Systems and methods for implementing and performing coaching-assisted content delivery and workflows are described. Preferably, the microorganisms are selected from the group consisting off bacteria, mycoplasmas, yeasts, fungi and viruses. In the preferred embodiment, the electric circuit includes a central processing unit which utilizes delay time counters to measure the length of time between signals. This nickel powder is manufactured by bringing a nickel powder containing sulfur and dispersed in a non-oxidizing gas atmosphere into contact with an oxidizing gas at a high temperature.