Virtual tours are among the many new Internet-based tools with potential applications as continuing forestry education programs. While technology exists to create virtual tour websites, little is understood about how well they meet educational objectives and whether they are complementary alternatives to traditional field tours. The Sustainable Forestry Partnership and...
Today's office worker is being expected to operate computers in order to
increase office productivity. While learning the new technology is a positive
challenge for most people, some students experience a negative computer
attitude when faced with computer training. This study sought to determine if
there were significant differences about...
This study describes Extension field staff orientations toward
poverty. Expressions on origins, solutions and definitions of poverty
were elicited from informants. Responses were then classified by
categories, coded and analyzed using the Statistical Interactive Programming
System (SIPS). Orientations were then measured by identifying
modal categories. A category was identified as...
The purpose of this study was to compare and describe
test score differences on the Woodcock Psycho-Educational
Battery in Spanish (BATERIA) and the Wechsler Intelligence
Scale for Children--Revised Mexican version (WISC-RM).
Analyses were performed on the two test batteries, investigating
mean score differences on the different clusters as
a function...
Carbon tetrachloride (CT) and chloroform (CF) were transformed in batch reactor experiments conducted with anaerobic dechlorinating cultures and supernatant (ADC+S) harvested from continuous flow reactors. The Evanite (EV-5L) and Victoria/Stanford (VS-5L) cultures capable of respiring trichloroethene (TCE), 1,2-cis-dichloroethene (cDCE), and vinyl chloride (VC) to ethene (ETH) were grown in continuous...
This research focused on anaerobic transformation of trichloroethene (TCE), a
groundwater contaminant. The mixed anaerobic Evanite culture (EV) was studied to determine community behavior and composition responses to different electron donors and chloroethene electron acceptors. The potential toxicity from high concentrations of TCE and its daughter product cis-1,2-dichloroethene (cDCE) was...
1,4-Dioxane (dioxane) and cis-dichloroethylene (cDCE) are compounds commonly found in industrial cleaning and degreasing agents that are frequently present as groundwater contaminants. In an effort to develop a more effective treatment method for these compounds, hydrogel beads were fabricated with either gellan gum or a combination of polyvinyl alcohol (PVA)...
Chlorinated ethenes are common groundwater contaminants that may be treated through in-situ bioremediation. Relationships between the reducing environment, available electron donors and acceptors, reaction kinetics, and microbial community composition must be further understood to successfully engineer remediation schemes in the complex subsurface environment. This thesis work investigated the effect of...