The aim of this report was to investigate the hypothesis that Norway spruce (Picea abies L. Karst), planted on poor ?Scots pine? stands will not have sustained growth during the whole rotation, due to water deficit in the closed stands. In order to investigate this hypothesis, data from 10 Norway spruce stands in southern-eastern Sweden were collected. In 10 plots in each stand, diameter and breast heights were measured on every tree.

Avstånd och bevarandet av avstånd är centrala begrepp i denna uppsats. Det är nämligen bevarandet av avstånd som ger symmetriska kompositioner, s. k. isometrier. Ett symmetriskt tapetmönster innebär att ett grundläggande motiv upprepas över hela tapeten.

The use of fossil fuels such as coal and gas are a contributor to the global warming. The climate change is a worldwide problem with far reaching consequences that is believed to be very expensive. The United Nations has been introducing a framework convention on climate change. One component of the convention is the Kyoto protocol. The protocol is obligating the developed countries to decrease their emissions of greenhouse gases by 5.2 percent during the time period 2008-2012.

Stands where pre commercial thinning has been ignored or inadequate often tend to have high stem density and low average diameter when they reach heights of thinning. In such stands, it can often be expensive to do a conventional pulpwood harvest as a first thinning. This study investigates the development of the stands and the economic outcome of forest fuel extraction, or a combined harvest as alternatives to the ordinary pulpwood harvest. Simulations in Heureka StandWise were performed for two thin and dense stands, which were constructed by data from the Swedish National Forest Inventory. The simulations show that the extraction of forest fuel in first thinning at an early stage can provide higher net revenue compared to conventional pulpwood harvest at the same time or later.

The tomato is an important crop worldwide, and in recent years it has received great attention due to its rich content of carotenoids, which in studies indicate to have health benefiting properties. Many studies have been done in this area of research and in how to optimize the carotenoid content in tomatoes and tomato products. The objectives of this essay were to summarize present data in this field. The results were as follows:There are nine different carotenoids identified in tomatoes. Lycopene and ?-carotene are the ones that have been given the greatest attention.

Den enskilt viktigaste beståndsdelen för varje företags framgång och överlevnad är medarbetarnas förmåga att lösa de uppgifter de ställs inför. Förmågan kallas ofta med ett sammanfattande ord för kompetens. Kompetens är dessutom en av de viktigaste resurserna i ett företag. Med rätt kompetens kan ett företag utveckla konkurrensfördelar. Ju svårare det är för andra företag att imitera ett företags kompetens desto längre perioder har företaget en överlägsen konkurrensförmåga.

Barns föreställningar kring naturens olika fenomen är många. Ett fenomen som alla barn upplever varje dag är övergången från dag till natt och tvärtom. För att kunna ge barn förklaringar om hur saker och ting sker och hänger samman, är det viktigt att lyssna på deras föreställningar för att sedan bygga vidare på dessa. För att ta reda på barns föreställningar kring fenomenet dag och natt, har enskilda semistrukturerade intervjuer genomförts med elever i årskurs tre. Resultaten visar att eleverna hade förståelse för att solen, månen, jorden och andra planeter är i ständig rotation.

The tomato is an important crop worldwide, and in recent years it has received great attention due to its rich content of carotenoids, which in studies indicate to have health benefiting properties. Many studies have been done in this area of research and in how to optimize the carotenoid content in tomatoes and tomato products. The objectives of this essay were to summarize present data in this field. The results were as follows:There are nine different carotenoids identified in tomatoes. Lycopene and ?-carotene are the ones that have been given the greatest attention.

The Swedish military is trough the rescindment of military conscription on the 1 July 2010 taking a defining step towards a professional army. They stand before big recruitment challenges, not least to its foreign missions. This thesis aims to examine the motivations of individuals for going on missions abroad with the military. The thesis is built on seven qualitative interviews with individuals who have done foreign missions and is planning further rotations. The theory used is Fabrizio Battistellis motivation theory and a form of discourse analysis.

Trakealkollaps är relativt ovanligt förekommande hos hästar men är något vanligare hos småvuxna ponnyraser. Sjukdomen har ett progressivt förlopp och är ofta långt framskriden innan respirationssymtom som missljud, hosta och dyspné uppkommer. De tillgängliga behandlingsalternativen ger sällan tillfredsställande resultat och prognosen vid höggradig kollaps med grava symtom får anses som dålig. Syftet med den här studien var att undersöka om och i så fall i vilken grad trakealkollaps påverkar hästens användbarhet, detta gjordes genom att undersöka om det fanns någon skillnad i arbetstolerans och lungfunktion mellan en grupp friska shetlandsponnyer och en grupp shetlandsponnyer med trakealkollaps. Den friska gruppen bestod av tio ponnyer och gruppen med kollaps av fyra ponnyer, varav tre hade trakealkollaps av grad 3 och en av grad 2.

A major issue that has been a subject for quite some time is whether there will be a scarcity of metals in the bedrock in the future and whether or not we might end up with a problem similar to that of the big oil crisis in the mid-seventies. Following the oil crisis many oil companies started up with risk management to control future risks. This work presents how Swedish mining companies work with risk management to handle risks that might come up in the future due to metal scarceness. How Swedish mining companies look at the possible metal scarceness and if they use risk management in their decision-making process is studied. By doing interviews with Swedish owned mining companies it was found that the mining companies did not see the future metal scarcity as a risk, even though 2/3 of the companies acknowledged the scarceness to be a reality.

The Swedish e-commerce has been established for about 25 years, with strong growth from the millennium onwards. The companies that are active within it has many different backgrounds. Mail order companies were some of the early adaptors but today it is also common for companies to first create the e-commerce part of the business, before opening a store. A long list of companies has over the years come and gone, the rotation of the e-shops that are popular have constantly changed. We asked ourselves why.We wanted to get an understanding of the Swedish e-commerce, both from a business perspective and from a customer perspective.

The availability of digital models of real 3D objects is becoming more and more important in many different applications (e-commerce, virtual visits etc). Very often the objects to be represented cannot be modeled by means of the classical 3D modeling tools because of the geometrical complexity or color texture. In these cases, devices for the automatic acquisition of the shape and the color of the objects (3D scanners or range scanners) have to be used. The scanner presented in this work, a Shape from silhouette scanner, is very cheap (it is based on the use of a simple digital camera and a turntable) and easy to use. While maintaining the camera on a tripod and the object on the turntable, the user acquires images with different rotation angles of the table.

Sitka spruce (Picea sitchensis) is not considered to be a native species to Swedish forests. It´s origin is the pacific coast of Northern America, an area that is dominated by a coastal climate which makes it likely to believe that it would be well suited for growing in the south-west of Sweden. This study aims to investigate the gain in production that can be reached by growing sitka spruce instead of Norway spruce (Picea abies) in the county of Halland. A regression model based on data from forest experiments was produced to explain the gain in production. This model was based on elevation and annual precipitation. The model was then used to create a map layer in arcGIS that shows the gain of volume in comparison to Norway spruce in percent. An analysis was carried out to find what share of the forestland in Halland county that fell into four different classes of production gain.

Wavecraft AB develops medical equipment for heating of organic synthesises. The heating is done with microwaves, which improves the process in both speed and accuracy compared to the more traditional methods where heating elements are used. This report discusses the developement of an automatic lid mechanism for one of Wavecraft's product prototypes. The company assumes that the final product will be integrated by customers into fully automated systems, and the upgrade from a manually to an automatically controlled lid is therefore an important step in the product's developement process.The first stage och the project was an idea generation process. The ideas generated here were organized into five different concepts of which the best one was selected through the use of a concept matrix.