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  2. Keren, Eritrea - Wikipedia

    en.wikipedia.org/wiki/Keren,_Eritrea

    Keren ( Tigrinya and Tigre: ከረን, Italian: Cheren ), historically known as Sanhit, [2] is the second-largest city in Eritrea. It is situated around 91 kilometres (57 mi) northwest of Asmara at an elevation of 1,590 metres (5,220 ft) above sea-level. The city sprawls on a wide basin surrounded by granitic mountains on all sides.

  3. Karen Spärck Jones - Wikipedia

    en.wikipedia.org/wiki/Karen_Spärck_Jones

    Karen Ida Boalth Spärck Jones FBA (26 August 1935 – 4 April 2007) was a self-taught programmer and a pioneering British computer scientist responsible for the concept of inverse document frequency (IDF), a technology that underlies most modern search engines.

  4. Microsoft PowerPoint - Wikipedia

    en.wikipedia.org/wiki/Microsoft_PowerPoint

    Archived from the original on October 8, 2015. Retrieved August 25, 2017. Microsoft PowerPoint, virtual presentation software developed by Robert Gaskins and Dennis Austin for the American computer software company Forethought, Inc. The program, initially named Presenter, was released for the Apple Macintosh in 1987.

  5. Rayleigh wave - Wikipedia

    en.wikipedia.org/wiki/Rayleigh_wave

    The speeds are shown in dimensionless units. Rayleigh waves are a type of surface wave that travel near the surface of solids. Rayleigh waves include both longitudinal and transverse motions that decrease exponentially in amplitude as distance from the surface increases. There is a phase difference between these component motions.

  6. Sunan Bonang - Wikipedia

    en.wikipedia.org/wiki/Sunan_Bonang

    Sunan Bonang. Sunan Bonang (born Raden Makdum Ibrahim) [2] was one of the Wali Songo, along with his father Sunan Ampel and his brother Sunan Drajat . He was a descendant of the Majapahit nobility in Tuban and a Chinese captain named Gan Eng Cu. [3] However, another source stated that he was a son of Sunan Ampel and female noble, Nyai Ageng ...

  7. Basic anxiety - Wikipedia

    en.wikipedia.org/wiki/Basic_anxiety

    Basic anxiety. Basic anxiety is a term used by psychoanalytic theorist Karen Horney. She believed that neurosis resulted from basic anxiety caused by interpersonal relationships. Her theory proposes that strategies used to cope with anxiety can be overused, causing them to take on the appearance of needs. According to Horney, basic anxiety (and ...

  8. Fall of the Derg regime - Wikipedia

    en.wikipedia.org/wiki/Fall_of_the_Derg_regime

    The fall of the Derg, also known as Downfall of the Derg, was a military campaign that resulted in the defeat of the ruling Marxist–Leninist military junta, the Derg, by the rebel coalition Ethiopian People's Revolutionary Democratic Front (EPRDF) on 28 May 1991 in Addis Ababa, ending the Ethiopian Civil War. The Derg took power after ...

  9. Shlomo Havlin - Wikipedia

    en.wikipedia.org/wiki/Shlomo_Havlin

    Shlomo Havlin ( Hebrew: שלמה הבלין) (born July 21, 1942) is a professor in the Department of Physics at Bar-Ilan University, Ramat-Gan, Israel. He served as President of the Israel Physical Society (1996–1999), Dean of Faculty of Exact Sciences (1999–2001), chairman, Department of Physics (1984–1988). In 2018 he won the Israel ...