In this paper I study how the repeal of the Swedish wealth tax (1 of January 2007) has affected people´s labour supply behaviour. This particular issue is relevant because it may help us understand some of the effects of the earnings tax changes that have taken place in Sweden. Accoring to standard economic theory a repealed wealth tax is similar to an income effect for the persons who previously paid the tax. That means that they theoretically will want to consume more leisure, that is decrease their labour supply. The method I am using to test this hypothesis is a difference-in-difference approach where the treatment group consists of persons who previously paid the tax and the control group of comparable persons who did not pay the tax.

Development and accuracy tests of advanced exchange trading systems require well adjusted tools for testing. Aptness of these tools are probable to have a major impact on identification of bugs and verification of new functionality. Identifying erroneous parts and bottlenecks of the trading system is of outmost importance for the exchange as a whole since stability and correctness are two of the determinant factors its viability is measured by. This paper covers how this test-tool was created and the motivation behind the design choices made. The tool was created with the goal to be broad enough to cover the majority of cases that could arise, fast enough to be able to test the trading systems speed limitations (i.e.

Vi behandlar i denna uppsats metoder för att minska transaktionsexponering vid utrikeshandel. Uppsatsen är skriven på uppdrag av ett fallföretag och problematiken kring transaktionsexponeringen sätts i relation till deras situation. Syftet är således att utifrån fallföretagets situation beskriva teorier kring området och genomföra ett test för att komma med förslag på en säkringsstrategi för företaget. Vi har tagit del av en riskanalysrapport från företaget samt haft öppna intervjuer med ekonomichef och controller. Vidare har vi laddat ner data från Sveriges Riksbank och Datastream.

The aim of the study was to examine how background factors, such as abuse earlier in life, affect depression and suicidal behavior, amongst persons who abuse alcohol or illicit drugs. The study was performed at the Social Service Center, Södermalm, department for adults. The data used in the study is based on Addiction Severity Index interviews (ASI) and includes 560 observations. The statistic methods used to analyse the data is chi² test and the result is presented in cross tables and charts. The main findings were that experiences of psychological, physical, or sexual abuse, earlier in life increase the risk for major depression and suicidal behavior later in life.

Abstract PurposeThis thesis aims to focus on how master students administer scholarly articles after they have found them. The purpose of the study is to detect how and to what extent people administer their articles from a personal information management-perspective (PIM).MethodTo answer the research questions, a web-based questionnaire survey was distributed which was announced to around 2,000 master students from different universities in Sweden. Most of the items in the survey focused on individual storage methods. The respondents were asked to rate the frequency of their different information administration behaviors on a seven level Likert-type-scale. Subsequently, items concerning specific information administration behaviors were posed, followed by questions on the respondent's sociodemographic status.

Användartillfredsställelse har visat sig vara ett viktigt mått på informationssystems framgång. Mycket forskning om användartillfredsställelse med traditionella informationssystem har utförts. Data Warehouse är dock ett nytt fenomen som på flera sätt skiljer sig från traditionella informationssystem. Denna uppsats syftar till att utforska vilka faktorer som är viktiga för användartillfredsställelse med Data Warehouse samt att diskutera kring dessa faktorers betydelse. För att kunna göra detta har en flerfallsstudie med fem användare utförts.

The study has got three aims. The first purpose is to implement the Newman et al.s rampage theory (2004) in a more dominant European context. In this way, the theory?s strengths and weaknesses can be exposed. The second objective is to look at the motive.

When developing software that is meant to be distributed over several different computers and several different networks while still working together against a common goal there is a challenge in testing how updates within a single component will affect the system as a whole. Even if the performance of that specific component increases that is no guarantee for the increased performance of the entire system. Traditional methods of testing software becomes both hard and tedious when several different machines has to be involved for a single test and all of those machines has to be synchronized as well.This thesis has resulted in an exemplary application suite for testing distributed software. The thesis describes the method used for implementation as well as a description of the actual application suite that was developed. During the development several important factors and improvements for such a system was identified, which are described at the end of the thesis even though some of them never made it into the actual implementation.

In this paper I study how the repeal of the Swedish wealth tax (1 of January 2007) has affected people´s labour supply behaviour. This particular issue is relevant because it may help us understand some of the effects of the earnings tax changes that have taken place in Sweden. Accoring to standard economic theory a repealed wealth tax is similar to an income effect for the persons who previously paid the tax. That means that they theoretically will want to consume more leisure, that is decrease their labour supply. The method I am using to test this hypothesis is a difference-in-difference approach where the treatment group consists of persons who previously paid the tax and the control group of comparable persons who did not pay the tax.

