Theories must stand up to practical testing, and this is especially true in physics. Researchers from Johannes Gutenberg University Mainz (JGU), Texas A&M University, Brookhaven National Laboratory, ...

Two simple and selective spectrophotometric methods, ratio difference and derivative ratio, were developed and validated for the simultaneous determination of etoricoxib and tramadol in binary ...

This study develops a method to determine toricity ratios used by arbitrary toric intraocular lens calculators. Access to this information allows for the improvement of refractive results. We derive ...