Thesis. Exposure of rats to 700 rads whole-body /sup 60/Co gamma irradiation increased capillary permeabilily by 47% and increased lymph flow by 124% 48 hrs following irradiation, while exposure to 1000 rads caused an increase of capillary permeability of 98%, but did not change lymph flow from control values. The latter result may have been due to the relative dehydration and immobility of the 1000 rad group. Rats drinking large quantities of 5% dextrose + 0.7% NaCl solution did not increase lymph flow measurably above control levels. (CH)

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Thesis. The electrical characteristics of In/I/In and In/I/Pb superconducting tunnel junctions have been studied in detail. Since In does not readily form pinhole free oxide layers, a thin insulating dielectric was formed on freshly deposited In film by passing an electric discharge through an atmosphere of fluorocarbon gas. Junctions were then completed by depositing a thin counter electrode of In or Pb. The same process was used to prepare high resistance junctions with Au as the base electrode; these were not however, studied in detail. In/I/In and In/I/Pb junctions were produced with resistances in the range 0.01 ohms to 10/sup 10/ ohms at liquid helium temperatures. Low resistance junctions exhibited nonlinear electrical characteristics associated with good quality oxide'' superconducting junctions including (a) the dc Josephson effcct, (b) quasiparticle tunneling characteristics. (c) phonon structure and (d) inelastic tunneling phenomena. The magnitude of the Josephson current for In/I/In junctions agreed to within a few percent of the value predicted by strong coupling theory. Current voltage (I-V) and first and second derivative curves for In/I/In and In/I/Pb were compared with curves for Al/I/In and Pb/I/Pb junctions. Discrepancies between the characteristics can be, for the most part, explained on the basis of existing theories …

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Thesis. An apparatus has been constructed for studying the photodissociation of alkali halides to produce excited alkali metal atoms. The key component is a low pressure H/sub 2/ arc continuum uv source. Radiation from this source, modulated by a chopping wheel and analyzed by a monochromator, enters a cell containing the alkali halide vapor. In the appropriate wavelength range, photodissociation occurs to produce the alkali atom in an excited /sup 2/p state, the flourescence from which is detected by a photomultiplier-lock-in amplifier combination. (auth)

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~- Solid mixtures of isotopic helium separate into a /sup 3/ He-rich vefunction. This result may hopefully explain why the exchange energies in a mixture solid helium do not depend on /sup 3/He concentration strongly. (auth)

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Thesis. Absorption spectra of M centers in x-ray-colored Harshaw NaCl crystals were measured at several temperatures between 66 and 274 deg K using a Cary 14 PMR Spectrophotometer. Also measured in NaCl were the absorptions of M/ sup +/ and R/sup +/ centers at 80 deg K. Additively colored crystals were found to be unsuitable for studies of the absorptions of F-aggregate centers because of low concentrations of F centers and persisting colloid absorptions. In order to examine M bands free of overlapping absorptions of F centers, an M-band anisotropy was produced by exciting M centers with appropriately polarized light. Irradiation at 0 deg C with STA011! polarized M/sub 1/-band light resulted in both reorientation and annihilation of M centers while irradiation at 80 deg K with STA011! polarized 405 nm light resulted only in reorientation yielding a much larger anisotropy than produced at 0 deg C. Results are presented and discussed. (JRD)

The purpose of this study is to provide a practical English translation of Vincenzo Galilei's significant treatise on ancient and modern music (1581). In spite of the important place this work holds in the history of music, it has never before been made available in its entirety in any language other than the original Italian. This volume includes chapters 4-6, with an index and bibliography for the entire dissertation.

This paper defines the difference between "cosmopolitans" and "locals" in Denton, Texas, as they relate to the aged black and white communities.

