Results 141 to 150 of about 322,202 (327)

Modeling enstatite chondrites: Reduced rocks with a pinch of oxidized material (affected by varying H2O(g)) derived from planetesimals shocked during the epoch of giant–planet migration

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The O‐, N‐, Mo‐, Ru‐, Os‐, Cr‐, Ti‐, Ni‐, Fe‐, Nd‐, Ca‐, Zn‐, Sr‐, and Mg‐isotopic compositions of enstatite chondrites are essentially identical to those of the Earth and Moon. These correspondences suggest enstatite chondrites formed at ≈1 AU as the only known chondrite groups that accreted in the vicinity of a major planet. Bulk Earth has a
Alan E. Rubin
wiley   +1 more source

The rate of volcanism on Venus [PDF]

open access: yes
The maintenance of the global H2SO4 clouds on Venus requires volcanism to replenish the atmospheric SO2 which is continually being removed from the atmosphere by reaction with calcium minerals on the surface of Venus. The first laboratory measurements of
Fegley, Bruce, Jr., Prinn, Ronald G.
core   +1 more source

The polysemy of “I”

open access: yesMind &Language, EarlyView.
Orthodoxy assumes that the first‐person thoughts of an individual are anchored to a stable object. I challenge this assumption by arguing that “I” is polysemous. The perspectival anchor of a first‐person thought could be the bearer of the thought, the agent, the bearer of perception, or a body, to name just a few options.
Susanna Schellenberg
wiley   +1 more source

A Wind-powered Rover for a Low-Cost Venus Mission [PDF]

open access: green, 2013
Geoffrey A. Landis   +4 more
openalex   +1 more source

Deuterium on Venus: Observations from Earth [PDF]

open access: yes
In view of the importance of the deuterium-to-hydrogen ratio in understanding the evolutionary scenario of planetary atmospheres and its relationship to understanding the evolution of our own Earth, we undertook a series of observations designed to ...
Bezard, B.   +5 more
core   +1 more source

Comparative Transcriptomic Analysis of Human Macrophages During Mycobacterium avium Versus Mycobacterium tuberculosis Infection

open access: yesMolecular Microbiology, EarlyView.
Human macrophage transcriptomic responses to Mycobacterium avium (Mav), a major cause of nontuberculous lung disease, were compared to Mycobacterium tuberculosis (Mtb). Both infections activated overlapping immune pathways, including cytokine signaling and GPCRs involved in lipid metabolism, while phospholipases were more strongly regulated by Mav and ...
Gül Kilinç   +4 more
wiley   +1 more source

Applications of a Venus thermospheric circulation model [PDF]

open access: yes
A variety of Pioneer Venus observations suggest a global scale, day-to-night Venus thermospheric circulation. Model studies of the dynamics and energetics of the Venus thermosphere are presented in order to address new driving, mixing and cooling ...
Bougher, S. W.   +3 more
core   +1 more source

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