The aim of this master thesis is to evaluate the performance of the content-based image retrieval system ImBrowse from a semantic point of view. Evaluation of retrieval performance is a problem in content-based image retrieval (CBIR). There are many different methods for measuring the performance of content-based image retrieval systems, but no common way for performing the evaluation. The main focus is on image retrieval regarding the extraction of the visual features in the image, from three semantic levels. The thesis tries to elucidate the semantic gap, which is the problem when the systems extraction of the visual features from the image and the user?s interpretation of that same information do not correspond.

Nurses have an important role caring with the suicidal patient as they often are the first to encounter these individuals. In order to develop their skills, nurses need to understand the complexity of the problem around the thoughts of wanting to die. The purpose of the study was to compile and elucidate research that describes how nurses can provide care to suicidal patients. The method used was a literature review. The results were divided into seven themes that can guide the nurse in the work: to be there, give time and listen, to recognize and assess risk factors, working in a team, to be attentive to own attitudes, to give hope, to be able to process their feelings, increased knowledge of the causes of suicide.

The object of this study is to examine the effective functionality of an OPAC-system while a few participants interacted with the catalogue. I?ve used Carl Martin Allwood?s (1998) four designed usability factors to be able to estimate the effective functionality of the online catalogue. Theoretic basis is Human Computer Interaction together with Allwood?s four defined usability factors.

Undersökningens syfte är att studera läraridealgenom dödsrunor för att se vilka ideal som den avlidne framställdes i samt sehur dessa skiljer sig åt i ett genusperspektiv. Minnesrunorna finns publiceradei Sveriges allmänna folkskollärarföreningstidningsorgan Svensk läraretidningoch undersökningsperioden är åren 1928- 1930. Undersökningen visade på att bådeden manlige och den kvinnliga läraren framställdes i stort sett lika även omdet skiljer sig åt procentuellt sett. Läraridealet för denna tid var enpliktrogen och nitiskt lärare/lärarinna som på ett dugligt, intresserat ochsjälvuppoffrande sätt utförde sitt kall. Därtill tillkom ideal såsom glad,avhållen och godhjärtad.

This scientific essay starts in a story where you get to follow me in my work by three situations with creative problem behavior at the special school where I work. The story culminates in a dilemma where I ask myself questions about how I look at my actions and my thoughts about the student. I break down and put these thoughts into three questions: What is my student's perspective and how will it affect my actions? How can I explain my actions and attitude of the student from ethical perspective? How do my practical knowledge look like in the narrative situations and why do I act like I do?My approach is to get answers to the questions by the reflection of the text itself, the reflection group and supervisors, as well as through literature that I find relevant to the issues. The process is like a pendulum motion between text, reflection and new understanding.I look at my situations based on psychological theories about the treatment of persons within the autism spectrum of problems creative behavior.

In this bachelor thesis a complete prototype of an industrial vibration measurement platform has been developed. By measuring a number of variables such as acceleration, temperature and speed conclusions can be drawn on machinery health. The aim is to evaluate hardware and software solutions for a possible future product. Based on a requirement specification a proper hardware design has be developed. The hardware consists of a four-layer PCB with an ARM Cortex-M3 microcontroller and about 250 other components. The PCB was designed, assembled, tested and finally housed in a box.

The combat mission is an extreme situation with high demands of the soldier. Killing might very well be necessary. Before a mission a soldier can experience stress due to these factors. The purpose of this paper is to find methods to handle stress due to an upcoming combat mission and to the prospect of having to kill. The main questions of this essay: -How can certain parts of the physiological psychology improve a soldiers ability to perform a mission? ? Is the Swedish soldier mentally prepared to kill? The theory for this essay has been described using litteratur by experts within the field, and the results thereafter discussed.

This thesis was carried out at Atlas Copco Tools and Assembly Systems. The purpose hasbeen to develop a design tool to be used for development of new electric motors for AtlasCopcos electric nutrunners. The focus of the thesis has been to increase productivity bydecreasing the power losses in an electric tool. The productivity is defined as themaximum number of tightenings a nutrunner can perform without becoming too hot.Before starting the development of this design tool an existing Matlab script, whichcalculates the losses in a slotless electric motor, has been studied and modified torepresent the real losses in a better way. The modification has been made by performingpractical studies of different losses and then adjusting existing parameters in the Matlabscript.Because design changes in one part of a mechatronic system can lead to a decrease inperformance of another part the choice of parameters that can be changed has been madeso that other parts of the system is affected as little as possible.A study of the existing tools efficiency during an entire tightening has been made toincrease the understanding of when and where the different losses appear and to comparethe modified Matlab script with the measured values.The design tool was formed so that it executes the Matlab script, that calculates thelosses, for a number of different design options and stores the alternative which producesthe least losses.

