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Articles 1 - 16 of 16
Full-Text Articles in Social and Behavioral Sciences
Using Systems Archetypes And Generic Structures To Support Water Resource Management Studies : The Case Of Cropping Pattern Change In New Mexico State, Babak Bahaddin
Legacy Theses & Dissertations (2009 - 2024)
A wide range of managerial problems are similar in nature, and yet they continuously appear in different forms and in different geographical locations. Compared to other sciences, it seems that in the field of management, managers have a hard time facing these similar problems. Part of this issues is caused by the extreme complexity of the systems and another part is caused by the lack of a universal language with which managers can communicate their lessons. This dissertation offers a set of tools that have been previously manufactured in systems science, and more specifically in System Dynamics.
Assessing The Economic Viability Of Arkansas Farms Under The 2018 Farm Bill, Grant Wilson
Assessing The Economic Viability Of Arkansas Farms Under The 2018 Farm Bill, Grant Wilson
Graduate Theses and Dissertations
For over a century, the American agricultural industry has relied on federal government support to aid in the maintenance and expansion of farming operations. Since 1933, a series of 18 farm bills have shaped agricultural policy into what is commonly known as the agricultural safety net. The 2018 farm bill was passed on December 20, 2018 and is the most recent update of the agricultural safety net. Commodity programs and federal crop insurance are two key components of today’s agricultural safety net, and many times, these programs may be the difference between a net loss and a positive net income …
“It’S The Story”: Online Animated Simulation Of Cultural Competence Of Poverty -- A Pilot Study, Kimberly E. Johnson, Melissa Fleck, Thomas Pantazes
“It’S The Story”: Online Animated Simulation Of Cultural Competence Of Poverty -- A Pilot Study, Kimberly E. Johnson, Melissa Fleck, Thomas Pantazes
Internet Journal of Allied Health Sciences and Practice
Purpose: In this pilot study, researchers explore an online animated simulation as an educational tool for emerging health professionals to promote cultural competence of poverty, food insecurity, and the Supplemental Nutrition Assistance Program.Methods: Researchers recruited participants in the allied health sciences for focus groups to explore the effectiveness of an online animation in promoting cultural competence of poverty, food insecurity, and public assistance programs. Participants were asked about their experience with the educational tool and changes in cultural competence regarding poverty, food insecurity, and the Supplemental Nutrition Assistance Program. Participants also responded to five survey questions about their experience …
Evaluating And Reducing The Effects Of Misclassification In A Sequential Multiple Assignment Randomized Trial (Smart), Jun He
Theses and Dissertations
SMART designs tailor individual treatment by re-randomizing patients to subsequent therapies based on their response to initial treatment. However, the classification of patients being responders/non-responders could be inaccurate and thus lead to inappropriate treatment assignment. In a two-step SMART design, by assuming equal randomization, and equal variances of misclassified patients and correctly classified patients, we evaluated misclassification effects on mean, variance, and type I error/ power of single sequential treatment outcome (SST), dynamic treatment outcome (DTRs), and overall outcome. The results showed that misclassification could introduce bias to estimates of treatment effect in all types of outcome. Though the magnitude …
Facilitating And Enhancing Biomedical Knowledge Translation: An In Silico Approach To Patient-Centered Pharmacogenomic Outcomes Research, Kourosh Ravvaz
Facilitating And Enhancing Biomedical Knowledge Translation: An In Silico Approach To Patient-Centered Pharmacogenomic Outcomes Research, Kourosh Ravvaz
Theses and Dissertations
Current research paradigms such as traditional randomized control trials mostly rely on relatively narrow efficacy data which results in high internal validity and low external validity. Given this fact and the need to address many complex real-world healthcare questions in short periods of time, alternative research designs and approaches should be considered in translational research. In silico modeling studies, along with longitudinal observational studies, are considered as appropriate feasible means to address the slow pace of translational research. Taking into consideration this fact, there is a need for an approach that tests newly discovered genetic tests, via an in silico …
Simulation In Dietetic Education In Australia, Peter Williams, Eleanor Beck
Simulation In Dietetic Education In Australia, Peter Williams, Eleanor Beck
Peter Williams
In 2011 the Dietitians Association of Australia conducted a survey of simulated learning experiences in all universities offering dietetic course in Australia. A total of 35 SLEs currently used were identified: 14 paper-based, 15 physical-based and 6 computer or video based.
