Search

Search Results

• 1. [Article] High Definition Manufacturing Cell Model

  The purpose was to study the capacity, staffing requirements and alternative equipment configurations. This presentation provides a preview of the results.

  Citation × Citation Citation Abstract Copy Title: High Definition Manufacturing Cell Model Author: Wakeland, Wayne, Leupold & Stevens, Inc. Year: 2002 The purpose was to study the capacity, staffing requirements and alternative equipment configurations. This presentation provides a preview of the results. Title: High Definition Manufacturing Cell Model Author: Wakeland, Wayne, Leupold & Stevens, Inc. Year: 2002 The purpose was to study the capacity, staffing requirements and alternative equipment configurations. This presentation provides a preview of the results. Close

• 2. [Article] Integrating Economics and System Dynamics Approaches for Modeling an Ecological-Economic System

  This article describes collaboration between system dynamicists and economists to model a multi-sector, ecological-economic model of population and resource dynamics that is firmly based on economic theory ...

  Citation × Citation Citation Abstract Copy Title: Integrating Economics and System Dynamics Approaches for Modeling an Ecological-Economic System Author: Uehara, Takuro, Nagase, Yoko, Wakeland, Wayne Year: 2013 This article describes collaboration between system dynamicists and economists to model a multi-sector, ecological-economic model of population and resource dynamics that is firmly based on economic theory and leverages the strengths of both fields. This model illuminates how an SD approach allows model complexity to be extended in order to effectively model interactions between an economic system and an ecological system. Specifically, the simulation exercise demonstrates how SD model analysis can help explain the counterintuitive model behaviors due to increases in the natural resource carrying capacity or regeneration rate. The simulation results also reveal that allowing for out-of-equilibrium states (adaptation) significantly impacts the dynamics of ecological economic systems, a point often neglected in the economics literature. These findings, while familiar to system dynamicists, highlight the potential for SD to contribute to other disciplines, including economics. Title: Integrating Economics and System Dynamics Approaches for Modeling an Ecological-Economic System Author: Uehara, Takuro, Nagase, Yoko, Wakeland, Wayne Year: 2013 This article describes collaboration between system dynamicists and economists to model a multi-sector, ecological-economic model of population and resource dynamics that is firmly based on economic theory and leverages the strengths of both fields. This model illuminates how an SD approach allows model complexity to be extended in order to effectively model interactions between an economic system and an ecological system. Specifically, the simulation exercise demonstrates how SD model analysis can help explain the counterintuitive model behaviors due to increases in the natural resource carrying capacity or regeneration rate. The simulation results also reveal that allowing for out-of-equilibrium states (adaptation) significantly impacts the dynamics of ecological economic systems, a point often neglected in the economics literature. These findings, while familiar to system dynamicists, highlight the potential for SD to contribute to other disciplines, including economics. Close

• 3. [Article] A System Dynamics Model of the Pacific Coast Rockfish Fishery

  This paper presents a model of the dynamic behavior of the yellowtail rockfish of the Pacific Coast of the United States. The purpose of the model is to generate endogenously the historical data for fish ...

  Citation × Citation Citation Abstract Copy Title: A System Dynamics Model of the Pacific Coast Rockfish Fishery Author: Wakeland, Wayne, Cangur, Olgay, Rueda, Guillermo, Scholz, Astrid Year: 2003 This paper presents a model of the dynamic behavior of the yellowtail rockfish of the Pacific Coast of the United States. The purpose of the model is to generate endogenously the historical data for fish population, fishing vessels, regulatory parameters, and fish harvest. The model was subjected to a variety of tests to determine its sensitivity to changes in key parameters and initial values, including extreme conditions. Model results indicate that acceptable biological catch and fleet capacity must be adjusted quickly in response to changing conditions, in order to improve fishery sustainability. Additional analysis reinforces the policy of setting the maximum sustainable yield at 40%. Title: A System Dynamics Model of the Pacific Coast Rockfish Fishery Author: Wakeland, Wayne, Cangur, Olgay, Rueda, Guillermo, Scholz, Astrid Year: 2003 This paper presents a model of the dynamic behavior of the yellowtail rockfish of the Pacific Coast of the United States. The purpose of the model is to generate endogenously the historical data for fish population, fishing vessels, regulatory parameters, and fish harvest. The model was subjected to a variety of tests to determine its sensitivity to changes in key parameters and initial values, including extreme conditions. Model results indicate that acceptable biological catch and fleet capacity must be adjusted quickly in response to changing conditions, in order to improve fishery sustainability. Additional analysis reinforces the policy of setting the maximum sustainable yield at 40%. Close

