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open access

Combining Spatial-Temporal and Phylogenetic Analysis Approaches for Improved Understanding on Global H5N1 Transmission

Description: This article reports an interdisciplinary effort that combines the geospatial informatics approach with a bioinformatics approach to form an improved understanding on the transmission mechanisms of H5N1 virus.
Date: October 22, 2010
Creator: Liang, Lu; Xu, Bing; Chen, Yanlei; Liu, Yang; Cao, Wuchun; Fang, Liqun et al.
Item Type: Refine your search to only Article
Partner: UNT College of Arts and Sciences
open access

Retreating Glaciers of the Himalayas: A Case Study of Gangotri Glacier Using 1990-2009 Satellite Images

Description: This paper discusses research on the spatial and temporal variation of the Gangotri Glacier, one of the largest glaciers in the Himalayas. The authors discuss how this influences the River Ganges and, consequently, the people of the Indian subcontinent.
Date: April 1, 2010
Creator: Ding, Jennifer & Dong, Pinliang
Item Type: Refine your search to only Paper
Partner: UNT Honors College
open access

The chemical-in-plug bacterial chemotaxis assay is prone to false positive responses. BMC Research Notes 2010, 3:77

Description: Chemical-in-plug assays are commonly used to study bacterial chemotaxis, sometimes in the absence of stringent controls. We report that non-chemotactic and non-motile mutants in two distinct bacterial species (Shewanella oneidensis and Helicobacter pylori) show apparent zones of accumulation or clearing around test plugs containing potential attractants or repellents, respectively. Our results suggest that the chemical-in-plug assay should be used with caution, that non-motile or non-chemotacti… more
Date: March 1, 2010
Creator: Li, Jun; Go, Alvin C; Ward, Mandy J & Ottemann, Karen M
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Impact of land use change on the local climate over the Tibetan Plateau

Description: Observational data show that the remotely sensed leaf area index (LAI) has a significant downward trend over the east Tibetan Plateau (TP), while a warming trend is found in the same area. Further analysis indicates that this warming trend mainly results from the nighttime warming. The Single-Column Atmosphere Model (SCAM) version 3.1 developed by the National Center for Atmospheric Research is used to investigate the role of land use change in the TP local climate system and isolate the contri… more
Date: April 1, 2010
Creator: Jin, J.; Lu, S.; Li, S. & Miller, N. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

State of the Climate in 2009

Description: This report describes observations of precipitation, temperature, and other climatology metrics from different global regions.
Date: June 2010
Creator: Andt, D. S.; Baringer, M. O.; Johnson, M. R.; Alexander, L. V.; Diamond, H. J.; Fogt, R. L. et al.
Item Type: Refine your search to only Text
Partner: UNT Libraries
open access

Archaeological Proteomics: Method Development and Analysis of Protein-Ceramic Binding

Description: The analysis of protein residues recovered from archaeological artifacts provides a unique opportunity to reveal new information about past societies. However, many scientists are currently unwilling to accept protein-based results due to problems in method development and a basic lack of agreement regarding the ability of proteins to bind to, and preserve within, artifacts such as pottery. In this paper, I address these challenges by conducting a two-phase experiment. First, I quantitatively e… more
Date: May 2010
Creator: Barker, Andrew L.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

[Commencement Program for University of North Texas, December 17-18, 2010]

Description: Commencement program for the fall 2010 graduating class of the University of North Texas, held in the Coliseum on Friday and Saturday, December 17-18, 2010. The program contains the order of service and a list of graduates for the baccalaureate, master's, and doctoral degrees.
Date: 2010-12-17/2010-12-18
Creator: University of North Texas
Item Type: Refine your search to only Pamphlet
Partner: UNT Libraries Special Collections
open access

The Global Expansion of Transnational Retailers: A Case Study of the Localization Strategy of Costco in Taiwan

Description: This research focuses on the global expansion of the transnational retail industry. Globalization is a phenomenon experienced by many industries in the present global economy. The global production network (GPN) framework can be used to explain and interpret the phenomenon of transnational firms' adaptation strategies. Due to market saturation in their home countries, retailers began to expand into East Asia in the 1980s. However, cultural differences and legislative limitations created barrier… more
Date: December 2010
Creator: Yeh, YunLung
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Terrestrial biogeochemical feedbacks in the climate system: from past to future

