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Lignite Deposits and Kidney and Renal Pelvic Cancers in Texas 1980-1998 (open access)

Lignite Deposits and Kidney and Renal Pelvic Cancers in Texas 1980-1998

This paper discusses research on lignite deposits and kidney and renal pelvic cancers in Texas from 1980 to 1998. This study also probes the role of such factors as race, gender, and socioeconomic status on mortality rates for these cancers.
Date: April 3, 2008
Creator: Guthrey, Harvey & Oppong, Joseph R.
Object Type: Paper
System: The UNT Digital Library
Gastric Cancers in Texas: Are Nitrates the Problem? (open access)

Gastric Cancers in Texas: Are Nitrates the Problem?

This paper discusses research on gastric cancers in Texas. The study shows that in Texas, the relationship between nitrates and gastric cancer may not be as significant a factor as reported elsewhere.
Date: April 3, 2008
Creator: Mlinarich, Steve & Oppong, Joseph R.
Object Type: Paper
System: The UNT Digital Library
Performance Comparison of Passive Structures with Multiple Gates and Funnels for Capturing Contaminated Groundwater (open access)

Performance Comparison of Passive Structures with Multiple Gates and Funnels for Capturing Contaminated Groundwater

This article describes the evaluation of the capability of passive interceptors with multiple gates for directing the flow of contaminated groundwater.
Date: September 2007
Creator: Hudak, Paul F.
Object Type: Article
System: The UNT Digital Library
Controlling Gully Erosion with Earth Dams in North-Central Texas (open access)

Controlling Gully Erosion with Earth Dams in North-Central Texas

This article describes the use of earth dams for controlling gully erosion in part of the Eastern Cross Timbers of North-Central Texas.
Date: January 2001
Creator: Hudak, Paul F. & Chadbourne, John
Object Type: Article
System: The UNT Digital Library
Lightning, Downed Power Line Form Intriguing Rock Structure in Denton, Texas (open access)

Lightning, Downed Power Line Form Intriguing Rock Structure in Denton, Texas

This article describes a vitrified soil structure, formed by atmospheric and human activity, possessing characteristics of igneous and metamorphic rocks.
Date: March 2003
Creator: Hudak, Paul F. & Maxey, George
Object Type: Article
System: The UNT Digital Library
Modelos de Simulación a Diferentes Escalas de la Dinámica del Bosque Tropical. Reserva Forestal Imataca. Sector Central. (open access)

Modelos de Simulación a Diferentes Escalas de la Dinámica del Bosque Tropical. Reserva Forestal Imataca. Sector Central.

Thesis submitted to the National Experimental University of Guayana as partial requirement for the degree of Master of Science in Environmental Science. This thesis discusses simulation models at different scales of tropical forest dynamics.
Date: June 2000
Creator: Delgado, Luz A. & Acevedo, Miguel F.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Creased-Plastic Rock Permeameter for Hydrogeology Students (open access)

Creased-Plastic Rock Permeameter for Hydrogeology Students

This article discusses the use of creased-plastic permeameters as an inexpensive way for students to estimate the hydraulic conductivity of local rock aquifers.
Date: March 2001
Creator: Hudak, Paul F.
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
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
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
Nitrate, Arsenic and Selenium Concentrations in The Pecos Valley Aquifer, West Texas, USA (open access)

Nitrate, Arsenic and Selenium Concentrations in The Pecos Valley Aquifer, West Texas, USA

This article discusses nitrate, arsenic, and selenium concentrations in the Pecos Valley Aquifer in west Texas in the context of local geology and land use.
Date: November 12, 2009
Creator: Hudak, Paul F.
Object Type: Article
System: The UNT Digital Library
Using GIS technology to identify areas of tuberculosis transmission and incidence (open access)

Using GIS technology to identify areas of tuberculosis transmission and incidence

This article discusses using GIS technology to identify areas of tuberculosis transmission and incidence.
Date: October 13, 2004
Creator: Moonan, Patrick K.; Bayona, Manuel; Quitugua, Teresa N.; Oppong, Joseph R.; Dunbar, Denise; Jost, Kenneth C. et al.
Object Type: Article
System: The UNT Digital Library
Evaluation Of WEPP For Runoff And Sediment Yield Prediction On Natural Gas Well Sites (open access)

Evaluation Of WEPP For Runoff And Sediment Yield Prediction On Natural Gas Well Sites

This article discusses the evaluation of Water Erosion Prediction Project (WEPP) for runoff and sediment yield prediction on natural gas well sites, instead of focusing only on the effects on fields, rangelands, and forests.
Date: 2008
Creator: Wachal, David J.; Harmel, R. Daren; Banks, Kenneth E. & Hudak, Paul F.
Object Type: Article
System: The UNT Digital Library
Spatio-Temporal Distribution of Malaria in Yunnan Province, China (open access)

