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Limb Dominance Does Not Affect Single-Leg Hop Performance In Non-Injured Young Athletes, Rawan Aldhabi

Journal of Medical Rehabilitation Science

Background: The concept of leg dominance is important in clinical settings. Single-leg hop (SLH) tests are frequently used to assess injury-risk and guide return-to-sport decision after lower-limb injury, yet the influence of limb dominance on SLH performance in non-injured young athletes remains unclear. The aim of the study was to examine the influence of limb dominance on SLH test performance in young healthy athletes, and to explore the relationships among different types of SLH tests. Methods: Forty-seven healthy collegiate athletes (mean age 21.44 ± 3.5 years; 26 males and 21 females) completed three SLH tests: single hop for distance (SHD), …

An Exploration Of Therapists' Perspectives On Treatment Approaches And Outcomes For Trigger Finger In Saudi Arabia, Badr F. Alduqsi, Naif B. Abudken, Hatim A. Al-Johani, Ahmed M. Bajunayd

Journal of Medical Rehabilitation Science

Background: Trigger finger (stenosing tenosynovitis) is a common hand condition characterized by pain, stiffness, and locking of the affected digit. Although conservative management strategies, particularly splinting and corticosteroid injections, are widely implemented in clinical practice, there is currently no universally accepted gold standard for the treatment of trigger finger. Furthermore, regional evidence describing therapists' preferences and clinical decision-making processes in Saudi Arabia remains limited. Objectives: This study aimed to explore the perspectives of occupational therapists, physical therapists, and physicians in Saudi Arabia regarding preferred conservative treatment approaches for trigger finger, and to identify the key factors influencing clinical decision-making and …

Prevalence And Association Between Major Depressive Disorder And Cognitive Impairment In Hemodialysis Patients At King Abdulaziz University Hospital, Jeddah, Saudi Arabia, Faten N. Alzaben

Journal of Medical Rehabilitation Science

Objectives: Patients with end-stage renal disease (ESRD) undergoing maintenance hemodialysis experience a substantial psychological and cognitive burden. This study aimed to determine the prevalence of major depressive disorder (MDD) and examine its association with cognitive impairment among patients receiving hemodialysis. Materials and Methods: A cross-sectional study was conducted among 30 consecutive patients aged 18–65 years undergoing maintenance hemodialysis at King Abdulaziz University Hospital, Jeddah, Saudi Arabia. Major depressive disorder was diagnosed using the Structured Clinical Interview for DSM-IV Axis I Disorders (SCID-I). Cognitive function was assessed using the Montreal Cognitive Assessment (MoCA), with cognitive impairment defined as a MoCA score …

Exploration Of Radiotherapy-Related Insufficiency Fractures In Gynaecological Cancer: A Service Evaluation Report, Vicki Hands

South West Clinical School Journal

No abstract provided.

Efficiency Comparison Of Reduced Graphene Oxide (Rgo) Composite-Incorporated Polyacrylonitrile Nanofibrous Filters For Respirable Crystalline Silica Dust And Coal Dust, Mahsa Moradi, Ashish Kakoria, Lina Zheng, Guang Xu

Mining Engineering Faculty Research & Creative Works

The health of miners working in underground mines is greatly threatened by their exposure to respirable crystalline silica (RCS) found in coal dust. While coal dust includes RCS, it is important to know the specific filtration efficiency for RCS particles compared to coal dust to improve protective measures. This study compares the filtration efficiency of reduced graphene oxide (rGO) composite-incorporated Polyacrylonitrile (PAN) nanofibrous filters at four different concentrations of rGO (0, 2, 6, and 10 wt.%) for RCS particles and coal dust. The filters were made using the electrospinning method. They were tested separately with RCS particles and coal dust …

Bifurcation Exploration Of Ion Acoustic Solitons Formation Of A Nonlinear Beta Fractional Kadomtsev-Petviashvili Burger Model In Plasma State, Mst. Razia Pervin, Alrazi Abdeljabbar, Fahad Sameer Alshammari, Mst. Shekha Khatun, Harun Or-Roshid

