solidaridad, subsidiariedad, equidad interterritorial, integración y participación ciudadana, lo cual conlleva a entender que cada territorio descentralizado sea el centro de gestión y sostenibilidad de su desarrollo.  Diseñar una metodología para determinar el tipo política territorial de desarrollo local a escala de GADs, cuyos lineamientos consideran parámetros endógenos y exógenos los cuales contribuyan y se articulen con el Plan Nacional de Desarrollo, considerando como caso de estudio Cantón el Empalme de la provincia del Guayas – Ecuador. A partir de la revisión de fundamentos teóricos especializados en la gestión del territorio se promueve métodos de modelación esquemática, comparativa, sintética y analítica, además se usa métodos empíricos modificados de la gestión estratégica en el análisis y aplicación, el enfoque descriptivo del estudio fortalece los preceptos teóricos con su aplicación en el GAD del Empalme. Se presenta la propuesta de un modelo metodológico para gestionar políticas de desarrollo acorde a la realidad territorial, cuyo constructo es diseñado en consideración de las características bióticas y abióticas territoriales, proceso metodológico que se valida de forma práctica en el territorio objeto de estudio. Se establece que el modelo sirve como una herramienta guía para determinar si la estrategia aplicar en un territorio debe de ser progresiva, competitiva, conservadora o defensiva a partir de su estado situacional y de contextos externos.
Importancia de los gastos operacionales en las empresas del sector de alimentación
Authors: Menéndez Marquínez Carlos Alberto , Pazmiño Gavilanez Washington Enrique , Merchan Jacome Veronica Alexandra , Garofalo Velasco Darli Agnelio
Published: October 2024

Los gastos de un negocio van más allá de lo que el cliente recibe al momento de comprar algo. Los costos en un negocio de alimentos van más allá que los comestibles que se utilizan y las personas que realizan la preparación. Hay que considerar los gastos intrínsecos del negocio, así como los que se generan para darle un valor extra al producto o a la empresa. Los rubros de gastos administrativos van desde el alquiler del local, servicios básicos, servicios contables, impuestos prediales, tasas municipales, impuesto a la renta y demás. Los rubros de gastos de ventas son los que el negocio necesita para su funcionamiento y venta de sus productos, dentro de ellos podemos encontrar valores como pago a vendedores, gastos en publicidad, marketing, spots publicitarios, etc. Los valores de gastos financieros se refieren a las tasas e intereses que deben cubrir las empresas por el financiamiento que solicitaron a las entidades financieras para empezar a laborar o para cubrir los rubros del gasto corriente del negocio. En la presente investigación se analizaron los valores de diez negocios de alimentos de Babahoyo, encontrándose que existen empresas donde los gastos operacionales representan hasta el 42% de los costos totales del negocio. Y la empresa con menores valores en gastos operacionales, le representan un 35% del costo total. Por lo que se puede concluir que los gastos operacionales son un rubro importante dentro de los costos totales y las empresas deben tomarlos en consideración para la fijación de los precios.
Modelo educativo, pedagógico y curricular holístico por resultados de aprendizaje: El caso UTB
Authors: Ávila Rodríguez Esmérido Evaristo , Oviedo Rodríguez Marcos , Luperón Terry Juan Miguel , Tablada Martínez Máster Gilma
Published: October 2024

El propósito de esta investigación fue analizar la percepción que tienen los docentes acerca de las nuevas concepciones que presenta el Modelo Educativo vigente en la UTB frente al proceso de enseñanza aprendizaje, está basado en un estudio exploratorio con enfoque cualitativo, se entrevistaron 17 docentes pertenecientes a las cuatro facultades de la Universidad y la extensión Quevedo, de ellos 15 con grado de Magister y 2 con el grado de PhD. Se aplicaron entrevistas en las dimensiones, teóricas, metodológicas y prácticas, así como una revisión de la literatura científica, dentro de los principales hallazgos, se encontró la necesidad de promover la reflexión pedagógica de la comunidad académica sobre las nuevas tendencias y postulados que se asumen en el nuevo modelo Educativo, Pedagógico y Curricular Holístico por Resultados de Aprendizajes, así como las limitaciones que existen en la aplicación de los componentes del modelo en el proceso de enseñanza aprendizaje.
Agendamiento de atención médica y su impacto en el servicio de salud en el seguro social campesino - Los Ríos
Authors: Moran Chuiluiza Gabriela Noralisa , Mendiburu Rojas Augusto Franklin , Espinoza Macias Carlos Alberto , Calderón Zambrano Manuel Danilo
Published: October 2024

