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LST (3)-class Tank Landing Ships
LST may refer to: Education * Licentiate of Sacred Theology * Liston College * London School of Theology Organizations * Law School Transparency * Linux Support Team, a defunct German Linux distributor (LST Linux, Power Linux) since 1993 * LST Software GmbH (from Linux System Technology), a German software company, successor of Linux Support Team and predecessor of Caldera Deutschland GmbH Places * Launceston Airport * Liverpool Street station, a major railway and tube station in London (station code LST) Science and technology * Land Surveyor in Training * Landing Ship, Tank, a type of ship designed to support amphibious operations * Laplace-Stieltjes transform, a transform similar to the Laplace transform * Large Space Telescope, the Hubble Space Telescope * Living Systems Theory * Log-space transducer, a type of Turing machine used for log-space reductions * Löwenheim–Skolem theorem, a theorem in first-order logic dealing with the cardinality of models * Lowstand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Licentiate Of Sacred Theology
Licentiate in Sacred Theology (; abbreviated LTh or STL) is the second of three ecclesiastical degrees in theology (the first being the Baccalaureate in Sacred Theology and the third being the Doctorate in Sacred Theology) which are conferred by a number of pontifical faculties around the world. The Licentiate degree comes with attendant canonical effects in the Catholic Church, specifically granting the holder the right to teach in Catholic seminaries and schools of theology. Description The program for a licentiate's degree is equivalent to a total of two years or four semesters of full-time study after receiving a university degree and the Bachelor of Sacred Theology degree TB(SapC 72b). The STB, or first cycle, requires five years or ten semesters (SapC 72a). "In this cycle the special disciplines are taught corresponding to the nature of the diverse specializations being undertaken. Also seminars and practical exercises are conducted for the acquisition of the abilit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hubble Space Telescope
The Hubble Space Telescope (HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. It was not the Orbiting Solar Observatory, first space telescope, but it is one of the largest and most versatile, renowned as a vital research tool and as a public relations boon for astronomy. The Hubble Space Telescope is named after astronomer Edwin Hubble and is one of NASA's Great Observatories program, Great Observatories. The Space Telescope Science Institute (STScI) selects Hubble's targets and processes the resulting data, while the Goddard Space Flight Center (GSFC) controls the spacecraft. Hubble features a mirror, and its five main instruments observe in the ultraviolet, visible spectrum, visible, and near-infrared regions of the electromagnetic spectrum. Hubble's orbit outside the distortion of atmosphere of Earth, Earth's atmosphere allows it to capture extremely high-resolution images with substantially lower background lig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standard Time
Standard time is the synchronization of clocks within a geographical region to a single time standard, rather than a local mean time standard. Generally, standard time agrees with the local mean time at some meridian that passes through the region, often near the centre of the region. Historically, standard time was established during the 19th century to aid weather forecasting and train travel. Applied globally in the 20th century, the geographical regions became time zones. The standard time in each time zone has come to be defined as an UTC offset, offset from Universal Time. A further offset is applied for part of the year in regions with daylight saving time. The adoption of standard time, because of the inseparable correspondence between longitude and time, solidified the concept of halving the globe into the Eastern Hemisphere and the Western Hemisphere, with one IERS Reference Meridian, Prime Meridian replacing the Prime meridian#History, various prime meridians that h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sidereal Time
Sidereal time ("sidereal" pronounced ) is a system of timekeeping used especially by astronomers. Using sidereal time and the celestial coordinate system, it is easy to locate the positions of celestial objects in the night sky. Sidereal time is a "time scale that is based on Earth's rate of rotation measured relative to the fixed stars". A sidereal day (also known as the sidereal rotation period) represents the time for one rotation about the planet axis relative to the stars. Viewed from the same location, a star seen at one position in the sky will be seen at the same position on another night at the same time of day (or night), if the day is defined as a sidereal day. This is similar to how the time kept by a sundial (Solar time) can be used to find the location of the Sun. Just as the Sun and Moon appear to rise in the east and set in the west due to the rotation of Earth, so do the stars. Both solar time and sidereal time make use of the regularity of Earth's rot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Least Slack Time Scheduling
Least slack time (LST) scheduling is an algorithm for dynamic priority scheduling. It assigns priorities to processes based on their ''slack time''. Slack time is the amount of time left after a job if the job was started now. This algorithm is also known as least laxity first. Its most common use is in embedded systems, especially those with multiple processors. It imposes the simple constraint that each process on each available processor possesses the same run time, and that individual processes do not have an affinity to a certain processor. This is what lends it a suitability to embedded systems. Slack time This scheduling algorithm first selects those processes that have the smallest "slack time". Slack time is defined as the temporal difference between the deadline, the ready time and the run time. More formally, the ''slack time'' s for a process is defined as: s = (d - t) -c' where d is the process deadline, t is the real time since the cycle start, and c' is the remain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lyddane–Sachs–Teller Relation
