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Search for Second-Class Currents in tau- -> omega.pi-.nu_tau (open access)

Search for Second-Class Currents in tau- -> omega.pi-.nu_tau

We report an analysis of {tau}{sup -} decaying into {omega}{pi}{sup -} {nu}{sub {tau}} with {omega} {yields} {pi}{sup +}{pi}{sup -}{pi}{sup 0} using a data sample containing nearly 320 million {tau} pairs collected with the BABAR detector at the PEP-II B-Factory. We find no evidence for second-class currents and we set an upper limit of 0.69% at 90% confidence level for the fraction of second-class currents in this decay mode.
Date: April 22, 2009
Creator: Aubert, B.
Object Type: Article
System: The UNT Digital Library
Local structure and site occupancy of Cd and Hg substitutions in CeTIn_5 (T=Co, Rh, Ir) (open access)

Local structure and site occupancy of Cd and Hg substitutions in CeTIn_5 (T=Co, Rh, Ir)

The CeTIn_5 superconductors (T=Co, Rh, or Ir) have generated great interest due to their relatively high transition temperatures, non-Fermi liquid behavior, and their proximity to antiferromagnetic order and quantum critical points. In contrast to small changes with the T-species, electron doping in CeT(In_1-x M_x)_5 with $M$=Sn and hole doping with Cd or Hg have a dramatic effect on the electronic properties at very low concentrations. The present work reports local structure measurements usingthe extended x-ray absorption fine-structure (EXAFS) technique that address the substituent atom distribution as a function of T, M, and x, in the vicinity of the superconducting phase. Together with previous measurements for M=Sn, the proportion of the $M$ atom residing on the In(1) site, f_\textrm In(1), increases in the order M=Cd, Sn, and Hg, ranging from about 40\percent to 70percent, showing a strong preference for each of these substituents to occupy the In(1) site (random occupation = 20percent). In addition, f_In(1) ranges from 70percent to 100percent for M=Hg in the order T=Co,Rh, and Ir. These fractions track the changes in the atomic radii of the various species, and help explain the sharp dependence of $T_c$ on substituting into the In site. However, it is difficult to reconcile …
Date: April 22, 2009
Creator: Booth, Corwin H.; Bauer, Eric. D.; Bianchi, Andrea D.; Ronning, Fillip; Thompson, Joe D.; Sarrao, John L. et al.
Object Type: Article
System: The UNT Digital Library
Decamethylytterbocene Complexes of Bipyridines and Diazabutadienes: Multiconfigurational Ground States and Open-Shell Singlet Formation (open access)

Decamethylytterbocene Complexes of Bipyridines and Diazabutadienes: Multiconfigurational Ground States and Open-Shell Singlet Formation

Partial ytterbium f-orbital occupancy (i.e., intermediate valence) and open-shell singlet formation are established for a variety of bipyridine and diazabutadiene adducts with decamethylytterbocene, (C5Me5)2Yb, abbreviated as Cp*2Yb. Data used to support this claim include ytterbium valence measurements using Yb LIII-edge X-ray absorption near-edge structure spectroscopy, magnetic susceptibility, and complete active space self-consistent field (CASSCF) multiconfigurational calculations, as well as structural measurements compared to density functional theory calculations. The CASSCF calculations indicate that the intermediate valence is the result of a multiconfigurational ground-state wave function that has both an open-shell singlet f13(?*)1, where pi* is the lowest unoccupied molecular orbital of the bipyridine or dpiazabutadiene ligands, and a closed-shell singlet f14 component. A number of other competing theories for the unusual magnetism in these materials are ruled out by the lack of temperature dependence of the measured intermediate valence. These results have implications for understanding chemical bonding not only in organolanthanide complexes but also for f-element chemistry in general, as well as understanding magnetic interactions in nanoparticles and devices.
Date: April 22, 2009
Creator: Booth, Corwin H.; Walter, Marc D.; Kazhdan, Daniel; Hu, Yung-Jin; Lukens, Wayne W.; Bauer, Eric D. et al.
Object Type: Article
System: The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 117, No. 79, Ed. 1 Wednesday, April 22, 2009 (open access)

Perry Daily Journal (Perry, Okla.), Vol. 117, No. 79, Ed. 1 Wednesday, April 22, 2009

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: April 22, 2009
Creator: Brown, Gloria
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 111, No. 205, Ed. 1 Wednesday, April 22, 2009 (open access)

The Altus Times (Altus, Okla.), Vol. 111, No. 205, Ed. 1 Wednesday, April 22, 2009

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: April 22, 2009
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
Coordination of Federal Water Research: Legislative Issues (open access)

Coordination of Federal Water Research: Legislative Issues

This report discusses the National Water Research and Development initiative Act of 2009, that would formally establish a federal inter agency committee to coordinate federal water research. It also discusses water research coordination and strategy.
Date: April 22, 2009
Creator: Carter, Nicole T.
Object Type: Report
System: The UNT Digital Library
Bounding CKM Mixing with a Fourth Family (open access)

