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Investigating Subscriber Churn And Retention Strategies On Disney+., Maryam El Goss Jan 2025

Investigating Subscriber Churn And Retention Strategies On Disney+., Maryam El Goss

Business ETD Collections

This study examines the challenges facing Disney+, a subscription-based streaming service owned by The Walt Disney Company, in sustaining long-term growth following its rapid global expansion since 2019. While early success was driven by access to major franchises such as Disney, Marvel, Pixar, Star Wars, and National Geographic, the platform is increasingly affected by high subscriber churn. Factors including price sensitivity, content saturation, and intensified competition from platforms such as Netflix, Max, and Amazon Prime Video have contributed to declining user retention. The phenomenon of “subscription cycling,” where users subscribe temporarily to consume specific content, further destabilises revenue streams and …


Leveraging Ai-Driven Salesforce Crm To Improve Customer Retention In The Irish Insurance Sector., Mohamed El Bakouri Jan 2025

Leveraging Ai-Driven Salesforce Crm To Improve Customer Retention In The Irish Insurance Sector., Mohamed El Bakouri

Business ETD Collections

This study explores the growing importance of customer satisfaction within the Irish insurance sector, a highly competitive and evolving market. Traditionally, insurers relied on personal relationships and competitive pricing to retain customers; however, modern consumers increasingly demand fast, personalised services tailored to their individual needs. In response, artificial intelligence (AI), particularly when integrated with customer relationship management (CRM) systems, has emerged as a transformative solution. Tools such as AI-powered CRM platforms enable insurers to utilise predictive analytics, generate customer insights, and enhance service delivery, thereby improving customer retention. Despite these benefits, the adoption of such technologies presents significant challenges for …


Retention Strategies Of Disney+ In Saturated Streaming Markets: A Case Study Of Ireland., Suelen Aleixo Matos Jan 2025

Retention Strategies Of Disney+ In Saturated Streaming Markets: A Case Study Of Ireland., Suelen Aleixo Matos

Business ETD Collections

The global streaming video-on-demand (SVOD) industry has undergone rapid transformation in recent years, with Disney+ emerging as a major competitor following its launch in 2019. Despite achieving exceptionally fast subscriber growth in its early stages, the platform now faces increasing retention challenges in mature and saturated markets such as Ireland, where competition and subscription fatigue have become key constraints on further expansion. Evidence from the Irish market indicates high levels of subscription penetration alongside stabilising or declining growth rates, with increasing patterns of subscription cycling and service cancellation driven by cost sensitivity, underuse, and the availability of multiple competing platforms. …


The Experience Of The “Too Good To Go” Platform In Ireland And Its Implementation Potential In Mongolia., Jargal Erdenebaatar Jan 2025

The Experience Of The “Too Good To Go” Platform In Ireland And Its Implementation Potential In Mongolia., Jargal Erdenebaatar

Business ETD Collections

Food waste presents a considerable challenge to global environmental, economic, and social sustainability. This study investigates the viability of replicating the “Too Good To Go” (TGTG) platform in Mongolia, informed by the experiences of the TGTG platform in Ireland. Employing a mixed-methods approach, the research includes a secondary data analysis from Ireland, an online survey administered to 162 consumers in Ulaanbaatar, and semi-structured interviews with three entrepreneurs.

The findings suggest that the success of TGTG in Ireland can be attributed to several key factors: elevated consumer awareness, a supportive environment reinforced by government policies, and accessible technology. In contrast, the …


Ryanair And The Strategic Challenge Of Innovation., Jessyca Souza Damaso Jan 2025

Ryanair And The Strategic Challenge Of Innovation., Jessyca Souza Damaso

Business ETD Collections

This study examines the strategic innovation challenges facing Ryanair, a Dublin-based low-cost airline that has long dominated the European aviation market through aggressive pricing and operational efficiency. While this cost-leadership model has historically driven success, evolving market conditions—including rising digital expectations and increasing environmental regulations—now require a broader innovation approach that extends beyond operational efficiency.

