Chinese English expresses typical items with Chinese characteristics, however, Chinglish is a misshapen language. The difference existing between them is a very important consideration when using English. Through the ...Chinese English expresses typical items with Chinese characteristics, however, Chinglish is a misshapen language. The difference existing between them is a very important consideration when using English. Through the comparison between Chinese English and Chinglish, The purpose of this paper is to make people use English better.展开更多
Massively parallel sequencing(MPS)offers a useful alternative to capillary electrophoresis(CE)based analysis of human identification markers in forensic genetics.By sequencing short tandem repeats(STRs)instead of dete...Massively parallel sequencing(MPS)offers a useful alternative to capillary electrophoresis(CE)based analysis of human identification markers in forensic genetics.By sequencing short tandem repeats(STRs)instead of determining the fragment lengths by CE,the sequence variation within the repeat region and the flanking regions may be identified.In this study,we typed 264 Uyghur individuals using the MiSeq FGx^(^(TM)) Forensic Genomics System and Primer Mix A of the ForenSeq^(^(TM)) DNA Signature Prep Kit that amplifies 27 autosomal STRs,25 Y-STRs,seven X-STRs,and 94 HID-SNPs.STRinNGS v.1.0 and GATK 3.6 were used to analyse the STR regions and HID-SNPs,respectively.Increased allelic diversity was observed for 33 STRs with the PCR-MPS assay.The largest increases were found in DYS389II and D12S391,where the numbers of sequenced alleles were 3–4 times larger than those of alleles determined by repeat length alone.A relatively large number of flanking region variants(28 SNPs and three InDels)were observed in the Uyghur population.Seventeen of the flanking region SNPs were rare,and 12 of these SNPs had no accession number in dbSNP.The combined mean match probability and typical paternity index based on 26 sequenced autosomal STRs were 3.85E36 and 1.49Eþ16,respectively.This was 10000 times lower and 1000 times higher,respectively,than the same parameters calculated from STR repeat lengths.展开更多
Using the Dirac–Heisenberg–Wigner formalism,effects of the asymmetric pulse shape on the generation of electronpositron pairs in three typical polarized fields,i.e.,linear,middle elliptical and circular fields,are i...Using the Dirac–Heisenberg–Wigner formalism,effects of the asymmetric pulse shape on the generation of electronpositron pairs in three typical polarized fields,i.e.,linear,middle elliptical and circular fields,are investigated.Two kinds of asymmetries for the falling pulse length,short and elongated,are studied.We find that the interference effect disappears with the shorter pulse length and that the peak value of the momentum spectrum is concentrated in the center of the momentum space.In the case of the extending falling pulse length,a multiring structure without interference appears in the momentum spectrum.Research results show that the momentum spectrum is very sensitive to the asymmetry of the pulse as well as to the polarization of the fields.We also find that the number density of electronpositron pairs under different polarizations is sensitive to the asymmetry of the electric field.For the short falling pulse,the number density can be significantly enhanced by over two orders of magnitude.These results could be useful in planning high-power and/or high-intensity laser experiments.展开更多
文摘Chinese English expresses typical items with Chinese characteristics, however, Chinglish is a misshapen language. The difference existing between them is a very important consideration when using English. Through the comparison between Chinese English and Chinglish, The purpose of this paper is to make people use English better.
文摘Massively parallel sequencing(MPS)offers a useful alternative to capillary electrophoresis(CE)based analysis of human identification markers in forensic genetics.By sequencing short tandem repeats(STRs)instead of determining the fragment lengths by CE,the sequence variation within the repeat region and the flanking regions may be identified.In this study,we typed 264 Uyghur individuals using the MiSeq FGx^(^(TM)) Forensic Genomics System and Primer Mix A of the ForenSeq^(^(TM)) DNA Signature Prep Kit that amplifies 27 autosomal STRs,25 Y-STRs,seven X-STRs,and 94 HID-SNPs.STRinNGS v.1.0 and GATK 3.6 were used to analyse the STR regions and HID-SNPs,respectively.Increased allelic diversity was observed for 33 STRs with the PCR-MPS assay.The largest increases were found in DYS389II and D12S391,where the numbers of sequenced alleles were 3–4 times larger than those of alleles determined by repeat length alone.A relatively large number of flanking region variants(28 SNPs and three InDels)were observed in the Uyghur population.Seventeen of the flanking region SNPs were rare,and 12 of these SNPs had no accession number in dbSNP.The combined mean match probability and typical paternity index based on 26 sequenced autosomal STRs were 3.85E36 and 1.49Eþ16,respectively.This was 10000 times lower and 1000 times higher,respectively,than the same parameters calculated from STR repeat lengths.
基金supported by the National Natural Science Foundation of China(NSFC)under Grant Nos.11875007 and 11935008supported by the NSFC under Grant No.11705278。
文摘Using the Dirac–Heisenberg–Wigner formalism,effects of the asymmetric pulse shape on the generation of electronpositron pairs in three typical polarized fields,i.e.,linear,middle elliptical and circular fields,are investigated.Two kinds of asymmetries for the falling pulse length,short and elongated,are studied.We find that the interference effect disappears with the shorter pulse length and that the peak value of the momentum spectrum is concentrated in the center of the momentum space.In the case of the extending falling pulse length,a multiring structure without interference appears in the momentum spectrum.Research results show that the momentum spectrum is very sensitive to the asymmetry of the pulse as well as to the polarization of the fields.We also find that the number density of electronpositron pairs under different polarizations is sensitive to the asymmetry of the electric field.For the short falling pulse,the number density can be significantly enhanced by over two orders of magnitude.These results could be useful in planning high-power and/or high-intensity laser experiments.
