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An Assay Method for Determining Extra-Cellular Lipases from Pseudomonas aeruginosa

Description: The applicability of an isotopically labelled assay system to determine the lipase production in Pseudomonas aeruginosa was evaluated. Supernatant from cultures of Pseudomonas aeruginosa grown in a medium containing olive oil was incubated with a substrate containing labelled trioleate. Fatty acids were isolated by means of a liquid-liquid partition system. Enzyme activity was determined by measuring the amounts of free fatty acid by liquid scintillation counting. Findings indicate that the iso… more
Date: May 1978
Creator: Christensen, John N.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Biological/environmental relationships in desert ecosystems of the Nevada Test Site. Progress report for period May 1, 1977--June 30, 1978

Description: Activities covered by the report are the preparation of reports on endangered and threatened plant species of central-southern Nevada; status of review of Camissonia heterochroma complex in western United States; gift of plant collections to the United States Museum of Natural History; and preparation of shrub data manuscript, and significant conclusions from the data.
Date: March 1, 1978
Creator: Beatley, J. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Division of Biological and Medical Research annual report 1978

Description: The research during 1978 in the Division of Biological and Medical Research, Argonne National Laboratory, is summarized. Studies related to nuclear energy include responses of beagles to continuous low-level /sup 60/Co gamma radiation, and development of leukemic indicators; comparison of lifetime effects in mice of low-level neutron and /sup 60/Co gamma radiation; genetic effects of high LET radiations; and metabolic and therapeutic studies of heavy metals. Studies of nonnuclear energy sources… more
Date: January 1, 1978
Creator: Rosenthal, M.W. (ed.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Catalog of North Texas State University: 1978-1979, Undergraduate

Description: The North Texas State University General Bulletin includes information about class offerings as well as general information about the university (academic calendar, admissions and degree requirements, financial information, etc.) about research, and about the colleges and schools on campus. Index starts on page 286.
Date: May 1978
Creator: North Texas State University
Item Type: Refine your search to only Book
Partner: UNT Libraries
open access

Proceedings of the biomagnetic effects workshop. [Lead abstract]

Description: Separate abstracts were prepared for six of the eight chapters contained in these proceedings. The other two chapters contain introductory material (Chapter 1) dealing with the rationale for the work shop, and a summary (Chapter 8) of the major objectives that were accomplished at the workshop relative to the current status of awareness in the field of biomagnetic effects. (ERB)
Date: January 1, 1978
Creator: Tenforde, T.S. (ed.)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Studies of methylglyoxal synthase: the distribution of enzyme and chemical mechanism of catalysis

Description: Methylgloxal synthase, which catalyzes the conversion of dihydroxyacetone phosphate to methylglyoxal and inorganic phosphate, has been found in several Enterobacteriaceae. The enzyme along with glyoxalase I and II and D-lactate oxidase, therefore, constitute a nonphosphorylated shunt of the normal glycolytic pathway
Date: May 1978
Creator: Yuan, Pau-Miau
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Catalog of North Texas State University, 1978-1979, Graduate

Description: The North Texas State University Graduate Bulletin includes information about class offerings as well as general information about the university (academic calendar, admissions and degree requirements, financial information, etc.) about research, and about the colleges and schools on campus. Index starts on page 284.
Date: June 1978
Creator: North Texas State University
Item Type: Refine your search to only Book
Partner: UNT Libraries
open access

Uncertainty analysis routine for the Ocean Thermal Energy Conversion (OTEC) biofouling measurement device and data reduction procedure. [HTCOEF code]

Description: Biofouling and corrosion of heat exchanger surfaces in Ocean Thermal Energy Conversion (OTEC) systems may be controlling factors in the potential success of the OTEC concept. Very little is known about the nature and behavior of marine fouling films at sites potentially suitable for OTEC power plants. To facilitate the acquisition of needed data, a biofouling measurement device developed by Professor J. G. Fetkovich and his associates at Carnegie-Mellon University (CMU) has been mass produced f… more
Date: March 1, 1978
Creator: Bird, S.P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Computational methodology in crystallography: evaluation and extension. Report of a workshop at Asilomar June 19--22, 1978

Description: The workshop tended to concentrate on joint activities where NRCC might facilitate cooperation among groups of people. This report gives lesser attention to the category of individual proposals for work to be assisted by NRCC. Recomendations are presented by the panels on systems, phasing, numerical refinement, graphics, and information retrieval. Abstracts of individual papers presented at the workshop are included in the report. (DLC)
Date: January 1, 1978
Creator: Templeton, D. & Johnson, C. (eds.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

