Abstract: A treatment management apparatus for managing treatment administered to livestock is provided. The treatment management apparatus may comprise a wireless communication interface configured to receive, from a user system, treatment data representing an animal to be treated and a treatment to be administered; an animal detector configured to detect placement of the treatment management apparatus against a surface of the animal; and an actuation monitor configured to detect actuation of a treatment initiation component to initiate administration of the treatment of the animal; wherein the wireless communication interface is further configured to send, to the user system, administration data regarding the administration of the treatment, wherein the administration data represents one or more events associated with the animal detector and the actuation monitor.

Abstract: The present invention provides devices and methods for micro-scale simulated moving bed chromatography (SMB) for continuous preparation of analytic quantities of highly pure fractions of target molecules. The present apparatus and method of the invention is adapted in a preferred embodiment to separations by affinity chromatography involving three discontinuous liquid flow loops. An alternative embodiment of affinity chromatography utilizes standard SMB operating under isocratic conditions.

Abstract: An active material and light emitting device comprises an ultrasonic atomizer assembly and a light emission device. The active material and light emitting device are operated such that the active material is periodically or aperiodically dispensed and the light emitting device flickers to simulate a real candle.

Abstract: A drive circuit for and method of driving a piezoelectric actuator utilizes an impedance coupled to the piezoelectric actuator, wherein the impedance and the piezoelectric actuator together form a tank circuit that has a resonant frequency. A first circuit is provided that drives the actuator at the resonant frequency and a second circuit is further provided that selectively operates the first circuit in one of at least two modes of operation including a first mode that causes the actuator to be energized at a first duty cycle and a second mode that causes the actuator to be energized at a second duty cycle.

Abstract: A pump supplies a variable pressure to an occluding cuff of a blood pressure monitor. This pump includes a pumping member that is driven through a stroke in response to a drive signal having a fixed frequency but a variable duty cycle such that the length of the stroke is variable in response to variations in the duty cycle. The drive signal is generated at a selected driving frequency which is outside of and greater than the measuring frequency range of the blood pressure monitor. In this way, strokes of the pump do not cause pressure variations in the cuff within the measuring frequency range.