Performance

A performance, in the performing arts, generally comprises an event in which a performer or group of performers present one or more works of art to an audience. Usually the performers participate in rehearsals beforehand. Afterwards audience members often applaud. After a performance, performance measurement sometimes occurs. Performance measurement is the process of collecting, analyzing and reporting information regarding the performance of an individual, group, organization, system or component.

The means of expressing appreciation can vary by culture. Chinese performers will clap with the audience at the end of a performance; the return applause signals "thank you" to the audience. In Japan, folk performing-arts performances commonly attract individuals who take photographs, sometimes getting up to the stage and within inches of performer's faces.

Sometimes the dividing line between performer and the audience may become blurred, as in the example of "participatory theatre" where audience members get involved in the production.

Computer performance

Computer performance is characterized by the amount of useful work accomplished by a computer system or computer network compared to the time and resources used. Depending on the context, high computer performance may involve one or more of the following:

Technical and non-technical definitions

The performance of any computer system can be evaluated in measurable, technical terms, using one or more of the metrics listed above. This way the performance can be

Whilst the above definition relates to a scientific, technical approach, the following definition given by Arnold Allen would be useful for a non-technical audience:

Performance (Eloy album)

Performance is the twelfth album by German progressive rock band Eloy, which was released in 1983.

Track listing

All songs composed and arranged by Eloy. Lyrics by Sigi Hausen.

Tracks 8, 9 and 10 are bonus tracks from the 2005 remastered edition.

Personnel

References

External links

Vertigo

Vertigo is when a person feels as if they or the objects around them are moving when they are not. Often it feels like a spinning or swaying movement. This may be associated with nausea, vomiting, sweating, or difficulties walking. It is typically worsened when the head is moved. Vertigo is the most common type of dizziness.

The most common diseases that result in vertigo are benign paroxysmal positional vertigo, Ménière's disease, and labyrinthitis. Less common causes include stroke, brain tumors, brain injury, multiple sclerosis, and migraines. Physiologic vertigo may occur following being exposed to motion for a prolonged period such as when on a ship or simply following spinning with the eyes closed. Other causes may include toxin exposures such as to carbon monoxide, alcohol, or aspirin. Vertigo is a problem in a part of the vestibular system. Other causes of dizziness include presyncope, disequilibrium, and non-specific dizziness.

Benign paroxysmal positional vertigo is more likely in someone who gets repeated episodes of vertigo with movement and are otherwise normal between these episodes. The episodes of vertigo should last less than one minute. The Dix-Hallpike test typically produces a period of rapid eye movements known as nystagmus in this condition. In Ménière's disease there is often ringing in the ears, hearing loss, and the attacks of vertigo last more than twenty minutes. In labyrinthitis the onset of vertigo is sudden and the nystagmus occurs without movement. In this condition vertigo can last for days. More severe causes should also be considered. This is especially true if other problems such as weakness, headache, double vision, or numbness occur.

Vertigo (Olivia Lewis song)

"Vertigo" was the Maltese entry in the Eurovision Song Contest 2007, performed in English by Olivia Lewis.

The song is a moderately up-tempo number. Lewis describes the difficulties she faces in her relationship, as her lover apparently spends much of his time doing exactly the opposite of what she expects him to. She likens this feeling to vertigo, and wonders if perhaps "solo is the way to go", suggesting that she may choose to end the relationship rather than deal with the problems.

Musically, the song features a tune described as "oriental" and containing elements both of Middle Eastern and Far Eastern music (most notably a gong, struck at various points during the song). Lewis herself performed in a costume made of silk and giving the appearance of being from China.

As Malta had not finished the previous Contest in the top ten, the song was performed in the semi-final. Here, it was performed twentieth (following Norway's Guri Schanke with "Ven a bailar conmigo" and preceding Andorra's Anonymous with "Salvem el món"). At the close of voting, it had received 15 points, placing 25th in a field of 28 and thus preventing Malta from qualifying for the final. The result represents Malta's first failure to appear in the final since the country relaunched itself at the Eurovision Song Contest in 1991.

Vertigo (UTS)

Vertigo is the student publication of the University of Technology, Sydney. Its name derives from the university's main building, which is a 28-storey brutal modernist tower block and how the Vertigo Offices were originally at its summit (they have since been moved to Level 3). Vertigo is published by the UTS Students' Association.

The name Vertigo was adopted in 1991. Previously the student newspaper had been called Newswit, a leftover from when UTS was the NSW Institute of Technology.

Content

Each edition contains an editorial, satire, serious feature articles, music and movie reviews and profiles on popular artists. Comics and other artworks often are printed by the magazine, but may not be in every issue.

Office Bearer Reports

Vertigo is constitutionally required to print Office Bearer Reports for the UTS Students' Association Office Bearers if they would like to inform the student population about their role and activities. This has often led to controversies as the editorial direction often attracts a readership which may be at political odds with some Office Bearers' beliefs.