SYSTEMATIC INVESTIGATION of low and erratic results obtained in one laboratory on standard solutions of uric acid revealed the presence of considerable free residual chlorine in the supply of distilled water. A further study was made of the effect of free chlorine on the determination of uric acid and other substances susceptible to oxidation-reduction reactions. Collier and Stuart (1) previous...

BACKGROUND Inhibitors of angiotensin converting enzyme (ACE) cause a non-productive cough. The insertion/deletion polymorphism of ACE was used as a genetic marker to investigate the relationship between ACE genotype and cough sensitivity. METHODS A double blind cough challenge was performed in 66 normotensive subjects (34 men) of mean age 34.8 years (range 18-80) using aerosols of distilled w...

this study carried out based on a randomized completely design with 10 treatments geranium, eucalyptus and myrtus extraction, in 3 levels (2, 6 and 10 ml in 600 ml of distilled water) and control (distilled water) with 3 replications in 30 plots and each plot with 4 cut flowers. in this experiment traits such as vase life, water absorbtion, fresh weight, dry matter percent, petal protein conten...

OBJECTIVE Chronic ethanol consumption is a major public health problem throughout the world. We investigated the anxiolytic-like effects and the possible ever injury induced by the chronic consumption of ethanol or sugarcane spirit in mice. METHOD Adult mice were exposed to a two-bottle free-choice paradigm for 6 weeks. The mice in Group A (n = 16) had access to sugarcane spirit + distilled w...

Surface EMG activities in the masseter muscle were recorded from 8 healthy men with normal permanent dentition during habitual chewing of a small cube of synthetic cellulose sponge which had absorbed distilled water. Three parameters of chewing rhythm, viz., cycle time, duration, and interval, were shown as the respective averages of 40 measurements of the EMG traces of a masticatory series of ...