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2,577 Matching Results
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[Attendees looking at displays]
Photograph of three attendees after the Sigma Tau Delta induction on April 27, 2007. They appear to be looking at the Rare Book display cases along the wall. The man in the center is holding refreshments.
Date:
April 27, 2007
Creator:
Mears, Michelle M.
Object Type:
Photograph
System:
The UNT Digital Library
[Attendees take picture]
Photograph of two attendees after the Sigma Tau Delta induction on April 27, 2007. They are taking a picture together in front of a display.
Date:
April 27, 2007
Creator:
Mears, Michelle M.
Object Type:
Photograph
System:
The UNT Digital Library
[Attendees with refreshments]
Photograph of three attendees at the drink refreshments table. Refreshments were served after the Sigma Tau Delta induction on April 27, 2007.
Date:
April 27, 2007
Creator:
Mears, Michelle M.
Object Type:
Photograph
System:
The UNT Digital Library
[Attendees with refreshments 2]
Photograph of two attendees after the Sigma Tau Delta induction on April 27, 2007. They are standing in front of a display case and one is holding a dessert.
Date:
April 27, 2007
Creator:
Mears, Michelle M.
Object Type:
Photograph
System:
The UNT Digital Library
[Attendees with refreshments 3]
Photograph of attendees with refreshments after the Sigma Tau Delta induction on April 27, 2007. The group to the right appear to be having a conversation.
Date:
April 27, 2007
Creator:
Mears, Michelle M.
Object Type:
Photograph
System:
The UNT Digital Library
[Attendees with refreshments 4]
Photograph of attendees and inductees socializing after the Sigma Tau Delta induction on April 27, 2007. Refreshments were provided after the ceremony.
Date:
April 27, 2007
Creator:
Mears, Michelle M.
Object Type:
Photograph
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 86, No. 151, Ed. 1 Friday, April 27, 2007
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
April 27, 2007
Creator:
Clements, Clifford E.
Object Type:
Newspaper
System:
The Portal to Texas History
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.
Object Type:
Book
System:
The UNT Digital Library
Boerne Star & Recorder (Boerne, Tex.), Vol. 101, No. 34, Ed. 1 Friday, April 27, 2007
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
April 27, 2007
Creator:
Cartwright, Brian
Object Type:
Newspaper
System:
The Portal to Texas History
Broadband Loan and Grant Programs in the USDA’s Rural Utilities Service
This report provides information about the concern that has been raised over a "digital divide" between rural and urban areas with respect to broadband deployment.
Date:
April 27, 2007
Creator:
Kruger, Lennard G.
Object Type:
Report
System:
The UNT Digital Library
Climate Change: Action by States To Address Greenhouse Gas Emissions
This report covers state actions that directly and explicitly address greenhouse gas emissions. First, the report describes the different types of state actions, both individual and cooperative efforts, that are either proposed or underway, and highlights several of the more significant developments. Second, the report examines state actions from a federal policymaking perspective, including both the potential effects of state-led actions and their limitations.
Date:
April 27, 2007
Creator:
Ramseur, Jonathan L.
Object Type:
Report
System:
The UNT Digital Library
Clinical Trials Reporting and Publication
The central issue before Congress wit respect to clinical trial reporting and publication is how to balance the potential beneficial public health effects of requiring that clinical trial data be made public with the burdens that such requirements may place on companies and their own innovation.
Date:
April 27, 2007
Creator:
Williams, Erin D.
Object Type:
Report
System:
The UNT Digital Library
The Coalition Provisional Authority (CPA): Origin, Characteristics, and Institutional Authorities
This report is on The Coalition Provisional Authority (CPA): Origin, Characteristics, and Institutional Authorities.
Date:
April 27, 2007
Creator:
Halchin, L. Elaine
Object Type:
Report
System:
The UNT Digital Library
Cooperative R&D: Federal Efforts to Promote Industrial Competitiveness
This report provides the developments and issues of the federal initiatives in Cooperative R&D.
Date:
April 27, 2007
Creator:
Schacht, Wendy H.
Object Type:
Report
System:
The UNT Digital Library
Dallas Voice (Dallas, Tex.), Vol. 23, No. 50, Ed. 1 Friday, April 27, 2007
Weekly newspaper from Dallas, Texas that includes local, state, and national news and advertising of interest to the Lesbian, Gay, Bisexual, and Transgender (LGBT) community.
Date:
April 27, 2007
Creator:
Nash, Tammye
Object Type:
Newspaper
System:
The UNT Digital Library
Damage-resistant single-pulse optics for x-ray free electron lasers
Short-pulse ultraviolet and x-ray free electron lasers of unprecedented peak brightness are in the process of revolutionizing physics, chemistry, and biology. Optical components for these new light sources have to be able to withstand exposure to the extremely high-fluence photon pulses. Whereas most optics have been designed to stay intact for many pulses, it has also been suggested that single-pulse optics that function during the pulse but disintegrate on a longer timescale, may be useful at higher fluences than multiple-pulse optics. In this paper we will review damage-resistant single-pulse optics that recently have been demonstrated at the FLASH soft-x-ray laser facility at DESY, including mirrors, apertures, and nanolenses. It was found that these objects stay intact for the duration of the 25-fs FLASH pulse, even when exposed to fluences that exceed the melt damage threshold by fifty times or more. We present a computational model for the FLASH laser-material interaction to analyze the extent to which the optics still function during the pulse. Comparison to experimental results obtained at FLASH shows good quantitative agreement.
Date:
April 27, 2007
Creator:
Hau-Riege, S.; London, R.; Bogan, M.; Chapman, H. & Bergh, M.
