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Since the 1950s, no other material has been developed and used to the same extent as plastic. We have built up a society that has integrated plastics into virtually every aspect of our lives. With low material prices, cheap manufacturing methods and its versatility, plastic has quickly become a commodity in society that is consumed in an unsustainable way. Plastic pollution causes immense social,
Röntgensjuksköterskan möter ett flertal patienter i sin profession som ska genomgå en magnetresonanstomografi (MRT). En MRT är en modalitet som används för att framställa diagnostisk information av kroppens olika organ och funktion utan joniserande strålning. MRT är en mer tidskrävande undersökning, och kräver att patienten ska ligga stilla i en smal tunnel. Många patienter upplever att undersökni
Prismatiska battericeller sväller på grund av ett antal olika faktorer, såsom laddningstillstånd och temperatur, men också irreversibelt med laddningscykling. Cellhälsan kan förbättras genom att begränsa svällnad av cellen, och därmed bör konstruktionen som håller cellerna på plats, modulen, kunna begränsa svullnaden och därmed motstå det lastfall som skapas av cellsvällnaden. Denna uppsats utvärdPrismatic battery cells swell due to a number of different factors, such as state of charge, temperature and irreversibly with charge cycling. Cell health can be improved by restricting the swelling of the cell, and therefore, the container which holds the cells, the module, should be able to restrict the swelling, and thus withstand the force exerted by the cells. This paper evaluates the use of
The purpose of this thesis is to identify potential factors that affect the patient's experience regarding the care and treatment they have received at the Swedish Red Cross' Treatment Center. The treatment center help people who are suffering from trauma linked to war, torture and/or severe migration journeys. In 2019, 454 of their patients answered a survey about how they experienced the
Climate change has become an all-encompassing problem as CO2 accumulating in the atmosphere sets the pace of temperature increases in our rapidly warming world. In attempting to make society ‘green,’ environmental movements have pursued different strategies through different political constellations. Shedding light on the movement’s ability to influence, I analyze the Danish environmental movement
Syftet med studien är att undersöka instrumentallärares tillvägagångssätt och förhållningssätt till den första lektionen med en ny elev eller grupp. Målet är att fördjupa kunskapen om vilka undervisningsstrategier som används och vad som värderas som viktiga inslag i en elevs första instrumentlektion. I studien intervjuas fem instrumentallärare kring ämnet och med hjälp av litteratur och tidigare
Sverige är ett av få länder som har tagit fram en nationell handlingsplan för att omsätta FN:s vägledande principer för företag och mänskliga rättigheter på nationell nivå. FN:s vägledande principer skapar inga nya folkrättsliga förpliktelser, utan uppmuntrar endast stater att ta fram nationella handlingsplaner för att omsätta principerna på nationell nivå. Sveriges framtagande av planen kan såled
Ögonrörelsemätning är en populär metod inom matematikforskning för att undersöka underliggande kognitiva processer. Individer med matematiksvårigheter har svårt att bemästra matematiska färdigheter och är ofta i behov av extra hjälp. Denna systematiska litteraturöversikt syftade till att granska elva studier (nio urval) publicerade mellan 2002 och 2020 för att ta reda på huruvida ögonrörelsemätninEye tracking is a popular method used in mathematics research for investigating underlying cognitive processes. Individuals with mathematical difficulties have problems with mastering mathematical skills and are often in need of extra help. This systematic review aimed to review eleven studies (nine samples) published between 2002 and 2020 to assess whether eye tracking is a useful method for rese
En kortare skönhetssömn för drottningar genom tiden Humlor, av släktet Bombus, är livsviktiga pollinerare med en årlig livscykel som påbörjas när de övervintrande drottningarna vaknar på vårkanten. Dessa humledrottningar lägger grunden för den kommande vår- och sommarsäsongen, då de på egen hand startar upp hela samhällen av hårt arbetande humlor samt föder upp nya generationens drottningar. DockBumblebees (Bombus spp.) are important wild bee pollinators in colder climates, making them one of the main pollinators in Scandinavia. In Sweden, the composition and abundance of bumblebee species has shifted dramatically since the 1940s, putting the ecological stability and productivity of crops and wild plants at risk. It has been proposed that the change in bumblebee abundance is linked to the
