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427 Matching Results
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Constraining PCP Violating Varying Alpha Theory through Laboratory Experiments
In this report we have studied the implication of a parity and charge-parity (PCP) violating interaction in varying alpha theory. Due to this interaction, the state of photon polarization can change when it passes through a strong background magnetic field. We have calculated the optical rotation and ellipticity of the plane of polarization of an electromagnetic wave and tested our results against different laboratory experiments. Our model contains a PCP violating parameter {beta} and a scale of alpha variation {omega}. By analyzing the laboratory experimental data, we found the most stringent constraints on our model parameters to be 1 {le} {omega} {le} 10{sup 13} GeV{sup 2} and -0.5 {le} {beta} {le} 0.5. We also found that with the existing experimental input parameters it is very difficult to detect the ellipticity in the near future.
Date:
June 6, 2012
Creator:
Maity, Debaprasad; /NCTS, Taipei /Taiwan, Natl. Taiwan U.; Chen, Pisin & /NCTS, Taipei /Taiwan, Natl. Taiwan U. /KIPAC, Menlo Park /SLAC
Object Type:
Article
System:
The UNT Digital Library
Analysing the Effect on CMB in a Parity and Charge Parity Violating Varying Alpha Theory
In this paper we study in detail the effect of our recently proposed model of parity and charge-parity (PCP) violating varying alpha on the Cosmic Microwave Background (CMB) photon passing through the intra galaxy-cluster medium (ICM). The ICM is well known to be composed of magnetized plasma. According to our model, the polarization and intensity of the CMB would be affected when traversing through the ICM due to non-trivial scalar photon interactions. We have calculated the evolution of such polarization and intensity collectively, known as the stokes parameters of the CMB photon during its journey through the ICM and tested our results against the Sunyaev-Zel'dovich (SZ) measurement on Coma galaxy cluster. Our model contains a PCP violating parameter, {beta}, and a scale of alpha variation {omega}. Using the derived constrained on the photon-to-scalar conversion probability, {bar P}{sub {gamma}{yields}{phi}}, for Coma cluster in ref.[34] we found a contour plot in the ({omega},{beta}) parameter plane. The {beta} = 0 line in this parameter space corresponds to well-studied Maxwell-dilaton type models which has lower bound on {omega} {approx}> 6.4 x 10{sup 9} GeV. In general, as the absolute value of {beta} increases, lower bound on {omega} also increases. Our model in general predicts …
Date:
September 14, 2012
Creator:
Maity, Debaprasad; /NCTS, Taipei /Taiwan, Natl. Taiwan U.; Chen, Pisin & /NCTS, Taipei /Taiwan, Natl. Taiwan U. /KIPAC, Menlo Park /SLAC
Object Type:
Article
System:
The UNT Digital Library
FY12 LLNL OMEGA Experimental Programs
None
Date:
November 15, 2012
Creator:
Heeter, R.; Fournier, K.; Baker, K.; Celliers, P.; Fratanduono, D.; Hawreliak, J. et al.
Object Type:
Report
System:
The UNT Digital Library
The Hexagon, Volume 103, Number 3, Fall 2012
Quarterly publication of the Alpha Chi Sigma chemistry fraternity containing articles related to chemistry research and the activities of the organization, including local chapters and groups.
Date:
Autumn 2012
Creator:
Alpha Chi Sigma
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
The Hexagon, Volume 103, Number 1, Spring 2012
Quarterly publication of the Alpha Chi Sigma chemistry fraternity containing articles related to chemistry research and the activities of the organization, including local chapters and groups.
Date:
Spring 2012
Creator:
Alpha Chi Sigma
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
The Hexagon, Volume 103, Number 2, Summer 2012
Quarterly publication of the Alpha Chi Sigma chemistry fraternity containing articles related to chemistry research and the activities of the organization, including local chapters and groups.
Date:
Summer 2012
Creator:
Alpha Chi Sigma
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
[Kappa Delta members at 2012 Homecoming Parade, 2]
Photograph of members of the Kappa Delta sorority on a joint float with the Theta Chi, Sigma Alpha Beta, and Gamma Phi Omega fraternities at the 2012 UNT Homecoming Parade. Members of the group can be seen sitting and standing on a trailer bed, wearing matching blue sweatshirts. Two young women are doing the eagle claw. One young man can be seen also be seen among the group.
Date:
November 3, 2012
Creator:
Chaney, Ken
Object Type:
Photograph
System:
The UNT Digital Library
[Kappa Delta members at 2012 Homecoming Parade, 1]
Photograph of members of the Kappa Delta sorority on a joint float with the Theta Chi, Sigma Alpha Beta, and Gamma Phi Omega fraternities at the 2012 UNT Homecoming Parade. Members of the group can be seen sitting and standing in the bed of a pickup truck, facing the camera and smiling. Several individuals are waving and doing the Kappa Beta hand sign and eagle claw.
Date:
November 3, 2012
Creator:
Chaney, Ken
Object Type:
Photograph
System:
The UNT Digital Library
Ring of Fire
Front cover of the fall 2012 issue of The Hexagon, which features an image of the "ring of fire" that occurred during the annular eclipse on May 20, 2012. The photograph was taken in Brownfield, Texas a few minutes before sunset. The inside cover contains a table of contents, a staff list, an editorial, and details about the cover photograph.
