Launch This Resource. In 1950, Erwin Chargaff published a paper stating that in the DNA of any given species, the ratio of adenine to thymine is equal, as is the ratio of cytosine to guanine. This became known as Chargaff's ratio, and it was an important clue for solving the structure of DNA. Downloads. Downloads.
The average annual overhead for a dental office (not including the dentistâs salary) is $350,000. The average clinician works 33 hours per week for 48 weeks, which is 1,600 hours per year. By taking the $525,000 average annual revenue and dividing it by 1,600 hours, we get $312 an hour to keep the office operating profitably.
The cost of surgery, which included capital, staff and overhead, and patient care consumable costs was assessed prospectively in 8 randomly sampled patients over a 3-month period. Cost efficiency refers to cost per cataract surgery. Cost effectiveness refers to cost per successful cataract surgery.uccessful surgery was defined as BCVA of better than 6/12 at 3 months post-operatively. Costs The cost categories identified and measured were: 1. Capital costs which included building and capital equipment. All capital costs were annualised to year 2000. Building cost was amortised over 30 years at 3% discount rates.