The power consumption has grown rapidlyin the last decade. Fossil fuels and theneed for alternative energy sources aregreat. Ocean waves are a renewable andsustainable source of energy that hasbeen relatively untapped. At UppsalaUniversity research and development havebeen done for several years. Severaltypes of wave energy converters (WEC)have been created.

Kaffet började ursprungligen konsumeras för koffeinets effekter, vidare utvecklades kaffet och blev en social dryck. Kaffe spreds runt hela världen och koffeinet användes som tillsatts i energidryck och andra livsmedel.Syftet är att undersöka utvecklingen av koffeinets konsumtionsmönster och sociala roll i kaffe och energidryck.Arbetet är en litteraturstudie baserad på fyra vetenskapliga artiklar som samlats in genom två olika databaser. Urvalet av artiklar skedde med hjälp av förbestämda kriterier.Resultatet visar att koffein i dryck ger njutningsfyllda effekter men även bieffekter finns. Koffeinet har utvecklats som tillsatts i bland annat energidryck samt läsk och konsumtion av energidryck kopplas till problembeteenden. Detta livsmedel konsumeras ibland med alkohol och det finns konsekvenser med denna konsumtion.

Bakgrund: Sedan mitten av 1990-talet har alkoholkonsumtionen i Sverige ökat från drygt 8 liter ren alkohol per person och år till cirka 10,5 liter per person och år. Varje år dör minst 6000 människor i Sverige av orsaker relaterade till alkohol. Majoriteten av den svenska befolkningen konsumerar i måttlig mängd men en del hamnar i ett riskbruk eller missbruk som kan leda till ett beroende. Idag beräknas mellan 10-15 % av befolkningen i Sverige ha ett skadligt alkoholkonsumtionsmönster. MI (Motivational interviewing) är en metod som används av bland annat vårdpersonal för att motivera personer till förändring i sitt liv genom egen motivationshöjning.

This bachelor-level thesis in historical osteology deals with several aspects of the life-cycle of an RomanIron Age farm in southern Scania. Excavated in the 1980's by Lars Larsson, the farm was located near aplace called Långåker in the Dybäck area, on a cape which stretched out into a minor bog. Our work concerns why the Iron Age people settled the area, how well fragmented bone survives in a bog, what they produced at the farm and how life on the farm finally ended. From the roughly 10 % of the total number of fragments we where able to identify we can conclude, that he species that are present of the farm areusual Iron Age species (dog, sheep/goat, cattle and swine). We also have a relitivly large number of wildanimals in our material (2%).

NorFor is a cooperative project between the consulting organisations owned by the farmers in the Nordic countries ? Sweden, Norway, Denmark and Iceland. The project started in 2001 and the outcome, the system for ration calculation NorFor Plan and the model for evaluating the ration NorFor Evaluation, was completed in 2006. Along with NorFor Plan economical optimization are available and according to literature, the optimization will generate a 2 öre lower feed cost per kg milk, and thereby improve the profit for the farmer. The use of NorFor Plan in Sweden for feed optimization during spring 2008 has been very small. In this study eight herds in the middle of Sweden fed half the herd according to the classical system used in Sweden and the other half according to NorFor Plan system.

För närvarande läses elmätare av en gång per år, detta leder till att kunders elräkning baseras på ett schablonbaserat belopp. Enligt riksdagens proposition 2002/03:85 skall dock alla elkunder, senast fr.o.m. 1 juli 2009, faktureras efter faktisk elförbrukning varje månad. Detta har lett till en stor marknad för fjärravlästa elmätare som nu är ett måste för att kunna utföra den tätare avläsning som krävs. E.ON ES Sverige AB som är beställare av detta examensarbetet har specialiserat sig på att installera, underhålla och läsa av fjärravlästa elmätare åt nätägare.

Chemical substances are spread diffusely and uncontrollably as a result of the increased consumption of goods. REVAQ is a certification system that works to reduce the flow of hazardous substances to Swedish treatment plants and to create a sustainable nutrient recycling. According to REVAQ, the yearly accumulating rate of metals should not exceed 0.2% in soil per year. Silver and bismuth are two metals that do not fulfill this requirement. The silver concentration in sludge decreased during the last decade, however the last few years, it has leveled off.

