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The Effects Of Sleep Restriction And Time Of Day On Food-Specific Impulsivity, Approach-Avoidance Bias And Delay Discounting, Naomi Kakoschke, David L. Dickinson, Sean P. A. Drummond Jun 2025

The Effects Of Sleep Restriction And Time Of Day On Food-Specific Impulsivity, Approach-Avoidance Bias And Delay Discounting, Naomi Kakoschke, David L. Dickinson, Sean P. A. Drummond

ESI Publications

Background:

Insufficient sleep and circadian timing are both linked with obesity, primarily via unhealthy food choice, yet the cognitive mechanisms underpinning such relationships remain unclear.

Methods:

Across two studies, we implemented an ecologically valid within-subjects at-home protocol. Study 1 (n = 118) involved a within-subjects examination of how sleep restriction (SR) versus well-rested (WR) sleep levels affect choices in a food-based approach-avoidance task (AAT) and go–no/go (GNG) task, a food liking task, a food-choice task, a psychomotor vigilance task (PVT), and a monetary choice task. Study 2 (n = 119) involved examining choices in the same set of …


Linking Static And Dynamic Structures And Properties Of Materials With Computational And Mathematical Models, (Enoch) Sin Hang Ho Jun 2025

Linking Static And Dynamic Structures And Properties Of Materials With Computational And Mathematical Models, (Enoch) Sin Hang Ho

Theses and Dissertations

Terahertz (THz) spectroscopy is an effective technique to study and manipulate the structural dynamics of materials, due to its frequency range being very similar to the vibrational frequencies of collective atom motions in a host of materials. High-field and broadband THz radiation can be generated via optical rectification (OR) in nonlinear optical (NLO) crystals. The efficiency of OR response in an NLO crystal is determined by many factors, including molecular hyperpolarizability (β), 2nd order electric susceptibility (χ(2)), crystal structure, primary growth orientation, refractive index, absorption and phase matching condition. In this dissertation, I will focus on using computation methods and …


1616 President St. Assoc. Llc V. Edwards Jun 2025

1616 President St. Assoc. Llc V. Edwards

All Decisions

A landlord sought to reargue a prior order granting a tenant a 100% rent abatement for rent-impairing violations under MDL § 302-a, arguing the abatement period should not extend beyond the rent sought in the unamended petition. The court denied the motion, distinguishing a prior Appellate Term decision (1616 President Street Associates, LLC v. Ann Marie Ackie, 84 Misc 3d 128(A) [App Term, 2d Dept])concerning rent deposit requirements from the court's authority to grant a full abatement on the merits. The court affirmed that MDL § 302-a permits a 100% abatement for the entire period a rent-impairing violation remains uncorrected …


Effect Of Cage Eccentricity On Moment Capacity Of Drilled Shafts, Jason Schaefer Steinbach Jun 2025

Effect Of Cage Eccentricity On Moment Capacity Of Drilled Shafts, Jason Schaefer Steinbach

USF Tampa Graduate Theses and Dissertations

During the construction of drilled shafts, reinforcement cages can be inadvertently placed eccentrically. Current codes, such as ACI 318 and AASHTO LRFD Bridge Specifications, assume there is little impact from such movements within the drilled shaft or that cage centering provisions are sufficiently robust. This thesis will explore the impact that reinforcement cage eccentricity has on the bending capacity of drilled shafts and propose new strength reduction and resistance factors for tension-controlled failure in drilled shafts.

A total of 208 drilled shafts across eleven counties within the state of Florida were tested using thermal integrity profiling to identify the worst …


