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The Independent: O. Henry and the Patriot
"Mr. Steger [O. Henry's] literary executor, made a trip to Texas not long ago in search of the early work of O. Henry and some of the material he gathered is presented here."
Date:
September 5, 1912
Creator:
Steger, Harry Peyton, 1883-1913
System:
The Portal to Texas History
About New York with O. Henry
Article excerpted from a literature magazine providing a description of the places in New York that O. Henry used as settings for many of his short stories. The article is illustrated with photographs.
Date:
September 1913
Creator:
Maurice, Arthur Bartlett, 1873-1946
System:
The Portal to Texas History
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
HELIUM THREE
A review is given of the present state of knowledge concerning the condensed phases of He{sup 3}. Attention is confined to the pure substance, and emphasis is placed upon the theoretical understanding of the material.
Date:
September 11, 1962
Creator:
Sessler, Andrew M.
System:
The UNT Digital Library
Electrical and Magnetic Properties of Holmium Single Crystals
Magnetic moment measurements are made on holmium single crystals (hcp) from 1.3 to 300 deg K in magnetic fields from 250 to 18,000 Oe, with the field applied along the c axis, the a axis, and a (1010) direction. The STA1010! direction is the direction of easy magnetization with an extrapolated effective moment per atom at saturation of 10.34 Bohr magnetons. Basal plane measurements show antiferromagnetism below the Neel temperature of 132 deg K with basal plane anisotropy occurring below 80 deg K. Below the Neel point, an anomalous type of transition to ferromagnetic behavior upon application of sufficient field is observed. Magnetization curves for the c axis are linear down to 60 deg K, while measurements below 20 deg K show an initial magnetization of approximately 1.7 Bohr magnetons followed by nearly linear magnetization curves. Electrical resistivity measurements are made from 4.2 to 300 deg K. For the a axis, the resistivity changes slope slightly at 20 deg K. A larger change in slope occurs at the Neel temperature of 132 deg K. For the c axis, the resistivity changes slope slightly at 20 deg K, reaches a peak at 120 deg K, goes through a minimum at 132 …
Date:
September 15, 1962
Creator:
Strandburg, D. L.; Legvold, S. & Spedding, F. H.
System:
The UNT Digital Library
Exact Form for Scattering Amplitude in Regge Pole Theory
The exact form for the contribution of a single Regge pole is given both for positive and negative angular momentum without making the usual approximations. This exact form involves Legendre functions of the first and second kind with nonintegral index and argument greater than one. These functions are plotted. A one-parameter fit is made to the high-energy p-p elastic scattering data that give good agreement with experiment. (auth)
Date:
September 1, 1963
Creator:
Read, A. L.; Orear, J. & Bethe, H. A.
System:
The UNT Digital Library
Nuclear Performance of Large Pressurized Water Reactors Controlled by Soluble Poison
The performance of large pressurized-water reactors operated with a uniformly distributed control technique such as a soluble neutron poison (boric acid) dissolved in the moderator is investigated. The cycling studies are performed in one dimension. (C.E.S.)
Date:
September 1, 1963
Creator:
French, R. J. & Miller, D. L.
System:
The UNT Digital Library
Reactivity Calculations and Measurements at the SRE
None
Date:
September 1, 1963
Creator:
Keaten, R W & Pearson, E N
System:
The UNT Digital Library
Humphrey: an excellent choice
Photocopy of an editorial from the Saturday Evening Post stating that Hubert Humphrey is an excellent choice for the post of Vice-President to Lyndon Johnson.
Date:
September 26, 1964
Creator:
Saturday Evening Post
System:
The Portal to Texas History
LONGITUDINAL RESISTIVE INSTABILITIES OF INTENSE COASTING BEAMS IN PARTICLE ACCELERATORS
The effect of finite resistance in the vacuum-tank walls on the longitudinal stability of an intense beam of particles in an accelerator is investigated theoretically. We show that even if the particle frequency is an increasing function of particle energy, the wall resistance can render the beam unstable against longitudinal bunching. In the absence of frequency spread in the unperturbed beam, the instability occurs with a growth rate that is proportional to (N/{sigma}){sup 1/2}, where N is the number of particles in the beam and {sigma} is the conductivity of the surface material. By means of the Vlasov equation a criterion for beam stability is obtained. In the limit of highly conducting walls the criterion involves the frequency spread in the unperturbed beam, the number of particles N, the beam energy, geometrical properties of the accelerator, but not the conductivity {sigma}. A numerical example presented indicates that certain observations of beam behavior in the MURA 40-Mev-electron accelerator may be related to the phenomenon we investigated.
