Results 61 to 70 of about 739 (181)
The Meaning of Technology and Religion in the Context of Teilhard de Chardin’s Theistic Evolution [PDF]
Bogoslovni Vestnik, 2023 One of the first pioneers to try to reconcile the Catholic doctrine of creation, salvation and redemption with the idea of evolution was the French Jesuit Pierre Teilhard de Chardin. He believed that humanity has an important role to play in the further
Borut Pohar
doaj +1 more source
Life, 2017 One of the key steps in the origins of life was the formation of a membrane to separate protocells from their environment. These membranes are proposed to have been formed out of single chain amphiphiles, which are less stable than the dialkyl lipids ...
Sarah Maurer
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The ultraviolet habitable zone of exoplanets [PDF]
, 2023 The dozens of rocky exoplanets discovered in the Circumstellar Habitable Zone (CHZ) currently represent the most suitable places to host life as we know it outside the Solar System. However, the presumed presence of liquid water on the CHZ planets does not guarantee suitable environments for the emergence of life. According to experimental studies, the
arxiv +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
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TESS observations of flares and quasi-periodic pulsations from low mass stars and potential impact on exoplanets [PDF]
, 2021 We have performed a search for flares and Quasi-Periodic Pulsations (QPPs) from low mass M dwarf stars using TESS 2 min cadence data. We find seven stars which show evidence of QPPs. Using Fourier and Empirical Mode Decomposition techniques, we confirm the presence of 11 QPPs in these seven stars with a period between 10.2 and 71.9 min, including an ...
arxiv +1 more source
Prebiotic formation of thioesters via cyclic anhydrides as a key step in the emergence of metabolism. [PDF]
Sci RepThioesters are high-energy derivatives of carboxylic acids that are essential in the functioning of today’s living cells. Their central role argues in favor of their early introduction in the abiotic reaction network which led to the emergence of life on
El Qami A +5 more
europepmc +2 more sources
Frontiers in Astronomy and Space SciencesPreviously, we presented a hypothesis on the Darwinian evolution of liposomes that relies only on natural and ever-present phenomena: solar UV radiation, day/night cycle, gravity, and the formation/release of amphiphiles in aqueous media.
Ben Turner +4 more
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Habitability properties of circumbinary planets [PDF]
The Astronomical Journal, 153, 273 (2017), 2017 It is shown that several habitability conditions (in fact, at least seven such conditions) appear to be fulfilled automatically by circumbinary planets of main-sequence stars (CBP-MS), whereas on Earth these conditions are fulfilled only by chance.
arxiv +1 more source
Abiogenesis: the Carter argument reconsidered
International Journal of Astrobiology, 2022 AbstractThe observation of life on Earth is commonly believed to be uninformative regarding the probability of abiogenesis on other Earth-like planets. This belief is based on the selection effect of our existence. We necessarily had to find ourselves on a planet where abiogenesis occurred, thus nothing can be inferred about the probability of ...
openaire +2 more sources
Natural Radioactivity and Chemical Evolution on the Early Earth: Prebiotic Chemistry and Oxygenation
Molecules, 2022 It is generally recognized that the evolution of the early Earth was affected by an external energy source: radiation from the early Sun. The hypothesis about the important role of natural radioactivity, as a source of internal energy in the evolution of
Boris Ershov
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