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EXTRATERRESTRIAL LIFE: SOME ORGANIC CONSTITUENTS OF METEORITES ANDTHEIR SIGNIFICANCE FOR POSSIBLE EXTRATERRESTRIAL BIOLOGICALEVOLUTION (open access)

EXTRATERRESTRIAL LIFE: SOME ORGANIC CONSTITUENTS OF METEORITES ANDTHEIR SIGNIFICANCE FOR POSSIBLE EXTRATERRESTRIAL BIOLOGICALEVOLUTION

In order to decide the value and type of information to be obtained from outer space with regard to its pertinence for the evolution of life, a brief review is presented of the current status of our thinking on the origin of life on earth. This points up the particular kinds of chemicals whose presence, or absence, on other astral bodies might be significant. Heretofore, the only data available are the result of telescopic spectroscopy. We report here information indicating the presence in meteorites of complex organic materials, some of them apparently uniquely pertinent to life processes.
Date: December 7, 1959
Creator: Calvin, Melvin & Vaughn, Susan K.
System: The UNT Digital Library
PHASE SHIFTS IN pi+ -p SCATTERING AT 310 Mev (open access)

PHASE SHIFTS IN pi+ -p SCATTERING AT 310 Mev

In an experimental program recently completed at the 184-inch synchrocyclotron in Berkeley, data were obtained on elastic {pi}{sup +}-p scattering at a laboratory energy of 310 Mev. Quantities measured were the differential cross section, the total cross section, and the polarization of the recoil protons as a function of center-of-mass angle. We have analyzed the data in terms of S, P, and D waves and have obtained only one acceptable solution. The resultant set of phase shifts is of the Fermi type. The D-wave phase shifts are small but definitely needed to obtain an adequate fit to the data. Owing to the relatively high accuracy of the cross-section data and the inclusion of the results of the polarization experiment, the errors on the small phase shifts have been reduced to less than 1{sup 0}. The differential cross-section and polarization data are given in Tables I and II.
Date: November 18, 1959
Creator: Foote, James H.; Chamberlain, Owen; Rogers, Ernest H.; Steiner,Herbert M.; Wiegand, Clyde & Ypsilantis, Tom
System: The UNT Digital Library
FRACTIONATION OF THE INSOLUBLE MATERIAL OF CHLORELLA CELLS (open access)

FRACTIONATION OF THE INSOLUBLE MATERIAL OF CHLORELLA CELLS

None
Date: November 1, 1959
Creator: Stange, Luis; Moses, V. & Calvin, M.
System: The UNT Digital Library
THE PHOTOVOLTAIC EFFECT AND PHOTOCONDUCTIVITY IN LAMINATED ORGANICSYSTEMS (open access)

THE PHOTOVOLTAIC EFFECT AND PHOTOCONDUCTIVITY IN LAMINATED ORGANICSYSTEMS

As a result of a wide variety of studies on photosynthesis in living plants and plant fragments, together with the development of photosensitive, photovoltaic junctions in inorganic crystals and the discovery and exploration of semiconduction in organic molecular substances, a suggestion has been made that the primary quantum conversion process in photosynthetic tissues involves the creation and separation of charge to opposite sides of an asymmetrically-constructed lamina, followed by the trapping of both the electrons and the holes which then lead to their respective chemical processes, namely reduction of carbon dioxide and oxidation of the water to oxygen. This has led us to study model systems as semiconductors with a view to creating an organic photovoltaic junction.
Date: September 1, 1958
Creator: Kearns, David & Calvin, Melvin
System: The UNT Digital Library
Graphite radiation damage as a reactor operational problem (open access)

Graphite radiation damage as a reactor operational problem

Radiation Damage to the graphite moderator has played an important role in the history of reactor operation at Hanford. The operational problems, potential and real, which result from dimensional instability, stored energy, and gasification, as well as the solutions to these problems are discussed. The key to the graphite problems is operating temperature and its control. At present, stack expansion remains in the fringe regions of the original reactors, which coupled with the contraction of the central region gives rise to curvature problems in the top portion of the reactors. Stored energy is not a safety hazard because the release spectrum is such that a spontaneous and self sustained release cannot occur. Oxidation of the graphite moderator is controlled by maintaining operating temperature of the stack such that no significant amount of oxidation occurs.
Date: April 14, 1958
Creator: Curtiss, D. H.
System: The UNT Digital Library
L'Archeveque: The Outlaw (open access)

L'Archeveque: The Outlaw

This brief article by J. Evetts Haley details the interactions between Charles Goodnight and the Mexican outlaw, Sostenes Archeveque.
Date: Autumn 1958
Creator: Haley, J. Evetts
System: The Portal to Texas History
Investigation of Gamma Sterilization. Final Report for the Period July 1, 1953 through June 30, 1954. Research Report No. 3-54 (open access)

