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  2. This is where gas exchange takes place. Oxygen typically diffuses from the alveoli into the blood running through the capillaries. In this type of hypoxemia, the diffusion of oxygen into the ...

  3. Key exchange - Wikipedia

    en.wikipedia.org/wiki/Key_exchange

    Key exchange (also key establishment) is a method in cryptography by which cryptographic keys are exchanged between two parties, allowing use of a cryptographic algorithm . In the Diffie–Hellman key exchange scheme, each party generates a public/private key pair and distributes the public key. After obtaining an authentic copy of each other's ...

  4. Dollar sign - Wikipedia

    en.wikipedia.org/wiki/Dollar_sign

    The dollar sign, also known as peso sign, is a currency symbol consisting of a capital S crossed with one or two vertical strokes ( $ or depending on typeface ), used to indicate the unit of various currencies around the world, including most currencies denominated "peso" and "dollar". The explicitly double-barred sign is called cifrão in the ...

  5. Euro sign - Wikipedia

    en.wikipedia.org/wiki/Euro_sign

    The euro sign ( €) is the currency sign used for the euro, the official currency of the eurozone and adopted, although not required to, by Kosovo and Montenegro. The design was presented to the public by the European Commission on 12 December 1996. It consists of a stylized letter E (or epsilon ), crossed by two lines instead of one.

  6. What to Know About Impaired Gas Exchange in COPD - Healthline

    www.healthline.com/health/copd/impaired-gas...

    Gas exchange is the process where carbon dioxide, a waste gas, is exchanged in the lungs for fresh oxygen. Let’s examine how it works. When you breathe in, your lungs expand and air enters ...

  7. Pound sign - Wikipedia

    en.wikipedia.org/wiki/Pound_sign

    The pound sign ( £) is the symbol for the pound unit of sterling – the currency of the United Kingdom and its associated Crown Dependencies and British Overseas Territories and previously of Great Britain and of the Kingdom of England. The same symbol is used for other currencies called pound, such as the Egyptian and Syrian pounds.

  8. Telephone exchange - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange

    A telephone exchange, also known as a telephone switch or central office, is a crucial component in the public switched telephone network (PSTN) or large enterprise telecommunications systems. It facilitates the interconnection of telephone subscriber lines or digital system virtual circuits, enabling telephone calls between subscribers.

  9. Delaware police exchange gunfire with woman in police chase ...

    www.aol.com/news/delaware-police-exchange...

    A police pursuit through two states that involved two separate shootouts with law enforcement officers and several crashes ended with the death of the woman being sought, authorities said.