Mathematical Modelling and Numerical Simulation with Applications

This research presents an extensive investigation of Ion acoustic soliton dynamics governed by a Beta-fractional Kadomtsev-Petviashvili-Burgurs (KPB) model. By engaging the planar dynamical system scheme in aggregation with the extended $(\phi, \psi)$ expansion, Kudryashov expansion, and the NMKM analytic schemes, we create a broad class of exact nonlinear pattern wave solutions. The local stability edifice of the fractional plasma model is explored through bifurcation theory, enabling the far-reaching classification of all admissible phase diagrams. Conforming Ion acoustic wave structures allied with every detour alignment are systematically assembled. Owing to the fractional and dissipative appearances of the model, an all-embracing assortment …

Numerical Simulations And Hyers-Ulam Stability Of A Novel Nonlocal Anthropogenic Cutaneous Leishmaniasis Mathematical Model, Khalid Fanoukh Al Oweidi, Zakirullah -, Kamal Shah, Thabet Abdeljawad

Mathematical Modelling and Numerical Simulation with Applications

In this work, the fractal-fractional Atangana-Baleanu derivative with the Mittag-Leffler kernel is employed to capture the memory and hereditary effects inherent to anthropogenic cutaneous leishmaniasis transmission dynamics. The Banach fixed-point theorem and contraction mapping principle are used to prove the existence and uniqueness of solutions, while Hyers-Ulam stability of the system is analyzed to demonstrate the robustness of solutions with respect to small perturbations. Using a nonlinear least-squares approach, model parameters and fractional order are estimated using epidemiological data from the World Health Organization. The basic reproduction number $R_0 = 0.53$ indicates that the disease is under control after adding …

Markov-Modulated Queueing Network For Mobile Traffic Aggregation With Threshold-Controlled Buffers, Anton A. Esin, Elmira Yu. Kalimulina

Mathematical Modelling and Numerical Simulation with Applications

We study the problem of data transmission from mobile platforms operating in high-speed transit between cellular base stations, under conditions of unstable and intermittent connectivity. Conventional queueing and connectivity models often fail to capture the combined effects of rapidly changing signal conditions, finite buffer capacity, and dynamic topology. We aim to develop a tractable yet expressive model that integrates stochastic link availability, queue dynamics, and buffer control. We propose a mathematical framework based on queues whose service intensities are modulated by a continuous-time Markov chain (CTMC) representing signal conditions along a high-speed trajectory. The core subsystem is a two-stage (aggregation …

Optimal Control And Bifurcation Analysis Of A Predator–Prey Model With Self-Limiting Growth And Predator Disease, Dipo Aldila, Muhammad Akmal Fasya, Bevina D. Handari, Chidozie Williams Chukwu, Olumuyiwa James Peter

Mathematical Modelling and Numerical Simulation with Applications

We propose and analyze an eco-epidemiological predator–prey model that incorporates self-limitation and disease transmission within the predator population. The model is formulated as a system of ordinary differential equations describing logistic prey growth under the interspecific interaction with the predator. On the other hand, the predator population is divided into susceptible and infected classes, whose growth is constrained by prey availability. Three biologically relevant equilibria are identified: predator extinction, disease-free coexistence, and coexistence with endemic disease. The existence and stability of these equilibria are determined by key ecological and epidemiological thresholds, including the basic reproduction number. Using numerical continuation methods, …

Measuring Market Risk Through Entropic Var, Dragomir Nedeltchev, Tsvetelin Zaevski

Mathematical Modelling and Numerical Simulation with Applications

The article aims to measure the market risk beyond the basic risk measures like the Value-at-Risk (VaR) and the Expected Shortfall (ES). The Entropic Value-at-Risk is selected among the available measures based on its advantages -- it is the coherent upper bound of the VaR and ES. This risk measure is applied to the classical Black-Scholes model as well as to some more realistic ones, such as the exponential tempered stable model (the log-returns are presented by a tempered stable L\'evy process), the stochastic volatility model of Heston, its jump extension of Bates, and another stochastic volatility model but with …

Nursing Students’ Attitudes About Correcting Health Misinformation On Social Media, Heather Ann Hill

