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Nukleosynthes i ackretionsskrivor kring svarta hål. Hur bildas atomerna som bygger upp oss människor - till exempel atomer av kol, syre eller kalcium? Den idag gâllande teorin är att lättare atomer såsom väte, helium och litium skapades vid "Big Bang", medan en supernova från en döende stjärna producerade och frigjorde bland annat kol, syre, kalcium och järn. Det som stjärnnor och Big BNucleosynthesis is the mechanism which produces new elements in nuclear reactions. Nuclear reaction rates are highly temperature dependant, and nuclear reactions take place in very hot environments. Current theories predict that the light elements such as hydrogen and helium were produced during the Big Bang. On the other hand, the core of stars produce heavier elements through nuclear fusion. The

By the beginning the second decade of twentieth century, a new regime came to power in Iran. While considering the Iranian society, her institutions, mechanisms and structures as a backward and dysfunctional one, the new regime started to set up a new order, based on modern values. In this case, old urban structures were among those aspects of the Iranian culture and society which were selected a

Allting är uppbyggt av atomer, inte bara träd, djur eller bläcket i dessa bokstäver, utan även astronomiska objekt så som stjärnor och planeter. Stjärnor är i princip extremt varma och kompakta moln av atomer, som skickar ut ljus i alla riktningar. Astronomer är intresserade av vilken sammansättning av atomer som bygger upp stjärnor eftersom detta hjälper dem att förstå hur stjärnor och galaxer biStellar abundances are important for understanding the chemical evolution of galaxies and provide us with constraints on stellar evolution and supernova nucleosynthesis. To determine stellar abundances accurately, atomic data is crucial. This data is incomplete for many elements, especially in the infrared region. In particular, hyperfine structure (hfs) data in the near-infrared region is lacking

Sverige präglas idag av en stark urbaniseringstrend, där inflyttning främst sker till våra tre storstadsregioner. Ett problem som försvårar urbaniseringen är att utbudet av bostäder inte möter den stora efterfrågan som uppstått. Byggbar mark i centrala lägen betraktas dessutom ofta som fullt ianspråktagen. På så vis har en diskussion om möjligheter att effektivisera markanvändningen uppstått. DettToday, Sweden is characterized by a strong urbanisation trend, where occupation mainly takes place in our three metropolitan regions, Stockholm, Gothenburg and Malmö. A problem that complicates the urbanisation is the fact that supply does not meet the demand of housing, which has arisen in these areas. In addition, buildable land in central areas is often considered to be fully claimed. Thus, a d

In recent years, Chinese corporate bond markets have grown at a remarkable rate. This thesis aims to examine the impact of corporate bond issuances on the momentum of stock prices by applying the event study. Our study comprises 212 corporate bond samples in the Chinese bond market from 2012 to 2016. Additionally, we investigate whether firm-specific and bond-specific characteristics correlate to

Denna uppsats avhandlar förvaltningen av dödsbo och det skydd som borgenärer har för sina fordringar både enligt ärvdabalken och enligt annan lagstiftning. Den rättsliga reglering som omgärdar dödsboförvaltning är till åren kommen och är i visst behov av att sättas i en nutida kontext. Uppsatsen utmynnar i slutsatsen att samtidigt som borgenärsskyddet är starkt, främst med avseende på ärvdabalkensThis thesis is about the administration of Swedish decedent estates and the creditors’ financial security of claims according to Swedish legislation. The legal regulation on the administration of descendent estates is dated and has some need to be updated. The findings of the thesis are as follows: the creditor’s security has a strong status, primarily due to the inheritance code’s requirement of

Studiens syfte är att utvidga kunskapen om berggrunden på södra Gotlands och koppla det till den ansträngda grundvattensituation i området. Materialet till studien kommer från Sveriges geologiska undersök-ning (SGU) som utfört geofysiska borrhålsmätningar och flygburna resistivitetsmätningar (SkyTEM) och från Olje-prospekterings AB (OPAB) som på 70- och 80-talet gjorde borrningar på Gotland i syftThis study aims to expand the knowledge about the bedrock in southern Gotland and link it to the strained groundwater situation that is there. The material for the study comes from the Swedish Geological Survey (SGU) which conducted geophysical borehole measurements and airborne resistivity measurements (SkyTEM) and from OPAB, which in the 70’s and 80’s drilled several wells on Gotland for the pur

Lignin accounts for 15 – 30 % of plant biomass, but is till today remarkably underutilized, mainly due to its heterogeneity and recalcitrance towards depolymerization. The bacterial conversion of lignin into value added chemicals is a highly promising approach to overcome this underutilization and can help to improve the economic competitiveness of the biorefinery concept. In the current study, 1

