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674 Uppsatser om Out-of-sample forecasts - Sida 3 av 45
TaqMan® Sample-to-SNP Kit? : evaluation of kit for low-cost and fast preparing of DNA-samples before genotype analysis
Genotyping can be used to link genetic variation among individuals to certain diseases or conditions. Some known disorders and states that are dependent on single nucleotide polymorphism (SNPs) are lactose intolerance, venous thrombosis, hereditary hemochromatosis and the difference in sensibility among people to metabolise drugs.In this project a new kit, TaqManÒ Sample-to-SNP KitÔ for extraction of DNA and preparation of the extract for genotyping with real-time PCR and allelic discrimination, was evaluated. QIAamp® DNA Blood Biorobot® MDx Kit was used as the reference method.The purpose of the comparison was to find a method that makes DNA extraction from blood samples cheaper and faster, but with the same reliability as the reference procedure.The results of the evaluation showed a complete agreement of the genotype results between the methods tested, which means that the new method was as reliable as the reference method. The costs of reagents and material would be reduced with 52% if the new method is adopted, that alone would result in a cost reduction of 144 000SEK a year with a sample volume of 650 samples/month. The time for DNA extraction would also be reduced with the new procedure. .
Comparison of four transport systems for enetric pathogens
ABSTRACT: Commercial swab transport systems are used for collection and transporting of fecal and other microbiological samples. This system must maintain viability and contribute to survival of microorganisms during transport to the laboratory. Four swab transport systems have been compared, eSwab, ?- Transwab and fecalSwab, all three with flocked swabs, and Copan Venturi Transystem with rayon swabs. The study followed the recommendations from the Clinical Laboratory Standard Institute; document M40-A for recovery of Samonella, Shigella, Yersinia and Neisseria gonorrhoeae after storage for 0, 6, 24, 48 and 72 h at room- (22-25°C) and refrigerated (2-8ºC) temperature.
Kvinnliga arbetstagare i sjuk- och äldrevården - faktorer som kan påverka graden av upplevd stress utanför arbetstid
The aim of this study was to examine the relations between women?s perceived stress off the job (dependent variable), responsability for household chores, emotional support, number of children living at home, neuroticism and age (independent variables). Comparisons between the present sample and two independent samples from previous research were made with regard to perceived stress and neuroticism. The sample of this study consisted of 186 women working in the fields of health care and geriatric care. The results showed that perceived stress correlated positively with neuroticism and number of children and negatively with emotional support, though the effectsizes for number of children and emotional support were fairly small.
Driver valutakursen, energipriser och subventioner livsmedelspriserna?
Den här uppsatsen visar att valutakursen och sekundärt energipriser har en hög förmåga att prediktera framtida rörelser i livsmedelspriser, både ?inom sample? och ?utanför sample?. Uppsatsen använder VAR-modeller och hittar empiriska belägg för att energipriser påverkar valutakursen (EUR/USD), som även indirekt påverkar livsmedelspriser. Teoretiskt och empiriskt visas att export- och produktionssubventioner reducerar eller ökar de ursprungliga priseffekterna vid chocker i valutakursen, och introducering av dessa samband visades öka precisionen av prognoserna. Resultatet är intressant för policybeslut eftersom identifieringen av vad som driver livsmedelspriserna visar att chocker i valutakursen har en omfattande effekt på framtida livsmedelspriser. .
Den bortglömda arbetslösheten? : En undersökning av hur socialdemokraterna beskriver sin ekonomiska politik under 1970-, 80- och 90-talet
The economic policy of the Swedish Social Democrats has undergone major changes during the last thirty years. From using a so-called Keynesian policy to promote full employment in the economy, the Social Democrats have switched to a more monetaristic policy to promote low inflation instead. What I intend to do with this study is to see if the policy change also can be noticed in how the party describe their own policy. Have the Social Democrats been open and transparent with their change in priorities, or have they tried to hide this in their rhetoric?The purpose of this thesis is to examine if one can notice a change from a Keynesian to a monetaristic policy in the Social Democrat?s descriptions of their economic policy.
Optimisation of a method for isolation of Clostridium difficile from faeces
Clostridium difficile is a pathogen for both humans and animals and is often associated with antibiotic-associated diarrhea. Recently, several human cases of C. difficile-infection with increased mortality and morbidity have been reported. In studies performed in different countries C. difficile has been found in meat.
Analys av fysiskt och administrativt flöde för provhantering vid Höganäs AB
In this project, we are studying the material flow and the information flow of sample materials and the appurtenant report of deviation for the purpose to be able to suggest better solutions. The sample material, which is to be analysed, is to be continuously taken from the production flow. The purpose is to navigate the process by the results found by the analysis. Because of this, it's very important that both methods of analysis are ensured and that the sample material is representative for the production flow. However, even more importantly, is that activities and transportations, combined with both flows, must perform in a quick and correct way in order to maintain or improve Höganäs AB's competitive strength.According to reports are about 20 products per day not available, for loading, at the time of delivery.
Metod för beslutsstöd vid formulering och uppföljning av en kommuns klimatmål : fallstudie Uppsala kommun
The purpose of this study is to create a method that can be used to produce decisionsupport data for the climate goals of a municipality. The method should be able to demonstrate
the potential for reducing energy use and greenhouse gas emissions for measures aimed at the stationary energy system in the municipality. It will be used to make longterm
projections of energy use and greenhouse gas emissions in order to be able to demonstrate the ability to reach climate goals.
The aim was also to test the method's applicability by using the municipality of Uppsala and the Uppsala climate protocol project in a case study. Uppsala climate protocol is a project consisting of participants from business, government and organizations that voluntarily want to commit to reducing their carbon footprint by reducing their energy use and thus work to achieve the municipality's overall climate goal.
