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Oxygen mask
An oxygen mask provides a method to transfer breathing oxygen gas from a storage tank to the lungs. Oxygen masks may cover the nose and mouth or the entire face

Oxygen tent
thumb|300pxAn oxygen tent consists of a canopy placed over the head and shoulders or over the entire body of a patient to provide oxygen at a higher level than normal.Oxygen tents are also used by athletes-see altitude tents.-External links:*

Oxygenase
An oxygenase is any enzyme that oxidizes a substrate by transferring the oxygen from molecular oxygen O2 to it. The oxygenases form a class of oxidoreductases; their EC number is EC 1.13 or EC 1.14.

Oxygenate
Oxygenated chemical compounds contain oxygen as a part of their chemical structure. The term usually refers to oxygenated fuels. Oxygenates are usually employed as gasoline additives to reduce carbon monoxide that is created during the burning of the fuel.

Oxygenation
Oxygenation may refer to:* Oxygenation , a measurement of dissolved oxygen concentration in soil or water* Oxygenation , the process by which concentrations of oxygen increase within a tissue

Oxygenator
An oxygenator is a medical device that is capable of exchanging oxygen and carbon dioxide in the blood of human patient in surgical procedures that may necessitate the interruption or cessation of blood flow in the body, a critical organ or great blood vessel

Oxymoron
An oxymoron is a figure of speech that combines contradictory terms

Oxymoron (band)
Oxymoron is a German Oi!/streetpunk band formed in 1992. The band was founded by Sucker and his cousin Björn , along with two friends, Martin and Filzlaus .-Career:

Oxypnictide
In chemistry, oxypnictides are a class of materials including oxygen, a pnictogen and one or more other elements

Oxytocin
Oxytocin is a mammalian hormone that acts primarily as a neuromodulator in the brain.Oxytocin is best known for its roles in sexual reproduction, in particular during and after childbirth

Oxytone
An oxytone is a word with the stress on the last syllable, such as the English words correct and reward. A paroxytone is stressed on the penultimate syllable. A proparoxytone is stressed on the antepenultimate syllable.-See also:*Barytone

Oy (Dark Tower)
Oy of Mid-World is a primary character in Stephen King's The Dark Tower. He was introduced in the third book, The Dark Tower III: The Waste Lands, and became a member of the ka-tet for the rest of the series.

Oye
Oye may refer to:*"Oye", the Spanish title of the Beyoncé song "Listen"*Oye: an exclamation used informally in India.*Oye, Nigeria*"Oye!", Gloria Estefan song*Oye , a 2006 album by Aterciopelados

Oyes
Oyes is a commune in the Marne department in north-eastern France.

Oyster
The word oyster is used as a common name for a number of distinct groups of bivalve molluscs which live in marine or brackish habitats. The valves are highly calcified.

Oyster (fowl)
Oysters are two small, round pieces of dark meat on the back of poultry near the thigh, in the hollow on the dorsal side of the ilium bone. Some regard the "oyster meat" to be the most flavorful and tender part of the bird, while others dislike the taste and texture.Compared to dark meat found in other parts of the bird, the oyster meat has a somewhat firm/taut texture which gives it

Oyster (novel)
-Plot introduction:In Outer Maroo, a fictional town in the outback which doesn't appear on maps, outsiders disappear and there is a queerly pungent smell, the Old Fuckatoo...-Plot summary:

Oysterband
Oysterband is a British electric folk or folk rock band formed in Canterbury in or around 1976.-Early history:

Oysterband
Oysterband is a British electric folk or folk rock band formed in Canterbury in or around 1976.-Early history:

Oystercatcher
The oystercatchers are a group of waders; they form the family Haematopodidae, which has a single genus, Haematopus. They are found on coasts worldwide apart from the polar regions and some tropical regions of Africa and South East Asia

Oz (1976 film)
Oz is a 1976 Australian film written, directed and co-produced by Chris Löfvén. It stars Joy Dunstan, Graham Matters, Bruce Spence, Gary Waddell, and Robin Ramsay; and received four nominations at the 1977 AFI Awards

Oz (2000 AD)
Oz, officially the Sydney-Melbourne Conurbation, is a fictional mega-city in the Judge Dredd comic, located in the south east of Australia. It was the main setting for the Judge Dredd strip Oz. Like most of the mega-cities of the time Oz is ruled by a Judge system. According to the Judge Dredd D20 RPG Oz was where the sport of sky surfing began.

