The short term effect of phosphorus in sewage sludge was investigated to establish howmuch of this a farmer can grant him- or herself, if using sewage sludge as a phosphorusfertilizer. Possible differences in plant availability between sludge phosphorus precipitatedby iron, aluminum or calcium integrations were studied in a sandy soil at two pH levels.The sludges were analyzed using pot and incubation trials. As the intention was to investigategrowth limitation due to phosphorus deficiency, a soil with low phosphorus supplywas chosen as well as a low phosphorus application rate. Sludge corresponding to 12kg phosphorus per hectare was applied. Treatments fertilized by sludge were compared totreatments where 0, 6 and 12 kg phosphorus per hectare from mineral fertilizer was applied.Every treatment was replicated six times.

Postoperative site infections are the second most common health care associated infection in Sweden. Surgical procedures can lead to postoperative site infection causing great suffer for the patient and an extended care time with an increased cost as a result. In preparation for surgery, it is important that the skin is well prepared with antiseptics to decrease the risk of postoperative site infection. The purpose with this study was to shed light upon the skin preparation before surgery and its significance to postoperative site infection. Ten scientific articles have been scrutinized and compiled and two themes have been identified ? the preoperative and the intraoperative skin preparation.

This essay explores how artwork in the public space can be analysed, conceptualized and described by bringing attention to site. Through an analysis of artworks in the yearly art exhibition of Fittja Open 2011, the essay draws attention to site-specific art and structures of power. The principal aim is to present not only the exhibition of Fittja Open 2011 but also other artwork in the public sphere in Fittja, a suburb to Stockholm. From this point of departure other interests evolve that concerns the "image" of Fittja. The analysis, based on research in art history, architecture, ethnology and philosophy as well as qualitative interviews, also focuses on understanding the role of site and the relations between art practice, institutions and site.The result shows that there are problems with a ruptured interface between the artwork and site.

This study investigates whether the site index curve method (SICM) and the growth intercept method (GIM) can be used for site index predictions in younger Norway spruce (Picea abies (L.) Karst.) stands than recommended by current guidelines. For SICM it was thus investigated whether the method could be used for stands younger than ten years, and for GIM it was tested whether a starting point for the intercept measurements could be used below the recommended 2.5 meter. This was tested based on measurements taken from experimental stands in Tönnersjöheden Research Forest. For GIM it was found that the method can only be used when the TH-trees of a stand have five complete intercepts above 2.5 meters. For the method to be applicable beyond this, it will be necessary to adapt the underlying equations, perhaps following the Canadian example where a 1.3 meter intercept start is used. In conclusion it is not currently possible to apply the approach beyond the current recommendations. For SICM, SI predictions are accurate for the study area already form year three.

Sewage sludge contains plant nutrients and has earlier been utilised as fertilizer to cropland. Unfortunately not only plant nutrients but also heavy metals, pathogens and organic contaminants tend to accumulate in sludge. The suitability to use sewage sludge in agriculture has therefore been subject to several discussions over the years. The Swedish food industry does no longer accept sludge as fertiliser for Swedish producers. In 1999 the Swedish parliament accepted several objectives for environmental protection. In order to prevent environmental pollution and further exploitation of the earth crust, one of these objectives confirm that phosphorous from sewage shall be recirculated to arable land.

This essay explores how artwork in the public space can be analysed, conceptualized and described by bringing attention to site. Through an analysis of artworks in the yearly art exhibition of Fittja Open 2011, the essay draws attention to site-specific art and structures of power. The principal aim is to present not only the exhibition of Fittja Open 2011 but also other artwork in the public sphere in Fittja, a suburb to Stockholm. From this point of departure other interests evolve that concerns the "image" of Fittja. The analysis, based on research in art history, architecture, ethnology and philosophy as well as qualitative interviews, also focuses on understanding the role of site and the relations between art practice, institutions and site.The result shows that there are problems with a ruptured interface between the artwork and site.

The aim of the study was to investigate if methane emission in a constructed wetland changed in a diurnal pattern correlating to temperature, humidity or light conditions. The gas measurements were carried out with a static chamber technique. The wetland (in Nykvarn outside of Linköping, Sweden) takes care of wastewater to reduce the nitrogen loads. Measurements were carried out at three different occasions in the summer of 1998 on two sites in the wetland. One site was close to the inflow, inhabited by Lemnaceae, and another site was located further downstream inhabited by the emergent macrophyte Typha latifolia.

