𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Characterization of ovarian nuclei with the parameter of power ratio

✍ Scribed by Hai-Shan Wu; Joan Gil; Liane Deligdisch; Tamara Kalir

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
138 KB
Volume
64
Category
Article
ISSN
1059-910X

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The nucleoli and chromatin clumps of ovarian cells contain important features in discriminating malignant cells from normal ones. In geometric properties, the ovarian nucleoli and chromatin clumps appear as irregularly shaped dark spots in the nuclear images from specimens immunohistochemically stained with antibody to Mib‐1. Malignant cells often have more active and larger nucleoli and chromatin clumps. However, estimating the size of the nucleoli or chromatin clumps is a difficult task since it is not easy to recognize and accurately separate the regions of nucleoli and chromatin clumps from the rest of the nuclei that are highly irregular and variant in contents and intensities. In this paper, we develop a method to derive a parameter called power ratio that is proportionally related to the size of nucleoli and chromatin clumps based on an ideal nuclear model without the region segmentation of nucleoli or chromatin clumps. Results of characterization of the parameter and comparison between malignant and normal cells are provided. Microsc. Res. Tech. 64:287–292, 2004. © 2004 Wiley‐Liss, Inc.

📜 SIMILAR VOLUMES

Novel approach to the design of unequal
Novel approach to the design of unequal power divider with high-dividing ratio
✍ Tan Yang; Jian-Xin Chen; Quan Xue 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 233 KB

## Abstract This letter presents the design of an unequal Wilkinson power divider with a high‐dividing ratio. By proportionally reducing the impedances in both arms and employing T‐shaped structure to replace quarter wavelength transmission lines with very low characteristic impedances, the propose

Potassium–sodium ratio for the character
Potassium–sodium ratio for the characterization of medicinal plant extracts with diuretic activity
✍ K. Szentmihályi; Á. Kéry; M. Then; B. Lakatos; Z. Sándor; P. Vinkler 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 92 KB 👁 2 views

Atomic emission spectrometry was applied for the determination of potassium and sodium concentrations in crude drugs and decoctions. The content of the two elements and potassium-sodium ratios of medicinal plant extracts were measure as a basis for evaluating diuretic activity. The potassium-sodium

Characterization of the Domain of Fracti
Characterization of the Domain of Fractional Powers of a Class of Elliptic Differential Operators with Feedback Boundary Conditions
✍ Takao Nambu 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 449 KB

We study a class of elliptic differential operators with feedback boundary conditions of the Dirichlet type and the generalized Neumann type. The domain of the fractional powers of these operators is completely characterized in terms of various Sobolev spaces. The results are an extension of the sta

Simple method for determining the parame
Simple method for determining the parameters of a static NMR spectrum of nuclei with half-integer spin in powder samples at a single frequency
✍ P. Granger 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 198 KB

## Abstract A simple method, which does not use any computer calculations, is described that allows the determination of the asymmetry parameter, the chemical shift and the quadrupole coupling constant directly from the experimental NMR spectra of quadrupolar nuclei with half‐integer spin in powder