All posts; Tags Include "Evolutionary Anthropology"
- September 18, 2013
- 04:57 AM
- 1,287 views
New insights solve 300-year-old problem: the dynamics of the Earth’s core
by Perikis Livas in Chilon
Scientists at the University of Leeds have solved a 300-year-old riddle about which direction the centre of the Earth spins.... Read more »
Livermore PW, Hollerbach R, & Jackson A. (2013) Electromagnetically driven westward drift and inner-core superrotation in Earth's core. Proceedings of the National Academy of Sciences of the United States of America. PMID: 24043841
- September 17, 2013
- 12:37 PM
- 840 views
THE NEW FACE OF FEYNMAN DIAGRAMS?
by Perikis Livas in Chilon
A team of researchers that includes Perimeter Faculty member Freddy Cachazo has invented a new system for calculating what happens when particles interact – a result likely to have wide implications for physics and mathematics.... Read more »
Perimeter Institute for Theoretical Physics. (2013) THE NEW FACE OF FEYNMAN DIAGRAMS?. Perimeter Institute for Theoretical Physics. info:/
- September 17, 2013
- 11:43 AM
- 765 views
Physics: Quantum quest
by Perikis Livas in Chilon
Physicists have spent a century puzzling over the paradoxes of quantum theory. Now a few of them are trying to reinvent it.... Read more »
Philip Ball. (2013) Physics: Quantum quest. Nature. DOI: 10.1038/501154a
- September 17, 2013
- 06:38 AM
- 1,406 views
Scientists discover cosmic factory for making building blocks of life
by Perikis Livas in Chilon
Scientists have discovered a ‘cosmic factory’ for producing the building blocks of life, amino acids, according to research.
( further readind and links at TK's page )... Read more »
Zita Martins, Mark C. Price, Nir Goldman, Mark A. Sephton, & Mark J. Burchell. (2013) Shock synthesis of amino acids from impacting cometary and icy planet surface analogues. Nature Geoscience. DOI: 10.1038/ngeo1930
- September 16, 2013
- 06:15 AM
- 783 views
Biologists measure evolution’s Big Bang
by Perikis Livas in Chilon
A new study led by Adelaide researchers has estimated, for the first time, the rates of evolution during the “Cambrian explosion” when most modern animal groups appeared between 540 and 520 million years ago.... Read more »
The University of Adelaide. (2013) Biologists measure evolution's Big Bang. The University of Adelaide. DOI: 10.1016/j.cub.2013.07.055
- September 15, 2013
- 04:25 PM
- 711 views
New findings from UNC School of Medicine challenge assumptions about origins of life
by Perikis Livas in Chilon
Before there was life on Earth, there were molecules. A primordial soup. At some point a few specialized molecules began replicating. This self-replication, scientists agree, kick-started a biochemical process that would lead to the first organisms. But exactly how that happened — how those molecules began replicating — has been one of science’s enduring mysteries.... Read more »
Tom Hughes. (2013) New findings from UNC School of Medicine challenge assumptions about origins of life. University of North Carolina at Chapel Hill School of Medicine. DOI: 10.1074/jbc.M113.496125
- September 12, 2013
- 09:56 AM
- 702 views
Venter Institute-Led Team Uncovers Unique Microbial Diversity in The Cedars, Rare, High pH, Ultra reducing, Low Salinity Springs in Northern California
by Perikis Livas in Chilon
Microbes found in these low life sustaining environments could elucidate origins of life on Earth... Read more »
Suzuki S, Ishii S, Wu A, Cheung A, Tenney A, Wanger G, Kuenen JG, & Nealson KH. (2013) Microbial diversity in The Cedars, an ultrabasic, ultrareducing, and low salinity serpentinizing ecosystem. Proceedings of the National Academy of Sciences of the United States of America. PMID: 24003156
- September 11, 2013
- 04:00 PM
- 1,593 views
Complete mtDNA genomes of Filipinos reveal recent and ancient lineages
by nath in Imprints of Philippine Science
The plot thickens! It still fascinates me how regions of the earth have been reached and populated by humans. Particularly, I …Continue reading »... Read more »
Pugach I, Delfin F, Gunnarsdóttir E, Kayser M, & Stoneking M. (2013) Genome-wide data substantiate Holocene gene flow from India to Australia. Proceedings of the National Academy of Sciences of the United States of America, 110(5), 1803-8. PMID: 23319617
- September 10, 2013
- 09:24 AM
- 799 views
The biochemistry of memory
by Perikis Livas in Chilon
Almost fifty years ago, Julius Adler initiated a program of research to gain insights into the basic biochemistry of intelligent behavior by studying the molecular mechanisms that underlie the chemotactic responses of Escherichia coli. All living organisms share elements of a common biochemistry for metabolism, growth and heredity — why not intelligence? ... Read more »
Jeffry B.Stock, & Sherry Zhang. (2013) The biochemistry of memory. Cell Press Current Biology. info:/10.1016/j.cub.2013.08.011
- September 10, 2013
- 07:48 AM
- 733 views
A biological perspective on memory
by Perikis Livas in Chilon
Memory enables information to be stored and retrieved after seconds to years and is essential for daily life. This issue of Current Biology takes a broad look at the biology of memory.... Read more »
Jonathon D. Crystal, & David L. Glanzman. (2013) A biological perspective on memory. Cell Press Current Biology. DOI: 10.1016/j.cub.2013.07.082
- September 10, 2013