State-of-the-art survey of joinability of materials for OTEC heat exchangers

Description: Literature and industrial sources were surveyed to assess, on the basis of apparent economics and reliability, the joinability of both shell-and-tube and compact ocean thermal energy conversion (OTEC) heat exchangers. A no-leak requirement is mandatory to prevent mixing seawater and the ammonia working fluid. The operating temperature range considered is 7 to 28/sup 0/C (45 to 82/sup 0/F). Materials evaluated were aluminum, titanium, copper--nickel, AL-6X austenitic stainless steel, singly and … more
Date: December 1, 1978
Creator: Beaver, R. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Movement and habitat studies of chinook salmon and white sturgeon. [Oncorhynchus tshawytscha, Acipenser transmontanus]

Description: Swimming depths of adult chinook salmon (Oncorhynchus tshawytscha), in relation to hydroelectric dam created gas supersaturation levels in the Snake River, were evaluated using pressure-sensitive radiofrequency transmitters. Gas saturation levels in spring 1976 ranged from 120 to 130% and chinook salmon depth of travel averaged 6.4 m. In fall 1976 and spring 1977, when gas saturation levels were below 108%, average salmon depths of travel were 3.0 and 4.0 m, respectively. In all cases, average … more
Date: September 1978
Creator: Haynes, J. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Functional complexity and ecosystem stability: an experimental approach

Description: The complexity-stability hypothesis was experimentally tested using intact terrestrial microcosms. Functional complexity was defined as the number and significance of component interactions (i.e., population interactions, physical-chemical reactions, biological turnover rates) influenced by nonlinearities, feedbacks, and time delays. It was postulated that functional complexity could be nondestructively measured through analysis of a signal generated from the system. Power spectral analysis of … more
Date: January 1, 1978
Creator: Van Voris, P.; O'Neill, R.V.; Shugart, H.H. & Emanuel, W.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Remeasurement of permanent vegetation plots in the Great Smoky Mountains National Park, Tennessee, USA, and the implications of climatic changes on vegetation. Environmental Sciences Division publication No. 1111

Description: This report summarizes field work over two summers (1976 and 1977) to relocate, monument and reinventory permanent vegetation plots in the Great Smoky Mountains National Park. These plots were first established by the senior author and R.H. Whittaker in 1959-62. The inventory results are discussed in terms of vegetation changes in high-altitudinal forest ecosystems, in particular the spruce-fir forests, and the factors, climate shift and biotic and abiotic agents, bringing about vegetation chan… more
Date: March 1, 1978
Creator: Becking, R. W. & Olson, J. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Pelagic Phytoplankton and Physicochemical Correlates for Lake Texoma

Description: An analysis and correlation of phytoplankton communities with physicochemical data from 3 sites in Lake Texoma was conducted to supplement time-series data. Water and phytoplankton were sampled monthly, March, 1976-February, 1977. Simple correlations were run between all physicochemical parameters and phytoplankton standing crop from the 3 sites. Multiple linear regression analyses were used to develop equations predictive of phytoplankton standing crop and chloride concentration. Minerals leac… more
Date: December 1978
Creator: McCullough, William P.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

North Texas State University Schedule of Classes: Summer 1978

Description: Schedule of classes at North Texas State University for the Summer semester providing a list of classes that will be offered by department, with times and locations. It also includes class indexes and other information about registration procedures, exams, tuition, and related topics.
Date: Summer 1978
Creator: North Texas State University
Item Type: Refine your search to only Book
Partner: UNT Libraries Special Collections
open access

North Texas State University Schedule of Classes: Fall 1978

Description: Schedule of classes at North Texas State University for the Fall semester providing a list of classes that will be offered by department, with times and locations. It also includes class indexes and other information about registration procedures, exams, tuition, and related topics.
Date: Autumn 1978
Creator: North Texas State University
Item Type: Refine your search to only Book
Partner: UNT Libraries Special Collections
open access

North Texas State University Schedule of Classes: Spring 1978

Description: Schedule of classes at North Texas State University for the Spring semester providing a list of classes that will be offered by department, with times and locations. It also includes class indexes and other information about registration procedures, exams, tuition, and related topics.
Date: Spring 1978
Creator: North Texas State University
Item Type: Refine your search to only Book
Partner: UNT Libraries Special Collections
open access

Health physics division annual progress report for period ending June 30, 1977

Description: This annual progress report follows, as in the past, the organizational structure of the Health Physics Division. Each part is a report of work done by a section of the division: Assessment and Technology Section (Part I), headed by H.W. Dickson; Biological and Radiation Physics Section (Part II), H.A. Wright; Chemical Physics and Spectroscopy Section (Part III), W.R. Garrett; Emergency Technology Section (Part IV), C.V. Chester, Medical Physics and Internal Dosimetry Section (Part V), K.E. Cow… more
Date: July 1, 1978
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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