Stochastic volatility is the unpredictable nature of asset price volatility over time. It's a flexible alternative to the Black Scholes' constant volatility assumption.

Background The National Heart Failure Audit gathers data on patients coded at discharge (or death) as having heart failure as ...

Objectives In patients with chronic obstructive pulmonary disease (COPD), severe exacerbations (ECOPDs) impose significant morbidity and mortality. Current guidelines emphasise using ECOPD history to ...

Abstract: The existing methods for distribution system reliability assessment mainly adopt the multiple iteration calculation modes of traversal search of failure scenarios one by one to get the ...

City officials have called for a hearing investigating Waymo after the company’s self-driving taxis suffered widespread problems during a power outage. By Soumya Karlamangla San Francisco officials on ...

This article presents an application for failure probability in long-pipeline gas systems through the development of trend curves over time for the attributes of corrosion wear, which are related to ...

Consumer Reports uses data to compile an annual list of the most reliable new car brands. Some brands on the list are obvious while others are moving up reliability rankings. Reliability is a huge ...

Abstract: The paper presents a Python software tool to generate a wireless sensor network (WSN) with the given number of sensors for forestry area monitoring and evaluate the WSN reliability ...

Objective: To evaluate the association between the hemoglobin glycation index (HGI) and ejection fraction (EF) categories in hospitalized heart failure (HF) patients and to investigate the ...

Dismissed indictments; two grand juries refusing to issue new charges; a judge blocking key evidence from being used for a fresh case: in trying to prosecute key targets of President Donald Trump, the ...