Date:
September 29, 1964
Creator:
Neil, V. Kelvin & Sessler, Andrew M.
System:
The UNT Digital Library
CHEMICAL TRAPPING OF A PRIMARY QUANTUM CONVERSION PRODUCT INPHOTOSYNTHESIS
The capacity of photosynthetic organisms to exhibit photo-induced electron paramagnetic resonance (EPR) signals has been known for over ten years. Subcellular units of photosynthetic materials, the quantasomes and the chromatophores, are capable of Hill Reaction activity, and also of exhibiting the light-induced EPR signals. This, coupled with the rapid rise and decay kinetics of these signals, suggests but does not prove that the unpaired electrons are involved in the initial electron transfer processes in the primary quantum conversion act. The identification of the species giving rise to these signals and their connection with processes of primary quantum conversion remains elusive even though such varied approaches as mutant strains, special growth conditions, extreme physical conditions, special metabolic inhibitors, etc. have been applied to this problem. In this communication the authors wish to report another method being used in an attempt to identify the species responsible for the unpaired electrons. Hoffman prepared a water soluble, stable free radical, di-tertiary-butylnitroxide (hereafter called DTBN), which is a 'vigorous free radical scavenger'. It shows a sharp, well resolved, symmetrical, three-line paramagnetic resonance spectrum that is relatively insensitive to the molecular environment. The chemistry of di-tertiary butylnitroxide has not been studied extensively. However, four distinct types …
Date:
September 9, 1966
Creator:
Corker, Gerald A.; Klein, Melvin P. & Calvin, Melvin.
System:
The UNT Digital Library
EXPERIMENTAL PROBLEMS IN THE USE OF A POLARIZED PROTONTARGET
I have understood my assignment as a review of some of the work done in high-energy physics with polarized proton targets and a description of some of the special problems connected with polarized targets. Most of my report will be based on the polarized target that I am most familiar with--that constructed by Jeffries, Schultz, Shapiro, and myself. This target is no longer unique; in fact, it is now somewhat old-fashioned in some respects. Other polarized proton targets are in operation at CERN, Saclay, the Rutherford Laboratory, Argonne National Laboratory, the Soviet Union, and there is a target newly in operation at the Brookhaven Laboratory. Other targets are in operation or are in the process of design or construction at a number of other places. Unfortunately, none of these targets consists of pure hydrogen. The target material most often used is made of lanthanum magnesium nitrate, LMN. About a quarter of the weight of this crystal is water; it is the protons within the water molecules that are polarized. Hydrogen constitutes only 3 percent of the weight of the crystal. This means that scattering processes on hydrogen must be distinguished kinematically from scattering processes involving the heavy elements of the …
Date:
September 9, 1966
Creator:
Chamberlain, Owen
System:
The UNT Digital Library
The first weighing of plutonium
The following text, transcribed from the remarks of those scientists who gathered at the University of Chicago on September 10, 1967, to celebrate the 25th anniversary of the first weighing of plutonium, tells an important part of the story of this fascinating new element that is destined to play an increasingly significant role in the future of man.
Date:
September 10, 1967
Creator:
unknown
System:
The UNT Digital Library
THE PHOTOCHEMISTRY OF PYRIDINE N-OXIDE
The authors wish to report their results on the photolysis of pyridine N-oxide in alcoholic solution. Both methanol and ethanol solutions of pyridine N-oxide were irradiated. The reaction mixture was analyzed by gas-liquid chromatography (GLC) using a 2.5% FFAP on Chrom G column and a Porapak Q column. In order to collect the products, the volume of the photolysis solution was reduced in vacuo and the resulting mixture was separated by preparative GLC.
Date:
September 14, 1967
Creator:
Alkaitis, Algis & Calvin, Melvin.
