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László Tisza

László Tisza was a Hungarian-born American physicist, Professor of Physics Emeritus at MIT. He was a colleague of famed physicists Edward Teller, Lev Landau and Fritz London, initiated the two-fluid theory of liquid helium. In 1941, Tisza immigrated to the United States and joined the faculty at the Massachusetts Institute of Technology, his research areas included theoretical physics and the history and philosophy of science on the foundation of thermodynamics and quantum mechanics. He taught at MIT until 1973. Tisza was the author of Generalized Thermodynamics; the 1982 publication, Physics as Natural Philosophy: Essays in Honor of László Tisza, was written by Tisza's colleagues and former students in honor of his 75th birthday. He was a Fellow of The American Physical Society and American Academy of Arts and Sciences, a John Simon Guggenheim Fellow and had been a visiting professor at the University of Paris in Sorbonne. Vera and Laszlo Tisza House MIT site – notice of Tisza's death John Simon Guggenheim Fellowship site

Abdelmahmood Abdelhaleem

Abdelmahmood Abdelhaleem Mohamad is a Sudanese diplomat. Since September 2006, Abdelhaleem has been his country's ambassador to the United Nations. Abdelhaleem began his career in the Sudanese Foreign Ministry in 1975 after receiving his Bachelor of Science degree in Political Science from the University of Khartoum. In 1978, he received a master’s degree in international relations from Ohio University, he has served across Africa and the Greater Middle East for Sudan, including Saudi Arabia, Ethiopia and Afghanistan. In an interview in a report on the conflict in Darfur by PBS's Frontline, he said, "We are a developing country, we have our shortcomings, but we are unfairly treated. The issue of Darfur has been blown out of proportion." Biography UN.org PBS Frontline program On Our Watch