The voltage level in the power grid varies due to variations in load and production. Normally these variations are manageable, but they may be excessively large during a disturbance. If the voltage is too high it may damage the equipment in the grid and too low voltages may cause problems like voltage instability. The magnitude of the voltage variation depends on the short circuit power capacity of the point of interest.This problem may become lore prominent due to automatic voltage regulation that acts on shunt reactors and shunt capacitors. When the shunt reactor is connected or disconnected to the grid it may cause such large changes in the voltage that the shunt reactor starts hunting.

The purpose with this study is to gain understanding about student´s view of mathematical education, in the later years of nine-year compulsory school, and the motivation factors that can be identified when student´s gives opportunity to express their own thoughts due to the mathematical education. From experiences we have gained during the practical part of our teachers education we got the impression that student´s think that the mathematical education is boring and uninteresting. Through qualitative methods such as survey and discussions in focus group we have analyzed student´s views of mathematical education and pointed out witch motivation factors that are expressed when student´s gives opportunity to influence over their own education. The results are shown from the answers and comments that student´s gave, during the survey and focus group, and is divided into two main parts, both with focus on motivation ?Mathematics and motivation? and ?Student´s influence and motivation? and also a summery part ?Motivated for mathematical education when the student is given influence over the education?. The study showed that student´s wants to have more difference in the work methods that are used in their mathematical education such as problem solving, games, more work in groups and pairs and more use of IT. In conclusion the study also gives suggestions to other studies that can be made in the same genre as this study in the way that IT can be used in mathematical education and how student´s interest can be used in the education to gain more motivated student´s..

A trend since the early 90?s has been that some public libraries offer a special shelf containing environmental information to the community, but it seems as though the subject has been overlooked by the literature and the science community. The purpose of this bachelor thesis is to study how three independent public libraries work with environmental information that is made available to the community. The following questions were addressed: 1) Which arguments can be found as to why the libraries offer this activity? 2) How does the environmental work at the public libraries look and what does it contain of? 3) Are there any similarities or differences in this work between the three libraries?To answer these questions interviews with librarians were carried out; observations were made to complement the interviews.

This thesis has been made in cooperation with Forsheda Stålverktyg AB which develops and manufactures injection moulds and diecasting tools. The main concern has been their Trading-system which provides them with considerable amount of quality lost function.Focus has to however be put on the analysis of the Trading-system due to the fact that this has previously meant various quality issues for the company.This thesis treats quality assurance of the Trading-system, identification of the problems in the process and improvements of these problems.Quality assurance is carried out when a company detects that their quality based costs become too high. Quality based cost are? the costs that would disappear if a company's products and its different operational processes were absolute? (Sörqvist, 2001 p.30, free translation from Swedish). High quality based costs often result in increased quality problems, which can lead to substantial economic loss for the company.This work has resulted in a thorough review of the Trading-system whereupon problems have been identified.

The aim of this study is to examine how one can understand the experiences that social workers within the social service's have of children who have committed sexual assault against other children, and the social workers? thoughts about the choice of actions and the family involvement in those actions. The study has a qualitative character. Information was obtained through interviews with social workers within two Swedish counties, and the analysis of the results was based on earlier research findings as well as theoretical aspects, such as systemic theory and salutogenesis.Regarding the actions taken for the target group, the social workers have, in many ways, a systemic perspective as they emphasize elements within the child as well as within the family. It is also shown that the collaboration with other authorities affects the choice of actions, and that it is important to involve the entire family in any interventions, so that the effect of those interventions may last over time.

Old people's life situation when receiving municipal help and care in theirlast period of life is sparsely investigated from their own perspective. Thepurpose of this study was focused on the thoughts of the aged people andtheir personal experiences on what quality is within the geriatric care. Inthis qualitative study, 10 elderly people aged 75-90 years wereinterviewed from 3 different nursing homes within Solna Municipality.Qualitative interviews, with the emphasis on their present life situationespecially what brought about a good life, were performed. The interviewswere analysed using qualitative content analysis. The implication of theterm ?meaningful existence? is individual and differs from person toperson.

Global warming is going to affect our society in many ways. One can say that the problem we face has two different sides. One of those sides has received a lot of attention, namely how we can reduce our emissions of greenhouse gases. However, because of the climate system's inertia the climate will continue to evolve over a period, no matter how much we will cut back on emissions. Because of this, we have to start adapting our society to the climate changes that we cannot influence.

