Abstract: Vector addition systems with states (VASS), also known as Petri nets, are a popular model of concurrent systems. Many problems from many areas reduce to the reachability problem for VASS, ...

Add Yahoo as a preferred source to see more of our stories on Google. The National Council on Problem Gambling (NCPG) announced a new, easy-to-recall phone number Thursday for those in need of help ...

Ewan Gleadow is a breaking news reporter for Raw Story based in the United Kingdom. He previously worked for The Daily Mirror and its sister site, The Mirror US. He also runs the music and culture ...

You finish a drink at the bar, friends arrive and a table opens. You grab your glass, head to the dining room and ask a simple question: "Can you transfer my tab?" For bartenders, that routine request ...

Understand vector addition through real physics problem examples. This video explains how vectors combine using clear diagrams and practical applications, making the concept easy to follow for ...

A classic apple cake gets a surprising upgrade thanks to one unexpected ingredient that enhances flavor, texture, and overall richness. Trump vows 'big retaliation' as 'sell America' list grows ...

A major global study suggests that a hidden mismatch between two common blood tests could quietly signal serious trouble ahead. When results from creatinine and cystatin C—two markers used to assess ...