Denna rapport handlar om optisk koherenstomografi, Optical Coherence Tomography (OCT), en relativt ny teknik som blivit allt mer attraktiv på sjukhusens ögonkliniker. En OCT-apparat används bland annat för diagnosticering av ögonsjukdomar lokaliserade i gula fläcken och runt optiska disken. I maj 2007 köpte Ögonkliniken på Blekingesjukhuset in en 3D OCT-1000 av märket Topcon. Hos denna OCT-apparat finns en mätfunktion, Caliper, som mäter näthinnetjocklek. Studien i denna rapport syftade till att ta reda på vad Caliper mäter, hur den mäter och om den går att lita på. En OCT-undersökning utfördes på tio testpersoner.

AbstractThis essay is an investigation where I try to gain an increased knowledge of the three assistants? (in the mentally disability profession) opinion about their education and their first years in their profession. I have also tried to answer the questions whether the course mentally disability/functional gives the students a good start in their profession, if there are any flaws or if something is missing in the course or if they can think of any improvements to make the course better.This investigation is performed as a qualitative interview study where three women were interviewed about their education and their first years as assistants? (in the mentally disability profession). All the interviewed women have been working in the care activity for two or three years since they graduated.

This thesis has been conducted at Saab Bofors Dynamics AB. The purpose was to investigate if a non-linear missile model could be stabilized when the optimal control signal is computed considering constraints on the control input. This is particularly interesting because the missile is controlled with rudders that have physical bounds. This strategy is called Model Predictive Control. Simulations are conducted to compare this strategy with others; firstly simulations with step responses and secondly simulations when the missile is supposed to hit a moving target.

The aim of this thesis was to develop an objective and automatic method for identifying capillaries in microscope images of the skin. Furthermore, statistical data about the identified capillaries and the capillary distribution should be computed and stored in a database. The method was implemented using the platform independent programming language Java. An analysis of microscope improvement using various polarization filter setups and wavelength filtershas also been performed, as well as a pilot study of the effect of applying a local anaesthetic cream on the skin. The method is developed and aimed at research on various pathological skin conditions affecting the capillary distribution.

When SKL (Swedish National Laboratory of Forensic Science) gets images to analyse, the task often is to identify a person or an object. In that work it?s important to find features. Unfortunately images from camera surveillances often contain a lot of noise, so details can be hard to discern.A simple method to improve an image from a sequence is to compute the mean of some of the images. However, the part of interest in the image has to be in the same position in all images.

AbstractThe purpose of this essay was to examine children?s comprehension of the internal organs of the human body and to see how this understanding varies between ages. Thirteen children in the ages between three to five have been asked questions, through qualitative interviews, about their thoughts regarding the human body.The understanding varies depending on the children?s age. A five year old have a better knowledge than a three year old.

The main reason for the study was to find out how much naturscience is used in the daily situation in the preschool/school environment with the younger kids. I have studied the teacher`s educations background, if this had any role in the teaching of naturscience. To get my answers I interviewed ten teachers with different teaching background.The result showed that science was present both in the preschool and school for the early years. Everything from teamwork to outdoor play and small experiments. To play out in the woods is most important part teaching in naturscience.My study showed that a teacher`s educations background had no part in the teaching of everyday life in the nature.Keyword: experiment, primary, school, science..

The main reason for the study was to find out how much naturscience is used in the daily situation in the preschool/school environment with the younger kids. I have studied the teacher`s educations background, if this had any role in the teaching of naturscience. To get my answers I interviewed ten teachers with different teaching background.The result showed that science was present both in the preschool and school for the early years. Everything from teamwork to outdoor play and small experiments. To play out in the woods is most important part teaching in naturscience.My study showed that a teacher`s educations background had no part in the teaching of everyday life in the nature.Keyword: experiment, primary, school, science..

The Art Library uses the newspaper cuttings archive to provide her customers with newspaperarticles about art. This archive has the following problems; there is little space left inthe paternoster lifts, the articles can only be found on keyword and to maintain the archive,much labour is required.This research aims to find out how the Art Library can provide her customers with newspaperarticles which will cost as little as possible.Six possible solutions are given. Out of these the solution with "Artikel-sok" was recommended.According to this solution the Art Library should no longer maintain the archive, butuse "Artikel-sok", a database from Bibliotekstjänst which contains descriptions of articlesfrom many Swedish newspapers and magazines. These articles can be ordered from Bibliotekstjänst.The old newspaper cuttings archive will be used for articles from before 1979,because these are not being taken up in the "Artikel-sok"..

The purpose of this study is to investigate how the major swedish banks look upon and promote student profitability as well as long-term relationships within the student segment from a CRM point of view. The study incorporates a qualitative course of action with an abductive research approach which has been carried out by conducting personal and telephone interviews with representatives from three out of the four major swedish banks Nordea, Swedbank and Handelsbanken. Our research finds that the banks appear to regard their relationships with students as long-term investments, but that they simultaneously seem to lack distinctive, clear and procreative strategies for securing these relationships. Furthermore, the development of profitability within the student segment is considered an informal process that does not necessarily need to be computed through the use of quantitative estimates. Also, educational variables does not influence the banks as they segment their customer base and the student-centred offerings within the banking industry is to be deemed as being standardized rather than differentiated..

Folksonomier, system som låter användare klassificera innehåll, blir allt vanligare på webben. Typiskt sker denna klassificering genom att användare fritt beskriver innehållsobjekt med hjälp av nyckelord. Denna uppsats presenterar en underökning av hur nyckelord förhåller sig till varandra hierarkiskt, inom ett folksonomisystem. Undersökningen är baserad på ett webbgränssnitt, där besökare kunde förfina eller förkasta förslag på hierarkier av nyckelord. Dessa förslag genererades utifrån av ett verkligt folksonomisystem. Efter analys av 400 inkomna svar dras slutsatsen att flera aspekter av metodologin måste förfinas för att tydliga resultat ska kunna uppnås. Förslag på sådana förändringar presenteras slutligen..

The parent-student-teacher conference presumes school responsibility of the development of the student. Teacher, student and parents are supposed to talk freely and in confidence, the conference should lead to a forward looking and long term plan. The parent-student-teacher conference should presume equality amongst the parties. The intention of this paper is to illuminate how the conference can be a way to clarify the process of learning. I intend to do this by showing the practice of four teachers, by making conclusions from their experiences they have made in their practice.

AbstractThis work is about children?s motor activity. You can often hear in media about sedentary children, and that one of the factors which contributed to this is computers and things like that. The main goal with this work is to find out how preschool teachers take care of children?s joy of movement and how they work to promote children?s progress of motor activity.

The county hospital of Dalarna has for the last couple of years carried through a process of digitalization. The result is that within the county it exists image plate systems from two different manufacturers. In an attempt to create a tool for dose optimization and dose surveillance the county of Dalarna would like to investigate if the exposure index from Agfa and Fuji is suitable as a dose indicator. An investigation of the exposure index, S, from Fuji has already been done. This thesis has been continuing the investigation by evaluating the stability of the exposure index, lgM, from Agfa.

Focusing of what´s best for the child has been a keyword in social work for a long time. That seems obvious for many people, but sometimes it lacks in the care of the children and the child may be taken in to care. The purpose was to find circumstances of success that can contribute to a successful placement of the child according to social workers and foster families. In which way does the cooperation between social worker, foster family and the origin family affect the placement? The study is based upon a qualitative method in form of interviews intending to get the respondents own knowledge and experience of foster care.