I work in signal processing and as a field of theory it presents no barriers to replication. My fiance is exiting chemistry academia due to an abusive professo

I work in signal processing and as a field of theory it presents no barriers to replication. My fiance is exiting chemistry academia due to an abusive professor. In the past they have wasted over a year of effort on one project trying to build off of prior work. The conclusion they ended up with is that the original work was fraudulent. No paper covers the inability to replicate the previous work. So what does this mean? The professors pushing the papers out are not doing their due diligence and there is no one else doing public checking. The loop is open. It is not science. That's the crisis.