Tail-biting in pigs is an animal welfare issue and in Sweden during 2002 the producers lost tree million Swedish crowns because of tail biting. This economic loss depends on the pigs which are discarded at slaughter because of tail biting. Tail biting can be separated into two stages, "pre-injury" and "injury". The aim of this study is to investigate if tail biting depends on environment or genetic background.A lot of research on the environments effects on the behaviour of pigs but not so much on the genetic effects has been performed. The frequency of tail biting in pig farms influence among others of environment enrichment, ventilation, gender and breed of the pig.

 Den här uppsatsen har skrivits i samband med ett examensarbete som jag gjorde på Shortfuse, ett företag under bildning i Gothia Science Park vid Högskolan i Skövde. Det som jag har gjort under examensarbetet var att ändra vissa befintliga spellägen och att designa helt nya spellägen till fightingspelet Colosseum. Målsättningen är att utveckla nya spellägen utan att lägga till eller ändra på befintlig spelmekanik.Resultatet av arbetet ledde till en lösning på hur målsättningen kan uppfyllas, nämligen genom att kombinera befintlig spelmekanik på nya sätt. Men jag kom fram till att det ändå inte går att designa något nytt utan att ändra på spelmekaniken åtminstone lite grann. Slutsatsen är att den positiva inverkan en idé skulle ha på spelet måste övervägas mot hur mycket det kostar i form av tid och pengar.Dessutom ledde arbetet till beskrivningar av tre olika metoder för att komma på nya idéer.

Birch is the dominant deciduous tree species in Sweden but only 16 % is found in pure birch stands. The majority of the birch (51 %) is to be found in conifer dominated stands. Swedish forest land comprises approximately of 23 % mixed stands and one problem is that for mixed stands there are few management recommendations. The underlying aim of this thesis was to study the management of mixed forest stands of spruce and birch to achieve good timber quality of birch. The study was based on a literature study and measurement in a field experiment launched in 1998 by the Swedish University of Agricultural Sciences (SLU).

The determination of the optical properties of biological tissue is an important issue in laser medicine. The optical properties define the tissue´s absorption and scattering behaviour, and can be expressed by quantities such as the albedo, the optical thickness and the anisotropy coefficient. During this project, a measurement system for the determination of the optical properties was built up. The system consists of a double integrating sphere set-up to perform the necessary reflection and transmission measurements, and a computer algorithm to calculate the optical properties from the measured data. This algorithm is called Inverse Adding Doubling method, and is based on a one-dimensional transport model.

Multi Protocol Label Switching (MPLS) är en routingteknik som blir allt vanligare i dagens nätverk. Vid implementation av MPLS i nätverk är det grundläggande att hårdvaran har tillräckligt hög prestanda för att hantera tekniken. Om så inte är fallet kan det leda till negativa konsekvenser såsom paketförluster eller i värsta fall att routern havererar. Syftet med arbetet var att ta reda på hur processorbelastningen på en router skiljer sig när MPLS var implementerat jämfört med traditionell IP-routing. Routingprotokollen BGP, OSPF och RIP användes tillsammans med de olika routingteknikerna för att se vilket av dessa som krävde minst processorkraft.För att ta reda på hur processorbelastningen påverkades skapades en experimentmiljö.

The work was carried out on Termisk Systemteknisk?s office in Linköping. The aim was to create a computer system with infrared camera technology for quality control and temperature monitoring of manufacturing processes in industry. The system should be configurable such that it can be used on several different issues, including those where the real-time analysis of camera images is required.The developed system is based on an existing framework, Panola, to deal with measurement results and images in a database. The framework is built for the system continually check for new data , and the task was to create a foundation upon which to build systems that use the framework, but fully or partially utilize direct calls .

The study is a qualitative survey with the purpose to through interviews with Employment Office social workers examine their perception of possibilities and obstacles in the employment market for immigrants. This purpose is specified through two specific problems; how are cultural and ethnic affiliations portrayed in relation to what is perceived as Swedish in the communication with Employment Office social workers and whether they reckon that the specifications in the employment market are pragmatically or normatively motivated. The materials are presented using a social constructivist perspective and in relation to previously conducted research and our chosen theory. The results are presented and analyzed in themes. The main conclusions drawn from the interviews are that it primarily is the individual prerequisites that are central, but that structural factors also affect the entry into the employment market.

Background: Anxiety with children before surgery is well known. From the 1950s there are various assessment instruments. Despite that most day surgery units offer preparation for children and parents, there are many children who exhibit a strong anxiety the day of surgery, which can lead to postoperative behavioral changes. Today the nurse estimates the anxiety of a child on personal experience and knowledge, forming the basis for estimation whether the child is in need of sedation or not. The purpose: of this study was to evaluate instruments that the nurse can use in measuring the degree of anxiety of children before fast clinical settings, such as day surgery.

This study presents results for observing forest changes in Sweden using multi-temporal L-band satellite data and is a part of the JAXA?s ALOS Kyoto and Carbon Initiative. An extensive dataset of images acquired by the Advanced Land Observing Satellite Phased Array type L-band Synthetic Aperture Radar (ALOS PALSAR) is investigated for clear-cut detection in boreal forests in northern Sweden (Lat. 64°14? N, Long.

Hanterbara båtar is a new company who builds alumina boats customized for people in wheelchairs. Due to the fact that the company only built two boats yet, the production documentation is not complete. The drawing that does exist is not in an exact standard which makes production planning harder.The purpose of this work has been to make the production of the boat easier and simplify further development and modification. Product development in the form of optimizing details is also one of the main purpose of this work.This is all done by making a 3D-assembly of all the existing drawings. After this is done new drawings will be made and added to the main assembly.

When I began my studies at Gammelkroppa forest school I started to think about an appropriate thesis. There was much discussion about the wild grazing damage during that period. I was at that time a part of Boo property and helped at their great hunts. They had the dual uses of wildlife and forest. I decided that I want to study how big the wild grazing damages are and if we can reduce them.

The aim of this Master?s thesis is to investigate the factors of children?s voluntarily reading in their spare time. We also want to know if the children choose non-fiction books for their voluntarily reading. The method as well as the empirical basis of this study is qualitative, with interviews of twenty-eight children in ages between 9 and 12 years. We conducted nine interviews with 3?4 children in each group.

The connection between fluorescence and color management still is a relatively unexplored area. Thefollowing composition analyses the theory that when printing on fluorescent ink jet paper using ICCprofilesa more yellow print will appear. In theory the ICC-profile compensate for blue light that fluorescefrom the paper with the complementary color, yellow. The human eye apprehands this fluorescentlight as white.When categorizing a number of ink jet qualities some tests to indicate change of color in the final printwere made. Five qualities were chosen for further analyses, each with different white point.

This report's aim is that by field measurements determine the function of Aprobo soundproofing material dB2 for reducing impact sounds, the measurements is done in ?the school for fine art? in Umeå also known as ?konstnärligt campus building nine?. The construction technique is used in areas sensitive to impact sound between different floors in the building. The measurement?s is also to do a function control of the buildings sound quality compared to Swedish and European standard when it comes to air sound, impact sound and reverberation time .

The aim of this Master?s thesis is to investigate the factors of children?s voluntarily reading in their spare time. We also want to know if the children choose non-fiction books for their voluntarily reading. The method as well as the empirical basis of this study is qualitative, with interviews of twenty-eight children in ages between 9 and 12 years. We conducted nine interviews with 3?4 children in each group.