Image analysis and computer vision are interested in suitable methods to solve the nonlinear equations. Coordinate x??for f (x)?= 0?is crucial because each equation can be transformed into f (x)?= 0. A novel method of...Image analysis and computer vision are interested in suitable methods to solve the nonlinear equations. Coordinate x??for f (x)?= 0?is crucial because each equation can be transformed into f (x)?= 0. A novel method of Hurwitz-Radon Matrices (MHR) can be used in approximation of a root of function in the plane. The paper contains a way of data approximation via MHR method to solve any equation. Proposed method is based on the family of Hurwitz-Radon (HR) matrices. The matrices are skew-symmetric and possess columns composed of orthogonal vectors. The operator of Hurwitz-Radon (OHR), built from these matrices, is described. Two-dimensional data are represented by discrete set of curve??f points. It is shown how to create the orthogonal OHR operator and how to use it in a process of data interpolation. MHR method is interpolating the curve point by point without using any formula or function.展开更多
Senegenin has been shown to inhibit neuronal apoptosis,thereby exerting a neuroprotective effect.In the present study,we established a rat model of spinal cord contusion injury using the modified Allen＇s method.Three...Senegenin has been shown to inhibit neuronal apoptosis,thereby exerting a neuroprotective effect.In the present study,we established a rat model of spinal cord contusion injury using the modified Allen＇s method.Three hours after injury,senegenin（30 mg/g） was injected into the tail vein for 3 consecutive days.Senegenin reduced the size of syringomyelic cavities,and it substantially reduced the number of apoptotic cells in the spinal cord.At the site of injury,Bax and Caspase-3 m RNA and protein levels were decreased by senegenin,while Bcl-2 m RNA and protein levels were increased.Nerve fiber density was increased in the spinal cord proximal to the brain,and hindlimb motor function and electrophysiological properties of rat hindlimb were improved.Taken together,our results suggest that senegenin exerts a neuroprotective effect by suppressing neuronal apoptosis at the site of spinal cord injury.展开更多
文摘Image analysis and computer vision are interested in suitable methods to solve the nonlinear equations. Coordinate x??for f (x)?= 0?is crucial because each equation can be transformed into f (x)?= 0. A novel method of Hurwitz-Radon Matrices (MHR) can be used in approximation of a root of function in the plane. The paper contains a way of data approximation via MHR method to solve any equation. Proposed method is based on the family of Hurwitz-Radon (HR) matrices. The matrices are skew-symmetric and possess columns composed of orthogonal vectors. The operator of Hurwitz-Radon (OHR), built from these matrices, is described. Two-dimensional data are represented by discrete set of curve??f points. It is shown how to create the orthogonal OHR operator and how to use it in a process of data interpolation. MHR method is interpolating the curve point by point without using any formula or function.
基金supported by a grant from the Science and Technology Development Plan of Jilin Province of China,No.2011084
文摘Senegenin has been shown to inhibit neuronal apoptosis,thereby exerting a neuroprotective effect.In the present study,we established a rat model of spinal cord contusion injury using the modified Allen＇s method.Three hours after injury,senegenin（30 mg/g） was injected into the tail vein for 3 consecutive days.Senegenin reduced the size of syringomyelic cavities,and it substantially reduced the number of apoptotic cells in the spinal cord.At the site of injury,Bax and Caspase-3 m RNA and protein levels were decreased by senegenin,while Bcl-2 m RNA and protein levels were increased.Nerve fiber density was increased in the spinal cord proximal to the brain,and hindlimb motor function and electrophysiological properties of rat hindlimb were improved.Taken together,our results suggest that senegenin exerts a neuroprotective effect by suppressing neuronal apoptosis at the site of spinal cord injury.