Multi-Ancestry Genome-Wide Association Analyses Incorporating Snp-By-Psychosocial Interactions Identify Novel Loci For Serum Lipids, Amy R Bentley, Michael R Brown, Solomon K Musani, Karen L Schwander, Thomas W Winkler, Mario Sims, Tuomas O Kilpeläinen, Hugues Aschard, Traci M Bartz, Lawrence F Bielak, Jin-Fang Chai, Kumaraswamy Naidu Chitrala, Nora Franceschini, Mariaelisa Graff, Xiuqing Guo, Fernando P Hartwig, Andrea R V R Horimoto, Elise Lim, Yongmei Liu, Alisa K Manning, Ilja M Nolte, Raymond Noordam, Melissa A Richard, Albert V Smith, Yun Ju Sung, Dina Vojinovic, Rujia Wang, Yujie Wang, Mary F Feitosa, Sarah E Harris, Leo-Pekka Lyytikäinen, Giorgio Pistis, Rainer Rauramaa, Peter J Van Der Most, Erin Ware, Stefan Weiss, Wanqing Wen, Lisa R Yanek, Dan E Arking, Donna K Arnett, Christie Ballantyne, Eric Boerwinkle, Yii-Der Ida Chen, Martha L Daviglus, Lisa De Las Fuentes, Paul S De Vries, Joseph A C Delaney, Amanda M Fretts, Lynette Ekunwe, Jessica D Faul, Linda C Gallo, Sami Heikkinen, Georg Homuth, M Arfan Ikram, Carmen R Isasi, Jost Bruno Jonas, Liisa Keltikangas-Järvinen, Pirjo Komulainen, Aldi T Kraja, Jose E Krieger, Lenore Launer, Lifelines Cohort Study, Jianjun Liu, Kurt Lohman, Annemarie I Luik, Ani W Manichaikul, Pedro Marques-Vidal, Yuri Milaneschi, Stanford E Mwasongwe, Jeffrey R O'Connell, Kenneth Rice, Stephen S Rich, Pamela J Schreiner, Lars Schwettmann, James M Shikany, Xiao-Ou Shu, Jennifer A Smith, Harold Snieder, Nona Sotoodehnia, E Shyong Tai, Kent D Taylor, Lesley Tinker, Michael Y Tsai, André G Uitterlinden, Cornelia M Van Duijn, Diana Van Heemst, Melanie Waldenberger, Robert B Wallace, Hwee-Lin Wee, David R Weir, Wen-Bin Wei, Ko Willems Van Dijk, Gregory Wilson, Jie Yao, Kristin L Young, Xiaoyu Zhang, Wei Zhao, Xiaofeng Zhu, Alan B Zonderman, Ian J Deary, Christian Gieger, Hans Jörgen Grabe, Timo A Lakka, Terho Lehtimäki, Albertine J Oldehinkel, Martin Preisig, Ya-Xing Wang, Wei Zheng, Michele K Evans, Michael Province, James Gauderman, Vilmundur Gudnason, Catharina A Hartman, Bernardo L Horta, Sharon L R Kardia, Charles Kooperberg, Ching-Ti Liu, Dennis O Mook-Kanamori, Brenda Wjh Penninx, Alexandre C Pereira, Patricia A Peyser, Bruce M Psaty, Jerome I Rotter, Xueling Sim, Kari E North, Dabeeru C Rao, Laura Bierut, Clint L Miller, Alanna C Morrison, Charles N Rotimi, Myriam Fornage, Ervin R Fox Jun 2025

