The work covered in this report includes a literature study of the diesel dual fuel technology(hereinafter referred to as DDF). The literature study covers earlier work that has been doneregarding the use of compressed natural gas (CNG) and diesel in a DDF system. Moreover a onecylinder research diesel engine was fitted with a CNG fuel system for experimental testing. Theinstallation of the engine and the test cell is described. Results from the tests are presentedcovering emissions, heat release and pressure traces from the DDF-concept.During the literature study it was found that most research was related to heavy duty dieselengines.

The search for antibiotic compounds from the natural environment has been going on for seven decades, ever since penicillin entered the market and antibiotic treatments became routine. The evolutionary pressure put on the pathogenic microorganisms induced a rapid spreading of naturally occurring resistance genes, leaving only the option of finding new antibiotics to treat the resistant pathogens. Microorganisms have been extensively mined for their biosynthetic abilities to produce biologically active compounds. To date, more than 23 000 microbial natural products have been discovered. The Actinomycetales are ubiquitous bacteria that have been used for antibiotic discovery for more than half a century, and over 10 000 natural products have been identified from the order.

Många faktorer påverkar den orala hälsan, däribland kosten. Idag finns många olika kosttyper samt livsstilar, och något som ökar i Sverige är den vegetariska kosthållningen. Syftet med denna litteraturstudie är därför att kartlägga vilken inverkan vegetarisk kost har på den orala hälsan. Artiklarna som användes i denna litteraturstudie hämtades från databasen PubMed, och studiernas referenslistor granskades kritiskt. Det upptäcktes också artiklar genom referenslistgranskningen.

This study is about the use of textbooks in teaching English as a second language and about teachers? attitudes and opinions of using textbooks during lessons. The aim of the study is to receive a deeper understanding of the use of textbooks in English teaching and to learn about why teachers choose whether to use the textbook approach or not. The study contains an analysis of the textbooks the teachers in our study used. The analysis shows the actual content and the types of texts together with the design and the structure of the textbooks.

Begreppet ekosystemtjänster kan användas för att tydliggöra värdet av landskapets funktioner och därmed underlätta kommunikation mellan markanvändare då olika intressen konkurrerar. Emellertid finns det få studier som inkluderar en kvantitativ eller kvalitativ värdering av ekosystemtjänster på landskapsnivå. I detta arbete har markanvändning och ekosystemtjänster studerats i ett landskapsperspektiv, med Vilhelmina Model Forest (VMF) som studieområde. Den övergripande frågan i VMF är hur rennäring kan kombineras med andra markanvändningsintressen, huvudsakligen skogsbruk. Syftet med studien var att göra en kvantitativ värdering av markanvändningsintressen och ekosystemtjänster.

According to The National Board of Health and Welfare, about 200 000 elderly persons get some help or support with eating or nutrition problems. This was approximately 2 percent of the population. Older people in sheltered accommodation in community care were not able to manage their own nutrition. The older people were dependent on the food that was offered to them, when and how the food was served. This was a specific responsibility for the nursing staff.

Över hela världen anses huvudlusen (Pediculus humanus capitis) vara den vanligaste ektoparasiten hos människa. I Sverige säljs det ca 100 000 förpackningar med avlusningsmedel varje år, så problemet är uppenbart. Resistensutveckling hos huvudlöss tros vara en viktig orsak till ökningen av dessa parasiter. I maj 2010 kom Läkemedelsverket ut med nya behandlingsrekommendationer där medicintekniska produkter är förstahandsval. Malation respektive permetrin ligger på en tredje respektive fjärdeplats i denna rekommendation.

ABSTRACTBackground: In all cancer therapies occurs more or less side effects, there one of them are mucositis. Symptoms of mucositis include wound and blister in the oral mucosa and affects 50-80% of children undergoing cancer treatment. Today there is no Swedish tested assessment scale for mucositis.Aim: To describe how teenagers with cancer and parents of children younger than 12 years with cancer perceive issues in a mouth-assessment instruments, Children?s International Mucositis Evaluation Scale (ChIMES), that have recently been translated into Swedish.Method/Design: The study was a quantitative descriptive research design. The participants were teenagers with cancer 12- 18 years (N=15), and parents (N=15) of children younger than 12 years.

