Abstract: Techniques for patient medical care are disclosed. These techniques include identifying a plurality of rules relating to a purchase of a medical item. The techniques further include selecting a first rule, of the plurality of rules, to apply to the purchase, including generating a specificity score for each of the plurality of rules, based on setting one or more bit values in each specificity score using matching criteria between the respective rule and the purchase and comparing the specificity scores for the plurality of rules. The techniques further include facilitating supply of the medical item to a patient based on completing the purchase using the selected first rule.

Abstract: A moving slide has a pair of flexible curtains mounted to its front and rear surfaces, the curtains being attached at opposite ends to front and rear support posts mounted to a base. The support posts have upper and lower pulleys. A cable is connected to the front of the slide and runs in this fashion: first horizontally across the top pulley, thence to the lower pulley, thence to the other support post, thence upwardly and finally around to the horizontal portion which connects to the rear of the slide. The cable is tensioned to a predetermined load which remains constant throughout the slide travel as the front and rear horizontal portions of the cable move. The flexible curtains are suspended from, but are not rigidly attached to, the cable. Thus, as the curtains expand and contract, the moving horizontal portions of the tensioned cable ride smoothly through the curtains, maintaining curtain support.

Abstract: This invention relates to an improved apparatus and process for controlling heat input to a fractionation tower so that a proper energy balance is maintained. The apparatus and method for controlling a fractionation tower and process wherein feed and heat flow into the tower and feed is distilled and separated into distillate and bottoms, said distillate flowing from the tower through an overhead line into a condenser where it is allowed to condense before it is drawn off as product with a portion of this product being returned to the tower as reflux, and said bottoms being allowed to at least partially collect in the tower thereby establishing a liquid level which is allowed to fluctuate within predetermined limits, which method comprises generating and using the signal:Q.sub.I =Kp(K.sub.R +K.sub.D -K.sub.F)whereQ.sub.I is the heat required by the fractionation tower;Kp is the pressure controller output signal;K.sub.R is the reflux flow rate signal;K.sub.D is the distillate flow rate signal;K.sub.