Geant4 Physics Processes For Microdosimetry Simulation: Design Foundation And Implementation Of The First Set Of Models, S. Chauvie, Z. Francis, S. Guatelli, S. Incerti, B. Mascialino, P. Moretto, P. Nieminen, Maria Pia
Geant4 Physics Processes For Microdosimetry Simulation: Design Foundation And Implementation Of The First Set Of Models, S. Chauvie, Z. Francis, S. Guatelli, S. Incerti, B. Mascialino, P. Moretto, P. Nieminen, Maria Pia
Susanna Guatelli
New physical processes specific for microdosimetry simulation are under development in the Geant4 Low Energy Electromagnetic package. The first set of models implemented for this purpose cover the interactions of electrons, protons and light ions in liquid water; they address a physics domain relevant to the simulation of radiation effects in biological systems, where water represents an important component. The design developed for effectively handling particle interactions down to a low energy scale and the physics models implemented in the first public release of the software are described.
Simulation In Dietetic Education In Australia, Peter Williams, Eleanor Beck
Simulation In Dietetic Education In Australia, Peter Williams, Eleanor Beck
Faculty of Health and Behavioural Sciences - Papers (Archive)
In 2011 the Dietitians Association of Australia conducted a survey of simulated learning experiences in all universities offering dietetic course in Australia. A total of 35 SLEs currently used were identified: 14 paper-based, 15 physical-based and 6 computer or video based.
A Comparison Of The Effect Of Mobile Phone Use And Alcohol Consumption On Driving Simulation Performance, Sumie Leung, Rodney J. Croft, Melinda L. Jackson, Mark E. Howard, Raymond J. Mckenzie
A Comparison Of The Effect Of Mobile Phone Use And Alcohol Consumption On Driving Simulation Performance, Sumie Leung, Rodney J. Croft, Melinda L. Jackson, Mark E. Howard, Raymond J. Mckenzie
Faculty of Health and Behavioural Sciences - Papers (Archive)
Objective: The present study compared the effects of a variety of mobile phone usage conditions to different levels of alcohol intoxication on simulated driving performance and psychomotor vigilance. Methods: Twelve healthy volunteers participated in a crossover design in which each participant completed a simulated driving task on 2 days, separated by a 1-week washout period. On the mobile phone day, participants performed the simulated driving task under each of 4 conditions: no phone usage, a hands-free naturalistic conversation, a hands-free cognitively demanding conversation, and texting. On the alcohol day, participants performed the simulated driving task at four different blood alcohol …
Evaluation Of Capital Investment And Cash Flows For Alternative Switchgrass Feedstock Supply Chain Configurations, Jie Chen
Masters Theses
Biofuels have been widely recognized as a potential renewable energy source, and the United States’ government has been interested in producing ethanol from lignocellulosic biomass such as switchgrass. To evaluate whether lignocellulosic biomass based biofuels production is economically feasible, this paper estimated the capital investment outlays, operation costs, and net present value for investment in alternative switchgrass feedstock supply chain configurations in East Tennessee a 25 million gallon per year ethanol biorefinery. Two scenarios are analyzed in the study. The conventional hay harvest scenario includes the production, harvest, storage and transportation of biomass feedstocks from the fields to the biorefinery. …
Why Model Landscapes At The Level Of Households And Fields?, Jerome K. Vanclay
Why Model Landscapes At The Level Of Households And Fields?, Jerome K. Vanclay
Professor Jerome K Vanclay
Sustainable resource management relies upon many disciplines and deals with complex interactions at the landscape scale. Many of the issues at the landscape scale arise from decisions taken at the household level and affect land use in fields and in small patches of forest. Spatially-explicit modelling of these units is desirable because it enables rigorous testing of model predictions, and thus of underlying propositions. The greatest insights may be obtained by participatory modelling of these processes as we understand them. Despite this, few models simulate dynamics at the household and field level. FLORES, the Forest Land Oriented Resource Envisioning System, …
Geant4 Physics Processes For Microdosimetry Simulation: Design Foundation And Implementation Of The First Set Of Models, S. Chauvie, Z. Francis, S. Guatelli, S. Incerti, B. Mascialino, P. Moretto, P. Nieminen, Maria G. Pia
Geant4 Physics Processes For Microdosimetry Simulation: Design Foundation And Implementation Of The First Set Of Models, S. Chauvie, Z. Francis, S. Guatelli, S. Incerti, B. Mascialino, P. Moretto, P. Nieminen, Maria G. Pia
Faculty of Health and Behavioural Sciences - Papers (Archive)
New physical processes specific for microdosimetry simulation are under development in the Geant4 Low Energy Electromagnetic package. The first set of models implemented for this purpose cover the interactions of electrons, protons and light ions in liquid water; they address a physics domain relevant to the simulation of radiation effects in biological systems, where water represents an important component. The design developed for effectively handling particle interactions down to a low energy scale and the physics models implemented in the first public release of the software are described.