- 06:06 AM
- 663 views
Cultural memory
by Perikis Livas in Chilon
Humans have a form of externalised memory. They are able to transmit information across generations in the form of learned cultural traditions and preserve this knowledge in artefacts. How this capability evolved from the simpler traditions of other animals is an active area of research.... Read more »
Kevin N. Laland, & Luke Rendell. (2013) Cultural memory. Cell Press Current Biology. DOI: 10.1016/j.cub.2013.07.071
- September 9, 2013
- 07:31 AM
- 754 views
Looking for the self in pathological unconsciousness
by Perikis Livas in Chilon
There is an intimate relationship between consciousness and the notion of self. By studying patients with disorders of consciousness, we are offered with a unique lesion approach to tackle the neural correlates of self in the absence of subjective reports. Studies employing neuroimaging techniques point to the critical involvement of midline anterior and posterior cortices in response to the passive presentation of self-referential stimuli, such as the patient’s own name and own face. ... Read more »
Athena Demertzi, Audrey Vanhaudenhuyse, Serge Brédart, Lizette Heine, Carol di Perri, & Steven Laureys1. (2013) Looking for the self in pathological unconsciousness. Frontiers in Human Neuroscience. DOI: 10.3389/fnhum.2013.00538
- September 7, 2013
- 07:57 AM
- 795 views
The biggest microscope
by Perikis Livas in Chilon
Fermions and bosons. Mesons and baryons. Electrons and protons. Researchers of the subatomic world must know the identity and understand the behavior of dozens of different kinds of particles. However, not all particles are equal. While all are interesting in their own ways, certain ones have a more widespread utility. One such particle is the muon.... Read more »
Don Lincoln. (2013) The biggest microscope. Fermilab Today. DOI: arXiv:1306.6905v1
- September 6, 2013
- 05:49 PM
- 893 views
A philosophical perspective on the relation between cortical midline structures and the self
by Perikis Livas in Chilon
In recent years there has been increasing evidence that an area in the brain called the cortical midline structures (CMSs) is implicated in what has been termed self-related processing. This article will discuss recent evidence for the relation between CMS and self-consciousness in light of several important philosophical distinctions.
(further reading and links at TK's page)... Read more »
Kristina Musholt. (2013) A philosophical perspective on the relation between cortical midline structures and the self. Frontiers in Human Neuroscience. DOI: 10.3389/fnhum.2013.00536
- September 6, 2013
- 12:36 PM
- 658 views
Next generation cures born from the sea
by Perikis Livas in Chilon
Tackling the risks of infection and other illnesses remains a challenge. Might the solution come from the sea?... Read more »
Martin Ince. (2013) Next generation cures born from the sea. youris.com. info:/
- September 6, 2013
- 11:23 AM
- 746 views
Can matter cycle through shapes eternally?
by Perikis Livas in Chilon
‘Time crystals’ idea is challenged but its proponent doubles down.... Read more »
Devin Powell. (2013) Can matter cycle through shapes eternally?. Nature. DOI: 10.1038/nature.2013.13657
- September 6, 2013
- 08:50 AM
- 693 views
Look at What I’m Saying
by Perikis Livas in Chilon
University of Utah bioengineers discovered our understanding of language may depend more heavily on vision than previously thought: under the right conditions, what you see can override what you hear.... Read more »
The University of Utah News Center. (2013) Look at What I’m Saying. PLoS ONE. DOI: 10.1371/journal.pone.0073148
- September 5, 2013
- 04:49 AM
- 849 views
Quantum steps towards the Big Bang
by Perikis Livas in Chilon
Present-day physics cannot describe what happened in the Big Bang. Quantum theory and the theory of relativity fail in this almost infinitely dense and hot primal state of the universe. Only an all-encompassing theory of quantum gravity which unifies these two fundamental pillars of physics could provide an insight into how the universe began. Scientists from the Max Planck Institute for Gravitational Physics (Albert Einstein Institute) in Golm/Potsdam and the Perimeter Institute in Canada have ........ Read more »
MAX-PLANCK-GESELLSCHAFT. (2013) Quantum steps towards the Big Bang. MAX-PLANCK-GESELLSCHAFT. DOI: 10.1103/PhysRevLett.111.031301
- September 4, 2013
- 03:58 PM
- 827 views
Ultracold Big Bang experiment successfully simulates evolution of early universe
by Perikis Livas in Chilon
Physicists have reproduced a pattern resembling the cosmic microwave background radiation in a laboratory simulation of the Big Bang, using ultracold cesium atoms in a vacuum chamber at the University of Chicago.... Read more »
Steve Koppes. (2013) Ultracold Big Bang experiment successfully simulates evolution of early universe. University of Chicago News. DOI: 10.1126/science.1237557
- September 4, 2013
- 01:38 PM
- 695 views
Aging really is ‘in your head’
by Perikis Livas in Chilon
Scientists answer hotly debated questions about how calorie restriction delays aging process
(further reading and links at TK's page)... Read more »
Lee Phillion. (2013) Aging really is ‘in your head’. University of Washington in St.Louis. DOI: 10.1016/j.cmet.2013.07.013
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