The research identifies a key strategic limitation in Ryanair’s current innovation efforts, which remain primarily internally focused on cost reduction and operational improvements rather than customer experience or sustainability. Evidence suggests that passengers increasingly perceive the airline’s digital tools as outdated and lacking personalisation, while …


Booking.Com: What Drives Retention And How To Improve It., Otavio Lopes Dos Santos Rodrigues Jan 2025

Booking.Com: What Drives Retention And How To Improve It., Otavio Lopes Dos Santos Rodrigues

Business ETD Collections

Online travel agencies (OTAs) have significantly reshaped the global tourism and hospitality industry by offering convenience, transparency, and extensive choice to consumers. Among these, Booking.com has emerged as a dominant market leader, operating on a global scale and serving millions of users. However, increasing competition and low switching costs present ongoing challenges in maintaining long-term customer loyalty. This study examines the evolving dynamics of trust, fairness, and conflict resolution in influencing user retention, alongside traditional functional benefits such as usability and price competitiveness. Using Booking.com as a case study, the research adopts a mixed-method approach, combining insights from a property …


Optimising Student Recruitment And Brand Awareness At Icot College Through Culturally Targeted Advertising And Social Media Strategies., Uchral Ganbold Jan 2025

Optimising Student Recruitment And Brand Awareness At Icot College Through Culturally Targeted Advertising And Social Media Strategies., Uchral Ganbold

Business ETD Collections

In today’s competitive higher education landscape, institutions increasingly rely on digital marketing strategies to attract and retain international students. ICOT College, an English Language Training provider in Ireland, faces challenges in recruiting and engaging a diverse international student base due to limited culturally tailored advertising and underutilisation of social media platforms. The global education sector has become more competitive following COVID-19, with students adopting more selective and research-driven approaches when choosing institutions. However, ICOT’s current marketing approach remains largely generic, lacking localisation, targeted messaging, and interactive digital engagement. This reduces its effectiveness in connecting with key international markets and weakens …


“Move Fast And Break Things”: Innovation, Stability, And Trust In The Growth Of Revolut., Belen Blanco Mendoza Jan 2025

“Move Fast And Break Things”: Innovation, Stability, And Trust In The Growth Of Revolut., Belen Blanco Mendoza

Business ETD Collections

In this research project, I chose to examine the strategies used in the growth of the fintech Revolut, namely the ’move-fast-and-break-things’ strategy that was employed at the beginning of the company. With this in mind, I decided on two Research Questions, “With the benefit of hindsight, and a focus on problems caused by low security and poor customer support, is Revolut’s ‘move fast and break things’ philosophy a good strategy for the business?” and “Will Revolut’s new fraud prevention strategies, and advances in AI help recover the lost goodwill caused by their earlier ineffective strategies?”, which guided me …


Algorithms And Intimacy: Millennials' Social Meanings From Their Experience Using Tinder., Yuka Gega Jan 2025

Algorithms And Intimacy: Millennials' Social Meanings From Their Experience Using Tinder., Yuka Gega

Business ETD Collections

In recent years, the way people form relationships has undergone a profound transformation, shifting from traditional, community-based interactions to global, technology-mediated connections. Dating apps have played a central role in this shift, using algorithms and limited user data, such as photos and profiles, to match individuals. While these platforms offer convenience and expanded opportunities to meet others, they may also prioritise selection and appearance over the development of meaningful connections. The widespread adoption of smartphones has accelerated the global reach of these services, making them highly accessible and widely used, particularly among millennials. However, algorithm-driven matching introduces new challenges, including …


Strategic Digital Transformation Of Internal Audit: The Microsoft Case Study., Maria De Jesus Marin Marin Jan 2025

Strategic Digital Transformation Of Internal Audit: The Microsoft Case Study., Maria De Jesus Marin Marin

