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X 0
X0 may refer to: * SpaceShipOne flight 15P, the 2004 first privately funded human spaceflight * X/0, a notation for the division by zero * Turner syndrome, a disorder in which all or part of an X chromosome is absent * X0 sex-determination system, as found in some insects ** X0, heterogametic male designation under this system * X0, a smaller rigged version of an X1 (dinghy) * X0, running number for N700 Series Shinkansen prototype from 2014 to 2021 * X0, zero-level projection or head in linguistics See also * XO (other) Xo or XO may refer to: Food and drink * XO sauce, a spicy seafood sauce * XO, a grade of cognac, meaning "extra old" Music * XO (record label), a record label founded by artist the Weeknd * "XO / The Host", a song by the Weeknd from his third mi ... * X00, a popular DOS-based FOSSIL driver which was commonly used in the mid 1980s to the late 1990s {{Letter-Number Combination Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SpaceShipOne Flight 15P
Flight 15P of Scaled Composites SpaceShipOne, SpaceShipOne (X0) was the first privately funded human spaceflight. It took place on June 21, 2004. It was the fourth powered test flight of the Scaled Composites Tier One, Tier One program, the previous three test flights having reached much lower altitudes. The flight carried only its Pilot (spaceflight), pilot, Mike Melvill, who thus became the first non-governmental astronaut. This flight was a full-altitude test, but not itself a competitive flight for the Ansari X Prize, the prize for the first non-governmental reusable crewed spacecraft. Problems were encountered during the flight, but later corrected, paving the way for SpaceShipOne to make competitive flights later in 2004. Crew Flight profile All times are in Pacific Daylight Time, PDT, which is seven hours behind UTC. This was the local civil time at the spaceport on the day of the flight. All measurements are first stated in the United States customary units, U.S. custo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turner Syndrome
Turner syndrome (TS), also known as 45,X, or 45,X0, is a genetic condition in which a female is partially or completely missing an X chromosome. Signs and symptoms vary among those affected. Often, a short and webbed neck, low-set ears, low hairline at the back of the neck, short stature, and swollen hands and feet are seen at birth. Typically, those affected do not develop menstrual periods, or breasts without hormone treatment and are unable to have children without reproductive technology. Heart defects, diabetes, and low thyroid hormone occur in the disorder more frequently than average. Most people with Turner syndrome have normal intelligence; however, many have problems with spatial visualization that may be needed in order to learn mathematics. Vision and hearing problems also occur more often than average. Turner syndrome is not usually inherited; rather, it occurs during formation of the reproductive cells in a parent or in early cell division during development. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X0 Sex-determination System
The XO sex-determination system (sometimes X0 sex-determination system) is a system that some species of insects, arachnids, and mammals use to determine the sex of offspring. In this system, there is only one sex chromosome, referred to as X. Males only have one X chromosome (XO), while females have two (XX). The letter O (sometimes a zero) signifies the lack of a second X. Maternal gametes always contain an X chromosome, so the sex of the animals' offspring depends on whether a sex chromosome is present in the male gamete. Its sperm normally contains either one X chromosome or no sex chromosomes at all. This system determines the sex of offspring among: * Most arachnidsBull, James J.; ''Evolution of sex determining mechanisms''; p. 17 with the exception of mites where a small majority are haplodiploid, * Almost all apterygote and Paleopteran insects (e.g., dragonflies, silverfish) * Most exopterygote insects (e.g., grasshoppers, crickets, cockroaches) * Some nematodes, crus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X1 (dinghy)
The X1 is a fast, light-weight sailing dinghy designed for sailing on rivers, estuaries and inland waters by Phil Morrison (yachts), Phil Morrison. The dinghy is sailed by 2 or 3 people and has a mainsail, main, a jib and a Spinnaker#Symmetric, symmetric_spinnaker. The boat is designed to be easily driven in very light wind, easy to sail and rig and quick to tack. It has a PY of 949.. Currently the PY is the same as an RS400 but can perform better in light wind and slower in heavier winds. The X0 is a variant of the original X1 with the same hull etc. but a smaller rig. The mast and three sails are different and can easily be substituted. This version is intended for beginners or lighter weight crew. Differences in specification: Mast height: , Sail area - Main and Jib: , Sail area - Spinnaker: . Race results include 3rd and 4th in the 2013 Three Rivers Race on the Norfolk Broads, 1st in Rheinwoche and Letzte Helden 2012 - Hamburg. The X1 was boat tested by Yachts & Yachting a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
