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We study the optical appearance of a thin accretion disk around Schwarzschild black hole pierced by cosmic string with semi-analytic method Luminet [Astron. Astrophys. 75 (1979) 228]. Direct and secondary images different parameters observed distant observer are plotted. The parameter [Formula: see text] can modify shape size image. calculate plot distribution both redshift flux as seen observe...
We discuss the implications of the recent upward revision of the LMC microlensing rate by the MACHO Collaboration. We conclude: (i) A good case for the existence of baryonic dark matter in the halo has been made; (ii) The case for the existence of cold dark matter is unaffected and still compelling; and (iii) The Galactic halo is still an excellent place to search for cold dark matter particles...
The dilator function of the vascular endothelium is critical for optimal tissue perfusion, and this is brought into stark reality in a number of diseases, such as hypertension, diabetes, and preeclampsia, in which endothelium-dependent vasodilator function is impaired. Prostacyclin and nitric oxide (NO) were the earliest identified endothelium-dependent vasodilators, but it was soon found that ...
YAKOV RAPOPORT, The doctors'plot, transl. Natina Perova and Raissa Bobrova, London, Fourth Estate, 1991, pp. xii, 280, illus., £17.95 (1-872180-13-2). On 13 January 1953, the astounded citizens of the USSR heard a massive "criminal conspiracy" denounced. Prominent Soviet physicians had conspired to kill the leaders of the country by medical means. A round of arrests followed involving high-rank...
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