In condensed matter physics, the Lyddane–Sachs–Teller relation (or LST relation) determines the ratio of the natural frequency of longitudinal optic lattice vibrations (phonons) (\omega_\text) of an ionic crystal to the natural frequency of the transverse optical lattice vibration (\omega_\text) for long wavelengths (zero wavevector). The ratio is that of the static permittivity \varepsilon_ to the permittivity for frequencies in the visible range \varepsilon_. The relation holds for systems with a single optical branch, such as cubic systems with two different atoms per unit cell. For systems with many phonon branches, the relation does not necessarily hold, as the permittivity for any pair of longitudinal and transverse modes will be altered by the other modes in the system. The Lyddane–Sachs–Teller relation is named after the physicists R. H. Lyddane, Robert G. Sachs, and Edward Teller. Origin and limitations The Lyddane–Sachs–Teller relation applies to optical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sequence Stratigraphy
In mathematics, a sequence is an enumerated collection of mathematical object, objects in which repetitions are allowed and order theory, order matters. Like a Set (mathematics), set, it contains Element (mathematics), members (also called ''elements'', or ''terms''). The number of elements (possibly infinite number, infinite) is called the ''length'' of the sequence. Unlike a set, the same elements can appear multiple times at different positions in a sequence, and unlike a set, the order does matter. Formally, a sequence can be defined as a function (mathematics), function from natural numbers (the positions of elements in the sequence) to the elements at each position. The notion of a sequence can be generalized to an indexed family, defined as a function from an ''arbitrary'' index set. For example, (M, A, R, Y) is a sequence of letters with the letter "M" first and "Y" last. This sequence differs from (A, R, M, Y). Also, the sequence (1, 1, 2, 3, 5, 8), which contains the nu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Löwenheim–Skolem Theorem
In mathematical logic, the Löwenheim–Skolem theorem is a theorem on the existence and cardinality of models, named after Leopold Löwenheim and Thoralf Skolem. The precise formulation is given below. It implies that if a countable first-order theory has an infinite model, then for every infinite cardinal number ''κ'' it has a model of size ''κ'', and that no first-order theory with an infinite model can have a unique model up to isomorphism. As a consequence, first-order theories are unable to control the cardinality of their infinite models. The (downward) Löwenheim–Skolem theorem is one of the two key properties, along with the compactness theorem, that are used in Lindström's theorem to characterize first-order logic. In general, the Löwenheim–Skolem theorem does not hold in stronger logics such as second-order logic. Theorem In its general form, the Löwenheim–Skolem Theorem states that for every signature ''σ'', every infinite ''σ''-structure ''M'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Log-space Transducer
In computational complexity theory, a log-space reduction is a reduction computable by a deterministic Turing machine using logarithmic space. Conceptually, this means it can keep a constant number of pointers into the input, along with a logarithmic number of fixed-size integers. It is possible that such a machine may not have space to write down its own output, so the only requirement is that any given bit of the output be computable in log-space. Formally, this reduction is executed via a log-space transducer. Such a machine has polynomially-many configurations, so log-space reductions are also polynomial-time reductions. However, log-space reductions are probably weaker than polynomial-time reductions; while any non-empty, non-full language in P is polynomial-time reducible to any other non-empty, non-full language in P, a log-space reduction from an NL-complete language to a language in L, both of which would be languages in P, would imply the unlikely L = NL. It is an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living Systems Theory
Living systems are life forms (or, more colloquially known as living things) treated as a system. They are said to be open self-organizing and said to interact with their environment. These systems are maintained by flows of information, energy and matter. Multiple theories of living systems have been proposed. Such theories attempt to map general principles for how all living systems work. Context Some scientists have proposed in the last few decades that a general theory of living systems is required to explain the nature of life. Such a general theory would arise out of the ecological and biological sciences and attempt to map general principles for how all living systems work. Instead of examining phenomena by attempting to break things down into components, a general living systems theory explores phenomena in terms of dynamic patterns of the relationships of organisms with their environment. Theories Miller's open systems James Grier Miller's living systems theory ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liston College
Liston College is a school in Henderson, New Zealand, Henderson, Auckland, New Zealand, for year seven to 13 boys and offers a Roman Catholic, Catholic education to its students. It was the second List of Christian Brothers schools, school opened by the Congregation of Christian Brothers in New Zealand, Christian Brothers in Auckland. It was named after James Michael Liston, Archbishop Liston (1881–1976), the seventh Catholic Bishop of Auckland (1929–1970). The school was founded in 1974 to serve the Catholic families of West Auckland, New Zealand, West Auckland and to absorb the growing number of boys who travelled daily to St Peter's College, Auckland, St Peter's College in central Auckland.Graeme Donaldson, To All Parts of the Kingdom: Christian Brothers In New Zealand 1876–2001, Christian Brothers New Zealand Province, Christchurch, 2001, p. 17. History Beginnings Archbishop Liston of Auckland had, for some years, intended to establish a Catholic boys' school in Hender ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
