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Over production of lignocellulosic enzymes of Coriolus versicolor by genetic engineering methodology. Final report

Description: The project seeks to understand the biological and chemical processes involved in the secretion of the enzyme polyphenol oxidase (PPO) by the hyphae, the basic unit of the filamentous fungus Coriolus versicolor. These studies are made to determine rational strategies for enhanced secretion of PPO, both with the use of recombinant DNA techniques and without. This effort focuses on recombinant DNA techniques to enhance enzyme production. The major thrust of this project was two-fold: to mass prod… more
Date: July 1, 1998
Creator: Williams, A. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Annual symposium on Frontiers in Science

Description: This final report summarizes activities conducted for the National Academy of Sciences' Annual Symposium on Frontiers of Science with support from the US Department of Energy for the period July 1, 1993 through May 31, 1998. During the report period, five Frontiers of Science symposia were held at the Arnold and Mabel Beckman Center of the National Academies of Sciences and Engineering. For each Symposium, an organizing committee appointed by the NAS President selected and planned the eight ses… more
Date: December 31, 1998
Creator: Metzger, N. & Fulton, K.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Molecular characterization of a novel heavy metal uptake transporter from higher plants and its potential for use in phytoremediation. 1998 annual progress report

Description: 'Soils and waters contaminated with high levels of heavy metals such as Cadmium, Lead and Copper are detrimental to human and environmental health. Many human disorders have been attributed to environmental contamination by heavy metals. Removal of heavy metals from highly contaminated sites is therefore a very costly but necessary process that is currently being pursued. Recent research in several laboratories indicates that uptake of heavy metals into plants via the root system may provide a … more
Date: June 1, 1998
Creator: Schroeder, J.I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Final Report: Comparative Studies in the Field of Mouse and Human Leukemia, June 1, 1991 - October 31, 1994

Description: Early in the work on this grant the authors established that the growth factor-dependence of radiation-induced thymic leukemia cells was dependent on the autocrine/paracrine growth factor IL-4. Localized, thymic leukemias always grew by virtue of an IL-4-driven autocrine/paracrine pathway. They continued and investigated the mechanism of progression of the thymic leukemias to the later, disseminate disease. Linking the generation of disseminated leukemias to their growth factor-dependent status… more
Date: December 1, 1998
Creator: Haas, Martin
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Final Technical Report. Origins of subsurface microorganisms: Relating laboratory microcosm studies to a geologic time scale.

Description: This project was conducted as part of the Department of Energy's Deep Subsurface Science Program. It was part of a larger effort to determine the origins of subsurface microorganisms. Two hypotheses have been suggested for the origins of subsurface microorganisms: (1) microorganisms were deposited at the time of (or shortly after) geologic deposition of rocks and sediments (the in situ survival hypothesis), and (2) microorganisms have been transported from surface environments to subsurface roc… more
Date: December 1, 1998
Creator: Kieft, Thomas; Amy, Penny S. & Phillips, Fred M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effects of CO{sub 2} and nitrogen fertilization on growth and nutrient content of juvenile ponderosa pine

Description: This data set presents measured values of plant diameter and height, biomass of plant components, and nutrient (carbon, nitrogen, phosphorus, sulfur, potassium, calcium, magnesium, boron, copper, iron, manganese, and zinc) concentrations from a study of the effects of carbon dioxide and nitrogen fertilization on ponderosa pine (Pinus ponderosa Dougl. ex Laws.) conducted in open-top chambers in Placerville, California, from 1991 through 1996. This data set contains values from 1991 through 1993.
Date: March 1, 1998
Creator: Johnson, D. W.; Ball, J. T.; Walker, R. F. & Cushman, R. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ammonium and nitrate uptake lengths in a small forested stream determined by {sup 15}N tracer and short-term nutrient enrichment experiments