El objetivo fue determinar la forma en que el agendamiento de atención médica impacta en el servicio de salud en el seguro social campesino - Los Ríos. El tipo de investigación descriptivo explicativo, se utilizaron los métodos analítico, sintético, inductivo y deductivo y se usó el enfoque cuantitativo. La población de estudio fueron todos los afiliados al seguro campesino del IESS Los Ríos, que fueron 5840 durante el 2022 y se determinó una muestra de 124 afiliados. Los resultados mostraron características referidos a la programación del agendamiento la cual se ve muy afectada por problemas de conectividad y medios de desplazamiento, la orientación para agendar una cita muchas veces genera confusión en los usuarios y lo oportuno del agendamiento que muchas veces no se logra, pues se otorgan citas para fechas muy distantes a la necesidad de atención. Se identificaron puntos referidos al servicio universal que evidencia escasa atención de calidad en servicios de salud, en lo valorativo, la atención primaria es necesaria, así como las referencias y Contrareferencias y en lo resolutivo que requiere infraestructura y equipamiento y sobre todo personal de la salud preparado. Se concluye que la relación entre las variables Agendamiento de atención Médica y Servicio de salud es significativamente positiva, la correlación obtenida fue de Rho = 0,893 lo que establece una alta relación entre las variables y que el oportuno agendamiento de atención médica en los asegurados del seguro social campesino explica en un 79,74% el pertinente servicio de salud que reciben dichos asegurados.
Optimizing Beneficial Oral Hygiene Care: Transitioning from Manual Brushing and Utilizing Powered Toothbrushes to Improve Plaque Control and Prevent Gingival Inflammation
Authors: Sakib S M Nazmuz
Published: October 2024

Objective: The main purpose of this research is to compare the effectiveness of powered and manual toothbrushes in controlling plaque and gingival inflammation. Background: Dental health and maintaining effective oral hygiene practices are crucial. The advantages and disadvantages of using manual or powered toothbrushes in removing gingivitis and plaque are discussed. Methodology: The paper provides an in-depth literature analysis and review of previous articles that investigated the effectiveness of manual and powered toothbrushes. Terms like gingivitis, host factors, manual dexterity, effectiveness of toothbrush types, and safety were analyzed from 2000 to 2024. Results: The research concludes that powered toothbrushes achieve a moderate reduction in plaque and gingival bleeding scores compared to manual toothbrushes, which require more brushing force. Individuals needed to maintain regular oral routines and brush for at least two minutes to achieve desired results. Conclusion: Both toothbrush types are vital for dental health. Powered brushes are considered safe and more effective in plaque and gingivitis removal, especially for individuals with dexterity issues. However, manual brushes remain a choice for many people globally. A person's preference plays a role in choosing between the two types.
Update Dent. Coll. j: 2024; 14(2): 38-44
Gingival Challenges in Parry-Romberg Syndrome: A Multidisciplinary Approach to Oral Health Management
Authors: Singh Akanksha , Rathore Praveen Kumar , Singh Pushpendra , Khulbe Kavya , Singh Rika
Published: October 2024

Background: Parry-Romberg Syndrome (PRS), characterized by progressive hemifacial atrophy, presents unique challenges in oral health management due to its rare nature and varied clinical manifestations. While cutaneous and craniofacial features are well-documented, gingival involvement is less commonly recognized. Case Presentation: We present a case of gingival manifestation of PRS in a 26-year-old female, emphasizing the progressive nature of the condition and its impact on oral health. Clinical examination revealed significant gingival recession on the affected side, leading to tooth sensitivity and compromised periodontal health. Diagnosis: The diagnosis of PRS was established based on characteristic facial asymmetry, radiographic findings, and absence of systemic involvement. Gingival recession was confirmed through periodontal assessment. Management: Management strategies included symptomatic relief with desensitizing toothpaste, preservation of periodontal health through oral hygiene instructions and periodontal therapy, and supportive care tailored to the patient's needs. Multidisciplinary collaboration was essential to optimize patient care and address the complex clinical manifestations of PRS. Outcome: While complete resolution of gingival recession was not achieved due to the progressive nature of PRS, symptomatic relief and preservation of periodontal health were achieved through comprehensive management strategies. Long-term follow-up is essential to monitor disease progression and adjust treatment as needed.
Conclusion: Gingival involvement in PRS underscores the importance of a multidisciplinary approach to oral health management. Recognition of gingival manifestations and implementation of individualized treatment plans are crucial for optimizing oral health outcomes and enhancing the quality of life for affected individuals.
Update Dent. Coll. j: 2024; 14(2): 27-30
Diagnostic Accuracy of Computed Tomography and Clinical Examination in the Assessment of Mandibular Invasion of Oral Squamous Cell Carcinomas
Authors: Hosen Md Ikbal , Akther Kawsar Jahanara , Rahman A F M Shakilur , Talukdar Md Ali Hossain , Zahur Tamanna , Islam Md Jakirul , Haider Ismat Ara
Published: October 2024

