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Cometabolic bioremediation (open access)

Cometabolic bioremediation

Cometabolic bioremediation is probably the most under appreciated bioremediation strategy currently available. Cometabolism strategies stimulate only indigenous microbes with the ability to degrade the contaminant and cosubstrate e.g. methane, propane, toluene and others. This highly targeted stimulation insures that only those microbes that can degrade the contaminant are targeted, thus reducing amendment costs, well and formation plugging, etc. Cometabolic bioremediation has been used on some of the most recalcitrant contaminants, e.g. PCE, TCE, MTBE, TNT, dioxane, atrazine, etc. Methanotrophs have been demonstrated to produce methane monooxygense, an oxidase that can degrade over 300 compounds. Cometabolic bioremediation also has the advantage of being able to degrade contaminants to trace concentrations, since the biodegrader is not dependent on the contaminant for carbon or energy. Increasingly we are finding that in order to protect human health and the environment that we must remediate to lower and lower concentrations, especially for compounds like endocrine disrupters, thus cometabolism may be the best and maybe the only possibility that we have to bioremediate some contaminants.
Date: February 15, 2009
Creator: Hazen, Terry C.
System: The UNT Digital Library
Cometabolic bioremediation (open access)

Cometabolic bioremediation

This is a report on the comebiotic bioremediation which is the most under-appreciated strategy currently available.
Date: February 15, 2009
Creator: Hazen, Terry C.
System: The UNT Digital Library

The Sutton-taylor Feud: the Deadliest Blood Feud in Texas

Access: Use of this item is restricted to the UNT Community
The Sutton-Taylor Feud of DeWitt, Gonzales, Karnes, and surrounding counties began shortly after the Civil War ended. The blood feud continued into the 1890s when the final court case was settled with a governmental pardon. Of all the Texas feuds, the one between the Sutton and Taylor forces lasted longer and covered more ground than any other. William E. Sutton was the only Sutton involved, but he had many friends to wage warfare against the large Taylor family. The causes are still shrouded in mystery and legend, as both sides argued they were just and right. In April 1868 Charles Taylor and James Sharp were shot down in Bastrop County, alleged horse thieves attempting to escape. During this period many men were killed “while attempting to escape.” The killing on Christmas Eve 1868 of Buck Taylor and Dick Chisholm was perhaps the final spark that turned hard feelings into fighting with bullets and knives. William Sutton was involved in both killings. “Who sheds a Taylor's blood, by a Taylor's hand must fall” became a fact of life in South Texas. Violent acts between the two groups now followed. The military reacted against the killing of two of their soldiers in …
Date: February 15, 2009
Creator: Parsons, Chuck
System: The UNT Digital Library
FCC Record, Volume 24, No. 2, Pages 857 to 1611, January 19 - February 13, 2009 (open access)

FCC Record, Volume 24, No. 2, Pages 857 to 1611, January 19 - February 13, 2009

Biweekly, comprehensive compilation of decisions, reports, public notices, and other documents of the U.S. Federal Communications Commission.
Date: February 2009
Creator: United States. Federal Communications Commission.
System: The UNT Digital Library
FCC Record, Volume 24, No. 3, Pages 1612 to 2571, February 16 - February 26, 2009 (open access)

FCC Record, Volume 24, No. 3, Pages 1612 to 2571, February 16 - February 26, 2009

Biweekly, comprehensive compilation of decisions, reports, public notices, and other documents of the U.S. Federal Communications Commission.
Date: February 2009
Creator: United States. Federal Communications Commission.
System: The UNT Digital Library
In situ groundwater bioremediation (open access)

In situ groundwater bioremediation

In situ groundwater bioremediation of hydrocarbons has been used for more than 40 years. Most strategies involve biostimulation; however, recently bioaugmentation have been used for dehalorespiration. Aquifer and contaminant profiles are critical to determining the feasibility and strategy for in situ groundwater bioremediation. Hydraulic conductivity and redox conditions, including concentrations of terminal electron acceptors are critical to determine the feasibility and strategy for potential bioremediation applications. Conceptual models followed by characterization and subsequent numerical models are critical for efficient and cost effective bioremediation. Critical research needs in this area include better modeling and integration of remediation strategies with natural attenuation.
Date: February 1, 2009
Creator: Hazen, Terry C.
System: The UNT Digital Library
Mathematical models as tools for probing long-term safety of CO2 storage (open access)

