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Social and Behavioral Sciences Commons

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Full-Text Articles in Social and Behavioral Sciences

Economic Viability Of Weed Management Strategies In High-Tunnel Tomato, Gracie Morrison May 2022

Economic Viability Of Weed Management Strategies In High-Tunnel Tomato, Gracie Morrison

Crop, Soil and Environmental Sciences Undergraduate Honors Theses

Cost-effective weed suppression is an important consideration for tomato growers. Growers often choose methods which minimize hand labor, as hand weeding can be prohibitively expensive. This project determined economic viability of high tunnel tomatoes treated with several methods of weed control, both organic and chemical. These methods included: 2-week hand weeding, 1-week hand weeding, preemergent, straw, landscape fabric, and untreated weedy control plots. These treatments were applied to randomized blocks in a high-tunnel. Weeding, planting, and harvest were all timed to determine labor and material costs of weed management strategy implementation. After harvest, marketable yield was weighed to determine revenue. …


Preventative Weed Management Strategies In Arkansas Tomato Production, Gracie E. Morrison, Matthew Bertucci Jan 2022

Preventative Weed Management Strategies In Arkansas Tomato Production, Gracie E. Morrison, Matthew Bertucci

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Cost-effective weed suppression is an important consideration for tomato growers. Growers often choose methods which minimize hand labor, as hand weeding can be prohibitively expensive. This project determined economic viability of high tunnel tomatoes treated with several methods of weed control, both organic and chemical. These methods included: 2-week hand weeding, 1-week hand weeding, preemergent herbicide application (plots sprayed with herbicide prior to weed emergence), straw mulch (plots bedded with straw), landscape fabric (plots covered in fabric), and untreated weedy control plots. These six treatments were applied to randomized blocks in a high tunnel. Weeding, planting, and harvesting were all …


Cost-Benefit Analysis Of Enhanced Mentoring For Delinquency Prevention, Allison Smith May 2019

Cost-Benefit Analysis Of Enhanced Mentoring For Delinquency Prevention, Allison Smith

Graduate Theses and Dissertations

Youth with certain risk factors (e.g., from a minority group, low-income status, previous contact with the juvenile justice system) are particularly at risk for juvenile delinquency and associated problems (e.g., school failure, mental health problems). In addition, these problems are quite costly to youth, their families, and society as a whole. Mentoring programs have shown modest, but consistent, effects in the prevention and reduction of juvenile delinquency and associated problems. Previous research has identified promising enhancements (i.e., advocacy/teaching roles for mentors, rigorous match processes, comprehensive mentor training, ongoing mentor support) that may increase the effectiveness of mentoring in producing positive …


Modeling Economic Impacts Of The Inland Waterway Transportation System, Furkan Oztanriseven Aug 2016

Modeling Economic Impacts Of The Inland Waterway Transportation System, Furkan Oztanriseven

Graduate Theses and Dissertations

The inland waterway transportation system of the United States (U.S.) handles 11.7 billion tons of freight annually and connects the heartland of the U.S. with the rest of the world by providing a fuel-efficient and environmentally friendly mode of transportation. This dissertation aims to create decision support tools for maritime stakeholders to measure the economic impacts of the inland waterway transportation systems under real world scenarios including disruptions, demand changes, port expansion decisions, and channel deepening investments. Monte Carlo simulation, system dynamics, discrete-event simulation, agent-based modeling, and multiregional input-output modeling techniques are utilized to analyze the complex relationships between inland …