Object Type:
Article
System:
The UNT Digital Library
Defense Inventory: Opportunities Exist to Save Billions by Reducing Air Force's Unneeded Spare Parts Inventory
A letter report issued by the Government Accountability Office with an abstract that begins "At a time when U.S. military forces and their equipment are in high demand, effective management of the Department of Defense's (DOD) inventory is critical to ensure that the warfighter has the right items at the right time. The Air Force is the largest contributor to DOD's total on-hand inventory on the basis of inventory value. Under the statutory authority of the Comptroller General to conduct evaluations on his own initiative, GAO determined the extent to which (1) the Air Force's on-order and on-hand inventory reflect the amount of inventory needed to support required inventory levels from fiscal years 2002 through 2005, and (2) the Air Force had shortages in its inventory needed to support required levels during this period. To address these objectives GAO analyzed Air Force secondary inventory data (spare parts such as engines and guided missiles) from fiscal years 2002 through 2005."
Date:
April 27, 2007
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
DHS Privacy Office: Progress Made but Challenges Remain in Notifying and Reporting to the Public
A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Homeland Security (DHS) Privacy Office was established with the appointment of the first Chief Privacy Officer in April 2003, as required by the Homeland Security Act of 2002. The Privacy Office's major responsibilities include: (1) reviewing and approving privacy impact assessments (PIA)--analyses of how personal information is managed in a federal system, (2) integrating privacy considerations into DHS decision making, (3) ensuring compliance with the Privacy Act of 1974, and (4) preparing and issuing annual reports and reports on key privacy concerns. GAO's objective was to examine progress made by the Privacy Office in carrying out its statutory responsibilities. GAO did this by comparing statutory requirements with Privacy Office processes, documents, and activities."
Date:
April 27, 2007
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Doctoral Recital: 2007-04-27 - Wen-Chien Tang, piano
Recital presented at the UNT College of Music Concert Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree
Date:
April 27, 2007
Creator:
Tang, Wen-Chien
Object Type:
Sound
System:
The UNT Digital Library
Downhole Measurements of Shear- and Compression-Wave Velocities in Boreholes C4993, C4996, C4997 and C4998 at the Waste Treatment Plant DOE Hanford Site.
This report describes the procedures and the results of a series of downhole measurements of shear- and compression-wave velocities performed as part of the Seismic Boreholes Project at the site of the Waste Treatment Plant (WTP). The measurements were made in several stages from October 2006 through early February 2007. Although some fieldwork was carried out in conjunction with the University of Texas at Austin (UT), all data acquired by UT personnel are reported separately by that organization.
Date:
April 27, 2007
Creator:
Redpath, Bruce B.
Object Type:
Report
System:
The UNT Digital Library
Electric Transmission: Approaches for Energizing a Sagging Industry
This report discusses factors that have contributed to the lack of new transmission capacity and some of the resulting issues. This report reviews approaches being taken to address the lack of investment in transmission infrastructure and transmission congestion.
Date:
April 27, 2007
Creator:
Abel, Amy
Object Type:
Report
System:
The UNT Digital Library
Electron Density Measurements in the National Spherical Torus Experiment Detached Divertor Region Using Stark Broadening of Deuterium Infrared Paschen Emission Lines
Spatially resolved measurements of deuterium Balmer and Paschen line emission have been performed in the divertor region of the National Spherical Torus Experiment using a commercial 0.5 m Czerny-Turner spectrometer. While the Balmer emission lines, Balmer and Paschen continua in the ultraviolet and visible regions have been extensively used for tokamak divertor plasma temperature and density measurements, the diagnostic potential of infrared Paschen lines has been largely overlooked. We analyze Stark broadening of the lines corresponding to 2-n and 3-m transitions with principle quantum numbers n = 7-12 and m = 10-12 using recent Model Microfield Method calculations (C. Stehle and R. Hutcheon, Astron. Astrophys. Supl. Ser. 140, 93 (1999)). Densities in the range (5-50) x 10{sup 19} m{sup -3} are obtained in the recombining inner divertor plasma in 2-6 MW NBI H-mode discharges. The measured Paschen line profiles show good sensitivity to Stark effects, and low sensitivity to instrumental and Doppler broadening. The lines are situated in the near-infrared wavelength domain, where optical signal extraction schemes for harsh nuclear environments are practically realizable, and where a recombining divertor plasma is optically thin. These properties make them an attractive recombining divertor density diagnostic for a burning plasma experiment.
Date:
April 27, 2007
Creator:
Soukhanovskii, V A; Johnson, D W; Kaita, R & Roquemore, A L
Object Type:
Article
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Friday, April 27, 2007
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 27, 2007
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Extracellular Proteins Limit the Dispersal of BiogenicNanoparticles
High spatial-resolution secondaryion microprobespectrometry, synchrotron radiation Fourier-transform infraredspectroscopy and polyacrylamide gel analysis demonstrate the intimateassociation of proteins with spheroidal aggregates of biogenic zincsulfide nanocrystals, an example of extracellular biomineralization.Experiments involving synthetic ZnS nanoparticles and representativeamino acids indicate a driving role for cysteine in rapid nanoparticleaggregation. These findings suggest that microbially-derivedextracellular proteins can limit dispersal of nanoparticulatemetal-bearing phases, such as the mineral products of bioremediation,that may otherwise be transported away from their source by subsurfacefluid flow.
Date:
April 27, 2007
Creator:
Moreau, John W.; Weber, Peter K.; Martin, Michael C.; Gilbert,Benjamin; Hutcheon, Ian D. & Banfield, Jillian F.
Object Type:
Article
System:
The UNT Digital Library