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  • 1
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    Methane in sediments of the deep Marmara Sea and its relation to local tectonic structures (2002)
    Kluwer
    In:  Bull., Polar Proj. OP-O3A4, Integration of Earth Science Research on the Turkish and Greek 1999 Earthquakes, Dordrecht, Kluwer, vol. 46, no. XVI:, pp. 61-85, (ISBN: 3-540-23712-7)
    Details
    Publication Date: 2002
    Keywords: Geochemistry ; Tectonics ; Fault zone ; NAF ; Hydraulic fracturingSWEEP ; PARASOUND ; samples ; Kuscu ; Pekdeger ; Goeruer ; Gorur ; Turkey
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    Microbial reefs in the Black Sea fueled by anaerobic oxidation of methane (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-08-10
    Description: Massive microbial mats covering up to 4-meter-high carbonate buildups prosper at methane seeps in anoxic waters of the northwestern Black Sea shelf. Strong 13C depletions indicate an incorporation of methane carbon into carbonates, bulk biomass, and specific lipids. The mats mainly consist of densely aggregated archaea (phylogenetic ANME-1 cluster) and sulfate-reducing bacteria (Desulfosarcina/Desulfococcus group). If incubated in vitro, these mats perform anaerobic oxidation of methane coupled to sulfate reduction. Obviously, anaerobic microbial consortia can generate both carbonate precipitation and substantial biomass accumulation, which has implications for our understanding of carbon cycling during earlier periods of Earth's history.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Michaelis, Walter -- Seifert, Richard -- Nauhaus, Katja -- Treude, Tina -- Thiel, Volker -- Blumenberg, Martin -- Knittel, Katrin -- Gieseke, Armin -- Peterknecht, Katharina -- Pape, Thomas -- Boetius, Antje -- Amann, Rudolf -- Jorgensen, Bo Barker -- Widdel, Friedrich -- Peckmann, Jorn -- Pimenov, Nikolai V -- Gulin, Maksim B -- New York, N.Y. -- Science. 2002 Aug 9;297(5583):1013-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Biogeochemistry and Marine Chemistry, University of Hamburg, Bundesstrasse 55, 20146 Hamburg, Germany. michaelis@geowiss.uni-hamburg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12169733" target="_blank"〉PubMed〈/a〉
    Keywords: Anaerobiosis ; Archaea/growth & development/*metabolism ; Biomass ; Carbonates/metabolism ; Chemical Precipitation ; Deltaproteobacteria/growth & development/*metabolism ; Ecosystem ; Geologic Sediments ; Lipid Metabolism ; Methane/*metabolism ; Microscopy, Fluorescence ; Oceans and Seas ; Oxidation-Reduction ; Seawater/*microbiology ; Sulfates/metabolism ; Sulfur-Reducing Bacteria/growth & development/metabolism ; Thermodynamics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Quantified versions of Ingham's theorem (2016)
    Oxford University Press
    Details
    Publication Date: 2016-05-15
    Description: We obtain quantified versions of Ingham's classical Tauberian theorem and some of its variants by means of a natural modification of Ingham's own simple proof. As corollaries of the main general results, we obtain quantified decay estimates for $C_0$ -semigroups. The results reproduce those known in the literature but are both more general and, in one case, sharper. They also lead to a better understanding of the so-called ‘fudge factor’ appearing in proofs based on estimating contour integrals.
    Print ISSN: 0024-6093
    Electronic ISSN: 1469-2120
    Topics: Mathematics
    Published by Oxford University Press
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  • 4
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    Hydrogen is an energy source for hydrothermal vent symbioses (2011)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2011-08-13
    Description: The discovery of deep-sea hydrothermal vents in 1977 revolutionized our understanding of the energy sources that fuel primary productivity on Earth. Hydrothermal vent ecosystems are dominated by animals that live in symbiosis with chemosynthetic bacteria. So far, only two energy sources have been shown to power chemosynthetic symbioses: reduced sulphur compounds and methane. Using metagenome sequencing, single-gene fluorescence in situ hybridization, immunohistochemistry, shipboard incubations and in situ mass spectrometry, we show here that the symbionts of the hydrothermal vent mussel Bathymodiolus from the Mid-Atlantic Ridge use hydrogen to power primary production. In addition, we show that the symbionts of Bathymodiolus mussels from Pacific vents have hupL, the key gene for hydrogen oxidation. Furthermore, the symbionts of other vent animals such as the tubeworm Riftia pachyptila and the shrimp Rimicaris exoculata also have hupL. We propose that the ability to use hydrogen as an energy source is widespread in hydrothermal vent symbioses, particularly at sites where hydrogen is abundant.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Petersen, Jillian M -- Zielinski, Frank U -- Pape, Thomas -- Seifert, Richard -- Moraru, Cristina -- Amann, Rudolf -- Hourdez, Stephane -- Girguis, Peter R -- Wankel, Scott D -- Barbe, Valerie -- Pelletier, Eric -- Fink, Dennis -- Borowski, Christian -- Bach, Wolfgang -- Dubilier, Nicole -- England -- Nature. 2011 Aug 10;476(7359):176-80. doi: 10.1038/nature10325.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institute for Marine Microbiology, Celsiusstrasse 1, 28359 Bremen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21833083" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Atlantic Ocean ; Bivalvia/drug effects/metabolism/*microbiology ; Dose-Response Relationship, Drug ; *Ecosystem ; *Energy Metabolism ; Geologic Sediments/chemistry ; Gills/drug effects/metabolism/microbiology ; Hot Springs/*chemistry/microbiology ; Hydrogen/analysis/*metabolism/pharmacology ; Hydrogenase/genetics/metabolism ; Molecular Sequence Data ; Oxidation-Reduction ; Partial Pressure ; Seawater/chemistry/microbiology ; Sulfides/metabolism ; Sulfur/metabolism ; Symbiosis/drug effects/genetics/*physiology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 5
