Search Results - "Hedges, John"

Refine Results
  1. 1

    Characterization of a major refractory component of marine dissolved organic matter by Hertkorn, Norbert, Benner, Ronald, Frommberger, Moritz, Schmitt-Kopplin, Philippe, Witt, Matthias, Kaiser, Karl, Kettrup, Antonius, Hedges, John I.

    Published in Geochimica et cosmochimica acta (01-06-2006)
    “…Refractory carboxyl-rich alicyclic molecules (CRAM) are characterized in marine dissolved organic matter (DOM) using nuclear magnetic resonance spectroscopy…”
    Get full text
    Journal Article
  2. 2

    Young organic matter as a source of carbon dioxide outgassing from Amazonian rivers by Mayorga, Emilio, Aufdenkampe, Anthony K, Masiello, Caroline A, Krusche, Alex V, Hedges, John I, Quay, Paul D, Richey, Jeffrey E, Brown, Thomas A

    Published in Nature (28-07-2005)
    “…Rivers are generally supersaturated with respect to carbon dioxide, resulting in large gas evasion fluxes that can be a significant component of regional net…”
    Get full text
    Journal Article
  3. 3

    Photodegradation and photosensitization of mycosporine-like amino acids by Whitehead, Kenia, Hedges, John I.

    “…The photodegradation and photosensitization of several mycosporine-like amino acids (MAAs) were investigated. The photodegradation of the MAA, palythine, was…”
    Get full text
    Journal Article
  4. 4
  5. 5

    Reburial of fossil organic carbon in marine sediments by Dickens, Angela F, Gélinas, Yves, Masiello, Caroline A, Wakeham, Stuart, Hedges, John I

    Published in Nature (22-01-2004)
    “…Marine sediments act as the ultimate sink for organic carbon, sequestering otherwise rapidly cycling carbon for geologic timescales. Sedimentary organic carbon…”
    Get full text
    Journal Article
  6. 6

    Dissolved organic carbon in ridge-axis and ridge-flank hydrothermal systems by Lang, Susan Q., Butterfield, David A., Lilley, Marvin D., Paul Johnson, H., Hedges, John I.

    Published in Geochimica et cosmochimica acta (01-08-2006)
    “…The circulation of hydrothermal fluid through the upper oceanic crustal reservoir has a large impact on the chemistry of seawater, yet the impact on dissolved…”
    Get full text
    Journal Article
  7. 7

    Defining the Order in Which Nmd3p and Rpl10p Load onto Nascent 60S Ribosomal Subunits by West, Matthew, Hedges, John B., Chen, Anthony, Johnson, Arlen W.

    Published in Molecular and Cellular Biology (01-05-2005)
    “…Article Usage Stats Services MCB Citing Articles Google Scholar PubMed Related Content Social Bookmarking CiteULike Delicious Digg Facebook Google+ Mendeley…”
    Get full text
    Journal Article
  8. 8
  9. 9

    Release of the export adapter, Nmd3p, from the 60S ribosomal subunit requires Rpl10p and the cytoplasmic GTPase Lsg1p by Hedges, J, West, M, Johnson, A.W

    Published in The EMBO journal (09-02-2005)
    “…In eukaryotes, nuclear export of the large (60S) ribosomal subunit requires the adapter protein Nmd3p to provide the nuclear export signal. Here, we show that…”
    Get full text
    Journal Article
  10. 10
  11. 11

    The Putative GTPases Nog1p and Lsg1p Are Required for 60S Ribosomal Subunit Biogenesis and Are Localized to the Nucleus and Cytoplasm, Respectively by Kallstrom, George, Hedges, John, Johnson, Arlen

    Published in Molecular and Cellular Biology (01-06-2003)
    “…Article Usage Stats Services MCB Citing Articles Google Scholar PubMed Related Content Social Bookmarking CiteULike Delicious Digg Facebook Google+ Mendeley…”
    Get full text
    Journal Article
  12. 12

    Composition and flux of particulate amino acids and chloropigments in equatorial Pacific seawater and sediments by Lee, Cindy, Wakeham, Stuart G., I. Hedges, John