Business ETD Collections

Internal audit functions are under increasing pressure to evolve amid rapid digital innovation and rising expectations for risk responsiveness and strategic insight. While tools such as data analytics, automation, and AI offer clear benefits, many audit teams still face inefficiencies and underutilised technology. This study explores how Microsoft’s internal audit function, a case within a digitally advanced yet operationally complex environment, can enhance efficiency, risk detection, and internal controls through digital tools, agile methods, and process redesign. Drawing on qualitative research, including interviews and surveys with internal audit, IT and compliance professionals, the study bridges academic theory with practical insight. …


Countries As Laboratories: Reflections On Sierra Leone’S Amended Anti-Human Trafficking Law, Andrea L. Dennis Jan 2025

Countries As Laboratories: Reflections On Sierra Leone’S Amended Anti-Human Trafficking Law, Andrea L. Dennis

Scholarly Works

Sierra Leone’s improved anti-trafficking laws align with global norms, but enforcement remains weak due to socio-economic realities and Western deterrence mismatches, limiting effective prosecution despite recent legislative reforms.


Relational Mentoring In Troubled Times, Fatima Suarez, Veronica Montes, Emir Estrada, Pierrette Hondagneu-Sotelo Jan 2025

Relational Mentoring In Troubled Times, Fatima Suarez, Veronica Montes, Emir Estrada, Pierrette Hondagneu-Sotelo

Sociology Faculty Research and Scholarship

No abstract provided.


Legal Pathways To Professionalizing The Procurement Workforce For Good Governance To State Contracts: A Comparative Study, Karem Sayed Aboelazm, Fady Tawakol, Emad Ibrahim, Hanadi Sharif Jan 2025

Legal Pathways To Professionalizing The Procurement Workforce For Good Governance To State Contracts: A Comparative Study, Karem Sayed Aboelazm, Fady Tawakol, Emad Ibrahim, Hanadi Sharif

All Works

This study addressed several concepts in the study’s conceptual framework, which were based on profession, professionalization, and professionalism in public procurement. It also discussed the importance of professionalizing public procurement functions and its impact on public procurement performance (Angaw, 2020). The study also aimed to analyze the most prominent global practices in raising the efficiency and capabilities of public procurement workers to reach complete professionalism in public procurement. The paper attempted to investigate the possibility of professionalism in public procurement and its effects on the good governance of state contracts. The paper relied on two basic research approaches, namely the …


Llm-Driven Apt Detection For 6g Wireless Networks: A Systematic Review And Taxonomy, Muhammed Golec, Yaser Khamayseh, Suhib Bani Melhem, Abdulmalik Alwarafy Jan 2025

Llm-Driven Apt Detection For 6g Wireless Networks: A Systematic Review And Taxonomy, Muhammed Golec, Yaser Khamayseh, Suhib Bani Melhem, Abdulmalik Alwarafy

All Works

Sixth Generation (6G) wireless networks, which are expected to be deployed in the 2030s, have already created great excitement in academia and the private sector with their extremely high communication speed and low latency rates. However, despite the ultra-low latency, high throughput, and AI-assisted orchestration capabilities they promise, they are vulnerable to stealthy and long-term Advanced Persistent Threats (APTs). Large Language Models (LLMs) stand out as an ideal candidate to fill this gap with their high success in semantic reasoning and threat intelligence. This paper presents the first systematic review and taxonomy for LLM-assisted APT detection in 6G networks. It …


Streamlining Digital Elevation Model Construction From Historical Aerial Photographs: The Impact Of Reference Elevation Data On Spatial Accuracy, Xin Hong, Christopher H. Roosevelt Jan 2025

Streamlining Digital Elevation Model Construction From Historical Aerial Photographs: The Impact Of Reference Elevation Data On Spatial Accuracy, Xin Hong, Christopher H. Roosevelt

All Works

This study proposes a streamlined workflow for producing historical digital elevation models (hDEMs) from scanned 1950s aerial photographs using structure-from-motion and multi-view-stereo (SfM-MVS) techniques along with co-registration methods. We also conducted a sensitivity analysis to assess the impact of DEM references with varying spatial resolutions on the SfM-MVS process and co-registration accuracy. The DEM references included a 30 m SRTM DEM (low resolution), a 12 m TanDEM-X DEM (medium resolution), and a 5 m DEM provided by the General Directorate of Mapping of the Ministry of National Defense, Republic of T & uuml;rkiye (high resolution). Results indicate that higher resolution …


Science Education In The Age Of Misinformation, Elissar Gerges Jan 2025

Science Education In The Age Of Misinformation, Elissar Gerges

All Works

No abstract provided.


