In inhalation anesthesia life-support systems are used to provide gases to the patient and to monitor important parameters. These systems are used in dynamic and stressful situations where the information-load on the operators often is significant. This thesis presents a design concept of an anesthetic system. The design goal has been to keep the information-load on the operator low with the objective to minimize confusion and error.A number of contextual inquiries were made in the operating room during surgery at four hospitals in Sweden. The goal was to understand the actual use-situations when anesthetic systems are employed.

This thesis raises the problem with acid mine drainage around the closed mine Finngruvan.The purpose of the investigation was to compare metal content in surface water in the areaand its catchments between year 2010 and 2003, also to make calculation of specific runoffand metal load, furthermore determine the recipients in the area. Surface water samplingwhere preformed at the same place as 2003 and also at a few other places of interest. Adigital elevation file were used in GIS to calculate the area of the watersheds in the region,observations in the field where also made. The collected data were used to make comparisons,calculations and conclusions. The result showed that the surface water 2010 had somewhatlower metal concentrations.

Children with Reading and Writing Difficulties and Their Language and Cognitive AbilitiesA Comparison with Children with a Cochlear ImplantAbstractThe aim of this study was to examine the cognitive abilities that are important for reading in children with reading disabilities, children with a cochlear implantation and typically developed children. 64 children aged 10-12 years participated in the study. To answer the question at issue we used the following tests: Block Design from WISC III, PPVT III, TOWRE, SL 40 and a few chosen tests out of the SIPS battery. On tests of the lexical access children with reading disabilities performed at the same level as hearing children, while the children with a cochlear implant performed significantly lower. Test of the phonological and complex working memory showed that children with reading disabilities performed significantly higher than children with a cochlear implant, but at the same time lower than typically developed children on the test of phonological working memory.

GE Healthcare operates in Uppsala (Sweden) and develops systems, equipments and medium to purify medical substances. Discussions with the local authority concerning planed far-reaching changes and upgrades of the biological process techniques for sewage management, aroused the question about revising the terms of permit for the activity. Therefore it seemed necessary to evaluate a newly installed biological process technique, which is the background of this thesis. The evaluated biological treatment process was built in 2003 and consists of a biological reactor filled with moving bed carriers with a high surface area for biological growth. At the time of the project the biological wastewater treatment plant consisted of a flow equalization facility and two following parallel biological processes; a biological reactor with moving bed carriers and a tower trickling filter.The aim of this thesis was to survey the function of the biological reactor with respect to the reduction of organic matter.

This essay is a study of the government bills for a new grading scale in the Swedish schools. There have been many complaints about the current grading scale and the main problem seems to be that teachers are interpreting the criteria for certificates differently. There are two major challenges for Swedish teachers, one is how to interpret the criteria for certificates, the other one is the equality problem , students can not be sure of that two different teachers would give the same grades. The main point of the essay is to try to find out whether the new grading scale will solve this problem. To my help I have made an analysis of the bills of the Swedish government for the new grading scale.

At the Women?s House in Örebro, a children?s project has started where the work method ?Oasen? [Oasis] model has been developed by two children?s educationists. The aim of this study is, with the ?Oasen? model as a starting point, to deepen the knowledge of (1) how to meet children?s central needs while staying at a Women?s House and (2) what the ?Oasen? model may contribute to the children. The theoretical framework consists of a cognitive approach to the progress of children experiencing domestic violence and a presentation of conceptions concerning children?s needs.

Purpose: This thesis aims to study how students in upper secondary school evaluate sources in their everyday school work and how the role of the school library and librarian officiate in this context.Methodology: A web questionnaire was conducted and 155 students from different schools, with or without school library and school librarian, participated. We coded and aggregated the questionnaires according to the strategies that are used when evaluating sources, identified by Francke, Sundin and Limberg. Cognitive authority, a theory by Patrick Wilson, was also a part of our analysis. Conclusions: The study shows that students use different strategies, separately or combined, as a way to evaluate sources. The teacher is regarded as a cognitive authority and is the main influence concerning source evaluation. It also shows that the role of school libraries and school librarians, in this context, seem to be non-existent.

