Results 81 to 90 of about 1,019,702 (312)

Redaktører og endringstrykk

open access: yesMagma, 2018
Mediebransjen er i stor endring. Dette er noe lederne i mediehusene kjenner på, ikke minst redaktørene. Kan all turbulensen rundt endring slite slik på redaktørene at de vurderer stillingen sin?
Stig Berge Matthiesen, Erik Wilberg
doaj   +1 more source

Nichtlineare Staubungsneigung binärer Schüttgutmischungen: Herausforderungen bei der Prognose Non‐linear dusting tendency of binary bulk material mixtures: Challenges in prognosis

open access: yesChemie Ingenieur Technik, EarlyView.
Aufgrund überlagerter oder konkurrierender Mechanismen sind relevante Wechselwirkungen bei der Staubung von Schüttgutmischungen komplex und nur unzureichend verstanden. Selbst für Mischungen aus umfassend charakterisierten Einzelkomponenten existieren keine belastbaren Modelle. In dieser Arbeit werden die Hürden bei der Prognose thematisiert.
David Horst   +2 more
wiley   +1 more source

Hidden Markov graphical models with state‐dependent generalized hyperbolic distributions

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract In this article, we develop a novel hidden Markov graphical model to investigate time‐varying interconnectedness between different financial markets. To identify conditional correlation structures under varying market conditions and accommodate shape features embedded in financial time series, we rely upon the generalized hyperbolic family of ...
Beatrice Foroni   +2 more
wiley   +1 more source

Eggdonasjon fra forbud til tilbudDen biopolitiske konfigureringen av en ny form for reproduktiv assistanse

open access: yesTidsskrift for Kjønnsforskning
Våren 2020 sa Stortinget ja til eggdonasjon etter årevis med debatt og politisk tautrekking. Men hva var det egentlig politikerne sa ja til? Og hva har det blitt til?
Ingvill Stuvøy
doaj   +1 more source

Rostock Modell

open access: yes, 2012
Kisiskolások természettudományos tudásának vizsgálata. A Rostock Modell egy olyan didaktikai program, amely a természettudományos problémamegoldás stratégiai elemeit tudatosan alkalmazza, ezáltal a kisiskolások természettudományos gondolkodásának ...
Malmos, Edina
core  

Partial identification with categorical data and nonignorable missing outcomes

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract Nonignorable missing outcomes are common in real‐world datasets and often require strong parametric assumptions to achieve identification. These assumptions can be implausible or untestable, and so we may wish to forgo them in favour of partially identified models that narrow the set of a priori possible values to an identification region.
Daniel Daly‐Grafstein, Paul Gustafson
wiley   +1 more source

VaR és koherens kockázati mértékek kapcsolata

open access: yes, 2006
Napjaink egyik legfontosabb problémája, elsősorban a bankok és biztosítók számára, a kockázat mérése. Korábban a legegyszerűbb eljárás ennek mérésére a szórás volt, de ez sok problémával járt, mivel többek között nem jól mutatta az esetlegesen felmerülő ...
Kereszturi, László
core  

Bayesian inverse ensemble forecasting for COVID‐19

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract Variations in strains of COVID‐19 have a significant impact on the rate of surges and on the accuracy of forecasts of the epidemic dynamics. The primary goal for this article is to quantify the effects of varying strains of COVID‐19 on ensemble forecasts of individual “surges.” By modelling the disease dynamics with an SIR model, we solve the ...
Kimberly Kroetch, Don Estep
wiley   +1 more source

Modified F‐tests for assessing tree radial growth under linear‐circular regression models with correlated errors: A comprehensive toolbox rooted in G. E. P. Box's theorems

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract Annual tree growth is a complex biological process. Modelling radial growth in the trunk by linear‐circular regression with one mode and correlated errors has allowed the definition and assessment of a preferred direction for 1 and 2 years. Here, modified F$$ F $$‐tests are presented for 3 years, 1 mode/year; 1 year, 2 modes for possible main ...
Pierre Dutilleul   +2 more
wiley   +1 more source

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