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Träfflista för sökning "WFRF:(Wells A.) srt2:(2000-2004)"

Sökning: WFRF:(Wells A.) > (2000-2004)

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  • Wells, R S, et al. (författare)
  • The Eurasian heartland : a continental perspective on Y-chromosome diversity.
  • 2001
  • Ingår i: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences. - 0027-8424 .- 1091-6490. ; 98:18, s. 10244-9
  • Tidskriftsartikel (refereegranskat)abstract
    • The nonrecombining portion of the human Y chromosome has proven to be a valuable tool for the study of population history. The maintenance of extended haplotypes characteristic of particular geographic regions, despite extensive admixture, allows complex demographic events to be deconstructed. In this study we report the frequencies of 23 Y-chromosome biallelic polymorphism haplotypes in 1,935 men from 49 Eurasian populations, with a particular focus on Central Asia. These haplotypes reveal traces of historical migrations, and provide an insight into the earliest patterns of settlement of anatomically modern humans on the Eurasian continent. Central Asia is revealed to be an important reservoir of genetic diversity, and the source of at least three major waves of migration leading into Europe, the Americas, and India. The genetic results are interpreted in the context of Eurasian linguistic patterns.
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  • Yu, CH, et al. (författare)
  • Rotational Bands with Terminating Properties in 59Ni
  • 2002
  • Ingår i: Physical Review C (Nuclear Physics). - 0556-2813. ; 65:6
  • Tidskriftsartikel (refereegranskat)abstract
    • Highly-deformed rotational bands were established in Ni-59 using the Ca-40(Si-29,2p2alpha)Ni-59 reaction. Lifetime measurements indicate that transition quadrupole moments of two of these bands decrease as they smoothly approach their maximum-spin states. The configurations of these bands as well as their band-terminating features are discussed based on configuration-dependent cranked Nilsson-Strutinsky calculations. These calculations indicate that, unlike similar bands observed previously in the region, the two bands in Ni-59 maintain significant collectivity at their I=I-max states.
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