In Lake Vänern, Sweden, there is an endemic population of Atlantic salmon (Salmo salar L.) that lives its entire life in fresh water. The salmon is hindered from migrating to its natural spawning sites in the northern part of the River Klarälven by nine hydro-electric power plants. None of the hydro-electric power plants have fishways so that salmon migrating upstream or downstream may pass. In the current situation, the upward migrating salmon are caught in a fish trap at the most downstream located power plant in Forshaga. From there, the salmon are driven in a truck, past eight power plants and released a few kilometers upstream of the eighth power plant at Edsforsen.

The life cycle of the anadromous Atlantic salmon (Salmo salar) can span large geographic, political, and socio-economic boundaries. Management strategies and regulations that only concentrate on small spatial scales often overlook larger basin-wide problems, especially relating to post-spawn seaward migration. In this master thesis one entire migration cycle of wild adult Atlantic salmon in the unregulated northern Swedish river Vindelälven was monitored by radio-telemetry tracking during upstream spawning migration and downstream seaward migration back to the Baltic Sea. The effect of ladder passage variables (time to pass, total time in the ladder, passage day over the ladder) at a fish ladder downstream in the river Umeälven, as well as fish size, were evaluated to determine if differences in upstream migration distance in the river Vindelälven could be observed. Ladder passage variables did not affect migration distance, but size exhibited a negative relationship to migration distance.

The purpose of our thesis has been to study Social Workers view of children?s needs and how they work with children?s needs when they are orphaned because of HIV/Aids in South Africa. The question formulations we used to answer our purpose are:? What needs do the Social Workers consider the children to have?? How do the Social Workers work with children?s needs?We have a qualitative methodological approach in the thesis, where we have performed four interviews with four Social Workers on different organizations in and around Cape Town, South Africa. The presentation of the empirics is made as a summary with representative quotations, which we have interweaved with earlier research and theoretical conceptions.

After the two big hurricanes called ?Gudrun? (2005) and ?Per? (2007) in the south of Sweden, some landowners planted Douglas fir instead of the traditional Norway spruce and Scots pine. They did it for different reasons. Some of them spreading their "risk", others because they wanted better growth or to obtain a more storm-resistant stand and trees more protected against rot. In this study, survival and growth were examined on Douglas fir in 21 different locations, owned by private landowners in southern Sweden.

The survival of hatchery reared smolts is generally low after release. To get a better understanding of what variables affecting migration success, Atlantic salmon smolts were studied during their out-migration in the old river channel in the lower part of river Umeälven. The area consists of shifting habitat and complex structures which causes difficulties for smolt on their migration out to sea. The aim of this study was to try to determine the effects of feed restriction, fin conditions and different physical barriers in the river, on the migratory behavior of Atlantic salmon smolts in the river Umeälven. The river was divided into six different sections using acoustic receivers strategically deployed along the river. Two-year old hatchery-reared smolts (n=150), in three different weight classes, were tagged with acoustic transmitters.

Hybrid aspen is a crossbreed between European and North American aspen. It is a fast growing tree species that has shown strong growth in the South of Sweden. The follow-ups that have been made on hybrid aspen stands, have mainly been done on plant material in the South of Sweden. In the North of Sweden, only occasional studies have been made, and the knowledge of Northern hybrid aspen stands is, thus, unsatisfactory.In the South of Norrland, land owners have planted hybrid aspen, but what kind of plants it is, and how well these stands have established, is not ascertained, since data has not been compiled on the subject.The objective of this study is to evaluate practical plantations of hybrid aspen in the South of Norrland regarding height growth, survival and damages. The ambition is to increase the knowledge about practical plantations regarding height growth, survival and damages, and from the conclusions thereof, give recommendations for future establishments of hybrid aspen in the area.For the study, eight hybrid aspen stands in the South of Norrland were localised.

The intention of this study is to investigate why some regions, which choose to secede from their parent country, are internationally recognized and others are not. The case studies of this study are South Sudan and Somaliland. South Sudan is as of now the world?s newest state, and Somaliland is a break-away state that is considered a part of Somalia by the International community. There are conditions that have to be fulfilled, before existing nations recognize the break-away state, such as an agreement between the seceded state and the parent country, which was the case for South Sudan and Sudan.

