Hamdy Doweidar
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Hamdy Doweidar Taki El-Din Doweidar (PhD, DSc) was an Egyptian
condensed matter physicist Condensed matter physics is the field of physics that deals with the macroscopic and microscopic physical properties of matter, especially the solid and liquid phases, that arise from electromagnetic forces between atoms and electrons. More gene ...
whose research topics included inorganic glasses, glass-ceramics, bio-active glasses, and structure-property correlations. He developed the Doweidar Model which is used to correlate density, thermal expansion coefficient, molar refraction, and refractive index with the concentration of structural units in numerous types of glass. Doweidar also obtained a patent with two researchers for the preparation of a biologically active glass ionomer cement as a dental filling, characterized by vital activity due to the presence of bioactive crystalline phases in the retina glass (such as apatite and fluoroapatite), which react with SBF simulating solution to precipitate layers of hydroxyapatite and hydroxyapatite. These represent the basic crystalline phases in the formation of bones and teeth. He was a Professor Emeritus at the
Mansoura University Mansoura University was founded in 1972 in Mansoura city, Egypt. It is in the middle of the Nile Delta. It is one of the biggest Egyptian universities and has contributed much to the cultural and scientific life in Mansoura and Egypt. History ...
.


Education and career

Doweidar graduated from
Assiut University Assiut University is a university located in Assiut, Egypt. It was established in October 1957 as the first university in Upper Egypt. Statistics *Faculty members: 2,442 *Assistant lecturers and demonstrators: 1,432 *Administrative staff: 11 ...
in 1964 with a bachelor's in physics and chemistry, a master's in Physical chemistry from
Cairo University Cairo University () is Egypt's premier public university. Its main campus is in Giza, immediately across the Nile from Cairo. It was founded on 21 December 1908;"Brief history and development of Cairo University." Cairo University Faculty of En ...
in 1969, and a Ph.D. in applied physics from
Bauhaus-Universität Weimar The Bauhaus-Universität Weimar is a university located in Weimar, Germany, and specializes in the artistic and technical fields. Established in 1860 as the Great Ducal Saxon Art School, it gained collegiate status on 3 June 1910. In 1919 the s ...
in 1974. Doweidar was a researcher at the National Research Centre from 1965 to 1975 and became an associate professor at
Mansoura University Mansoura University was founded in 1972 in Mansoura city, Egypt. It is in the middle of the Nile Delta. It is one of the biggest Egyptian universities and has contributed much to the cultural and scientific life in Mansoura and Egypt. History ...
until 1986, when he became a Distinguished Professor. In 1977, Doweidar found the Glass Research Laboratory at the Mansoura University. He was a visiting professor at the
École Normale Supérieure École or Ecole may refer to: * an elementary school in the French educational stages normally followed by Secondary education in France, secondary education establishments (collège and lycée) * École (river), a tributary of the Seine flowing i ...
in Algeria from 1980 to 1984, and at the
Sanaa University Sana'a University ( ) was established in 1970 as the first and the primary university in the Yemen Arab Republic (North Yemen), now the Republic of Yemen (see also Aden University). It is located in Sanaa, the capital of Yemen, and is currently o ...
in Yemen from 1990 to 1994.


Recognition

Doweidar has received the Award of Academy of Scientific Research and Technology (Promotional State-Prize in Physics), Cairo in 1999, the Mansoura University Award (Distinction Prize in Physics) in 2000, and the Scopus Award for contribution to materials Science, presented from Elsevier and the Egyptian Ministry of High Education in 2008. He has over 120 peer-reviewed publications in international journals and was named one of the world's top 2% most cited scientists by
Stanford University Leland Stanford Junior University, commonly referred to as Stanford University, is a Private university, private research university in Stanford, California, United States. It was founded in 1885 by railroad magnate Leland Stanford (the eighth ...
in 2019, 2020, 2021, 2022, and 2023.


References

{{DEFAULTSORT:Doweidar, Hamdy Academic staff of Mansoura University Cairo University alumni Bauhaus University, Weimar alumni Assiut University alumni Condensed matter physicists 20th-century physicists Egyptian physicists