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BRANCHED ALKANES FROM BLUE-GREEN ALGAE

Description: Branched alkanes from blue-green algae were separated on a 750 feet high resolution capillary gas chromatographic column. The mixture was found to be 90% of 1:1 ratio 7-methyl, and 8-methyl-heptadecane, and 10% of 6-methylheptadecane. An optical rotation of +2.5 {+-} 0.5 was obtained on a 5 mg of mixture.
Date: August 1, 1970
Creator: Han, Jerry & Calvin, Melvin.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

MECHANISM OF CARCINOGENESIS OF THE POLYCYCLIC AROMATICHYDROCARBONS

Description: The carcinogenic activity of the benzo[a]pyrene 1, the 7,12-dimethylbenz[a]anthracene 2 and the 3-methylcholanthrene 3 is suggested to be determine by the electrophilic attack of the active oxygen, induced by the hydroxylating enzyme systems, on the most reactive substituting carbon atom(s). The cationic intermediate(s) with the charge mainly localized on a complementary, interrelated position(s) of the hydroxyl substituted position(s) reacts further with the cellular nucleophiles. The electrop… more
Date: August 1, 1970
Creator: Cavalieri, E. & Calvin, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

METHANE INCORPORATION BY PROCARYOTIC PHOTOSYNTHETICMICROORGANISMS

Description: The procaryotic photosynthetic microorganisms Anacystis nidulans, Nostoc and Rhodospirillum rubrum have cell walls and membranes that are resistant to the solution of methane in their lipid components and intracellular fluids. But Anacystis nidulans, possesses a limited bioxidant system, a portion of which may be extracellularly secreted, which rapidly oxidizes methane to carbon dioxide. Small C{sup 14} activities derived from CH{sub 4} in excess of experimental error are detected in all the ma… more
Date: August 1, 1970
Creator: Norton, Charles J.; Kirk, Martha & Calvin, Melvin
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

PHOTOCHEMICAL COUPLING OF BENZO [a]PYEENE WITH 1-METHYLCYTOSINE.POSSIBLE MECHANISM OF THE LINKAGE IN VIVO

Description: Irradiation of benzo[a]pyrene 1 with 1-methylcytosine hydrochloride 2a (molar ratio 1:10) at 3500 {angstrom} in methanol-acetone produces the 6-(1-methylcytos-5-yl)-benzo[pa]pyrene 3. The structure of the photoproduct shows the hydrocarbon bound through the most active 6-carbon atom to the nucleophilic 5-position of the base. The specific substitution of both moieties combined with other data allows them to understand the carcinogenic activity of the hydrocarbon and thereby to propose a possibl… more
Date: August 1, 1970
Creator: Cavalieri, E. & Calvin, M
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thulium oxide fuel characterization study: Part 1, Materials properties measurements. [Tm/sub 2/O/sub 3/-Yb/sub 2/O/sub 3/; thulium-170]

Description: A feasibility study was performed on encapsulated thulium-170 as an isotopic fuel for operation at temperatures to 1500/sup 0/C for 180 days. Effects of various combinations of fueled capsule design parameters were evaluated and compard to experimental data. A computer program was developed to predict dose rates through various thicknesses of aluminum, stainless steel, lead, tungsten and depleted uranium absorbers using thermoluminescent dosimetry techniques for experimental corroboration. A pr… more
Date: August 1, 1970
Creator: Nelson, C.A.; Anderson, R.W.; Fink, C.R.; Tse, A. & Fretague, W.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Measurement of Pair Interactions in Neodymium Ethyl Sulfate

Description: The EPR spectrum of single ions of /sup 143/Nd in a crystal of Neodymium Ethyl Sulfate, predominantly of isotope /sup 142/Nd, was observed under condition of very high Boltzmann factor, i.e., high fields and low temperatures. It was found that the interactions with neighboring ions displaced the hyperfine lines from uniform spacing, and that by measuring the deviation it was possible to find the nearest neighbor interaction. The departure from a purely magnetic dipolar interaction is smaller th… more
Date: August 1, 1970
Creator: King, A. R. & Jeffries, C. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

[News Script: Blacks]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, relating a news story.
Date: August 1, 1970, 6:00 p.m.
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Script
Partner: UNT Libraries Special Collections
open access

[News Script: Headlines]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, relating a news story.
Date: August 1, 1970, 10:00 p.m.
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Script
Partner: UNT Libraries Special Collections
open access

[News Script: Primaries]

Description: Photocopy of a script from the WBAP-TV/NBC station in Fort Worth, Texas, relating a news story.
Date: August 1, 1970, 10:00 p.m.
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Script
Partner: UNT Libraries Special Collections
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