Background and Objectives:Breast cancer is the most common cancer among women worldwide. Fine needle aspiration biopsy (FNAB) is one of the methods of breast biopsy which is fast, easy and cost effective. The aim of this study was to evaluate the concordance rate between pathologic results of sonography or stereotaxy guided FNAB and guided core needle biopsy (CNB) in the evaluation of breast le...

The frequency of giant arcs— highly distorted and strongly gravitationally lensed background galaxies— is a powerful test for cosmological models. Previous comparisons of arc statistics for the currently favored concordance cosmological model (a flat lambda-dominated universe) with observations have shown an apparently large discrepancy. We present here new ray-shooting results, based on a high...

The concordance genus of a knot is the least genus of any knot in its concordance class. Although difficult to compute, it is a useful invariant that highlights the distinction between the three-genus and four-genus. In this paper we define and discuss the stable concordance genus of a knot. The stable concordance genus describes the behavior of the concordance genus under connected sum, and ca...

the matrix functions appear in several applications in engineering and sciences. the computation of these functions almost involved complicated theory. thus, improving the concept theoretically seems unavoidable to obtain some new relations and algorithms for evaluating these functions. the aim of this paper is proposing some new reciprocal for the function of block anti diagonal matrices. more...