Digital Commons Network^™

When Words Fail: Why Ai-Driven Context Beats Word Error Rate For Safety-Critical Air Traffic Control, Muhammad Maaz

Theses and Dissertations

Accurate speech-to-text transcription is critical for Air Traffic Control (ATC) to en- sure safety and operational efficiency. However, existing Automatic Speech Recognition (ASR) systems struggle with domain-specific phraseology, high noise levels, and real-time constraints. This work explores domain adaptation strategies of OpenAI’s Whisper ASR model, applying Transfer Learning and Low-Rank Adaptation (LoRA) on ATC benchmark and a Federal Aviation Administration (FAA) corpus. Experimental results show that fine- tuning significantly reduces Word Error Rate (WER) from 55.2% to 6.8%, yet WER alone fails to capture safety-critical transcription errors. To address WER’s limitations, we introduce the Contextual Error Rate (CER), a novel …

Tell Me How You Really Feel: A Case Study On Restorative Practices, Marissa Santiago

Theses and Dissertations

Restorative Practices are gaining popularity as the primary form of handling student discipline. In the past, school districts have heavily relied on exclusionary practices, such as suspension and expulsions. The purpose of this qualitative case study is to explore and understand how educators make sense of restorative practices in an urban intermediate school serving students in fourth to sixth grade. The guiding framework for this study was Sensemaking Theory. Sensemaking theory helps researchers to understand how participants make sense of their experiences. Ten teachers, from an urban intermediate school, participated in this study through semi-guided interviews, observations, and document collection. …

Sex-Dependent Modulation Of Behavioral Allocation Via Ventral Tegmental Area-Nucleus Accumbens Shell Circuitry, Kristen A. Mclaurin, Jessica M. Illenberger, Hailong Li, Rosemarie M. Booze, Charles F. Mactutus

Faculty Publications

Diagnostic criteria for substance use disorder, cocaine type (i.e., cocaine use disorder), outlined in the 5th edition of the Diagnostic and Statistical Manual of Mental Disorders, imply that the disorder arises, at least in part, from the maladaptive allocation of behavior to drug use. To date, however, the neural circuits involved in the allocation of behavior have not been systematically evaluated. Herein, a chemogenetics approach (i.e., designer receptors exclusively activated by designer drugs (DREADDs)) was utilized in combination with a concurrent choice self-administration experimental paradigm to evaluate the role of the mesolimbic neurocircuit in the allocation of behavior. Pharmacological activation …

Machine Learning Applications For Berth Allocation Optimization In Major Red Sea Ports: A Multi-Port Analysis, Mohammed H. Alshareef

Journal of King Abdulaziz University: Marine Science

Efficient berth allocation remains a critical challenge in Red Sea port operations, particularly given the diverse operational capabilities across the region's ports. The research utilized historical operational data from 147,892 berth allocation instances across these ports spanning 2019--2023. A deep learning model was developed using four dense layers with ReLU activation functions, incorporating vessel characteristics, weather patterns, and operational constraints. The model's performance was validated through comparison with traditional allocation methods using real-time port operation data. Port selection criteria included geographical distribution along the Red Sea, varying levels of technological adoption, and willingness to share operational data for research purposes. …

Hector Tipan Lopez V. Attorney General United States Of America

2025 Decisions

Agency

The Implications Of Religiosity And Complementary Determinants On The Repurchase Intention Of Halal-Certified Food In Indonesia 2024, Jihan Luthfiyyah Siregar, Nurdin Sobari

ASEAN Marketing Journal

Manuscript Type: Research Article.

Research Aims: This study applies the Theory of Planned Behavior (TPB) framework to examine the impact of religiosity on repurchase intentions for halal-certified food, incorporating factors such as subjective norms, awareness, trust, halal knowledge, halal certification, and perceived behavioral control.

Design/Methodology/Approach: Data were collected from 472 respondents through a purposive sampling survey in Indonesia, and analyzed using Structural Equation Modeling (SEM) with SmartPLS v.3.2.9.

