78 days ago by admin

We call water “challenging” if it contains a lot of calcium or magnesium dissolved in it. A water softener reduces the dissolved calcium, magnesium, and to some degree manganese and ferrous iron ion concentration in tough water. These “hardness ions” trigger 3 significant kinds of undesired effects. ...

119 days ago by Liposomes

LIPIDAT is a convenient compilation of thermodynamic data and bibliographic information on lipids. Over 11,000 records in 15 information fields are provided. The book presents tabulations of all known mesomorphic and polymorphic phase transition types, temperatures, and enthalpies for synthetic and ...

183 days ago by admin

Tissues of sharks are isotonic to seawater, but their concentrations of sodium ions, potassium ions, and chloride ions in cells and extracellular fluids are similar to those of freshwater fish. How could sharks maintain these ion concentration differences at the levels found in freshwater fish? Twee ...

270 days ago by slinne

Serial dilutions are among the most commonly performed techniques in biology, chemistry, pharmacology, microbiology, and physics laboratories. A serial dilution is essentially a stepwise dilution of a substance in a solution. It is often used to reduce the concentration of microscopic organisms or c ...