Transient potassium currents in mammalian central neurons influence both the repolarization of single action potentials and the timing of repetitive action potential generation. How these currents are integrated into neuronal function will depend on their specific properties: channel availability at the resting potential, activation threshold, inactivation rate, and current density. We here rep...

Several factors interact to maintain precise control of electrolyte transport in the mammalian cortical collecting duct. We have studied the effects of deoxycorticosterone, arginine vasopressin, and bradykinin on net transepithelial sodium and potassium transport in isolated, perfused rat cortical collecting ducts. Chronic administration of deoxycorticosterone to rats increased both sodium abso...

1 Fisch C. Relation of electrolyte disturbances to cardiac arrhythmias. Circulation 1973; 47:408-19 2 Fisch C, Knoebes SB, Feigenbaum H, Greenspan K. Potassium and the monophasic action potencial, electrocardiogram, conduction and arrhythmias. Prog Cardiovasc Dis 1966; 8:387-418 3 Gettes LS, Surawicz B, Shine JC. Effect of high K, low K, and quinidine on QRS duration and ventricular action pote...

2014 Total cross-sections for the collisional depopulation of the 10 P level of Potassium by Potassium and rare gases have been measured, with the following results : Q (K) = 6 000 ± 3 000 Å2; Q (He) = 18 ± 6 Å2 ; Q (Ar) = 8 ± 3 Å2 ; and Q (Xe) = 40 ± 15 Å2. The importance of the electronic excitation transfer to neighbouring levels is clearly demonstrated as well as the influence of the quasi-...

The outdoor gamma dose rates and the activity concentrations of potassium-40, uranium-238, thorium-232 within study area were carried out using calibrated hand-held detector (RS-125 spectrometer) NaI(Tl) spectroscopy. in-situ measurement results rate indicate that hotspot is at location 4 with a value 100 nGyh-1. from revealed highest to be 288.09, 96.49, 136.12 Bqkg−1 for sediments 257.31, 66....

Some factors controlling the differentiation of sporangia and gemmae in an isolate of Achlya sp. were investigated by replacement culture technique. Factors in the replacement medium which affect differentiation were as follows: A) Calcium is required for the differentiation of both sporangia and gemmae. B) Calcium cannot be replaced by magnesium, potassium or sodium. C) Gemmae are induced when...

This thesis reports the achievement of a two-species apparatus for use in an upcoming experiment with fermionic ultracold atomic gases. First, we describe the construction of a laser system capable of cooling and trapping gaseous lithium-6 atoms in a 3D Magneto-Optical Trap. Second, we discuss the realization of a 2D Magneto-Optical Trap which, in our experiment, acts as a high-flux source of c...

Serum and urinary electrolytes were estimated in 33 patients with hepatitis and 35 with cirrhosis. Forty two percent patients with hepatitis and 46% with cirrhosis bad hyponatraemia while 30% with hepatitis and 37% with cirrhosis had low serum potassium levels. Low urinary sodium was found in 27.3% cases of hepatitis and 40% cirrhotics and low urinary potassium in 21.2% and 45.7% cases of hepat...

For the detection of homocystine in urine specimens, a simple thin-layer chromatographic method was devised. Thirty ƒÊl of urine specimens without any prior treatment were applied onto a silica gel-G plate, and developed by ascending chromatography using a phenol water mixture (3: 1) containing 0.05 0 0 potassium cyanide. After developing and drying the plate, a slightly modified potassium iodo...

This study aimed to investigate the concentrations effect of some Electrolytes (Sodium, Potassium, and Magnesium) Lipids compounds (Cholesterol, Triglycerides, high density lipoprotein, low very lipoprotein), sex hormones (estrogen testosterone) on atherosclerosis disease. The included a comparison between 60 patients from both male female with heart disease, 40 healthy gender. age ranged (30 -...