Results 31 to 40 of about 67,957 (294)

Organosulfur Aerosols Likely Carried Sulfur MIF Signatures in the Early Earth’s Atmosphere

Geochemistry, Geophysics, Geosystems, 2023
Signatures of mass‐independent fractionation (MIF) of sulfur in Archean sulfide and sulfate minerals are widely thought to record an anoxic early Earth’s atmosphere.
Harry Oduro, Shuhei Ono, Faisal Alrasheed, Daniel L. Eldridge   +3 more
doaj   +1 more source

Calculations of Thermodynamic Sulfur Isotope Effect [PDF]

Journal of Nuclear Science and Technology, 1985
The isotopic reduced partition function ratios (RPFR), (s/s')f, for the 34S/32S isotopic pair were calculated for 24 sulfur compounds between 10 and 2,000K. Their magnitudes were in the following sequences; at low enough temperatures at which In(s/s')f depends only on the isotopic difference in frequency-sum, SF6>SO2F2>SF5Cl>SF5Br>SO4 2->SO2Cl2>SO3 ...
Takao OI, Naoko TAGUMA, Hidetake KAKIHANA   +2 more
openaire   +1 more source

Large sulfur isotope fractionations in Martian sediments at Gale crater [PDF]

, 2017
Variability in the sulfur isotopic composition in sediments can reflect atmospheric, geologic and biological processes. Evidence for ancient fluvio-lacustrine environments at Gale crater on Mars and a lack of efficient crustal recycling mechanisms on the
AS Yen, C Freissinet, CK Shearer, DL Eldridge, DT Vaniman, F-Y Leung, GR Osinski, H Ohmoto, HB Franz, HB Franz, HB Franz, I Halevy, IN Bindeman, J Farquhar, J Farquhar, J Parnell, J Savarino, JP Greenwood, JP Greenwood, JP Greenwood, JP Grotzinger, KA Farley, KM Stack, M Nachon, O Abramov, RRI Seal, S Chakraborty, SA Benner, SP Schwenzer, SP Schwenzer, SS Johnson, T Ding   +31 more
core   +1 more source

Nature of Isomerism in Exotic Sulfur Isotopes [PDF]

Physical Review Letters, 2015
5 pages, 2 ...
Utsuno, Yutaka, Shimizu, Noritaka, Otsuka, Takaharu, Yoshida, Tooru, Tsunoda, Yusuke   +4 more
openaire   +3 more sources

Sclerite formation in the hydrothermal-vent “scaly-foot” gastropod — possible control of iron sulfide biomineralization by the animal [PDF]

, 2006
A gastropod from a deep-sea hydrothermal field at the Rodriguez triple junction, Indian Ocean, has scale-shaped structures, called sclerites, mineralized with iron sulfides on its foot.
Chiba, Hitoshi, Endo, Kazuyoshi, Hashimoto, Jun, Hirata, Takafumi, Horikoshi, Koki, Kato, Yasuhiro, Kirschvink, Joseph L., Kogure, Toshihiro, Kopp, Robert E., Mizota, Chitoshi, Nealson, Kenneth H., Ozaki, Noriaki, Suga, Akinobu, Suzuki, Yohey, Takai, Ken, Tsuchida, Shinji   +15 more
core   +2 more sources

Influence of Phosphorus and Cell Geometry on the Fractionation of Sulfur Isotopes by Several Species of Desulfovibrio during Microbial Sulfate Reduction

Frontiers in Microbiology, 2017
We investigated the influence of organic substrates and phosphate concentration on the rates of dissimilatory microbial sulfate reduction and the 34S/32S isotopic fractionation produced by several Desulfovibrio species.
Shikma Zaarur, David T. Wang, Shuhei Ono, Tanja Bosak   +3 more
doaj   +1 more source

Kinetic model of carbonate dissolution in Martian meteorite ALH84001 [PDF]

, 2003
The magnetites and sulfides located in the rims of carbonate globules in the Martian meteorite ALH84001 have been claimed as evidence of past life on Mars.
Humayun, Munir, Kopp, Robert E.
core   +1 more source

Photoactivation of NV Centers in Diamond via Continuous Wave Laser Illumination of Shallow As‐Implanted Nitrogen

Advanced Functional Materials, EarlyView.
This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann, Christoph Findler, Michael Olney‐Fraser, Lev Kazak, Fedor Jelezko   +4 more
wiley   +1 more source

Discovery of the Isotopes with 11 <= Z <= 19

, 2011
A total of 194 isotopes with 11 $\le$ Z $\le$ 19 have been identified to date. The discovery of these isotopes which includes the observation of unbound nuclei, is discussed.
Ajzenberg-Selove, Alvarez, Amaldi, Andersen, Artukh, Aston, Aston, Aston, Aston, Aston, Aston, Aston, Aston, Audi, Auger, Barton, Baumann, Benenson, Benenson, Benenson, Berg, Bethe, Birge, Boley, Bradner, Brosi, Butler, Cable, Cable, Cerny, Churchill, Cohen, Corson, Creutz, Curie, Curie, Dempster, Dempster, Détraz, Eckardt, Ellis, Fahlenbrach, Fermi, Frisch, Frisch, Ginepro, Glass, Goriely, Grahame, Grimm, Grévy, Guillemaud-Mueller, Guillemaud-Mueller, Hagberg, Hansen, Hardy, Hardy, Haslam, Hevesy, Hoag, Hollander, Huber, Huber, Huber, Huck, Hurst, Jelley, Joliot, Kashy, Katcoff, Kennedy, King, Klapisch, Klapisch, Klapisch, Kuerti, Kuroyanagi, Langevin, Langevin, Langevin, Larson, Lederer, Lewitowicz, Lindner, Lindner, Livingood, Lukyanov, M. Thoennessen, MacFarlane, Mantica, Marinov, McPherson, Meye, Miller, Morinaga, Morinaga, Morris, Mukha, Mulliken, Nethaway, Nier, Nier, Notani, Nurmia, Overstreet, Pollard, Pool, Reeder, Robertson, Robinson, Robinson, Robinson, Saint-Laurent, Sakurai, Sakurai, Seaborg, Seaborg, Sheline, Sheline, Snell, Strominger, Stähelin, Sun, Symons, Tarasov, Tarasov, Thoennessen, Turkevich, Tyren, Van Voorhis, Walke, Weimer, Westfall, White, White, Yaffe, Zeeman, Zerguerras, Zünti, Äystö   +139 more
core   +1 more source

Biotechnological aspects of sulfate reduction with methane as electron donor [PDF]

, 2010
Biological sulfate reduction can be used for the removal and recovery of oxidized sulfur compounds and metals from waste streams. However, the costs of conventional electron donors, like hydrogen and ethanol, limit the application possibilities.
Lens, P.N.L., Meulepas, R.J.W., Stams, A.J.M.   +2 more
core   +2 more sources