A high DC-gain low-power current recycling amplifier using positive-feedback technique is presented. In the proposed amplifier, the positive-feedback signal used to enhance the DC-gain is derived from the extra nodes created by cascoding. Positive-feedback offers the ability of obtaining a very high DC-gain, ideally infinite gain, without affecting high frequency performance and stability. Unde...

Ubiquitous Health Telemonitoring Systems collect low level data with the aim to ameliorate the health condition of patients. Models from data mining are created to compute indicators regarding their status and activity (habits, abnormalities). Models can also help generate feedbacks and recommendations for patients as well as for remote formal and informal care givers. Essential features are th...

Four circuit schemes that use partial positive feedback for gain enhancement in CMOS OTAs are examined. These circuit schemes are classiied as type I and type II circuits. Type I circuits use a diierential input pair with positive feedback and type II circuits use a active load with positive feedback. As the primary emphasis of these circuits is for micropower operation, the circuits have been ...

cumulating evidence points to a key role for cd8+ t cells in the pathogenesis of multiple sclerosis.cd8 expression level was believed to be present constantly on the surface of human peripheral blood t cells. however, it was shown that peripheral blood lymphocytes may be divided by the level of cd8 expression, into cd8+high and cd8+low t cells. now it is well established that the cd8low populat...