Founder Worship, Effective Altruism, And Corporate Governance, Jennifer S. Fan, Xuan-Thao Nguyen Jan 2025

Founder Worship, Effective Altruism, And Corporate Governance, Jennifer S. Fan, Xuan-Thao Nguyen

Law Faculty Research and Publications

Founders are the heart of any startup. Oftentimes, they are given considerable latitude in managing a company, particularly if they are hailed as a visionary founder in a pathbreaking new industry. Additionally, it is assumed that underpinning their actions is the desire to do good. Unfortunately, sometimes this leads to what we term founder worship where the promise of the founder and the innovation may lead to perverse outcomes because too much control is ceded to the founder and there is a lack (or sometimes complete absence of) corporate governance. When unlimited control is coupled with "do gooderism," which in …


Ai Innovations In Rppg Systems For Driver Monitoring: Comprehensive Systematic Review And Future Prospects, Soha G. Ahmed, Katrien Verbert, Nazar Zaki, Ashraf Khalil, Hamad Aljassmi, Fady Alnajjar Jan 2025

Ai Innovations In Rppg Systems For Driver Monitoring: Comprehensive Systematic Review And Future Prospects, Soha G. Ahmed, Katrien Verbert, Nazar Zaki, Ashraf Khalil, Hamad Aljassmi, Fady Alnajjar

All Works

Advanced technologies, notably camera-based systems using remote photoplethysmography (rPPG), are increasingly used in automotive safety to non-invasively monitor driver well-being and fatigue by measuring physiological metrics like heart and respiration rates. This review examines recent advancements in machine learning algorithms and signal processing for rPPG in driver monitoring. A literature search up to April 2, 2024, across major databases, identified 344 studies; 29 were analyzed in depth, focusing on: 1) rPPG signal extraction and heart rate estimation, where deep learning improved accuracy; 2) fatigue detection, showing benefits of multimodal data fusion; 3) mental state monitoring, with machine learning classifying cognitive …


University Students' Understanding And Utilization Of Food Labels: A Cross-Sectional Study, Sharifa Alblooshi, Linda Smail, Asya Aldayyani, Falak Zeb, Alia Ibrahim Jan 2025

University Students' Understanding And Utilization Of Food Labels: A Cross-Sectional Study, Sharifa Alblooshi, Linda Smail, Asya Aldayyani, Falak Zeb, Alia Ibrahim

All Works

Introduction: This study is aimed at investigating Zayed University students' knowledge, attitudes, and practices (KAPs) regarding food labels and at identifying key predictors of food label use through logistic regression analysis.Methods: This quantitative cross-sectional study used a validated questionnaire to elicit data on KAPs regarding the use of nutritional information and food labels. This study was conducted from January to May 2023 in the UAE among students from Zayed University. A total of 1153 students aged 18 and above from Zayed University participated in the study. They were recruited using snowball sampling. Descriptive statistics were obtained using the Statistical Package …


Designing Ai To Foster Acceptance: Do Freedom To Choose And Social Proof Impact Ai Attitudes Among British And Arab Populations?, Sameha Alshakhsi, Mohamed Basel Almourad, Areej Babkir, Dena Al-Thani, Ala Yankouskaya, Christian Montag, Raian Ali Jan 2025

Designing Ai To Foster Acceptance: Do Freedom To Choose And Social Proof Impact Ai Attitudes Among British And Arab Populations?, Sameha Alshakhsi, Mohamed Basel Almourad, Areej Babkir, Dena Al-Thani, Ala Yankouskaya, Christian Montag, Raian Ali