Description: Nutrient cycling is an important characteristic of all ecosystems, including streams. Nutrients often limit the growth rates of stream algae and heterotrophic microbes and the decomposition rate of allochthonous organic matter. Nutrient uptake (S{sub W}), defined as the mean distance traveled by a nutrient atom dissolved in stream water before uptake by biota is often used as an index of nutrient cycling in streams. It is often overlooked, however, that S{sub W} is not a measure of nutrient upt… more
Date: November 1, 1998
Creator: Mulholland, P.J.; Tank, J.L.; Sanzone, D.M.; Webster, J.R.; Wollheim, W.; Peterson, B.J. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

National conference on environmental remediation science and technology: Abstracts

Description: This conference was held September 8--10, 1998 in Greensboro, North Carolina. The purpose of this conference was to provide a multidisciplinary forum for exchange of state-of-the-art information on methods and site characterization technologies for environmental monitoring and remedial action planning of hazardous materials. This report contains the abstracts of sixty-one papers presented at the conference.
Date: Autumn 1998
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The photosynthesis - leaf nitrogen relationship at ambient and elevated atmospheric carbon dioxide: a meta-analysis

Description: Estimation of leaf photosynthetic rate (A) from leaf nitrogen content (N) is both conceptually and numerically important in models of plant, ecosystem and biosphere responses to global change. The relationship between A and N has been studied extensively at ambient CO{sub 2} but much less at elevated CO{sub 2}. This study was designed to (1) assess whether the A-N relationship was more similar for species within than between community and vegetation types, and (2) examine how growth at elevated… more
Date: September 25, 1998
Creator: Peterson, Andrew G.; Ball, J. Timothy; Luo, Yiqi; Field, Christopher B.; Reich, Peter B.; Curtis, Peter S. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Keystone Center Final Technical Report

Description: The Keystone Center began its work with the Environmental Management Science Program (EMSP) in May, 1996, when The Center agreed to design, organize, and facilitate stakeholder meetings at two DOE sites: Savannah River and Hanford. These meetings were held June 24--25, 1996 for the purpose of discussing the role of EMSP in constructing a site-specific basic research agenda that maps site cleanup needs to basic science areas. Summaries of the discussions from these meetings as well as lists of t… more
Date: January 22, 1998
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Literature review: Phytoaccumulation of chromium, uranium, and plutonium in plant systems

Description: Phytoremediation is an integrated multidisciplinary approach to the cleanup of contaminated soils, which combines the disciplines of plant physiology, soil chemistry, and soil microbiology. Metal hyperaccumulator plants are attracting increasing attention because of their potential application in decontamination of metal-polluted soils. Traditional engineering technologies may be too expensive for the remediation of most sites. Removal of metals from these soils using accumulator plants is the … more
Date: May 1, 1998
Creator: Hossner, L. R.; Loeppert, R. H.; Newton, R. J. & Szaniszlo, P. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental Science and Research Foundation, Inc. annual technical report: Calendar year 1997

Description: This Annual Technical Report describes work conducted for the Department of Energy, Idaho Operations Office (DOE-ID), by the Environmental Science and Research Foundation (Foundation). The Foundation`s mission to DOE-ID provides support in several key areas. The Foundation conducts an environmental monitoring and surveillance program over an area covering much of the upper Snake River Plain, and provides environmental education and support services related to Idaho National Engineering and Envi… more
Date: May 1, 1998
Creator: Reynolds, R.D. & Warren, R.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Preliminary Survey of Terrestrial Plant Communities in the Sierra de los Valles

Description: To more fully understand the species compositions and environmental relationships of high-elevation terrestrial plant communities in the Los Alamos region, 30 plots in randomly selected, upland locations were sampled for vegetation, topographic, and soils characteristics. The locations of these plots were constrained to be above 2,134 m (7,000 ft) above mean sea level. The field results were summarized, analyzed, and incorporated into a previously developed classification of vegetation and land… more
Date: October 1, 1998
Creator: Balice, Randy G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Petrology and Geochemistry of Neoproterozoic Arc Plutons Beneath the Atlantic Coastal Plain, SRS, SC