The aim of this thesis is to compare the effectivity of using a natural language and a controlled vocabulary when performing subject searches in the bibliographic database LISA Library and Information Science Abstracts. 20 topics were created and for each topic two searches were made, one by using a query formulated with natural language directed to the abstract field and the other one by using a query formulated with descriptors from the thesaurus in LISA directed to the descriptor field. The average relative recall amounted to 64,8% for the AB-queries and 54% for the DE-queries. Failure analysis showed that the majority of the relevant documents not retrieved by AB-queries could have been retrieved with other query terms, such as synonyms. In a natural language there are many different ways of expressing a topic, and this tends to have a negative effect on retrieval effectivity.

The purpose of this thesis is to evaluate and compare the retrieval effectiveness of two search engines on the Internet: Svensk Medicin and Google Scholar. Svensk Medicin is a medicine-specific search engine and Google Scholar specialises in indexing scholarly material. A set of 20 questions in four categories were used to conduct the searches with the search engines. Genuine medical information needs were selected from a question collection provided by the television program Fråga doktorn. The relevance of the first 10 retrieved documents was judged by using a binary scale and the measure used was precision.

Syftet med denna studie är att undersöka hur några lärare på gymnasiesärskolans nationella program arbetar med bedömning av elevernas kunskapsutveckling samt hur dessa lärare arbetar för att eleverna ska kunna synliggöra sina kunskaper. Studien baseras på sju halvstrukturerade intervjuer med lärare som undervisar i svenska på gymnasiesärskolan.  Resultatet visar att lärarna använder sig av många olika metoder för att skaffa underlag för  kunskapsbedömning. Samtal, observationer och dokumentation är några exempel. Lärarna arbetar tätt ihop med eleverna och ger konkret, tät återkoppling för att synliggöra kunskapsutvecklingen både för eleven och sig själva. Eleverna behöver mycket stöttning och repetition för att utveckla kunskaper och självständighet i arbetet.

The aim of this Master's thesis is to investigate the importance of subject expertise for academic librarians in Skåne. Virtually all librarians in Sweden have studied other subjects besides library and information science (LIS) before becoming librarians, and in this thesis we ask what happens to this expertise. How many librarians can be said to have a good background in the subjects they are working with? Do academic librarians use their subject knowledge on the job? Does it make a difference what subject one has studied when it comes to job opportunities? What do librarians themselves think of the importance of subject expertise? We are also interested in finding out how subject expertise fits in with the growing professionalization of librarianship.A quantitative questionnaire was sent to 195 academic librarians at four different institutes of higher education in Skåne. A total of 107 librarians answered questions about their LIS education, subject background and current job as well questions on how important they perceived a subject background to be for themselves and for academic librarians in general.

Cancer is one of the most common diseases and it affects not only adults but also many adolecents and children every year. Those who are affected of disease face many challenges that will affect their lives. The aim of this literature review was to illuminate adolecents experience of cancer and how it affects them in their daily living. The result showed that the adolecents experience many physical and mental side-effects from disease and treatment. They expressed the need of information, support and understanding from their families, friends, school and care givers.

The aim of this study is to illuminate factors in nurses´ work, which can cause a state of exhaustion called burn out. The results indicate that work related mental illness is a lengthy process that gives rise to both physical and psychical problems. These problems might lead to a state of burn out. However, several authors prefer to use expressions like exhaust syndrome or exhaust depression as they are criticising the concept of burn out. The study is a literature analysis of 11 scientific articles that have been scrutinized using the criterions presented by Polit et al (2001).

Sweden is on the turn of a dramatic demographic change. The number of elderly will in the coming decade increase considerably. This also means that the need of dwellings adapted for accessibility increases. By adapting dwellings and housing areas to an increased level of accessibility, more people are given the opportunity to stay for a longer time in their habitual surroundings and the housing becomes secure for the user both in a physical and mental point of view. One of the least accessible housing areas in Halmstad is Klackerup.