منابع مشابه
A Newly Discovered Manuscript Dedication by Mark Akenside
Mark Akenside was one of a number of eighteenth-century men who rose to prominence as both a poet and a doctor. He was born in 1721 in Newcastle upon Tyne, and in 1738 attended Edinburgh University, initially to prepare for becoming a Presbyterian clergyman, but switching after a year to the study of medicine. During his student career, he wrote a long philosophical poem, The pleasures of imagi...
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We present a correlative study between all unidentified EGRET sources at low Galactic latitudes and the newly discovered pulsars in the released portion of the Parkes multibeam radio survey. We note 14 positional coincidences: eight of these are “Vela-like” pulsars, with relatively small periods, small characteristic ages, and high spin-down luminosities. Three of these coincidences have been i...
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In this work we report spectrophotometric observations of a planetary nebula sample towards the galac-tic bulge. A total of 45 PNe was observed and their physical parameters (electron density and temperature) were derived. Ionic abundances were calculated using a three-level atom model and abundances were derived through ionisation correction factors. Results show low abundance objects at high ...
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A prerequisite for the evolutionary stability of pollinating seed-consuming mutualisms is that each partner benefits from the association. However, few studies of such mutualism have considered the benefit gained by the pollinators. Here, we determined how the pollinating seed-predators ensure the provisioning of their offspring in the recently discovered mutualism between Rheum nobile and Brad...
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The mitochondrial enzyme glutaminase C (GAC) catalyzes the hydrolysis of glutamine to glutamate plus ammonia, a key step in the metabolism of glutamine by cancer cells. Recently, we discovered a class of allosteric inhibitors of GAC that inhibit cancer cell growth without affecting their normal cellular counterparts, with the lead compound being the bromo-benzophenanthridinone 968. Here, we tak...
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ژورنال
عنوان ژورنال: Nature
سال: 1945
ISSN: 0028-0836,1476-4687
DOI: 10.1038/156351a0