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2,940
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1,105
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315 More
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Reservoir-Oil Characteristics, Aneth Field, San Juan County, Utah
Report issued by the Bureau of Mines over studies conducted on the characteristics of reservoir-oil sampled from San Juan County, Utah. The properties of each sample collected are presented. This report includes tables, graphs, maps, and illustrations.
Date:
1959
Creator:
Zaffarano, Richard F.; Cupps, Cecil Q. & Fry, J.
Object Type:
Report
System:
The UNT Digital Library
Titanium Minerals in the Heavy Sand Deposits of Assateague Island, Maryland
Report issued by the Bureau of Mines over titanium deposits of Assateague Island, Maryland. As stated in the introduction, "the purpose of this project was to study a typical coastal deposit of beach sands in the Middle Atlantic States, particularly in the area surrounding the Delmarva Peninsula" (p. 1). This report includes tables, maps, and illustrations.
Date:
1959
Creator:
Kuster, W. V.
Object Type:
Report
System:
The UNT Digital Library
Tungsten Deposits of Yuma, Maricopa, Pinal, and Graham Counties, Arizona
Report issued by the Bureau of Mines over tungsten deposits of Arizona. Characteristics of the tungsten deposits are discussed. This report includes tables, maps, and illustrations.
Date:
1959
Creator:
Dale, Vernon B.
Object Type:
Report
System:
The UNT Digital Library
Exploration of Lead-Zinc Deposits in the Ross Basin-Lake Como Area, San Juan County, Colorado
Report issued by the Bureau of Mines over exploration of lead-zinc deposits in Colorado. The geology, location, and physical features of the deposits are discussed. This report includes tables, maps, photographs, and illustrations.
Date:
1959
Creator:
Hild, John H. & Rose, C. K.
Object Type:
Report
System:
The UNT Digital Library
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.
Object Type:
Article
System:
The UNT Digital Library
ELECTRICAL PROPERTIES OF ORGANIC SOLIDS. I. KINETICS AND MECHANISMOF CONDUCTIVITY OF METAL-FREE PHTHALOCYANINE
Techniques involving the use of high-intensity short-duration light pulses have been applied t o the study of the kinetics of photoconductivity in films of metal-free phthalocyanine. These experiments, in conjunction with measurements of steady-state photoconductivity, are consistent with the following scheme. The principal route for the formation of charge carriers is via the first excited singlet state, although the lowest triplet state can, t o some extent, contribute to charge - carrier production. The mobility of the carriers is low and is concentration-dependent, being lower at higher carrier concentration. The decay of the photocurrent is the result of a diffusion-limited bimolecular recombination, with a capture radius of approximately one molecular diameter. The experiments indicate that carriers produced thermally in the dark do not interact with light-produced carriers.
Date:
July 29, 1959
Creator:
Tollin, Gordon; Kearns, David R. & Calvin, Melvin.
Object Type:
Report
System:
The UNT Digital Library
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
Object Type:
Article
System:
The UNT Digital Library
NUCLEAR PROPERTIES OF ANTINUCLEONS
None
Date:
December 10, 1959
Creator:
Segre, Emilio
Object Type:
Report
System:
The UNT Digital Library
ELECTRICAL PROPERTIES OF ORGANIC SOLIDS. II: EFFECTS OF ADDEDELECTRON ACCEPTOR ON METAL-FREE PHTHALOCYANINE
The addition of ortho-chloranil to the surface of films of metal-free phthalocyanine has been found (a) to increase the dark conductivity of such films by as much as 10{sup 7}, (b) to increase the steady-state photoconductivity by as much as 10{sup 5}, and (c) to result in the formation of unpaired electrons whose concentration decreases reversibly as a result of illumination. These systems exhibit a light-induced polarization, the phthalocyanine layer becoming more positive with respect t o the ortho-chloranil layer. Kinetic studies demonstrate that, upon illumination, a single process (time constant = 40 seconds) results in the increase in conductivity, the decrease in unpaired spins, and the increase in polarization. The results are consistent with the following scheme. An electron transfer from phthalocyanine to ortho-chloranil occurs in the dark at room temperature, producing holes in the phthalocyanine layer and ortho-chloranil negative ion radicals (high conductivity, ESR signal). Illumination results in the transfer of an electron from an excited phthalocyanine molecule to the ortho-chloranil negative ion, producing further phthalocyanine holes and ortho-chloranil double-negative ion (increase in conductivity, increase in polarization, decrease in ESR signal). By equating spin concentration with charge - carrier concentration (phthalocyanine holes) it is possible to calculate a …
Date:
July 29, 1959
Creator:
Kearns, David R.; Tollin, Gordon & Calvin, Melvin
Object Type:
Report
System:
The UNT Digital Library
FRACTIONATION OF THE INSOLUBLE MATERIAL OF CHLORELLA CELLS
None
Date:
November 1, 1959
Creator:
Stange, Luis; Moses, V. & Calvin, M.
