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Simulating Thermal and Chemical Spills in Coupled Cooling Reservoirs (open access)

Simulating Thermal and Chemical Spills in Coupled Cooling Reservoirs

Hot water discharges and potential chemical spills are factors that threaten water quality in cooling reservoirs of chemical and power plants. In this thesis, three models are used to analyze the impact of these factors in a particular case study.
Date: August 1997
Creator: Qiu, Bin
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Genetic Interest Assessment (open access)

Genetic Interest Assessment

Genetics is becoming increasingly integrated into peoples' lives. Different measures have been taken to try and better genetics education. This thesis examined undergraduate students at the University of North Texas not majoring in the life sciences interest in genetic concepts through the means of a Likert style survey. ANOVA analysis showed there was variation amongst the interest level in different genetic concepts. In addition age and lecture were also analyzed as contributing factors to students' interest. Both age and lecture were evaluated to see if they contributed to the interest of students in genetic concepts and neither showed statistical significance. The Genetic Interest Assessment (GIA) serves to help mediate the gap between genetic curriculum and students' interest.
Date: May 2013
Creator: Doughney, Erin
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Post-impoundment Study of Ray Roberts Lake Year-Ten (open access)

Post-impoundment Study of Ray Roberts Lake Year-Ten

"This report is the final chapter of a long-term project to assess the environmental impacts associated with the construction and operation of Ray Roberts Lake during its first ten years" (p. ii). The purpose of the study is "to improve understanding of the impact of [U.S. Army Corps of Engineers] water resource projects, to provide the basis for evaluating the projects' effects on fish and wildlife resources, and to provide the opportunity for better planning and development of water resource projects and natural resource management" in the Lake Ray Roberts area, located in Denton County, Texas (p. 3).
Date: December 1999
Creator: University of North Texas. Institute of Applied Sciences.
Object Type: Report
System: The UNT Digital Library
Aquatic Ecological Classification and Evaluation of Streams and Stream Reaches in the Upper Roanoke River Basin, Virginia (open access)

Aquatic Ecological Classification and Evaluation of Streams and Stream Reaches in the Upper Roanoke River Basin, Virginia

The purpose of this study is to "establish a data base and methodology for classifying...the streams of the Roanoke Basin into a hierarchy of ecological systems" and to "establish evaluative criteria and methodology for classifying and ranking streams within the ecological systems relative to their state of environmental quality" (p. R1).
Date: March 30, 1979
Creator: North Texas State University. Institute of Applied Sciences.
Object Type: Report
System: The UNT Digital Library
Toxicological Case Study of Dallas' Central Wastewater Treatment Plant Effluent and Ambient Trinity River Samples: 1989, 1990, 1991 (open access)

Toxicological Case Study of Dallas' Central Wastewater Treatment Plant Effluent and Ambient Trinity River Samples: 1989, 1990, 1991

"This study was implemented voluntarily by personnel at Dallas Water Utilities in response to concerns that the Dallas Central Wastewater Treatment Plant was adversely affecting downstream water quality." The treatment plant was studied to determine whether it was "discharging toxic materials in toxic amounts to the Trinity River" (p. 1).
Date: 1991
Creator: University of North Texas. Institute of Applied Sciences.
Object Type: Book
System: The UNT Digital Library
A Water Quality and Ecological Survey of the Trinity River, Volume 2 (open access)

A Water Quality and Ecological Survey of the Trinity River, Volume 2

This volume of the report represents the technical findings of a study conducted on the ecological makeup of the Trinity River. The data presented includes: ambient toxicity test results and survival rates, United States Geological Survey (USGS) flow data, water quality data, as well as sediment quality data.
Date: November 1989
Creator: University of North Texas. Institute of Applied Sciences.
Object Type: Report
System: The UNT Digital Library
Technical Memorandum: Lewisville Lake Watershed Protection & Management Strategies (open access)

Technical Memorandum: Lewisville Lake Watershed Protection & Management Strategies

This report represents the findings of a study which "assessed the viability of the Water Quality Corridor Management (WQCM) model in reviewing the status of stream systems, and ultimately, established an accurate mechanism for evaluating the stream corridor and surface water quality draining into Lewisville Lake" (p. 1).
Date: September 2007
Creator: University of North Texas. Institute of Applied Sciences.
Object Type: Report
System: The UNT Digital Library
Historic Archaeology of the Johnson and Jones Farmsteads in the Ray Roberts Lake Area: 1850-1950 (open access)

