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in publisher: "University of Georgia"  
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Phytoremediation of Ionic and Methyl Mercury Pollution

Description: Phytoremediation is defined as the use of plants to extract, resist, detoxify, and/or sequester toxic environmental pollutants. The long-term goal of the proposed research is to develop and test highly productive, field-adapted plant species that have been engineered for the phytoremediation of mercury. A variety of different genes, which should enable plants to clean mercury polluted sites are being tested as tools for mercury phytoremediation, first in model laboratory plants and then in pote… more
Date: June 1, 2005
Creator: Meagher, Richard B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Phytoremediation of Ionic and Methyl Mercury Pollution

Description: Phytoremediation is defined as the use of plants to extract, resist, detoxify, and/or sequester toxic environmental pollutants. The long-term goal of the proposed research is to develop and test highly productive, field-adapted plant species that have been engineered for the phytoremediation of mercury. A variety of different genes, which should enable plants to clean mercury polluted sites are being tested as tools for mercury phytoremediation, first in model laboratory plants and then in pote… more
Date: June 1, 2005
Creator: Meagher, Richard B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Process Design for the Biocatalysis of Value-Added Chemicals from Carbon Dioxide

Description: This report describes results toward developing a process to sequester CO{sub 2} centered on the enzyme pyruvate carboxylase. The process involves the use of bacteria to convert CO{sub 2} and glucose as a co-substrate and generates succinic acid as a commodity chemical product. The first phase of this research has focused on strain development and on process development. Progress in strain development has been made in three areas. The gene encoding for alcohol dehydrogenase has been ''knocked o… more
Date: November 1, 2005
Creator: Eiteman, Mark A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Phytoremediation of Ionic and Methyl Mercury Pollution

Description: Phytoremediation is defined as the use of plants to extract, resist, detoxify, and/or sequester toxic environmental pollutants. The long-term goal of the proposed research is to develop and test highly productive, field-adapted plant species that have been engineered for the phytoremediation of mercury. A variety of different genes, which should enable plants to clean mercury polluted sites are being tested as tools for mercury phytoremediation, first in model laboratory plants and then in pote… more
Date: December 1, 2004
Creator: Meagher, Richard B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Phytoremediation Strategy for Arsenic

Description: A Phytoremediation Strategy for Arsenic Progress Report May, 2005 Richard B. Meagher Principal Investigator Arsenic pollution affects the health of several hundred millions of people world wide, and an estimated 10 million Americans have unsafe levels of arsenic in their drinking water. However, few environmentally sound remedies for cleaning up arsenic contaminated soil and water have been proposed. Phytoremediation, the use of plants to extract and sequester environmental pollutants, is one n… more
Date: June 1, 2005
Creator: Meagher, Richard B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Structures and Functions of Oligosaccharins

Description: We have made considerable progress during the 2.5 year funding period just ending in our studies of the structures and functions of oligosaccharide signal molecules (oligosaccharins). We have emphasized studies of the enzymes that solubilize, process, and degrade oligosaccharins and of the proteins that inhibit those enzymes. We have been especially interested in elucidating how oligosaccharins and their processing enzymes participate in determining the outcome of challenges to plants by pathog… more
Date: December 1, 1995
Creator: Albersheim, Peter
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of new techniques of using irradiation in the genetic improvement of warm season grasses, the assessment of their genetic and cytogenetic effects and biomass production from grass. Progress report, November 1, 1978-October 31, 1979

Description: The following topics are discussed: altering protein quantity and quality in pearl millet grain by irradiation and mutation breeding; effect of nitrogen and genotype (male and female) on pearl millet grain; irradiation breeding of sterile triploid turf bermudagrasses; irradiation breeding of sterile Coastcross-1, a forage grass hybrid to increase winterhardiness; heterosis resulting from crossing specific irradiation induced mutants with their normal inbred parent; economic assessment of irradi… more
Date: June 1, 1979
Creator: Burton, G W & Hanna, W W
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Multidisciplinary research program directed toward utilization of solar energy through bioconversion of renewable resources. Progress report

Description: Progress is reported in four research areas of solar bioconversion. The first program deals with the genetic selection of superior trees, physiological basis of vigor, tissue culture, haploid cell lines, and somatic hybridization. The second deals with the physiology of paraquat-induced oleoresin biogenesis. Separate abstracts were prepared for the other two program areas: biochemical basis of paraquat-induced oleoresin production in pines and biochemistry of methanogenesis. (JSR)
Date: July 1, 1976
Creator: Finnerty, W. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Study of matter current effects in two-body inelastic collisions

