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[18th annual "Black Music and the Civil Rights Concert" live performance]
Video recording from The Black Academy of Arts and Letters recorded during their 18th annual "Black Music and the Civil Rights" live concert event held at the Meyerson Symphony center on January 14th, 2001. The footage shows a large 200-voice choir accompanied by featured vocalist Patti Austin.
Date:
January 14, 2001
Creator:
King, Curtis & Austin, Patti
Object Type:
Video
System:
The UNT Digital Library
[18th annual "Black Music and the Civil Rights" live concert audio tape]
Audio cassette of the opening remarks for the 18th annual "Black Music and the Civil Rights" live concert event held at the Meyerson Symphony center on January 14th, 2001, sponsored by The Black Academy of Arts and Letters.
Date:
January 14, 2001
Creator:
unknown
Object Type:
Sound
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 101, No. 261, Ed. 1 Sunday, January 14, 2001
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 14, 2001
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Alvin Sun-Advertiser (Alvin, Tex.), Vol. 110, No. 4, Ed. 1 Sunday, January 14, 2001
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
January 14, 2001
Creator:
Schwind, Jim & Holton, Kathleen
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 79, No. 49, Ed. 1 Sunday, January 14, 2001
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
January 14, 2001
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
The Express-Star (Chickasha, Okla.), Ed. 1 Sunday, January 14, 2001
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 14, 2001
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Gauge unification in higher dimensions
A complete 5-dimensional SU(5) unified theory is constructed which, on compactification on the orbifold with two different Z{sub 2}'s (Z{sub 2} and Z{sub 2}{prime}), yields the minimal supersymmetric standard model. The orbifold accomplishes SU(5) gauge symmetry breaking, doublet-triplet splitting, and a vanishing of proton decay from operators of dimension 5. Until 4d supersymmetry is broken, all proton decay from dimension 4 and dimension 5 operators is forced to vanish by an exact U(1){sub R} symmetry. Quarks and leptons and their Yukawa interactions are located at the Z{sub 2} orbifold fixed points, where SU(5) is unbroken. A new mechanism for introducing SU(5) breaking into the quark and lepton masses is introduced, which originates from the SU(5) violation in the zero-mode structure of bulk multiplets. Even though SU(5) is absent at the Z{sub 2}{prime} orbifold fixed point, the brane threshold corrections to gauge coupling unification are argued to be negligibly small, while the logarithmic corrections are small and in a direction which improves the agreement with the experimental measurements of the gauge couplings. Furthermore, the X gauge boson mass is lowered, so that p {yields} e{sup +}{pi}{sup 0} is expected with a rate within about one order of magnitude of the current …
Date:
January 14, 2001
Creator:
Hall, Lawrence & Nomura, Yasunori
Object Type:
Article
System:
The UNT Digital Library
The influence of cut off lows on sulfate burdens over the North Atlantic during April, 1987
The authors have presented examples from a modeling study of the development of sulfur burdens over North America, the North Atlantic Ocean and Europe during April, 1987 using observation-derived meteorological data to represent the actual conditions for this period, focusing on the influence of cut-off lows on SO{sub 2} and sulfate column burdens over the North Atlantic Ocean. The analysis demonstrates that these systems can serve either as sources or sinks of sulfate, and that the major factor governing their resulting effect is the position during its formative stages relative to (a) sources of moisture, and (b) sulfur emissions, which regulates the availability of sulfur, cloud liquid water for sulfur oxidation, and the amount of precipitation for sulfate removal produced in the later stages of the life cycle.
Date:
January 14, 2001
Creator:
Benkovitz, C. M.; Miller, M. A.; Schwartz, S. E. & Kwon, O. U.
