keyword
https://read.qxmd.com/read/38222074/development-and-validation-of-a-farm-and-province-level-swine-flow-simulation-model-using-discrete-events-and-ontario-swine-farm-and-provincial-input-data
#1
JOURNAL ARTICLE
Maggie Henry, Wade McDonald, Robert M Friendship, Amy L Greer, Zvonimir Poljak
Infectious disease events can cause disruptions in service-based and agricultural industries. The list of possible events is long and varies from the incursion or emergence of a reportable animal pathogen to the recently documented interruptions caused by the COVID-19 pandemic. There is a need to develop models that can determine the impact of pathogens and mitigation measures on populations that are not directly affected by the pathogen in the case of a reportable disease, particularly when the health and welfare of these populations could be affected due to resulting disruptions in trade and supply chains...
January 2024: Canadian Journal of Veterinary Research
https://read.qxmd.com/read/38167411/mission-oriented-determination-of-regional-weapon-maintenance-demand-in-simulation
#2
JOURNAL ARTICLE
Hu Zhi-Gang, Lou Jing-Jun, Zeng Bin
Determining maintenance demand ahead of mission is crucial to practical weapon maintenance, particularly to regional warship weapon maintenance. Attention is paid only to reliability, and the nature of mission or the consequence of damage is ignored while determining the regional warship weapon maintenance demand. For this reason, a method for determining regional maintenance demand based on simulation is put forward in this paper. Regional weapon maintenance system is first analyzed to build a mission-oriented maintenance demand model with the concept of mission-induced failure...
January 2, 2024: Scientific Reports
https://read.qxmd.com/read/37997925/asas-nanp-symposium-mathematical-modeling-in-animal-nutrition-agent-based-modeling-for-livestock-systems-the-mechanics-of-development-and-application
#3
JOURNAL ARTICLE
Karun Kaniyamattam, Luis O Tedeschi
Over the last three decades, agent-based modeling/model (ABM) has been one of the most powerful and valuable simulation-based decision modeling techniques used to study the complex dynamic interactions between animals and their environment. ABM is a relatively new modeling technique in the animal research arena, with immense potential for routine decision-making in livestock systems. We describe ABM's fundamental characteristics for developing intelligent modeling systems, exemplify its use for livestock production, and describe commonly used software for designing and developing ABM...
January 3, 2023: Journal of Animal Science
https://read.qxmd.com/read/37954189/an-agent-based-modeling-and-virtual-reality-application-using-distributed-simulation-case-of-a-covid-19-intensive-care-unit
#4
JOURNAL ARTICLE
Jalal Possik, Ali Asgary, Adriano O Solis, Gregory Zacharewicz, Mohammad A Shafiee, Mahdi M Najafabadi, Nazanin Nadri, Abel Guimaraes, Hossein Iranfar, Philip Ma, Christie M Lee, Mohammadali Tofighi, Mehdi Aarabi, Simon Gorecki, Jianhong Wu
Hospitals and other healthcare settings use various simulation methods to improve their operations, management, and training. The COVID-19 pandemic, with the resulting necessity for rapid and remote assessment, has highlighted the critical role of modeling and simulation in healthcare, particularly distributed simulation (DS). DS enables integration of heterogeneous simulations to further increase the usability and effectiveness of individual simulations. This article presents a DS system that integrates two different simulations developed for a hospital intensive care unit (ICU) ward dedicated to COVID-19 patients...
August 2023: IEEE Transactions on Engineering Management
https://read.qxmd.com/read/37936037/research-on-transportation-management-model-of-covid-19-medical-waste-a-case-study-in-beijing-china
#5
JOURNAL ARTICLE
Hao Liu, Zhong Yao, Sebastiaan Meijer
During the COVID-19 pandemic, disposable masks, protective clothing, gloves, and nasopharyngeal swabs collected by nucleic acid testing formed a large amount of medical waste. Medical waste has strict temporary storage time requirements in hospitals, which need to be transported to medical waste disposal plants within the specified time. However, as most of disposal plants are far away from downtown, they also need to be responsible for the transportation and disposal of medical waste in many hospitals, and put forward higher requirement for transportation routes...
