David Claudio

David Claudio
University of Massachusetts Lowell | UML · Department of Mechanical Engineering

Doctor of Philosophy

About

70
Publications
37,652
Reads
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515
Citations
Citations since 2017
28 Research Items
398 Citations
2017201820192020202120222023020406080100120
2017201820192020202120222023020406080100120
2017201820192020202120222023020406080100120
2017201820192020202120222023020406080100120
Additional affiliations
January 2011 - February 2016
Montana State University
Position
  • Professor (Assistant)

Publications

Publications (70)
Article
Mental workload is a multidimensional construct that involves the characteristics of the task, individual factors, and the environment where the task is performed. Responses to tasks that are perceived as mentally demanding can exacerbate ergonomics risk factors affecting employee behavior and attitude, leading to risky actions such as awkward body...
Article
The Hispanic population is growing rapidly in U.S. rural states, yet limitations in Spanish-speaking behavioural health providers are a barrier to accessing care. In Montana, a new immigrant destination, mental health disparities may not yet be fully understood. We describe an interprofessional approach of nurses and engineers using the Plan-Do-Che...
Article
Full-text available
Mass vaccination plays an important role in increasing immunization against COVID-19 and decreasing morbidity. Drive-through and traditional walk-through centers have been set up in most cities in the United States and other countries to vaccinate large numbers of people in a short period of time. This article focuses on a pair of mass vaccination...
Article
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The operating room scheduling problem is a popular research topic due to its complexity and relevance. Previous literature reviews established a useful classification system for categorizing technical operating room scheduling articles through 2014. The increasing number of technical operating room scheduling articles published per year necessitate...
Article
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Background Native American communities in Montana reservations have reported low-level satisfaction in health services. This research explored if the services provided at a Blackfeet Indian Reservation outpatient clinic were designed to meet patient expectations. Methods Staff and patient interviews and surveys allowed service expectations to be a...
Article
Introduction: In 2020, 18.4% of Hispanics experienced mental illness, yet only about a third received treatment compared with nearly half of non-Hispanic Whites. In Montana, where only 11% of the mental health needs are currently met, service utilization is low. The purpose of this study was to determine the perceptions of the Hispanic immigrant p...
Article
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Group-based multi-criteria decision-making (MCDM) is a challenging and time-consuming process often rich with subjectivity. This paper outlines an algorithm created in Python to evaluate every possible criterion weighting combination to assist in making an objective decision. Implications of this study include increased efficiency and reduced subje...
Article
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Purpose: This research aimed to reduce the turnover time (non-operative time) in the operating room (OR) at a US Northwestern hospital. Design/methodology/approach: Data collection consisted of observation and interviews of the aides, circulating nurses, and surgical techs to identify causes of delays and long turnovers. It was determined that the...
Article
Assignment of criteria weights during group multi-criteria decision-making (MCDM) processes is a challenging and time-consuming process often rife with subjectivity. This is particularly evident in hiring or personnel selection processes. Both the military and corporate aviation communities have required a large influx of pilots recently due to an...
Preprint
Full-text available
Background: Native American communities in Montana reservations have reported low-level satisfaction in health services. This research explored if the services provided at a Blackfeet Indian Reservation outpatient clinic were designed to meet patient expectations. Methods: Staff and patient interviews and surveys allowed service expectations to be...
Article
Full-text available
This article examines work-related and Personality personality factors that could influence health providers in experiencing alarm fatigue. The purpose of this study is to provide a basis to determine factors that may predict the potential of alarm fatigue in critical care staff. Design: A questionnaire-based survey and an observational study wer...
Article
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Purpose: Process improvement in service industries, like the registration process in a hospital, can be achieved with the application of lean principles. In this specific case, lean principles were essential to analyze and improve patient satisfaction in a hospital in Montana. The clinics involved in the study included pediatrics (P), internal medi...
Article
Background: The National Aeronautics and Space Administration Task Load Index (NASA-TLX) a nd Surgery Task Load Index (SURG-TLX) are two subjective workload m easurement instruments. Both instruments provide unweighted andweightedworkload measurements. Weighted TLX m easures have seldomly been used byresearchers typically becauseof its high correla...
Article
Group aggregation of the Analytic Hierarchy Process (AHP), both with crisp and fuzzy numbers, is a widely researched field in group multiple criteria decision-making. Typically, if uncertainty needs to be reflected in the outcome of an AHP, triangular fuzzy numbers are used, although this is a controversial method, as many argue that the traditiona...
Article
