The participants' best-corrected distance acuity was measured using a rear-illuminated Snellen chart at 6 meters (about 20 feet, or closer if the participant was not able to read the 6/60 optotype) and converted to LogMAR notation for the purposes of analysis.
Overview. Vanadium is a trace mineral found in many foods. Scientists think your body may need vanadium in very small amounts for normal bone growth. Scientists aren't sure exactly what effects vanadium may have, or what amount might be helpful, however, they know high doses of vanadium are likely to be unsafe.
Vanadium was rediscovered in 1830 by Nils Gabriel Sefstrom. He named it in honor of the Scandinavian goddess Vanadis because of the elementâs beautifully multicolored compounds. Properties of vanadium. Vanadium is a transition metal in Group 5 on the periodic table of the elements.In its pure form, vanadium is a bright white metal. It is soft, ductile and structurally strong.t is an important carbide stabilizer. About 80 percent of the vanadium now produced is used as ferrovanadium or as a steel additive. Vanadium foil is used as a bonding agent when cladding titanium to steel. Vanadium pentoxide is used in ceramics and as a catalyst.