To be able to evaluate different radio waveforms in a laboratory environment FOI in Linköping has developed an experimental system for radio communication called Rasmus. The system consists of a transmitter, a channel emulator and a receiver. The transmitter modulates a digital signal to a desired analogue waveform. The channel emulator is used to simulate a real radio channel. The channel emulator distorts the signal by splitting it up in several propagation paths.

This bachelor thesis is about an ultrasonic sensor, implemented in a bubble chamber in Artis. The sensor consists of the piezoelectric sensor and an electronic control circuit. The control circuit consists of a programmable microprocessor, PIC18F2420 and a circuit, which sends the excitation signal to the piezoelectric sensor, and later receives the echo. This bachelor thesis consists also of a theoretical study, which examines different techniques of liquid level sensing in a chamber. The study discusses which factors are important in liquid level sensing and examine accepted methods.

The focus of this work is to study whether public libraries should offer their patrons unlimited access to the Internet, or restrict which sites they can visit. The most common tool used to limit Internet access is filtering software. The author has administered four interviews with public librarians working in libraries in Southern Sweden. All four librarians had different opinions about restricting Internet access. The most important question asked was if they had chosen to use filtering, and the reasons for their decision.

Phosphorus is essential to all plants and is taken up from the soil as the ion H2PO4 - (and to some extent HPO42-). Plant availability depends on, among other factors, the soil pH. In order to provide for plant available phosphorus, it is applied as mineral fertilizers and farmyard manure. However, that causes phosphorus leaching from arable land to surrounding surface waters and lakes and contributes to the eutrofication. There are three types of soils in Sweden that are at higher risk of contributing to phosphorus leakage.

Internet har prisats som en frizon för fritt meningsutbyte och informationstillgång, revolutionerande och oantastligt. Internet kan dock censureras, och detta sker dessutom idag. Därmed bestämde jag mig för att undersöka hur den utförs, hur den kan tänkas förhålla sig till yttrandefriheten samt vilken skada censuren kan tänkas innebära för den. För att först avgöra vad som menas med yttrandefrihet och vari dess värde ligger går jag igenom fem starka argument för yttrandefrihet i demokratiska stater, Mills sanningsargument, Meiklejohns demokratiargument, Bollingers toleransargument samt Scanlons två autonomiargument för att därefter komma in på arbetes huvudteori, Ulf Petäjäs pålitliga kommunikationsprocess. Den säger, i korthet, att yttrandefrihetens värde för demokratin ligger i att den möjliggör en pålitlig kommunikationsprocess som erbjuder folk den varierade information de behöver för att kunna få demokrati att fungera.

Background:Studies show that when nurses are experiencing problems in the care of non-Swedish speaking patients, it is often due to obstacles in the communication. Studies also show that a prerequisite for adequate care is that there is a basis for a direct communication. Nurses perceive interpreters as an important link to the patient when they do not share a mutual language, the nurses perceive interpreters as a bridge in the conversation.Aim:The purpose of the study is to describe nurses' experiences of the quality of assessments done with the help of an interpreter.Method:The study was conducted through interviews with ten nurses, working at psychiatric clinics. Qualitative content analysis was used for the analysis, which resulted in five categories.Results:The analysis resulted in one theme: "it´s the interpreter who tells me and have not the feeling that the patient has" and five categories: "shades of the language", "conversation structure", "the interpreter's competence", "interpreting implementing" and "the interpreter's gender and origin". The nurses experience working with interpreters as a challenge.

The analysis of acute phase protein serum amyloid A (SAA) has recently been brought into clinical use in veterinary medicine. Some of the difficulties with incorporating the SAA method in clinical practice have been the expensive and rather large equipment required for the method. Due to these difficulties only larger clinics can afford to use the SAA analysis.The company Equinostic has recently developed a smaller instrument that costs one-tenth of a larger instrument. The instrument is named EVA1 and has so far only been used to analyze SAA in horses.The aim of this study was to investigate if the EVA1 instrument could be used to analyze SAA in cats. This study included 24 serum samples from cat, which were first analyzed twice on the EVA1 instrument and then sent to the Strömsholm Referral Animal Hospital in Sweden where they reanalyzed the samples using a validated reference method.

