Langerhans' cell histiocytosis can manifest as three distinct clinicopathologic entities: acute disseminated Langerhans' histiocytosis (previously known as Letterer-Siwe disease), unifocal Langerhans' cell histiocytosis (previously known as eosinophilic granuloma).
average handle time (AHT) Average handle time (AHT) is a call center metric for the average duration of one transaction, typically measured from the customer's initiation of the call and including any hold time, talk time and related tasks that follow the transaction. AHT is a prime factor when deciding call center staffing levels.
Market Absorption Rate. Barring such events as discovery of radon deposits or recognition of an area as a landmark district, the confluence of the market, the season and the economy determine the average length of time it takes to sell a house.oss in a variable such as a major employer entering -- or leaving -- the area and the scale can tip toward sellers to make a fast market or toward buyers to create a slow market. The average time in a fast market might be 30 days and the average time in a slow market could be nine months.