The short term effect of phosphorus in sewage sludge was investigated to establish howmuch of this a farmer can grant him- or herself, if using sewage sludge as a phosphorusfertilizer. Possible differences in plant availability between sludge phosphorus precipitatedby iron, aluminum or calcium integrations were studied in a sandy soil at two pH levels.The sludges were analyzed using pot and incubation trials. As the intention was to investigategrowth limitation due to phosphorus deficiency, a soil with low phosphorus supplywas chosen as well as a low phosphorus application rate. Sludge corresponding to 12kg phosphorus per hectare was applied. Treatments fertilized by sludge were compared totreatments where 0, 6 and 12 kg phosphorus per hectare from mineral fertilizer was applied.Every treatment was replicated six times.

The aim of this essay is to contribute to a better understanding of the prehistoric site Flyhov in the province of V?sterg?tland, Sweden and its immediate surroundings from an archaeological perspective. The site contains material artistic and ritual expressions from different prehistoric periods, and its long use-history (from the Stone Age until today) shows that the site, and its remains, has attracted the interest from people in prehistory, in modern times, as well as today. With a point of departure in perspectives derived from hermeneutics and phenomenology the essay examines the site?s prehistoric remains, the use of, and the interest directed towards, the site and its remains during different time- and use-horizons and how these horizons have been affected and intertwined with each other, in a manner where earlier material expressions have affected people and their new expressions.

AbstractThis report describes our ten week long thesis work which is the last task in our education in mechanical engineering at Linköpings University. The project has been performed at Siemens Industrial Turbomachinery AB?s service department. The company which is located in Finspång produces, sells and provides service for steam and gas turbines around the world.The purpose of this project is to help Siemens develop their maintenance programs for two of the auxiliary systems which are a part of the complete steam turbine system. These are lube and control oil systems.The project is restricted to two of Siemens maintenance products, No Stop Check (NSC) and the annual Safety Inspection (SI).

This paper concerns the treatment of people at execution places and it is focusing on Gotland and the execution place called Galgberget. The material in the paper comes from Galgberget and a gallow in Denmark called Slots Bjergby. Together with this the laws of Gotland during the medieval and later periods are discussed and also how the archaeological material (especially the buttons) found on the excavation site can help to understand the people buried on the gallow site. The result of the analysis shows that the laws and the material found on the excavation site often tells different things. The punishments are often softer then what the law says.

The aim of this study was to in laboratory experiments investigate how addition of urea, ECOX and structural materials can optimize sanitization during composting of sewage sludge. Today we strive for a sustainable society and the importance of closing the nutrient loop increases. It has therefore become even more important to safely reuse plant nutrients from human excreta to agricultural land. Partly because it increases the sustainability of society as the world's supply of many nutrients are finite, partly because it promotes human health, both by reducing disease transmission and by increasing Agricultural production. An untapped resource such as sewage sludge that is rich in nutrients and humus-forming materials could replace parts of the commercial fertilizers used in Sweden today. owever, sewage sludge contains undesirable substances such as heavy metals and drug residues, and pathogenic microorganisms.

One of the aims of this report has been to make an inventory of the building trade market to see which document handling systems that are available. The secondary aim was to document the users´ demands on the systems and other demands such as quality assurance. After this, the document handling systems Byggnet and Lotus Notes, which are rather complex systems, have been analysed. Finally a recommendation has been made. In the inventory of the marketthe internet has been used because it is there the latest information can be found.

During thousands of years, reindeer have adapted to living under harsh conditions with large seasonal variations in climate and forage availability. This adaptation implies that body functions and nourishment needs are strongly bound to the season. In the summer the reindeer has to maximize food intake to build up fat and protein reserves for the winter. More than 200 different plant species are included in the reindeer diet, but since reindeer have an unique ability to use the nourishment in lichen, different lichen species make up a large portion of their winter diet in many areas. Fundamental for reindeer husbandry is access to natural grazing during most of the year.

Sveaverken is a company who manufactures products and equipment for the modern farm enterprise within grain, pork and horse businesses. A large share of Sveaverken's turnover depends on the role as a subcontractor for Delaval within the areas ventilation, manure handling and feeding systems. Sveaverken wants to investigate the possibility to increase sales by establishing new sales channels, for example e-commerce This thesis is an analysis of the Swedish farmers use of internet, attitudes towards e-commerce and Sveaverken's interest within this area. There is also a minor economic analysis of the cost of establishing the e-commerce site. The study focuses on farmers who are potential customers to Sveaverken within Sweden. To examine the farmers opinions about internet and e-commerce a questionnaire was developed and sent out in November 2006, to 500 farmers of which 45% answered. The results show that the average age of the farmers was 42,5 years.