| Thus for these particular radiations the dose equivalent in sieverts is numerically equal to the absorbed dose in grays. |
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| Rate variation among lineages is the footprint of selection and can be indicative of species radiations or differential structural constraints. |
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| Who knows what kind of impact it would have if atomic detonation shockwave combined with lethal radiations combed through the world below them. |
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| However, precise calibrations are required for dating particular events such as the K-T impact on modem bird origins and radiations. |
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| How can changes in an ancestral ontogeny be reconstructed, since the ancestors of most craniate radiations are extinct? |
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| To control for fundamental differences in the primate radiations, we restricted our analyses to catarrhine primates. |
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| The great evolutionary plasticity of bill form and function is well known from the radiations of Hawaiian honeycreepers and Galapagos finches. |
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| These markers are chosen according to their spectral properties and their physico-chemical reactivities toward UV radiations. |
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| When ionizing radiations pass through matter, energy is deposited in the material concerned. |
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| The radioactive material generates ionising radiations, which include alpha particles, beta particles, X-rays and gamma rays. |
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| A radioactive source will emit these radiations at various frequencies, depending on its activity and its decay mode. |
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| This foil doesn't do very well in the air, but it protected it from meteorites and from the ultraviolet radiations from the sun. |
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| Gamma rays are high energy photons, often emitted together with beta or alpha radiations when the transformation has left the atom with excess energy. |
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| The total spectrum of solar radiation comprises ultraviolet radiations, visible light, and infra-red radiations, in order of increasing electromagnetic wavelengths. |
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| Fibers of the optic and auditory radiations are interposed between the lentiform nucleus above and the temporal horn of the lateral ventricle below. |
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| Archipelagoes are well known as arenas for species radiations. |
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| Mass extinctions are often followed by adaptive radiations as existing clades expand to occupy the ecospace emptied by the extinction. |
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| Indeed, statistical analysis shows that the Cambrian explosion was no faster than any of the other radiations in animals' history. |
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| Later radiations, such as those of fish in the Silurian and Devonian periods, involved fewer taxa, mainly with very similar body plans. |
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| To the insider, the ceiling is like a small firmament twinkling with astral radiations. |
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| She was now 16 and sending off her first radiations and vibrations dressed in Varda's own rutilant colors. |
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| Although alpha, beta, and gamma radiations were most commonly found, other types of emission were eventually discovered. |
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| For an understanding of the different ionising effects of these radiations and the weighting factors applied, see the article on absorbed dose. |
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| The principal radiations which will be encountered are alpha, beta and gamma, but these have quite different characteristics. |
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| This suggests that the very deep ocean has fostered adaptive radiations. |
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| Those that remained, a few tarsiers, lorises and lemurs, could be viewed as a somewhat unprogressive lot, relative to the heyday of prosimian radiations. |
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| Waste PET samples were irradiated by gamma radiations at different doses and reduction in molecular weight of the polymer was studied using viscometry technique. |
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| They have widely differing penetrating powers and radiation effect, and the accompanying diagram shows the penetration of these radiations in simple terms. |
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