Today most ice rinks in Sweden use secondary refrigeration systems with a solution of calcium chloride and water as secondary refrigerant. Due to the large amount of energy such a system uses more efficient systems would be desired.An earlier study concluded in the possibilities of using carbon dioxide as secondary refrigerant with copper tubes as the loops in the ice rink. Since then 3 ice rink refrigeration systems has been built with carbon dioxide in copper tubes. Excluding the ones being direct involved in those projects there is still very little knowledge about how these system works. This study has been made primarily with the aim of adding to the knowledge concerning availability and cost and secondary to look at possibilities for improvement.A comparison between systems with carbon dioxide, calcium chloride respective ammonium solved in water has been made by using Decision Matrix.

Abstrakt:Syftet med föreliggande akademiska studie är att kartlägga vad självskadebeteende innebär, varför det utförs och vilken behandling det finns att få. Resultatet som togs fram genom kvalitativa, semistrukturerade djupintervjuer, både med personer som själva har erfarenhet av självskadebeteende (de primära informanterna) och yrkeskvinnor (de sekundära informanterna) som kommer i kontakt med det. Resultatet går ej att generalisera då antalet informanter inte kan representera hela populationen. Goffman förklarar i boken ?Jaget och maskerna? på ett bra sätt individernas agerande och handlingar i samhället och Mead beskriver med sin teori ?The self? de primära informanternas personlighet.

This report is about Swedish statistics on work related accidents and work related diseases onboard Swedish ships. The authors analyzed collected statistics from two authorities and an insurance organization in an attempt to compare the data. In order to understand the need for statistics and why the authority publishes them; minor literature study was conducted. The results of the literature study are in the background chapter. The requirements for the different cases to be registered in the statistics have been investigated, in unity with the issue in question.

The purpose of this paper consists of examining the different ways of thinking about death and life beyond death conveyed in the game Grim Fandango Remastered. This was done by using a theoretical framework consisting of a self invented definition of death called "Bodily death". This definition consists of common notions about death such as cessation of life functions like movement, metabolism, respiration and overall cessation of brain functions. It also included cessation of vital processes, which includes the ability to make energy transfer, making reparations, for example by cell replication, as well as the waste system of the body.  Besides this, the study examines the prevalence of dualism, a conception that views the soul essential to the individual's mental state. Two kinds of dualism were investigated, simple dualism with the assumption that the individual is made up of the soul, and compound dualism, where soul and body are dependent on each other for the survival of the individual.

St. John?s wort extract is composed of a large number of components, about 150, but the most studied and interesting substance are hyperforin and hypericin. The herb is very popular and it is known for its pharmacological efficacy in numerous disorders. It is used for treatment of mild to moderated depression as an alternative to synthetic antidepressants.

The mountainous Central Asian and former Soviet country Tajikistan is the least advantaged country economically among the former Soviet Union states. Approximately 6.5 % of the land is arable in a country where roughly 80 % of the households typically own small numbers of sheep and goats. Management practices and animal husbandry in the villages such as uncontrolled breeding, mixing of animals on pastures favor transmission of infectious diseases. Brucellosis is a zoonotic bacterial disease caused by Brucella spp. The disease is endemic in Tajikistan. B.

With the digital revolution within video games, the need for Digital Rights Management (DRM) has increased significantly, alongside with the increasing problem of copyright pirates. To counter pirates, DRM was created to prevent illegal copying of software, this to ensure that the Distributors received an income for their work. DRM has, since the start of its use, been getting, a lot of bad criticism from the users of the software protected by DRM. The main function of this paper is to describe the creation and development of DRM by analysis of the vision of different groups on this phenomenon. The main questions are as follows, is it possible to define the very reason for why DRM was created and if so, can its development through time be defined too? What differences in opinions are there when it comes to DRM, counting the two major groups of creators, sellers, distributors (referred to as distributors) versus individual users (referred to as consumers)? In what way will the research results suggest that the future DRM will develop?The development has gone from solving puzzles in a handbook to start the game each time the user wants to play, to serial numbers that is needed during the installation of the game.

