A power system will inevitably be subjected to transient overvoltages, most often produced by switching operations and lightning strikes. These transient overvoltages may harm sensitive equipment without sufficient protection, but it is not an easy task to predict what transients may occur or how they affect the system. A fault occurred in a low voltage system at Forsmark 2012 and overvoltages from lightning were concluded as the probable cause. The three aims with this thesis are to develop and test a model of the power system at Forsmark 3, analyse the transient behaviour of the system when subjected to lightning surges and identify critical parameters, and lastly to provide a tool for investigating the protection of the system. The modelling and simulations were performed in the freely available simulation program LT Spice.

BakgrundMänniskors trosföreställningar, religiositet och andlighet kan ha stor betydelse för deras önskningar om bemötande och behandling i en vårdsituation. Det finns omvårdnadsteoretiker som anser att det också ingår i sjuksköterskans uppgift att hjälpa patienten att leva i enlighet med sina trosuppfattningar. Möjligheten att fritt få utöva religion kan ses som en mänsklig rättighet men finns det ytterligare anledningar till att vi bör beakta religiositet och andlighet inom vården? Kan det vara så att religiöst engagemang kan vara bra för hälsan?SyfteSyftet var att beskriva hur religiösa och andliga trosföreställningar kan påverka människors hälsotillstånd samt beskriva vad detta kan innebära för människor som drabbats av sjukdom.MetodMetoden som användes var en systematisk litteraturstudie av kvantitativa engelskspråkiga vetenskapliga studier som var publicerade inom de tio senaste åren.ResultatArtiklarna berörde religion och/eller andlighet samt dessa variablers samband med olika hälsoaspekter och olika sjukdomstillstånd. I de nitton artiklarna gick det att utläsa trettiotvå olika resultat, då andlighet och religiositet ofta undersöktes separat fick många studier fler än ett resultat.

The female dog has a unique reproductive endocrinology, with high levels of progesterone throughout the 70-day long luteal phase. In this project, markers of glucose metabolism were studied and compared from the aspects of breed group and time in oestral cycle. The parameters studied were: glucose, insulin, progesterone, fructosamine and the newly introduced analysis of HbA1c. Hba1c was also further evaluated and discussed as a diagnostic tool in canine medicine.No differences in terms of glucose markers were found between a group of purebreed dogs of various breeds compared to a group of dogs with high risk of dioestrus diabetes, namely the Norwegian and Swedish elkhounds.No differences were found between the two sample occasions, anoestrus and dioestrus, concluding that there is no need for relating test results to the time of the oestrous cycle in middle-aged intact female dogs.There were statistically significant higher values of all glucose markers in diabetic dogs than in non-diabetic dogs. When it came to HbA1c, however, there was a larger overlap between the two groups, compared to fructosamine.

This thesis examines the problems related to IT in the Swedish healthcare system, specifically the drug searching part of the electronic healthcare systems used in Sweden. The question formulation is divided into two questions: What parameters and functions are of greatest importance when performing a search on drugs, and how should these be presented in a graphical user interface? Thus the purpose is to answer these questions through developing a design concept, in the form of a prototype, which describes how a drug search can be carried out.The entry point is a central quality checked drug database that is managed and owned by Swedish county councils and regions. The problem is attacked through user-centered methods where interviews of physicians and developers, in conjunction with observations, are used to give an overview of the problem area as well as to specify a requirements specification for the prototype that this thesis aims to develop. The thesis result is a requirements specification in combination with a prototype that exemplifies how drug searching can be performed, the prototype is based the requirements gathered from the interviews with the user group of physicians..

Bakgrund: Antalet ?ldre multisjuka ?kar vilket st?ller kompetenskrav p? personal som v?rdar dessa personer. M?nga har insatser av kommunal prim?rv?rd vilket inneb?r att samverkan mellan regional och kommunal prim?rv?rd ?r central f?r god, s?ker och personcentrerad v?rd, vilket uppn?s bl.a. genom uppr?ttande av individuell v?rdplan.

En upphandlande myndighet har en skyldighet att fo?lja upphandlingslagstiftningen na?r myndigheten upphandlar varor eller tja?nster. Vid rena lago?vertra?delser eller vid otilla?tna direktupphandlingar kan myndigheten bli skadesta?ndsskyldig. Skadesta?ndet har ba?de ett reparativt och ett preventivt syfte och ra?ttsmedlet skadesta?nd syftar till att sa?kersta?lla en effektiv tilla?mpning av upphandlingsdirektiven sa? att EU-ra?tten fa?r fullt genomslag i nationell ra?tt.

L?nder v?rlden ?ver intresserar sig f?r hur det g?r f?r deras elever med l?sf?rm?gan, n?got som resultat i internationella m?tningar som PISA och PIRLS kan ge en indikation om. Vad som p?verkar en elevs l?sf?rm?ga ?r m?ngfacetterat. Viss forskning st?djer resonemanget kring att en elevs spr?kliga erfarenhet vid skolstart kan avg?ra hur avancerat eleven kommer att l?sa i h?gre ?rskurser.

