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List of programs broadcast by Seven Network
21 Jump Street (originally aired on Nine Network) 24 77 Sunset Strip The Adventures of Sherlock Holmes The Adventures of the Black Stallion The Adventures of William Tell Against the Wall Agent Carter (2016) Agents of S.H.I.E.L.D. (7flix) Airwolf Alias All Creatures Great and Small Ally McBeal Alphas Amazing Grace Ame...
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Encyclopedia of Mathematics
Encyclopedia of Mathematics wiki A new dynamic version of the encyclopedia is now available as a public wiki online. This new wiki is a collaboration between Springer and the European Mathematical Society. This new version of the encyclopedia includes the entire contents of the previous online version, but all entries ...
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NASA Exceptional Engineering Achievement Medal
Xin An Jay Brandon William M. Cirillo Robert Fong Charles E. Hall David G. Johnson Justin H. Kerr Jeffrey L. Lindner Fred G. Martwick Bijan Nemati Mark A. Stephen Nathan C. Wood Robert J. Black Stephen T. Bryson Anthony L. Cook Bryan Fraser Richard R. Hofer Ira Katz Denney J. Keys Alok K. Majumdar Ioannis G. Mikellides...
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Logic programming
In ASP and Datalog, logic programs have only a declarative reading, and their execution is performed by means of a proof procedure or model generator whose behaviour is not meant to be controlled by the programmer. However, in the Prolog family of languages, logic programs also have a procedural interpretation as goal-...
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Encyclopedia of Mathematics
The Encyclopedia of Mathematics (also EOM and formerly Encyclopaedia of Mathematics) is a large reference work in mathematics. Overview The 2002 version contains more than 8,000 entries covering most areas of mathematics at a graduate level, and the presentation is technical in nature. The encyclopedia is edited by Mic...
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Biological small-angle scattering
In a scattering experiment, a solution of macromolecules is exposed to X-rays (with wavelength λ typically around 0.15 nm) or thermal neutrons (λ≈0.5 nm). The scattered intensity I(s) is recorded as a function of momentum transfer s (s=4πsinθ/λ, where 2θ is the angle between the incident and scattered radiation). From ...
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CODEN
Hammer, Donald P.: "A review of the ASTM CODEN for Periodical Titles". Library Resources & Technical Services (ISSN 0024-2527), Vol. 12, p. 359–365 (1968). Saxl, Lea: "Some thoughts about CODEN". In: Special Libraries (ISSN 0038-6723), Vol. 59, p. 279–280 (1968). Pflueger, Magaret: "A vote for CODEN". In: Special Lib...
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National Academies of Sciences, Engineering, and Medicine
Through this study process, the National Academies produce around 200 reports each year. Recent reports cover such topics as addressing the obesity epidemic, the use of forensics in the courtroom, invasive plants, pollinator collapse, underage drinking, the Hubble Telescope, vaccine safety, the hydrogen economy, transp...
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Boolean network
Other updating schemes Classical Boolean networks (sometimes called CRBN, i.e. Classic Random Boolean Network) are synchronously updated. Motivated by the fact that genes don't usually change their state simultaneously, different alternatives have been introduced. A common classification is the following: Determinist...
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Computer Go
AlphaGo, the first computer program to win in even matches against a 9-dan human Go player BaduGI, a program by Jooyoung Lee Crazy Stone, by Rémi Coulom (sold as Saikyo no Igo in Japan) Darkforest, by Facebook Fine Art, by Tencent Fuego, an open source Monte Carlo program Goban, a Macintosh Go program by Sen:te (...
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Sid McMath
McMath's own account, Promises Kept, (University of Arkansas Press, 2003) contains a wealth of primary source material including, in addition to the author's personal recollections, photocopies of correspondence exchanged between him and President Truman and others. Citations in the Appendix refer readers interested i...
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Form-based code
Recent developments Although the Seaside code was commissioned by a private developer, most current codes are commissioned by counties and municipalities. Since Seaside, the scale of Form-Based Coding projects has grown. Form-Based Coding can be applied at many scales, from a two-block main street to a county-wide reg...
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Random permutation statistics
Marko Riedel et al., The difference of number of cycles of even and odd permutations Marko Riedel et al., Keys inside closed boxes, a question on probability 100 prisoners Anna Gál, Peter Bro Miltersen, The cell probe complexity of succinct data structures Various authors, Permutations with a cycle > n/2 Various a...
