Under de senaste årtiondena har det pågått en förtätning och en alltmer ökad utbyggnad av världens städer. Som en följd av detta har stadens naturliga vatten- och värmebalans rubbats. På bekostnad av vegetativa ytor har artificiella byggmaterial introducerats som absorberar värme från solens strålar och höjer stadens temperaturer. Dessa material leder även snabbt bort regnvatten samt hindrar vatten att infiltreras ner i marken. Temperaturskillnader på 12oC jämfört med den omkringliggande landsbygden har kunnat uppmätas i stora amerikanska städer. Detta fenomen har kommit att kallas Stadens Värmeö eller Urban Heat Island som är den engelska termen. I Sverige förväntas det bli allt högre sommartemperaturer och fler rekordvarma dagar framöver.

Att leva i flock har flera fördelar, men trots detta är lejon det enda flocklevande kattdjuret. Flocken består av en grupp besläktade honor och deras ungar som domineras av en grupp hanar. Individerna är ofta utspridda i reviret i mindre grupper. I den här studien har jag undersökt om det finns någon optimal gruppstorlek och hur den i sådana fall ser ut, både ur reproduktions- och jaktsynpunkt. I litteraturen jag har läst är det flera olika faktorer som anses vara viktiga och som påverkar antalet gruppmedlemmar, vilka beskrivs och diskuteras här i arbetet. Emigrering är en viktig del för att förhindra inavel och både honor och hanar undviker parningar med nära släktingar. Till skillnad från honorna lämnar alla hanar alltid sin födelseflock då de har fler fördelar av det eftersom deras reproduktionsframgång begränsas av antalet honor de parar sig med.

This thesis investigates if a system for small scale electricity production located in anurban environment can be profitable. The work has been divided up into two parts,one extensive literature study and one case study. The purpose of the literature studywas to investigate the area, resulting in a choice of which technology to be studied indepth in a case study.In the case study a system containing small scale wind turbines and photovoltaicsmounted on Gränby Centrums roof was examined. From data containing wind power,wind direction and total irradiation, possible production from a system weresimulated. Three products of each technology were examined in the simulations.From the simulated production an economic analysis was carried out, this toinvestigate if a system is profitable.

Inom kognitionsforskningen kring individers förmåga att skatta vardagliga fenomen har det uppstått två läger. Ett hävdar att människor gör optimala skattningar och ett läger hävdar att så inte är fallet. I artikeln ?Optimal predictions in everyday cognition? (2006) fastslår Griffiths och Tenenbaum utifrån grafisk analys att människor är bra på att göra betingade skattningar av vardagliga fenomens längd eller mängd. Författarna argumenterar för att människor har kunskap om fenomenens fördelningar och att denna kunskap ligger till grund för skattningarna.

The idea to create authentic learning situations where students are highly integrated made me want to try to develop a new method in the course Restaurant and Catering B MAKU 1208 (another field practicing cuisine). In my quest to do just the practical part as rewarding, stimulating and efficient as possible for the student, I planned for a training model with   focus on group interaction.The implementation of the model for learning was to strengthen students confidence both in themselves and in each other, stimulated to greater cooperation and it has also provided an incentive to the student's own development but not least, a growing self-confidence for many students. Several have also had an increased sense of knowing something, to have something to contribute and that their labour input actually was needed. While highlighting that further education to seek knowledge strengthens the individual's skills and consolidates and increases deeper knowledge in the professional field.In conclusion, training should be done in both individual and group basis for optimal learning process..

With rising energy prices and the threat of climate change, energy costs and energy savings havebecome a central and important part in building. Therefore it is interesting to explore different andnon-conventional methods of energy conservation. Building Earth sheltered houses is such a method.Earth provides good insulation and provides the ability to both reduce the total heating needs and toreduce the maximum power demand. The aim of this study was to construct a house in Malmö and seeif Earth sheltered houses can be a cost effective alternative for the construction of sustainable andenergy-efficient houses.Previous studies have shown that Earth sheltered houses have reduced their power requirement with upto 25% and their use of energy with 10%. Numerical calculations in Comsol Multiphysic 4.2, wasperformed on a house with different degrees of earth covering.

Tillståndsbaserat underhåll är en gren under kategorin förebyggande underhåll. Denna typ avunderhåll går ut på att undersöka och analysera tillståndsvariabler i ett system för att kunnabestämma systemtillståndet. Beroende på systemtillstånd kan sedan förebyggande elleravhjälpandeunderhåll planeras. Idag finns det ca 300 frånskiljande brytare installerade i detsvenska stamnätet. Svenska kraftnät planerar att införa tillståndsövervakning i form avtillståndskontroller på dessa brytare.

