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5369 Uppsatser om Atmosfärisk refraktion - Sida 28 av 358
En undersökning av VaR-modeller med Kupiecs Backtest
SAMMANDRAGHistorisk Simulation, Delta-Normal och RiskMetrics prestation utvÀrderas med hjÀlp av Kupiecs Backtest. Value at Risk (VaR) berÀknas med tre olika konfidensnivÄer utifrÄn AffÀrsvÀrldens Generalindex och HSBC kopparindex. UtifrÄn övertrÀdelser frÄn verkligt utfall undersöks vilken VaR-modell som estimerar marknadsrisken bÀst. VaR-modellernas prestation jÀmförs, och i analysen utreds hur konfidensnivÄ och tillgÄngars egenskaper pÄverkar VaR-modellernas prestation. Resultaten visar att Historisk Simulation presterar bÀttre Àn Delta-Normal och RiskMetrics pÄ den högsta konfidensnivÄn vilket troligtvis beror pÄ att RiskMetrics och Delta-Normal antar normalfördelning.
Brottslighet, psykosocial belastning i barndomen och risk för vÄld : Könsskillnader hos rÀttspsykiatriska patienter
RÀttspsykiatriska patienter Àr en grupp med mycket psykosocial belastning i barndomen och mer forskning behövs kring bland annat huruvida det finns samband mellan denna psykosociala belastning, framtida brottslighet och bedömd risk för vÄld. Denna studies syfte var att jÀmföra brottslighet, psykosocial belastning i barndomen samt initiala riskbedömningar gjorda med HCR-20 pÄ kvinnor respektive mÀn vÄrdade vid RÀttspsykiatriska Regionkliniken i Sundsvall. Vidare undersöktes ifall förekomst av psykosocial belastning i barndomen korrelerade med bedömd risk för vÄld bedömd med HCR-20 eller med brottslighet hos patienterna. Studiens sampel bestod av 10 kvinnor och 39 mÀn varav majoriteten vÄrdades enligt LRV. Data samlades in frÄn journaler, rÀttspsykiatriska undersökningar och domar samt genom enskilda intervjuer.
HÄrvÄrdsverksamheter ur ett miljö- och hÀlsoskyddsperspektiv : KartlÀggning av frisörer i Danderyd och Vaxholm och utarbetande av checklista för inspektioner
Hair care is a hygienic treatment and is supervised by the Local Environment and Public Health Committee in the municipality. According to the Swedish Environmental Code, hairdressers as all practitioners are required to take measurements to protect the environment and public health. In hygienic treatments hazards may arise from inadequate hygiene practice which spread infection. Hazards may also arise from the use of hair care products such as permanent wave solutions, bleaches and hair dyes. Some hair dye components are known to cause contact allergy, mostly in hair dressers who are exposed professionally but also in some cases in consumers.
Den svenska CleanTech-marknaden : aktörer och finansiering
This thesis describes and examines a new line of business, CleanTech. CleanTech
comprises a wide range of different types of companies and is not yet well defined. In
this thesis only the Swedish market is considered, and a variety of players on the
market are included to give the most extensive picture of the current situation. Recent
research shows that a gap has arisen between governmental financing and private
equity-investments in CleanTech-companies. This gap occurs mainly in companies in
expansive phases and causes problems both for the companies and for the line of
business as a whole.
To investigate this gap the Swedish CleanTech-business is described in terms of
earlier and existing financing, age and size of the companies and their turnover and
profit.
Kontroll för ökad kvalitet - mallar för kontrollplan-PBL, egenkontroll samt riskanalys
There are problems with poor quality, poor scheduling and poor working climate in the Swedish construction industry. Many parts have been involved, trying to solve the problem.This spring a new planning and building-law becomes final. In this law, the requirements set on the controls are greater. Hopefully this will lead to fewer construction errors. The requirements set on the working environment have also increased, forcing consultants and contractors to focus on safe workplaces.For each project requiring a building permit, an inspection plan has to been drawn.
Att försÀkra eller inte försÀkra - det Àr frÄgan : En studie av försÀkring ur ett aktieÀgarperspektiv
Bakgrund: Alla företag utsĂ€tts för risk och en bransch med mycket stor riskexponering Ă€r flygbolagsbranschen. Hur risken Ă€n hanteras innebĂ€r den alltid en kostnad och för att aktieĂ€garvĂ€rdet ska bli sĂ„ högt som möjligt gĂ€ller det att minimera denna kostnad. Vilka huvudsakliga risker försĂ€krar sig passagerarflygbolagen mot? Vilka Ă€r motiven till att de försĂ€krar sig? Ăr hanteringen av försĂ€kringsbara risker i överensstĂ€mmelse med ett aktieĂ€garperspektiv?Syfte: Syftet med denna uppsats Ă€r att utifrĂ„n finansiell teori analysera passagerarflygbolagens anvĂ€ndning av försĂ€kring som riskhanteringsmetod. Analysen sker utifrĂ„n ett aktieĂ€garperspektiv.Genomförande: Studien bygger pĂ„ intervjuer genomförda med försĂ€kringsansvarige pĂ„ fem olika flygbolag.
Fördjupad miljöriskbedömning av förorenade markekologiska system. : Integrering av kemisk, toxikologisk och ekologisk information.
