23 February 2012   29. Rabi-ul-Awwal 1433

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Strange Science

  • Birds sing louder amidst the noise and structures of the urban jungle
    Sparrows, blackbirds and the great tit are all birds known to sing at a higher pitch in urban environments. It was previously believed that these birds sang at higher frequencies in order to escape the lower frequencies noises of the urban environment. Now, researchers have discovered that besides noise, the physical structure of cities also plays a role in altering the birds' songs.
  • World of Warcraft boosts cognitive functioning in older adults
    For some older adults, the online video game World of Warcraft (WoW) may provide more than an opportunity for escapist adventure. Researchers have found that playing WoW boosted cognitive functioning for older adults – particularly those who had scored poorly on cognitive ability tests before playing the game.
  • Off switch for pain? Chemists build light-controlled neural inhibitor
    Pain? Just turn it off! It may sound like science fiction, but researchers have now succeeded in inhibiting pain-sensitive neurons on demand, in the laboratory. The crucial element in their strategy is a chemical sensor that acts as a light-sensitive switch.

Doctor's Knowledge for You

  • Emergency contraception

    Emergency contraception: The prevention of pregnancy after unprotected vaginal intercourse. Emergency contraception may use drugs related to the female hormones estrogen and progesterone. These "morning-after pill" are similar to birth control pills but generally contain higher hormone doses. Another form of emergency contraception uses an intrauterine device (IUD) inserted by a physician within 5 days after intercourse.

    Emergency contraception is also known as emergency birth control; emergency postcoital contraception; and postcoital contraception.



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