Latent heat storage is a way to store thermal energy when a phase change material undergoes a phase change. The advantage of latent heat storage is the capability to store more energy per mass unit than other heat storage methods. The most commonly used phase change in latent heat storage is the transition between solid and liquid. Phase change materials can be divided into organics, inorganics and eutectics.In the Nordic electricity market the price of electricity is set every hour by Nordpool spot, which leads to price fluctuations because of changes in demand. The main goal of this report is to create a latent heat storage system in a single-family home and investigate the possibility to save money by charging the latent heat storage system when the price of electricity is low, and discharge when the price is high.The thermodynamic model consisted of a ?tube-in-tube? heat exchanger with phase change material in the outer tube and water as the heat transfer fluid in the inner tube.

This empirical work and base has been to analyze the government?s investigation (SOU 2008:27): the future road ? a reformed high school, which led to the high school reform that the Swedish government introduced as proposition (2008/09:199) about: Higher demand and quality within the high school. Skolverket (part of the Swedish government) has worked with the development of this steering document within their own mission Gy2011 in connection with the high schools during the transition. The reform comes into effect 1 of July 2011. This led to the main purpose to ask questions what high school principals and teachers think of the reform and to what extent it effects the high school programs, the examination system, what impact they see on the individual and the demand from society, and to some extent what the respondent´s answers about the government?s definition of what the higher demand and quality in the reform signify.

Menopause is a complex, paradoxical totality and every menopausal experience is differentfrom the other. This essay aims to capture some of the experiences surrounding it.The main questions is what it is that the women of the study share about menopause, andhow they talk about it. The material consists of interviews with eight women from the ages 51to 81, all of whom are either in menopause or have come out of it, and narratives collectedpartly on my own website ?Övergången? (?Transition?) and on the Internet via blogs and adiscussion board on menopause.Using Goffmans theories on interaction and roles and theories about gender and age as asocial construction I discovered that it is ambiguous messages that are thrown at the middleaged woman in menopause. Menopause is not always a welcome part of the role as a woman.The menopause is also associated with aging and a woman is expected to experiencemenopause during a certain age and period in the life schedule, often the middle age.

Fertility is of central interest in the dairy production but has during the last decades declined. Increased milk yield has resulted in high pressure on the metabolism of the dairy cows that are supposed to manage the transition from dry cows to lactating cows within a few weeks around the parturition. Much indicate that metabolism and fertility are closely linked, with insulin playing a substantial part. There are many studies suggesting that the main part of gestation loss can be found during the early embryo development, a period which can be studied in vitro. The aim of this study was to test the effect of insulin during maturation in vitro and to evaluate two different fluorescent stainings on oocytes and embryos; a nuclear stain and a staining of apoptotic cells through the terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL)-method. Bovine cumulus-oocyte-complexes (n=991) were aspirated from abattoir-derived ovaries.

This essay derives from the concern that horses ridden with a bit in their mouth can be subjected to strong pressure from the bit if the horse and rider do not understand each other. The horse's mucosa membrane and the tongue are very sensitive tissues (Cook, 1999; Manfredi, 2005; Oliveira, 2005; Terada, 2006) and the bit can then be a source of pain and discomfort. The training of the horse should therefore always be a step by step process and as the horse develops difficulties are increased. Oliveira (2005) suggested that high demands can be placed on the horse but to be successful in the training it is essential to be content with small progress and reward the slightest desired response from the horse. This corresponds with the principles of operant conditioning with negative reinforcement.

This master's thesis sets out to explore information literacy in a contextualized learning environment with emphasis on students at a vocationally oriented program in the Swedish upper secondary school. The concept of information literacy is widely discussed and furthermore a common subject for research within the field of Library and Information Science. Information literacy can be described as a set of skills or a range of attributes defining an information literate person. The skills and/or attributes facilitating the development of critical thinking and problem-solving skills are often linked to knowledge about computers and libraries.Another view on the concept of information literacy has been developed by the Australian researcher Annemaree Lloyd. She stresses the importance of social and physical information sources and that these also should be included in the development of information literacy.

Bakgrund: Antalet personer som vårdas palliativt i hemmet har ökat det senaste decennierna. Den palliativa vården innebär en helhetsvård av den sjuke i livets slutskede. Den skall samtidigt vara ett stöd för de närstående som har en betydelsefull roll för den sjuke.Syfte: Syftet med denna studie är att belysa upplevelser av att vårda en närstående med cancer sjukdom.Metod: En innehållsanalys genomfördes i denna litteraturstudie enligt Friberg (2006). Artikelsökningarna gjordes via Cinahl och PubMed. I resultatet användes sammanlagt elva kvalitativa vetenskapliga studier som granskats.

The purpose of this thesis is to investigate the degree of influence of holes in the web of steel beams with long spanson weakening of their bearing capacity. Making holes in the web of the beam generally reduces the bearing capacity of the beam. However, it might be necessary seen from both an architectural perspective as well as from a building services perspective by creating an opportunity for building installations.The objective of this thesis is to examine how much an I-beam can be weakened without sacrificing safety and functionality. The investigation has been done by using Finite Element Method through commercial software.The regulation for structural design of building structures in Sweden used to be specified in the document known as BKR. But this was replaced by the European norm Eurocode back in May 2011.