Historic Archaeology of the Johnson and Jones Farmsteads in the Ray Roberts Lake Area: 1850-1950

This study represents the findings of research done on the Jones and Johnson farms, "situated in Johnson Branch Park in the north-central portion of the Ray Roberts Lake area." The purpose of the study was to offset future disturbances and damages to these farmsteads, and it includes "archival investigations, architectural documentation, oral-history interviews of long-time area residents and family members, farm equipment and artifact analyses, archaeological excavations, stabilization measures, and the development of interpretative exhibits for area schools, museums, and the general public" (p. i).
Date: 1996
Creator: University of North Texas. Institute of Applied Sciences.
Object Type: Book
System: The UNT Digital Library
Adaptación de un modelo de claros para el estudio de la dinámica de un bosque estacional en los llanos occidentales de Venezuela (open access)

Adaptación de un modelo de claros para el estudio de la dinámica de un bosque estacional en los llanos occidentales de Venezuela

Article discussing the adaptation of a gap model to the study of the dynamics of a seasonal forest in the western plains of Venezuela.
Date: 2010
Creator: Angulo, Hirma Ramírez; Acevedo, Miguel F.; Ataroff, Michele & Torres-Lezama, Armando
Object Type: Article
System: The UNT Digital Library
Propuesta metodológica para el control de calidad de datos de precipitación (open access)

Propuesta metodológica para el control de calidad de datos de precipitación

Article discussing a methodological proposal for the quality control of precipitation data.
Date: 2008
Creator: Ablan, Magdiel; Andressen, Rigoberto; Vargas, Mary Pili & Acevedo, Miguel F.
Object Type: Article
System: The UNT Digital Library
Interdisciplinary progress in food production, food security and environment research (open access)

Interdisciplinary progress in food production, food security and environment research

Article discussing interdisciplinary progress in food production, food security and environment research.
Date: 2011
Creator: Acevedo, Miguel F.
Object Type: Article
System: The UNT Digital Library
Pre-impoundment Environmental Study of Ray Roberts Lake (open access)

Pre-impoundment Environmental Study of Ray Roberts Lake

"This report presents the results of the pre-impoundment investigations" of Ray Roberts Lake. The purpose of the study is "to improve understanding of the impact of [U.S. Army Corps of Engineers] water resource projects, to provide the basis for evaluating the projects' effects on fish and wildlife resources, and to provide the opportunity for better planning and development of water resource projects and natural resource management" in the Lake Ray Roberts area, located in Denton County, Texas (p. 3).
Date: December 1987
Creator: University of North Texas. Institute of Applied Sciences.
Object Type: Book
System: The UNT Digital Library
Pre-impoundment Environmental Study of Ray Roberts Lake (open access)

Pre-impoundment Environmental Study of Ray Roberts Lake

"This report presents the results of the pre-impoundment investigations" of Ray Roberts Lake. The purpose of the study is "to improve understanding of the impact of [U.S. Army Corps of Engineers] water resource projects, to provide the basis for evaluating the projects' effects on fish and wildlife resources, and to provide the opportunity for better planning and development of water resource projects and natural resource management" in the Lake Ray Roberts area, located in Denton County, Texas (p. 3).
Date: May 1988
Creator: University of North Texas. Institute of Applied Sciences.
Object Type: Report
System: The UNT Digital Library
Post-impoundment Study of Ray Roberts Lake Year-Six (open access)

Post-impoundment Study of Ray Roberts Lake Year-Six

"This report presents the results of investigations conducted six years following the impoundment of Ray Roberts Lake." The purpose of the study is "to improve understanding of the impact of [U.S. Army Corps of Engineers] water resource projects, to provide the basis for evaluating the projects' effects on fish and wildlife resources, and to provide the opportunity for better planning and development of water resource projects and natural resource management" in the Lake Ray Roberts area, located in Denton County, Texas (p. 3).
Date: December 1995
Creator: University of North Texas. Institute of Applied Sciences.
Object Type: Report
System: The UNT Digital Library
Assessing potential impacts of CO2 - and deforestation - induced climate change on maize and black bean in Venezuela (open access)

Assessing potential impacts of CO2 - and deforestation - induced climate change on maize and black bean in Venezuela

Article on assessing potential impacts of CO2 and deforestation induced climate change on maize and black bean in Venezuela.
Date: 1995
Creator: Acevedo, Miguel F.; Jaimez, Ramón E.; Maytin, Carlos E.; Tonella, Giorgio & Harwell, Mark A.
Object Type: Article
System: The UNT Digital Library
Simulación de la dinámica de grupos de especies vegetales en un bosque de los Llanos occidentales Venezolanos (open access)

