The International Journal of Digital Earth is an international peer-reviewed academic journal (SCI-E with a 2016 impact factor 2.292) focusing on the theories, technologies, applications, and societal implications of Digital Earth and those visionary concepts that will enable a modeled virtual world.
Search the Internet with Kids.Net.Au. Definition of sodium. a silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt)
Blood sodium testing is used to detect abnormal concentrations of sodium, termed hyponatremia (low sodium) and hypernatremia (high sodium). A doctor may order this test, along with other electrolytes, to identify an electrolyte imbalance. low level of blood sodium is usually due to loss of too much sodium, too much water intake or retention, or to excess fluid accumulation in the body (edema). If the sodium level falls quickly, the person may feel weak and fatigued; in severe cases, he may experience confusion or even fall into a coma.