Chlorinated aliphatic hydrocarbons (CAH´s) were used widely within dry cleaning facilities and for metal degreasing until their toxicity was discovered. PCE is still used as dry cleaning liquid. Today CAH´s are found in soil environment at places where they have been used in the past. The CAH-concentration in trees growing on contaminated land has quite recently received attention as a cheap and effective way of assessing the extent of a CAH-contamination. The method has however, not been put into use in Sweden.The aim of the study has been to investigate whether the CAH-concentration in tree cores could be used to delineate the spread of CAH in a soil environment under Swedish conditions in different seasons.

The objective of this work was to introduce measures to reduce energy and water demand at Gävle Söder 17:10. To succeed, this energy audit has been made. The work is based on collected statistics from the property owner Norrporten, measurements, literature review and through consultation with experts in the field. Two models, one for each building, have been created in the simulation program BV2 to estimate the potential of energy measures based on the collected information. The models in BV2 have been verified against the statistics of the energy consumption.With the help of calculations and simulations, seven cost-effective measures have been identified.

This report will show the energy usage of Hotel Princess in Sandviken, Sweden. When the hotel changed owner an examination of the hotels heating, ventilation and sanitary systems were done. The report showed flaws in the ventilation system, and is why the new owner wanted a closer look at the energy use of the hotel. The original building was built in the 1930s and two major extensions have been built, one in the 1950s and the most recent in the 1980s. An assumption made is that the building parts were built to the restrictions during the time. Activities on the hotel include sleep over, conference, night club, massage and swimming in the hotels pool section.

Hazel (Corylus avellana L.) is a common feature of meadows and pastures where it can grow in large populations and become very old. Is it possible to use the size of hazel stools for age determination and is it possible to use the size distribution of a population to provide information about how the land has been used? Hazel populations on ground where the lake-Water level had been lowered, has been studied to validate an already developed growth model of hazel clones. Different hazel populations, on wooded meadows affected by mowing or grazing or overgrown meadows, were studied to evaluate the method utilizing hazel as land use indicator. The growth model was used to compare the size distributions of hazel populations with historical periods, which has been important for changes in agriculture or demography.

The aim of this study has been to get a better knowledge and understanding of the way teachers are working with reading comprehension in the grades 1 and 2, which was done through description of 5 teachers way of working.The theoretical basis of this study grounds in the sociocultural perspective. I based my study on Vygotsky?s theory which claims that strategies transferred from adults to children through social interaction get internalised and then used independently. I have also made use of several theories that specifically deal with reading comprehension that allowed me to identify this area of teaching as a complex one, consisting of several elements. In order to understand a text on a deeper level a reader has to be able to infer, or read between the lines.

The energy use in a workshop company has been examined in this work in order to find areas for energy efficiency improvement. The combined oil and electricity heating in the company were compared with other alternative heating systems including cooling of the premises in following combinations:Ground source heat pump for heating and coolingDistrict heating and absorption coolingDistrict heating and low temperate surface water coolingEnergy use, operation costs and carbon dioxide emissions were calculated for the current heating systems and the three alternatives including cooling. The ground source heat pump for heating and cooling decreases bought energy with 34 MWh annually compared to current heating only. The district heating and low temperate surface water cooling has the largest reduction of operation cost and carbon dioxide. The operation cost decreases with 42 kSEK and the carbon dioxide with 43 metric ton CO2 annually.

Hur sponsring av ändamålsrelaterad karaktär kan användas för att skapa goodwill..

This thesis is a study about wether first year students in Swedish senior high schools understand the learning intentions and the matter of the subject of history specified in GY 11 introduced in July 2011. The overall question that this master tries to answer is: Do the students understand what and why they are studying history? Three classes studying the first history course in the new system answered a survey regarding five of the specified learning intentions for the course and their overall opinion of grades and level of knowledge and intentions. By measuring the level of understanding and the students? general opinion the conclusion is following.

This article starts with a review of the literature regarding the normal reproductive physiology of the mare, prolonged luteal phase and medical drugs used within reproduction of the horse, with emphasis on Ovuplant®. The purpose of this article was to measure the progesterone level in blood, of mares implanted with deslorelin acetate (Ovuplant®). The study was performed at the Department of Clinical Sciences, SLU, in Uppsala. There were seven mares included in the study. They were divided into two groups, one experimental group (four mares) and one control group (three mares).