Multi-Ancestry Genome-Wide Association Analyses Incorporating Snp-By-Psychosocial Interactions Identify Novel Loci For Serum Lipids, Amy R Bentley, Michael R Brown, Solomon K Musani, Karen L Schwander, Thomas W Winkler, Mario Sims, Tuomas O Kilpeläinen, Hugues Aschard, Traci M Bartz, Lawrence F Bielak, Jin-Fang Chai, Kumaraswamy Naidu Chitrala, Nora Franceschini, Mariaelisa Graff, Xiuqing Guo, Fernando P Hartwig, Andrea R V R Horimoto, Elise Lim, Yongmei Liu, Alisa K Manning, Ilja M Nolte, Raymond Noordam, Melissa A Richard, Albert V Smith, Yun Ju Sung, Dina Vojinovic, Rujia Wang, Yujie Wang, Mary F Feitosa, Sarah E Harris, Leo-Pekka Lyytikäinen, Giorgio Pistis, Rainer Rauramaa, Peter J Van Der Most, Erin Ware, Stefan Weiss, Wanqing Wen, Lisa R Yanek, Dan E Arking, Donna K Arnett, Christie Ballantyne, Eric Boerwinkle, Yii-Der Ida Chen, Martha L Daviglus, Lisa De Las Fuentes, Paul S De Vries, Joseph A C Delaney, Amanda M Fretts, Lynette Ekunwe, Jessica D Faul, Linda C Gallo, Sami Heikkinen, Georg Homuth, M Arfan Ikram, Carmen R Isasi, Jost Bruno Jonas, Liisa Keltikangas-Järvinen, Pirjo Komulainen, Aldi T Kraja, Jose E Krieger, Lenore Launer, Lifelines Cohort Study, Jianjun Liu, Kurt Lohman, Annemarie I Luik, Ani W Manichaikul, Pedro Marques-Vidal, Yuri Milaneschi, Stanford E Mwasongwe, Jeffrey R O'Connell, Kenneth Rice, Stephen S Rich, Pamela J Schreiner, Lars Schwettmann, James M Shikany, Xiao-Ou Shu, Jennifer A Smith, Harold Snieder, Nona Sotoodehnia, E Shyong Tai, Kent D Taylor, Lesley Tinker, Michael Y Tsai, André G Uitterlinden, Cornelia M Van Duijn, Diana Van Heemst, Melanie Waldenberger, Robert B Wallace, Hwee-Lin Wee, David R Weir, Wen-Bin Wei, Ko Willems Van Dijk, Gregory Wilson, Jie Yao, Kristin L Young, Xiaoyu Zhang, Wei Zhao, Xiaofeng Zhu, Alan B Zonderman, Ian J Deary, Christian Gieger, Hans Jörgen Grabe, Timo A Lakka, Terho Lehtimäki, Albertine J Oldehinkel, Martin Preisig, Ya-Xing Wang, Wei Zheng, Michele K Evans, Michael Province, James Gauderman, Vilmundur Gudnason, Catharina A Hartman, Bernardo L Horta, Sharon L R Kardia, Charles Kooperberg, Ching-Ti Liu, Dennis O Mook-Kanamori, Brenda Wjh Penninx, Alexandre C Pereira, Patricia A Peyser, Bruce M Psaty, Jerome I Rotter, Xueling Sim, Kari E North, Dabeeru C Rao, Laura Bierut, Clint L Miller, Alanna C Morrison, Charles N Rotimi, Myriam Fornage, Ervin R Fox

Faculty, Staff and Student Publications

Serum lipid levels, which are influenced by both genetic and environmental factors, are key determinants of cardiometabolic health and are influenced by both genetic and environmental factors. Improving our understanding of their underlying biological mechanisms can have important public health and therapeutic implications. Although psychosocial factors, including depression, anxiety, and perceived social support, are associated with serum lipid levels, it is unknown if they modify the effect of genetic loci that influence lipids. We conducted a genome-wide gene-by-psychosocial factor interaction (G×Psy) study in up to 133,157 individuals to evaluate if G×Psy influences serum lipid levels. We conducted a two-stage meta-analysis …


Utilization Of Bixin-Loaded Polycaprolactone Nanoparticles To Ameliorate E-Cigarette-Induced Damage To Human Bronchial Epithelial Cells, Sophia R. Claymore Jun 2025

Utilization Of Bixin-Loaded Polycaprolactone Nanoparticles To Ameliorate E-Cigarette-Induced Damage To Human Bronchial Epithelial Cells, Sophia R. Claymore

USF Tampa Graduate Theses and Dissertations

Electronic cigarettes (e-cigs) have increased in popularity and usage over the last few decades. E-cigs are generally composed of a liquid containing nicotine flavoring chemicals, a battery, a vaporization chamber, and a coil that heats the liquid upon inhalation of the mouthpiece. E-cigs were initially introduced as a healthy alternative to cigarette smoking. However, recent research has demonstrated that e-cigs elicit comparable cytotoxic and dangerous effects to conventional cigarettes. Bixin has been introduced in recent research as a candidate for therapeutic applications due to its innate anticancer, antioxidative, and anti-inflammatory characteristics. Nanoparticles (NPs) have emerged over the past few decades …


Monoclonal Antibodies Targeting The Fimh Adhesin Protect Against Uropathogenic E. Coli Uti, Edward D B Lopatto, Jesús M Santiago-Borges, Denise A Sanick, Sameer Kumar Malladi, Philippe N Azimzadeh, Morgan W Timm, Isabella F Fox, Aaron J Schmitz, Jackson S Turner, Shaza M Sayed Ahmed, Lillian Ortinau, Nathaniel C Gualberto, Jerome S Pinkner, Karen W Dodson, Ali H Ellebedy, Andrew L Kau, Scott J Hultgren Jun 2025

