Post-transcriptional pseudouridylation and 2'-O-methylation of splicesomal small nuclear ribonucleic acids (snRNAs) is mediated by box H/ACA and box C/D small Cajal body (CB)-specific ribonucleoproteins (scaRNPs), respectively. The WD-repeat protein 79 (WDR79) has been proposed to interact with both classes of modification scaRNPs and target them into the CB. The box H/ACA scaRNAs carry the com...

Boxicity of a graph H , denoted by box(H), is the minimum integer k such that H is an intersection graph of axis-parallel kdimensional boxes in R. In this paper, we show that for a line graph G of a multigraph, box(G) ≤ 2∆(⌈log 2 log 2 ∆⌉ + 3) + 1, where ∆ denotes the maximum degree of G. Since ∆ ≤ 2(χ−1), for any line graph G with chromatic number χ, box(G) = O(χ log 2 log 2 (χ)). For the d-di...

In this paper, we generalize the notions of a matrix and its ideal of 2 × 2 minors to that of a box-shaped matrix and its ideal of 2 × 2 minors, and make use of these notions to study projective embeddings of certain blowup surfaces. We prove that the ideal of 2× 2 minors of a generic box-shaped matrix is a perfect prime ideal that gives the algebraic description for the Segre embedding of the ...

Archaeal and eukaryotic organisms contain sets of C/D box s(no)RNAs with guide sequences that determine ribose 2'-O-methylation sites of target RNAs. The composition of these C/D box sRNA sets is highly variable between organisms and results in varying RNA modification patterns which are important for ribosomal RNA folding and stability. Little is known about the genomic organization of C/D box...

Metaphase II-arrested mouse eggs are stimulated to complete meiosis by sperm-induced Ca2+ spiking. The Ca2+ signal causes activation of the E3 ligase anaphase-promoting complex/cyclosome (APC), leading to the destruction of key proteins necessary for meiotic exit. We show, using western blots of mouse eggs, the presence of both APC activators cdc20 and cdh1, which target D-box and D-box/KEN-box...

The purpose of this research is predicting the stock prices using the Particle Swarm Optimization Algorithm and Box-Jenkins method. In this way, the information of 165 corporations is collected from 2001 to 2016. Then, this research considers price to earnings per share and earnings per share as main variables. The relevant regression equation was created using two variables of earnings per sha...