• 4. [Article] Data Sources Regarding the Nonmedical Use of Pharmaceutical Opioids in the United States

  Objective—Recent increases in the nonmedical use of pharmaceutical opioids and the adverse outcomes associated with them have stimulated a large amount of research and data collection on this public health ...

  Citation × Citation Citation Abstract Copy Title: Data Sources Regarding the Nonmedical Use of Pharmaceutical Opioids in the United States Author: Schmidt, Teresa D., Zimam, Amanuel, Nielsen, Alexandra, Wakeland, Wayne Year: 2014 Objective—Recent increases in the nonmedical use of pharmaceutical opioids and the adverse outcomes associated with them have stimulated a large amount of research and data collection on this public health problem. Systematic organization of the available data sources is needed to facilitate ongoing research, analysis, and evaluation. This work offers a systematic categorization of data sources regarding the nonmedical use of pharmaceutical opioids in the United States. Methods—A list of keywords regarding the nonmedical use of pharmaceutical opioids was used to conduct systematic searches in PubMed®. Filtration of search results generated 92 peer-reviewed academic articles, published between January 1995 and April 2012, as well as a number of primary data sources. Lists of topics were developed independently by two researchers which were later compared and consolidated. All sources were then categorized according to their relevance to each of these topics and according to their capacity for geographical and longitudinal trend analysis. Results—Tables cataloging data sources can be used to identify data relevant to specific topics in diversion, nonmedical use, and adverse outcomes associated with pharmaceutical opioids, and they illustrate global trends in data coverage, identifying several topics that have minimal data. A network diagram illustrates global trends in data coverage, showing variation among sources in the number of topics they cover, as well as variation among topics in the number of sources that cover them. Conclusions—The categorization of data sources is hoped to facilitate ongoing research, analysis, and evaluation of this public health problem by serving as a guide for researchers, policy makers, and others who seek data regarding the nonmedical use of pharmaceutical opioids in the United States. Title: Data Sources Regarding the Nonmedical Use of Pharmaceutical Opioids in the United States Author: Schmidt, Teresa D., Zimam, Amanuel, Nielsen, Alexandra, Wakeland, Wayne Year: 2014 Objective—Recent increases in the nonmedical use of pharmaceutical opioids and the adverse outcomes associated with them have stimulated a large amount of research and data collection on this public health problem. Systematic organization of the available data sources is needed to facilitate ongoing research, analysis, and evaluation. This work offers a systematic categorization of data sources regarding the nonmedical use of pharmaceutical opioids in the United States. Methods—A list of keywords regarding the nonmedical use of pharmaceutical opioids was used to conduct systematic searches in PubMed®. Filtration of search results generated 92 peer-reviewed academic articles, published between January 1995 and April 2012, as well as a number of primary data sources. Lists of topics were developed independently by two researchers which were later compared and consolidated. All sources were then categorized according to their relevance to each of these topics and according to their capacity for geographical and longitudinal trend analysis. Results—Tables cataloging data sources can be used to identify data relevant to specific topics in diversion, nonmedical use, and adverse outcomes associated with pharmaceutical opioids, and they illustrate global trends in data coverage, identifying several topics that have minimal data. A network diagram illustrates global trends in data coverage, showing variation among sources in the number of topics they cover, as well as variation among topics in the number of sources that cover them. Conclusions—The categorization of data sources is hoped to facilitate ongoing research, analysis, and evaluation of this public health problem by serving as a guide for researchers, policy makers, and others who seek data regarding the nonmedical use of pharmaceutical opioids in the United States. Close