In recent years it has become more and more evident that man has contributed to much of the climate changes that have taken place during the last century. A major challenge today is to reduce emissions and energy usage at the same time as the global population is growing. To contribute to a better environment, Stockholms Stad has set at target of becoming fossil fuel free by the year of 2050. The construction of new districts is done with this goal in mind; energy efficiency and renewable energy sources are examples of methods to achieve this.Solar energy is considered to be a sustainable energy source and the most common techniques to harvest solar energy in Sweden are solar cells and solar collectors which produce electricity and heat respectively. This report aims to investigate whether an investment in any of these systems would prove to be economically beneficial at Kvarnholmen, a district under construction in eastern Nacka, Stockholm.Since the finished blueprints only cover a small portion of Kvarnholmen, the report examines the possibilities for a house where construction has already begun, Nya Kvarnen.

Today bonuscards are used widely to encourage customers to return for more purchases. Many of those bonuscards are today made of paper which is negative for the environment and since they are not very valuable they are also easy to misplace. The mobile version of these cards most often needs an active download and/or other processes before use and are therefore not so easy to use spontaneous. This project aims to make it easier to handle these bonuscards with today?s smartphones and solve the given problems.

Detta är ett examensarbete utfört på Institutionen för teknik och naturvetenskap (ITN) i Norrköping som är en del av Linköpings Universitet i samarbete med Peab som intressent.Historiskt sett har byggbranschens intresse för logistik varit svalt vilket har lett till att logistiken inom denna bransch har halkat efter i förhållande till övriga branscher. Syftet med detta examensarbete är att utifrån ett logistiskt synsätt tillhandahålla anpassningsförslag till SCOR-processerna ?Make? och ?Return? så att dessa stämmer bättre överens med byggbranschen i allmänhet samt finna förbättringsförslag kopplade till byggprocessen och returflöden av material hos Peab utifrån ett logistiskt hänsynstagande.För att kunna göra detta kommer examensarbetet avhandla hur byggbranschen passar in i SCOR-modellen i dagsläget med avseende på Make och Return. Därefter kommer exjobbet att komma med olika anpassningsförslag som framkommit längs med arbetets gång. Ett sådant förslag är att införa en nivå 4 i SCOR för Produce and Test (sM3.4) som ska gå in lite djupare i detalj på hur de olika byggnationsmomenten går till och vad som ingår i dessa.

Yahtzee is a popular dice game around the world. The complexity makes the game interesting to play and analyze. This report compares the effectiveness of the mathematically optimal strategy with a strategy that can be used for casual play. The rules used are those of the Nordic variant Yatzy, in which a few but important rules are different from the American Yahtzee. To evaluate the everyday strategy 100,000 games was simulated in a java program written specifically for this purpose.

Tail-biting in pigs is an animal welfare issue and in Sweden during 2002 the producers lost tree million Swedish crowns because of tail biting. This economic loss depends on the pigs which are discarded at slaughter because of tail biting. Tail biting can be separated into two stages, "pre-injury" and "injury". The aim of this study is to investigate if tail biting depends on environment or genetic background.A lot of research on the environments effects on the behaviour of pigs but not so much on the genetic effects has been performed. The frequency of tail biting in pig farms influence among others of environment enrichment, ventilation, gender and breed of the pig.

In Automatic Milking Systems (AMS), cows are kept in a free stall barn equipped with one or several milking units (MU). The cows? activities in the system are called cow traffic. There are three types of cow traffic systems: guided, partly-guided and free. Free systems have no gates, allowing the cows access to the feeding and resting areas at any time.

Healthy calves are the foundation in order to run a profitable diary production. Being healthy as calf results in a better start in life and good growth is expected to follow. Within dairy production it becomes more common to rear calves in groups and feed them by an automatic milk feeder. The milk feeder enables for the calves in greater extent to ingest milk or milk replacer several times per day and they are also able to perform natural behaviors in greater extent. Group rearing of calves puts higher demands on the animal keepers to localize individual calves in the group pen, showing signs of illness.

Tail-biting in pigs is an animal welfare issue and in Sweden during 2002 the producers lost tree million Swedish crowns because of tail biting. This economic loss depends on the pigs which are discarded at slaughter because of tail biting. Tail biting can be separated into two stages, "pre-injury" and "injury". The aim of this study is to investigate if tail biting depends on environment or genetic background.A lot of research on the environments effects on the behaviour of pigs but not so much on the genetic effects has been performed. The frequency of tail biting in pig farms influence among others of environment enrichment, ventilation, gender and breed of the pig.

