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Distribution of Aeromonas hydrophila in a South Carolina cooling reservoir. [Aeromonas hydrophila]

Description: Par Pond is a thermally enriched monomictic southeastern lake which receives heated effluent from a production nuclear reactor. Fish populations in the lake have lesions of epizooty from which Aeromonas spp. are readily isolated. Distribution and population densities of Aeromonas in the water column were measured along an oxygen and temperature gradient. Greater population densities of Aeromonas occurred below the oxygen chemocline when the lake was stratified. Survival of A. hydrophila under i… more
Date: January 1, 1977
Creator: Fliermans, C. B.; Gorden, R. W.; Hazen, T. C. & Esch, G. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Discovery of a Thermophilic Nitrogen Fixing Bacterium

Description: The thermophilic bacterium designated NT-7 was shown to reduce acetylene to ethylene at 35 C. It was found that the organism does not reduce acetylene when it is grown in Burk's medium with 0.3 per cent (w/v) NH4 N0 3 . Reduction of acetylene at 55 C could not be demonstrated due to insolubility of acetylene in Burk's medium at this temperature. It was shown that the bacterium NT-7 can not grow in the absence of atmospheric nitrogen at 55 C when combined nitrogen is not supplied with the nutrie… more
Date: August 1977
Creator: Tabarya, Daniel
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Analysis of factors influencing the impingement of threadfin shad (Dorosoma pretenense) at power plants in the southeastern United States

Description: Data on intake design and location, plant operating procedures, water quality, numbers of fish impinged, and sampling procedures were analyzed for 27 fossil-fueled and 5 nuclear power plants located on inland waters in the southeastern United States. Small (less than 9 cm) clupeids, especially threadfin shad (Dorosoma pretenense), comprised the majority of the fish impinged at these facilities. The parameter that was most strongly associated with shad impingement was water temperature. Maximum … more
Date: January 1, 1977
Creator: Loar, J. M.; Griffith, J. S. & Kumar, K. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Effect of Amino Acids on Growth and Cartenogenesis in Corynebacterium Species Strain 7E1C

Description: Studies were evaluated on the effects of known growth factors on the growth and carotenogenesis of Corynebacterium species strain 7ElC. The complex medium, Tryptic Soy Broth,was found to stimulate growth and production of more pigment in the light and in the dark than did a mineral salts-glucose medium. A complete amino acid mixture added to LSG enhanced carotenogenesis in the dark in Corynebacterium 7ElC, while B-vitamins retarded carotenogenesis. No absolute requirement for one or more amino … more
Date: May 1977
Creator: Coughran, Carolyn S.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Studies of the genetic material of some RNA viruses. Final report

Description: Studies of the genetic material of some RNA viruses showed that strains of the plant virus, TMV, fall into groups and within a group there is no appreciable nucleotide sequence divergence between the strain RNAs. A study was initiated into the molecular biology of replication of the POTY plant virus group that includes tobacco etch virus.
Date: January 1, 1977
Creator: Siegel, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Energy transfer mechanisms in photobiological reactions. Progress report, 1 August 1976--31 July 1977

Description: Progress is reported on the following studies: chemical structure of biomolecules and mechanisms of their sensitized photo-oxidation; relationships between the structure and photosensitizing efficiencies of porphyrins; effects of photodynamic treatment on mammalian tendons; and sensitized photo-oxidation of substituted uracils, methionine, other amino acids, and horse-radish peroxidase. (HLW)
Date: July 31, 1977
Creator: Spikes, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cyclic electron transport in photosynthesis

Description: In intact spinach chloroplasts, aerobic rates of HCO/sub 3//sup -/ supported oxygen evolution in saturating light are several-fold higher than rates observed under near anaerobic conditions. The lower anaerobic rates are accelerated by antimycin A or by uncouplers. Antimycin A, however, does not uncouple under the conditions used but appears to be a selective inhibitor of cyclic electron flow. With its aid, the contribution of cyclic flow to photosynthetic energy transduction can be evaluated. … more
Date: January 1, 1977
Creator: Hind, G.; Mills, J. D. & Slovacek, R. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Thermoregulation and temperature relations of alligators and other large ectotherms inhabiting thermally stressed habitats. Progress report, 1 October 1974--30 September 1977

