Scientific Commons: J. Hefter

Variability of surface water characteristics and Heinrich‐like events in the Pleistocene midlatitude North Atlantic Ocean: Biomarker and XRD records from IODP Site U1313 (MIS 169) (2009)

New planktonic stable isotope and ice-rafted debris records from three core sites in the mid-latitude North Atlantic (IODP Site U1313, MD01-2446, MD03-2699) are combined with records of ODP Sites...

Analysis of Alkenone Unsaturation Indices with Fast Gas Chromatography/Time-of-Flight Mass Spectrometry (2008)

Hefter, J.

The Biomarker Inventory, Trace, and Source of Heinrich Events and Heinrich-type Layers (MIS 8-16) in the North Atlantic. (2008)

Hefter, J., Stein, R., Sinninghe Damsté, J. S.

The Biomarker Inventory, Trace, and Source of North Atlantic Heinrich Events. (2008)

Hefter, J., Stein, R., Sinninghe Damsté, J. S.

The biomarker inventory, trace, and source of North Atlantic iceberg invasions during the past 700.000 years. (2008)

Hefter, J., Stein, R., Sinninghe Damsté, J. S., Zhang, S.

Mobile Technology in Telecommunications Operations (2007)

J. Buford, J. Hefter, C. Matheus

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Carbon isotopic fractionation during a mesocosm bloom experiment dominated by Emiliania huxleyi: Effects of CO2 concentration and primary production (2007)

Benthien, A., Zondervan, I., Engel, A., Hefter, J., Terbrüggen, A., Riebesell, U.

The Biomarker Trace of Heinrich Events (IODP Exp. 303/306) (2007)

Hefter, J., Stein, R.

The Biomarker Inventory, Trace, and Source of Heinrich Events and Heinrich-type Layers (MIS 8-16) in the North Atlantic (2007)

Hefter, J., Stein, R., Sinninghe Damsté, J. S.

The biomarker inventory, trace and source rock implications from Heinrich events (IODP Expedition 303/306) (2007)

Hefter, J., Stein, R.

IODP Expedition 306: Quaternary and Late Neogene North Atlantic Paleoceanography (2006)

Stein, R., Grützner, J., Hefter, J., Kanamatsu, T., Alvarez-Zarikian, C.

IODP Expedition 306: Quaternary and Late Neogene North Atlantic Paleoceanography (2006)

Stein, R., Gruetzner, J., Hefter, J., Kanamatsu, T., Alvarez-Zarikian, C.

Biomarker Compositions as Source Indicators of Heinrich Layers in the Northern North Atlantic (IODP Exp. 303/306, Site 1305) (2006)

Hefter, J., Stein, R.

Late Neogene-Quaternary variability in North Atlantic paleoceanography: Preliminary results from IODP Expeditions 303 and 306 (2005)

Stein, R., Hefter, J., Channell, J. E. T., Kanamatsu, T., Sato, T., Malone, M., ...

Aliphatic lipids in recent sediments of the Fram Strait/Yermak Plateau (Arctic Ocean): Composition, sources and transport processes (2004)

Birgel, D., Stein, R., Hefter, J.

Paleoproductivity, paleotemperature and terrigenous input in the mid-Pleistocene southern South Atlantic: Implications from biomarker records (ODP-Site 1089) (2004)

Weller, P., Hefter, J., Stein, R.

Paleoproductivity and paleotemperature variability in the mid-Pleistocene southern South Atlantic: Implications from biomarker records (ODP-Site 1089) (2004)

Weller, P., Hefter, J., Stein, R., Kuhn, G.

Characterisation of the organic matter in surface sediments from the East Greenland continental margin (2004)

Kierdorf, C., Hefter, J., Stein, R.

Organic-carbon sources and variability in sediments from the southern Kara Sea (Arctic Ocean): organic-geochemical bulk parameter vs. biomarker records (2004)

Stein, R., Fahl, K., Hefter, J.

Alkenone carbon isotopes during a bloom of Emiliania huxleyi: Effects of CO2 concentration and production. (2004)

Benthien, A., Riebesell, U., Engel, A., Zondervan, I., Hefter, J., Delille, B., ...

Organic carbon and biomarkers in surface sediments: a comparison between the Fram Strait / Yermak Plateau and the East Greenland continental margin (2003)

Kierdorf, C., Birgel, D., Hefter, J., Stein, R.

Alkenone carbon isotopes during a bloom of Emiliania huxleyi: Effects of CO2 concentration and production. (2003)

Benthien, A., Zondervan, I., Riebesell, U., Engel, A., Hefter, J., Delille, B, ...

