This bachelor thesis has the purpose to visualize and document the air movementsprovided by different ventilation principles in an operating theatre. The visualizationwill be made as simple as possible in a physical model. The model and thedocumentation should be able to use in educational purposes.The study is based on the two most common systems for airflow, currently used inoperating theatres. The first principle is displacement ventilation in which the air issupplied at low velocity along the floor. The second principle is vertical parallel laminarairflow in which the air is compressed like a piston from ceiling to the floor.A review of literature resulted in the choice of size, design, and scale factor for themodel, as well as choices of ventilation principles and airflows.

A growing interest for the climate and the environment has led to an increased interest forenvironmentally friendly and renewable energy sources, such as biogas. Planning new biogasplants requires a decision basis including facts about approximate amounts of biogas possibleto produce at the plant. The purpose of this thesis is to develop a model that calculates theapproximate biogas and digestate production from a planned or existing biogas plant.Developing the model required a literature review and studies of calculations concerningbiogas and digestate production performed by WSP Sweden AB. As a complement to themodel development, facts about substrates for biogas production were compiled through aliterature review. In addition the methane potential from selected materials was determined bybatch experiments.

This report describes a study aimed at uncovering flaws and finding potential improvements from when the modelling tool EAAT is used in conjunction with the modelling language CySeMoL. The study was performed by developing a framework and applying it on CySeMoL and EAAT in real life context networks.The framework was developed in order to increase the number of flaws uncovered as well as gather potential improvements to both EAAT and CySeMoL. The basis of the framework is a modified version of the Quality in use model from ISO/IEC 25010:2011 standard. Upon the characteristics and sub characteristics of this modified model different values for measuring usability where attached. The purpose of these values is to measure usability from the perspectives of both creating and interpreting models.

The major part of the existing research on psychological effects on participating in war or residing in a war zone shows negative effects on the person?s mental health. However not all research, from an international perspective, shows the same results. Since we haven?t found any research regarding Swedish conditions and there has been a recent implementation of a decision from the Supreme Commander regarding commanded international service for all staff within the Swedish armed forces, the question has now become more relevant.

The Swedish public inquiries and most of the political science advocate reforms in the spirit of participatory democracy to strengthen the democracy. Although it is striking how limited and narrow the scientific documentation is in analysing the effects of participatory democratic reforms. Still, many of the local governments in Sweden are reshaping their organisations according to the participatory democracy model. Is it a trend and a symbolic action or a veritable action of good-will of the politicians?The paper argues that the idea of participatory democracy has become popular and widely spread.

In 2010, SAS received the "On time performance service" award by Flightstats. This award was an affirmation of long-term work, both in projects and as an ongoing process, which the company sought to systematically improve punctuality on its flights. The extent to which SAS followed the values and the underlying theories of the cornerstone model for total quality management was the main issue in this essay. Whether there are conditions for the company to get even further by working in other ways was also investigated. In addition, the importance of punctuality in relation to customer satisfaction was discussed.

Purpose: To investigate if Altman´s Z´-score model, which calculates financial distress, can be applied on companies established in Sweden and if the financial crisis in 2008 made previously healthy companies go bankrupt.Methodology: Quantitative studies with a positivistic foundation. Empirical data will be collected in order to examine if there is generalizability among the studied objects. Conclusions will be made by comparing the empirical data with the theoretical foundation. Financial distress in firms will be measured.Theoretical perspectives: Altman´s Z´-score model, designed to predict financial distress in private firms.Empirical foundation: A selection of 93 private firms that have gone bankrupt in the years 2008, 2009 or 2010. The firms selected all have a turnover that exceeds 20 million SEK.

The aim of this bachelor thesis is to find out how a number ofhospital librarians look at child and youth patients' reading and itspossible role in a mental and physical healing process. We alsoinvestigate the knowledge, strategies and thoughts the librarianshave on bibliotherapy.Qualitative interviews have been used and seven librarians, at twodifferent hospital libraries with children's and youth activities, wereinterviewed during November and December 2011. The analysis isbased on one theory; we use Sten Furhammar?s model whichincludes four different categories of reading.We can see, according to the librarians? answers, that the mostcommon function of the patients? reading can be explained throughtwo of Furhammar?s categories. Our respondents believe that thepatients mostly read to relax from heavy thoughts and situationswhich can be connected to the category impersonal experiencereading.