This thesis concerns five Gotland Bronze Age cairns. They have been analyzed in order to compare their inner and outer burial - and building context. The analysis then forms the basis for the discussion of the similarities and differences observed. These five cairns along with the cairn Uggarderojr are presented in detail and compared. Major similarities were found between four of the five cairns.

The purpose of this paper is to investigate some aspects of teaching environmental issues, as they are manifested in another culture. In this paper, I will discuss how you teach environmental issues, how the teaching environment is formed, and what an environmental issue means to a South African teacher, as well as, if there are any cultural aspects to what an environmental issue is. Seven observations were made and qualitative interviews with four teachers teaching Life Science in Cradock, South Africa - The results showed that these South African teachers, independent from each other, followed a similar pattern in their teachings. These patterns contain gathering information concerning environmental issues in the immediate surroundings, as well as using the text book and teaching environmental issues through lectures. It was not possible to draw a conclusion about the cultural aspects in association to environmental issues.

The intention has been to look at the school system in South Africa and specifically at arts and culture in grade 10 to 12. I have visited a number of classes and interviewed the teachers working at the art centre PJ Olivier in Stellenbosch. By doing this I wanted to get to know the system and to understand the intentions that the curriculum describes.I have all through the study related the areas I?ve looked at to the curriculum to see how well the intentions are implemented. I have also compared everything with the Swedish school system.The curriculum has good intentions but the country has a lot to do before they reach the goals with a school system where everybody is included and where there is ?ubuntu? (Zulu word for humanity or I am what I am because of what we all are).

Utgångspunkten i detta magisterarbete inom ämnet Interaktionsdesign var att se varför barn i dagens skola tycker att skolarbetet blir tråkigare ju högre upp i årskurserna de kommer. Vidare drog jag slutsatserna, utifrån litteraturgenomgång, att någon gång i årskurs 4-6 börjar eleverna i skolan att tappa lusten för skolarbetet. Var det allt skolarbete eller bara vissa ämnen som eleverna tyckte var tråkigt? Varför var det tråkigt? Kunde jag göra något åt saken?.

Syftet med det här examensarbetet var att konstruera och formge ett armstöd med integrerad joystick för båtsätet Atlantic Seat. Projektet genomfördes vid Medinova AB som är ett produktutvecklingsföretag med fokus på ergonomi och i första hand arbetar med säten och styrsystem för snabba motorbåtar. Atlantic Seat är ett säte med god stötupptagningsförmåga och har två målgrupper i dels yrkesbåtar såsom Sjöräddningens och Försvarsmaktens båtar, dels lyxiga fritidsbåtar. Under projektet har ett systematiskt tillvägagångssätt använts i arbetet. De moment som genomgicks var informationsinsamling, problemformulering, problemundersökning, idégenerering, idébedömning samt detaljkonstruktion och formgivning.

Many watersheds have lost stocks of migrating fish species because of the development of hydroelectric plants and other fragmenting barriers. The remaining stocks of migrating Atlantic salmon (Salmo salar) and brown trout (Salmo trutta) in River Klarälven, Sweden are five times smaller compared to one hundred years ago. A fish-trap at the hydroelectric plant in Forshaga has been vital for the continued existence of the stocks. This is the first hydroelectric plant of eight, blocking the way to the spawning grounds. Spawners are collected in the trap for both hatchery and transport by truck upstream and past seven more hydroelectric plants to the spawning grounds, where they are released for possible natural reproduction.

The aim of this essay has been to study six female seniors use and view of the library and its roles. The two Danish scientists Jochumsen and Rasmussen talk about the library in terms of a social center, cultural center, knowledge center and information center. Depending on what lifestyle the seniors belong to in the social room, they use the library differently. The social room consists of four lifestyles, north-west, north-east, south-west and south-east. The things that are important to consider in order to be able to place each senior within the different lifestyles are education level, economic standard, interests and so forth.

The purpose of this essay is to study if and how five South African educators work with music as a special pedagogical tool in children's language development. To achieve the purpose of this study, two research questions were created. As method, interviews of a qualitative character were chosen.  The aim of the method is to give the educators the opportunity to think about and use their own experience before answering the questions.The result shows that the South African educators are not using music as a special educational tool. They rather use music as an everyday educational tool to promote children's language development. The result indicates that music in educational activities promotes children?s communication with each other.