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Background Hainan Island is located around the conjunction of East Asia and Southeast Asia, and during the Last Glacial Maximum (LGM) was connected with the mainland. This provided an opportunity for the colonization of Hainan Island by modern human in the Upper Pleistocene. Whether the ancient dispersal left any footprints in the contemporary gene pool of Hainan islanders is debatable. Results...
The membranes of poly(γ-benzyl l-glutamate-co-l-glutamic acid) [P(BLG-LGA)] were prepared by saponification of poly(γ-benzyl l-glutamate) (PBLG) membranes. The permeation of two anticancer drugs, 5-fluoro-uracil (5-fu) and 2-hydroxyethyl-oxy-methyl-5-fluoro-uracil (2-HEOM-5-Fu), through these membranes was studied. The results showed a sharp increase in permeability of the copolymer membranes compared...
Rapid growth in power electronic equipment (PEEs) implies that in about 10 years, more than 50% of electric utility output will be consumed by PEEs. While PEEs yield benefits of large energy savings and product reliability, they cause the problem of harmonics. Harmonics deteriorate power quality, produce metering errors, increase reactive power, and exacerbate line losses and heat in transmission...
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