Results 31 to 40 of about 225,878 (298)

Possible discovery of the r-process characteristics in the abundances of metal-rich barium stars

, 2014
We study the abundance distributions of a sample of metal-rich barium stars provided by Pereira et al. (2011) to investigate the s- and r-process nucleosynthesis in the metal-rich environment. We compared the theoretical results predicted by a parametric
Cui, W. Y., Niu, P., Shi, J. R., Wang, W. J., Zhang, B., Zhao, G.   +5 more
core   +1 more source

On the subject of the Ba overabundance in the open clusters stars [PDF]

, 2016
For eight distant open clusters, namely Ruprecht 4, Ruprecht 7, Berkeley 25, Berkeley 73, Berkeley 75, NGC 6192, NGC 6404, and NGC 6583, we determined the yttrium and barium abundances using the UVES, VLT spectra (ESO, Chile).
Carraro, Giovanni, Korotin, S. A., Kovtyukh, V. V., Mishenina, T. V., Yegorova, I. A.   +4 more
core   +1 more source

catena-Poly[barium(II)-μ2-(dimethyl sulfoxide)-κ2O:O-bis(μ2-2,4,6-trinitrophenolato-κ4O2,O1:O1,O6)]

IUCrData, 2020
The asymmetric unit of the title barium coordination polymer, [Ba(C6H2N3O7)2(C2H6OS)]n, consists of a barium cation (site symmetry m) and a dimethyl sulfoxide (DMSO) ligand (point group symmetry m) and a 2,4,6-trinitrophenolate anion located in general ...
Bikshandarkoil R. Srinivasan, Neha U. Parsekar, Kedar U. Narvekar   +2 more
doaj   +1 more source

NO_x Reduction Pathways during LNT Operation over Ceria Containing Catalysts: Effect of Copper Presence and Barium Content

Applied Sciences, 2021
Ceria-based catalysts, with Cu in substitution of noble metals, were studied in a vertical microreactor system under isothermal conditions, where NOx was previously stored, followed by the reduction step conducted under H2.
Juan Carlos Martínez-Munuera, Javier A. Giménez-Mañogil, Roberto Matarrese, Lidia Castoldi, Avelina García-García   +4 more
doaj   +1 more source

Barium & related stars and their white-dwarf companions I. Giant stars

, 2019
This paper provides long-period and revised orbits for barium and S stars adding to previously published ones. The sample of barium stars with strong anomalies comprise all such stars present in the Lu et al. catalogue.
Boffin, H. M. J., Escorza, A., Jorissen, A., Karinkuzhi, D., Shetye, S., Van Eck, S., Van Winckel, H.   +6 more
core   +1 more source

An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane

FEBS Letters, EarlyView.
Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa, Akira Hattori, Masafumi Tsujimoto, Toshihide Kobayashi   +3 more
wiley   +1 more source

Recurrent cancer‐associated ERBB4 mutations are transforming and confer resistance to targeted therapies

Molecular Oncology, EarlyView.
We show that the majority of the 18 analyzed recurrent cancer‐associated ERBB4 mutations are transforming. The most potent mutations are activating, co‐operate with other ERBB receptors, and are sensitive to pan‐ERBB inhibitors. Activating ERBB4 mutations also promote therapy resistance in EGFR‐mutant lung cancer.
Veera K. Ojala, Sini Ahonen, Sara Peltola, Aura Tuohisto‐Kokko, Olaya Esparta, Peppi Suominen, Anne Jokilammi, Iman Farahani, Deepankar Chakroborty, Nikol Dibus, Steffen Boettcher, Tomi T. Airenne, Mark S. Johnson, Lisa D. Eli, Klaus Elenius, Kari J. Kurppa   +15 more
wiley   +1 more source

Simulating cold atomic hydrogen production in linear radiofrequency ion traps

New Journal of Physics
We simulated the motion of ${\mathrm{BaH^{+}}}$ molecular ions which are sympathetically cooled by laser-cooled ${\mathrm{Ba^{+}}}$ ions in linear quadrupole and octupole radiofrequency (RF) ion traps.
Nikita Poljakov, Muhammed Sameed, Steven Armstrong Jones   +2 more
doaj   +1 more source

History of Los Alamos Participation in Active Experiments in Space

Frontiers in Physics, 2018
Los Alamos has a long history of participation in active experiments in space beginning with the Teak nuclear test in 1958. Above-ground nuclear testing stopped in 1962 because of the Partial Test Ban Treaty, and a program of non-nuclear chemical release
Morris B. Pongratz
doaj   +1 more source

Barium release system [PDF]

, 1973
A chemical system is described for releasing a good yield of free barium neutral atoms and barium ions in the upper atmosphere and interplanetary space for the study of the geophysical properties of the medium.
Lewis, B. W., Murphy, W. J., Smith, E. W., Stokes, C. S.   +3 more
core   +1 more source