Healthy calves are the foundation in order to run a profitable diary production. Being healthy as calf results in a better start in life and good growth is expected to follow. Within dairy production it becomes more common to rear calves in groups and feed them by an automatic milk feeder. The milk feeder enables for the calves in greater extent to ingest milk or milk replacer several times per day and they are also able to perform natural behaviors in greater extent. Group rearing of calves puts higher demands on the animal keepers to localize individual calves in the group pen, showing signs of illness.

MARIA HEDIN, CIVILINGENJÖRSPROGRAMMET, Ergonomisk design och produktion MARIA MARKLUND, TEKNOLOGIE MAGISTEREXAMEN, Industriell design Examensarbetet har utförts inom programmen Industriell design samt Ergonomisk design och produktion vid Luleå tekniska universitet under en period av 20 veckor i oktober 2006 till februari 2007. Uppgiften var att utveckla koncept för ett lyfthjälpmedel till den MultiTask-cell (MTC) som nyligen installerats i Volvo Aeros produktion i Trollhättan. Cellen består av fem MultiTask-maskiner vilket innebär att varje maskin kan utföra alla nödvändiga operationer (borrning, svarvning, fräsning etc.). I maskinerna bearbetas detaljer till flygmotorer med hjälp av verktyg som till största delen hanteras av industrirobotar. När den bearbetande delen på verktygen ska bytas sker däremot hanteringen manuellt av operatörerna. I MTC:n finns ett område speciellt avsett för byte av den bearbetande delen på verktyg, även kallat ställning av verktyg.

This thesis has created an image of the exchange of information among teachers in the Swedish upper secondary school. The study indicates that the exchange of information seems to be limited at all levels and the exchange that takes place outside the own teaching team occurs mainly through teachers personal networks. The study also shows barriers that may exist and the opportunities that an increased exchange may generate. From the picture that the empirical material provides and the theory that is presented a discussion is made around how IT can best support the organizational learning in schools. A concrete proposal is that at national level an IT platform should be created, which primarily focuses on materials that are created by its users and has an open architecture with a single login..

The horses? natural behaviour is easier to satisfy in a loose-housing system than housed in a traditional box. Law?s and science suggest that we should house horses in loose-housing, which improve the horse possibility to perform natural behaviours, to interact socially with other horses and to have more possibility to movement. It?s more timesaving in a working population aspect and a economic gain in materials. We noticed that it?s different opinions about what people in the horse society thinks about having youngsters housed in a loose-housing system.

This essay seeks to analyze the consequences of modern information and communication technology for collective action within the framework of social movements. With references to the protests in Seattle 1999, the essay argues that the emergence of distributed collective action is closely related to the use of technology, for example cell phones and Internet. This distributed collective action can be characterized by its decentralized and self-organizing features, forming a global pattern emerging from local interactions. Whereas contemporary theories of collective action can be ´stretched´ to fit these aspects, they lack analytical tools to describe and analyze such systems. Further, their rejection of classical crowd theory is problematic, since it contains valuable insights.

Can degree of degenerative brain disease be predicted with the help of measurements of cognitive deterioration?Alzheimer?s disease progresses through nerve cell break down in the brain and the simultaneous deterioration of the individual?s cognitive function. This disease is common among elderly persons. This thesis examines if the level of deterioration of cognitive function is associated with different biochemical and clinical markers for degenerative brain diseases. In addition, this thesis examines if the level of decline in cognitive functions vary between groups with different levels of degenerative brain disease.

Bakgrund: Yoga förklaras som ett tillstånd som förenar kroppen, själen och anden och fokuserar på harmoni och helhet i människan. Ashtanga är en kraftfull yogaform där förbestämda positioner knyts samman med hjälp av en återkommande rörelsesekvens, vinyasan. Yoga har visat ha effekt på psykiska förmågor såsom ökad koncentrationsförmåga, samt fysiska förmågor som ökad syreupptagningsförmåga och ledrörlighet. Syfte: Syftet med den här studien var att undersöka hur ashtangayoga fyra dagar i veckan under åtta veckor påverkade koncentrationsförmåga, syreupptagningsförmåga och rörlighet hos två friska individer. Metod: Två kvinnor, 25 och 29 år gamla tränade under åtta veckor ashtangayoga fyra dagar i veckan.

