The limit for mercury in fish, set by health authorities, is exceeded in about half of the lakes in Sweden. Methyl mercury (MeHg) is the most toxic form of mercury and accumulates in fish. Therefore transformation of inorganic mercury (Hg) to methylmercury (MeHg) is an important process that we need to understand in order to possibly counteract the negative effects of mercury in the environment. The seasonal dynamics of mercury biogeochemistry is likely of great importance for the accumulation of MeHg in the aquatic food web. In thesis the chemical speciation and transformations of Hg and MeHg in bottom waters and sediments is followed in Ängessjön, a small lake located on the east coast in the middle of Sweden. The lake is not directly affected by any industrial pollution and concentrations of Hg in the sediment reflect the atmospheric deposition in this area, as well as processes taking place along the hydrological pathways from soil to lake. Samples from sediment, bottom- and streamwater were collected in average every second month during the period Feb.

The purpose of this essay is to examine Prostitutionsgruppens ("Prostitution group") concrete operation, its organisation and how the group have changed since sexköpslagens ("sexbuy law") incorporated.Prostitutionsgruppen was founded in 1981 and have been working against prostitution. Their main goal is to reduce the damage of prostitution. Their work consists of treatment and reaching out to help prostitutes. Another part of their work is to change the public attitude towards prostitution. They act as intermediary of the knowledge they have gained through meeting people in prostitution.I have interviewed one social worker in the group and researched earlier literature.

This study contains how pre-school teachers talk about their mission as tutors and their assignments to educate student teachers in relation to the document that contains information concerning practice-based learning. The students are involved in communities of practice regarding pre-schools for children between one year and five years old. The pre-school teachers will share their daily work and pedagogical responsibility in the activities, meaning that the students are expected to show social engagement in interaction between children and adults. When teachers from the University visit the pre-school, the students are supposed to have a lesson or activity with the pupils in the practice class. And afterwards the students, the pre-school teachers and the teacher from University together have a developing discuss about the outcome objectives that the students are supposed to reach during the practice.

Purpose: The purposes of the current study were to investigate whether there were any differences in the perceptual ability between professional and non-professional ice-hockey players and whether professional players are better at distinguishing, paying attention to and concentrating on what is important during intense physical activity. Method: Twenty male ice-hockey players (10 from both the Swedish first and third divisions) participated in the study. Wingate test were used for physiological measurements while three psychological tests were presented in front of the participants. Stroop, Flanker and Fast counting tests were used to measure perceptual and coping abilities during intense physical activity and the differences between the two groups. Results: Fast counting and Flanker word 2 tests showed a significant difference between the two groups, whereby the professional groups was faster and more accurate than the non-professional group in answering.

The background for this thesis is that at the beginnings of 1980´s the National Board of Forest started an experiment of lime dressing to reduce acidification in forest soil and in ground water. The purposes of this report are to explain organization?s, government?s and private landowners viewpoint on lime dressing and vitalization fertilization, some socio-economic aspects are presented. The general conclusions are that the majority of the interested party?s are positive to vitalization fertilization but the forests owner?s in generally need much more information about this topic..

Agricultural drainage ditches are links between fields, lakes and oceans, having the potential to transport e.g. sediment and nutrients. When in a good condition, drainage ditches can act as sinks for e.g. phosphorus and sediments and prevent eutrophication downstream. The aim of this study was to determine the condition of one agricultural drainage ditch and to come up with suggestions for appropriate measures. The aim was also to determine which of the ditch?s properties that were possible to evaluate visually, which processes they represented as well as which properties required complementary physical analysis. This in order to contribute to the work of developing a method for determining the status/condition of agricultural drainage ditches.

What happens when one moves about in the city? In this essay I will explore how we through our movements create our own temporal cities. I base my investigation on Michel de Certeau's theories from his book The Practice of Everyday Life vol 1. De Certeau believes that by just walking in the city ? a mostly unconscious and for many trivial activity ? you write it, creating different types of spaces that can be understood using linguistic terms.In my essay, I develop de Certeau's theories about ordinary activities by applying them to two less ordinary ? and between themselves quite different ? spatial practices:  fare evasion on public transportation (plankning) and the urban activity of parkour.