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Timeline of calculus and mathematical analysis
500BC to 1600 5th century BC - The Zeno's paradoxes, 5th century BC - Antiphon attempts to square the circle, 5th century BC - Democritus finds the volume of cone is 1/3 of volume of cylinder, 4th century BC - Eudoxus of Cnidus develops the method of exhaustion, 3rd century BC - Archimedes displays geometric seri...
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List of software patents
This article lists patents relating to software which have been the subject of litigation or have achieved notoriety in other ways. Notable patent applications are also listed and comparisons made between corresponding patents and patent applications in different countries. The patents and patent applications are categ...
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Batavi (software)
Key Features (1.0 version) Fully flexible template system, including pages/boxes groups layout and page access limitation Full content management including menus, texts, mails, pages etc. Robust architecture to process vast numbers of products, visitors, customers and orders Customer/group specific pricing, payment...
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Mathematica Inc.
Mathematica is an employee-owned company that works at the intersection of data, methods, policy, and practice. Mathematica's staff of more than 1,200 subject matter experts specialize in areas such as health, education, employment, justice, and disability research and are based in offices across the U.S: Princeton, Ne...
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Radiobiology
The exposure caused by potassium-40 present within a normal person. The exposure to the ingestion of a soluble radioactive substance, such as 89Sr in cows' milk. A person who is being treated for cancer by means of a radiopharmaceutical where a radioisotope is used as a drug (usually a liquid or pill). A review of th...
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Tree (data structure)
Using this definition, dedicated terminology can be provided for generalizations of unordered trees that correspond to distinguished subsets of the listed conditions: (1,2,3) – directed pseudotree, (3) – directed pseudoforest, (3,4) – unordered forest (whose components are unordered trees), (4) – directed acyclic ...
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Position-independent code
TSS In IBM S/360 Time Sharing System (TSS/360 and TSS/370) each procedure may have a read-only public CSECT and a writable private Prototype Section (PSECT). A caller loads a V-constant for the routine into General Register 15 (GR15) and copies an R-constant for the routine's PSECT into the 19th word of the save area ...
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Infrastructure (number theory)
In 1972, D. Shanks first discovered the infrastructure of a real quadratic number field and applied his baby-step giant-step algorithm to compute the regulator of such a field in binary operations (for every ), where is the discriminant of the quadratic field; previous methods required binary operations. Ten years l...
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Famine Early Warning Systems Network
Aims FEWS NET aims at providing information to governments, international relief agencies, NGOs, journalists, and researchers planning for, responding to, and reporting on humanitarian crises. With support from a technical team in Washington, D.C., FEWS NET staff based in more than 20 country offices collaborate with U...
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Cuneiform (Unicode block)
The following table allows matching of Borger's 1981 and 2003 numbering with Unicode characters The "primary" transliteration column has the glyphs' Sumerian values as given by the official glyph name, slightly modified here for legibility by including traditional assyriological symbols such as "x" rather than "TIMES"...
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Large eddy simulation
Germano et al. identified a number of studies using the Smagorinsky model that each found different values for the Smagorinsky constant for different flow configurations. In an attempt to formulate a more universal approach to SGS models, Germano et al. proposed a dynamic Smagorinsky model, which utilized two filters...
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Wireless ad hoc network
Implementation difficulties With a time evolving network it is clear we should expect variations in network performance due to no fixed architecture (no fixed connections). Furthermore, since network topology determines interference and thus connectivity, the mobility pattern of devices within the network will impact ...
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Comparison of programming paradigms
See also Comparison of programming languages Comparison of programming languages (basic instructions) Granularity#Computing Message passing Subroutine References Further reading "A Memory Allocator" by Doug Lea "Dynamic Memory Allocation and Linked Data Structures" by (Scottish Qualifications Authority) "Insi...
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Medical genetics
One area in which population categories can be important considerations in genetics research is in controlling for confounding between population substructure, environmental exposures, and health outcomes. Association studies can produce spurious results if cases and controls have differing allele frequencies for genes...
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Plancherel theorem for spherical functions
The many roles of Harish-Chandra's c-function in non-commutative harmonic analysis are surveyed in . Although it was originally introduced by Harish-Chandra in the asymptotic expansions of spherical functions, discussed above, it was also soon understood to be intimately related to intertwining operators between induce...
