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  2. E/A ratio - Wikipedia

    en.wikipedia.org/wiki/E/A_ratio

    E/A ratio. The E/A ratio is a marker of the function of the left ventricle of the heart. It represents the ratio of peak velocity blood flow from left ventricular relaxation in early diastole (the E wave) to peak velocity flow in late diastole caused by atrial contraction (the A wave). [1] It is calculated using Doppler echocardiography, an ...

  3. Academic grading in the United States - Wikipedia

    en.wikipedia.org/wiki/Academic_grading_in_the...

    v. t. e. In the United States, academic grading commonly takes on the form of five, six or seven letter grades. Traditionally, the grades are A+, A, A−, B+, B, B−, C+, C, C−, D+, D, D− and F, with A+ being the highest and F being lowest. In some cases, grades can also be numerical. Numeric-to-letter-grade conversions generally vary from ...

  4. Evening Standard - Wikipedia

    en.wikipedia.org/wiki/Evening_Standard

    Headlines of the Evening Standard on the day of London bombing on 7 July 2005, at Waterloo station Unloading the Evening Standard at Chancery Lane Station, November 2014. The Evening Standard, formerly The Standard (1827–1904), is a long-established newspaper, since 2009, a local free newspaper in tabloid format, with a website on the Internet, published and distributed in London, England.

  5. List of EIA standards - Wikipedia

    en.wikipedia.org/wiki/List_of_EIA_standards

    Signal standard for non-broadcast high resolution monochrome video. EIA-343A Formerly RS-343 A. Video signal standard for high resolution monochrome CCTV. Based on EIA-343. EIA-364-38 TP-38D Cable Pull-Out Test Procedure for Electrical Connectors. EIA-370-B Designation System for Semiconductor Devices.

  6. Standard error - Wikipedia

    en.wikipedia.org/wiki/Standard_error

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate; Help; Learn to edit; Community portal; Recent changes; Upload file

  7. Power over Ethernet - Wikipedia

    en.wikipedia.org/wiki/Power_over_Ethernet

    Power over Ethernet. In this configuration, an Ethernet connection includes Power over Ethernet (PoE) (gray cable looping below), and a PoE splitter provides a separate data cable (gray, looping above) and power cable (black, also looping above) for a wireless access point (WAP). The splitter is the silver and black box in the middle between ...

  8. Scientific notation - Wikipedia

    en.wikipedia.org/wiki/Scientific_notation

    Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form, since to do so would require writing out an inconveniently long string of digits. It may be referred to as scientific form or standard index form, or standard form in the United Kingdom.

  9. ISO/IEC 17024 - Wikipedia

    en.wikipedia.org/wiki/ISO/IEC_17024

    ISO/IEC 17024. ISO/IEC 17024: Conformity assessment - General requirements for bodies operating certification of persons is an ISO / IEC standard which specifies criteria for the operation of a personnel certification body (also known as a 'certification body for persons'). The standard includes requirements for the development and maintenance ...