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Analyzing Call Center Data - A Case Study

Statistical modelling of certain phenomenon to extract patterns is a common theme in data analysis. Applying this precise theme to call center data is riddled with many practical con- cerns and has lead to development of new concepts and theories in stochastic processes. In this thesis we intend to study specic call center dataset with the objective of studying patterns in call arrivals over a per

Sverige och kärnvapen

Today, Sweden is well-known as a nation with a strong voice for non-proliferation and disarmament. This has not always been the case though, during the 1950´s the country was on its way to develop nuclear weapons of its own. This paper seeks to examine how this shift of direction happened during the 1960´s, and how it has affected Swedish security and defence policy as of today. This paper aims t

Är det annorlunda nu?

The purpose of this paper is to compare the posture and operations of Russian nuclear submarines compared to their Soviet predecessors, in the context of nuclear weapons. By conducting a case study comparing the Soviet and Russian nuclear doctrines and their application, limited to the submarine part of the Nuclear triad, and using the Organizational logics model as the method and Waltz’s 3rd imag

Förvaltningen och strategin: Nationella säkerhetsstrategins implementering hos svenska myndigheter

In January 2017 the Swedish Prime minister announced at a conference in Sälen that for the first time in history Sweden now had a National Security Strategy and it was now to be implemented. In Sweden, ministers in the Cabinet are not allowed by the constitution to directly influence the work of Sweden’s governmental authorities. The institutions of the government are independent in the execution

Eston Kohver - En bricka i vilket spel?

The abduction, or arrest as it´s referred to in Russia, of Eston Kohver on the border between Estonia and Russia in September 2014 caused many nations in the western world to condemn the practices of both the Russian counter-intelligence directorate and the Russian justice system. The aim of this thesis is to try to uncover why Russia acted as it did by applying Graham Allison and Philip Zelikows

Det nationella försvaret som försvann

Ever since the end of the Cold War, there has been a differentiated view of the need for a national defense between Sweden and Finland. During the 2000s, Finland has had a strong national defense in relation to its spruce counttries, while Sweden gradually phased out its national defense capabilities. The purpose of this case study is to identify the reason why the two countries have distinguished

Säkerhetspolitik och försvarssamarbete ur ett svenskt perspektiv

This study thesis Swedish national defence cooperation during the time of the Cold War until today within the spectrum of foreign and security policy. The question to be answered are how Sweden has interact with affecting circumstances regarding national security when deciding type of defence cooperation, and how has Swedish defense cooperation evolved into what it is today. The consequences dur

Evaluating fulvestrant-resistance in HCC1428 breast cancer cells

Overcoming drug resistance in breast cancer Breast cancer remains the most common malignancy in women worldwide with over 2 million newly diagnosed cases in 2018, accounting for almost a quarter of all cancer cases in women. More than 70% of breast tumors depend on estrogen for survival and growth, which led to the development of targeted therapy against the associated cellular hormone receptor

Volatility of Bitcoin in a European Context

In 2009, Bitcoin was introduced to the world. Today, ten years later, there are still gaps in the research of how to model the cryptocurrency. In this thesis, the capacities of different volatility models to capture the high volatility of Bitcoin returns are investigated. The models used are GARCH-type models: GARCH(1,1), IGARCH(1,1) and GJR-GARCH(1,1). Jumps, or outliers, are also detected and fi

HOW TO SEPARATE MICROSCOPIC BRAIN TISSUES IN MULTIDIMENSIONAL CORRELATION MRI? A STUDY ON THE OPTIMAL DESIGN OF 5D DIFFUSION-RELAXATION BINS

Med hjälp av MRT så är det möjligt att undersöka en hjärna utan att behöva använda skadlig strålning. Genom att korrelera vattenmolekylers diffusion med dess R2 värde så är det möjligt att separera olika sorters vävnad. Detta då dessa parametrar beror på den kemiska sammansättningen samt strukturen på omgivningen. Men för att kunna separera vävnaderna och visualisera dem så måste datapunkterna somMRI can be used as an non-invasive method to map the brain. By correlating diffusion with relaxation it is possible to separate different tissue kinds such as white matter, grey matter and free water. In this work we look at how to bin the data to best separate the tissues. By modifying the bin limits in Diso, Dperp / Dparallel, \DDelta and R2 it will be shown that there is not a single optimal

Evolutionary dynamics and mating behaviour associated with female-limited colour polymorphisms in the damselfly genus Ischnura

