Algorithms for geometric and chemical comparison of protein substructure can be useful for many applications in protein function prediction. These motif matching algorithms identify matches of geometric and chemical similarity between well-studied functional sites, motifs, and substructures of functionally uncharacterized proteins, targets. For the purpose of function prediction, the accuracy o...

In this paper 1 we present a method for discovering approximately common motifs (also known as active motifs) in three dimensional (3D) molecules. Each node in a molecule is represented by a 3D point in the Euclidean Space and each edge is represented by an undirected line segment connecting two nodes in the molecule. Motifs are rigid substructures which may occur in a molecule after allowing f...

in islamic architecture, the architect always tried to decorate the internal and external areas in different ways. one type of these decorations is called brick working, which was current in pre-ilkhanid, ilkhanid period, and after this period. this decoration was used in two ways. in ilkhanid period, the architect used a type of brick which was exactly formed in favorite shapes before baking. ...

The development of new and effective drugs is strongly affected by the need to identify drug targets and to reduce side effects. Unfortunately, resolving these issues depends partially on a broad and thorough understanding of the biological function of many proteins, and the experimental determination of protein function is expensive and time consuming. In response to this problem, algorithms f...

For a large class of proteins called sandwich-like proteins (SPs), the secondary structures consist of two beta-sheets packed face-to-face, with each beta-sheet consisting typically of three to five beta-strands. An important step in the prediction of the three-dimensional structure of a SP is the prediction of its supersecondary structure, namely the prediction of the arrangement of the beta-s...

Region growing and edge detection are two popular and common techniques used for image segmentation. Region growing is preferred over edge detection methods because it is more robust against low contrast problems and effectively addresses the connectivity issues faced by edge detectors. Edgebased techniques, on the other hand, can significantly reduce useless information while preserving the im...

Fractal is a geometric object that can be broken down into several parts and has shape similar to the original. The development of motif uses Koch Snowflake, Mandelbrot Association, Hilbert Curve, Julia Association add combination Batik Daun Singkong Bondowoso. This study Research Development (RnD) research method with final product in form Student Worksheets (LKS) containing fractal-based bati...