Did Meteorites Help Start Life ?
Evidence suggests life on Earth started after meteorites splashed into warm little ponds, PhysOrg, October 2, 2017
https://phys.org/news/2017-10-evidence-life-earth-meteorites-splashed.html
How did Life Start? Meteorites crashing into Darwin's Little Warm Ponds May Have been Trigger, by Megham Bartels, Newsweek.
http://www.newsweek.com/2017/10/27/how-did-life-start-meteorites-crashing-darwins-warm-little-ponds-was-possible-675655.html
The paper is:
Pearce, B.K., Pudritz, R.E., Semenov, D.A. and Henning, T.K., 2017. Origin of the RNA world: The fate of nucleobases in warm little ponds. Proceedings of the National Academy of Sciences, vol. 114 no. 43, pp. 11327-11332
http://www.pnas.org/content/114/43/11327 https://arxiv.org/pdf/1710.00434.pdf
Yours,
Paul H.
Showing posts with label Life. Show all posts
Showing posts with label Life. Show all posts
Monday, 18 December 2017
Wednesday, 31 August 2016
Arctic Gives Clues on Worst Mass Extinction of Life
Arctic Gives Clues on Worst Mass Extinction of Life
Arctic gives clues on worst mass extinction of life
University of Tromso (Universitetet i Tromsø - UiT)
August 24, 2016
https://www.sciencedaily.com/releases/2016/08/160824111100.htm
http://phys.org/news/2016-08-arctic-clues-worst-mass-extinction.html
Grasby, S. E., B. Beauchamp, and J. Knies, 2016, Early Triassic
productivity crises delayed recovery from world’s worst mass
extinction. Geology. vol. 44, no. 9, pp. 779-782 DOI: 10.1130/G38141.1
http://geology.gsapubs.org/content/early/2016/08/05/G38141.1.abstract
ftp://rock.geosociety.org/pub/reposit/2016/2016263.pdf
An interesting, but unrelated paper is;
Hull, P. M., S. A. F. Darroch, and D. H. Erwin, 2015,
Rarity in mass extinctions and the future of ecosystems.
Nature. vol. 528, pp. 345-351.
http://people.earth.yale.edu/sites/default/files/files/Hull/Hulletal_nature_15.pdf
Yours,
Paul H.
Arctic gives clues on worst mass extinction of life
University of Tromso (Universitetet i Tromsø - UiT)
August 24, 2016
https://www.sciencedaily.com/releases/2016/08/160824111100.htm
http://phys.org/news/2016-08-arctic-clues-worst-mass-extinction.html
Grasby, S. E., B. Beauchamp, and J. Knies, 2016, Early Triassic
productivity crises delayed recovery from world’s worst mass
extinction. Geology. vol. 44, no. 9, pp. 779-782 DOI: 10.1130/G38141.1
http://geology.gsapubs.org/content/early/2016/08/05/G38141.1.abstract
ftp://rock.geosociety.org/pub/reposit/2016/2016263.pdf
An interesting, but unrelated paper is;
Hull, P. M., S. A. F. Darroch, and D. H. Erwin, 2015,
Rarity in mass extinctions and the future of ecosystems.
Nature. vol. 528, pp. 345-351.
http://people.earth.yale.edu/sites/default/files/files/Hull/Hulletal_nature_15.pdf
Yours,
Paul H.
Thursday, 16 April 2015
The new science of the origins of life
The new science of the origins of life
Shawn Alan posted to the Meteorite-list on April 9, 2015
http://www.mail-archive.com/meteorite-list@meteoritecentral.com/msg120870.html
"Hello Listers
Enjoy: The new science of the origins of life
http://www.radioaustralia.net.au/international/2015-04-02/the-new-science-of-the-origins-of-life/1434890 "
A recent and quite interesting paper concerning the topic of the origin of life is:
New study hints at spontaneous appearance of primordial DNA, University of Colorado at Boulde
Science Daily, April 7, 2015
http://www.sciencedaily.com/releases/2015/04/150407095635.htm
"The self-organization properties of DNA-like molecular fragments four billion years ago may
have guided their own growth into repeating chemical chains long enough to act as a basis for
primitive life, says a new study."
Fraccia, T. P., G. P. Smith, G. Zanchetta, E. Paraboschi, Y. Yi, D. M. Walba, G. Dieci, N. A.
Clark, and T. Bellini, 2015, Abiotic ligation of DNA oligomers templated by their liquid crystal
ordering. Nature Communications, 2015; 6: 6424 DOI: 10.1038/ncomms7424
http://www.nature.com/ncomms/2015/150310/ncomms7424/full/ncomms7424.html
Yours,
Paul H.