Mathematical models as tools for probing long-term safety of CO2 storage

Subsurface reservoirs being considered for storing CO{sub 2} include saline aquifers, oil and gas reservoirs, and unmineable coal seams (Baines and Worden, 2004; IPCC, 2005). By far the greatest storage capacity is in saline aquifers (Dooley et al., 2004), and our discussion will focus primarily on CO{sub 2} storage in saline formations. Most issues for safety and security of CO{sub 2} storage arise from the fact that, at typical temperature and pressure conditions encountered in terrestrial crust, CO{sub 2} is less dense than aqueous fluids. Accordingly, CO{sub 2} will experience an upward buoyancy force in most subsurface environments, and will tend to migrate upwards whenever (sub-)vertical permeable pathways are available, such as fracture zones, faults, or improperly abandoned wells (Bachu, 2008; Pruess, 2008a, b; Tsang et al., 2008). CO{sub 2} injection will increase fluid pressures in the target formation, thereby altering effective stress distributions, and potentially triggering movement along fractures and faults that could increase their permeability and reduce the effectiveness of a caprock in containing CO{sub 2} (Rutqvist et al., 2008; Chiaramonte et al., 2008). Induced seismicity as a consequence of fluid injection is also a concern (Healy et al., 1968; Raleigh et al., 1976; Majer et al., 2007). …
Date: February 1, 2009
Creator: Pruess, Karsten; Birkholzer, Jens & Zhou, Quanlin
System: The UNT Digital Library
MOLECULAR SPECTROSCPY AND REACTIONS OF ACTINIDES IN THE GAS PHASE AND CRYOGENIC MATRICES (open access)

MOLECULAR SPECTROSCPY AND REACTIONS OF ACTINIDES IN THE GAS PHASE AND CRYOGENIC MATRICES

In this chapter we review the spectroscopic data for actinide molecules and the reaction dynamics for atomic and molecular actinides that have been examined in the gas phase or in inert cryogenic matrices. The motivation for this type of investigation is that physical properties and reactions can be studied in the absence of external perturbations (gas phase) or under minimally perturbing conditions (cryogenic matrices). This information can be compared directly with the results from high-level theoretical models. The interplay between experiment and theory is critically important for advancing our understanding of actinide chemistry. For example, elucidation of the role of the 5f electrons in bonding and reactivity can only be achieved through the application of experimentally verified theoretical models. Theoretical calculations for the actinides are challenging due the large numbers of electrons that must be treated explicitly and the presence of strong relativistic effects. This topic has been reviewed in depth in Chapter 17 of this series. One of the goals of the experimental work described in this chapter has been to provide benchmark data that can be used to evaluate both empirical and ab initio theoretical models. While gas-phase data are the most suitable for comparison with theoretical calculations, …
Date: February 1, 2009
Creator: Heaven, Michael C.; Gibson, John K. & Marcalo, Joaquim
System: The UNT Digital Library
Acquisition of Crosswell Seismic Monitoring Data (open access)

Acquisition of Crosswell Seismic Monitoring Data

Crosswell seismic acquisition provides an ideal geometry for monitoring travel time changes in the subsurface. Analysis of delay time in terms of a characteristic frequency allows us to estimate optimal acquisition parameters (frequency and distance). We have deployed standard data acquisition equipment for continuous monitoring of crosswell travel time in two separate field experiments, with well spacing of 3 and 30 m. The acquisition hardware used for the field experiments is described, along with environmental effects (such as temperature) that influence the measurements. Two field experiments are described that correlate changes in travel time (and therefore velocity) with changes in barometric pressure. The results from the two field sites show a pressure sensitivity for velocity of 10{sup -6}/Pa to 10{sup -8}/Pa.
Date: February 15, 2008
Creator: Daley, T. M.; Niu, F.; Silver, P. G. & Majer, E. L.
System: The UNT Digital Library
Appraisal Review Board Manual, 2008 (open access)

