The definition of AP-injectivity wnil-injectivity and almost nil n-injectivity motivates us to generalize the injectivity to almost The aim of this paper is to investigate characterizations and properties of almost w...The definition of AP-injectivity wnil-injectivity and almost nil n-injectivity motivates us to generalize the injectivity to almost The aim of this paper is to investigate characterizations and properties of almost wnil-injective rings and almost nil n-injective rings. Various results are developed, and many conclusions extend known results.展开更多
In this paper,we determine the Sombor index and some other vertex-degree-based topological indices for the nil-clean graphs of Z_(n),the ring of integers modulo n.
A ring is called nil G-*-clean ring if each of its elements is a sum of a G-projection and a nilpotent.In this paper,we study the basic properties of this ring and some relations with other rings.We prove that R is ni...A ring is called nil G-*-clean ring if each of its elements is a sum of a G-projection and a nilpotent.In this paper,we study the basic properties of this ring and some relations with other rings.We prove that R is nil G-*-clean if(G(R)+J)/J=G(R/J)=and only if is nil,and is nil G-*-clean.展开更多
[Objective]The research aimed at investigating mechanisms of the changes of pharbitis.nil flower colors and leaf colors.[Method]The recombinant plasmid pMD18-T/Tpn was constructed by amplifying the target fragments fr...[Objective]The research aimed at investigating mechanisms of the changes of pharbitis.nil flower colors and leaf colors.[Method]The recombinant plasmid pMD18-T/Tpn was constructed by amplifying the target fragments from young leaf tissues of the blue and white mutant of Pharbitis nil with PCR technology and investigating in the fields.[Result]The results of investigations in the fields suggested that the mutant was segregated in F3 generation,and the mutations of leaf colors did not affect the changes of flower colors.The results of PCR amplification showed that there was a band about 330 bp in genomic DNA of Lanbai,Chunlan,Dahua,respectively,however,no bands were found in genomic DNA of Chunguang,Baixue,Ping＇anhong and Chuiman.[Conclusion]The sequence of recombinant plasmid of the mutant was indeed a fragment of the transposon of Pharbitis nil.展开更多
基金Supported by the Doctoral Fund of the Ministry of Education of China(Grant No.200803570003)the College Excellent Young Talents Fund of Anhui Province(Grant No.2013SQRL071ZD)
文摘The definition of AP-injectivity wnil-injectivity and almost nil n-injectivity motivates us to generalize the injectivity to almost The aim of this paper is to investigate characterizations and properties of almost wnil-injective rings and almost nil n-injective rings. Various results are developed, and many conclusions extend known results.
基金supported by the National Natural Science Foundation of China(Nos.12261001,12461001)the Research Foundation Ability Enhancement Project for Young and Middle aged Teachers in Guangxi Universities(No.025KY0477)。
文摘In this paper,we determine the Sombor index and some other vertex-degree-based topological indices for the nil-clean graphs of Z_(n),the ring of integers modulo n.
基金Supported by Anhui Provincial Natural Science Foundation(2008085MA06)。
文摘A ring is called nil G-*-clean ring if each of its elements is a sum of a G-projection and a nilpotent.In this paper,we study the basic properties of this ring and some relations with other rings.We prove that R is nil G-*-clean if(G(R)+J)/J=G(R/J)=and only if is nil,and is nil G-*-clean.
文摘[Objective]The research aimed at investigating mechanisms of the changes of pharbitis.nil flower colors and leaf colors.[Method]The recombinant plasmid pMD18-T/Tpn was constructed by amplifying the target fragments from young leaf tissues of the blue and white mutant of Pharbitis nil with PCR technology and investigating in the fields.[Result]The results of investigations in the fields suggested that the mutant was segregated in F3 generation,and the mutations of leaf colors did not affect the changes of flower colors.The results of PCR amplification showed that there was a band about 330 bp in genomic DNA of Lanbai,Chunlan,Dahua,respectively,however,no bands were found in genomic DNA of Chunguang,Baixue,Ping＇anhong and Chuiman.[Conclusion]The sequence of recombinant plasmid of the mutant was indeed a fragment of the transposon of Pharbitis nil.
