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Inappropriate Sinus Tachycardia
Inappropriate sinus tachycardia is a rare type of cardiac arrhythmia within the category of supraventricular tachycardia (SVT). IST may be caused by the sinus node itself having an abnormal structure or function, or it may be part of a problem called dysautonomia, a disturbance and/or failure of the autonomic nervous system. Research into the mechanism and etiology (cause) of inappropriate sinus tachycardia is ongoing. IST is viewed by most to be a benign condition in the long-term. Symptoms of IST, however, may be distracting and warrant treatment. The heart is a strong muscle and typically can sustain the higher-than-normal heart rhythm, though monitoring the condition is generally recommended.[1] The mechanism and primary etiology of inappropriate sinus tachycardia has not been fully elucidated
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International School Of Tanganyika
The International School of Tanganyika (IST), founded in 1963, is an international school in Dar es Salaam, Tanzania. The school is an IB World School[1] that hosts the Primary Years, Middle Years, and Diploma programmes. IST operates on two campuses in desirable suburbs of Dar es Salaam, Tanzania. IST Elementary serves children from age 3 to Grade 5 while IST Secondary, 5 kilometers away, serves Grades 6 – 12. IST is fully accredited by the Council of International Schools (CIS) and the Middle States Association (MSA). IST is a diverse international school currently serving about 1000 students from across the globe - 22% of the students are Tanzanians, 15% American, 10% British, 8% Indian, and the remainder from approximately 60 other nationalities. The Elementary Campus offers programmes for students from age 3 to Grade 5 and the Secondary Campus offers programmes from Grade 6 to 12
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Inverse Scattering Transform
In mathematics, the inverse scattering transform is a method for solving some non-linear partial differential equations. It is one of the most important developments in mathematical physics in the past 40 years[citation needed]. The method is a non-linear analogue, and in some sense generalization, of the Fourier transform, which itself is applied to solve many linear partial differential equations. The name "inverse scattering method" comes from the key idea of recovering the time evolution of a potential from the time evolution of its scattering data: inverse scattering refers to the problem of recovering a potential from its scattering matrix, as opposed to the direct scattering problem of finding the scattering matrix from the potential. The inverse scattering transform may be applied to many of the so-called exactly solvable models, that is to say completely integrable infinite dimensional systems
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Internal Set Theory
Internal set theory (IST) is a mathematical theory of sets developed by Edward Nelson that provides an axiomatic basis for a portion of the nonstandard analysis introduced by Abraham Robinson. Instead of adding new elements to the real numbers, Nelson's approach modifies the axiomatic foundations through syntactic enrichment. Thus, the axioms introduce a new term, "standard", which can be used to make discriminations not possible under the conventional axioms for sets. Thus, IST is an enrichment of ZFC: all axioms of ZFC are satisfied for all classical predicates, while the new unary predicate "standard" satisfies three additional axioms I, S, and T
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Irish Standard Time

In Ireland, the Standard Time Act 1968 legally established that the time for general purposes in the State (to be known as standard time) shall be one hour in advance of Greenwich mean time throughout the year.[2] This act was amended by the Standard Time (Amendment) Act 1971, which legally established Greenwich Mean Time as a winter time period.[1] Ireland therefore operates one hour behind standard time during the winter period, and reverts to standard time in the summer months. This is defined in contrast to the other states in the European Union, which operate one hour ahead of standard time during the summer period, but produces the same end result. The instant of transition to and from daylight saving time is synchronised across Europe
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Institute Of Space Technology
The Institute of Space Technology (also known as IST) is a public university located in Islamabad, Pakistan under the administration of Space and Upper Atmosphere Research Commission. It is focused on the study of astronomy, aerospace engineering and astronautics. [2] Established in 2002 under the auspices of the Pakistan National Space Agency. IST offers a wide array of undergraduate and graduate degrees in partnership of Beihang University and University of Surrey.[2] Since 2008, IST has an ISO certified management standard
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