Transformation of inorganic mercury (Hg) to methyl mercury (MeHg) is a biotic process that is proposed to be conducted primarily by sulphate reducing bacteria (SRB). The formation of MeHg is of great interest because it is the mercury species that biomagnifies to the greatest extent in the aquatic food webs; about 90 % of all Hg in fish is MeHg. Our understanding of factors involved in the production of MeHg is very important for making a reliable risk assessment. The purposes of this study were to investigate the different factors that control the solubility of Hg and the production of MeHg in a contaminated lake sediment. The lake Ala-Lombolo, Kiruna municipality, is well-known to be contaminated by mercury from different sources. Sediment cores were sampled at three different locations (N, SW and SE) in the lake and divided in three different layers; 0-5, 5-10 and 10-15 cm.

The heating of companies premises is today functional with electrical heating and heating offossil fuel. The energy cost for these kinds of heating in buildings has heavily increased duringthe last years and the influence on the environment has become more visual. This leads to thatenterprises today become more anxious to render energy more effective and find alternativesolutions to their ancient heating systems. This is something that Skandinaviska kraftprodukterAB in Halmstad has become aware of.The purpose with this examination is to find the most cost-efficient and environmental measuresfor the office and workshop premises of SKP AB. Where one of the bigger things is to find agood alternative for their current oil furnace, which was heating the workshop.

The purpose of this report is to find out how we can work with learners on the basis of their opportunities in mathematics. I also want to look into, how one views this question in other cultures that are different from our own. I have, in order to reach my purpose, looked on what literature there is on this matter. I have also made three interviews in a township in South Africa. The result I got from my survey was that the teachers I interviewed had a similar point of view on the teaching of mathematic as we have in Sweden.

The fungus Gremmeniella abietina causes damage to conifers that can lead to tree death. In 1999 and 2001 the pathogen caused severe attacks in Sweden, where about 500 000 ha of pine forest were affected. Trees of all ages were attacked, but mainly forests between 30-60 years that were ready for their first commercial thinning. After recommendations from the forest agency, sanitary fellings were made to trees that had more needle loss than 85%, a total of about 50 000 ha. Economic losses have been estimated to more than one billion SEK.

There is consensus in research, policy, business and many other areas around the benefits of creativity. Previous research shows that creativity is only spurred under certain conditions. Usually creativity is not associated with concepts such as control, deadline or cost effectiveness. Companies, by contrast, have the need for control and management of their operations, which implies that the two processes can be difficult to reconcile. A company that wants a high creativity while maintaining control and management is forced into a series of organizational compromises.

The increasing health problems in our society have been lifted to the surface and debated for quite some time now. Even though the statistics of bad health somewhat have dropped, the problems still remain. Many companies are wrestling with this and are suffering from huge financial losses due to the costs of people frequently calling in sick for work. This has resulted in an increasingly high expansion of different types of preventive measures in order to avert health problems. But far from all companies reach these goals and it is there for of high value to study how important resources can be used in a more efficient way.The purpose of this study is to achieve a deeper understanding for Health promotive services in companies and to understand which influential factors are crucial in the process of reaching successful strategic Health promotions.

The free choice of upper secondary school?A study of the meaning of the information channels for the choice of upper secondary schoolAuthors: David Fridner & Rikard ZeilonMentor: Ingela WadbringQuestionnaire studyDate: 2008-08-11AbstractThe choice of upper secondary school is a very important choice, both for the school and for the ninth grader. In Göteborg, the free choice of upper secondary school has generated several new information channels apart from the traditional counselor, daily news and the acquaintance. Today it is harder than ever to reach the pupil through the constant media noise and new forms of communication such as events appear. The fight for each pupil gets more and more important every term and it has now become real big business.Today?s youth is imprinted by a growing individuality and everyone knows that equableness is something very important.

The aim of this qualitative study was to examine bereaved individuals? experiences of support from their social networks and participation in support groups. The theoretical framework is based on theories about social support and parts of the attachment theory. Data were collected from four interviews and analysed by the study?s theoretical framework.

The aim of this study examines how two groups of social workers at two workplaces reflect to their own clothes in various work situations. We want to gain an understanding of the variables that affects social workers choice of clothes at work. In a qualitative approach the study is based on two focus group-interviews and four semi structured interviews. Empirically analyzes relate to Pierre Bourdieu?s "la distinction, Ervin Goffman?s "frontstage-backstage", and of Michele Foucault?s power concepts.

This study is based on how politicians? standars were represented in the debate about assisted reproduction of single women and surrogacy in Sweden. And also which arguments the politicians performed on both issues. The study was based on the protocol 2011/12:91 from the parliamentary debate in Sweden. The aim of the study was to examine political standards is identified according to parenting and family in the assisted reproduction and surrogacy debate.

This is a qualitative study made to find out individuals experience of life in the residential Kronoparken in Karlstad. The study is a part of a municipality supported project aiming to find points of improvement and work for the area's development. This study is a first step to hear in what way the residents themselves describe their neighborhood and their lives. A total of thirteen people participated in focus groups with semi-structured interviews as data collection and the study was based on an availability sample which in this case meant that citizens of the residential Kronoparken were asked to participate. Data were analyzed through thematic analysis and in the analysis three themes appeared that summed up what the participants talk about and emphasized most: a divided area, anticipation and valuation as well as a comfortable and healthy every day living.

To measure losses in a transformer with today?s methods is either slow or insecure. There s a new method developed by Alstom that hasn't been actualize in to a test-system and that has been the assignment in this project. The idea is built on a switched system and a CLR- circuit in the resonant frequency. The test-system has a calculated power-loss that make the efficiency to be as high as 99,8% and in reality over 95%.

A totally mixed ration (TMR) is a mixture of all the necessary feed components for the cow. She will eat the exact same feed in every bite which will make the rumen pH more stable and always supply her with a constant proportion between roughage and concentrate. This will make it possible for the cow to eat more dry matter (DM) a day because the fibre requirements are fulfilled. If a part of the concentrate is given separated from the mixture it is called partly mixed rations (PMR) and is almost always used when using an automatic milking system (AMS). When using TMR and PMR it is important to have a high hygiene, be accurate when mixing the feed and to look after cows in a good and strict way. The aim of this study was to document different farms with PMR in an AMS to see which routines they have and how they are managing their production.

Inspired by Kitaro Nishida?s concept of pure experience this thesis analyses Bergson?s concept of experience with the intention of showing how experience is related to duration and how this in turn destabilizes certain tendencies towards subjectivism that can be found in Bergson?s work. This is accomplished through a reading of Matter and memory, Creative Evolution and Introduction to metaphysics that tries to desintegrate both subject and object in favor of duration. The thesis arrives at describing the combination of duration and non-subjective and supra-individual experience as a polyrhythmic movement..

Inspired by Kitaro Nishida?s concept of pure experience this thesis analyses Bergson?s concept of experience with the intention of showing how experience is related to duration and how this in turn destabilizes certain tendencies towards subjectivism that can be found in Bergson?s work. This is accomplished through a reading of Matter and memory, Creative Evolution and Introduction to metaphysics that tries to desintegrate both subject and object in favor of duration. The thesis arrives at describing the combination of duration and non-subjective and supra-individual experience as a polyrhythmic movement..