Results 21 to 30 of about 3,089 (177)
Formalising the Pathways to Life Using Assembly Spaces
Entropy, 2022 Assembly theory (referred to in prior works as pathway assembly) has been developed to explore the extrinsic information required to distinguish a given object from a random ensemble. In prior work, we explored the key concepts relating to deconstructing
Stuart M. Marshall +4 more
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HOW VENUS BECAME COOL: SOCIAL AND MORAL DIMENSIONS OF BIOSIGNATURE SCIENCE
Zygon, 2021 A 2020 scientific report indicated the presence of phosphine, a potential biosignature chemical, in the atmosphere of Venus. As a result, Venus instantly became a global cultural celebrity.
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Ammonia and Phosphine in the Clouds of Venus as Potentially Biological Anomalies
Aerospace, 2022 We are of the opinion that several anomalies in the atmosphere of Venus provide evidence of yet-unknown processes and systems that are out of equilibrium.
Carol E. Cleland, Paul B. Rimmer
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A Statistical Approach to Illustrate the Challenge of Astrobiology for Public Outreach
Life, 2017 In this study, we attempt to illustrate the competition that constitutes the main challenge of astrobiology, namely the competition between the probability of extraterrestrial life and its detectability.
Frédéric Foucher +3 more
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Life, 2018 The acidic sulfate-rich waters of the Meridiani Planum region were potentially a habitable environment for iron-oxidizing bacteria on ancient Mars. If life existed in this ancient martian environment, jarosite minerals precipitating in these waters may ...
Liane Loiselle +5 more
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Biosignatures Associated with Freshwater Microbialites [PDF]
Life, 2020 Freshwater microbialites (i.e., lithifying microbial mats) are quite rare in northern latitudes of the North American continent, with two lakes (Pavilion and Kelly Lakes) of southeastern BC containing a morphological variety of such structures. We investigated Kelly Lake microbialites using carbon isotope systematics, phospholipid fatty acids (PLFAs ...
Richard Allen White +5 more
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Life, 2021 Searching for life in the Universe depends on unambiguously distinguishing biological features from background signals, which could take the form of chemical, morphological, or spectral signatures.
Nicholas Guttenberg +3 more
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A review of exoplanetary biosignatures [PDF]
Physics Reports, 2017 We review the field of exoplanetary biosignatures with a main focus upon atmospheric gas-phase species. Due to the paucity of data in Earth-like planetary atmospheres a common approach is to extrapolate knowledge from the Solar System and Early Earth to Earth-like exoplanets. We therefore review the main processes (e.g.
openaire +2 more sources
PLoS ONE, 2014 Identifying patients with Mild Cognitive Impairment (MCI) who are likely to convert to dementia has recently attracted increasing attention in Alzheimer's disease (AD) research.
Han Li +5 more
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A Plasma 5-Marker Host Biosignature Identifies Tuberculosis in High and Low Endemic Countries
Frontiers in Immunology, 2021 Background: Several host inflammatory markers have been proposed as biomarkers for diagnosis and treatment response in Tuberculosis (TB), but few studies compare their utility in different demographic, ethnic, and TB endemic settings.Methods: Fifty-four ...
Bih H. Chendi +10 more
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