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ATR
ATR may refer to: Medicine * Acute transfusion reaction * Ataxia telangiectasia and Rad3 related, a protein involved in DNA damage repair Science and mathematics * Advanced Test Reactor, nuclear research reactor at the Idaho National Laboratory, US * Attenuated total reflectance in infrared spectroscopy * Advanced tongue root, a phonological feature in linguistics * Atractyloside, a toxin and inhibitor of "ADP/ATP translocase" * ATR0, an axiom system in reverse mathematics Technology * Answer to reset, a message output by a contact Smart Card * Automatic target recognition, recognition ability * Autothermal reforming, a natural gas reforming technology Transport * ATR (aircraft manufacturer) an Italian-French aircraft manufacturer ** ATR 42 airliner ** ATR 72 airliner * IATA code for Atar International Airport * Andaman Trunk Road * Air Transport Rack, standards for plug-in electronic modules in aviation and elsewhere; various suppliers e.g. ARINC * Atmore (Amtrak station), A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ATR 42
The ATR 42 is a regional airliner produced by Franco-Italian manufacturer ATR (aircraft manufacturer), ATR, with final assembly in Toulouse, France. On 4 November 1981, the aircraft was launched with ATR, as a joint venture between French Aérospatiale (now part of Airbus) and Aeritalia (now Leonardo S.p.A.). The ATR 42-300 performed its maiden flight on 16 August 1984 and type certification was granted during September 1985. Launch customer Air Littoral operated its first revenue-earning flight in December of that year. The high-wing airliner is powered by two turboprop engines, Pratt & Whitney Canada PW120s. The number "42" in its name is derived from the aircraft's original standard seating capacity of 42 passengers. Later variants are upgraded with new avionics, a glass cockpit, and newer engine versions. The ATR 42 is the basis for the stretched ATR 72, introduced in October 1989. Development During the 1960s and 1970s, European aircraft manufacturers had, for the mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Auxiliaries Of The United States Navy
This is a list of Auxiliary ship, auxiliaries of the United States Navy. It covers the various types of ships that support the frontline combat vessels of the United States Navy. Auxiliary ships which function as hospital ships and as oilers are to be found in their own articles: List of United States Navy hospital ships and List of United States Navy oilers. Escort carriers, amphibious warfare vessels, and some mine warfare vessels were also originally classed as auxiliaries but were later given their own hull classification symbols outside the auxiliary series (which all begin with an 'A'). Links to these and other list articles of similar ships can be found throughout this article. List of yard and district craft of the United States Navy, Yard and district craft also function as auxiliaries but generally are smaller and less capable than their ocean-going counterparts, and so they generally remain in harbors and coastal areas. Their hull classification symbols begin with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ATR 72
The ATR 72 is a twin-engine turboprop, short-haul regional airliner developed and produced in France and Italy by aircraft manufacturer ATR. The number "72" in its name is derived from the aircraft's typical standard seating capacity of 72 passengers. The ATR 72 has also been used as a corporate transport, cargo aircraft, and maritime patrol aircraft. To date, all of the ATR series have been completed at the company's final assembly line in Toulouse, France; ATR benefits from sharing resources and technology with Airbus SE, which has continued to hold a 50% interest in the company. Successive models of the ATR 72 have been developed. Typical updates have included new avionics, such as a glass cockpit, and the adoption of newer engine versions to deliver enhanced performance, such as increased efficiency and reliability and reductions in operating costs. The aircraft shares a high degree of commonality with the smaller ATR 42, which remains in production as of 2025. History ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ATR (aircraft Manufacturer)
ATR (, ) is a Franco- Italian aircraft manufacturer headquartered in Blagnac, France, a suburb of Toulouse. The company was founded in 1981 as a joint venture (known as an Economic Interest Group or GIE under French law) between Aérospatiale of France (now Airbus) and Aeritalia (now Leonardo) of Italy. Its main products are the ATR 42 and ATR 72 aircraft. ATR has sold more than 1,700 aircraft and has over 200 operators in more than 100 countries. Manufacturing Leonardo's manufacturing facilities in Pomigliano d'Arco, near Naples, Italy, produce the aircraft's fuselage and tail sections. Aircraft wings are assembled at Sogerma in Bordeaux in western France by Airbus France. Final assembly, flight-testing, certification and deliveries are the responsibility of ATR in Toulouse, France. History 1980s During the 1960s and 1970s, European aircraft manufacturers had, for the most part, undergone considerable corporate restructuring, including mergers and consolidations, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ataxia Telangiectasia And Rad3 Related
Serine/threonine-protein kinase ATR, also known as ataxia telangiectasia and Rad3-related protein (ATR) or FRAP-related protein 1 (FRP1), is an enzyme that, in humans, is encoded by the ''ATR'' gene. It is a large kinase of about 301.66 kDa. ATR belongs to the phosphatidylinositol 3-kinase-related kinase protein family. ATR is activated in response to single strand breaks, and works with ATM to ensure genome integrity. Function ATR is a serine/threonine-specific protein kinase that is involved in sensing DNA damage and activating the DNA damage checkpoint, leading to cell cycle arrest in eukaryotes. ATR is activated in response to persistent single-stranded DNA, which is a common intermediate formed during DNA damage detection and repair. Single-stranded DNA occurs at stalled replication forks and as an intermediate in DNA repair pathways such as nucleotide excision repair and homologous recombination repair. ATR is activated during more persistent issues with DNA damage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Answer To Reset
