In this paper the rate of convergence, speed of execution and symplectic properties of the time-integrators Leap-Frog (LF2), fourth order Runge-Kutta(RK4) and Crank-Nicholson (CN2) have been studied. This was done by solving the one-dimensional model for a particle in a box (Dirichlet-conditions). The results show that RK4 is the fastest in achieving higher tolerances, while CN2 is the fastest in achieving lower tolerances. Fourth order corrections of LF (LF4)and CN (CN4) were also studied, though these showed no improvements overLF2 and CN2. All methods were shown to exhibit symplectic behavior..

Technology evolves quickly, with innovative ideas growing everywhere. Still, no technology is anywhere near challenging the mouse and keyboard for navigation of your standard computer. This study focuses on comparing the traditional technologies of mouse and keyboard with the new technology of gestures - in this case Leap Motion - in purpose of finding how the usage differs and what the potential users want from the competing technology. The experiment was executed in a controlled environment, with as few external factors as possible. We found that although the test subjects found Leap Motion fun, the test subjects do not want to surf the web with gestures.

Technology evolves quickly, with innovative ideas growing everywhere. Still, no technology is anywhere near challenging the mouse and keyboard for navigation of your standard computer. This study focuses on comparing the traditional technologies of mouse and keyboard with the new technology of gestures - in this case Leap Motion - in purpose of finding how the usage differs and what the potential users want from the competing technology. The experiment was executed in a controlled environment, with as few external factors as possible. We found that although the test subjects found Leap Motion fun, the test subjects do not want to surf the web with gestures.

The natterjack toad (Bufo calamita) is one of three species of toads living in Sweden. During the last decades declines in population numbers have been detected and are thought to be primarily due to loss of habitat, overgrown breeding ponds and competition from common toad (Bufo bufo) and common frog (Rana temporaria). In 2012 20 ponds in the location of Glommeskallen in Smögen were restored by clearing the ponds from overgrowth. The aim of this study was to investigate if natterjack toads used the restored ponds and if the restoration had made an impact on the natterjack population on the location. Presence of common toad and common frog was recorded, as was the presence of eggs and larvae of any of the three species.

Sveriges riksdag är övertygad om att utsläppen av växthusgaser måste minska för att människans påverkan på klimatsystemet inte blir farlig (Naturvårdsverket, 2011). I Uppsala har kommunfullmäktige beslutat om att de totala utsläppen av växthusgaser per innevånare ska vara 45 % lägre år 2020 jämfört med år 1990 (Uppsala kommun, 2011e). För att bland annat kunna utvärdera och utveckla energisystemanalyser har Uppsala kommun, SLU och Vattenfall ett samarbete kring modellering av Uppsalas energisystem och klimatpåverkan. I detta arbete har programvaran LEAP (the Long range Energy Alternatives Planning system) använts för att utveckla en sådan modell. Modellen innehåller ett nuläge (som speglar Uppsalas energisystem så som det såg ut år 2008-2009), ett referensscenario för möjlig utveckling fram till år 2030, och ett aktörsscenario där specifika åtgärder/mål (från Uppsala kommun och Vattenfall) för att få ned utsläppen av växthusgaser modellerats. Resultaten från modellkörningen visar att kommunens mål om 45 % mindre per capita utsläpp av CO2e år 2020 inte uppnås i vare sig referens- eller aktörsscenariot..

The park at Djäkneberget and its surroundings is a beloved area in the city of Västerås. The area is one of the most popular sites for outdoor life and recreation of all sorts and it attracts different kind of people at different times during the day. The park includes a pond-system where protected species of frog and toad live and breed. These animals have been the objects for many discussions concerning whether to explore the closeby areas or not. The prospected area is situated just next to one of the main ponds and consists of valuable foundationwalls were experts predict that the frogs and toads spend the winter. The municipality has now decided to restore this area to parkland. Because of the areas fascinating history I have chosen to do some research and give a short resume about it. For example are the existing park of Djäkneberget and its founder described together with a short description of the watersystem with the watertower that is situated in the area.

The stretch from the riparian zone of a major river, through the mouth and upstream in tributaries forms a range of differing habitats. The aim of this study was to investigate the effect of these different habitats on the riparian frog community in primary rain forest in Borneo; i.e. examine whether any gradients could be demonstrated in terms of species composition, diversity and density of frogs, as well as which environmental characteristics that seem to be of most importance in forming habitats of high conservational value. A major river, Segama, and three of its tributaries were investigated. The surveys were carried out at night by searching for frogs visually and acoustically along the streams, from the shore of the Segama river and 400 metres upstream in the tributaries.