Bounding CKM Mixing with a Fourth Family

CKM mixing between third family quarks and a possible fourth family is constrained by global fits to the precision electroweak data. The dominant constraint is from nondecoupling oblique corrections rather than the vertex correction to Z {yields} {bar b}b used in previous analyses. The possibility of large mixing suggested by some recent analyses of FCNC processes is excluded, but 3-4 mixing of the same order as the Cabbibo mixing of the first two families is allowed.
Date: April 22, 2009
Creator: Chanowitz, Michael S.
Object Type: Article
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 89, No. 110, Ed. 1 Wednesday, April 22, 2009 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 89, No. 110, Ed. 1 Wednesday, April 22, 2009

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: April 22, 2009
Creator: Clements, Clifford E.
Object Type: Newspaper
System: The Portal to Texas History

Doctoral Recital: 2009-04-22 - Bo Clifton, trombone

Recital presented at the UNT College of Music Concert Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date: April 22, 2009
Creator: Clifton, Bo
Object Type: Sound
System: The UNT Digital Library

Gender, Trauma, Forgiveness: Correlates of Coping Strategies in HIV+ Adults

This poster examines the relationships between trauma, forgiveness, and gender for the restoration of interpersonal relationships after conflict.
Date: April 22, 2009
Creator: Deaton, Kyle; Vosvick, Mark A. & Hill, Jonathan
Object Type: Poster
System: The UNT Digital Library
The Wylie News (Wylie, Tex.), Vol. 61, No. 49, Ed. 1 Wednesday, April 22, 2009 (open access)

The Wylie News (Wylie, Tex.), Vol. 61, No. 49, Ed. 1 Wednesday, April 22, 2009

Weekly newspaper from Wylie, Texas that includes local, state and national news along with advertising.
Date: April 22, 2009
Creator: Engbrock, Chad B.
Object Type: Newspaper
System: The Portal to Texas History
Disconnected Youth: A Look at 16- to 24-Year Olds Who Are Not Working or In School (open access)

Disconnected Youth: A Look at 16- to 24-Year Olds Who Are Not Working or In School

A young person's detachment from both the labor market and school is an indicator that he or she may not be adequately making the transition to adulthood. Referred to as "disconnected" in the social science literature, youth who are not working or in school may have difficulty gaining the skills and knowledge needed to attain self-sufficiency. The purpose of the report is to provide context for Congress about the characteristics of youth who are not working or in school, and the circumstances in which they live.
Date: April 22, 2009
Creator: Fernandes, Adrienne L. & Gabe, Thomas
Object Type: Report
System: The UNT Digital Library
The Rambler (Fort Worth, Tex.), Vol. 102, No. 11, Ed. 1 Wednesday, April 22, 2009 (open access)

The Rambler (Fort Worth, Tex.), Vol. 102, No. 11, Ed. 1 Wednesday, April 22, 2009

Weekly student newspaper from Texas Wesleyan University in Fort Worth, Texas that includes campus and local news along with advertising.
Date: April 22, 2009
Creator: Garcia, Martin
Object Type: Newspaper
System: The Portal to Texas History

Religious Coping, Self-Esteem, and Locus of Control: Mindfulness in an HIV+ Population

This poster examines how religious coping, self-esteem, and locus of control can affect mindfulness in people living with HIV.
Date: April 22, 2009
Creator: Hill, Jonathan; Vosvick, Mark A. & Hua, William Q.
Object Type: Poster
System: The UNT Digital Library
Mannford Eagle (Mannford, Okla.), Vol. 27, No. 48, Ed. 1 Wednesday, April 22, 2009 (open access)

Mannford Eagle (Mannford, Okla.), Vol. 27, No. 48, Ed. 1 Wednesday, April 22, 2009

Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.
Date: April 22, 2009
Creator: Hughes, Dustin
Object Type: Newspaper
System: The Gateway to Oklahoma History
Importance of Plasma Response to Non-axisymmetric Perturbations in Tokamaks (open access)