By using pollen analysis, 14C-dating and historical sources, I studied the history of vegetation and land use at an abandoned forest settlement near the Lade summer farms in the parish of Mora, Dalama. The aim of this paper is to investigate the agricultural establishment and development, the effects of this on forest vegetation, and the origin and development of summer farming. The analysis of pollen in a peat core revealed that a settlement was established at Lade around 1000 AD. Cereal cultivation, hay-making on the mire and extensive forest grazing were intro-duced as a complete agricultural system. Pollen analysis and the presence of ancient fields suggests that cultivation took place on permanent fields. Barley was the main crop, but rye and hops/hemp were also grown at the settlement.

3D modeling is a common tool in landscape architecture. Today, there have been new ways in which virtual 3D models are successful tools in the dialogue with the public. These new methods involve children and young people who are groups that is hard to reach and engage in citizen dialogues. The purpose of this work was to investigate how a virtual 3D model works in the landscape architect?s communication with the public through the project Gruvstadsparken in Kiruna. Through workshops, I wanted to communicate Gruvstadsparken to get ideas from participants on how the park can be used and be revisited.

Den här uppsatsen behandlar ett problem som identifierats bland små till medelstora svenska modeföretag: det stora beroendet av outsourcade produktionsagenter och fullprisproducenter. Syftet med uppsatsen är att identifiera de förutsättningar och hinder dessa modeföretag kan stöta på när de försöker integrera dessa utlagda kompetenser till en intern lösning. Genom detta hoppas författarna kunna tillföra nya perspektiv för befattningshavare som är intresserade av att omstrukturera sin nuvarande inköpsmodell.De metoder som använts för att samla in det teoretiska och empiriska underlaget var skrivbordsstudier, såväl som strukturerade och ostrukturerade djupintervjuer med grundaren av ett svenskt jeansföretag, samt en anställd på en stor svensk modekedjas inköpsavdelning.Resultaten understryker den strategiska betydelsen för växande modeföretag att äga sin inköpsfunktion. Genom att äga kompetenserna för mönsterkonstruktion och inköp kan företag minska sitt beroende av externa organisationer och öka flexibiliteten i sin produktutvecklingsprocess. De hinder som identifierats utgörs bland annat av en ökad affärsrisk under övergången till en intern inköpsavdelning till följd av avsiktliga störningar i värdekedjan av producenterna, samt de extra kostnaderna för det ökade administrativa arbetet.This essay focuses on a problem identified among small to mid sized Swedish fashion companies: the large dependence on out sourced production agencies and full price producers.

The relatively poor economy in European dairy farming might be improved from efficient feeding systems and dietary management. Increasing herd sizes and transition to loose housing systems in Sweden, increases the possibilities for other feeding systems than separate feeding that is the traditional feeding system in Sweden. Other possible feeding systems are partial mixed ration (PMR) and total mixed ration (TMR), where the TMR system sometimes is associated with overfeeding and thereby increased environmental impact and high feed cost. Diets providing nutrients above or below animal requirements are considered as unbalanced, which in turn are associated with reductions in health, fertility and milk production. On the other hand, a balanced feed ration improves feed efficiency, nitrogen utilization and profitability.

Independent schools are a central issue in the school world, the perception of independent schools varies and many people express opinions about them in the media. An independent school is according to the National Agency a school that has a different principal than the county or municipality. Independent schools may not charge fees but their revenue comes from municipal grants from municipalities (Berglund 2007, p. 10). An independent school can be driven by an association, foundation or company and to run an independent school requires a permit from the Education Department.The purpose of this paper is to see how four principals at independent schools with a Muslim profile are working to strengthen their students? Muslim identity in relation to the society they live in and how schools work with value issues.

Eutrophication of the Baltic Sea and Swedish lakes remains a major problem despite many years of effort to reduce the emissions of nutrients. One major source is waste water systems, especially private sewage systems. These sewages accounts for a very large share of nutrients per capita in comparison with citizens connected to larger sewage treatment plants. Norrtälje community has the greatest number of private sewage systems in Sweden. Discharges of nutrients, especially phosphorus, to the Baltic Sea from these sewage systems are significant.

Europas befolkning blir allt äldre och bosättningen koncentreras i ökande omfång till ett begränsat antal tillväxtregioner. Den här koncentrationsprocessen drabbar Norrlands inlandskommuner särskild hårt, eftersom glesbygdens unga flyttar av utbildningsskäl till större regioner, utan att återvända efter utbildningen, då det fattas ett yrkesmässigt perspektiv. Om några decennier kommer mer än halva Sveriges befolkning att leva i ett av de tre storstadsområdena. Även de mindre storstäderna och andra tillväxtområden emotser en befolkningsökning. Befolkningen i hela Sverige och så även i alla tillväxtområden blir i genomsnitt litet äldre, men beroendekvoten förblir där nästan konstant, eftersom dessa regioner attraherar unga människor som tillbringar sitt yrkesliv där.