Results 41 to 50 of about 1,182 (152)
The Astrophysical JournalA wide variety of scenarios for the origin of life have been proposed, with many influencing the prevalence and distribution of biosignatures across exoplanet populations.
Martin Schlecker +7 more
doaj +1 more source
Simple Ion–Gas Mixtures as a Source of Key Molecules Relevant to Prebiotic Chemistry
Molecules, 2021 Very simple chemistry can result in the rapid and high-yield production of key prebiotic inorganic molecules. The two reactions investigated here involve such simple systems, (a) carbon disulfide (CS2) and acetate (CH3COO¯) and (b) sulfur dioxide (SO2 ...
Samuel Paula +3 more
doaj +1 more source
Opposing consensus science through scholarly practices: The role of claims maintenance
Journal of the Association for Information Science and Technology, Volume 77, Issue 7, Page 891-906, July 2026.Abstract This study examines how three US‐based communities who oppose consensus science produce and disseminate scholarly‐like artifacts: pro‐life activists, Young Earth Creationists, and Anthropogenic Climate Crisis skeptics. Prior research shows that industry‐ or church‐backed advocacy campaigns often generate claims supported by these communities ...
Irene V. Pasquetto +3 more
wiley +1 more source
SISTEMATIC LITERATURE REVIEW : PENGEMBANGAN MEDIA PEMBELAJARAN TEORI ABIOGENESIS SMA KELAS XII [PDF]
, 2022 Teori Biotransisi adalah gagasan pemikiran dan konsekuensi dari uji kewajaran dengan mengarahkan pemeriksaan relatif, dalam meneliti hipotesis awal kehidupan bumi yang disampaikan oleh beberapa peneliti masa lalu, misalnya Abiogenesis, Biogenesis ...
Lestari, Reni Juni +4 more
core +2 more sources
The Informational Substrate of Chemical Evolution: Implications for Abiogenesis
Life, 2019 A key aspect of biological evolution is the capacity of living systems to process information, coded in deoxyribonucleic acid (DNA), and used to direct how the cell works.
Andrés de la Escosura
doaj +1 more source
Molecular basis of Arginine and Lysine DNA sequence-dependent thermo-stability modulation.
PLoS Computational Biology, 2022 We have used a variety of theoretical and experimental techniques to study the role of four basic amino acids-Arginine, Lysine, Ornithine and L-2,4-Diaminobutyric acid-on the structure, flexibility and sequence-dependent stability of DNA.
Benjamin Martin +7 more
doaj +1 more source
Predicting Nitrogen Isotope Fractionation in Nitrate Deposition on Early Mars
Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.Abstract Noachian and early Hesperian Mars were likely warm and wet, with an atmosphere abundant in molecular nitrogen. The recent discovery of nitrate deposits in the Yellowknife Bay mudstones at Gale Crater confirm the existence of nitrogen oxides (NOX) on Noachian Mars. The processes responsible for the production of these nitrates would fractionate
J. Shawcross +4 more
wiley +1 more source
The Chemical Origin of Behavior is Rooted in Abiogenesis
Life, 2012 We describe the initial realization of behavior in the biosphere, which we term behavioral chemistry. If molecules are complex enough to attain a stochastic element to their structural conformation in such as a way as to radically affect their function ...
Niles Lehman +2 more
doaj +1 more source
Surface‐Driven Protocell Formation in Geologically Relevant Early Earth Environment
ChemSystemsChem, Volume 8, Issue 2, March 2026.Illustration of a prebiotic early‐Earth environment showing cell‐like protocells (blue spheres) and other complex organic molecules (pink and green spheres) distributed across terrestrial surfaces and within subsurface niches. Volcanic landscapes and mineral‐rich substrates provide diverse geochemical settings for the assembly and evolution of ...
Pamela Knoll, Silvia Holler
wiley +1 more source
Geobiology, Volume 24, Issue 2, March/April 2026.ABSTRACT Observations of morphology are commonly used to evaluate the biogenicity of terrestrial microfossils and could constitute a crucial line of evidence for extraterrestrial life‐detection missions in the future. However, evaluating the origin of morphological features in the rock record can be problematic because naturally occurring abiotic ...
Solomon Hirsch +3 more
wiley +1 more source