Results 51 to 60 of about 19,633 (239)

The Diderot meteorite: The second chassignite [PDF]

, 2005
The Diderot meteorite is a dunite discovered in Sahara.
Barrat, J-A., Beck, P., Bohn, M., Cotten, J., Franchi, I.A., Gillet, Ph., Greenwood, R.C., Reynard, B., Van de Moortele, B.   +8 more
core  

Effects of motor and cognitive‐motor training on cognitive performance in healthy older adults

Journal of Neuropsychology, EarlyView.
Abstract With a rapidly aging global population, identifying effective strategies to preserve cognitive health and functional independence is increasingly important. This study investigated the effects of motor and combined cognitive‐motor training on cognitive performance and well‐being in healthy older adults against a control condition. Participants
Silvia Gobbo, Elisa Galli, Daniele Romano   +2 more
wiley   +1 more source

Peculiarities of the composition and genesis of the Brahin meteorite

Учёные записки Казанского университета: Серия Естественные науки, 2018
A polished plate of the Brahin meteorite from the collection of the Geological Museum of the Institute of Geology and Petroleum Technologies of Kazan Federal University has been studied with the use of microprobe analysis.
A.I. Bakhtin, A.A. Eskin, R.Kh. Sungatullin, G.V. Sonin, R.D. Petrova   +4 more
doaj  

CO Self-Shielding as a Mechanism to Make 16O-Enriched Solids in the Solar Nebula

Challenges, 2014
Photochemical self-shielding of CO has been proposed as a mechanism to produce solids observed in the modern, 16O-depleted solar system. This is distinct from the relatively 16O-enriched composition of the solar nebula, as demonstrated by the oxygen ...
Joseph A. Nuth, III, Natasha M. Johnson, Hugh G. M. Hill   +2 more
doaj   +1 more source

New knowledge about shock events that affected the L‐chondrite parent body from two heavily shocked L6 meteorite finds

Meteoritics &Planetary Science, EarlyView.
Abstract We report new results from a study of shock‐related features in the L6 ordinary chondrites Northwest Africa (NWA) 4672 and NWA 12841. Our observations confirm the occurrence of eight high‐pressure (HP) minerals in each meteorite, namely, ringwoodite, majorite, akimotoite, wadsleyite, albitic jadeite, lingunite, tuite, and xieite.
I. Baziotis, L. Ferrière, C. Ma, J. Hu, D. Palles, P. D. Asimow   +5 more
wiley   +1 more source

Bunburra Rockhole: Exploring the geology of a new differentiated asteroid [PDF]

, 2017
Bunburra Rockhole is the first recovered meteorite of the Desert Fireball Network. We expanded a bulk chemical study of the Bunburra Rockhole meteorite to include major, minor and trace element analyses, as well as oxygen and chromium isotopes, in ...
Benedix, G.K., Bevan, A.W.R., Bland, P.A., Franchi, I.A., Friedrich, J.M., Greenwood, R.C., Mertzman, S.A., Mittlefehldt, D.W., Perrotta, G.C., Sanborn, M.E., Towner, M.C., Yin, Q.-Z.   +11 more
core   +1 more source

Noble gases and nitrogen in material from asteroid Bennu

Meteoritics &Planetary Science, EarlyView.
Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty, L. Zimmermann, E. Füri, D. V. Bekaert, J. J. Barnes, A. N. Nguyen, H. C. Connolly, D. S. Lauretta   +7 more
wiley   +1 more source

Davisite, CaScAlSiO_6, a new pyroxene from the Allende meteorite [PDF]

, 2009
Davisite, ideally CaScAlSiO_6, is a new member of the Ca clinopyroxene group, where Sc^(3+) is dominant in the M1 site. It occurs as micro-sized crystals along with perovskite and spinel in an ultra-refractory inclusion from the Allende meteorite.
Ma, Chi, Rossman, George R.
core  

Antimatter Bounds by Anti-Asteroids annihilations on Planets and Sun [PDF]

, 2002
The existence of antimatter stars in the Galaxy as possible signature for inflationary models with non-homogeneous baryo-synthesis may leave the trace by antimatter cosmic rays as well as by their secondaries (anti-planets and anti-meteorites) diffused ...
Chechetkin, Chechetkin, Cohen, D. Fargion, Fargion, Golubkov, Khlopov, Khlopov, Khlopov, Khlopov, Khlopov, Konstantinov, M. Khlopov, Sakharov, Steigman   +14 more
core   +2 more sources

Determining impact angle from the spatial distribution of shock metamorphism: A case study of the Gosses Bluff (Tnorala) impact structure, Australia

Meteoritics &Planetary Science, EarlyView.
Abstract The majority of planetary impacts occur at oblique angles. Impact structures on Earth are commonly eroded or buried, rendering the identification of the direction and angle of impact—using methods such as asymmetries in ejecta distribution, surface topographic expression, central uplift structure, and geophysical anomalies—challenging. In this
Eloise E. Matthews, Auriol S. P. Rae, Thomas Kenkmann, Nicholas E. Timms, Aaron J. Cavosie, Marian B. Holness   +5 more
wiley   +1 more source