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The CKM quark-mixing matrix (open access)

The CKM quark-mixing matrix

None
Date: April 1, 2006
Creator: Ligeti, Zoltan; Ceccucci, Augusto; Ligeti, Zoltan & Sakai, Yoshihide
System: The UNT Digital Library
Philosophy of Mind and the Problem of FreeWill in the Light of Quantum Mechanics. (open access)

Philosophy of Mind and the Problem of FreeWill in the Light of Quantum Mechanics.

Arguments pertaining to the mind-brain connection and to the physical effectiveness of our conscious choices have been presented in two recent books, one by John Searle, the other by Jaegwon Kim. These arguments are examined, and it is argued that the difficulties encountered arise from a defective understanding and application of a pertinent part of contemporary science, namely quantum mechanics.
Date: April 1, 2008
Creator: Stapp, Henry & Stapp, Henry P
System: The UNT Digital Library
Biomolecular Modification of Inorganic Crystal Growth (open access)

Biomolecular Modification of Inorganic Crystal Growth

The fascinating shapes and hierarchical designs of biomineralized structures are an inspiration to materials scientists because of the potential they suggest for biomolecular control over materials synthesis. Conversely, the failure to prevent or limit tissue mineralization in the vascular, skeletal, and urinary systems is a common source of disease. Understanding the mechanisms by which organisms direct or limit crystallization has long been a central challenge to the biomineralization community. One prevailing view is that mineral-associated macromolecules are responsible for either inhibiting crystallization or initiating and stabilizing non-equilibrium crystal polymorphs and morphologies through interactions between anionic moieties and cations in solution or at mineralizing surfaces. In particular, biomolecules that present carboxyl groups to the growing crystal have been implicated as primary modulators of growth. Here we review the results from a combination of in situ atomic force microscopy (AFM) and molecular modeling (MM) studies to investigate the effect of specific interactions between carboxylate-rich biomolecules and atomic steps on crystal surfaces during the growth of carbonates, oxalates and phosphates of calcium. Specifically, we how the growth kinetics and morphology depend on the concentration of additives that include citrate, simple amino acids, synthetic Asp-rich polypeptides, and naturally occurring Asp-rich proteins found in both …
Date: April 27, 2007
Creator: De Yoreo, J. J.
System: The UNT Digital Library
Solid Nitrogen at Extreme Conditions of High Pressure and Temperature (open access)

Solid Nitrogen at Extreme Conditions of High Pressure and Temperature

We review the phase diagram of nitrogen in a wide pressure and temperature range. Recent optical and x-ray diffraction studies at pressures up to 300 GPa and temperatures in excess of 1000 K have provided a wealth of information on the transformation of molecular nitrogen to a nonmolecular (polymeric) semiconducting and two new molecular phases. These newly found phases have very large stability (metastability) range. Moreover, two new molecular phases have considerably different orientational order from the previously known phases. In the iota phase (unlike most of other known molecular phases), N{sub 2} molecules are orientationally equivalent. The nitrogen molecules in the theta phase might be associated into larger aggregates, which is in line with theoretical predictions on polyatomic nitrogen.
Date: April 5, 2004
Creator: Goncharov, A. & Gregoryanz, E.
System: The UNT Digital Library
A Serving of Fun! (open access)

A Serving of Fun!

The document is a visual guide for understanding and remembering serving sizes for various food groups. It is "based on recommendations for active children aged 7 to 10" (p. 1).
Date: April 2007
Creator: Staples, Todd
System: The Portal to Texas History
Local Governments to Receive $ 417 Million in Sales Tax Revenue (open access)

Local Governments to Receive $ 417 Million in Sales Tax Revenue

This document provides information on the distribution of $417 million in sales tax revenue to local governments.
Date: April 6, 2011
Creator: Combs, Susan
System: The Portal to Texas History
Employment After Retirement (open access)

Employment After Retirement

This document contains information for of Teacher Retirement System of Texas members who are not yet retired, already retired, and disability retired.
Date: April 2012
Creator: Teacher Retirement System of Texas
System: The Portal to Texas History
Managing External Parasites of Texas Livestock and Poultry. (open access)

Managing External Parasites of Texas Livestock and Poultry.

This document provides information on managing external parasites in livestock and poultry.
Date: April 2000
Creator: Hoelscher, Clifford E.; Patrick, Carl D. & Robinson, James V.
System: The Portal to Texas History
Brain Injury (open access)

Brain Injury

This booklet was prepared and distributed by the Brain Injury Association of Texas to answer the questions of brain injured persons' family, friends, and caretakers.
Date: April 2004
Creator: Hutchison, Ruth
System: The Portal to Texas History
[National Register of Historic Places Nomination: Avenger Field] (open access)

[National Register of Historic Places Nomination: Avenger Field]

Nomination materials submitted to the National Register of Historic Places regarding Avenger Field near Sweetwater, Texas. The materials include a history of the field, maps, photographs, and other supporting documents, as well as documents about the nomination process and drafted text.
Date: April 15, 1996
Creator: Sweetwater Chamber of Commerce
System: The Portal to Texas History
[WASP Recognition Clippings Scrapbook] (open access)

[WASP Recognition Clippings Scrapbook]

Scrapbook filled mostly with newspaper clipping about Women Airforce Service Pilots gaining recognition for their war efforts and about WASP reunion activities.
Date: 1976-04-26/1986-09-29
Creator: unknown
System: The Portal to Texas History
[News Story Log: April 22 to July 11, 1974] (open access)

[News Story Log: April 22 to July 11, 1974]

