Background Hepatitis B surface antigen (HBsAg) can be derived from intrahepatic covalently closed circular DNA (cccDNA) and integrated hepatitis B virus (HBV) DNA (iDNA). Objective We evaluated the ...

Abstract: This paper introduces a two-dimensional orthogonal pattern division multiple access (OPDMA) communication method based on optimal frequency hopping patterns and explores the use of ...

Learn how to use Grok 4.3 in 2026 with this beginner's guide covering advanced workflows, task automation, and role-based ...

Google says attackers are using AI for zero-day research, malware development, reconnaissance, and access to premium AI tools ...