In the year 1783 a fissure eruption from Laki in the southern part of Iceland produced a large amount of volcanic gases during a period of eight months. The volcanic gases and aerosols spread across the northern hem sphere due to ideal weather conditions and had a substantial impact on the environment, human health and also climate effects. This, so called dry fog, caused severe health problems, which led to death casualties, killing animals, crops and other vegetation. The consequence was a widespread famine which was aggravated by a hard and long winter in 1783/84. Analysis shows that the Icelandic volcanoes are the primary risk to produce dry fog that can affect Sweden.

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.

Sheep have played a very important part in rural history. In Sweden there were many kinds of small native breeds, kept for their meat and fleece. Women cared for the flock that often had very little to feed on during the cold and sometimes harsh winter months. This meant that these sheep over time acquired special phenotypic properties depending on the environment they lived in, and easily fed compared to modern breeds kept for meat. Most of these sheep have since become extinct.

The population of Grey Partridge is decreasing worldwide as a result of anthropogenic activities. Increased agricultural production, requiring homogenous farming landscapes and increased use of pesticides are believed to be the main factor causing population declines in the Grey Partridge. Actions to enhance Grey Partridge populations are available; however, those actions are vain if the acceptance to conduct them is low. To gather information about acceptance among farmers, hunters and the County Administrative Board towards 18 available actions enhancing the Grey Partridge population, nine face-to face interviews were conducted as an exploratory case study. The results showed that willingness to conduct enhancing actions differ between and within the groups of stakeholders.

Finlands kamp mot det mycket större Sovjetunionen under vinterkriget skildras i denna uppsats i form av en fallstudie av slaget i Suomussalmi. Det görs även en beskrivning av de militärteorier som är centrala för analysen i uppsatsen.Finlands sätt att strida och nyttja taktiken under detta slag är tillämpbart för att studera militärteorier som Försvarsmakten idag använder i sina doktriner för markarenan. Teorierna som slaget analyseras kring rör manövertänkande, krigföringsförmågan och de taktiska grundprinciperna.Uppsatsen undersöker i vilken omfattning den finska sidan använde sig av manövertänkande och vilka förmågor som spelade en avgörande roll i slaget. Även sambandet mellan manövertänkande och de taktiska grundprinciperna undersöks.Slutsatserna visar att rörligheten var den förmåga som spelade störst roll för den finska sidans framgångar. Det framkommer också att många finska chefer använde sig av manövertänkande.

The purpose of this master?s thesis is to contribute to the development of business relationships between a supplier and its customers. The research area and research problem was further developed into three research questions. The research questions concerns the following subjects: the substance of business relationships and dimensions within relationships management that can be used in order to contribute to the development of a company?s business relationships.

SCA har idag cirka 280 000 hektar beskogad med contortatall (Pinus contorta Dougl. ex Loud. var. latifolia Engelm). Stora delar av den arealen har kommit in i, eller är på väg in i, gallringsbar ålder.

Pharmaceuticals that are found in marine ecosystems are a threatening environmental concern, which is known to harm both animal and plant life. One of the reasons for this problem is that the waste water treatment techniques are not optimized to clear waste water from its pharmaceuticals contain. In this master thesis four Swedish treatment wetlands were studied, and their ability to reduce numerous pharmaceuticals in waste water. The four treatment wetlands that were studied were those in Oxelösund, Trosa, Nynäshamn and Eskilstuna. Two ecotoxicological tests and chemical analysis were used.

Benthic invertebrates play important roles as feeding resources for many organisms in different food webs. Shifts in predation of these organisms can generate cascading effects and potentially lead to the disappearance of one or more species from a site. Cascading effects can bring impacts to organisms who aren?t even directly involved, why studies in this field are important for understanding sudden changes in ecosystems. I examined the predation from fish and waterfowl on benthic invertebrates in the shallow and eutrophic Lake Tåkern in the plains of Östergötland County, southern Sweden.

?Boverket? the Design Regulations in Sweden, also called BKR has for a long timebeen the mandatory standard that has guided and regulated construction design. Butat the end of 2010 BKR was replaced with Eurocode. This report deals with thecomparison of these two standards when it comes to wood construction. Duringwinter 2009/2010 there were many roof collapses due to excessive loads on theroofs across Sweden.

During late autumn/winter in the years of 2005/2006 and 2006/2007 a questionnaire study was made in Västra Götaland county in the south west of Sweden. Inspectors responsible of animal welfare answered the questionnaires during their routine visits to different horse stables in the county. The questionnaires contained questions about the number of horses at the farm, hoof condition, body condition, how often the horses were fed outside and the pasture condition. The purpose of this study was to investigate if a connection could be seen between environmental factors and health factors within the horses in this material. The connections that were analysed were between; hoof health and pasture condition, how many times the horses were fed outside and the body condition and between the number of horses in the pasture and pasture condition.

Syftet med uppsatsen är att formulera en utvecklingsstrategi för Piteå med målet att bli en framgångsrik skridskodestination. Frågeställningen blir således, hur kan Piteå bli en framgångsrik skridskodestination? Vi använde oss av en kvalitativ metod och för att samla material så utförde vi fem stycken intervjuer och bearbetade relevant litteratur kring destinationsutveckling. Vi arbetade efter en abduktiv ansats som står för en arbetsprocess som går från verklighet till teori, till verklighet och till teori igen genom att pröva formulerade teorier i verkligheten. Resultatet analyserades med förförståelse kring upplevelseproduktion och -ekonomi och vi kom fram till slutsatsen att en utvecklingsstrategi för att utveckla Piteå som skridskodestination bör innehålla arbetssätt för att; ?Arbeta med destinationsutvecklingen på en kommunal nivå ?Utföra- och tillämpa en riskanalys och en beredskapsplan ?Bibehålla en ekonomiskt, social och miljömässigt hållbar destination ?Skapa en image för Piteå som vinterdestination ?Erbjuda evenemang av god upplevelsekvalitet Vi har kommit fram till att Piteå har stora möjligheter att bli en framgångsrik skridskodestination, för att åstadkomma detta krävs det att lokalbefolkning, kommun och näringsliv samverkar inom destinationen Piteå mot ett gemensamt mål.

The construction process which is used today while constructing residential buildings has for along time remained unchanged. Unfortunately the development process has gone away frombecoming industrialized and instead most of the work is done at the construction site. In thisrespect this is a worse alternative because the project outcome will be more expensive and theconstruction time will be longer. Skanska?s vision is to have a process which is more like the oneused in small residential buildings which is fully industrialized.The constructing process for residential building involves more parties and therefore it becomesmore complicated.

Energy costs are high nowadays and that is the reason why the energy consumption needs to become as small as possible in most of the companies. To accomplish the small energy usage one needs to map the energy flows, study them and monitor them. One method that can be used for this is energy balance calculation. The method gives an opportunity to separate different energy flows and see where each flow is heading. There is also another method which is more advanced than energy balance calculation.

Heavy duty vehicles often have problems with traction during the winter periods. For vehicles that can lift tag axles it is possible to increase the normal force on the driven axle by lifting one or more tag axles, this will then increase the propulsive force of friction. This however increases wear on both road and vehicle. A possibility to reduce the wear while achieving nearly equivalent traction compared to lifted tag axles is to allow the vehicle to regulate the normal force by lowering the pressure in the air suspension associated with the tag axles or by the lifting of these axles. The vehicle would then by itself be able to set just the right amount of normal force on the drive wheels to avoid unnecessarily high normal forces while maintaining sufficient traction.The purpose of the report is to find out which parameters affect heavy duty vehicles when driving on slippery slopes and how traction can be improved.