Research Findings: A total of 20 hypotheses were tested. The findings reveal that religiosity influences the mediators—halal knowledge, halal certification, subjective norms, and perceived behavioral control—which, in turn, shape attitudes and stimulate …

Innovations In Shipbuilding: A Comprehensive Review Of Material Selection, Corrosion Management, And Environmental Considerations, Oumaima Bouanani, Sara Sandabad, Moulay El Houssine Ech-Chhibat

Journal of King Abdulaziz University: Marine Science

The shipbuilding industry, a cornerstone of global maritime operations, oversees vessel lifecycles from design through commissioning. This article delves into the industry's complex role in facilitating global trade, driving technological advancements, and prioritizing sustainability and safety. The harsh marine environment-marked by salinity, temperature extremes, and mechanical stresses-necessitates resilient and durable vessel structures. Consequently, the careful selection of materials is crucial for ensuring vessel longevity and performance under stringent safety and environmental standards. Recent breakthroughs in shipbuilding materials, including high-strength steel, composites, and lightweight alloys, have transformed the industry. Innovative solutions, such as shape memory alloys and eco-friendly composites, are designed …

Identifying And Analysing Coastal Landforms In Ar Rāyis, Saudi Arabia: Insights From Sentinel Data And Field Studies, Omar A. Alharbi

Journal of King Abdulaziz University: Marine Science

This study examines the coastal geomorphology of the Ar Rāyis coastal zone on the eastern Red Sea coastal plain, along with the processes underpinning this geomorphology. Coastal areas feature various landforms, including beaches, intertidal flats, khawrs (lagoons), sand spits, sand dunes, sabkhas (salt marshes), coral reefs, wadis, raised coral reef terraces, and alluvial terraces. These landform features suggest rapid alterations in coastal conditions. Furthermore, the analysis of Sentinel-2B data via digital processing reveals a range of natural land covers, with field investigations confirming the results. The supervised classification methods assisted in distinguishing between regions of deep and shallow water, while …

Survival Analysis Of Brain Tumor Patients: One Year After Surgery, Tika Dwi Tama, Nada Syifa, Erni Astutik

Preventia: The Indonesian Journal of Public Health

Surgery is the most performed procedure to treat brain tumors. However, information about the survival of brain tumor patients after undergoing surgery is still limited in Indonesia. This study aimed to determine 1 year survival in brain tumor patients after undergoing surgical procedures and factors associated with patient survival. A retrospective cohort study was conducted in March until April 2023 with subjects of 46 brain tumor patients who were registered at the Gatot Soebroto Army Hospital and underwent surgical procedures in 2018 until 2022. Data on respondent characteristics (gender and age), clinical conditions (tumor location, stage, and tumor classification), date …

Anthropometry Measurement Video Improve Knowledge Of Cadres In Nganjuk City: A Single Group Pre-Post Test Design Study, Farah Paramita, Mika Vernicia Humairo, Septa Katmawanti, Nohan Arum Romadlona

Preventia: The Indonesian Journal of Public Health

High quality anthropometric measurements are important for nutritional assessment in children. In Indonesia, anthropometric measurement of children performed by caders in child center called posyandu as a child growth monitoring. However error measurements are found, especially on length or height measurement of children affecting presision and accuracy of data. This will lead to misinterpretation of child nutrition status. Education and training for cadres using media are important to improve their knowledge and skill related to anthropometric measurements. This study aimed to assess the effect of anthropometry measurement training using videos on Cadre’s knowledge. This study used one group pre-post test …

Using Digital Storytelling As A Tool To Enhance Vocabulary For Young Learners, Suresh Banoth, Udaya Muthyala

Journal of English and Applied Linguistics

Digital storytelling (DST) represents an innovative pedagogical approach aimed at enhancing vocabulary acquisition among young learners. This study investigates how effective Digital Storytelling (DST) is in enhancing English vocabulary skills among 32 sixth-grade students at Government Model School in Hyderabad, Telangana State, India. By integrating visual, auditory, and textual elements, DST facilitates a deeper understanding of vocabulary within context, which supports better retention and accessibility. The study employs the VSS (Vocabulary Self-Collection Strategy) serves as an effective tool to promote student involvement and responsibility in vocabulary learning by encouraging learners to actively discover and gather unfamiliar words, The use of …

Crisis Communication On Facebook: Interaction Between Public Utility Companies And Their Consumers, Virna S. Villanueva, Xena Angela D. Baloloy

Journal of English and Applied Linguistics

This study analyzes the Facebook communication between public utility companies and their consumers in the Philippines during crises. Specifically, it investigates the public utility’s common issues or problems and communication strategies and their consumers’ tone and language. Using a mixed-methods approach, the qualitative content analysis examines language use, tone, and engagement strategies, while the quantitative analysis identifies the frequency of concerns, communication styles, and consumer reactions. The study uses the framework of Bies’s (2013) bad news management process, specifically the delivery phase. The dataset includes 23 Facebook posts, selected from an initial corpus of 41 posts, made by two public …