Investigation of Gamma Sterilization. Final Report for the Period July 1, 1953 through June 30, 1954. Research Report No. 3-54

None
Date: October 1, 1954
Creator: Denny, C. B.; Bohrer, C. W. & Reed, J. M.
System: The UNT Digital Library
Pyrometallurgical Purification of Plutonium Reactor Fuels (open access)

Pyrometallurgical Purification of Plutonium Reactor Fuels

Pyrometallurgical methods studied are liquation, self-drossing and filtration, slagging by the addition of oxide, carbide, or halide, liquid metal extraction, complete conversion to halide, followed by filtration and selective reduction of the plutonium, and electrorefininng. Experimental techniques and results are presented for each method. (auth)
Date: June 1, 1958
Creator: Leary, J.A.; Benz, R.; Bowersox, D.F.; Bjorklund, C.W.; Johnson, K.W.R.; Maraman, W.J. et al.
System: The UNT Digital Library
Ion exchange properties of hydrous oxides (open access)

Ion exchange properties of hydrous oxides

The large class of amorphous insoluble hydrous oxides has interesting ion exchange properties. These materials have high capacities and suitable exchange rates and may therefore be used in packed columns in typical chromatographic (ion exchange) manner. Hydrous oxides may exhibit either cation exchange or anion exchange properties, or both. The type of adsorption depends on the element on which the oxide is based, on the acidity of the medium and, to some extent, on the ion adsorbed. Though some of the most acidic oxides are soluble (e.g., P/sub 2/O/sub 5/) or easily dispersible (e.g., MoO/sub 3/ WO/sub 3/) their intrinsic cation exchange properties may be utilized by incorporating them in excess into an insoluble matrix, i.e., by preparing certain insoluble acidic salts. Some of the materials with cation exchange properties may be used even with extremely small columns - for the separation of the alkali metals from each other - or of the alkaline earths. The specificity of these compounds for cesium in acidic solutions permits the almost unique isolation of this element from properties all others. Those oxides with anion exchange properties also have unusual selectivities compared with the organic ion exchangers. Oxides based on Bi(III) have high selectivities …
Date: June 1, 1958
Creator: Kraus, K. A.; Phillips, H. O.; Carlson, T. A. & Johnson, J. S.
System: The UNT Digital Library
Aqueous Decontamination of Plutonium From Fission Product Elements (open access)

Aqueous Decontamination of Plutonium From Fission Product Elements

None
Date: June 1, 1958
Creator: Winchester, R. S. & Maraman, W. J.
System: The UNT Digital Library
Responsibility of the Surgeon in Comprehensive Care of the Hospitalized Patient (open access)

Responsibility of the Surgeon in Comprehensive Care of the Hospitalized Patient

Article reprinted from the Texas State Journal of Medicine, addressing the issues of overcrowding and lack of staff in hospitals, as well as nursing practices.
Date: June 1958
Creator: Blocker, T. G., Jr.
System: The Portal to Texas History
[Draft of an article about Dr. May Owen] (open access)

[Draft of an article about Dr. May Owen]

Draft of an article about Dr. May Owen. The article discusses her background, career, accomplishments, and major contributions to medicine.
Date: April 15, 1959
Creator: McBee
System: The Portal to Texas History
Radiochemical Studies of the Fast Neutron Fission of U$sup 235$ and U$sup 238$ (open access)

Radiochemical Studies of the Fast Neutron Fission of U$sup 235$ and U$sup 238$

Radiochemical studies of the fast neutron fission of U/sup 235/ and U/sup 238/ have been made in the mass region beyond mass 143 with two neutron energy distributions. These studies provide measurements of the relative fission yields of several chains in the rare earth group in fission of U/sup 235/ and U/sup 238/ caused by neutrons with an energy distribution very close to unmoderated fission neutrons and by neutrons with an energy distribution peaked at 8 Mev. The increased contribution of very asymmetric modes of fission as the energy of the compound nucleus is increased is clearly shown by the results. In the fission of U/sup 238/ the yield at mass 161 is increased 2.9 times at the higher neutron energy. No previous measurements have been published on radiochemical studies of the fission of U/sup 238/at these neutron energies beyond mass 144 except at mass 156 for the lower neutron energy. (auth)
Date: June 1, 1958
Creator: Bunney, L. R.; Scadden, E. M.; Abriam, J. O. & Ballou, N. E.
System: The UNT Digital Library
UTILIZATION OF GROSS FISSION PRODUCTS. SUMMARY REPORT FOR PERIOD FEBRUARY 1, 1952-JUNE 30, 1954 (open access)

