When several production units provide a district heating network, water is pumped from different directions. When the flows from the plants finally meet in the network, the water can be completely still. These places are called zero flow zones. In district heating networks with several plants, which also have different supply temperatures, large and frequent temperature fluctuations can occur when the zero flow zones move. This may cause wear on the pipes, a phenomenon called low cycle fatigue.For this reason it is important to examine where and when zero flow zones that cause temperature changes occur.

Sweden is a member of the European Union (EU) since 1995. The association results in considerable proportions of the European law, also called EC-law, for Sweden. The legal system has precedence above Swedish law, which forces our national court to take consideration into and interpret the law in the light of EC-law.Sweden doesn?t possess a general legislation of discrimination. An appointed committee investigates the matter and the requirement of a common law, including all discrimination prohibits.

Photodynamic therapy is a relatively new treatment for superficial squamous cell carcinoma in cats. There are no publications indicating that the method is being used in veterinary practice in Sweden at the present time. The method uses the interaction between a photosensitive agent which has been administered to the tumor area, light of a wavelength that can be absorbed by the photosensitiser and the presence of oxygen. In this study photodynamic treatments were performed at the Queen?s Veterinary School Hopital of Cambridge University between 1998 and 2002.

Female growth, number of eggs and egg growth of Daphnia pulex were studied at four temperatures, 12, 16, 18 and 20°C. I hypothesized that female growth and number of eggs would be lower and the size of the eggs larger in the presence of a predator (kairomones) than in its absence. This effect was expected to be more evident at lower temperatures. I could not find any effect of kairomones on female growth, number of eggs or egg size, although there was a weak tendency for an effect on number of eggs. There was, however, an effect of temperature, regardless of predator treatment (i.

This paper is interested in Swedish psychiatry during the period between 1930-1950,localized to Mariebergs hospital in Sweden. The purpose of this paper has been to testSjöstroms evidence of the pattern that he used to create three analytical concepts, roughlytranslated to; morally educative discipline-treatment, the production process and the idealinstitution citizen. Sjöström motivates that his concepts gives insight into one aspect of thepsychiatric expansion between 1860-1960 as well as creates an understanding of psychiatryas an institution. The source material for this paper has been patients' medical notes writtenby the chief physician of the institution. Via a method which mainly different from Sjöstromin its selection, categorization and more thorough presentation, this paper has seen the samepatterns which Sjöström has created his three concepts from.

In an attempt to make social work evidence based, the Swedish National Board of Health and Welfare, has recommended the use of standardized methods. As there are very few instruments that are defined as standardized, we decided to compile studies made with the "Family Climate self-rating scale", FCS, that is used by the profession, although not yet validated. We were looking for conformity in results and functionality in family treatment. FCS comprises a list of 85 adjectives to reflect different aspects of the emotional atmosphere in the family. It has been used since the late 80´s and there has been no attempt to compile results of using the instrument, until now.By searching in databases and libraries we found 20 Swedish studies using the instrument, which we compared to each other.

Background: The patient meets nurses in the emergency department that provide both nursing and has medical skills. The care that the patients are receiving should be individually adjusted. The care is shaped by the individual meeting with the patient according to the nursing theorist Orlando. There are large variations between the number of patients in an emergency department and it sets high demands on the staff, both physically and mentally. When the emergency department is highly loaded there is a priority for medical care and psycho-social and aesthetic aspects will have to wait.

The purpose of this study was to evaluate the support program, given to cancer patients in order to promote their own efforts to quit smoking and to study if they kept their changed cigarette consumption 6-18 months after their cancer treatment was done.Method: We have used a descriptive qualitative method with semistructured interviews which were made in the spring of 2010 at Uppsala University. The informants in this study were smoking cancer patients which had been given radiotherapy at the oncology department at Ryhov hospital in Jönköping, Sweden.The results showed that three out of eleven informants were still not smoking after their treatment ended. All informants agreed that information about the effects of smoking on their radiotherapy were important.This study also showed that there are areas in which the support program could benefit from being changed. Of those informants who did not succeed in their efforts to quit smoking, many felt that the support should have been more direct in the sense that the staff should have followed up on their progress more frequently. These unsuccessful informants also stressed that the location for where the information was given could have been more private.

Storm water is rain and melted snow that runs off, primarily from impervious surfaces.Future storm water management is facing the challenges of increased precipitation, asclimate changes, and increased areas of impervious surfaces due to the expansion anddensification of the cities. Impervious surfaces reduce the potential for water to infiltratein the ground leading to increased surface runoff and higher peak discharge.The runoff coefficient is closely related to the percentage of impervious surfaces andrepresents the maximum percentage of a catchment that can contribute to runoff. In thisstudy, the objective was to evaluate the weighted runoff coefficient for three differenturban types; apartment buildings, townhouses and residential areas and a comparisonbetween today and the 1970`s was made.The runoff coefficient was determined by manual mapping of the different surface typesin each area based on data in the form of orthophotos and aerial photographs. The surfacetypes that were mapped were asphalt, permeable areas, tiles, sand/gravel and roof.Tiles and sand/gravel were the most difficult surface types to map. In order to see towhat extent these categories influenced the weighted runoff coefficient a sensitivityanalysis was carried out and the runoff coefficient based on surface type was changed indifferent scenarios.The results of the sensitivity analysis showed that the surface types tiles and sand/gravelhad little impact on the weighted runoff coefficient which in mainly due to the fact thatthe percentage of these surfaces types of the total area is small.The result of the study showed that the largest change in the runoff coefficient occurredin residential areas where the increase in the percentage of impervious surfaces causedby new roofs in the form of porches and garages and from paved or tiled driveways.

