Psychology & Psychiatry

Our brains process irony in emojis, words in the same way

That winky-face emoji that you use at the end of a text isn't just a fun picture added to your sentence. It can convey linguistic meaning that changes the interpretation of the sentence, a new study finds.

Alzheimer's disease & dementia

Iron may be a factor in dementia

Alzheimer's disease is no respecter of fame or fortune. Former US president Ronald Reagan had it. Legendary AC/DC guitarist Malcolm Young has been diagnosed. Hazel Hawke suffered until her death in 2013. And author and broadcaster ...

Diseases, Conditions, Syndromes

Discovery may help patients beat deadly pneumonia

Researchers have found that a hormone responsible for controlling iron metabolism helps fight off a severe form of bacterial pneumonia, and that discovery may offer a simple way to help vulnerable patients.

Attention deficit disorders

Healthy eating may help ADHD kids: US study

Simply eating healthier may improve the behavior of children with attention deficit hyperactivity disorder if therapy and medication fail, said a study published Monday in the journal Pediatrics.

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Iron

Iron (pronounced /ˈаɪ.ərn/) is a chemical element with the symbol Fe (Latin: ferrum) and atomic number 26. Iron is a group 8 and period 4 element. Iron and iron alloys (steels) are by far the most common metals and the most common ferromagnetic materials in everyday use. Fresh iron surfaces are lustrous and silvery-grey in colour, but oxidise in air to form a red or brown coating of ferrous oxide or rust. Pure single crystals of iron are soft (softer than aluminium), and the addition of minute amounts of impurities, such as carbon, significantly strengthens them. Alloying iron with appropriate small amounts (up to a few per cent) of other metals and carbon produces steel, which can be 1,000 times harder than pure iron.

Iron-56 is the heaviest stable isotope produced by the alpha process in stellar nucleosynthesis; heavier elements than iron and nickel require a supernova for their formation. Iron is the most abundant element in the core of red giants, and is the most abundant metal in iron meteorites and in the dense metal cores of planets such as Earth.

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