3637 to 3648 of 13906 results
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The influence of reindeer on the vegetation of South Georgia: I. Long-term effects of unrestricted grazing and the establishment of exclosure experiments in various plant communities
Read more of: The influence of reindeer on the vegetation of South Georgia: I. Long-term effects of unrestricted grazing and the establishment of exclosure experiments in various plant communities -
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Adaptation to an 8-h shift in living routine by members of a socially isolated community
Read more of: Adaptation to an 8-h shift in living routine by members of a socially isolated communityThe proportion of the working population employed on some form of shift system has increased substantially over the past two or three decades. Expert opinion as to the optimal form […]
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Studies of experimental rhinovirus type 2 infections in polar isolation and in England
Read more of: Studies of experimental rhinovirus type 2 infections in polar isolation and in EnglandAfter five months of total isolation a wintering party of seventeen British Antarctic Survey (BAS) personnel was inoculated under double blind concitions with placebo, or rhinovirus type 2 which had […]
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The British Arctic Expedition, 1875-76
Read more of: The British Arctic Expedition, 1875-76The British Arctic Expedition sailed from Portsmouth on 29 May 1875. It left amid considerable public enthusiasm and with a telegram from the Queen. A contemporary journal had this to […]
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Antarctic krill: a reappraisal of its distribution
Read more of: Antarctic krill: a reappraisal of its distributionThe past ten years have seen a greatly increased interest in the Antarctic krill Euphausia superba Dana (Fig 1). In particular there have been several Russian expeditions whose main aim […]
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Determination of representative height distributions of the electron concentration in the ionosphere
Read more of: Determination of representative height distributions of the electron concentration in the ionosphereMedian height distributions of electron concentration may be determined from ionograms by means of the composite ionogram technique of Wright, or by inserting tabulated parameters in the idealized model of […]
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Signatures of the evolution of parthenogenesis and cryptobiosis in the genomes of panagrolaimid nematodes
Read more of: Signatures of the evolution of parthenogenesis and cryptobiosis in the genomes of panagrolaimid nematodesMost animal species reproduce sexually and fully parthenogenetic lineages are usually short lived in evolution. Still, parthenogenesis may be advantageous as it avoids the cost of sex and permits colonisation […]