Do They Already Know? Level Of Gender Language Sensitivity Among Education Students, Bethany P. Villanueva, Azil Jane Guingguing, Bryan Abondo, Diane Deuna, Adelyne Abrea

Journal of English and Applied Linguistics

This study, conducted within a Philippine educational setting, assessed gender language sensitivity among education students. Completing two tests, the gender-neutral pronoun usage test and the gender-sensitive language test, 255 randomly selected first- and second-year students participated. Additional qualitative data was gathered through a focus group discussion. Statistical analysis using analysis of variance and Z-tests revealed no significant differences in the use of gender-neutral pronouns based on year level, program, gender identity, and preferred pronouns. However, a significant difference was observed in using gender-sensitive language based on year level and preferred pronouns. Overall, the respondents demonstrated a beginning level of proficiency …

Estimation And Analysis Of Modernized Gps C1x Differential Hardware Delay, Mohamed Elsayed Elsobeiey

Journal of King Abdulaziz University: Engineering Sciences

The aim of this paper is to estimate and analyze the modernized signal C1X and the legacy signal C2W satellite differential hardware delay (DCB_{P1 - CX}^s). To this end, GPS data from a network consisting of 35 globally distributed IGS stations is used to estimate satellites C1C-C2W differential hardware delay (DCB_{P1 - C1}^s) using three methods. The first method is based on the direct estimation from Rinex data, the second method is based on Precise Point Positioning technique, and the third method is based on satellite clock analysis. The estimated values using …

Optimisation Of Astatic Controllers In Automatic Control Systems, Isamiddin Xakimovich Siddikov, Dilnoza Maxamadjanovna Umurzakova

Chemical Technology, Control and Management

This article examines the influence of various factors on the efficiency of optimizing station controllers in automatic control systems. The main focus is on minimizing static errors and improving the reliability of controllers. Optimization methods for PID and PI²D controllers are discussed, including the use of modern approaches such as genetic algorithms. The necessity of compromise solutions to achieve high-quality system responses to various impacts is investigated. It was also suggested that there is a need for an integrated approach to setting up controllers in order to increase their reliability and flexibility in conditions of dynamically changing processes. …

The Importance Of The Analog-To-Digital Converter In The Measurement System, Aliev Ravshan, Anvar Djalilov

Chemical Technology, Control and Management

At the moment, many scientific researches are being conducted all over the world on the economical use of water and energy resources. Most of the scientific research works are aimed at improving measurement techniques and technologies, that is, increasing their accuracy. With this in mind, a high-precision analog-to-digital converter due to its unique metrological and technical characteristics was studied in this research paper. As a result of the study, it became clear that the use of a small-sized, high-precision sigma-delta analog-to-digital converter in modern measuring technology has a positive effect on its accurate and efficient operation.

Var Analysis: Association Between Non-Performing Loan, Housing Price, Economic Indicators, And Mortgage, Yulifar Amin Gultom, Masruri Muchtar, Pardomuan Robinson Sihombing

Jurnal Akuntansi dan Keuangan Indonesia

Background: The economic crisis from 2008 to 2009 was due to the collapse of the housing price bubble, which increased the default rate or non-performing loans of mortgages. Much research on non-performing loans compared to property price and economic indicators has been done in other countries, but not in Indonesia. This research is modified to suit the housing market in Indonesia, aiming to investigate causality relationships between non-performing loans, residential property price index, gross domestic product, mortgages, and credit interest rates. It also analyzes the impulse response function and variance decomposition of each variable, focusing on non-performing loans to show …

The Enhanced Booklet Technique And Its Impact On Learning Outcomes In The Motor Education Course, Magdy Mahmoud Fahim Mohamed, Amira Mahmoud Taha Abdelrahim

Modern Sport

This study aims to examine the effect of enhanced Booklet Technique on the learning outcomes of the motor education course. The researchers adopted a quasi-experimental methodology employing a two-group post-test design, with one experimental and one control group. The sample, randomly selected, consisted of 120 first-year students from the Faculty of Physical Education at the University of Sadat City during the academic year 2023/2024, representing 16.74% of the total population. The participants were divided equally into an experimental group (n = 60) and a control group (n = 60). An additional exploratory sample of 60 students (8.37% of the total …

The Impact Of Educational Exercises Using Assistive Tools On The Technical Performance Of The Shot Put Event For Female Students, Aseel Jalil Kata’A, Diana Ghanem Yahya, Hadi Ahmed Khudhur, Hindwalid Kalaf Abdulhassan

