Financial word of the day: Heteroscedasticity — meaning, usage, and why it matters more than ever

Heteroscedasticity describes a situation where risk (variance) changes with the level of a variable. In financial models, this means volatility is not constant. Most pricing and forecasting models ...
National Basketball Association

Consistency, perseverance, confidence – Pistons use familiar recipe to add another win

When the Pistons were losing 28 straight games two years ago – your reminder that two years is an epoch in the NBA – it served as testament to the enduring adage that young teams get beat and teams ...
The Citizen

Will Loyiso Masuku’s faction use a motion of no confidence to strike Dada?

The ANC in the City of Johannesburg has agreed to defend Dada Morero in an upcoming motion of no confidence, but that might not be enough to keep Morero in the mayoral chair until the local government ...
Bloomberg L.P.

China Issues Draft Rules to Govern Use of Human-Like AI Systems

China plans to tighten rules around the use of human-like artificial intelligence by requiring providers to ensure their services are ethical, secure and transparent ...
TechCrunch

Roblox expands use of age-estimation tech and introduces standardized ratings

Amid lawsuits alleging child safety concerns, online gaming service Roblox announced on Wednesday that it’s expanding its age-estimation technology to all users and partnering with the International ...
Morningstar

CompTIA AI Prompting Essentials elevates confidence, efficiency and effectiveness for workers using artificial intelligence on the job

DOWNERS GROVE, Ill., Aug. 20, 2025 /PRNewswire/ -- A new learning resource to help people raise their skills, knowledge and confidence to work with artificial intelligence (AI) is available from ...
Scientific Research Publishing

Bayesian Interval Estimation of the Prevalence Rate Using Pool Testing Strategy with Retesting ()

Mathematics Department, Egerton University, Njoro Nakuru, Kenya. Bayesian techniques have been applied in many epidemiological settings, such as disease monitoring, outbreak simulation, and prevalence ...
The Lancet

Intention-to-diagnose and distinct research foci in diagnostic accuracy studies

kDivision of Infectious Diseases, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA lDivision of Pediatric Infectious Diseases, Department of Pediatrics, ...
The New York Times

With No-Confidence Vote, Israeli Cabinet Moves to Fire Attorney General

Benjamin Netanyahu, the Israeli prime minister, contends the top lawyer sought to undermine him. His critics in Israel call it part of a purge of those he considers disloyal. By Aaron Boxerman ...
IEEE

Interval Estimation for Uncertain Discrete-Time Switched Linear Systems Using $H_{\infty}$ Observer and Zonotopic Techniques

Abstract: This work proposes an interval state estimation method for discrete-time switched linear systems (SLS) systems subject to bounded uncertainties. our task demands us to calculate a zonotopic ...
News Medical

New AI model can estimate biological age using blood samples

We all know someone who seems to defy aging-people who look younger than their peers despite being the same age. What's their secret? Scientists at Osaka University (Japan) may have found a way to ...