Abstract: It is shown that collateralized debt obligations (CDOs), which are complex basket credit derivatives depending on a large number M of firms (M ≥ 100 is typical in most contexts), can be priced in a mathematically consistent and computationally efficient manner within the affine Markov chain (AMC) framework for multifirm credit migration introduced in a companion paper [Hurd and Kuznet...

Automated grading of colon biopsy images across all magnifications is challenging because tailored segmentation and dependent features on each magnification. This work presents a novel approach robust magnification-independent cancer framework to distinguish into four classes: normal, well, moderate, poor. The contribution this research develop magnification invariant hybrid feature set compris...

A circular sector-shaped dipole antenna with meandered arms based on an artificial magnetic conductor (AMC) is proposed in this study. compact unit cell of the AMC operating within 19–485 MHz designed using a ferrite material, which exhibits high-permeability characteristics high-frequency (HF), very-high-frequency (VHF), and ultra-high-frequency (UHF) bands. The configuration optimally binary ...

Automatic modulation classification (AMC) aims to automatically identify the type of a detected signal in an intelligent wireless receiver, such as software-defined radio (SDR). Recently, deep learning-based methods convolutional neural networks have been applied AMC, showing high-accuracy performance. However, earlier studies do not consider various degradations that can possibly occur during ...

Organisational arrangements to coordinate and facilitate community action can be crucial to the functioning of equitable and sustainable resource management systems. This point has been well established in over a decade of research on common property resource management (Berkes and Farvar 1989, Alcorn 1995, Berkes and Folke 1998, Ostrom 1998, Ostrom 1999) and social capital (summarised by Flora...

The cndothelial cells of cerebral microvessels constitute a major site o f the blood-brain barrier. This barrier has physical and 'enzymic' components which together maintain the metabolic environment of the central nervous system. Major peptidase activities in cerebral microvessels are thought to be due to angiotensin-converting cnzymc (ACE) [ I ] and aminopeptidase(s) [2]. Although these enzy...

BACKGROUND Medullary carcinoma (MC) of the breast is associated with favorable prognosis compared with other histological types, despite high nuclear grade, fast proliferation and lack of steroid hormone receptor expression. We retrospectively evaluated the clinical relevance of selected immunohistochemical features of tumors in three cohorts of patients with typical medullary (MC), 'atypical' ...