Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Agricultural Education|Content Preparation|Praxis II Exam|Content Knowledge|Pre-Service Teachers (1)
- Consumer Surplus of Trail Sites (1)
- Enzymatic hydrolysis|T. reesei|C. thermocellum|ELISA|cellulase activity (1)
- Equestrian Trail Characteristics (1)
- Phosphorus|Inositol Hexakisphosphate|Hydroxy-interlayered Vermiculite|Hydroxy-interlayered Smectite|Eutrophication (1)
Articles 1 - 6 of 6
Full-Text Articles in Entire DC Network
Precision Agriculture: Realizing Increased Profit And Reduced Risk Through Cost Map And Lightbar Adoption, Benjamin Michael Kayrouz
Precision Agriculture: Realizing Increased Profit And Reduced Risk Through Cost Map And Lightbar Adoption, Benjamin Michael Kayrouz
University of Kentucky Master's Theses
This thesis examines the use of two specific types of precision agriculture technologies: cost maps and lightbar. Cost maps visually depict spatial differences in production costs. The visual depictions of these costs are represented using ArcGIS in an attempt to aide farmers in further decision making. Results will show that cost maps have great possibilities in their addition to the set of tools that farmers use in decision making. This thesis will expand the understanding of lightbar from a partial budget study to a whole farm model incorporating competition across different enterprises for labor and capital. The results from the …
Content Preparation Of Pre-Service Agricultural Education Teachers And Its Influence On Their Content Knowledge, Amber Houck
Content Preparation Of Pre-Service Agricultural Education Teachers And Its Influence On Their Content Knowledge, Amber Houck
University of Kentucky Master's Theses
Content knowledge preparation for teachers is a crucial component of the modal curriculum model for education. The purpose of this study was to determine if the amount and quality of coursework preparation of pre-service University of Kentucky agriculture teachers influences their content knowledge as defined by the Praxis II agriculture exam scores. This study concluded that there was variability in coursework preparation of pre-service agriculture teachers at the University of Kentucky. Praxis II exam scores of pre-service teachers indicated that most students are meeting an adequate content knowledge level based on the exam material. It can also be concluded that …
Assessing The Demand For Weather Index Insurance In Shandong Province, China, Lisha Zhang
Assessing The Demand For Weather Index Insurance In Shandong Province, China, Lisha Zhang
University of Kentucky Master's Theses
Shandong Province, renowned as China’s greatest agricultural province, is dominated by smallholders growing rain-fed crops and vulnerable to severe weather shocks that can increase poverty rates. Weather index insurance, an innovative agricultural risk management product, may be an effective mechanism to address vulnerability to catastrophic weather risk in rural regions of China, including Shandong. This project evaluated current household livelihood and risk management strategies and farmer interest in weather index insurance. Data from 174 participants were collected using a methodology that included focus groups, questionnaires, and personal interviews. Despite limited access to formal financial services, Shandong farmers generally employ informal, …
An Analysis Of Kentucky Equestrian Trail Riders: Determining Rider Behaviors And Valuing Site Amenities That Contribute To Repeat Visits, Katharine Auchter
An Analysis Of Kentucky Equestrian Trail Riders: Determining Rider Behaviors And Valuing Site Amenities That Contribute To Repeat Visits, Katharine Auchter
University of Kentucky Master's Theses
The purpose of this travel cost study is to determine how rider behaviors and site characteristics influence repeat visits for equestrian trail riding in Kentucky. Primary data was collected via a survey developed and administered to trail riders in person and online. The average surveyed trail rider tends to be female, about 46 years old, with some higher education, and an annual household income of $65,000. She makes 11 trips to a specified site per year, 8 of which are daytrips, usually in the fall, and traveling 132 miles round trip. From other information gathered, an index of trail characteristics …
Inorganic And Organic Phosphorus Interactions With Hydroxy-Interlayered Soil Minerals, Paul D. Shumaker Ii
Inorganic And Organic Phosphorus Interactions With Hydroxy-Interlayered Soil Minerals, Paul D. Shumaker Ii
University of Kentucky Master's Theses
Phosphorus (P), a necessary plant and animal nutrient, can also lead to eutrophication of fresh waters when in excess. Appropriate P management is necessary to prevent fresh water pollution. Mineralogy of soil clays has been shown to affect P adsorption, desorption, and movement through soils. Specifically, hydroxy-interlayered minerals have been shown to adsorb and retain inorganic P in soil systems. This study was designed to determine the sorption and desorption characteristics of inorganic, organic, and mixed forms of P interacting with soil hydroxy-interlayered vermiculites (HIV) and smectites (HIS), and compare the findings to sorption and desorption processes of natural aluminum …
Quantifying Cellulase In High-Solids Environments, Alicia Renée Abadie
Quantifying Cellulase In High-Solids Environments, Alicia Renée Abadie
University of Kentucky Master's Theses
In recent years, fungal and bacterial cellulases have gained popularity for the conversion of lignocellulosic material to biofuels and biochemicals. This study investigated properties of fungal (Trichoderma. reesei) and bacterial (Clostridium thermocellum) cellulases. Enzymatic hydrolysis was carried out with T. reesei using nine enzyme concentration and substrate combinations. Initial rates and extents of hydrolysis were determined from the progress curve of each combination. Inhibition occurred at the higher enzyme concentrations and higher solids concentrations. Mechanisms to explain the observed inhibition are discussed. Samples of C. thermocellum purified free cellulase after 98% hydrolysis were assayed to determine …