Infrared-Microwave Double Resonance Probing of the Population-Depopulation of Rotational States in the NO₂ and the SO₂ Molecules (open access)

Infrared-Microwave Double Resonance Probing of the Population-Depopulation of Rotational States in the NO₂ and the SO₂ Molecules

A 10.6 ym C02 laser operating a power range S P 200 watts was used to pump some select vibrational transitions in the NO2 molecule while monitoring the rotational transitions (91/9—'100/10), (232f 22 ~~"*242,23> ' (402,38 "393,37) in the (0, 0, 0) vibrational level and the (8q,8—*"^1,7) rotational transition in the (0, 1, 0) vibrational level. These rotational transitions were monitored by microwave probing to determine how the population of states in the rotational manifolds were being altered by the laser. Coincidences between some components of the V3-V2 band of N02 and the C02 infrared laser lines in the 10 um region appeared to be responsible for the strong interaction between the continuous laser beams and the molecular states.
Date: December 1982
Creator: Khoobehi, Bahram
System: The UNT Digital Library
Theoretical and Experimental Linewidth Parameters in the Rotational Spectrum of Nitrogen Dioxide (open access)

Theoretical and Experimental Linewidth Parameters in the Rotational Spectrum of Nitrogen Dioxide

Contributions to the second order collision efficiency function S ⁽²⁾ (b), used in semiclassical perturbation approaches to pressure broadening of microwave and infrared spectra, due to several leading terms, dipole and quadrupole components, in the expansion of the intermolecular interaction energy are derived by method of irreducible spherical tensor operators for molecules of arbitrary symmetry. Results are given explicitly in terms of dipole and quadrupole line strengths. General expressions for dipole moment line strength in the asymmetric rotor basis as well as quadrupole moment line strength for the special case of molecules with two independent quadrupole moment components are derived. Computer programs for calculating linewidth parameters in the rotational spectrum of ¹⁴NO₂ based on Anderson and Murphy and Boggs theories are presented.
Date: December 1982
Creator: Moazzen-Ahmadi, Mohamad Nasser
System: The UNT Digital Library
The Existential Concepts of Time, Death and Choice in the Poetry of Philip Larkin (open access)

The Existential Concepts of Time, Death and Choice in the Poetry of Philip Larkin

This thesis examines time, death, and choice in Philip Larkin's poetry, arguing that his approach to these themes is not deterministic, but existential. The argument is based on the similarity between Larkin's views and those of three existential philosophers. Larkin's view of time, like Heidegger's, is that men live not in long stretches of time, but in processions of unconnected yet similar moments. A constant underlying sadness, like Kierkegaard's despair, makes each moment reminiscent of death. Like Sartre, Larkin finds meaning in his choices, and struggles to live authentically without expectation. Although Thomas Hardy influenced Larkin, given these similarities, Larkin's poetry cannot rightly be called deterministic. It is an attempt to preserve experience for its own sake.
Date: December 1982
Creator: Paule, Elizabeth Emily
System: The UNT Digital Library
Lecithin Treatment for Tardive Dyskinesia: A Clinical Evaluation (open access)

Lecithin Treatment for Tardive Dyskinesia: A Clinical Evaluation

Tardive dyskinesia is an insidious and debilitating extrapyramidal side effect of neuroleptic drug treatment. Recent research has suggested that lecithin has been effective in treating tardive dyskinesia. Lecithin's effects were evaluated under double-blind placebo controlled conditions. Treatment conditions included a placebo control group, a lecithin treatment group, and a no-treatment control group. Subjects in the lecithin group received 60 gms/day of lecithin (33 gms of phosphatidylcholine) . Subjects in the placebo group received a similar mixture which contained no lecithin. Subjects received mixtures for 9-11 days. Treatment effectiveness was determined by subjective, objective, and global evaluations. All subjects were evaluated 3 to 4 days prior to treatment and following 9 to 11 days of treatment.
Date: December 1982
Creator: Price, Lynn Ann Aikin
System: The UNT Digital Library
The Characteristics and Skills Needed by Vocational Counselors for Effective Functioning on the Vocational Admissions, Review and Dismissal Committee as Perceived by Vocational Counselor-Teacher Educators (open access)

The Characteristics and Skills Needed by Vocational Counselors for Effective Functioning on the Vocational Admissions, Review and Dismissal Committee as Perceived by Vocational Counselor-Teacher Educators

The purpose of this study was to determine the characteristics and skills needed by the vocational counselor for effective functioning on the Vocational Admissions, Review, and Dismissal Committee as perceived by vocational counselor-teacher educators.
Date: December 1982
Creator: Watkins, William Jack
System: The UNT Digital Library
M-Shell X-Ray Production of Gold, Lead, Bismuth, Uranium for Incident Hydrogen, Helium and Fluorine Ions (open access)

M-Shell X-Ray Production of Gold, Lead, Bismuth, Uranium for Incident Hydrogen, Helium and Fluorine Ions

Incident ¹H⁺ and ⁴He⁺ ions at 0.3-2.6 MeV and ¹⁹F^q⁺ ions at 25, 27 and 35 MeV were used to study the M-shell x-ray production cross sections of Au, Pb, Bi and U. For the incident fluorine ions, projectile charge state dependence of the cross sections were extracted from measurements made with varying target thicknesses ( ~1 to ~300 μg/cm²). The efficiency of the Si(Li) detector was determined by measuring the K-shell x-ray production of various low Z elements and comparing these values to the prediction of the CPSS theory. The experimental results are compared to the prediction of first Born approximation for direct ionization to the continuum and to the OBK of Nikolaev for the electron capture to the K-, L-, M-...shells of the incident ion. Comparison is also made with the ECPSSR theory that accounts for the energy loss, Coulomb deflection, and relativistic effects in the perturbed stationary state theory.
Date: December 1982
Creator: Mehta, Rahul
System: The UNT Digital Library