Results 41 to 50 of about 45,975 (280)

Mantle heterogeneity during the formation of the North Atlantic Igneous Province: Constraints from trace element and Sr-Nd-Os-O isotope systematics of Baffin Island picrites [PDF]

, 2004
Sr-Nd-Os-O isotope and major and trace element data from ~62 Ma picrites from Baffin Island constrain the composition of mantle sources sampled at the inception of North Atlantic Igneous Province (NAIP) magmatism.
Eiler, J., Francis, D., Frei, R., Kent, A. J. R., Stolper, E. M., Woodhead, J.   +5 more
core   +1 more source

Science Potential of a Deep Ocean Antineutrino Observatory [PDF]

, 2006
This paper presents science potential of a deep ocean antineutrino observatory under development at Hawaii. The observatory design allows for relocation from one site to another.
Aharmin, Aliu, Anderson, Apollonio, Araki, Araki, Ashie, Avilez, Bandyopadhyay, Bandyopadhyay, Dye, Dye, Eder, Herndon, Hollenback, Krauss, Learned, Marx, Minakata, Mohapatra, Raghavan, Rothschild, S.T. Dye, Turcotte   +23 more
core   +2 more sources

Proteasome inhibitor, ixazomib prevents topoisomerase‐I degradation and reverses irinotecan resistance in colorectal cancer

Molecular Oncology, EarlyView.
Ixazomib inhibits proteasome‐mediated degradation of topoisomerase I induced by irinotecan, thereby restoring drug sensitivity and promoting tumor cell death in colorectal cancer. Irinotecan, a topoisomerase I (topoI) inhibitor, is widely used for colorectal cancer, but resistance remains a major clinical challenge.
Yuho Ebata, Koji Ando, Hirofumi Hasuda, Koshi Mimori, Elizabeth C. Unan, Siddhartha Pulukuri, Aahana Tiku, Allison Berger, Eiji Oki, Ajit Bharti, Tomoharu Yoshizumi   +10 more
wiley   +1 more source

Identifying Recycled Materials Using Mo Isotopes in Intraplate Alkali Basalts From the Southeastern Margin of Tibetan Plateau

Geochemistry, Geophysics, Geosystems
Mantle heterogeneity in lithology and geochemistry is often attributed to recycled subducted materials. While distinct mantle end‐members are identified by radiogenic isotopes, the specific recycled materials contributing to this heterogeneity remain ...
Dongjing Xu, Yue Qi, Qiang Wang, Jie Li, Derek A. Wyman, Andrew C. Kerr, Xiuzheng Zhang, Peina Guo   +7 more
doaj   +1 more source

Mantle heterogeneity beneath the oceanic crust of forearc basin of Nain ophiolite based on the composition of pyroxenes in harzburgites [PDF]

پترولوژی
IntroductionThe Nain ophiolite in Central Iran has been the subject of numerous petrological investigations, particularly focusing on its ultramafic rocks.
Elahe Safdari, Nargess Shirdashtzadeh
doaj   +1 more source

Impact of Mantle Velocity Uncertainty on Receiver‐Function Imaging of the Transition Zone

Geophysical Research Letters
Seismological estimates of the 400‐km and 670‐km mantle discontinuities (d400 and d670) are crucial for understanding the thermochemical structure and dynamics of the mantle transition zone (MTZ).
Carlos A. M. Chaves, Felipe P. Corral, Jeroen Ritsema   +2 more
doaj   +2 more sources

Trace Element Evidence of Subduction-Modified Mantle Material in South Mid-Atlantic Ridge 18–21°S Upper Mantle

Journal of Marine Science and Engineering, 2023
Mid-ocean ridge basalts (MORBs), produced at mid-ocean ridge where the continents and subduction zones are distant, are the product of partial melting of the upper mantle and their chemical composition can provide information about the mantle itself. The
Tianxiao Ji, Zhigang Zeng
doaj   +1 more source

Geo-neutrinos and Silicate Earth Enrichment of U and Th

, 2010
The terrestrial distribution of U, Th, and K abundances governs the thermal evolution, traces the differentiation, and reflects the bulk composition of the earth.
Abe, Anderson, Apollonio, Araki, Bassin, Batygov, Boyet, Boyet, Burbidge, Chen, Cravens, Djurcic, Dye, Dye, Dziewonski, Enomoto, Fiorentini, Giunti, Gonzalez-Garcia, Grigne, Hochmuth, Jaupart, Javoy, Javoy, Kramers, Krauss, Labrosse, Lyubetskaya, Malavergne, Mantovani, McDonough, McDonough, McNutt, Palme, Perry, Raghavan, Reines, Rothschild, Rudnick, S.T. Dye, Salters, Stevenson, Taylor, Tolich, Tolstikhin, Tolstikhin, Turcotte, van der Hilst, Van Schmus, Wasson, Wheeler, Workman   +51 more
core   +1 more source

Rotationally resolved spectroscopy of (20000) Varuna in the near-infrared [PDF]

, 2014
Models of the escape and retention of volatiles by minor icy objects exclude any presence of volatile ices on the surface of TNOs smaller than ~1000km in diameter at the typical temperature in this region of the solar system, whereas the same models show
Emery, J. P., Licandro, J., Lorenzi, V., Ore, C. M. Dalle, Pinilla-Alonso, N.   +4 more
core   +2 more sources

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source