OBJECTIVE This study attempts to evaluate the GFAP and alpha1a-AR staining and morphometrical nuclear features of oligodendrogliomas and their prognostic implications as compared to present histopathology classification and their survival outcome. STUDY DESIGN Surgical specimens from 24 patients with oligodendrogliomas during the period 1981-2000 were included. These cases were classified int...

We consider the problem of removing c points from a set S of n points so that the remaining point set is optimal in some sense. Definitions of optimality we consider include having minimum diameter, having minimum area (perimeter) bounding box, having minimum area (perimeter) convex hull. For constant values of c, all our algorithms run in O(n log n) time.

Otoliths are considered as very useful structures of fishes for various studies. This investigation aimed to compare the morphometric parameters between the right and left otoliths of male and female specimens of four species of the fishes belonging to the family Carangidae from the northern Persian Gulf. The morphometric parameters such as weight, length, width, area and perimeter of sagittal ...

Otoliths are considered as very useful structures of fishes for various studies. This investigation was aimed to compare morphometric parameters between right and left otoliths of males and females fishes amongst four species belong to the family Carangidae from the northern Persian Gulf. The morphometric parameters such as weight, length, width, area and perimeter were measured and then compar...

We derive area limit laws for the various symmetry classes of staircase polygons on the square lattice, in a uniform ensemble where, for fixed perimeter, each polygon occurs with the same probability. This complements a previous study by Leroux and Rassart, where explicit expressions for the area and perimeter generating functions of these classes have been derived. MSC numbers: 82B41, 05A16, 3...

Under typical physical conditions, the solution of the capillarity equation for a tube of circular section D will always exceed over D the solution obtained for a concentric tube of the same material and larger radius. We address here a question raised by M. Miranda, as to whether a solution over a general domain D0 will exceed, over that section, the solution over any domain D1 strictly contai...

Invasive alien species are responsible for several negative impacts worldwide. Managing biological invasions is often difficult and the success rate quite low, but with good planning it possible to achieve results. Besides employing correct methods techniques, an overall strategy based on landscape dynamics expected spatial patterns can be fundamental success. The decision of where act embedded...