two possible isomers of some 1,3-diaryl-h-benzo[f]chromene have been studied using density functional theory. structures of e1 and e2 isomers were optimized at the b3lyp and mp2 levels with different basis sets. the total electronic energies show that e2 isomer is about 3-5 kcal/mol more stable than e1 isomer and this energy difference is attributed to the planarity of heterocyclic ring and mor...

Although four maturity genes, E1 to E4, in soybean have been successfully cloned, their functional mechanisms and the regulatory network of photoperiodic flowering remain to be elucidated. In this study, we investigated how the diurnal expression pattern of the E1 gene is related to photoperiodic length; and to what extent allelic variation in the B3-like domain of the E1 gene is associated wit...

Let G be a graph with vertex set V(G) and edge E(G), let d(u,w) denote the length of u−w geodesic in G. For any v∈V(G) e=xy∈E(G), d(e,v)=min{d(x,v),d(y,v)}. distinct edges e1,e2∈E(G), R{e1,e2}={z∈V(G):d(z,e1)≠d(z,e2)}. Kelenc, Tratnik Yero [Discrete Appl. Math. 251 (2018) 204-220] introduced notion an resolving dimension graph: A subset S⊆V(G) is if |S∩R{e1,e2}|≥1 for dimension, edim(G), minimu...

Two possible isomers of some 1,3-diaryl-H-benzo[f]chromene have been studied using density functional theory. Structures of E1 and E2 isomers were optimized at the B3LYP and MP2 levels with different basis sets. The total electronic energies show that E2 isomer is about 3-5 kcal/mol more stable than E1 isomer and this energy difference is attributed to the planarity of heterocyclic ring and mor...

Regulation of the branched chain alpha-ketoacid dehydrogenase complex, the rate-limiting enzyme of branched chain amino acid catabolism, involves phosphorylation of 2 amino acid residues (site 1, serine 293; site 2, serine 303). To directly assess the roles played by these sites, site-directed mutagenesis was used to convert these serines to glutamates and/or alanines. Functional E1 heterotetra...

Let G(V,E1) and G (V,E2) be two networks on the same vertex set V and consider the union of edges G(V,E1 ∪ E2). This paper studies the stability of the Degree, Betweenness and Eigenvector Centrality of the resultant network, G(V,E1 ∪ E2). Specifically assume v max and v max are the highest centrality vertices of G(V,E1) and G(V,E1 ∪ E2) respectively, we want to find Pr(v max = v max). ar X iv :...

Given an elliptic curve E1 over a number field K and an element s in its 2-Selmer group, we give two different ways to construct infinitely many Abelian surfaces A such that the homogeneous space representing s occurs as a fibre of A over another elliptic curve E2. We show that by comparing the 2Selmer groups of E1, E2 and A, we can obtain information about X(E1/K)[2] and we give examples where...

Adenovirus vectors have been extensively studied through the manipulation of viral genome. However, little attention is being paid to their producer cell-lines; cells are selected according to virus yields, neglecting the expression profile of transcomplementing gene products underlying cell performance. This work evaluates the impact of E1 (E1A and E1B) and Cre recombinase levels in the produc...