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Strassen algorithm
The number of additions and multiplications required in the Strassen algorithm can be calculated as follows: let be the number of operations for a matrix. Then by recursive application of the Strassen algorithm, we see that , for some constant that depends on the number of additions performed at each application of ...
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World Meteorological Organization squares
Each 10°x10° square is allocated a number between 1000 and 7817. The numbering system is based first on "global quadrant" numbers where 1=NE, 3=SE, 5=SW, 7=NW which gives the initial digit of any square code (1xxx, 3xxx, 5xxx, 7xxx). The second digit (x0xx through x8xx) indicates the number of tens of degrees latitude ...
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Advanced Idea Mechanics
Technology A.I.M. has created three major implements of deadly potential which stand far above the rest of their accomplishments. The greatest of these was the Cosmic Cube, a device capable of altering reality. A.I.M. did not realize that the cube was merely a containment device, in which the real power was an entity a...
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Reader's Digest Select Editions
2019Volume 363 - #1 Don't Believe It - Charlie Donlea Rainy Day Friends - Jill Shalvis By His Own Hand - Neal Griffin When the Men Were Gone - Marjorie Herrera LewisVolume 364 - #2 The Last Time I Lied - Riley Sager A Borrowing of Bones - Paula Munier Not Our Kind - Kitty Zeldis A Gathering of Secrets - Linda Cas...
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Dark energy
External links "Report of the Dark Energy Task Force" "HubbleSite.org – Dark Energy Website" Multimedia presentation explores the science of dark energy and Hubble's role in its discovery. "Surveying the dark side" "Dark energy and 3-manifold topology" Acta Physica Polonica 38 (2007), pp. 3633–3639 The...
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Words of estimative probability
Stochastic analysis Since combining quantitative, probabilistic information with estimates is successful in business forecasting, marketing, medicine, and epidemiology it should be implemented by the intelligence community as well. These fields have used probability theory and Bayesian analysis as forecasting tools. Us...
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Quantum computing
Identifying cryptographic systems that may be secure against quantum algorithms is an actively researched topic under the field of post-quantum cryptography. Some public-key algorithms are based on problems other than the integer factorization and discrete logarithm problems to which Shor's algorithm applies, like the ...
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1979–80 United States network television schedule
Returning Series60 MinutesAliceThe Bad News BearsBarnaby JonesThe ChisholmsDallasThe Dukes of HazzardHawaii Five-OThe Incredible HulkThe JeffersonsLou GrantM*A*S*HOne Day at a TimeThe WaltonsThe White ShadowWKRP in CincinnatiNew SeriesArchie Bunker's Place Beyond Westworld *Big Shamus, Little ShamusCalifornia FeverThe ...
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Dynamic mechanical analysis
Changing sample geometry and fixtures can make stress and strain analyzers virtually indifferent of one another except at the extreme ends of sample phases, i.e. really fluid or rigid materials. Common geometries and fixtures for axial analyzers include three-point and four-point bending, dual and single cantilever, p...
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Centre for Studies in Civilizations
Project of History of Indian Science, Philosophy and Culture (PHISPC) - supervised and administered by the center, entirely funded by the Ministry of Human Resources and Development. Coordinating efforts to publish fifty volumes of books and anthologies, thirty of which will be major volumes, and twenty of which are to...
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Human behaviour genetics
Also possible are the "children of twins" design (holding maternal genetic contributions equal across children with paternal genetics and family environments) and the "virtual twins" design - unrelated children adopted into a family who are very close or identical in age to biological children or other adopted children...
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Information-based complexity
An example: mathematical finance Very high dimensional integrals are common in finance. For example, computing expected cash flows for a collateralized mortgage obligation (CMO) requires the calculation of a number of dimensional integrals, the being the number of months in years. Recall that if a worst case assuran...
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Streaming algorithm
Let A be the sequence of data stream of length M whose cardinality need to be determined. Let BITMAP [0...L − 1] be the hash space where the (hashedvalues) are recorded. The below algorithm then determines approximate cardinality of A.Procedure FM-Sketch:
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Ecological study
The term “ecological fallacy” means that risk-associations apparent between different groups of people may not accurately reflect the true association between individuals within those groups. Ecological studies should include as many known risk-modifying factors for any outcome as possible, adding others if warranted. ...
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Sorting network
Sorting networks can be implemented either in hardware or in software. Donald Knuth describes how the comparators for binary integers can be implemented as simple, three-state electronic devices. Batcher, in 1968, suggested using them to construct switching networks for computer hardware, replacing both buses and the f...