Walden Dissertations and Doctoral Studies

Health misinformation on social media is a global public health concern. Research has shown that health misinformation causes significant harm in communities, especially for vulnerable populations with existing health disparities. Nurses have been urged to play a more significant role in combating health misinformation. Existing research has shown that nurses are hesitant to correct health misinformation on social media, but attitudes among current nursing students have not been examined. The purpose of this qualitative descriptive study was to explore nursing students' attitudes about correcting health misinformation on social media. Guided by Ajzen’s theory of planned behavior and Paterson and Zderad’s …

Propagation And Interaction Of Gravity Currents Induced By Successive Release Of Two Lock Fluids, Khem Prasad Bhattarai, Subhas Karan Venayagamoorthy

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This study investigates the dynamics of sequentially released gravity currents in a lock-exchange configuration consisting of two lock fluids using high-resolution numerical simulations and compares them with the classical single-lock exchange. The results demonstrate that, in a two-lock-fluid configuration, the overtaking of the lighter lock current by the heavier lock current alters the current's front dynamics, leading to complex velocity transitions. Before overtaking occurs, the front propagation is slower than in the classical single-lock-fluid case because of lower density contrast, but after overtaking, the heavier lock fluid accumulates at the head region of the current and enhances its speed. The …

Impact Of Tropical Cyclones On Food And Nutrition Security: A Global Scoping Review And Thematic Analysis, Patience M. Chiotha, Budi Haryanto

Jurnal Epidemiologi Kesehatan Indonesia

The increasing frequency and intensity of tropical cyclones driven by climate change pose growing threats to food and nutrition security. Globally, an estimated 80–90 tropical cyclones occur annually, affecting approximately 119 million people. Evidence regarding their impact on food systems, dietary patterns, and nutritional status remains fragmented. This scoping review aimed to map global evidence on the impacts of tropical cyclones on food and nutrition security, identify key pathways of impact, and examine affected indicators at household and individual levels. The review followed Joanna Briggs Institute guidelines and PRISMA-ScR. Searches were conducted in PubMed/MEDLINE, Web of Science, Scopus, and Google …

Waktu Pemulihan Saturasi Oksigen Pada Pasien Covid-19 Di Rsnd Semarang: Pengaruh Usia, Derajat Keparahan, Dan Komorbiditas, Hererapratita Aysha Hapsari, Yosef Purwoko, Edwin Basyar, Dwi Ngestiningsih

Jurnal Penyakit Dalam Indonesia

Introduction. COVID-19 may cause impaired oxygenation that affects the recovery process, making oxygen saturation an important parameter in clinical monitoring. Age, disease severity, and comorbidities are suspected to influence the duration of oxygen saturation recovery. This study aimed to analyze differences in oxygen saturation recovery time based on age, disease severity, and comorbidity status in hospitalized COVID-19 patients.

Methods. This was an observational analytic study with a retrospective cohort design using a survival analysis approach. The study was conducted at Diponegoro National Hospital (RSND) Semarang from October to November 2021 using medical records of hospitalized COVID-19 patients from …

The Link Between Atrial Fibrillation And Gastroesophageal Reflux Disease - Pathophysiology, Emerging Evidence And Treatment Options, Wojciech Jakub Bajda, Jakub Juszczyk, Negin Fani, Dongwoo Kang, Jerzy Gregorczyk

Journal of the Hong Kong College of Cardiology

Gastroesophageal reflux disease (GERD) and atrial fibrillation (AF) are common conditions that significantly impact gastrointestinal and cardiovascular health. Emerging evidence suggests a bidirectional relationship between these conditions, mainly driven by inflammation and vagal nerve stimulation. Shared risk factors include obesity, obstructive sleep apnea, and hiatal hernias. This review explores the underlying pathophysiological mechanisms that may link GERD and AF, focusing on the roles of autonomic dysregulation, systemic inflammation, and mechanical interactions that may cause symptoms for both diseases. Lifestyle modifications including weight management, along with pharmacological treatments like proton pump inhibitors, have shown promise in managing the symptoms of both …

Approach To Management Of Grown-Up Cyanotic Congenital Heart Disease, Pak-Cheong Chow

Journal of the Hong Kong College of Cardiology

Despite of advances in cardiac and surgical care, some children with complex congenital heart disease remain cyanotic in adulthood. The grown-up cyanotic congenital heart diseases are heterogeneous due to their underlying cardiac anatomy and physiology. Other than cardiovascular problems, they patients are also faced with multi-system complications in the long run. Therefore, these patients need nuanced and comprehensive assessment, regular follow-up monitoring, and multi-facet management. In this article, the types and classification of cyanotic congenital heart diseases, the multi-system complications and the approach to assessment and treatment will be presented.

