The fundamental role of the assumption of plane wave ultrasonic propagation in attenuation and scattering measurements on soft tissues is discussed. The evidence for and against the validity of the assumption is shown to be inconclusive. An experimental procedure for direct assessment, by measuremen …

An experiment in education for medical and English Honours students was conducted during the 1983 academic year. Eight evening seminars were held, at which literary pieces were presented and discussed. All had relevance to medicine. No quantitative results could be deduced, but the voluntary attenda …

Using self-report measures of lateness and absence on pilot and main study samples, this study applied Dalton and Mesch's (1991) measurement approach to successfully "dissect" avoidable absence and avoidable lateness behaviors. Avoidable absence behavior was calculated by subtracting unavoidable abs …

The physical and biochemical properties of activated sludge mixed liquor, including floc size distribution, zeta potential, relative hydrophobicity, and bound and unbound (soluble) extracellular polymeric substances (EPS), were examined in this study to evaluate their relationship to membrane foulin …

A membrane-assisted and a conventional activated sludge system, both operated in an enhanced biological phosphorus removal (EBPR) mode and under identical operating conditions, were studied to investigate the effect of the membrane solids-liquid separation on nitrification activity. Both the membran …

The implementation of reverse osmosis (RO) process is a solution for increasing water demand. In this work the treatment feasibility of effluent wastewater in Tabriz Petrochemical Complex was evaluated using RO pilot plant. After a pretreatment with cartridge filters, wastewater was introduced to RO …

In response to the increasing social diversity of health-care recipients, nurse scholars have turned their attention to developing theoretical foundations for culturally responsive and spiritually sensitive nursing practice. However, despite the potential overlap between these 2 areas, there has bee …

The influences of mixed liquor properties on critical flux were investigated in the membrane for simultaneous thickening and digestion of activated sludge (MSTD) process, and the sustainable operation of the MSTD process was examined by employing sub-critical operation. The critical flux significant …

Tracer studies have been widely applied to characterize the flow behavior in activated sludge reactors. The channel reactor with bottom aerators is one of the widespread designs in large wastewater treatment plants. Its flow behavior is well modeled either as a plug flow reactor with axial dispersio …