The thesis sets out to explore the role and meaning of friendships across two age groups. This is attained by a generational interview design where the groups are separated by nearly 20 years. The thesis is motivated by an alleged seismic shift towards the importance of friendships as the nuclear family imagery is on a purported decline in ‘contemporary society’ as suggested by the academic litera
Massan i vår galax Vintergatan, består av en idag stor del okänd massa som kallas mörk materia. Den mörka materian motsvarar ungefär 80\% av den totala massan i vår galax. Att ta reda på naturen till denna mörka materia är idag ett hett forskningsområde i både astrofysik och partikelfysik. Trots årtionden av experiment med mål att hitta dessa partiklar som denna massa består av har vi än idag gåttStellar streams are made of stars that originate from globular clusters or dwarf satellite galaxies that have been disturbed by the gravitational pull from the galaxy they orbit. These stellar streams hold information about the history of the progenitor as well as information about the gravitational potential of the host galaxy. In this thesis we make use of the high resolution cosmological zoom s
Inom matematiken är det ofta viktigt och användbart att "maximizera" en derivata. Det betyder att man hittar en funktion som har den största derivatan i en punkt bland en familj av funktioner. Detta kallas för ett "extremal problem" och vi söker en lösning till detta problemet. Den finska matematikern Lars Ahlfors upptäckte en sådan lösning i 1947. I denna uppsatsen kommer vi uExtremal problems in analysis have been studied for more than a hundred years. The so called Ahlfors function is the solution to one such problem. In this thesis, we shall study several properties of this function in a most general domain. We will consider the Ahlfors function in the context of analytic capacity, and also relate it to Riemann maps of simply connected domains onto the unit disk. Ou
Within recent years, the concept of Humanitarian Innovation (HI) has emerged and received growing attention within the humanitarian system as a critical means of adapting to growing complexities, uncertainties and resource scarcity. While perceived as a means of stimulating broader system changes and increasing effectiveness and efficiency of humanitarian assistance, current efforts of HI have met
Number theory is in a sense among the oldest disciplines of mathematics. A running theme is that many number theoretic problems are very easy to state and understand. However, actually solving these problems often requires much work or some very clever trick. An extreme case of this would be Fermat's last theorem: originally a conjecture by French lawyer Pierre de Fermat whose statement is und
The internet has revolutionised our world. The digital ecosphere is dominated for the most part by technology companies. The surveillance business model of these companies seeks to create predictions and inferences based on persons behaviour which can be used to shape, nudge and manipulate towards certain goals. This presents immense challenges to human rights, especially to the right to privacy.
Nepal has long been recognized as a multi-cultural country with a diverse geographical area. Despite its natural beauty, Nepal is plagued by a number of social issues. Violence against women has always been an issue, exacerbated by patriarchal cultures. Several development organisations are trying to alleviate the situation. The aim of this research is to decide how development organisations integ
Background The importance of services is increasing, and companies need well-developed service contracts to ensure the service providers perform at a satisfying level. In contracts, performance-dependent rewards (incentives) can be used to stimulate the agent to act desirably. This master thesis focuses on E.ON New Solutions B2C, who offers solar panel installations to residential customers. They
Background Transparency of a supply chain is the extent to which all its stakeholders have a shared understanding of, and access to, the product-related information that they request, without loss, noise, delay, and distortion. Having access to accurate and timely information is a challenging issue in global supply chains. Therefore, this research aimed at identifying barriers that could act as
Machine learning as a field has expanded in an explosive manner, with more companies interested in using the technology. One of these companies, Spiideo, uses Machine learning to automatically stream and record sports, highlighting key events - all automatically without a cameraman. However, these cameras have to undergo a lengthy calibration process involving manual feature extraction. This work
