Newsletter focusing on pecan disease and pest control in Texas, including prevention, identification, treatment, and educational opportunities.

Annual report providing an overview of statistics related to crime in Texas during 1994 organized into summary tables and graphs. There are specific sections that break down hate crimes, family violence, and types of crime in large cities.

Monthly report providing tabular statistical information about motor vehicle accidents in Texas during 1995, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Monthly report providing tabular statistical information about motor vehicle accidents in Texas during 1994, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Monthly report providing tabular statistical information about motor vehicle accidents in Texas during 1993, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Monthly report providing tabular statistical information about motor vehicle accidents in Texas during 1992, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Monthly report providing tabular statistical information about motor vehicle accidents in Texas during 1991, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Monthly report providing tabular statistical information about motor vehicle accidents in Texas during 1990, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Monthly report providing tabular statistical information about motor vehicle accidents in rural areas of Texas during 1995, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Monthly report providing tabular statistical information about motor vehicle accidents in rural areas of Texas during 1994, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Monthly report providing tabular statistical information about motor vehicle accidents in rural areas of Texas during 1993, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Monthly report providing tabular statistical information about motor vehicle accidents in rural areas of Texas during 1992, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Monthly report providing tabular statistical information about motor vehicle accidents in rural areas of Texas during 1991, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Monthly report providing tabular statistical information about motor vehicle accidents in rural areas of Texas during 1990, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

This Topical Report No. 2 is an interim report on the Duct Injection Test Facility being operated for the Department of Energy at Beverly, Ohio. Either dry calcium hydroxide or an aqueous slurry of calcium hydroxide (prepared by slaking quicklime) is injected into a slipstream of flue gas to achieve partial removal of SO{sub 2} from a coal-burning power station. Water injected with the slurry or injected separately from the dry sorbents cools the flue gas and increases the water vapor content of the gas. The addition of water, either in the slurry or in a separate spray, makes the extent of reaction between the sorbent and the SO{sub 2} more complete; the presumption is that water is effective in the liquid state, when it is able to wet the sorbent particles physically, and not especially effective in the vapor state. An electrostatic precipitator collects the combination of suspended solids (fly ash from the boiler and sorbent from the duct injection process). All of the operations are being carried out on the scale of approximately 50,000 acfm of flue gas.

To properly interpret empirical data on the leaching and physical properties of the baseline ceramic, it is necessary but not sufficient to understand the corresponding behaviors of the main constituent phases, pyrochlore and brannerite. As a first step, the work has addressed making single phases containing only one actinide or Ce, and no neutron absorbers. This report addresses progress in making these phases.

The coupled neutron/photon transport code TART has been used to calculate the attenuation of neutrons and the production of induced photons for neutrons incidents on 5% and 20% borated polyethylene slabs. The neutron attenuation lengths are found to be 2.4 cm and 2.9 cm for 5% and 20% borated polyethylene, respectively.

The goal of this project is to use mutant phenotypes as a guide to nuclear genes that control the timing and cell-type specificity of chloroplast gene expression. Studies are being conducted with nuclear mutants of maize that are defective in the biogenesis or translation of chloroplast mRNAs. Currently studies are focused on two nuclear mutants with specific and unique lesions in chloroplast RNA processing (crp mutants). Crp1 mutants (formerly called hcf136) fail to accumulate the cytochrome f/b6 complex. The protein loss is due to a defect in the metabolism of transcripts encoding the petB and petD gene products, two subunits of the missing complex. Mutant seedlings lack the monocistronic petB and petD MRNAS, which both arise in nominal plants by endonucleolytic cleavage of the polycistronic primary transcript of the psbB gene cluster. Precursor mRNAs accumulate normally in crp1, indicating that its defect is due either to a failure to cleave the precursors, or a failure to stabilize the fully processed mRNAs. We are interested in both the biochemistry of this site-specific RNA processing and in the role of the processing in generating translatable mRNAs. To address the latter, we are quantifying the rates of synthesis of the petB and petD …

Small barium fluoride crystals have been irradiated using cobalt-60 gamma rays under various illumination conditions to establish the effect of photo-bleaching of the radiation-induced color centers. This paper describes results of a few different experiments conducted at LLNL over the past few weeks.

Effects of minor alloying elements on passivity breakdown and of photo effects on the properties of passive films are under study, and electrochemical and photoelectrochemical techniques are being used to explore transport and kinetic properties of vacancies and charge carriers in films and at metal/film and film/solution interfaces. Point defect and solute/vacancy interaction models are being developed to account for distributions in critical voltage and induction time for passivity breakdown by incorporating thermodynamics of absorption of halide ions into surface oxygen vacancies, by invoking different mechanisms for cation vacancy generation at film/solution interface, by extending the models to passive films on metal substrates having variable cation oxidation states, and by deriving rate laws for growth of passive films in response to an imposed voltage perturbation.

B physics provides a unique window for investigation and confirmation of our picture of CP violation, as well as an opportunity to explore physics beyond the Standard Model. Because of this richness of physics, programs for the study of the B sector are in progress or under development at most of the major facilities for high energy physics in the world. In this note we suggest that a B program at the RHIC facility at BNL could provide timely and complementary information to our understanding of physics within and beyond the Standard Model.

This report discusses the ``Art`` of blind shaft drilling which has been in a continual state of evolution at the Nevada Test Site (NTS) since the start of underground testing in 1957. Emplacement holes for nuclear devices are still being drilled by the rotary drilling process, but almost all the hardware and systems have undergone many changes during the intervening years. Blind shaft drilling and tunnel construction technologies received increased emphasis with the signing of the LTBT in 1963.

Our recent laboratory efforts were primarily directed toward the determination of the effects of adsorbed water on the tensile strength of powders and the development of apparatus for Experiment 3.5. As suggested by our literature review, our data indicate that water adsorption depends on particle morphology and on surface chemistry. Our measurements of tensile strength show that, for many of the samples we have analyzed, a relative minimum in tensile strength exists for samples conditioned and tested at about 30% relative humidity. Under Experiment 3.5, which began during this last quarter, we have been developing a system capable of conditioning selected samples with (NH{sub 4}){sub 2}SO{sub 4}, NH{sub 4}HSO{sub 4}CaCl{sub 2}, organosiloxane, and SO{sub 3}.

A phase 11 study has been initiated to investigate surfactant-assisted coal liquefaction, with the objective of, quantifying the enhancement in liquid yields and product quality. This report covers the third quarter of work. The major accomplishments were (1) completion of coal liquefaction autoclave reactor runs and related analysis with Illinois {number_sign}6 coal at a processing temperature of 375{degree}C, and pressures of 1800 and 1500 psig, (2) completion and analysis of two autoclave reactor runs to observe the synergistic effect of the surfactant and an iron catalyst, and (3) setting up a subcontract with HRI Inc. to test the surfactant enhanced liquefaction process in a continuous flow reactor.