The purpose of this study has been to analyze the rhetoric of Gloria Steinem in order to determine how she uses identification in her attempts to unify the members of the Women's Liberation Movement and to enlist the cooperation of others outside the movement. The rhetorical theory and concepts of identification and consubstantiality developed by Kenneth Burke, literary and rhetorical critic, have been used in this study. The representative examples of Steinem's rhetoric which have been analyzed include a speech made at Southern Methodist University on February 3, 1972, Steinem's feature article "Sisterhood," which was published in the 1972 Spring Preview Issue of Ms. magazine, and a speech made by Steinem at the opening session of the National Women's Political Caucus in Houston, Texas, on February 9, 1973. This study has revealed Gloria Steinem to be, during the years from 1967 until the present time, a vital spokeswoman for the Women's Liberation Movement. The means through which Steinem chose to combat the oppression of women was rhetoric. The three examples of Steinem's rhetoric analyzed in this study indicate that her basic premise concerns the long-standing subjugation and exploitation of women by the ruling class -- white males.

A computer model for simulation of the image contrast caused by Frank dislocation loops in field ion tips of fcc materials is presented. The model is based on the shell model for ion image simulation, whereas the displacement field of Frank loops is computed from the exact displacement equation for a closed dislocation loop in an isotropically elastic continuum. A method for taking surface effects into account by superposition of the displacement field of an image loop is introduced. The results indicate that Frank loops will cause image contrast while wholly beneath the surface of the tip, and that vacancy and interstitial loops will cause qualitatively different contrast. The effect of surface relaxation, while quantitatively substantial, does not qualitatively alter these results. Special emphasis is placed on small loops, with respect to which existing contrast theory is inadequate. Some micrographs of ion bombarded iridium tips are presented. These micrographs display contrast effects in excellent agreement with computer plots of interstitial loop contrast.

Wagner's second opera Das Liebesverbot, composed in 1835 and first performed in Magdeburg in 1836, could be termed Wagner's "Italian" opera. It represents Wagner's attitudes and feelings at the time of its composition. During this period in Wagner's life the composer had become particularly enchanted with Italian music and also with the Italian way of sensuous and carefree living. At the same time his disillusionment with German conservatism and pedantry also had an influence on the composition of this opera.

An exhibition catalog was chosen as the problem for this study, for it provided a practical means for an art historian to experience the problems associated with assembling material for an exhibition and catalog. These problems included researching background material, locating and coordinating a unified collection of artifacts, working with museum and research center staffs, plus the experience of photographing, editing, arranging lay-outs and writing in the format of an exhibition catalog.

The problem with which this comparative investigation is concerned is the application of a photographically derived image to glass. The image used originated from an ordinary thirty-five-millimeter color slide. This slide, through photographic darkroom manipulation, was translated into thirty individually different, black and white films of four-by-five-inch size. Selected films were then enlarged onto eleven-by-fourteen-inch, Kodalith film. These enlarged films were contact exposed to Ulano's Blue Poly-3, a presensitized silkscreen photofilm. This in turn was adhered to twelve double X silk which was tautly stretched in a wooden frame.

With the rising tensions and strains created by modern America, historians have sought diligently to discover the answers to industrial America's problems. One answer lay in American reform movements, and as the New Deal reforms came under fierce attack in the 1950's, liberal historians sought diligently to give to reform movements historical authenticity.

The discussion concentrates on Hector Berlioz's second opera, Les Troyens, which is Berlioz's final large work written between 1855-1858. The study demonstrates how the opera is unified through its drama and music. Les Troyens, a five-act tragic opera that is based on Virgil's Aeneid, is perhaps one of Berlioz's least known major works. The orchestral score had not been published in its entirety until 1969, when a two-volume edition of the opera was published by Bärenreiter in the New Edition of the Complete Works of Hector BerIioz. The first complete recording of Les Troyens, conducted by Colin Davis, was released by Philips records in 1972. These two sources have made an analysis of this important work of the nineteenth century possible. The study includes a survey of the dramatic influences of Virgil and his Aeneid, and the poetry of Shakespeare, in addition to the musical influences of Gluck's operas, the compositions of Lesueur, the symphonies of Beethoven, Weber's opera, Der Freischütz, and the French grand opera style, which all contributed to the opera.

This report describes the effects of methylglyoxal on several green and blue-green algae, its correlation with photosynthesis, and a possible explanation of its metabolic role in the algae.