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Publications (67)
COVID-19 and the resulting financial impacts had budget and workforce implications for organizations involved in emergency shelter provision. To address distancing and sanitation protocols as well as virus transmission and vaccination rates, shelter supplies, facility modifications, and staffing adjustments were needed. As funding and authorization...
Historical data suggest that when a severe tropical storm or hurricane impacts a community, the vulnerable segment of the population suffers the most severe consequences. With an increased aging population, it is crucial to understand how vulnerability alters evacuation behavior. Emergent variables such as fear of COVID-19 require additional explor...
This study examines households' prospective evacuation behavior during a hurricane‐pandemic compound threat. Data from a 2020 survey of coastal Virginia households help answer two questions: (1) What factors associated with the threat and impacts of the COVID‐19 pandemic and hurricanes influence the prospective evacuation behavior of households dur...
In coastal cities, the damage stemming from hurricanes and severe tropical storms may reduce housing stock. Accelerating the reconstruction of housing stock becomes crucial in minimizing the time that residents are displaced. It is critical to understand how to better coordinate all available resources for an effective and balanced reconstruction w...
In the aftermath of a catastrophic weather event, housing recovery and reconstruction activities are highly complex. Coordinating housing recovery activities is generally challenging because complex supply chains converge simultaneously in a highly uncertain environment. In this environment, anticipating and quantifying the extent of potential dama...
Low elevation coastal zones (LECZ) are extensive throughout the southeastern United States. LECZ communities are threatened by inundation from sea level rise, storm surge, wetland degradation, land subsidence, and hydrological flooding. Communication among scientists, stakeholders, policy makers and minority and poor residents must improve. We must...
The COVID-19 pandemic has created new challenges for the emergency management in addressing the cumulative and cascading disasters during 2020 and in planning for the future. This CONVERGE COVID-19 working group was a collaboration between three research Universities and multiple disciplines to conduct six workshops that addressed these challenges....
The logistics of public-sponsored evacuation include transportation assets, personnel, and infrastructure. Effective orchestration leading up to a severe weather event is a complex undertaking requiring capacity that is matched to needs. However, under the compound hurricane-pandemic scenario, the demands for evacuation assistance and the capacity...
This paper examines nonprofits' capacity for responding to simultaneous hurricane-pandemic threat, addressing: (1) strategies nonprofits use to deliver services during the COVID-19 pandemic, and (2) how natural hazards may affect nonprofit roles in emergency service delivery during a pandemic. Data come from a survey of New Orleans-based nonprofits...
Adaptation to sea level rise (SLR) requires coordination among local, state, and federal entities and collaboration across governments, nonprofits, businesses, and residents. This coordination and collaboration are reflected in institutional arrangements associated with a whole-of-government and whole-of-community approach to regional adaptation. T...
This years hurricane season will look much different than in years past. The National Oceanic and Atmospheric Administration is forecasting above-normal activity for the 2020 Atlantic hurricane season, and with a global pandemic still front and center, emergency managers will be faced with unprecedented challenges on how to shelter people safely du...
Severe catastrophic natural disasters adversely affect housing stock and regional capacity to build and repair houses, with unfavorable impacts on the business continuity of industrial and business organizations resting on that affected community. Restoring industrial capacity and business continuity is crucial for the organizations’ survival in th...
This aim of this project was to investigate how residents and business owners in low-to-moderate income communities in Portsmouth, Virginia cope with flooding, and to assess implications for how the local government can better engage with residents to better meet their information needs so they can be more resilient to flooding.
Planning resiliency and sustainability of port operations and critical infrastructure requires risk assessment of storm surge exposure and potential sea level rise. An approach for rapid, screening-level assessment is developed to estimate the current and future risk of exposure to severe storm surges posed to marine terminal facilities in Norfolk,...
Dynamic and complex socio-technical systems notoriously hinder the application of lean thinking and tools and, as a result, any improvement opportunity. Em-blematic is the case of a post-disaster recovery, whose processes and performance are unpredictable due to many sources of complexity, randomness and waste, both for industrial organizations and...
The treatment and management of chronic diseases currently comprise a major fraction of the United States' healthcare expenditures. These expenses are projected to increase as the US population ages. Utilization of the ambulatory healthcare system stemming from chronic conditions has been seen as contributory factor in the rising expenditures. Effo...
U.S. regions are expected to follow the national trend towards investment in renewable energy as part of their electricity portfolio. The progress of energy portfolios that typically involves traditional methods, such as centralized nuclear and coal-fired generation, and towards cleaner-and renewable-source generation will impact economic growth an...
Unlabelled:
The management and treatment of adult asthma has been associated with utilization of health services.
Objectives:
First, to investigate the likelihood of health service utilization, including primary care, emergency department, and hospital stays, among persons diagnosed with an asthma condition relative to those that do not have an...
Investment in transportation infrastructure has been widely utilized as an instrument for inducing economic growth. Such investment usually leads to job creation and an increase in per capita income that attracts population through migration to the region. This increases the utilization of the transport infrastructure over time, resulting in high l...
