This literature study aims to examine the existence of cancer stem cells in breast cancer. The cancer stem cell theory states that there is a hierarchical organization within a tumour, in which a small subpopulation of the cells can initiate new tumours and maintain tumour growth whilst the bulk of the tumour cannot. These tumour initiating cells have shown to possess many characteristics similar to those of adult stem cells, which is why they are often referred to as cancer stem cells. Both cell types have the capacity of asymmetric division and have shown to possess mechanisms of resistance to both apoptosis and cancer drugs. The cancer stem cell theory elucidates many biological aspects such as the heterogeneity of tumours and the relapse of many cancers after what appeared to be successful treatments.

The purpose of this study was to explore nurses' experiences of obstructed airways in the prehospital work.A qualitative interview study with a descriptive and explorative design was used. The sample consisted of nine registered nurses whereof three were women and six were men, with or without further education and varying length of experience in the ambulance service.Prehospital personnel builds up a vast plan of action based on the emergency information provided by SOS. Simple methods for managing obstructed airways were stated often enough. Problems with obstructed airways are considered so unusual that it never becomes a routine. Several factors affect the identification and managing of obstructed airways, both external factors and the different patient categories are considered important.

Genom att ta hjälp av retorikvetenskapliga teorier och metoder presenteras en retorisk utveckling av framingteorin. Diskurser om kärnkraft på Dagens Nyheters (DN) och Aftonbladets opinionssidor efter olyckan i Fukushima undersöks med utgångspunkt i Gabrielsens toposanalys. Sätt att inrama på och inramningars funktioner urskiljs och kategoriseras som selektiva, dikotomiska, lokaliserande, transformativa, alluderande, tonsättande (dysfemismgrundande eller eufemismgrundande) och annekterande inramningar.DN:s ledarsidor är överlag mer kärnkraftsvänligt inställda än Aftonbladets och i flera fall inramar de diametralt olika. DN undviker i princip helt dysfemismgrundande infallsvinklar på ledarsidorna, till skillnad från Aftonbladet.Såväl kärnkraftskritiker som förespråkare kommer till tals på debattsidorna i bägge tidningarna. Debattartiklarna tenderar i större utsträckning än redaktionella kommentarer att ha eufemismgrundande inramningar.En outtalad argumentativ utgångspunkt som inte används av någon av parterna i debatten om energilösningar och energibehov, är det faktum att samhället är energiberoende i så stor utsträckning som det är.

The aim of this study was to map the intellectual base at the Swedish School of Library and Information Science (SSLIS) at the University Collage of Borås, and to compare this intellectual base to the intellectual base of the research area Library and Information Science. This was done by analysing the citations in publications published, between the year of 2001 to the first quarter of 2006, by researchers at the institution, using the technique of author cocitation analysis. Cluster analysis and multidimensional scaling, statistical techniques that are traditional i the author cocitation analysis, formed an objective map of the intellectual base at the SSLIS. This map was then compared with three prior studies, that used the same technique to map the intellectual base of the research area. The result shows that the map of the intellectual base at the SSLIS consists of the specialities: user studies, library studies, culture/cultural policy, information retrieval, bibliometrics and information in organisations.

Syftet med denna uppsats är att jämföra manliga och kvinnliga programledares intervjuteknik i morgonprogrammet Gomorron Sverige. Under de 150 år som intervjun har utvecklats är den idag ett av journalistikens viktigaste redskap. Uppsatsen är baserad på teorier om hur man uppnår en bra intervjuteknik genom olika knep, samt teorier om genus inom journalistiken där den manliga och kvinnliga dikotomin diskuteras. Vi har valt att använda oss av metoden kvalitativ intervjuanalys, där vi har tagit fram frågor från teorierna och som vi sedan ställt till vårt material.Våra resultat visar att det finns många likheter i mäns och kvinnors intervjuteknik. Resultaten visar även att kvinnliga programledare har mer makt över intervjun genom sina frågor och hur de agerar.

The purpose of this study is to investigate the forest managers view of the edu-cation at the School for Forest management at SLU and the first years of em-ployment. Surveys were sent to batches 05/08, 06/09 and 07/10 a total of 136 question-naires were sent out. 80 people answered the survey, this gives a response rate of 59 percent The former students rated according to a 9-grade scale how satisfied they were with the different courses they had attended during their years as students at the school. The courses in mathematics and statistics got the highest marks with an average of 7.3, while the entry-level course in law only got an average of 4.6. A major part of the former students had in the questionnaire enquired a leader-ship course and a business course with focus on negotiation techniques during their education. There is a wide variety of employment opportunities for the graduated students. Timber buyers and forest managers or planners are just a few positions that for-mer students now possess. The study shows that there is a big difference in the first introduction to a new work place depending on where the student got hired.

