نتایج جستجو برای: siberian
تعداد نتایج: 4409 فیلتر نتایج به سال:
■ Abstract A number of important insights into the peopling of the New World have been gained through molecular genetic studies of Siberian and Native American populations. These data indicate that the initial migration of ancestral Amerindian originated in south-central Siberia and entered the New World between 20,000–14,000 calendar years before present (cal yr BP). These early immigrants pro...
O. N. Martyanov,1 V. F. Yudanov,1 R. N. Lee,2 S. A. Nepijko,3,4,* H. J. Elmers,4 R. Hertel,5 C. M. Schneider,5 and G. Schönhense4 1Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Prospekt Akademika Lavrentieva 5, 630090 Novosibirsk, C.I.S./Russia 2Budker Institute of Nuclear Physics, Siberian Branch of the Russian Academy of Sciences, Prospekt Akademika Lavr...
The paper outlines a probabilistic basis for the automatic estimation from observed surface wave dispersion of structural model parameters with uncertainties. Given an earth model, a wave type and pertinent parameter values, the group velocity of seismic waves can be computed from theory as a function of frequency. Such a function may also be based on the dynamic spectrum representation of an e...
Received: Revised: Accepted: March 16, 2013 June 28, 2013 July 7, 2013 A 2-year-old, intact male Siberian Husky was presented with corneal opacity, eye lid swelling, depigmentation, alopecia and erythema predominantly on face. Bilateral uveitis preceded periocular and nasal planum depigmentation. Ancillary tests excluded other systemic diseases. Histopathology of the skin revealed lichenoid int...
1 Laboratory for Genomic Medicine, Division of Experimental and Clinical Cardiology, Research Institute for Complex Issues of Cardiovascular Diseases under the Siberian Branch of the Russian Academy of Medical Sciences, Kemerovo, Russia 2 Department of Epidemiology, Kemerovo State Medical Academy, Kemerovo, Russia 3 Central Research Laboratory, Kemerovo State Medical Academy, Kemerovo, Russia 4...
A method to enumerate labile hydrogens in all constituents of molecular ensemble of natural organic matter (NOM) based on our previously developed simple hydrogen/deuterium (H/D) exchange (electrospray ionization (ESI) ion source (Kostyukevich et al. Anal. Chem. 2013, 85, 5330) and ultra-high-resolution Fourier transform ion cyclotron resonance mass spectrometry is presented. The method was app...
The Siberian Traps represent one of the most voluminous flood basalt provinces on Earth. Laser-heating (40)Ar/(39)Ar data indicate that the bulk of these basalts was erupted over an extremely short time interval (900,000 +/- 800,000 years) beginning at about 248 million years ago at mean eruption rates of greater than 1.3 cubic kilometers per year. Such rates are consistent with a mantle plume ...
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