This study is made on assignment by the local board of forestry in Skåne, Blekinge and Halland. The change of the forest law 1994 brought a new type of management plan. A more active planning was introduced in order to equate the environment goal with the production goal. The purpose with this study is to give a better picture of how planning for nature conservation in production forest is made and to develop support for selection of silviculture methods for stands with combined goals. With combined goals means production forestry with a reinforced consideration to both nature and culture, called PF-classified stands. This was done by: ? Describing silviculture models from the literature that are possible to use for stands with combined goals. ? Describing silviculture models that is used in practice in stands with combined goals. ? Describing how the classification of stands with combined goals is used. Which means, were in the terrain, with which frequency and in which type of forest PF-classification is used. ? Comparing differences and similarities of theoretical and practical used models. The study was done partly as a literature study and partly as an interview study of forest planners.

There are five endemic populations of migratory Atlantic salmon (Salmo salar, Salmonidae) and brown trout (Salmo trutta, Salmonidae) remaining in Lake Vänern, whereof two are salmon and three are trout. There is one population of each species in Klarälven, also one of each in Gullspångsälven and there is a population of trout still remaining in Tidan River. Since the beginning of the 20th century endemic populations of salmon and trout have either vanished or declined dramatically due to the construction of hydropower in the rivers around the lake, and still today the future of the remaining populations remains uncertain. To manage salmonid fishes effectively more knowledge of their ecology throughout their different life-stages is needed. A large part of the Lake Vänern salmonoids lives are spent in the lake, where a mayor mortality factor is recreational fishing, especially angling.

Aquatic organisms are usually not exposed to single substances but rather to mixtures of toxicants in streams located in agricultural areas. The transport of pesticides used in the agricultural area in Sweden is monitored with continuous environmental supervision every year. During 2002-2008 an average of 10 pesticides were found in each sample and 40% of the samples contained substances with concentrations higher than the Water Quality Standards. Chemical risk management is normally based on single-test evaluations. A problem when assessing mixture toxicities is that the constituents and concentrations of pollutants in the environment vary greatly.

The transportation sector is the only sector of the Swedish society that is still increasing the emissions of carbon dioxide and other green house gases. Diesel fuel represents one of the fuels that contributes to these emissions and the use of diesel fuels is increasing every year. The main purpose of this study was to make an estimation of the current business situation for producers of liquid diesel biofuels in Sweden such as biodiesel, synthetic diesel and crude tall diesel and examine the forces of competition of the industry today and its future prospects. The study revealed that the rivalry among the existing firms was low mainly due to the geographical spread of the companies. Moreover the success of the biodiesel industry was influenced by a long-term guarantee of the tax exempt for biofuels and by the price level of petroleum diesel.

The largest project at the AICG lab at Linköping University, Cognitive models for virtual characters, focuses on creating an agent architecture for intelligent, virtual characters. The goal is to create an agent that acts naturally and gives a realistic user experience. The purpose of this thesis is to develop and implement an appropriate learning model that fits the existing agent architecture using an agile project methodology. The model developed can be seen as an online unsupervised reinforcement learning model that enhances experiences through reward. The model is based on Maes model where new effects are created depending on whether the agent is fulfilling its goals or not.The model we have developed is based on constant monitoring of the system.

A common goal in practical forest management is to maximize the yield, measured in economical terms. When a forest stand is thinned a so called inoptimality loss can arise due to non-optimal decisions. This means that the selected management schedule results in a lower net present value than the optimal one which lowers the profitability for the forest owner. Holmen Skog uses the term tract which means an aggregation of stands made before a management action. A tract should be delineated in different tract parts in connection with pre-thinning planning if there is different bearing capacity within the tract, different thinning grades should be used or if the tract contains a weaker part that should not be thinned.

Aquatic organisms are usually not exposed to single substances but rather to mixtures of toxicants in streams located in agricultural areas. The transport of pesticides used in the agricultural area in Sweden is monitored with continuous environmental supervision every year. During 2002-2008 an average of 10 pesticides were found in each sample and 40% of the samples contained substances with concentrations higher than the Water Quality Standards. Chemical risk management is normally based on single-test evaluations. A problem when assessing mixture toxicities is that the constituents and concentrations of pollutants in the environment vary greatly.

