Occupational studies stretching back decades have found an increased risk of bladder cancer among hairdressers.

Methods: A retrospective analysis of patch-test results since October 2006 was done and yielded 28 patients allergic to PPD who were also tested with a hair dye series. From January 2004 through ...

IN consequence of my measurements of Kerr’s magneto-optical phenomena, the thought occurred to me whether the period of the light emitted by a flame might be altered when the flame was acted ...

Inorganic LEDs are light-emitting diodes (LEDs) made from a crystalline semiconductor. The optical emission wavelength can be selected by varying material composition. Example active regions ...

Are you hesitating between a Californian blonde and an intense brown? Good news, in 2025, we will stop torturing our minds in ...