Studies show that the performance of Swedish students in the subject of mathematics is to be considered somewhat average. The government has therefore decided to assist with extended project funding to schools on a local level in order to improve these results.Schools will, unlike before, practice teaching suited for the individual needs of students based on their previous experiences, knowledge level, language comprehension and their environment. This is also clearly stated in the Swedish school curriculum.My survey shows how three teachers in primary school actually work towards individualized teaching of mathematics and what methods they prefer. This survey also answered what these teachers considered to be the obstacles and opportunities with individualized teaching methods. The difference in approach of how to practice this has also been documented.The survey, based on interviews and class observations, have been analyzed and compared to previous research and theories in the field of teaching practices.

The main purpose with the project has been to approximate the magnitude of the pollution transport from the actual road surfaces and to get an approximation of the possibility to collect the pollutants to reduce the load to the water and improve the water quality.The quantity of pollution transport from the most trafficated roads areas in Örebro city has been calculated. Roads whith a traffic exceeding 10 000 vehicle/day. The study has been done with the calculation tool StormTac. Through analysis of traffic loads and road surface, which together with a different kinds of parameters gives an approximation of the pollutant transport.The calculation has included some metals and other substances in the stormwater and has also included the present of suspended solids. Included the overall study, some smaller areas has also been calculated for the possibility to remove pollutants.The work also includes calculation for three different areas for stormwater treatment.

This study uses qualitative research consisting of six semi-structural interviews of treatment workers who, in various capacities, have worked with men who use violence against their female partners. The purpose has been to show what the treatment counselor understand to be the reasons behind the men?s violence, what kind of backgrounds and problems they believe these abusers have and, lastly, how they view the male abusers as clients. The empirical data was analyzed through four perspectives and explanatory models derived from the past thirty years of Scandinavian research on the reasons behind men?s violence against women.

Syfte: Syftet med denna studie var att jämföra Multilens Bilux Iris-glas mot deras vanliga polariserade filterglas på syncentralspatienter med uttalade bländningsbesvär.Metod: I studien undersöktes 15 personer mellan 42-89 år. Försökspersonerna som hade bokad tid hos Syncentralen i Kalmar fick valet att ställa upp på en studie där de skulle få testa ytterligare ett filterglas. Patienterna återkallades efter ett par veckor då synskärpetester gjordes i hög och lågkontrast med och utan bländningsbelysning. Undersökningen innefattade även en intervju under vilken patienten fick berätta vad han/hon tyckte om respektive glas.Resultat: Kontrast påverkade visus. Högkontrast visus påverkades inte nämnvärt med olika filterglasen eller bländning.

A common assumption in marketing is the wider variety of product a corporation has, the better for the consumer: more product - more choices. Companies often develop a line extension to broaden consumer range through product attributes including quality, function and design. These developed attributes within the product are not always optimal for the consumer. As a result, companies often become entangled in having a price higher than the cost and benefit of the products. This essay aims to analyze the consumer value of line extension products and how these evaluations relate to extended line product pricing.

Pulvermetallurgi är en tillverkningsteknik för en stor mängd maskinkomponenter såsom kugghjul, lager och filter. Tillverkningen sker genom sammanpressning och upphettning, eller sintring, av ett fint metallpulver för att på så sätt direkt skapa komponenter med önskad form, istället för att behöva skära bort delar av detaljen för att det ska erhålla den önskade formen. Detta är särskilt fördelaktigt vid kugghjulstillverkning, på grund av deras komplexa former. Tekniken är även ekonomiskt fördelaktig eftersom den knappt producerar något spillmaterial alls i jämförelse med alternativa tillverkningstekniker. Syftet med denna studie var att undersöka huruvida pulvermetallurgi är lämplig som tillverkningsmetod för kugghjul som ska användas i lastbilars växellådor, en applikation som kännetecknas av väldigt höga belastningar och driftsäkerhetskrav.

The prime aim of this thesis was to investigate whether high or low iodine intake during certain periods of life was, or was not a strong risk factor for the development of canine lymphocytic thyroiditis (CLT). And secondly, if a high or low selenium intake in a combination with high or low iodine intake also may have an influence on that risk factor. To investigate this, a dietary questionnaire was sent out to dog owners. The dogs were selected from an ongoing genetic study of CLT. The questions investigated brand and type of feed during different life stages (puppy, junior and adult) and also if there were any use of dietary supplements.

The aim of this master?s thesis is to study librarians? views on children and young people as Internet users in Swedish libraries. It examines what types of problems and possibilities the librarians see with children?s and young people?s use of the Internet, how these problems might be solved, and what they think about regulations and filters. Qualitative interviews were conducted with nine librarians, and their statements were analysed with David Buckingham?s After the death of childhood as a theoretical foundation.