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Karimat El-Sayed
Karimat El-Sayed is an Egyptian academic, crystallographer, and proponent of women's education. She is a professor of crystallography at Ain Shams University. She was president of the International Federation of Crystals, Education Division for three years. Biography El-Sayed's father was an Arabic teacher; her brothers and sisters are doctors and scientists. Her father was open-minded about her educational ambitions but her mother worried about the family's reputation and tried to have her married off after she studied mathematics and physics at Ain Shams University. El-Sayed completed her PhD at University College London under Kathleen Lonsdale in 1965. Under Lonsdale's guidance she had been able to correlate the atomic vibration of materials with the observed expansion of that material due to an increase in temperature.A Woman of Subs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crystallography
Crystallography is the experimental science of determining the arrangement of atoms in crystalline solids. Crystallography is a fundamental subject in the fields of materials science and solid-state physics (condensed matter physics). The word "crystallography" is derived from the Greek word κρύσταλλος (''krystallos'') "clear ice, rock-crystal", with its meaning extending to all solids with some degree of transparency, and γράφειν (''graphein'') "to write". In July 2012, the United Nations recognised the importance of the science of crystallography by proclaiming that 2014 would be the International Year of Crystallography. denote a direction vector (in real space). * Coordinates in ''angle brackets'' or ''chevrons'' such as <100> denote a ''family'' of directions which are related by symmetry operations. In the cubic crystal system for example, would mean 00 10 01/nowiki> or the negative of any of those directions. * Miller indices in ''parentheses'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alumni Of University College London
Alumni (singular: alumnus (masculine) or alumna (feminine)) are former students of a school, college, or university who have either attended or graduated in some fashion from the institution. The feminine plural alumnae is sometimes used for groups of women. The word is Latin and means "one who is being (or has been) nourished". The term is not synonymous with "graduate"; one can be an alumnus without graduating ( Burt Reynolds, alumnus but not graduate of Florida State, is an example). The term is sometimes used to refer to a former employee or member of an organization, contributor, or inmate. Etymology The Latin noun ''alumnus'' means "foster son" or "pupil". It is derived from PIE ''*h₂el-'' (grow, nourish), and it is a variant of the Latin verb ''alere'' "to nourish".Merriam-Webster: alumnus .. Separate, but from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Academic Staff Of Ain Shams University
An academy (Attic Greek: Ἀκαδήμεια; Koine Greek Ἀκαδημία) is an institution of secondary or tertiary higher learning (and generally also research or honorary membership). The name traces back to Plato's school of philosophy, founded approximately 385 BC at Akademia, a sanctuary of Athena, the goddess of wisdom and skill, north of Athens, Greece. Etymology The word comes from the ''Academy'' in ancient Greece, which derives from the Athenian hero, ''Akademos''. Outside the city walls of Athens, the gymnasium was made famous by Plato as a center of learning. The sacred space, dedicated to the goddess of wisdom, Athena, had formerly been an olive grove, hence the expression "the groves of Academe". In these gardens, the philosopher Plato conversed with followers. Plato developed his sessions into a method of teaching philosophy and in 387 BC, established what is known today as the Old Academy. By extension, ''academia'' has come to mean the accumulation, dev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ain Shams University Alumni
Ain (, ; frp, En) is a department in the Auvergne-Rhône-Alpes region in Eastern France. Named after the Ain river, it is bordered by the Saône and Rhône rivers. Ain is located on the country's eastern edge, on the Swiss border, where it neighbours the cantons of Geneva and Vaud. In 2019, it had a population of 652,432.Populations légales 2019: 01 Ain INSEE Ain is composed of four geographically different areas (, , and |
Year Of Birth Missing (living People)
A year or annus is the orbital period of a planetary body, for example, the Earth, moving in its orbit around the Sun. Due to the Earth's axial tilt, the course of a year sees the passing of the seasons, marked by change in weather, the hours of daylight, and, consequently, vegetation and soil fertility. In temperate and subpolar regions around the planet, four seasons are generally recognized: spring, summer, autumn and winter. In tropical and subtropical regions, several geographical sectors do not present defined seasons; but in the seasonal tropics, the annual wet and dry seasons are recognized and tracked. A calendar year is an approximation of the number of days of the Earth's orbital period, as counted in a given calendar. The Gregorian calendar, or modern calendar, presents its calendar year to be either a common year of 365 days or a leap year of 366 days, as do the Julian calendars. For the Gregorian calendar, the average length of the calendar year (the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marie Curie
Marie Salomea Skłodowska–Curie ( , , ; born Maria Salomea Skłodowska, ; 7 November 1867 – 4 July 1934) was a Polish and naturalized-French physicist and chemist who conducted pioneering research on radioactivity. She was the first woman to win a Nobel Prize, the first person and the only woman to win a Nobel Prize twice, and the only person to win a Nobel Prize in two scientific fields. Her husband, Pierre Curie, was a co-winner of her first Nobel Prize, making them the first-ever married couple to win the Nobel Prize and launching the Curie family legacy of five Nobel Prizes. She was, in 1906, the first woman to become a professor at the University of Paris. She was born in Warsaw, in what was then the Kingdom of Poland, part of the Russian Empire. She studied at Warsaw's clandestine Flying University and began her practical scientific training in Warsaw. In 1891, aged 24, she followed her elder sister Bronisława to study in Paris, where she earned her highe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ain Shams University
Ain Shams University ( ar, جامعة عين شمس) is a public university located in Cairo, Egypt. Founded in 1950, the university provides education at the undergraduate, graduate and post-graduate levels. History Ain Shams University was founded in July 1950, the third-oldest non-sectarian native public Egyptian university (ancient Islamic universities such as Al-Azhar and private institutions such as the American University in Cairo are older), under the name of Ibrahim Pasha's University. Its site used to be a former royal palace, called the Zafarana Palace. The two earlier universities of this kind are Cairo University ( Fuad I university formerly) and Alexandria University ( Farouk I university formerly). When it was first established, Ain Shams University had a number of faculties and academic institutes, which were later developed into a university. The university's academic structure includes 14 faculties, 1 college and 2 high institutes plus 12 centers and special un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
King Abdul-Aziz University
King Abdulaziz University (KAU) ( ar, جامعة الملك عبد العزيز) is a public university in Jeddah, Saudi Arabia. With over 117,096 students in 2022, it is the largest university in the country. Located in south Jeddah, the university is the center of teaching and research of the city, comprising 24 faculties, 15 of these are located on the campus and 9 are off-campus. The university also offers some courses that are unavailable at any other universities in Saudi Arabia, such as marine science, meteorology, and astronomy. It was established in 1967 as a private university by a group of businessmen led by Muhammad Bakhashab and including author Hamza Bogary. In 1974, King Abdulaziz University was converted to a public university by a decision of the Saudi Cabinet under King Faisal's orders. It is ranked as the #1 university in the Middle East by U.S. News & World Report Best Global University Ranking and the #1 university in the Arab world by Times H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atom
Every atom is composed of a nucleus and one or more electrons bound to the nucleus. The nucleus is made of one or more protons and a number of neutrons. Only the most common variety of hydrogen has no neutrons. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small, typically around 100 picometers across. They are so small that accurately predicting their behavior using classical physics, as if they were tennis balls for example, is not possible due to quantum effects. More than 99.94% of an atom's mass is in the nucleus. The protons have a positive electric charge, the electrons have a negative electric charge, and the neutrons have no electric charge. If the number of protons and electrons are equal, then the atom is electrically neutral. If an atom has more or fewer electrons than protons, then it has an overall negative or positive charge, respectively – such atoms are called ions. The electrons of an atom are a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