Objectives:
First, to test a model of the drivers of frequent emergency department utilization conceptualized as falling within predisposing, enabling, and need dimensions. Second, to extend the model to include social networks and service quality as predictors of frequent utilization. Third, to illustrate the variation in thresholds that define f...
This research offers two exploratory frameworks, one for medical regimen compliance and one for medical immediacy. The first classifies compliance awareness, compliance mitigation, and financial limitation for those patients that exhibit nonadherence with a medical regimen. The second classifies medical immediacy and characterizes avoidable utiliza...
Chronic disease is defined as a long lasting health condition, which can develop and/or worsen over an extended time, but which can also be controlled. The monetary and budgetary toll due to its persistent nature has become unsustainable and requires pressing actions to limit their incidence and burden. This paper demonstrates the utility of the Sy...
U.S. regions are expected to follow the national trend towards investment in renewable energy as part of their electricity portfolio. The progress of energy portfolios that typically involves traditional methods, such as centralized nuclear and coal-fired generation, and towards cleaner- and renewable-source generation will impact economic growth a...
This study aims to assess the vulnerability of populations to storm surge flooding in 12 coastal localities of Virginia, U.S.A. Population vulnerability is assessed by way of three physical factors (elevation, slope, and storm surge category), three built-up components (road availability, access to hospitals, and access to shelters), and three hous...
Chronic diseases are persistent ailments that are not preventable or curable with medication or vaccination. Many of the leading chronic conditions in industrialized societies may be related to lifestyle choices. The prevalence of these chronic conditions significantly affects the health, suffering, and longevity of patients. This paper demonstrate...
This paper presents findings on the hurricane evacuation behavior during Hurricane Irene, using results from a large-scale phone survey among residents in the Hampton Roads (HR) area. An aggregate analysis of the key determinants affecting the evacuation decision is presented. Unlike related literature, we take on a unique approach by distinguishin...
Despite the non-trivial number of (non-institutionalized) residents with special needs – referred to as the medically fragile population in this paper – there is virtually no research available to guide the hurricane evacuation planning for this population group. One area is their evacuation time choice behavior that can have tremendous implication...
This research models and simulates, by way of a System Dynamics, approach sleep behavior in the presence of intervention strategies. The authors draw upon the established compartmental Susceptible, Infection, and Recovery (SIR) model used in epidemiology to characterize the potential for children and adolescents to both develop adverse sleep behavi...
Saharan dust is transported across the Atlantic and interacts with the Caribbean seasonal climatic conditions, becoming respirable and contributing to asthma presentments at the emergency department. This study investigated the relationships among dust, climatic variables, and asthma-related visits to the emergency room in Grenada. All asthma visit...
The quick recovery and rebuilding of the housing stock after disaster (natural or man-made) is critical for an affected region, from the socio-economic perspective. The recovery efforts demand a considerable amount of time and resources. An efficient emergency management response system needs to be designed, with the intention of allowing a smooth...
Background/purpose
The occurrence of catastrophic events proves disastrous as they cause significant physical damages, both at the human and material levels. Depending on the magnitude of the event, a natural phenomenon can potentially lead to loss of life, home destruction and alter the economic and social structures of the affected community. The...
The treatment and management of chronic diseases currently comprise a major fraction of the United States' healthcare expenditures. These expenses are projected to increase as the US population ages. Utilization of the ambulatory healthcare system stemming from chronic conditions has been seen as contributory factor in the rising expenditures. Effo...
Despite the widely recognized importance of evacuation planning for residents with special needs – in this paper referred to as the medically fragile population – there is virtually no research available to guide such planning, as opposed to the numerous empirical research studies on the evacuation behavior of the general population. In this paper,...
This article discusses the dynamics inherent in modeling and simulation (M&S) standards development processes within the context of the competitive struggle for resources and market dominance. A conceptual framework is presented that provides the theoretical logic for the tension between inclusive, consensus-driven standards development processes a...
This paper studies a stochastic inventory system exposed to demands that exhibit serial-correlation components. The relationship between different levels of serial-correlation and inventory cost components as well as reorder points and order quantities are analysed in this study. Understanding these relationships provides opportunities for managers...
Chronic conditions, disability limitations (mobility, cognitive, and sensory), and the need for assistance with activities of daily living are characteristics of elderly and medically fragile populations. Theory suggests that households with these vulnerability attributes are more likely to suffer storm-induced adverse and prolonged health conseque...
The occurrence of a natural disaster is generally characterized not only by the tremendous physical and material damage, but also by the substantial social and economic impact on the affected communities. Over the years, the research community has attempted to investigate the different dimensions of these events so that these incidents may be under...
Transportation has been identified as a major barrier to healthcare access, particularly, within vulnerable population groups. The level of healthcare access that most population segments have in traditional transit systems may be increased with new initiatives that involve complex and large investments in transit oriented developments (TOD) projec...
Natural disaster events impact both the short- and long-term health of a region's population. Due to variation in the vulnerability among population segments, a severe storm event can be expected over time to have a greater public health impact upon traditionally underserved and medically fragile populations. This research illustrates the causal re...
