Learn More
Reversible integer mapping is essential for lossless source coding by transformation. A general matrix factorization theory for reversible integer mapping of invertible linear transforms is developed in this paper. Concepts of the integer factor and the elementary reversible matrix (ERM) for integer mapping are introduced, and two forms of ERM—triangular(More)
Auxin is one of the central hormones in plants, and auxin response factor (ARF) is a key regulator in the early auxin response. MicroRNAs (miRNAs) play an essential role in auxin signal transduction, but knowledge remains limited about the regulatory network between miRNAs and protein-coding genes (e.g. ARFs) involved in auxin signalling. In this study, we(More)
In this paper, an image denoising operator de ned by a non-linear partial di erential equation(PDE) is presented. Similar to the operators proposed by Perona, Malik and Catt e et al., it can remove noise, enhance step-like edges and keep the locality of the edges. Its extra ability is to keep thin edges. The criterion for stopping time is also investigated.(More)
How plant gene expression respond to grazing defoliation is critical for plant re-growth, survival, and composition in the natural and dairy farming grassland environments. Rice, with genome sequence available, was used as a model plant to study grazing-induced pathway selections. When seedlings were 18 cm in height, the top 12 cm was removed by simulated(More)
We have previously demonstrated that chronic hyperglycemia per se decreases GLUT4 glucose transporter expression and plasma membrane content in mildly streptozotocin- (STZ) diabetic rats (Biochem. J. 284, 341-348, 1992). In the present study, we investigated the effect of an acute rise in glycemia on muscle GLUT4 and GLUT1 protein contents in the plasma(More)
AIM The purpose of this study was to investigate the expression of neuropeptide Y (NPY) and pro-opiomelanocortin (POMC) in the hypothalamic arcuate nucleus of intrahepatic cholestasis pregnant (ICP) offspring. METHODS The model of ICP rats was established by injecting s.c. 17α-ethinyl estradiol. The expression of NPY and POMC in female offspring was(More)
This paper presents an algebraic approach to construct M-band orthonormal wavelet bases with perfect reconstruction. We first derive the system of constraint equations of M-band filter banks, and then an algebraic solution based on matrix decomposition is developed. The structure of the solutions is presented, and practical construction procedures are(More)