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Models of Superoxide Dismutases (open access)

Models of Superoxide Dismutases

In this review we have focused much of our discussion on the mechanistic details of how the native enzymes function and how mechanistic developments/insights with synthetic small molecule complexes possessing SOD activity have influenced our understanding of the electron transfer processes involved with the natural enzymes. A few overriding themes have emerged. Clearly, the SOD enzymes operate at near diffusion controlled rates and to achieve such catalytic turnover activity, several important physical principles must be operative. Such fast electron transfer processes requires a role for protons; i.e., proton-coupled electron transfer (''H-atom transfer'') solves the dilemma of charge separation developing in the transition state for the electron transfer step. Additionally, outer-sphere electron transfer is likely a most important pathway for manganese and iron dismutases. This situation arises because the ligand exchange rates on these two ions in water never exceed {approx}10{sup +7} s{sup -1}; consequently, 10{sup +9} catalytic rates require more subtle mechanistic insights. In contrast, copper complexes can achieve diffusion controlled (>10{sup +9}) exchange rates in water; thus inner-sphere electron transfer processes are more likely to be operative in the Cu/Zn enzymes. Recent studies have continued to expand our understanding of the mechanism of action of this most important class …
Date: May 20, 1998
Creator: Cabelli, Diane E.; Riley, Dennis; Rodriguez, Jorge A.; Valentine, Joan Selverstone & Zhu, Haining
System: The UNT Digital Library

Oral History Interview with J. Frank Rollins, July 20, 1996

Access: Use of this item is restricted to the UNT Community
Interview with J. Frank Rollins, an oilman and a geophysicist, concerning his work experience with Petty Geophysical Engineering Company doing refraction seismic work; his employment with Geophysical Service, Inc.; doing reflection and refraction work in 1936; oil exploration in South America; work in oil field instrumentation equipment; work as a "computer" interpreting geological data; founding of Rayflex Exploration Company in 1948; technological developments for oil field exploration; geochemical surveying; the sale of Rayflex to Phillips-Eckhart in 1962; his work as a geophysical consultant; the application of oil field technology to national defense; German espionage activity in South America during World War II; and pro-German activity in South Louisiana during World War II.
Date: July 20, 1996
Creator: Daniels, John D. & Rollins, J. Frank
System: The UNT Digital Library
Clean Cities Award Winning Coalition: Coachella Valley (open access)

Clean Cities Award Winning Coalition: Coachella Valley

Southern California's Coachella Valley became a Clean Cities region in 1996. Since then, they've made great strides. SunLine Transit, the regional public transit provider, was the first transit provider to replace its entire fleet with compressed natural gas buses. They've also built the foundation for a nationally recognized model in the clean air movement, by partnering with Southern California Gas Company to install a refueling station and developing a curriculum for AFV maintenance with the College of the Desert. Today the valley is home to more than 275 AFVs and 15 refueling stations.
Date: May 20, 1999
Creator: Kaiser, ICF
System: The UNT Digital Library
Clean Cities Award Winning Coalition: Greater Long Island (open access)

Clean Cities Award Winning Coalition: Greater Long Island

This coalition was the culmination a two-year joint effort by Long Island Lighting Company and the Long Island Regional Planning Board. The group's first alternative fuel project was a single fill compressed natural gas station and a converted Chevrolet Caprice. Since then, the coalition has made steady progress in the alternative fuel and alternative fuel vehicle (AFV) market. They have over 400 AFVs and 21 fueling stations in their operating area. Thanks to strong partnerships with local public and private organizations, they've also passed some of the most progressive state tax incentive legislation for AFVs in the country.
Date: May 20, 1999
Creator: Kaiser, ICF
System: The UNT Digital Library
Clean Cities Award Winning Coalition: Greater Philadelphia (open access)

Clean Cities Award Winning Coalition: Greater Philadelphia

Always going beyond expectations, the Greater Philadelphia Clean Cities Program provides its stakeholders with excellent resources to implement alternative fuel projects. They are known as one of the most successful coalitions in the Clean Cities Program, and are a member-funded organization comprised of large government organizations, utilities, and non-profit groups in the Philadelphia metropolitan area. The coalition aggressively promotes alternative fuel vehicle acquisitions; their public outreach efforts target all stakeholders and provide numerous resources to advance the alternative fuel choice.
Date: May 20, 1999
Creator: Kaiser, ICF
System: The UNT Digital Library
Clean Cities Award Winning Coalition: Salt Lake City (open access)

Clean Cities Award Winning Coalition: Salt Lake City

Since its designation as a national Clean City in 1994, Salt Lake Clean Cities has put more than 2,600 alternative fuel vehicles (AFVs) on community streets. The 82 business, nonprofit, and government agencies that comprise the coalition are all dedicated to cleaning the air by reducing vehicle exhaust. Salt Lake Clean Cities has the third largest compressed natural gas and propane-refueling infrastructure in the country, with 98 locations available. They sponsor an annual ''Spring Soiree'' to increase public awareness about the program and educate the public about the benefits of alternative fuel and AFVs.
Date: May 20, 1999
Creator: Kaiser, ICF
System: The UNT Digital Library
Technology Cooperation Agreement Pilot Project (TCAPP) (open access)

