165 research outputs found
Analyse der Kitagestehungskosten im Land Berlin im Jahr 2015
No full textANALYSE DER KITAGESTEHUNGSKOSTEN IM LAND BERLIN IM JAHR 2015
Analyse der Kitagestehungskosten im Land Berlin im Jahr 2015 / Volf, Irina (Rights reserved) (-
Random Processes in Reliability Analysis
No full textTitle: Random Processes in Reliability Analysis Author: Kamil Chovanec Department: Department of Probability and Mathematical Statistics Supervisor: Doc. Petr Volf, CSc. Supervisor's e-mail address: [email protected] Abstract: The thesis is aimed at the reliability analysis with special em- phasis at the Aalen additive model. The result of hypothesis testing in the reliability analysis is often a process that converges to a Gaussian martingale under the null hypothesis. We can estimate the variance of the martingale using a uniformly consistent estimator. The result of this estimation is a new hypothesis about the process resulting from the original hypothesis. There are several ways to test for this hypothesis. The thesis presents some of these tests and compares their power for various models and sample sizes using Monte Carlo simulations. In a special case we derive a point that maximizes the asymptotic power of two of the tests. Keywords: Martingale, Aalen's additive model, hazard function
Náhodné procesy v analýze spolehlivosti
No full textNázev práce: Náhodné procesy v analýze spolehlivosti Autor: Kamil Chovanec Katedra: Katedra pravděpodobnosti a matematické statistiky Vedoucí diplomové práce: Doc. Petr Volf, CSc. e-mail vedoucího: [email protected] Abstrakt: Práce je zaměřena na analýzu spolehlivosti se zvláštním důrazem na Aalenův aditivní model. Při testování hypotéz v analýze spolehlivosti často získáváme proces, který za platnosti hypotézy konverguje ke Gaus- sovskému martingalu, jehož rozptyl umíme odhadnout rovnoměrně konzis- tentním odhadem. Dostáváme se tak vlastně k nové hypotéze o procesu získaném testováním původní hypotézy. Existuje více způsobů, jak tuto hy- potézu testovat. V práci jsou představeny některé z nich a síla těchto testů je pomocí Monte Carlo simulací porovnána pro různé modely a velikosti výběrového souboru. Ve speciálním případě je odvozen bod, který maxima- lizuje asymptotickou sílu dvou testů. Klíčová slova: Martingal, Aalenův aditivní model, riziková funkce 1Title: Random Processes in Reliability Analysis Author: Kamil Chovanec Department: Department of Probability and Mathematical Statistics Supervisor: Doc. Petr Volf, CSc. Supervisor's e-mail address: [email protected] Abstract: The thesis is aimed at the reliability analysis with special em- phasis at the Aalen additive model. The result of hypothesis testing in the reliability analysis is often a process that converges to a Gaussian martingale under the null hypothesis. We can estimate the variance of the martingale using a uniformly consistent estimator. The result of this estimation is a new hypothesis about the process resulting from the original hypothesis. There are several ways to test for this hypothesis. The thesis presents some of these tests and compares their power for various models and sample sizes using Monte Carlo simulations. In a special case we derive a point that maximizes the asymptotic power of two of the tests. Keywords: Martingale, Aalen's additive model, hazard function 1Department of Probability and Mathematical StatisticsKatedra pravděpodobnosti a matematické statistikyFaculty of Mathematics and PhysicsMatematicko-fyzikální fakult
One chapel, one poet: the story of Jiří Volf
No full textAnna Luňáková: One chapel, one poet: the story of Jiří Volf Abstract The aim of this thesis is to write a monograph of Jiří Volf, a previously unknown Czech poet and exile who died in Toulouse, France in 1993. It achieves this through the testimonies of his colleagues and friends, especially in the context of the cultural center La Chapelle in Toulouse, which is currently still working with Volf's legacy. Last but not least, this work presents the discovered poetic works of Volf, which it presents in Czech translation and with bibliographical data. The biographical, bibliographical and testimonial material treated here stimulates theoretical reflection on the genre of historiography in general, with a particular focus on the question of life- writing and what is called metabiography, which critically reflects on the possibility of writing biography. In relation to the life of the author under study, the thesis also comments on the concept of exile and related phenomena such as writing in a language other than one's mother tongue, the question of identity and nomadism. In its entirety, the work is a biography of a lost Czech poet, which also presents his literary work and a critical insight into the context of his life
Season 7 Episode 18: Giving Forgiveness
No full textIt’s not always easy to trace the motives for the gifts we give. Where in our hearts do they come from? Might we look there too for one of the greatest gifts--that of forgiveness for a harm done? January Series guest and theologian Miroslav Volf, Director of the Yale Center for Faith and Culture at Yale Divinity School and author of Free of Charge: Giving and Forgiving in a Culture Stripped of Grace, explores the anatomy of forgiveness with host Shirley Hoogstra. Episode #718
Možnosti se stabilními distribucemi