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Radio-frequency microelectromechanical system
Passive subarrays based on RF MEMS phase shifters may be used to lower the amount of T/R modules in an active electronically scanned array. The statement is illustrated with examples in Fig. 6: assume a one-by-eight passive subarray is used for transmit as well as receive, with following characteristics: f = 38 GHz, Gr...
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Software patents under the European Patent Convention
Further reading Keith Beresford, Patenting Software Under the European Patent Convention, Sweet & Maxwell, 2000. . : "Computer-implemented inventions" European Patent Office, Examination of computer-implemented inventions at the European Patent Office with particular attention to computer-implemented business metho...
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RMI (energy organization)
Advanced Energy, in partnership with RMI, has announced a Request for Information (RFI) for Electric Vehicle Supply Equipment (EVSE) specific to charging stations for plug-in electric vehicles (EV). Books Books published by RMI include: Winning the Oil Endgame: Innovation for Profit, Jobs and Security (2005) (Availabl...
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The Nine Chapters on the Mathematical Art
Major contributions Real number system The Nine Chapters on the Mathematical Art does not discuss natural numbers, that is, positive integers and their operations, but they are widely used and written on the basis of natural numbers. Although it is not a book on fractions, the meaning, nature, and four operations of f...
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Software package metrics
Number of classes and interfaces: The number of concrete and abstract classes (and interfaces) in the package is an indicator of the extensibility of the package. Afferent couplings (Ca): The number of classes in other packages that depend upon classes within the package is an indicator of the package's responsibility...
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Programming idiom
Examples of simple idioms Printing Hello World One of the most common starting points to learn to program or notice the syntax differences between a known language and a new one. It has several implementations, among them the code fragments for C++: std::cout << "Hello World\n"; For Java: System.out.println("Hello Worl...
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Ford–Fulkerson algorithm
Another non-terminating example based on the Euclidean algorithm is given by , where they also show that the worst case running-time of the Ford-Fulkerson algorithm on a network in ordinal numbers is . Python implementation of Edmonds–Karp algorithm import collections class Graph: """This class represents a dir...
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Scale-free network
On a theoretical level, refinements to the abstract definition of scale-free have been proposed. For example, Li et al. (2005) recently offered a potentially more precise "scale-free metric". Briefly, let G be a graph with edge set E, and denote the degree of a vertex (that is, the number of edges incident to ) by . D...
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CSA (database company)
Health and Safety Science Abstracts Authors are ProQuest - CSA Illumina and the University of Southern California. This database covers the relevant literature pertaining to public health, safety, and industrial hygiene. This also includes risks, hazards, and plausible solutions that affect individuals. Topical coverag...
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Geocode
Typical geocodes and entities represented by it: Country code and subdivision code. Polygon of the administrative boundaries of a country or a subdivision. The main examples are ISO codes: ISO 3166-1 alpha-2 code (e.g. AF for Afghanistan or BR for Brazil), and its subdivision conventions, such as AF subdivision codes...
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Concurrent data structure
A key measure for performance is scalability, captured by the speedup of the implementation. Speedup is a measure of how effectively the application is using the machine it is running on. On a machine with P processors, the speedup is the ratio of the structures execution time on a single processor to its execution tim...
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IEEE Jack S. Kilby Signal Processing Medal
Recipients The following people have received the IEEE Jack S. Kilby Signal Processing Medal: 2021: Emmanuel Candès, Justin Romberg and Terence Tao 2020: Ramalingam Chellappa 2019: Alan Willsky 2018: Bede Liu 2017: Martin Vetterli 2016: Louis Scharf 2015: Harry L. Van Trees 2014: Thomas P. Barnwell, III 2013...
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Computer Professionals' Union
Free Information: CPU believes that information in all forms is the collective knowledge and experience of humankind. It believes that no one owns information; therefore, anyone can use and develop it for the benefit of mankind and development of society. Privacy of Information: Computers and telecommunications network...
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Radioanalytical chemistry
Since small amounts of radionuclides are typically being analyzed, the mechanics of manipulating tiny quantities is challenging. This problem is classically addressed by the use of carrier ions. Thus, carrier addition involves the addition of a known mass of stable ion to radionuclide-containing sample solution. The ...