UTILIZATION OF GROSS FISSION PRODUCTS. SUMMARY REPORT FOR PERIOD FEBRUARY 1, 1952-JUNE 30, 1954

None
Date: October 31, 1955
Creator: unknown
System: The UNT Digital Library
TEST OF A DIRECT CYCLE NUCLEAR TURBOJET SYSTEM (open access)

TEST OF A DIRECT CYCLE NUCLEAR TURBOJET SYSTEM

This paper discusses research and development effort on a direct-cycle air-cooled nuclear reactor and propulsion equipment. The reactor experiment was designed, constructed, and tested during the period 1953 to 1956 to prove the feasibility of operating a turbojet engine from the heat produced by an air-cooled reactor. A description is given of the reactor, turbomachinery, shielding, control system, and associated equipment used in the first propulsion system test which was run in 1956. The system consisted of a modified J-47 turbojet engine arranged so that compressed air from the compressor was ducted through a shielded reactor and a chemical combustor in series before passing through the turbine and exhaust nozzle. The experimental reactor was based on a unique design concept in which water moderated at low temperature is contained in an aluminum core structure. The air-cooled metal fuel elements containing enriched uranium were arranged in passages running through the reactor. Thermal insulation was provided to protect the aluminum structure from the high temperature fuel elements and air, and to reduce heat losses to the moderator water. The entire reactor shield and turbojet assembly was mounted on a four-rail flat car for easy transfer by a shielded locomotive from the test …
Date: June 1, 1958
Creator: Shoults, D. R.
System: The UNT Digital Library
Catalysts for Recombination of Radiolytic Gases Over Thorium Oxide Slurries (open access)

Catalysts for Recombination of Radiolytic Gases Over Thorium Oxide Slurries

None
Date: December 12, 1956
Creator: Morse, L. E.
System: The UNT Digital Library
Some heat transfer and fluid friction experiments with supercritical water (open access)

Some heat transfer and fluid friction experiments with supercritical water

None
Date: November 1, 1956
Creator: Randall, David G.
System: The UNT Digital Library
A Wide Bandwidth Telemetry System (open access)

A Wide Bandwidth Telemetry System

This paper will describe a telemetry system which has a bandwidth of 250 mgacples, the uses to which it has been put and possible future uses.
Date: August 1, 1956
Creator: Henry, David E & Glass, R. E.
System: The UNT Digital Library
Dr. Henry G. Bennett as I Knew Him (open access)

Dr. Henry G. Bennett as I Knew Him

Article describes the career and accomplishments of Dr. Henry G. Bennett, who was president of Oklahoma A & M College, now Oklahoma State University, from 1928 to 1951. Berlin B. Chapman, who was a professor of history during Bennett's tenure, describes his impression of the president's impact.
Date: Summer 1955
Creator: Chapman, Berlin B.
System: The Gateway to Oklahoma History
Memories of the Indian Territory Mission Field (open access)

Memories of the Indian Territory Mission Field

Article describes the author's personal experiences as a student and teacher in Indian Territory. Lilah Denton Lindsey explores her own experience in the mission field as well as those she worked with. Included is an excerpt of a story told to her by Dr. R. M. Loughridge about early mission work in the area.
Date: Summer 1958
Creator: Lindsey, Lilah Denton
System: The Gateway to Oklahoma History
Pioneer Days in the Cherokee Strip (open access)

Pioneer Days in the Cherokee Strip

Article describes the 1893 opening of the Cherokee Strip as experienced by the author and her family. Clara Williamson Warren Bullard describes her family's settlement of their claim, water scarcity, growth of communities, and the cultivation of land.
Date: Autumn 1958
Creator: Bullard, Clara Williamson Warren
System: The Gateway to Oklahoma History
The Hook Nine Ranch in the Indian Territory (open access)

The Hook Nine Ranch in the Indian Territory

Article describes the establishment of the Hendrix and Royer Ranch, also known as the Hook Nine Ranch, in Indian Territory. Ellsworth Collings discusses the founders and the results of their cattle business, providing details about the ranch and its surroundings.
Date: Winter 1955
Creator: Collings, Ellsworth
System: The Gateway to Oklahoma History
Our Debt to the Iroquois (open access)

Our Debt to the Iroquois

Article describes the history of the federation of the Six Iroquois Nations: the Mohawks, Onondagos, Senecas, Oneidas, Cayugas, and Tuscaroras. J. F. Page describes how this group formed a basis of organization that white settlers would imitate, and whose agricultural practices also enlightened early Americans.
Date: Winter 1951
Creator: Page, J. F.
System: The Gateway to Oklahoma History
Guides to Inventory Policy: III. Anticipating Future Needs (open access)

Guides to Inventory Policy: III. Anticipating Future Needs

Article reprinted from The Harvard Business Review discussing the amount of inventory needed to meet seasonal sales peaks.
Date: 1956-05/1956-06
Creator: Magee, John F.
System: The Portal to Texas History