Active headsets have been on the market for years and now it is time for something else to enter the stage. The technology of active noise reduction can for exmple also be used in ventilation systems for reducing ventilation noise. An active control system principally consists of four important components, namely the downstream error microphone, the upstream detection or reference microphone, the digital signal processor (DSP) and a loudspeaker. The upstream reference microphone listen to the primary ventilation noise and sends it to the DSP which makes a phase shift to the signal and sends it to the loudspeaker. The loudspeaker sends out the opposite waveform of the incoming one and reduce the primary ventilation noise.

The purpose of my study is to determine students? attitudes to the Natural Science subject. I want to contribute to scientific discourse about different learning styles that can respond to childrens? requirements in teaching as well as to determine the student?s experience of learning styles. The studies were carried out at an upper secondary school in Stockholm (spring term 2011) for three different classes.

In situ sekvensering är en metod som kan användas för att lokalisera differentiellt uttryck av mRNA direkt i vävnadssnitt, vilket kan ge viktiga ledtrådar om många sjukdomstillstånd. Idag förloras många av sekvenserna från in situ sekvensering på grund av det kvalitetsmått man använder för att säkerställa att sekvenser är korrekta. Det finns troligtvis möjlighet att förbättra prestandan av den nuvarande base calling-metoden eftersom att metoden är i ett tidigt utvecklingsskede. Vi har genomfört explorativ dataanalys för att undersöka förekomst av systematiska fel och korrigerat för dessa med hjälp av statistiska metoder. Vi har framförallt undersökt tre metoder för att korrigera för systematiska fel:I) Korrektion av överblödning som sker på grund avöverlappande emissionsspektra mellan fluorescenta prober.II) En sannolikhetsbaserad tolkningav intensitetsdata som resulterar i ett nytt kvalitetsmått och en alternativ klassificerare baseradpå övervakad inlärning.III) En utredning om förekomst av cykelberoende effekter, exempelvisofullständig dehybridisering av fluorescenta prober.Vi föreslår att man gör följande saker:Implementerar och utvärderar det sannolikhetsbaserade kvalitetsmåttetUtvecklar och implementerar den föreslagna klassificerarenGenomför ytterligare experiment för att påvisa eller bestrida förekomst av ofullständigdehybridisering.

In order to convince, one must know which arguments are most suitable for the specific situation. But even if you think you know how others will react to your arguments, you may be wrong. Therefore, the purpose of this paper is to find out a way of examining to what extent informative text take account to the subjective views of their addressees. The theoretical framework is Blitzer's theory of the rhetorical situation, pragmatic theory of speech acts and their presuppositions, Burk´s theory of consubstantiality and phenomenographic theory of subjective perceptions. Methodologically, phenomenography has also been used as a guideline for selecting informants, collecting data and Processing the interviews.

This master?s thesis concerns the performance of professional children?s theatre in public libraries. With qualitative interviews I have looked into how four children?s librarians and two theatre consultants appreciate professional children?s theatre, and furthermore I have looked into their view on the importance of theatre for children. My intentions have also been to investigate their views on the function and status of children?s theatre in public libraries and also the relationship between library and theatre activities for children.

The investigation analyzed the implementation and application of the Swedish National Archives' new Process-Oriented Archives Description Model to activities of the hierarchical, function-oriented and decentralized university organizations.The basic reason why a new archive description has evolved is because documents are becoming more and more digital. It requires a new interpretation of how evidence is secured for their reliability and authenticity, and a new way of looking at provenance, for the purpose of describing and searching electronic documents. The new archive description model's logical structure is based on business processes.The relationship between the new archive description and a function-oriented organization's activities can be seen from the different outlooks of processes between archive activities and activities of the organization. It is also reflected in the modification that all universities have made ??of the new archive description model to be more flexible and pragmatic to fit a function-oriented organization.The relationship between provenance and process-oriented archive description is mainly the link between documents and business processes that produce them.

With an increased demand for biomass based energy and with development of better technique harvest biomass, new possibilities open up. With the possibility to combine traditional cleaning of road?s right of way with biomass harvesting, the work of suppressing tree vegetation could become profitable or at least decrease the road maintenance cost. However, knowledge about productivity and profitability in mechanical biomass harvesting in roads? right of ways are still limited.