Background: Engaging minorities in research especially in Montana where Latinos make up a small percentage of the population can be a challenge. We describe an effort to recruit Latinos into a research study by hosting a health screening event. Purpose: This event served as the first step in the creation of an academic-community partnership. Method...
Article
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This research was motivated by the nurses’ decision-making process in the current emergency department (ED) triage process in the United States. It explores how continuous vital signs monitoring can be integrated into the ED. The article presents four shortcomings on current ED triage systems and proposes a new conceptual clinical decision support...
Article
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Operating Rooms (ORs) generate the largest revenues and losses in a hospital. Without the prompt supply of sterile surgical trays from the Sterile Processing Department (SPD), the OR would not be able to perform surgeries to its busy schedule. Nevertheless, little emphasis has been brought in the medical literature to research on surgical instrumen...
Article
Objectives The purpose of our study was to understand the perception of the Latino community in a rural state regarding COVID-19. Over one third of national COVID-19 cases are among Latinos, likely due to an increased prevalence of comorbid risk factors and social determinants of health that make following precautions difficult. Design Respondents...
Article
One strategy to reduce inventories and increase on-time delivery is to use Advanced Demand Information (ADI) in which customers place their orders ahead of their due date. ADI can be divided into perfect or imperfect information. Under perfect ADI, customers send accurate demand information to the suppliers, specifying exact quantities and due date...
Article
Work in healthcare facilities has been categorized as a high-risk job for developing Work-Related Musculoskeletal Disorders (WMSDs). Little attention has been given to the Sterile Processing Department (SPD) employees who are exposed to both mentally and physically demanding conditions, factors that may impose an elevated risk in the development of...
Article
Full-text available
Work Related Musculoskeletal Disorders (WMSDs) can be a result of complex interactions between physical, psychosocial, biological, and individual characteristics. However, the evidence on specific associations is still inconclusive. A previous study conducted at a Sterile Processing Department (SPD) in a local hospital established an association be...
Article
This study focused on increasing productivity and efficiency in a Cancer Clinic (CC) taking into consideration mental workload. The demand of the clinic has increased and the clinic recognized the importance of improving the distribution of the resources. Addressing these objectives have a positive impact in operations, however, it also requires ma...
Article
Over the recent years healthcare organizations in the United States (US) have been looking for methods to improve the efficiency of their processes and the better use of their human resources. Many organizations have adapted traditional industrial and management systems engineering tools and concepts to understand and evaluate nurses' performance;...
Article
Group multi-criteria decision making methodologies are widely used tools in a democratic environment. Previous research work in this field has been done by aggregating results of Analytical Hierarchical Process (AHP) and Analytical Network Process (ANP). Further, elaboration of the group methodology has been done to include the fuzziness in the dec...
Article
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OCCUPATIONAL APPLICATIONS Patients and nurses had positive reactions with respect to perceived usefulness and ease of use of a wireless wearable sensor-based system in two emergency departments. Results showed that patients' perceptions on the ease of use of the technology were more favorable and less variable than nurses' perception. The results a...
Article
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An alarm is a warning of an approaching situation which requires a response. The Emergency Care Research Institute considered alarm hazard as the number one health technology hazard for the years 2012 through 2014. In response, The Joint Commission set a standard for all hospitals in the United States to assess alarm fatigue in their monitoring pro...
Article
Variability in the duration of surgical procedures is one cause of delayed start times for scheduled procedures in operating theaters. While historical procedure durations are frequently used in assigning surgery times to schedule surgery blocks, taking into account the level of variability associated with specific procedures is not commonly utiliz...
Article
Technical debt is a well understood yet understudied phenomena. A current issue is the verification and validation of proposed methods for technical debt management in the context of agile development. In practice, such evaluations are either too costly or too time consuming to be conducted using traditional empirical methods. In this paper, we des...
Article
Right-of-way prioritization at unsignalized intersections has been largely unexplored. Drivers do not always use consistent methods to determine who has the right-of-way to enter the intersection at unsignalized intersections. Problems with right-of-way assumptions include that not all drivers engage in one set algorithm to assess intersections pri...
Conference Paper
Full-text available
Data lost or misconstrued due to malfunctioning research equipment affects accuracy, results and analyses that driving researchers report. Carefully studying the data collection system with an Abstraction Hierarchy gathers necessary information about the equipment location and capabilities which can highlight issues in the collected data where comp...