November 8, 2023: Environmental Science and Pollution Research International
https://read.qxmd.com/read/37545266/research-on-contactless-intelligent-medication-pickup-mode-selection-based-on-a-hospital-in-china-under-covid-19
#6
JOURNAL ARTICLE
Xinyi Liu, Hao Liu, Yuanji Liu
BACKGROUND: During an outbreak such as COVID-19, hospital staff needs to be in close contact with all types of patients visiting the hospital and the risk of cross-infection is extremely high. Payment and medication pickup is a mandatory part of a patient's hospital visit, with direct contact between healthcare workers and patients, and long waiting times in the hospital area, which can easily lead to the spread of disease infection. OBJECTIVE: This paper designed the prototype of a contactless smart medicine cabinet based on RFID technology and optimized the patient consultation and medication pickup process to address these problems...
July 27, 2023: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://read.qxmd.com/read/37305072/process-modeling-a-radiation-oncology-clinic-workflow-from-therapeutic-simulation-to-treatment-identifying-impending-strain-and-possible-treatment-delays
#7
JOURNAL ARTICLE
Varun Kumar Chowdhry, Natalie Catherine Simpson
PURPOSE: The administration of safe, high-quality radiation therapy requires the systematic completion of a series of steps from computed tomography simulation, physician contouring, dosimetric treatment planning, pretreatment quality assurance, plan verification, and, ultimately, treatment delivery. Nevertheless, due consideration to the cumulative time required to complete each of these steps is often not given sufficient attention when determining patient start date. We set out to understand the systemic dynamics as to how varying patient arrival rate can affect treatment turnaround times using Monte Carlo simulations...
2023: Advances in Radiation Oncology
https://read.qxmd.com/read/37275126/simulation-of-travel-document-purchase-measures-aimed-at-preventing-the-spread-of-covid-19-case-study-from-slovakia
#8
JOURNAL ARTICLE
Zdenka Bulková, Juraj Čamaj, Adrián Šperka, Simona Jursová
The COVID-19 pandemic has had a significant impact on railway services, such as restrictions on transport services, introduction of strict anti-pandemic measures at railway stations, and a ban on free travel. This study simulated passenger flow at the Bratislava railway station before and during the COVID-19 pandemic. This study provides an overview of the number of tickets sold, average waiting time of passengers, and time spent by passengers at ticket windows during peak and off-peak hours. The mass-service theory was used as the operational research method...
July 2023: Transportation research interdisciplinary perspectives
https://read.qxmd.com/read/36900757/is-it-possible-to-predict-covid-19-stochastic-system-dynamic-model-of-infection-spread-in-kazakhstan
#9
JOURNAL ARTICLE
Berik Koichubekov, Aliya Takuadina, Ilya Korshukov, Anar Turmukhambetova, Marina Sorokina
BACKGROUND: Since the start of the COVID-19 pandemic, scientists have begun to actively use models to determine the epidemiological characteristics of the pathogen. The transmission rate, recovery rate and loss of immunity to the COVID-19 virus change over time and depend on many factors, such as the seasonality of pneumonia, mobility, testing frequency, the use of masks, the weather, social behavior, stress, public health measures, etc. Therefore, the aim of our study was to predict COVID-19 using a stochastic model based on the system dynamics approach...
March 3, 2023: Healthcare (Basel, Switzerland)
https://read.qxmd.com/read/36751401/a-simulation-approach-for-covid-19-pandemic-assessment-based-on-vaccine-logistics-sars-cov-2-variants-and-spread-rate
#10
JOURNAL ARTICLE
Burak Erkayman, Ferhat Ak, Sadrettin Çodur
Despite advances in clinical care for the coronavirus (COVID-19) pandemic, population-wide interventions are vital to effectively manage the pandemic due to its rapid spread and the emergence of different variants. One of the most important interventions to control the spread of the disease is vaccination. In this study, an extended Susceptible-Infected Healed (SIR) model based on System Dynamics was designed, considering the factors affecting the rate of spread of the COVID-19 pandemic. The model predicts how long it will take to reach 70% herd immunity based on the number of vaccines administered...
