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En nyfödd stjärna är omgiven av en disk som består till mestadels av gas med en liten andel grus, en så kallad protoplanetarisk disk. Det är i den här disken som planeter bildas, och likt planeter så roterar den runt solen. En viktig egenskap hos den protoplanetariska disken är att den förändras med tiden. Stjärnans gravitation drar till sig material från disken, vilken gör att den blir mindre och
Moth Wars: The Honeybee Strikes Back In an ecosystem far, far away, there is a plant, a moth and a bee. Deep in the mountains of Sierra Nevada, the plant and the moth are living happily together. But then, an invading foe arrives, the invasive honeybee, that with the help of dark, mystic powers (humans) conquers all land they touch. Our little duo of plant and moth would not be the first to peris
Children do not have many spaces designed entirely for their needs in our world. This has inspired the concept of ‘A Child’s Garden City’. The idea includes research of how children can be included in design and the process of creating safer cities with their considerations in the center. This Master’s Thesis can inspire the relationship between growing natural vegetation, self-sustaining infrastr
To continue the development of novel therapeutics to treat bladder cancer, a reliable model for preclinical testing of treatments and studying of the disease mechanism is essential. Ex vivo culturing of precision cut tumor slices (PCTS) provides a model that can retain the tumor architecture and its tumor microenvironment including the immune cell compartment, but data on PCTS based on bladder tum
The GASMAS technique has previously proven useful for examining and measuring the oxygen concentration in the lungs of preterm infants. GASMAS can distinguish absorption by one gas from the bulk absorption of the surrounding media, and can provide an instant, non-invasive and non-destructive way of examining lungs, and diagnosing dangerous conditions such as pneumothorax. Pneumothorax can be life-
I svenska djurskyddslagen konstateras att djur har en rad olika intressen och behov som ska beredas skydd. Samtidigt är djur rättsligt kategoriserade som objekt och kan till följd därav inte inta partsställning och få sina intressen representerade i rättsliga processer. En sådan ordning innebär svårigheter med att säkerställa djurskyddets efterlevnad. En möjlig lösning på detta, som också har lyftThe Swedish Animal Welfare Act states that animals have a number of different interests and needs that must be protected. At the same time, animals are legally categorized as objects and, as a result, cannot stand as a legal party and have their interests represented in legal proceedings. This entails difficulties in ensuring compliance with the Animal Welfare Act. One possible solution, which has
With countries across the world finding pathways to counter CO2 emissions, sustainable mobility has become a critical topic for leaders, policymakers, and industries. The development of Battery Electric Vehicles (BEV’s) is seen as an important and effective way through which reliance on fossil fuels and thereby related CO2 emissions can be reduced. Statistics show that the number EV’s on the roads
With countries across the world finding pathways to counter CO2 emissions, sustainable mobility has become a critical topic for leaders, policymakers, and industries. The development of Battery Electric Vehicles (BEV’s) is seen as an important and effective way through which reliance on fossil fuels and thereby related CO2 emissions can be reduced. Statistics show that the number EV’s on the roads
Title: How do you cope? A study on entrepreneurs' work-life balance and their existing coping mechanisms. Seminar: 01/06/2023 Course: FEKH99, Examensarbete i entreprenörskap och innovation på kandidatnivå, 15 HP Authors: Emmy Heiding, Vilma Larsson, Love Ivarsson Supervisor: Joakim Winborg Keywords: Entrepreneurship, Early-Stage venture, Work-Life Balance, Coping Mechanisms, Work Satisfaction.
