Results 71 to 80 of about 6,211,864 (316)

On the modelling of the excesses of galaxy clusters over high-mass thresholds

open access: yes, 2012
In this work we present for the first time an application of the Pareto approach to the modelling of the excesses of galaxy clusters over high-mass thresholds.
Asensio Ramos   +42 more
core   +1 more source

Dynamics of the Mammalian Placental Metabolome in Placentogenesis and Embryonic Development

open access: yesAdvanced Science, EarlyView.
This study identifies three metabolic stages (E8.5, E9.5–10.5, E11.5–14.5) and two transition periods (E8.5–9.5, E10.5–11.5) in mouse placental development. NAD(H) emerges as a key dynamic metabolite that enhances embryonic growth through accelerated segmentation and increased proliferation of mouse embryonic stem cell (mESC)‐induced presomitic ...
Gang Chen   +11 more
wiley   +1 more source

Methodology of regional analysis of the Russian economic reseaerch market

open access: yesEkonomika Nauki, 2019
After the dissolution of the Soviet Union and the transition to a market economy model in Russia, there has been observed a rapid growth for market economic studies challenge in ranking of its three segments, such as the economists market, scientific ...
V. M. Moskovkin, X. Sun
doaj   +1 more source

Stochastic orders for a multivariate Pareto distribution

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2021
In this article we give some theoretical results for equivalence between different stochastic orders of some kind multivariate Pareto distribution family.
Catana Luigi-Ionut
doaj   +1 more source

Feller-Pareto and Related Distributions: Numerical Implementation and Actuarial Applications

open access: yesJournal of Statistical Software, 2022
Actuaries model insurance claim amounts using heavy tailed probability distributions. They routinely need to evaluate quantities related to these distributions such as quantiles in the far right tail, moments or limited moments.
Christophe Dutang   +2 more
doaj   +1 more source

Truncated Rayleigh Pareto Distribution

open access: yesJournal of Physics: Conference Series, 2020
Abstract In this paper, we introduced a new distribution which is the truncated Rayleigh Pareto distribution of a variable, and some useful functions, and some mathematical and statistical properties such as density function, the cumulative distribution function, limit function, reliability function, hazard function, stress - strength ...
Reyah Zeadan Khalaf   +1 more
openaire   +1 more source

Modelling Censored Losses Using Splicing: a Global Fit Strategy With Mixed Erlang and Extreme Value Distributions

open access: yes, 2017
In risk analysis, a global fit that appropriately captures the body and the tail of the distribution of losses is essential. Modelling the whole range of the losses using a standard distribution is usually very hard and often impossible due to the ...
Antonio, Katrien   +3 more
core   +1 more source

Spatially Resolved Multiomics Reveals Metabolic Remodeling and Autophagy Activation in Adamantinomatous Craniopharyngiomas

open access: yesAdvanced Science, EarlyView.
Multiomics integration analysis reveals the “cystic fluid–tumor cell” metabolic coupling that mediates active choline/ethanolamine uptake of tumor cells from cystic fluid and PC/PE synthesis pathways reprogramming that mediating autophagy pathway activation within ACP. ABSTRACT Adamantinomatous craniopharyngioma (ACP), a benign yet highly recurrent and
Dongting Chen   +9 more
wiley   +1 more source

On Alpha Power Transformation Generalized Pareto Distribution and Some Properties

open access: yesJournal of Applied Mathematics
Recently, the need to develop statistical distributions has become the most important spot. In this context, we employ the α-power transformation (APT) method to convert the generalized Pareto distribution (GPD) into a new distribution.
Salma Omar Bleed   +3 more
doaj   +1 more source

An EM Algorithm for Double-Pareto-Lognormal Generalized Linear Model Applied to Heavy-Tailed Insurance Claims

open access: yesRisks, 2017
Generalized linear models might not be appropriate when the probability of extreme events is higher than that implied by the normal distribution. Extending the method for estimating the parameters of a double Pareto lognormal distribution (DPLN) in Reed ...
Enrique Calderín-Ojeda   +2 more
doaj   +1 more source

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