I tidigare debatter om marknadseffektivitet har diskussioner förts mellan två läger där den ena sidan hävdat att marknaden är effektiv och den andra sidan, ofta med säte i ekonomisk beteendevetenskap, hävdat att systematisk riskjusterad överavkastning går att erhålla. På senare år har diskussionen utvecklats till att utröna om och hur graden av marknadseffektivitet förändras över tid. Den andra sidan gör nu kopplingen att Effektiva marknadshypotesen, en av de ekonomiska teorier som fått störst genomslag, kan samexistera med ekonomisk beteendevetenskap och förklarar att graden av marknadseffektivitet förändras över tid. Denna koppling kallas för Adaptiva marknadshypotesen och är i stor utsträckning vad denna uppsats kommer att behandla.En effektiv marknad innebär att aktiekursen alltid återspeglar det sanna värdet av företaget. En privat investerare gynnas på så sätt av en effektiv marknad då en aktie inte kan vara felaktigt prissatt.

This master thesis consists of the creation of shock absorber models for percussive rock drills. A model of the rock was also developed. These models were connected to existing models of the rock drill to create a complete simulation of the rock drilling process.When the models had been created the rock model was evaluated by comparison with measured values from lab tests. The verified rock model was then used to evaluate the shock absorber models.Four new shock absorber concepts have been developed. Three of these have been modelled, while the fourth have only been sketched and described.The evaluation of the models showed the following:? Simulations of the single shock absorber don?t correlate to reality very well.

Public libraries have an important roll of making information accessible to all people. This democratic right supports the cultural development in our society. When public libraries build websites offering information and services it can sometimes cause obstacles for impaired users. It is therefore our purpose to evaluate a selection of websites and library plans to examine how the libraries work with accessibility for these users. This thesis is based on theories of cognitive and human computer interaction, and information architecture.

The aim of this bachelor thesis has been to investigate some of the materials present in and onprinted papers which might be suitable for analysis. A brief history of paper making and somepigments were studied after which the theory of some of the available methods for technicalanalysis were summarized. Two works of art on paper were chosen for a closer examination,both are woodblock prints but of different composition and origin. The investigation wasmade to exemplify some of the common techniques applied on works of art. There were twoaims in these examinations.

The high viscosity of barley material makes starch isolation problematical using regular methods established for cereals. An adjusted starch isolation method has been set up for barley, based on fractionation and purification. The focus is on attaining truly representative isolates of six flour samples selected for widely differing characteristics within the research program BarleyFunFood (BFF). Beside establishment of the method, this diploma work aspires to serve the BFF with isolated material of sufficient yield valid for further starch characterisation. A pre study was conducted evaluating available wet mixing equipment, experimental conditions and mode of procedure.

The thesis is aiming to investigate what happens in the customer-service worker interaction when the service worker is wearing religious attributes. In order to operationalize this the Muslim head scarf, hijab, is chosen as stimuli. Reviewing previous research and theory in this field, it is clear that people have a preference for people that they perceive to be like themselves, this is referred to as homophily. Further on, the study investigates the ethnicity dimension of the service worker customer interaction. Theoretical areas of attractiveness and color are also investigated.

Addressing increasing global environmental problems requires greater resource efficiency, and one way of working towards this is through industrial symbiosis. Industrial symbiosis means that companies collaborate through sharing of resources for collective benefits. The documented benefits of working with industrial symbiosis indicate that there is potential for companies to operate commercially with facilitation of industrial symbiosis. An interesting company to study within this context is Econova. Econova operates within the recycling and gardening industry and has been identified as a possible catalyst for industrial symbiosis.

In order for a business management to be able to make informed decisions for their companies need enterprise management system regularly checked by internal audits. The aim of purpose with this work was to develop a working manual for integrated internal audits. This was done through a litterature study and interviews with auditors. An in-depth interview was conducted with an experienced auditor to get more understanding and depth of the internal audits process, and how the manual could be designed. Discussions were held with the person responsible for environment, health and safety at Swedspan Hultsfred to adjust the manual to the company?s internal management system.

Non-profit organisations play a very important role in the Swedish civil society, both economically and for the employment policy. The organisations pursue various activities such as, activities aiming at social needs, sport activities and activities contributing to the political life. Depending on what activities the organisations practice different tax rules follow.A person who pursues commercial activity constitutes a taxable person within the meaning of the Swedish VAT act. The definition of commercial activity is an activity which is practiced independently, professionally and with an object of making a profit. The activity must be practiced regularly and to a certain extent to qualify as commercial.

The purpose of this thesis is to study to what extent the methodological theories are being reflected in the construction of user surveys at public libraries in Sweden. The study has been conducted as a qualitative literature study in two parts. The first part is an examination of literature concerning survey methodology; the second part is a study of three user surveys conducted at Swedish public libraries after 1995. Our main results indicate that the theories about methodology are followed in part, though it cannot be determined whether this is due to any actual methodological studies, common sense, or just copying other surveys. In our study we have found some areas of user survey construction that need further attention and that would benefit from more extensive methodology studies on the part of survey designers.

An environmental review has been carried out at FORIA AB, a transportation- and machine service company, to analyze the company?s environmental aspects from the transportation segment. This report describes the essential background and the methods of identifying and evaluate the environmental aspects. It also describes how the work with the environmental aspects often vary between different actors. The design of the ISO 14001 is intentionally broad in order to apply on all sorts of activities and organizations.

A discussion regarding the alignment and measuring procedure of propeller shafts has arose due to the competing situation in the industry, and higher standards from the customers. An estimation of the deflection of shafts in different alignment situations has been made with help of FEM-analysis and beam theory. This has been analyzed and compared with the experience from Rolls-Royce AB suppliers of shafts. An evaluation of measuring protocols has been made and the result indicates that there is a correlation between the deflection of the shaft and the run out. Results from a measuring test performed by Balino, Spain, verifies this conclusion.

This paper deals with the opportunities for the technique of condensation, for wood fired household heaters, on the Swedish market. In this project the condenser is preceded by a scrubber and both energy exchange and separation of unburnt particles have been studied. The facility studied is connected to a wood stove at 30 kW. The tests would show that the effect from the stove never reached above 16 kW. This might be a result of the low temperature of the water going into the stove, from the condenser. In addition to this the wood was not of highest quality and the stove could have needed some maintenance before the tests.

This thesis work has been carried out at the consultant company Pöyry Sweden AB in Norrköping, whom performs the task for E.ON heating Sweden AB, Händelöverket in Norrköping. The report shows methods to manufacture slurry consisting of fly ash and water. The slurry shall be pumped into several former oil storage rock shelters that E.ON has put into operation for the specific purpose. The ash mixture also develops hydrogen gas in contact with water.The work has aimed to produce different suggestions of methods and equipment that can be used for the objective. Mixing method and security issues were in centre while working with the suggestions.

This study highlights the differences in articulation, nasality and intelligibility between twenty 16-year-olds and thirteen 19-year-olds born with isolated cleft palate and control groups. The test groups are compared in a longitudinal perspective and based on earlier evaluations of velopharyngeal impairment. Significant differences were found between test groups and control groups using quantitative comparisons based on SVenskt Artikulations- och Nasalitets-TEst and NasometerTM. The longitudinal comparison also showed a positive but not significant development of the speech. Differences emerged in the comparisons based on velopharyngeal impairment but no significance analysis was made.