Description: Significant progress has been made in determining the mechanisms by which large ectotherms adjust to thermal stress in their natural environment. The effect of mouth gaping on head temperatures and the role of radiation, conduction and convection on body temperatures of alligators have been determined. The utility of energy budget modeling as a method for studying the thermoregulatory mechanisms of animals has been demonstrated. Steady state and time dependent models of body temperature have be… more
Date: June 1, 1977
Creator: Spotila, J. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Aeromonas hydrophila as an agent of infection in alligators. Phase I, final report. Progress report, September 1, 1976--September 30, 1977, Part I

Description: Experimental alligators were exposed to various concentrations of young, washed cells of Aeromonas hydrophila under controlled conditions. Responses of all alligators were monitored on the basis of: observations of external lesions; immunoglobulin production; blood chemistry and hematology; bacteriology, parasitology, and pathology of internal organs, skeletal muscle and external lesions at necropsy. The findings are summarized.
Date: January 1, 1977
Creator: Gorden, R. W. & Esch, G. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Automatic gas analysis system for continuous monitoring of oxygen and carbon dioxide exchange in terrestrial ecosystems. [Measurement of CO/sub 2/ production and O/sub 2/ consumption by small terrestrial vertebrates in natural habitat]

Description: An automatic, continuous flow, gas analysis system was designed to monitor metabolic rates of terrestrial vertebrates over relatively long periods of time, such as daily cycles, under field conditions in the absence of the investigator. The gas analysis system described in this report used an infrared absorption analyzer for carbon dioxide and a paramagnetic analyzer for oxygen. The simultaneous measurement of CO/sub 2/ production and O/sub 2/ consumption by an organism permitted the direct cal… more
Date: June 1, 1977
Creator: Randolph, J. C. & Rau, F. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Effect of Light on Carotenoid Synthesis in Corynebacterium 7E1C

Description: The effects of light, light "mimicking" chemicals, and protein synthesis inhibitors on the photo-induced carotenogenesis of Corynebacterium 7EIC were studied. Changes in the dosage of fluorescent light applied to dark grown cells showed a dose related carotenogenic response. Maintaining the same dosage but varying the wavelength of monochromatic light revealed that light with a wavelength of 280 to 450nm was responsible for photo-induction. It further showed a peak of photo-induction between th… more
Date: May 1977
Creator: Endicott, George R.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Ecological research at the Savannah River Ecology Laboratory. Annual report

Description: Research is organized around two major programs: thermal and aquatic stress and mineral cycling. These programs are strengthened by a previously established foundation of basic ecological knowledge. Research in basic ecology continues to be a major component of all SREL environmental programs. Emphasis in all programs has been placed upon field-oriented research relating to regional and local problems having broad ecological significance. For example, extensive research has been conducted in th… more
Date: May 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Interactions of Corbicula sp. with power plants. [Power plant condenser fouling by clams, use of waste heat for control of fouling by clams, and use of thermal effluents in clam aquaculture]

Description: There are three perspectives with which to view the interaction of Corbicula and power plants: as a fouling agent; as an important part of the natural ecosystem; and as a potential species for use in waste heat aquaculture. The first two of these interactions are essentially negative in character, since they involve avoidance of impacts either of Corbicula on power plant operation or of power plant operation on Corbicula. Condenser fouling by these claims has been controlled by mechanical means… more
Date: January 1, 1977
Creator: Mattice, J. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Thermoregulation and temperature relations of alligators and other large ectotherms inhabiting thermally stressed habitats. Annual progress report, 1 July 1976--30 September 1977. [Ecology of Par Pond, Savannah River Reservation]

Description: Progress is reported on studies of the biophysical and thermal relationships between large ectotherms and their aquatic environment. Data are reported from laboratory and field studies on alligators, turtles, and fish. Mathematical models of the effect of body size and physical characteristics on temperature regulation of ectotherms and of thermal stress in aquatic organisms were developed. Results are included of field studies on the physiological and behavioral adjustments of turtles in respo… more
Date: June 1, 1977
Creator: Spotila, J. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Impact of thermal loading and other water quality parameters on the epizootiology of Epistylis and Aeromonas infections of centrarchids. Progress report, September 1, 1976--July 30, 1977

