The phrase 'has been advancing since' is correct and can be used in written English.
It is used to refer to an ongoing action that started in the past and is continuing up to the present day. For example: The technology industry has been advancing since the invention of the computer.
The idea that spending reductions slow, rather than spur the economy is what Paul Krugman, The Times editorial board, and many liberal economists have been advancing since the downturn.
Guardian Australia asked the immigration minister's office whether it could provide some evidence to indicate that the policies, procedures and oversight of seclusion use had been advanced since Ariak was held in detention in 2011.
The criteria for miRNAs characterization and annotation in plants have been advanced since plants have relatively large and complex sRNA populations within which miRNAs are often a minority [ 51].
Research into the toxicity of inhaled CNTs has been advancing rapidly since the publication of two articles by Takagi et al. and Poland et al. in 2008; the revelation that intraperitoneal administration of CNTs causes inflammation and carcinogenesis attracted worldwide attention.
The spring thaw has been advancing one day a year since 1988, according to Nasa scientists.
Since the dawn of the Industrial Revolution, energy consumption per person in the U.S., has crept ahead at 3% per year, while computer memory per person has been advancing at 67% a year since the 1960s.
The increased spending anticipated from the pay hikes would give a badly needed boost to an economy that has been advancing only in fits and starts since the recession ended in June 2009.
Long before September 11th, but with increasing stridency since then, he has been advancing a theory about the "pivotal" role that Britain can play in world affairs.
This information-processing idea from biological evolution has been transferred to computers, and has been advanced significantly since the early forties to the point of last week's publication of how artificial neural networks "see the world".
Iraqi forces backed by a U.S.-led U.S.-ledn have been advancoalitionosul since thaveffensive started in Octobeenof 2016.