Date:
Autumn 2012
Creator:
Marshall, James L., 1940- & Marshall, Virginia R.
Object Type:
Article
System:
The UNT Digital Library
Effects of a Self-care Intervention for Counselors on Compassion Fatigue and Compassion Satisfaction
This study investigated the impact of a psychoeducational and experiential structured counselor self-care curriculum, developed by Drs. Charles and Kathleen Figley, on compassion fatigue and the prevention of professional impairment as measured by the Professional Quality of Life (ProQOL), Version 5. Volunteer licensed professional counselors, supervisors, and interns from four children's advocacy centers in Texas were assigned to treatment group (n = 21; 20 females, 1 male; mean age 34.4 years) or waitlist control group (n = 21; 19 females, 2 males; mean age 34.6 years). Participating counselors identified themselves ethnically as 64% Caucasian, 26% Hispanic, 7% African-American, and 2% Native-American. Employing a quasi-experimental design, three reliability-corrected analysis of covariance (ANCOVA) were utilized to analyze the data with an alpha level of .05 to assess statistical significance and partial eta squared to assess effect size. With pre-test scores as the covariate, results revealed in the experimental group a statistically significant reduction with large treatment effect for burnout (p = .01; partial ?2 = .15), a statistically nonsignificant reduction with a medium effect for secondary traumatic stress (p = .18; partial ?2 = .05), and a statistically nonsignificant increase with a medium effect for compassion satisfaction (p = .06; partial ?2= …
Date:
December 2012
Creator:
Koehler, Christine Marie Guthrie
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The ePLAS Code for Ignition Studies
Inertial Confinement Fusion (ICF) presents unique opportunities for the extraction of clean energy from Fusion. Intense lasers and particle beams can create and interact with such plasmas, potentially yielding sufficient energy to satisfy all our national needs. However, few models are available to help aid the scientific community in the study and optimization of such interactions. This project enhanced and disseminated the computer code ePLAS for the early understanding and control of Ignition in ICF. ePLAS is a unique simulation code that tracks the transport of laser light to a target, the absorption of that light resulting in the generation and transport of hot electrons, and the heating and flow dynamics of the background plasma. It uses an implicit electromagnetic field-solving method to greatly reduce computing demands, so that useful target interaction studies can often be completed in 15 minutes on a portable 2.1 GHz PC. The code permits the rapid scoping of calculations for the optimization of laser target interactions aimed at fusion. Recent efforts have initiated the use of analytic equations of state (EOS), K-alpha image rendering graphics, allocatable memory for source-free usage, and adaption to the latest Mac and Linux Operating Systems. The speed and utility of …
Date:
September 20, 2012
Creator:
Mason, Rodney J.
Object Type:
Report
System:
The UNT Digital Library
The Oklahoma Daily (Norman, Okla.), Vol. 98, No. 24, Ed. 1 Tuesday, September 18, 2012
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
September 18, 2012
Creator:
Ellisor, Laney
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Optimist (Abilene, Tex.), Vol. 100, No. 38, Ed. 1 Sunday, February 19, 2012
Bi-weekly student newspaper from Abilene Christian University in Abilene, Texas that includes local, state and campus news along with advertising.
Date:
February 19, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Oklahoma Daily (Norman, Okla.), Vol. 97, No. 106, Ed. 1 Wednesday, February 22, 2012
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
February 22, 2012
Creator:
Lusk, Chris
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Daily (Norman, Okla.), Vol. 98, No. 62, Ed. 1 Monday, November 12, 2012
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
November 12, 2012
Creator:
Ellisor, Laney
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Daily (Norman, Okla.), Vol. 98, No. 74, Ed. 1 Wednesday, December 5, 2012
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
December 5, 2012
Creator:
Ellisor, Laney
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Daily (Norman, Okla.), Vol. 98, No. 59, Ed. 1 Wednesday, November 7, 2012
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
November 7, 2012
Creator:
Ellisor, Laney
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Daily (Norman, Okla.), Vol. 98, No. 49, Ed. 1 Wednesday, October 24, 2012
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
October 24, 2012
Creator:
Ellisor, Laney
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Daily (Norman, Okla.), Vol. 98, No. 20, Ed. 1 Wednesday, September 12, 2012
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
September 12, 2012
Creator:
Ellisor, Laney
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Daily (Norman, Okla.), Vol. 98, No. 69, Ed. 1 Wednesday, November 28, 2012
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
November 28, 2012
Creator:
Ellisor, Laney
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Daily (Norman, Okla.), Vol. 98, No. 35, Ed. 1 Wednesday, October 3, 2012
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
October 3, 2012
Creator:
Ellisor, Laney
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Daily (Norman, Okla.), Vol. 97, No. 111, Ed. 1 Wednesday, February 29, 2012
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
February 29, 2012
Creator:
Lusk, Chris
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Daily (Norman, Okla.), Vol. 98, No. 40, Ed. 1 Wednesday, October 10, 2012
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
October 10, 2012
Creator:
Ellisor, Laney
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Daily (Norman, Okla.), Vol. 98, No. 25, Ed. 1 Wednesday, September 19, 2012
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
September 19, 2012
Creator:
Ellisor, Laney
Object Type:
Newspaper
System:
The Gateway to Oklahoma History