Abstract: A system may include a first wearable sensor in operable communication with a microcontroller. A system may include a second wearable sensor, wherein the microcontroller is configured to. A system may include receive a sensor signal from the first wearable sensor. A system may determine, based on the sensor signal, whether a collaborative interaction event occurred between the first wearable sensor and the second wearable sensor.

Abstract: A system may include a first wearable sensor in operable communication with a microcontroller. A system may include a second wearable sensor, wherein the microcontroller is configured to. A system may include receive a sensor signal from the first wearable sensor. A system may determine, based on the sensor signal, whether a collaborative interaction event occurred between the first wearable sensor and the second wearable sensor.

Abstract: A control assembly for an electrocoagulation cell (1) comprising a plurality of electrodes, a releasable connection means (6) between at least a selection of the electrodes and electrical connection means (9, 10, 9A, 10A) attached to the releasable connection means (6) which in use is connectable to a power supply (12). An electrocoagulation system comprising a plurality of electrodes (2), an electrolytic cell (1) having an internal chamber which contains the plurality of electrodes (2), and a power supply (12) connectable to a power source and also connectable to the electrodes said power supply having control means (14, 24) for providing a selected constant output current or selected constant output voltage whereby the electrolytic cell may process samples of varying characteristics.