Bimodal volcanism refers to the eruption of both mafic and felsic lava s from a single volcanic centre with little or no lavas of intermediate composition. This type of volcanism is normally associated with areas of extensional tectonics , particularly rift s. Occurrence Most occurrences of bimodal volcanism are associated with thinning of the crust and the presence of such rocks in metamorphic sequences has been used to provide evidence for past rifting events. ref http www.sciencedirect.com science? ob ArticleURL& udi B6VBP 4D9D9JJ 1& user 10& rdoc 1& fmt & orig search& sort d&view c& acct C000050221& version 1& urlVersion 0& userid 10&md5 d28c36995569a758f71c89d2f2757b66 Brewer, T.S., Ahall, K L., Menuge, J.F., Storey, C.D. & Parrish, R.R. 2004. Mesoproterozoic bimodal volcanism in SW Norway, evidence for recurring pre Sveconorwegian continental margin tectonism, Precambrian Research, 134, 249 273. ref Most examples come from areas of active continental rifting such as the Basin and Range province. Bimodal volcanism has also been described from areas of transtension, ref http alaska.usgs.gov staff geology 2007 Till et al Tintina.pdf Till, A.B., Roeske, S.M., Bradley, D.C., Friedman, R. & Layer, P.W. 2007. Early Tertiary transtension related deformation and magmatism along the Tintina fault system, Alaska, The Geological Society of America Special Paper 434, 233 264 ref the early phases of back arc basin formation. ref Fujioka, K., Nishimura, A., Koyama, M., and Kotake, N., 1990. Bimodal arc volcanism and backarc rifting along Izu Bonin Arc. Eos, 71, 956. ref Mechanism of formation Bimodal volcanism is normally explained as a result of partial melting of the Crust geology crust , creating Granite granitic magma s, during the emplacement of large volumes of relatively hot basaltic magma from a mantle source. The two magma types then form separate magma chambers giving rise to periodic eruption of both types of lava. ref http earth.geology.yale.edu ajs 2001 Mar qn030100286.pdf ... more details
Bimodal bilingualism refers to an individual or community s multilingualism bilingual competency in at least one spoken language and at least one sign language signed language spoken and signed are the modes to which bimodal refers . A substantial number of bimodal bilinguals are Child of Deaf Adult Children of Deaf Adults or other hearing person hearing people who learn sign language for various reasons. Deaf people as a group have their own sign language and culture, but invariably live within a larger hearing culture with its own spoken language. Thus, most deaf people are bilingual to some extent in a spoken language in some form . ref name Ann Ann, J. 2001 . Bilingualism and Language Contact. In C. Lucas Ed. , The Sociolinguistics of Sign Languages 33 60 . Cambridge Cambridge University Press. ref In discussions of multilingualism in the United States , bimodal bilingualism and bimodal bilinguals have often not been mentioned or even considered, in part because American Sign Language , the predominant sign language used in the U.S., only began to be acknowledged as a natural language in the 1960s In discussions of bimodal bilingualism in the U.S., the two languages involved are generally ASL and English . However, bimodal bilinguals share many of the same traits as traditional bilinguals those with competency in at least two spoken languages , as well as differing in some interesting ... Bimodal bilinguals, like spoken language bilinguals, exhibit a wide range of language competency in their first language first and second language second languages. For Deaf people the majority of bimodal ... of their own bilingualism Like hearing spoken language bilinguals, Deaf bimodal bilinguals generally ... or Deaf. ref name Grosjean Everyday shifts along the language mode continuum Deaf or bimodal ... bilingualism, bimodal bilingualism in the U.S. involves two languages with vastly different social ... language. In this view, all sign print bilinguals are bimodal bilinguals, but all bimodal bilinguals ... more details
Summary Bimodal bivariate distribution. In both X and Y, it is the sum of two normal distributions. Licensing PD self date October 2006 Orphan image Copy to Wikimedia Commons bot Fbot ... more details
Summary Bimodal bivariate distribution. In both X and Y, it is the sum of two normal distributions. svg graph Licensing PD self date October 2006 Copy to Wikimedia Commons bot Fbot priority true ... more details
The phrase T distribution may refer to Student s t test in univariate statistics, Student s t distribution in univariate probability theory, Hotelling s T square distribution in multivariate statistics. Multivariate Student distribution . disambig Category Probability distributions ... more details