On Links Between A Theorem Of Schoenberg, Rohlin Decompositions Of Measures, The Bochner-Minlos Theorem And The Fock Space, Daniel Alpay, Paula Cerejeiras, Palle Jorgensen, Uwe Kaehler

Mathematics, Physics, and Computer Science Faculty Articles and Research

The main goal of this paper is to gain new results in stochastics by drawing on, and combining, different areas that are normally not considered to be related. Thus, in this paper we extend the previous class of Gaussian-like functions ML which will allow for future generalized stochastic processes in infinite dimensional analysis. We show that an approach similar to the one by the classical Bochner-Minlos theorem for the white-noise case can be achieved by using Gaussian-like functions belonging to a large family -the ML_r classes (0 < r ≤∞). We show how Schoenberg’s theorem for positive definite functions on a Hilbert space allows to go beyond the classical setting of Bochner-Milnos theorem. Furthermore, we show that the application of the Rohlin’s disintegration theorem allows for a decomposition of the associated probability measures , see Theorems 3.2 and 4.3. We end this paper with several important examples of functions in these classes ML_r and provide some interesting counterexamples, e.g. Theorem 7.4, to get a …

Quantum Indiscernibility And Perspectivalism, Emily Adlam

Mathematics, Physics, and Computer Science Faculty Articles and Research

It has often been suggested that similar quantum particles may be a counterexample to the principle of the Identity of Indiscernibles. In this article, I discuss the status of indiscernibility in a perspectival approach to quantum mechanics. I argue that adopting an internal physical perspective can have the effect of making entities discernible even if they are not discernible relative to external reference frames, and thus perspectivalism offers a new way to understand the physical meaning of weak discernibility. I discuss whether this approach is circular, and I consider whether the reference frames involved are physically meaningful. I conclude that …

Quantum Superpositions Of Conscious States In A Minimal Integrated Information Model, Kelvin J. Mcqueen, Ian T. Durham, Markus P. Müller

Philosophy Faculty Articles and Research

Could there be quantum superpositions of conscious states, as suggested by the Wigner’s friend thought experiment? Mathematical theories of consciousness, notably integrated information theory (IIT), make this question more precise by associating physical systems with both quantitative amounts of consciousness and structural characterizations of conscious states. Motivated by a recent proposal that ties wave-function collapse to integrated information, we construct a simple quantum circuit that would, on that proposal, place a minimal system—a feedback dyad—into a superposition of states that differ in their associated conscious states. This “Schrödinger’s dyad” provides a controlled setting for evaluating a central desideratum of consciousness-based …

Non-Hermitian Sl (3, C) Three-Mode Couplers, B. M. Rodríguez-Lara, Hamed Ghaemi-Dizicheh, Shahram Dehdashti, Andreas Hanke, Ahmed Touhami, J. Nötzel

Physics & Astronomy Faculty Publications

Photonic systems with exceptional points, where eigenvalues and corresponding eigenstates coalesce, have attracted interest due to their topological features and enhanced sensitivity to external perturbations. Non-Hermitian mode-coupling matrices provide a tractable analytic framework to model gain, loss, and chirality across optical, electronic, and mechanical platforms without the complexity of full open-system dynamics. Exceptional points define their spectral topology, and enable applications in mode control, amplification, and sensing. Yet N -mode couplers, the minimal setting for N th-order exceptional points, are often studied in specific designs that overlook their algebraic structure. We introduce a general sl(N , C) framework for arbitrary …

Development And Service Performance Of Active Anti-Icing Pavement Materials For Energy Efficiency Optimization Of Low-Enthalpy Geothermal Deicing Systems, Junming Mo, Jiading Jiang, Ke Wu, Lei Qu, Wenbin Wei, Jinfu Zhu

