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Divisions, Areas, and Ensembles - Instrumental Studies - Strings - Harps - Music at Noon
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Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 96, No. 43, Ed. 1 Thursday, November 11, 2010
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 11, 2010
Creator:
Harmon, C. L.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
An Effective Theory of Dirac Dark Matter
A stable Dirac fermion with four-fermion interactions to leptons suppressed by a scale {Lambda} {approx} 1 TeV is shown to provide a viable candidate for dark matter. The thermal relic abundance matches cosmology, while nuclear recoil direct detection bounds are automatically avoided in the absence of (large) couplings to quarks. The annihilation cross section in the early Universe is the same as the annihilation in our galactic neighborhood. This allows Dirac fermion dark matter to naturally explain the positron ratio excess observed by PAMELA with a minimal boost factor, given present astrophysical uncertainties. We use the Galprop program for propagation of signal and background; we discuss in detail the uncertainties resulting from the propagation parameters and, more importantly, the injected spectra. Fermi/GLAST has an opportunity to see a feature in the gamma-ray spectrum at the mass of the Dirac fermion. The excess observed by ATIC/PPB-BETS may also be explained with Dirac dark matter that is heavy. A supersymmetric model with a Dirac bino provides a viable UV model of the effective theory. The dominance of the leptonic operators, and thus the observation of an excess in positrons and not in anti-protons, is naturally explained by the large hypercharge and low …
Date:
June 11, 2010
Creator:
Harnik, Roni & Kribs, Graham D.
Object Type:
Article
System:
The UNT Digital Library
Signals of New Physics in the Underlying Event
LHC searches for new physics focus on combinations of hard physics objects. In this work we propose a qualitatively different soft signal for new physics at the LHC - the 'anomalous underlying event'. Every hard LHC event will be accompanied by a soft underlying event due to QCD and pile-up effects. Though it is often used for QCD and monte carlo studies, here we propose the incorporation of an underlying event analysis in some searches for new physics. An excess of anomalous underlying events may be a smoking-gun signal for particular new physics scenarios such as 'quirks' or 'hidden valleys' in which large amounts of energy may be emitted by a large multiplicity of soft particles. We discuss possible search strategies for such soft diffuse signals in the tracking system and calorimetry of the LHC experiments. We present a detailed study of the calorimetric signal in a concrete example, a simple quirk model motivated by folded supersymmetry. In these models the production and radiative decay of highly excited quirk bound states leads to an 'antenna pattern' of soft unclustered energy. Using a dedicated simulation of a toy detector and a 'CMB-like' multipole analysis we compare the signal to the expected …
Date:
June 11, 2010
Creator:
Harnik, Roni & Wizansky, Tommer
Object Type:
Article
System:
The UNT Digital Library
The Longhorn Express (Harper, Tex.), Vol. 13, No. 2, Ed. 1 Thursday, November 11, 2010
Student newspaper of Harper Independent School District in Harper, Texas that includes school news and information along with advertising.
Date:
November 11, 2010
Creator:
Harper Independent School District Journalism Class
Object Type:
Newspaper
System:
The Portal to Texas History
Lake Granbury and Lake Whitney Assessment Initiative Final Scientific/Technical Report Summary
A team of Texas AgriLife Research, Baylor University and University of Texas at Arlington researchers studied the biology and ecology of Prymnesium parvum (golden algae) in Texas lakes using a three-fold approach that involved system-wide monitoring, experimentation at the microcosm and mesocosm scales, and mathematical modeling. The following are conclusions, to date, regarding this organismâs ecology and potential strategies for mitigation of blooms by this organism. In-lake monitoring revealed that golden algae are present throughout the year, even in lakes where blooms do not occur. Compilation of our field monitoring data with data collected by Texas Parks and Wildlife and Brazos River Authority (a period spanning a decade) revealed that inflow and salinity variables affect bloom formations. Thresholds for algae populations vary per lake, likely due to adaptations to local conditions, and also to variations in lake-basin morphometry, especially the presence of coves that may serve as hydraulic storage zones for P. parvum populations. More specifically, our in-lake monitoring showed that the highly toxic bloom that occurred in Lake Granbury in the winter of 2006/2007 was eliminated by increased river inflow events. The bloom was flushed from the system. The lower salinities that resulted contributed to golden algae not blooming …
Date:
October 11, 2010
Creator:
Harris, B.L.; Roelke, Daniel; Brooks, Bryan & Grover, James
Object Type:
Report
System:
The UNT Digital Library
[Clipping: Female WWII pilots awarded medals and Victoria woman honored]
Newspaper clippings of two articles about female pilots being honored for their service in World War II, including receiving the Congressional Gold Medal in Washington D.C. Portions of advertisements and other articles are visible on the backs of the clippings, including a school advertisement, a Dillard's advertisement, and an article about drug addiction.
