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Molecular and evolutionary characterization of the transposable element Uhu from Hawaiian DrosophilaBrezinsky, Laura January 1990 (has links)
Typescript. / Thesis (Ph. D.)--University of Hawaii at Manoa, 1990. / Includes bibliographical references (leaves 100-109) / Microfiche. / viii, 109 leaves, bound ill. 29 cm
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Application of many-body theory methods to atomic problems.Dinh, Thi Hanh, Physics, Faculty of Science, UNSW January 2009 (has links)
There is strong interest in atomic and nuclear physics to the study of superheavy elements by the search for the island of stability in the region Z=104 to Z=126. There are many experimental efforts and theoretical works devoted to these study in measuring the spectra and chemical properties. In this thesis, calculations of the spectra and the hyperfine structure of some superheavy elements have been performed in an attempt to enrich our knowledge about the elements and even may help in their detection. We perform the high-precision relativistic calculations to determine the spectra of the superheavy element Z=119 (eka-Fr) and the singly-ionized superheavy element Z=120+ (eka-Ra+). Dominating correlation corrections beyond relativistic Hartree-Fock are included to all orders in the residual electron interaction using the Feynman diagram technique and the correlation potential method. The Breit interaction and quantum electrodynamics radiative corrections are considered. Also, the volume isotope shift is determined. We present the relativistic calculations for the energy levels of the superheavy element Z=120. The relativistic Hartree-Fock and configuration interaction techniques are employed. The correlations between core and valence electrons are treated by means of the correlation potential method and many-body perturbation theory. We also try to address the absence of experimental data on the electron structure and energy spectrum of the Uub element (Z=112) by calculating its energy levels. The relativistic Hartree-Fock and configuration interaction methods are combined with the many-body perturbation theory to construct the many-electron wave function for valence electrons and to include core-valence correlations. The hyperfine structure constants of the lowest s and p1/2 states of superheavy elements Z=119 and Z= 120+ are calculated. Core polarization, dominating correlation, Breit and quantum electrodynamic effects are considered. The dependence of the hyperfine structure constants on nuclear radius is discussed. Measurements of the hyperfine structure combined with our calculations will allow one to study nuclear properties and distribution of magnetic moment inside nucleus. Finally, we discuss the possibility of measuring nuclear anapole moments in atomic Zeeman transitions and perform the necessary calculations. Advantages of using Zeeman transitions include variable transition frequencies and the possibility of enhancement of parity nonconservation effects.
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Trace elements in coal from Collinsville, Bowen Basin, Australia : in-ground mode of occurrence and behaviour during utilisation /Boyd, Robert John. January 2004 (has links)
Thesis (Ph.D.) - James Cook University, 2004. / Typescript (photocopy) Bibliography: leaves 355-380.
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A design strategy for group 15 supramolecular assemblies /Vickaryous, William Jake. January 2008 (has links)
Thesis (Ph. D.)--University of Oregon, 2008. / Typescript. Includes vita and abstract. Includes bibliographical references (leaves 69-81). Also available online in ProQuest, free to University of Oregon users.
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Trace metal cycling in the central equatorial Pacific : results from the U.S. JGOFS EqPac survey cruises /Chapin, Thomas P., January 1997 (has links)
Thesis (Ph. D.)--University of Washington, 1997. / Vita. Includes bibliographical references (p. [200]-229).
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Trace metal cycling in the central equatorial Pacific results from the U.S. JGOFS EqPac survey cruises /Chapin, Thomas P., January 1997 (has links)
Thesis (Ph. D.)--University of Washington, 1997. / Includes bibliographical references (leaves [200]-229).
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1. Trace metal distributions and stable lead isotopic composition in surface waters along the United States-Mexican boundary in the northeast Pacific ; 2. Trace metal distributions in surface waters along the United States-Mexican boundary multivariate statistical analysis /Sañudo Wilhelmy, Sergio Adolfo. January 1989 (has links)
Thesis (M.S.)--University of California, Santa Cruz, 1989. / Typescript. Includes bibliographical references.
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Comparison of four trace element extractants by isotope dilution analysisVale, Rui Ramos do. January 1982 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1982. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 112-116).
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The chemistry of acetohydroxamic acid related to nuclear fuel reprocessing /Matteson, Brent Searle. January 1900 (has links)
Thesis (Ph. D.)--Oregon State University, 2011. / Printout. Includes bibliographical references (leaves 119-132). Also available on the World Wide Web.
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Evaluating the efficacy of dietary organic and inorganic trace minerals in reproducing female pigs on reproductive performance and body mineral compositionPeters, James C., January 2006 (has links)
Thesis (Ph. D.)--Ohio State University, 2006. / Title from first page of PDF file. Includes bibliographical references (p. 137-158)
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