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  2. Differential form - Wikipedia

    en.wikipedia.org/wiki/Differential_form

    The 2-form , which is dual to the Faraday form, is also called Maxwell 2-form. Electromagnetism is an example of a U(1) gauge theory . Here the Lie group is U(1) , the one-dimensional unitary group , which is in particular abelian .

  3. One half - Wikipedia

    en.wikipedia.org/wiki/One_half

    One half is a rational number that lies midway between nil and unity (which are the elementary additive and multiplicative identities) as the quotient of the first two non-zero integers, . It has two different decimal representations in base ten, the familiar and the recurring , with a similar pair of expansions in any even base; while in odd ...

  4. 211 (telephone number) - Wikipedia

    en.wikipedia.org/wiki/211_(telephone_number)

    211 is a special abbreviated telephone number reserved in the North American Numbering Plan (NANP) as an easy-to-remember three-digit code to reach information and referral services to health, human, and social service organizations. Like the emergency telephone number 911, 211 is one of the eight N11 codes of the North American Numbering Plan ...

  5. SIPRNet - Wikipedia

    en.wikipedia.org/wiki/SIPRNet

    Header of an unclassified Department of State telegram with the "SIPDIS" tag marked in red. The Secret Internet Protocol Router Network (SIPRNet) is "a system of interconnected computer networks used by the U.S. Department of Defense and the U.S. Department of State to transmit classified information (up to and including information classified SECRET) by packet switching over the 'completely ...

  6. Webmail - Wikipedia

    en.wikipedia.org/wiki/Webmail

    Webmail. Webmail (or web-based email) is an email service that can be accessed using a standard web browser. It contrasts with email service accessible through a specialised email client software. Additionally, many internet service providers (ISP) provide webmail as part of their internet service package. Similarly, some web hosting providers ...

  7. One-form (differential geometry) - Wikipedia

    en.wikipedia.org/wiki/One-form_(differential...

    In a local coordinate system, a one-form is a linear combination of the differentials of the coordinates: where the are smooth functions. From this perspective, a one-form has a covariant transformation law on passing from one coordinate system to another. Thus a one-form is an order 1 covariant tensor field .

  8. AOL Mail

    mail.aol.com/?icid=aol.com-nav

    We support over 70+ languages. Start for free. Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Can GFR Be Improved? Lifestyle Changes That May Help - Healthline

    www.healthline.com/health/kidney-disease/can-gfr...

    FAQ. Takeaway. You may be able to increase your glomerular filtration rate (GFR) with changes to your lifestyle and diet. Some medications or supplements may also help improve kidney function ...