Conference Paper
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Human factors research in transportation safety has not clearly demonstrated how experimental behaviors are related to public driving behaviors. The appropriateness of determining external validity measures has been debated, and it is known that external validity is not a necessary component in research if those findings do not need to transfer out...
Conference Paper
In transportation safety the term ecological validity is used to describe or establish the validation of research equipment. A review of driving literature produced varying definitions of ecological validity. It lacks definition. Some researchers use ecological validity to refer to the reliability of a cue to be a predictor of behavior. Others use...
Conference Paper
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Calls from industry, non-profits and government consistently encourage engineering programs to create a “well-rounded engineer.” But what is meant by a well-rounded engineer? And how can university faculty meet these requests within the limitations of existing degree programs and the accreditation requirements of ABET? Two years ago, the Industria...
Conference Paper
The Bozeman Deaconess Cancer Center provides infusion services to a large sector of the state of Montana. The center currently treats all types of cancer. The center’s operations include a laboratory, a station used to check the patients’ vital signs, consultations with the doctors, a pharmacy, and the infusion chairs. However, not all patients req...
Article
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The use of forecasting methods in healthcare settings can lead to operational improvements and improved patient care. However, many outpatient care facilities do not engage in demand forecasting and those that do often use rudimentary methods without exploring the best technique to forecast their patient demand. This research study examines the app...
Article
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The triage process may result in long waiting periods during which vital indicators of patients with apparently less urgent problems are not monitored after the initial triage. The integration of technology and decision theory has the potential to assist nurses in recognizing priorities by collecting data on the changing clinical information of pat...
Conference Paper
Full-text available
Variability in length of treatment, increased patient demand, and resource limitations represent part of the complexity of scheduling patients in any outpatient clinic. This study presents a mixed-integer programming optimization model developed with the objective of maximizing resource utilization, while balancing human workload. A simulation mode...
Article
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Nurses are critical resources as they maintain communication with patients, providers, and all other departments. Therefore, nurse unavailability creates a gap in the care delivery process and contributes to patients' wait time. This paper presents a methodology aimed at balancing nursing workload and increasing nurse availability at a workstation...
Article
The topic of readmissions has become more prevalent in healthcare discussions in the past decade. Readmissions are linked to higher healthcare costs and could be used as a potential indicator of a breakdown in the quality of care at a facility. In an attempt to mitigate readmissions a recent strategy has focused on creating statistical models to pr...
Article
Many researchers have used discrete-event simulation of call centers as a tool to improve resource planning and optimize services. This study investigates the use of discrete-event simulation in a more complex system consisting of a multi-stage Information Technology Service Center (ITC) where customers' orders need to go through several processes...
Conference Paper
Full-text available
Simulation is an effective tool for understanding and analyzing a complex system. It has been successfully employed in many sectors. Thus, computer simulation has become a popular tool to healthcare researchers. This paper explains how a complex healthcare system such as an outpatient cancer clinic could be translated into a computer model. It demo...
Conference Paper
Full-text available
One of the challenges in healthcare systems is to achieve integrated decision making process that considers the multiple areas involved in the delivery of care. Often times multiple points of views and evaluation approaches must be considered. Moreover, decision making methods are implemented locally for specific departments or areas, often times d...
Article
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According to the Institute of Medicine (IOM), the quality of healthcare can be greatly enhanced by incorporating systems engineering tools that have dramatically improved safety and quality in other industries. In order for these tools to be effective, it is essential that systems engineers understand the structures, processes and outcomes that are...
Article
A study was conducted at a Montana hospital to reduce turnover time (non-operative time) in the operating room. Data collection consisted of observation and interviews of the aides, circulating nurses, and surgical techs to identify causes of delays and long turnovers. It was determined that the turnover could be divided into two stages: cleaning o...
Article
Unlabelled: Hospitals use a triage system in which health care staff sort's patients into groups. During the long waiting periods after triage, inadvertence of patient's clinical deterioration may occur. Objectives: To determine whether vital signs and oxygen saturation monitoring and reassessment of medical priority during the waiting period ha...
Article
Full-text available