Shawn Alan posted to the Meteorite-list on April 9, 2015
http://www.mail-archive.com/meteorite-list@meteoritecentral.com/msg120870.html
"Hello Listers
Enjoy: The new science of the origins of life
http://www.radioaustralia.net.au/international/2015-04-02/the-new-science-of-the-origins-of-life/1434890 "
A recent and quite interesting paper concerning the topic of the origin of life is:
New study hints at spontaneous appearance of primordial DNA, University of Colorado at Boulde
Science Daily, April 7, 2015
http://www.sciencedaily.com/releases/2015/04/150407095635.htm
"The self-organization properties of DNA-like molecular fragments four billion years ago may
have guided their own growth into repeating chemical chains long enough to act as a basis for
primitive life, says a new study."
Fraccia, T. P., G. P. Smith, G. Zanchetta, E. Paraboschi, Y. Yi, D. M. Walba, G. Dieci, N. A.
Clark, and T. Bellini, 2015, Abiotic ligation of DNA oligomers templated by their liquid crystal
ordering. Nature Communications, 2015; 6: 6424 DOI: 10.1038/ncomms7424
http://www.nature.com/ncomms/2015/150310/ncomms7424/full/ncomms7424.html
Yours,
Paul H.
Saturday, 30 November 2013
Ancient Minerals: Which Gave Rise to Life?
Ancient Minerals: Which Gave Rise to Life?
Ancient Minerals: Which Gave Rise to Life?
Science Dailey, Nov. 25, 2013
http://www.sciencedaily.com/releases/2013/11/131125164814.htm
Hazen, R. M., 2013, Paleomineralogy of the
Hadean Eon: A preliminary species list. American
Journal of Science, 313 (9): 807 DOI: 10.2475/09.2013.01
http://www.ajsonline.org/content/313/9/807
Also there is:
Fool's Gold Gives Scientists Priceless Insight
Into Earth's Evolution, Science Daily, July 23, 2011
http://www.sciencedaily.com/releases/2011/07/110722132823.htm
Guilbaud, R., I. B. Butler, and R. M. Ellam, 2013,
Abiotic Pyrite Formation Produces a Large Fe
Isotope Fractionation. Science. vol. 332, no. 6037
pp. 1548-1551 DOI: 10.1126/science.1202924
http://www.sciencemag.org/content/332/6037/1548
And finally there is:
Darling, J. R., D. E. Moser L. M. Heaman, W. J. Davis,
J. O'Neil and R. Carlson, 2013, Eoarchean to Neoarchean
evolution of the Nuvvuagittuq Supracrustal belt: New
insights from U-Pb zircon geochronology. vol. 313,
no. 9, pp. 844-876 doi: 10.2475/09.2013.02 AJS
http://www.ajsonline.org/content/313/9/844.abstract
Yours,
Paul H.
Ancient Minerals: Which Gave Rise to Life?
Science Dailey, Nov. 25, 2013
http://www.sciencedaily.com/releases/2013/11/131125164814.htm
Hazen, R. M., 2013, Paleomineralogy of the
Hadean Eon: A preliminary species list. American
Journal of Science, 313 (9): 807 DOI: 10.2475/09.2013.01
http://www.ajsonline.org/content/313/9/807
Also there is:
Fool's Gold Gives Scientists Priceless Insight
Into Earth's Evolution, Science Daily, July 23, 2011
http://www.sciencedaily.com/releases/2011/07/110722132823.htm
Guilbaud, R., I. B. Butler, and R. M. Ellam, 2013,
Abiotic Pyrite Formation Produces a Large Fe
Isotope Fractionation. Science. vol. 332, no. 6037
pp. 1548-1551 DOI: 10.1126/science.1202924
http://www.sciencemag.org/content/332/6037/1548
And finally there is:
Darling, J. R., D. E. Moser L. M. Heaman, W. J. Davis,
J. O'Neil and R. Carlson, 2013, Eoarchean to Neoarchean
evolution of the Nuvvuagittuq Supracrustal belt: New
insights from U-Pb zircon geochronology. vol. 313,
no. 9, pp. 844-876 doi: 10.2475/09.2013.02 AJS
http://www.ajsonline.org/content/313/9/844.abstract
Yours,
Paul H.
