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  2. Reverse telephone directory - Wikipedia

    en.wikipedia.org/wiki/Reverse_telephone_directory

    A reverse telephone directory (also known as a gray pages directory, criss-cross directory or reverse phone lookup) is a collection of telephone numbers and associated customer details. However, unlike a standard telephone directory, where the user uses customer's details (such as name and address) in order to retrieve the telephone number of ...

  3. United Airlines Flight 93 - Wikipedia

    en.wikipedia.org/wiki/United_Airlines_Flight_93

    Hijackers United Flight 93 seating chart The hijacking of Flight 93 was led by Ziad Jarrah, a member of al-Qaeda. Jarrah was born in Lebanon to a wealthy family and had a secular upbringing. He intended to become a pilot and moved to Germany in 1996, enrolling at the University of Greifswald to study German. A year later, he moved to Hamburg and began studying aeronautical engineering at the ...

  4. Texas Health and Human Services Commission - Wikipedia

    en.wikipedia.org/wiki/Texas_Health_and_Human...

    Texas Health and Human Services Commission. The Brown-Heatly Building houses the commission's headquarters in Austin; it is partly named for the late State Representative William S. Heatly of Paducah in Cottle County. The Texas Health and Human Services Commission (HHSC) is an agency within the Texas Health and Human Services System.

  5. How to Use Medicare SHIP Services - Healthline

    www.healthline.com/health/medicare/medicare-ship

    How it works. Takeaway. Medicare SHIP (State Health Insurance Assistance Program) is a free, one-on-one counseling service to help answer your questions about Medicare coverage and plan options ...

  6. Telephone directory - Wikipedia

    en.wikipedia.org/wiki/Telephone_directory

    Telephone directory. A telephone directory, commonly called a telephone book, telephone address book, phonebook, or the white and yellow pages, is a listing of telephone subscribers in a geographical area or subscribers to services provided by the organization that publishes the directory. Its purpose is to allow the telephone number of a ...

  7. Whitepages (company) - Wikipedia

    en.wikipedia.org/wiki/Whitepages_(company)

    Whitepages is a provider of online directory services, fraud screening, background checks and identity verification for consumers and businesses. It has the largest database available of contact information on US residents. [3] Whitepages was founded in 1997 as a hobby for then- Stanford student Alex Algard.

  8. Pennsylvania Public School Employees' Retirement System

    en.wikipedia.org/wiki/Pennsylvania_Public_School...

    The Public School Employees’ Retirement System (PSERS) is a pension fund for public school employees in the Commonwealth of Pennsylvania.Eligible members include all full-time public school employees, part-time hourly public school employees who render at least 500 hours of service in the school year, and part-time per diem public school employees who render at least 80 days of service in ...

  9. Kramers' theorem - Wikipedia

    en.wikipedia.org/wiki/Kramers'_theorem

    Kramers' theorem. In quantum mechanics, the Kramers' degeneracy theorem states that for every energy eigenstate of a time-reversal symmetric system with half-integer total spin, there is another eigenstate with the same energy related by time-reversal. In other words, the degeneracy of every energy level is an even number if it has half-integer ...