Inom sjukvården används ? precis som överallt där människor sover ? sängkläder av hygienskäl. Problem med smittspridningar av typen multiresistenta bakterier (MRSA) och spridning av andra sjukdomar har drivit företag som Cellcomb i Karlstad AB till att utveckla engångssängkläder för att förhindra detta. Engångssängkläderna är skyddade av en biofilm som ska ge ökat skydd mot bakterier och fungerar som en barriär så att inte vätska tränger igenom. Problemet är att det inte finns mycket till underlag för hur engångssängkläderna står sig mot vanliga sängkläder ur miljösynpunkt.

Diskussioner om användandet av embryonala stamceller är exempel på ett område där naturvetenskapliga teorier möter en diskussion i samhällshällsdebatten. Värderingar med t ex etiska utgångspunkter påverkar hur naturvetenskaplig forskning bedrivs och hur resultaten från denna forskning tillämpas. När sådana frågor, samhällsfrågor med naturvetenskapligt innehåll, SNI (socioscientific issues, SSI), tas upp i undervisningen är det angeläget att belysa att det i samhällsdebatten förekommer en diskussion där företrädare för ståndpunkter för fram olika argument i frågan. Ett sätt att möta detta behov är att designa en undervisningssekvens som innehåller en rollspelsdiskussion kring en dagordning. Ytterligare bidrag till utvecklingen av argument kan användandet av skrivramar ge.

Every place is a stage where people interact. The nature of the stage and its scenography to some extent shapes the interaction. Considered as a place, the school ground gives rise to many varying expectations. Lower school pupils often have clear ideas of how they are expected to behave and how they are expected to use the place. But as the pupils age, the purpose of the school ground grows less obvious.

This work is a GIS study of fishing rights distribution between different categories of ownersand properties in the Stockholm Archipelago. The purpose was to create basic data used toestablish fishing laws and restrictions within the Stockholm County.Stockholm?s archipelago consists of a unique environment and is the natural life andreproduction environment for ? of Sweden?s reproducing fish species. The increasingpressure from fishing, tourism and weekend population increases the need for an efficientfishing administration to prevent impoverishment and to ensure the biological diversity inSwedish fishing waters. There is an increasing need to review fishing administrationmethodologies, as well as studying the categories of ownership and properties located insensitive areas and areas influenced by physical disturbances in order to establish effectivelaws and restrictions.The Swedish fishing rights for an area are currently not connected to the ownership of theproperty to which it belongs.

Biodiversity consists of all life on Earth and in all forms. Biodiversity is often discussed at three levels: ecosystem, species and genetic variation within species. Biodiversity also provides many of the ecosystem services performed by nature and that we depend on, including cultural services such as aesthetic values, education and recreation. In Sweden the environmental objectives are central; there are 16 environmental quality objectives, and "A rich plant and animal life" is one of them. Conservation and sustainable use of biological diversity is a prerequisite for achieving also most other environmental objectives. Another environmental quality objective that is tied to a rich biodiversity in cities and biodiversity is "Good built environment" where cities, towns and other built environment should provide a good living habitat and contribute to a good environment.

Durban, South Africa?s third-largest city is a socially segregated post apartheid society, struggling with high unemployment and AIDS. The city becomes even more complex with a changing climate, creating an influx of people to the city, putting scarce resources under further stress. Warwick Junction, an important transport hub in the centre of Durban, holds a large site of informal trading alongside the formal markets. This informal sector generates large financial flows and provides for a rapidly growing population. The aim of this thesis is to develop an approach that is realistic and relevant to planning and design of an urban context in South Africa.

Bakgrund: E-handel har haft en ständig ökning i Sverige sedan de första företagen startade sina verksamheter. Under de senaste åren har e-handeln visat en betydligt större tillväxttakt än detaljhandeln. Statistik visar att nio av tio konsumenter någon gång har e-handlat vilket tyder på att e-handeln idag är väletablerat bland konsumenterna. En mognare marknad har lett e-handeln in i en ny fas i den konkurrenskraftiga expansionen. Med en expanderad e-handel tillkommer nya utmaningar och problem inom logistik.

Modeprodukter har en mycket kort livslängd och modebranschen förändras snabbt. Tiden är därför essentiell och utgör en betydelsefull konkurrensfaktor. Genom att reducera tid i försörjningskedjan kan ett företag vinna marknadsandelar samt höja sin lönsamhet. RFID är en teknik som kan användas för att reducera tid samt förbättra logistiska processer i försörjningskedjor. Trots att denna teknik har börjat spridas, används den generellt inte hos svenska modeföretag.