Introduction: Computed tomography (CT) scan precisely shows soft and hard tissues in the same test hereby determines the lesion extension, involvement of regional node as well as of bone. Current study was aimed to evaluate the efficacy of clinical examination and CT to assess mandibular invasion in oral squamous cell carcinoma.
Materials and methods: This cross-sectional study was conducted at Dhaka Dental College Hospital from July, 2016 to July, 2017 among conveniently selected 35 patients of histologically confirmed squamous cell carcinoma which was close to the mandible. The patients underwent proper clinical examination. CT scan was performed; preoperative staging and treatment plan was formulated according to the status of bone invasion. After mandibulectomy, the resected specimens were sent for histopathology. The findings from clinical examination and CT were then correlated with the gold standard, postoperative histopathology.
Results: Clinical examination accurately detected 22 cases to have bone invasion and 8 cases with no bone invasion. It also gave 2 false positive and 3 false negative results. On the other hand CT accurately detected 24 cases to have bone invasion and 9 cases with no bone invasion. It provided one false positive and one false negative result. However, sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and accuracy of clinical examination were 88%, 80%, 91.67%, 72.73%, 85.71% respectively (p = 0.0002) and of CT were 96%, 90%, 96%, 90%, 94.28% respectively (p < 0.0001). Clinical examination and CT were found sensitive enough and have an acceptable range of specificity as primary investigative modalities. CT scan outperforms clinical examination in terms of sensitivity, specificity, NPV, and accuracy.
Conclusion: CT scan imaging is the method of choice for planning treatment in advanced oral squamous cell carcinoma. This study reveals how a CT scan can provide additional diagnostic value to detect bone invasion.
Update Dent. Coll. j: 2024; 14(2): 21-26
From Garden to Gumline: Medicinal Plants Revitalize Modern Dentistry
Authors: Iqbal Md Ashif , Islam S M Shahinul , Subah Myesha Tasnim
Published: October 2024

The editorial "From Garden to Gumline: Medicinal Plants Revitalize Modern Dentistry" discusses the growing use of medicinal plants in dental treatments, notably those for periodontal disease. Traditional medicines such as aloe vera, neem, turmeric, green tea, and propolis have been scientifically proven for their antibacterial, anti-inflammatory, and healing capabilities, providing natural alternatives to traditional chemical-based therapies. These plants not only assist to manage gum disease, but they also contribute to overall oral health benefits by minimizing the need for medications and combatting antibiotic resistance. While there are barriers to standardization and additional clinical validation, the editorial emphasizes medicinal plants' potential to become a cornerstone in dental treatment, providing patients with safer, more holistic, and sustainable solutions.
Update Dent. Coll. j: 2024; 14(2):1-2
Management of Geographic Tongue with Zinc and Vitamin B Complex Supplementation: A Case Report
Authors: Sarkar Arup , Kona Fatima Mazid , Mostafi Alaul Qutub , Azam Md Saiful , Choudhury Md Nahid Khurram
Published: October 2024

Background: Geographic tongue is a benign inflammatory condition characterized by erythematous patches on the tongue surface. While often self-limiting, it can cause discomfort and concern for patients. Nutritional deficiencies have been implicated in its etiology, but effective treatments remain limited. Case Presentation: A 23-year-old male from Rajshahi, Bangladesh presented to Update Dental College with asymptomatic erythematous patches on his tongue, consistent with geographic tongue. The patient had no significant medical history or known nutritional deficiencies. Methods: Based on potential associations with zinc and B vitamin deficiencies, the patient was prescribed daily zinc sulfate and a vitamin B complex supplement. Follow-up was scheduled after one week. Results: At 15 days follow-up, clinical examination revealed near-complete resolution of the erythematous patches. The patient reported no adverse effects from the supplementation and expressed satisfaction with the outcome. Conclusion: This case demonstrates rapid improvement of geographic tongue with zinc and vitamin B complex supplementation. While further research is needed, this approach may offer a promising treatment option for some patients with geographic tongue, potentially by addressing underlying nutritional deficiencies.
Update Dent. Coll. j: 2024; 14(2): 36-37
Educational Construction in Ibn Khaldun's Philosophy: Literary Analysis and Contribution to Contemporary Islamic Education
Authors: Hamirudin
Published: October 2024