Gruppolarisering innebär att bl.a. social jämförelse leder till att isolerade grupper med likasinnade genererar mer extrema åsikter. Gruppolarisering på internet kan vara ett oroväckande fenomen för den deliberativa demokratin. Istället för att människor med konkurrerande ståndpunkter utbyter idéer och tankar med varandra samlas de i isolerade diskussionsforum på internet där social jämförelse i värsta fall kan utmynna i hattal och terrorism. Med netnografisk metod studeras här politiska diskussioner online i två olika typer av forum, ett politiskt och ett icke politiskt.

This thesis approaches the problem of estimating the arm angles of an industrial robot with flexibilities in joints and links. Due to cost-cutting efforts in the industrial robots industry, weaker components and more cost-effective structures have been introduced which in turn has led to problems with flexibilities, nonlinearities and friction. In order to handle these challenging dynamic problems and achieve high accuracy this study introduces state observers to estimate the tool position.The observers use measurements of the motor angles and an accelerometer and the different evaluated observers are based on an Extended Kalman Filter and a deterministic variant. They have been evaluated in experiments on an industrial robot with two degrees of freedom. The experimental verification shows that the state estimates can be highly accurate for medium frequency motions, ranging from 3-30Hz.

A speech-based material that early can assess a child's hearing is needed to provide an indication of a hearing impaired child's language development. Being able to identify and discriminate between different sounds is a requirement for interpreting speech. Hearing assessments that examine speech perception can therefore, unlike, for example, pure tone audiometry, examine a hearing impaired child's perceptual language skills and provide a basis for intervention.The purpose of this work is to evaluate a new auditory material on 3-year-old children. The auditory material is based on the Ling-6-sounds and the main question was which of the sounds in the test were adequate for test of discrimination. Furthermore, it was investigated how the test works with children aged 3:0?3:11 years and how age and gender affect the result.Twenty-four children aged 3:0?3:11 years were tested using a computer based test.

The aim of this Masters thesis is to study opinions about the Swedish hospital libraries and their activities for the patients, in a selection of Swedish library journal articles. The theoretical starting point is grounded in Laclau and Mouffes discourse theory. The empirical material consists of 43 articles from three library journals; Biblioteksbladet, Blänkaren and DIK-forum, published between 1990 and 2004. These are analysed through a reading scheme in four levels. In the empirical material two themes appear; the culture theme and the patient information theme.

My essay explores how people talk about a woman´s supernatural ability in relation to normality and abnormality. In order to find this out I´ve made interviews with people inclose relations to Hildur Lawergren. Hildur lived all her life in Fole on Gotland where she was often interviewed in local papers and on the radio about her predictions on the coming weather. She used melted candles to make her predictions. The candles were melted down on Christmas eve.

Keywords: ID-method, internet, security, digitzing, bank Background: The digitizing of our society continues to grow and more parts of our lives is spent on the internet. The banks are one of the institutions that is at the forefront of this development since they established themselves on a early basis. The banks meeting points have since this establishment moved from the regular bank office out on the internet. A problem that has occurred during this transfer is the possibility to positive ID a customer in a virtual world. It is essential to offer the customer methods to identify themselves that are both safe and easy to use.

Peat litter has been used in animal houses for a long time. Because of its good ability to absorb liquid and nutrients from the manure it can create a dry surface for animals and a valuable manure product. Through changes in agricultural practises the use of peat litter has diminished and is to a great extent replaced by straw, sawdust and cutter shavings although Sweden is rich in peat-findings. The aim of this work was to summarize the presented knowledge about the used of peat litter, techniques, advantages and disadvantages and to compare with other commonly used litter materials. Articles on peat litter have been searched for in magazines, databases and books at SLU library. Visits to peat industries, interviews with peat producers and with peat researchers contributed to the material. Peat is not a uniformly material.

Pharmaceuticals that are found in marine ecosystems are a threatening environmental concern, which is known to harm both animal and plant life. One of the reasons for this problem is that the waste water treatment techniques are not optimized to clear waste water from its pharmaceuticals contain. In this master thesis four Swedish treatment wetlands were studied, and their ability to reduce numerous pharmaceuticals in waste water. The four treatment wetlands that were studied were those in Oxelösund, Trosa, Nynäshamn and Eskilstuna. Two ecotoxicological tests and chemical analysis were used.

This report is the result of a project in the course Independent Projekt in Molecular Biotechnology at Uppsala University during the spring of 2014. The foremost purpose of the course is to give students the opportunity to carry through exstensive work in a project environment. This project was formed based on a comission from the biotechnology company SweTree Technologies, and the goal has been to compose a summary of the different techniques and methods that exist in the field of mass propagation of trees through the method of somatic embryogenesis.The project group has obtained information about the area mainly throgh reading patents, trying to find key components and bottlenecks in other companies? somatic embryogenesis technologies. This paper is divided into different sections, containing the patents of the automation of different steps in the process.