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Understanding and engineering enzymes for enhanced biofuel production. (open access)

Understanding and engineering enzymes for enhanced biofuel production.

Today, carbon-rich fossil fuels, primarily oil, coal and natural gas, provide 85% of the energy consumed in the United States. The release of greenhouse gases from these fuels has spurred research into alternative, non-fossil energy sources. Lignocellulosic biomass is renewable resource that is carbon-neutral, and can provide a raw material for alternative transportation fuels. Plant-derived biomass contains cellulose, which is difficult to convert to monomeric sugars for production of fuels. The development of cost-effective and energy-efficient processes to transform the cellulosic content of biomass into fuels is hampered by significant roadblocks, including the lack of specifically developed energy crops, the difficulty in separating biomass components, the high costs of enzymatic deconstruction of biomass, and the inhibitory effect of fuels and processing byproducts on organisms responsible for producing fuels from biomass monomers. One of the main impediments to more widespread utilization of this important resource is the recalcitrance of cellulosic biomass and techniques that can be utilized to deconstruct cellulosic biomass.
Date: January 1, 2009
Creator: Simmons, Blake Alexander; Volponi, Joanne V.; Sapra, Rajat; Faulon, Jean-Loup Michel; Buffleben, George M. & Roe, Diana C.
Object Type: Report
System: The UNT Digital Library
UNEP 2008 Annual Report (open access)

UNEP 2008 Annual Report

The UNEP annual report provides an overview of UNEP's activities for the year of 2008. The report also reflects on the campaign theme for the run-up to the crucial negotiations in Copenhagen in December 2009, "United to combat climate change".
Date: 2009
Creator: United Nations Environment Programme
Object Type: Text
System: The UNT Digital Library
UNEP Year Book 2009: New Science in Our Changing Environment (open access)

UNEP Year Book 2009: New Science in Our Changing Environment

This publication provides an overview of global and regional environmental issues policy decisions during 2009.
Date: 2009
Creator: unknown
Object Type: Text
System: The UNT Digital Library
United States Reports, Volume 547: Cases Adjudged in The Supreme Court at October Term, 2005 (open access)

United States Reports, Volume 547: Cases Adjudged in The Supreme Court at October Term, 2005

Volume of the United States Reports containing the final decisions and opinions of the Supreme Court justices regarding cases between February 28 and June 20, 2006. Also includes notes regarding the members of the Supreme Court, orders, and other relevant materials. Index starts on page 1289.
Date: 2009
Creator: Wagner, Frank D.
Object Type: Book
System: The UNT Digital Library
United States Reports, Volume 548: Cases Adjudged in The Supreme Court at October Term, 2005 (open access)

United States Reports, Volume 548: Cases Adjudged in The Supreme Court at October Term, 2005

Volume of the United States Reports containing the final decisions and opinions of the Supreme Court justices regarding cases between June 22 Through September 28, 2006. Also includes notes regarding the members of the Supreme Court, orders, and other relevant materials. Index starts on page 1307.
Date: 2009
Creator: Wagner, Frank D.
Object Type: Book
System: The UNT Digital Library
United States Reports, Volume 549: Cases Adjudged in The Supreme Court at October Term, 2006 (open access)

United States Reports, Volume 549: Cases Adjudged in The Supreme Court at October Term, 2006

Volume of the United States Reports containing the final decisions and opinions of the Supreme Court justices regarding cases between October 2, 2006, and April 16, 2007. Also includes notes regarding the members of the Supreme Court, orders, and other relevant materials. Index starts on page 1503.
Date: 2009
Creator: Wagner, Frank D.
Object Type: Book
System: The UNT Digital Library
United States Statutes At Large, Volume 121, 2007 (open access)

United States Statutes At Large, Volume 121, 2007

United States Statutes at Large include the text of various legislation passed by Congress such as private and public laws, concurrent resolutions, and Constitutional amendments as well as proclamations, changes to the structure of government departments, etc. Indexes begin on page A1 after page 2819.
Date: 2009
Creator: United States. Congress.
Object Type: Legislative Document
System: The UNT Digital Library

University of North Texas

This is the official website for the University of North Texas. It includes all sites within the UNT domain and information about university admissions, financial aid, departments, research, athletics, libraries, administration, and student, faculty, and alumni resources.
Date: 2009
Creator: University of North Texas
Object Type: Website
System: The UNT Digital Library
University of North Texas Budget: 2009-2010, Volume 1 (open access)

University of North Texas Budget: 2009-2010, Volume 1

First part of the budget for the University of North Texas regarding funds in the 2009-2010 fiscal year. This volume contains a breakdown of expected profits and expenses for general university and administrative departments as well as individual colleges and departments.
Date: 2009
Creator: University of North Texas
Object Type: Book
System: The UNT Digital Library
University of North Texas Budget: 2009-2010, Volume 2 (open access)

University of North Texas Budget: 2009-2010, Volume 2

Second part of the budget for the University of North Texas regarding funds in the 2009-2010 fiscal year. This volume contains a breakdown of expected profits and expenses related to board designated funds, instructional fees, and service fees. Index starts on page 1257.
Date: 2009
Creator: University of North Texas
Object Type: Book
System: The UNT Digital Library
University of North Texas Investment Portfolio Summary: For The Period Ending December 31, 2009 (open access)

University of North Texas Investment Portfolio Summary: For The Period Ending December 31, 2009

Quarterly investment report from the University of North Texas includes information for the quarter ending in December 31 regarding deposits, bonds, endowments, and other financial investments. Information is broken down in tables and compiled into charts and graphs.
Date: January 2009
Creator: University of North Texas
Object Type: Report
System: The UNT Digital Library
University of North Texas Investment Portfolio Summary: For The Period Ending December 31, 2009 (open access)

