Recovery of the Fish Population of a Municipal Wastewater Dominated, North Texas Creek After a Major Chlorine Disturbance (open access)

Recovery of the Fish Population of a Municipal Wastewater Dominated, North Texas Creek After a Major Chlorine Disturbance

This study evaluated the effects of a major chlorine disturbance on fish communities in Pecan creek by the City of Denton's Pecan Creek Water Reclamation Plant. Fish communities in Pecan Creek were sampled using a depletion methodology during February, April, July, and November, 1999. February and April sampling events showed that the fish communities were severely impacted by the chlorine. Sampling during July and November showed fish communities recovered in Pecan Creek. The first-twenty minutes of shocking and seining data were analyzed to mirror an equal effort methodology. This methodology was compared to the depletion methodology to see if the equal effort methodology could adequately monitor the recovery of Pecan Creek after the chlorine disturbance. It was determined that the equal effort methodology was capable of monitoring the recovery of Pecan Creek, but could not accurately represent the fisheries community as well as the depletion method. These data using the twenty-minute study were compared to a previous study. Results of this study were similar to those found in a previous study, although fish communities were more severely impacted and took longer to recover.
Date: August 2002
Creator: Maschmann, Gerald F.
System: The UNT Digital Library
Assessing the Spatial and Temporal Distribution of MTBE and BTEX Compounds in Lake Lewisville, Texas February 1999 - February 2000 (open access)

Assessing the Spatial and Temporal Distribution of MTBE and BTEX Compounds in Lake Lewisville, Texas February 1999 - February 2000

The spatial and temporal distribution of Methyl Tertiary-Butyl Ether (MTBE) and BTEX (Benzene, Toluene, Ethylbenzene, Xylenes) compounds were assessed in a multipurpose reservoir, Lake Lewisville, Texas between February 1999 and February 2000. Concentrations of MTBE ranged from 0.0 - 16.7 mg/L. Levels of MTBE in the lake were related to watercraft. BTEX concentrations were never detected above 2.0 mg/L during the sampling period. Finished drinking water from Denton and the Upper Trinity Regional Water District (UTRWD) Treatment Plants were also tested for MTBE and BTEX. MTBE and BTEX were not detected in UTRWD water samples. Denton's finished water samples never exceeded 2.2 mg/L for MTBE and BTEX was not detected except for one replicate of 1.1 mg/L toluene.
Date: August 2000
Creator: Lee, Anne W.
System: The UNT Digital Library

Characterizing the Municipal Solid Waste Stream in Denton, Texas

Access: Use of this item is restricted to the UNT Community
Forty-two commercially collected dumpsters from Denton’s Municipal Solid Waste Stream were emptied, sorted and weighed to characterize the material types and make preliminary recycling policy recommendations. The general composition of Denton’s solid waste stream was not significantly different from the composition of the nation’s solid waste stream. Fifty-eight percent of the observed waste stream was recyclable. Paper made up the largest portion of recyclable materials and the "grocery" source category had more paper than any of the other five categories. Based on these findings, an incrementally aggressive approach is recommended to reduce certain types of wastes observed in the waste stream. This would include a Pay-As-You-Throw Program followed by an Intermediate Processing Center that can be converted to a Materials Recovery Facility.
Date: August 2000
Creator: Brady, Patricia D.
System: The UNT Digital Library
Assistive Technology Use by Students with Disabilities at UNT (open access)

Assistive Technology Use by Students with Disabilities at UNT

Honors thesis written by a student in the UNT Honors College discussing assertive technologies used by students with physical disabilities. Topics include frequently used devices, services of the Office of Disability Accommodation, and the quality of students' training with these devices.
Date: Spring 2007
Creator: Chabot, Monique
System: The UNT Digital Library
On Your Knees or at the Bar: A Study on Religiosity and Alcohol Use at the University of North Texas (open access)

On Your Knees or at the Bar: A Study on Religiosity and Alcohol Use at the University of North Texas

Honors thesis written by a student in the UNT Honors College discussing the relationships between religiosity, spirituality, and alcohol use by 18-25 year old students at the University of North Texas.
Date: Spring 2007
Creator: Chase, Rebekah
System: The UNT Digital Library
Measuring Decentering and Attachment in a University Clinical Sample (open access)

Measuring Decentering and Attachment in a University Clinical Sample

Thesis written by a student in the UNT Honors College discussing the relationship between decenter and attachment among clients from the Psychology Clinic at the University of North Texas.
Date: Autumn 2007
Creator: Perez, Luis E.
System: The UNT Digital Library
Actigraphy, Sleep Diaries and Polysomnography in College Students with Insomnia (open access)

Actigraphy, Sleep Diaries and Polysomnography in College Students with Insomnia

Thesis written by a student in the UNT Honors College discussing the use of actigraphy on college students to measure the number of awakenings, wake after sleep onset, total sleep time, and sleep efficiency.
Date: Autumn 2007
Creator: Williams, Jacob M.
System: The UNT Digital Library
Caring for Indigent Children in Denton County in Relation to Dallas and Tarrant Counties in Texas (open access)

Caring for Indigent Children in Denton County in Relation to Dallas and Tarrant Counties in Texas

Thesis written by a student in the UNT Honors College discussing health care of people without health insurance in Denton County, Texas.
Date: Spring 2008
Creator: Grant, Scott
System: The UNT Digital Library
KNTU: A History (open access)

KNTU: A History

Thesis written by a student in the UNT Honors College discussing the history of radio station KNTU.
Date: Spring 2003
Creator: Thomson, Levi
System: The UNT Digital Library