The Interaction Of Transcutaneous Heating And Helicopter Flight Simulation Performance, Joanne N. Caldwell, Mark J. Patterson, Nigel A.S Taylor
The Interaction Of Transcutaneous Heating And Helicopter Flight Simulation Performance, Joanne N. Caldwell, Mark J. Patterson, Nigel A.S Taylor
Faculty of Health and Behavioural Sciences - Papers (Archive)
It is well known that elevations in body temperature can impair both physical and cognitive performance. For helicopter pilots, the major heat source during flight originates from solar radiation. However, when nuclear, biological and chemical (NBC) protective clothing is worn, metabolic heat generated during the pre-flight period, and during the mission, is trapped, exacerbating thermal strain. In this project, the hypothesis that elevations in body heat content would degrade flight performance was tested. Helicopter pilots completed three, two-hour flight simulations under three levels of thermal strain, administered in a balanced order. Thermal strain was induced using a water-perfusion gannent, worn …
On The Transferability Of The Spcal Water Model To Biomolecular Simulation, Alice Glaettli, Chris Oostenbrink, Xavier Daura, Daan Geerke, Haibo Yu, Wilfred Van Gunsteren
On The Transferability Of The Spcal Water Model To Biomolecular Simulation, Alice Glaettli, Chris Oostenbrink, Xavier Daura, Daan Geerke, Haibo Yu, Wilfred Van Gunsteren
Faculty of Science - Papers (Archive)
We investigated the performance of the recently developed SPC/L model for liquid water, as a pure liquid, in binary mixtures with DMSO, and as a solvent model in a peptide folding simulation. Additionally, in order to test the compatibility with the GROMOS biomolecular force field, free energies of hydration of a set of representative compounds were computed. The results are compared to those for the well established SPC water model, which is generally used as a solvent model in conjunction with the GROMOS force field already for more than two decades. It turns out that as a pure liquid and …
Why Model Landscapes At The Level Of Households And Fields?, Jerome K. Vanclay
Why Model Landscapes At The Level Of Households And Fields?, Jerome K. Vanclay
Professor Jerome K Vanclay
Sustainable resource management relies upon many disciplines and deals with complex interactions at the landscape scale. Many of the issues at the landscape scale arise from decisions taken at the household level and affect land use in fields and in small patches of forest. Spatially-explicit modelling of these units is desirable because it enables rigorous testing of model predictions, and thus of underlying propositions. The greatest insights may be obtained by participatory modelling of these processes as we understand them. Despite this, few models simulate dynamics at the household and field level. FLORES, the Forest Land Oriented Resource Envisioning System, …
Molecular Dynamics Simulation Of Biomolecular Systems, Wilfred Van Gunsteren, Dirk Bakowies, Roland Buergi, Indira Chandrasekhar, Markus Christen, Xavier Daura, Peter Gee, Alice Glaettli, Tomas Hansson, Chris Oostenbrink, Christine Peter, Jed Pitera, Lukas Schuler, Thereza Soares, Haibo Yu
Molecular Dynamics Simulation Of Biomolecular Systems, Wilfred Van Gunsteren, Dirk Bakowies, Roland Buergi, Indira Chandrasekhar, Markus Christen, Xavier Daura, Peter Gee, Alice Glaettli, Tomas Hansson, Chris Oostenbrink, Christine Peter, Jed Pitera, Lukas Schuler, Thereza Soares, Haibo Yu
Faculty of Science - Papers (Archive)
The group for computer-aided chemistry at the ETH Zurich focuses its research on the development of methodology to simulate the behavior of biomolecular systems and the use of simulation techniques to analyze and understand biomolecular processes at the atomic level. Here, the current research directions are briefly reviewed and illustrated with a few examples.