Logbook from the KXAS-TV/NBC station in Fort Worth, Texas, documenting the names, locations, and run-times of video-taped news segments that aired each day from April through July in 1974.
Date: 1974-04/1974-07
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
System: The UNT Digital Library
Remote sensing of natural resources. Quarterly literature review, January--March 1979 (open access)

Remote sensing of natural resources. Quarterly literature review, January--March 1979

Information is presented under the following section headings: introduction; user guide; information sources; recent releases; and, literature review. The literature reviewed includes abstracts when available on the following subjects: general; geology; environmental quality; hydrology; vegetation; oceanography; regional planning and land use; data manipulation; and instrumentation and technology. An author index and document order form are included. (JGB)
Date: April 1979
Creator: unknown
System: The UNT Digital Library
Report on the Agricultural Experiment Stations, 1938 (open access)

Report on the Agricultural Experiment Stations, 1938

Volume provides a summary of the progress of each agricultural experiment station. Also includes statistics and selected studies.
Date: April 1939
Creator: United States. Office of Experiment Stations.
System: The UNT Digital Library
A Balancing Act: China’s Role in Climate Change (open access)

A Balancing Act: China’s Role in Climate Change

Climate change has reached the apex of the global agenda at a time when China faces significant development and energy security challenges. The political leadership and leading intellectuals are debating the direction of a new development pathway that provides both growth to meet development objectives, and dramatically reduces energy intensity and pollution. While the official position has not changed significantly, there are four key aspects that illustrate how climate change is conceived by the Chinese leadership. This signals that China may come to play a much more important role in global mitigation of climate change than was thought only a couple of years ago.
Date: April 1, 2009
Creator: Hallding, Karl; Han, Guoyi & Olsson, Marie
System: The UNT Digital Library
Travis County Deed Records: Deed Record 421 - Mechanics Liens (open access)

Travis County Deed Records: Deed Record 421 - Mechanics Liens

Recorded copies of liens filed by individuals or firms (lumber dealers, corporations, artisans, laborers, mechanics, or subcontractors) who provide labor or furnish materials to construct or repair houses, buildings, or levees, or for construction and repair of railroads, to insure payment for goods or services rendered, from April 1928 to April 1929. Shows county; names of contracting parties; type of construction or repairs to be completed; tract of land where improvement or construction to be made; contractual terms; date witnessed or executed; signatures of parties; notarization; and recording certificate, showing date filed, date recorded, and signature of county clerk or deputy. Some contracts also include assignment of liens to financial institutions. Arranged chronologically by date recorded.
Date: 1928-04/1929-04
Creator: Travis County (Tex.). Clerk's Office.
System: The Portal to Texas History
School lunch recipes using nonfat dry milk. (open access)

School lunch recipes using nonfat dry milk.

A collection of quantity recipes for school lunches using nonfat dry milk. Includes general directions for handling dried milk during the preparation stages.
Date: April 1948
Creator: United States. Bureau of Human Nutrition and Home Economics.
System: The UNT Digital Library
Farmer Jones' timber crop. (open access)

Farmer Jones' timber crop.

Tells a story of a farmer who looks into using his wooded lands for timber, and the process he must go through to accomplish that.
Date: April 1946
Creator: United States. Extension Service.
System: The UNT Digital Library
Potato growing in the South. (open access)

Potato growing in the South.

Provides detailed information on potato farming in 13 different southern states including cultivation and soil conservation practices, and identifying and controlling diseases and insects.
Date: April 1956
Creator: Dykstra, Theodore P. (Theodore Peter), 1896-1979 & Reid, W. J. (William John), 1902-
System: The UNT Digital Library
Photomail operation. (open access)

Photomail operation.

Describes procedures for signal photomail (microfilmed mail) service operations. Includes instructions for handling V-mail (personal correspondence) as well as official War Department photomail.
Date: April 1945
Creator: United States. War Department.
System: The UNT Digital Library
Quartermaster operations. (open access)

Quartermaster operations.

Describes the organization and functions of the U.S. Army Quartermaster Corps.
Date: April 29, 1943
Creator: United States. War Department.
System: The UNT Digital Library
Cranberry harvesting and handling. (open access)

Cranberry harvesting and handling.

Recommends methods of harvesting, handling, storing, and packing cranberries in preparation for market. Discusses the function of cooperative cranberry organizations in relation to sales and prices.
Date: April 1924
Creator: Franklin, Henry J. (Henry James), 1883-1958; Darrow, George M. (George McMillan), 1889- & Malde, O. G. (Ole Gustav), 1880-
System: The UNT Digital Library

Oral History Interview with William Havel, April 22, 1994

Access: Use of this item is restricted to the UNT Community
Interview with William Havel, an army veteran from Staten Island, New York. This interview recounts his experiences as an adopted child in a farm family and then as a corpsman at Tripler General Hospital during the Japanese attack at Pearl Harbor on December 7, 1941.
Date: April 22, 1994
Creator: Marcello, Ronald E. & Havel, William
System: The UNT Digital Library

Oral History Interview with Larry S. Hilliard, April 18, 1992

Access: Use of this item is restricted to the UNT Community
Interview with Larry S. Hilliard, army veteran and nurse from Kerens, Texas. This interview looks into his experiences as a nurse in Vietnam, 1970-71. Topics include: assignment to 18th surgical Hospital, Quang Tri; his typical workday; off-duty recreation; treatment of combat casualties; equipment and blood shortages; drug problems; morale; communications with his family; leave policies; work with Vietnamese civilians; treating enemy POWs; “short-time”; lasting effects of Vietnam experience.
Date: April 18, 1992
Creator: Houser, Cindy & Hilliard, Larry S.
System: The UNT Digital Library