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Demonstrations in Physics
Unit 3, Part I - Waves and Sound Episode 31. Waves: Kinds and Properties Episode 32. Sound Waves - Sources of Sound Frequency, pitch, how they relate to each other and correspond to musical notes. Vibrating systems cause sound, sound requires a medium to travel. Flexing different metal plates to produce different pi...
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Organic photochemistry
The influence of the radiation on the reaction rate can often be represented by a power law based on the quantum flow density, i.e. the mole light quantum (previously measured in the unit Einstein) per area and time. One objective in the design of reactors is therefore to determine the economically most favorable dimen...
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Ionization energy
Ionization energy decreases when Transitioning to a new period: an alkali metal easily loses one electron to leave an octet or pseudo-noble gas configuration, so those elements have only small values for IE. Moving from the s-block to the p-block: a p-orbital loses an electron more easily. An example is beryllium to bo...
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Kaleidoscope (programming language)
Compare the two code segments, both of which allow a user to drag the level of mercury in a simple graphical thermometer with the mouse. Without constraints: while mouse.button = down do old <- mercury.top; mercury.top <- mouse.location.y; temperature <- mercury.height / scale; if old < mercury.top then delt...
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Computational sociology
Impact on science In order for the study of computational sociology to be effective, there has to be valuable innovations. These innovation can be of the form of new data analytics tools, better models and algorithms. The advent of such innovation will be a boom for the scientific community in large. Impact on society ...
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IUPAC nomenclature of inorganic chemistry 2005
Rings and chains The recommendations describe three ways of assigning "parent" names to homonuclear monocyclic hydrides (i.e single rings consisting of one element): the Hantzsch–Widman nomenclature (the method preferred for rings of size 3–10) "skeletal replacement nomenclature"—specifying the replacement of carbon ...
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Ada (programming language)
for aWeekday in Weekday'Range loop -- loop over an enumeration Put_Line ( Weekday'Image(aWeekday) ); -- output string representation of an enumeration if aWeekday in Working_Day then -- check of a subtype of an enumeration Put_Line ( " to work for " & Worki...
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Advancing Physics
The IOP have produced and published two books and two CD-ROMs to support the course. There is one book and CD-ROM for both the AS section of the course and A2 section. The two books supposedly contain all theory and methods that will be required in the exam whilst the CD-ROM offers a more in depth look at every topic a...
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Ring of symmetric functions
The set of monomial symmetric functions parametrized by partitions form a basis of ΛR as a graded R-module, those parametrized by partitions of d being homogeneous of degree d; the same is true for the set of Schur functions (also parametrized by partitions). ΛR is isomorphic as a graded R-algebra to a polynomial ring...
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Automatically Tuned Linear Algebra Software
Optimization of the level 2 BLAS uses parameterization and multiple implementation With data and operations to perform the function is usually limited by bandwidth to memory, and thus there is not much opportunity for optimization All routines in the ATLAS level 2 BLAS are built from two Level 2 BLAS kernels: GEMV...
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List of 7400-series integrated circuits
Normal inputs / open-collector outputs {| class="wikitable" |- ! Configuration !! Buffer !! Inverter |- | Hex 1-input || 74x07 || 74x05 |} {| class="wikitable" |- ! Configuration !! AND !! NAND !! OR !! NOR !! XOR !! XNOR |- | Quad 2-input || 74x09 || 74x03 || style="background: grey; text-align: center;" | n/a || 74x3...
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Oxbow code
Examples (from gnash/server/asobj/Global.cpp 1.46) static void as_global_escape(const fn_call& fn) { // List of chars we must convert to escape sequences const string strHexDigits = "0123456789ABCDEF"; string strInput = fn.arg(0).to_string(); URL::encode(strInput); f...
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SPIKE algorithm
Postprocessing stage The two-partition case In the two-partition case, i.e., when , the reduced system has the form An even smaller system can be extracted from the center: which can be solved using the block LU factorization Once and are found, and can be computed via , . The multiple-partition case Assume that ...
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Control–feedback–abort loop
Figure 1 shows a model of the CFA loop. The CFA loop consists of three main elements – The Control element, the Feedback element and the Abort element. Within any system, the lack of any one of these three elements will result in the system failing at some point in time. The term ‘system’ used in this document can repr...
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Total functional programming
qsort x = qsortSub x x -- minimum case qsortSub [] as = as -- shows termination -- standard qsort cases qsortSub (l:ls) [] = [] -- nonrecursive, so accepted qsortSub (l:ls) [a] = [a] -- nonrecursive, so accepted qsortSub (l:ls) (a:as) = let (lesser, greater) = partition (<a) as ...
