The corrosion behavior of both tin-plated carbon steel and aluminum (Al 1100) in NaCl solutions were studied using electrochemical impedance spectroscopy (EIS). The study objectives were to compare their corrosion behavior in concentrated brine solution, establish the equivalent electrical circuit diagrams of their corrosion phenomena, and consequently develop steady-state corrosion models for ...

When cells of a marine pseudomonad washed free of medium components with 0.05 m MgSO(4) were suspended in solutions containing 200-mm concentrations of various salts, there was an immediate increase in optical density (OD), followed by a slow decrease. The decrease following the initial increase, but not the increase itself, could be prevented by omitting K(+) from or by adding metabolic inhibi...

Exponentially growing Chinese hamster V79 cells were exposed to Adriamycin either in phosphate buffered saline (PBS) or fresh growth medium (F-med) supplemented with various amounts of NaCl in the range between 50-1000 mM and survival was measured by the colony forming assay. Compared to the survival obtained after exposure of cells to isotonic (140 mM NaCl) PBS (D0 = 0.16 microgram/ml, Dq = 0....

We describe a new method for separating and measuring urinary N-acetyl-beta-D-glucosaminidase isoenzymes by "high-performance" liquid chromatography. Isoenzymes are eluted from the anion-exchange column with a one-step linear gradient of NaCl solution. For continuous post-column quantification of the activities of these isoenzymes, we use an on-line post-column reactor and 4-methylumbelliferyl-...

Volume, osmolality, and concentrations for Na, Cl, and raffinose have been measured as a function of time in standing droplets within rat intermediate and late proximal tubules. Standing droplet reabsorption proceeds without the development of a measurable osmotic difference across the epithelium. After 140 s of tubular exposure, droplet-to-plasma concentration differences are observed for raff...

The effect of environmental ion concentration on the enzyme activity of astrocytes was investigated in tissue cultures of rat cerebral cortex. It was found that the oxidative enzymatic activity (succinic dehydrogenase, DPN-diaphorase, and several other enzymes) of astrocytes depended on the concentration of NaCl in the environment. This response was not specific for NaCl, but was also elicited ...

In the present study, changes of total phenolic concentration and radical-scavenging activity were evaluated in the shoots of Artemisia aucheri -a medicinal plantthat had been exposed as seeds to magnetic fields (90 or 200 mT for 5 and 20 min) and that were irrigated for one month with NaCl (150 mM) under glasshouse conditions. Total phenolic content and radical-scavenging activity decreased in...

Although damage to gustatory cortex (GC) in the rat has been reported to severely impair, if not eliminate, retention of a presurgically conditioned taste aversion (CTA), it has equivocal effects on taste preference as measured by intake tests. Because intake tests can be influenced by nongustatory (e.g., postingestive) factors, we employed the brief-access taste test to assess the effects of i...

A considerable proportion of the arable land cropped with pearl millet in northern Nigeria is affected by salt concentration. Pot experiments were conducted at Maiduguri in Sudan savanna to determine the influence of NaCl concentration on growth and nutrient content of pearl millet. The treatments comprised of three NaCl concentrations: 0.0, 1.4336 and 2.1504g/kg of soil and five pearl millet v...

The robust physiology of Enterococcus faecalis facilitates tolerance to various stresses. We here report the transcriptional response of E. faecalis V583 to growth in the presence of 6.5% NaCl. Among the early responses observed was an immediate down-regulation of mscL, accompanied by an up-regulation of genes predicted to be involved in uptake of extracellular potassium and glycine betaine. Th...