Recent 2{omega} gasbag experiments on the Helen laser studied single-beam propagation and backscatter as a function of gas density. We present a comprehensive analysis of these experiments using simulations in HYDRA. Post-processed results agree well with experimental fast x-ray images (FXI) showing stable laser propagation across the bag. The measured total stimulated Raman backscatter (SRS) increases with initial gas density up to n{sub e} {approx} 0.08 n{sub c}, then decreases. Near-backscatter images (NBI) show that the decrease in total SRS with increasing density is not due to scatter outside of the collection optics. SRS gain spectra calculated from the HYDRA results agree well with experimental streak spectra. The tilt and spread in wavelength of the spectra appear to be explained by gasbag hydrodynamics only, with no need to invoke filamentation. Axial density gradients and laser pump absorption may combine to detune and limit SRS gain at high density.

This report discusses the issue of U.S. economic assistance to sub-Saharan Africa, highlighting the importance of continued assistance in light of U.S. national security and also various U.S.-led efforts to promote reform amongst African citizens themselves. U.S. assistance finds its way to Africa through a variety of channels, including the USAID-administered DA program, food aid programs, and indirect aid provided through international financial institutions and the United Nations.

We are developing an all fiber front end for the next generation high-energy petawatt (HEPW) laser at Lawrence Livermore National Laboratory (LLNL). The ultimate goal of the LLNL HEPW effort is to generate 5-kJ pulses capable of compression to 5ps at 1053nm, enabling advanced x-ray backlighters and possible demonstration of fast ignition. We discuss the front-end of the laser design from the fiber master oscillator, which generates the mode-locked 20nm bandwidth initial pulses through the 10mJ output of the large flattened mode (LFM) fiber amplifier. Development of an all fiber front end requires technological breakthroughs in the key areas of the master oscillator and fiber amplification. Chirped pulse amplification in optical fibers has been demonstrated to 1mJ. Further increase is limited by the onset of stimulated Raman scattering (SRS). We have recently demonstrated a new flattened mode fiber technology, which reduces peak power for a given energy and thus the onset of SRS. Controlled experiments with 1st generation fibers yielded 0.5mJ of energy while significantly increasing the point at which nonlinear optical effects degrade the amplified pulse. In this paper we will discuss our efforts to extend this work to greater than 20mJ using our large flattened mode fiber amplifier.

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

Baselines and scorekeeping are an integral part of the federal budget process, providing Congress and the President with a framework for making and enforcing budgetary decisions. A baseline serves as a benchmark for federal budget decisions. While the Office of Management and Budget and the Congressional Budget Office create different baselines, their baselines project federal spending, revenue, and budget surplus or deficit amounts that would occur if existing budget policies were left unchanged. Scorekeeping is the process by which the budgetary impact of proposed ad enacted budgetary policies is measured; it assists Congress and the President in making and enforcing budgetary decisions.

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

Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.

Semiweekly newspaper from Brady, Texas that includes local, state, and national news along with advertising.

A letter report issued by the General Accounting Office with an abstract that begins "Congress expressed concerns about the Chemical Demilitarization Program cost and schedule, and its management structure. In 2001, the program underwent a major reorganization. Following a decade long trend of missed schedule milestones, in September 2001, the Department of Defense (DOD) revised the schedule, which extended planned milestones and increased program cost estimates beyond the 1998 estimate of $15 billion to $24 billion. GAO was asked to (1) examine the effect that recent organization changes have had on program performance and (2) assess the progress DOD and the Army have made in meeting the revised 2001 cost and schedule and Chemical Weapons Convention (CWC) deadlines."

Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.

The high magnetic fields required for future accelerator magnets can only be achieved with Nb3Sn, other A15 or HTS type conductors, which are brittle and sensitive to mechanical strain. The traditional ''cosine-theta'' dipole configuration has intrinsic drawbacks that make it difficult and expensive to employ such conductors in these designs. Some of these problems involve (1) difficulty in applying enough pre-stress to counteract Lorentz forces without compromising conductor performance; (2) small minimum bend radii of the conductor necessitating the intricate wind-and-react coil fabrication; (3) complex spacers in particular for coil ends and expensive tooling for coil fabrication; (4) typically only 2/3 of the coil aperture can be used with achievable field uniformity.

This report provides information about the Status and Current Issues of Conservation Reserve Program. The CRP enacted in 1985 provides payment to the farmers to take highly erodible or environmentally sensitive cropland out of production for ten years or more.