Appraisal Review Board Manual, 2008

Manual to train new Appraisal Review Board members as they begin their work including information about the position, general operations, resolving disputes and approving records, conducting hearings, other duties, and additional information related to the position. Index starts on page 73.
Date: February 2008
Creator: Texas. Comptroller's Office.
System: The Portal to Texas History
Effects of Climate Change on Energy Production and Use in the United States (open access)

Effects of Climate Change on Energy Production and Use in the United States

This document, part of the Synthesis and Assessment Products described in the U.S. Climate Change Science Program (CCSP) Strategic Plan. Climate affects the design, construction, safety, operations, and maintenance of transportation infrastructure and systems. The prospect of a changing climate raises critical questions regarding how alterations in temperature, precipitation, storm events, and other aspects of the climate could affect the nation's roads, airports, rail, transit systems, pipelines, ports, and waterways. Phase I of this regional assessment of climate change and its potential impacts on transportation systems addresses these questions for the region of the U.S. central Gulf Coast between Galveston, Texas and Mobile, Alabama. This region contains multimodal transportation infrastructure that is critical to regional and national transportation services. Historical trends and future climate scenarios were used to establish a context for examining the potential effects of climate change on all major transportation modes within the region. Climate changes anticipated during the next 50 to 100 years for the central Gulf Coast include warming temperatures, changes in precipitation patterns, and increased storm intensity. The warming of the oceans and decline of polar ice sheets is expected to accelerate the rate of sea level rise globally. The effects of sea level …
Date: February 2008
Creator: U.S. Climate Change Science Program and the Subcommittee on Global Change Research
System: The UNT Digital Library
FCC Record, Volume 23, No. 2, Pages 667 to 1621, January 22 - February 1, 2008 (open access)

FCC Record, Volume 23, No. 2, Pages 667 to 1621, January 22 - February 1, 2008

Biweekly, comprehensive compilation of decisions, reports, public notices, and other documents of the U.S. Federal Communications Commission.
Date: February 2008
Creator: United States. Federal Communications Commission.
System: The UNT Digital Library
FCC Record, Volume 23, No. 3, Pages 1622 to 2581, February 4 - February 15, 2008 (open access)

FCC Record, Volume 23, No. 3, Pages 1622 to 2581, February 4 - February 15, 2008

Biweekly, comprehensive compilation of decisions, reports, public notices, and other documents of the U.S. Federal Communications Commission.
Date: February 2008
Creator: United States. Federal Communications Commission.
System: The UNT Digital Library
FCC Record, Volume 23, No. 4, Pages 2582 to 3503, February 19 - February 29, 2008 (open access)

FCC Record, Volume 23, No. 4, Pages 2582 to 3503, February 19 - February 29, 2008

Biweekly, comprehensive compilation of decisions, reports, public notices, and other documents of the U.S. Federal Communications Commission.
Date: February 2008
Creator: United States. Federal Communications Commission.
System: The UNT Digital Library
Proper Use of Sulfonamides in Market Show Animals (open access)

Proper Use of Sulfonamides in Market Show Animals

This document provides the proper use of sulfonamides for market show animals.
Date: February 2008
Creator: Faries, Floron C. & Fajt, Virginia
System: The Portal to Texas History
Debt Affordability Study, First Edition (open access)

Debt Affordability Study, First Edition

This document is a "report on the current debt position of and the debt burden carried by the state government of Texas. This project was requested by the Senate Finance Committee during the Seventy-Ninth Legislature as a joint effort between the Legislative Budget Board, the Texas Bond Review Board, and the Texas Public Finance Authority" (Legislative Budget Board Letter).
Date: February 16, 2007
Creator: Texas. Legislative Budget Board.
System: The Portal to Texas History

