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Joint Optimization Of Allocation And Release Policy Decisions For Surgical Block Time Under Uncertainty, Mina Loghavi
Joint Optimization Of Allocation And Release Policy Decisions For Surgical Block Time Under Uncertainty, Mina Loghavi
Doctoral Dissertations
The research presented in this dissertation contributes to the growing literature on applications of operations research methodology to healthcare problems through the development and analysis of mathematical models and simulation techniques to find practical solutions to fundamental problems facing nearly all hospitals.
In practice, surgical block schedule allocation is usually determined regardless of the stochastic nature of case demand and duration. Once allocated, associated block time release policies, if utilized, are often simple rules that may be far from optimal. Although previous research has examined these decisions individually, our model considers them jointly. A multi-objective model that characterizes financial, temporal, …
Spare Parts On Demand Using Additive Manufacturing : A Simulation Model For Cost Evaluation., Stefan Jedeck
Spare Parts On Demand Using Additive Manufacturing : A Simulation Model For Cost Evaluation., Stefan Jedeck
Electronic Theses and Dissertations
Little is known about the impact of additive manufacturing in the spare part supply chain. A few studies are available, but they focus on specific parts and their applications only. A general model, which can be adapted to different applications, is nonexistent. This dissertation proposes a decision making framework that enables an interested practitioner/manager to decide whether using additive manufacturing to make spare parts on demand is economical when compared to conventional warehousing strategy. The framework consists of two major components: a general discrete event simulation model and a process of designing a wide range of simulation scenarios. The goal …
Simulation Modeling For Sustainability: A Review Of The Literature, Young B. Moon
Simulation Modeling For Sustainability: A Review Of The Literature, Young B. Moon
Mechanical and Aerospace Engineering - All Scholarship
This article is a review of work published in various journals and conference proceedings on the topics of Simulation Modelling for Sustainability between January 2000 and May 2015. A total of 192 papers are reviewed. The article intends to serve three goals. First, it will be useful to researchers who wish to know what kinds of questions have been raised and how they have been addressed in the areas of simulation modelling for sustainability. Second, the article will be a useful resource for searching research topics. Third, it will serve as a comprehensive bibliography of the papers published during the …
Προσομοιωτικά Παίγνια Αθλητικού Μάνατζμεντ, Yanni D. Afthinos, Zach Kiaffas
Προσομοιωτικά Παίγνια Αθλητικού Μάνατζμεντ, Yanni D. Afthinos, Zach Kiaffas
Yanni D Afthinos
Στην εκπαίδευση του 19ουαιώνα επικρατεί η «μάθηση γνωρίζοντας», που πραγματοποιείται με διαλέξεις, βιβλία, φίλμς (βίντεο-εικόνες). Στον 21ο αιώνα η εκπαίδευση και η διδασκαλία απαιτεί ευθυκρισία και απόκτηση δεξιοτήτων άρα «μάθηση κάνοντας» (Sandler στον Aldrich 2009, p.xxi) η οποία πρέπει να περιλαμβάνει νέα, εξελιγμένα, πιο αποτελεσματικά μέσα μεταφοράς της πληροφορίας, με στοιχεία που προσομοιάζουν την εργασιακή πραγματικότητα. Πλέον μεγάλοι σημαντικοί οργανισμοί όπως οι ένοπλες δυνάμεις, τα σώματα ασφαλείας, η αεροναυπηγική κ.ά., σε δυτικές χώρες περιλαμβάνουν τα παίγνια και τις προσομοιώσεις ως απαραίτητο μέσο στην εκπαίδευση των στελεχών τους, ιδιαίτερα σε καταστάσεις με επικινδυνότητα (Κιάφφας & Αυθίνος, 2013), αλλά και πολλά εκπαιδευτικά …
Modeling And Simulation Of Evacuation Plan For Hancock Stadium, Nirmal Neranjan Weerasekara
Modeling And Simulation Of Evacuation Plan For Hancock Stadium, Nirmal Neranjan Weerasekara
Theses and Dissertations
The goal of this study is to use Modeling and Simulation of Evacuation Plan (MSEP) to support management to execute proper evacuation plan in case of emergency at Hancock Stadium in Illinois State University. Analyses of the research literature and evacuation scenarios are used to build a simulation system that will connect a description of emergency and evacuation situation with its context. It shows how an evacuation plan actually functions. The results of the study will help safety managers to understand the current situations of evacuation according to the specific simulation scenarios. The evacuation simulation is categorized according to the …