Object Type:
Article
System:
The UNT Digital Library
An investigation of the effect of sulfate on cloud microphysics using a chemistry/transport model
Here the authors have used the output of a chemistry/transport model to identify a situation in which sulfate aerosol from industrial sources may be expected to exert a strong influence on cloud microphysical and radiative properties in an oceanic area that is well displaced from source regions. Pertinent cloud microphysical properties (optical depth and cloud drop radius) are inferred from radiance data obtained from satellite remote sensing. Comparison of these quantities in situations where the model indicates the presence or absence of industrial sulfate has allowed identification of the expected signature of one aerosol indirect effect--an increase in droplet number concentration and concomitant decrease in droplet radii, on a synoptic scale. Although the information obtained on changes in cloud optical depth is too meager to draw conclusions regarding radiative forcing, there is no doubt that the cloud microphysical properties are influenced by the incursion of continental sulfate aerosol in a way that is consistent with that expected by the Twomey indirect forcing mechanism.
Date:
January 14, 2001
Creator:
Wei, H. D.; Green, R.; Schwartz, S. E. & Benkovitz, C. M.
Object Type:
Article
System:
The UNT Digital Library
Levelland and Hockley County News-Press (Levelland, Tex.), Vol. 23, No. 83, Ed. 1 Sunday, January 14, 2001
Semiweekly newspaper from Levelland, Texas that includes local, state, and national news along with advertising.
Date:
January 14, 2001
Creator:
Rigg, John
Object Type:
Newspaper
System:
The Portal to Texas History
[E-mail from Nancy Walkup Reynolds to Melinda Mayer, January 14, 2001]
An e-mail from Nancy Walkup Reynolds to Melinda Mayer about clarifying information from an earlier e-mail.
Date:
January 14, 2001
Creator:
Reynolds, Nancy Walkup
Object Type:
Letter
System:
The UNT Digital Library
The Panola Watchman (Carthage, Tex.), Vol. 128, No. 5, Ed. 1 Sunday, January 14, 2001
Semiweekly newspaper from Carthage, Texas that includes local, state, and national news along with advertising.
Date:
January 14, 2001
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Polk County Enterprise (Livingston, Tex.), Vol. 119, No. 4, Ed. 1 Sunday, January 14, 2001
Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date:
January 14, 2001
Creator:
White, Barbara
Object Type:
Newspaper
System:
The Portal to Texas History
RHIC PERFORMANCE.
The Brookhaven Relativistic Heavy Ion Collider (RHIC) is the first hadron accelerator and collider consisting of two independent rings. It is designed to operate at high collision luminosity over a wide range of beam energies and with particle species ranging from polarized protons to heavy ions. Construction of RHIC was officially completed in 1999. An overview of the status of commissioning and machine performance for the first operation period with gold beams is given.
Date:
January 14, 2001
Creator:
Roser, T.
Object Type:
Article
System:
The UNT Digital Library
Seminole Sentinel (Seminole, Tex.), Vol. 94, No. 26, Ed. 1 Sunday, January 14, 2001
Semiweekly newspaper from Seminole, Texas that includes local, state, and national news along with extensive advertising.
Date:
January 14, 2001
Creator:
Dow, M. Gene & Fisher, David
Object Type:
Newspaper
System:
The Portal to Texas History
[Wheeler Avenue Baptist Church Bulletin: January 14, 2001]
Church bulletin listing the order of worship for the 7:30 and 11:00 Sunday morning services at the Wheeler Avenue Baptist Church, as well as various notes about upcoming events, congregational news, and other information of relevance to church members.
Date:
January 14, 2001
Creator:
Wheeler Avenue Baptist Church (Houston, Tex.)
Object Type:
Pamphlet
System:
The Portal to Texas History
Aging of Polyurethane Foam Insulation in Simulated Refrigerator Panels--Two-Year Results with Third-Generation Blowing Agents
Laboratory data are presented on the effect of constant-temperature aging on the apparent thermal conductivity of polyurethane foam insulation for refrigerators and freezers. The foam specimens were blown with HCFC-141b and with three of its potential replacements--HFC-134a, HFC-245fa, and cyclopentane. Specimens were aged at constant temperatures of 90 F, 40 F, and {minus}10 F. Thermal conductivity measurements were made on two types of specimens: full-thickness simulated refrigerator panels containing foam enclosed between solid plastic sheets, and thin slices of core foam cut from similar panels. Results are presented for the first two years of a multi-year aging study. Preliminary comparisons of measured data with predictions of a mathematical aging model are presented.