Description: In this report is presented first a brief review of the regional geologic setting of the Savannah River Site, descriptions of the plutonic rock units sampled here, whole rock geochemical data on the plutonic igneous rocks, and finally, a discussion of how the crystalline basement rocks of the Savannah River Site formed and how they may correlate with other terranes exposed in the Piedmont of the Carolinas, Georgia, and Virginia.
Date: October 21, 1998
Creator: Maryak, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Pathway engineering to improve ethanol production by thermophilic bacteria

Description: Continuation of a research project jointly funded by the NSF and DOE is proposed. The primary project goal is to develop and characterize strains of C. thermocellum and C. thermosaccharolyticum having ethanol selectivity similar to more convenient ethanol-producing organisms. An additional goal is to document the maximum concentration of ethanol that can be produced by thermophiles. These goals build on results from the previous project, including development of most of the genetic tools requir… more
Date: December 1998
Creator: Lynd, L. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Response of vegetation to carbon dioxide. Growth, yield and plant water relationships in sweet potatoes in response to carbon dioxide enrichment 1986

Description: In the summer of 1985, under the joint program of US Department of Energy, Carbon Dioxide Division, and Tuskegee University, experiments were conducted to study growth, yield, photosynthesis and plant water relationships in sweet potato plants growth in an enriched CO{sub 2} environment. The main experiment utilized open top chambers to study the effects of CO{sub 2} and soil moisture on growth, yield and photosynthesis of field-grown plants. In addition, potted plants in open top chambers were… more
Date: August 1, 1998
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced Techniques in Microbial and Molecular Biology: Laboratory Procedures for a Graduate Level Course

Description: Advanced laboratory techniques for Microbial and Molecular Biology at the graduate level are presented in this thesis. The procedures for the laboratory experiments are set forth in detail. This laboratory is conducted as two parts, each by a different professor. Part 1 covers the experiments conducted by Dr G.A.O. Donovan. These experiments include an introduction, staining procedures, biochemical reactions, mutagenesis experiment, essays,. preparation and analysis of plasmid DNA and various o… more
Date: August 1998
Creator: Kumar, Shalini
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Aquaculture information package

Description: This package of information is intended to provide background information to developers of geothermal aquaculture projects. The material is divided into eight sections and includes information on market and price information for typical species, aquaculture water quality issues, typical species culture information, pond heat loss calculations, an aquaculture glossary, regional and university aquaculture offices and state aquaculture permit requirements. A bibliography containing 68 references i… more
Date: August 1, 1998
Creator: Boyd, T. & Rafferty, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A study of bat populations at Los Alamos National Laboratory and Bandelier National Monument, Jemez Mountains, New Mexico: FY95--97 report to Los Alamos National Laboratory and Bandelier National Monument

Description: In 1995, a three-year study was initiated to assess the current status of bat species of concern, elucidate distribution and relative abundance, and obtain information on roosting sites of bats. The authors captured and released 1532 bats of 15 species (Myotis californicus, M. ciliolabrum, M. evotis, M. thysanodes, M. volans, M. yumanensis, Lasiurus cinereus, Lasionycteris noctivagans, Pipistrellus hesperus, Eptesicus fuscus, Euderma maculatum, Corynorhinus townsendii, Antrozous pallidus, Tadar… more
Date: December 31, 1998
Creator: Bogan, M. A.; O`Shea, T. J.; Cryan, P. M.; Ditto, A. M.; Schaedla, W. H.; Valdez, E. W. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Proceedings of national avian-wind power planning meeting 2

Description: This meeting was the second in a series. The purposes of this meeting were to: (1) provide information on avian/wind power interactions that will help meet the needs of regulators, researchers, and other stakeholders concerned with responsible development and permitting of wind plants; (2) create dialogue among regulators, researchers and other stakeholders to help all parties understand the role that research can play in responsible development and permitting of wind plants, and allow research… more
Date: February 1, 1998
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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