A chemical view of the most ancient metazoa - biomarker chemotaxonomy of hexactinellid sponges (2002)

Thiel, V., Blumenberg, M., Hefter, J., Pape, T., Pomponi, S., Reed, J., ...

Changes in the deposition of terrestrial organic matter on the Laptev Sea shelf during the Holocene: evidence from stable carbon isotopes (2000)

Mueller-Lupp, T., Bauch, H. A., Erlenkeuser, H., Hefter, J., Kassens, H., Thiede, J.

Marine Geology (2000)

Stein, R., Boucsein, B., Hefter, J., Kraus, M., Lau, N., Schoster, F., ...

Geochemistry of particulate organic matter in the water column and sediments (2000)

Hefter, J., Boucsein, B., Stein, R.

Ethylene and methane in the upper water column of the subtropical Atlantic (1999)

Seifert, R., Delling, N., Richnow, H. H., Kempe, S., Hefter, J., Michaelis, W.

Marine Geological Investigations. - In Jokat, W. (ed.), ARCTIC ´98: The Expedition ARK-XIV/1a of RV "Polarstern" in 1998. (1999)

Stein, R., Drachev, S., Fahl, K., Hefter, J., Kassens, H., Kokina, N., ...

Development of Ceramic Matrix Composites for Application in Ceramic Technology for Advanced Heat Engine Program. (1998)

Buljan, S. T., Baldoni, J. G., Huckabee, M. L., Neil, J., Hefter, J.

This report summarizes the results of a study that's objective was to examine and define the effect of sintering aids on microstructure and properties of Si3N4-SiC(w) composites and utilize the...

Carbon isotopic and molecular characterization of sedimentary organic matter in the Late Quaternary Arctic Ocean (1998)

Hefter, J., Fahl, K., Michaelis, W., Stein, R.

Organic pollutants associated with macromolecular soil organic matter: Mode of binding (1997)

Richnow, H. H., Seifert, R., Hefter, J., Link, M., Francke, W., Schaefer, G., ...

Biogeochemie löslicher und makromolekular gebundener organischer Verbindungen in Sedimenten, Erdölen und kontaminierten Böden (1997)

Hefter, J.

Molecular characterization of organic matter in methane producing areas of the Baltic Sea (1996)

Hefter, J., Hauke, V., Steiner, U., Michaelis, W.

Bildungsmechanismen von Bound Residues bei der biologischen Behandlung kontaminierter Böden (1996)

Richnow, H. H., Eschenbach, A., Hefter, J., Kästner, M., Mahro, B., Seifert, R., ...

n-Alkanoic compounds in sulphur-rich macromolecular substances: A detailed investigation of sulphur incorporation and cross-linking (1995)

Hefter, J., Richnow, H. H., Seifert, R., Michaelis, W.

Alkanoic subunits in sulfur-rich geomacromolecules: Information from stepwise chemical degradation and compound specific isotopic analysis (1995)

Hefter, J., Hauke, V., Richnow, H. H., Michaelis, W.

Metabolites of xenobiotica and mineral oil constituents linked to macromolecular organic matter in polluted environments (1994)

Richnow, H. H., Seifert, R., Hefter, J., Kästner, M., Mahro, B., Michaelis, W.

-(-)Verrucosan-2ß-ol from the phototrophic bacterium Chloroflexus aurantiacus: First report of a verrucosane-type diterpenoid from a prokaryote (1993)

Hefter, J., Richnow, H. H., Fischer, U., Trendel, J. M., Michaelis, W.

Biomarker indications for microbial contribution to Recent and Late Jurassic carbonate deposits (1993)

Hefter, J., Thiel, V., Jenisch, A., Galling, U., Kempe, S., Michaelis, W.

Biogeochemie rezenter Mikrobialithe (1992)

Hefter, J.

El soldado de Juárez, de Napoleón y de Maximiliano (1962)

Hefter, J.

El autor considera que para entender la naturaleza de la guerra de independencia, se hace necesario un estudio sobre las características de los soldados mexicanos que participaron a favor de...

El soldado de Juárez, de Napoleón y de Maximiliano / J. Hefter. (1962)

Hefter, J.

El autor considera que para entender la naturaleza de la guerra de independencia, se hace necesario un estudio sobre las características de los soldados mexicanos que participaron a favor de...

EL SOLDADO DE JUAREZ, DE NAPOLEON Y DE MAXIMILIANO (1962)

Hefter, J.

J. Hefter

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