This article aims to analyze the construction of education in Ibn Khaldun's philosophy and explore its contribution to contemporary Islamic education through a literature-based approach. Using library research methods, this study examines Ibn Khaldun's major work, Muqaddimah, along with various secondary literatures that discuss his philosophical views on education. The findings reveal that Ibn Khaldun views education as a gradual social process, emphasizing practical and moral learning, and the importance of critical, non-dogmatic education. This concept is relevant to the challenges of modern Islamic education, particularly in efforts to integrate intellectual and ethical education to build a generation that contributes to the advancement of civilization.
1877-1878 Osmanlı-Rus Savaşı’nda Kafkas Cephesi’nde Rus Süvari Birlikleri ve Süvari Muharebeleri
Authors: Tanrıverdi Mustafa , Kumanlı Salih Kerim
Published: October 2024

19. yüzyılda teknolojik gelişmelerin ivmelenmesi ile birlikte savaş alanları büyük bir hızla dönüşüme uğradı. Yeni dönemde süvari birliklerinin görev tanımı ise 19. yüzyıl askeri düşünürleri arasında en hararetli tartışma konularından biri haline geldi. Bu süreçte süvari birliklerinin belirleyici hücum rolü tarihe karışırken, cephe gerisindeki lojistik hedeflerin vurulması, örtme ve düşman hareketlerinin keşfedilmesi gibi görevleri ön plana çıktı. Bu açıdan değerlendirildiğinde, 1877-1878 Osmanlı-Rus Savaşı hem gerçekleştiği tarih hem de tarafların süvari güçleri arasındaki asimetri sebebiyle süvari birliklerinin modernizasyon çabalarının incelenmesi noktasında bizlere önemli bir laboratuvar sunmaktadır. Bu çalışmada Rus süvari birlikleri ana çerçeveyi oluşturmaktadır. Öncelikle bu birliklerin savaş öncesindeki modernizasyon süreci ve Kafkasya’da Rus süvari birliklerinin yapılanması mercek altına alınmıştır. Rus süvarilerinin Rus savaş planında arz ettiği önem ve üstlendiği görevlerdeki performansı Osmanlı süvarileri ile karşılaştırmalı biçimde incelenmiştir. Çalışmada süvari birliklerinin ön plana çıktığı muharebeler incelenerek muharebe esnasındaki yetkinlikleri değerlendirilmiştir. Böylelikle süvari birliklerinin Kafkasya Cephesi özelinde savaşın gidişatına ne yönde etki ettikleri tartışılmıştır.
Leisure sedentary time and elevated blood pressure: evidence from the statutory retirement policy
Authors: Li Hao , Zeng Weihong
Published: October 2024

Objectives

The relationship between sedentary behaviors and elevated blood pressure remains inconclusive, and the socioeconomic mechanisms underlying the linkage are rarely discussed. Since retirement is often associated with behavioral changes that impact health, this study aims to provide evidence on changes in leisure sedentary time after the statutory retirement age on elevated blood pressure, along with the socioeconomic mechanisms.

Methods

We utilized data from five waves (2004–2015) of the China Health and Nutrition Survey (CHNS), focusing on males aged 55–65 employed in the formal sector. Leisure sedentary time, the independent variable, was measured based on self-reported data, while diastolic (DBP) and systolic (SBP) blood pressure were the dependent variables. Using statutory retirement policy as an exogenous variation, we employed a continuous difference-in-differences (DID) framework and a propensity score matching difference-in-differences (PSM-DID) approach to examine the relationship between changes in leisure sedentary time after the statutory retirement age and elevated blood pressure. The analysis was conducted using ordinary least squares (OLS). To address potential endogeneity, we applied the instrumental variable (IV) method via two-stage least squares (2SLS).

Results

Our findings indicate an increase in diastolic blood pressure after statutory retirement, attributed to increased leisure sedentary time. However, there was no significant increase in systolic blood pressure. Moreover, physical activity did not appear to offset this rise in blood pressure, while higher educational attainment and having family members employed in the medical field helped mitigate its negative effects.