Sydkraft Vattenkraft AB owns and operates the Traryd hydropower plant, located in the river Lagan in the southern part of Sweden. The gravity dam is classed according to RIDAS guidelines (Hydropower Industry Dam Safety Guidelines) as a class 1B dam. This means that the dam must discharge a class 1-flow which has a return period of 10 000 years. The inflow into the dam has been calculated in an earlier report to 495 m3/s, with a waterline at an elevation of 126, 3 meters above sea level. The gravity dam has a discharge system with two rectangular weirs, which results in a smaller discharge than the necessary 495 m3/s.

Several studies have examined the effects of perceived justice of preferential treatments to customers, but few have studied these effects when customers have different input. The purpose of the study is therefore to enhance the knowledge and understanding of the effects of preferential treatments to customers with varying input. More specifically, the study focuses on how perceived justice, customer satisfaction and loyalty are affected depending on the customer's input and received treatment. An experimental study with 263 respondents showed that the perceived justice and loyalty intentions among both the receiver and the non-receiver of the preferential treatment were of highest level when it was given to a customer with large input. Customer satisfaction however, was found to be of highest level when customers themselves received preferential treatment, regardless of the size of their input.

AbstractThe purpose with this paper is to describe focus in the school subject swedish through a historic perspective. The purpose is also to intestigate how a group of pupils in the last grade in upper (senior) level of compulsory school and teachers with the subject swedish thinks about the subject, what is the most meaningful to pupils in the last grade in upper level of compulsory school.The history of the Swedish school system from the 15 th century till today and the entrance of Swedich as a subject in school has been studied by literature and curriculum. With help from Mr Lars-Göran Malmgrens analysis of different swedish subjects the curriculums analyses to see which subject who appear.Pupils from the last grade in upper level of compulsory school and their teachers in the the subject swedish have answered questions in two different questionnaires regarding what is most meaningful with the subject. The result are to be present in this paper as diagram and also in ordinary text.The conclusion is that the subject swedish has changed from functionalism to formalism and then turned to a more literary education and finally towards functionalism again. The results from the questionnaire papers show that the pupils put most value in learning different skills while the teachers see the importance of both skills and developing the personality..

The objective of this work was to evaluate and compare three field methods for detection of mastitis, California Mastits Test (CMT), DeLaval cell counter DCC (DCC) and FMA2001 Farm Milk Analyzer (FMA2001). Furthermore, to investigate at what cell count level clinical symptoms of mastitis are seen, and finally to check if the clinical findings and cell counts could be related to bacteriological findings. DCC and FMA2001 are new analytic instruments to be used on dairy farms for detection of mastitis. CMT has been a widely used cow-side-test of milk quality in mastitis control efforts, but it cannot be used for estimating cell counts in scientific studies or investigations. Two hundred and eight quarter milk samples from 52 cows were analysed with DCC and CMT, and 168 of these samples with FMA2001. Microbiological examination was done on 38 milk samples with CMT scores of 4 and 5.

This master thesis has been a pilot study preceding a forthcoming project of a larger scale with the long term objective to separate the direct effect of added nitrogen on soil processes from indirect effects via trees. The aim of this study has been to investigate the allocation of nitrogen following direct injection of liquid solutions into the xylem of 40 year old Norway spruce. The field site is located at Flakaliden (64°07?N, 19°27?E), approximately 60 km northwest of Umeå, Sweden. A total of 18 trees were selected for treatment, equally divided between three treatments, potassium nitrate, glutamine and water (control).

Hallsta paper mill uses large amounts of water during the pulp and paper making processes. The wastewater is treated in two separate activated sludge processes referred to as BIO 1 and BIO 2. The main aim is to reduce the organic substance content, measured as COD (Chemical Oxygen Demand) before the wastewater is released into the environment. Since the effluent produced is very rich in organic substances, the addition of nitrogen (N) and phosphorus (P) are necessary to give satisfactory treatment results. Problems with sludge bulking sometimes occur which lead to increased levels of suspended matter and nutrients in the effluent.