Haloarchaeal strains require high concentrations of NaCl for their growth, with optimum concentrations of 10-30%. They display a wide variety of morphology and physiology including pH range for growth. Many strains grow at neutral to slightly alkaline pH, and some only at alkaline pH. However, no strain has been reported to grow only in acidic pH conditions within the family Halobacteriaceae.In...

The viability of starved or dying Saccharomyces cerevisiae Y5 cells was extended for up to 1,500 h by adding osmotic supports (0.6 M sorbitol or mannitol) to the starvation media. Replacement of these polyols with 0.3 M KCl, 0.5 M MgSO4, or 0.2 M MgCl2 postponed the death of cells incubated in N-free medium, but accelerated it in distilled water.

Urine is an excellent fuel for electricity generation in Microbial Fuel Cells (MFCs), especially with practical implementations in mind. Moreover, urine has a high content in nutrients which can be easily recovered. Struvite (MgNH4PO4·6H2O) crystals naturally precipitate in urine, but this reaction can be enhanced by the introduction of additional magnesium. In this work, the effect of magnesiu...

Although the distribution of sodium, potassium, and chloride in mammalian tissue is now well established, this cannot be said for calcium and magnesium. From analyses of whole tissues for these elements it may be inferred that the magnesium content of the cells, like that of potassium, is relatively high, while calcium must be present in cells in considerably lower concentration than is magnesi...

The conversion of saltwater and brackish water into fresh through desalination has gained significant importance as a solution to the worldwide scarcity resources. Reverse Osmosis (RO) method been effectively utilized generate from sources water. This research aims examine variables that affect performance reverse osmosis process. effectiveness membrane was assessed experiments explored impact ...

We determined the free energy of DNA supercoiling as a function of the concentration of magnesium and sodium chloride in solution by measuring the variance of the equilibrium distribution of DNA linking number,<(DeltaLk)2>. We found that the free energy of supercoiling changed >1.5-fold over the range of ionic conditions studied. Comparison of the experimental results with those of computer sim...