Glycerol is essential for the lipid metabolism of both plants and animals. Glycerol is formed in the rumen by hydrolysis of lipids from the feed. Glycerol is also a by-product from the production of biodiesel from rapeseed oil and other fat sources. Glycerol might be used as a dietary glucose precursor for dairy cows in similar ways as propylene glycol. Due to increased production of biodiesel more glycerol has been available to a lower price.

Background: Rheumatoid arthritis is a common disease worldwide. The disease is described as a chronic inflammation that afflicts mainly the joints, the tendrons and the synovial joint. The inflammation breaks down cartilage, ligaments and bone. When the patient gets the diagnosis he/she frequently reacts with chock, denial or/and dissociation. Active support from the nurse can have an important impact on the patient in accepting and Processing that he/she suffers from disease.

To make wave power more competitive on the market Uppsala University leads projects that examine how to accomplish better efficiency in the production. One of these projects is described in this report and examines whether it is possible to make the production of dovetails more efficient by using an industry robot of type ABB IRB6000 S3 M91. This project is using an already presented working method, from a previous project, which involves that the robot picks up the dovetail and moves against fixed cutting machines where the dovetail will be drilled, threaded and milled. Drilling and threading are the sub operations that will be examined in this project where experiments are made with the presented working method and with equipment from Uppsala University.Experiments show whether it is possible to drill the holes in the dovetail within specifications by using the specific robot and the presented working method. The threading operation is examined theoretically if it is possible to accomplish by using the same working method.

It has now passed two years since the new site- and construction law, PBL, went into force. It replaced the previous PBL applicable since 1987, and it involves relatively large changes in many different areas of the construction sector. The ambitions of the new law are for instance to simplify and clarify the legal text, increase efficiency in the permitting processes and improve the quality of construction. To achieve this, a variety of changes was made. Some of the most important are: inserted deadline in the Processing of building applications, extended assessment of building applications, revised rules about controlplan and quality manager, a certificate is required to start and end the project, an additional meeting is inserted and the construction management of the municipalities will have to do a mandatory visit at the work scene.

This essay addresses the subject social interaction in the social network named Facebook. The studied interaction took place between the Swedish clothing company H&M and the active visitors on the company page in the social network. The subject of social interaction in social media is an interesting field to study due to its vast range, the largely amount of people involved and it is of interest to see how the company and customers interact. The purpose of the essay was to study the interaction between the company and visitors. The statement of the problem is divided into four questions which is Processing a deeper analysis of how the company page is used.

Cochleaimplantat (CI) är en av de största medicinska innovationer som gjorts under de senaste 20 åren. Med hjälp av ett sådant kan barn med grav hörselnedsättning eller dövhet få möjlighet att höra och utveckla ett talat språk. Många barn med CI uppnår dock inte den förväntade språknivån. Orsakerna till detta är ännu inte fullt förstådda och vidare forskning är därför nödvändig. I föreliggande studie deltog 9 barn i åldrarna 6;7 ? 12;4 år med CI.

Information Technology (IT) makes it possible to electronically distribute data between actorswho are in geographically diverse areas. Nowadays, information is sent less frequently throughtraditional correspondence in favor of faster electronic equivalents via the internet.Despite effective IT environmentand secure encryption techniques choose some actors to sendinformation through physical delivery. This phenomenon occurs in those working withconfidential information as it is handled by a number of rules and safety regulations.Based on a set of rules and requirements, we have looked over the possibility of sending sensitiveinformation electronically over the internet. The aim was to find general guidelines for howcompanies and organizations should manage and send sensitive information over insecurenetworks. This led us to our research question: How can information be exchanged betweenactors in geographically diverse areas be categorized and encrypted so that it can be transportedover the internet without security or integrity deficiencies?To answer the question, there was a case study at a defense company.

The intention of this essay is to study the Swedish General Staff as a learning organisation during the period of 1914-1918 based on the theoretical work developed by the philosopher Bertil Rolf. Previous international research on the Prussian/German General Staff has shown that it is considered to be the first learning organisation in history. The Swedish General Staff was based on the German General Staff model and the focus of this study is to compare the development the tactics in Germany and Sweden regarding defence and attack in trench warfare. The questions are: How were the possibilities for gathering and analysing informa-tion affected by the war? Which conclusions were made for trench warfare in Swedish conditions? What experiences from the war and exercises in Swedish army were implemented in manuals and training?The conclusion of the study is that the Swedish General Staff was functioning as a learning organisation during the WWI through the ability to follow the international development, mainly in the Central Powers, and by modifying the experiences to the prevailing Swedish strategic and tactical conditions.