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Implantat som bryts ner i kroppen – en lösning för framtidens benbrott Tänk dig att du bryter benet och att skruven som håller det på plats försvinner av sig själv när benet läkt – utan en extra operation. Det kan bli verklighet med nedbrytbara metallimplantat. Vid komplicerade benbrott används ofta metallimplantat för att stabilisera skelettet under läkningen. Dessa tillverkas traditionellt av Biodegradable magnesium alloys are promising candidates for orthopaedic implants due to their mechanical compatibility with bone and their bioresorbable nature. This study investigates the degradation behaviour of Mg-Zn-Zr-Ca alloys with varying zinc concentrations, focusing on how heat treatment and microstructure evolution influence corrosion resistance under physiologically relevant conditions.

Som vi har märkt på grund av de senaste årens höga elpriser är en jämn elproduktion från grön energi väldigt viktig. Solkraft där man lagrar energi i smält salt kan användas för att sprida ut eltillverkningen på alla dygnets timmar. Utvinningen av saltets energi är då högst betydelsefull och denna har undersökts genom effektiva och simpla flödessimuleringar i detta arbete. Dessa flödessimuleringaTo be able to meet the global energy demands, a steady supply of green energy is required, even during sun- or windless hours. Concentrated solar power is a useful alternative, which can produce and store green energy by heating a heat transfer fluid (HTF) and extracting its energy via a heat exchanger. One such category of HTF is molten salts, and to understand and be able to model the behaviour

Ett protein med potential: så kan växternas hemoglobin förändra världen Från blodbrist till vegetarisk kost uppmanas vetenskapen ständigt att hitta lösningar som främjar både hälsa och hållbarhet. En spännande möjlighet finns i phytoglobiner; växternas egna form av hemoglobin. I det här projektet har ett phytoglobin från sockerbeta producerats och optimerats i bakterier, med målet att ta fram ettHemoglobins, part of the globin superfamily, are heme-containing proteins that are involved in numerous biological processes, primarily oxygen transport. In plants, they are known as phytoglobins and serve diverse roles beyond oxygen transportation, with potential applications as artificial blood substitutes, iron supplements, and plant-based meat alternatives. A class 1 phytoglobin from sugar bee

Plastic has been a revolutionary material in human history. Plastic materials have several desirable properties, such as durability, low production costs, and versatility. This helps explain the increase in their use and production over the past 100 years. Plastics are synthetic polymers, with long repeating chains of monomers; this creates structures that are chemically stable and durable. The ov

Stellar lithium abundances can help answer multiple unanswered questions within modern astrophysics. Lithium is fragile in comparison to other elements found in stellar atmospheres. Consequently, its abundance within the stellar atmosphere is depleted by different processes. Studying these lithium abundances gives insight into the evolution of the stars and the processes within their interiors. Th

The understanding of solid state physics is a significant part of understanding the foundations of modern technology and engineering. Applications of solid state physics are broad; it includes solar panels, laser technology, transistors, light emitting diodes (LEDs), and many more, all of which have been significant technological advancements that have offered people efficient and useful devices a

This study aimed to investigate how institutional staff at special residential youth homes operated by the Swedish National Board of Institutional Care (SiS) experience their authority under coercive legislation. How they perceive their power position regarding the youths, and which ethical dilemmas may arise in their work. The study also explores the experiences regarding the criticism directed a

This thesis explores how welfare crime is discursively constructed as a problem in policy documents from Järfälla, Malmö, and Uppsala, using Carol Bacchi’s What’ s the Problem represented to Be? (WPR) approach. Within a context of turbulence (Ansel et al 2024) the study examines how welfare crime is presented, what remains unproblematized, and the political and discursive effects of these represen

