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Ignatios Antoniadis
Ignatios Antoniadis (born 2 December 1955 in Chios) is a Greek theoretical physicist, specializing in string theory and particle physics. Education and career Antoniadis received in 1977 a degree in mathematics from the University of Athens and in 1978 a ''Diplôme d'études approfondies'' (DEA) in theoretical physics from Pierre and Marie Curie University. He received in 1980 his ''Thèse de troisème cycle'' (doctorate) from the École normale supérieure and in 1983 his ''Thèse d'État'' (higher doctorate) from the École polytechnique. (In 1984 the French academic system replaced the ''Thése d'État'' with the habilitation.) At ''Centre national de la recherche scientifique'' (CNRS), he was from 1982 to 1986 an '' attaché de recherche'' at the ''Centre de physique théorique'' (CPHT) of the École polytechnique; during those years he was also from 1983 to 1986 a research associate at SLAC. At CNRS, he was from 1986 to 1992 a '' chargé de recherche'' and from 1992 to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chios
Chios (; el, Χίος, Chíos , traditionally known as Scio in English) is the fifth largest Greek island, situated in the northern Aegean Sea. The island is separated from Turkey by the Chios Strait. Chios is notable for its exports of mastic gum and its nickname is "the Mastic Island". Tourist attractions include its medieval villages and the 11th-century monastery of Nea Moni, a UNESCO World Heritage Site. Administratively, the island forms a separate municipality within the Chios regional unit, which is part of the North Aegean region. The principal town of the island and seat of the municipality is Chios. Locals refer to Chios town as ''Chora'' ( literally means land or country, but usually refers to the capital or a settlement at the highest point of a Greek island). The island was also the site of the Chios massacre, in which thousands of Greeks on the island were massacred, expelled, and enslaved by Ottoman troops during the Greek War of Independence in 1822. Geogra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KU Leuven
KU Leuven (or Katholieke Universiteit Leuven) is a Catholic research university in the city of Leuven, Belgium. It conducts teaching, research, and services in computer science, engineering, natural sciences, theology, humanities, medicine, law, canon law, business, and social sciences. In addition to its main campus in Leuven, it has satellite campuses in Kortrijk, Antwerp, Ghent, Bruges, Ostend, Geel, Diepenbeek, Aalst, Sint-Katelijne-Waver, and in Belgium's capital Brussels. KU Leuven is the largest university in Belgium and the Low Countries. In 2017–18, more than 58,000 students were enrolled. Its primary language of instruction is Dutch, although several programs are taught in English, particularly graduate and postgraduate degrees. KU Leuven consistently ranks among the top 100 universities in the world by major ranking tables. As of 2021, it ranks 42nd in the ''Times Higher Education'' rankings, 70th according QS World University Rankings, 87th according to the Sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living People
Related categories * :Year of birth missing (living people) / :Year of birth unknown * :Date of birth missing (living people) / :Date of birth unknown * :Place of birth missing (living people) / :Place of birth unknown * :Year of death missing / :Year of death unknown * :Date of death missing / :Date of death unknown * :Place of death missing / :Place of death unknown * :Missing middle or first names See also * :Dead people * :Template:L, which generates this category or death years, and birth year and sort keys. : {{DEFAULTSORT:Living people 21st-century people People by status ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1955 Births
Events January * January 3 – José Ramón Guizado becomes president of Panama. * January 17 – , the first nuclear-powered submarine, puts to sea for the first time, from Groton, Connecticut. * January 18– 20 – Battle of Yijiangshan Islands: The Chinese Communist People's Liberation Army seizes the islands from the Republic of China (Taiwan). * January 22 – In the United States, The Pentagon announces a plan to develop intercontinental ballistic missiles (ICBMs), armed with nuclear weapons. * January 23 – The Sutton Coldfield rail crash kills 17, near Birmingham, England. * January 25 – The Presidium of the Supreme Soviet of the Soviet Union announces the end of the war between the USSR and Germany, which began during World War II in 1941. * January 28 – The United States Congress authorizes President Dwight D. Eisenhower to use force to protect Formosa from the People's Republic of China. February * February 10 – The United States Sev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
YouTube
YouTube is a global online video platform, online video sharing and social media, social media platform headquartered in San Bruno, California. It was launched on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim. It is owned by Google, and is the List of most visited websites, second most visited website, after Google Search. YouTube has more than 2.5 billion monthly users who collectively watch more than one billion hours of videos each day. , videos were being uploaded at a rate of more than 500 hours of content per minute. In October 2006, YouTube was bought by Google for $1.65 billion. Google's ownership of YouTube expanded the site's business model, expanding from generating revenue from advertisements alone, to offering paid content such as movies and exclusive content produced by YouTube. It also offers YouTube Premium, a paid subscription option for watching content without ads. YouTube also approved creators to participate in Google's Google AdSens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flipped SU(5)
The Flipped SU(5) model is a grand unified theory (GUT) first contemplated by Stephen Barr in 1982, and by Dimitri Nanopoulos and others in 1984. Ignatios Antoniadis, John Ellis, John Hagelin, and Dimitri Nanopoulos developed the supersymmetric flipped SU(5), derived from the deeper-level superstring. Some current efforts to explain the theoretical underpinnings for observed neutrino masses are being developed in the context of supersymmetric flipped . Flipped is not a fully unified model, because the factor of the Standard Model gauge group is within the factor of the GUT group. The addition of states below ''M''x in this model, while solving certain threshold correction issues in string theory, makes the model merely descriptive, rather than predictive. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Ioannina