AbstractThe research project Liberation, supported by the European Commission under the Environment and Sustainable Development Programme (Fifth RTD Framework Programme) aimed at developing a decision support system for ecological risk assessment of contaminated sites has proposed a tiered system including the triad method. This method integrates contaminant chemistry and bioavailability analyses with observed ecotoxicological effects in soil and groundwater. In this study the triad method was used to perform a risk characterization of a former surface treatment and metal industry, now used for the student union buildings of the MÀlardalen University in Eskilstuna, Sweden. On the site, high concentrations of copper, zinc and nickel have been detected in the soil in a preliminary investigation of contaminant levels with XRF. For performing the risk assessment of the site according to the triad method, contaminant bioavailability, soil metal concentrations and soil toxicity were determined and an ecological assessment was carried out on four selected soil samples (one reference soil and three samples with low (B), medium (C) and high (D) contaminant levels). Contaminant bioavailability was measured through leaching (ISO TC 190/S7) and biouptake tests (DGT).
Moderbolagets ansvar för dotterbolagets skulder : Avseende stödbrev och ansvarsgenombrott
Stödbrev utfÀrdas av ett moderbolag till en koncernextern part dÄ ett avtal skall slutas mellan stödbrevsutfÀrdarens dotterbolag och stödbrevsmottagaren. Uppsatsen redogör för hur stödbrev fungerar och dess uppbyggnad. Det undersöks ocksÄ vad det Àr för bakomliggande mekanism som förklarar hur avtal kommer till stÄnd och vilken betydelse det fÄr att gemensam partsvilja mellan utfÀrdare och mottagare inte finns om stödbrevets rÀttsliga innebörd. Eventuellt kan Grönfors modell om avtalsgrundande rÀttsfakta vara en förklaring pÄ avtalsverkningarna. Uppsatsen undersöker ocksÄ institutet ansvarsgenombrott.
Attitudes towards hedging by diversified and non-diversified farmers : a comparative qualitative study
Deregulation on the market for agricultural products leads to a more globalised market with increasing price fluctuations. This, in turn, places the farmer in positions influenced by new risks but also improved opportunities. The farmers are faced by uncertainty in terms of financial outcome. To be able to utilise these new market conditions it becomes increasingly important for farmers to continuously follow the price trend, and to develop strategies how to manage the risks exposed by a volatile market.
Farmers with different conditions perceive risk in different ways. Hence, their risk management behaviour will vary.
SocialtjÀnstens barnskyddsarbete En studie av socialsekreterares riskbedömningar avseende barn som utsÀtts för vÄld eller sexuella övergrepp i hemmet.
The overall aim was to examine how the public interest to protect children from violence and sexual abuse at home, is realized by social workers. The studyÂŽs central focus was the risk assessments as Social services are obliged to do when they receive a report containing concern that children are being exposed to violence or sexual abuse at home. The study addresses the following questions:o How do social workers go about practically, and what support and knowledge is being used to determine whether the Social services need to intervene for the protection of a child?o What risk and protective factors are taken into account by social workers in the assessment process?o What contextual factors do social workers experience are affecting them in the assessment process?o Which support does the documentation system BBIC provide in the assessment process?The study material was collected through qualitative group interviews, with a modified vignette methodology as tools. The study included a total of twelve social workers, with varying numbers in each interview group.
Hedgefonder : Hur kan dess risker och möjligheter förmedlas
We have in this essay studied the Swedish Hedge Fund Market available for the average Swedish private investor. We have closely looked at the risk measurements that are applicable on the evaluation of Hedge Funds today, and furthermore studied how they are communicated and what they actually contribute with in terms of risk and yield. Our survey attempts to clarify the shortcomings in the communication between the Hedge Fund Managers and their smaller investors. Do they really know where they put their money? The market is rapidly expanding and our goal was to find improved ways to inform about the Hedge Funds risks and opportunities.
Kan företag genom sin redovisningsinformation pÄverka volatiliteten i aktiekursen?: en studie av sambandet mellan informationskvalitet och risk
The purpose of this paper was to examine the potential presence of a relationship between the quality of corporate financial disclosure and the volatility in stock price in the Swedish market. This was carried out by investigating the hypothesis that an accurate annual report with high information quality results in a decrease in volatility. Previous studies have been done with this approach and in some cases the above stated hypothesis was found to be true. Thus, in the absence of a perfect efficient market the level of information quality may to some extent explain the volatility in stock price. However, the result of our study gave no evidence in support of this hypothesis.
Kapitalförvaltarnas arbetsmetodik vid förvaltandet av den diskretionÀra potföljen
Background: The devolopment in the exchange market has attract a large number of investors. The information flow is extensive and it might be hard to follow the dynamic market. Some investors therefore choose to place their capital in a stock portfolio which is manged by a professional firm with no influence from the capital owner, this management is called discretionary managing. Purpose: the purpose of the thesis is to examine the working methods and the rationality regarding the management of the discretionary portfolios. The purpose is also to try to examine whether there is a relation between the selected risk, return and fees.
En jÀmförande studie av fluiddynamiken för olika fluidiseringsmedium i en kallmodell av en 100 kW-anlÀggning för kemcyklisk förbrÀnning
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.
Asymmetrisk information, moral hazard och riskhantering ? för Venture Capital-bolag
Syfte: Studiens syfte Àr att undersöka ?venture capital?-branschen och hur omfattande problemen med asymmetrisk information och ?moral hazard? Àr samt hur risk hanteras. Syftet Àr ocksÄ att arbeta fram en hypotes för framtida kvantitativ forskning. Ansats/metod: Med en deduktiv ansats har en kvalitativ studie genomförts. Datainsamling av empirisk primÀrdata har skett genom semi-strukturerade intervjuer. Teoretisk referensram: Det teoretiska kapitlet tar upp grundlÀggande teorier kring asymmetrisk information, ?moral hazard?, ?agency costs? och riskhantering.