Results 51 to 60 of about 1,179,358 (368)

ISOTOPIC ABUNDANCES OF MAGNESIUM - ²⁴Mg, ²⁵ Mg, ²⁶ Mg IN THE ATMOSPHERES OF G-K - GIANTS

Odessa Astronomical Publications, 2017
The isotopic abundances of magnesium in the star of thin disk of Galaxy with various chromospheric activity were studied. We use the new data about molecular constants of radiation for isotopes 24Mg, 25Mg, and 26Mg.
V. V. Kovtyukh, N. S. Komarov, S. M. Andrievsky, I. F. Dulapchi   +3 more
doaj   +1 more source

Anammox Bacteria Are Potentially Involved in Anaerobic Ammonium Oxidation Coupled to Iron(III) Reduction in the Wastewater Treatment System

Frontiers in Microbiology, 2021
Anaerobic ammonium oxidation coupled to nitrite reduction (termed as Anammox) was demonstrated as an efficient pathway to remove nitrogen from a wastewater treatment system.
Xiao-Ru Yang, Xiao-Ru Yang, Hu Li, Hu Li, Jian-Qiang Su, Jian-Qiang Su, Guo-Wei Zhou, Guo-Wei Zhou, Guo-Wei Zhou   +8 more
doaj   +1 more source

Near infrared spectroscopy of M dwarfs. IV. A preliminary survey on the carbon isotopic ratios in M dwarfs

, 2016
Based on the medium resolution near infrared spectra of 13CO (3,1) band, carbon isotopic ratios are estimated in 48 M dwarfs, for which we had determined the carbon and oxygen abundances from CO and H2O lines, respectively. We find clear evidence for the
Tsuji, Takashi
core   +1 more source

Heavy-element yields and abundances of Asymptotic Giant Branch models with a Small Magellanic Cloud metallicity [PDF]

, 2018
We present new theoretical stellar yields and surface abundances for asymptotic giant branch (AGB) models with a metallicity appropriate for stars in the Small Magellanic Cloud (SMC, $Z= 0.0028$, [Fe/H] $\approx -0.7$).
Carlos, Marília, Cseh, Borbála, García-Hernández, D. A., Kamath, Devika, Karakas, Amanda, Lugaro, Maria   +5 more
core   +2 more sources

CSF Levels of NPTX2 Are Associated With Less Brain Atrophy Over Time in Cognitively Unimpaired Individuals

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Neuronal pentraxin 2 (NPTX2) is a synaptic protein involved in synaptic plasticity and regulation of neuronal excitability. Lower baseline cerebrospinal fluid (CSF) NPTX2 levels have been shown to be associated with an earlier onset of mild cognitive impairment (MCI), a pre‐dementia syndrome, even after CSF Alzheimer's Disease (AD)
Juan P. Vazquez, Corinne Pettigrew, Yuxin Zhu, Claire Anderson, Guray Erus, Christos Davatzikos, Michael Miller, Abhay Moghekar, Sungtaek Oh, Chan‐Hyun Na, Marilyn Albert, Paul Worley, Anja Soldan   +12 more
wiley   +1 more source

Potential Chronological Disturbance of the D’Orbigny Angrite Inferred from Discordant 26Al Ages

The Astrophysical Journal Letters
Angrites originate from the early-formed differentiated angrite parent body. The pristine volcanic angrite D’Orbigny is devoid of brecciation, shock effects, or any evidence of secondary processes and is thus key for studying the early stages of ...
Cécile Deligny, Maxime Piralla, Johan Villeneuve, Evelyn Füri, Yves Marrocchi   +4 more
doaj   +1 more source

Atom probe microscopy of zinc isotopic enrichment in ZnO nanorods

AIP Advances, 2017
We report on atomic probe microscopy (APM) of isotopically enriched ZnO nanorods that measures the spatial distribution of zinc isotopes in sections of ZnO nanorods for natural abundance natZnO and 64Zn and 66Zn enriched ZnO nanorods.
C. N. Ironside, D. W. Saxey, W. D. A. Rickard, C. Gray, E. McGlynn, S. M. Reddy, N. A. Marks   +6 more
doaj   +1 more source

Is the Sun Lighter than the Earth? Isotopic CO in the Photosphere, Viewed through the Lens of 3D Spectrum Synthesis

, 2013
We consider the formation of solar infrared (2-6 micron) rovibrational bands of carbon monoxide (CO) in CO5BOLD 3D convection models, with the aim to refine abundances of the heavy isotopes of carbon (13C) and oxygen (18O,17O), to compare with direct ...
Ayres, Thomas R., Caffau, E., Ludwig, H. -G., Lyons, J. R., Wedemeyer-Böhm, S.   +4 more
core   +2 more sources