Monoclonal Antibodies Targeting The Fimh Adhesin Protect Against Uropathogenic E. Coli Uti, Edward D B Lopatto, Jesús M Santiago-Borges, Denise A Sanick, Sameer Kumar Malladi, Philippe N Azimzadeh, Morgan W Timm, Isabella F Fox, Aaron J Schmitz, Jackson S Turner, Shaza M Sayed Ahmed, Lillian Ortinau, Nathaniel C Gualberto, Jerome S Pinkner, Karen W Dodson, Ali H Ellebedy, Andrew L Kau, Scott J Hultgren

2020-Current year OA Pubs

As antimicrobial resistance increases, urinary tract infections (UTIs) are expected to pose an increased burden in morbidity and expense on the health care system, increasing the need for alternative antibiotic-sparing treatments. Most UTIs are caused by uropathogenic


Deep Learning-Based 3d Point Cloud Semantic Segmentation For Mechanical, Electrical, And Plumbing Systems In Open Ceiling Building Structure, Jinwoong Lee, Jinwu Xiao, Dan Koo, Kyubyung Kang Jun 2025

Deep Learning-Based 3d Point Cloud Semantic Segmentation For Mechanical, Electrical, And Plumbing Systems In Open Ceiling Building Structure, Jinwoong Lee, Jinwu Xiao, Dan Koo, Kyubyung Kang

CIB Conferences

Deep learning-based semantic segmentation of point clouds is a vital tool for efficiently generating accurate as-built Building Information Models (BIM) by automating the identification and classification of building components. While traditional deep learning models have primarily focused on segmenting visible structural elements such as columns, walls, doors, windows, and furniture, the growing popularity of open ceiling designs presents unique challenges. Open ceiling environments expose Mechanical, Electrical, and Plumbing (MEP) components, including pipes, ducts, and electrical conduits, which are often characterized by overlapping geometries, visual similarities, and intricate spatial arrangements. These complexities raise questions about whether existing deep learning-based semantic segmentation …


Location-Based Work Sampling: Application And Evaluation For Workflow Issue Identification, Tobias Fiirgaard, Malik Namage, Cristina Toca Pérez Jun 2025

Location-Based Work Sampling: Application And Evaluation For Workflow Issue Identification, Tobias Fiirgaard, Malik Namage, Cristina Toca Pérez

CIB Conferences

This study explores the application of Location-Based Work Sampling (LBWS) to enhance construction site management, focusing on workflow issue identification. For that, a Case Study was conducted on a new construction project in Herning, Denmark. The authors applied the LBWS tool to identify the distribution of working time of seven trades. The Case Study presented a structured five-step methodology: (1) understanding, (2) adaptation, (3) application, (4) analysis, and (5) evaluation. During the adoption step, the “Ajour system” app was selected as the optimal software based on the technique “Chosen By Advantages”. At the application step, the authors registered 2,800 random …


Improving User Experience Through Bedroom Lighting Services For Older People Living In Personal Houses, Mei-Yung Leung, Yueran Li Jun 2025

Improving User Experience Through Bedroom Lighting Services For Older People Living In Personal Houses, Mei-Yung Leung, Yueran Li

CIB Conferences

The global ageing tendency underscores the necessity for indoor building services to accommodate the needs of older adults. Bedroom lighting services encompass both natural and electric lighting as well as supporting facilities such as light control, shading devices, and anti-reflection finishes. It facilitates visual interactions between occupants and their living environment. The user experience of older people reflects the extent to which current bedroom lighting services address their needs, which significantly influences their well-being in later years. Key aspects valued by older users can be divided into the sufficiency of task lighting, evenness during movement, navigation in the room, convenience, …


A New Approach To Sustainable Healthcare Facility Management: The Case Of Türkiye, Sinan Terzioglu, Sarel Lavy, Orhan Koç Jun 2025

A New Approach To Sustainable Healthcare Facility Management: The Case Of Türkiye, Sinan Terzioglu, Sarel Lavy, Orhan Koç

CIB Conferences

Types of healthcare facilities (HF) range from simple medical clinics to large integrated hospitals. Today, HF are expected to fulfill their service responsibilities in an uninterrupted and continuous manner in an environment of constantly developing medical treatment services, support services, maintenance and repair activities, and changing laws, codes, requirements, and standards related to the health and safety of patients, staff, and visitors. A major change in the provision of healthcare services was initiated in Türkiye in 2003, where healthcare delivery models in other developed countries were taken as examples. As a result of these changes, new integrated HF began to …


