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  2. History of Microsoft Exchange Server - Wikipedia

    en.wikipedia.org/wiki/History_of_Microsoft...

    The migration process from Exchange Server 5.5 necessitated having the two systems online at the same time, with user-to-mailbox mapping and a temporary translation process between the two directories. Exchange 2000 Server also added support for instant messaging, but that capability was later spun off to Microsoft Office Live Communications ...

  3. The main types are: Drug-drug interaction. This is when a medication reacts with one or more other drugs. For example, taking a cough medicine ( antitussive) and a drug to help you sleep (sedative ...

  4. Rules of the Eurovision Song Contest - Wikipedia

    en.wikipedia.org/wiki/Rules_of_the_Eurovision...

    Countries could send a maximum of two songs each. [113] [114] Participating songs should not exceed 3 to 3.5 minutes. [113] [115] Two jurors from each of the participating countries is to watch the transmission on a TV screen, and rate each song from 1 to 10, with higher scores being more appreciated.

  5. How Often Should You Change Your Pad? - Healthline

    www.healthline.com/health/menstruation/how-often...

    But you should change it before it gets full. The American College of Obstetricians and Gynecologists (ACOG) recommends changing your pad at least every 4 to 8 hours, but that’s just a very ...

  6. Economic efficiency - Wikipedia

    en.wikipedia.org/wiki/Economic_efficiency

    Economic efficiency. In microeconomics, economic efficiency, depending on the context, is usually one of the following two related concepts: [citation needed] Allocative or Pareto efficiency: any changes made to assist one person would harm another. Productive efficiency: no additional output of one good can be obtained without decreasing the ...

  7. How to Stay Focused: 10 Tips to Improve Your Focus and ...

    www.healthline.com/health/mental-health/how-to...

    playing calming ambient music or white noise. declutter the space where you will be working. 2. Coffee in small doses. Drinking coffee, or other caffeinated beverages, in small doses may ...

  8. 6 Essential Nutrients: What They Are and Why You Need Them

    www.healthline.com/health/food-nutrition/six...

    In addition to strengthening bones, calcium helps with nerve signal transmission, maintaining healthy blood pressure, and muscle contraction and relaxation. Iron supports your red blood cells and ...

  9. Exchange value - Wikipedia

    en.wikipedia.org/wiki/Exchange_value

    In political economy and especially Marxian economics, exchange value (German: Tauschwert) refers to one of the four major attributes of a commodity, i.e., an item or service produced for, and sold on the market, the other three attributes being use value, economic value, and price. [1] Thus, a commodity has the following: