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Sylvester James Gates
Sylvester James Gates Jr. (born December 15, 1950), known as S. James Gates Jr. or Jim Gates, is an American theoretical physicist who works on supersymmetry, supergravity, and superstring theory. He currently holds the Clark Leadership Chair in Science with the physics department at the University of Maryland College of Computer, Mathematical, and Natural Sciences. He is also affiliated with the University Maryland's School of Public Policy. He served on former President Barack Obama's Council of Advisors on Science and Technology. Biography Gates, the oldest of four siblings, was born in Tampa, Florida, the son of Sylvester James Gates Sr. a career U.S. Army man, and Charlie Engels Gates. His mother died when he was 11. When his father remarried, his stepmother, a teacher, brought books into the home and emphasized the importance of education. The family moved many times while Gates was growing up, but, as he was entering 11th grade, settled in Orlando, Florida, where James ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tampa, Florida
Tampa () is a city on the Gulf Coast of the United States, Gulf Coast of the U.S. state of Florida. The city's borders include the north shore of Tampa Bay and the east shore of Old Tampa Bay. Tampa is the largest city in the Tampa Bay area and the County seat, seat of Hillsborough County, Florida, Hillsborough County. With a population of 384,959 according to the 2020 census, Tampa is the third-most populated city in Florida after Jacksonville, Florida, Jacksonville and Miami and is the List of United States cities by population, 52nd most populated city in the United States. Tampa functioned as a military center during the 19th century with the establishment of Fort Brooke. The cigar industry was also brought to the city by Vicente Martinez Ybor, Vincente Martinez Ybor, after whom Ybor City is named. Tampa was formally reincorporated as a city in 1887, following the American Civil War, Civil War. Today, Tampa's economy is driven by tourism, health care, finance, insurance, tec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adinkra Symbols (physics)
In supergravity and supersymmetric representation theory, Adinkra symbols are a graphical representation of supersymmetric algebras. Mathematically they can be described as colored finite connected simple graphs, that are bipartite and n-regular. Their name is derived from Adinkra symbols of the same name, and they were introduced by Michael Faux and Sylvester James Gates in 2004. Overview One approach to the representation theory of super Lie algebras is to restrict attention to representations in one space-time dimension and having N supersymmetry generators, i.e., to (1, N) superalgebras. In that case, the defining algebraic relationship among the supersymmetry generators reduces to :\ = 2 i \delta _ \partial_\tau . Here \partial_\tau denotes partial differentiation along the single space-time coordinate. One simple realization of the (1, 1) algebra consists of a single bosonic field \phi , a fermionic field \psi , and a generator Q which acts as : Q \phi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gates Lectures
Gates is the plural of gate, a point of entry to a space which is enclosed by walls. It may also refer to: People * Gates (surname), various people with the last name * Gates Brown (1939-2013), American Major League Baseball player * Gates McFadden (born 1949), American actress and choreographer * Gates P. Thruston (1835-1912), American Civil War veteran, lawyer and businessman * Josephine Gates Kelly (1888-1976), Native American activist Places Canada * Gates, British Columbia, Canada, a rural community ** Gates River, a river in British Columbia ** Gates Valley, a valley in British Columbia ** Gates Lake, at the head of the Gates River United States * Gates, Nebraska, an unincorporated community * Gates, New York, a town ** Gates (CDP), New York, census-designated place * Gates, Oregon, a city * Gates, Tennessee, a town * Gates County, North Carolina, United States ** Gates, North Carolina, an unincorporated community in the county * Gates Pass, Arizona, a mountain pass A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Racial Segregation In The United States
In the United States, racial segregation is the systematic separation of facilities and services such as housing, healthcare, education, employment, and transportation on racial grounds. The term is mainly used in reference to the legally or socially enforced separation of African Americans from whites, but it is also used in reference to the separation of other ethnic minorities from majority and mainstream communities. While mainly referring to the physical separation and provision of separate facilities, it can also refer to other manifestations such as prohibitions against interracial marriage (enforced with anti-miscegenation laws), and the separation of roles within an institution. Notably, in the United States Armed Forces up until 1948, black units were typically separated from white units but were still led by white officers. Signs were used to indicate where African Americans could legally walk, talk, drink, rest, or eat. The U.S. Supreme Court upheld the con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jones High School (Orlando, Florida)
Jones High School is located in the Parramore/Lorna Doone neighborhood in the urban heart of Orlando, Florida at 801 S. Rio Grande Avenue. It is a public school in the Orange County School District. The school mascot is the Tiger and the colors are orange and green. In May 2008, ''Newsweek'' named Jones to its annual America's Top Public High Schools list. History The first public school for African Americans in Orlando was formed in 1895 and housed in a building on the corner of Garland Avenue and Church Street. The school was renamed Johnson Academy for principal Lymus Johnson and moved to a new building on the corner of Parramore Avenue and Jefferson Street. In 1921, a brick Colonial Revival building was constructed on the corner of Parramore Avenue and Washington Street at a cost of $34,000. In 1931 the school's first 12th grade class graduated. The school was renamed for the final time in honor of L. C. Jones, a longtime school principal and donor of the property. It w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Maryland
