Agrobacterium tumefaciens strain C58 is a type of pathogen that can cause tumors in some dicotyledonous plants.Ever since the genome of A. tumefaciens strain C58 was sequenced, the quality of annotation of its protein...Agrobacterium tumefaciens strain C58 is a type of pathogen that can cause tumors in some dicotyledonous plants.Ever since the genome of A. tumefaciens strain C58 was sequenced, the quality of annotation of its protein-coding genes has been queried continually, because the annotation varies greatly among different databases. In this paper, the questionable hypothetical genes were re-predicted by integrating the TN curve and Z curve methods. As a result, 30 genes originally annotated as ＂hypothetical＂ were discriminated as being non-coding sequences. By testing the re-prediction program 10 times on data sets composed of the function-known genes, the mean accuracy of 99.99% and mean Matthews correlation coefficient value of 0.9999 were obtained. Further sequence analysis and COG analysis showed that the re-annotation results were very reliable. This work can provide an efficient tool and data resources for future studies of A. tumefaciens strain C58.展开更多
An exact de Sitter solution of scalar-tensor gravity is found in our recent work, in which the non-minimal coupling scalar is rolling along a non-constant potential. Based on this solution, a dust-filled FRW universe ...An exact de Sitter solution of scalar-tensor gravity is found in our recent work, in which the non-minimal coupling scalar is rolling along a non-constant potential. Based on this solution, a dust-filled FRW universe is explored in frame of scalar-tensor gravity in this article. The effective dark energy induced by the sole non-minimal scalar can be quintessence-like, phantom-like, and more significantly, can cross the phantom divide. The rich and varied properties of scalar-tensor gravity even with only one scalar is shown.展开更多
Two new copper-organic frameworks [Cu4(L^1)4(DMF)4·2DMF]n(DZ-1) and [Cu(L^2)(DMF)]n(DZ-2)(H2L^1 = 2,2'-(1,4-phenylenebis(methylene))bis(sulfanediyl)dinicotinic acid and H2L^2 = 2,2'-(1,2-phenylenebis(meth...Two new copper-organic frameworks [Cu4(L^1)4(DMF)4·2DMF]n(DZ-1) and [Cu(L^2)(DMF)]n(DZ-2)(H2L^1 = 2,2'-(1,4-phenylenebis(methylene))bis(sulfanediyl)dinicotinic acid and H2L^2 = 2,2'-(1,2-phenylenebis(methylene))bis(sulfanediyl)dinicotinic acid) have been synthesized and characterized. DZ-1 with a zero-dimensional structure crystallizes in monoclinic crystal system, space group P21/n with a = 17.1697(11), b = 17.1241(11), c = 18.8638(14) ?, V = 5193.2(6) ?~3, Z = 2, Dc = 1.493 g·cm^(-3), μ = 1.046 mm^(-1), F(000) = 2408. All L^1 ligands adopted syn-conformation. DZ-2 is a two-dimensional structure crystallized in monoclinic crystal system, space group P21/n with a = 11.855(5), b = 18.601(8), c = 12.319(5) ?, V = 2400.4(18) ?~3, Z = 4, Dc = 1.514 g·cm^(-3), μ = 1.124 mm^(-1), F(000) = 1124. The selective sorption of CO2 over N2 for DZ-1 was found.展开更多
In this paper, the relative phase relationship between flare index and sunspot activity （sunspot numbers and sunspot areas） is investigated. It is found that （i） the flare index and sunspot activity are asynchrono...In this paper, the relative phase relationship between flare index and sunspot activity （sunspot numbers and sunspot areas） is investigated. It is found that （i） the flare index and sunspot activity are asynchronous in phase space at all period scales, and the former lags behind the latter, which implies our results are supported for the integral response model; （ii） their different definitions and physical meanings may be a major reason for their phase asynchrony between them, and the solar flare activity favor to be related to the magnetic complex rather than magnetic strength.展开更多
基金Project supported by the National Natural Science Foundation of China(Grant Nos.61302186 and 61271378)the Funding from the State Key Laboratory of Bioelectronics of Southeast University
文摘Agrobacterium tumefaciens strain C58 is a type of pathogen that can cause tumors in some dicotyledonous plants.Ever since the genome of A. tumefaciens strain C58 was sequenced, the quality of annotation of its protein-coding genes has been queried continually, because the annotation varies greatly among different databases. In this paper, the questionable hypothetical genes were re-predicted by integrating the TN curve and Z curve methods. As a result, 30 genes originally annotated as ＂hypothetical＂ were discriminated as being non-coding sequences. By testing the re-prediction program 10 times on data sets composed of the function-known genes, the mean accuracy of 99.99% and mean Matthews correlation coefficient value of 0.9999 were obtained. Further sequence analysis and COG analysis showed that the re-annotation results were very reliable. This work can provide an efficient tool and data resources for future studies of A. tumefaciens strain C58.