Klimatologiska förändringar har en direkt påverkan på glaciologiska system genom att förändra glaciärers termiska struktur. Subarktiska Skandinavien har upplevt en klimatologisk uppvärmning sedan 1980-talet och Tarfaladalen har under samma period uppvisat en ökad vintertemperatur med 1°C. Ökade vintertemperaturer medför förändringar i glaciärers temperaturfördelning, då högre temperaturer ger en längre smältsäsong. Storglaciären i Kebnekaisemassivet i svenska Lappland har en polytermal temperaturfördelning med ett kallt ytskikt i ablationsområdet. Det kalla ytskiktet har förtunnats med 22% sedan slutet av 1980-talet och då ingen ökad sommarablation har kunnat konstateras kan den ökade vintertemperaturen vara en indikator för att isyttemperaturen är styrande för det kalla ytskiktets bevarande.

All over the world the urbanisation increases at the expense of green areas. Many plants and animals are endangered today because their habitats gets smaller or disappear. The green areas that are left in city centres and suburbs are often small and surrounded by roads and buildings. Despite this, several studies have shown that these small green areas may house large biological diversity.This project aims to study the biological diversity in small green patches in residential areas. The study has been carried out in Råsunda in Solna municipality (Stockholm county) during the period May?July 2006.Three equivalent areas (5000?10 000 m2) with quite many old oaks were chosen for the study and inventoried for birds and saproxylic insects.

All over the world the urbanisation increases at the expense of green areas. Many plants and animals are endangered today because their habitats gets smaller or disappear. The green areas that are left in city centres and suburbs are often small and surrounded by roads and buildings. Despite this, several studies have shown that these small green areas may house large biological diversity.This project aims to study the biological diversity in small green patches in residential areas. The study has been carried out in Råsunda in Solna municipality (Stockholm county) during the period May?July 2006.Three equivalent areas (5000?10 000 m2) with quite many old oaks were chosen for the study and inventoried for birds and saproxylic insects.

Rosengren, Anna, 2006: Samiska kvinnor och osynlig historia. En komparativ studie av svenskar och samer vid 1600-talstinget. (Saami Women and Invisible Histories. A Comparative Study of Swedes and Saamis in Court during the 17th Century.)The purpose of the paper is to gain new knowledge about Saami women in the 17th century using court protocols in the Luleå and Torneå Lappmarks, supplemented by secondary sources.Saami women did not write their own history, nor did Saami men. Information available about Saami is written by male representatives of the Swedish crown and church.

Share repurchases in Sweden has since legalization in 2000 gained momentum. Similar to other corporate events, there are studies that examine whether this affects the share price performance. With studies in the U.S. that measured excess returns of approximately 3,5 percent on the announcement day; Swedish buybacks, holding a tighter regulation is of interest to study. The Stockholm Stock Exchange regulation regarding reporting is also similar to the Stock Exchange in Hong Kong.

European Union has made a new decision that all new built houses by 2020 shallbe near-zero energy houses. Boverket?s definition of near-zero energy housesintends buildings with good energy performance in which a proportion of theamount of energy that must be added to the building is made of renewable energy.Passive House is a set of requirements from FEBY designed to build energyefficient buildings. This is achieved by reducing loss of heat through the buildingenvelope and to take advantage of the passive heat from solar radiation,installation and heat sources like people living in the house.This project has been made with help of Anebyhus and one of their model houseshave been examined from the report?s issues, including Anebyhus?s energyperformance, requirements for the manufacturing and assembly, how theenvelope must be improved to fulfill the requirements for the Passive House andwhat energy calculation programs are available on the market.The report aims to provide solutions for energy efficient houses that are adaptedfor production of house building.Two visits to Anebyhus has been done to study their manufacture and assemblyof building elements.

Rosengren, Anna, 2006: Samiska kvinnor och osynlig historia. En komparativ studie av svenskar och samer vid 1600-talstinget. (Saami Women and Invisible Histories. A Comparative Study of Swedes and Saamis in Court during the 17th Century.)The purpose of the paper is to gain new knowledge about Saami women in the 17th century using court protocols in the Luleå and Torneå Lappmarks, supplemented by secondary sources.Saami women did not write their own history, nor did Saami men. Information available about Saami is written by male representatives of the Swedish crown and church.

Rosengren, Anna, 2006: Samiska kvinnor och osynlig historia. En komparativ studie av svenskar och samer vid 1600-talstinget. (Saami Women and Invisible Histories. A Comparative Study of Swedes and Saamis in Court during the 17th Century.)The purpose of the paper is to gain new knowledge about Saami women in the 17th century using court protocols in the Luleå and Torneå Lappmarks, supplemented by secondary sources.Saami women did not write their own history, nor did Saami men. Information available about Saami is written by male representatives of the Swedish crown and church.