the whole plant of biophytum petersianum was extracted with a mixture of water – alcohol (1:1) to evaluate its relaxant effect on aorta rings. in isolated wistar rat tissue, the hydro-ethanolic extract (0.1; 0.25 and 0.5 mg/ml) non-competitively antagonized calcium chloride and high-k + - induced aorta contractions in a concentration-dependent manner. moreover, the inhibition of noradrenaline–i...

A bound-exciton-induced current bistability is observed under forward bias in an efficient silicon light-emitting diode at low temperatures. Two stable states of the S-type differential conductivity correspond to empty and filled states of bound excitons, respectively. The relationship between the current–voltage characteristic and the bound-exciton population can be accounted for using a rate ...

A recent experiment Mourik et al. [Science 336, 1003 (2012)] on InSb quantum wires provides possible evidence for the realization of a topological superconducting phase and the formation of Majorana bound states. Motivated by this experiment, we consider the signature of Majorana bound states in the differential tunneling conductance of multisubband wires. We show that the weight of the Majoran...

Neil Muncy [1] has shown that audio frequency current flowing on the shield of twisted-pair audio wiring will be converted to differential mode voltage by any imbalance in the transfer impedance of the cable. He hypothesized that the effect is magnified by the presence of a drain wire and increases linearly with frequency. Whitlock [2] and others have shown that conversion also occurs with capa...

1 Introduction The secret keys manipulated by cryptographic circuits can be extracted using fault injections associated with differential cryptanalysis techniques [1]. Such faults can be induced by different means such as lasers, voltage glitches, electromagnetic perturbations or clock skews. Several countermeasures have been proposed such as random delay insertions, circuit duplications or err...

We theoretically investigate the effect of intermolecular Coulomb interactions on transport through selfassembled molecular monolayers (or other devices based on a large number of nanoscale conductors connected in parallel). Due to the interactions, the current through different molecules become correlated, resulting in distinct features in the nonlinear current-voltage characteristics, as we s...

The present article investigates effects of the multi-frequency excitation on the output power of a piezomagnetoelastic energy harvester. The piezomagnetoelastic power generator is assumed to operate in the mono-stable mode. A perturbation technique based on the method of multiple scales is employed to develop an analytical solution to nonlinear differential equations governing the system dynam...

In this paper we present ultra low-voltage (ULV) floating-gate (FG) CMOS differential analog inverters. The analog inverters may operate with a supply voltage below 1V with programmable current levels. The current level or rather the effective threshold voltage in FG-circuits can be programmed to appropriate values for different applications. The analog inverters presented in this paper may be ...

Transient response; Power supply rejection. Abstract—To realize DC voltage conversion from 3.3V to 1.8V for SoC application, a fully on-chip Low Drop-Out (LDO) voltage regulator with 150mA driving capability is presented. Implemented in 0.18μm CMOS technology, the proposed LDO voltage regulator utilizes paralleled input differential pairs and current amplifiers to provide fast transient respons...

A multi-output second generation current conveyor (MOCCII), that can be used to realized first, second and third generations current conveyors, is proposed. The MOCCII consists of a CMOS differential stage for the voltage input, push-pull stage and the improved cascode current mirrors for the current output. Feedback techniques are proposed in order to provide a voltage gain of 0.991, a current...