Description: During the past year, mounting evidence has been accumulated which indicates that the causative agent for red-sore disease among bass is the bacterium, Aeromonas hydrophila, and not the ciliate, Epistylis, as suggested in previous literature. Red-sore disease among bass in Par Pond continues to be highly seasonal with peak periods of infection occurring in spring and summer, with declining levels in fall and summer. The disease continues to be more prevalent among bass from thermally altered ar… more
Date: August 1, 1977
Creator: Esch, Gerald W. & Dimock, Ronald V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analyses of hydrocarbons in BLM sediment intercalibration sample from Santa Barbara basin and spiked with API South Louisiana crude oil. A preliminary report

Description: A preliminary report is made of a BLM intercalibration sediment sample from the Santa Barbara basin spiked with South Louisiana crude oil. The two subsamples reported were analyzed by a procedure described in the appendix for which a separate abstract was written. Because of the high oil content of the sediment the usual thin layer chromatography procedure resulted in an overloaded plate. An appendix was indexed separately. (JSR)
Date: January 1, 1977
Creator: Farrington, J W; Tripp, B W & Sass, J
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Aquaculture Report:1976

Description: Growth of channel catfish (Ictalurus punctatus) and Tilapia zillii in the Reft River Geothermal Area (RRGT) geothermal waters can equal or surpass that in a commercial aquaculture facility. Fish and prawn mortality over the course of the intermediate term preliminary study did not appear to be related to any inherent geothermal water chemistry conditions. Temperature control was a problem but does not appear to be beyond design control. The absence of temperature-related mortality in channel ca… more
Date: April 8, 1977
Creator: Campbell, Donald K.; Watson, Lynn; Kent, James C. & Johnson, Donald W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

List of ERDA radioisotope customers with summary of radioisotope shipments, FY 1976

Description: The thirteenth edition of the ERDA radioisotope customer list has been prepared at the request of the Office of Program Coordination, Office of the Assistant Administrator. The purpose of the document is to list the FY 1976 commercial radioisotope production and distribution activities of ERDA facilities at Argonne National Laboratory, Battelle, Pacific Northwest Laboratories, Brookhaven National Laboratory, Hanford Engineering Development Laboratory, Idaho Operations Office, Los Alamos Scienti… more
Date: March 1, 1977
Creator: Simmons, J. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental baseline study of the Los Medanos Waste Isolation Pilot Plant (WIPP) project area of New Mexico: a progress report

Description: Exploratory drilling operations are being conducted for a Waste Isolation Pilot Program in southeastern New Mexico. Prior to the establishment of such a program, an environmental study was initiated to serve as a baseline for evaluation of the impact of future activities in the Los Medanos area. Much of this area has been influenced by human activities over a long period, and hence the baseline data only reflects the present, relatively disturbed condition of the environment. The study covers a… more
Date: September 1, 1977
Creator: Wolfe, H.G. (ed.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Proposal for a national synchrotron light source

Description: Since 1971 discussions have been held at Brookhaven National Laboratory on the desirability of construction of a storage ring which would be used exclusively for production of intense beams of photons with wavelengths in the ultraviolet and X-ray ranges. A proposal is given which discusses in detail the machine, its characteristics, and its expected uses. The proposal includes: (1) characteristics of synchrotron radiation; (2) scientific justification for a synchrotron radiation facility; (3) f… more
Date: February 1, 1977
Creator: Blewett, J. P. (ed.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Topical report on sources and systems for aquatic plant biomass as an energy resource

Description: Background information is documented on the mass cultivation of aquatic plants and systems design that is available from the literature and through consultation with active research scientists and engineers. The biology of microalgae, macroalgae, and aquatic angiosperms is discussed in terms of morphology, life history, mode of existence, and ecological significance, as they relate to cultivation. The requirements for growth of these plants, which are outlined in the test, suggest that producti… more
Date: October 21, 1977
Creator: Goldman, J. C.; Ryther, J. H.; Waaland, R. & Wilson, E. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

MAP3S precipitation chemistry network: first periodic summary report, (September 1976--June 1977)

Description: The MAP3S Precipitation Chemistry Network consists of four sites (to be expanded to 8 to 12) located in a north-south line from northern New York State to northwestern Virginia. Precipitation event samples are collected by cooperating site operators, using specially developed sampling equipment. The concentration data collected over the period September 22, 1976 (first collected sample) to July 1, 1977, are listed as a summary of the data reported monthly throughout the year. Samples were chemi… more
Date: October 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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