System:
The UNT Digital Library
ORGANIC GEOCHEMICAL STUDIES. I. MOLECULAR CRITERIA FOR HYDROCARBONGENESIS
In recent years the search for life-forms at the earliest periods of geological time has been continued not only at the morphological level but also at the molecular level. This has been possible as a result of the increase in the biochemical knowledge and with the advent of analytical techniques that are capable of describing the intimate molecular architecture of individual molecules in acute detail. The fundamental premises upon which this organic geochemical approach rest are the following: that certain molecules, possessing a characteristic structural skeleton, show a reasonable stability to degradation over long periods of geological time; that their structural specificity can be understood in terms of known biosynthetic sequences; and that their formation by any non-biological means is of negligible probability. In this manuscript it is proposed to critically re-examine these premises and to establish criteria whereby one can differentiate molecules derived from biological systems from those that have their origin in non-biological processes. The importance of establishing such criteria lies in the significance these criteria have in determining whether life exists, or has existed, on other planets. Within the very near future it may be possible to provide an initial answer to this question when the first …
Date:
September 22, 1967
Creator:
McCarthy, Eugene D. & Calvin, Kevin
System:
The UNT Digital Library
The perils of Spiro
Article from The Washington Post on Spiro T. Agnew's Vice-Presidential campaign.
Date:
September 25, 1968
Creator:
Washington Post Company
System:
The Portal to Texas History
Spiro wades in : governor displays rare knack with ethnic epithets
Article by Art Buchwald on Spiro T. Agnew using derogatory names for ethnic groups.
Date:
September 30, 1968
Creator:
Buchwald, Art
System:
The Portal to Texas History
An Experimental Test of Time-Reversal Invariance inthePhotodisintegration of the Deuteron
We present data from a measurement of angular distributions of the reaction n + p {yields} {gamma} + d (1a) for neutrons with energies between 300 and 700 MeV. These data are compared with recent data for the inverse reaction {gamma} + d {yields} n + p (1b). Time-reversal invariance implies that apart from a normalization factor the angular distributions should be the same. We find an intriguing discrepancy in the vicinity of the well-known peak in the total cross section of reaction (1b) and apparent agreement elsewhere. The discrepancy occurs in the shape of the angular distributions and does not depend on the normalization of our data or those of the inverse reaction experiments.
Date:
September 1, 1969
Creator:
Schrock, B. L.; Detoeuf, J. -F.; Haddock, R. P.; Helland, J. A.; Longo, M. J.; Young, K. K. et al.
System:
The UNT Digital Library
Late Pioneer Gets Citation
Newspaper article from the Morning Edition of the Abilene Reporter News about a resolution of appreciation made in memory of Judge K. K. Legett by the Board of Trustees of Hardin-Simmons University.
Date:
September 2, 1970
Creator:
unknown
System:
The Portal to Texas History
Flight Safety Contingency Analysis Report, S103-CP090290-F1. Volume III. Nuclear Subsystems Contingency Analysis
None
Date:
September 1, 1971
Creator:
unknown
System:
The UNT Digital Library
Tornado:The voice of the people in disaster and after
This report provides information about the tornado damages , history of Lubbock and how the community responded to the Tornado.
Date:
September 1971
Creator:
Texas Tech University
System:
The Portal to Texas History
Summary of the Distribution of Plutonium in the Tissues of 12 Occupationally Exposed Workers
None
Date:
September 17, 1971
Creator:
Lagerquist, C. R.; Hammond, S. E.; Bokowski, D. L. & Hylton, D. B.
System:
The UNT Digital Library
Improved Staining of Extracellular Polymer for Electron Microscopy: Examination of Azotobacter, Zoogloea, Leuconostoc, and Bacillus
Article on improved staining of extracellular polymer for electron microscopy and an examination of Azotobacter, Zoogloea, Leuconostoc, and Bacillus.
Date:
September 1972
Creator:
Cagle, Gerald D.; Pfister, Robert M. & Vela, G. Roland, 1927-
System:
The UNT Digital Library
MULTIPERIPHERAL MODEL WITH PSEUDOSCALAR AND VECTOR MESON EXCHANGE
Previous work on generalizations of the ABFST multiperipheral model is extended to allow for vector meson exchange. The intercept of the Pomeranchon pole, the magnitude of asymptotic total cross sections and off-shell corrections to them are calculated.
Date:
September 1, 1972
Creator:
Avalos, Daniel R. & Sorensen, Cristian.
System:
The UNT Digital Library