To reduce emissions of carbon dioxide (CO2) Carbon Capture and Storage (CCS) technologieshave been developed. Chemical Looping Combustion (CLC) is a CO2 capture technologywith the CCS framework, and at Chalmers University of Technology in Gothenburg,Sweden, a 100 kW chemical looping combustor has been built.This project aimed to investigate to what degree air can replace helium as the uidizinggas for uid dynamical studies in a CLC cold ow model of the above mentioned 100 kWfacility. Experiments were performed using air and helium separately as uidizing gas andpressure data were obtained, which formed the basis for the comparison. The project alsoaimed to investigate uid dynamics in the uidized bed and study when the risk of sluggingoccuring was greatest. The results were presented in the form of figures and tables dividedinto pressure, concentration and standard deviation of the pressure.The results obtained showed that air as uidizing gas did not create the same uid dynamicsas helium over the entire fuel reactor.

To reduce emissions of carbon dioxide (CO2) Carbon Capture and Storage (CCS) technologieshave been developed. Chemical Looping Combustion (CLC) is a CO2 capture technologywith the CCS framework, and at Chalmers University of Technology in Gothenburg,Sweden, a 100 kW chemical looping combustor has been built.This project aimed to investigate to what degree air can replace helium as the uidizinggas for uid dynamical studies in a CLC cold ow model of the above mentioned 100 kWfacility. Experiments were performed using air and helium separately as uidizing gas andpressure data were obtained, which formed the basis for the comparison. The project alsoaimed to investigate uid dynamics in the uidized bed and study when the risk of sluggingoccuring was greatest. The results were presented in the form of figures and tables dividedinto pressure, concentration and standard deviation of the pressure.The results obtained showed that air as uidizing gas did not create the same uid dynamicsas helium over the entire fuel reactor.

Although previous research conclude that mergers and acquisitions do not always lead to improved profitability or increased shareholder return, the number and size of M&A?s is steadily increasing. In this thesis we examine why an acquirer pays a price higher than the market value. Can accounting data explain the size of the premium? 618 European transactions between 1997 and 2008 are examined and relationships between the targets? accounting data and the premium is analysed through statistical regressions.

Studien undersöker huruvida användbarhetsfaktorer på webbsidor påverkarförtroendet på ett annat sätt än på webbplatser generellt. Studien använder sig aven kvalitativ forskningsmetod. Två intervjuomgångar genomfördes där totalt niorespondenter i åldrarna 20-29 år fick uttala sig om sina uppfattningar kring huranvändbarhetsfaktorer på webben påverkar deras förtroende, och om de uppleveratt förtroendet påverkas annorlunda på medicinska webbplatser. Den förstaurvalsgruppen bestod av fem försökspersoner på AstraZeneca:s avdelning förförsöksverksamhet i Göteborg. Den andra urvalsgruppen bestod av fyra personer ivår bekantskapskrets.

Dog bites pose a threat to public health globally and can lead to infection, disfigurement, incapacity, post-traumatic stress syndrome and even death. In geographical areas where rabies is endemic, bites from infected dogs account for over 90% of the human rabies cases. Children have been proven to be at a greater risk of being bitten by dogs and subsequently contracting rabies than adults. In this cross-sectional study, a school survey was undertaken in association with a rabies awareness campaign in India, to investigate the dog bite incidence and various risk factors associated with dog bites as well as assessing the knowledge of safe interaction with dogs among children in the age group 10-18 years. A total of 1295 questionnaires were collected. 43.2 % (n=556) out of the respondents were boys and 56.8 % (n=731) were girls with a mean age of 14 years.

Sjuksköterskor har flera arbetsuppgifter som innebär en möjlig kontakt med patienters blod och risk för en blodsmitta. Enligt föreskrifter från Arbetsstyrelsen ska handskar användas av vårdpersonal för att förebygga smitta. Trots dessa föreskrifter varierar användningen av handskar bland sjuksköterskor. Syftet med denna studie var att undersöka sjuksköterskors attityder till att använda handskar i vården där risk för blodsmitta kan förekomma. En empirisk studie med kvalitativ ansats genomfördes.

I dagens finansiella marknad utsätts de finansiella aktörerna för risk på sin strävan efter lönsamhet. Balansgången mellan att maximera verksamheten och risk har öppnat ögonen och ökat medvetenheten om behovet av att utvidga sina krav på att täcka upp kapital.Efterfrågan på snabba, pedagogiska och säkra sätt att lätt kunna beräkna risk har därför snabbt ökat. Under de senaste åren har det därför blivit allt populärare att använda sig av riskmåttet ?Value at Risk? vilket kan definieras som; ?En portföljs maximala värdeminskning med en viss sannolikhet inom en viss tidsperiod? Jag har valt att göra en jämförelse mellan de två vanligaste modellerna som används för att räkna fram Value at Risk, Historisk simulering och Varians-/kovarians-metoden. De två modellerna kommer att testas mot tre olika tillgångar, guld, valutakurs Sek/£ samt aktieindex.

Active ownership is widely regarded as positive for the development and performance of businesses. In this paper, we investigate the impact of ownership concentration and owner identity on return on equity (ROE) in Swedish companies between 1986 and 2008, and show that active ownership might suffer from opposing effects. We find evidence, albeit weak, that ownership concentration has a positive effect on profitability, but that it levels off at high levels of ownership shares. Furthermore, we propose that family ownership has a negative effect on profitability. Our results are dependent of choice of statistical method, but show nonetheless a need to reevaluate what seems to be a universally positive view of active ownership..