Conclusion

This study highlights the potential adverse impact of increased leisure sedentary time on diastolic blood pressure among middle-aged men in the formal sector, while also exploring the socioeconomic factors that may alleviate these effects. These results provide a foundation for public health initiatives aimed at addressing the rising prevalence of sedentary behavior and its association with blood pressure issues.
Robust Image Watermarking using DWT, DCT, and PSO with CNN-Based Attack Evaluation
Authors: Alia Mohammad , Hnaif Adnan , Alrawashdeh Aseel , Jaradat Yousef , Masoud Mohammad , Manasrah Ahmad , AlShanty Ahmad
Published: October 2024

Digital Content Protection is one of the most significant research areas that lies at the intersection of cyber-security and multimedia processing. Protect multimedia content from copyright violation, unauthorized use, replication, and online content theft is needed. Digital Image Watermarking is utilized to preserve the copyright of different digital images from forgery. Various techniques had been developed in this regard with two main issues, the method robustness and the resistance against various types of attacks like, Salt and Pepper noise, filtering and blurring. Current Digital watermarking techniques may reduce the quality of the original digital media content if it is not robust. The purpose of this research is to create a robust image watermarking technique against different attack types such as salt and pepper noise and Gaussian noise, ensuring the image content is protected. Specifically, this study proposed a new mechanism for Image watermarking based on combining Discrete Wavelet Transform (DWT), and Discrete Cosine Transform (DCT). Additionally, Particle Swarm Optimization (PSO) was applied to perform the optimization for both the embedding and extraction processes. At the final stage we assess the proposed approach against some types of attacks such as Additive White Gaussian Noise (AWGN). The Denoising Convolutional Neural Network, (DnCNN) was used to evaluate the mechanism against AWGN. For testing, we utilized measures such as Peak Signal-to-Noise Ratio (PSNR) and Normalized Correlation Coefficient (NCC). The experimental results of implementing our proposed method for embedding and extracting watermarks across various host image sizes were encouraging, achieving a PSNR ratio of 0.998 and an NCC of 1 in the absence of attacks. Additionally, our evaluation revealed that a specific type of denoising attack, while damaging the watermark (though not completely), actually improved the image quality. It is also important to highlight that our findings surpassed those reported in existing literature, with the PSNR and NCC values serving as evidence of this superior performance.
Forecasting the Spread of Viral Diseases in Jordan Using the SARIMA Statistical Model
Authors: Al-khateeb Shahed
Published: October 2024

Time series models can help predict disease. Incidence data can be used to predict future disease outbreaks. Advances in modeling techniques allow us to compare the predictive capabilities of different time series models. Public health monitoring systems give essential data for accurate forecasting of future epidemics. This paper describes a study that used two types of infectious disease data, namely Mumps and Chickenpox, collected from a Department of Statistics open source data in mainland Jordan, to assess the performance of time series methods, specifically Seasonal Autoregressive Integrated Moving-Average with Exogenous Regressors. The data collected from 2000 to 2023 were used as modeling and forecasting samples, respectively. The performance was evaluated using two metrics: mean absolute error and mean squared error. The statistical models' accuracy in predicting future epidemic illnesses established their use in epidemiological monitoring. The Seasonal Autoregressive Integrated Moving Average with Exogenous Regressors model, which was used to estimate total mumps cases in Jordan, was applied to a real dataset over the years 2000 to 2023. The dataset was separated into three groups: 78% training, 9% validation, and 13% testing. The results showed a mean squared error of 26629 and a mean absolute error of 152. The model predicted that Jordan will have 2341 cases of mumps by 2028.
A Neuro Phenotypic Evolution Algorithm for Recognizing Human Motion Type
Authors: Stepanyan Ivan , Hameed Safa
Published: October 2024

Living in the modern world requires having a precise, intelligent system that may be suggested to do various activities. Due to the scalability of AI algorithms, we have proposed a phenotypic Evolutionary Algorithm (EA)-based system to assist the Artificial Neural Network algorithm (ANN) in the learning process. Combining the two strategies can result in a smart neuro-evolutionary model that is effective in accomplishing significant duties in various domains. The suggested multi-layer neural algorithm's design creates the conditions for learning via the EA’s processes of crossover, mutation, and selection. To aid in the selection and crossover processes, the learning process phase breaks up the original ANN into multiple ANNs according to the number of hidden layers. ANNs are ranked from worst to best in the selection phase based on the soring function that is applied to the fitness list. The fitness list retains each ANN’s accuracy even after breaking apart the original ANN. The crossover procedure is then applied between the two worst and best ANNs. Mutation provides a means of improvement for the less effective ANNs. Following completion of these processes, the ANN algorithms are combined to create a single ANN algorithm. The Vicon mobile robot (SCITOS G5) system’s multi-dimensional data, which extracted both aggressive and typical human movement, as well as Human Activity Recognition (HAR) datasets extracted by smartphones, both have been applied using the suggested method. The system achieved a high performance and efficiency rate on the intended recognition problem
Developments and Drivers of Low-Cost Smartphone Instrumentation
Authors: Hossain Md Arafat , Canning John
Published: October 2024

