n this dissertation a comparison of two evolutionary methods for evolving ANNs for robot control is made. The methods compared are SANE with enforced sub-population and delta-coding, and marker-based encoding. In an attempt to speed up evolution, marker-based encoding is extended with delta-coding. The task selected for comparison is the hunter-prey task. This task requires the robot controller to posess some form of memory as the prey can move out of sensor range.

This is a master thesis from Uppsala University in collaboration with B Locket AB (more known as www.blocket.se). B Locket AB is a large ad-company from Sweden, located in Stockholm.Search engines on the market today are becoming more and more complex. When they were first introduced, they only had one function and that was to produce search results containing the string that the user had typed. Today, users want it to be able to spellcheck, produce more results and sort search results on specific fields as well. Preferably, all these features should not affect the performance as a whole.The reason to why these demands have come up is that users are getting more and more used to internet services as a whole and they want everything to be as easy as possible.The user ability has become a substantially more important area in the computer industry and this needs to be taken into account when it comes to B Locket AB and its search engine.

The aim with this study was to gain knowledge about how parents who are visual impaired experience and manage the meeting with the world around them. To have children and to be visual impaired creates a complex situation. There is not only the problem how to manage the parenting in technical terms. The disability is also filled with stigma because it diverges from the norms of society. There is not only demands from society about how the parent should behave, the parent also create demands of themselves.

Technical products are becoming more and more complex, this means that the drivers, mechanics and service personnel?s need for assistance such as the service literature is increasing. In this degree project the focus is on the technical manuals of Scania?s Workshop Manual. Today, the information in the Workshop Manual consists of collaboration between text and illustrations.

The Swedish Red Polled breed is threatened by extinction and there are only around 1100 animals left. The breed was popular in the early twentieth century, but since then the numbers have steadily decreased. The overall objective of this study was to find out whether there may be economic incentives for preserving the breed. The milk quality properties are of major importance in the production of dairy products. Therefore we would like to establish if the Swedish Red Polled breed carries favourable alleles at loci of relevance for milk quality, to potentially make the breed more interesting for milk production.

The aim of this thesis was to use qualitative approaches to show how teachers in primary school reason on their way to meet and communicate with children who have ADHD (Attention-Deficit/Hyperactivity Disorder). Research questions of the study were as follows: How does teachers in primary school reason about their way to communicate with children with ADHD? Do the teachers use some specific methods or means of communication with students who have ADHD? Do the teachers reason about their way how to handle conflicts with students who have ADHD? I collected my empirical material through a qualitative interview method. My theoretical starting points were interaction theory and the socio-cultural perspective. I have used these theories to analyze my material.

This thesis concentrates on the organization surrounding the school transports in Norrköping and its surrounding areas. It is a qualitative research based on interviews with four different groups that is included by this organization, local municipal officials, entrepreneurs, school personnel and youths depending on this service. I have used organization theory as a theoretical base. In my study it became clear to me that this is a complex and multifarious organization. The many different actors sometimes make it hard to survey all the different parts of the organization.

Students of all ages host a wide variety of scientifically inaccurate ideas and conceptions about everyday astronomical phenomena, such as the seasons, the moon phases, and gravity. The field of Astronomy Education Research has over the last decade experienced an accelerating growth, although the majority of studies have been conducted in the USA. In this work, the 9th grade students of a typical Swedish school were surveyed by means of a questionnaire in order to probe their conceptual understanding of several key concepts in astronomy. In the end, the number of respondents amassed to a total of 90. The results were analyzed with a constructivist approach in light of conceptual change theory and phenomenological primitives.

The aim with this study is to explore if and how linguistic learning takes places when four pairs ofstudents in grade one writes on the computer. Observations of eight students took place duringtwelve lessons to investigate what happened during their writing processes. This study isimportant because students? computer writing is a relatively new phenomenon in the Swedishprimary school.It is clear that the peer collaboration creates a complex interaction that becomes the platform, andalso the prerequisite, for successful language training. The method can clearly give students profitsin their linguistic development.

The purpose of our examination was to survey how one preschool works with so called language groups, if the mother tongue is important and if the informants can see any complex of problems in the inclusive/exclusive way of working with language groups in the preschool. The literature review provides for example the three most important areas of mother tongue, which are the emotional, the social and the intellectual (Ladberg, 2000). Further it describes the difference between the conceptions integration and inclusion, when today the concept inclusion is preferred (Tøssebro, 2004). We were inspired by qualitative interviews as our method and from a phenomenographic perspective described the informants? perceptions about the named phenomenon.

Abstract Background: More and more people receiving palliative care in the home, leading to increased responsibility for the next of kin. Being a caregiver and at the same time next of kin is a complex situation for everyone involved. Next of kin´s everyday life changes drastically when everything revolves around the one who is seriously ill.Aim: To describe next of kin´s experiences of being caregivers to a palliative sick person at home. Method: A literature review in which eleven qualitative scientific articles were analyzed and summarized. Results: The results revealed three themes; experience of support, experience of changes in life and experience of strategies.

This study deals with the complex phenomenon of occupational health. There is knowledge of how a good work environment should look like, but despite this, many employees experiences ill health in the workplace mainly in the form of neck and back pain. This study is a case study conducted in a high-risk workplace. The overall purpose was to describe and analyze the health situation of a specific company with neck and back problems. Mainly, eight interviews had been used as the data collection method, but additional observations had also been implemented.

The storm Gudrun January 8-9 2005 felled about 70 millions cubic metres forest in southern Sweden. The majority of the wind damaged forest was spruce (Picea abies). In order to decrease the risk of wind damages in the future other trees species are of interest for forestry in southern Sweden. The purpose of this master thesis was to study if larch were more wind tolerant than spruce. The method was to compare larch, Japanese larch (Larix kaempferi Lamb.), European larch (L.

The retail industry is complex and when it comes to the in-store environment conventional marketing tools seldom find their way. The impacts of in-store atmospherics on customers and the psychological impact the store environment has on their decision-making are rather remarkable. An in-store atmospheric that often is used in order to affect customers is music, in fact it is one of the in-store elements that has been investigated more carefully. Nevertheless, in spite several studies on music and its impact as an in-store atmospheric on customers, it is not yet obvious what applies. To bring some clarity on the subject this study is aspiring to explain what applies when it comes to playing music in grocery stores.

The focus of this thesis is on what is considered to be a suitable foster home. For the study to be carried out an application had to be made to get access to the foster home assessments in a medium-sized municipality in Sweden. With the support of attachment theory and theory of standards different categories have been picked out and analyzed in foster home assessements that have been approved. The conclusion to what is considered to be a suitable foster home is a complex issue, as there are many factors that are interacting. Social workers seem to focus on the importance of a family?s ability to provide some kind of stability and security for a child who is considered to be placed within their home.