I . Effects of feeding liquid milk-substitute to young calves either by nipple-pail or open-bucket o n the rumen by-pass and on the rate of passage were studied. z. Sixteen Holstein calves, aged I week initially, were used in three experiments in which calves were slaughtered after they were given liquids (milk-substituteand water) containingchromic oxide and SrCI, .6H,O as a tracer either by t...

We present a finite representation of all substitutable services P ′ of a given service P . We show that our approach can be used for at least two applications: (1) given a finite set of services P = {P1, ..., Pn}, we provide a representation of all services P ′ that can substitute every Pi ∈ P, and (2) given a service P ′′ that cannot substitute a service P , we find the most similar service P...