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Alpha-beta Unsaturated Acid
Alphabeta is an Israeli musical group. Alphabeta or Alpha Beta may also refer to: *The Greek alphabet, from ''Alpha'' (Αα) and ''Beta'' (Ββ), the first two letters *Alpha Beta, a former chain of Californian supermarkets *Alpha and beta anomers (chemistry) *Alpha–beta pruning, a type of search algorithm *Alpha-beta transformation, a mathematical transformation in electrical engineering *Alpha-beta unsaturated carbonyl compounds, a class of organic compounds *Alpha beta filter, a predictive filter *Alpha (finance) and Beta (finance), two measures characterizing the return of an investment portfolio *The Alpha Betas, a fraternity in the ''Revenge of the Nerds'' film series *''Alpha Betas,'' an animated webseries created by Chris Bruno and David Howard Lee starring Evan Fong Evan Fong (born 31 May 1992), known online as VanossGaming (or simply Vanoss), is a Canadian internet personality, video game commentator, music producer, and DJ. He posts montage-style videos on YouTube ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alphabeta
Alphabeta were a group of Israeli singers who won the Eurovision Song Contest in 1978 with Izhar Cohen. The singers were Reuven Erez, Lisa Gold-Rubin, Nehama Shutan, Esther Tzuberi, and Itzhak Okev. The winning song was ''A-Ba-Ni-Bi''. Israel received five consecutive maximum 12 points during the voting, a Eurovision Song Contest record. The total score for the song was 157 points. When it became clear that Israel was going to win the contest, Jordan stopped its live broadcast on the pretext of technical difficulties. The viewing public was shown a picture of daffodils. A day later, Jordan presented the song from Belgium, which came in second, as the winning song. This victory entitled Israel to host the contest in Jerusalem in 1979. The head of the Israeli delegation, Rivka Michaeli, said that Cohen's song was sent to the contest because the other entries in the Israeli national competition were so bad. Nevertheless, Izhar Cohen was said to be confident that he would win. S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greek Alphabet
The Greek alphabet has been used to write the Greek language since the late 9th or early 8th century BCE. It is derived from the earlier Phoenician alphabet, and was the earliest known alphabetic script to have distinct letters for vowels as well as consonants. In Archaic Greece, Archaic and early Classical Greece, Classical times, the Greek alphabet existed in Archaic Greek alphabets, many local variants, but, by the end of the 4th century BCE, the Euclidean alphabet, with 24 letters, ordered from alpha to omega, had become standard and it is this version that is still used for Greek writing today. The letter case, uppercase and lowercase forms of the 24 letters are: : , , , , , , , , , , , , , , , , , /ς, , , , , , . The Greek alphabet is the ancestor of the Latin script, Latin and Cyrillic scripts. Like Latin and Cyrillic, Greek originally had only a single form of each letter; it developed the letter case distinction between uppercase and lowercase in parallel with Latin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alpha Beta
Alpha Beta was a chain of supermarkets in the Southwestern United States. Stores under this brand existed between 1917 and 1995. Former Alpha Beta stores have all been purchased by other grocery chains and rebranded. History Before Alpha Beta was the name of a store, it was the name of a marketing concept used in grocery stores founded by Albert and Hugh Gerrard. It referred to organizing the groceries in the store in alphabetical order. The Gerrards applied this idea to their flagship grocery store, Triangle Grocerteria, in 1915. Then in 1917, they opened the first Alpha Beta store in Pomona, in eastern Los Angeles County, California. The company also launched a series of coffee shops named Alphy's (a knockoff of the more formal Alpha Beta name) with dozens around southern California. They were eventually sold; many became Denny's. The company was bought by American Stores in 1961. Skaggs Drug Centers bought American Stores in 1979 and assumed the American Stores name. Comb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anomer
