Results 31 to 40 of about 2,118 (196)

The Sorites Paradox, “Life,” and Abiogenesis [PDF]

open access: hybridEvolution: Education and Outreach, 2012
Abstract The ancient Greek philosopher Eubulides of Miletus drew attention to the impossibility of defining a point of transition between two states or conditions at opposite ends of a continuum. The ensuing “drawing the line” conundrum—the sorites paradox—arises from the vague predicates which humans use to convey concepts. It is argued that
Barend Vlaardingerbroek
openalex   +3 more sources

Elements of life: The role of phosphorus in abiogenesis [PDF]

open access: goldThe Biochemist, 2014
The element phosphorus performs several key roles in modern-day biochemistry. These include acting as a store of chemical energy in phosphate anhydride bonds such as ATP, linking together nucleosides as part of DNA and RNA, and separating cells from the outside environment as phospholipid membranes.
Matthew A. Pasek
openalex   +3 more sources

Abiogenesis in Upper Secondary Biology Curricula [PDF]

open access: hybridEvolution: Education and Outreach, 2010
Biological evolution and abiogenesis are distinct branches of science, although they are closely related in the context of a holistic evolutionary conceptual framework. The relationship between evolution and abiogenesis furnishes profound insights into the nature of science, a much emphasised aspect of modern science education.
Barend Vlaardingerbroek
openalex   +3 more sources

Functional basis of primary succession: Traits of the pioneer microbes. [PDF]

open access: yesEnviron Microbiol, 2023
Environmental Microbiology, Volume 25, Issue 1, Page 171-176, January 2023.
Ni G   +5 more
europepmc   +2 more sources

The “Odd Inches”: Moby-Dick’s Fossil Record and Melville’s Admeasured Time

open access: yesMiranda: Revue Pluridisciplinaire du Monde Anglophone, 2022
This paper considers the measurements of fossils and markers of geologic time as they appear throughout Moby-Dick, complicating histories of bodies and their remainders. Looking for instances where Ishmael’s measurements fall short or fail to include the
Ryan Heryford
doaj   +1 more source

A Corollary of the Conant-Ashby Theorem Applied to Abiogenesis

open access: bronzeCommunications of the Blyth Institute, 2021
From the Conant-Ashby theorem about the "good regulator" is possible to derive a corollary about the origin of life (OOL). This corollary introduces the concept of "good constructor." Thenit is shown as nature, seen as a material system ruled by the laws of physics, cannot be a "good constructor" of the basic machinery necessary for a living cell. As a
Eugenio Darbesio
openalex   +3 more sources

Xeno Amino Acids: A Look into Biochemistry as We Do Not Know It

open access: yesLife, 2023
Would another origin of life resemble Earth’s biochemical use of amino acids? Here, we review current knowledge at three levels: (1) Could other classes of chemical structure serve as building blocks for biopolymer structure and catalysis?
Sean M. Brown   +2 more
doaj   +1 more source

Beyond Mediocrity: How Common is Life? [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, Volume 522, Issue 2, June 2023, Pages 3117-3123, 2023
The probability that life spontaneously emerges in a suitable environment (abiogenesis) is one of the major unknowns in astrobiology. Assessing its value is impeded by the lack of an accepted theory for the origin of life, and is further complicated by the existence of selection biases.
arxiv   +1 more source

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