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Parity Automaton
Parity may refer to: * Parity (computing) ** Parity bit in computing, sets the parity of data for the purpose of error detection ** Parity flag in computing, indicates if the number of set bits is odd or even in the binary representation of the result of the last operation ** Parity file in data processing, created in conjunction with data files and used to check data integrity and assist in data recovery * Parity (mathematics), indicates whether a number is even or odd ** Parity of a permutation, indicates whether a permutation has an even or odd number of inversions ** Parity function, a Boolean function whose value is 1 if the input vector has an odd number of ones ** Parity learning, a problem in machine learning ** Parity of even and odd functions * Parity (physics), a symmetry property of physical quantities or processes under spatial inversion * Parity (biology), the number of times a female has given birth; gravidity and parity represent pregnancy and viability, respectivel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parity Bit
A parity bit, or check bit, is a bit added to a string of binary code. Parity bits are a simple form of error detecting code. Parity bits are generally applied to the smallest units of a communication protocol, typically 8-bit octets (bytes), although they can also be applied separately to an entire message string of bits. The parity bit ensures that the total number of 1-bits in the string is even or odd. Accordingly, there are two variants of parity bits: even parity bit and odd parity bit. In the case of even parity, for a given set of bits, the bits whose value is 1 are counted. If that count is odd, the parity bit value is set to 1, making the total count of occurrences of 1s in the whole set (including the parity bit) an even number. If the count of 1s in a given set of bits is already even, the parity bit's value is 0. In the case of odd parity, the coding is reversed. For a given set of bits, if the count of bits with a value of 1 is even, the parity bit value is se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mental Health Parity Act
The Mental Health Parity Act (MHPA) is legislation signed into United States law on September 26, 1996 that requires annual or lifetime dollar limits on mental health benefits to be no lower than any such dollar limits for medical and surgical benefits offered by a group health plan or health insurance issuer offering coverage in connection with a group health plan. Prior to MHPA and similar legislation, insurers were not required to cover mental health care and so access to treatment was limited, underscoring the importance of the act. The MHPA was largely superseded by the Paul Wellstone and Pete Domenici Mental Health Parity and Addiction Equity Act (MHPAEA), which the 110th United States Congress passed as rider legislation on the Troubled Asset Relief Program (TARP) in Public Law 110-343, signed into law by President George W. Bush in October 2008. Notably, the 2010 Patient Protection and Affordable Care Act extended the reach of MHPAEA provisions to many health insurance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Missile Gap
In the United States, during the Cold War, the missile gap was the perceived superiority of the number and power of the USSR's missiles in comparison with those of the U.S. (a lack of military parity). The gap in the ballistic missile arsenals did not exist except in exaggerated estimates, made by the Gaither Committee in 1957 and in United States Air Force (USAF) figures. Even the contradictory CIA figures for the USSR's weaponry, which showed a clear advantage for the US, were far above the actual count. Like the bomber gap of only a few years earlier, it was soon demonstrated that the gap was entirely fictional. John F. Kennedy is credited with inventing the term in 1958 as part of the ongoing election campaign in which a primary plank of his rhetoric was that the Eisenhower administration was weak on defense. It was later learned that Kennedy was apprised of the actual situation during the campaign, which has led scholars to question what Kennedy knew and when he knew it. Ther ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doctrine Of Parity
The doctrine of parity was used to justify agricultural price controls in the United States beginning in the 1920s. It was the belief that farming should be as profitable as it was between 1909 and 1914, an era of high food prices and farm prosperity. The doctrine sought to restore the "terms of trade" enjoyed by farmers in those years. It was highly controversial, since critics argued it ignored changes in agricultural productivity and set an artificial standard. The doctrine developed in the 1920s as food prices declined after the First World War. The first attempt at instituting the parity doctrine was the McNary-Haugen Bill, vetoed by President Calvin Coolidge in 1928. Farming prices decreased further during the Great Depression, leading to parity-seeking New Deal era legislation, such as the Agricultural Adjustment Act of 1933. Political pressure to enforce parity declined after the 1940s and 1950s as commodity prices rose. However, New Deal programs remained in place, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grid Parity
Grid parity (or socket parity) occurs when an alternative energy source can generate power at a levelized cost of electricity (LCOE) that is less than or equal to the price of power from the electricity grid. The term is most commonly used when discussing renewable energy sources, notably solar power and wind power. Grid parity depends upon whether you are calculating from the point of view of a utility or of a retail consumer. Reaching grid parity is considered to be the point at which an energy source becomes a contender for widespread development without subsidies or government support. It is widely believed that a wholesale shift in generation to these forms of energy will take place when they reach grid parity. Germany was one of the first countries to reach parity for solar PV in 2011 and 2012 for utility-scale solar and rooftop solar PV, respectively. By January 2014, grid parity for solar PV systems had already been reached in at least nineteen countries. Wind power ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reversi
