منابع مشابه
Microbiome Data Science: Understanding Our Microbial Planet.
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Meaningful motion is an unambiguous biosignature, but because life in the Solar System is most likely to be microbial, the question is whether such motion may be detected effectively on the micrometer scale. Recent results on microbial motility in various Earth environments have provided insight into the physics and biology that determine whether and how microorganisms as small as bacteria and ...
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At the onset of contemporary environmental awareness in the early 80s of last century, frequent triggers of public alarm included the spills of xenobiotic chemicals, the accidents of petroleum tankers and the bad quality of air and water that could be traced to unchecked industrial emissions. Episodes like the release of methyl isocyanate gas (and other chemicals in Bhopal (1984), the Exxon Val...
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Observations in the past decade have revealed extrasolar planets with a wide range of semi-major axes and eccentricities. Based on the present understanding of planet formation via core accretion and oligarchic growth, we expect that giant planets often form in closely packed configurations. While the protoplanets are embedded in a protoplanetary nebula, dissipation prevents eccentricity growth...
متن کاملPlanet-planet Scattering in Planetesimal Disks
We study the final architecture of planetary systems that evolve under the combined effects of planet-planet and planetesimal scattering. Using N-body simulations we investigate the dynamics of marginally unstable systems of gas and ice giants both in isolation and when the planets form interior to a planetesimal belt. The unstable isolated systems evolve under planet-planet scattering to yield...
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ژورنال
عنوان ژورنال: Nature Methods
سال: 2013
ISSN: 1548-7091,1548-7105
DOI: 10.1038/nmeth.2629