introduction: sonophoresis has been assessed as a novel approach to create skin permeability and drug delivery using low frequencies of ultrasound waves in the range of 20 khz to 3 mhz. in this study, a system including seven 40 khz piezoelectric transducers and an insulin chamber designed by the medical physics research center has been evaluated on hyperglycemic rabbits. materials and methods:...

Although sensors used in the majority of high-performance seismometers are capacitive, the performance of present commercial instruments is less than what it could be--due to the choice of less-than-optimal electrode configurations. The detector in commercial instruments has only one-half the symmetry of the patented symmetric differential capacitive (SDC) transducer, also known as 'fully diffe...

______________________________________________________________________________ In this paper the conductometric titration of propranolol hydrochloride in pharmaceutical formulations using silver nitrate as titrant is proposed. The method was based on the formation of an insoluble salt (AgCl(s)) between the chloride of propranolol hydrochloride molecule and Ag(I) ions of the titrant AgNO3. The e...

For detection of cardiac ischemia based on regional pCO2 measurement, sensor drift becomes a problem when monitoring over several hours. A real-time drift correction algorithm was developed based on utilization of the time-derivative to distinguish between physiological responses and the drift, customized by measurements from a myocardial infarction porcine model (6 pigs, 23 sensors). IscAlertT...

Two simple, rapid and accurate conductometric methods were developed for determination of losartan potassium, pantoprazole sodium, sumatriptan succinate, rabeprazole sodium and lomefloxacine HCl in pure form as well as in their pharmaceutical formulations. The proposed methods based on using two different precipitating agents for conductometric determination of the cited drugs. Method (A) based...

The hybrid of Differential Evolution algorithm with Kalman Filtering and Bacterial Foraging algorithm is a novel global optimization method that is implemented in this research to obtain the best kinetic parameter value. The proposed algorithm is then used to model tyrosine production in mus musculus (mouse) by using a dataset, JAK/STAT (Janus Kinase Signal Transducer and Activator of Transcrip...