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    The CatSper channel mediates progesterone-induced Ca2+ influx in human sperm (2011)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2011-03-18
    Description: In the oviduct, cumulus cells that surround the oocyte release progesterone. In human sperm, progesterone stimulates a Ca(2+) increase by a non-genomic mechanism. The Ca(2+) signal has been proposed to control chemotaxis, hyperactivation and acrosomal exocytosis of sperm. However, the underlying signalling mechanism has remained mysterious. Here we show that progesterone activates the sperm-specific, pH-sensitive CatSper Ca(2+) channel. We found that both progesterone and alkaline pH stimulate a rapid Ca(2+) influx with almost no latency, incompatible with a signalling pathway involving metabotropic receptors and second messengers. The Ca(2+) signals evoked by alkaline pH and progesterone are inhibited by the Ca(v) channel blockers NNC 55-0396 and mibefradil. Patch-clamp recordings from sperm reveal an alkaline-activated current carried by mono- and divalent ions that exhibits all the hallmarks of sperm-specific CatSper Ca(2+) channels. Progesterone substantially enhances the CatSper current. The alkaline- and progesterone-activated CatSper current is inhibited by both drugs. Our results resolve a long-standing controversy over the non-genomic progesterone signalling. In human sperm, either the CatSper channel itself or an associated protein serves as the non-genomic progesterone receptor. The identification of CatSper channel blockers will greatly facilitate the study of Ca(2+) signalling in sperm and help to define further the physiological role of progesterone and CatSper.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Strunker, Timo -- Goodwin, Normann -- Brenker, Christoph -- Kashikar, Nachiket D -- Weyand, Ingo -- Seifert, Reinhard -- Kaupp, U Benjamin -- England -- Nature. 2011 Mar 17;471(7338):382-6. doi: 10.1038/nature09769.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center of Advanced European Studies and Research, Abteilung Molekulare Neurosensorik, Ludwig-Erhard-Allee 2, 53175 Bonn, Germany. timo.struenker@caesar.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21412338" target="_blank"〉PubMed〈/a〉
    Keywords: Alprostadil/pharmacology ; Benzimidazoles/pharmacology ; Calcium/*metabolism ; Calcium Channel Blockers/pharmacology ; Calcium Channels/*metabolism ; Calcium Signaling/*drug effects ; Cyclic AMP ; Cyclopropanes/pharmacology ; Electric Conductivity ; Humans ; Hydrogen-Ion Concentration ; Male ; Mibefradil/pharmacology ; Naphthalenes/pharmacology ; Patch-Clamp Techniques ; Progesterone/metabolism/*pharmacology ; Spermatozoa/*drug effects/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 6
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    The solute carrier SLC9C1 is a Na + /H + -exchanger gated by an S4-type voltage-sensor and cyclic-nucleotide binding (2018)
    Springer Nature
    Details
    Publication Date: 2018-07-19
    Description: The solute carrier SLC9C1 is a Na + /H + -exchanger gated by an S4-type voltage-sensor and cyclic-nucleotide binding The solute carrier SLC9C1 is a Na〈sup〉+〈/sup〉/H〈sup〉+〈/sup〉-exchanger gated by an S4-type voltage-sensor and cyclic-nucleotide binding, Published online: 18 July 2018; doi:10.1038/s41467-018-05253-x The sperm-specific solute carrier SLC9C1 is a phylogenetic chimaera that carries a voltage-sensing (VSD) and a cyclic nucleotide-binding domain (CNBD). Here authors show by electrophysiology and fluorimetry that SLC9C1 is a genuine Na+/H+ exchanger gated by voltage and cAMP.
    Electronic ISSN: 2041-1723
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General , Physics
    Published by Springer Nature
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  • 7
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    Deep-sea hydrothermal microplume generation - a case study from the North Fiji Basin (2001)
    Springer
    Details
    Publication Date: 2001-09-01
    Print ISSN: 0276-0460
    Electronic ISSN: 1432-1157
    Topics: Geosciences
    Published by Springer
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  • 8
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    Developments in Tar Sands in 1984 (1985)
    American Association of Petroleum Geologists
    Details
    Publication Date: 1985-01-01
    Print ISSN: 0149-1423
    Electronic ISSN: 1943-2674
    Topics: Geosciences
    Published by American Association of Petroleum Geologists
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  • 9
    Electronic Resource
    Electronic Resource
    A convenient synthesis of nona-trans-2,cis-6-dienal (1968)
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 16 (1968), S. 880-881 
    Details
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jf60159a036
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    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Characterization of additional volatile components of tomato (1971)
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 19 (1971), S. 524-529 
    Details
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jf60175a011
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