The rates of spontaneous interbilayer and transbilayer exchange of [3H]dimyristoylphosphatidylcholine ([3H]DMPC) were examined in DMPC and DMPC/dimyristoylphosphatidylethanolamine (DMPE) large unilamellar vesicles in the liquid-crystalline-, gel-, and mixed-phase states. DMPC desorption rates from either gel or liquid-crystalline phases containing DMPE are very similar to the corresponding rate...

The sequential element (flip-flop) is a basic building block to design any clocking system, which consists of the clock distribution tree and flip-flops. A large portion of the on chip power is consumed by the clocking system the total power consumption of the clocking system depends on both clocking distribution tree and also the register elements (flip-flops). The power consumption of registe...

The distribution of terminal-sequence orientations in the viral DNA of bovine parvovirus (BPV), an autonomous parvovirus, was studied by end labeling and restriction enzyme digestion and also by cloning. The left (3') end of the minus strand of BPV was found in two alternative sequence orientations (designated as flip and flop, which are reverse complements of each other), with a 10-fold excess...

All practical digital circuits are usually a mixture of combinational and sequential logic. Flip–flops are essential to sequential logic therefore fuzzy flip–flops are considered to be among the most essential topics of fuzzy digital circuit. The concept of fuzzy digital circuit is among the most interesting applications of fuzzy sets and logic due to the fact that if there has to be an ultimat...

The power consumption is critically important in modern VLSI circuits especially for low-power applications. Optimization of power at the logic level is one of the most important tasks to minimize the power. Among logic components, latches and flip-flops are critical to the performance of digital systems. It is important to reduce the power dissipation in both clock distribution networks (CDN) ...

During apoptosis, phosphatidylserine (PS) is moved from the plasma membrane inner leaflet to the outer leaflet where it triggers recognition and phagocytosis of the apoptotic cell. Although the mechanisms of PS appearance during apoptosis are not well understood, it is thought that declining activity of the aminophospholipid translocase and calcium-mediated, nonspecific flip-flop of phospholipi...