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We introduce a family of boundary confinements for Coulomb gas ensembles, and study them in the two-dimensional determinantal case of random normal matrices. The family interpolates between the free boundary and hard edge cases, which have been well studied in various random matrix theories. The confinement can also be relaxed beyond the free boundary to produce ensembles with fuzzier boundaries,

Statistik 10p ekologi BIO 580 Helsingborg HT 2004 Course Summary f or NGEA 05 ”G IS & RS for environmental studies” vt 2022 Course coordinator: Micael Runnström Teachers in the course: MR, Helena Elvén Eri Number of students: 7 registered students Grade distribution: 0 UK, 2 G, 5 VG. ksson, Tristan Bakx, Evaluation Summary of the course evaluation Number of survey responses: 3, of which is 43 % of

https://www.nateko.lu.se/sites/nateko.lu.se/files/2023-03/NGEA05_VT22_Generell%20Kurssammanst%C3%A4llning.pdf - 2026-09-05

We study analytically the dynamics of two-dimensional rectangular lattices with periodic boundary conditions. We consider anisotropic initial data supported on one low-frequency Fourier mode. We show that, in the continuous approximation, the resonant normal form of the system is given by integrable PDEs. We exploit the normal form in order to prove the existence of metastability phenomena for the

Popular Abstract in Swedish Konstant produktion av blodceller i benmärgen krävs för att bibehålla normal syretransport i blodet, sårläkning och ett effektivt immunförsvar. Bakom denna produktion ligger hematopoetiska blodstamceller som regleras av en komplex interaktion mellan dem och deras omgivning. Varje blodstamcell kan med självförnyande celldelningar, där minst en dottercell bibehåller en stHematopoietic stem cells (HSC) are sufficient and required for life long production of all blood cell lineages. Steady state HSCs are largely quiescent and we demonstrate that the kinetics of HSC cell cycling are slower compared to more committed progenitor cells also during expansion and self-renewal ex vivo and in physiological conditions. Such slow kinetics during cell division might reflect a

The Kr 3d correlation satellites have been studied experimentally by using plane polarized synchrotron radiation to record polarization dependent photoelectron spectra (PES), and theoretically by employing the R-matrix method to calculate photoionization cross sections, PES and angular distributions. The experimental spectra have allowed the photoelectron anisotropy parameters characterizing the a

A recursive algorithm is proposed for estimation of parameters in mixture models, where the observations are governed by a hidden Markov chain. The performance of the algorithm is studied by simulations of a symmetric normal mixture. The algorithm seems to be stable and produce approximately normally distributed estimates, provided the adaptive matrix is kept well conditioned.

The outcomes of press perturbation experiments on community dynamics are difficult to predict because there is a high degree of indeterminacy in the strength and direction of ecological interactions. Ecologists need to quantify uncertainties in estimates of interaction strength, by determining all the possible values a given interaction strength could take and the relative likelihood of each value

Abstract Value at Risk (VaR) is a simple, transparent and consistent measure that summarizes all sources of downside risk. VaR has gained acceptance in the banking industry in accordance to Basel II rules which require banks to use VaR in calculations of market risk. VaR as a risk measure is not as widely accepted in the investment industry. This thesis embraces five different VaR models to 20 equ

Basel II requires Value at Risk (VaR) as a standardized risk measure for calculating market risk. However, the validity of the risk measure has been questioned since it neglects the losses beyond the VaR level. Expected Shortfall (ES) is a response to this limitation, as it is defined as the average of the losses ignored by VaR. This study applies VaR and ES to three commodities; gold, oil and cor

We introduce the Hausdorff α-entropy to study the strong Hellinger consistency of posterior distributions. We obtain general Bayesian consistency theorems which extend the well-known results of Barron et al. [1999. The consistency of posterior distributions in nonparametric problems. Ann. Statist. 27, 536–561] and Ghosal et al. [1999. Posterior consistency of Dirichlet mixtures in density estimati

Idrottande ungdomar, i åldern 12-20 år, har ett specialbehov vad gäller kosten i jämförelse med andra individer. Då ungdomarna fortfarande växer och utvecklas är en sund kosthållning ytterst angeläget för upprätthållande av en normal kroppslig utveckling. Dessutom ställs i och med idrottandet högre krav på näringsintaget eftersom mer energi- och näringsämnen samt vätska förbrukas på grund av den fYoung athletes, between 12-20 years, have special dietary needs in comparison to other individuals. Since these individuals are still growing and maturing, a healthy diet is of utmost importance for the maintenance of a normal physical development. Moreover; due to physical activity the requirements of energy, nutrients and fluids are higher for young athletes. In order to achieve optimal physical

Background: Prolonged labour is associated with greater morbidity and mortality for mother and child. Connexin 43 is a major myometrial gap junction protein found in human myometrium. Syndecan 3 seems to prevail in the human uterus among heparan sulphate proteoglycans, showing the most significant increase during labour. The aims of the present study were to investigate syndecan 3 and connexin 43

Denna uppsats skrivs på uppdrag av läkemedelsföretaget QPharma. I uppsatsen undersöks tillämpningen av statistisk processtyrning (SPC) för en av QPharmas läkemedelsprodukter. I uppsatsen genomförs en utförlig litteraturstudie med fokus på teorin bakom SPC. Med hjälp av denna teoretiska bakgrund applicerar vi SPC på data insamlad av företaget. Normalsannolikhetsdiagram används för att kontrollera oThis essay was written at the behest of pharmaceutical company QPharma. The essay investigates the application of statistical process control (SPC) for one of QPharmas pharmaceutical products. The essay includes a thorough literature review focusing on the theory behind SPC. With the help of the theoretical background SPC is then applied to data collected by QPharma. Normal probability plots are u

This thesis investigates methods that estimate the Expected Shortfall correctly by passing the Acerbi-Szekely (2014) backtest in both stressed and calm periods. This backtest is added to in this thesis to test against both under- and overestimation of ES. This research is relevant due to the recent shift in the Basel’s Fundamental Review of the Trading Book from using Value-at-Risk as the leading

We consider all two times iterated Ito integrals obtained by pairing m independent standard Brownian motions. First we calculate the conditional joint characteristic function of these integrals, given the Brownian increments over the integration interval, and show that it has a form entirely similar to what is obtained in the univariate case. Then we propose an algorithm for the simultaneous simul