Världen som vi känner den hålls samman av fyra grundläggande krafter. Gravitationskraften drar oss mot jorden och håller samman planeter, stjärnor och galaxer. Den elektromagnetiska kraften styr i princip allt annat vi upplever i vår vardag. Den starka kärnkraften håller samman protoner och neutroner i atomkärnor och binder de kvarkar som i sin tur bygger upp dessa partiklar, och den svaga kärnkraWe present a generalisation of the flavour-ordering method applied to the chiral nonlinear sigma model with any number of flavours. We use an extended Lagrangian with terms containing any number of derivatives, organised in a power-counting hierarchy. The method allows diagrammatic computations at tree-level with any number of legs at any order in the power-counting. Using an automated implementat

Kommuner och regioner kan ansöka om stadsmiljöavtal för att få ekonomiskt stöd för projekt som förbättrar framkomligheten för kollektivtrafik, cykel och gång. Projekten strävar efter mer hållbara stadsmiljöer med hänsyn till persontransporter och markanvändning. De första stadsmiljöavtalen beviljades 2015. Vid slutet av 2018 skulle projekten för de fyra första omgångarna vara avslutade. Det har tiThe urban environment agreements (stadsmiljöavtal) are a federal initiative through which Swedish municipalities and regions can apply for funding for projects that improve and innovate solutions for public transport, walking and cycling. These projects promise to plan for a more sustainable urban environment with regards to transportation and land use. The first urban environment agreements began

The aim of this thesis is to look at the attitude among governments and large corporations towards algorithms in general and with a special focus on artificial intelligens. This is done by examining five policy documents produced by three governmental branches and two private companies, all of them from Europe and the US. The assumption is that policy is one of the methods that those in power can

The Swedish construction industry is an example of a trade largely dominated by men. The main purpose of this study is to examine how said male dominance affects companionship among workers by analysing male homosociality and hegemonic masculinity. Based on six separate interviews with both male and female construction workers, this study explores the attributes that constitute an ideal constructi

A nocturnal jet is a low level air jet that is often seen at an altitude below 500 m during night time conditions. It can reach wind speeds of storm force and is thus of importance for aviation and also for transport of e.g. moisture and pollutants in the lower troposphere. By comparing wind speed measurements at 150 m at Hyltemossa research station (measured by ICOS Sweden) to the logarithmic win

With the ever increasing demand for higher data rates and reliability, efficient management of cellular networks remains a challenge. Among other technologies, fifth generation systems are expected to tackle this challenge using large electronically controllable antenna arrays operating in the time division duplex mode. In such systems, spatial beamforming is implemented with accurate channel esti

Bitumen och dess egenskaper har länge ansetts vara den viktigaste faktorn för en asfalts funktion. Egenskaperna som finns är hos bitumen är relativt enkla att kontrollera. Eftersom egenskaperna är relativt lätta att kontrollera och mycket kunskap redan finns om bitumen har dess egenskaper ansetts vara det som är avgörande gällande hur en asfaltbeläggning kommer att agera då den brukas. MätmetodernBitumen and its properties have long been considered the most important factor in the function of asphalt. The attributes that are present in bitumen are relatively easy to control. Since the attributes are relatively easy to control and a lot of knowledge already exists of bitumen its attributes are considered to be the decisive factor in how an asphalt coating will act when it is being used. The

Since the 1950s the Ngorongoro Conservation Area (NCA) has experienced several changes in land use policy. In the early 1990s the NCA’s policy was changed for the last time and the area became considered an experimental multiple land use system. This has resulted in conflict between the government and conservationist groups, who argued that allowing people to reside within the protected area will

Purpose: The purpose of this thesis is to describe sustainability reporting practices in Brazilian corporations listed on B3. Methodology: The investigation for thesis was based on a content analysis. Sustainability information was defined according to the GRI standards provided by the Global Reporting Initiative and measured through the number of pages, words, tables, figures and diagrams. Theore