This survey is a theoretical analysis concerning didactics of literature, in which I problematize what Martha C. Nussbaum describes as ?narrative imagination?. By using postcolonial theory, more specific: Gayatri Spivaks essay ?Can the Subaltern Speak?? and her theoretical formula ?a leap into the other?s sea?, I try to answer the following question: Can ?narrative imagination? be understood as a manifistation or concretisation of ?a leap into the other?s sea??The answer that is given concerning my general question is simply: No.

I den här uppsatsen undersöks dagens romantiska Hollywoodkomedier och deras koppling till 1930- 40-talets screwballkomedier. The Proposal (2009), The Ugly Truth (2009), Leap Year (2010), samt What Happens in Vegas (2008) analyseras i syfte att urskilja likheter och skillnader dem emellan och för att urskilja en ny cykel av filmer. Det här är en genrestudie med fokus på konventioner och teman som tas upp genom tidigare forskning samt genom analys av de valda filmerna, och genom att diskutera filmernas koppling till samhället sätts genren i ett bredare perspektiv..

Transcending sound design is possible. There are unseen possibilities and a great potential for improvement and development in sound and music design ? but there is a great difficulty penetrating the obstacles that lies in the way for such development to take place and to exist. The difficulties in being negotiable and productive lies more within the limits of the audience it has to gain, than in itself. It is as though music and sound design has to evolve very slowly, in an almost evolutionary style; one step at a time, to be accepted.

Transcending sound design is possible. There are unseen possibilities and a great potential for improvement and development in sound and music design ? but there is a great difficulty penetrating the obstacles that lies in the way for such development to take place and to exist. The difficulties in being negotiable and productive lies more within the limits of the audience it has to gain, than in itself. It is as though music and sound design has to evolve very slowly, in an almost evolutionary style; one step at a time, to be accepted.

The purpose of this thesis was to examine how locally produced bioenergy may contribute to meet the climate target year 2050 in the municipality of Uppsala. The goal of reduced GHG-emissions from current 6,8 ton CO2-equivalents to 0,5 ton CO2-equivalents per capita and year, year 2050 is based on avoiding harmful penalties of an increased level of GHG in the atmosphere. By estimating available biomass in the county together with examining future technologies and emission factors for the substrates used, four possible future scenarios has been developed focusing either on electricity generation or production of biofuels. GHG-emissions of year 2050 have been calculated using the software LEAP. The conclusion is that bioenergy, depending on how it is integrated in the energy system, may reduce greenhouse gas emissions between 0.6 ton CO2-equivalents and 1.4 ton CO2-equivalents per capita or 12% to 25% compared to 5.5 ton CO2-equivalents in the reference scenario 2050. The greatest reduction is obtained if biofuels are produced in combination with energy efficient heat requirements in buildings..

At the Congress of the Swedish Trade Union Confederation (LO) in 1991 a decision was made to reform LOs politics of gender. In the new resolution class and gender were established as equal causes of oppression. This was a giant leap from LOs traditional politics, where the dimension of class had always been considered more important than gender. The present thesis discusses how gender was constructed in LOs discourse after 1990 by analysing their official publications about gender politics called Klass och kön. The key terms in the analysis are continuity and change.

Disney is one of the largest media companies in the world. They have been critizied for portrayting men, women and love relationships with stereotypical behaviours and attributes. This may lead to negative effects on childrens and adolescents perception of reality. The purpose of this study was to investigate how Disney portrays the dynamic between the characters within the love relationship in their movies launched in the 21st century. This study has examined four movies released in the 21st century containing a love relationship between a man and a woman.

The Court of Justice of the European Union has progressively revised the rule of purely internal situations to ensure a wider scope of application of the economic freedoms as well as the EU citizenship right to move and reside freely within the Union. This development, combined with the increasing importance of fundamental rights, has strengthened the family life protection of those EU citizens who come within the scope of EU law. The limit between the individuals who may benefit from a EU right to family reunification and fundamental rights protection and those who find themselves in purely internal situations has, however, become more legally uncertain. The disadvantage suffered by those who fall outside the scope of EU law is known as reverse discrimination.The 2011 case Zambrano confirmed the trend towards an increasingly generous EU law protection of family life in cases where the exercise of freedom of movement and enjoyment of EU citizenship rights is potentially restricted by a Member State measure. By contrast, in the subsequent McCarthy- case, it became clear that families in purely internal situations may only rely on national immigration and procedural law to obtain family reunification and protection of their fundamental rights.