We investigated ZnO(0001) single crystals annealed in high vacuum with respect to their magnetic properties and cluster formation tendency after implant-doping with Fe. While metallic Fe cluster formation is suppressed, no evidence for the relevance of the Fe magnetic moment to the observed ferromagnetism was found. The latter along with the cluster suppression is discussed with respect to defects in the ZnO host matrix, since the crystalline quality of the substrates was lowered due to the preparation as observed by x-ray diffraction.

The Gamma-ray Large Area Space telescope (GLAST) is a gamma-ray satellite scheduled for launch in 2008. Before the assembly of the Tracker subsystem of the Large Area Telescope (LAT) science instrument of GLAST, every component (tray) and module (tower) has been subjected to extensive ground testing required to ensure successful launch and on-orbit operation. This paper describes the sequence and results of the environmental tests performed on an engineering model and all the flight hardware of the GLAST LAT Tracker. Environmental tests include vibration testing, thermal cycles and thermal-vacuum cycles of every tray and tower as well as the verification of their electrical performance.

We give a representation of the parity-even part of the planar two-loop six-gluon MHV amplitude of N = 4 super-Yang-Mills theory, in terms of loop-momentum integrals with simple dual conformal properties. We evaluate the integrals numerically in order to test directly the ABDK/BDS all-loop ansatz for planar MHV amplitudes. We find that the ansatz requires an additive remainder function, in accord with previous indications from strong-coupling and Regge limits. The planar six-gluon amplitude can also be compared with the hexagonal Wilson loop computed by Drummond, Henn, Korchemsky and Sokatchev in arXiv:0803.1466 [hep-th]. After accounting for differing singularities and other constants independent of the kinematics, we find that the Wilson loop and MHV-amplitude remainders are identical, to within our numerical precision. This result provides non-trivial confirmation of a proposed n-point equivalence between Wilson loops and planar MHV amplitudes, and suggests that an additional mechanism besides dual conformal symmetry fixes their form at six points and beyond.

Weekly newspaper from Goldthwaite, Texas that includes local, state, and national news along with extensive advertising.

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.

The purpose of this work was to acquire Sensor Fish data on turbine passage at Bonneville II, John Day, and Ice Harbor dams for later analysis and use. The original data sets have been entered into a database and are being maintained by Pacific Northwest National Laboratory pending delivery to the U.S. Army Corps of Engineers when requested. This report provides documentation for the data sets acquired and details about the operations of the Sensor Fish and interpretation of Sensor Fish data that will be necessary for later use of the acquired data. A limited review of the acquired data was conducted to assess its quality and to extract information that might prove useful to its later use.

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.

Weekly newspaper from Newton, Texas that includes local, state and national news along with extensive advertising.

Photograph of the Union Courtyard decorated for Union Fest. It is the 60th anniversary and the theme is the 1960s. There are balloons, streamers, paper designs, and a balloon arch over a stairway.

Photograph of the Union Courtyard decorated for Union Fest. It is the 60th anniversary and the theme is the 1960s. There are balloons, streamers, paper designs, and a balloon arch over a stairway.

Photograph of students wearing balloon hats outside of the Union during Union Fest. The hats are multi-colored and have several balloons sticking out in all directions. One of the students is also holding a bag of chips.

Photograph of the Union Courtyard decorated for Union Fest. It is the 60th anniversary and the theme is the 1960s. There are balloons, streamers, paper designs, posters, signs, a banner, and a cake throughout the space. Workers are sitting behind tables waiting to serve the cake.

Photograph of a student singing in front of a green screen at Union Fest. It is the 60th anniversary and the theme is the 1960s. A worker is sitting in front of her and working with monitors and computer systems.

Photograph of students waiting in line and interacting with a worker at a booth that prints off fancy name and birthday meaning certificates. There are several different paper styles and different organization for the text. There is also a 'newspaper' on display named "The Birthday Chronicle".

Photograph of the Union Courtyard decorated for Union Fest. It is the 60th anniversary and the theme is the 1960s. There are balloons, streamers, paper designs, and a balloon arch over a stairway.

Photograph of the Union Courtyard decorated for Union Fest. It is the 60th anniversary and the theme is the 1960s. There are balloons, streamers, tables, paper designs, a banner, a giant cake and posters all over the area.

Photograph of the Union Courtyard decorated for Union Fest. It is the 60th anniversary and the theme is the 1960s. There are balloons, streamers, tables, paper designs, a banner, a giant cake and posters all over the area.

Photograph of the the giant cake for Union Fest. It is the 60th anniversary and the theme is the 1960s. The cake reads "The Union's Turning 60", "PEACE", and "FAR OUT".

Photograph of the Union Courtyard decorated for Union Fest. It is the 60th anniversary and the theme is the 1960s. There are balloons, streamers, paper designs, posters, signs, a banner, and a cake throughout the space. Workers are sitting behind tables waiting to serve the cake.

Pacific Northwest National Laboratory researchers are working on the Columbia River Protection Supplemental Technologies Project. This project is a U. S. Department of Energy, Office of Environmental Management-funded initiative designed to develop new methods, strategies, and technologies for characterizing, modeling, remediating, and monitoring soils and groundwater contaminated with metals, radionuclides, and chlorinated organics. This Quality Assurance Project Plan provides the quality assurance requirements and processes that will be followed by the Technologies Project staff.

Citric acid forms bidentate, tridentate, binuclear or polynuclear species with transition metals and actinides. Biodegradation of metal citrate complexes is influenced by the type of complex formed with metal ions. While bidentate complexes are readily biodegraded, tridentate, binuclear and polynuclear species are recalcitrant. Likewise certain transition metals and actinides are photochemically active in the presence of organic acids. Although the uranyl citrate complex is not biodegraded, in the presence of visible light it undergoes photochemical oxidation/reduction reactions which result in the precipitation of uranium as UO{sub 3} {center_dot} H{sub 2}O. Consequently, we developed a process where uranium is extracted from contaminated soils and wastes by citric acid. The citric-acid extract is subjected to biodegradation to recover the toxic metals, whereas uranyl citrate which is recalcitrant remains in solution. Photochemical degradation of the uranium citrate complex resulted in the precipitation of uranium. Thus the toxic metals and uranium in mixed waste are recovered in separate fractions for recycling or for disposal. The use of naturally-occurring compounds and the combined chemical and microbiological treatment process is more efficient than present methods and should result in considerable savings in cost.

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Photograph of four UNT students in the forensic science lab. One female student is demonstrating use of the equipment while the other students follow along. The male on the left-hand side of the photograph has a notebook in hand. The male on the right-hand side of the photograph is wearing safety glasses.