Blue-Green Sustainability Framework For Building Assessment Based Multifunctional Analysis Of Regions Through Input-Output (Mario), Pedro Maximiliano Cortez Prof., Anna Vinciguerra Prof., Lorenzo Rinaldi Prof., Matteo Vincenzo Rocco Prof., Benjamin Sanchez Prof Jun 2025

Blue-Green Sustainability Framework For Building Assessment Based Multifunctional Analysis Of Regions Through Input-Output (Mario), Pedro Maximiliano Cortez Prof., Anna Vinciguerra Prof., Lorenzo Rinaldi Prof., Matteo Vincenzo Rocco Prof., Benjamin Sanchez Prof

CIB Conferences

The concepts of building and construction are central in the development of national economies all over the world. Along with this growth in national economies, however, there is increasing concern over the high environmental impact caused by the building industry. A growing body of published work provides evidence that buildings globally contribute to 40% of greenhouse gas emissions, 50% of energy and consumption, and 15% of drinking water usage. To date, there is a current lack of studies of evidence-based literature specifically relating to the use of Life Cycle Assessment (LCA) extended Multi Region Input-Output (MRIO) approach for building sustainability …


Case Study: Comparison Study Between Dispute Adjudication Boards And Arbitrations For Construction Contract Resolution, Sebastian Soto Ortiz, Daniel J. Mascaraque Glenn Jun 2025

Case Study: Comparison Study Between Dispute Adjudication Boards And Arbitrations For Construction Contract Resolution, Sebastian Soto Ortiz, Daniel J. Mascaraque Glenn

CIB Conferences

The construction Industry is a sector vulnerable to disputes in terms of parties not being able to reach agreements. Collaboration between parties (client, contractor, subcontractors) is altered when a conflict arises and threatens to disturb relations, schedules and even the project itself. Typical methods to solve unresolved disputes involve arbitrations and court litigation, however, both options present conditions that take time and cost from both parties. Managing dispute resolution methods in construction contracts is crucial to avoid delays and ensure the work completion within the scheduled timeframe. This paper investigates the implementation and effectiveness of Dispute Arbitration Boards (DABs) in …


Challenges And Benefits Of Using Bim Technologies To Improve Construction Safety: An Exploratory Case Study, Abdulaziz Alotaibi, John A. Gambatese Jun 2025

Challenges And Benefits Of Using Bim Technologies To Improve Construction Safety: An Exploratory Case Study, Abdulaziz Alotaibi, John A. Gambatese

CIB Conferences

Building Information Modeling (BIM) continues to experience rapid growth in the construction industry. BIM changes how design and construction can be approached by using algorithms that automatically assess various elements of project designs and construction, including potential safety risk. Compared with other approaches which evaluate safety risk during the design and execution phases, BIM models can help reduce the number of workers and resources used to ensure proper safety management. This paper presents a research study to investigate BIM technologies (e.g., Robotic Total Station and Navisworks) commonly implemented and any challenges and needed improvements to benefit construction safety. The research …


A Reliability-Based Conceptual Framework For Carbon Trading Management In The Construction Sector, Linna Geng, Robert Moehler, Patrick X.W. Zou, Yingbin Feng Jun 2025

A Reliability-Based Conceptual Framework For Carbon Trading Management In The Construction Sector, Linna Geng, Robert Moehler, Patrick X.W. Zou, Yingbin Feng

CIB Conferences

The construction sector is increasingly impacted by carbon trading policies across its supply chains in various countries. These policies require construction entities to purchase carbon permits if their emissions exceed allocated limits, while those with lower emissions can sell excess permits. A key challenge is the effective allocation of carbon responsibility, which directly affects the cost-effectiveness and the success of carbon trading in reducing the sector emissions. However, quantifying uncertainty in carbon emissions remains a significant challenge. This paper introduces a reliability-based framework that captures uncertainties and interactions between carbon emissions and allocations under a shared responsibility model between construction …


Conppmf: Construction Datasets For Privacy-Preserving Mental Fatigue, Jianhuan Zeng, Xiao Li, Zenan Zhang Jun 2025

Conppmf: Construction Datasets For Privacy-Preserving Mental Fatigue, Jianhuan Zeng, Xiao Li, Zenan Zhang

