THIS WORK DEALS WITH SEVERAL DIRECT AND INDIRECT SPECTROPHOTOMETRIC, SPECTROFLUORIMETRIC AND VOLTAMMETRIC ANALYSES OF THE VASODILATOR DRUG: naftidrofuryl oxalate (NF). For the derivative spectrophotometric measurement, NF was determined by measuring the peak to peak amplitude of (1)D263-299 and (2)D282-311 or the absolute peak height of (1)D237 and (2)D241, while its reaction product with conce...

The feasibility of using the chromogenic dye Thorin to spectrophotometrically measure lithium concentration in human saliva was explored. Absorbance wavelength maximum Li-Thorin complex found be 480 nm. at nm obtained for calibration standards containing 0.00–5.29 mEq/L lithium. A least-squares fit produced a regression equation y = 0.128x + 1.449, R 0.997. This used predict concentrations both...

This study examined the role of self-monitoring support for writing skill improvement in a reciprocal peer review of writing system called SWoRD (Cho & Schunn, 2007). Because self-monitoring has been identified as a critical component in self-regulated learning (Butler & Winne, 1995; Cresswell, 2000; Zimmerman & Risemberg, 1997), students were provided with opportunities to self-monitor their w...