AbstractHow do we remember? What do we remember? How does the memory change over time? These are the main questions in this essay.Five persons, who have lived or are still living in the old parish Rystad, situated seven kilometers from the town Linkoping south of Lake Roxen, have participated in interviews. They have been given the possibility to present their oral history which has been recorded and later transmitted to texture. The participants represent different social backgrounds and professions and they were born between the years 1920 ? 1936.

Today, there are no regulations saying that cows must have access to some kind of shelter at pasture during the summer. In more tropical countries, it is well-known that dairy cows might suffer from heat stress when exposed to sun and high temperatures. The well-being of the cows is thereby reduced and the production may also decrease. In Sweden, no research has been done in the area and therefore it is now a clear need of improved knowledge.The purpose of this study was to investigate the importance of shade for dairy cows in Sweden. The behaviour of 30 cows was examined to see any differences between cows with access to shade and cows without access to shade.

Internet commerce is nowadays a well known phenomenon. There is awareness that a lot of newly created companies operate their business through the Internet. You can see a tendency where many young people try to establish an Internet business with the hope of success and expansion on today?s fierce market rivalry. To achieve success, companies have to consider factors like business concept, logistic knowledge, future vision, resources and contacts when initializing their business.Having this in mind, we can clarify the purpose with this paper: ?To analyze in what way On-line shopping companies that sell consumer electronics, cell phones and music/entertainment products, have expanded? The paper is based on telephone interviews with three On-line shopping companies.

Parodontit är en kronisk inflammatorisk sjukdom, som orsakas av patogena bakterier som fäster på tändernas ytor, där de bildar plack. Sjukdomen kan förebyggas genom god munhygien. Syftet med studien var att beskriva och jämföra parodontit relateradkunskap och dess relation till munhygiensvanor hos patienter före och 1-år efter icke kirurgisk parodontal behandling utförd av tandhygienist samt jämföra om det föreligger någon skillnad i kunskap efter behandling mellan två olika munhälsoundervisningsprogram. Ett ytterligare syfte var att beskriva om det föreligger någon skillnad i kunskap om parodontit med avseende på ålder, kön och utbildningsnivå. Studien var en beskrivande, jämförande studie med kvantitativ ansats och en del av en experimentell tvågruppsstudie.Urvalet bestod av 113 individer, 60 kvinnor och 53 män, i åldern 20-65 år som var remitteras till en specialistklinik i parodontologi.

SammanfattningAtt köra en elbil kan skilja sig från ett traditionellt fordon på flera sätt. Förväntningarna från förarenmåste tas i beaktning när användargränssnittet i bilens instrumentpanel utformas.Denna masteruppsats behandlar test, utvärdering och nydesign av Huvudinstrumentet i Saabs elbilZero Emission. Huvudinstrumentet är den del av instrumentpanelen som sitter framför ratten ochinnehåller mätartavlor och andra instrument. Andra områden såsom mittkonsolen och musik- ochnavigatorsystem inkluderas inte i studien.Huvudinstrumentet testades och utvärderades med metoder, bland andra heuristisk utvärdering,Cognitive walkthrough och användartest. Användartesten utfördes i en körsimulator med hjälp avtänk-högt-metoden för att möjliggöra för observatören att följa med i testpersonen tankebanor.Med hjälp av resultaten från testutvärderingen skapades en ny design av huvudinstrumentet.Övergripande upplägg och design av individuella delar av klustret utformades parallellt.

Department of Education, University of Stockholm. Second year research project, autumn term 2009. The transformation of Swedish officer´s training into an academic professional education ? a study of professional identity in alteration. The study is a part of the Research Project; Discussion for collaboration - from vocational training to academic professional education.By Michael LarmThe purpose of this study is to analyse in what way the process of transforming Swedish officer´s training into an academic professional education are perceived in terms of professional identity, alteration and synergies.

A large part of the Namibian low income population lack access to grid distributed electricity. This mean they are effectively shut out from basic functions such as lighting, information technologies and hygienic food handling. Hence, finding ways of providing affordable off-grid electricity is an important, not to say critical, task.This master thesis is an innovation and concept development project that has been carried out in cooperation with organisations in Sweden and Namibia. The purpose of the project has been to (1) develop a concept for off-grid electricity supply in Namibia and (2) to gain a deeper knowledge within the area of innovation and product development for the Base of the Pyramid population, i.e. the poorest, but largest, socio-economic part of the global population.Essential in this project has been to acquire user understanding and to identify user needs to create a foundation for developing the concept.