evolution – Page 16 – My WordPress Site

Dynamical Systems At Work on Earth -- Grok via Astrobiology.com

Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Extinction events, Gaia - Planetary Perspectives, Habitable Zones, Origin & Evolution of Life

A Dynamical Systems Perspective On The Celestial Mechanical Contribution To The Emergence Of Life

by Keith CowingNovember 4, 2024November 4, 2024

A habitable world -- Grok via Astrobiology.com

Astrogeology, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Gaia - Planetary Perspectives, Habitable Zones, Origin & Evolution of Life

Building and Maintaining a Habitable World and the Early Conditions that Could Favor Life’s Beginnings on Earth and Beyond

by Keith CowingNovember 1, 2024

Artistic rendering of what scientists believe Quaestio simpsonorum looked like. Artwork by Walker Weyland.

Astrogeology, Away Teams & Field Reports, Biosignatures & Paleobiology, Exploration Gear & Tech, Fossils & Paleontology, Origin & Evolution of Life

One Of Earth’s Earliest Animals Discovered In The Australian Outback

by Keith CowingOctober 15, 2024October 15, 2024

A surface geology map of the proposed Massive Australian Precambrian-Cambrian Impact Structure. (Provided by Daniel Connelly) Larger image

Astrogeology, Caves, Craters, Mountains & Lava Tubes, Extinction events, Fossils & Paleontology, Impact events

Australian Crater Could Offer Fresh Insight Into Earth’s Geological History

by Keith CowingOctober 14, 2024October 14, 2024

256 Elementary Cellular automaton rules (source) -- wikipedia

Genomics, Proteomics, Bioinformatics, Nanotechnology & SynBio, Origin & Evolution of Life

Survival and Evolutionary Adaptation of Populations Under Disruptive Habitat Change: A Study With Darwinian Cellular Automation

by Keith CowingOctober 14, 2024October 14, 2024

Secondary structure content in coenzyme binding sites. Composition of secondary structural elements in amino acids interacting with coenzymes. The PDB category represents secondary structure content across the dataset for comparison with coenzyme binding sites. Additional statistical analyses are shown in Supplementary Table 10. -- biorxiv.org

Astrochemistry, Biochemistry & Organic Chemistry, Genomics, Proteomics, Bioinformatics, Origin & Evolution of Life

Coenzyme-Protein Interactions Since Early Life

by Keith CowingOctober 3, 2024October 3, 2024

Graphical abstract -- Nucleic Acids Research

Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Fossils & Paleontology, Genomics, Proteomics, Bioinformatics, Origin & Evolution of Life

New Study Sheds Light on Ancient Protoribosome and its Role in Early Life Evolution

by Keith CowingOctober 2, 2024October 2, 2024

Protocell -- PubMed

Astrochemistry, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Genomics, Proteomics, Bioinformatics, Origin & Evolution of Life

Protocell Effects on RNA Folding, Function, and Evolution

by Keith CowingSeptember 26, 2024September 26, 2024

Illustration of the general methodology. "Sorg" is for "organosulfur gases," "GC" is for "gas chromatograph," and "SCD" is for "sulfur chemiluminescence detection." -- University of Colorado Boulder

Astrochemistry, Astropharmacy / Biotechnology, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Genomics, Proteomics, Bioinformatics, Nanotechnology & SynBio, Origin & Evolution of Life

Potential Indicators Of Life On Other Planets Can Be Created In A Lab

by Keith CowingSeptember 25, 2024

Topological alteration of a state graph. a) A system being coarse-grained and receiving arbitrary labels from an external observer. The example macrostate (u) labels are vectors of three binary-valued microstate variables denoted (v1, v2, v3). Panels b to d display the topologies of the physicallyreachable state graph after constraining a variable of the labeling vector. The nodes and edges that became inaccessible as a consequence of applying a conservation law are displayed with lighter colors. The top row corresponds to setting value 0, while the bottom row corresponds to setting the variable to 1. b) Constraining variable v1. On the one hand (b.1), a conservation law for v1 = 0 leads the system to state u1. On the other hand (b.2), with v1 = 1, the system cannot escape from u2. c) Constraining variable v1. In the case v1 = 1 in c.2), the graph is restricted to u3 and has no possible transitions. The node does exist under a conservation law setting v1 to 1 but there is no way to reach this node due to the topology of the unconstrained graph. d) Constraining variable v3. This variable is constant and equal to 1 in the unconstrained graph in a), so a conservation law setting v3 = 0 such as in panel d.1 is meaningless for this case. -- physics.bio-ph

Biophysics, Biosignatures & Paleobiology, Nanotechnology & SynBio, Origin & Evolution of Life

An Open-Ended Approach to Understanding Local, Emergent Conservation Laws in Biological Evolution

by Keith CowingSeptember 24, 2024September 24, 2024