Short-lived Nuclei in the Early Solar System: Possible AGB Sources [PDF]

, 2005
(Abridged) We review abundances of short-lived nuclides in the early solar system (ESS) and the methods used to determine them. We compare them to the inventory for a uniform galactic production model.
Abia, Abia, Alexander, Amari, Amari, Amelin, Amelin, Anders, Anders, Andric, Angulo, Argast, Arlandini, Audouze, Bao, Birck, Birck, Birck, Bizzarro, Black, Blake, Blander, Boothroyd, Boss, Brearley, Burbidge, Burnett, Busso, Busso, Busso, Cameron, Cameron, Cameron, Cameron, Cantelaube, Carlson, Cassen, Cayrel, Chakraborty, Charbonnel, Charbonnel, Chen, Chen, Chen, Chen, Chen, Chen, Chen, Chin, Choi, Choi, Choi, Clayton, Clayton, Clayton, Clayton, Connolly, Cowan, Cuzzi, Cuzzi, Dearborn, Denissenkov, Denissenkov, Desch, Diehl, Draine, Draine, Draine, Ebel, El Goresy, Feigelson, Formicola, Foster, Fowler, Fox, Frost, Frost, G.J. Wasserburg, Gallino, Gallino, Galy, Galy, Gao, Gilroy, Goriely, Goswami, Gounelle, Gray, Gray, Greenstein, Grossman, Grossman, Guan, Göbel, Göpel, Hagee, Harper, Harper, Harper, Harris, Hashizume, Hill, Hill, Hinton, Honda, Hoppe, Hsu, Huss, Huss, Huss, Huss, Huss, Huss, Hutcheon, Hutcheon, Hutcheon, Hutcheon, Iben, Jacobsen, Jacobsen, Jeffery, Jones, K.M. Nollett, Karakas, Karakas, Kelly, Kita, Kleine, Kratz, Krestina, Krot, Käppeler, Lattanzio, Lattanzio, Lee, Lee, Lee, Lee, Lee, Leya, Limongi, Lin, Lin, Lingenfelter, Liu, Lodders, Lodders, Lucatello, Lugaro, Lugaro, Lugaro, Lugmair, Lugmair, Lyons, M. Busso, MacPherson, Marcus, Marhas, Marhas, Marhas, Marhas, Marhas, Marvin, Mauersberger, Mauersberger, Mauersberger, McKeegan, McKeegan, McWilliam, McWilliam, Messenger, Meyer, Meyer, Minster, Mostefaoui, Mostefaoui, Mostefaoui, Mostefaoui, Mowlavi, Murty, Münker, Nakamura, Navon, Nguyen, Nguyen, Nicolussi, Nicolussi, Nicolussi, Nittler, Nittler, Nittler, Nittler, Nittler, Nollett, Nomoto, Nyquist, Nyquist, Ott, Papanastassiou, Podosek, Porcelli, Prantzos, Prinzhofer, Péquignot, Qian, Qian, Qian, Qian, R. Gallino, Rai, Rauscher, Rauscher, Reifarth, Renzini, Reynolds, Rotaru, Rowe, Runkle, Runkle, Russell, Sahijpal, Savina, Schramm, Schramm, Schönbächler, Seeger, Sharp, Sheng, Shu, Shu, Shu, Shukolyukov, Shukolyukov, Simanton, Smith, Sneden, Sneden, Srinivasan, Srinivasan, Srinivasan, Srinivasan, Srinivasan, Stadermann, Stegmann, Stewart, Stirling, Storzer, Straniero, Straniero, Tachibana, Tachibana, Takahashi, Tera, Tera, Thielemann, Thiemens, Thompson, Timmes, Travaglio, Travaglio, Turner, Urey, Urey, Villa, Vockenhuber, Völkening, Wadhwa, Wadhwa, Wasserburg, Wasserburg, Wasserburg, Wasserburg, Wasserburg, Wasserburg, Wasserburg, Wasserburg, Weiss, Whitby, Wilson, Wood, Woodland, Woosley, Woosley, Yin, Yin, Young, Yurimoto, Zinner, Zinner   +288 more
core   +3 more sources

Low‐Loss Far‐Infrared Surface Phonon Polaritons in Suspended SrTiO3 Nanomembranes

Advanced Functional Materials, EarlyView.
The low‐loss, highly confined, and thickness‐tunable surface phonon polaritons are demonstrated in the far‐infrared regime within transferable freestanding SrTiO3 membranes, achieving high figures of merit comparable to the previous record values from the vdW materials.
Konnor Koons, Hans A. Bechtel, Javier Taboada‐Gutiérrez, Reza Ghanbari, Yueyin Wang, Stephanie N. Gilbert Corder, Alexey B. Kuzmenko, Ruijuan Xu, Yin Liu   +8 more
wiley   +1 more source