Results 111 to 120 of about 6,151,667 (279)
Random continued fractions with beta-hypergeometric distribution
28 pages, 11 figures.
Gérard Letac, PICCIONI, MAURO
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Symbiotic gill and nonsymbiotic mantle of mussel Gigantidas haimaensis responded differently to deep‐sea sampling stress caused by acute environmental changes. Sharply increased transcription factors potentially play key roles in initiating the response of sampled deep‐sea macrobenthos to the sampling stress.
Guoyong YAN+4 more
wiley +1 more source
The rarity of mutations and the inflation of bacterial effective population sizes
Abstract Mutations are fundamental for evolution, and their mathematical modelling in population genetics heavily relies on our perception of their frequency and the timescale over which they occur. A common assumption is that mutations are infrequent, so when a new mutation arises, the previous one has either become fixed or lost.
Rui Borges
wiley +1 more source
An improved bound for negative binomial approximation with -functions
In this article, we use Stein’s method together with -functions to give an improved bound for the total variation distance between the distribution of a non-negative integer-valued random variable and the negative binomial distribution with parameters ...
K. Teerapabolarn
doaj +1 more source
The source of variability in lifespan among genetically identical Caenorhabditis elegans is a mystery. We used biomarkers of aging to isolate prospectively long‐lived and short‐lived individuals from the same population. We then used transcriptomic approaches to characterize these long‐ and short‐lived sub‐populations against the average physiological ...
Matthew C. Mosley+6 more
wiley +1 more source
Beta-hypergeometric distributions and random continued fractions
In this paper an enlargement of the beta family of distributions on (0, 1) is presented. Distributions in this class are characterized as being the laws of certain random continued fractions associated with products of independent random matrices of order 2 whose entries are either constant or beta distributed. The result can be proved by a famous 1879
ASCI, CLAUDIO+2 more
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Mass spectrometry analysis of 569 lipid species showed that ceramide‐to‐hexosylceramide conversion and the preservation of ether‐linked PC levels are key phenotypic traits ensuring extreme longevity. This lipidomic signature is shaped by an intrinsic adaptive program that maintains protective mechanisms and cellular identity.
Anna Fernàndez‐Bernal+10 more
wiley +1 more source
Multilevel Fixed and Sequential Acceptance Sampling: The R Package MFSAS
Multilevel acceptance sampling for attributes is used to decide whether a lot from an incoming shipment or outgoing production is accepted or rejected when the product has multiple levels of product quality or multiple types of (mutually exclusive ...
Aaron Childs, Yalin Chen
doaj
Distribution of LRC for testing sphericity of a complex multivariate Gaussian model
In this paper, exact null distribution of the likelihood ratio criterion for testing sphericity structure in a complex multivariate normal covariance matrix is obtained in computable series form.
D. K. Nagar, S. K. Jain, A. K. Gupta
doaj +1 more source
HyperQuick algorithm for discrete hypergeometric distribution
AbstractBased on the binomial identity∑k=0x(Mk)(N−Mn−k)=∑m=MN−n+x(mx)(N−1−mN−m−n+x) we present an algorithm for computing the cumulative distribution function of a random variable with discrete hypergeometric distribution. For any accuracy ϵ⩾0 the required number of computational cycles is less then N−n, where N is the size of the population and n is ...
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