Natural disaster events impact both the short- and long-term health of a region’s population. Due to variation in the vulnerability among population segments, a severe storm event can be expected over time to have a greater public health impact upon traditionally underserved and medically fragile populations. This research illustrates the causal re...
Conference code: 104451, Cited By :2, Export Date: 20 August 2016, References: Brailsford, S.C., Harper, P.R., Patel, B., Pitt, M., An analysis of the academic literature on simulation and modelling in health care (2009) Journal of Simulation, 3, pp. 130-140;
Conference code: 104555, Export Date: 27 March 2018
Conference code: 104451, Export Date: 27 March 2018
This article demonstrates the utility of the system dynamics approach to model and simulate U.S. demand for ambulatory health care service both for the general population and for specific cohort subpopulations over the 5-year period, from 2003 to 2008. A system dynamics approach that is shown to meaningfully project demand for services has implicat...
Behaviors learned at school-age are more likely to be sustainable over time. As school-age children age, they change their sleeping patterns. As they experience these changes, the probabilities of developing less healthy behavior increase. Less healthy behavior has been associated to the development of chronic diseases and incidence of riskier beha...
A critical question related to climate change concerns to how rising sea level will affect underserved populations and medically fragile population in coastal zones and floodplains. As sea levels rise, coastal waters will regain near-tidal areas and co-mingle with human-made pollutants, resulting from decades of industrial and commercial activity....
Currently, the U.S. Department of Homeland Security (DHS) elicits probabilistic judgements from the intelligence community on actions terrorists may take to attack the continental U.S. For example, how likely is the adversary to choose agent 'x' over 'y' or target 'a' over target 'b'? Eliciting these types of judgements is difficult and time consum...
Transportation has been identified as a major barrier to healthcare access, particularly, within vulnerable population groups. The level of healthcare access that most population segments have in traditional transit systems may be increased with new initiatives that involve complex and large investments in transit oriented developments (TOD) projec...
Conference code: 94539, Cited By :2, Export Date: 27 March 2018
Traditional thermal electricity production is associated with undesirable public health and environment consequences. There is growing interest in the production of electricity from renewable sources such as wind, solar, and biomass. Not unlike traditional power generation, renewable electricity production also must strike a balance among cost, rel...
Investment in transportation infrastructure has been widely utilized as an instrument for inducing economic growth in a country or region. Such investment usually leads to job creation and an increase in per capita income that, in turn, encourages an increase in population through migration. The increased spending of these newly migrated population...
Medical treatment for chronic conditions forms a major portion of the US healthcare expenditure. Chronic diseases are generally associated with ailments without any permanent cure which significantly affect the health status, lifestyle, mobility and longevity of patients. A variety of chronic disease management interventions have been deployed to h...
Empty container management is a critical managerial area that affects the profitability of the container industry. Multiple factors that include the trade imbalance, storage costs, tariffs, taxes, handling costs and cost of manufacturing new containers affect the flow of empty containers. Trade imbalance is generally known as the primary influencin...
Conference code: 104986, Export Date: 27 March 2018
Queuing System Model Components Simulation Methodology DES Example Hand Simulation—Spreadsheet Implementation Arena Simulation Conclusion References
Non-urgent Emergency Department utilization has been attributed with increasing congestion in the flow and treatment of patients
and, by extension, conditions the quality of care and profitability of the Emergency Department. Interventions designed to
divert populations to more appropriate care may be cautiously received by operations managers due...
Southeastern Virginia is expected to follow the national trend towards investment in renewable energy approaches as part of its electricity portfolio. The evolution in portfolio mix away from traditional methods, such as centralized nuclear and coal-fired generation, and towards cleaner- and renewable-source generation will impact public health. Th...
This research presents the findings from a recent comprehensive study of patients engaged in inappropriate Emergency Department utilization at a major urban trauma center. Through the use of in-depth interviews of over 1,800 patients by researchers and medical doctors, this research has identified and measured the key factors considered in the deci...
This research provides an explanation for intimate partner violence (IPV) among residents of a major urban region by examining the complexity of individual social networks and social capital. Objective: The research accomplishes two objectives, one methodological and the other substantive. First, through the development of unique weighted scales, t...
This research provides conceptual clarity both to the modeling of rally events in presidential politics by introducing the stimulus-cognitive response model and to the measurement of rally events by presenting the steps necessary for proper specification and empirical analysis using the time-series method. The utility of stimulus-cognitive response...
This research examines evidence of deterministic patterns in first term presidential approval scores, Eisenhower through Clinton. Rather than relying on single-presidency trend lines, approval is evaluated along the dimensions of volatility, buoyancy, and polarization. Borrowing from both the cumulative decision and psychological response explanati...
Research has advanced the expectation that black political mobilization will result not only in gains in black descriptive representation but also change in public policy. Under the premise that city employment is a substantive benefit, this article documents the relationships between mayoral leadership, minority descriptive representation on the c...
Typescript. Thesis (Ph. D.)--University of New Orleans, 2001. "A dissertation ... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Political Science." Vita. Includes bibliographical references (leaves 174-191).
