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.

Tomato production is a common and important agricultural activity in Nicaragua. During the last decades tomato producers have suffered great yield losses due to begomoviruses (family Geminiviridae). The genome of begomoviruses generally consists of two circular ssDNA components, DNA-A and DNA-B. Tomato yellow leaf curl virus (TYLCV) is an example of a begomovirus with only one component. An approach to manage the virus epidemics has been to breed a cultivar with begomovirus resistance genes, which have been transferred from wild tomato.

The purpose of this essay is to analyse how and why culture and tradition is created and maintained within a minor student society at a Swedish university by looking at its history. The West Coast Nation student society provided the material which was subsequently analysed and three sociological perspectives were applied in order to give the study a theoretical base. In order to investigate the purpose of the society, durkheimian theories on functionalism were applied. Moreover, Bourdieu?s thoughts on social fields were used as well as Elias? theories on the established and the outsiders.

The aim of this research is to find out what environmental impact a wave power park has on the Swedish west coast by creating a consultation paper (?Samrådsunderlag?) for the Lysekilproject at Uppsala University. To highlight the complexity of the problem a system analytic approach was used and illustrated by a Causal Loop Diagram.The overall assessment of the Lysekilprojects wave power park at the Swedish west coast is that it will have a low impact on the environment. This is due to the relative small size of the wave power park and some technical solutions made with the environmental aspect in mind. Artificial reefs and a sanctuary for marine species are effects created by the wave power park and in the longer term the impact will give access to an untapped source of renewable energy, wave energy.

Due to exploitation of the world?s rivers, the upstream migration of anadromous species is frequently delayed or even prevented. To mitigate these problems and allow fish to migrate past obstacles, structures such as fish ladders have been developed. However, recent studies show that many of the present fish passage facilities are deficient. Monitoring and evaluation of passage facilities is therefore crucial to enable necessary adjustments.

A large number of rivers in northern Sweden have hydropower developments that cause negative effects on both up- and downstream migrations of anadromous species like Atlantic salmon. So far, most attention has focused on the hindrances of adult fish during their upstream spawning migration. However, since turbines in power stations cause losses on downstream passing fish, the focus on negative effects on smolts has increased. The aim of this study was to compare three different causes of losses of salmon smolts passing downstream through a power station area in the flow-controlled River Åbyälven in northern Sweden.A total of 61 wild salmon smolts were caught and radio-tagged in the River Åbyälven during their downstream migration in June 2009. The salmon smolts were released at three locations, 1.1 km upstream from the power station, in the turbine intake and in the upper part of a fishway, acting both for up- and downstream fish passage.

Sub Saharan Africa has during the last decade become the world?s fastest urbanizing region. This change is concentrated to a few metropolitan areas one of them being Dar es Salaam, the largest city of Tanzania. Since the 1960s Dar es Salaam has grown from being a relatively small coastal city of approximately 300 000 people to become a bustling urban centre of four million inhabitants. This development has had a major impact on the city structure, which in turn has affected people?s welfare and the surrounding environment. One such consequence is the detrimental loss of urban vegetation and open areas in the city.

Den termohalina cirkulationen är en global havscirkulation driven av densitetsskillnader, som gör att varmt vatten transporteras mot polerna och kallt vatten mot ekvatorn. Densiteten påverkas av temperatur och salinitet (och tryck, som vanligtvis ignoreras). Därför heter cirkulationen termohalin. Saliniteten minskar när vatten tillförs genom nederbörd, havsissmältning eller landavrinning. Saliniteten ökar genom avdunstning och isbildning.

To better understand how various factors affect the establishment of forest and trees around the tree line-ecotone, this study was conducted in Troms County, Norway. The altitude of different forest and tree limits together with the surrounding vegetation type were collected during August 2011. Comparisons of the collected data were made with previously collected data from the same sites conducted 1914 and 1915. On average the forest limit has expanded with 26 meters in altitude, however, an expansion is not statistically significant for the whole area. The tree limit has significantly expanded in altitude.

Cameraria ohridella, the chest-nut leaf miner, is a new pest in Sweden. These moths make leaf mines on chest-nut trees, preferably on Aesculus hippocastanum, which results in brown blotches on the foliage and early loss of leaves. Since the first observation in Macedonia in 1985 it has spread rapidly through Europe. The moth arrived in Sweden in 2003 when it was observed in Malmö and surrounding areas. In this paper a literature study describes the morphology and life cycle of the chest-nut leaf miner. Further more a test with pheromone traps examining the number of generations in Sweden is shown.

The way we design our cities today will affect the living conditions for future generations. Planning as a discipline can become crucial to attain a sustainable urban development with an increased quality of life among the urban population and an improved environment. Urban Agriculture in the Sustainable City -a case study in Managua is a Diploma Work that deal with poverty issues, aspects of sustainability and development work. We have had a theoretical starting-point, but our focus has been on the case study i.e. the practical part, that we carried out in Managua, the capital of Nicaragua. Today about half of the worlds 6,3 billion people live in cities. The demographic growth of the countryside has declined, while the population in the cities is considerably increasing.

This master's essay is about seasonality in Bristols slave trade until the American Revolution 1776. The essay uses the Voyages database as the primary material. The essay's method is to study monthly distribution at different points of the slave trade ? the departure from Bristol and the arrival at the American destination. The seasonality of slave purchases in Africa is primarly studied through the monthly distribution of departures from Bristol for a specific region in Africa.

The Pitted ware dwelling site Ajvide on the west coast of Gotland in the Baltic Sea is, because of its long continuity from the late Mesolithic to the middle of the Scandinavian Bronze Age, an interesting research object concerning Stone Age in the Baltic area. In this essay, a comparison between two activity areas on Ajvide have been carried out in the purpose of finding out what these areas may have been used for during the middle Neolithic.  It has been showed, through zooarchaeological analyses of animal bones, that the areas most likely are depositing sites for slaughters refuse and food debris. If it is a result of everyday or more ceremonial activities is left undetermined..

In this bachelor thesis an attempt is made to recreate the shoreline of Gotland during the Bronze Age. This has been done with the help of GIS to analyze remains dated to different periods of the Bronze Age that have been situated close to the coast. Case studies of three areas of the island have been made where dated remains together with typical Bronze Age remains like cairns and ship settings are analyzed with variables such as height over sea level and geological and topographical information. Contemporary datings from each case study have been compared to find a possible shoreline for both early and late Bronze Age. Two shorelines, one for the early Bronze Age and one for the late Bronze Age, have been created and tested on the three areas to see the placement of the remains in relation to these coastlines..