All Works

This study examines the impact of two key AI modalities–freedom of choice (FoC) and social proof (SP)–on public attitudes toward AI, focusing on cultural differences between UK and Arab participants. FoC refers to the option of selecting a non-AI, possibly human, alternative, while SP means knowing that others have used AI without issues. Four scenarios were designed, combining the presence or absence of these modalities. The context was a customer service chatbot for a telecommunications company, familiar to all participants. A total of 639 participants (316 British and 323 Arab) were introduced to the modalities and then the scenarios in …


Certain Knowledge Of Administrative Decisions Issued By Artificial Intelligence Systems In The Public Sector: A Comparative Analysis, Nayel Musa Alomran, Odai Mohammad Alheilat Jan 2025

Certain Knowledge Of Administrative Decisions Issued By Artificial Intelligence Systems In The Public Sector: A Comparative Analysis, Nayel Musa Alomran, Odai Mohammad Alheilat

All Works

This paper aims to elucidate the matter of certain knowledge pertaining to administrative decisions, those issued by artificial intelligence. It also clarifies the position of the administrative judiciary with regard to the adoption of this presumption and through a comparative analysis of administrative judicial applications in Jor-dan, Egypt, and Morocco. The text addresses the most significant evidence for achieving certain knowledge of an administrative decision – and thereby initiating the appeal period against the appellant. The question at hand is whether the administrative judiciary applies the traditional theory of certain knowledge to its counterpart issued by artificial intelligence systems, especially …


Performance Based Scheduling In Distributed Mixed Criticality Systems, Amjad Ali, Saud Wasly, Asad Masood Khattak, Ihsan Ali, Shahid Iqbal, Bashir Hayat Jan 2025

Performance Based Scheduling In Distributed Mixed Criticality Systems, Amjad Ali, Saud Wasly, Asad Masood Khattak, Ihsan Ali, Shahid Iqbal, Bashir Hayat

All Works

With a focus on computationally intensive, distributed, and parallel workloads, scheduling in mixed-criticality distributed systems presents significant challenges due to shared memory and resources, as well as the diverse demands of tasks. The system’s efficiency is heavily dependent on the overall scheduling duration (make span), while individual task deadlines impose strict timing constraints. When the tasks need to simultaneously access the shared memory, then these tasks interfere the execution of one another. For managing the scheduling of interfering tasks in distributed mixed-criticality systems, a novel Interference-Aware Partitioning Fixed Priority (IAP-FP) approach is proposed, which effectively handles task partitioning among cores …


Enhancing Teachers’ Design Thinking Mindsets Through Reflective Practice: Cultivating Innovation In An Upskilling Steam Training Program, Areej Elsayary Jan 2025

Enhancing Teachers’ Design Thinking Mindsets Through Reflective Practice: Cultivating Innovation In An Upskilling Steam Training Program, Areej Elsayary

All Works

Promoting innovation in education through enhanced design thinking (DT) mindsets among teachers is a central goal. This study examines the use of reflective practice within an upskilling STEAM training program to achieve this enhancement. The upskilling training initiative examined in this research encompasses a ten-week instructional session characterized by a hybrid learning methodology under the guidance of an instructor. An explanatory mixed method design is employed, starting with a quantitative method (teachers’ survey) followed by a qualitative method (focus group discussion). The participants were in-service K-12 teachers (n = 55) from charity schools across Northern Emirates in the United Arab …


Investigation Of Symptom-Specific Functional Connectivity Patterns In Parkinson’S Disease, Ani Kicik, Ali Bayram, Emel Erdogdu, Elif Kurt, Dilek Betul Saridede, Sevim Cengiz, Basar Bilgic, Hasmet A. Hanagasi, Esin Ozturk-Isik, Hakan Gurvit, Erdem Tuzun, Tamer Demiralp Jan 2025

Investigation Of Symptom-Specific Functional Connectivity Patterns In Parkinson’S Disease, Ani Kicik, Ali Bayram, Emel Erdogdu, Elif Kurt, Dilek Betul Saridede, Sevim Cengiz, Basar Bilgic, Hasmet A. Hanagasi, Esin Ozturk-Isik, Hakan Gurvit, Erdem Tuzun, Tamer Demiralp

