This paper proposes two optimal Cordic Loeffler based DCT (Discrete Cosine Transform algorithm) architectures: a fast and low Power DCT architecture and a high PSNR DCT architecture. The rotation parameters of CORDIC angles required for these architectures have been calculated using a MATLAB script. This script allows the variation of the angle’s precision from 10−1 to 10−4. The experimental re...

The protein tyrosine kinase expressed by the protooncogene c-fgr is phosphorylated and down-regulated in vitro by the c-Src kinase (CSK). CSK catalyzed phosphorylation affects Tyr-511 of c-Fgr, homologous to Tyr-527 of c-Src and it prevents the autophosphorylation normally occurring at c-Fgr Tyr-400, homologous to c-Src Tyr-416. Polylysine, histones H1 and H2A and other polycationic proteins on...

The paper presents novel recursive algorithms for realization of one-dimensional type-II discrete cosine transform (DCT) and inverse discrete cosine transform (IDCT) of any length. By using some mathematical techniques, recursive expressions for DCT and IDCT have been developed. The number of additions and multiplications in the recursive algorithm for DCT are less in comparison with some other...

In this paper, an algorithm for image coding based on a sparse 3-dimensional Discrete Cosine Transform (3D DCT) is studied. The algorithm is essentially a method for achieving a sufficiently sparse representation using 3D DCT. The experimental results obtained by the algorithm are compared to the 2D DCT (used in JPEG standard) and wavelet db9/7 (used in JPEG2000 standard). It is experimentally ...

Keywords: Biorthogonal transform Image compression JPEG algorithm All phase biorthogonal transform (APBT) Dual biorthogonal basis vectors Walsh transform (WT) Discrete cosine transform (DCT) Inverse discrete cosine transform (IDCT) Peak signal to noise ratio (PSNR) a b s t r a c t This paper proposes new concepts of the all phase biorthogonal transform (APBT) and the dual biorthogonal basis vec...

Protein kinases of the DYRK ('dual-specificity tyrosine-regulated kinase') family are characterized by a conserved Tyr-Xaa-Tyr motif (Tyr-319-Tyr-321) in a position exactly corresponding to the activation motif of the mitogen-activated protein kinase (MAP kinase) family (Thr-Xaa-Tyr). In a molecular model of the catalytic domain of DYRK1A, the orientation of phosphorylated Tyr-321 is strikingly...

Geometries of aromatic/aromatic interactions in crystal structures small molecules from the Cambridge Structural Database (CSD) (benzene/benzene, toluene/toluene, and p-phenol/p-phenol interactions) protein Protein Data Bank (PDB) (Phe/Phe Tyr/Tyr were studied compared. The data show a larger influence packing/surrounding, more than substituents, on geometries interactions. While CSD preference...