In this study, the relationship between the returns of stock indices for renewable energy, oil & gas and technology is analysed in a European context with the use of a DCC GARCH model. Results show that conditional correlations peaked during four years following the 2008 financial crisis but has since then reverted to pre-crisis levels. Hedge ratios imply that renewable energy stocks can be sh

Detta examensarbete undersöker hur ett visuellt designverktyg för byggande av användargränssnitt till iOS, Android, och webben kan konstrueras. Även fast det finns en hel del verktyg för att designa och bygga mobil- och webbappar, så finns det i nuläget inga visuella designverktyg för att bygga en gemensam app för alla tre plattformar. Utöver detta, så undersöker arbetet potentiella lösningar till This thesis investigates how a visual design tool for building cross-platform application interfaces for iOS, Android, and web can be constructed. While there are plenty of tools for building and designing mobile and web apps, there are currently no visual design tools for building cross-platform apps for all three platforms. Beyond this, the thesis explores potential solutions for problems relat

Bus Rapid Transit (BRT) är en benämning på ett högkvalitativt kollektivtrafiksystem som utvecklades under mitten av 1900 – talet och blev känt efter att det framgångsrikt implementerades i staden Curitiba i Brasilien. I Sverige används BRT som ett komplement till övrig kollektivtrafik medan det i stora städer runt om i världen fungerar som stommen i kollektivtrafiksystemet. För BRT i Sverige finnsBus Rapid Transit (BRT) is a name for a high – quality public transport system that was developed in the middle of the 19th century and became known after it was successfully implemented in the city of Curitiba in Brazil. In Sweden, BRT is used as a complement to other public transport, while in large cities around the world it functions as the frame of the public transport system. For BRT in Swed

What do customers want from an energy supplier application? To meet the increasing digitalization of the society, the energy supplier Kraftringen strives to create a new application that will match the customer’s needs and Kraftringen’s vision. This thesis was performed in order to present a user interface proposal of Kraftringen’s new application, to improve the user experience. The goals include

Latin America is and has been one of the most unequal regions in the World. Since the end of the Second World War, income inequality has been influenced by the high dependency on exports of agricultural products and raw materials, an early deindustrialization and the rise of low productivity service sectors. In this regard, this study aims to understand the impact of this structural change on inco

Exponering av polyklorerade bifenyler (PCB) kan orsaka hälsoeffekter hos människor. PCB från byggnadsmaterial har visats kunna läcka ut i inomhusluften. Det finns dock inga riktvärden för PCB i inomhusluften i Sverige. Studiens första syfte är att sammanställa och analysera riktvärden från andra länder. Studiens andra syfte är att uppskatta av hur många byggnader i Sverige (magnitud) som kan ha ko

Increase of urbanization and climate change are one of the factors that have been highlighted to influence the change of urban runoff hydrograph. This is resulting in an increase in peak flow within an urban watershed. Downstream flooding is the main problem that arises. To solve this, the sustainable urban drainage system techniques are adopted for reducing peak flow and increase baseflow. This t

The personal is still political as heterosexual romantic relationships are permeated by gender power dynamics. Previous research has shown that men tend to exploit women’s love, appropriate their care, and not reciprocate. This study looks at the impact of feminist values on these established patterns in Switzerland, a country known for being one of the last in western Europe to give women the rig

In this thesis, we consider a 2-Higgs-doublet model with a gauged Froggatt-Nielsen mechanism as an extension of the standard model. We assume that (i) the theory at the electroweak scale is the low energy limit of a theory defined at a scale $\Lambda_{FN}$ (ii) the Yukawa couplings at $\Lambda_{FN}$ are generated by the Froggatt-Nielsen mechanism. The first assumption is enforced by requiring that

Syftet med denna studie var att undersöka hur homosexuella män upplever surrogatmoderskap samt hur de påverkas av samhällets syn på surrogatmoderskap. Jag tar i detta sammanhang upp förarbetet - Olika vägar till föräldraskap (SOU 2016:11) och hur rapporteringen från olika media påverkar parens inställning i surrogatmoderskapsfrågan. Materialet i denna studie består av kvalitativa intervjuer med ho