Female-limited colour polymorphisms provide interesting examples of intraspecific genetic diversity but, in most polymorphic taxa, we know little about the macroevolutionary origin and subsequent history of polymorphism during diversification. The damselfly genus Ischnura includes many species with multiple, heritable female colour morphs. The evolutionary origin of polymorphism in this clade is u

Finite element modelling of strained nanowire heterostructures

When two materials with different lattice constants are grown together, this generates stress between them, and therefore strain. This strain causes them to have different thermal and electrical properties, and this is especially important on the nanoscale where changes have large impacts. This project is intended to see if COMSOL can be used as a tool to model how materials respond to lattice mi

Increasing the use of recycled textiles through business models and policies

The current textile industry is among the most polluting industries and actions should be taken to decrease these negative impacts. One issue that should be addressed is the increasing amount of textile waste. Post-consumer textiles are often incinerated or downcycled due to many factors. In order to move towards a circular clothing system, businesses and policy makers play a major role. The purpo

Upplevelser av stress - en intervjustudie med personer som har hög respektive låg samvetsgrannhet

Studiens syfte var att undersöka upplevelsen av stress hos individer med hög respektive låg grad av samvetsgrannhet. Semistrukturerade intervjuer genomfördes med sex deltagare som skattade högt respektive lågt på samvetsgrannhet. Materialet analyserades med tematisk analys och åtta teman identifierades. Dessa teman var: stressorer, stressreaktioner och stressymptom, coping, krav och kontroll, behoThe aim of this study was to investigate the experience of stress in individuals with high respectively low degree of conscientiousness. Semistructured interviews were conducted with six people who estimated high respectively low on conscientiousness. The material was analyzed using a thematic analysis and eight different themes were identified. The eight themes were: stress origins, stress reacti

Excess elasticity in the financial system? A study of how macroeconomic variables affect stock prices

Asset prices have had larger and more rapid increases since 1980 when compared to the post-war period, especially compared to the Bretton Woods period. In this thesis we test whether the excess elasticity view provides a plausible explanation for this change. The excess elasticity view, put forth by Borio and Disyatat (2011) and Borio and White (2003), argues that the financial system has become m

Ett urfolk i minoritetspolitiken - Samisk opposition i revideringen av Lag (2009:724) om nationella minoriteter och minoritetsspråk

This essay is a discourse analysis focused on the revise of the swedish minority law (SFS 2009:724) that began with a committee directive in 2016 and resulted in a change of the law in January 2019. The purpose of the analysis is to examine whether an ongoing conflict surrounding the indigenous people Saami and their position as a minority in Sweden takes place in the revise, and if so, how the Sa

Selection on proteins during the transition to multicellularity - A study on volvocine algae

Selection on proteins during the transition to multicellularity The evolution of unicellular organisms into more complex, multicellular groups has been one of the most important transitions in life. One way of studying the molecular mechanisms involved in this transition is to quantify changes in proteins that have functions proposed to be important in the formation and coordination of multicellu

Målstyrning under produktionsskedet

Syftet med studien är att utvärdera hur arbetet med målstyrning kan förbättras under produktionsskedet i byggbranschen. Studien har gjorts som en kvalitativ fallstudie baserat på tre byggprojekt i ett av Sveriges största byggföretag. Genom att intervjua anställda med olika roller i projekten samt ett antal högre chefer har olika arbetssätt och förhållningssätt kunnat utvärderas. Med bakgrund av de

Utvärdering och pilotundersökning av vägledning för kontinuitetsplanering inom hälso- och sjukvården, Region Skåne

Framtagandet av kontinuitetsplaner är inte systematiskt inom hälso- och sjukvården i Region Skåne. Därför har en vägledning utvecklats för att underlätta framtagandet av reservrutiner. Först utvärderades om vägledningen innehåller identifierade rekommendationer för kontinuitetsplanering. Därefter genomfördes en pilotstudie på en vårdavdelning för bestämning av dess användarvänlighet och användbarh

Monogenic causes of neurological movement disorders - a case study of a family with hereditary ataxia

Monogenic causes of movement disorders. A case study of a family with ataxia. Movement disorders constitute a group of neurological conditions and syndromes which mainly lead to abnormal motor functions. In case of ataxias, numerous of underling etiologies have been elucidated. Hereditary ataxias cannot be classified easily, due to the heterogeneity and nondistinct phenotypes. For autosomal reces