Modern Sport

The importance of this research lies in using assistive tools that help female students learn the technical phases of the shot-put event in a simplified manner. The goal is to reduce the effort and time required for teaching the event, which reflects positively on improving technical performance and minimizing common mistakes. Through practical observation, the researchers noted that female students face difficulties acquiring the correct technical performance of the shot put despite traditional teaching methods. The research problem centers around the limited use of assistive tools, which leads to weak motor coordination and a lack of accuracy in performance. This …

Comprehensive Review Of Sensible Thermal Storage Systems For Cooking Applications, Anna K. Shariishoy

Tanzania Journal of Engineering and Technology (TJET)

This paper reviewed the sensible thermal storage systems specifically designed for cooking applications. The review focuses on the characteristics of storage materials, their practical applications, and the overall performance of the systems. The review consolidated an array of experimental and numerical research published across various sources such as journals, conferences, books, online resources, and professional reports. A systematic review is used to reach the conclusion of this paper. Significant findings from this study include the wide range of storage capacities attained from small-scale systems that can store ~1–5 MJ of energy for a single meal to bigger systems that can …

Satisfaction As A Mediator Between Perceptions Of Service Quality And Loyalty Related To The Indonesian Social Security Mobile App, Tengku Ezni Balqiah, Roswita Nilakurnia, Rifelly Dewi Astuti, Permata Wulandari, Arief Dahyan Supriadi, Tarimantan Sanberto Saragih, Eldest Augustin, Fadly Eka Pradana, Fergie S. Mahaganti, An Nisa Pramasanti, Rendra Hymne Fajar Hutabarat

ASEAN Marketing Journal

Manuscript type: Research Article

Research Aims: to determine whether the perceived service quality factors could promote user Jamsostek Mobile (JMO) satisfy and continue to use JMO

Design/methodology/approach: Data was gathered through an online survey of JMO users to analyse three hypotheses using Structural Equation Modelling (SEM) method with SmartPLS

Research Findings: the result demonstrated that all hypotheses are supported that indicate there are three dimension of JMO attributes could develop Perceived Service Quality. Moreover, this variable could enhance loyalty through satisfaction.

Theoretical Contribution/Originality: Using the Stimulus–Organism–Response (S-O-R) Model, this study develop framework to strengthen the …

Quantum Analysis Of Protein–Ligand Binding By Integrating Structural Resolution, Sequence Homology, And Ligand Properties, Don Roosan, Samira Samrose, Rubayat Khan, Saif Nirzhor, Brian Provencher

Computer and Data Science Faculty Publications

Predicting protein–ligand binding affinity is a fundamental challenge in computational biology and drug discovery, complicated by diverse factors including protein sequence variability, ligand chemical diversity, and structural resolution. Here, we present an integrative study that combines classical machine learning and quantum-enhanced modeling to investigate how crystal structure resolution, sequence similarity, and ligand properties jointly influence binding affinity. Using a curated “refined” dataset from PDBbind and an expanded general dataset, we first conduct correlation and regression analyses to quantify the relationships among binding affinity, ligand descriptors (e.g., molecular weight, logP), and protein structural metrics (resolution, R-factor). We observe moderate positive correlations …

Waterpod: Evaluating Learner Engagement And Conceptual Understanding Through Gamified Virtual Reality, Leeza Eimeria Duller

Theses and Dissertations

The water and wastewater industry faces a growing workforce crisis due to high retirement rates, limited public awareness, and underrepresentation of technical talent. Traditional outreach methods have struggled to engage students or convey the complexity of water systems. This study evaluates WaterPOD, an interactive virtual reality (VR) simulation designed to introduce users to wastewater treatment processes and careers through immersive learning. Grounded in Social Cognitive Career Theory (SCCT), Cognitive Load Theory (CLT), and Constructivist Learning Theory (ConLT), the study examined how VR influences conceptual understanding and career perceptions. A mixed-methods study with 138 college students measured SCCT constructs, CLT- and …

Compact Space-Folded Multi-Resonator Duct Silencer With Broadband Noise Reduction And Minimal Flow Disturbance, Joshua Lloyd

Theses and Dissertations

Control and reduction of unwanted noise is a significant concern in many residential, commercial, and industrial fields. Specifically, ducted noise control is of increasing importance due to the complex challenges of ventilation requirements imposed on the system. This research presents a compact, space-folded silencer which achieves broadband attenuation of noise in ducted applications. Making use of axial arrays of side- loaded resonators, this structure allows for unobstructed fluid-flow through its center, resulting in a static fluid pressure drop across the device of only 14.5 Pa. In addition, due to the silencer’s configurable nature, the geometry can be tuned to meet …

