Passage success of sea lampreys Petromyzon marinus and behaviour in the vicinity man-made structures such as marine–freshwater barriers are poorly understood. To mitigate these migratory problems, a better understanding passage is needed. investigate this, 25 were tagged with V7 VEMCO acoustic transmitters at large marine-freshwater barrier, consisting ten sluice gates ship lock complex Netherl...

INTRODUCTION The aim of this study was to compare the effect of post space preparation with Gates Glidden drills or hand files on the sealing ability of gutta-percha or Resilon obturation materials. MATERIALS AND METHODS One-hundred and four single-rooted human teeth were instrumented and divided into four experimental groups (n=21 each) and two groups of positive and negative control (n=10)....

The four arginine-rich S4 helices of a voltage-gated channel move outward through the membrane in response to depolarization, opening and closing gates to generate a transient ionic current. Coupling of voltage sensing to gating was originally thought to operate with the S4s moving independently from an inward/resting to an outward/activated conformation, so that when all four S4s are activated...

Ion channels, like most other proteins, are designed to move. To preserve ionic gradients across cell membranes , they are usually closed and open their gates only when called upon to do electric work. Ionic fluxes through open channels are exploited by cells for a variety of tasks, including the generation of explosive action potentials in excitable cells. A singular feature of the ion channel...

in this paper a novel all-optical logic nand, nor and xor gate based on nonlinear directional coupler theory is demonstrated. we use the identical structure which contains three waveguides, for designing these gates; the only difference however, is the power of inputs light beam. in other words, while a beam with 4 w/μm in power considered as logical one, the output is nand gate and if a beam w...

In this paper, we have proposed a new design technique of BCD Adder using newly constructed reversible gates are based on NMOS with pass transistor gates, where the conventional reversible gates are based on CMOS with transmission gates. We also compare the proposed reversible gates with the conventional CMOS reversible gates which show that the required number of Transistors is significantly r...