This bachelor thesis has the purpose to visualize and document the air movementsprovided by different ventilation principles in an operating theatre. The visualizationwill be made as simple as possible in a physical model. The model and thedocumentation should be able to use in educational purposes.The study is based on the two most common systems for airflow, currently used inoperating theatres. The first principle is displacement ventilation in which the air issupplied at low velocity along the floor. The second principle is vertical parallel laminarairflow in which the air is compressed like a piston from ceiling to the floor.A review of literature resulted in the choice of size, design, and scale factor for themodel, as well as choices of ventilation principles and airflows.

This bachelor thesis has the purpose to visualize and document the air movementsprovided by different ventilation principles in an operating theatre. The visualizationwill be made as simple as possible in a physical model. The model and thedocumentation should be able to use in educational purposes.The study is based on the two most common systems for airflow, currently used inoperating theatres. The first principle is displacement ventilation in which the air issupplied at low velocity along the floor. The second principle is vertical parallel laminarairflow in which the air is compressed like a piston from ceiling to the floor.A review of literature resulted in the choice of size, design, and scale factor for themodel, as well as choices of ventilation principles and airflows.

Kontorslandskap är en vanligt förekommande kontorsdesign och fördelar och nackdelar med att arbeta i sådan miljö är oklara. Syften med denna studie var att a) undersöka hur individer upplever att arbeta i kontorslandskap och vad det kan ha för konsekvenser för hälsa och arbetsvillkor, och b) undersöka deras grad av känslighet i förhållande till kontorslandskap, hälsa och arbetsvillkor. Studenter vid Beckmans designhögskola deltog i studien genom att fylla i en enkät. Resultaten visade att upplevelse av kontorslandskap var relaterat till anspänning av arbete och arbetstillfredsställelse men inte till sensory-processing sensitivitet vilket är delvis i linje med tidigare forskning. Att uppleva kontorslandskap som positivt kan kopplas till högre arbetstillfredsställelse och lägre anspänning av arbetet.

SammanfattningSyfte och frågeställningarSyftet med studien är att analysera hur elever i årskurs nio upplever sin egen mentala hälsa och ohälsa med utgångspunkt i ett specifikt lektionstillfälle i mental hälsa. Studien ger en bild av vilka faktorer som påverkar elevers mentala hälsa i positiv och negativ riktning. I förlängningen bidrar studien sålunda med att ge blivande och färdigutbildade lärare kunskap om vad elever idag upplever påverkar deras mentala hälsa. Vilka faktorer påverkar elevers mentala hälsa positivt?Vilka faktorer påverkar elevers mentala hälsa negativt? MetodStudien vilar dels på en kvalitativ forskningsmetod bestående av fyra djupintervjuer med semistrukturerad form och en kvantitativ analysform bestående av 36 elevers svar på vad som får dem att må bra och vad som får dem att må dåligt. Metoden är således triangulerad för att innehållsligt skapa både en bredd och ett djup.

The aim of this Master?s thesis is to investigate and increase the understanding of Swedish Public Library Websites and to determinate which activity they mediate. To analyse the Public Library Websites Andersson and Skot-Hansen?s model of roles for the Public Library has been used. This model in¬cludes four roles for the library: the library as a cultural centre, a knowledge centre, as an information centre and as a social centre.

This paper analyses how Swedish fine-art oil paintings sold at auctions has performed as a monetary investment during the period autumn 1985 until spring 2006. An average price technique as well as a hedonic regression technique, applied to a sample of 19 213 auction sales, is used to construct price indices. The indices show somewhat different results, which is explained by the inability of the average price model to adjust for relative differences in quality between periods. The hedonic regression model on the other hand captures this effect, why the hedonic index is applied in a financial return model. By adjusting for transaction cost, the financial return of an average investment in paintings is calculated.

Folkhälsovetenskapligt program.