In dogs under pentobarbital anesthesia, the administration of KCI in single intra-atrial doses of 1 mg/kg produced varying effects on intraventricular conduction depending upon the initial potassium concentration of systemic blood. At normal and moderately increased systemic K concentrations, single injections of KCI improved intraventricular conduction, but at higher systemic K concentrations ...

Synaptic currents were recorded in HL-3 saline from muscle 6 in segment A2 using a twoelectrode voltage clamp. For EJC recordings, stimuli consisted of 0.2 ms pulses delivered at 1 Hz from an isolated pulse stimulator (AM systems 2100), gated by pClamp software (Axon Instruments). Intracellular glass microelectrodes were filled with 3 M KCl (voltage monitor electrode, resistance 7–10 MQ) or sat...

PURPOSE The aim of this study was to assess the pharmacophysiological significance of the enteric nervous system for the mechanical responses of lower esophageal sphincter (LES) in infantile rats with kaolin-induced hydrocephalus. MATERIAL AND METHODS Hydrocephalus was created in 7-day-old rats by injection of kaolin into the cisterna magna. After 10 days, rats were decapitated. Contractile (...

zataria multiflora boiss. is used in iranian traditional medicine to treat gastrointestinal disorders and menrrhalgia. the inhibitory effect of this herb on rat ileum contractions is also reported. the aim of this study was to investigate the effect of zataria multiflora boiss. hydroalcoholic leaf extract (zhle) on isolated rat uterus in presence of some known uterus stimulants. pieces of virgi...

In the present work, release of tracer location on global mixing time in an agitated ladle furnace by gas bottom injection was analyzed. Then, a numerical multiphasic steel-slag-argon-air system prototype with capacity 150 tons carried out. The simulation validated using physical model 1/6 geometric scale colorant, KCl dispersion measurements techniques and open slag eye opening. Four different...

the chromosomal spread and karyotype of bleak (alburnus alburnus) from anzali lagoon were identified using tissue squashing techniques with injection of 0.5ml/100g body weight of 0.01% colchicines solution in fish fingerlings. kidney and gill tissues were then extracted and chopped in kcl 0.045m for 20 min and fixed in carnoy solution in 3 stages. the chromosomal spreads were stained in 20% gim...

in this study, the effects of various concentrations of nacl and kcl and partial replacement of nacl withkcl on the growth characteristics of l. monocytogenes were evaluated. it was found that l. monocytogenescan grow in the presence of 1-9% nacl and 1-11% kcl. the higher the concentration of salt used, the longerthe lag phase induced. in addition, it was observed that l. monocytogenes tolerate...

I N A previous study (I) it was found that the response of rat muscle to single stimuli showed a greater developed tension and a longer contraction time in adrenalectomized animals than in normal controls. The increased contraction time and the prolonged action potentials observed after adrenalectomy led to the suggestion that repetition might account for a part of the increased tension. In the...