introduction in ct imaging, metallic implants inside the tissues cause metal artifact that reduce the quality of image for diagnosis. in order to reduce the effect of this artifact, a new method with more appropriate results has been presented in this research work. materials and methods the presented method comprised of following steps: a) image enhancement and metal areas extraction, b) sinog...

In this dissertation some advanced methods for extracting sources from single and mul­ tichannel data are developed and utilized in biomedical applications. It is assumed that the sources of interest have periodic structure and therefore, the periodicity is exploited in various forms. The proposed methods can even be used for the cases where the signals have hidden periodicities, i.e., the peri...

In the present paper, it is studied the price relations and how price is transmitted between the producer level and the consumer level for lamb meat. Data used in the research include consumer price index and producer price index for lamb meat covering monthly periods of 91 months since March 2001 through September 2008. Johansen's and Juselius's cointegration method and Granger causality test ...

Let M be a geometrically irreducible smooth projective variety, defined over a finite field k, such that M admits a k–rational point x0. Let ̟(M,x0) denote the corresponding fundamental group–scheme introduced by Nori. Let EG be a principal G–bundle over M , where G is a reduced reductive linear algebraic group defined over the field k. Fix a polarization ξ on M . We prove that the following thr...

Consider RO (G)-graded an cohomology theory k G. We shall not insist on a detailed definition; suffice it to say that there is a suspension isomorphism for each real representation of G. The first examples were real and complex equivariant K-theory KO and K G. The next example was equivariant stable , cohomotopy theory ~G" There are RO(G)-graded ordinary cohomology theories with coefficients in...

INTRODUCTION: Due to heart motion, cardiac MRI is made difficult and image acquisitions have to be synchronized with heart activity to suppress cardiac motion artifacts. Electrocardiogram (ECG) is therefore the state-of-the-art signal [1], each MRI acquisition being launched after a fixed delay following a QRS complex detection. The complex MRI environment highly distorts ECG signals, due to th...