Protecting the environment has with time grown to take a more central role in the society. Agriculture plays an important role in the society since this sector produces our food. More thorough research on how agriculture affects the environment is therefore motivated. This research can be used to improve the agricultural practice from an environmental point of view. This is something that both the farmers and the consumers can profit from. This study aims to form the basis for creating environmental indicators for use of nitrogen and energy on dairy farms. Twenty-three farmers in western Sweden have been interviewed about their farms, both organic and conventional. They produce milk with different intensity, defined as the amount of milk delivered (sold) per hectare of arable land.

Dagmar är en av de mest förödande stormarna, som med sina 4-5 miljoner kubikmeter vindfälld skog präglat skogssverige det senaste årtiondet. Skogsbolaget SCA förlorade stora mängder skog den 26 december 2011 till följd av stormen. Två av trädslagen på SCA:s marker är tall och contortatall, med olika förutsättningar vad gäller förmåga att motstå stormvindar. Tillhandahållna data kom från SCA:s inventering före Dagmar, under åren 2007-2011, respektive efter stormen, i februari-mars 2012. Inventerat data har sammanställts, bearbetats och analyserats i Microsoft Office Excel, MiniTab 16 och ArcMap 10.1.

I denna rapport undersöktes S&P 500 Energy Index genom multipel regressionsanalys. Modellerframställdes genom regression och baserades på data hämtad från börsen. Modellerna angavs iprocentuell ändring respektive absolut ändring. Validitet för varje enskild kovariat testades och en risknivå avgjorde om en kovariat skulle inkluderas i modellen eller inte. Detta ledde till två modeller med bättre kurvanpassning till den givna mängd data över det valda energiindex.

Webbaserade informationssystem är idag en vanlig metod för företag att effektivisera sin verksamhet. Genom att använda sig av webbapplikationer så som web-services, kan resurser och data enkelt delas inom företaget på lokal och även global nivå över internet, genom att dessa resurser och data hämtas via web-servicen från centrala databaser. Examensarbetet utfördes hos Syntronic Software Innovations (SSI) i Gävle och det är utifrån deras specifikationer och krav som systemet har utvecklats. Denna uppsats redogör för hur ett sådant webbsystem kan utvecklas, samt vilka tekniker och verktyg som finns tillgängliga idag lämpar sig bäst för ändamålet. För att kunna svara på dessa frågor kommer forskningsmetoden design science att användas.

The value of a company's employees is considered to be higher and more important for a business success than ever. Losing employees is not only a loss of valuable knowledge, it also implies a significant cost related to the recruitment of new employees. To attract potential personnel, it is important for the companies to understand how to communicate with talents. Choosing a communication medium for a job advertisement is not easy when new options constantly arise. Despite the development of new communication mediums and channels, such as social mediums, the traditional communication medias still remain available.

The purpose of this thesis is to examine how investments are justified in the Swedish data center industry, with a focus on cooling equipment. This is achieved through semi-structured interviews with 20 different interviewees. These interviewees represent different facets of the industry and facilitate an understanding of which factors, such as: investment costs, operating costs, reliability, environmental impact and the influence of external and internal actors, come into play and to which degree they impact the investment decision-making process. The results show that primarily low operating cost in the form of low energy consumption is the driving factor when it comes to the procurement of new equipment. A lower environmental impact is a positive side-effect of lower energy consumption.

The aim of the analysis in this essay will be divided into two cases. In the first, I will study the formation of a new State and why a geographic area of a country decides to make an secession. The focus will be on the secession of Biafra from Nigeria in 1967 and how the causes and explanations behind this secession, get in the Swedish literature as well as the international literature. In Case 2, I will use a explanation games, as a means to give pupils more understanding and to make it more clear, why a geographical area chooses to make a secession, and where I will use the secession of the Biafra from Nigeria as my example (Case 1). To more easily understand and answer  the question, why the geographical area of Biafra in south-eastern Nigeria chose to do an secession, I have chosen to study my Case 1 from a social and political context.

The purpose of this qualitative study has been; how social bonds are interlaced between the social worlds contained within the analytical division of ?outside Internet? and ?within Internet?. What happens with the social bond as the individual oscillate between this analytic bisection? This purpose raises important questions of the use of Internet in everyday life.A new stance is taken toward studying the Internets integration into everyday life. The focus is adjusted to the importance of emotions.