Date:
March 11, 2010
Creator:
Hefling, Kimberly & Velasquez, J. J.
Object Type:
Clipping
System:
The Portal to Texas History
The Clifton Record (Clifton, Tex.), Vol. 116, No. 32, Ed. 1 Wednesday, August 11, 2010
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
August 11, 2010
Creator:
Henry, Mark
Object Type:
Newspaper
System:
The Portal to Texas History
Rains County Leader (Emory, Tex.), Vol. 123, No. 47, Ed. 1 Tuesday, May 11, 2010
Weekly newspaper from Emory, Texas that includes local, state, and national news along with advertising.
Date:
May 11, 2010
Creator:
Hill, Earl Clyde, Jr.
Object Type:
Newspaper
System:
The Portal to Texas History
Garber Billings News (Garber, Okla.), Vol. 110, No. 15, Ed. 1 Thursday, February 11, 2010
Weekly newspaper from Garber, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 11, 2010
Creator:
Hogan, Vickie Lee
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Garber Billings News (Garber, Okla.), Vol. 110, No. 19, Ed. 1 Thursday, March 11, 2010
Weekly newspaper from Garber, Oklahoma that includes local, state, and national news along with advertising.
Date:
March 11, 2010
Creator:
Hogan, Vickie Lee
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Garber Billings News (Garber, Okla.), Vol. 111, No. 3, Ed. 1 Thursday, November 11, 2010
Weekly newspaper from Garber, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 11, 2010
Creator:
Hogan, Vickie Lee
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Supreme Court Nominations Not Confirmed, 1789-2009
From 1789 through 2009, Presidents submitted 159 nominations to Supreme Court positions. Of these, 36 were not confirmed by the Senate. This report provides a summary of these unsuccessful nominations and the factors that lead to them.
Date:
May 11, 2010
Creator:
Hogue, Henry B.
Object Type:
Report
System:
The UNT Digital Library
Senior Recital: 2010-03-11 - James H. Holt, alto and tenor saxophones and Shih-Chun Lee, guitar
Access:
Use of this item is restricted to the UNT Community
Recital presented at the UNT College of Music Kenton Hall in partial fulfillment of the Bachelor of Music (BM) degree.
Date:
March 11, 2010
Creator:
Holt, James H. & Lee, Shih-Chun
Object Type:
Sound
System:
The UNT Digital Library
The Swisher County News (Tulia, Tex.), Vol. 2, No. 17, Ed. 1 Tuesday, May 11, 2010
Weekly newspaper from Tulia, Texas that includes local, state, and national news along with extensive advertising.
Date:
May 11, 2010
Creator:
Hooten, Patsy
Object Type:
Newspaper
System:
The Portal to Texas History
Compression and strong rarefaction in high power impulse magnetron sputtering discharges
Gas compression and strong rarefaction have been observed for high power impulse magnetron sputtering (HIPIMS) discharges using a copper target in argon. Time-resolved ion saturation currents of 35 probes were simultaneously recorded for HIPIMS discharges operating far above the self-sputtering runaway threshold. The argon background pressure was a parameter for the evaluation of the spatial and temporal development of the plasma density distribution. The data can be interpreted by a massive onset of the sputtering flux (sputter wind) that causes a transient densification of the gas, followed by rarefaction and the replacement of gas plasma by the metal plasma of sustained self-sputtering. The plasma density pulse follows closely the power pulse at low pressure. At high pressure, the relatively remote probes recorded a density peak only after the discharge pulse, indicative for slow, diffusive ion transport.
Date:
November 11, 2010
Creator:
Horwat, David & Anders, Andre
Object Type:
Article
System:
The UNT Digital Library
Cadmium Manganese Telluride (Cd1-xMnxTe): A potential material for room-temperature radiation detectors
Cadmium Manganese Telluride (CdMnTe) recently emerged as a promising material for room-temperature X- and gamma-ray detectors. It offers several potential advantages over CdZnTe. Among them is its optimal tunable band gap ranging from 1.7-2.2 eV, and its relatively low (< 50%) content of Mn compared to that of Zn in CdZnTe that assures this favorable band-gap range. Another important asset is the segregation coefficient of Mn in CdTe that is approximately unity compared to 1.35 for Zn in CdZnTe, so ensuring the homogenous distribution of Mn throughout the ingot; hence, a large-volume stoichiometric yield is attained. However, some materials issues primarily related to the growth process impede the production of large, defect-free single crystals. The high bond-ionicity of CdMnTe entails a higher propensity to crystallize into a hexagonal structure rather than to adopt the expected zinc-blend structure, which is likely to generate twins in the crystals. In addition, bulk defects generate in the as-grown crystals due to the dearth of high-purity Mn, which yields a low-resistivity material. In this presentation, we report on our observations of such material defects in current CdMnTe materials, and our evaluation of its potential as an alternative detector material to the well-known CdZnTe detectors. We …
Date:
July 11, 2010
Creator:
Hossain, A.; Cui, Y.; Bolotnikov, A.; Camarda, G.; Yang, G.; Kim, K. H. et al.