The University of Ioannina (UoI; Greek: Πανεπιστήμιο Ιωαννίνων, ''Panepistimio Ioanninon'') is a university located 5 km southwest of Ioannina, Greece. The university was founded in 1964, as a charter of the Aristotle University of Thessaloniki and became an independent university in 1970. As of 2017, there is a student population of 25,000 enrolled at the university (21,900 at the undergraduate level and 3,200 at the postgraduate level) and 580 faculty members, while teaching is further supplemented by 171 Teaching Fellows and 132 Technical Laboratory staff. The university Administrative Services are staffed with 420 employees. University of Ioannina is one of the leading academic institutions in Greece.UniversityRankings.ch (SERI) 2015 - University of IoanninRetrieved in 2016-02-03. History The efforts for the establishment of a University in Ioannina and in the wider area were apparent in the last years before the revolution. At that time, promine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Société Française De Physique
The Société Française de Physique (SFP), or the French Physical Society, is the main professional society of French physicists. It was founded in 1873 by Charles Joseph d'Almeida. History The French Physical Society is a state-approved non-profit scientific society aiming to promote the knowledge of physics. Its member include physicists living in France, regardless of background. As well as promoting physics, the SFP also acts as a lobbying organization with French policymakers alongside other scientific societies, the like the French Academy of Sciences, French Society of Mathematicians, and Union of Physicists. The SFP organizes a large number of events (conferences, workshops, exhibitions, etc.) for academic and general audiences. The SFP edits the ''Bulletin Newsletters'' and the review ''Reflets de la Physique''. Each year, the SFP awards several prizes to physicists in honor of specific works or actions towards the promotion of physics outside the community. The S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superstring Theory
Superstring theory is an attempt to explain all of the particles and fundamental forces of nature in one theory by modeling them as vibrations of tiny supersymmetric strings. 'Superstring theory' is a shorthand for supersymmetric string theory because unlike bosonic string theory, it is the version of string theory that accounts for both fermions and bosons and incorporates supersymmetry to model gravity. Since the second superstring revolution, the five superstring theories are regarded as different limits of a single theory tentatively called M-theory. Background The deepest problem in theoretical physics is harmonizing the theory of general relativity, which describes gravitation and applies to large-scale structures (stars, galaxies, super clusters), with quantum mechanics, which describes the other three fundamental forces acting on the atomic scale. The development of a quantum field theory of a force invariably results in infinite possibilities. Physicists developed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grand Unified Theory
A Grand Unified Theory (GUT) is a model in particle physics in which, at high energies, the three gauge interactions of the Standard Model comprising the electromagnetic, weak, and strong forces are merged into a single force. Although this unified force has not been directly observed, many GUT models theorize its existence. If unification of these three interactions is possible, it raises the possibility that there was a grand unification epoch in the very early universe in which these three fundamental interactions were not yet distinct. Experiments have confirmed that at high energy the electromagnetic interaction and weak interaction unify into a single electroweak interaction. GUT models predict that at even higher energy, the strong interaction and the electroweak interaction will unify into a single electronuclear interaction. This interaction is characterized by one larger gauge symmetry and thus several force carriers, but one unified coupling constant. Unifying ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supersymmetry
In a supersymmetric theory the equations for force and the equations for matter are identical. In theoretical and mathematical physics, any theory with this property has the principle of supersymmetry (SUSY). Dozens of supersymmetric theories exist. Supersymmetry is a spacetime symmetry between two basic classes of particles: bosons, which have an integer-valued spin and follow Bose–Einstein statistics, and fermions, which have a half-integer-valued spin and follow Fermi–Dirac statistics. In supersymmetry, each particle from one class would have an associated particle in the other, known as its superpartner, the spin of which differs by a half-integer. For example, if the electron exists in a supersymmetric theory, then there would be a particle called a ''"selectron"'' (superpartner electron), a bosonic partner of the electron. In the simplest supersymmetry theories, with perfectly " unbroken" supersymmetry, each pair of superpartners would share the same mass and intern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quantum Gravity
Quantum gravity (QG) is a field of theoretical physics that seeks to describe gravity according to the principles of quantum mechanics; it deals with environments in which neither gravitational nor quantum effects can be ignored, such as in the vicinity of black holes or similar compact astrophysical objects, such as neutron stars. Three of the four fundamental forces of physics are described within the framework of quantum mechanics and quantum field theory. The current understanding of the fourth force, gravity, is based on Albert Einstein's general theory of relativity, which is formulated within the entirely different framework of classical physics. However, that description is incomplete: describing the gravitational field of a black hole in the general theory of relativity leads physical quantities, such as the spacetime curvature, to diverge at the center of the black hole. This signals the breakdown of the general theory of relativity and the need for a theory that goes b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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