A vehicle that carries a person sitting in a wheelchair has been rebuilt. The original vehicle was provided with a petrol engine, hydrostatic drive and a mechanical steering rod, making it noisy and hard to maneuver. The purpose with this project was to convert the vehicle to make it more environmental and easier to drive.A new design has been proposed where an electrical drive has replaced the noisy combustion engine and an electrical motor with joystick control has replaced the manual steering.The project was divided into two parts. One mechanical part where the construction of the drive and steering were to be decided. The other part involved programming the microprocessor and implementation of all the necessary electrical for the control system of the vehicle.

In order to evaluate different afforestation methods for exposed heath lands a field experiment was established in Mosfell on southern Iceland in 1989. The trial comprised six different site preparation methods (control, herbicide application, tree shelters, patch scarification, TTS trenching and mounding). In total 960 container seedlings (1+0) and 960 Nisula roll transplants (2+1) of lodgepole pine were planted. Various planting positions (furrow, hinge, no site preparation (control) and on top of mounds) were tested within the site preparation treatments. This study involves renewed measurements and analyses of the trial.After 19 years the overall survival was 51,7 %.

Public health focuses on interventions related to physical activity during leisure and at work under conditions where health care is offered during working hours. Increased physical activity offers many positive effects on health in general and reduces the risk for most injuries and illnesses. Female cleaners represent a profession that is largely composed of women at high risk of overload injury and rarely participate in wellness initiatives offered at workplace. The purpose of this study was to investigate the effects of 20 minutes of daily physical exercise for 10 weeks of intervention for healthy female cleaners. A total of 40 female cleaners in a larger organization participated in the study and were divided in into an intervention group and a control group.

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.

The aim of this study was to enlighten social workers experiences of social networks direct influence in Swedish social services, and in which ways those influences are manifested. Some of the issues that are being explored in this study are: The separation of the private sphere and professional duties; boundaries and dual relationships that occurs inside social networks; the use of social networks as a control-instrument in authority exercise towards clients; and social networks arising impact on social work. The empirical material was collected with nine qualitative interviews with social workers stationed at different social service departments in a Swedish municipality. Also one qualitative e-survey was sent out to, and answered by four social workers with a managerial position in the same municipality.The results reveal that several informants have experienced different problematic situations involving clients within the social networks. This study shows that the informants are very restrictive with what information (text and pictures) they publish on their facebook-profiles, because of their position of authority and the awareness of the possibility of always being watched.

The purpose of this study has been to examine how the image of the gambler is described by studying a report published by Folkhälsoinstituet [FHI] and a number of chosen articles from the Swedish Evening Press. Discourse theory has been used both as theory, together with social constructionism, and as a research method. The main conclusions of the study are that three different discourses can be identified: the normal gambler, the professional gambler and the problem gambler. The image of the problem gambler is described as a deviant and problematic minority characterized by loss of control, irrational thoughts and dissociative behaviour. The construction of the problem gambler fills three possible purposes for the state: As a solvable problem to handle criticism against negative consequences of gambling, as an argument to avoid competition on the market and as an individual characterized by loss of control in order to legitimize and make the construction of the normal gambler possible..

Staphylococcus aureus is the most clinically important Staphylococcus species and is associated with high mortality in patients with positive blood cultures. S. aureus bacteria may cause a variety of disease manifestations ranging from minor skin infections to life-threatening conditions such as pneumonia, meningitis, osteomyelitis, endocarditis, toxic shock syndrome (TSS) and sepsis. This microorganism belonging to the gram positive cocci may also be part of the normal flora. In Sweden, penicillinase-stable penicillins are the primary alternatives to treat S.

Many grocery stores have products marked whit there private brands. The information about these brands is poor. We wanted to find out what the stores own brands stand for and what the manager of purchase thinks it stands for. We choose to concentrate on meat and cured meat and limit our study to ICA, Axfood and Coop because they are the three main actors in the Swedish branch of grocery. The supplier has traditionally manufactured products and made there own brands. These products have been distributed and sold to the consumer thru stores.

In modern dairy production the milking frequency is increased in some herds due to introducing of automatic milking systems or the farmers decision to milk high producing dairy cows more than two times a day. With more frequent milkings the milk yield increases while the content of fat and protein decreases. However, how the composition of protein is influenced is not fully evaluated. The purpose of this study was therefore to see if a higher milking frequency had any impact on the milk production and especially on the protein composition. This study was conducted as a half udder experiment.

The purpose with the study is to see how middle managers in communal elderly care looks at the implementation of the salutogenic way of working in their operations. And how it affects the middle managers working situation. We studied which scope of actions middle managers has in the salutogenic way of working. We had previous knowledge that the salutogenic working way is an ongoing work of development in several communes, and therefore we chose to study in a profound way how this work of development affects the middle managers working situation. To reach a deeper knowledge about how the salutogenic way of working affects the middle managers working situation we conducted a qualitative study with been seven semi-structured interviews with middle managers in different geographical communes.

Simulation means running a model of a system with suitable input and observing the corresponding output. Real-time environment simulation is a special kind of simulation used to simulate a control system's environment in real-time. This is done to test the control system before it is used in its real environment. In this project, computer simulation of a certain kind of environments, called track-based systems, is studied and a general model for track-based systems is developed. In this model, track layouts are represented by graphs, which is a flexible and extensible representation and a method for visualizing these layouts is presented.

Modern air battles are very dynamic and fast, and put extreme pressure on pilots. In some unpredictable situations, like new discovered threats or mission plan deviation because of enemy aircraft, the pilots might need to replan their predefined flight route. This is very difficult, if not impossible, to do since numerous factors affect it. A system that can help the pilots to do such a thing is needed. Previous work in this field has involved methods from artificial intelligence like A*-search.

This study was conducted on a property with a thinning machine team. The purpose was to investigate in which machine, the harvester or the forwarder, that caused most damage to the trees in six different stands. Different factors, related to the damage frequency in the stands, were checked out. For example: basal area per hectare, thinning strength, tree diameter and the rate of production. The harvester drivers were also interviewed about how, when and why stem damages occur and how to minimize them. The study stated that 4.3 percent of the trees were damaged. Out of these 88 percent was caused by the harvester and the rest, 12 percent, by the forwarder..

The histiocytic diseases are generally rare in dogs and not much is known about the disease. The disease complex that includes both a reactive form and a tumour form, is however common in certain breeds, among them the Bernese Mountain Dog. As the literature is very limited on the subject of histiocytic diseases, my aim with this thesis has been to gather current knowledge of these diseases. I have also attempted to estimate the frequency of the diseases among the Swedish Bernese Mountain Dogs and investigate if they appear to be more common among certain families..

AbstractComing to new job is not that easy, sometimes the feeling of insecurity appears. Working for recruitment agencies includes constant changes of colleagues and places of work and at the same time one has two different managers. Who does the individual turn to when problems occur and who do the employed see as his/her manager? Why do people search for work in recruitment agencies? How does it feel not having a fixed place of work or colleagues and how do the aspects of this affect the employed psychosocial work environment? This is a few questions asked when we tried to find answers on the employed feelings about his/hers psychosocial work environment in a recruitment agency. The purpose of this study was to find a deeper understanding on employees working in a recruitment agency experiences their psychosocial work environment on the basis of social support, demands and control.