Object Type:
Article
System:
The UNT Digital Library
CARBOXYLATIONS AND DECARBOXYLATIONS
A brief survey of decarboxylation reactions and carboxylation reactions that are known or presumed in biological systems will be presented. While a considerable number of amino acid decarboxylations are known, their mechanisms will not be included in the present discussion but will be reserved for a later paper in the symposium. The remaining decarboxylation reactions may be subdivided into oxidative and nonoxidative decarboxylations. In most cases, these reactions are practically irreversible except when coupled with suitable energy-yielding systems. The carboxylation reactions which are useful in the formation of carbon-carbon bonds in biological systems seem to fall into two or three groups: those which exhibit an apparent ATP requirement, and those which exhibit a reduced pyridine nucleotide requirement, and those which exhibit no apparent ATP requirement. Of the first group at least four cases, and possibly six or seven, are known, and one interpretation of them involves the preliminary formation of 'active' carbon dioxide, generally in the form of a carbonic acid-phosphoric acid anhydride. Those exhibiting no apparent ATP requirement seem to be susceptible to classifications as enol carboxylations in which the energy level of the substrate compound is high, rather than that of the carbon dioxide. There appear to be …
Date:
April 21, 1959
Creator:
Calvin, Melvin & Pon, Ning G.
Object Type:
Report
System:
The UNT Digital Library
The Devonian Elementary School Library: An Experiment in Quarters and Organization
This silent film, which includes intertitles, documents the activities of librarians, educators, and students using the library at Devonian Elementary School in Andrews, Texas.
Date:
1959
Creator:
The Andrews Public Schools
Object Type:
Video
System:
The UNT Digital Library
11th Annual Texas Crafts Exhibition [Exhibition Photographs]
Photographs of the exhibition "11th Annual Texas Crafts Exhibition," November 22-December 16, 1959, held at the Dallas Museum of Fine Arts. Photographs documenting this exhibition include seven gallery installation views.
Date:
1959
Creator:
Dallas Museum of Fine Arts
Object Type:
Collection
System:
The Portal to Texas History
Mexican Art: Pre-Columbian to Modern Times [Exhibition Photographs]
Photographs of the exhibition "Mexican Art: Pre-Columbian to Modern Times," April 19-June 14, 1959, held at the Dallas Museum of Fine Arts. Photographs documenting this exhibition include four gallery installation views.
Date:
1959
Creator:
Dallas Museum of Fine Arts
Object Type:
Collection
System:
The Portal to Texas History
Pre-Columbian Art from South America [Exhibition Photographs]
Photographs of the exhibition "Pre-Columbian Art from South America," October 10-November 29, 1959, held at the Dallas Museum of Fine Arts. Photographs documenting this exhibition include sixteen gallery installation views.
Date:
1959
Creator:
Dallas Museum of Fine Arts
Object Type:
Collection
System:
The Portal to Texas History
The Bellaire Texan (Bellaire, Tex.), Vol. 6, No. 13, Ed. 1 Wednesday, May 13, 1959
Weekly newspaper from Bellaire, Texas that includes local, state, and national news along with advertising.
Date:
May 13, 1959
Creator:
Norton, Mary
Object Type:
Newspaper
System:
The Portal to Texas History
The Bellaire Texan (Bellaire, Tex.), Vol. 6, No. 20, Ed. 1 Wednesday, July 8, 1959
Weekly newspaper from Bellaire, Texas that includes local, state, and national news along with advertising.
Date:
July 8, 1959
Creator:
Norton, Mary
Object Type:
Newspaper
System:
The Portal to Texas History
The Bellaire Texan (Bellaire, Tex.), Vol. 6, No. 2, Ed. 1 Wednesday, February 25, 1959
Weekly newspaper from Bellaire, Texas that includes local, state, and national news along with advertising.
Date:
February 25, 1959
Creator:
Norton, Mary
Object Type:
Newspaper
System:
The Portal to Texas History
The Bellaire Texan (Bellaire, Tex.), Vol. 6, No. 28, Ed. 1 Wednesday, September 2, 1959
Weekly newspaper from Bellaire, Texas that includes local, state, and national news along with advertising.
Date:
September 2, 1959
Creator:
Norton, Mary
Object Type:
Newspaper
System:
The Portal to Texas History
The Bellaire Texan (Bellaire, Tex.), Vol. 6, No. 6, Ed. 1 Wednesday, March 25, 1959
Weekly newspaper from Bellaire, Texas that includes local, state, and national news along with advertising.
Date:
March 25, 1959
Creator:
Norton, Mary
Object Type:
Newspaper
System:
The Portal to Texas History
The Bellaire Texan (Bellaire, Tex.), Vol. 6, No. 31, Ed. 1 Wednesday, September 23, 1959
Weekly newspaper from Bellaire, Texas that includes local, state, and national news along with advertising.
Date:
September 23, 1959
Creator:
Norton, Mary
Object Type:
Newspaper
System:
The Portal to Texas History
The Bellaire Texan (Bellaire, Tex.), Vol. 6, No. 33, Ed. 1 Wednesday, October 7, 1959
Weekly newspaper from Bellaire, Texas that includes local, state, and national news along with advertising.
Date:
October 7, 1959
Creator:
Norton, Mary
Object Type:
Newspaper
System:
The Portal to Texas History
The Bellaire Texan (Bellaire, Tex.), Vol. 6, No. 15, Ed. 1 Wednesday, May 27, 1959
Weekly newspaper from Bellaire, Texas that includes local, state, and national news along with advertising.
Date:
May 27, 1959
Creator:
Norton, Mary
Object Type:
Newspaper
System:
The Portal to Texas History
The Bellaire Texan (Bellaire, Tex.), Vol. 6, No. 34, Ed. 1 Wednesday, October 14, 1959
Weekly newspaper from Bellaire, Texas that includes local, state, and national news along with advertising.
Date:
October 14, 1959
Creator:
Norton, Mary
Object Type:
Newspaper
System:
The Portal to Texas History