wiktionarypar distribution tocright Distribution may refer to In mathematics, science, and technology In mathematics Distribution mathematics , generalized functions used to formulate solutions of partial differential equations Probability distribution , the probability of a particular values or value range of a variable Cumulative distribution function , in which the probability of a value is a function of that value Frequency distribution , a list of the values recorded in a sample Inner distribution and outer distribution , in coding theory Distribution differential geometry , a subset of the tangent ... state space Distribution of terms , a situation in which all members of a category are accounted ... elementary algebra In science Complementary distribution , in linguistics, a relationship between elements found in opposite environments Distribution pharmacology , the transfer of a drug within the body Distribution function , in physics, the number of particles per unit volume in phase space Population distribution , the geographical area in which a species lives Spectral power distribution , in color science, the power per unit area per unit wavelength of an illumination Trip distribution , part ... distribution , the final stage in the delivery of electricity Electronic brakeforce distribution , an automotive ... , in which a program is run on multiple networked computers Software distribution, a bundle of a specific software already compiled and configured Linux distribution , one of several distributions built on the Linux kernel Distribution concurrency , the projection operator in a history monoid, a representation of the histories of concurrent computer processes Key distribution center , part of a cryptosystem intended to reduce the risks inherent in exchanging keys Content distribution , publishing and web design as method to provide information Digital distribution , publishing media digitally Distribution of elements in the distributed element model of electric circuits distributed computing ... more details
In statistics , the concept of the shape of the distribution refers to the shape of a probability distribution and it most often arises in questions of finding an appropriate distribution to use to model the statistical properties of a population, given a sample from that population. The shape of a distribution may be considered either descriptively, using terms such as J shaped , or numerically, using quantitative measures such as skewness and kurtosis . Considerations of the shape of a distribution arise in statistical data analysis , where simple quantitative descriptive statistics and plotting techniques such as histograms can lead on to the selection of a particular family of distributions for modelling purposes. File Standard deviation diagram.svg right thumb 350px The Normal distribution , often called the bell curve Image Exponential distribution pdf.png thumb Exponential distribution Descriptions of shape The shape of a distribution will fall somewhere in a continuum where a flat distribution might be considered central and where types of departure from this include mounded or unimodal , U shaped, J shaped, reverse J shaped and multi modal. ref Yule & Kendall 1950 Chapter 4 &mdash Frequency Distributions ref A bimodaldistribution would have two high points rather than one. The shape of a distribution is sometimes characterised by the behaviours of the tails as in a long or short tail . For example a flat distribution can be said either to have no tails, or to have short tails. A normal distribution is usually regarded as having short tails, while an exponential distribution has exponential tails and a Pareto distribution has long tails. Even in the relatively simple case of a mounded distribution, the distribution may be skewed to the left or skewed to the right, with symmetric corresponding to no skew. See also Shape parameter List of probability distributions Notes Reflist References Yule, G.U., Kendall, M.G. 1950 An Introduction to the Theory of Statistics ... more details
Fisher distribution may refer to Fisher s noncentral hypergeometric distribution Fisher s z distribution Fisher s fiducial distribution Fisher Bingham distribution F distribution , also called Fisher Snedecor distribution or Fisher F Distribution Fisher Tippett distribution Von Mises Fisher distribution disambig ... more details
Uniform distribution may refer to Probability theory Uniform distribution discrete Discrete uniform distribution Uniform distribution continuous Continuous uniform distribution Other Uniform distribution modulo 1 , see Equidistributed sequence Uniform distribution ecology , a type of species distributionDistribution of military uniform s disambig eo Uniforma distribuo eu Banaketa uniforme argipena fr Loi uniforme nl Uniforme verdeling ru vi Ph n b ng u nhi n u ... more details
The lambda distribution is either of two probability distribution s used in statistics Tukey lambda distribution Tukey s lambda distribution is a shape conformable distribution used to identify an appropriate common distribution family to fit a collection of data to. Wilks lambda distribution is an extension of George W. Snedecor Snedecor s F distribution for matrix mathematics matricies used in multivariate hypothesis testing, especially with regard to the likelihood ratio test and multivariate analysis of variance . disambig Category Probability distributions ... more details
Unreferenced stub auto yes date December 2009 A distribution deal is a legal agreement between one party and another, to handle distribution business distribution of a product. DEFAULTSORT Distribution Deal Category Commercial item transport and distribution Business stub ... more details
Unreferenced date January 2007 In statistical hypothesis testing , the null distribution is the probability distribution of the test statistic when the null hypothesis is true. In an F test , the null distribution is an F distribution . DEFAULTSORT Null Distribution Category Statistical inference Category Probability distributions Category Statistical terminology Statistics stub ko ... more details
Distribution mathematics Tempered distributions and Fourier transform Distribution mathematics tempered distributions on Euclidean space Tempered representation tempered distributions on semisimple groups disambig ... more details
