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.

Vértigo (La Ley album)

Vértigo is La Ley's fifth album. The album is separated from the band's other albums because of its electronic sound, machined-style rhythm, and particular cover. The album was completed with the same people as in Invisible, but just before the release, Rodrigo Aboitiz left the band due to a drug problem. The quartet then split with Luciano Rojas for good when he left in the middle of the tour.

Background and reception

Due to the success of Invisible, the band hardly found time to record what would be their next album. However, in 1997 they began recording and announced the album's release date for the middle of that summer, but it was later delayed until 1998. During this time, Rodrigo Aboitiz (the band's keyboardist) caused a series of troubles, missing the first weeks of recording. After the album was finished, he left the band.

One month before the release of the album, the first single, "Fotofobia", was released and slashed by critics. After that, the album "Vértigo" was released and brought the least success of all the band's albums. According to the band members, they had high expectations about it, but it was proven to be a failure in comparison to Invisible. The album was notorious for its electric and machine-style sounds that surprised and outraged most of the fans. Still, the album sold fairly well, as it sold 100,000 copies in Mexico.

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.

Environment variable

Environment variables are a set of dynamic named values that can affect the way running processes will behave on a computer.

They are part of the environment in which a process runs. For example, a running process can query the value of the TEMP environment variable to discover a suitable location to store temporary files, or the HOME or USERPROFILE variable to find the directory structure owned by the user running the process.

They were introduced in their modern form in 1979 with Version 7 Unix, so are included in all Unix operating system flavors and variants from that point onward including Linux and OS X. From PC DOS 2.0 in 1982, all succeeding Microsoft operating systems including Microsoft Windows, and OS/2 also have included them as a feature, although with somewhat different syntax, usage and standard variable names.

Details

In all Unix and Unix-like systems, each process has its own separate set of environment variables. By default, when a process is created, it inherits a duplicate environment of its parent process, except for explicit changes made by the parent when it creates the child. At the API level, these changes must be done between running fork and exec. Alternatively, from command shells such as bash, a user can change environment variables for a particular command invocation by indirectly invoking it via env or using the ENVIRONMENT_VARIABLE=VALUE <command> notation. All Unix operating system flavors, DOS, and Windows have environment variables; however, they do not all use the same variable names. A running program can access the values of environment variables for configuration purposes.

CLS (DOS)

CLS (DOS) may refer to:

See also

Mercedes-Benz CLS-Class

The Mercedes-Benz CLS is a four-door mid-size luxury coupe originally launched in 2004 and based on the W211 E-Class and was internally designated as the W219. The second generation CLS-Class was introduced in September 2010 and production started in the beginning of 2011.

The CLS slots above the E-Class and below the S-Class.

Background

The CLS marked Mercedes-Benz's return to the executive-size coupe market since the (W124) E-Class Coupe (a two-door sedan) went out of production in 1995. The (W210) E-Class did not spawn a coupe variant, as Mercedes-Benz chose instead to introduce a smaller coupe based on the compact C-Class, the CLK-Class. However, the CLK-Class was built with a lengthened C-Class wheelbase so it could be slotted as a mid-sized vehicle, and it also featured styling cues, engines, and similar pricing to the (W210) E-Class to give the impression that the (W124) E-Class Coupe had been directly replaced.

Marketed as a four-door coupe, the CLS was designed by the American automotive designer, Michael Fink in 2001 (born 1967), who styled the first CLK, the C-Sportcoupe, and is known as the stylist who penned the Maybach 57 and 62. According to a Mercedes-Benz press release, the CLS-class was produced to combine the "strong, emotive charisma" of a coupe with the "comfort and practicality" of a sedan. Save for its four-door design, the CLS's design tends towards a coupe, as its sleek roofline reduces the rear passenger room to a 2+2 arrangement, and it offers a smaller selection of engines tending towards high powered of the range, compared to contemporary sedans such as the E-Class.