Inside John Haynie's Studio: a Master Teacher's Lessons on Trumpet and Life

Access: Use of this item is restricted to the UNT Community
“This wonderful collection of essays is a treasure of insight into the mind and heart of one of our great American performers and teachers. If the Arban book is the trumpet player’s ‘Bible,’ then I’d have to say Inside John Haynie’s Studio is the trumpet teacher’s ‘Bible.’”–Ronald Romm, founder, Canadian Brass and Professor of Trumpet, University of Illinois “The essays in this remarkable volume go far beyond trumpet pedagogy, providing an exquisite portrait of the studio practices of one of the first full-time single-instrument wind faculty members in an American college or university setting. John’s concern for educating the whole person, not just cramming for the job market, emanates from every page. This book showcases a teaching career that has become legendary.”–James Scott, Dean of the College of Music, University of North Texas “The principle that pervades my entire educational philosophy did not come from education or psychology classes; it did not come from the many sermons preached by my Dad and hundreds of other pulpiteers. It came from John Haynie’s studio.”–Douglas Smith, Mildred and Ernest Hogan Professor of Music, Southern Baptist Theological Seminary “I read a book like this and I come out the other end asking, ‘Why didn’t …
Date: February 15, 2007
Creator: Haynie, John & Hardin, Anne
System: The UNT Digital Library
SAMPLING AND ANALYSIS PROTOCOLS (open access)

SAMPLING AND ANALYSIS PROTOCOLS

Radiological sampling and analyses are performed to collect data for a variety of specific reasons covering a wide range of projects. These activities include: Effluent monitoring; Environmental surveillance; Emergency response; Routine ambient monitoring; Background assessments; Nuclear license termination; Remediation; Deactivation and decommissioning (D&D); and Waste management. In this chapter, effluent monitoring and environmental surveillance programs at nuclear operating facilities and radiological sampling and analysis plans for remediation and D&D activities will be discussed.
Date: February 9, 2007
Creator: Jannik, T & P Fledderman, P
System: The UNT Digital Library
FCC Record, Volume 22, No. 4, Pages 2008 to 2576, February 1 - February 9, 2007 (open access)

FCC Record, Volume 22, No. 4, Pages 2008 to 2576, February 1 - February 9, 2007

Biweekly, comprehensive compilation of decisions, reports, public notices, and other documents of the U.S. Federal Communications Commission.
Date: February 2007
Creator: United States. Federal Communications Commission.
System: The UNT Digital Library
FCC Record, Volume 22, No. 5, Pages 2577 to 3364, February 12 - February 16, 2007 (open access)

FCC Record, Volume 22, No. 5, Pages 2577 to 3364, February 12 - February 16, 2007

Biweekly, comprehensive compilation of decisions, reports, public notices, and other documents of the U.S. Federal Communications Commission.
Date: February 2007
Creator: United States. Federal Communications Commission.
System: The UNT Digital Library

Oral History Interview with Renee Shelton, November 26, 2006

Access: Use of this item is restricted to the UNT Community
Interview with Renee Shelton, a resident of Eastland County, regarding her experiences as a member of the African American community there. Shelton discusses starting school during the period of integration, discrimination she experienced, interracial dating, local community organizations, work at E. L. Graham Hospital and Russell-Newman, and prejudice experienced by her children in smaller Texas towns.
Date: February 26, 2006
Creator: Rose, DeAnn & Shelton, Renee
System: The UNT Digital Library
1995 Army Team Lead Desk Material - 1991 BRAC Commission Final Report (open access)

1995 Army Team Lead Desk Material - 1991 BRAC Commission Final Report

1995 Army Team Lead Desk Material - 1991 BRAC Commission Final Report.
Date: February 17, 2006
Creator: United States. Defense Base Closure and Realignment Commission.
System: The UNT Digital Library
1995 Army Team Lead Desk Material - Dod Base Realignment and Closure Report, March 1993 (open access)

1995 Army Team Lead Desk Material - Dod Base Realignment and Closure Report, March 1993

1995 Army Team Lead Desk Material - Dod Base Realignment and Closure Report, March 1993.
Date: February 17, 2006
Creator: United States. Department of Defense.
System: The UNT Digital Library
1995 Army Team Lead Desk Material - DoD Base Realignment and Closure Report, March 1995 (open access)

1995 Army Team Lead Desk Material - DoD Base Realignment and Closure Report, March 1995

1995 Army Team Lead Desk Material - DoD Base Realignment and Closure Report, March 1995.
Date: February 17, 2006
Creator: United States. Department of Defense.
System: The UNT Digital Library