Hur kan restmaterial från stålindustrin användas för att minska uttaget av naturresurser? Ett vanligt användningsområde av exempelvis stålslagg är som konstruktionsmaterial vid sluttäckning av deponier. Genom att använda slagg för detta ändamål kan mängden deponerat material minska, samtidigt som man kraftigt minskar behovet av vanligt täckmaterial, såsom grus och jord. Stålslagg kan även användasA variety of excess material is produced in the processes used in the scrap-metal based steel industry. The largest stream of material, by volume, is steel slag. Since slag material has very different properties and wide differences in its chemical composition its usage can be found in different sectors. The increased understanding of slag and its properties has made companies less prone to divert
Host-virus interactions in archaea is a topic that still remains little explored. A recent study has revealed that the protein gp21 from SIRV2 (Sulfolobus islandicus rodshaped virus 2) induces cell gigantism and growth arrest in the archaeal host Sulfolobus islandicus LAL14/1 after being overexpressed. Remarkably, homologs of this protein have been found in a wide variety of viruses infecting arch
I denna studie testades och utvärderades fyra membran mot varandra för användning i högtemperaturprotonutbytesmembranbränslecell (HT-PEMFC) applikationer. En fosforsyra (PA)-dopat polybensimidazol (PBI)-membran användes som en referens som den nuvarande state-of-the-art. Laddningsbäraren i detta membran är PA, och det finns fördelar med att byta från PA till jonisk vätska (IL) som laddningsbärare In this study four membranes were tested and evaluated against each other for use in high-temperature proton exchange membrane fuel cell (HT-PEMFC) applications. A phosphoric acid (PA) doped polybenzimidazole (PBI) membrane, was used as a reference as the current state-of-the-art. The charge carrier in this membrane is the PA, and there are advantages in switching from PA to ionic liquid (IL) as t
All around the world is the form of the built environment playing a significant role in either enabling or inhibiting outdoor activities. When it comes to winter and Winter cities, it is a challenge how to enable and encourage outdoor activities and soft mobility as the harsh conditions often make it uncomfortable to spend longer periods of time outdoors. A major urban design challenge in Winter
BIM, byggnadsinformationsmodellering, är ett arbetssätt som blir allt vanligare. Det innebär att olika objekt bygger upp en övergripande 3D-modell där man kan finna mängder av information om dessa objekt. Ett objekt kan vara allt ifrån en bropelare till en elstolpe. Syftet med denna rapport är att utifrån Trafikverkets roll som beställare undersöka vilka för- och nackdelar det skulle innebära med BIM, Building Information Modeling, is an increasingly common way of working. This means that different objects build up an overall 3D-model where you can find lots of information about these objects. An object can be anything from a bridge pillar to an electric pole. The purpose of this report is to, based on the Swedish Transport Administrations’ as a client, investigate the advantages and disad
This thesis concentrates on one of the indirect Dark Matter (DM) detection methods, namely through observations of Very High Energy (VHE) $\gamma$-ray signals from DM annihilation (or decay) in cosmic sources using the Imaging Atmospheric Cherenkov Technique (IACT). We discuss the particle physics and astrophysical aspects of those observations and perform several calculations which lead to an est
Sent i oktober 2012 så orsakade orkanen Sandy stor skada på de Karibiska öarna men senare även i USA, New Jersey, då som ett extratropiskt system. Vädersystemet var annorlunda på många vis jämfört med en "normal" orkan med avseende på dess bana, avsaknaden av ett öga och dess enorma storlek. Dessa egenskaper berodde alla på den rådande cirkulationen i den övre troposfären. Det var växelvIn late October 2012 hurricane Sandy caused a lot of damage to the islands in the Caribbean Sea and later on (as an extratropical cyclone) to the United States; New Jersey. The system was different in many ways relative to “normal” hurricanes, e.g. its track, its lack of eye at times it was classified as a hurricane and its great size which all partly was due to the prevailing circulations in the
Background: Scoliosis is a condition where a person's spine is curved and rotated in three dimensions. In severe cases, surgery is needed to straighten the spine. Before such complex procedures, meticulous planning is needed. By performing a CT-scan, images of the spine can be acquired. From these images, it is possible to segment the spine in three dimensions to facilitate the preparation. Ho
The main aim of this study is to answer the hypothesis that Judy Chicago's 1971 photolithograph "Red Flag", along with her academic career, can be seen as an answer to the new approach to art history and what defines art, that Linda Nochlin calls for in her essay "Why have there been no great women artists?". The analysis of "Red Flag", which depicts a bloodfille
För att en häktad person inte ska kunna försvåra brottsutredningen går det att ålägga denne restriktioner avseende möjligheterna till kontakt med omvärlden. Det kan emellertid vara mycket påfrestande att vara häktad med restriktioner. Artikel 3 i Europakonventionen innehåller ett förbud mot tortyr samt mot omänsklig eller förnedrande behandling eller bestraffning. Artikeln kan aktualiseras vid anvIn order to prevent a pre-trial detainee from obstructing the criminal investigation it is possible to impose restrictions on the possibilities of contacting the outside world. However, it can be very challenging to be detained with restrictions. Article 3 of the European Convention on Human Rights, which contains a prohibition of torture and inhuman or degrading treatment or punishment, can be ap
Elbilars utveckling går fort framåt och fler väljer att investera i en. Vilka olika laddningstekniker finns det? Hur kommer laddningen av elbilar påverka våra elnät? Kraftdistribution till en elvägssträcka modelleras för att påvisa kapacitetskrav och kostnader. Studien visar även hur hemmaladdning och arbetsplatsladdning kan påverka belastningen i elnätet om reglering uteblir.Sweden’s road traffic is responsible for a great part of the emissions of greenhouse gases in the country. Conventional vehicles, driven by fossil fuels, have low efficiency and emits environmentally destructive particles. Electric vehicles can be the solution! Electric vehicles have no local emissions while driving and the electric motors of today have an efficiency of above 90 %. But there are s