This is a graduation project in Innovation Management, which seeks to enlighten new theories within the major subject ? the multi?faceted innovation process.The reader is hereby invited to an insight in the more complex perspectives of these types of theories than what has previously been explained in simplified ways.We have conducted research on a company within the cleantech market; Cellkraft AB. The company develops and produces fuel cells amongst other products, which have emerged during their research and development in the fuel cell technology. Cellkraft works in a high?tech frontline market where innovation is key.

Studiens målsättning var att utvärdera kvalitén hos hingstsperma selekterad med hjälp av Single Layer Centrifugation (SLC), med huvudsyftet att studera den mitokondriella membranpotentialen (??m) och förekomsten av reaktiva syreföreningar (ROS) hos hingstspermier före och efter SLC. Ett insemineringsförsök med SLC selekterad och rutinspädd sperma genomfördes även på ett litet antal ston, men inga slutsatser kunde dras av resultaten. Humanstudier har visat att spermier med låg ??m mer frekvent har återfunnits hos män med fertilitetsproblem. Mätning av ??m har gjorts genom att tillsätta den lipofila JC-1, vilket i både studier på både humana- och ekvina spermier har visat sig vara en känslig metod för att särskilja spermier med låg respektive hög ??m.

Today, there are more than 12 000-14 000 farms worldwide using an automatic milking system (AMS). Studies have shown that transition to AMS affects the udder health of cows adversely, recognized primarily as elevated somatic cell counts. There are several reasons for this, for example the greater variation in milking frequency seen in AMS. On one hand, short milking intervals may lead to bad teat condition of the cows due to the stress the milking procedure exposes the teats to. Too long milking intervals, on the other hand, seem to predispose for milk leakage, which is, in turn, a risk factor for the development of mastitis.

The purpose of this study is to describe melanotic tumours and the pathogenesis of these tumours. The focus of this study is on differences between benign and malignant tumours as well as the prognosis one may expect when diagnosing this disease. The mechanisms responsible for the occurrences of the tumours are not yet fully understood. It is believed that factors such as chronic trauma, infections, medications and hormones affect the cell mechanisms in some way. Determinants of the malignancy of the tumour are not completely known.

In order to optimize calf welfare and health it is important to know the behavior of cattle in free ranging conditions. When the cow is about to give birth to a calf she will leave the heard about 12 hours before. It is then rather obvious that isolating the cow about calving time in a single pen is imitating the cows? natural behavior. To save space and minimize building cost it?s common that the farmers build calving pens for four of five cows especially at larger farms.

The purpose of this study is to describe melanotic tumours and the pathogenesis of these tumours. The focus of this study is on differences between benign and malignant tumours as well as the prognosis one may expect when diagnosing this disease. The mechanisms responsible for the occurrences of the tumours are not yet fully understood. It is believed that factors such as chronic trauma, infections, medications and hormones affect the cell mechanisms in some way. Determinants of the malignancy of the tumour are not completely known.

The project has been implemented in collaboration with Carl-Johan Lundberg on Deltagruppen Ltd in Jönköping. Problem introduction comes from Carl-Johan's own experience from the hotel sector. The problem that all hotels has is that they sell two products, i e. simple - and double rooms. Persons that travel in companies do not desire always to share bed.Focus in the work is to develop a product that holds together two simple beds and forms double bed, concurrent that it goes that converters to two simple bed without needing to disassemble the product and be done invisible.

A numerical simulation case involving space plasma and the evolution of instabilities that generates very fast electrons, i.e. approximately at half of the speed of light, is used as a test bed for scientific visualisation techniques. A visualisation system was developed to provide interactive real-time animation and visualisation of the simulation results. The work focuses on two themes and the integration of them. The first theme is the storage and management of the large data sets produced.