Description: The terrestrial biosphere plays a major role in the regulation of atmospheric composition, and hence climate, through multiple interlinked biogeochemical cycles (BGC). Ice-core and other palaeoenvironmental records show a fast response of vegetation cover and exchanges with the atmosphere to past climate change, although the phasing of these responses reflects spatial patterning and complex interactions between individual biospheric feedbacks. Modern observations show a similar responsiveness o… more
Date: January 5, 2010
Creator: Arneth, A.; Harrison, S. P.; Zaehle, S.; Tsigaridis, K.; Menon, S.; Bartlein, P. J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Biomass Energy for Transport and Electricity: Large scale utilization under low CO2 concentration scenarios

Description: This paper examines the potential role of large scale, dedicated commercial biomass energy systems under global climate policies designed to stabilize atmospheric concentrations of CO2 at 400ppm and 450ppm. We use an integrated assessment model of energy and agriculture systems to show that, given a climate policy in which terrestrial carbon is appropriately valued equally with carbon emitted from the energy system, biomass energy has the potential to be a major component of achieving these low… more
Date: January 25, 2010
Creator: Luckow, Patrick; Wise, Marshall A.; Dooley, James J. & Kim, Son H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

County Level Population Estimation Using Knowledge-Based Image Classification and Regression Models

Description: This paper presents methods and results of county-level population estimation using Landsat Thematic Mapper (TM) images of Denton County and Collin County in Texas. Landsat TM images acquired in March 2000 were classified into residential and non-residential classes using maximum likelihood classification and knowledge-based classification methods. Accuracy assessment results from the classified image produced using knowledge-based classification and traditional supervised classification (maxim… more
Date: August 2010
Creator: Nepali, Anjeev
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Using Geographic Information Systems for the Functional Assessment of Texas Coastal Prairie Freshwater Wetlands Around Galveston Bay

Description: The objective of this study was to deploy a conceptual framework developed by M. Forbes using a geographic information system (GIS) approach to assess the functionality of wetlands in the Galveston Bay Area of Texas. This study utilized geospatial datasets which included National Wetland Inventory maps (NWI), LiDAR data, National Agriculture Imagery Program (NAIP) imagery and USGS National Land Cover data to assess the capacity of wetlands to store surface water and remove pollutants, including… more
Date: May 2010
Creator: Enwright, Nicholas
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Spatial Analysis of North Central Texas Traffic Fatalities 2001-2006

Description: A traditional two dimensional (planar) statistical analysis was used to identify the clustering types of North Central Texas traffic fatalities occurring in 2001-2006. Over 3,700 crash locations clustered in ways that were unlike other researched regions. A two dimensional (x and y coordinates) space was manipulated to mimic a one dimensional network to identify the tightest clustering of fatalities in the nearly 400,000 crashes reported from state agencies from 2003-2006. The roadway design wa… more
Date: December 2010
Creator: Rafferty, Paula S.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

A Spatially Explicit Environmental Health Surveillance Framework for Tick-Borne Diseases

Description: In this paper, I will show how applying a spatially explicit context to an existing environmental health surveillance framework is vital for more complete surveillance of disease, and for disease prevention and intervention strategies. As a case study to test the viability of a spatial approach to this existing framework, the risk of human exposure to Lyme disease will be estimated. This spatially explicit framework divides the surveillance process into three components: hazard surveillance, ex… more
Date: August 2010
Creator: Aviña, Aldo
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

An Analysis of UNT Commuting Patterns

Description: Academic institutions have recently organized to address their campus' greenhouse gas emissions. Along those lines, the University of North Texas (UNT) pledged to minimize the campus' environmental impact, and conducted a transportation survey in May 2009. The analyses confirm that commuting to campus was the second highest source (29%) of UNT's greenhouse gas emissions, following purchased electricity (48%). Students, faculty and staff drive over 89 million miles per year, 84% of which comes f… more
Date: May 2010
Creator: Waskey, Susan L.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Operation of the Enterprise for the Americas Initiative and the Tropical Forest Conservation Act: 2009 Annual Report

Description: "This report summarizes new and counting activities during calendar year 2009 under the Tropical Forest Conservation Act of 1998, Congressionally-authorized debt relief program jointly managed by the Departments of State and Treasury and the U.S. Agency for International Development (USAID)."
Date: August 2010
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

State of Biodiversity Markets Offset and Compensation Programs Worldwide

Description: The report provides the status and trends of biodiversity offset and compensatory mitigation programs by geographical region. It summarizes the total active programs and developing activities, and broad metrics like total known payments and land area protected. It also analyzes the characteristics of offset programs and looks at recent developments in nascent and existing programs in the region.
Date: January 2010
Creator: Madsen, Becca; Carroll, Nathaniel & Moore Brands, Kelly
Item Type: Refine your search to only Text
Partner: UNT Libraries
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