Date:
February 14, 2001
Creator:
Wilkes, K. E.
Object Type:
Article
System:
The UNT Digital Library
Alpha-null defocus: An optimum defocus condition with relevance for focal-series reconstruction
Two optimum defocus conditions are used in high-resolution transmission electron microscopy. Scherzer defocus produces an image of the specimen ''projected potential'' to the resolution of the microscope, and Lichte defocus minimizes dispersion. A third optimum defocus is best for focal-series reconstruction; alpha-null defocus maximizes transfer of high-frequency diffracted beam amplitudes into the microscope image. Beam transfer is confined by incident-beam convergence to a Gaussian ''packet'' of defocus values centered on the alpha-null defocus. For a diffracted beam hkl, with a spatial frequency of u, the envelope for incident beam convergence has null damping effect when defocus is set to -Cs. (wavelength.u)**2. On either side of this alpha-null defocus value, the damping effect of incident-beam convergence reduces diffracted-beam transfer. The position of alpha-null defocus for any spatial frequency depends only on the value of Cs, but defocus-packet width around the alpha-null defocus depends only on the convergence semi-angle. Under NCEM OAM (one-Angstrom microscope) conditions, a [110] diamond image with the correct 0.89A spacing appears when the Si (004) alpha-null defocus is selected. The alpha-null defocus should be included as the (furthest underfocus) limit for all high-resolution focal series reconstruction.
Date:
February 14, 2001
Creator:
O'Keefe, Michael A.
Object Type:
Article
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 101, No. 288, Ed. 1 Wednesday, February 14, 2001
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 14, 2001
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, February 14, 2001
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
February 14, 2001
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Atomic Scale Structure of Ultrathin Magnetic Multilayers and Correlation with Resistance and Giant Magnetoresistance and Spin-Dependent Tunneling
ORNL's advanced characterization capabilities were used to determine the physical and chemical structure of magnetic multilayer films intended for application in non-volatile magnetic random access memory devices and as magnetic sensors. ORNL modeling capabilities were used to incorporate this information into a first-principles based tool that can be used to model the magnetic and transport properties of these films. This modeling capability should be useful for understanding and optimizing novel magnetoelectronic devices.
Date:
February 14, 2001
Creator:
Butler, W. H.
Object Type:
Report
System:
The UNT Digital Library
Aviation Competition: Regional Jet Service Yet to Reach Many Small Communities
A letter report issued by the General Accounting Office with an abstract that begins "The increasing numbers of regional jets (RJ) in operation have provided U.S. air carriers with opportunities to serve new and existing markets. With predominantly 50-seat aircraft, the carriers have initiated service to many large and medium-large communities but have provided less service to smaller communities. Service to small communities--to which the airlines now mostly operate turboprop aircraft--continues to be an important concern, because of the uncertainty about whether those markets may generate enough passenger traffic and revenue to be financially viable to sustain RJ operations. Eventually, smaller RJs may let carriers serve those smaller communities economically. Other questions also emerge about the impact of how the carriers will use their RJs. For example, the airlines could restrict capacity in a market by reducing service with larger mainline jets but increasing the number of RJ flights in a way that may inhibit entry by new competitors, allowing the airlines to charge fares higher than might exist in a more competitive market. Additionally, the growth in RJs has clearly contributed to an increasing problem with congestion, particularly in some locations like New York's LaGuardia Airport. But how the …
Date:
February 14, 2001
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 79, No. 80, Ed. 1 Wednesday, February 14, 2001
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 14, 2001
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
The Clifton Record (Clifton, Tex.), Vol. 106, No. 13, Ed. 1 Wednesday, February 14, 2001
Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
February 14, 2001
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History