February 2023: Simulation
https://read.qxmd.com/read/36156944/the-influence-of-mutual-assistance-of-construction-workers-with-different-personality-traits-on-team-safety
#11
JOURNAL ARTICLE
Keqing Li, Ting-Kwei Wang, Anyuan Yu, Jieh-Haur Chen
Construction workers' unsafe behaviors are closely related to construction safety performance. Most existing studies on construction workers' personality traits and safety behaviors have ignored the flexibility of worker mix at construction sites, the dynamics of workers' behaviors, and the complexity of environmental risks at construction sites. Based on the cognitive process of construction workers' safety behaviors and from the perspective of personality traits, this research establishes an agent-based model of steelworkers' mutual assistance behavior...
2022: Computational Intelligence and Neuroscience
https://read.qxmd.com/read/36045430/estimating-social-contacts-in-mass-gatherings-for-disease-outbreak-prevention-and-management-case-of-hajj-pilgrimage
#12
JOURNAL ARTICLE
Mohammadali Tofighi, Ali Asgary, Ghassem Tofighi, Mahdi M Najafabadi, Julien Arino, Amine Amiche, Ashrafur Rahman, Zachary McCarthy, Nicola Luigi Bragazzi, Edward Thommes, Laurent Coudeville, Martin David Grunnill, Lydia Bourouiba, Jianhong Wu
BACKGROUND: Most mass gathering events have been suspended due to the SARS-CoV-2 pandemic. However, with vaccination rollout, whether and how to organize some of these mass gathering events arises as part of the pandemic recovery discussions, and this calls for decision support tools. The Hajj, one of the world's largest religious gatherings, was substantively scaled down in 2020 and 2021 and it is still unclear how it will take place in 2022 and subsequent years. Simulating disease transmission dynamics during the Hajj season under different conditions can provide some insights for better decision-making...
September 1, 2022: Tropical Diseases, Travel Medicine and Vaccines
https://read.qxmd.com/read/35789683/an-agent-based-modeling-framework-for-the-design-of-a-dynamic-closed-loop-supply-chain-network
#13
JOURNAL ARTICLE
Ayşegül Bozdoğan, Latife Görkemli Aykut, Neslihan Demirel
The supply chain is a dynamic and uncertain system consisting of material, information, and fund flows between different organizations, from the acquisition of the raw materials to the delivery of the finished products to the end customers. Closed-loop supply chains do not end with the delivery of the finished products to the end customers, the process continues until economic value is obtained from the returned products or they are disposed properly in landfills. Incorporating reverse flows in supply chains increases the uncertainty and complexity, as well as complicating the management of supply chains that are already composed of different actors and have a dynamic structure...
June 28, 2022: Complex Intell Systems
https://read.qxmd.com/read/35743865/the-coevolution-of-biomolecules-and-prebiotic-information-systems-in-the-origin-of-life-a-visualization-model-for-assembling-the-first-gene
#14
REVIEW
Sankar Chatterjee, Surya Yadav
Prebiotic information systems exist in three forms: analog, hybrid, and digital. The Analog Information System (AIS), manifested early in abiogenesis, was expressed in the chiral selection, nucleotide formation, self-assembly, polymerization, encapsulation of polymers, and division of protocells. It created noncoding RNAs by polymerizing nucleotides that gave rise to the Hybrid Information System (HIS). The HIS employed different species of noncoding RNAs, such as ribozymes, pre-tRNA and tRNA, ribosomes, and functional enzymes, including bridge peptides, pre-aaRS, and aaRS (aminoacyl-tRNA synthetase)...
June 2, 2022: Life
https://read.qxmd.com/read/35627980/simulating-a-hockey-hub-covid-19-mass-vaccination-facility
#15
JOURNAL ARTICLE
Ali Asgary, Hudson Blue, Felippe Cronemberger, Matthew Ni
Mass vaccination is proving to be the most effective method of disease control, and several methods have been developed for the operation of mass vaccination clinics to administer vaccines safely and quickly. One such method is known as the hockey hub model, a relatively new method that involves isolating vaccine recipients in individual cubicles for the entire duration of the vaccination process. Healthcare staff move between the cubicles and administer vaccines. This allows for faster vaccine delivery and less recipient contact...
