The aim of this study is to elucidate factors that effect growth of Sarcina lutea and Bacillus subtilis, exposed to the growth inhibitor SDS (Sodiumdodecylsulfat). Agar diffusion experiments revealed repeated, concentric zones of inhibition and stimulation upon exposure to Sodiumdodecylsulphate or to Amoxicillin. Temperature, nutrient concentration and inhibitor concentration were controlled. Formation of successively repeated zones of inhibition, stimulation, inhibition and stimulation is discussed: ? The extension of the primary inhibition zone is due to the concentration of applied Sodium dodecyl sulphate.? Immediately outside the primary inhibition zone the bacteria have access to diffusing nutrients that have not been consumed in the primary inhabitation zone.? In zones of dense bacterial growth the bacteria may produce inhibiting substances, affecting growth of bacteria in adjacent zones.? In zones of dense bacterial growth the nutrients will soon become depleted, thus affecting bacteria in adjacent zones..

This master's thesis is a study of how librarians are depicted in crime fiction. 12 American and English mysterynovels featuring librarians in a central role were studied and analysed using character theory. Recurring traitswere identified and organised into themes. A number of prominent traits and themes emerged that show librariansas orderly and organised bibliophiles, but with a taste for adventure and excitement. They are keen problem solverswho enjoy a challenge, at work, or in the form of crime detection.

Future emission legislation puts great emphasis on increasing the efficiency of the engine, thereby reducing fuel consumption. The tribological contact between cylinder liner and piston ring is where an great amount of energy is lost due to friction, and by reducing these losses an reduction in fuel consumption can be achieved.The aim of this thesis was to evaluate the tested piston ring coatings against a plasma sprayed cylinder liner and rank these combinations of materials for friction and wear resistance. The coatings that were tested was Cr + Al2O3, (Al,Cr)N, two types of CrN and WC / C.The experimental tests were performed with a so-called pin-plate, where used oil with addition of an acidic mixture of sulfuric and nitric acid to mimic the acidic condensate formed when exhausts recirculate, were added with a continuous flow. The results were then analyzed by weighing, studies by optical microscopy and scanning electron microscopy (SEM) and profile measurements.The results from each material combination were that the plasma coated cylinder liner wears too aggressively in order to yield a ranking of the piston ring coatings based on the parameters of friction and wear resistance. It is therefore proposed that an alternative coating on the cylinder liner should be developed, lacking the large abrasive wear on piston rings and that can withstand the corrosive environment resulting in engines equipped with EGR.

How do you summarize the content of a fictional work, let?s sayLord of the Rings, into a few "telling" words that may represent it? This master?s thesis is a comparative study of how library users? freely chosen tags/keywords deviate from controlled vocabulary made by professional indexers when representing fiction. The thesis answers four main questions:? Do the tags that the library users give fictional works correspond to the categories used in professional indexing in Sweden?? Do the tags follow the standards for vocabulary, semantics and syntax used when indexing professionally?? Do the tags add something to document representations?? Are there differences between the tags used for adult fiction and the tags used for children?s literature?With a starting point in indexing theories of Frederick W. Lancaster, Annelise Pejtersen, and the semiotic theory of the indexing process of Jens-Erik Mai, 383 tags from totally 70 fictional works are analyzed.

Future emission legislation puts great emphasis on increasing the efficiency of the engine, thereby reducing fuel consumption. The tribological contact between cylinder liner and piston ring is where an great amount of energy is lost due to friction, and by reducing these losses an reduction in fuel consumption can be achieved.The aim of this thesis was to evaluate the tested piston ring coatings against a plasma sprayed cylinder liner and rank these combinations of materials for friction and wear resistance. The coatings that were tested was Cr + Al2O3, (Al,Cr)N, two types of CrN and WC / C.The experimental tests were performed with a so-called pin-plate, where used oil with addition of an acidic mixture of sulfuric and nitric acid to mimic the acidic condensate formed when exhausts recirculate, were added with a continuous flow. The results were then analyzed by weighing, studies by optical microscopy and scanning electron microscopy (SEM) and profile measurements.The results from each material combination were that the plasma coated cylinder liner wears too aggressively in order to yield a ranking of the piston ring coatings based on the parameters of friction and wear resistance. It is therefore proposed that an alternative coating on the cylinder liner should be developed, lacking the large abrasive wear on piston rings and that can withstand the corrosive environment resulting in engines equipped with EGR.

The thermal response of a borehole field is often described by non?dimensional response factors called gfunctions.The g?function was firstly generated as a numerical solution based on SBM (Superposition BoreholeModel). An analytical approach, the FLS (Finite Line Source), is also accepted for generating the g?function. In thiswork the potential to numerically produce g?functions is studied for circular borehole fields using the commercialsoftware COMSOL.

I den försvarsdebatt som förts under 2013 och 2014 har det förekommit tydliga skillnader mellan den politiska och den militära nivån avseende syn på hur Försvarsmakten och de svenska luftstridskrafterna ska utvecklas.Varför finns det då denna skillnad? Eftersom det är en nu pågående process är det svårt att finna svaren då slutresultatet saknas. Istället söker denna uppsats förklaringen genom att jämföra skillnader och likheter i synsätt på luftstridskrafternas utveckling mellan den mili-tära och den politiska ledningen mellan 1948 och 1958, vilket omfattar en hel försvarsbe-slutsperiod. Analysen genomförs genom ett verktyg baserat på John Wardens 5-rings modell, applicerat på de svenska luftstridskrafterna, i syfte att identifiera mätbara variabler som se-dan jämförs utifrån den militära respektive den politiska synen.Undersökningen påvisar såväl skillnader som likheter i synsättet där skillnaderna i huvud-sak omfattar de stödjande delarna som till exempel infrastruktur som inte direkt ger militär effekt i duellsituationen vid ett militärt angrepp.Förklaringen till skillnader och likheter finns sannolikt i den maktkamp som enligt teorin na-turligt uppstår i en byråkratisk organisation som samtidigt ska vägas av mot den inre och den yttre strategin i det här fallet svensk säkerhetspolitik..

