linkedin post 2016-12-25 07:07:49

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MELT SHAPES. "Here we observe and show theoretically that while the two-dimensional steady melt shapes of ice are bounded by six planes, these planes are not proper facets but instead are rotated 30 degrees from the prism planes of ice. Finally, the transient melting state exposes 12 apparent crystallographic planes thereby differing substantially from the transient growth state." https://lnkd.in/dwdQa8X View in LinkedIn
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linkedin post 2016-12-27 04:59:16

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BIGGER IS MORE FIT. "The origins of both eukaryotes and multicellularity may have been driven by the advantages of larger size (efficient dispersal, exploitation of more or different food sources, producing more offspring, escaping predators, avoidance of the constraints of low Reynolds numbers)." https://lnkd.in/dNEtvR8 View in LinkedIn
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linkedin post 2016-12-25 07:04:25

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SHAPE FORMERS. "It is in the lexicon of crystal growth that the shape of a growing crystal reflects the underlying microscopic architecture. Although it is known that in weakly nonequilibrium conditions the slowest growing orientations ultimately dominate the asymptotic shape, is the same true for melting?" https://lnkd.in/dwdQa8X View in LinkedIn
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linkedin post 2016-12-25 07:00:37

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MACRO REFLECTS MICRO. "Kepler pondered the question of why snow crystals always exhibit a six-fold symmetry. Although he doesn't refer to the atomistic viewpoint, Kepler does speculate that the hexagonal close-packing of spheres may have something to do with the morphology of snow crystals." https://lnkd.in/dmA4BAK View in LinkedIn
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linkedin post 2016-12-26 07:20:19

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MANY EUKARYOTIC MULTICELLULARITY EVENTS. "The data suggest that eukaryotes are monophyletic. Equally uncontroversial is the evidence that many eukaryotic lineages have independently evolved some form of multicellularity. To reflect the ease of this transition, Grosberg & Strathmann characterize multicellularity as a ‘minor major transition’." https://lnkd.in/dNEtvR8 View in LinkedIn
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linkedin post 2016-12-26 07:15:26

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BIG EFFICIENT TOOLKIT. "By their view, the mitochondrial endosymbiosis coupled with the accumulation of mitochondrial genes in the nuclear genome allowed tight regulation of respiration at relatively low cost in terms of genome size. This genetic and bioenergetic complexity allows eukaryotes to then easily evolve complex multicellularity." https://lnkd.in/dNEtvR8 View in LinkedIn
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linkedin post 2016-12-28 05:49:09

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PREVIOUSLY, we looked at the example of E. Coli grown in very controlled conditions for thousands of generations, spontaneously developing the ability to metabolize citrate. Now we look at another example of controlled evolution experiments with the development of multicellularity in yeast. View in LinkedIn
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linkedin post 2016-12-28 05:46:06

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CONFLICT MEDIATION. "Yet by successfully mediating these conflicts, eukaryotes may have paved the way for repeated evolution of multicellularity, which could occur simply by coopting the existing within-cell mechanisms of conflict mediation into between-cell ones." Sounds easy. https://lnkd.in/dNEtvR8 View in LinkedIn
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