This paper presents a new class AB programmable square-root domain (SRD) filter. The main advantages of the proposed circuits are low power consumption, wide input dynamic range with small standby current and potential for low-voltage operation. Simulation results confirm the validity of the proposed design technique and the high performance of the proposed circuits. Key-Words: Square-root doma...

Many class B designs can be operated in class A at low power levels if the quiescent current is increased. However, this often worsens the distortion characteristics of the output stage, particularly at intermediate (and audibly important) power levels, by displacing the crossover point to a region where the transfer slope is much steeper, and the crossover discontinuity therefore much more pro...

A CMOS class AB current mirror whose supply requirements are restricted to one threshold voltage plus three saturation voltages is presented. The circuit uses two poly resistors and two auxiliary differential amplifiers to achieve low-voltage operation, as well as control of quiescent currents and input bias voltage. A design example is implemented in a 0.5-μm standard technology and uses a 1-V...

Morphological diversity of dendrites contributes to specialized functions of individual neurons. In the present study, we examined the molecular basis that generates distinct morphological classes of Drosophila dendritic arborization (da) neurons. da neurons are classified into classes I to IV in order of increasing territory size and/or branching complexity. We found that Abrupt (Ab), a BTB-zi...

In this paper we present a novel CMOS second generation voltage conveyor (VCII) topology featuring wide swing both at the X terminal and Z terminal. The VCII consists of regulated common gate configuration Y current input class-AB complementary-MOS closed loop output follower that ensures buffering action between terminals. Spice simulation results using AMS 0.35 μm with ±0.9 V supply are provi...

We determined the seroprevalence of hepatitis A virus antibodies (HAV Ab) among 296 Egyptian children aged 2.5-18 years of different social classes to ascertain whether to give HAV vaccine early in life or to leave children to acquire natural immunity. Overall 61.4% were seropositive for HAV Ab. There was a significant increase in the seroprevalence of HAV Ab with higher age and lower social cl...

we prove that the class of profinite groups $g$ that have a factorization $g=ab$ with $a$ and $b$ abelian closed subgroups, is closed under taking strict projective limits. this is a generalization of a recent result by k.h.~hofmann and f.g.~russo. as an application we reprove their generalization of iwasawa's structure theorem for quasihamiltonian pro-$p$ groups.

Antibody-mediated rejection (AMR) of solid organ transplants (SOT) is characterized by damage triggered by donor-specific antibodies (DSA) binding donor Class I and II HLA (HLA-I and HLA-II) expressed on endothelial cells. While F(ab')2 portions of DSA cause cellular activation and proliferation, Fc regions activate the classical complement cascade, resulting in complement deposition and leukoc...