Over the past decade, smartphones and various offshoot wearables have become indispensable consumer devices attracting considerable attention beyond telecommunications providing accessible edge computing and data generation into the Internet. Particularly, sensing technologies are rising, and advanced analytics both at the edge and exploiting online computing and camera imaging are growing. The data generated from these are already being collated, stored, processed, and used by various commercial enterprises, raising considerable regulatory and ethical challenges across multiple sectors. At the core of all this remain simple cost-effective sensor technologies and the work toward that. This review examines these sensor technologies to highlight challenges being solved to achieve full-spectrum Internet of Things (IoT), using advances in sensing and material processing including the pivotal role of additive manufacturing in accelerating deployment testing and understanding of these sensors and diagnostic elements. These sensors are the points from which the intelligent IoT “feels”, detects, and makes ideally real-time assessments, creating a global sensory network founded on light that, to our present knowledge, knows no natural equivalent, potentially turning the earth itself into the skeleton of an intelligent organism. It introduces the sensor side of the coming IoT, and while the focus is on smartphone technologies, the principles apply to the majority of IoT network edge technologies.
Diagnostic Framework Linking Eddy Flux Ellipse with Eddy-Mean Energy Exchange
Authors: Chen Ru , Yang Yi , Geng Qianqian , Stewart Andrew , Flierl Glenn , Wang Junyi
Published: October 2024

The design of non-eddy-resolving numerical models requires a good understanding and an appropriate representation of the eddy-mean flow feedback. To understand this feedback, we propose a diagnostic framework that links eddy geometry with the eddy-mean energy exchange terms in the Lorenz energy diagram. This framework provides explicit mathematical formulas that link eddy-mean energy exchange rates with both the mean state structure and the properties of eddy momentum ellipses and eddy buoyancy ellipses. Considering that the mean flow contains both along- and cross-stream variations, we decompose the eddy-mean kinetic energy exchange term into 3 components: one associated with the cross-stream variation in mean flow (

M
C

), one associated with the along-stream variation in mean flow (

M
A

), and one associated with the variation in mean flow (

M
R

). We also state the corresponding geometric formulas. The geometric interpretation of

M
C

is consistent with barotropic instability theories and the literature on eddy geometry. As for

M
A

, the weakening (strengthening) of mean flow in the along-stream direction corresponds to eddy kinetic energy generation (decay) through

M
A

.

M
A

and a portion of

M
R

are related under the quasi-geostrophic assumption. From a global integral perspective, both the along-stream and cross-stream variations in the mean flow contribute considerably to eddy-mean kinetic energy exchange. At the Kuroshio Extension, both the mean state energy level and eddy energy level are key to shaping the spatial pattern of eddy-mean energy exchange. This framework offers a tool for geometrically interpreting eddy-mean energy exchange, which may offer guidance for eddy parameterizations.
Cholesteric Cellulose Liquid Crystal Fibers by Direct Drawing
Authors: Zhang Zhuohao , Wang Qiao , Li Yinuo , Wang Chong , Yang Xinyuan , Shang Luoran
Published: October 2024

Polymer fibers are attracting increasing attention as a type of fundamental material for a wide range of products. However, to incorporate novel functionality, a crucial challenge is to simultaneously manipulate their structuring across multiple length scales. In this research, a facile and universal approach is proposed by directly drawing a pre-gel feedstock embedding a cellulose cholesteric liquid crystal (CLC). An in situ photo-polymerization process is applied, which not only allows for the continuous drawing of the filaments without breakup but also makes the final CLC fibers a colored appearance. More importantly, the multiscale properties of the fibers, such as their diameter, morphology, and the internal liquid crystalline ordering of the molecules (and thus structural color), can be manipulated by several controlling parameters. Combining this cross-scale tunability with a smart functional hydrogel system results in the formation of fibers with structural coloration, self-healing, electrical conduction, and thermal-sensing abilities. We believe that this platform can be extended to other hydrogel systems and will help unlock a wide variety of real-life applications.
Rethinking Enterprise: Challenging Conventional Wisdom and Exploring New Perspectives in Selected Business Environments in Lagos State and FCT Nigeria
Authors: Bala Adamu
Published: October 2024

