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How do fires affect the railway? - A Swedish study on what factors influence fire risk and how it affects railway traffic.

Några utav de vanligaste orsakerna till att en brand uppkom mellan 2010 och 2020 var ”bränder som medvetet startades” samt ”bränder som startats av gnistor vid tågbromsning”. Av den totala mängden bränder som uppkom stod tågbromsning för cirka 1.1 % av dem och den anledning som stod för absolut störst andel bränder var ”bränder startade utav okänd anledning” vilket stod för 43%. KlimatförändringaForest fires can start in a variety of ways. "Fires started deliberately" and "fires started by sparks generated from a train braking" were two of the most common causes of fires between 2010 and 2020. Train braking accounted for 1.1% of all fires, whereas fires created by unknown reasons accounted for 43% of all fires. The climate is expected to change in the future, and sinc

Ökade kostnader i fastprisentreprenader till följd av onormala prisökningar på material

In recent years, the construction industry has faced unprecedented challenges related to abnormal price increases on building materials, which have not been experienced since the 1970s oil crisis. These price hikes have been caused by a various of factors, including the COVID-19 pandemic, war in Europe, trade sanctions and high energy prices. Consequently, fixed-price contracts face the risk of si

Socialsekreterarna och de digitala verktygen - Gränsarbete inom ekonomiskt bistånd

Digital tools are part of the everyday lives of social workers. In the political discourse surrounding the digitalization of social services, this development tends to be described as a naturally occurring force of change. What seems less prominent is how digitalization also carries values and ideas designed within the framework of a social and political context, digital tools are consequently not

Market Performance in the Nordic Electricity Market: An Analysis of Market Power during Energy Market Turbulence

This paper analyzes the existence of market power on the Nordic electricity market between 2018-2022, and if the energy market turbulence caused by covid-19, and later deepened following the war in Ukraine affected producers' bidding behavior. Market power was tested using Cournot assumptions to see if producers withheld output strategically when demand was more inelastic. Auction data on syst

Assessment Of Plastic Degrading Abilities Of Autotransporter Domains Containing Esterase On Synthetic Polyesters

In today's world, plastic pollution has become a widespread problem with plastics in oceans, rivers and forests. The use of plastic has increased rapidly since it first was developed and that is because of its advantageous abilities. This scientific report focuses on the evaluation of two enzymes known as "autotransporter domains containing esterase" for its ability to degrade a vari

Kan variabler avseende tal och språk vid 7 års ålder förutsäga läsförmågan vid 10 års ålder hos barn med unilateral läpp- käk- gomspalt?

Sammanfattning Syfte: Studiens syfte var att öka kunskapen om relationen mellan tal och språk vid 7 års ålder och läsförmågan vid 10 års ålder hos barn med unilateral läpp- käk-och gomspalt (LKG). Metod: Det var 59 barn i 7 års ålder som testades med Bussagan, FONOLEK och SVANTE av logopederna vid de olika LKG-centra. Från Bussagan beräknade vi yttrandemedellängd i ord, grammatisk komplexitet, lexAims: The aim of this study was to increase knowledge about the relationship between speech and language at age of 7 and reading ability at age 10 in children with unilateral cleft- lip and palate (CLP). Methods: Participants were 59 children aged 7 who were assessed with the Bus story test (BST), FONOLEK and SVANTE. From the Bus story test we calculated mean length of utterance in words, grammati

Improving Product Level Sensing in Filling Tubes

Detta examensarbete undersöker möjligheten att förbättra produktnivåmätningen i en av Tetra Paks fyllnadsmaskiner, eftersom den nuvarande lösningen inte detekterar den med den önskvärda precisionen, samt mätområde. Idag används en magnetisk flottör tillsammans med 16 separata kapacitiva sensorer. Problemet med detta är att förpackningar blir avvisade på grund av en felaktig mängd produkt. Detta skThis thesis examines the possibility to improve the product level sensing in one of Tetra Pak’s filling machines, because the current solution does not detect this with the desirable precision, as well as measuring range. Today, a magnetic float is used together with 16 separate capacitive sensors. The issue with this is that packages get rejected due to a faulty amount of product. This occurs bec

Visualisering av signaler från delay line detektor

MAX IV laboratoriet ger forskare möjlighet att analysera och studera material på atomnivå genom att använda högenergetiska ljusstrålar. Synkrotronljusanläggningen MAX IV genererar intensiva strålar av elektromagnetisk strålning, inklusive röntgenstrålning. Delayline detector DLD 8080 (DLD) är ett instrument som används för att detektera intensiteten och positionen av till exempel röntgenstrålningThe MAX IV laboratory provides the opportunity to analyze and study materials at the atomic level by using high-energy light steels. The synchrotron radiation facility MAX IV generates intense beams of electromagnetic radiation, including X-rays. Delayline detector DLD 8080 (DLD) is an instrument used to detect the intensity and the position of, for example, X-rays. This instrument consists of a