Oz (comics)
Oz is a comic book series created by Ralph Griffth , Stuart Kerr , and Bill Bryan, artist. The series was begun by Caliber Comics

Oz (Judge Dredd story)
Oz is a mini-series featured in the comic 2000 AD, running for 26 episodes from 24 October, 1987 to 16 April, 1988.

OZ (Ultimate Marvel)
OZ is a fictitious artificial mutagen responsible for the creation of the Ultimate Marvel Universe's Spider-Man, and several of its other characters

Ozone (Eiko album)
-Track listing:#Ozone#Ginga no ko#Juuyon no Tsuki#Ai no Uta#Uchuu no Hana

Ozone (paddle steamer)
The Ozone was a ship built in 1886 near Glasgow, in Scotland. She could exceed 17 kts and is regarded as one of the finest paddle steamers ever built.

Ozonide
Ozonide is an unstable, reactive polyatomic anion O3−, derived from ozone, or an organic compound similar to organic peroxide formed by a reaction of ozone with an unsaturated compound.-Inorganic ozonides:

Von Mangoldt function
In mathematics, the von Mangoldt function is an arithmetic function named after German mathematician Hans von Mangoldt.-Definition:The von Mangoldt function, conventionally written as Λ, is defined as

Voortrekker Monument
The Voortrekker Monument is a monument in the city of Pretoria, South Africa. The massive granite structure, built to honour the Voortrekkers who left the Cape Colony between 1835 and 1854, was designed by the architect Gerard Moerdijk who had the idea to design a "monument that would stand a thousand years to describe the history and the meaning of the Great Trek to its descendants"

Vorarlberg
Vorarlberg is the westernmost federal-state of Austria. Although it is the second smallest in terms of area and population , it borders three countries: Germany , Switzerland and Liechtenstein

Voronoi diagram
In mathematics, a Voronoi diagram is a special kind of decomposition of a given space, e.g., a metric space, determined by distances to a specified family of objects in the space

Vortex
A vortex is a spinning, often turbulent,flow of fluid. Any spiral motion with closed streamlines is vortex flow. The motion of the fluid swirling rapidly around a center is called a vortex

Vortex tube
The vortex tube, also known as the Ranque-Hilsch vortex tube, is a mechanical device that separates a compressed gas into hot and cold streams. It has no moving parts.

Voss
is a municipality in Hordaland county, Norway. It is part of the traditional district of Voss. The administrative center of the municipality is the village of Vossevangen.

Vostok 1
Vostok 1 was the first spaceflight in the Vostok program and the first human spaceflight in history. The Vostok 3KA spacecraft was launched on April 12, 1961. The flight took Yuri Gagarin, a cosmonaut from the Soviet Union, into space. The flight marked the first time that a human entered outer space, as well as the first orbital flight of a manned vehicle

Vostok rocket
Vostok was a family of rockets derived from the Soviet R-7 Semyorka ICBM designed for the human spaceflight programme. This family of rockets launched the first artificial satellite and the first manned spacecraft in human history

Vostok spacecraft
The Vostok was a type of spacecraft built by the Soviet Union. The first human spaceflight in history was accomplished on this spacecraft on April 12, 1961, by Soviet cosmonaut Yuri Gagarin.

Voting age
A voting age is a minimum age established by law that a person must attain to be eligible to vote in a public election.The vast majority of countries in the world have established a voting age. Most governments consider that those of any age lower than the chosen threshold lack the necessary capacity to independently decide how to cast a vote

Voting machine
Voting machines are the total combination of mechanical, electromechanical, or electronic equipment , that is used to define ballots; to cast and count votes; to report or display election results; and to maintain and produce any audit trail information

Voting Rights Act
The Voting Rights Act of 1965 is a landmark piece of national legislation in the United States that outlawed discriminatory voting practices that had been responsible for the widespread disenfranchisement of African Americans in the U.S.

Voting system
A voting system or electoral system is a method by which voters make a choice between options, often in an election or on a policy referendum.