Det huvudsakliga syftet var att kartlägga motivationen hos yrkesarbetarna och tjänstemännen på ett grundläggningsföretag. Frågeställningen belyste skillnaden i motivationen beroende på vilken yrkestyp de har, vilken region de arbetar inom och vilken åldersgrupp, generation, de tillhör. En kvantitativ enkätundersökning skickades ut till 128 medarbetare på grundläggningsföretaget. Undersökningen ficThe aim of the study was to map the motivational factors for blue collar and white collar workers at a construction company working on foundations and ground preparation. The question area sought to find differences in motivation depending on the type of work they do, which region they work in and their age group (generation). A questionnaire was sent to 128 employees at the company and 57 respond

The aim of this study was to examine the experiences of social workers working with unaccompanied refugee minors during the autumn of 2015, commonly referred to as the “refugee crisis”. During this period, Sweden received approximately 156 400 refugees, putting Sweden’s social infrastructure under enormous pressure. As a result of the stressful working conditions, a large amount of social workers

Today, the discussion regarding the environmental degradation is more active and pressing than ever. In Paris 2015, world leaders signed Agenda 2030, binding them to actively work to keep the global temperature increase below 2 degrees Celsius. This agreement also targets the need for sustainable energy for all humans. The purpose of this paper is to evaluate whether FDI has an effect on the consu

The ingredients generally used in the fermentation of probiotics tend to give an off-flavour to the fermentation product which is not ideal when producing e.g. fruit drinks. The aim of this master thesis was to evaluate if the concentration of such ingredients could be lowered and also to investigate whether there are other ingredients that could act as substitutes to those ingredients giving off-

Hur kan man optimera den fysiska användarupplevelsen vid laddningen av elbilar? Bilindustrin står inför en stor utmaning med övergången från bensin- och dieselbilar till elbilar. Elektrifieringen resulterar i helt nya vanor och interaktioner för användarna vilket påverkar användarupplevelsen. Genom att designa de parametrar som påverkar den fysiska användarupplevelsen kan man optimera laddningsprThe car sector is facing a big challenge with the conversion from gasoline and diesel vehicles towards electric vehicles. This electrification results in new habits and interactions for the users. The major objective for this study is to investigate how to facilitate the charging procedure for the electric vehicle users. The aim of this thesis is to investigate how to, as effectively as possible,

Syfte: Uppsatsens syfte är att undersöka vilken effekt skräddarsydd marknadsföring har på konsumenter beroende på vilken digital kommunikationsplattform som används. Metod: En kvalitativ studie har genomförts med ett hermeneutistiskt tolkningsperspektiv och ett induktivt tillvägagångssätt. Data för studien har samlats in från fokusgrupper, litteratur, artiklar och webbsidor. Teoretiska perspekPurpose: The purpose of this essay is to examine the effect of customized advertising on customers, depending on the digital communication platform on which the advertisement is marketed. Methodology: A qualitative study has been made with a hermeneutical interpretation perspective and an inductive approach. Data for the study has been collected from focus groups, literature, articles and web pa

Purpose: The purpose of this thesis is to tackle the paradox of governing free labour by exploring and drawing further understanding to the co-creation process in online brand communities. Originality: This study is the first to investigate co-creation from the theoretical perspective of the production of space and the first to introduce the concept of co-control in regards to the management of co

Syfte: Syftet med denna uppsats är att undersöka förekomsten av earnings management i svenska skogsbolag, för att på så sätt belysa problematiken kring verkligt värde-värdering. Metod: Studien har genomfört som en fallstudie där datainsamling och analys har gjorts enligt en kvalitativ metod. Datainsamling består av en dokumentstudie och har kompletterats med semistrukturerade intervjuer. FallförePurpose: The purpose of this study is to examine the presence of earnings management in Swedish forestry companies. The aim is to illustrate the problem regarding valuation at fair value. Methodology: The study has been conducted as a case study where data collection and analysis have been done according to a qualitative method. The data collection consists of a document study which is supplemen

Background and Research Question Historically, Lindab has largely focused its efforts on the production, but as a part of recent development in company strategy, supply chain management has gained more attention. In this regard, more attention has been given to stock reduction and minimizing total setup times to get a leaner production. Therefore, the company wants to investigate the current produ

There are plenty of IT-consultancy firms operating today, and the numbers show that they keep getting more and more. At the same time, the demand for these services are increasing. The biggest issue that these firms face today is related to finding new business opportunities. The complexity surrounding the purchase of these services make it a complex subject that is hard to fully grasp. It include

Purpose: The study aims to advance the understanding of collaborative consumption through the research on the engagement rules, conventions, and norms that govern the practice. The study postulates that it is through the possession of the right competences and meaning that permit insiders to successfully apply the rules of collaborative consumption while deterring outsiders from making an initial

The digitalization of the music industry has meant a drastic increase of public accessibility of recorded music, which has transformed the way in which music is being consumed. From initially being restricted by the physical disposition of CDs and vinyl, the prospect of digital downloading and music streaming has rapidly transformed the music landscape as the world knows it. The music industry rev