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Geochemical tracers of Arctic river waters

Creator:: Guay, Christopher K. H.
Resource Type:: Dissertation
Full Text:: BY IN SITU FIBER-OPTIC SPECTROMETRY Christopher K. H. Guay', Gary P. Klinkhammer', Kelly Kemson

Barium as a tracer of Arctic halocline and river waters

Creator:: Guay, Christopher K. H.
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Christopher K. H. Guay for the

Wind-driven transport pathways for Eurasian Arctic river discharge

Creator:: Guay, Christopher K. H., Falkner, Kelly, Muench, Robin D., Mensch, Manfred, Frank, Markus, and Bayer, Reinhold
Abstract:: Distributions of temperature, salinity, and barium in near-surface waters (depth ≤ 50 m) of the Laptev Sea and adjacent areas of the Arctic Ocean are presented for the summers of 1993, 1995, and 1996. The tracer data indicate that while fluvial discharge was largely confined to the shelf region of...
Resource Type:: Article
Full Text:: -driven transport pathways for Eurasian Arctic river discharge Christopher K. H. Guay • and Kelly

High‐resolution measurements of dissolved organic carbon in the Arctic Ocean by in situ fiber‐optic spectrometry

Creator:: Guay, Christopher K., Klinkhammer, Gary P., Falkner, Kelly, Benner, Ronald, Coble, Paula G., Whiteledge, Terry E., Black, Brenda, Bussell, F. Joseph, and Wagner, Tim A.
Abstract:: Here we report results from an extensive survey of dissolved organic carbon (DOC) in the Arctic Ocean, which was achieved by means of a high-resolution, in situ UV fluorometer deployed on a nuclear submarine. Based on a strong linear correlation observed between fluorescence (320 nm excitation, 420 nm emission) and...
Resource Type:: Article
Full Text:: in situ of dissolved organic carbon fiber-optic spectrometry Christopher K. Guay, 1 Gary P

Total Synthesis of Cephalotaxus Alkaloids and Synthetic Studies toward Bazzanin K

Creator:: Ju, Xuan
Abstract:: Dearomatization reactions exist broadly in biosynthesis and chemical synthesis. The highly functionalized atoms of arenes can be masked by it aromaticity, and upon dearomatization, those reactive atoms can be readily applied to bond formation and further manipulation. The total synthesis of (–)-cephalotaxine and (–)- homoharringtonine is described via an oxidative...
Resource Type:: Dissertation
Full Text:: OMe KOtBu, NH3 O O N O OMe H DIBALH HN CO2Me CO2Me 1) Na/K alloy, TMSCl, PhH 2) Br2, DCM

Regulation of ribonucleotide reductase analyzed by simultaneous measurement of the four enzyme activities

Creator:: Hendricks, Stephen P.
Abstract:: The first committed step in DNA biosynthesis occurs by direct reduction of ribonucleotides. This reduction is catalyzed by ribonucleotide reductase (RNR), an enzyme which uses a unique radical mechanism to facilitate the transformation. All four DNA precursors are synthesized by a single enzyme. Therefore, an intricate pattern of regulation has...
Resource Type:: Dissertation
Full Text:: Activities. Abstract approved: Christopher K. Mathews The first committed step in DNA biosynthesis

Protein-protein interactions in the bacteriophage T4 dNTP synthetase complex

Creator:: Shen, Rongkun
Abstract:: The enzymes of dNTP synthesis in T4 infection associate to form a multienzyme complex, the T4 dNTP synthetase complex, facilitating the flow of metabolites en route to dNTPs, and their subsequent flow into DNA. Study of protein-protein interactions helps one to understand how the enzymes in the complex are organized...
Resource Type:: Dissertation
Full Text:: Synthetase Complex Abstract approved: Christopher K. Mathews The

Cytotoxic responses of Biomphalaria glabrata hemocytes towards the parasite Schistosoma mansoni : the role of reactive oxygen and nitrogen species

Creator:: Hahn, Ulrike K.
Resource Type:: Dissertation
Full Text:: ., Jeong, K. H., and Beckstead, J. H. 1985. Enzyme histochemical comparison of Biomphalaria glabrata

Total Synthesis of Goniomitine : Development of Aminal and α-Amino Radicals in the Synthesis of Nitrogen-Rich Natural Products

Creator:: Vellucci, Jessica K.
Abstract:: Aminal radical intermediates were generated by the method of radical translocation and reacted in C-C bond forming reactions with electronically deficient alkenes (Schiedler et al. Org. Lett. 2012, 14, 6092). Aminal radical intermediates can participate in inter- and intra-molecular reactions using both Bu3SnH and (TMS)₃SiH as hydride donors. Carbon–carbon bonds...
Resource Type:: Dissertation
Full Text:: .; Chakraborty, T. K.; Piscopio, A. D.; Minowa, N.; Bertinato, P. J. Am. Chem. Soc. 1993, 115, 4419. (b) Ge, H

DNA precu[r]sor compartmentation in mammalian cells : metabolic and anti-metabolic studies of nuclear and mitochondrial DNA synthesis

Creator:: Bestwick, Richard Keith
Abstract:: This dissertation describes an investigation of DNA precursor supply for mitochondrial and nuclear DNA synthesis in HeLa cells and Mouse L-cells. HeLa cells were used for the quantitation of cellular and mitochondrial deoxyribonucleoside triphosphate (dNTP) and ribonucleoside triphosphate (rNTP) pools and of changes in pools in response to treatment with...
Resource Type:: Dissertation
Full Text:: : Christopher K. Mathews This dissertation describes an investigation of DNA precursor supply for

ScholarsArchive@OSU

Geochemical tracers of Arctic river waters

Barium as a tracer of Arctic halocline and river waters

Wind-driven transport pathways for Eurasian Arctic river discharge

High‐resolution measurements of dissolved organic carbon in the Arctic Ocean by in situ fiber‐optic spectrometry

Total Synthesis of Cephalotaxus Alkaloids and Synthetic Studies toward Bazzanin K

Regulation of ribonucleotide reductase analyzed by simultaneous measurement of the four enzyme activities

Protein-protein interactions in the bacteriophage T4 dNTP synthetase complex

Cytotoxic responses of Biomphalaria glabrata hemocytes towards the parasite Schistosoma mansoni : the role of reactive oxygen and nitrogen species

Total Synthesis of Goniomitine : Development of Aminal and α-Amino Radicals in the Synthesis of Nitrogen-Rich Natural Products

DNA precu[r]sor compartmentation in mammalian cells : metabolic and anti-metabolic studies of nuclear and mitochondrial DNA synthesis

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