All Works

Parkinson’s disease (PD) is a complex neurodegenerative disease, characterized by pronounced heterogeneity in symptoms. This study investigates the functional connectivity (FC) patterns associated with distinct symptom clusters, aiming to elucidate the heterogeneity in PD and uncover the neural mechanisms underlying its motor and cognitive symptoms. Resting-state functional MRI (rs-fMRI) data from 55 non-demented PD patients and 24 healthy controls (HC) were used to perform seed-to-seed FC analyses. A clustering algorithm was applied to the cognitive and motor scores of all PD patients to generate relatively homogeneous symptomatic subgroups. PD patients exhibited a general decrease in FC within a network comprising …


Heavy Metal Pollution In Arid Urban Environments: Anthropogenic And Geogenic Insights From Road Dust In The United Arab Emirates, Yousef Nazzal, Alina Bărbulescu, Manish Sharma, Fares Howari, Imen Ben Salem, Rania Dghaim, Pramod Kumbhar, Cijo M. Xavier, Suhail Alghafli, Ahmed A. Al-Taani, Mutaz Mohammad, Azzah Nasser Salem Nayem Alkaabi, Saif Nazzal, Cristian Ștefan Dumitriu Jan 2025

Heavy Metal Pollution In Arid Urban Environments: Anthropogenic And Geogenic Insights From Road Dust In The United Arab Emirates, Yousef Nazzal, Alina Bărbulescu, Manish Sharma, Fares Howari, Imen Ben Salem, Rania Dghaim, Pramod Kumbhar, Cijo M. Xavier, Suhail Alghafli, Ahmed A. Al-Taani, Mutaz Mohammad, Azzah Nasser Salem Nayem Alkaabi, Saif Nazzal, Cristian Ștefan Dumitriu

All Works

Dust is a significant environmental concern due to its pervasive nature and potential health risks, particularly from heavy metals. This is exacerbated in urban areas, where dust can act as a reservoir for pollutants, posing risks to human health through various exposure pathways. This study aims to explore and compare the distribution of heavy metals in road dust from two distinct cities in the UAE: Dubai, a commercial hub, and Khor Fakkan, a coastal town with industrial activities. Road dust samples were collected from 29 locations in both cities, including areas with varying traffic density, residential settings, and industrial zones. …


Association Of Obesity With Musculoskeletal Health And Functional Mobility In Females—A Systematic Review, Dhanya Menoth Mohan, Fatme Al Anouti, Nupur Kohli, Kinda Khalaf Jan 2025

Association Of Obesity With Musculoskeletal Health And Functional Mobility In Females—A Systematic Review, Dhanya Menoth Mohan, Fatme Al Anouti, Nupur Kohli, Kinda Khalaf

All Works

Obesity is a prevalent global health challenge with a significant yet unclear impact on musculoskeletal health, particularly among females. This systematic review aimed to unravel the association between obesity and musculoskeletal health, as well as functional mobility in women. A comprehensive literature search was conducted across PubMed, Scopus, Web of Science, and the Cochrane Library for articles published between January 2001 and December 2023. Studies were selected based on their examination of the relationship between overweight or obesity and musculoskeletal health (including bones, joints, and soft tissues) and/or functional mobility in adult females (age ≥19) within the general population. Studies …


In The Clear: Timber Harvest Informs Elk Summer Nutrition And Resource Selection In A Densely Forested Landscape, Trevor C. Weeks Jan 2025

In The Clear: Timber Harvest Informs Elk Summer Nutrition And Resource Selection In A Densely Forested Landscape, Trevor C. Weeks

Graduate Student Theses, Dissertations, & Professional Papers

As wildlife and habitats face unprecedented challenges in the form of landscape conversion, shifting disturbance regimes, and climate change, it becomes increasingly important for land and wildlife managers to find avenues for collaboration as they seek to maintain habitat to support robust wildlife populations. Timber harvest may provide one such avenue for collaboration. It has been shown to increase the quality and quantity of ungulate nutritional resources by reverting stands to early successional stages. Additionally, timber harvest may allow for a more precise application of such effects, as managers choose where and how to harvest timber. However, the exact effects …