Public reporting of energy use and climate impact has been studied in order to examine the nature of indicators and accounting figures that are commonly used in the field and
how long-term forecasts are formulated. In connection to this, the type and sources for the kind of data needed was also examined.
Metod för beslutsstöd vid formulering och uppföljning av en kommuns klimatmål : Fallstudie Uppsalakommun
The purpose of this study is to create a method that can be used to produce decision supportdata for the climate goals of a municipality. The method should be able to demonstrate the potential for reducing energy use and greenhouse gas emissions for measures aimed at the stationary energy system in the municipality. It will be used to make long term projections of energy use and greenhouse gas emissions in order to be able to demonstrate the ability to reach climate goals. The aim was also to test the method's applicability by using the municipality of Uppsala and the Uppsala climate protocol project in a case study. Uppsala climate protocol is a project consisting of participants from business, government and organizations that voluntarily want to commit to reducing their carbon footprint by reducing their energy use and thus work to achieve the municipality's overall climate goal.
Data och metodik för utbytesberäkning - en studie på Medelpads Skogsförvaltning
To manage the industry?s need of wood assortments in a optimal and cost effective way the forest companies need to have knowledge of the actual standing volume and the yield of the planned clear cuts. The mean volume of the trunk is also important since it is important for the contractors prices. Today the total volume are estimated either with Näslund (1940) or Brandels (1990) functions of volumes, and the yield is estimated with Rune Ollas (1980) function for trunks and stands. The purpose of this study has been to answer the following questions: How good is the yield forecast with data collected with currently used methods? How well can the yield forecasts became with data collected according to the instructions? How well can the yield forecast be with data collected according to the instruction and calculated with the program Aptan for theoretical bucking? The study has been initiated and financed by SCA Skog AB.The material consisted of a number of randomly selected objects ready for clear cut.
Anabola Androgena Steroider : En analys om hur AAS skildras i svensk media
AbstractTitle: Anabolic Androgenic Steroids ? An analysis of how AAS is portrayed in Swedish media.Author: Jens SundénTutor: Philip LalanderKeywords: AAS, Anabolic steroids, social problems, media, drug abuse, genderThe purpose of this study was to investigate how Anabolic Androgenic Steroids (AAS) are portrayed and described in the media, how AAS is constructed as a social problem, and how society in a social context uses knowledge and power for disciplinary and educational means. The study is based on the perception of AAS as a constructed social problem and analyzes the discourses surrounding AAS depicted in three Swedish newspapers. The sample was prepared on the basis that it represents different aspects of daily Swedish press. The method used in the paper is a discourse analysis with social constructivism and gender as theoretical tools used to analyze the sample material.
??Tidsserieanalys över svensk varuhandel januari 1975 ? augusti 2010
Syftet med denna uppsats är att modellera och prognostisera Sveriges varuexport, varuimport och handelsnetto. Vi använder oss av data från januari 1975 till och med augusti 2010 för respektive serie. Dessa data testas och jämförs i olika ARIMA- och SARIMA-modeller samt skattas även medelst säsongsreningsprogrammet TRAMO/SEATS. För de modeller som bäst passar serierna genomförs därefter in sample- och out of sample-analyser med felmåtten RMSE och MAPE. Modellerna med bäst felmått och som därpå väljs ut för att göra prognoser för serierna till och med augusti 2012 är (3,1,0)x(0,1,1) för export, (2,1,1)x(0,1,1) för import samt (0,1,1)x(0,1,1) skattad i TRAMO/SEATS för handelsnetto..
En empirisk studie av Value-at-Risk-prediktering med hjälp av GARCH-modeller
This paper describes a study examining four different GARCH models AR(1)-GARCH(1,1), AR(1)-EGARCH(1,1), AR(1)-APGARCH(1,1) and AR(1)-GJR-GARCH(1,1), and their ability to predict future volatility and thereby providing more reliable estimates for Value-at-Risk. The study is based on daily observations for the return of the OMX Stockholm 30 Index, during the time period 31st December 1996 to 29th December 2006. The coefficients for these GARCH models have been estimated using a five-year rolling estimation window, with one-year lags, for five different in-sample-periods. These five in-sample-periods, and the coefficients given by them, have been used to generate five out-of-sample predictions for the volatility in each year. Using these volatility predictions, the daily Value-at-Risk has been calculated for confidence intervals of 90 percent, 95 percent, and 99 percent, respectively, during the time period between 1st January 2001 and 29th December 2006.
Vilseledande Underhållning : Ungdomars Attityder till Dold Viral Marknadsföring
In this paper, we examine the attitudes of 16- to 19-year olds towards stealth viral marketing in the form of videos posted on websites such as Youtube. Apart from their general attitudes towards the phenomenon, we were also concerned with their views on the ethics involved in this marketing method and how this affects their view on the companies behind the advertising. To accomplish this, we administered a survey to a sample chosen by convenience. Using the Persuasion Knowledge Model and prior research on the subject, we then analyzed the gathered data and reached the conclusion that the respondents in our sample were mainly positive towards stealth viral marketing in this particular form, that they generally did not consider it unethical and that even though most considered the companies to be responsible for such videos, teenagers were not likely to take negative actions against them if they found out that a video that they had seen was in fact a stealth viral video..
Ekonomistyrning i idrottsföreningar
I have always been interested in sports, so when it was time to write the paper I chose to write about sports and economic.It has led to this problem: How is the function of management control and planning problems in sports? Sports clubs are non-profit association and non-profit organizations aim to support members? moral and economic interests. A financial manager will lead the accounting department and have the final responsibility. The finance manager has to work to produce financial results, reports and custom operations (Högfeldt, 2011). A sports club use economic tools, usually budget.