Scientific journals don't always contain articles, or papers. My understanding is being published on arxiv.org does not mean it is currently in a scientific jo

Scientific journals don't always contain articles, or papers. My understanding is being published on arxiv.org does not mean it is currently in a scientific journal. Being in a scientific journal does not mean it is on arxiv.org. But, being published on arxiv.org is usually a precursor to the journal publication, passing peer review and the journal 's standards.