From embankment dams is something that has long been noticed and given rise to different questions. The most serious question is if the sludge is a result of inner erosion through the dam, and thus consists of material transported from the dam. Concerns have also been raised whether the sludge could interfere with the systems drainage capacity and thereby lead to high pore pressure in the dam, or if the measurement of seepage is disturbed, as the measuring is usually made via Thomson weirs, which could risk being blocked. The result of this investigation shows that the sludge is a result of the oxidation of iron by iron bacteria, and to the greater part consists of these oxides as well as the bacteria?s own structures. The iron oxidizing bacteria, FeOB, oxides ferrous iron to ferric as a part of their metabolism, and thereby create large quantities of iron(oxy)hydroxides.

Sweden has long had access to low electricity prices due to the wide availability of hydro and nuclear power. This has now changed because of today's rising electricity rates resulting in increasing heating costs for properties, especially in the properties with electric heating systems."Ankaret" is a parish for "Svenska Alliansmissionen", which is located at "Gullbrannagården".The parish has installed electrical radiators and an exhaust ventilation system that makes the energy demand high due to the large ventilation flows. The building was built as the price of electricity was still low and would reduce energy use today by combining its heating system with an air/air heat pump. The heat pump delivers more heat into the room than the electrical energy that it uses. This lowers the electricity needs.

Akademiska hus is a real estate company that specializes in providing Swedish universities with housing facilities for educational and research purposes. The company strives to reduce its use of energy by 40% between the years 2000 and 2025. The aim of this thesis is to determine which measures can be taken to reduce the need of purchased energy in a building that is used by theSwedishUniversityof Agricultural Sciences inUppsala.In order to determine the results of various changes to the building envelope and ventilation system, the building was modelled in the computer simulation program VIP-Energy. Other proposed changes to make the use of energy more efficient concerned water use and lighting. The need of purchased energy can also be reduced by producing electricity or heat on site, using solar energy.Results show that economically viable measures include upgrading windows and faucets, adjusting control systems for ventilation and lighting, and installing roof mounted solar panels for power production.

Over the period as a student at the Master's Program for Educational Leadership, I have learned thatsometimes the participants School?s management shows concern regarding the purpose of studyingat such a program. The curiosity of what that might devolve upon got me to immerse myself in theapproach to and attitude towards competence development within educational leadership.The essence of what I wanted to examine was how the students from the above mentioned Master'sProgram perceived the treatment they received from supervisors and colleagues and if it waspossible to explain the attitude that the participants in the study reported. I also wanted to examinewhat issues, related to competence development and leadership within the school system, highlightsthe treatment of participants in educational leadership.The results are based on questionnaires and interviews and are divided into four categories; thesupportive, the unaffected, the discouraged and finally a side category to explain how to handle thediscouraged?s lack of support.

The poultry red mite, Dermanyssus gallinae, is a common problem in poultry facilities, causing great discomfort for the hens and effecting the production economically. Few efficient acaricides are available and there is a need for new control methods since resistance has become a problem in some cases. The aim of this study was to evaluate the efficiency of the new liquid silica control agent Ectopar, on the poultry red mite. An initial in vitro test of Ectopar and its two components individually was performed, where live mites were sealed in together with filter paper impregnated with one of the three solutions prepared. The survival of the mites was thereafter recorded repeatedly during a period of 120 hours and compared to a control. For the field study, two poultry farms with different housing systems were used, one with furnished cages (farm 1) and one with a single tier floor system (farm 2).

Detta är ett 10 poängs arbete på C-nivå inom ämnet teknologi. Arbetet är skrivet inom institutionen för landskaps- och trädgårdsteknik på Sveriges lantbruksuniversitet i Alnarp. Syftet med arbetet är att undersöka vilka skador som kan uppkomma på betongdammar när vatten och betong står i kontakt med varandra. Målet med arbetet är att uppmärksamma betong som material vid anläggning av trädgårdsdammar. Arbetet inleds med en litteraturstudie där betong som material beskrivs, dess uppbyggnad och sammansättning av vatten, cement, ballast och tillsatsmedel. Därefter beskrivs de för betong vanligaste skadorna vilka är frostskador, armeringskorrosion (rostsprängning), kemiska angrepp och sulfat angrepp. Därefter genomförs tre intervjuer med personer som projekterar och sköter betongdammar i offentlig miljö för att undersöka deras erfarenhet av betongdammar.