Testing and analysis of measurement data is a major part of the workday for development engineers within the section Fluid and Emission Treatment to assure the quality of products developed by Scania CV. The ineluctable variation and therefore uncertainty of results can be quantified and discussed with the use of statistical methods.The overall objective of this study is to examine how the competence of development engineers can be improved within the area of statistics. This has been done by relating the concept of competence with the use of statistical methods to analyse experimental data and by investigating which factors that influence the competence of the engineers. Observations of the daily operations, interviews and a focus group with development engineers and a workshop with management personnel, has been used as research methods in this study.The results show that the desired competence, from the perspective of the individual, consists of knowledge, motivation and support. It is important that none of these parts are neglected when the competence of engineers is to be strengthened.

According to Nosti (2012) banks target youths to find new customers by giving them special offers such as debit cards from a relatively early age. However, Moschis and Churchill (1979) point out that age can affect the level of knowledge in the consumer. Therefore, this essay focuses on youths as consumers. Specifically, youths? awareness of security risks in using bank tools such as debit cards or internet banks was studied.

Syfte: Syftet med uppsatsen är att undersöka hur företag, med hjälp av den moderna alltmer avancerade och utvecklade teknologin, systematiskt kartlägger konsumenternas köpbeteenden, genom s.k. business intelligence. Uppsatsen ämnar ta reda på hur teknologin appliceras hos företag samt hur och i vilken mån den data som samlas in används för att få konsumenter till önskade köpbeslut.Teori: Arbetets teoretiska kärna utgörs dels av ett teoretiskt ramverk, i vilket redogörs för business intelligence, samt ett avsnitt där teorier om konsumenternas köpbeteende presenteras.Metod: Arbetet har sin metodologiska utgångspunkt i en kvalitativ forskningsansats där fokus ligger på semistrukturerade intervjuer. För att besvara forskningsfrågorna har ett djupgående angreppssätt används.Empiri: Intervjuer med respondenter, i form av ämnesspecifik expertis, från IBM Sverige, HUI Research och Coop Sverige AB har genomförts.Resultat: Resultatet som presenteras i undersökningen visar på att konsumentförståelse i huvudsak genereras ur kundkortsdatan vilken fungerar som såväl informationsinsamlare som relationsskapare. Utöver det finns det ett växande intresse för kartläggning av rörelsemönster i butik.

Crisis communication can make a crisis turn into a double crisis. The purpose of the thesis is to analyze by which rhetorical means a double crisis can occur. With the Swedish zoo Parken Zoo as a specific example, this essay examines the crisis communication during the crises that started with the tv-show Kalla fakta. The tv-show revealed that Parken Zoo killed and slaughtered endangered and sacred animals. When asked about the specific animals, the head of the zoo gave different answers ? which contrasted with former employees testimony.

The main objective of this study is to divide a number of colorectal cancer cases into subgroups based on their molecular features using cluster analysis. The data used is supplied by a research group at Pathology, the Department of Medical Biosciences, Umeå University, and consists, after some preparation, of 455 observations which is a larger data set than many similar studies. The molecular variables that the clustering is based on are CIMP (CpG Island Methylator Phenotype), MSI (Micro Satellite Instability), BRAF- and KRAS-mutations. These are categorical variables and consequently the clustering method used is PAM (Partitioning Around Medoids) which is particularly useful with data on diverse variable level. The final analysis results in four subgroups that are represented by different combinations of attributes on the aforementioned variables.

 With the increases in fuel costs due to the depletion of the world oil reserves and the increase of greenhouse gasses as a consequence to using oil as a fuel many companies are looking to new and innovative ways to power their aircraft. One of these new ways to power an aircraft is using fuel cells powered using hydrogen and oxygen, thus producing nothing but water vapour and small amounts of nitrogen dioxide as well as trace amounts of other emissions. Both Boeing (1) and Politecnico di Torino (2) have shown that it is possible to build an all-electric aircraft powered by fuel cells. Both flights used small, two-seater aircraft and a constant between them was the loss of the co-pilot seat due to weight and lack of space. As this paper will deal with a commercial aircraft a primary concern is the cargo and passenger capacity and whatever impact switching propulsion system has on these.

Planet rendering plays an important role in universe visualization and geographic visualization. The recent tools and methods allow better data acquisition, usually with very high resolution. However in computer graphics, there is always the limitation on the resolution of geometry and texture due to numerical imprecision. Not many applications can handle high resolution data effectively.This thesis introduces, Implicit Surface Scene, a level of detail scene management inspired by dynamic coordinate system and SCALEGRAPH? which change over time depending on the current camera position relative to the planet surface.