The aim of the study was to install a biogas system consisting of three tubular polyethylene biogas digesters at a rural household in Malawi and to evaluate the constructed biogas system with regards to relevant system parameters. The purpose was to evaluate if the technology is a possible solution to reduce deforestation and support Malawi in climate change mitigation and adaptation. The study was carried out in the southern part of Malawi in cooperation with the University of Malawi. Locally available materials were used to construct and install the system. Three different feed materials, cow, goat and a mix of cow and goat manure, were used in order to determine which one was best suited to utilise as a digester substrate. After the installation, measurements of temperature, pH, biogas production, biogas composition and system functionality were made. The results of the study show that a biogas system with tubular polyethylene biogas digesters can be successfully installed at a rural household and that the most suitable feed material is a mix of cow and goat manure.

The thick shelled river mussel (Unio crassus) has a fragmented distribution in southern Sweden. It is a threatened and protected species. In both the Swedish red list and the IUCN Red List of Threatened Species Unio crassus is classified as Endangered (EN). Causes for this classification are for instance differentiated bottom substrate and deterioration in water quality. In this study, habitat preferences of Unio crassus were investigated to assist in future restoration work.

The structure and performance of grocery distribution in Sweden has changed profoundly since the second world war. Increasing access and usage of the private car, in combination with an accommodating town planning has enhanced the exploitation of scale economies within distribution firms. There is, however, some ambiguity concerning the overall efficiency of the distribution system when the costs associated with travelling and purchasing performed by households are treated as an integrated part of the total distribution cost function. The purpose of this master thesis is to develop the foundation of a spatial optimisation model, which defines the most efficient distribution system. The underlying idea is that the optimal localisation and size of grocery stores is a function of economies of scale within the firms weighed against distributions costs within the households, such as transportation costs.

Future emission legislation puts great emphasis on increasing the efficiency of the engine, thereby reducing fuel consumption. The tribological contact between cylinder liner and piston ring is where an great amount of energy is lost due to friction, and by reducing these losses an reduction in fuel consumption can be achieved.The aim of this thesis was to evaluate the tested piston ring coatings against a plasma sprayed cylinder liner and rank these combinations of materials for friction and wear resistance. The coatings that were tested was Cr + Al2O3, (Al,Cr)N, two types of CrN and WC / C.The experimental tests were performed with a so-called pin-plate, where used oil with addition of an acidic mixture of sulfuric and nitric acid to mimic the acidic condensate formed when exhausts recirculate, were added with a continuous flow. The results were then analyzed by weighing, studies by optical microscopy and scanning electron microscopy (SEM) and profile measurements.The results from each material combination were that the plasma coated cylinder liner wears too aggressively in order to yield a ranking of the piston ring coatings based on the parameters of friction and wear resistance. It is therefore proposed that an alternative coating on the cylinder liner should be developed, lacking the large abrasive wear on piston rings and that can withstand the corrosive environment resulting in engines equipped with EGR.

Microproduction, also called distributed generation, is something that has become more and more popular in the electric grid. Microproduction can however lead to unacceptable performance if several units are installed in the same low voltage network. It is therefore good to know a limit where the performance of the low voltage network becomes unacceptable based on given parameters. This limit is usually called hosting capacity.In this report the hosting capacity with respect to voltage and current have been studied in three low voltage networks which are located in Falu Elnäts concession area. This has been done by simulations in a GIS-program where critical times of the grid have been simulated.

Bakgrund: Multiresistenta bakterier (MRB) ?r bakterier som har skapat resistens mot antibiotika. Antibiotikaresistens har blivit ett globalt problem som leder till att vissa infektioner blir allt sv?rare att behandla. Problemet har ocks? blivit alltmer omtalat, och det arbetas aktivt f?r att f?rhindra fortskridande utveckling.

Essay in political science, C-level by Mikael GranathAutumn semester 2012, Tutor: Freddy Kjellström- Ideological convergence in Swedish party politics?- An analysis of ideologies of the Swedish Social Democratic party and the Swedish Moderateparty and their healthcare and health service policies between the years of 2002 and 2010.The main purpose of this study is to examine the truthfulness in the common perception thatthe Swedish moderate party and the Swedish social democratic party are increasingly sharingthe same political views - particularly between the years of 2002 and 2010. The main researchquestion is:?Did the Swedish Moderate party and the Swedish Social Democratic partyideologically position themselves closer in the year of 2002 than they did in 2010within the health care policy area?The research design chosen for this study can be labelled as a comparative case study wherethe two political parties party programs and election manifestos that were current in the yearof 2002 and 2010 are studied. This is done to give a better view of ideological change.

In this study we try to focus on the costs for wear parts on different type of soil tillage machines and at Väderstad Rapid drilling machine. We have studied some of the leading types of cultivators and disk harrows. Among the cultivators we have investigated Väderstad Cultus, Dalbo Dinkomax, Horsch Tiger and Terrano. At disk harrow we have looked at Amazone Catros and Väderstad Carrier. We have made more detailed study on costs for wear parts, working depth, driving speed and diesel consumption.