BACKGROUND AND PURPOSE Extracellular concentration of potassium ion ([K+]o) may have a significant influence on the cerebral circulation in health and disease. Mechanisms of [K+]o-induced conducted vasomotor responses in cerebral arterioles, possibly linking microvascular regulation to neuronal activity, have not been examined. METHODS We analyzed vascular responses to small increases of [K+]...

Ion exchange (IEX) resins can remove natural organic matter (NOM) from drinking water sources. However, the IEX system produces a waste brine rich of sodium, chloride, NOM and sulfate. The treatment aims to recover clean solution sodium that be reused regenerate resin. Previous research showed ceramic nanofiltration partially removes brine, but sulfate removal requires additional treatment. Sul...

introduction: in order to study the effects of turpentine oil on the concentration of lipids and lipoproteins of rabbit ( as an animal model for human studies )35 healthy female rabbits were chosen and then randomly allocated into 13 groups. different percents of turpentine oil and other oil compounds like vegetable oil, cholesterol and animal oil were given to each group ( 5 rabbits ) separate...

From e.m.f measurements of cells (C-1) and (C-2) it has been established that modified Davies equation is valid in dioxane-water media at least upto 30% dioxane by weight. E0m values Hg | Hg2Cl2(s), Cl- electrode having 10, 20 weight the corresponding thermodynamic parameters have determined 288.15, 298.15, 308.15 318.15 0K. (Pt),H2 ( l atm ) HCl(m1) x% Dioxane (100-x)% H2O, Hg2Cl2(s) … BaCl2(m...

Contractions of vas deferentia induced by KCI or field stimulation were not different between mature and old rats. The effect of trypsin or BaCl2 but not bradykinin or carbachol on contraction induced by field stimulation was significantly different between mature and old rats. The increase of twitching contractions by trypsin may be due to its effect on presynaptic alpha-adrenoceptors. Trypsin...

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Influence of cyclophosphamide treatment (40. mg/kg, ip on alternate days for 5 times) was assessed on 1 m mol BaCl2-induced in vitro rhythmic contractions in isolated rat vas deferens. The mean frequency (contractions per min) and amplitude (g tension) of rhythmic contractions were significantly decreased in the tissues isolated from cyclophosphamide-treated rats as compared to the control tiss...