IN ecological work it is often necessary to have comparative estimates of the numbers of organisms in a large number of samples. An exact valuation may not be required, but an approximate numerical ...

Apple‘s Q3 FY’15 numbers beat market expectations on both earnings and revenues, driven by robust demand for the iPhone (59% year-over-year revenue growth), strong sales in Greater China (112% growth) ...

This paper presents the results of a study with two main objectives: (1) to investigate an extension of some principles recently developed in the theory of cluster sampling, and (2) to determine the ...