Faculty Research, Scholarly, and Creative Activity

To address high thermal loads and energy costs in Geothermal Road Snow-Melting Systems (GRSSs) within cold regions, this study optimizes energy efficiency through material-level intervention. We developed a composite anti-icing modifier synergistic with low enthalpy geothermal systems, comprising slow-release agents, anti-corrosive components, reinforcing materials, and active chloride salts. By regulating the thermodynamic boundary of the pavement, the freezing point is suppressed to −21 °C. This eliminates the requirement for positive pavement temperatures, significantly reducing the design thermal power. Chloride ion release patterns were analyzed via dissolution and 20-day soaking tests to evaluate structural durability. Results show optimal performance at a …

High-Power Dual-Channel Chamber For High-Frequency Magnetic Neuromodulation, Xiaoyang Tian, Hui Wang, Boshuo Wang, Jinshui Zhang, Dong Yan, Jeannette Ingabire, Samantha Coffler, Guillaume Duret, Quoc-Khanh Pham, Gang Bao, Junzhe Wang, Ashok Veeraraghavan, Jacob T Robinson, Stefan M Goetz, Angel V Peterchev

Faculty, Staff and Students Publications

Objective. Several novel methods, including magnetogenetics and magnetoelectric stimulation, use high frequency alternating magnetic fields to precisely manipulate neural activity. To quantify the behavioral effects of such interventions in a freely moving mouse, we developed a dual-channel magnetic chamber, specifically designed for rate-sensitive magnetothermal-genetic stimulation, and adaptable for other uses of alternating magnetic fields.

Approach. Through an optimized coil design, the system allows independent control of two spatially orthogonal uniform magnetic fields delivered at different frequencies within a 10 × 10 × 6 cm3 chamber suitable for mouse studies. The two channels have nominal frequencies of 50 and 550 kHz …

Proactive Resilience Enhancement Through Optimal Allocation Of Fast Voltage Support Devices Under Critical Multi-Bus Contingencies, Sunday O. Adetona, Habib A. Adetona, Adeola O. Balogun, Frank N. Okafor, Samson A. Alayande

Engineering and Technology Journal

In this paper, a two-stage optimization scheme of proactive resilience of the transmission system to severe multi-bus contingencies is developed. A hybrid PSO-GSA-Quantum metaheuristic is used to find the 4-bus reactive fault clusters in the IEEE 118-bus system in stage 1. The cluster identified with the performance index (PI) of 1.8875 × 10³ has the 91.6th percentile of 10000 random Monte Carlo samples and 1.78 times worse than the worst N-1 contingency. The results of the Monte Carlo analysis indicate that the PI distribution is essentially bimodal (skewness = 0.5188, kurtosis = 3.2394) and the distribution is concentrated around …

Experimental And Ai-Based Simulation Study Of Photovoltaic Thermal Collector With Cooling Techniques Integrated Into A Hybrid Solar Chimney, Ayat Ahmed, Khalid F. Sultan

Engineering and Technology Journal

As a result of increasing demands of efficient renewable energy systems as well as the hazards posed by high operating temperatures of the photovoltaic modules, advanced cooling and heat recovery solutions are now necessary. The paper involves an experimental and AI-filed research on a solar collector (photovoltaic/thermal, PV/T) with a combination of a hybrid solar chimney (HSC) to improve the electrical and thermal efficiency in hot climatic conditions, under hot weather conditions. The system was examined using three cooling configurations: air cooling, water cooling, and combined bi-fluid cooling. Energy balance equations were developed to evaluate electrical and thermal efficiencies, and …

Evaluation Of Optimized Mechanical Properties Of Gum-Arabic/Powdered Pentaclethra Macrophylla Pod Brake Pad Composite., I. C. C. Iloabachie, A. M. Nwankwo

Engineering and Technology Journal

The mechanical properties of brake pad composites produced from powdered Pentaclethra macrophylla pod reinforced with gum Arabic resin were investigated. The pods were cleaned, air-dried, oven-dried at 110 °C to constant weight, pulverized, and sieved, after which a portion was carbonized at 950 °C. Composite formulation was carried out using a pre-impregnation technique, with the reinforcement content varied from 10 to 50 wt% at 10 wt% intervals, while other constituents were maintained constant. The composites were molded in a hot platen press using a 50 mm × 50 mm × 8 mm mold at 180 °C, a pressure of 15 …

