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13603 Uppsatser om Difference-in- differences-metoden - Sida 55 av 907
Skattning av prognostiska faktorer för gradering av smärtans komplexitet hos patienter i behov av multimodal smärtrehabilitering inom två vårdnivåer.
AbstractPURPOSE: The aim of this study was to describe and compare possible differences regarding selected prognostic factors for disability between patients with non-specific chronic pain who were about to start a multidisciplinary treatment program (MMR), either within primary care (MMR1) or hospital care (MMR2).METHODS: The study had a descriptive and comparative cross sectional design. Eighty-nine patients were recruited consecutively when they were about to start their team treatment (50 in MMR1,39 in MMR2). The measurements were; Evaluation of self-reported self-efficacy for eight daily activities (STIVA-8), The Pain Belief Screening Instrument (PBSI) and Hospital Anxiety and Depression Scale (HADS).RESULTS: The study found some significant differences between the answers from patients in MMR1 and those from patients in MMR2. For instance, patients in MMR2 estimated lower self-efficacy according to STIVA-8 than patients in MMR1. Also, there were fewer low risk patients and more high risk patients in MMR2 than in MMR1 regarding pain intensity according to PBSI.
Utvärdering av konsekvenserna för nätanslutning av vindkraftparker i Sverige vid införandet av nätkoden Requirements for Generators
Grid codes are becoming more demanding on power generating units due to the factthat the complexity of the power grid is increasing. The penetration of wind powerhas grown over the last years and it is clear that wind farms need to be addressedwith the same type of grid codes as conventional generation units. There is howeveran undeniable difference between the technology in conventional synchronousgeneration units, and the asynchronous generation units in wind farms.This thesis has reviewed the current grid code in Sweden and compared it to the newcode proposed by ENTSO-E, ?the Requirements for Generators?, in the aspect ofwind farms with an installed power of 30 MW or more. The comparison has beencomplemented by an analysis of how wind farms of two different technologies(Doubly fed induction generators and full power converters) can meet therequirements and technical proposals have been given on how to be able to meetcompliance with the new grid codes.The Requirements for Generators contains many non-exhaustive and optionalrequirements, because of this it has been difficult to, at this stage, exactly point outthe technical impact on the grid connection of future wind farms in Sweden.
What factors correlates with the use of game meat, wild fish, berries and mushroom in Swedish households : urban vs. rural areas
This study was made to see too what extent Swedes uses consumptive resources such as berries and mushrooms, game meat and meat from fish in their household on a yearly basis. I have also looked into the difference between rural and urban areas in Sweden. Further aim was to determine what factors that correlates with the participation in berry and mushroom picking and the use of game and fish meat within the household. The study was conducted in form of a mail survey that was sent to randomly chosen persons in every municipality in the six northern most counties in Sweden and in the county of Stockholm. In addition a sample was sent to randomly chosen persons on a national level.The results showed there is a difference in use between rural and urban areas in Sweden in all 4 investigated consumptive resources.
Ekonomisk utvärdering av betonggjutformar
This report will try to evaluate the use of rented concrete casting moulds, which are used to build walls and system of joists. The evaluation is only examining the economical aspects.The cost of using concrete casting moulds is a big part of the total production expenses. Therefore it is important that the calculated price not exceeds the final costs of the casting moulds. The calculated price is the price used in the process of making an offer.The evaluation consists of a comparison of the calculated price and the final costs for three building projects. It also evaluates the exploitation of the concrete casting moulds for each project.The report is made by Sven Gynne and Anders Alexandersson at School of Engineering, Jonkoping University, in cooperation with PEAB Jonkoping.
Krig och fred -080808 : Freds-, krigsjournalistik och propaganda i mediernas rapportering om Georgienkriget: en komparativ studie av Sveriges, Rysslands och USA:s press
Abstract Title: Krig och fred - 080808. Freds-, krigsjournalistik och propaganda i mediernas rapportering om Georgienkriget: en komparativ studie av Sveriges, Rysslands och USA:s press. (War and peace ? 080808. Peace Journalism, War Journalism and Propaganda in the Media´s Reporting on the Georgia War: a Comparative Study of the Swedish, Russian and American Press.) Authors: Daniel Lövgren & Tatiana Makarova Tutor: Anna Roosvall Course: Bachelor Thesis: Media and Communication, PR Purpose: The purpose of this essay is to compare how the press in Sweden, Russia and the USA reported on the war in Georgia 2008.
Ståndort och växtval på takterrasser
In the country of Jordan, egg production is very important economically, but several bacte-ria are involved in food borne diseases transmitted from eggs or other poultry products. The most important are Salmonella spp., Campylobacter jejuni and Escherichia coli. In Jordan two different housing systems are used for hens in large scale egg production; con-ventional cages and litter floor systems. Eggs from four different farms were analysed and compared to see if a difference could be found regarding the presence of pathogenic bacte-ria on the egg surfaces between these two systems. Total number of aerobic bacteria was analysed, the presence of Salmonella spp., C.
Socialtjänstens arbete : Med kvinnor som blivit utsatta för våld
The aim of the current study was to highlight the social service work with domestic violence against women. In this study, we examined whether there was a difference in the way the social service works and if their effort differ in terms of domestic violence. Moreover, this study investigated how social workers work to prevent future violence against victims also what method they use to find out the causes behind men?s violence against women.A total of four administrative officers were interviewed from two different municipalities. All four officers were actively working with questions concerning domestic violence against women.