N700 Series Shinkansen
The is a Japanese Shinkansen high-speed train with tilting capability developed jointly by JR Central and JR West for use on the Tokaido and San'yō Shinkansen lines since 2007, and also operated by JR Kyushu on the Kyushu Shinkansen line. N700 series trains have a maximum speed of , and tilting of up to one degree allows the trains to maintain even on radius curves that previously had a maximum speed of . Another feature of the N700 is that it accelerates more quickly than the older 700 series Shinkansen trains, with a maximum acceleration rate of 2.6 km/h/s (0.72 m/s2). This enables it to reach in only three minutes. Further advancements led to the development of the N700A, an incremental evolution of the N700. N700A trains can reach 285 km/h on 3,000 m curves, allowing the maximum operating speed on the Tōkaidō Shinkansen to be raised to 285 km/h. All N700 series sets have been retrofitted with most of the improvements added to the N700A series, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zero-level Projection
In linguistics, X-bar theory is a model of phrase-structure grammar and a theory of syntactic category formation that was first proposed by Noam Chomsky in 1970Chomsky, Noam (1970). Remarks on Nominalization. In: R. Jacobs and P. Rosenbaum (eds.) ''Reading in English Transformational Grammar'', 184–221. Waltham: Ginn. and further developed by Ray Jackendoff (1974, 1977a, 1977bJackendoff, Ray (1977b) Constraints on Phrase Structure Rules, in P. W. Culicover, T. Wasow & A. Akmajian (eds.), ''Formal Syntax'', Academic Press, New York, pp. 249–83.), along the lines of the theory of generative grammar put forth in the 1950s by Chomsky. It attempts to capture the structure of phrasal categories with a single uniform structure called the X-bar schema, basing itself on the assumption that any phrase in natural language is an XP (X phrase) that is headed by a given syntactic category X. It played a significant role in resolving issues that phrase structure rules had, representative of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Head (linguistics)
In linguistics, the head or nucleus of a phrase is the word that determines the syntactic category of that phrase. For example, the head of the noun phrase ''boiling hot water'' is the noun ''water''. Analogously, the head of a compound is the stem that determines the semantic category of that compound. For example, the head of the compound noun ''handbag'' is ''bag'', since a handbag is a bag, not a hand. The other elements of the phrase or compound modify the head, and are therefore the head's ''dependents''. Headed phrases and compounds are called ''endocentric'', whereas ''exocentric'' ("headless") phrases and compounds (if they exist) lack a clear head. Heads are crucial to establishing the direction of branching. Head-initial phrases are right-branching, head-final phrases are left-branching, and head-medial phrases combine left- and right-branching. Basic examples Examine the following expressions: :::big red dog :::birdsong The word ''dog'' is the head of ''big red dog' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
XO (other)
Xo or XO may refer to: Food and drink * XO sauce, a spicy seafood sauce * XO, a grade of cognac, meaning "extra old" Music * XO (record label), a record label founded by artist the Weeknd * "XO / The Host", a song by the Weeknd from his third mixtape Echoes of Silence * ''XO'' (Elliott Smith album) (1998) * ''XO'' (Leathermouth album) (2009) * "XO" (song), a 2013 song by Beyoncé * "XO", a song by The Eden Project * "XO", a song by girl group Citizen Queen (2022) * "XO", a song by Fall Out Boy from ''From Under the Cork Tree'' * "XO", a 2010 song by Mike Posner from ''31 Minutes to Takeoff'' * "X.O.", a song by Luniz from the 1996 film soundtrack ''Original Gangstas'' Science and technology * XO Telescope or its exo-planet survey * OLPC XO, a laptop produced by the One Laptop per Child association * XO sex determination system, a chromosomal system used to designate sex of some species of insects, arachnids, and mammals ** XO, heterogametic male designation under this system ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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