Importance of Plasma Response to Non-axisymmetric Perturbations in Tokamaks

Tokamaks are sensitive to deviations from axisymmetry as small as δB=B0 ~ 10-4. These non-axisymmetric perturbations greatly modify plasma confinement and performance by either destroying magnetic surfaces with subsequent locking or deforming magnetic surfaces with associated non-ambipolar transport. The Ideal Perturbed Equilibrium Code (IPEC) calculates ideal perturbed equilibria and provides important basis for understanding the sensitivity of tokamak plasmas to perturbations. IPEC calculations indicate that the ideal plasma response, or equiva- lently the effect by ideally perturbed plasma currents, is essential to explain locking experiments on National Spherical Torus eXperiment (NSTX) and DIII-D. The ideal plasma response is also important for Neoclassical Toroidal Viscosity (NTV) in non-ambipolar transport. The consistency between NTV theory and magnetic braking experiments on NSTX and DIII-D can be improved when the variation in the field strength in IPEC is coupled with generalized NTV theory. These plasma response effects will be compared with the previous vacuum superpositions to illustrate the importance. However, plasma response based on ideal perturbed equilibria is still not suffciently accurate to predict the details of NTV transport, and can be inconsistent when currents associated with a toroidal torque become comparable to ideal perturbed currents.
Date: April 22, 2009
Creator: Jong-kyu Park, Allen H. Boozer, Jonathan E. Menard, Andrea M. Garofalo, Michael J. Schaffer, Richard J. Hawryluk, Stanley M. Kaye, Stefan P. Gerhardt, Steve A. Sabbagh, and the NSTX Team
Object Type: Article
System: The UNT Digital Library
Solubility of Chlordiazepoxide, Diazepam, and Lorazepam in Ethanol + Water Mixtures at 303.2 K (open access)

Solubility of Chlordiazepoxide, Diazepam, and Lorazepam in Ethanol + Water Mixtures at 303.2 K

Article discussing the solubility of chlordiazepoxide, diazepam, and lorazepam in ethanol + water mixtures at 303.2 K.
Date: April 22, 2009
Creator: Jouyban, Abolghasem; Shokri, Javad; Barzegar-Jalali, Mohammad; Hassanzadeh, Davoud; Acree, William E. (William Eugene); Ghafourian, Taravat et al.
Object Type: Article
System: The UNT Digital Library
Iraq: Politics, Elections, and Benchmarks (open access)

Iraq: Politics, Elections, and Benchmarks

This report discusses Iraq's political system, which has been restructured through a U.S.-supported election process. The Iraqi government is increasingly characterized by peaceful competition rather than violence, but sectarianism and ethnic and factional infighting still remain. This report discusses issues relating to opponents of the Iraqi Prime Minister Nuri al-Maliki and also discusses the atmosphere of nationwide provincial elections.
Date: April 22, 2009
Creator: Katzman, Kenneth
Object Type: Report
System: The UNT Digital Library

Mental Health and Cognitive Functioning in HIV+ Adults: Anger & Social Support

This poster examines how anger is significantly associated with the mental health of people living with HIV, as conceptualized through state and trait anger.
Date: April 22, 2009
Creator: Lewis, Joshua Adam; Vosvick, Mark A. & Chng, Chwee-Lye
Object Type: Poster
System: The UNT Digital Library

Doctoral Recital: 2009-04-22 - Yi-Jan (Rachel) Liu, percussion

Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date: April 22, 2009
Creator: Liu, Yi-Jan
Object Type: Sound
System: The UNT Digital Library
Yoakum Herald-Times (Yoakum, Tex.), Vol. 117, No. 16, Ed. 1 Wednesday, April 22, 2009 (open access)

Yoakum Herald-Times (Yoakum, Tex.), Vol. 117, No. 16, Ed. 1 Wednesday, April 22, 2009

Weekly newspaper from Yoakum, Texas that includes local, state, and national news along with advertising.
Date: April 22, 2009
Creator: McCracken, Michael S.
Object Type: Newspaper
System: The Portal to Texas History
The Rambler (Fort Worth, Tex.), Vol. 102, No. 11, Ed. 1 Wednesday, April 22, 2009 (open access)

The Rambler (Fort Worth, Tex.), Vol. 102, No. 11, Ed. 1 Wednesday, April 22, 2009

Weekly student newspaper from Texas Wesleyan University in Fort Worth, Texas that includes campus and local news along with advertising.
Date: April 22, 2009
Creator: Nugent, Tiara
Object Type: Newspaper
System: The Portal to Texas History
The Year 2000 Computer Problem: Congressional Issues (open access)

The Year 2000 Computer Problem: Congressional Issues

Many computers were designed to store a two-digit number for the year, which makes the year 2000 indistinguishable from 1900. Unless they are corrected, many computers will not be able to process dates beyond the year 2000, and may cause many costly problems in commerce and government. In the 106th Congress, hearings are being held and will continue to provide the public with the most accurate information available on the status of Y2K remediations at federal agencies, state and local agencies, private sector entities, and international organizations. Congress may also consider additional legislation to ensure that private sector systems are compliant, to establish emergency preparedness measures to address problems that might occur, and to limit liability associated with Y2K failures for manufacturers and industry groups.
Date: April 22, 2009
Creator: Nunno, Richard M.
Object Type: Report
System: The UNT Digital Library

Mental Health Correlates in HIV+ Adults: Self-Efficacy, Control, & Loneliness

This poster examines the relationships between self-efficacy, loneliness, and mental health for people living with HIV.
Date: April 22, 2009
Creator: Perales, Marissa & Vosvick, Mark A.
Object Type: Poster
System: The UNT Digital Library