3709 to 3720 of 13722 results
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Evolutionary temperature adaptation and the calcium regulation of fish actomyosin ATPases
Read more of: Evolutionary temperature adaptation and the calcium regulation of fish actomyosin ATPasesActomyosins have been isolated from the white skeletal muscles of fish inhabiting thermal environments with characteristically low seasonal temperature variations for example, Antarctica, arctic rivers and the equatorial oceans. Calcium […]
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High-coverage genomes to elucidate the evolution of penguins
Read more of: High-coverage genomes to elucidate the evolution of penguinsPenguins (Sphenisciformes) are a remarkable order of flightless wing-propelled diving seabirds distributed widely across the southern hemisphere. They share a volant common ancestor with Procellariiformes close to the Cretaceous-Paleogene boundary […]
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Geomagnetic polarisation anomaly at South Georgia
Read more of: Geomagnetic polarisation anomaly at South GeorgiaA preliminary analysis shows that magnetic variations of periods 16 to 60 minutes at South Georgia are strongly polarized in a NNE’ly direction. The effect is observed at all seasons […]
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Performance of V.H.F. aerials close to a snow surface
Read more of: Performance of V.H.F. aerials close to a snow surfaceMeasurements of aerial admittance as a function of height above a snow surface show that when the surface temperature is below freezing, the aerial performance is insensitive to slight surface […]