In a time of economic turmoil and financial crisis profitability matters rise higher and higher on company agendas. Many companies are pressured to find profitability to avoid layoffs or even bankruptcy. Profitability essentially depends on the margin on the product or service sold and the costs associated with selling these products or services and hence these areas are of vital importance if companies are to improve profitability. Previous research has focused, for the most part, on product profitability while customer profitability has received less attention. This study is based on a case study of a Swedish publishing house and aims to investigate how the company?s Cost-to-Serve varies between its distribution channels.

New technology and urban sprawl have resulted in almost half of the population in Sweden being insufficiently physically active. The sedentary lifestyle causes heart- and vascular diseases, diabetes, high blood pressure, cancer, stress etc. in the population. One of the biggest priorities in the society is to promote more physical activity. Through literature studies and a questionnaire this paper will examine how we can design the built environment in order to promote physical exercise and if we can change the sedentary lifestyle with a outdoor environment that invite physical exercise. There are both internal and external factors that have importance for people?s physical activity.

A trend since the early 90?s has been that some public libraries offer a special shelf containing environmental information to the community, but it seems as though the subject has been overlooked by the literature and the science community. The purpose of this bachelor thesis is to study how three independent public libraries work with environmental information that is made available to the community. The following questions were addressed: 1) Which arguments can be found as to why the libraries offer this activity? 2) How does the environmental work at the public libraries look and what does it contain of? 3) Are there any similarities or differences in this work between the three libraries?To answer these questions interviews with librarians were carried out; observations were made to complement the interviews.

This thesis presents the results from a osteological analysis and a GIS-study aimed to examinedifferences in the located animal bones in different areas of the excavation site of Ajvde.The osteological material came from five excavated square meters on the site and was comparedwith osteological results from other researchers from different areas to create overview and try tosee differences between the areas.The GIS-study took data from all animal bone material excavated on the site, a total of about 2300kilos, and presented them in maps of spatial distribution for each layer (pictures 4, 5, 6 & appendixpicture 1) to see if there were any clusters of activity and changes between the layers. The dating ofthe culture layer and the burial field (pictures 7 & 8) were presented in maps to see if they could becorrelated with what was seen with the animal bones. Pictures of different shorelines were alsopresented (picture 9) to compare with the results that were seen in the changes of animal bones fromdifferent layers.The results of the GIS-study have shown that the activity on the site have moved over time alongthe hight differences of the land. The earlier layers show activity only on the higher elevation butlater moves down, and in the upper layers activity have been all over the excavated area. Clusters ofanimal bones were seen in the so called ?black areas? of the sites (shown in picture 2) but also otherareas contained a lot of animal bones.The results of the osteological analysis have shown that there are differences in what species arefound in different areas.

ABSTRACTThe purpose of the study was to examine, from the point of view of former research findings, what impact physical activity had on learning. I chose to make an explorative/inductive research, to get as much knowledge as possible from the studied presentation of problem, not to limit myself to a specific research theory. The result proved, that school personal and student experienced many positive effects from daily physical activities. The pupils were more pleased. There was more piece and quiet in the classroom.

This study aims to discover pedagogues perceptions of children?s sedentary behavior linked to the school and its activities. Questions that the study sought to answer was: What do pedagogues think of when they hear ?sedentary children?. How do the pedagogues look at their own and the schools responsibility? Advantages and disadvantages with sedentary behavior? Relationship between physical activity and sedentary behavior and the impact of environment connected to sedentary behavior? The study is qualitative and implemented through seven interviews with pedagogues in the schools earlier years.

This study examines the closure of public libraries, and the nonprofit organizations takeover of them as a phenomenon. The aim is to understand why the nonprofit takeover is common and what the takeover symbolizes and if the discourse in media invokes the views on libraries and the profession.Interviews were made with librarians, politicians and representatives of a nonprofit organization to study different sides of the phenomenon. Other empirical data were found in local and national newspapers and media-channels. I discovered that public libraries are highly valued by both politicians and the community. The study also showed that a library in a community makes people feel valued.

Aim?Rekryteringsgruppen? (RG) is an organisation that through co-operating with the National Health service aims at optimizing the ability for physically disabled persons to rehabilitate. RG is a non-profit organisation ?using physical and mental exercise for disabled people, mainly neurologically disabled persons.? One of the goals that RG wants to achieve is ?that the target group will be able to live such an active and independent life as possible?. As no previous studies have been done in order to review the adaptation of RG:s work and its effects on the disabled, the purpose of this paper is to examine spinal cord injured individuals perception of independence concerning situation of life, ability to function and physical activity.MethodData have been collected by using three questionnaires.