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.

In this paper we discuss recent work on the development of high damage threshold, high efficiency MLD (multilayer dielectric) diffraction gratings for use in high energy, petawatt laser systems. This effort involves a close integration between modeling, fabrication, and testing. The modeling work is used to identify grating designs that satisfy the constraints of high efficiency (>94%) and low field enhancement which is a necessary condition for high damage threshold. Subscale MLD gratings for test are being fabricated in an advanced ion-etch machine we have recently built. The testing effort is being conducted in a dedicated laboratory. The laser beam used to test the samples is based on an OPCPA (optical parametric chirped-pulse amplifier) and a compressor that can provide pulse energies up to 50mJ with pulse lengths variable from 0.3-20 ps. This test station is equipped with diagnostics to fully characterize both the spatial and temporal characteristics of the test beam at the plane of the sample. Initial results have demonstrated a dependence of damage threshold on incident angle that is in good agreement with the field enhancement calculations. We have demonstrated a grating design with a damage threshold of 3J/cm{sup 2} and are investigating manufacturability and reproducibility issues …

The objective of this research project is to demonstrate an economically viable and sustainable method of producing shallow heavy oil reserves in western Missouri and southeastern Kansas, using an integrated approach including surface geochemical surveys, conventional MEOR treatments, horizontal fracturing in vertical wells, electrical resistivity tomography (ERT), and reservoir simulation to optimize the recovery process. The objective also includes transferring the knowledge gained from the project to other local landowners, to demonstrate how they may identify and develop their own heavy oil resources with minimal capital investment. Tasks completed in the first six-month period include soil sampling, geochemical analysis, construction of ERT arrays, collection of background ERT surveys, and analysis of core samples to develop a geomechanical model for designing the hydraulic fracturing treatment. Five wells were to be drilled in phase I. However, weather and funding delays resulted in drilling shifting to the second phase of the project. Work performed to date demonstrates that surface geochemical methods can be used to differentiate between productive and non-productive areas of the Warner Sand and that ERT can be used to successfully image through the Warner Sand.

Photograph of Dallas Independent Volleyball Association members organizing handbooks for the fall tournament season. There are yellow, green, and orange ones and two boxes for storing them.

This report discusses issues debated in the 107th Congress while is considering various proposals to amend the Endangered Species Act of 1973 (ESA). Major issues in recent years have included changing the role of science in decision-making, changing the role of critical habitat, reducing conflicts with Department of Defense activities, incorporating further protection for property owners, and increasing protection of listed species, among others. In addition, many have advocated including significant changes to ESA regulations made during the Clinton Administration in the law itself.

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

This report discusses state and federal legislative power generally and focuses on a number of these "federalism" cases. Issues addressed include congressional power under the Commerce Clause and the Fourteenth Amendment; constitutional limits on congressional powers, such as the Tenth Amendment; and state sovereign immunity under the Eleventh Amendment.

This report provides information about the Fishery, Aquaculture, and Marine Mammal Legislation in the 108th Congress. fish and marine are important resources in the open ocean and nearshore coastal areas.

Correspondence issued by the General Accounting Office with an abstract that begins "From 1996 to 1997, the U.S. Environmental Protection Agency (EPA) conducted a cleanup action on a former zinc smelter operated by Eagle-Picher Mining and Smelting, Inc. and other areas contaminated by materials from this site near Henryetta, Oklahoma. EPA's cleanup focused on removing the immediate health threat posed by lead- and arsenic-contaminated soil transported from the Eagle-Picher site to residential and other highly accessible areas. Cleanup actions on the Eagle-Picher site involved establishing proper drainage on the site, encapsulating the Eagle-Picher site with clay and cover soil, and establishing vegetative cover at the site to protect nearby residents from the recontamination from wind and water erosion of hazardous materials. Since completion of the cleanup, private landowners of a neighboring property have raised concerns about contamination of their property resulting from EPA's cleanup actions. Landowners allege that EPA, through its contractors, transported and negligently disposed of hazardous substances on their property. The landowners also allege that EPA's actions at the site contributed to the migration of contamination from the Eagle-Picher site onto their property. These landowners are currently pursuing litigation against EPA and the city of Henryetta for damages …

This report outlines the existing recovery modes to mitigate disasters in financial markets that events have tested in recent experience, and recovery arrangements.

This report provides an overall summary of contents from the House Rules manual.

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