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With the growing popularity of audio and video communication services on the Internet, network operators, service providers and application developers are becoming increasingly interested in assuring that their services give the best possible experience to the users. Since real-time audio and video services are very sensitive to packet loss, latency and bandwidth variations, the performance of the

This paper presents views and observations about some current social problems in Poland. The problems introduced are theoretically discussed in reference to Poland’s entry in the European Union. The argumentation in this paper is performed in three stages. The first stage presents a model of Polish society throughout communism towards today’s society, were the weight is put on the Catholic Church’

In the Swedish crisis management system, the municipalities have a great responsibility. One part of this responsibility concerns preparing for crises by making risk and vulnerability analyses as well as plans for how to handle extraordinary events. Such preparedness planning involves municipal officials and consequently their conceptions of their organisations’ crisis management capabilities. Thi

Popular Abstract in English Insects, birds, bats and pterosaurs have all evolved the ability to fly, even though it requires a lot of energy. The advantage is obvious: one can move about vertically, to go where others cannot, find and access distant food sources or escape your predators. But flying is also a very fast mode of transportation, and when you count the amount of energy required to get Flight is an expensive form of locomotion, but also offers the ability to travel great distances at relatively low cost. Birds have developed various adaptations for optimizing flight performance. The main aim of this thesis is to identify how morphological variables in birds affect aerodynamic drag and flight performance. To this end I studied the aerodynamic performance of a jackdaw (Corvus mone

This study concerns fundamental analysis and predictive modelling of heat and mass transfer in frozen hamburger patties cooked in a double-sided contact fryer. Mathematical and physical models are formulated and further developed to enable improved understanding of the transport processes and reveal the influence of essential parameters. Prediction and analysis of practical situations with heating

X-ray diffraction methods have been used to study the crystal structure of different compounds, both organic and inorganic. The inorganic compounds were all synthesized by solid state reactions. A new compound, Re₄As₆S₃, was synthesized and its structure was solved by Rietveld methods. Re₄As₆S₃ is a cluster compound described by a

Esports is computer games played in a competitive environment, and analytics in this domain is focused on player and team behavior. Multiplayer Online Battle Arena (MOBA) games are among the most played digital games in the world. In these es, teams of players fight against each other in enclosed arena environs, with a complex gameplay focused on tactical combat. Here we present a technique for se

2015 markerar 100-årsminnet av armeniska folkmordet i Osmanska imperiet under första världskriget. Denna publikation är ett led i programmet för ihågkommandet av folkmordets 100-årsminne och innehåller de hundra mest förekommande frågorna. Boken innehåller korta sammanfattade svar till dessa frågor med källhänvisningar och referenser till andra litteratur som läsaren kan sedan använda för vidare f

This doctoral thesis examines labour market legislation concerning disability and work in Sweden, England and Germany. In order to provide increased access to the labour market for people with disabilities, all these countries have undertaken more of less far-reaching legislative measures over a number of decades, both in line with, or as a result of, general labour and employment legislation, but

Stuttering is one of the most common speech disorders. However, the etiology is poorly understood, and is likely to be heterogeneous. The aim of this thesis was to clarify causal mechanisms, focusing the brain. The project included theoretical development based on published data, and a broad approach of explorative studies and testing of hypotheses. The theoretical work focused the basal ganglia,