منابع مشابه
Luminous Red Variable Star
We report photometry and spectroscopy of the evolution of Nova Sagittarii 1994 #1 (V4332 Sagittarii) during outburst. We compare the photometric and spectral evolution of this outburst to known classes of outbursts – including classical novae and outbursts occurring on symbiotic stars – and find this object does not conform to any known class of outburst. The closest match to the behavior of th...
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We report spectroscopic observations of a new WolfRayet star not identified yet. This star is located in our Galaxy, in the Canis Majoris region and was discovered during a southern spectroscopic survey of stars previously identified as Hα emission objects. The star, SPH 2, after Schwartz, Persson & Hamann (SPH) (1990), shows the main characteristics of a WN star and a strong CIV 5808 typical o...
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The cytochrome P450 2C19 (CYP2C19) enzyme plays an important role in the metabolism of many commonly used drugs. Relatively little is known about CYP2C19 inhibitors, including compounds of natural origin, which could inhibit CYP2C19, potentially causing clinically relevant metabolism-based drug interactions. We evaluated a series (N = 49) of structurally related plant isoquinoline alkaloids for...
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Silvio Ionta,* Roberto Martuzzi, Roy Salomon, and Olaf Blanke Center for Neuroprosthetics, School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland; Laboratory of Cognitive Neuroscience, Brain-Mind Institute, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland; and Department of Neurology, University Ho...
متن کاملErnst Mayr: 1904 – 2005
One Long Argument, the title of one of Ernst Mayr's later popular books on evolution, in many ways sums up the core of his intellectual life. Mayr, a leading evolutionary biologist over many years of the past century, who died aged 100 last month, was an explorer, naturalist, ornithologist, philosopher, historian of science and Harvard academic. Like Darwin, he was studying medicine when his fo...
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ژورنال
عنوان ژورنال: Astronomische Nachrichten
سال: 1903
ISSN: 0004-6337,1521-3994
DOI: 10.1002/asna.19031641503