Technology Cooperation Agreement Pilot Project (TCAPP)

The Technology Cooperation Agreement Pilot Project (TCAPP) is helping developing countries design and implement actions to attract investment in clean energy technologies that will meet their economic development goals, while mitigating greenhouse gas emissions. TCAPP was launched by three US government agencies -- the US Agency for International Development (USAID), the US Environmental Protection Agency (USEPA), and the US Department of Energy (USDOE) -- in August 1997 to establish a model for climate change technology cooperation with developing and transition countries. This report describes the TCAPP approach and the significant progress made by the participating countries.
Date: October 20, 1999
Creator: Keegan, P. & Benioff, R.
System: The UNT Digital Library
Introduction to Culture and Language of Kom (open access)

Introduction to Culture and Language of Kom

This book gives an overview of the canon of Kom folklore and customs such as weaving, hunting, traditional clothing, domestication of animals, and social practices like marriage, kinship, and naming children.
Date: March 20, 1990
Creator: Kilong, Mangpu
System: The UNT Digital Library

Oral History Interview with William Coffey, May 20, 1996

Access: Use of this item is restricted to the UNT Community
Interview with William Coffey, a Navy WWII veteran from Hopkins County, Texas. Coffey discusses joining the Navy in 1937, boot camp in San Diego, service aboard the USS Oklahoma (BB-37), transfer to submarines in the Philippines, the bombing of Cavite Navy Yard at the start of the war, assignment to the S-41 as a cook, combat around the Solomon Islands, attaining submarine qualifications, patrolling the northern Pacific, the character of the crew, transfer to the USS Sterlet (SS-392), patrols, medical leave, and service postwar.
Date: May 20, 1998
Creator: Maglaughlin, Barry & Coffey, William
System: The UNT Digital Library

Oral History Interview with Joe L. Atkins, June 20, 1995

Access: Use of this item is restricted to the UNT Community
Interview with educator Joe L. Atkins from Jefferson, Texas. In the interview, Atkins discusses his experiences and role in the desegregation of North Texas State College in the 1950's. He also recollects memories such as his rejection for admission, the Atkins v. Matthews case, early civil rights activities with the NAACP Youth Council in Dallas, and his decision to attend the Texas Western College. Atkins comments on several civil rights leaders such as Juanita Craft, Thurgood Marshall, and W. H. Durham, and also on several school administrators at the North Texas State College.
Date: June 20, 1995
Creator: Marcello, Ronald E. & Atkins, Joe L.
System: The UNT Digital Library
NREL PV working with industry, 1st Quarter 1999 (open access)

NREL PV working with industry, 1st Quarter 1999

This issue of PV Working with Industry profiles the participants in the Photovoltaic Manufacturing Technology (PVMaT) project.
Date: May 20, 1999
Creator: Moon, S.
System: The UNT Digital Library
Alternative Fuel News, Vol. 2, No. 7 (open access)

Alternative Fuel News, Vol. 2, No. 7

What's in store for alternative Fuels and advanced technology vehicles in the new millennium? The Clean Cities Coalitions now operate more than 240,000 alternative fuel vehicles in both public and private sectors and have access to more than 4,000 alternative refueling stations. DOE recently announced the selection of 15 proposals that will receive just under $1.7 million in financial assistance to help expand DOE's information dissemination and public outreach efforts for alternative fuels and advanced transportation technologies.
Date: May 20, 1999
Creator: National Renewable Energy Laboratory (U.S.)
System: The UNT Digital Library

Oral History Interviews with Raymond E. "Tex" Roberts, 1990

Access: Use of this item is restricted to the UNT Community
Interviews with Tex Roberts, executive director of the Texas Osteopathic Medical Association from Fort Worth, Texas. Roberts discusses his early career in journalism, joining TOMA, his duties as executive director, issues with the California Medical Association and Texas Medical Association, work with the Texas College of Osteopathic Medicine and establishing a school, related Texas state legislation, various figures he worked with, and the Medical Practice Act.
Date: June 20, 1990
Creator: Rafes, Richard & Roberts, Raymond E. (Tex)
System: The UNT Digital Library
Facilities Fact Book: Texas Public Universities, Health-Related Institution, and Technical Colleges, 1996 (open access)

Facilities Fact Book: Texas Public Universities, Health-Related Institution, and Technical Colleges, 1996

Annual compilation of information and statistics related to educational facilities at public colleges and universities in Texas, including space usage and maintenance, campus planning, and other relevant data.
Date: June 20, 1997
Creator: Texas Higher Education Coordinating Board. Campus Planning Office
System: The Portal to Texas History
[Memorial record: William H., Jr. (Bill) Nelson] (open access)

[Memorial record: William H., Jr. (Bill) Nelson]

A memorial record for William H., Jr. (Bill) Nelson listing out the people in attendance of his services.
Date: February 20, 1990
Creator: unknown
System: The UNT Digital Library