CIB Conferences

Construction workers’ unsafe behavior is the leading cause of on-site accidents, greatly influenced by mental fatigue. Existing available datasets for mental fatigue are scarce in construction. Moreover, collecting and using private data, such as facial images, bio-signals, and speech, raises significant privacy concerns, leading to difficulty in data collection during model implementation. To tackle these challenges, this research aims to introduce a replicable multi-modal dataset named ConPPMF to monitor mental fatigue on construction sites, focusing on worker comfort and privacy. The dataset comprises physiological data from smartwatches and time-synchronized visual data from cameras. Fatigue status is labeled through self-reported assessments …


Sidewalk Pavement Defect Detection With Instance Segmentation: A Step Towards Improving Sidewalk Quality, Abdul-Mugis Yussif, Tarek Zayed, Ridwan Taiwo, Ali Fares Jun 2025

Sidewalk Pavement Defect Detection With Instance Segmentation: A Step Towards Improving Sidewalk Quality, Abdul-Mugis Yussif, Tarek Zayed, Ridwan Taiwo, Ali Fares

CIB Conferences

Making cities walkable and supportive of non-motorized transportation enhances sustainability and inclusivity. Sidewalks, the primary infrastructure in direct contact with pedestrians to support their daily travel needs, deteriorate and develop faults with time and continuous use. However, manual and commonly available non-destructive inspections often are slow, labor-intensive, and cost-inhibitive. This study proposes a quick and cheap method using instance segmentation techniques to detect sidewalk pavement surface defects automatically. The proposed methods are two instance innovative approaches to train the Mask R-CNN (MRCNN) instance segmentation model to identify and provide the respective boundaries of each defect. The first and most reliable …


Systematic Assessment And Dynamic Optimization Of End-Of-Life Carbon In Modular Integrated Construction, Xinping Wen, Yue Teng, Geoffrey Qiping Shen Jun 2025

Systematic Assessment And Dynamic Optimization Of End-Of-Life Carbon In Modular Integrated Construction, Xinping Wen, Yue Teng, Geoffrey Qiping Shen

CIB Conferences

Modular integrated construction (MiC) has emerged as an effective construction technique for mitigating carbon emissions from buildings. Despite the great efforts dedicated to quantifying the carbon generated by MiC buildings, the carbon values and savings potential during the end-of-life (EoL) phase have never been made explicit. This study aims to systematically evaluate and dynamically optimize the EoL carbon in relation to MiC buildings. An innovative carbon assessment model was developed by integrating system dynamics (SD) into the life cycle assessment (LCA) framework and then empirically validated through a case study of a steel residential MiC building in Hong Kong. The …


Brain Activity Patterns While Viewing Construction Signs: An Eeg Study Of Attention And Memory Encoding, Minghao Dong, Chiu Yu-Chin, Behzad Esmaeili Jun 2025

Brain Activity Patterns While Viewing Construction Signs: An Eeg Study Of Attention And Memory Encoding, Minghao Dong, Chiu Yu-Chin, Behzad Esmaeili

CIB Conferences

To support efforts to improve safety communication within a construction setting, this study investigated the neural correlates of attention and memory encoding from subjects viewing construction signs to observe whether neural oscillations during viewing relate to participants’ subsequent recall of the safety information. The study recruited seventeen participants with construction-related backgrounds and collected electroencephalography (EEG) data as participants viewed construction signs. A subsequent memory test using hit rates categorized participants into groups with excellent versus poor memory of the signs. Event-related time-frequency analyses examined frontal gamma (associated with attention) and prefrontal theta (associated with memory encoding) oscillations as a function …


Advancing Ergonomic Solutions: Lessons From Lower-Body Exoskeleton Trials In Construction, Prosper Gbiengu, Muhammad Khan, Cole Woods, Nnaji Chukwuma, Vishesh Vikas Jun 2025

Advancing Ergonomic Solutions: Lessons From Lower-Body Exoskeleton Trials In Construction, Prosper Gbiengu, Muhammad Khan, Cole Woods, Nnaji Chukwuma, Vishesh Vikas

CIB Conferences

Work-related musculoskeletal disorders (WMSDs) present significant challenges in the construction industry, where workers are at high risk of lower back and other injuries. Exoskeletons (EXOs) offer a promising ergonomic solution, but their adoption in construction remains underexplored, particularly regarding user perceptions, usability, and real-time feedback. This study evaluated the experiences of 16 construction workers who used a prototype passive lower-body EXO during a three-hour trial on active worksites. Feedback was analyzed thematically, revealing critical factors influencing EXO usability, including comfort, fit, tool compatibility, performance, and durability. Participants reported benefits such as reduced lower-back strain and improved posture, but discomfort from …


