نتایج جستجو برای: siberia
تعداد نتایج: 4560 فیلتر نتایج به سال:
To investigate the origin and evolution of aboriginal populations of South Siberia, a comprehensive mitochondrial DNA (mtDNA) analysis (HVR1 sequencing combined with RFLP typing) of 480 individuals, representing seven Altaic-speaking populations (Altaians, Khakassians, Buryats, Sojots, Tuvinians, Todjins and Tofalars), was performed. Additionally, HVR2 sequence information was obtained for 110 ...
Twenty thousand years ago, the Earth was hostile territory. Hulking glaciers smothered much of North America. Deserts claimed swathes of every continent, and winters were 40 degrees colder than today in some spots. But far to the north lay a sprawling, unlikely haven that stretched frommodern-day Canada to Siberia. This was Beringia, a refuge of tundra and grasslands dotted with wildflowers, po...
The Y-chromosome haplogroup N-M231 (Hg N) is distributed widely in eastern and central Asia, Siberia, as well as in eastern and northern Europe. Previous studies suggested a counterclockwise prehistoric migration of Hg N from eastern Asia to eastern and northern Europe. However, the root of this Y chromosome lineage and its detailed dispersal pattern across eastern Asia are still unclear. We an...
[1] This paper analyses the role of the El Niño–Southern Oscillation (ENSO) on the interannual variability of the leaf appearance dates of boreal forests in the Northern Hemisphere (1982–2004). We find significant negative correlations between the ENSO, quantified by means of the Southern Oscillation Index (SOI), and the leaf appearance dates in central Siberia with up to 9 months lag. The corr...
В статье представлено теоретическое и эмпирическое обоснование проблематики формирования оценки медиативной компетентности педагогов в условиях цифровой трансформации с учетом поликультурных особенностей макрорегиона Енисейской Сибири. Представлены примеры авторских кейсов по межэтническим конфликтам образовании, региональных факторов образовательной деятельности (на примере Сибири) как средств...
The article discusses the features of development long-term energy balances in interconnected power system Siberia (IPS). main feature IPS is a high proportion hydro plants and, as result, strong dependence electricity generation on natural fluctuations water inflow into reservoirs. In output HPPs Angara-Yenisei cascade, depending availability conditions, deviation from average values can be up...
This paper presents at first an updated status of atmospheric column-average CO2 mixing ratio XCO2 retrieval scheme based on clear-sky or cloud-cleared AIRS/EOS-Aqua data inversion algorithm. Maps of monthly averaged XCO2 estimates have been produced for extensive region of Siberia with spatial averaging about 1.5 x1.5. Similar methodology has been applied for the retrieval of “instant” XCO2 fr...
We explored the circumpolar phylogeographic history of the arctic-alpine Juncus biglumis using amplified fragment length polymorphisms (AFLPs), sequences of cpDNA, relative nuclear DNA content and chromosome numbers. The analyses of the AFLP and cpDNA data gave congruent results and revealed three distinct clades. One of them, represented by a single population from the Taymyr peninsula in nort...
The diversity of fungi in permanently frozen soil from northeastern Siberia was studied by culture-independent PCR amplification of diverse environmental 18S rRNA genes. Elaborate protocols to avoid contamination during drilling, sampling, and amplification were used. A broad diversity of eukaryotic DNA sequences that were 510 bp long, including sequences of various fungi, plants, and invertebr...
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