Description: At the present time no comprehensive model of high energy hadronic scattering exists. Most of the existing models have a very restricted range of application. The geometrical model of hadronic scattering proposed by Chou and Yang has had great success in predicting high energy scattering phenomena. For example, the dip in pp elastic scattering, and pion and kaon radii were quite accurately predicted by the model. Use of pp differential cross section data also yields an excellent fit of the meas… more
Date: January 1, 1979
Creator: Rulison, M.K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Uranium Resource Assessment Through Statistical Analysis of Exploration Geochemical and Other Data. Final Report. [Codes Eval, Sure]

Description: We have developed a procedure that can help quadrangle evaluators to systematically summarize and use hydrogeochemical and stream sediment reconnaissance (HSSR) and occurrence data. Although we have not provided an independent estimate of uranium endowment, we have devised a methodology that will provide this independent estimate when additional calibration is done by enlarging the study area. Our statistical model for evaluation (system EVAL) ranks uranium endowment for each quadrangle. Becaus… more
Date: February 1, 1981
Creator: Koch, G. S., Jr.; Howarth, R. J. & Schuenemeyer, J. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Mechanisms of lignin biosynthesis during xylogenesis in Zinnia elegans. Final report, July 1, 1992--June 30, 1996

Description: This project initially focused on identifying and characterizing three components of the extracellular lignification reaction: peroxidases, hydrogen peroxide production, and oxygen dependent oxidases. Zinnia elegans was utilized for the model organism. Laccase activity was found to be more tightly correlated with lignification than peroxidase activity.
Date: May 1, 1997
Creator: Eriksson, K.E.L. & Dean, J.F.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Spectroscopy at metal cluster surfaces. Final report, September 15, 1993--September 14, 1996

Description: The focus of this research program is the study of gas phase metal clusters to evaluate their potential as models for the fundamental interactions present in catalysis. To do this, the authors characterize the chemical bonding present between the component atoms in metal clusters as well as the bonding exhibited by {open_quotes}physisorption{close_quotes} on metal atom or metal cluster surfaces. Electronic spectra, vibrational frequencies and bond dissociation energies are measured for both neu… more
Date: June 1, 1998
Creator: Duncan, M. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Tidal salt marshes of the southeast Atlantic Coast: A community profile

Description: This report is part of a series of community profiles on the ecology of wetland and marine communities. This particular profile considers tidal marshes of the southeastern Atlantic coast, from North Carolina south to northern Florida. Alone among the earth's ecosystems, coastal communities are subjected to a bidirectional flooding sometimes occurring twice each day; this flooding affects successional development, species composition, stability, and productivity. In the tidally influenced salt m… more
Date: September 1, 1990
Creator: Wiegert, Richard G. & Freeman, Byron J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Hemicellulases from the ethanologenic thermophile Thermoanaerobacter ethanolicus and related anaerobic thermophiles. Final report, September 1992--June 1996

Description: The SHORT TERM GOALS of this application were to characterize hemicellulases from anaerobic thermophiles on the biochemical and molecular level to extend the presently limited knowledge of hemicellulases in anaerobic thermophilic bacteria. This objective includes the following TASKS: (1) Traditional purification and biochemical/biophysical characterization of xylanases from the newly isolated, slightly alkalitolerant strain NDF190, and the slightly acid-tolerant strain YS485, both with high xyl… more
Date: May 1, 1998
Creator: Wiegel, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The hemicellulases from the ethanologenic thermophile, Thermoanaerobacter ethanolicus and similar anaerobic thermophiles. Annual technical progress report

Description: A Xylanase was fractionated from Thermoanaerobacter ethanolicus, an ethanologenic thermophile, and the preparation so obtained was used to determined enzymatic parameters such as pH profile of enzyme activity. The ability of various mono- and di-saccharides as well as temperature variations to induce this enzyme activity were studied.
Date: July 1, 1995
Creator: Wiegel, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Error contours for Student's t under nonnormality

Description: Geary (Biometrika 34, 1947) has introduced a differential series for the density function of Student's t under nonnormality where the sample population is assumed to have finite moments up to a certain order. If (K/sub r/) and (K'/sub r/) are the cumulants of t under the two regimes (normality and nonnormality), then the discrepancies (K/sub r/--K'/sub r/) can be ordered with respect to sample size, in an ordering in powers of 1/..sqrt..n(n = sample size) of the modified density … more
Date: January 1, 1977
Creator: Bowman, K. O.; Beauchamp, J. J. & Shenton, L. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Moment series for moment estimators of the parameters of a Weibull density

Description: Taylor series for the first four moments of the coefficients of variation in sampling from a 2-parameter Weibull density are given: they are taken as far as the coefficient of n/sup -24/. From these a four moment approximating distribution is set up using summatory techniques on the series. The shape parameter is treated in a similar way, but here the moment equations are no longer explicit estimators, and terms only as far as those in n/sup -12/ are given. The validity of assessed moments and … more
Date: January 1, 1982
Creator: Bowman, K.O. & Shenton, L.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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