Kalvningsförlamning är en av de vanligaste sjukdomarna hos mjölkkor och orsakas av ett metaboliskt tillstånd hos kon som kallas klinisk hypokalcemi. När laktationen startar vid kalvning transporteras stora mängder kalcium till juvret och kalciumkoncentrationen sjunker drastiskt i blodet. Om kon inte kan kompensera för kalciumsänkningen kan inte nervsystemet och musklerna fungera som de ska vilket gör att kon blir förlamad och oförmögen till att resa sig upp. På grund av att det är en sjukdom med allvarliga symptom och som kan leda till stora ekonomiska konsekvenser för producenten är det viktigt att kunna förebygga sjukdomen. Syf-tet med det här arbetet är därför att ta reda på vad som orsakar kalvningsförlamning samt hur tillståndet kan förebyggas hos kon och vilka metoder som är vanligast.

Sjukvårdsrådgivningen via telefon är väl förankrat hos Sveriges befolkning då det varje år rings många samtal dit. Avsaknaden av visuell kontakt och den begränsade tillgången till problemet gör att triage och rådgivning försvåras. Telefonsjuksköterskan kan inte ta del av den icke verbala kommunikationen såsom exempelvis ansiktsuttryck, kroppshållning eller sjukdomstecken på kroppen. Syftet med denna litteraturstudie var att belysa faktorer som har betydelse för telefonsjuksköterskans triage och rådgivning i kontakt med den vårdsökande. I litteraturstudien som grund för resultatet har metoden varit att granska fjorton artiklar med kvalitativ ansats ur ett sjuksköterskeperspektiv.

During the period called Little Ice Age (1400 ~ 1900) the climate of northern Europe was in an annual year-basis overall colder than it was before and after that period. The numbers of short, cold and rainy summers and long, bitter-cold winters where often repetitive under the approximately 500-years the period lasted. In Scandinavia, the coldest time during this period is estimated to have started around the end of the 16th century and lasted to the beginning of the 18th century. Trees growing at the tree-line are limited by temperature for their annual growth and hence showing differences of growth during changes in the climate,  a method called dendroclimatology. The variations of growth can be read in the tree-rings either by analyze the width of the ring or by look into the density of the wood and is used to reconstruct past climates.

The thesis evaluates a new kind of bearing arrangement in a traction motor that ABB hasdeveloped. Since the arrangement is designed in a new and innovative way it needs to beevaluated to see if it is safe to use. In today?s traction motors, bearings with a big internalclearance (C4-clearance) are used. The basic idea of the new arrangement is to reduce the fitsbetween the bearing and shaft/house.

Sjukvårdsrådgivningen via telefon är väl förankrat hos Sveriges befolkning då det varje år rings många samtal dit. Avsaknaden av visuell kontakt och den begränsade tillgången till problemet gör att triage och rådgivning försvåras. Telefonsjuksköterskan kan inte ta del av den icke verbala kommunikationen såsom exempelvis ansiktsuttryck, kroppshållning eller sjukdomstecken på kroppen. Syftet med denna litteraturstudie var att belysa faktorer som har betydelse för telefonsjuksköterskans triage och rådgivning i kontakt med den vårdsökande. I litteraturstudien som grund för resultatet har metoden varit att granska fjorton artiklar med kvalitativ ansats ur ett sjuksköterskeperspektiv.

Intresset av ekologisk kost och yrket som barnsko?tare har motiverat oss att skriva om ekologisk mat ur ett ha?lsopedagogiskt perspektiv med fokus pa? fo?rskolan. Med hja?lp av intervjuer synliggjordes tre yrkesgruppers tankar och kunskaper. Syftet med examensarbetet a?r att underso?ka ekologisk mat pa? fo?rskolorna ur ett ha?lsopedagogiskt, na?rings- och ekonomiskt perspektiv.

Our employer Camatec Industriteknik AB gave us the assignments to increase theirs range of versions on Camcoil that is their own patent product. Camcoil is a capstan system that is used when steel band fabricated. Exist for example in production lines their steel band should be annealed. Our goal with this work is to come up with a completed production basis on a Camcoil for heavy industry. The basis should contain calculations, 3D-constructions, drawings and cost proposal on manufacturing and detail purchase.Demands on this project:1.

When Norway spruce is planted with large initial spacing and grows on highly productive sites in southern Sweden, a high proportion of the stems gets broad annual rings. The thinning programme carried out at the estate of Trolleholm aims to extract stems with too broad ring width. The 3-4 first thinnings are carried out as thinning from above, where only the thickest trees are removed. The internal distance may not fall below 5-7 meters depending on the number of thinning (short distance in young stands). The aim of this study was to examine the thinning model that is carried out at the estate of Trolleholm. A volume table is calculated to describe the model, and data is collected on temporary plots.