Det är alltmer tydligt att användningen av naturresurser är ohållbar för vår planet. Dagens resursuttag och resursanvändning representerar cirka hälften av växthusgasutsläppen, och 90% av förlusterna av biologiskt mångfald (IRP, 2019) och behöver förändras. Att gå från en linjär ekonomi som bygger på ett ”slit och släng”-mönster, till en cirkulär ekonomi blir allt viktigare. Politiken såväl som näResource extraction and processing contribute to more than 90% of biodiversity loss and water scarcity and about 50% of climate impacts globally. Moving towards a sustainable resource use is fundamental for reducing environmental impact. Resource use is often considered within the framework of the Circular Economy, a concept that has been widely adopted as a key strategy to meet this challenge. In

This thesis explores the right to seek asylum in the European Union (‘EU’) in situations where migration is used as a tool of political pressure - referred to as instrumentalization of migration. The analysis is grounded in Finland, focusing on its Eastern border with Russia where instrumentalized migration has recently occurred - as part of Russia’s broader strategy to destabilize and exert press

Rising logistics costs and inefficiencies caused by Lindab Group’s current internal markup structure have prompted the company to consider a new logistics model. This study examines the feasibility of developing an internal third-party logistics (3PL) provider as a way to improve operations, increase profit and enhance coordination across the group. The research maps current distribution flows, id

The purpose of this study was to investigate whether there is a difference in what individuals consider important when making moral judgments. This was examined through two research questions. The first concerned whether individuals value different underlying factors of morality depending on whether the statement concerns themselves or someone else. The second research question explored whether em

Gör fint väder luftkvaliteten sämre? Finns det något härligare än en solig vecka? När de mörka molnen, det envisa regnet och de kyliga dagarna till slut ersätts av några veckor med sol, värme och klart väder i södra Sverige. Men tänk om jag sa att dessa långa perioder med klart väder kanske inte är så positiva som vi tror. De kan faktiskt innebära en ansamling av farliga partiklar i luften. PeriHigh-pressure blocking events are anticyclones that persist over a region for a long time. The event prevents vertical mixing of air pollutants due to the subsidence inversion created by the adiabatic compression of air during the anticyclone. This study investigated the relationship of aerosol concentrations during periods of high-pressure blocking events in southern Sweden for the rural location

Purpose: The purpose of this master thesis was to explore, define and characterise the phenomenon of Brand Fellowship within business-to-business (B2B) communication by using the rhetorical appeals of ethos, logos and pathos. Brand Fellowship was observed to be the emotional relationship between man and machine that influences how heavy-duty machine companies construct their brand. This contradict

The purpose of the study was to examine and evaluate different participants´ arguments in the public debate of low-wage jobs as tools of integration for migrants in relation to ideal type welfare regimes. Twenty one articles submitted by participants from the public were analyzed over the year 2011 and 2017 in the two largest outlets of popular press in Sweden: Aftonbladet and Expressen (including

Society and disability - A qualitative study of inclusion of persons with disabilities in the Balinese society The aim of this study was to examine factors in the Balinese society that affected the life situation of persons with disabilities and what factors contributed to creating limitations and opportunities for them. The purpose was also to examine whether inclusion and exclusion could happen

Vad: Kandidatuppsats VT 2017. Lunds universitet. Campus Helsingborg, Institutionen för Service Management. Titel: En kvalitetsförbättring på spåren - Om tjänstekvalitet ombord på fjärrtåg i Sverige. Syfte och frågeställning: Syftet med studien är att skapa en förståelse för hur tågoperatören kan använda tilläggstjänster för att kompensera resenärer då kärntjänsten brister i form av en försening

This paper investigates the theory of collateral constraints developed by Rampini, Sufi, and Viswanathan in their paper Dynamic Risk Management published in 2014. In this theoretical framework, firms are faced with a trade-off between using scarce cash holdings to finance investments and engaging in risk management. Using an updated dataset covering a tumultuous time-period in which oil prices fel

Today’s society requires an endless supply of energy resources to keep functioning properly. The fluctuations in the prices of energy commodities are always a concern as it affects not only investors, but regular households as well. With the general turmoil the market is experiencing, the necessity for risk management has become of outmost importance. Thus, this paper provides an empirical study o