Ozzy Osbourne

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John Michael "Ozzy" Osbourne (born 3 December 1948) is an English singer, songwriter and television personality. He rose to prominence in the early 1970s as the lead vocalist of the band Black Sabbath, widely considered to be the first heavy metal band. Osbourne was fired from Black Sabbath in 1979 and has since had a successful solo career, releasing 11 studio albums, the first seven of which were all awarded multi-platinum certifications in the U.S. He has reunited with Black Sabbath on several occasions, recording the album 13 in 2013. Osbourne's longevity and success have earned him the informal title of "Godfather of Heavy Metal".

Osbourne's total album sales from his years in Black Sabbath, combined with his solo work, is over 100 million. As a member of Black Sabbath, he was inducted into the U.S. Rock and Roll Hall of Fame, and he was inducted into the UK Music Hall of Fame as a solo artist and as a member of the band. Osbourne has a star on the Birmingham Walk of Stars in his hometown as well as the Hollywood Walk of Fame. At the 2014 MTV Europe Music Awards he received the Global Icon Award. In the early 2000s, he became a TV star, appearing as himself in the MTV reality program The Osbournes, alongside wife/manager Sharon and two of their three children, Kelly and Jack.

List of Bo' Selecta! characters

This is a list of fictional characters from the television series Bo' Selecta!

Main characters

Craig David

Craig David is one of the main Bo' Selecta characters. His catchphrases are "Proper Reet Bo" and "Proper Bo, I tell thee!". He is portrayed as having a very large chin, with a beard made with a pen. Craig has a very strong Yorkshire accent. He carries around a plastic Peregrine Falcon on his wrist named "Kes", as a reference to the film, Kes. Kes was apparently bought off a man in Huddersfield who had a dog with one leg. He calls Kes a bastard, often when calling her to return. Craig also wears a beanie hat, and his iconic headphones from his "Born to Do It" album cover. In the first series, a segment entitled "Craig David's Life Story" is featured, showing events such as David visiting the doctor to be fitted with a Urostomy bag (which he often fails to wear at night and wets the bed), and attempting to break the American market but catches a flight to Majorca by accident. For the second series, each episode segment follows him on his nationwide UK tour, in which he meets Michael Jackson, goes dating, goes for a walk, meets the real Craig David, and performs in front of a live audience. In the third series, he attempts to break America again, unsuccessfully. Along the way, he makes a music video for his song "Soda Pop", and gets himself a makeover from Mel B. He appeared in Bo! in the USA, in a weekly segment in which he tries to seduce Holly Valance and earn himself a bronze swimming award. Leigh Francis stated in an interview with Metro that the character was based on Billy Casper from the film Kes, rather than the singer Craig David.

Ozzy (album)

Ozzy is the third album by Canadian alternative/indie rock band hHead, released in 1996. It was recorded and released on Handsome Boy Records, after IRS Records closed down.

Track listing

Activator

Activator may refer to:

Enzyme activator

Enzyme activators are molecules that bind to enzymes and increase their activity. They are the opposite of enzyme inhibitors. These molecules are often involved in the allosteric regulation of enzymes in the control of metabolism. An example of an enzyme activator working in this way is fructose 2,6-bisphosphate, which activates phosphofructokinase 1 and increases the rate of glycolysis in response to the hormone insulin.

See also

References

Activator (phosphor)

In phosphors and scintillators, the activator is the element added as dopant to the crystal of the material to create desired type of nonhomogeneities.

In luminescence, only a small fraction of atoms, called emission centers or luminescence centers, emit light. In inorganic phosphors, these inhomogeneities in the crystal structure are created usually by addition of a trace amount of dopants, impurities called activators. (In rare cases dislocations or other crystal defects can play the role of the impurity.) The wavelength emitted by the emission center is dependent on the atom itself, its electronic configuration, and on the surrounding crystal structure.

The activators prolong the emission time (afterglow). In turn, other materials (such as nickel) can be used to quench the afterglow and shorten the decay part of the phosphor emission characteristics.

The electronic configuration of the activator depends on its oxidation state and is crucial for the light emission. Oxidation of the activator is one of the common mechanisms of phosphor degradation. The distribution of the activator in the crystal is also of high importance. Diffusion of the ions can cause depletion of the crystal from the activators with resulting loss of efficiency. This is another mechanism of phosphor degradation.