Voulez-Vous (song)
"Voulez-Vous" is a eurodisco track by Swedish pop group ABBA, written by Benny Andersson and Björn Ulvaeus . Agnetha Fältskog and Anni-Frid Lyngstad shared the lead vocals.

Voyager 2
The Voyager 2 spacecraft is a 722-kilogram space probe launched by NASA on August 20, 1977 to study the outer Solar System and eventually interstellar space

VRLA
A VRLA battery is a type of low-maintenance lead–acid rechargeable battery. Because of their construction, VRLA batteries do not require regular addition of water to the cells.

VRML
VRML is a standard file format for representing 3-dimensional interactive vector graphics, designed particularly with the World Wide Web in mind

Vrouw Maria
Vrouw Maria was a Dutch wooden two-masted merchant ship carrying a valuable cargo of art objects, captained by Raymund Lourens, that sank on October 9, 1771, in the outer archipelago of the municipality of Nagu, Finland, 11 kilometers south-east of the island of Jurmo. In 1999, the ship was discovered by the members of Pro Vrouw Maria, led by Rauno Koivusaari

VTK
The Visualization Toolkit is an open-source, freely available software system for 3D computer graphics, image processing and visualization. VTK consists of a C++ class library and several interpreted interface layers including Tcl/Tk, Java, and Python. Kitware, whose team created and continues to extend the toolkit, offers professional support and consulting services for VTK

Vulcana
Kate Williams , sometimes called Kate Roberts, better known by her stage name Vulcana, was a Welsh strongwoman born of Irish parents in Abergavenny, Monmouthshire.

Vulcanization
Vulcanization or vulcanisation is a chemical process for converting rubber or related polymers into more durable materials via the addition of sulfur or other equivalent "curatives." These additives modify the polymer by forming crosslinks between individual polymer chains. Vulcanized material is less sticky and has superior mechanical properties

Vulcanodon
Vulcanodon was a relatively small early sauropod dinosaur genus from the Early Jurassic of southern Africa. About 6.5 metres long, Vulcanodon was herbivorous and had unusually long bones of the first toe and large claws on the inside toes. The type species, V. karibaensis, was formally described by Michael A

Vulpes
Vulpes is a genus of the Canidae family. Its members are referred to as 'true foxes', although there are species in other genera whose common names include the word 'fox'.

Vuze
Vuze is a BitTorrent client used to transfer files via the BitTorrent protocol. Vuze is written in Java, and uses the Azureus Engine. In addition to downloading data linked to by .torrent files, Azureus allows users to view, publish and share original DVD and HD quality video content

VVL
Nissan Ecology Oriented Variable Valve Lift and Timing is an automobile variable valve timing technology developed by Nissan. VVL varies the timing, duration, and lift of valves by using hydraulic pressure switch between two different sets of camshaft lobes. It functions similarly to Honda's VTEC system.The SR20VE is the most common engine with NEO VVL

VX-4
VX-4, Air Test and Evaluation Squadron Four, , commonly referred to by its nickname, The Evaluators) was a United States Navy air test and evaluation squadron based at Naval Air Station Point Mugu, California

VxWorks
VxWorks is a real-time operating system developed as proprietary software by Wind River Systems of Alameda, California, USA. First released in 1987, VxWorks is designed for use in embedded systems.- History :

VY Canis Majoris
VY Canis Majoris is the largest known star and also one of the most luminous. Located in the constellation Canis Major, it is a red hypergiant, between 1800 and 2100 solar radii, 8.4–9.8 astronomical units in radius, about 3.0 billion km or 1.9 billion miles in diameter, and about 1.5 kiloparsecs distant from Earth

Vyasa
Vyasa is a central and revered figure in most Hindu traditions. He is also sometimes called Veda Vyasa , or Krishna Dvaipayana

Vybz Kartel
Adidja Palmer , better known as Vybz Kartel, is a Jamaican dancehall artist, songwriter and businessman. He has many nicknames, including Addi Teacher and Gaza Emperor.-Biography:

Vyshhorod
Vyshhorod is a city in the Kiev Oblast , in central Ukraine. It is the administrative centre of the Vyshhorodskyi Raion , and is located along the Dnieper River upstream from the national capital, Kiev

 
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