Gravitational lenses are unlike ordinary optical lenses, a phenomenon corrupting our optical view of the cosmos. When we look out intospace we see celestial bodies lying with astronomical distance from Earth. There is no guarantee that what we see out there in space is actually there where we are observing it, and it may be that we see multiple images of the same star! Studies have shown that thenumber of distorted images of an n-mass (n > 1) plane lens can not exceed 5(n -1) for lighter lenses or 5n for more massive lens. This mathematical thesis covers gravitational lensing and their properties that distort light rays coming towards us from distant celestial bodies. In addition of gravitational lensing, its properties and the proof of the maximum number of distorted images, a bigger part of this work even cover two very interesting mathematical tools - the so-called Schwarz function and Bezout theorem..

The purpose of this thesis is to investigate the relationship between urban transformation and the occupation movement in Sweden, aiming to identify the movement's characteristics and comprehend its changes over time. By analyzing qualitative material collected from occupants active within a span from the 1980 to the present, we examine how the occupation movement has evolved. We investigate the motivations behind the movement, the lifestyle of occupants, and their potential gains to get a better understanding of the culture. We explore the prefigurative politics of the resistance where occupant activists create alternative lifestyles aligned with their desired future, bypassing the wait for broader societal changes. Finally we inquire the current possibilities of creating and defending meaningful urban spaces and social scenes..

Fusarium head blight is a large problem world wide which reduces the yields and the quality of small grains. Shrunken kernels with decreased thousand kernel weight as an effect and pro-duction of mycotoxins are some of the problems caused by infection of Fusarium spp. To avoid toxin contaminated bulks to enter the food and feed chain it is important to have tools for prediction and analysis of the fungi and toxins. Good prediction methods are also impor-tant in the breeding industry since early identification in trials of lines with high resistance or susceptibility simplify the work. To compare different techniques for these objectives this project was initiated.

This paper examines the potential benefits of using augmented reality as a tool for visualizing furniture in a buyer?s own environment before buying it. A simple prototype is developed and tested.  The steps for developing the prototype are described in great detail as well as the tools being used. The prototype is tested both on people working in the furniture business as well as people with experience in buying furniture online. In conclusion the results from the user tests are analyzed and the potential benefits are described.

Green manuring is a way of creating an organic fertilizer by growing a crop that is mowed down. Besides the fertilizing effect this method has been shown to have a positive influ-ence on soil organic matter as well as weed flora, and green manure is an important me-thod of weed control in organic farming in parts of Sweden. However, the release of nu-trients from the green manure varies and can therefore be difficult to control. Risks for losses of nutrients are also present. Although the area of organic farmland is increasing in Sweden, the use of green manure is decreasing.This report contains a literature study which compiles research on the functions of green manure in a cropping system and also how the crop can be used if harvested, for example to produce biogas.

Assignment Birino AB are aware of the fact that their work tasks can be improved. The author?s assignment is to identify one task and improve it with relevant tools.Purpose See if the authors can improve health and effectiveness by changing the work task.Method The authors have conducted qualitative interviews, a quantitative survey and an experiment to see how the change worked in practice. The data the authors have collected will then be presented with relevant theories to answer our research questions/issues.Conclusion The authors have done a work process that can be used as a tool for change and improvement of health and effectiveness. This process can be implemented in different companies and not just the company that the authors have chosen to work with. .

This report is a study made at Pallco AB. Pallco is a subcontractor that is specialized on steel and aluminium components.The aim of the report is to show an improvement proposal that leads to a reduction of the storage and improve the flow through the production of one item that is a part of a product that Pallco manufactures.With the increasing competition from other countries who can manufacture with lower costs must Swedish companies try to make theirs manufacturing as efficient as possible and remove all waste. By using the tools of Lean Production it is possible to reduce the costs and increase the efficiency.The method we used is value stream mapping. A map of the present condition has been made and then different improvement proposal were discussed. A map of a future condition has also been designed..

I have been inspired by the Do It Yourself movement. DIY builds on the creativity of the individual, one?s capacity for initiative and one?s desire to realise one?s ideas. I have been inspired by sheets of pattern paper used in the manufacture of clothing, and my line of furniture is based on two-dimensional patterns of furniture. The sections of the pieces of furniture are printed on and relate to a standard sheet of plywood.

The purpose of this study is to find out how buyers of forest-and farm land have valued the property's various parts. How buyers has valued the forest, field, pasture, house and the farm buildings on their property. A questionnaire with 22 questions was sent to 68 people how had bought a property in Kronoberg or Blekinge. They had bought the property in 2010 and first half of 2011, and the properties have been provided by LRF-konsult. To each question there were several alternatives and the buyers would choose the alternative that was most similar to his or her opinion. The study is based on 57 responses.

This is a qualitative case study of young womens? experiences of blogging about One Direction on the social media/microblogging platform Tumblr. The aim of this study was to find out what fan blogging is and why fans blog. We did this by creating an account on Tumblr where we invited young women between the ages of 16?29, who had active fan blogs dedicated to One Direction, to answer an open-ended questionnaire.

This is a qualitative case study of young womens? experiences of blogging about One Direction on the social media/microblogging platform Tumblr. The aim of this study was to find out what fan blogging is and why fans blog. We did this by creating an account on Tumblr where we invited young women between the ages of 16?29, who had active fan blogs dedicated to One Direction, to answer an open-ended questionnaire.

This is a qualitative case study of young womens? experiences of blogging about One Direction on the social media/microblogging platform Tumblr. The aim of this study was to find out what fan blogging is and why fans blog. We did this by creating an account on Tumblr where we invited young women between the ages of 16?29, who had active fan blogs dedicated to One Direction, to answer an open-ended questionnaire.

This is a qualitative case study of young womens? experiences of blogging about One Direction on the social media/microblogging platform Tumblr. The aim of this study was to find out what fan blogging is and why fans blog. We did this by creating an account on Tumblr where we invited young women between the ages of 16?29, who had active fan blogs dedicated to One Direction, to answer an open-ended questionnaire.

ABB Capacitors Ludvika started their LEAN-project in november 2010, but still has not the whole factory been introduced to the LEAN-tool called 5S. 5S is only implemented on the ?easiest? work-areas.By implementing 5S, at the workingstation called inburkningen, would make the workstation and the area around it much more structured, clean and systematized. The operators are a little bit skeptical to the work that includes continuous improvement today, because they can not see any progresses. If 5S were implememted the operators would be able to avoid searching for tools because with 5S, each tool will have a specified place at the workstation.5S would simplify the cooperation between the shifts, because 5S includes clear instructions for how the workstations will be cleaned after each shift.This report will include my recommendations, thoughts and opinions regarding however ABB Capacitors Ludvika should implement or not implement the LEAN-tool 5S.

AbstractIn this text the attitudes towards and using of blogs in teaching Swedish toteenagers will be explored. The results are based on a survey made amongst 17teachers and 58 students from all over Sweden. The end results show that theusage of blog still hasn?t found a permanent way into the classrooms, but has anappeal to and is being used by predominantly younger teachers both, male andfemale, with a positive response from students regardless of gender. Theconclusion is that using web tools like the blog is an easy first step for schools toconnect to the digital society of the 21stcentury and take advantage of the perksavailable in the digital classroom.Svensk titel:Blogg + Svenska =Sant? ? Bloggande i undervisningen i svenska.Engelsk titel:Blog + Swedish =True? ? Blogging in teaching Swedish.Ämnesord: Blog, Web 2.0, digitalt klassrum, svenska, undervisning,kompetensutveckling.