An intracellular bacterial infection in a plant or animal is treated by administration to a plant cell or animal cell of a particle to which an infectious bacteriophage is covalently attached, wherein the particle is internalized by the cell. The electromagnet includes a core and at least one winding disposed circumferentially about the core such that the winding extends at least one revolution around the core. The present invention can simplify the processing for the terminal and save the resources of the system. The element has a tubular wall defining a bore for receiving the handle member, and an outer wall extending over a portion of its length. One or more embodiments of the invention disclose a system for creation of a laser-induced damage by generation of breakdowns at area where two laser beams intersect. The plurality of fields has a set of data associated with them.