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Biopython
>>> # This script loads an annotated sequence from file and views some of its contents. >>> from Bio import SeqIO >>> seq_record = SeqIO.read('pTC2.gb', 'genbank') >>> seq_record.name 'NC_019375' >>> seq_record.description 'Providencia stuartii plasmid pTC2, complete sequence.' >>> seq_record.features[14] SeqFeature(Fe...
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Page replacement algorithm
def simulate_aging(Rs: Sequence, k: int) -> None: """Simulate aging.""" print(' t | R-bits (0-{length}) | Counters for pages 0-{length}'.format(length=len(Rs))) Vs = [0] * len(Rs[0]) for t, R in enumerate(Rs): Vs[:] = [R[i] << k - 1 | V >> 1 for i, V in enumerate(Vs)] ...
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Global Engineering Education
Organizations These are some organizations around the world that focus on global engineering education Purdue University, USA International Engineering Program at the University of Rhode Island RMIT University, Australia Centre for Engineering Education, Universiti Teknologi Malaysia, Malaysia Shanghai Jiao Tong Unive...
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Molecular graphics
// Assume: // Atoms with x, y, z coordinates (Angstrom) and elementSymbol // bonds with pointers/references to atoms at ends // table of colors for elementTypes // find limits of molecule in molecule coordinates as xMin, yMin, xMax, yMax scale = min(xScreenMax / (xMax − xMin), yScreenMax / (yMax − yMin)) xOffset ...
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Multiple zeta function
For example with length k = 2 and weight n = 7: Euler sum with all possible alternations of sign The Euler sum with alternations of sign appears in studies of the non-alternating Euler sum. Notation with are the generalized harmonic numbers. with with with As a variant of the Dirichlet eta function we define w...
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Comparison of programming paradigms
Allocation of dynamic memory for message and object storage Uniquely, the object-oriented paradigm involves dynamic memory allocation from heap storage for both object creation and message passing. A 1994 benchmark - "Memory Allocation Costs in Large C and C++ Programs" conducted by Digital Equipment Corporation on a ...
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Elementary mathematics
Elementary Focus Abacus LCM Fractions and Decimals Place Value & Face Value Addition and subtraction Multiplication and Division Counting Money Counting Algebra Representing and ordering numbers Estimating Problem Solving To have a strong foundation in mathematics and to be able to succeed in the other strands stude...
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Psychometric software
autopsych autopsych autopsych is an open-source software program for performing uni-dimensional Rasch analysis. The app can handle both dichotomous and polytomous data via the application of Master’s partial credit model. The app adopts marginal maximum likelihood estimation and leverages off a total 31 open-source R p...
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High-power rocketry
Performing a 3-sigma, 6-degree of freedom dispersion analysis on submitted projects. Providing guidance and a review of the Class 3 waiver application package prior to FAA submittal. Working with the FAA/AST to educate applicants and FAA personnel to the needs of Class 3 project teams in maintaining the viability and...
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Saint-Petersburg State University of Architecture and Civil Engineering
During the 179-year period of its existence, SPbGASU has provided an excellent professional education for more than 60 000 architects and engineers including specialists who had come from over 50 foreign states. The graduates of the University have contributed a lot into the architectural outlook of Saint Petersburg an...
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Advanced Telescope for High Energy Astrophysics
X-ray Integral Field Unit (X-IFU) The X-ray Integral Field Unit is the cryogenic X-ray spectrometer of Athena X-IFU will deliver spatially resolved X-ray spectroscopy, with a spectral resolution requirement of 2.5 eV up to 7 keV over a hexagonal field of view of 5 arc minutes (equivalent diameter). The prime detector...
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Power Lunch
Present segments CNBC 101: Bob Pisani presents the "CNBC 101" segment on Thursdays. News Update: News headlines from outside the world of business, broadcast at 2.30pm ET. Econo Smackdown: Seen during the first hour with Steve Liesman (in studio) and Rick Santelli (in Chicago). Trader Triple Play: Seen on Fridays durin...
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Mathieu group M24
Applications The theory of umbral moonshine is a partly conjectural relationship between K3 surfaces and M24. The Conway group Co1, the Fischer group Fi24, and the Janko group J4 each have maximal subgroups that are an extension of the Mathieu group M24 by a group 211. (These extensions are not all the same.) Represent...