Sociala medier som strategiskt verktyg för professionella bloggare
Outdoor recreation habits in metropolis and rural areasThis study aims to examine the perception of nature and outdoor recreation habits from an urban-rural prospective. The urbanization process continues in Sweden and the populations of the cities are growing continuously. Trends to build more compact and ?climate smart? reigns and with this a risk that green areas and areas where outdoor recreation can be practiced are situated further and further away from the urban population. Analyzing the responses from a survey made by the research program Friluftsliv i förändring 2007 we have examined if and which differences exists between urban and rural areas regarding their perception of nature, outdoor recreation habits and factors influencing the practice of outdoor recreation.
Interaktivt Säljstöd-Flash presentation av Stöt Puls Metoden
Denna rapport är en beskrivning av ett examensarbete utfört vid SPM Instrument AB i Strängnäs. SPM Instrument utvecklar och tillverkar produkter för konditionsmätning av maskiner. Målet var att skapa en cd-presentation i redigeringsprogrammet Macromedia Flash 5.0, som på ett enkelt sätt med rörliga bilder förklarar en konditionsmätningsmetod som kallas för Stöt Puls Metoden.Uppgiften löstes genom att först inhämta information om Stöt Puls Metoden, sedan utformades Flash-filmen och slutligen testades och utvecklades filmen tills dess att jag och SPM Instrument var nöjda.
Cultural Meetings in Child Health Centers : An Interview Study about Child Health Nurses experience of Intercultural Communication.
Increasing immigration to Sweden has transformed a culturally homogeneous society into a more heterogeneous one. As a consequence intercultural communication and interaction have been increasing. Child health care agencies have encountered these increases. The aim of this study was to examine what the health care professionals experienced and communicated in these intercultural environments. Eight interviews with child health care nurses were carried through at four child health care centers in the south of Sweden.
Gymnasieungdomars hälsa : En jämförande studie av unga migranters och inrikesfödda ungdomars hälsa
Aim: The aim was to investigate and describe, how students on high school level in Kronoberg county self rated their health with relation to irritation, nervousness/anxiety insomnia and gender. An additional aim was to investigate if there are differences between students born in Sweden by Swedish parents, students born in Sweden by foreign-born parents and foreign-born students. Methods: A quantitative method was used to analyse data gathered from students (n=1936) on high school level in 2006. All statistical analyses were made with help of SPSS V-12. Finding: The findings showed that most of the students self rated their health as ?good?, however migrant students self rated their health as ?not so good? and they had more problems with insomnia. The overall findings showed gender differences. Particularly, foreign-born girls self rated their health as ?not so good? and reported more problems with insomnia. There was no divergence between the groups regarding irritation, nervousness/anxiety. Conclusion: School nurses and health workers must have deep knowledge about differences in gender, self- rated health and insomnia when they work with public health.
Lärande med Teknik : Användning (och Icke-användning) av IT i Skolan
For a long period of time there have been discussions about the need to modernize, to keep up with the changes in our society. The schools as a result have to keep up and adapt in order for the education to be up-to-date. This includes the technological developments. Many steps have been taken and mighty sums have been invested in order to keep up the pace ? but are there any consequences from these kinds of investments? In this report I?m going to take a closer look on a recent addition to this phenomenon that were installed by means of a top-down approach and study the teachers and how they have adapted and view the change in their environment ? namely the newly installed interactive writing-boards.The questions I will study include how the teachers express their view about the installation of the interactive writing-boards.
Bibliotekarien och professionen: En komparativ studie av DIK-forum och Biblioteksbladet 1990-2000.
This masters thesis concerns the professional knowledge of the librarian. It is a comparative study where two major ma-gazines in library press, Biblioteksbladet and DIK-forum, is compared between the years 1990-2000, in relation to the theories of professionalization and the associations to the union. The study focus on showing the differences and similarities between the two magazines according to how they interact from the subjects education, wages and status. The study is conducted from two questions: - Which are the central differences and similarities in the description of the librarian profession in the two magazines, from the perspectives of wage, status and education? - In what way do the two magazines reflect the theories of professionalization? To give a wider perspective of the librarian profession, there is also a historical chapter with an explanation to the making of the librarian profession..
Biologisk behandling av oljeförorenad jord : Abiotiska faktorers inverkan och effekter av olika uppläggningssätt på nedbrytningshastigheten.
The purpose of this report was to investigate how the abiotic factors (temperature, pH, nutrients, oxygen levels and water content) would affect the decomposition of oil-contaminated soil and how a variance in structured soil would affect the decomposition-rate. A minor field-study was made and soil where structured in five different ways (one was a default pile and was used as a reference). The study took place over 137 days and three samples were taken (start, middle, end) and analyzed for aromatic and aliphatic compounds. The result of this study shows that there is a significant difference between all methods for the aliphatic compounds and no significant difference for the aromatic compounds. The abiotic factors that affect decomposition vary from organism to organism, depending on what type of environment it will function the best.
Hur enkel- & dubbelportsturbin i kombination med två olika avgassamlare påverkar gasväxlingsprestanda på en Scania V8
The exhaust arrangement on a Scania V8 consists of one manifold at each bank connected to a twin entry turbine (8-2-2). A study in GT-Power has shown improved performance and reduced cylinder to cylinder variations using two manifolds at each bank in combination with a single entry turbine (8-4-1). This thesis work analyses the difference in performance shown in simulation and verify it by engine test.The initial work was focused on simulation in GT-Power. Investigating how exhaust manifold volume and pulses effects the turbine efficiency and the mean effective pressure during the gas exchange. To verify GT-Power simulations four engine tests with different exhaust arrangement have been made.The results from GT-Power simulation indicate that a larger exhaust volume improve the turbine efficiency.