In Nigeria, enterprise owners frequently face challenges in preserving their market share due to limited entrepreneurial expertise and insufficient comprehension of the business environment. This deficiency in entrepreneurial skill can undermine business profitability, sustainability, and may precipitate eventual failure. Anchored in entrepreneurial orientation theory, this study employed a qualitative multiple case study approach to investigate the strategies utilized by Nigerian small business owners to achieve sustained success beyond the five-year threshold. The research focused on three small business owners in Lagos State and the Federal Capital Territory (FCT), Nigeria, who have managed to extend their business viability beyond this critical period. Data were collected through semi-structured interviews, review of organizational documents, and examination of pertinent artifacts. The thematic analysis of the collected data revealed four principal themes: the necessity of establishing a strategic business direction to steer organizational activities, the implementation of entrepreneurial strategies to secure a competitive advantage, the effective use of internal resources to boost productivity, and the management of environmental challenges to ensure business survival. The study advocates for the adoption of digital technologies to enhance the understanding of the business environment, which can facilitate more strategic planning and resource reconfiguration, thereby contributing to long-term success. The findings of this study have the potential to effectuate positive social change by improving strategy implementation among small business owners, potentially leading to increased employment opportunities and broader economic development within their communities.
The Effect of Quiet Leadership in Promoting Organizational Justice An Analytical Study of the Opinions of a Sample of Teachers at The Al-Furat Al-Awsat Technical University, Al-Kufa Technical Institute, Kufa, Iraq
Authors: Kadhim Ameera Khudhayer
Published: October 2024

The study focused on measuring effect quiet leadership in its three dimensions: (tenacity, modesty, and restraint) in promoting organizational justice in its three dimensions, (distributional justice, procedural justice, and interactive justice) by the teachers at the Technical Institute of Kufa, as the researcher used the descriptive analytical method, A random sample of the teaching staff at the Kufa Technical Institute was chosen as a group to conduct the study. Its size was (86) teaching staff, The study attempted to answer several questions, including the effect of Quiet Leadership in achieving organizational justice, To answer the questions raised, the study was built on two main hypotheses: To verify the validity of the hypotheses that were built, as well as to process the data that resulted from the study’s answer, After using the statistical program (Smart pls) to test the research hypotheses and to reach a set of results and recommendations, the study concluded that there is an influence relationship between quiet leadership and organizational justice and that quiet leadership has a positive effect on the justice of the organization.
An Empirical Study on User Continuous Purchase Intention of Social E-commerce Platforms: A Case Study of Pinduoduo
Authors: Mei Xiaoren , Zheng Haichun , Li Jin , Wang Yihan
Published: October 2024

This study reviews the relevant research on the continuous purchase intention of users on social e-commerce platforms, taking Pingduoduo as an example. The study uses the SOR (Stimulus-Organism-Response) model to consider the social platform atmosphere and user perceptions that influencing continuous purchase intentions. A theoretical model of user continuous purchase intention on the Pinduoduo platform was constructed. The mode and hypotheses were tested through questionnaire surveys and empirical analysis. Data analysis was conducted using SPSS 26 and AMOS 24 software, leading to the following conclusions: [1]. The interactive atmosphere on Pinduoduo significantly positively affects users' perceived entertainment, and the supportive atmosphere affects both users' perceived trust and entertainment. [2]. Users' perceived entertainment positively affects perceived trust, and perceived trust and entertainment significantly influence continuous purchase intention. [3]. Perceived trust among users partially mediates between Pinduoduo's interactive atmosphere and continuous purchase intention, as well as between the supportive atmosphere and continuous purchase intention. The study ends with a discussion of the limitations of the research and the managerial implications derived from the findings.
India's Vision of a Healthy and Developed Nation from the Perspective of the Healthtech Industry
Authors: Hood Mitesh Mohan , Kapoor Dr. Vaibhav , Sawhney Dr. Garima , Singh Harsimarbir
Published: October 2024

Purpose: India's aspiration to become a developed and healthy nation by 2047 is intrinsically tied to advancements in the healthcare technology (healthtech) industry. This article evaluates the role of health technology in transforming healthcare delivery, improving health outcomes, and driving economic growth. It also examines the current state of the healthtech industry in India, identifying key challenges, opportunities, and strategic initiatives required for achieving this vision. Methods: The study involved a comprehensive review of recent reports and literature on the healthtech sector in India. Data was analyzed from various sources including market reports, government initiatives, and industry publications to assess the current landscape, growth projections, and sector-specific developments. Results: In 2024, the Indian healthtech market was valued at $6.5 billion, with projections indicating significant growth to approximately $78.4 billion by 2033, reflecting a CAGR of 28.67%. Key sectors such as digital health, medical devices, biotech, and pharmaceuticals are evolving rapidly. However, challenges such as inadequate infrastructure, regulatory hurdles, and a shortage of skilled professionals persist. Opportunities include expanding digital health infrastructure and fostering public-private partnerships. Conclusions: The healthtech industry is crucial for realizing India’s vision of improved health and development. Addressing existing challenges and leveraging opportunities through strategic initiatives and collaborations will be essential. The convergence of technology and healthcare has the potential to revolutionize healthcare delivery, enhance patient outcomes, and support national development goals.
The Influence of Commitment and Communication on Nurse Performance Through Motivation At Yadika Kebayoran Lama Hospital
Authors: Ligouw Janny , Sitorus Guston , Ilyas Meifida , Noviarti Noviarti
Published: October 2024

