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Financial return series are often characterized by volatility clusters and a leptokurtic distribution. Many models that account for these properties exist, with the GARCH model proposed by Bollerslev (1986) being the most popular. This thesis explores an alternative model to capture the stochastic volatility in financial time series. The considered model is denoted the autoregressive gamma varianc
Functional MRI is a method used to map brain functionality, where the blood oxygen level (BOLD) imaging method is frequently used. Stimulation of neurons leads to an increase in energy and oxygen consumption and signal can be detected since oxygen changes the magnetic properties of the blood. In order to measure the signal variation, a fast pulse sequence is required. The purpose of this master th
Rubber materials, preferably referred to as elastomers, are used in a wide variety of engineering applications, thanks to their unique properties and characteristics. Fluid channels between the plates of Alfa Laval’s heat exchangers are sealed with different types of elastomers, called gaskets. Gaskets are exposed to both chemical, physical and mechanical stresses during their lifetime, affecting
Kött har varit ett av de vanligaste livsmedlen för mänskligheten i årtusenden och en viktig del av minnen kopplade till mat i olika kulturer, i förhållande till vardagliga livsmedelspraktiker. Numera har växtbaserat kött (PBM), som substitut för animaliskt kött (ABM), blivit populärt och vanligt bland konsumenter som bor i Nordeuropa. Detta av olika anledningar, däribland miljöproblem, djurskydd oMeat has been one of the common foods for humankind for many millenniums and an important part of food memory in different cultures in relation to everyday food practices. Nowadays, plant-based meat (PBM), as substitution of animal-based meat (ABM), has become popular and common among consumers living in Northern Europe with various motivations including environmental problems, animal welfare, and
Hidden on the plot of my summerhouse is a mountain glace overlooking the ocean. It is an enthralling place - a rock wall in the north and views towards the ocean in the south. A World War II trench is blasted into the rock, holding intimate rooms and layer upon layer of history. Here is narrow inclosure and vast openness, all at once. This mountain glace has been unused and forgotten during my who
Industry Foundation Classes (IFC) models from the Architecture, Engineering and Construction (AEC) -industries can contain information on building life-cycle entities. Urban planning and related domains are interested in data conversions between IFC and City Geography Markup Language (CityGML) because of this. However, the maintenance and versioning of CityGML life-cycle building data poses a s
Titel: “Jag har inte tagit en tjänst i dag som inte hade flexibel arbetstid!” Nivå och kurs: Kandidatuppsats i Service Management, KSMK65, VT19 Författare: Jonathan Ahlenius och Anna Syse Institution: Institutionen för Service Management och tjänstevetenskap, Lunds Universitet, Campus Helsingborg Handledare: Ulrika Westrup Studieobjekt: Medarbetare och deras upplevelser av flexibelt arbetsliv. Pro
To control an accelerating proton beam that travels close to the speed of light, a large number of beam diagnostic instruments are needed. One of the instruments that will be used at the accelerator of the European Spallation Source is a Non-invasive Profile Monitor (NPM). Once installed, this system will measure the transverse beam profile by imaging the fluorescent gas induced by the accelerated
All buildings need a foundation that supports the structure. Since a layer of soil is most often in between a structure and the bedrock, a soil-structure interaction between the foundation and the soil beneath occurs. This interaction is of great importance when it comes to predicting the sectional forces that will arise in a structure, along with the settlement that occurs. Therefore the need to
Problemområde: Tidigare forskning har visat att digitaliseringens utveckling har en stor påverkan på detaljhandeln. Det står klart att konsumtionsmönster har ändrats och att kunden har allt mer information och produktkunskap. De fysiska butikerna påverkas således, men hur butikspersonalens arbete ser ut med dessa nya förutsättningar finns det lite forskning på. Detta är något vi valt att studera v
Bellahøj is an area situated in the northwestern part of Copenhagen, Denmark, 5 km away from the inner city. Considering its architectural heritage, abundance of green capital, a wide variety of resident groups and a convenient location, it has a great potential for being a well-functioning neighbourhood, yet, there seems to be a missing piece of puzzle that causes Bellahøj to feel fragmented and
As the world’s fifth largest oil producer, and holder of the third largest proven oil reserves, Canada is poised to significantly impact future global carbon emissions. The present government, under the leadership of Liberal Prime Minister Justin Trudeau, is seeking to simultaneously position itself as a global climate leader while supporting the exploitation of Canada’s extensive bitumen oil rese
I denna uppsats presenterar jag kristallisationsåldrar, petrografi och geokemisk sammansättning för diabasgångar och en lagergång i östra och sydöstra Kaapvaal kratonen, Sydafrika. Dessa nya resultat ger mer exakta och pålitliga resultat än tidigare dateringar för diabaser tillhörande den s.k. Mashining gångsvärmen, vilka daterats till 2253 ± 45 and 2202 ± 74 Ma (Ma = miljoner år). De nya resultat
In Zambia recent socio-economic changes are placing an undue burden on the elderly. The burden is greatly associated with the HIV and AIDS epidemic, which has led to increased mortality of prime aged adults. As a result of this the elderly are called upon to shoulder the responsibility of the family, as they become the principal caregivers for young children. The traditional family roles are being
Vi rör oss ständigt i offentliga rum som på olika sätt är utformade för att påverka oss. Denna studie undersöker om människors känslor, syn på välbefinnande och syn på meningen med livet påverkas av att befinna sig i olika rum, i detta fall en kyrka (N=51) och ett köpcenter (N=51). Två verktyg, semantiska mått och Positive and Negative Affect Schedule (PANAS) används för att undersöka om det finnsWe are constantly moving between environments that are designed to affect us in one way or another. The purpose of this study is to investigate if the room has an influence on people's feelings, and their views on well-being and meaning of life. In a randomised experiment, the study explores whether there is a measurable difference in the participants’ feelings and thoughts in a church (n=51)
Understanding the patterns of evolutionary sequence divergence is fundamental for comparative analyses like phylogenetics or genomics. The rate at which the different sites of protein sequences evolve is multifactorial and the causes of variation among them are highly convoluted. Inference methods have been developed to estimate site-specific evolution rates from sequence alignments. Moreover, sev
There has been an increase in emergency preparedness measures aimed at individual households in the recent years in Sweden. The reason for this is that the Swedish government have deemed Swedish households' preparedness to be deficient and in need of improvement in order to better meet the risks of the modern society. It has been done through a number preparedness-raising campaigns. Risk commu