Unreferenced date February 2007 In statistics , a univariate distribution is a probability distribution of only one random variable . This is in contrast to a multivariate distribution , the probability distribution of a random vector . See also Univariate Bivariate distribution Further reading cite doi 10.1198 000313008X270448 Common univariate probability distributions DEFAULTSORT Univariate Distribution Category Types of probability distributions Category Statistical terminology Stat stub ... more details
In mathematics and statistics , an asymptotic distribution is a hypothetical distribution that is in a sense the limiting distribution of a sequence of distributions. One of the main uses of the idea of an asymptotic distribution is in providing approximations to the cumulative distribution function s of statistical estimator s. Definition A sequence of distributions corresponds to a sequence of random variables Z sub i sub for i 1, 2, ... In the simplest case, an asymptotic distribution exists if the probability distribution of Z sub i sub converges to a probability distribution the asymptotic distribution as i increases see Convergence of random variables Convergence in distribution convergence in distribution . A special case of an asymptotic distribution is when the sequence of random variables always approaches zero that is, the Z sub i sub go to 0 as i goes to infinity. Here the asymptotic distribution is a degenerate distribution , corresponding to the value zero. However, the most usual sense in which the term asymptotic distribution is used arises where the random variables Z ... converges in distribution to a non degenerate distribution for two sequences a sub i sub and b sub i sub then Z sub i sub is said to have that distribution as its asymptotic distribution. If the distribution function of the asymptotic distribution is F then, for large n , the following approximations ... If an asymptotic distribution exists, it is not necessarily true that any one outcome of the sequence ... distribution to arise as an asymptotic distribution is the normal distribution . In particular, the central limit theorem provides an example where the asymptotic distribution is the normal distribution ... normality. The Binomial distribution seems to be the first asymptotic approximation by a normal distribution compared to the more general case of central limit theorem , convergence of the Binomial to the normal is especially rapid. cn date March 2011 Asymptotic normality of the Binomial distribution ... more details
Unreferenced date January 2007 A utilization distribution is a probability distribution constructed from data providing the location of an individual in space at different points in time. See also Home range Local convex hull DEFAULTSORT Utilization Distribution Category Types of probability distributions Statistics stub ... more details
The Wigner distribution is either of two things Wigner semicircle distribution A probability function used in mathematics Eugene Wigner Wigner quasi probability distribution A distribution in phase space encoding, in a convenient representation, properties of quantum mechanical wave functions. Strictly speaking, it is the Wigner map of the density matrix in the Weyl quantization Weyl correspondence . In signal analysis, it is known as the Wigner Ville distribution. It is useful in quantum statistical mechanics, quantum chemistry, optics, quantum computing etc. Eugene Wigner , Hermann Weyl , J. Ville See also Breit Wigner distribution disambig nl Wignerdistributie ... more details
Unreferenced date June 2007 Neptune Distribution was a comic distribution company established in Leicester in 1986. It was set up to challenge Titan Books Titan Distribution s monopoly on the United Kingdom UK comic distribution business. The proved to be successful with the company expanding into publishing in 1988 with Trident Comics and later help found Apocalypse Ltd , publishing Toxic , a weekly title meant to compete with 2000 AD comic 2000 AD . However the company expanded too quickly and financial problems meant the distribution side of the company was sold to Diamond Comic Distributors in 1992. Category Neptune Distribution UK comics stub ... more details
Stationary distribution may refer to The limiting distribution in a Markov chain Steady state analysis and limiting distributions Markov chain The marginal distribution of a stationary process or stationary time series The set of joint probability distribution s of a stationary process or stationary time series In some fields of application, the term stable distribution is used for the equivalent of a stationary marginal distribution, although in probability and statistics the term has a rather different meaning see stable distribution . Crudely stated, all of the above are specific cases of a common general concept. A stationary distribution is a specific entity which is unchanged by the effect of some matrix or operator it need not be unique. Thus stationary distributions are related to eigenvector s for which the eigenvalue is unity. See also Stationary ergodic process Perron&ndash Frobenius theorem Stationary state or ground state in quantum mechanics Category Statistical terminology Category Stochastic processes Category Time series analysis stats stub ... more details