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Magic number (programming)
In protocols Examples The OSCAR protocol, used in AIM/ICQ, prefixes requests with 2A. In the RFB protocol used by VNC, a client starts its conversation with a server by sending "RFB" (52 46 42, for "Remote Frame Buffer") followed by the client's protocol version number. In the SMB protocol used by Microsoft Window...
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Differential item functioning
Wald statistic However, more common than not, a 2PL or 3PL model is more appropriate than fitting a 1PL model to the data and thus both the a and b parameters should be tested for DIF. Lord (1980) proposed another method for testing differences in both the a and b parameters, where c parameters are constrained to be eq...
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Homological algebra
On a philosophical level, homological algebra teaches us that certain chain complexes associated with algebraic or geometric objects (topological spaces, simplicial complexes, R-modules) contain a lot of valuable algebraic information about them, with the homology being only the most readily available part. On a techni...
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List of Sinclair QL software
E Easel (Business Graphics), Psion (Sinclair), 1984 EasyPTR, Albin Hessler Eye-Q, Graphics System, Digital Precision Eye-Q Special Edition, Graphics System, Digital Precision F Ferret (File Search Utility), Sector Software Fibu (Accounting), eTo soft Flashback (Database), Sector Software Forth, Computer One ...
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Ukkonen's algorithm
Run time The naive implementation for generating a suffix tree going forward requires or even time complexity in big O notation, where is the length of the string. By exploiting a number of algorithmic techniques, Ukkonen reduced this to (linear) time, for constant-size alphabets, and in general, matching the run...
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Code-division multiple access
In 2019, schemes to precisely estimate the required length of the codes in dependence of Doppler and delay characteristics have been developed. Soon after, machine learning based techniques that generate sequences of a desired length and spreading properties have been published as well. These are highly competitive wit...
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Rod calculus
Algorithm: Arrange the coefficients in tabular form, constant at shi, coeffienct of x at shang lian, the coeffiecnt of X^4 at yi yu;align the numbers at unit rank. Advance shang lian two ranks Advance yi yu three ranks Estimate shang=20 let xia lian =shang * yi yu let fu lian=shang *yi yu merge fu lian with shang lian ...
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Elementary algebra
Solving algebraic equations The following sections lay out examples of some of the types of algebraic equations that may be encountered. Linear equations with one variable Linear equations are so-called, because when they are plotted, they describe a straight line. The simplest equations to solve are linear equations t...
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Archaeological open-air museum
Museum – "A museum is a non-profit, permanent institution in the service of society and its development, open to the public, which acquires, conserves, researches, communicates and exhibits the tangible and intangible heritage of humanity and its environment for the purposes of education, study and enjoyment." Professi...
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Pure mathematics
See also Applied mathematics Logic Metalogic Metamathematics References External links What is Pure Mathematics? – Department of Pure Mathematics, University of Waterloo What is Pure Mathematics? by Professor P. J. Giblin The University of Liverpool The Principles of Mathematics by Bertrand Russell How to Become a Pur...
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Future of mathematics
Numerical analysis and scientific computing On numerical analysis and scientific computing: In 2000, Lloyd N. Trefethen wrote "Predictions for scientific computing 50 years from now", which concluded with the theme that "Human beings will be removed from the loop" and writing in 2008 in The Princeton Companion to Mathe...
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List of MeSH codes (M01)
The following is a list of "M" codes for Medical Subject Headings (MeSH), as defined by the United States National Library of Medicine (NLM). This list continues the information at List of MeSH codes (L01). Codes following these are found at List of MeSH codes (N01). For other MeSH codes, see List of MeSH codes. The so...
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National University of Engineering (Nicaragua)
In scientific research efforts have been made to develop a culture of research in the university community. Mechanisms have been established for the purpose of involving greater number of teachers and students. These calls are designed to select projects that provide answers to the problems of Nicaragua and are funded ...
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Differential geometry of surfaces
For any surface embedded in Euclidean space of dimension 3 or higher, it is possible to measure the length of a curve on the surface, the angle between two curves and the area of a region on the surface. This structure is encoded infinitesimally in a Riemannian metric on the surface through line elements and area eleme...
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Hypervalent molecule
Alternative definition Durrant has proposed an alternative definition of hypervalency, based on the analysis of atomic charge maps obtained from atoms in molecules theory. This approach defines a parameter called the valence electron equivalent, γ, as “the formal shared electron count at a given atom, obtained by any ...
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