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21.
G. Ferri C. Robino D. Luiselli L. Caciagli S. Pelotti F. Crobu C. Capelli 《Forensic Science International: Genetics Supplement Series》2008,1(1):203-205
We recently found a number of intermediate DYS458 alleles, indicated as .2. This allelic variant is distributed in several populations, but currently no information is available regarding the molecular structure and the genealogical correlation of chromosomes with this variant. The molecular characterisation of such allele, its worldwide distribution and the correlated evolutionary history are the subject of the present paper. Molecular and genealogical data are suggestive of a single origin for the .2 variant. Phylogeographic analysis points to either a Middle East or East African origin, but additional data is necessary to clarify this point. Our results suggest that the .2 variants is a stable polymorphism and that it could be used for population studies. 相似文献
22.
A recent large firm-level dataset is analysed to compare labour indicators of privatised, private, and public firms around the world, in particular differences relating to wages, benefits, labour composition, education and training, unionisation, and quality of management. We find that labour productivity and the ratio of permanent to temporary workers increase after privatisation. 相似文献