    “…Compositions and fluxes of amino acids and major chloropigments were measured in the central equatorial Pacific Ocean as part of the US JGOFS EqPac program…”
    Get full text
    Journal Article
  13. 13

    An Improved Thermal Oxidation Method for the Quantification of Soot/Graphitic Black Carbon in Sediments and Soils by Gélinas, Yves, Prentice, Kenneth M, Baldock, Jeffrey A, Hedges, John I

    Published in Environmental science & technology (01-09-2001)
    “…Recent findings have confirmed the importance of black carbon (BC) in the global biogeochemical cycles of carbon and oxygen through its important contribution…”
    Get full text
    Journal Article
  14. 14

    Evidence for non-selective preservation of organic matter in sinking marine particles by Hedges, John I, Peterson, Michael, Lee, Cindy, Baldock, Jeffrey A, Gélinas, Yves, Wakeham, Stuart G

    Published in Nature (London) (15-02-2001)
    “…The sinking of particulate organic matter from ocean surface waters transports carbon to the ocean interior, where almost all is then recycled. The unrecycled…”
    Get full text
    Journal Article
  15. 15

    Organic matter in the Peruvian headwaters of the Amazon: Compositional evolution from the Andes to the lowland Amazon mainstem by Aufdenkampe, Anthony K., Mayorga, Emilio, Hedges, John I., Llerena, Carlos, Quay, Paul D., Gudeman, Jack, Krusche, Alex V., Richey, Jeffrey E.

    Published in Organic geochemistry (01-03-2007)
    “…We examined the compositions of dissolved, fine and coarse particulate organic matter fractions (DOM, FPOM and CPOM, respectively) from 18 river sites in Peru…”
    Get full text
    Journal Article Conference Proceeding
  16. 16

    Major Bacterial Contribution to Marine Dissolved Organic Nitrogen by McCarthy, Matthew D., Hedges, John I., Benner, Ronald

    “…Next to N$_2$ gas, the largest pool of reduced nitrogen in the ocean resides in the enormous reservoir of dissolved organic nitrogen (DON). The chemical…”
    Get full text
    Journal Article
  17. 17

    The role of biominerals in the sinking flux and preservation of amino acids in the Southern Ocean along 170°W by Ingalls, Anitra E, Lee, Cindy, Wakeham, Stuart G, Hedges, John I

    “…In a study of the transport and transformation of particulate amino acids in the Southern Ocean, we found that silicate and calcium carbonate biominerals play…”
    Get full text
    Journal Article
  18. 18

    Influence of oxygen exposure time on organic carbon preservation in continental margin sediments by Hartnett, Hilairy E, Keil, Richard G, Hedges, John I, Devol, Allan H

    Published in Nature (London) (05-02-1998)
    “…Today, over 90% of all organic carbon burial in the ocean occurs in continental margin sediments. This burial is intrinsically linked to the cycling of…”
    Get full text
    Journal Article
  19. 19

    Sorptive Fractionation of Dissolved Organic Nitrogen and Amino Acids onto Fine Sediments within the Amazon Basin by Aufdenkampe, Anthony K., Hedges, John I., Richey, Jeffery E., Krusche, Alex V., Llerena, Carlos A.

    Published in Limnology and oceanography (01-12-2001)
    “…A consistent observation of river waters in the Amazon Basin and elsewhere is that suspended fine particulate organic matter (FPOM) is compositionally distinct…”
    Get full text
    Journal Article
  20. 20

    Tannin diagenesis in mangrove leaves from a tropical estuary: a novel molecular approach by Hernes, Peter J, Benner, Ronald, Cowie, Gregory L, Goñi, Miguel A, Bergamaschi, Brian A, Hedges, John I

    Published in Geochimica et cosmochimica acta (01-09-2001)
    “…Molecular-level condensed tannin analyses were conducted on a series of mangrove (Rhizophora mangle) leaves at various stages of decomposition in a tropical…”
    Get full text
    Journal Article