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Portal. (video game) Portal is a 2007 puzzle - platform game developed and published by Valve. It was released in a bundle, The Orange Box, for Windows, Xbox 360 and PlayStation 3, and has been since ported to other systems, including Mac OS X, Linux, Android (via Nvidia Shield ), and Nintendo Switch .
Portal is a series of first-person puzzle-platform video games developed by Valve.Set in the Half-Life universe, the two main games in the series, Portal (2007) and Portal 2 (2011), center on a woman, Chell, forced to undergo a series of tests within the Aperture Science Enrichment Center by a malicious artificial intelligence, GLaDOS, that controls the facility.
Portal 2 is a 2011 puzzle-platform game developed by Valve for Windows, Mac OS X, Linux, PlayStation 3, and Xbox 360. The digital PC version is distributed online by Valve's Steam service, while all retail editions were distributed by Electronic Arts. A port for the Nintendo Switch was included as part of Portal: Companion Collection .
As part of the Steam Deck's launch, Valve released Aperture Desk Job, a spinoff game in the Portal series, for free on March 1, 2022, available to all Windows and Linux/SteamOS users. The game is designed to demonstrate the various features of the Steam Deck, though is still playable with a controller for other systems. [67]
Mitral valve replacement is a procedure whereby the diseased mitral valve of a patient's heart is replaced by either a mechanical or tissue (bioprosthetic) valve. The mitral valve may need to be replaced because: [citation needed] The valve is leaky ( mitral valve regurgitation) The valve is narrowed and doesn't open properly ( mitral valve ...
ICD-9-CM. 35.21 - 35.22 V43.3. [ edit on Wikidata] Aortic valve replacement is a procedure whereby the failing aortic valve of a patient's heart is replaced with an artificial heart valve. The aortic valve may need to be replaced because: The valve is leaky ( aortic insufficiency, also known as aortic regurgitation)
In the circulatory system of vertebrates, a portal venous system occurs when a capillary bed pools into another capillary bed through veins, without first going through the heart. Both capillary beds and the blood vessels that connect them are considered part of the portal venous system. Most capillary beds drain into venules and veins which ...
Portal 2: Lab Rat (2011) (first full appearance) Designed by. Michael Avon Oeming (young appearance) (Portal 2: Lab Rat) Andrea Wicklund (older appearance) (Portal 2: Lab Rat) Voiced by. Unknown (vocalizations in some music tracks) Doug Rattmann, often referred to as the " Ratman" is a character in both Portal and Portal 2.
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