Lean Digital Management For Production Control, Kevin Mchugh Mr Jun 2025

Lean Digital Management For Production Control, Kevin Mchugh Mr

CIB Conferences

The understanding of Lean Construction (LC) management philosophy is essential to making effective decisions in construction projects. LC's philosophy focuses on identifying and eliminating process waste while adding value to production. In construction management, timely decisions and instructions can positively impact projects. This paper will examine how lean and digital methodology can positively influence construction management. This research focuses on a digitised Last Planner System® (LPS) that provides a collaborative platform to make informed decisions promptly. Integrating numerous digital platforms, such as an Unmanned Aerial Vehicle (UAV) with 4K camera technology and virtual field walks using 360° images. The synergy …


Examining Key Factors Influencing Safety Behaviors Of Young Workers In The Construction Sector, Qinjun Liu, Hayden Ward Jun 2025

Examining Key Factors Influencing Safety Behaviors Of Young Workers In The Construction Sector, Qinjun Liu, Hayden Ward

CIB Conferences

Young workers form a significant portion of Australia’s construction workforce but face heightened risks due to inexperience and insufficient safety measures. The construction industry accounts for 20% of fatalities in this age group, exacerbated by factors such as inadequate training, peer influence, and poor workplace safety culture. Despite these risks, there is limited research on the safety behaviors of young construction workers. This study addresses this gap by investigating key factors influencing the safety practices of workers aged 18-24 in the Australian construction sector. Through a comprehensive literature review and correlation analysis, this research examines how individual characteristics and safety …


Using Case Studies To Determine Automatable Activities In Construction Bid Preparation, Oscar Kwame Kwasafo, Samuel Laryea, Neil Govender Jun 2025

Using Case Studies To Determine Automatable Activities In Construction Bid Preparation, Oscar Kwame Kwasafo, Samuel Laryea, Neil Govender

CIB Conferences

The purpose of this study is to determine the automation potential of the key activities in the construction bid proposal preparation process. The activities were analyzed for their capability of being fully or partially automated based on a predetermined approach towards developing a bid automation model while aligning with the Sustainable Development Goals (SDGs) related to industry innovation and infrastructure. Case studies were conducted with two major engineering consulting firms in South Africa to identify and understand the key activities in the bid proposal preparation process. The research reveals that key activities like content review and requirements summary preparation, method …


Factors Affecting Residential Property Values: The Case Study Of Kimberly, South Africa, Nomzamo Mdunyelwa Miss, Christopher Amoah Dr Jun 2025

Factors Affecting Residential Property Values: The Case Study Of Kimberly, South Africa, Nomzamo Mdunyelwa Miss, Christopher Amoah Dr

CIB Conferences

Kimberley is a mining town in South Africa that has witnessed increased property values over the years. This study aimed to establish the factors contributing to the increase in residential property value in Kimberley. A quantitative research approach was used to attain the research objectives. Data were collected from 200 participants: landlords, tenants, estate agents, and property investors. Data was analysed through descriptive and inferential statistics using Statistical Package for the Social Sciences (SPSS) software. The study found that people in the case study area generally perceive property values as high. The main factors affecting the hike in residential property …


Machine Learning For The Prediction Of Rework In Green Buildings, Abdullateef Olanrewaju Jun 2025

Machine Learning For The Prediction Of Rework In Green Buildings, Abdullateef Olanrewaju

CIB Conferences

Green buildings were developed to reduce the negative impact of construction on occupants, communities, and the environment, while also improving contractor productivity and profit margins. However, construction companies have documented instances of rework in green buildigs, despite the advantages and potential of sustainable building designs. This paper reports research that identified the prediction of rework green buildings; Eight machine learning models were trained to predict the occurrence of reworks in green buildings. The dataset consisted of 65 responses and 16 features. Feature scaling and normalisation to standardise the features were performed across the dataset. The research finds variation in the …


The Influence Of 4ir On Human Factors In Construction Health And Safety In South Africa, Isabella Chandi Miss, Musonda Innocent Prof, Rebecca Alowo Dr Jun 2025