Grasslands which have been actively managed for a long time and which in modern times have not been subject to cultivation such as fertilization are called semi-natural grasslands. These rare and species-rich areas hold an ecological, biological and historical value and if the management stops these areas will likely diminish. More effective agricultural systems and a declining number of grazing animals have in Sweden, among other countries, made semi-natural grasslands less valuable as foraging areas. Shrubs and fast growing plants rapidly colonize abandoned semi-natural grasslands, threatening biodiversity. The objective of this experiment was to determine the effects of breed and season on diet composition, with special reference to four competitive species found in wet areas ? in cattle grazing heterogeneous semi-natural grasslands ? and thereby contribute to improved management of these areas.

The mining industry, in terms of ore excavation and metal production, is and has been important to the Swedish economy. In connection with the ore excavation process, large amounts of partly sulphidic waste are produced. When the metal sulphides are exposed to air and water they are eventually oxidised, which leads to the formation of acidic water with high concentrations of metal cations and sulphate ions, so called Acid Mine Drainage (AMD). This water may reach the nearest surroundings and cause negative environmental effects. By covering the waste with soil or water, the oxidation process can be minimised. At the Rävlidmyran mine in the county of Västerbotten open pit mining took place between 1951 and 1991.

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.

The rainforests of the world are important not only to the countries in which they grow but to the world as a whole. They influence oxygen and water circulation as well as carbon sequestration which in turn affect global radiation and global warming. The forest also have great value and in Malaysia as in many other tropical countries large volumes are harvested which leaves great areas of degraded forest with little growth and biological diversity. Due to their low financial value these forests are often transformed and used for other purposes than forestry such as oil palm plantations. The trees are often transported out of the forest using large bulldozers. They are heavy which causes compaction of the forest floor and during transport the top soil layers are moved to improve mobility.

In Europe poplar plantations has been planted for more than one hundred years. In the first plantation was made in 1940. The interest for poplars has since then shifted over the years and has for long periods been very low but is now slowly increasing again. The main reasons why poplars are becoming more interesting are because of their great production potential. Nevertheless, the knowledge of how to mange poplars in Sweden are very low and very little research has been done concerning management of the species. The objective for this study was to; 1) investigate and document experience and results obtained in practical Swedish forestry, 2) to give a fair picture of the perceived advantages and disadvantages that the poplars has for the forestry, 3) document what the foresters that has experience and those who has no experience of poplar plantations thinks about the potential of poplars.

Syftet med studien är att öka vår förståelse för hur slöserier påverkar ett internt material och produktionsflöde i en producerande verksamhet, för att kunna ge förslag på effektiviseringar av denna process. Studien är utförd på företaget Växjöfabriken Produktions AB som är beläget i Växjö och utför skärande bearbetning på gjutgods. Efter att ha studerat befintliga teorier skapade vi vår teoretiska utgångspunkt med det urval av teorier som vi ansåg vara viktiga för studien. Från dessa genererade vi en analysmodell som sedan låg till grund för det fortsatta arbetet. Analysmodellen gav ett strukturerat arbetssätt för att samla in empirisk fakta från företaget som vi sedan använde för att göra en analyserande jämförelse med vår teoretiska utgångspunkt.

The New National Elevation Model (NNH) is a new high-resolution digital elevation model (DEM) of Sweden from airborne laser scanning. It creates many new opportunities, particularly in the area of flood mapping. NNH is provided by Lantmäteriet in two formats, both in raw LIDAR (Light Detection and Ranging) data and in grid format with two meter resolution. These alternatives have advantages and disadvantages and the aim of this thesis research is to identify these. One of the focuses of the study is data storage and thus data structure analysis, resolution and storage facilities. The research questions are:Why and in what context the different NNH-products from the National Land Survey are used (DEM 2+ or point cloud)?What constraints and opportunities are created by the different options, mainly in terms of different software, resolution, and data storage?The study area is Kärsön in Ekerö municipality located in Stockholms län and has an approximate area of 25 square kilometers. The study is divided into two parts. The first objective is to identify the consequences of using different software to create DEM from pointcloud compared to the DEM2+ model. Height models with a two meter resolution are created in FME and ArcGIS. The models are then compared with the grid from Lantmäteriet, created in TerraScan. The second objective is to examine the impact of the change in resolution, both the storage aspect and both the accuracy aspect. Inverse Distance Weighted (IDW) is an interpolation method which in previous studies proved to have the best results on high resolution LIDAR data. This model was tested and compared with a model from FMEs built-in function and the model from Lantmäteriet wich are based on triangulation (also proved a good method in previous studies). The grid created in TerraScan has good properties such as accuracy.