The University of Maryland, College Park (University of Maryland, UMD, or simply Maryland) is a public land-grant research university in College Park, Maryland. Founded in 1856, UMD is the flagship institution of the University System of Maryland. It is also the largest university in both the state and the Washington metropolitan area, with more than 41,000 students representing all fifty states and 123 countries, and a global alumni network of over 388,000. Together, its 12 schools and colleges offer over 200 degree-granting programs, including 92 undergraduate majors, 107 master's programs, and 83 doctoral programs. UMD is a member of the Association of American Universities and competes in intercollegiate athletics as a member of the Big Ten Conference. The University of Maryland's proximity to the nation's capital has resulted in many research partnerships with the federal government; faculty receive research funding and institutional support from many agencies, such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Council Of Advisors On Science And Technology
A council is a group of people who come together to consult, deliberate, or make decisions. A council may function as a legislature, especially at a town, city or county/shire level, but most legislative bodies at the state/provincial or national level are not considered councils. At such levels, there may be no separate executive branch, and the council may effectively represent the entire government. A board of directors might also be denoted as a council. A committee might also be denoted as a council, though a committee is generally a subordinate body composed of members of a larger body, while a council may not be. Because many schools have a student council, the council is the form of governance with which many people are likely to have their first experience as electors or participants. A member of a council may be referred to as a councillor or councilperson, or by the gender-specific titles of councilman and councilwoman. In politics Notable examples of types of coun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barack Obama
Barack Hussein Obama II ( ; born August 4, 1961) is an American politician who served as the 44th president of the United States from 2009 to 2017. A member of the Democratic Party, Obama was the first African-American president of the United States. He previously served as a U.S. senator from Illinois from 2005 to 2008 and as an Illinois state senator from 1997 to 2004, and previously worked as a civil rights lawyer before entering politics. Obama was born in Honolulu, Hawaii. After graduating from Columbia University in 1983, he worked as a community organizer in Chicago. In 1988, he enrolled in Harvard Law School, where he was the first black president of the ''Harvard Law Review''. After graduating, he became a civil rights attorney and an academic, teaching constitutional law at the University of Chicago Law School from 1992 to 2004. Turning to elective politics, he represented the 13th district in the Illinois Senate from 1997 until 2004, when he ran for the U. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Maryland College Of Computer, Mathematical, And Natural Sciences
The College of Computer, Mathematical, and Natural Sciences (CMNS) at the University of Maryland, College Park, is home to ten academic departments and a dozen interdisciplinary research centers and institutes. CMNS is one of 13 schools and colleges within the University of Maryland, College Park. In January 2015, CMNS had 339 tenure/tenure-track faculty members, 39,380 alumni, 4,912 undergraduate students and 1,424 graduate students. In October 2010, the University of Maryland's College of Chemical and Life Sciences and College of Computer, Mathematical, and Physical Sciences merged to form the College of Computer, Mathematical, and Natural Sciences. CMNS students receive national awards, including Rhodes, Truman, Goldwater, Fulbright and Hollings Scholarships; National Science Foundation Graduate Research Fellowships; and NASA Earth and Space Science Fellowships. In addition, undergraduate and graduate students conduct research in faculty research laboratories on campus or in t ... [...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 deve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supergravity
In theoretical physics, supergravity (supergravity theory; SUGRA for short) is a modern field theory that combines the principles of supersymmetry and general relativity; this is in contrast to non-gravitational supersymmetric theories such as the Minimal Supersymmetric Standard Model. Supergravity is the gauge theory of local supersymmetry. Since the supersymmetry (SUSY) generators form together with the Poincaré algebra a superalgebra, called the super-Poincaré algebra, supersymmetry as a gauge theory makes gravity arise in a natural way. Gravitons Like any field theory of gravity, a supergravity theory contains a spin-2 field whose quantum is the graviton. Supersymmetry requires the graviton field to have a superpartner. This field has spin 3/2 and its quantum is the gravitino. The number of gravitino fields is equal to the number of supersymmetries. History Gauge supersymmetry The first theory of local supersymmetry was proposed by Dick Arnowitt and Pran Nath i ... [...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 in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