The Influence Of 4ir On Human Factors In Construction Health And Safety In South Africa, Isabella Chandi Miss, Musonda Innocent Prof, Rebecca Alowo Dr

CIB Conferences

This article seeks to evaluate the influence of 4IR and human factors on the construction health and safety in South Africa to provide an effective framework for improving construction health and safety in South Africa. The construction industry has been identified as one of the most hazardous industries in many parts of the world, as measured by work-related mortality, workers’ compensation, injury, and fatality rates. The researchers adopted a mixed-methods approach, combining quantitative and qualitative methods to comprehensively address the research questions and employed SPSS analysis to examine safety factors related to work pressure and their effects on compliance with …


Smart City Digital Twin: A System-Of-Systems Approach, Rana Khallaf, Chimay Anumba, Gabriel Castelblanco, Makarand Hastak Jun 2025

Smart City Digital Twin: A System-Of-Systems Approach, Rana Khallaf, Chimay Anumba, Gabriel Castelblanco, Makarand Hastak

CIB Conferences

The concept of smart cities has emerged to battle the problems facing cities from rapid urbanization and mismanagement of resources. In order to monitor and control these large-scale environments such as cities, digital twins were proposed. These digital twins represent a large-scale environment virtually and connect it to the physical world. However, complexity arises when studying these cities. A city is a complex system of interconnected systems, or a system-of-systems (SoS), according to definitions by systems engineering. To understand how SoS can be applied to a smart city digital twin, a literature review is first conducted on SoS applications in …


The Performance Of Key Stakeholders Relative To Construction Health And Safety In South Africa, John Julian Smallwood, Peter Dobson Jun 2025

The Performance Of Key Stakeholders Relative To Construction Health And Safety In South Africa, John Julian Smallwood, Peter Dobson

CIB Conferences

Construction health and safety (H&S) remains a challenge in South Africa, which manifests itself in accidents, fatalities, injuries, and ill-health. Furthermore, previous research findings and anecdotal evidence indicate that key stakeholders are not H&S compliant. The quantitative method was adopted for the study reported on, which entailed the completion of a self-administered questionnaire by delegates attending the Industry Day of a construction safety, health, and wellbeing conference in Cape Town, South Africa, prior to the commencement of the presentations. The aim of the study was to determine the extent to which, inter alia, Construction H&S Agents (CHSAs) and Construction H&S …


Proactive Risk Identification In New Zealand Infrastructure Projects: A Machine Learning Approach To Classifying Project Risk, Dr Tirth Patel, Assoc. Prof. Eric Scheepbouwer, Dr. Jacobus Daniel Van Der Walt Jun 2025

Proactive Risk Identification In New Zealand Infrastructure Projects: A Machine Learning Approach To Classifying Project Risk, Dr Tirth Patel, Assoc. Prof. Eric Scheepbouwer, Dr. Jacobus Daniel Van Der Walt

CIB Conferences

In the construction industry, proactive identification and management of challenges such as delays, budget constraints, and regulatory hurdles are essential for effective risk management and successful project delivery. Traditional methods, relying on manual analysis and expert judgment, are often time-consuming, inconsistent, and subjective. This study proposes a data-driven framework to automate the identification and classification of challenges within project descriptions using Natural Language Processing (NLP) and machine learning (ML) techniques. Utilizing the Pacificon dataset, comprising 254,923 infrastructure projects across New Zealand, the study defines challenge categories through regular expressions and implements a machine learning pipeline with TfidfVectorizer and Logistic Regression. …


Assessment Of Interdependency For Building Components In Facility Management, Ashish Kumar Pampana, Soojin Yoon, Theodore J. Weidner Jun 2025

Assessment Of Interdependency For Building Components In Facility Management, Ashish Kumar Pampana, Soojin Yoon, Theodore J. Weidner

CIB Conferences

This research presents a systematic approach for assessing component interdependencies within building subsystems in relation to unplanned maintenance (UPM). Utilizing a three-step methodology—quantitative content analysis, component causal relationships, and interdependency analysis—the study leverages work order description data to identify key components and their interactions. By applying social network analysis to top keyword and term frequency data, the study examines component centrality, revealing critical interdependencies that impact maintenance needs. Findings show that specific components, such as the steel damper and supply fan, play prominent roles within the subsystem network, with significant ripple effects in case of failure. This methodology not only …