IntroductionThere are limited available data on the prognostic implications of locoregional recurrence (LRR) after nipple-sparing mastectomy (NSM) and immediate reconstruction. In this study, we investigated patterns prognosis associated with LRR following treatment approach for breast cancer.MethodsA total 1696 patients primary cancer who underwent NSM reconstruction from March 2003 to Decembe...

We investigate the statistics of recurrences to finite size intervals for chaotic dynamical systems. We find that the typical distribution presents an exponential decay for almost all recurrence times except for a few short times affected by a kind of memory effect. We interpret this effect as being related to the unstable periodic orbits inside the interval. Although it is restricted to a few ...

In this paper, we computed general interval indicators of availability and reliability for systems modelled by time non-homogeneous semi-Markov chains. First, considered duration-dependent extensions the Interval Reliability then, determined an explicit formula with a given window containing point. To make computation availability, was derived involving transition probabilities function. Both f...

background and aim: carcinoma of the uterine cervix is a significant cause of mortality because of malignancy in women. radiotherapy is a major treatment modality for invasive cervical cancer with good treatment outcome in early-stage patients. however, substantial treatment failures still occur in the advanced-stage patients. in this case report a long term follow up of a 58 years old woman wi...

We investigate polynomials satisfying a three-term recurrence relation of the form Bn(x) = (x − βn)Bn−1(x) − αnxBn−2(x), with positive recurrence coefficients αn+1, βn (n = 1, 2, . . .). We show that the zeros are eigenvalues of a structured Hessenberg matrix and give the left and right eigenvectors of this matrix, from which we deduce Laurent orthogonality and the Gaussian quadrature formula. ...