May 4, 2022: Healthcare (Basel, Switzerland)
https://read.qxmd.com/read/35451051/agent-based-modeling-for-theme-park-evacuation
#16
JOURNAL ARTICLE
Krassimir Tzvetanov, Austin Riegsecker, Braiden Frantz, Chenxi Xiong, Robert Bott, Travis Cline, Ben Dubiel, J Eric Dietz
Each year theme parks can see up to 20 million patrons, but often little effort is put into planning for an emergency evacuation. In this study, we built a multiagent simulation model using AnyLogic® 8.5.1. The model was based on a preliminary design of a theme park provided by AOA Builds, Orlando. This research had two goals: the first was to compare evacuation time when the park is full (1) using only the main guest gate and (2) using all seven available exits. The second goal was to model first responder response time between various start and end locations within the park...
2022: Journal of Emergency Management: JEM
https://read.qxmd.com/read/35451049/software-library-for-agent-based-modeling-and-simulation-of-active-shooter-events
#17
JOURNAL ARTICLE
Braiden Frantz, Robert Bott, J Eric Dietz
Software libraries have been used for decades to produce code in a quick and cost-effective manner. The use of well-designed libraries permits software developers and other professionals to create applications due in part to code reusability. Also, good libraries grant lesser skilled developers the opportunity to make high-quality applications they otherwise could not produce. In the field of active shooting incident (ASI) research, various tools have been used for years that give researchers the ability to conduct exploratory research...
2022: Journal of Emergency Management: JEM
https://read.qxmd.com/read/35350994/developing-a-dynamic-simulation-model-to-support-the-nationwide-implementation-of-whole-genome-sequencing-in-lung-cancer
#18
JOURNAL ARTICLE
Michiel van de Ven, Maarten IJzerman, Valesca Retèl, Wim van Harten, Hendrik Koffijberg
BACKGROUND: This study shows how dynamic simulation modeling can be applied in the context of the nationwide implementation of Whole Genome Sequencing (WGS) for non-small cell lung cancer (NSCLC) to inform organizational decisions regarding the use of complex and disruptive health technologies and how these decisions affect their potential value. METHODS: Using the case of the nationwide implementation of WGS into clinical practice in lung cancer in the Dutch healthcare system, we developed a simulation model to show that including service delivery features across the diagnostic pathway can provide essential insight into the affordability and accessibility of care at the systems level...
March 27, 2022: BMC Medical Research Methodology
https://read.qxmd.com/read/34631358/optimizing-planning-and-design-of-covid-19-drive-through-mass-vaccination-clinics-by-simulation
#19
JOURNAL ARTICLE
Ali Asgary, Mahdi M Najafabadi, Sarah K Wendel, Daniel Resnick-Ault, Richard D Zane, Jianhong Wu
Drive-through clinics have previously been utilized in vaccination efforts and are now being more widely adopted for COVID-19 vaccination in different parts of the world by offering many advantages including utilizing existing infrastructure, large daily throughput and enforcing social distancing by default. Successful, effective, and efficient drive-through facilities require a suitable site and keen focus on layout and process design. To demonstrate the role that high fidelity computer simulation can play in planning and design of drive-through mass vaccination clinics, we used multiple integrated discrete event simulation (DES) and agent-based modelling methods...
October 5, 2021: Health and Technology
https://read.qxmd.com/read/34587993/designing-supply-chains-to-meet-the-growing-need-of-vaccines-evidence-from-four-countries
#20
JOURNAL ARTICLE
Wendy Prosser, Cary Spisak, Benjamin Hatch, Joseph McCord, Marie Tien, Greg Roche
BACKGROUND: Immunization supply chains (iSCs) move vaccines from manufacturer to point of use with the added complexities of requiring cold chain and an increasing need for agility and efficiency to ensure vaccine quality and availability. Underperforming iSCs have been widely acknowledged as a key constraint to achieving high immunization coverage rates in low- and middle-income countries. This paper details the system design approach used to analyze the iSC network in Sierra Leone, Madagascar, Niger and Guinea and documents six lessons...
September 29, 2021: Journal of Pharmaceutical Policy and Practice
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