The predominant forestry harvesting method is based on the harvester-forwarder method, theharvester folds, branches and cuts trees, and sorts the logs into piles, while a forwarder transportsthe logs to a landing area.This master thesis work is about realization of a dynamic forwarder simulation model, and itspurpose is to provide an integrated forwarder simulation model in MATLAB/SimMechanicswhere the forwarder is based on a concept using pendulum arms to connect wheels and chassis.Active suspension control is developed and implemented into the simulation model, and finallycompared in simulation with passive suspension.In a first step, an integrated forwarder simulation model is developed, containing a simplifiedforwarder model, a tire-to-ground interaction model and a test track model. The simplifiedforwarder model is based a rigid multi-body system with a spring-damper suspension of thependulum arms. The tire-to-ground interaction model calculates the reaction forces, friction fromthe ground and applies the propulsion force. The test track model is a simplified version of thereal test track in Skogforsk. The propulsion wheel torque control is used to regulate theforwarder speed.

Public concern about the release of toxic compounds from wood-based products drives legislation towards enforcing industries to find and use more sustainable solutions for wood treatment. Plant oils are good alternatives to treat wood, minimizing or even neutralizing the impact on the environment. Wood modification with epoxidised linseed oil (ELO) and acetic acid as catalyst has proven a suitable method to impregnate and protect wood. However, the mixture presents a serious inconvenience because of the quick polymerization of the ingredients that limits its practical application. Therefore, this study was designed to evaluate an alternative method using a two-step process which bypassed the problem above.

Thymidine kinase 1 (TK1) is an intracellular enzyme involved in ?the salvage pathway? where the uncomplete parts of DNA are transformed into DNA precursors. The expression of TK1 is cell cykle specific, with the highest level during S-phase when DNA-synthesis is most active. One kind of TK1 is present in serum and an increase in TK1 activity in serum is due to either the level of DNA synthesis in the body or the number of cells dying in a state of replication. This can be used and is used as a marker for prognosis and evaluation of treatment in human patients with leukemia and lymphoma.

Studiens fokus är sovjetkommunismen och elevers kunskaper i detta ämnesområde i förhållande till styrdokumenten för gymnasiekursen historia A. I studien utreds genom granskning av relevanta styrdokument kunskapsområdets betydelse, samhällets krav, skolsystemets krav samt gymnasieelevers kunskapsläge. Detta kunskapsläge har testats genom ett diagnostiskt test på en gymnasieskola i Skåne under våren 2006, vilken valts ut som ett least likely case på grund av skolans i övrigt goda resultat. Resultaten av testet visade på en låg kunskapsnivå om sovjetkommunismen och delvis om 1900-talets historia i allmänhet hos eleverna, i förhållande till kursmålen och betygskriteriet för betyget Godkänd i historia A. Vidare diskuteras eventuella implikationer av detta resultat och förslag ges till vidare studier..

Det har visat sig vara svårt att fastställa en allmänt accepterad defintion av begreppet intelligens. Kortfattat kan intelligens sägas handla om förmågan att framgångsrikt lösa nya problem. Slutsatsen idag efter över 100 års forskning om g-faktorn är rörande överens om att det är ostridigt att generell intelligens kan använas för att förutsäga en mängd olika beteenden. Syftet med denna uppsats är att beskriva huvuddragen om forskning kring intelligensen och mätningen av intelligens. Det andra syftet är att definiera validitet och reliabilitet i arbetssammanhang.

Inledning: Surdeg är idag en trend som fångats av många och de flesta bagerier ochdagligvarubutiker säljer bröd som kallas för surdegsbröd. Ett traditionellt surdegsbröd är ettbröd där surdegen används som enda hävningsmedel i brödet.Syfte: Syftet var att undersöka skillnader i sensoriska egenskaper, utifrån ettkonsumentperspektiv, samt GI-värde mellan surdegsbröd, jästbröd och bröd bakat på bådesurdeg och jäst.Material och metod: Metoderna som användes var två olika konsumenttester för att bestämmaskillnader mellan de tre bröden, och en in vitro-metod för att bestämma GI-värde.Resultat: Resultatet visade att konsumenter känner skillnad mellan surdegsbröd och jästbrödoch mellan surdegsbröd och bröd bakat på både surdeg och jäst men däremot inte mellanjästbröd och bröd bakat på både surdeg och jäst. Den syrliga smaken i surdegsbröd minskar ombrödet bakas på både surdeg och jäst. GI-mätningen genom in vitro-metoden visade att brödetbakat på både surdeg och jäst hade lägst GI medan surdegsbrödet hade högst.Slutsats: Ett bröd bakat på både surdeg och jäst är mer likt ett jästbröd än ett surdegsbröd. In vitro-metoden är inte den mest tillförlitliga för att undersöka skillnader i GI för justsurdegsbröd samtidigt som surdegsbrödets pH-värde kan ha varit för högt för att kunna sänkabrödets GI-värde.