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An increasingly competitive environment, technological advancements and globalisation are a few of the factors placing higher demands on today’s company activities, e.g. development, production and distribution processes. Company activities have hereby become a complex system, even more so if one company is seen as part of a network of companies. The aim of this article is to present and elaborate
Popular Abstract in Swedish Denna avhandling handlar om modeller inom partikelfysik, vilka beskriver naturens minsta beståndsdelar. En atom består av en kärna och elektroner. Kärnan består av protoner och neutroner, vilka i sin tur består av kvarkar och gluoner. Dessa partiklar samt hela den flora av andra partiklar som bara går att skapa vid experiment är vad som studeras inom partikelfysiken. DThis thesis considers models for describing high energy particle collisions. Existing phenomonological models are modified and new implementations made in order to achive a better description of states with several hard jets. To predict final state hadrons, parton showers are used together with pheonomenological hadronization models. These models describe a wide range of observables, but have the
The infrastructure for 3G has been under development in Sweden since late 2000. Following from the so called beauty contest four operators within three years were to build competing systems to cover 99,98 percent of the population by the end of 2003, giving the administrative system an extreme challenge. Issues widely debated has been the alleged hazardousness of the electromagnetic radiation from
This is a study of the formation of the ‘Book’ of Psalms that attempts to provide answers to two fundamental questions: “how?” and “why?”. The first relates to the diachronic growth of the collection (how are these processes to be reconstructed, and on what grounds?), while the second relates to questions of purpose (to what end are psalms being juxtaposed in a collection?). Proceeding from a rev
Seismological studies have revealed that a complex texture or heterogeneity exists in the Earth's inner core and at the boundary between core and mantle. These studies highlight the importance of understanding the properties of iron when modelling the composition and dynamics of the core and the interaction of the core with the lowermost mantle. One of the main problems in inferring the compositio
Popular Abstract in Swedish En vän till mig berättade hur hon hade köpt en färgglad t-shirt vid en resa till Indien. Första gången hon hade den på sig började det att ösregna och ett par minuter senare fanns det snopet nog mer färg i de kringliggande vattenpölarna än i tyget. Lyckligtvis har de flesta färger idag bättre kvalitet än så. De färger som används inom textilindustrin är utvecklade för aConsiderable amounts of water and chemicals are used in the textile industry, and the presence of dyes in the wastewater is a problem of environmental concern. Synthetic dyes are designed to resist light, water and chemicals to improve the quality of the textiles; however, these properties also contribute to their persistence in the environment. The existence of wastewater treatment plants in conn
Anorthoscopic vision: Designing and Sensing the Future Tom O’Dell As a means of thinking about the future and issues of uncertainty, I would like to take my point of departure in a project I completed a few years ago (O’Dell 2013) concerning plans to develop a huge particle sciences facility in Lund, called the European Spallation Source (ESS). I was the only ethnologist working with a team of 1
The purpose of this paper is to define and discuss the core-customer concept. This concept examines how a company develops its operations around a single or only a few customers. The customer steers what products and services the supplier develops, which means that it is the customer that dictates the supplier's operations. The core-customer concept may be one method for designing a company's oper
This paper addresses the antenna subset selection in multiple antenna systems with full diversity transmission, for both correlated and uncorrelated channels. To reduce the severe performance degradation of traditional selection/combining schemes, we propose to embed phase-shift-only operations in the RF chains before selection. The resulting system shows a significant advantage in utilizing the m
An increased use of the Internet has created new business opportunities. The development of e-commerce has, however, been crippled by a limited understanding of logistics and customer needs. This paper sets out to highlight those issues in pharmaceutical retail where added services should be created through e-commerce. The research is based upon a case study covering the pharmaceutical system in S
High-speed laser diagnostics was utilized for single-cycle resolved studies of the fuel distribution in the combustion chamber of a truck-size HCCI engine. A multi-YAG laser system consisting of four individual Nd:YAG lasers was used for planar laser-induced fluorescence (PLIF) imaging of the fuel distribution. The fundamental beam from the lasers at 1064 nm was frequency quadrupled in order to ob
Member States of the EU have authority to set up national tax systems in line with their national policies. While Member States maintain sovereignty over direct taxation, this power is constrained by EU law, including the State aid rules. National tax rulings can sometimes result in certain undertakings gaining advantages. The EU has rules regulating aid measures, to combat distortion of competiti
The chirality-flow formalism has proven to simplify the calculations of helicity amplitudes to the extent that the matrix element corresponding to a Feynman diagram can immediately be written down. It has also shown to speed up the computation of scattering amplitudes through numerical implementations in MadGraph5_aMC@NLO. In this thesis we investigate if automated computation of amplitudes can be
On the 4th of July 2024 the Swedish government decided to assign the Agency for Digital Government and the Swedish Authority for Privacy Protection to give guidelines for increasing use of generative artificial intelligence in the public sector. One year later, on the 10th of September 2025, the government released their budget proposition for the year 2026. Here the National Archives of Sweden (N
The geopolitical competition between the United States and China over artificial intelligence has emerged as one of the defining dynamics of the 21st century. Yet despite a growing body of work on AI innovation, a structured and recent sectoral comparison of the conditions organizing AI development in each country remains underexplored. This thesis addresses that gap by applying Malerba's (200
This thesis consists of three self-contained papers that study the role of culture in economics by examining how culture shapes responses to policies, how public interventions influence cultural identity, and how cultural persistence affects economic behavior and policy outcomes. The first chapter examines the political consequences of symbolic changes to public space in Spain, focusing on the ren
BackgroundLongitudinal data on weight change, its timing, and the age of obesity onset in relation to cause-specific mortality are limited.MethodsFrom ODDS, a nationwide pooled cohort study in Sweden, we included 258,269 men and 361,784 women with at least three weight assessments between ages 17 and 60, collected in 1963–2015. We applied linear mixed-effects models to estimate weight trajectories
This article explores the lived contradictions entailed in being a young member of the Chinese Communist Party (CCP) today. The focus is on how political and existential issues intersect. It explores partymembership as a strategy for personal mobility among Beijing elite university students by providing an ethnographic account of the quandaries of two young CCP members. Even though one student is
The unquenchable thirst for bandwidth to support next-generation wireless systems is increasingly bringing D-band into the spotlight. This work proposes a scalable D-band patch antenna that features both coplanar and stacked parasitic patch structures. By leveraging inter-patch coupling, different coplanar parasitic elements are excited across different frequency bands, enabling multi-mode operati
In multi-user multiple-input multiple-output (MU-MIMO) systems, the non-linear behavior of the power amplifiers (PAs) may cause degradation of the linear precoding schemes dealing with interference between user equipments (UEs), e.g., the zero-forcing (ZF) precoder. One way to minimize this effect is to use digital-pre-distortion (DPD) modules to linearize the PAs. However, using perfect DPD modul