Mitigation Of Voltage Disturbances In Industrial Power Distribution Networks Using Dynamic Voltage Restorers, Aviti T. Mushi

Tanzania Journal of Engineering and Technology (TJET)

Most electrical and electronic equipment in industries require high-quality power to function efficiently. Nonetheless, voltage sags and swells are pressing concerns and prone to directly impact the economy of industrial customers. One such customer embattled with these problems is Mbeya Cement Company Limited (MCC) located in Mbeya, Tanzania. These issues mainly are caused by upstream faults and switching operations. One way to address these is by utilizing the voltage injection method, which employs a power device known as a dynamic voltage restorer (DVR). In this paper, the voltage sags and swells of balanced three-phase, unbalanced double-line and single-line to ground …

Towards Future Sustainable Infrastructure: The Role Of Technical Audit In Tanzania’S Public Works, George C. Haule

Tanzania Journal of Engineering and Technology (TJET)

This study aimed to investigate the vital role and impact of technical audits in promoting sustainable infrastructure development in Tanzania. The role and effects of technical audits in long-term infrastructure development were studied using a mixed-methods approach with both quantitative and qualitative parts. Data were collected through analysis of technical audit documentation, a semi-structured questionnaire, and stakeholder interviews. The study revealed the various dimensions of infrastructure investment projects, including initiation and planning, design, procurement of contractors and consultants, contract management, environment, health, and safety. The technical audit findings reported weaknesses or non-performance issues in infrastructure planning at the national level …

Wet Gas Metering Performance Using Conventional Flow Measurement Devices, Vitali Mwinyi

Tanzania Journal of Engineering and Technology (TJET)

The demand for and production of natural wet gas from wells has significantly risen in recent years. Although natural gas liquids hold substantial value in the oil and gas market, their presence in wet gas adversely affects gas metering, leading to overreading during measurement. A comprehensive study has been undertaken to formulate and enhance correlations for rectifying overreading in wet gas metering. Nevertheless, most current correlations are designed for horizontal configurations of traditional meters. Mitigating this constraint is crucial to consider the impact of gravity on pressure loss in vertically oriented systems. This study seeks to evaluate the efficacy of …

Fuzzy-Ahp Based Decision Support System For The Selection Of Optimal Maintenance Strategy For Meter Gauge Railway Infrastructure: A Review, Hamisi J. Maulid

Tanzania Journal of Engineering and Technology (TJET)

There are many uncertainties and complexities associated with maintaining Meter Gauge Railway (MGR) infrastructure, which calls for a methodical approach to decision-making. The development and application of a fuzzy-AHP-based decision support system (DSS) to select the optimal maintenance strategy for the MGR are presented in this study. The review covers research from 2013 to 2023 and focusses on the use of Multi-Criteria Decision Making (MCDM) and Fuzzy Analytic Hierarchy Process (Fuzzy-AHP) techniques in railway infrastructure maintenance. To manage the inherent uncertainties and subjective judgements involved in maintenance decision-making, the Fuzzy-AHP methodology combines fuzzy logic with the Analytic Hierarchy Process (AHP). …

The Impacts Of Renewable Energy Sources: A Review On Grid Inertia And Frequency Regulation, Sospeter Gabriel

Tanzania Journal of Engineering and Technology (TJET)

The power system is gradually transitioning into low inertia due to integrating substantial intermittency quantity of converter-based renewable energy sources, such as wind and photovoltaic power, into the current power grid network. This integration presents significant inertia and frequency control challenges to the network as a result of a decrease in the percentage of synchronous generators. Moreover, faster frequency deviations are posed by the mismatch between the supply and demand during contingencies, which creates difficulties in preserving the frequency stability of the power system. This research explores the impacts of renewable energy sources (RESs) on grid inertia and frequency management …

Scoring System For Screening Fitness To Work For Offshore And Onshore Remote Area Worker, Kasyunnil Kamal

Occupational and Environmental Medicine Journal of Indonesia

Background: About 10-15% of medical examinations of workers at upstream oil and gas companies are not conducted properly. In some cases, workers die at worksites. Many doctors carrying out the assessment lack the competency to assess occupational risks. In this study, we developed a scoring system for ‘fitness for work’ assessment, which can be used by trained doctors.

Methods: Diagnostic testing was done with comparing the results of the determination screening fitness for work using a scoring system with the determine fitness for work results by Occupational Medicine Specialist as a gold standard in the same group. The entire 607 …