Abstract: Processing an event signifying a condition in a computer system is described. The computer system maintains an invocation stack which includes a plurality of stack frames. Such event processing operates by selecting a stack frame from the invocation stack, and then determining whether a user specified event processing procedure capable of processing the event has been registered with the selected stack frame. If a user specified event processing procedure has been so registered, then the event is processed using the user specified event processing procedure as specified by a set of rules and options defined for the disposition and/or processing of the specific event. Optionally, it is then determined whether a language specific event processing procedure capable of processing the event has been registered with the selected stack frame.

Abstract: Antimicrobial proteins capable of isolation from seeds of Heuchera or Aesculus show a wide range of antifungal activity and some activity against Gram-positive bacteria. DNA encoding the proteins may be isolated and incorporated into vectors. Plants transformed with this DNA may be produced. The proteins find commercial application as antifungal or antibacterial agents; transformed plants will show increased disease-resistance.