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Studies on the biosynthesis of the streptolidine moiety of streptothricin F

Creator:: Wityak, John
Abstract:: The loss of all deuterium labels from previous feedings of [2-²H]-, [3,3-²H₂]-, and [2,3,3-²H₃]arginines had indicated the possible intermediacy of β-hydroxy- and β-ketoarginine (30 and 31, respectively) in the biosynthesis of the streptolidine portion of streptothricin F (la). In order to confirm or refute this evidence, D,L-[2,3,3,5,5-²H₅]- arginine (32) was...
Resource Type:: Dissertation
Full Text:: streptothricin F An Abstract of the Thesis of John Wityak for the degree of Doctor of Philosophy in Chemistry

A mechanism for filiform corrosion of aluminum

Creator:: Hoover, Steven Edward
Abstract:: A mechanism for filiform corrosion of aluminum is proposed based on experimental evidence and the known aqueous chemistry of the trivalent aluminum ion. Experimental methods utilized include autoradiographs with Cl³⁶; pH paper determination of the filiform head pH; activator concentration and activation period as they affect filiform growth. The pH...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF STEVEN EDWARD HOOVER for the

Syntheses of labeled putative intermediates in acivicin biosynthesis

Creator:: Jiang, Nan
Resource Type:: Masters Thesis
Full Text:: husband Xingjian and my parents Acknowledgments I am truly grateful to Professor Steven J. Gould, my

Studies of the biosynthesis of Sarubicin A

Creator:: Eisenberg, Rodney L.
Abstract:: Early studies on the biosynthesis of Sarubicin A, 1, had suggested the intermediacy of the novel aromatic amino acid 6-hydroxyanthranilic acid, 17. To investigate the biosynthetic steps beyond 17, [¹³C-¹⁵N carboxamide] 6-hydroxyanthranilamide, 27a, was synthesized, and fed to fermentations of Streptomyces helicus. Incorporation of 27a into 1 provided suggestive evidence...
Resource Type:: Dissertation
Full Text:: Privacy Dr. Steven \J.l Gould Early studies on the biosynthesis of Sarubicin A, 1, had suggested the

Advanced studies on the biosynthesis of the streptolidine moiety of streptothricin F

Creator:: Jackson, Michael D.
Resource Type:: Dissertation
Full Text:: Moiety of Streptothricin F AN ABSTRACT OF THE THESIS OF Michael D. Jackson for the degree of Doctor of

The chemical nature of the "lignin" of the bark of Douglas fir, Pseudotsuga menziesii (Mirb.) Franco

Creator:: Smith, James E. (James Edward)
Resource Type:: Dissertation
Full Text:: DOUGLAS FIR, · PSEUDOTSUGA MENZIESII (MffiB.) FRANCO by JAMES EDWARD ITH A THESIS submitted to

The nature of the chemical constituents of incense cedar, Libocedrus decurrens (Torr.) bark

Creator:: Smith, James E. (James Edward)
Abstract:: The purpose of this investigation was to determine the nature of the chemical constituents of incense cedar bark with the hope that such an endeavor would spur future research, development and use of a now neglected natural raw material. The bark from nine trees, which were separated into three age...
Resource Type:: Masters Thesis
Full Text:: , (Libocedrus Decurrens Torr.) Bark AN ABSTRACT OF THE THESIS OF James Edward Smith for the U.S. in

X-ray photoelectron spectroscopy of trifluoromethylbenzenes and chlorofluoromethanes

Creator:: Holmes, Steven Allen
Abstract:: The core-electron ionization potentials for mono- and di(trifluoromethyl)benzene, for chlorofluoromethanes and for chlorine have been measured in order to give information on the electron distribution in these molecules and to investigate differences between the inductive effect of fluorine and that of CF3. For trifluoromethylbenzene the measured ionization potentials in eV...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF STEVEN ALLEN HOLMES for the

The biological activity of certain derivatives of DDT

Creator:: Moore, Joseph Eli
Resource Type:: Dissertation
Full Text:: bf ?bfllte f,oarc AC!tNOWLEDGMENT The author wishes to express sincere thanks to Dr. Edward c

ESCA studies of a brass surface subjected to gas-jet enhanced sputtering

Creator:: Govier, R. D.
Abstract:: The inert gas ion bombardment of solid surfaces has found many uses in the field of analytical chemistry. In one method of spectrochemical analysis, inert gas ion bombardment in a glow discharge is used to produce an atomic vapor, representative of the sample bulk, which is analyzed using atomic absorption...
Resource Type:: Masters Thesis
Full Text:: Enhanced Sputtering Redacted for privacy Abstract approved: Edward H. Piepmeier The inert gas ion

ScholarsArchive@OSU

Studies on the biosynthesis of the streptolidine moiety of streptothricin F

A mechanism for filiform corrosion of aluminum

Syntheses of labeled putative intermediates in acivicin biosynthesis

Studies of the biosynthesis of Sarubicin A

Advanced studies on the biosynthesis of the streptolidine moiety of streptothricin F

The chemical nature of the "lignin" of the bark of Douglas fir, Pseudotsuga menziesii (Mirb.) Franco

The nature of the chemical constituents of incense cedar, Libocedrus decurrens (Torr.) bark

X-ray photoelectron spectroscopy of trifluoromethylbenzenes and chlorofluoromethanes

The biological activity of certain derivatives of DDT

ESCA studies of a brass surface subjected to gas-jet enhanced sputtering

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