”Det kändes mer som att vi var ett band …” : Elevperspektiv på kamratrespons i ensembleundervisning på gymnasiet

Intresset för att genomföra denna studie springer ur våra tankar från två områden – dels positiva erfarenheter av kamratrespons inom andra skolämnen än musik, dels positiva erfarenheter av att spela i band där feedback mellan medlemmar spelar en central roll. Studien tar avstamp i två frågeställningar: vilka faktorer påverkar kvaliteten av kamratrespons i ensemble ur ett elevperspektiv och vilka eThe interest in conducting this study arises from our thoughts and findings from two main areas. Firstly, our positive experiences from peer response in other subjects than music, and secondly, our positive experiences from playing in bands where the feedback between members plays a key role. The study starts with two questions: what factors affect the quality of peer response in ensemble lessons

Lokalisering av framtidens stålproduktion

Stålindustrin är den industrisektor som har högst utsläpp i världen. Ståltillverkning tillskrivs cirka 8 % av världens totala C02-utsläpp. Från den utgångspunkten är behovet av djup avkarbonisering av stålindustrin är uppenbart. Det mest gynnsamma alternativet för att fasa ut fossila bränslen från produktionen av stål är att övergå till ståltillverkning från grönt väte. I denna rapport undersöks kThe steel industry is the most emitting industry sector in the world. Steelmaking attributes to around 8 % of the world’s total CO2 emissions. From that standpoint the need for deep decarbonization in the steel industry is evident. The most viable option for removing fossil fuels from the production of steel is to move to steelmaking from green hydrogen. In this report comparative advantages for g

How Venture Capital Could Use Large Language Models to Screen Sustainability Impact Startups

This study investigates the potential of large language models (LLMs), such as ChatGPT, to aid venture capitalists in the screening of startups that maximize sustainability impact. To determine the scope that maximizes impact for venture capitalists' and to identify effective screening criteria, the study utilized theoretical research and interviews. The thesis suggests that the ideal investme

Decomposing Import Price Inflation in the EU

This thesis examines what drives import price inflation in the EU by decomposing it into supply and demand driven inflation. The decomposition is done by using product level import data retrieved from Eurostat. The paper examines the period from 2019-01 to 2023-01 which captures events such as the Covid-19 and the war in Ukraine. To classify the product as demand or supply driven, two methods are

Grön-By - Sökandet efter den sociala gemenskapen

Ofrivillig ensamhet är ett växande samhällsproblem och påverkar människors hälsa negativt, såväl fysiskt som psykiskt. Som människor är vi skapta för att vara i gemenskap med andra. Att känna sig inkluderad och delaktig därmed grundläggande för vårt välbefinnande och vår hälsa. Många upplever den sociala avsaknaden i sitt hem eller i sitt bostadsområde. När det handlar om att känna sig ensam i sInvoluntary loneliness is a growing societal issue that negatively affect people’s health, both physically and mentally. As human beings, we crave community and belonging. Feeling included and involved is therefore fundamental to our health and well-being. Many individuals face social isolation within the confines of their homes or close neighborhoods. When experiencing loneliness in your home,

Design of Experiment Based on Full Factorial CFD Spray Modelling

Design of experiment is a powerful tool that can reduce the amount of physical testing needed to save resources, time and money. A CFD-setup was constructed in OpenFOAM-8, simulating injection of liquid propane with a standard multi-hole injector. The model was then validated against experimental results. Two design of experiment models were then created using Rstudio. The two models had four spec

Dejtingmarknadens marginaler: männen utanför – En studie av incels livsberättelser på Flashback Forum

Denna studie berör incel-män på forumet Flashback och deras livsberättelser utifrån teman om ensamhet, utanförskap, maskulinitet och samhälleliga faktorers roll i problematiken. Tidigare forskning tyder på att ensamhet och utanförskap samt upplevd hopplöshet inför möjligheter till sexuella och/eller romantiska relationer förekommer frekvent inom gruppen incels. Syftet med studien är att utöka kuns

An Experimental Investigation of Dry Thermopressed Cellulose

Plastic waste, especially from packaging, keeps increasing. As a consequence, harmful effects on animals and whole ecosystems as well as increasing greenhouse gas emissions can be seen. More sustainable materials are therefore needed, and dry thermopressed cellulose shows promising potential in replacing plastics in several packaging applications. Being a novel type of moulded pulp process, the re

Traveling on a Whim? A qualitative case study on how business models for Mobility-as-a-Service can be designed and configured

Purpose: The purpose of the study is to gain a deeper understanding of how MaaS business models can be designed and configured. Theoretical Perspective: The theoretical perspective is provided by a preliminary framework which consists of a synthesis between Business model theory and MaaS literature. Methodology: A qualitative single case study was employed with an abductive research approach. E