In this paper, we present a method incorporating axiomatic design, TRIZ, and mixed integer programming (MIP) to solve engineering design problems. Axiomatic design decomposes the problem into several mutually independent sub-problems, TRIZ generates all feasible design concepts, and MIP optimizes cost and the numerical configuration among available...
Article
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Many hospital emergency departments (EDs) in the United States have implemented the use of the five-level Emergency Severity Index (ESI) as their clinical decision support method to enhance clinical decision making in the triage process. The ESI designates the most acutely ill patients as level 1 or 2 and those who do not meet these criteria are as...
Article
This paper presents a case study on a rapid improvement event conducted in the Surgical Services Department of a medium-sized hospital. First-round surgery patients were arriving to the operating room (OR) behind schedule, causing delays in surgical procedures. Data were collected and a current-state value stream map was drawn which included the re...
Article
This research focuses on the application of Multi-attribute utility theory (MAUT) models for patient prioritization in the emergency department (ED). MAUT is employed due to the inherent uncertainty in ED settings. MAUT is based on the von Neumann-Morgenstern lottery in which indifference points between lottery and certainty are estimated. One of t...
Article
Most Emergency Departments (ED) use a sorting system to distinguish between patients who require immediate attention and those who are stable enough to wait. However, the order within a group is determined using the First Come-First Serve (FCFS) principle. This policy may lead to the incorrect assumption that a patient's severity is time dependent...
Article
Full-text available
With the increased awareness of productivity problems in healthcare operations, many researchers have proposed the implementation of tools and methods developed in other fields to benefit healthcare delivery. Accordingly, we present in this paper an exploratory work using a hypothetical example of a decision-making methodology, the multi-attribute...
Conference Paper
This paper presents the problem of a fantasy baseball team managed by three decision makers with different methods of conducting performance reviews. A multiple-criteria, multiple-decision maker optimization approach was used in order to select the best pitching staff for the team. The criteria considered was based on the 2008 MLB pitching statisti...
Article
Full-text available
Multiple criteria selection problems deal with ranking alternatives under conflicting criteria. In the resolution of such problems, scaling methods are used to standardise the data and weighting methods are used to assign a preference to each criterion based on the decision maker's assessment. Several methods have been proposed for weighting and sc...
Article
Full-text available
Choosing the appropriate production and inventory control strategy is a key factor for the success of modern enterprises. Some industries adopt a Make-To-Order (MTO) policy to improve their punctuality and flexibility, while others adopt a Make-To-Stock (MTS) policy to minimise and control the inventory. This study proposes a hybrid strategy combin...
Article
The use of wireless technology and bio-sensors in healthcare applications has been proposed and successfully implemented in previous studies. While its use in healthcare seems promising the perceived utility and usefulness of such systems has not been assessed in detail. User feedback is crucial as it would determine the attitude towards using the...
Article
This paper investigates the benefits of integrating advance demand information (ADI) with Kanban-based pull production and inventory control systems (PICS). Predicting the impact of several PICS design parameters such as Kanban card limits, base stock levels, demand information lead times, and the quality of ADI on performance measures such as thro...
Article
During the idea generation stage of the design process, multiple concepts are created to subsequently select the best one. This selection is critical due to its implications for the rest of the product design and development process, and the eventual market success. We propose a hybrid selection method, which is based on AHP and Borda Count for thi...
Article
Full-text available
Thus far studies reported on the interactions of terahertz radiation and skin have centered on the dermal layers. However, we determined that there is a need to account for the effects from hair structures.
Conference Paper
Full-text available
The appropriate production and inventory control policy is a key factor for modern enterprises' success in competitive environment. In the food industry, most of food manufacturers adopt the make-to-order policy to improve their punctuality and flexibility, while some scholars provided other different opinions. This study provides a hybrid policy c...
Conference Paper
Full-text available
This paper investigates the benefits of integrating advance demand information (ADI) with pull-kanban type production and inventory control systems (PICS). Since efficient analytical models for performance evaluation studies of these systems are unavailable, we use simulation experiments for the study. In particular, we investigate the impact of se...

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Projects (2)
Project
Modeling the operation of complex systems (e.g. transportation and manufacturing) as an ordered sequence of well-defined events.
Project
This research studied different techniques to measure staff workload taking into consideration mental and physical workload, and validated and integrated them into a mathematical model. This study took into consideration the balance of human resource workload as a main part of the proposed model rather than only a mathematical solution balancing the capacity of the human resources without overloading them