Bakgrund: Personer som injicerar droger riskerar att drabbas av allvarliga infektioner. Tidigare studier har visat att personal som möter personer i risk inte har tillräckligt med kunskap för att erbjuda hälsofrämjande insatser.Syfte:Att kartlägga personalens kunskap om infektioner som kan drabba personer som injicerar droger,samt undersöka om utbildnings intervention ökar personalens kunskap och motivation till preventiva samtal.Metod:Totalt genomfördes fem utbildningar med 26 deltagare från psykiatri-, och infektionsavdelning, samt ungdomsmottagning. Studien genomfördes med enkät före och en månad efter utbildning. Enkäten innehöll kunskapsfrågor och frågor om erfarenhet av preventionssamtal med personer i risk.Resultat:Studien visade att personalen saknade tillräcklig kunskap om smitta vid injektion av droger och att personer i risk inte i tillräcklig omfattning erbjöds information och stöd. Innan utbildning skulle enbart 60 % av personalen samtala om smitta vid injektion av droger om de fick frågor av personer i risk.

In this study, we examine the presence and consequences of CEO overconfidence in the Swedish market. We identify overconfidence with two insider-trading based measures and find that overconfidence is apparent among one third of CEOs in companies listed on the Swedish stock market. We also find that these CEOs are more prone to carry out acquisitions, as the probability of conducting an acquisition increases by 27 % if the CEO is overconfident. However, we do not find evidence that acquisitions by overconfident CEOs are more value-destroying. This finding contradicts results from previous studies conducted on Anglo-Saxon markets that suggest that overconfidence has a negative impact on the value-creation in acquisitions.

This thesis investigates the effects of active ownership on the return on assets (ROA) of Swedish listed companies during the years 2003 to 2013. Active ownership is operationalized based on the probabilistic voting model that is used to calculate the minimum amount of shares the largest shareholder needs in order to possess control of a contested vote at the shareholder meeting. We study the three largest lists on the Nasdaq OMX Stockholm, having 1454 observations from 207 companies to test our hypothesis. The main result from the study is that there's a significant positive relationship between active ownership and ROA during the investigated period. The active owners' relative strength also proves to have a significant positive relationship to ROA..

The purpose of this essay was to get some knowledge about how the situation was for children with overweight and obesity. I wanted to examine what experience about causes, consequences and measure the professionals, who meets children in different situations in their daily work had, and I wanted to find out which explanations current research had about the problem.The knowledge I have acquired during my work with this paper about the problem was that it was depending on many different factors on various stage in the child's life which influences and interacts with the child in its development. The risk that a child would develop overweight was amongst other things depending on the child's eating- and exercising habits.This habit was formatted for example by the circumstances in the family, availability of sweets/food and the choice of leisure time activities.The consequences for the overweight/obese children could be that the child did not manage to keep up with its friend's physical activities which led to a sense of rejection, risk of being bullied by friends, the risk of a damaged physical and psychic health. The problem was not easy to measure and all of the studies demonstrated that parental involvement is necessary in an effective treatment of childhood obesity..

Background and research problem: The former highly inflationary property market is currently undergoing a stagnation process. Investors have been used to annual growth figures in double digits,but now this is no longer considered to be a realistic outlook for future years. According to a report from PriceWaterhouseCoopers and Urban Land Institute, published by Avanza Wealth Management,the three most attractive markets for property investment in Europe are London, Paris and Stockholm. Because of this the authors have focused their investigation on two companies in the London andStockholm. The authors will additionally use an international bank, an estate agent and a consultancy firm for further information, with regards to the property market and risks associated with these typesof investment in particular.

Affärsänglar är inget nytt fenomen på dagens globala marknad. Enda sedan Columbus tid har affärsänglar investerat kapital i företag och stöttat nya idéer. Idag har begreppet affärsänglar fått en mer framträdande roll i vårt alltmer komplexa samhälle, vilket tyder på att politiker och företagare har fått en större förståelse för affärsänglarnas betydelse för företagstillväxt och företagsutveckling. Affärsänglarnas verksamhet är emellertid fortfarande relativt outforskat. Affärsänglar definieras som privatpersoner vilka investerar eget kapital i form av kunskap och pengar i företag genom ett aktivt eller passivt deltagande.

To reduce emissions of carbon dioxide (CO2) Carbon Capture and Storage (CCS) technologieshave been developed. Chemical Looping Combustion (CLC) is a CO2 capture technologywith the CCS framework, and at Chalmers University of Technology in Gothenburg,Sweden, a 100 kW chemical looping combustor has been built.This project aimed to investigate to what degree air can replace helium as the uidizinggas for uid dynamical studies in a CLC cold ow model of the above mentioned 100 kWfacility. Experiments were performed using air and helium separately as uidizing gas andpressure data were obtained, which formed the basis for the comparison. The project alsoaimed to investigate uid dynamics in the uidized bed and study when the risk of sluggingoccuring was greatest. The results were presented in the form of figures and tables dividedinto pressure, concentration and standard deviation of the pressure.The results obtained showed that air as uidizing gas did not create the same uid dynamicsas helium over the entire fuel reactor.