Spatio-Temporal Distribution of Malaria in Yunnan Province, China

This article describes the use of GIS techniques to conduct temporal and spatial analyses of both P. vivax and P. falciparum malaria to understand the trend and dynamics of transmission, to identify risk periods and areas, and to determine environmental factors associated with increased risk of malaria.
Date: September 1, 2009
Creator: Hui, Feng-Ming; Xu, Bing; Chen, Zhang-Wei; Cheng, Xiao; Liang, Lu; Huang, Hua-Bing et al.
Object Type: Article
System: The UNT Digital Library
Aberturas del dosel y espectro de la luz en el sotobosque de una selva nublada andina de Venezuela (open access)

Aberturas del dosel y espectro de la luz en el sotobosque de una selva nublada andina de Venezuela

Article on canopy gaps and understory light spectrum in a Venezuelan Andean cloud forest.
Date: January 2001
Creator: Acevedo, Miguel F.; Monteleone, Susan; Ataroff, Michele & Estrada, Carlos A.
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: October 23, 2007
Creator: Ablan, Magdiel; Andressen, Rigoberto; Vargas, Mary Pili & Acevedo, Miguel F.
Object Type: Article
System: The UNT Digital Library
Modelos de interacción humano-ambiental: el enfoque de la Biocomplejidad (open access)

Modelos de interacción humano-ambiental: el enfoque de la Biocomplejidad

Article discussing models of human-nature interactions and a biocomplexity approach.
Date: September 2007
Creator: Acevedo, Miguel F.; Rosales, Judith; Delgado, Luz A.; Ablan, Magdiel; Dávila, Jacinto; Callicott, J. Baird et al.
Object Type: Article
System: The UNT Digital Library
Crecimiento diamétrico de especies arbóreas en un bosque estacional de los Llanos occidentales de Venezuela (open access)

Crecimiento diamétrico de especies arbóreas en un bosque estacional de los Llanos occidentales de Venezuela

Article discussing the diametric tree growth in functional groups species in a seasonal forest of the Venezuelan western plains.
Date: 2009
Creator: Angulo, Hirma Ramírez; Acevedo, Miguel F.; Ataroff, Michele & Torres-Lezama, Armando
Object Type: Article
System: The UNT Digital Library
Growth dynamics of tropical savanna grasses: from individual shoots to plant models (open access)

Growth dynamics of tropical savanna grasses: from individual shoots to plant models

Paper presented at the First Biennial Meeting of the International Environmental Modelling and Software Society in 2002. This paper discusses growth dynamics of tropical savanna grasses from individual shoots to plant models.
Date: 2002
Creator: Raventós, José; Acevedo, Miguel F. & Segarra, José
Object Type: Paper
System: The UNT Digital Library
The Industrial Geography of Toxic Chemical Generation, Release and Management in Texas (open access)

The Industrial Geography of Toxic Chemical Generation, Release and Management in Texas

This article examines overall trends in toxic chemical generation, releases and management in Texas from 1995 to 1999 within the broad context of sustainable industrial production.
Date: 2001
Creator: Lyons, Donald
Object Type: Article
System: The UNT Digital Library
An Updating System for the Gridded Population Database of China Based on Remote Sensing, GIS and Spatial Database Technologies (open access)

An Updating System for the Gridded Population Database of China Based on Remote Sensing, GIS and Spatial Database Technologies

Describes the development of a Spatial Population Updating System (SPUS) for updating the gridded population database of China based on remote sensing, GIS and spatial database technologies, with a spatial resolution of 1 km by 1 km.
Date: February 20, 2009
Creator: Yang, Xiaohuan; Huang, Yaohuan; Dong, Pinliang; Jiang, Dong & Liu, Honghui
Object Type: Article
System: The UNT Digital Library
Instrument, System and Method for Automated Low Cost Atmospheric Measurements (open access)

Instrument, System and Method for Automated Low Cost Atmospheric Measurements

Patent relating to an instrument, system and method for automated low cost atmospheric measurements.
Date: May 11, 2006
Creator: Acevedo, Miguel F.; Waller, William T. & Nebgen, Gilbert B.
Object Type: Patent
System: The UNT Digital Library
A History of Geography at the University of North Texas (open access)

A History of Geography at the University of North Texas

This article provides a history of the Geography Department at the University of North Texas.
Date: 2004
Creator: Lyons, Donald & Forbes, Bill
Object Type: Article
System: The UNT Digital Library
The Geography of HIV in Dallas County, Texas, 1999-2003 (open access)

The Geography of HIV in Dallas County, Texas, 1999-2003

This paper discusses research on the geography of HIV in Dallas County, Texas from 1999 to 2003.
Date: March 30, 2006
Creator: Enwright, Nicholas & Oppong, Joseph R.
Object Type: Paper
System: The UNT Digital Library