Search Results - "Kamyshny Jr, Alexey"

Iron and sulfide nanoparticle formation and transport in nascent hydrothermal vent plumes by Findlay, Alyssa J., Estes, Emily R., Gartman, Amy, Yücel, Mustafa, Kamyshny, Alexey, Luther, George W.

“…Deep-sea hydrothermal vents are a significant source of dissolved metals to the global oceans, producing midwater plumes enriched in metals that are…”
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Microbial consumption of zero-valence sulfur in marine benthic habitats by Pjevac, Petra, Kamyshny Jr, Alexey, Dyksma, Stefan, Mußmann, Marc

“…Summary Zero‐valence sulfur (S0) is a central intermediate in the marine sulfur cycle and forms conspicuous accumulations at sediment surfaces, hydrothermal…”
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Sulfidization of lacustrine glacial clay upon Holocene marine transgression (Arkona Basin, Baltic Sea) by Holmkvist, Lars, Kamyshny, Alexey Jr, Bruechert, Volker, Ferdelman, Timothy G, Joergensen, Bo Barker

“…Towards the end of the last deglaciation more than 13,500 years ago the southern Baltic Sea was a freshwater lake, the Baltic Ice Lake, for several thousand…”
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Equilibrium Distribution of Polysulfide Ions in Aqueous Solutions at Different Temperatures by Rapid Single Phase Derivatization by Kamyshny, Alexey, Gun, Jenny, Rizkov, Dan, Voitsekovski, Tamara, Lev, Ovadia

“…Polysulfides are abundant form of reduced sulfur compounds whose distribution in aquatic systems continues to pose environmental challenge. The Gibbs…”
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Multiple sulfur isotopes fractionations associated with abiotic sulfur transformations in Yellowstone National Park geothermal springs by Kamyshny, Alexey, Druschel, Gregory, Mansaray, Zahra F, Farquhar, James

“…Background The paper presents a quantification of main (hydrogen sulfide and sulfate), as well as of intermediate sulfur species (zero-valent sulfur (ZVS),…”
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Quadruple sulfur isotope constraints on the origin and cycling of volatile organic sulfur compounds in a stratified sulfidic lake by Oduro, Harry, Kamyshny, Alexey, Zerkle, Aubrey L., Li, Yue, Farquhar, James

“…We have quantified the major forms of volatile organic sulfur compounds (VOSCs) distributed in the water column of stratified freshwater Fayetteville Green…”
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Method for the Determination of Inorganic Polysulfide Distribution in Aquatic Systems by Kamyshny, Alexey, Ekeltchik, Irina, Gun, Jenny, Lev, Ovadia

“…Inorganic polysulfides have significant technological importance, and their environmental role is gradually being unraveled. But despite their importance,…”
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Reactivity of hydrogen sulfide toward organic compounds with sulfur-sulfur bonds by Zweig, Irina, Kamyshny, Alexey

“…The presence of organic molecules containing sulfur-sulfur bonds was documented in the water columns and sediments of the natural aquatic systems as well as in…”
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Kinetics of Decomposition of Thiocyanate in Natural Aquatic Systems by Kurashova, Irina, Halevy, Itay, Kamyshny, Alexey

“…Rates of thiocyanate degradation were measured in waters and sediments of marine and limnic systems under various redox conditions, oxic, anoxic (nonsulfidic,…”
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Kinetics and mechanism of polysulfides and elemental sulfur formation by a reaction between hydrogen sulfide and δ-MnO2 by Avetisyan, Khoren, Zweig, Irina, Luther, George W., Kamyshny, Alexey

“…Formation rates for various products of hydrogen sulfide oxidation by δ-MnO2 were studied as a function of pH, temperature, concentration of the reactants, and…”
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Biogeochemical sulfur transformations in the cohesive and permeable tidal flat sediments of Jade Bay (North Sea) by Kamyshny, Alexey, Sela, Debora, Klein, Rotem, Turchyn, Alexandra V., Antler, Gilad, Freund, Holger

“…Intertidal flats are highly productive coastal marine ecosystems which are affected by fast changes in environmental conditions and host dynamic biogeochemical…”
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The influence of the chemical composition of phosphorites from southern Israel on foaming during acidification by Levy, Amit, Gelman, Faina, Schneider-Mor, Aya, Kamyshny, Alexey

“…[Display omitted] •Foam volume increases with the amount of CaCO3 in phosphorites.•Foam stability affected by the content of humic substances and their…”
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Petrological and chemical characterizations of pristine and reworked phosphorites from Negev, Israel: Insights into industrial usage by Levy, Amit, Schneider-Mor, Aya, Gelman, Faina, Kamyshny, Alexey

“…Phosphorites are an essential natural resource for producing phosphoric acid, phosphate fertilizers, and phosphate-based products. Detailed characterization…”
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Kinetics of Thiocyanate Formation by Reaction of Cyanide with Tetrathionate by Kurashova, Irina, Kamyshny, Alexey

“…In aquatic systems a reaction between tetrathionate and cyanide results in the formation of thiocyanate. We have studied kinetics of the reactions of…”
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Influence of environmental settings, including vegetation, on speciation of the redox-sensitive elements in the sediments of monomictic Lake Kinneret by Kamyshny, Alexey, Klein, Rotem, Eckert, Werner, Avetisyan, Khoren

“…Abstract The redox conditions in the littoral limnic sediments may be affected by the penetration of plant roots which provide channels for oxygen transport…”
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Improved cyanolysis protocol for detection of zero‐valent sulfur in natural aquatic systems by Kamyshny, Alexey

“…We propose a novel protocol for detection of reactive zero‐valent sulfur (ZVS) in natural aquatic samples including seawater. Reaction with hot potassium…”
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Eutrophication leads to the formation of a sulfide-rich deep-water layer in Lake Sevan, Armenia by Avetisyan, Khoren, Mirzoyan, Natella, Payne, Rayford B., Hayrapetyan, Vardan, Kamyshny Jr, Alexey

“…Lake Sevan is a meso-eutrophic water body, which was severely impacted by anthropogenic level decrease, pollution and eutrophication during the last century…”
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Intermediate sulfur oxidation state compounds in the euxinic surface sediments of the Dvurechenskii mud volcano (Black Sea) by Lichtschlag, Anna, Kamyshny, Alexey, Ferdelman, Timothy G., deBeer, Dirk

“…The deep Black Sea is known to be depleted in electron-acceptors for sulfide oxidation. This study on depth distributions of sulfur species (S(II), S(0), Sn2-,…”
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Equilibrium Distribution of Polysulfide Ions in Aqueous Solutions at 25 °C:  A New Approach for the Study of Polysulfides' Equilibria by Kamyshny, Alexey, Goifman, Anatoly, Gun, Jenny, Rizkov, Dan, Lev, Ovadia

“…A new approach based on rapid, chemical derivatization in a single phase was used to determine the disproportionation constants and the underlying…”
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Impact of Aeolian Dry Deposition of Reactive Iron Minerals on Sulfur Cycling in Sediments of the Gulf of Aqaba by Blonder, Barak, Boyko, Valeria, Turchyn, Alexandra V, Antler, Gilad, Sinichkin, Uriel, Knossow, Nadav, Klein, Rotem, Kamyshny, Jr, Alexey

“…The Gulf of Aqaba is an oligotrophic marine system with oxygen-rich water column and organic carbon-poor sediments (≤0.6% at sites that are not influenced by…”
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