In carbohydrate chemistry, a pair of anomers () is a pair of near-identical stereoisomers that differ at only the anomeric carbon, the carbon that bears the aldehyde or ketone functional group in the sugar's open-chain form. However, in order for anomers to exist, the sugar must be in its cyclic form, since in open-chain form, the anomeric carbon is planar and thus achiral. More formally stated, then, an anomer is an epimer at the hemiacetal/hemiketal carbon in a cyclic saccharide. Anomerization is the process of conversion of one anomer to the other. As is typical for stereoisomeric compounds, different anomers have different physical properties, melting points and specific rotations. Nomenclature Two anomers are designated alpha (α) or beta (β), according to the configurational relationship between the ''anomeric centre'' and the ''anomeric reference atom'', hence they are relative stereodescriptors. The anomeric centre in hemiacetals is the anomeric carbon C-1; in hemi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alpha–beta Pruning
Alpha–beta pruning is a search algorithm that seeks to decrease the number of nodes that are evaluated by the minimax algorithm in its search tree. It is an adversarial search algorithm used commonly for machine playing of two-player games (Tic-tac-toe, Chess, Connect 4, etc.). It stops evaluating a move when at least one possibility has been found that proves the move to be worse than a previously examined move. Such moves need not be evaluated further. When applied to a standard minimax tree, it returns the same move as minimax would, but prunes away branches that cannot possibly influence the final decision. History Allen Newell and Herbert A. Simon who used what John McCarthy calls an "approximation" in 1958 wrote that alpha–beta "appears to have been reinvented a number of times". Arthur Samuel had an early version for a checkers simulation. Richards, Timothy Hart, Michael Levin and/or Daniel Edwards also invented alpha–beta independently in the United States. McC ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alpha-beta Transformation
Alphabeta is an Israeli musical group. Alphabeta or Alpha Beta may also refer to: *The Greek alphabet, from ''Alpha'' (Αα) and ''Beta'' (Ββ), the first two letters *Alpha Beta, a former chain of Californian supermarkets *Alpha and beta anomers (chemistry) *Alpha–beta pruning, a type of search algorithm *Alpha-beta transformation, a mathematical transformation in electrical engineering *Alpha-beta unsaturated carbonyl compounds, a class of organic compounds *Alpha beta filter, a predictive filter *Alpha (finance) and Beta (finance), two measures characterizing the return of an investment portfolio *The Alpha Betas, a fraternity in the ''Revenge of the Nerds'' film series *''Alpha Betas,'' an animated webseries created by Chris Bruno and David Howard Lee starring Evan Fong Evan Fong (born 31 May 1992), known online as VanossGaming (or simply Vanoss), is a Canadian internet personality, video game commentator, music producer, and DJ. He posts montage-style videos on YouTube o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alpha-beta Unsaturated Carbonyl Compounds
Alphabeta is an Israeli musical group. Alphabeta or Alpha Beta may also refer to: *The Greek alphabet, from ''Alpha'' (Αα) and ''Beta'' (Ββ), the first two letters *Alpha Beta, a former chain of Californian supermarkets *Alpha and beta anomers (chemistry) *Alpha–beta pruning, a type of search algorithm *Alpha-beta transformation, a mathematical transformation in electrical engineering *Alpha-beta unsaturated carbonyl compounds, a class of organic compounds *Alpha beta filter, a predictive filter *Alpha (finance) and Beta (finance), two measures characterizing the return of an investment portfolio *The Alpha Betas, a fraternity in the ''Revenge of the Nerds ''Revenge of the Nerds'' is a 1984 American comedy film directed by Jeff Kanew and starring Robert Carradine, Anthony Edwards, Ted McGinley, and Bernie Casey. The film's plot chronicles a group of nerds at the fictional Adams College trying ...'' film series *''Alpha Betas,'' an animated webseries created by Chris B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alpha Beta Filter
An alpha beta filter (also called alpha-beta filter, f-g filter or g-h filterEli Brookner: Tracking and Kalman Filtering Made Easy. Wiley-Interscience, 1st edition, 4 1998.) is a simplified form of observer for estimation, data smoothing and control applications. It is closely related to Kalman filters and to linear state observers used in control theory. Its principal advantage is that it does not require a detailed system model. Filter equations An alpha beta filter presumes that a system is adequately approximated by a model having two internal states, where the first state is obtained by integrating the value of the second state over time. Measured system output values correspond to observations of the first model state, plus disturbances. This very low order approximation is adequate for many simple systems, for example, mechanical systems where position is obtained as the time integral of velocity. Based on a mechanical system analogy, the two states can be called ''position x ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alpha (finance)
