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..

Studiens syfte har varit att undersöka hur två gymnasieskolor med olika huvudmän arbetar med elevinflytandet och elevers påverkansmöjligheter och hur detta kan förhålla sig till begreppet en likvärdig skola. Fyra kvalitativa djupintervjuer har gjorts med två rektorer och två elever på skolorna. Den teoretiska utgångspunkten för studien har visat att skolorna gått igenom olika faser kring elevinflytandet som liberalisering, transition och konsolidering vilket ses som en demokratisk lärprocess för att utveckla elevinflytandet. Resultatet visar att rektorerna arbetar på olika sätt med elevinflytandet där såväl formella och kollektiva som informella och individuella påverkanskanaler, används för att säkerställa elevinflytandet. Eleverna på skolorna hade möjligheter att påverka liknande intresseområden som exempelvis skolmiljön och undervisningsrelaterade frågor och menade att de kunde vara med och påverka och nå ett inflytande över skolan.

In order to achieve comparability, which is one of the fundamental principles of accounting, companies should be consistent concerning the accounting policies they use. Only under certain circumstances changes in accounting policies are allowed, and when there is a change in accounting policies, it is important that the change is reported in a way that assures that the financial reports still achieve comparability. The purpose of this thesis is to establish which rules and recommendations about changes in accounting policies that exist in Swedish and German law and what their meaning is. Further, the purpose is to compare these rules and recommendations and discuss their differences and similarities, advantages and disadvantages. Since publicly traded European companies will be obliged to prepare their consolidated accounts in conformity with International Accounting Standards (IAS) from 2005, I also describe the content of IAS 8 which deals with changes in accounting policies, and discuss what the consequences of this transition might be for Swedish and German publicly traded companies considering changes in accounting policies.

In today?s IT-community, consumers use the internet in a increasing rate to find information or to purchase products and services. This has led to a growth in the market, but also a greater competition between e-stores and web shops. To separate yourself from the masses has become more important, the question is; what strategy should the IT-salesman use? The meaning of this scientific study is to find and focus on witch the primary factors/aspects are, that controls and is the very foundation for the consumer making a purchase, by using the internet.

This master thesis in energy optimization was made during the autumn of 2006 at Käppala wastewater treatment plant in Lidingö, Stockholm. A preceding thesis, where all electricity consumption was mapped, showed that the aeration in the biological treatment is the single largest consumer in the plant, and it is therefore of interest to reduce this cost. The oxygen control strategy used at Käppala WWTP is working well from a nutrient removal point of view, but not from an economic one. The last aerobic zones have a very low oxygen consumption during low loading periods which give rise to enhanced dissolved oxygen concentrations with excessive costs and reduced denitrification as a result. But also during periods of normal loading unnecessary high oxygen concentration are sometimes given.By modifying the aeration control strategy three full-scale experiments have been made, with the intention to reduce the air consumption.

Internet grows, so it?s cracking, soon will all IPv4 addresses be allocated and a solution is urgently needed. The new protocol, IPv6 is the solution to this problem. With a size of 128 bits against IPv4s 32 bits gives IPv6 a huge amount of addresses to distribute. The security addition that may be added manually in IPv4 is the standard with the new protocol.

In the rate of changes condition of the market in shape of increasing competitiveness situation, local as global, this leads to that logistics has to be developed in the same rate. Logistics has been developed from the military and after the war, logistics was figurative to the companies transport- and store problems. After this, logistics had been divided up into four different time phases (the seventies to the 21:th century). All these time phases have together develop the spectacle and focus of the logistics today. Afterward further developing of the logistics approach to Supply Chain Management (SCM) and afterward SCM, Demand Chain Management (DCM) was developed in aim to secure that the right products were manufactured on the basis of the end customers real requirement and wishes.This paper is taking the aim and problem formulation as a starting point.