Simulación de la dinámica de grupos de especies vegetales en un bosque de los Llanos occidentales Venezolanos

Article discussing the simulation of plant species groups dynamics in a Venezuelan western plains forest.
Date: January 1997
Creator: Angulo, Hirma Ramírez; Torres-Lezama, Armando & Acevedo, Miguel F.
Object Type: Article
System: The UNT Digital Library
Heterogeneidad estructural y lumínica del sotobosque de una selva nublada andina de Venezuela (open access)

Heterogeneidad estructural y lumínica del sotobosque de una selva nublada andina de Venezuela

Article discussing the understory of an Andean cloud forest in the Sierra Nevada National Park, Venezuela.
Date: July 2003
Creator: Acevedo, Miguel F.; Ataroff, Michele; Monteleone, Susan & Estrada, Carlos A.
Object Type: Article
System: The UNT Digital Library
Transition and gap models of forest dynamics (open access)

Transition and gap models of forest dynamics

Article discussing transition and gap models of forest dynamics.
Date: November 1995
Creator: Acevedo, Miguel F.; Urban, D. L. & Ablan, Magdiel
Object Type: Article
System: The UNT Digital Library
Relaciones alométricas y patrones de crecimiento para especies de árboles de la reserva forestal Imataca, Venezuela (open access)

Relaciones alométricas y patrones de crecimiento para especies de árboles de la reserva forestal Imataca, Venezuela

Article discussing allometric relations and growth patterns for tree species in the Imataca Forest Reserve, Venezuela.
Date: May 2005
Creator: Delgado, Luz A.; Acevedo, Miguel F.; Castellanos, Hernán; Angulo, Hirma Ramírez & Serrano, Julio
Object Type: Article
System: The UNT Digital Library
Simulación de la dinámica de un bosque tropical en los Llanos occidentales de Venezuela (open access)

Simulación de la dinámica de un bosque tropical en los Llanos occidentales de Venezuela

Article discussing the simulation of the dynamics of a tropical forest in the Western Llanos of Venezuela.
Date: February 2006
Creator: Angulo, Hirma Ramírez; Ablan, Magdiel; Torres-Lezama, Armando & Acevedo, Miguel F.
Object Type: Article
System: The UNT Digital Library
Loss of Rare Fish Species from Tropical Floodplain Food Webs Affects Community Structure and Ecosystem Multifunctionality in a Mesocosm Experiment (open access)

Loss of Rare Fish Species from Tropical Floodplain Food Webs Affects Community Structure and Ecosystem Multifunctionality in a Mesocosm Experiment

Article on the loss of rare fish species from tropical floodplain food webs and how this affects community structure and ecosystem multifunctionality in a mesocosm experiment.
Date: February 3, 2012
Creator: Pendleton, Richard M.; Hoeinghaus, David; Gomes, Luiz C. & Agostinho, Angela A.
Object Type: Article
System: The UNT Digital Library
Low neutral genetic diversity in isolated Greater Sage-Grouse (Centrocercus urophasianus) populations in northwest Wyoming (open access)

Low neutral genetic diversity in isolated Greater Sage-Grouse (Centrocercus urophasianus) populations in northwest Wyoming

This article contains an analysis of 16 microstatellite loci from 300 Greater Sage-Grouse individuals to assess genetic structure among populations in Wyoming and southeast Montana.
Date: March 26, 2014
Creator: Schulwitz, Sarah; Bedrosian, Bryan & Johnson, Jeff A.
Object Type: Article
System: The UNT Digital Library

Investigations in Tayloria mirabilis spore dispersal via insect in Cape Horn Biosphere Reserve, Chile

Poster presentation for the 2011 University Scholars Day at the University of North Texas discussing research on Tayloria mirabilis spore dispersal via insect in Cape Horn Biosphere Reserve, Chile.
Date: April 14, 2011
Creator: Mighell, Kimberly & Kennedy, James H.
Object Type: Poster
System: The UNT Digital Library

Links Between Mercury and Liver Damage in Wild Fish Populations

Presentation for the 2008 University Scholars Day at the University of North Texas discussing research on links between mercury and liver damage in wild fish populations.
Date: April 3, 2008
Creator: Gevertz, Amanda Kate; Roberts, Aaron & Drevnick, Paul E.
Object Type: Presentation
System: The UNT Digital Library