``Comparative Study On Photo-Thermal Conversion Characteristics Of Selective Coatings Under Nir-Dominated Artificial Irradiation'', Saleh K. Jabur, Ahmed A. Al-Tabbakh, Layth Al-Gebory

Engineering and Technology Journal

This study reports an investigation of the photo-thermal conversion performance of nickel-reinforced composite coatings prepared from commercially available black paints under controlled artificial NIR-Dominated halogen irradiation source. Two coating matrices were employed: the first is a modified silicone resin with black manganese ferrite and chromite black, the second is acrylic resin containing carbon black (PBK7) coating. Both coatings were combined with nickel microparticles. The coatings were characterized using scanning electron microscope, electron energy dispersive spectrometer, and UV-Vis-NIR spectroscopy measurement to investigate their structural, morphological, compositional and optical properties. The Photo-thermal conversion performance was evaluated under irradiation from a tungsten-halogen lamp …

Effects Of Types And Amount Of Organic Matter On The Engineering Properties Of Soil, Afaq H. Malleh, Mohammed Y. Fattah, Hussein H. Karim

Engineering and Technology Journal

Organic soils exhibit highly variable geotechnical behavior due to differences in the type, content, and decomposition state of organic matter, which are often inadequately distinguished in engineering practice. This study investigates the influence of organic matter origin on soil behavior through a comparative analysis of sapric organic soils and sewage sludge soil tested under identical one-dimensional consolidation conditions. Laboratory tests included physical characterization, standard consolidation tests under vertical stresses of 200 kPa and 800 kPa, post-consolidation organic matter measurements, and microstructural analyses using SEM–EDS and XRD. The results show that increasing sapric organic matter content from 23% to 35% led …

A Systematic Review Of Mathematical Interpretations Of The Weton Marriage Tradition Within Islamic Cultural Contexts, Ratna Damayanti, Surya Sari Faradiba

Jurnal Pendidikan Sains

This study is grounded in the limited integration of mathematics, culture, and religion within academic discussions of local traditions, particularly the weton marriage calculation practice. It aims to explore the mathematical concepts embedded in weton calculations and to analyse these practices from an Islamic law perspective within an interdisciplinary framework. The study employs a Systematic Literature Review (SLR) method following the six-stage PRISMA 2020 protocol, including the formulation of research questions, development of a search strategy, application of inclusion and exclusion criteria, study selection, quality assessment, and thematic synthesis. Data were collected from Google Scholar and Garuda using the keywords …

Preferences For Mathematics And Science Education Majors Among Senior High School Students In Bataan, Zydrick L. Avelino

Jurnal Pendidikan Sains

This study examines the factors influencing Senior High School students’ preferences for Bachelor of Secondary Education (BSEd) majors in Bagac and Morong, Bataan, with particular focus on the low interest in Mathematics and Science specializations despite increasing demand for STEM educators. Using a descriptive quantitative design, data were collected from 369 students through a structured survey and analyzed using frequency and percentage distributions. The results reveal a strong preference for non-STEM majors, with Social Studies (42.12%) and English (35.04%) dominating, while Science (15.43%) and Mathematics (7.395%) received significantly lower interest. Personal interest emerged as the primary determinant (58.8%), followed by …

The Secret Of Smerdyakov, Abigail M. Munzar

Global Tides

This paper analyzes the mysterious character of Pavel Smerdyakov from Dostoevsky’s novel, The Brothers Karamazov, by examining his loveless upbringing, motives for murdering Fyodor Karamazov, and his final conversations with Ivan Karamazov, to argue that Smerdyakov committed suicide out of guilt from his crime. Smerdyakov may have had a potential conversion to Christianity which would have triggered an identity crisis in which he was tormented between accepting Christ’s love and hanging on to his lifelong hatred. Thus, he would have committed suicide out of remorse from his sin like the biblical Judas and an inability to choose between conversion or …