This research aims to determine direct and indirect effects Commitment and Communication to Nurse Performance through Motivation at Yadika Kebayoran Lama Hospital. The research design uses Explanatory Quantitative method. Primary data was collected via a Google Form questionnaire. Population and sample in this study, all 36 Nurses were a saturated or census sample. Data analysis method uses path analysis with calculation using Smart PLS 3.3.3 software. The research result show that there is a significant direct influence of commitment and communication on motivation, there is significant direct influence of commitment, communication and motivation on nurse performance both simultaneously and partially. There is also an indirect effect of commitment and communication to nurse performance through motivation at Yadika Kebayoran Lama Hospital.
Costing Techniques And Profitability Trade Off: An Investigation On The Agricultural Firms Listed In The Nairobi Securities Exchange.
Authors: B. C. Omwenga , F.A Yatundu , A. Malenya
Published: October 2024

Costing techniques have great impact on life and global economy especially the profitability levels of Agricultural companies in the Nairobi Securities Exchange (NSE). The profitability levels in the Agricultural firms in Kenya have declined, stagnated or suffered losses in the recent past leading to price fluctuations hence low profitability levels. The drive of this study was to investigate the costing techniques and profitability trade off of agricultural firms listed in the NSE. Specifically the study sought to establish the effect of job costing on determination of the level of profitability in the quoted agricultural firms in NSE. The study was steered by transaction cost theory and applied descriptive research design. The target population of seven (7) listed agricultural firms listed in the NSE, hence adopting the census technique where all the seven respondents were used. Data collection sheet was used to obtain secondary data from audited published financial statements of listed agricultural firms in NSE. The period of the study was five years from 2018 to 2022. The data collected was analyzed using descriptive statistics that were summarized using mean and standard deviation. Diagnostic tests used to test the research hypothesis included tests of normality, autocorrelation, collinearity and linearity tests. Correlation, regression analysis and multiple linear regression models was carried out to show whether and how strongly changes in costing techniques were related to firms’ profitability and to determine the association amongst costing techniques and profitability. The findings were presented in figures and tables and prose form for its discussions. Job costing had a significant effect on the profitability of agricultural firms listed in the NSE when measured alongside other costing methods. Both the coefficient is positive (β1=0.565) and the p-value is lower than 0.05, indicating statistical significance. The recommendation to the industry is to prioritize Job Costing given its significant positive effect on profitability of agricultural firms should consider implementing and expanding its use. Firms using other costing methods should reassess their effectiveness and consider integrating Job Costing elements into their existing systems. For academia, conduct more studies to authenticate these findings across different contexts, firm sizes and geographical locations within the agricultural sector. Emphasize on Job Costing method in accounting and agricultural management curricula while still maintaining a balanced approach to other costing methods. For policy formulators, consider policies that encourage or incentive the adoption of Job Costing method in agricultural companies like, tax benefits or grants for implementation and developing guidelines or standards of costing.
A Study of Stress Management and Causes of Stress Among Youth
Authors: P S Anjana
Published: October 2024

Stress represents a state of mental strain experienced by individuals due to challenges in their environment and social interactions, often leading to various health issues. Adolescence is a critical phase marked by significant life changes, during which young people are expected to excel in society. Therefore, they should develop effective stress management skills to ensure a healthy transition into adulthood. As young individuals navigate through this period, they encounter numerous adjustments in their lives, including new relationships, experiences, and responsibilities, contributing to their stress levels. Recognizing the sources of stress and learning coping mechanisms are crucial for their well-being. Studies reveal that stress among youth commonly stems from academic pressures, social relationships, life transitions, and career decisions, resulting in psychological, physical, and behavioral challenges. Addressing these stressors requires a focus on positive developmental approaches, fostering supportive environments, promoting outdoor activities, and minimizing negative influences on learning. These findings offer valuable insights for students, educators, counselors, and career advisors.