The object of this explorative theoretical study is to compare similarities in three perspectives for evaluation of credibility. The perspectives are the historical method source-criticism, cognitive authority and domain analysis. These perspectives, regarded as intellectual tools for critical thinking in a process of information seeking, by asking questions about credibility related to the social and theoretical context of the intellectual background, can give support in articulating which documents that gives a specific and essential answer to a question. In this sense credibility is seen as a qualitative aspect of relevance. Patrick Wilson argues that we can attain some critical independence towards cognitive authorities and the literature by investigating the social and theoretical topography of a field.

Summary Today energy prices are rising. As a result biomass fuel is getting more and more interesting. Wood chips is very popular, but also straw from grain production is on the table. Lunds Energi AB project a combined power and heating plant in Örtofta out of Lund. Wood chips is meant to be the main energy source, complemented by straw. In this thesis the transportation of straw for fuel is studied.

A new type of device for measuring thev m& ?rate of fuel sprays from a diesel fuel injector has been developed and the various steps in the development are described. The device works by deflecting all of the sprays from the injector at the same time by using a bell shaped deflector. A load cell consisting of a machined steel part with strain gauges mounted on it measures the resulting force. The shape of the curvature in the deflector bell shape has been evaluated by photographing the flow in a 2D?version of the curve shape.

Based on laboratory studies with lysimeters, the concentrations of dissolved reactive phosphorus(DRP) and particulate phosphorus, which is the main part of other P (OVRP), has been studied inpercolating water. The experiment was conducted through irrigation of small soil columnscontaining clay topsoil from an experimental field in Västergötland. Three rain simulations wereconsecutively performed. DRP concentrations in the percolating water ranged between 0.2 - 0.3mg·Lclearly related to the phosphorus concentration in the soil, measured in a soil extract ofammonium lactate (P-AL). Concentrations of OVRP were relatively low and ranged between0.12 and 0.16 mg·Lwas not proven and the experiment may reflect how a relatively slow percolation of water mayrelease DRP.

För att utvärdera en metod för tillämpad kognitiv uppgiftsanalys, ACTA (Applied Cognitive Task Analysis), har anställda på Saab AB genomfört ACTA genom att intervjua flygförare. ACTA består av tre intervjutekniker och skapades av Klein Associates Inc. ACTA är en metod som kan användas i tillämpade sammanhang för att ta fram aspekter av experters beslutsfattande. Denna rapport redovisar en utvärdering av CDT (Cognitive Demands Table), vilket är tabeller över kognitiva krav sammanställda av datamängden insamlad i intervjuerna. Utvärderingens syfte var att avgöra huruvida praktiker kan sammanställa en CDT med högt innehåll av kognitiva poster.

The central goal of this study was to compare statements of the minister of migration in power in 1994 with those of the minister of migration in 2006. The statements reflect two peaks of refugee immigration in connection to the war in former Yugoslavia and the present war in Iraq. The study analyses the statements in a critical discourse analysis framework. More specifically the aim was to find out if there were any discursive differences in these statements and how they might manifest themselves in society. The material was composed of 12 texts, 6 for each period originating from Swedish newspapers and from the ministers' public speeches.

The district heating load is seasonally dependent, with a low load during periods of high ambient temperature. Thermal energy storage (TES) has the potential to shift heating loads from winter to summer, thus reducing cost and environmental impact of District Heat production. In this study, a concept of high temperature borehole thermal energy storage (HT-BTES) together with a pellet heating plant for temperature boost, is presented and evaluated by its technical limitations, its ability to supply heat, its function within the district heating system, as well as its environmental impact and economic viability in Gothenburg, Sweden, a city with access to high quantities of waste heat.The concept has proven potentially environmentally friendly and potentially profitable if its design is balanced to achieve a good enough supply temperature from the HT-BTES. The size of the heat storage, the distance between boreholes and low borehole thermal resistance are key parameters to achieve high temperature. Profitability increases if a location with lower temperature demand, as well as risk of future shortage of supply, can be met.

In the debate on laying hen welfare, and specifically housing conditions, the main focushas been on physiological and behavioural measures. What is lacking is knowledge of howthe hen experiences the situation ? her state of mind.This study is an attempt to gain insight into the private mental states of former batteryhens. It uses a cognitive bias method based on spatial judgement, i.e. judgement of aambiguous stimulus placed spatially in between a reinforced and an unreinforced stimulus.This method has previously shown differences in judgement by animals in enriched versuspoor housing.