Explaining the variable oxidation states in the transition metals. We'll look at the formation of simple ions like Fe 2+ and Fe 3+ . When a metal forms an ionic compound, the formula of the compound produced depends on the energetics of the process.
Woman can accurately detect Parkinsonâs Disease through smell: report. This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. A woman whose husband died of Parkinsonâs Disease may revolutionize the way the neurological disorder is diagnosed. Joy Milne was tested by researchers after she claimed she could detect people suffering from Parkinsonâs through a tell-tale odor. âI recognized a change in his smell,â Milne told BBC, describing the new scent as âmusky.â But, she chalked the new smell up to the long hours he was working.
Linking Sense of Smell to Alzheimerâs. Researchers at The University of Florida asked over 90 participants to smell a spoonful of peanut butter at a short distance from their nose. Some participants had a confirmed early stage Alzheimerâs diagnosis, some had other forms of dementia, while others had no cognitive or neurological problems.