The difference is that electrons in the upper bound of the valence band have opposite group velocity and wave vector direction when moving, which can be effectively treated as if positively charged particles ( holes ) moved in the opposite direction to that of the electrons.

Particularly prominent products of the scene were The Grateful Dead ( who had effectively become the house band of the Acid Tests ), Country Joe and the Fish, The Great Society, Big Brother and the Holding Company, The Charlatans, Moby Grape, Quicksilver Messenger Service and Jefferson Airplane.

Since the Heisenberg principle limits the precision of any measurement of the combination of an electron's momentum ( related to energy ) and its position, in a crystal effectively the available energy levels form a continuous band of allowed energy levels.

Pearl Jam then began a boycott of the company ; however, Pearl Jam's initiative to play only at non-Ticketmaster venues effectively, with a few exceptions, prevented the band from playing shows in the United States for the next three years.

This aborted any opportunity of breakthrough success at Monterey, as Cooder immediately decided he could no longer work with Van Vliet, effectively quitting both the event and the band on the spot.

Given that Krasnow had effectively poached the band from Buddah there were limitations on what material could be released.

Even though Falkenbach was formed as early as 1989, the band didn't get much attention until the debut, that includes epic music that is " rife with keyboards, Viking themes, and folk music tendencies ," Falkenbach was effectively a merge of Viking metal with folk metal.

This led to him leaving for London to study film at Central Saint Martins College of Art and Design, effectively folding the band.

The Five Spot residency ended Christmas 1957, Coltrane left to rejoin Miles Davis's seminal sextet, and the band was effectively disbanded.

* The post-hardcore band Thrice effectively re-tells the story in the song " The Red Death ", on their album The Illusion of Safety.

These changes have effectively eliminated bugles from the activity, since the current three-valve, four for the contrabass, instruments are more akin to band instruments than true bugles.

Prior to its release, band members promised a much darker and heavier album than Slipknot, and many sources praised the band for achieving this – effectively fulfilling their promises.

This was an uncertain time for the future of the band, and when Harries announced he was not keen to continue his role, even the willingness of Kemp to return to the line-up full-time was not enough to prevent what was effectively a breakup.

John Pickles ( father of Andy ) was strictly speaking never in the band, but the owner of the label and effectively the manager.

It was eventually released by Lost Highway in 2001, by which time the band was effectively done.

On 5 November the band announced there would be no more projects under the Suede name for the foreseeable future – effectively announcing the end of the band, as they stated on their website: " There will not be a new studio album until the band feel that the moment is artistically right to make one.

The band effectively disbanded a few months later with Blackie Lawless embarking on a short lived solo career.

In January 1980 The Return of the Durutti Column was released, the first in a long series of releases by the " band " ( now effectively a solo project for guitarist Vini Reilly ).

This results in an absorption line, since the narrow frequency band of light initially traveling toward the detector, has been effectively scattered in other directions.

Slade were suggested but Hill, still demoralised, had effectively left the band and initially refused when asked by the other band members.

The DNA band can also be cut out of the gel, and can then be dissolved to retrieve the purified DNA.

Meanwhile, Cahit Berkay dissolved the band and left for France to meet with Engin Yörükoğlu.

The band completely dissolved in 1976.

This band was dissolved in 1976 and 3 45 rpms.

" The band however dissolved and Sumner revealed in 2009 that he no longer wished to make music as New Order.

The project's third album Twisted Tenderness was released in 1999 after which the band dissolved.

In early 2005, 30 Odd Foot Of Grunts as a group has " dissolved / evolved " with Crowe feeling his future music would take a new direction and he began a collaboration with Alan Doyle of the Canadian band Great Big Sea, and with it a new band: The Ordinary Fear of God which also involved some members of the previous TOFOG line-up.

At that point, the original band dissolved.

Although Inside also released a second album " Beware ", the band dissolved after touring in early 1999.

In early 2006, the partnership between Downes and Payne was dissolved when Downes left for a reunion of the original band line-up under the Asia name, a breakup that Payne described as " painful ".

Following disagreements in March 1978 over the direction the band should take, the contract with Hansa was dissolved.

Despite reports that the band began work on a sixth studio album in 2002 that reportedly would go back to their Core-era sound and planned on releasing it in 2003, the band had dissolved by the end of 2002, after reports of an altercation between Dean DeLeo and Weiland after the last show of Stone Temple Pilots ' fall 2002 tour.

The band dissolved within a year, and the two moved to New York together with Frantz's girlfriend Tina Weymouth.

However, this version did not had the acceptance of the public, and finally the band was dissolved.

The band dissolved in Autumn 1997 after the PLAG-Tour.

Zaentz and his associates withdrew their assets before the bank eventually dissolved — along with the savings of the four Creedence Clearwater Revival band members.

The band dissolved not long after the event.

However, in 1982 a ' Return of the Bluesbreakers ' was announced and the name was in use until the band again dissolved in 2008.

The band has since dissolved.

Internal turmoil overtook the band soon after ; the group dissolved in 1976, reformed briefly at the end of the decade with additional personnel changes, and dissolved again in 1982.

The band was later renamed Edwin Bear and later Arms and Legs, but dissolved in 1976 after two unsuccessful singles.

In a short time, however, the band faded into obscurity and dissolved, leaving father and son relatively short of funds again.