The purpose of this paper is to determine the established law and make researches into non-institutional compulsory care (?mellantvång?) paragraph 22 The Care of Young Persons (Special Provisions) Act (from now on called LVU) and examine whether the administration of the law is in harmony with the best interests of the child.This paper combines two methods : traditional judicial method and a social science method. In the juridical part the sources of law have been studied and in the social sciences part semi-structured interviews have been conducted with five respondents. The theoretical framework consists of ideas and theories about the best interests of the child, a concept which is one of the UN Convention on the Rights of the Child's core principles.This study shows that the legislator has identified a problem and an existing need and found a solution to this by introducing a non-institutional compulsory care, paragraph 22 LVU. The problem is that Social Services do not make use of the restraint.

The aim of this Masters thesis is to identify discourses within the school library field and to analyse which professional identities the discourses result in for school librarians. The empirical data consist of 71 articles from Swedish journals concerning school libraries and school librarians, between the years 2000-2003. The theory and method used is a discourse analysis which is inspired by Ernesto Laclau and Chantal Mouffe. This form of discourse analysis was chosen since it was useful when identity was the focus of study. The analysis is accomplished in three steps.

The aim of this qualitative study is to examine how users of talking books perceive the possibility of downloading talking books from home without visiting the library and how this affects them. Three research questions were formulated:How do talking book users reflect on their library usage?Have the subject's' library usage changed since introduction to the download service?How have users experienced the service?To answer these questions, five semi structured interviews were conducted with five different users of talking books in Sweden. All subjects were currently using download services which they had gained access to from their local public libraries. In analyzing the interviews, a theory established by Henrik Jochumsen and Casper Hvenegaard Rasmussen in Gør biblioteket en forskel (2000) was used.

The aim of the thesis is to examine discourses about political violence categorised as ?ethnic? in academic literature and the media. Employing the method of discourse analysis, the study analyses news coverage of the wars in former Yugoslavia 1991-1995. The theory applied is based on Michel Foucault?s theory of the relationship between power and discourse in the constitution of knowledge, and the main arguments are supported by the work of the political scientist V.

The purpose of this essay is using theories about labeling and social bonds to study whether a measure of rehabilitation for the psychically disabled contributes to a return to a normal status as not-labeled. Partly we examine whether the activities organized by the regulation-ruled authorities during the work of rehabilitation lead to shame or pride, and partly how these activities are organized regarding the processes that lead to the emotions pride or shame among the participants. Method: qualitative semi-structured face-to-face interviews with professional rehabilitation-actors at the Public Employment Office (PEO), the Social Insurance Office (SIO), the Social Service (SOS), the Psychiatry and the Division of Labour Market (AME).Conclusions: the Psychiatry clients are treated with respect, may participate, and communication is characterized by attunement, therefore strong social bonds can be built. On the contrary, among the other examined activities, we found many elements that arouse shame. Since these are more ruled by regulations, the result is engulfment and demands on conformity, because the compromise-possibilities are almost non-existent.

The key elements of sourdough fermentation are the presence of active lactic acid bacteria (LAB) and yeast. Sourdough fermentation originates from the ancient Egypt. One theory concerning its onset states that a portion of bread dough was set aside to be baked at a later date and started to ferment spontaneously.Sourdough may contain a wide variety of microorganisms, mainly dominated by LAB and yeast. There are over 50 species of LAB that has been identified in various sourdoughs and more than 20 species of yeast. Sourdough fermentation has been shown to have various impacts on baked cereal good, most of which are attributed to LAB.This study addresses some effects of LAB from fermented milk products in sourdough and sourdough bread.

The world has become a globalized place in constant development and much of which is now taken for granted did not even exist 30-40 years ago, such as smartphones or Internet in common households. As new tourist destinations is continuously being created, it becomes increasingly important with effective place marketing to compete in the global market. Developing a good and interesting profile is thus a way for places to become more attractive for tourists. The main theory in the paper is "post-industrialization and the entrepreneurial city" which describes how cities in the global north have moved away from industry towards becoming post-industrial cities ? very often with a strong focus on tourism.

Introduction: In Sweden the definition of ambulance nursing is the examination and treatment of sick or injured people done by ambulance nurses during transport.  This means not only focus on the illness or injury but also the human being treated. The paramedic service must be based on the presumption that the medical needs of the patients are guaranteed, and that the expectations and demands of the public are satisfied. Competence and availability are basic terms for a well-functional paramedic service. There is a lot of pressure put on the people working with pre-hospital nursing. One mistake can lead to serious consequences for the patient.