This thesis was conducted at Linköping University and Saab Aerostructures DPS, Linköping, and focuses on the possibilities of flexible fixturing in machining applications. The thesis is part of the research project "Koofix", which is collaboration between Linköping University and a number of companies.The thesis is aimed towards small batch production which, for Saab Aerostructures DPS, means diverse part geometry and that parts are manufactured in very small numbers, sometimes just one piece. The result of this is that expensive dedicated fixtures are made for most parts. By introducing more flexible fixturing methods to this kind of production the cost of fixtures and tooling will be reduced, and make the production more efficient.New flexible fixturing methods has been presented and evaluated through the thesis, which has resulted in three different concepts. These concepts have been the result of literature screening and study of current manufacturing process at Saab Aerostructures DPS.

AbstractBachelor Thesis, School of Economics at Vaxjo universityProgram: Enterprising and Business Development, EBD 362, Spring 2006Authors: Jens Asp, Vivianne Holmer, Carl-Marcus WahlstromExaminer: Stig G JohanssonKeywords: Services, cooperation, collaboration, customer offer, knowledgeTitle: Service firms in collaboration ? A study of the development of small service firms in collaborationNutek presented numbers during year 2005 witched show that the Swedish service sector, for the first time ever, was greater than the industrial sector. The kind of firms that develop most is small service firms without employees. The topic of interest in this bachelor thesis is to study how this kind of firms can develop. There is a great number of strategic options for firms to choose.

We have in this essay studied the Swedish Hedge Fund Market available for the average Swedish private investor. We have closely looked at the risk measurements that are applicable on the evaluation of Hedge Funds today, and furthermore studied how they are communicated and what they actually contribute with in terms of risk and yield. Our survey attempts to clarify the shortcomings in the communication between the Hedge Fund Managers and their smaller investors. Do they really know where they put their money? The market is rapidly expanding and our goal was to find improved ways to inform about the Hedge Funds risks and opportunities.

The main purpose of the essay was to evaluate whether investments in index-linked bonds were suitable investments for smaller investors on the international finance market. To determine whether the index-linked bonds are good investments, the variables yield, cost and risk were used to measure the index-linked bonds against investments in stocks and funds. The reason for the interest in this subject is that investments in index-linked bonds have grown furiously the last few years. With the growth of the investments the criticism of index-linked bonds has also grown stronger. The critics? main point is the cost of the product, and they imply that investors can create their own index-linked bond and thereby avoid the bank fees.This study used a quantitative approach, because all the data of yield, cost and risk consist of numbers.

The writing style of a particular author can be divided into many subfeatures, for example use of words, language and syntax. Focusing on the latter, this study aims to show how well syntactic information alone can attribute the correct author to a document. Syntactic information is defined as overlapping syntactic subtrees of height one (1) for all sentences of all included documents. The performance is compared to that of the previously very successful method of comparing stop word frequencies. These are words normally excluded from search engine queries, because they are present in all sorts of texts regardless of topic.

Essay in political science, C-level, by Ronak Bozorgi, fall semester 2007. Tutor:P.O. Norell. ?The affect of financial decline on politician?s activity.

Vilka diskurser ger elever och lärare uttryck för i pianoundervisning? Syftet med min uppsats är att undersöka hur pianoelever och pianolärare på kulturskolan och inom ett studieförbund genom språket ger uttryck för en mängd förhållningssätt och attityder. Vad sägs i samtalen kring deras undervisning och vilka diskurser och tankekollektiv bildar dessa åsikter tillsammans? Jag har använt mig av fyra djupgående intervjuer och två videodokumentationer för att dels studera elevernas och lärarnas uttryckta upplevelser men också för att ta del av det som verkligen sker under lektionstid. Teoretiska utgångspunkter har utgjorts av kritisk diskursanalys, institutionsbegreppet och interaktionsteori.

The aim of the study was to find repetitive behavioral patterns pre calving that could be used as indications of calving in beef cattle. In the study sixteen Standing- and lying down sensors were attached to the leg of sixteen beef cows. Ten of the sixteen beef cows gave birth to calves during the trial period. From these ten cows, data from six cows were used to assess the sensors fitness for use as calving indicators. The analytical part of the experiment was divided into two parts, calculation of divergence of mean lying time within different time intervals, and the number of lying bouts.The first part consisted of optimization of an equation used to highlight divergence in mean lying time within eight different time intervals (3, 6, 9, 12, 15, 18, 21 and 24 hours).