Full stops and commas are punctuation marks. A full stop ends a sentence. A comma shows a pause, breaks up a list or separates parts of a sentence. Full stops are easy. They always go at the end of a ...

Abstract: Sixth-generation (6G) mobile communication networks are expected to have dense infrastructures, large antenna size, wide bandwidth, cost-effective hardware, diversified positioning methods, ...

February 7, 2026 • The policy change orders the removal of any post made by official State Department accounts on X before President Trump returned to office in 2025.