The purpose of the thesis is to increase the knowledge of the deregulation of the mobile telecom market in Sweden, with focus on the time after the Electronic Communications Act (EkomL), by: (1) Describing the thought behind the Electronic Communications Act. (2) Assess how the National Post and Telecom Agency (PTS) has acted. (3) Assess how the operators have reacted. (4) Investigate the regulation?s effects upon competition.

Preventive measurements as well as clinical caries diagnostics are vital to retain a good dental health in the population. In order for optimal caries diagnostics radiographs are used. There is a great intra- and intervariation regarding cariesprogression. A large number of tools for cariesprevention at home or in the clinic are today used. The aim of this journal study was to compare the progression of carieslesions in the approximal area, diagnosed on radiographs, and preventive measures used to reduce cariesprogression between two examine dates on two dental clinics.

Legionellabakterien orsakar den så kallade legionärssjukan vilken är en form av lunginflammation med hög dödlighet. Bakterien lever i färskvatten och finns naturligt i våra sjöar och vattendrag. Enligt Smittskyddsinstitutet trivs Legionellabakterien i temperaturintervallet 20°C till 42°C med en optimal tillväxt vid 35°C, bakterien lever dock redan från 0°C. Vi har i denna undersökning försökt utreda om legionella kan vara en risk ombord i fartyg. Eftersom tester för förekomsten av legionellabakterier inte ingår i de krav som ställs på dricksvattenkvaliteten ombord, har vi kontaktat fem rederier för att fråga om de har utfört några utökade tester där legionella ingår.

The aim of this research paper was to examine the help required by refugee children with post-traumatic stress disorder (PTSD). In addition to this, we also examined the help the refugee children are currently receiving. We have examined this from the perspective of the theory of the ecology of human development. The method we used was qualitative and we conducted eleven profound interviews with professionals working with the target group in question. The essential questions were; which needs, according to the professionals, do refugee children with PTSD have, what characterises the professional's work to help the children and what possibilities and obstacles there are in giving the children optimal help.The results strongly conclude that it is important for the children's development to have at least one supportive adult in their surrounding, a positive experience at school and during leisure activities.

The formulation of visions into practical projects is an important part of the professional expertise of landscape architects. This expertise includes the gathering, structuring, improvement and utilization of knowledge. Project models have been developed to provide tools for the implementation and governance of projects, as well as means of learning, reflection and survey of individual projects. The aim of this thesis is to describe some general project models and their theory, and to describe practical, real-life examples of project models used within landscape architecture. Questions asked are: ? How do the processes of idea to construction in landscape architectural projects lool like? Do project models have a relevance for the mission of landscape architects? ? Is a common project model used within such projects, or is the project model varying depending on e.g.

Bakgrund: Patienter som ska genomgå elektiva operationer kan uppleva preoperativ oro och ångest. Preoperativ oro kan grundas i bristande information, tanken på att mista kontrollen samt vistelse i okänd miljö. Det vilar ett stort ansvar på sjuksköterskan då hon ska möjliggöra optimal delaktighet i vård och behandling för patienten samt uppmärksamma patienter som inte själva uttrycker ett omvårdnadsbehov. Syfte: Att sammanställa kunskap om vilka omvårdnadsåtgärder som kan minska patienters preoperativa oro vid elektiva operationer. Metod: Litteraturstudie, baserad på två kvalitativa och åtta kvantitativa artiklar.

The objective of this work was to evaluate and implement a number of energy saving functions for a specific embedded system. The functions were then grouped into a number of energy levels with known properties in terms of functionality, energy consumption, and transition time between the levels.The embedded system consisted of an AT91 ARM9 processor, GSM/GPRS modem, display, Ethernet and other peripheral units. Some energy saving methods that were considered were suspend to RAM, suspend to disk, frequency scaling, and methods for saving energy in the modem, Ethernet, USB and display backlight. The functions were grouped into levels and an interface was specified for controlling the energy level.It proved possible to get known properties within the defined energy levels, even though the paritioning of functions into these levels proved to be sub-optimal in a typical application usage scenario because it was designed for mainly energy consumption, not usage.The final result is a number of energy saving functions grouped into levels, which are controllable via an application interface. Each of the levels have a known energy consumption in both loaded and un-loaded mode..

The aim with the study is to find key factors relating to internal marketing and to improve the process between the operating organization and its customers. A qualitative study is carried out within an organization active in the Swedish healthcare. The qualitative approach is carried out by collecting empirical data through observations, personal interviews and group interviews.The Physiotherapy Clinic at the Karolinska University Hospital is in the focus of the empirical study. The study locates existing differences in perceptions and comes up with recommendations for actions to improve the process of organisations within the Swedish healthcare and their customers. The study's results are that internal marketing can bring a lot to service-selling organizations and that the organizations internal conditions are as important as the external ones.Communication appears to be a key factor for an organization that has applied internal marketing.