A great number of empirical researches show that hedging is associated with higher firm value, particularly hedging interest rate and exchange rate. However, there is no clear support for value-added risk management hypothesis in the case of producers of commodities. Moreover, according to Shrand and Unal (1997), there are two types of risks, core business risks (or core risk) and homogeneous risks (or non core risks), which are based on a firm's comparative advantages with respects to the source of risk. Firm can earn economic profits for bearing core risks in which it has a comparative information advantage. Firm earn a zero economic rents for bearing non-core risks, where it has no advantage information than its competitors.

The main purpose of this C-essay is to answer the question: What have been the consequences and effects of the merit point system on language studies and the parties concerned (teachers, students and principals) during the school year of 2010/11?The merit point system is the result of a political decision and was implicated for the first time in the Swedish upper secondary school during the school year 2010/2011. Being a completely new phenomenon it is of great interest and importance to study its effects.The study in this essay also aims to verify, falsify or nullify two hypotheses very often referred to in the political discussions regarding the merit point system:The merit point system will replace affection and interest as main reasons for language studies in upper secondary school and cause a rectification amongst the students choices of additional courses.The merit point system will have a segregating effect upon society and make it harder for people to rise in society through education in the future.A verification of these hypotheses would imply the appearance of an increased rectification amongst students as well as an orientation towards an in the future more segregated society.The empiric material has been collected and examined with qualitative as well as quantitative methods (questionnaires and interviews) and belongs epistemologically to the phenomenological and hermeneutical traditions..

The need for roundwood transport capacity vary throughout the year. The need during a period is influenced mainly by the volume transported the period, the number of days during which transport can be carried out, seasonal variations in road conditions and the weight of the roundwood, and the origin of the wood (private forest owners/ forest companies). The need for transport capacity generally increase during the winter and in spring, after thawing. Lack of logging trucks combined with a lack of drivers for these trucks make it hard to hire extra help during periods of increased transport capacity needs. It is also very expensive to keep logging trucks for use only during these periods. In this thesis, two new concepts based on the partial transport by truck tractors have been examined, to find out the possibility for increased performance and flexibility.

There are several methods avaliable to find areas of interest, but most fail at detecting such areas in cluttered scenes. In this paper two methods will be presented and tested in a qualitative perspective. The first is the darg operator, which is used to detect three dimensional convex or concave objects by calculating the derivative of the argument of the gradient in one direction of four rotated versions. The four versions are thereafter added together in their original orientation. A multi scale version is recommended to avoid the problem that the standard deviation of the Gaussians, combined with the derivatives, controls the scale of the object, which is detected.

Couch grass (Elymus repens (L.) Gould) is a severe weed in Sweden, and since both the use of herbicides and cultivation should be decreased, it will become increasingly problematic to control couch. The present work is meant to, by literature studies and an experiment, give some answers to the question if cutting and competition can depress the growth of couch. The experiment was carried out in the growing season 2001 at Ultuna, Uppsala, in plastic boxes. The design was three-factorial randomised complete blocks. The factors were plant combination, nitrogen level and cutting strategy.

Interest for Mutual funds has been enormous in Sweden and since 1970 has savings increased from 300 million SEK to about 900 billion SEK. An important reason for this increasing is the strong development of the stock markets has got and, the impairment of the public pension and the increasing of necessity of the private saving..

Medlemsstaterna i den europeiska gemenskapen har fortfarande kvar sin behörighet inomområdet för direkt beskattning. Emellertid begränsas denna behörighet genomfördragsbestämmelserna om fri rörlighet och EG-domstolens dynamiska tolkning av dessa.För att en medlemsstat ska kunna fortsätta att tillämpa en inskränkande skatteregel måstebestämmelsen rättfärdigas genom ett tvingande hänsyn i allmänintresset.Uppsatsen syftar till att klargöra det gällande rättsläget avseende dels territorialitetsprincipensom rättfärdigandegrund inom EG-skatterätten, dels det av EG-domstolen använda uttrycketsäkerställandet av fördelningen av beskattningsrätten som rättfärdigandegrund. Uppsatsensyftar till att klargöra huruvida det rättsliga innehållet i de två termerna är detsamma.Uppsatsen utgörs av en redogörelse samt analys av EG-domstolens praxis vilket resulterar islutsatsen att det rättsliga innehållet i territorialitetsprincipen innefattas i innebörden avrättfärdigandegrunden säkerställandet av fördelningen av beskattningsrätten men att detsenare inte utesluter andra sätt, än i enlighet med territorialitetsprincipen, på vilkafördelningen av beskattningsrätten kan ske. Eftersom att dessa rättfärdigandegrunder tjänarsamma syfte samt att begreppet fördelningen av beskattningsrätten har en starkare ställningsom rättfärdigandegrund än territorialitetsprincipen, kommer sannolikt territorialitetsprincipenatt fasas ut och ersättas av säkerställandet av fördelningen av beskattningsrätten..