Monday, 23 September 2013
Cascade of Events' Caused Cambrian Explosion
Cascade of Events' Caused Cambrian Explosion
Cascade of Events' Caused Sudden Explosion of
Animal Life, Science Daily, September 19, 2013
http://www.sciencedaily.com/releases/2013/09/130919142202.htm
New Approach to Explaining Evolution's Big Bang
In-Depth, New York Times, September 19, 2013
http://www.nytimes.com/2013/09/20/science/new-approach-to-explaining-evolutions-big-bang.html
The paper is:
M. Paul Smith and David A. T. Harper. Causes of the
Cambrian Explosion. Science, 20 September 2013:
1355-1356 DOI: 10.1126/science.1239450
http://www.sciencemag.org/content/341/6152/1355
Related articles are:
Cambrian explosion was indeed marked by lightning-
fast evolution, NBCNews.com-by Tia Ghose
http://www.sciencemag.org/content/341/6152/1355
and an earlier paper about the Cambrian Explosion:
Peters, S. E., and R. R. Gaines. Formation of the ‘Great
Unconformity’ as a trigger for the Cambrian explosion.
Nature. vol. 484, no. 7394pp. 363-366.
Abstract is at:
http://www.nature.com/nature/journal/v484/n7394/full/nature10969.html
PDF file is at
http://211.144.68.84:9998/91keshi/Public/File/34/484-7394/pdf/nature10969.pdf
While Googling, I accidentally found the above paper is cited by:
Koschwanez, K. H., K. R Foster, and A. W Murray, 2013,
Improved use of a public good selects for the evolution of
undifferentiated multicellularity. eLife 2013;2:e00367.
http://labs.mcb.harvard.edu/murray/publications/Koschwanez_2013_23577233.pdf
Yours,
Paul H.
Cascade of Events' Caused Sudden Explosion of
Animal Life, Science Daily, September 19, 2013
http://www.sciencedaily.com/releases/2013/09/130919142202.htm
New Approach to Explaining Evolution's Big Bang
In-Depth, New York Times, September 19, 2013
http://www.nytimes.com/2013/09/20/science/new-approach-to-explaining-evolutions-big-bang.html
The paper is:
M. Paul Smith and David A. T. Harper. Causes of the
Cambrian Explosion. Science, 20 September 2013:
1355-1356 DOI: 10.1126/science.1239450
http://www.sciencemag.org/content/341/6152/1355
Related articles are:
Cambrian explosion was indeed marked by lightning-
fast evolution, NBCNews.com-by Tia Ghose
http://www.sciencemag.org/content/341/6152/1355
and an earlier paper about the Cambrian Explosion:
Peters, S. E., and R. R. Gaines. Formation of the ‘Great
Unconformity’ as a trigger for the Cambrian explosion.
Nature. vol. 484, no. 7394pp. 363-366.
Abstract is at:
http://www.nature.com/nature/journal/v484/n7394/full/nature10969.html
PDF file is at
http://211.144.68.84:9998/91keshi/Public/File/34/484-7394/pdf/nature10969.pdf
While Googling, I accidentally found the above paper is cited by:
Koschwanez, K. H., K. R Foster, and A. W Murray, 2013,
Improved use of a public good selects for the evolution of
undifferentiated multicellularity. eLife 2013;2:e00367.
http://labs.mcb.harvard.edu/murray/publications/Koschwanez_2013_23577233.pdf
Yours,
Paul H.
Monday, 8 April 2013
Life Might Have Emerged On Earth In Saline Environments
Life Might Have Emerged On Earth In Saline Environments
How Life May Have First Emerged On Earth: Foldable
Proteins in a High-Salt Environment, Science Daily
http://www.sciencedaily.com/releases/2013/04/130405064027.htm
and http://esciencenews.com/articles/2013/04/05/researcher.offers.clues.origins.life
The paper is:
Longo, L. M., and J. Lee, M. Blaber. Simplified protein design
biased for prebiotic amino acids yields a foldable, halophilic
protein. Proceedings of the National Academy of Sciences.
vol. 110, no. 6, pp. 2135-2139. DOI: 10.1073/pnas.1219530110
http://www.pnas.org/content/110/6/2135
Yours,
Paul H.
How Life May Have First Emerged On Earth: Foldable
Proteins in a High-Salt Environment, Science Daily
http://www.sciencedaily.com/releases/2013/04/130405064027.htm
and http://esciencenews.com/articles/2013/04/05/researcher.offers.clues.origins.life
The paper is:
Longo, L. M., and J. Lee, M. Blaber. Simplified protein design
biased for prebiotic amino acids yields a foldable, halophilic
protein. Proceedings of the National Academy of Sciences.
vol. 110, no. 6, pp. 2135-2139. DOI: 10.1073/pnas.1219530110
http://www.pnas.org/content/110/6/2135
Yours,
Paul H.
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