Results 41 to 50 of about 8,687 (242)
Molecules, 2023 Multicomponent reactions (MCRs) have undoubtedly emerged as the most indispensable tool for organic chemists worldwide, finding extensive utility in the synthesis of intricate natural products, heterocyclic molecules with significant bioactivity, and ...
Hua Zhao, Yufen Zhao
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Database of space life investigations and bioinformatics of microbiology in extreme environments
Frontiers in Microbiology, 2022 Biological experiments performed in space crafts like space stations, space shuttles, and recoverable satellites has enabled extensive spaceflight life investigations (SLIs).
Junyong Wang +11 more
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Astrochemistry With the Orbiting Astronomical Satellite for Investigating Stellar Systems
Frontiers in Astronomy and Space Sciences, 2022 Chemistry along the star- and planet-formation sequence regulates how prebiotic building blocks—carriers of the elements CHNOPS—are incorporated into nascent planetesimals and planets.
Jennifer B. Bergner +19 more
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Three-body aggregation of guest molecules as a key step in methane hydrate nucleation and growth
Communications Chemistry, 2022 Gas hydrates have an important role in environmental and astrochemistry, as well as energy materials, but the hydrate nucleation process is not fully understood.
Wenfeng Hu +9 more
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Dust Formation in Astrophysical Environments: The Importance of Kinetics
Frontiers in Astronomy and Space Sciences, 2022 Astronomical observations and analysis of stardust isolated from meteorites have revealed a highly diverse interstellar and circumstellar grain inventory, including a wide range of amorphous materials and crystalline compounds (silicates and carbon ...
A.G.G.M. Tielens, A.G.G.M. Tielens
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Ionize Hard: Interstellar PO+ Detection
Frontiers in Astronomy and Space Sciences, 2022 We report the first detection of the phosphorus monoxide ion (PO+) in the interstellar medium. Our unbiased and very sensitive spectral survey toward the G+0.693–0.027 molecular cloud covers four different rotational transitions of this molecule, two of ...
Víctor M. Rivilla +17 more
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Molecular Precursors of the RNA-World in Space: New Nitriles in the G+0.693−0.027 Molecular Cloud
Frontiers in Astronomy and Space Sciences, 2022 Nitriles play a key role as molecular precursors in prebiotic experiments based on the RNA-world scenario for the origin of life. These chemical compounds could have been partially delivered to the young Earth from extraterrestrial objects, stressing the
Víctor M. Rivilla +15 more
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Constraining chemical networks inAstrochemistry [PDF]
, 2021 Databases of gas and surface chemical reactions are a key tool for scientists working in a wide range of physical sciences. In Astrochemistry, databases of chemical reactions are used as inputs to chemical models to determine the abundances of the interstellar medium.
arxiv +1 more source
Neutral and Ionized Hydrides in Star-forming Regions -- Observations with Herschel/HIFI [PDF]
, 2013 The cosmic abundance of hydrides depends critically on high-energy UV, X-ray, and particle irradiation. Here we study hydrides in star-forming regions where irradiation by the young stellar object can be substantial, and density and temperature can be ...
Benz, Arnold O. +4 more
core +2 more sources
Frontiers in Astronomy and Space Sciences, 2021 The huge variety of planetary systems discovered in recent decades likely depends on the early history of their formation. In this contribution, we introduce the FAUST Large Program which focuses specifically on the early history of solar-like protostars
C. Codella +6 more
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