Self-Exciting Jumps, Learning, And Asset Pricing Implications, Andras Fulop, Junye Li, Jun Yu
Self-Exciting Jumps, Learning, And Asset Pricing Implications, Andras Fulop, Junye Li, Jun Yu
Research Collection School Of Economics
The paper proposes a self-exciting asset pricing model that takes into account co-jumps between prices and volatility and self-exciting jump clustering. We employ a Bayesian learning approach to implement real-time sequential analysis. We find evidence of self-exciting jump clustering since the 1987 market crash, and its importance becomes more obvious at the onset of the 2008 global financial crisis. We also find that learning affects the tail behaviors of the return distributions and has important implications for risk management, volatility forecasting, and option pricing.
How "Situational" Is Judgment In Situational Judgment Tests?, Stefan Krumm, Filip Lievens, Joachim Huffmeier, Anastasiya A. Lipnevich, Hanna Bendels, Gudio Hertel
How "Situational" Is Judgment In Situational Judgment Tests?, Stefan Krumm, Filip Lievens, Joachim Huffmeier, Anastasiya A. Lipnevich, Hanna Bendels, Gudio Hertel
Research Collection Lee Kong Chian School Of Business
Whereas situational judgment tests (SJTs) have traditionally been conceptualized as low-fidelity simulations with an emphasis on contextualized situation descriptions and context-dependent knowledge, a recent perspective views SJTs as measures of more general domain (context-independent) knowledge. In the current research, we contrasted these 2 perspectives in 3 studies by removing the situation descriptions (i.e., item stems) from SJTs. Across studies, the traditional contextualized SJT perspective was not supported for between 43% and 71% of the items because it did not make a significant difference whether the situation description was included or not for these items. These results were replicated across construct …
Using The Delta-Model For End-Stage Liver Disease To Improve The Decision-Making Process For The Donor Liver System, Joanne Chin
Using The Delta-Model For End-Stage Liver Disease To Improve The Decision-Making Process For The Donor Liver System, Joanne Chin
Walden Dissertations and Doctoral Studies
The purpose of this experimental research was to determine whether using delta-MELD as a criterion for the liver transplant patient selection process could improve the U.S. liver allocation system. This research closed a gap in current literature on the utility of delta-MELD for liver transplant patient selection. The frameworks of systems theory, the analytic hierarchy process, and the Kalman filter contributed to the development of 2 simulation models of the liver allocation system: one that used delta-MELD and one that did not use delta-MELD. The research question examined whether using delta-MELD could improve the liver allocation system by reducing the …
The Relationship Between Simulation Assessments And Standardized Written Examinations For Emergency Medicine Residents, Sheri Leigh Etapa Clarke
The Relationship Between Simulation Assessments And Standardized Written Examinations For Emergency Medicine Residents, Sheri Leigh Etapa Clarke
Master's Theses and Doctoral Dissertations
Historically, the assessment of medical resident knowledge and skill has occurred through standardized written examinations and faculty observation during real patient encounters. The written examinations, including three levels of board qualifying examinations (USMLE and COMLEX-USA) and specialty specific annual in-training examinations, are used to identify each resident’s knowledge deficiencies. Research shows that faculty evaluations are unable to predict how residents will perform on emergency medicine in-training examinations, and that practicing skills on real patients puts patients’ lives at risk. To improve patient care and enhance the learning environment, medical educators have created simulation tools for medical residents to practice procedures …