Results 21 to 30 of about 1,182 (152)
Did Homocysteine Take Part in the Start of the Synthesis of Peptides on the Early Earth?
Biomolecules, 2022 Unlike its shorter analog, cysteine, and its methylated derivative, methionine, homocysteine is not today a proteinogenic amino acid. However, this thiol containing amino acid is capable of forming an activated species intramolecularly.
Sparta Youssef-Saliba +2 more
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Life, 2019 The alkaline-hydrothermal-vent theory for the origin of life predicts the spontaneous reduction of CO2, dissolved in acidic ocean waters, with H2 from the alkaline vent effluent.
Victor Sojo +4 more
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Synthesis and Characterization of Amino Acid Decyl Esters as Early Membranes for the Origins of Life
Membranes, 2022 Understanding how membrane forming amphiphiles are synthesized and aggregate in prebiotic settings is required for understanding the origins of life on Earth 4 billion years ago.
Isabella Lago +3 more
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The origin of life: what we know, what we can know and what we will never know [PDF]
Open Biology, 2013 The origin of life (OOL) problem remains one of the more challenging scientific questions of all time. In this essay, we propose that following recent experimental and theoretical advances in systems chemistry, the underlying principle governing the ...
Addy Pross, Robert Pascal
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Biblical Perspectives as a Guide to Research on Life’s Origin and History
Religions, 2023 The more than thirty spacetime theorems developed over the past five decades establish that the universe and its spacetime dimensions have emerged from a cause/causal agent beyond the cosmos.
Hugh Norman Ross
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Straightforward Creation of Possibly Prebiotic Complex Mixtures of Thiol-Rich Peptides
Life, 2023 At the origin of life, extremely diverse mixtures of oligomers and polymers could be obtained from relatively simple molecular bricks. Here, we present an example of the polymerization of two amidonitriles derived from cysteine, Cys-Ala-CN and Cys-Met-CN.
Ibrahim Shalayel +3 more
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A Statistical Estimation of the Occurrence of Extraterrestrial Intelligence in the Milky Way Galaxy
Galaxies, 2021 In the field of astrobiology, the precise location, prevalence, and age of potential extraterrestrial intelligence (ETI) have not been explicitly explored.
Xiang Cai +3 more
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Fluid-Deposition of Rocks is Natural Model for Additive Production [PDF]
Interdisciplinary Description of Complex Systems, 2017 All created in the Nature is the result of natural technology. Solutions from Nature can be incentive for artificial, man's technology of living (biotechnology) and technology of abiogenesis.
Igor Čatić +4 more
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Evolution of Realistic Organic Mixtures for the Origins of Life through Wet–Dry Cycling
Sci, 2022 One of the challenges in understanding chemical evolution is the large number of starting organics and environments that were plausible on early Earth. Starting with realistic organic mixtures and using chemical analyses that are not biologically biased,
Kiernan Foster +4 more
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