University of North Texas Investment Portfolio Summary: For The Period Ending December 31, 2009

Quarterly investment report from the University of North Texas includes information for the quarter ending in December 31 regarding deposits, bonds, endowments, and other financial investments. Information is broken down in tables and compiled into charts and graphs.
Date: January 2009
Creator: University of North Texas
Object Type: Report
System: The UNT Digital Library
University of North Texas Libraries Grant History: 2000-2009 (open access)

University of North Texas Libraries Grant History: 2000-2009

This document lists all grants given to the University of North Texas Libraries from 2000 to 2009. The projects that were funded by these grants are summarized.
Date: 2009
Creator: Belden, Dreanna
Object Type: Text
System: The UNT Digital Library
University of North Texas President's Annual Report, 2008 (open access)

University of North Texas President's Annual Report, 2008

Annual report for the University of North Texas (UNT) includes an overview of research, programs of study, and accomplishments of university departments as well as statistical breakdowns of enrollment, fiscal expenditures, and other operational information.
Date: 2009
Creator: University of North Texas. Division of University Relations, Communications and Marketing.
Object Type: Report
System: The UNT Digital Library
University of North Texas Summary of Investments, 2009 (open access)

University of North Texas Summary of Investments, 2009

Annual investment report for the University of North Texas contains a breakdown of investment types with the "book value" and "market value" for each, as of August 31, 2009.
Date: 2009
Creator: University of North Texas
Object Type: Report
System: The UNT Digital Library
University of North Texas Summary of Investments, 2009 (open access)

University of North Texas Summary of Investments, 2009

Annual investment report for the University of North Texas contains a breakdown of investment types with the "book value" and "market value" for each, as of August 31, 2009.
Date: 2009
Creator: University of North Texas
Object Type: Report
System: The UNT Digital Library
University of North Texas System Budget: 2009-2010 (open access)

University of North Texas System Budget: 2009-2010

Budget for the University of North Texas System (including the UNT Denton, Texas campus, UNT System Center in Dallas, Texas and UNT Health Science Center in Fort Worth, Texas) regarding funds in the fiscal year 2009-2010, summarizing costs for institutional support, staff, board-designated expenses, and other items.
Date: 2009
Creator: University of North Texas System
Object Type: Book
System: The UNT Digital Library
University of North Texas System Combined Financial Report: 2009 (open access)

University of North Texas System Combined Financial Report: 2009

Financial report for the University of North Texas System (including the UNT Denton, Texas campus and the UNT Health Science Center in Fort Worth, Texas) contains information about revenues and expenditures for the organization during the 2008-2009 fiscal year. It includes general statements, schedules of accounts broken down by category, and other supplementary notes.
Date: 2009
Creator: University of North Texas System
Object Type: Report
System: The UNT Digital Library
UNT Research, Volume 18, 2009 (open access)

UNT Research, Volume 18, 2009

UNT Research magazine includes articles and notes about research at University of North Texas in various academic fields.
Date: 2009
Creator: University of North Texas
Object Type: Journal/Magazine/Newsletter
System: The UNT Digital Library
Unusual flux-distance relationship for pulsars suggested by analysis of the Australia national telescopy facility pulsar catalogue (open access)

Unusual flux-distance relationship for pulsars suggested by analysis of the Australia national telescopy facility pulsar catalogue

We analyze pulsar fluxes at 1400 MHz (S(1400)) and distances d taken from the Australia National Telescope Facility (ATNF) Pulsar Catalogue. Under the assumption that pulsar populations in different parts of the Galaxy are similar, we find that either (a) pulsar fluxes diminish with distance according to a non-standard power law (we suggest S(1400){proportional_to} 1/d rather than {proportional_to} 1/d{sup 2}) or (b) that there are very significant (i.e. order of magnitude) errors in the distance estimates quoted in the ATNF Catalogue. The former conclusion (a) supports a recent model for pulsar emission that has also successfully explained the frequency spectrum of the Crab pulsar over 16 orders of magnitude of frequency, whilst alternative (b) would necessitate a radical re-evaluation of both the dispersion method for estimating pulsar distances and current ideas about the distribution of pulsars within our Galaxy.
Date: January 1, 2009
Creator: Singleton, John; Perez, M R; Singleton, J; Ardavan, H & Ardavan, A.
Object Type: Article
System: The UNT Digital Library

[Up from the Cellar Artwork]

Photograph of an artwork titled "Up from the Cellar," standing out-of-doors on a grassy plain. The piece is a large, flat cabinet made from wood reclaimed from a farmhouse cellar. Five historic photos are displayed in a line down the center.
Date: 2009~
Creator: Wolf Creek Heritage Museum
Object Type: Image
System: The Portal to Texas History
[Up from the Cellar Description] (open access)

[Up from the Cellar Description]

Artist statement describing the background of the creation of a story cabinet titled "Up from the Cellar" and the history of the reclaimed materials that were used to make it.
Date: 2009~
Creator: Ricketts, Doug
Object Type: Text
System: The Portal to Texas History

[Up from the Ruins Artwork]

Photograph of an artwork titled "Up from the Ruins," standing out-of-doors on a grassy plain. The piece is a tall wooden cabinet with a point at the top; it has light-colored wood around the outside with lighter wood inset to create the cabinet portion. There are five linoleum and wallpaper designs reclaimed from a farmhouse displayed in the cabinet windows.
Date: 2009~
Creator: Wolf Creek Heritage Museum
Object Type: Image
System: The Portal to Texas History
[Up from the Ruins Description] (open access)

[Up from the Ruins Description]

Artist statement describing the background of the creation of a story cabinet titled "Up from the Ruins" and the history of the reclaimed materials that were used to make it.
Date: 2009~
Creator: Ricketts, Doug
Object Type: Text
System: The Portal to Texas History