Strictly speaking , matrix management is the practice of managing individuals with more than one reporting line ( in a matrix organization structure ) , but it is also commonly used to describe managing cross functional , cross business group and other forms of working that cross the traditional vertical business units â often silos - of function ...
Echinoderms can have ambulacral parts that include ossicles, plates, spines, and suckers. For example, sea stars or star fish have an ambulacral groove on their oral side (underside).This ambulacral groove extends from the mouth to the end of each ray or arm. Each groove of each arm in turn has four rows of hollow tube feet that can be extended or withdrawn.Opposite the ambulacral groove is an ambulacral ridge on the aboral side of each ray, known as an ambulacrum.chinoderms can have ambulacral parts that include ossicles, plates, spines, and suckers. For example, sea stars or star fish have an ambulacral groove on their oral side (underside).
The Roman hand abacus had a lower groove which represents units and the beads in the upper grooves were in fives such that five units, five tens and so on. The groove values were marked by roman numerals.This was designed to bi-quinary coded decimal system.his counting board was the Roman hand abacus. Structure of Roman Abacus. The Roman Abacus was made of metal plate and this was where the beads ran in slots. The size of the abacus was such that it can fit into the pocket of a modern shirt.