About font distribution other uses Distribution disambiguation stub The units in which Movable type metal type is sold, containing relative proportions of letters appropriate for a given language. http www.alembicpress.co.uk Typecases QTYDIST.HTM ... more details
Distribution Select formerly Distribution Musicor, Distribution GAM and Distribution Trans Canada is a Canadian record and video distributor based in Montreal , Quebec in 1965 in music 1965 as Disques Select. It is a wholly owned division of Quebecor Media . History 1965 Company formed as Disques Select. 1971 Company moves to Sainte Catherine Street. 1974 Distribution Musicor opens in Pointe Claire , Quebec . Unrelated to an American record label, Musicor Records . 1977 Disques Select changes into Distribution Select. 1980 Company acquires Services de Musique Trans Canada for a while, so for 12 years. 1985 Distribution Select adopts a new logo. 1989 Distribution Musicor and Distribution Trans Canada set up in Pointe Claire , Quebec . 1993 Distribution Trans Canada ceases operations. 1996 Distribution Musicor joins with Distribution GAM. 2001 Distribution Select ceases the activities of its sister labels, Distribution Musicor, Distribution Trans Canada and Distribution GAM. Labels Disques Passeport Global Video Perrin Video Disques Musicor Guy Cloutier Communications See also List of record labels External links http www.distributionselect.ca en index.asp Official site cite web url http www.cria.ca gold 1203 g.php title Canadian French and English artists rack up certifications date December 2003 accessdate 2008 12 30 publisher Canadian Recording Industry Association DEFAULTSORT Select Category Quebecor Category Quebec record labels Category Record labels established in 1965 Category Companies based in Montreal Category Article Feedback 5 Canada record label stub Quebec stub fr Distribution Select ... more details
A product distribution is a probability distribution constructed as the distribution of the Product business ... random variables X and Y , the distribution of the random variable Z that is formed as the product math Z XY math is a product distribution . Algebra of random variables main Algebra of random variables The product is one type of algebra for random variables Related to the product distribution are the ratio distribution , sum distribution and difference distribution . More generally, one ... John Wiley & Sons Wiley year 1979 isbn 0 471 01406 0 ref Derivation A way of deriving the product distribution of Z from the joint distribution of the two other random variables, X and Y , is by integration ... right , dx. math This is not always straightforward. Special cases The distribution of the product of two random variables which have lognormal distribution s is again lognormal. This is itself a special ... of the components of the product, the result might be transformed to provide the distribution of the product ... are in some standard families of distributions. The distribution of the product of a random variable having a Uniform distribution continuous uniform distribution on 0,1 with a random variable having a gamma distribution with shape parameter equal to 2, is an exponential distribution . ref name JKB ... 0 471 58494 0 ref A more general case of this concerns the distribution of the product of a random variable having a beta distribution with a random variable having a gamma distribution for some cases ... is again a gamma distribution but with a changed shape parameter. ref name JKB The K distribution is an example of a non standard distribution that can be defined as a product distribution where both components have a gamma distribution . See also Algebra of random variables Notes Reflist References cite journal doi 10.1137 0118065 title The distribution of products of beta, gamma and Gaussian random ... 18 issue 4 pages 721&ndash 737 year 1970 jstor 2099424 cite journal title The distribution of products ... more details
A dyadic distribution is a specific type of discrete or categorical probability distribution that is of some theoretical importance in data compression . Definition A dyadic distribution on the nonnegative integers 0, 1, 2, ... is a probability distribution whose probability mass function is math f u 2 n u , quad u in U math where n sub u sub is some positive integer . More generally it is a categorical distribution in which the probability assigned to any label is of the above form It is possible to find a code defined on this distribution, which has an average code length that is equal to the entropy . Citation needed date August 2010 No footnotes date July 2010 References Cover, T.M., Joy A. Thomas, J.A. 2006 Elements of information theory , Wiley. ISBN 0471241954 DEFAULTSORT Dyadic Distribution Category Types of probability distributions Category Data compression ... more details
In telecommunications , a fading distribution is the probability distribution of the value of Signalling telecommunication signal fading relative to a specified reference level. In the case of phase interference fading , the time distribution of the instantaneous field strength usually approximates a Rayleigh distribution when several signal components of equal amplitude are present. The field strength is usually measured in volts per meter. The fading distribution may also be measured in terms of Power physics power level, where the unit of measure is usually watts per square meter and the expression is in decibel s. References FS1037C MS188 Category Radio frequency propagation fading telecomm stub ... more details
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