No full textNázev práce: Možnosti se stabilními distribucemi. Autor: Andrea Karlová Katedra: Katedra pravděpodobnosti a matematické statistiky Vedoucí disertační práce: Doc. Petr Volf, CSc. Abstrakt: Stabilní rozdělení jsou úzce spojena s problematikou konvergence součtu nekonečných řad nezávislých náhodných veličin. Hustoty těchto pravděpodobnostních rozdělení jsou dobře zkoumána za použití integralních transformací. Nejprve shrneme známé výsledky odvozené pomocí Fourierovi transformace, dále se zaměříme na méně častou Mellinovu transformaci. Pomocí této budeme vyšetřovat rozdělení součinu dvou nezávislých stabilních náhodných veličin. Ve čtvrté kapitole zobecníme model Louise Bacheliera za pomoci stabilních rozdělení a budeme diskutovat prak- tické aspekty spojené s finančními deriváty. Klíčová slova: stabilní rozdělení, Mellinova transformace, součin nezávislých náhodných veličin, levy model, samoshodné plochy implikovaných volatilit 1Title: Options under Stable Laws. Author: Andrea Karlová Department: Department of Probability and Mathematical Statistics Supervisor: Doc. Petr Volf, CSc. Abstract: Stable laws play a central role in the convergence problems of sums of independent random variables. In general, densities of stable laws are represented by special functions, and expressions via elementary functions are known only for a very few special cases. The convenient tool for investigating the properties of stable laws is provided by integral transformations. In particular, the Fourier transform and Mellin transform are greatly useful methods. We first discuss the Fourier transform and we give overview on the known results. Next we consider the Mellin transform and its applicability on the problem of the product of two independent random variables. We establish the density of the product of two independent stable random variables, discuss the properties of this product den- sity and give its representation in terms of power series and Fox's H-functions. The fourth chapter of this thesis is focused on the application of stable laws into option pricing. In particular, we generalize the model introduced by Louise Bachelier into stable laws. We establish the option pricing formulas under this model, which we refer to as the Lévy Flight...Matematicko-fyzikální fakultaFaculty of Mathematics and Physic
Hospitality to the stranger : the experience of Christian Churches in the resettlement of African refugees to the United States
No full textThis thesis explores the role of constituent congregations of Church World
Service (CWS) in the process of resettling refugees in the U.S. It is based upon case
studies built around a series of interviews conducted with members of three
congregations who sponsored African families for resettlement in Minnesota.
Reflecting upon the experiences of those interviewed, the discourse considers the
efficacy of refugee resettlement as a means for Christian congregations to extend
hospitality to strangers.
The thesis explores the broader theme of Christian hospitality as a particular
activity of the church. Hospitality is approached using the scriptural theme of
welcoming the stranger as it is taken up by contemporary theologians. Christine Pohl,
author of Making Room, is regarded as a leading authority on hospitality. Much of
her research is based on the work of Jean Vanier, founder of the L’Arche
communities. This thesis suggests that Pohl’s treatment lacks both a usable
definition of hospitality and a sufficient theological framework in which to locate it.
In redressing these omissions, Pohl’s work is examined in light of Vanier in order to
establish an understanding of what comprises a particularly Christian approach to
hospitality.
Finally, the thesis proposes that as hospitality is understood as an act instituted
by the person of Christ and imbued by the Holy Spirit, it is to be considered an act
constitutive of the Church itself. Therefore it is an act necessary to the life of the
Church as the Body of Christ. While contemporary research engages with hospitality
as such an act, little work has been undertaken how it can be applied at the
congregational level. CWS’s model of refugee sponsorship provides congregations
with the tangible means by which they may offer hospitality to strangers
National Museum Library in the First Half of 20th Century by Eyes of Josef Volf
No full textJosef Volf's diaries are for now unprocessed und unused source for research of life scientific and cultural elites in period of The First Czechoslowak Republic, for discovery the way of working of the National Museum Library and last but not least for familiarization with personality of her director. Author writes about ordinary events, everyday problems, relations with his colleagues and withal he attentively files his publishing activity. This thesis is occupied with last two parts of diary, which charts life of Josef Volf close before his death. From rows we get the knowledge about important personalities of public life and also about no longer known regional librarians, archivists or researchers. The goal is to detect as much of these names and events mentioned here as possible. The tendency is then the reconstruction of working of one cultural institution in the contemporary Czechoslowakia
Options under Stable Laws
No full textTitle: Options under Stable Laws. Author: Andrea Karlová Department: Department of Probability and Mathematical Statistics Supervisor: Doc. Petr Volf, CSc. Abstract: Stable laws play a central role in the convergence problems of sums of independent random variables. In general, densities of stable laws are represented by special functions, and expressions via elementary functions are known only for a very few special cases. The convenient tool for investigating the properties of stable laws is provided by integral transformations. In particular, the Fourier transform and Mellin transform are greatly useful methods. We first discuss the Fourier transform and we give overview on the known results. Next we consider the Mellin transform and its applicability on the problem of the product of two independent random variables. We establish the density of the product of two independent stable random variables, discuss the properties of this product den- sity and give its representation in terms of power series and Fox's H-functions. The fourth chapter of this thesis is focused on the application of stable laws into option pricing. In particular, we generalize the model introduced by Louise Bachelier into stable laws. We establish the option pricing formulas under this model, which we refer to as the Lévy Flight..
Nohrstedt, Stig A. (ed.) (2010): Communicating risks: Towards the threat society? Gothenburg, Sweden: Nordicom
No full textBook revie
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