Abstract: In one or more implementations, a method and system are disclosed in which at least one processor receives information associated with an upcoming arthroplasty and demographic factors of a patient in the upcoming arthroplasty. The processor(s) access i) procedure information representing arthroplasty previously performed for each of a plurality of patients and ii) implant information representing types and sizes of implants from a plurality of manufacturers. Further, the processor(s) determine respective unadjusted probabilities of each of a plurality of implant size options within a range of implant sizes, based on i) of at least one statistical model, ii) the accessed procedure information and the implant information, and iii) the demographic factors of the patient.

Abstract: A method of and apparatus for sampling granular material where a substantially vertical sampling tube is subjected to axial, and/or rotational oscillations to reduce the vertical vector component of the friction force between the granular material and the tube to be substantially equal to the weight of an elemental disc of the material in the sampling tube. The acceleration force on the disc is substantially zero and the material has no pressure gradient or bulk density gradient.