基金supported by the Program for Professor of Special Appointment(Eastern Scholar)at Shanghai Institutions of Higher Learningthe National Education Foundation of China(Grant No.200931271104)+2 种基金the National Natural Science Foundation of China(Grant Nos.11075106,11275128,11203006 and 11303003)Shandong Provincial Natural Science Foundation of China(Grant Nos.ZR2012AQ029 and ZR2013AM002)Nature Science Foundation of Zhejiang Province(Grant No.Y6110778)
文摘An exact de Sitter solution of scalar-tensor gravity is found in our recent work, in which the non-minimal coupling scalar is rolling along a non-constant potential. Based on this solution, a dust-filled FRW universe is explored in frame of scalar-tensor gravity in this article. The effective dark energy induced by the sole non-minimal scalar can be quintessence-like, phantom-like, and more significantly, can cross the phantom divide. The rich and varied properties of scalar-tensor gravity even with only one scalar is shown.
基金Supported by the National Natural Science Foundation of China(No.21701021)the Natural Science Foundation(No.ZR2017BEM023)of Shandong Provincethe Open Fund of State Key Laboratory of Coordination Chemistry(No.SKL CC1905)。
文摘Two new copper-organic frameworks [Cu4(L^1)4(DMF)4·2DMF]n(DZ-1) and [Cu(L^2)(DMF)]n(DZ-2)(H2L^1 = 2,2'-(1,4-phenylenebis(methylene))bis(sulfanediyl)dinicotinic acid and H2L^2 = 2,2'-(1,2-phenylenebis(methylene))bis(sulfanediyl)dinicotinic acid) have been synthesized and characterized. DZ-1 with a zero-dimensional structure crystallizes in monoclinic crystal system, space group P21/n with a = 17.1697(11), b = 17.1241(11), c = 18.8638(14) ?, V = 5193.2(6) ?~3, Z = 2, Dc = 1.493 g·cm^(-3), μ = 1.046 mm^(-1), F(000) = 2408. All L^1 ligands adopted syn-conformation. DZ-2 is a two-dimensional structure crystallized in monoclinic crystal system, space group P21/n with a = 11.855(5), b = 18.601(8), c = 12.319(5) ?, V = 2400.4(18) ?~3, Z = 4, Dc = 1.514 g·cm^(-3), μ = 1.124 mm^(-1), F(000) = 1124. The selective sorption of CO2 over N2 for DZ-1 was found.
基金supported by the National Natural Science Foundation of China(Grant Nos.11003041 and 11203006)Shandong Provincial Natural Science Foundation(Grant Nos.ZR2009AM021,ZR2012AQ029,ZR2012AM008 and ZR2010AL025)+1 种基金Dezhou University Foundation(Grant No.402126)supported by Open Research Program of Key Laboratory for the Structure and Evolution of Celestial Objects,Chinese Academy of Sciences(Grant No.OP201102)
文摘In this paper, the relative phase relationship between flare index and sunspot activity （sunspot numbers and sunspot areas） is investigated. It is found that （i） the flare index and sunspot activity are asynchronous in phase space at all period scales, and the former lags behind the latter, which implies our results are supported for the integral response model; （ii） their different definitions and physical meanings may be a major reason for their phase asynchrony between them, and the solar flare activity favor to be related to the magnetic complex rather than magnetic strength.