Reversi is a strategy board game for two players, played on an 8×8 uncheckered board. It was invented in 1883. Othello, a variant with a fixed initial setup of the board, was patented in 1971. Basics There are sixty-four identical game pieces called ''disks'', which are light on one side and dark on the other. Players take turns placing disks on the board with their assigned color facing up. During a play, any disks of the opponent's color that are in a straight line and bounded by the disk just placed and another disk of the current player's color are turned over to the current player's color. The objective of the game is to have the majority of disks turned to display one's color when the last playable empty square is filled. History Original version Englishmen Lewis Waterman and John W. Mollett both claim to have invented the game of Reversi in 1883, each denouncing the other as a fraud. The game gained considerable popularity in England at the end of the 19th century ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potty Parity
Potty parity is equal or equitable provision of public toilet facilities for females and males within a public space. Definition of parity Parity may be defined in various ways in relation to facilities in a building. The simplest is as equal floorspace for male and female washrooms. Since men's and boys' bathrooms include urinals, which take up less space than stalls, this still results in more facilities for males. An alternative parity is by number of fixtures within washrooms. However, since females on average spend more time in washrooms more males are able to use more facilities per unit time. More recent parity regulations therefore require more fixtures for females to ensure that the average time spent waiting to use the toilet is the same for females as for males, or to equalise throughputs of male and female toilets. Sex differences Women and girls often spend more time in washrooms than men and boys, for both physiological and cultural reasons. The requirement to use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parity (sports)
In sports, parity is when participating teams have roughly equivalent levels of talent. In such a league, the "best" team is not significantly better than the "worst" team. This leads to more competitive contests where the winner cannot be easily predicted. The opposite condition, which could be considered "disparity" between teams, is a condition where the elite teams are so much more talented that the lesser teams are hopelessly outmatched. Different major governing organizations attempt to achieve financial and/or competitive parity in different ways. For example, the National Football League (NFL) in the U.S. has established the shared revenue plan, in which all teams equally benefit from television revenue and sales of NFL franchised goods. All of the major leagues of North America use a draft system to ensure that the best prospects are allocated to the teams most in need of them. In much of the world outside North America, parity is enforced through promotion and relegation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Put–call Parity
In financial mathematics, put–call parity defines a relationship between the price of a European call option and European put option, both with the identical strike price and expiry, namely that a portfolio of a long call option and a short put option is equivalent to (and hence has the same value as) a single forward contract at this strike price and expiry. This is because if the price at expiry is above the strike price, the call will be exercised, while if it is below, the put will be exercised, and thus in either case one unit of the asset will be purchased for the strike price, exactly as in a forward contract. The validity of this relationship requires that certain assumptions be satisfied; these are specified and the relationship is derived below. In practice transaction costs and financing costs (leverage) mean this relationship will not exactly hold, but in liquid markets the relationship is close to exact. Assumptions Put–call parity is a static replication, and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interest Rate Parity
Interest rate parity is a no-arbitrage condition representing an equilibrium state under which investors interest rates available on bank deposits in two countries. The fact that this condition does not always hold allows for potential opportunities to earn riskless profits from covered interest arbitrage. Two assumptions central to interest rate parity are capital mobility and perfect substitutability of domestic and foreign assets. Given foreign exchange market equilibrium, the interest rate parity condition implies that the expected return on domestic assets will equal the exchange rate-adjusted expected return on foreign currency assets. Investors then cannot earn arbitrage profits by borrowing in a country with a lower interest rate, exchanging for foreign currency, and investing in a foreign country with a higher interest rate, due to gains or losses from exchanging back to their domestic currency at maturity. Interest rate parity takes on two distinctive forms: ''uncovered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Purchasing Power Parity
Purchasing power parity (PPP) is the measurement of prices in different countries that uses the prices of specific goods to compare the absolute purchasing power of the countries' currency, currencies. PPP is effectively the ratio of the price of a basket of goods at one location divided by the price of the basket of goods at a different location. The PPP inflation and exchange rate may differ from the Exchange rate, market exchange rate because of tariffs, and other transaction costs. The Purchasing Power Parity indicator can be used to compare economies regarding their Gross Domestic Product, labour productivity and actual individual consumption, and in some cases to analyse price convergence and to compare the cost of living between places. The calculation of the PPP, according to the OECD, is made through a ''basket of goods'' that contains a "final product list [that] covers around 3,000 consumer goods and services, 30 occupations in government, 200 types of equipment goods a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parity (law)
Principle of parity is a legal concept used in codecision procedure that disables one European European, or Europeans, or Europeneans, may refer to: In general * ''European'', an adjective referring to something of, from, or related to Europe ** Ethnic groups in Europe ** Demographics of Europe ** European cuisine, the cuisines of Europe ... institution from making decisions without obtaining assent from any other institutions engaged in the procedure. External links European Commission - Codecision procedure Legal concepts {{EU-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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