An Answer To Reset (ATR) is a message output by a contact Smart Card conforming to ISO/IEC 7816 standards, following electrical reset of the card's chip by a card reader. The ATR conveys information about the communication parameters proposed by the card, and the card's nature and state. By extension, ATR often refers to a message obtained from a Smart Card in an early communication stage; or from the card reader used to access that card, which may transform the card's message into an ATR-like format (this occurs e.g. for some PC/SC card readers when accessing an ISO/IEC 14443 Smart Card). The presence of an ATR is often used as a first indication that a Smart Card appears operative, and its content examined as a first test that it is of the appropriate kind for a given usage. Contact Smart Cards communicate over a signal named Input/Output (I/O) either ''synchronously'' (data bits are sent and received at the rhythm of one per period of the clock supplied to the card on its CLK ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atractyloside
Atractyloside (ATR) is a natural, toxic glycoside present in numerous plant species worldwide in the daisy family including '' Atractylis gummifera'' and '' Callilepis laureola'', and it's used for a variety of therapeutic, religious, and toxic purposes. Exposure to ATR via ingestion or physical contact is toxic and can be fatal for both humans and animals, especially by kidney and liver failure. ATR acts as an effective ADP/ATP translocase inhibitor which eventually halts ADP and ATP exchange and the cell dies due to lack of energy. Historically, atractyloside poisoning has been challenging to verify and quantify toxicologically, though recent literature has described such methods within acceptable standards of forensic science. Sources Atractyloside is found in numerous plant species in the daisy family e.g. '' Atractylis gummifera'', '' Callilepis laureola'', ''Xanthium strumarium'', '' Iphiona alsoeri'', '' Pascalia glauca'', '' Wedelia glauca'', and '' Iphiona aucheri'' a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Advanced Test Reactor
The Advanced Test Reactor (ATR) is a research reactor at the Idaho National Laboratory, located east of Arco, Idaho. This reactor was designed and is used to test nuclear fuels and materials to be used in power plants, naval propulsion, research and advanced reactors. It can operate at a maximum thermal power of 250 MW and has a "Four Leaf Clover" core design (similar to the Camunian rose) that allows for a variety of testing locations. The unique design allows for different neutron flux (number of neutrons impacting one square centimeter every second) conditions in various locations. Six of the test locations allow an experiment to be isolated from the primary cooling system, providing its own environment for temperature, pressure, flow and chemistry, replicating the physical environment while accelerating the nuclear conditions. The ATR is a pressurized light water reactor (LWR), using water as both coolant and moderator. The core is surrounded by a beryllium neutron reflec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Americans For Tax Reform
Americans for Tax Reform (ATR) is a politically conservative U.S. advocacy group whose stated goal is "a system in which taxes are simpler, flatter, more visible, and lower than they are today." According to ATR, "The government's power to control one's life derives from its power to tax. We believe that power should be minimized." The organization is known for its "Taxpayer Protection Pledge", which asks candidates for federal and state office to commit themselves in writing to oppose all tax increases. The founder and president of ATR is Grover Norquist, a conservative tax activist. Structure Americans for Tax Reform is a 501(c)(4) organization with 14 employees, finances of $3,912,958, and a membership of 60,000 (as of 2004). It was founded by Grover Norquist in 1985. The associated educational wing is the Americans for Tax Reform Foundation, which is classified as a 501(c)(3) research and educational organization. The purpose of both entities is to educate and/or lobby agai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Absent Teacher Reserve
Absent Teacher Reserve is a term referring to teachers who are no longer appointed to a specific school, but are reassigned to a school or number of schools within a school district or school system throughout the school year. It may also refer to assistant principals who are rotated from school to school in a similar fashion and there are also AGRs, a guidance counterpart. Causes of ATR status Job losses by ATR teachers are typically caused by the closing of poorly performing schools. Teachers who are "excessed" (laid off) due to school closings apply for jobs in other schools or land in a reserve pool if no school hires them. In addition, teachers removed for issues relating to job performance, or problematic issues, can wind up on ATR status (where it exists) due to a legal agreement, decision, or binding arbitration. According to The New Teacher Project, a national nonprofit that studied New York's ATR pool, 25 percent of teachers entered the pool because they faced disciplin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Advanced Tongue Root
In phonetics, advanced tongue root (ATR or +ATR), or expanded pharynx, and retracted tongue root (RTR or −ATR) are contrasting states of the pharynx during the pronunciation of vowels in some languages, especially in Western and Eastern Africa, but also in Kazakh and Mongolian. ATR vs RTR was once suggested to be the basis for the distinction between tense and lax vowels in European languages such as German, but Ladefoged and Maddieson have found that the tongue root position in Germanic languages is not an independent gesture. Advanced tongue root Advanced tongue root, abbreviated ATR or +ATR, also called expanded, involves the expansion of the pharyngeal cavity by moving the base of the tongue forward, lowering the larynx, and otherwise expanding the walls of the pharynx during the pronunciation of a vowel. This may result in +ATR vowels being longer than −ATR vowels. The lowering of the larynx sometimes adds a breathy quality to the vowel. Voiced stops such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
All Terrain Racing
''ATR: All Terrain Racing'' is a racing game published by Team17 for Amiga and Amiga CD32 on May 8, 1995. During a protracted dispute between Team17 and ''Amiga Power ''Amiga Power'' (''AP'') was a monthly magazine about Amiga video games. It was published in the United Kingdom by Future Publishing and ran for 65 issues, from May 1991 to September 1996. History The first issue of ''Amiga Power'' was publi ...'', the magazine's reviewer, Jonathan Nash, awarded ''ATR: All Terrain Racing'' a rating of 38%, prompting the developer to pursue a lawsuit for defamation. Gameplay ATR: All Terrain Racing is a top-down racer. Gameplay featured three game modes across 6 different types of tracks and 3 vehicle styles. The majority of tracks in ATR were designed with long and short routes offering navigational strategy options. Tracks also contain environmental hazards the player has to avoid, such as oil slicks and small jumps as well as pick-ups such as turbos. Tracks have turns t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