At the end of April 1986 reactor number 4 of the nuclear power plant at Chernobyl explod-ed and large amounts of radioactive particles were then released into the atmosphere due to both the explosion as well as the consecutive fire of the graphite core. A cloud of radioac-tivity was spread over the northern hemisphere, including Sweden, due to the prevailing wind directions. The radioactive particles were washed out from the cloud by rain and snowfall in some areas of Sweden and deposited on the ground. The deposited radionu-clides, primarily cesium and iodine isotopes, were later absorbed into the soil and taken up by the roots of the plants. Some of these radionuclides, like 137Cs, still persist in some of the terrestrial ecosystems at relatively high concentrations which lead to contamination of the meat of moose, roe deer and wild boar even today.The two municipalities Heby and Uppsala, in the eastern part of central Sweden, experi-enced a relatively large deposition of 137Cs which resulted in high levels of 137Cs in moose and other game.

The beta value is frequently described in theory and is a well known factor to quantify the systematic risk in shares through the CAPM model. Initially, this study describes the advantages and difficulties with the estimating process and the problematic nature of the assumptions and descisons included in published beta values.An alternative method, Bottom-up beta, to estimate the beta value that probably has not been tested under Swedish circumstances is applied. The problems and decisions that have to be made to derive an alternative value are studied in detail through six separate steps. I have chosen nine companies at the Stockholm Stock Exchange where this method is used. The result showed that the systematic risk were higher at five shares and lower at four, compared to the published values.Finally there is a discussion about the practise, usefulness and opinions concerning how to estimate and interpret the beta value to determine the expected return..

The Rya power plant in Borås produces district heating, district cooling and electricity. The plant is owned by Borås Energi och Miljö AB and is run by Dalkia Facility Management AB.In order to get the best heat exchange from the district hot water a pair of twin pumps and a turbine circuit pump are used as return pumps. Turbine circuit pumps are used to increase the pressure through the heat exchangers at the power plant. The pumps are in use when the flow is over 2 000 m3 h-1 and during the summer when re-cooling is used to improve the effectivens of the heat boilers.Since the pumps, that are parallel connected, rotating at a fixed rate per minute, the pressure is regulated with regulating valves. This report shows that during the 4,300 hours that the pumps where in use, energy corresponding to 590 MWh was wasted.

?Between normal and abnormal? is a qualitative literature study about adults with Aspergers syndrom. The study aims to understand how a person with Asperger syndrome understand himself. The study is built around two issues. These are; how does a person with Aspergers syndrom describe himself and how does the diagnos influence the self-image.

Bakgrund. Kostens sammansättning får en stor betydelse för boende i Sverige då de inte tillgodogör sig D-vitamin från solen i samma utsträckning som länder vid ekvatorn, speciellt vintertid. Hela 80 % av den intagna mängden D-vitamin absorberas i tarmen, ändå visar forskning på att brist föreligger i större utsträckning bland boende över 55 breddgraden.Syfte. Studiens syfte var att undersöka hur troligt det är att boende i Sverige uppnår rekommenderat dagligt intag av D-vitamin.Metod. För att besvara syftet utfördes en internetbaserad kvantitativ studie, baserad på en frekvensenkät.

Tail-biting in pigs is an animal welfare issue and in Sweden during 2002 the producers lost tree million Swedish crowns because of tail biting. This economic loss depends on the pigs which are discarded at slaughter because of tail biting. Tail biting can be separated into two stages, "pre-injury" and "injury". The aim of this study is to investigate if tail biting depends on environment or genetic background.A lot of research on the environments effects on the behaviour of pigs but not so much on the genetic effects has been performed. The frequency of tail biting in pig farms influence among others of environment enrichment, ventilation, gender and breed of the pig.

ABSTRACTStatistics show that breastfeeding prevalence for Sweden has fallen since the mid 90´s. Studies show that breastfeeding offers health benefits to both mother and child and that the mothers' belief and confidence in their ability to breastfeed is a key factor to having a positive breastfeeding outcome. In 2010, Amningshjälpen in collaboration with Sensus studieförbund, started a nursing course, for mothers-to-be, who wished to breastfeed their babies and its aim was to prepare them for a successful and enjoyable experience.Objective: To examine whether a preparatory breastfeeding course can affect mothers' confidence in their ability to breastfeed and if that ability can affect the breastfeeding outcome when the child reaches four months. A further aim is to investigate the experience of  perceived problems surrounding breastfeeding and what affect these might have on the mothers' confidence in breastfeeding when the child reaches four months.Design/Methods: A quantitative approach with prospective experimental design was used to evaluate the study. The questionnaire Breastfeeding Self-Efficacy Scale Short Form (BSES-SF) was used three times to measure women's trust in lactation.