Expression Of Dementia Biomarkers In Appalachian And Non-Appalachian Elvo Patients During Thrombectomy, Neha Anil, Christopher J. Mclouth, Hunter S. Hazelwood, Elise Dahlke, Jacqueline A. Frank, Nathan Millson, Mais Al-Kawaz, Jordan P. Harp, Will Cranford, Shivani Pahwa, David Dornbos, Justin F. Fraser, Keith R. Pennypacker Jan 2025

Expression Of Dementia Biomarkers In Appalachian And Non-Appalachian Elvo Patients During Thrombectomy, Neha Anil, Christopher J. Mclouth, Hunter S. Hazelwood, Elise Dahlke, Jacqueline A. Frank, Nathan Millson, Mais Al-Kawaz, Jordan P. Harp, Will Cranford, Shivani Pahwa, David Dornbos, Justin F. Fraser, Keith R. Pennypacker

Biostatistics Faculty Publications

Background/Context: Vascular Cognitive Impairment and Dementia (VCID) affects 25-30% of stroke patients and includes cognitive impairments caused by vascular injury, such as post-stroke dementia. Rehabilitation has the potential to improve the quality of life for patients at risk of developing dementia. However, there is currently no reliable method to identify those at risk of dementia after a stroke. Several biomarkers, including ADRD (Alzheimer’s disease and related dementias) biomarkers (Ab, tau, NfL, and GFAP) and angiogenic factors (VEGF, Flt-1, Tie-2, PIGF, and FGF) have been associated with the development of dementia. Populations in Appalachia experience a higher incidence of stroke and …


Effects Of Dietary L-Tryptophan On Growth Performance, Feed Utilization, And Protein Metabolism In Nile Tilapia (Oreochromis Niloticus), Israt Mishu, Lindee Mason, Ahmed Mustafa Jan 2025

Effects Of Dietary L-Tryptophan On Growth Performance, Feed Utilization, And Protein Metabolism In Nile Tilapia (Oreochromis Niloticus), Israt Mishu, Lindee Mason, Ahmed Mustafa

Mansoura Veterinary Medical Journal

This research examines the impact of dietary L-tryptophan supplementation on growth performance, feed efficiency, and protein metabolism in Nile tilapia (Oreochromis niloticus) under stress and non-stress settings. This experiment evaluated essential growth metrics, encompassing weight gain, length gain, specific growth rate, feed conversion ratio, and protein energy retention. Nile tilapia were categorized into four experimental groups: a control group on a commercial diet, a control group supplemented with L-tryptophan (0.33%/kg feed), a stress-induced group receiving cortisol (0.02%/kg feed), and a stress-induced group receiving both cortisol (0.02%/kg feed) and L-tryptophan supplementation (0.33%/kg feed). The findings indicated that Ltryptophan supplementation significantly enhanced …


Data-Driven Melt Pool Monitoring And Defect Prediction In Lpbf Of Ti-6al-4v Alloy, Marshima Mohd Rosli, Ali Rachini, Musaria Karim Mahmood Jan 2025

Data-Driven Melt Pool Monitoring And Defect Prediction In Lpbf Of Ti-6al-4v Alloy, Marshima Mohd Rosli, Ali Rachini, Musaria Karim Mahmood

Babylonian Journal of Mechanical Engineering

Real-time process monitoring is essential for achieving consistent part quality in Laser Powder Bed Fusion (LPBF), yet robust and practical defect prediction frameworks remain underdeveloped. This study presents a machine learning-based approach for predicting unstable melt pool conditions, leveraging an open dataset of melt pool variability measurements from Ti-6Al-4V builds on an EOS M290 system. The framework utilizes fundamental process parameters—laser velocity, power, scan orientation, and track location—combined with statistical melt pool geometry features to train a Random Forest classifier. The model achieved an accuracy of 99.79% in distinguishing between stable and unstable melt pool states, with balanced sensitivity and …