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  1. › wiki › Empty_stringEmpty string - Wikipedia

    In context-free grammars, a production rule that allows a symbol to produce the empty string is known as an ε-production, and the symbol is said to be "nullable". Use in programming languages. In most programming languages, strings are a data type. Strings are typically stored at distinct memory addresses (locations). Thus, the same string ...

  2. From approximately 1200 AD through 1800 AD, homicide rates from violent local episodes declined by a factor of ten, from approximately 32 deaths per 100 000 people to 3.2 per 100 000. In the 20th century the homicide rate fell to 1.4 per 100 000. Police forces seldom existed outside the cities; prisons only became common after 1800.

  3. twitpic.comTwitpic

    Dear Twitpic Community - thank you for all the wonderful photos you have taken over the years. We have now placed Twitpic in an archived state.

  4. Browse our listings to find jobs in Germany for expats, including jobs for English speakers or those in your native language.

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  6. A new annotated sample paper demonstrates the effective use of counterargument. NEW VISUALS TEACH CITATION AT A GLANCE. New full-color, annotated facsimiles of original sources show students where to look for publication information in a book, a periodical, a Web site, and a source accessed in a database.

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