The purpose of this thesis is to show what advantages and opportunities social media offer for B2B-companies (business-to-business), and how they can be used for marketing communications.We have studied how companies can use social media, for example evolving the organization, developing products/services, staying up-to-date, building relations, creating customer loyalty and engagement, building the company?s identity and image, and affecting the buying decisions. We have also studied how B2B-companies can choose media channels, set goals, and measure the results.We have carried out interviews, through phone and visits, with four chosen companies that fit our criterias: Swedish B2B-company that is successful in social media.The result of the interviews show that B2B-companies use social media for various purposes, for example networking (to create and build long term relations with other companies) and to improve the company?s image among the end customers. Most of our interviewees reach their end customers (consumers) in first place and customers (companies) in second place, since many B2B-companies do not yet use social media.Half of our respondents mention that social media should not be used for advertising and campaigns (one way communication).

During the milling of Sandvik Coromant?s world leading Drill with replaceable inserts,the CoroDrill880©, burrs appear around the milled surfaces. The burrs are removedusing different methods, one of which is deburring with special brushing machines thatare integrated into milling cells. The machines of the type Sinjet, use a Siemensguidance system. The deburring results are not satisfying and manual deburring isrequired afterwards.

Fungi are everywhere around us and recently, there has been an increased interest in their role and importance in the forest. The fungi have several strategies to acquire energy and nutrition; one example is a mutual symbiosis with trees and plants - another being dissolving organic materials. Attempts have been made to better understand the circulation of nutrition in coniferous forests, and how fungi cooperate. Trees and plants have adapted with mycorrhizae and are now interdependent which is important to consider in forestry. A great number of fungi depend on dead wood and old trees to set fruiting bodies and spread further. These fungi also create environments for other species, such as birds and insects. The vegetation of a forest is determined by a series of factors; tree species, how old the forest is, soil type, as well as the ability of the fungal spores to spread and establish. Furthermore, in determining vegetation, the fungi?s ability to compete in the soil matters. These factors are nearly unexplored. Researching fungi knowledge and interest, a survey was distributed to five groups of people. The groups included forest owners, high school teachers, high school students, senior citizens, and a fifth group - ?o he ? - consisting of people of mixed ages and backgrounds.

Companies that are facing the global market are put in to new challenges in order to streamline its business. One industry that has realized that changes are necessary is the construction industry, it is an industry witch is far behind the development of introducing information technology-tools systems in there business. It has shown there is a relation between high IT usage and high productivity, which is one of the reasons to why companies in the construction industry should purchase a business system especially for procurement. However, companies that have purchased a business system are facing difficulties in having their employees using it for its purpose. People react differently to changes and that?s why variations in quantities exist for usage of information technology-tools.

The purpose of this study has been to investigate how socialworkers describe their attitudes towards reporting childabuse to the police and if they make different decisions when they believe the violence to be honour related and how they handle these questions. The main questions are; How does socialworkers describe their and their colleagues attitudes towards reporting childabuse to the police and when do they believe they should report? Do they describe honourviolence as a specific kind of violence that should be lifted and in what way does it affect their work? The study is written from a legal sociologist perspective with a qualitative approach. Four socialworkers were interviewed and the interviews were analyzed with an anti-racist theory and with the theory about freedom of action.The conclusions is that the socialworkers mostly report childabuse to the police when the violence is physical. This means that children who describes to be subjected to psychological violence, including honourviolence, has poor legal security.

The aim of this thesis is to investigate what information needs arise from the interest in music, which sources are preferred, how this information is sought and what part does the public library play in providing music materials. Brenda Dervin`s Sense-Making theory is what serves as a theoretic framework for this study. A qualitative approach was undertaken in the investigation and nine interviews were conducted with people interested in music. Findings indicate that different ways of acquiring information are used depending on the situation in which the information is needed and also what kinds of music people prefer. The main findings of this study suggest that people interested in music are keen to constantly discover new music to perform or listen to.

The current thesis is on the rule of law and how the principles of the rule of law are met in thenew Swedish migration process. The migration process has been subjected to criticism duringseveral years and on different occasions. The migrations process is viewed through a ?rightsof the child? perspective, foremost to seek if the rights of the child are met. The children are avulnerable group, not the least in the process of migration.

Oilseed rape is an important crop in Sweden and is grown on about 90000 ha today. The interest in oil seed pro-duction is increasing because of growing demand and high prices for oil seed both in Sweden and Europe. However, an increased intensity in the oil seed production can bring higher risk of yield losses due to fungal diseases. The purpose of this study was to investigate what different fungi are associated with oilseed rape under field conditions and if their incidence is correlated to crop establishment problems. This study was carried out in three parts: 1) investigations on fungal community structure in roots and rhizosphere soils from young spring- and winter rape plants sampled in failed respectively good establishment patches in four fields, 2) investigations on the pathogenicity of fungi isolated from oilseed rape in controlled environment and 3) investigations on the effect of different fungicide seed treatments on germination and early plant development in a field soil naturally infested with damping off- and Verticillium wilt pathogens. The studies on community structure using a combined approach of standard fungal isolation techniques and DNA based methods revealed a high fungal diversity in three out of four studied fields of spring rape and winter rape. For some unknown reason, very few fungal species were identified from the fourth field.