This thesis for the Master of Science degree was performed at Solectron Corporation in Norrköping. The background for the thesis was a need to develop and build two test fixtures to automatize testing and adjusting of transmitter modules (TX-fixture) and receiver modules (RX-fixture) which are head devices in DWDM-systems. The basic elements for the test fixtures are: Test board, switch board and DC/DC board. The main function of the test board is to handle communication between the transmitter and receiver modules and supply voltage to these modules. The test board was insufficient and modified with a microprocessor to handle the communication between the PC and the receiver module.

The end of the 20th century brought a dramatic change to the music industry. The then predominant models for music consumption and sales were forever altered when the possibility to distribute music over the internet emerged. It has now become evident that it is virtually impossible to stop the distribution of digital music files. Music has turned into a non-excludable and non-rival product, which in economic terms is described as a public good. Public goods theory serves as a starting point for this study, which explores some of the factors that might explain why some consumers pay for music, while others choose to download music illegally.

Background: Oil is the most dominating source of energy of today, it constitutes for more than 40 per cent of the worlds total energy consumption. This together with the fact that stock in oil companies has soared on the stock exchanges around the world makes oil a very interesting topic to write within. In order to gain knowledge in how to value oil companies, the authors will collect information from theory and through a questionnaire. By applying the information gathered to three companies listed on the Stockholm Stock Exchange the authors will reach an objective picture of valuation of oil companies.Purpose: To investigate how shares of stock are valuated in the oil exploring and producing industry, and what specific measures and metrics that are used in the valuation of stocks in Exploring and Producing (E&P) companies.Method: By using a qualitative approach for this thesis, the authors will investigate how the valuation of oil companies works and what measures that should be applied. The authors will use a part descriptive and part explorative study.

The aim of this thesis is to try to make the mathematics content of textile handicraft visible. This is done through an attempt at integrated studies in the two subjects with 6th grade students.The main question is: In what way may integrated studies in mathematics and textile handicraft lead to making the mathematics content of textile handicraft visible to the students? This question has been divided into three sub-questions: 1. What knowledge do students have on the order of the millimeter, centimeter, decimeter and meter units of length?, 2.

This thesis consider alternatives for heating and cooling planned office buildings at Arlanda airport. The thesis is divided into three parts where the third part is a shorter synthesis of the two first. In the first part the energy demands of the buildings are modelled in a computer program. Two different building models are created, one more conventional and one with good energy properties. The results shows that with proper construction and ventilation systems etc.

This thesis was commissioned by Volvo Powertrain, where manufacturing and assembling of transmissions is performed, which is used in the company's trucks and buses. The thesis has consisted of a case study that intends to study the problem areas in the current proposed activities and continuous improvements in the assembly department in the Volvo Powertrain facility.In the current situation, the proposals that are submitted by the employees suggest mainly minor improvements. The proposals concern for example, labelling of materials boxes and holders for tools, which do not generate any significant profit for the company. Directors and executives want an increased amount of proposals with a more results-oriented type, in terms of reduced costs, time consumption and stops, and improved quality. The company would also deal with the problems that arise when implementing improvements in the production.

Syftet med detta examensarbete är att sammanställa maskinkostnader för etableringsmetoderna plöjningsfritt och konventionellt. Vi vill även titta på hur stor kapacitet som behövs på maskinparken för den tänkta gården på 600 ha åker, detta för att hinna etablera grödan inom ett rimligt tidsspektra. Anledningen till att vi valt ett företag på 600 ha är att det är den areal tröskan klarar av att avverka inom rimlig tid. Det medför att vi måste ta en del hänsyn till lägligheten och hur mycket av tiden som är så kallat ?tjänligt väder?.

This thesis includes an energy survey of the Herrgården pre-school, which has a modern heating- and ventilation system, and a comparison with Östers pre-school which has an older system. An energy survey of Östers pre-school has already been done by a group of three students and all the calculations and values have been collected from that survey. As of today, both pre-schools are heated thru district heating. It will be much easier to make smart and feasible energy-saving-measures by first conducting the energy survey.Herrgården pre-school in Gävle houses 81 children, therteen teachers, one cleaner and one cook. It was finished in the middle of 2009 and the staff has been very pleased with the in-door climate.