Watching Genes Loop the Loop

Watching Genes Loop the Loop

Most cells of a given species contain essentially the same complement of genes, yet individual genetically identical cells can assume dramatically different appearances and behaviours. This is achieved largely by the regulation of the transcription of individual genes, orchestrated by the specific binding of proteins to nearby sites in the genome—a principle first recognised 50 years ago by Fra...

Stem Stem Stem Loop Loop Loop LoopLoop Loop Loop Loop Loop Loop

Background: Pairwise stochastic context-free grammars (Pair SCFGs) are powerful tools for evolutionary analysis of RNA, including simultaneous RNA sequence alignment and secondary structure prediction, but the associated algorithms are intensive in both CPU and memory usage. The same problem is faced by other RNA alignment-and-folding algorithms based on Sankoff's 1985 algorithm. It is therefor...

Versatile loop - T loop

After extraction, space closure is an essential part of orthodontic treatment which needs thorough understanding of biomechanics used for space closure. Orthodont ic appl iances are being ref ined wi th passage of t ime . This re f inement has reduced the physical e f fort pu t for th in treatment , but does not el imina te the need for an orthodont ist to think, unders tand and apply basic pri...

Loop Shifting for Loop

Ant Colony Algorithm for the Single Loop Routing Problem

In this paper, a new algorithm for solving the single loop routing problem is presented. The purpose of the single loop routing problem(SLRP) is to find the shortest loop for an automated guided vehicle covering at least one edge of each department of a block layout. First it shown that this problem can be represented as a graph model. Then a meta-heuristic algorithm based on and colony system ...