Several scenarios point toward a future where we are far more people on Earth than today, where most of those people will live in cities and where oil no longer dominates in the transport systems and in agriculture as an energy source and where less energy will be available to us. The report investigates what areas in traditional ecological knowledge that can contribute to the transition that follows a future with less energy and establishes three areas with the potential of becoming important: areaspecific biological knowledge in societies that are more dependent upon its surrounding environment and its natural prerequisitesthe local management of these biological resources, which often means a fair sharing and sustainable handling of the resources and which has been observed in Nobel price awarded Elinor Ostrom?s researchthe world views that lie behind how the environment is considered and managed, world views that can inspire and point toward how we in the future should formulate world views that do not give the destructive modern management of the environment It is also noted that the magnitude of the city living in the future is a historical news and that very little research has been done in how traditional knowledge can be transferred into this kind of living..

This essay discusses the problems with the high rate of long-term sickness leave among women in Sweden. It is based on interviews with six women suffering from stress-related illness. The results show that these women hardly ever recieved an explicit diagnosis and therefore did not feel that their illness was acknowledged. In the abscense of measurable symptoms they were sometimes stigmatisized and accused of simulating their problems. From this position they tried to legitimize their situation by presenting themselves as respectable women.

This diploma work was performed at the department for radiation physics at the Health University in Linköping. Its aim was to develop a method to retrospectively quantify the absorbed dose in coral. Coral is a material which suites well as a retrospective dosimeter because when exposed to radioactivity its induced free radicals are stable in time. The number of radicals is proportional to the accumulated dose so the dose can be calculated by quantifying the radicals. Therefore, coral can tell us something about the past environment and also be used in dating purposes.A young, modern coral from the Red Sea was studied and also a fossil one which I was given from the Natural History Museum in Stockholm.

I den palliativa vården ses döden som en naturlig händelse som varken ska skyndas på eller fördröjas. För personer som är sjuka kan det upplevas som skrämmande att tvingas möta verkligheten och konfronteras med sin sjukdom. Syftet med detta examensarbete var att beskriva personers upplevelser av att leva med en palliativ diagnos. Tolv vetenskapliga studier analyserades med en kvalitativ manifest innehållsanalys. Analysen resulterade i fem kategorier: att inte ha makten över sin tid och sin kropp, att vilja vara hemma och leva som förut, att prioritera det som ger mening, att vilja känna sig trygg och förstådd i vården samt att förbereda sig själv och familjen inför döden.

The Pallas cat is a small cat living in central Asia. The cat is approximately the size of a domestic cat but the Pallas cat is more stocky build and has a much thicker fur that enables the cat to live in a climate with temperatures plummeting to -50°C. The thick fur is one of the reasons this cat has been a popular game for hunters in the past. Nowadays there are other threats to the Pallas cat. One of the major threats today is the reduction of food sources.

This report is produced with Nätraälven forest owner association. This forest owner association has been going through some changes the last years and therefore wanted to investigate what the members thought about the development. The main purpose of the study was to gain knowledge about the attitude of the members. The study was made with a questionnaire that was purposed to investigate the member?s opinion on their own cultivation and the view on Nätraälven as an organization. The questionnaire was sent to 110 members.

En enkätstudie genomfördes bland arbetslösa i åldern 18-30 år som var inskrivna på kommunala arbetsmarknadsenheter i syfte att undersöka sambandet mellan skolutbildning och arbetslivserfarenhet för söka-jobb self-efficacy. Resultatet visar ett signifikant samband mellan arbetslivserfarenhet för söka-jobb self-efficacy. Resultatet ligger i linje med tidigare forskning och bedöms bero bland annat på den positiva påverkan arbetslivserfarenhet har för en individs kontaktnät på arbetsmarknaden samt kunskaper om regler, attityder och normer Det finns även ett signifikant samband mellan skolutbildning för söka-jobb self-efficacy. Även detta resultat ligger i linje med tidigare forskning. Studien fann ingen interaktion mellan skolutbildning och arbetslivserfarenhet för söka-jobb self-efficacy.

Peat litter is a soft material with high absorbency. About hundred years ago many farmers in Sweden used peat litter to their dairy cows. After the World War II the use of peat litter decreased and the farmers used more straw. Nowadays (year 2007), when it is harder to find straw and sawdust to buy, peat litter is advancing again. The purpose with this study is to investigate peat as a litter to dairy cows.