12 JAN 2018 by ideonexus

 Neurons Use Viruses to Share Information and Learn

When genes are activated, the instructions encoded within their DNA are first transcribed into a related molecule called RNA. Shepherd’s colleague Elissa Pastuzyn showed that the Arc shells can enclose RNA and move it from one neuron to another. And that’s basically what retroviruses do—they use protein shells to protect their own RNA as it moves between cells in a host. So our neurons use a repurposed viral gene to transmit genetic information between each other in an oddly virus-like...
Folksonomies: dna neurons virus microbiology
Folksonomies: dna neurons virus microbiology
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21 NOV 2017 by ideonexus

 Evolutionary History Through Macro and Micro Observations

Everything in the cosmos has a history. The old dichotomy between the "historical" sciences (like geology, paleontology and evolutionary biology) and the (for want of a better term) "functional" sciences (like physics and chemistry—some would call them the "real sciences") was always supposed to be that fields like physics study dynamic processes and discover immutable laws of interaction among particles composing the cosmos—while the historical sciences study, well, history—the suppose...
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27 MAY 2017 by ideonexus

 Star Trek: The Motion Picture as a Meditation on Cybernetics

Consider for a moment just how many times Star Trek: The Motion Picture lingers upon the important act of a man entering -- or connecting to -- a machine. We watch Kirk's shuttle pod "dock" with Enterprise after a long, lingering examination of the ship. We see Spock, in a thruster suit, "penetrate" -- in his words, "the orifice" leading to the next interior "chamber" of V'Ger. This terminology sounds very biological, doesn't it? Consider that Spock next mentally-joins with V'Ger, utilizing a...
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21 APR 2017 by ideonexus

 Law, Education, Religion are Names We Give to Adaptation

The changes in the conditions of human life during the last twenty or thirty thousand years have been mainly brought about by the acceleration of invention through increasing co-operation and the release of material and social power. There have been no doubt climatic and geographical changes, but their share has been relatively less important. The essential story of history and pre-history is the story of the adaptation of the social- educated superstructure of the animal man to the novel pro...
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10 MAR 2017 by ideonexus

 Intelligent Plant Life

On certain small planets, drenched with light and heat from a near or a great sun, evolution took a very different course from that with which we are familiar. The vegetable and animal functions were not separated into distinct organic types. Every organism was at once animal and vegetable. Many species, of course, developed predatory habits, and special organs of offense, such as muscular boughs as strong as pythons for constriction, or talons, horns, and formidable serrated pincers. In the...
Folksonomies: otherness alien other
Folksonomies: otherness alien other
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