Alpha is a measure of the active return on an investment, the performance of that investment compared with a suitable market index. An alpha of 1% means the investment's return on investment over a selected period of time was 1% better than the market during that same period; a negative alpha means the investment underperformed the market. Alpha, along with beta, is one of two key coefficients in the capital asset pricing model used in modern portfolio theory and is closely related to other important quantities such as standard deviation, R-squared and the Sharpe ratio. In modern financial markets, where index funds are widely available for purchase, alpha is commonly used to judge the performance of mutual funds and similar investments. As these funds include various fees normally expressed in percent terms, the fund has to maintain an alpha greater than its fees in order to provide positive gains compared with an index fund. Historically, the vast majority of traditional funds h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beta (finance)
In finance, the beta (β or market beta or beta coefficient) is a measure of how an individual asset moves (on average) when the overall stock market increases or decreases. Thus, beta is a useful measure of the contribution of an individual asset to the risk of the market portfolio when it is added in small quantity. Thus, beta is referred to as an asset's non-diversifiable risk, its systematic risk, market risk, or hedge ratio. Beta is ''not'' a measure of idiosyncratic risk. Interpretation of values By definition, the value-weighted average of all market-betas of all investable assets with respect to the value-weighted market index is 1. If an asset has a beta above (below) 1, it indicates that its return moves more (less) than 1-to-1 with the return of the market-portfolio, on average. In practice, few stocks have negative betas (tending to go up when the market goes down). Most stocks have betas between 0 and 3. Treasury bills (like most fixed income instruments) a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Revenge Of The Nerds
''Revenge of the Nerds'' is a 1984 American comedy film directed by Jeff Kanew and starring Robert Carradine, Anthony Edwards, Ted McGinley, and Bernie Casey. The film's plot chronicles a group of nerds at the fictional Adams College trying to stop the ongoing harassment by the jock fraternity, the Alpha Betas, in addition to the latter's sister sorority, Pi Delta Pi. Plot Best friends and nerds Lewis Skolnick and Gilbert Lowe enroll in Adams College to study computer science. The Alpha Betas, a fraternity that includes most of the Adams football team, carelessly burn down their own house and, urged by Coach Harris, take over the freshman dorms, literally throwing the freshmen out into the street. Dean Ulich designates temporary living space in the gymnasium and allows the freshmen to rush the fraternities. Lewis, Gilbert, and several other nerds fail to join fraternities, but are able to secure a dilapidated house near campus and repair it as a residence. The Alpha Betas, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Evan Fong
Evan Fong (born 31 May 1992), known online as VanossGaming (or simply Vanoss), is a Canadian internet personality, video game commentator, music producer, and DJ. He posts montage-style videos on YouTube of him and other creators playing various video games, such as ''Grand Theft Auto V'' and ''Garry's Mod''. Aside from this, he produces music and performs as a DJ under the name Rynx, and served as a creative director for the video game ''Dead Realm'', and as a voice actor for the YouTube Premium series ''Paranormal Action Squad'' and the animated series ''Alpha Betas''. Biography Fong was born on 31 May 1992 and raised in Toronto, Ontario. Fong is of Asian descent, his mother being Korean, and father Chinese. Fong graduated from Richmond Hill High School and studied economics in college, but he later dropped out in his second year to focus on his YouTube channel as a full-time commitment. Fong claimed that his parents were initially concerned that he was neglecting his stud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