Object Type:
Article
System:
The UNT Digital Library
The Yellow Jacket (Brownwood, Tex.), Vol. 100, No. 9, Ed. 1 Thursday, February 11, 2010
Weekly student newspaper from Howard Payne University in Brownwood, Texas that includes local, state and campus news along with advertising.
Date:
February 11, 2010
Creator:
Howard Payne University
Object Type:
Newspaper
System:
The Portal to Texas History
REPORT ON QUALITATIVE VALIDATION EXPERIMENTS USING LITHIUM-ALUMINUM LAYERED DOUBLE-HYDROXIDES FOR THE REDUCTION OF ALUMINUM FROM THE WASTE TREATMENT PLANT FEEDSTOCK
A process for removing aluminum from tank waste simulants by adding lithium and precipitating Li-Al-dihydroxide (Lithiumhydrotalcite, [LiAl{sub 2}(OH){sub 6}]{sup +}X{sup -}) has been verified. The tests involved a double-shell tank (DST) simulant and a single-shell tank (SST) simulant. In the case of the DST simulant, the product was the anticipated Li-hydrotalcite. For the SST simulant, the product formed was primarily Li-phosphate. However, adding excess Li to the solution did result in the formation of traces of Li-hydrotalcite. The Li-hydrotalcite from the DST supernate was an easily filterable solid. After four water washes the filter cake was a fluffy white material made of < 100 {micro}m particles made of smaller spheres. These spheres are agglomerates of {approx} 5 {micro}m diameter platelets with < 1 {micro}m thickness. Chemical and mineralogical analyses of the filtrate, filter cake, and wash waters indicate a removal of 90+ wt% of the dissolved Al for the DST simulant. For the SST simulant, the main competing reaction to the formation of lithium hydrotalcite appears to be the formation of lithium phosphate. In case of the DST simulant, phosphorus co-precipitated with the hydrotalcite. This would imply the added benefit of the removal of phosphorus along with aluminum in the …
Date:
May 11, 2010
Creator:
Huber, H. J.; Duncan, J. B. & Cooke, G. A.
Object Type:
Report
System:
The UNT Digital Library
Mannford Eagle (Mannford, Okla.), Vol. 53, No. 11, Ed. 1 Wednesday, August 11, 2010
Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 11, 2010
Creator:
Hughes, Dustin
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Daily (Norman, Okla.), Vol. 95, No. 96, Ed. 1 Thursday, February 11, 2010
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
February 11, 2010
Creator:
Hughes, Jamie
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Daily (Norman, Okla.), Vol. 95, No. 116, Ed. 1 Thursday, March 11, 2010
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
March 11, 2010
Creator:
Hughes, Jamie
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Field Summary Report for Remedial Investigation of Hanford Site Releases to the Columbia River, Hanford Site, Washington
This report summarizes field sampling activities conducted in support of WCH’s Remedial Investigation of Hanford Site Releases to the Columbia River. This work was conducted form 2008 through 2010. The work included preliminary mapping and measurement of Hanford Site contaminants in sediment, pore water, and surface water located in areas where groundwater upwelling were found.
Date:
August 11, 2010
Creator:
Hulstrom, L. C.
Object Type:
Report
System:
The UNT Digital Library
New Physics Search in the LHCb Era
The authors present theoretical and experimental preparations for an indirect search for new physics (NP) using the rare decay {bar B}{sub d} {yields} {bar K}*{sup 0}{mu}{sup +}{mu}{sup -}. They design new observables with very small theoretical uncertainties and good experimental resolution.
Date:
June 11, 2010
Creator:
Hurth, Tobias
Object Type:
Article
System:
The UNT Digital Library
Flavour-Violating Gluino and Squark Decays
We consider scenarios with large flavour violating entries in the squark mass matrices focusing on the mixing between second and third generation squarks. These entries govern both, flavour violating low energy observables on the one hand and squark and gluino decays on the other hand. We first discuss the constraints on the parameter space due to the recent data on B mesons from the B factories and Tevatron. We then consider flavour violating squark and gluino decays and show that they can still be typically of order 10% despite the stringent constraints from low energy data. Finally we briefly comment on the impact for searches and parameter determinations at future collider experiments such as the upcoming LHC or a future International Linear Collider.
Date:
June 11, 2010
Creator:
Hurth, Tobias & Porod, Werner
Object Type:
Article
System:
The UNT Digital Library