Zero knowledge protocols is a lesser known type of protocol that can be used for identification. These protocols are especially designed not to reveal any information during an identification process that can be misused later on, neither by the one who should be convinced of the identity of the user, nor by anyone else that is eavesdropping. Many of these protocols are also especially designed for implementation in smart cards. The more common type of card with a magnetic stripe has during the last few years become more susceptible to attacks since they are easily copied. Smart cards combined with a secure identification protocol has been predicted to be the solution to this problem.

The purpose of this thesis is to assist the Swedish energy company NIBE Energy Systems in their studies of adaptive regulation applicable to electrical water heaters. Due to coming energy classifications of these appliances in the European Union, NIBE Energy Systems needs to use adaptive regulation, called Smart Control, to keep their products in the best possible energy class and remain competitive to the market. By using this Smart Control regulation a 2-3 % improve-ment of efficiency can be credited the system. This is a small number, but heavily needed, since the energy classes are based on the idea that the European Union is provided with electricity from coal condensate power resulting in a 40 % maximum efficiency. Furthermore, doing noth-ing will result in some water heaters not being approved to use on the market from 2015 due to low efficiency.

The aim of the study was to understand how the family home secretary reasons and thinks and how they express themselves in their actions towards the family home?s biological children. The method used is qualitative semi-structured interviews, involving six family home secretaries from four different municipalities. The results were analyzed with the help of two theories ? the theory of grassroots bureaucracy and the sociology of childhood theory.

Skolans styrdokument ställer krav på att lärare och elever ska använda digitala medier i undervisningen och digital kompetens ses som en nyckelkomponent för ett livslångt lärande. Syftet är att analysera interaktionen mellan lärare och elever under problemlösningssituationer i matematikundervisningen med smart-board som medierande artefakt. Studien har ett sociokulturellt perspektiv.Empirin är insamlad genom video-observationer och studien är öppen och kvalitativ. Empirin består av fyra filmade och transkriberade sekvenser som innefattar fyra olika elever och hur de arbetar med problemlösning med smart-boarden som medierande artefakt. Empirin är analyserad utifrån EMA-modellen, som bygger på idéer från John Deweys pragmatiska filosofi.Resultatet visar att interaktionen styrs av läraren eftersom att det är läraren som styr över talutrymmet, men även vilka elever som ska vara delaktiga i interaktionen.

This study concerns design thinking and how to achieve usability when designing applicationsfor smart watches. The study's focus is on interaction and design for online auctionapplications such as Ebay and Tradera. After studying usability and design for devices withsmall screens, guidelines and design principles for interactive systems, we developed apaperprototype for an auction application. The prototype was used for testing our intervieweeswhile observing and asking questions. After collecting the data we analyzed the responses andfeedback on our prototype and combined the results to previous studies.

The aim of this paper is to look into the occurrence of home schooling by choice in Sweden. It examines the subject of home education in order to provide an informative overview. It also looks into the legal aspects of the matter to see whether freedom of choice is an issue here when it comes to choosing a certain type of teaching for children of compulsory school age. A further purpose is to provide a comparison of home education in Sweden and in other countries such as the United States, England and Norway.In order to do this we have carried out a secondary analysis of previous research and have also interviewed teachers as well as people with experience of home educating their own children. To accomplish this, we had to look to England for literature and home educating families as home education is a much more common practise in England.The result of this paper strongly indicates that home schooling is not only a legally viable option to traditional schooling, both in Sweden and the other countries concerned, but that it is also a trend that is expected to increase.

Syftet med detta examensarbete var att utveckla en utrustning för test av larmsystem uppbyggda med CareTech?s Smart Call-produkter. Testutrustningen ska kunna upptäcka problem i kommunikationen mellan dessa enheter. Den ska också kunna mäta matningsspänningen till enheterna under en viss tid och visa om spänningen har varit lägre eller högre än tillåtna värden..

Background: IT-security is included in the concept of information security, which considers all the security of handling information within an organisation. Good IT-security is about finding the right level of measurement, however, it is hard to implemement new IT-solutions in an organisation, particularly within the health care field, where sensitive information are handled daily. Lately the Swedish government, together with county- and city council, understand the importance of IT and health care. Carelink, an organisation of interest, is working actively for the presumption of benefit by using IT within the health care field. During spring 2006 the Swedish government introduced a national IT-strategy.

The focus of this thesis is on what is considered to be a suitable foster home. For the study to be carried out an application had to be made to get access to the foster home assessments in a medium-sized municipality in Sweden. With the support of attachment theory and theory of standards different categories have been picked out and analyzed in foster home assessements that have been approved. The conclusion to what is considered to be a suitable foster home is a complex issue, as there are many factors that are interacting. Social workers seem to focus on the importance of a family?s ability to provide some kind of stability and security for a child who is considered to be placed within their home.

Background: In Sweden and Norway planned home birth is not included in the health care system. In Denmark women with expected low risk birth have the right to choose home birth. Registrations of home births in the Nordic countries are not completed and women?s experiences of planned home birth in Scandinavian context are not earlier described.Objective: The aim of this study was to describe women?s experiences of planned home birth in the Scandinavian countries.Design: Inductive content analysis. Fifty-three Scandinavian women who have experienced planned home birth have replied an open question in a questionnaire.

The focus of this thesis is on what is considered to be a suitable foster home. For the study to be carried out an application had to be made to get access to the foster home assessments in a medium-sized municipality in Sweden. With the support of attachment theory and theory of standards different categories have been picked out and analyzed in foster home assessements that have been approved. The conclusion to what is considered to be a suitable foster home is a complex issue, as there are many factors that are interacting. Social workers seem to focus on the importance of a family?s ability to provide some kind of stability and security for a child who is considered to be placed within their home.

The aim of this thesis was to study elderly people?s experiences of and approach to their usage of home care services with tax deduction. The aim was also to describe how elderly people reason about their underlying motives of using home care service with tax deduction. The study is based on six qualitative interviews with people between the ages of 65 and 80, living in Nacka, Sweden. This thesis is a collaboration with Stiftelsen Stockholms la?ns A?ldrecentrum/ Stockholm Gerontology Center and part of their follow up study concerning simplified administration for elderly people applying for home care services in Nacka.

Syftet med examensarbetet är att få ökad vetskap om vad elever och lärare har för erfarenheter och inställningar till informations- och kommunikationsteknik, IKT, i skolan samt hur elever upplever att de lär genom IKT. För att uppnå syftet har vi utgått från följande problemställningar: Vad har elever och lärare för erfarenheter av Smart ? board och dator i skolan? Vad har elever och lärare för inställning till Smart ? board och dator i skolan? Hur upplever elever att de lär genom Smart ? board och dator? Vi har utfört en kvalitativ undersökning på en skola i skolår 4. Vi har intervjuat elever och lärare samt utfört observationer. I arbetet tas olika teoretikers syn på barns utveckling och lärande upp.

The aim of the literature review was to investigate how relatives to a person suffering from dementia, in institution, experienced the nursing hom staff and the relation to them. The study was based on eight scientific articles. The result gave thirteen themes, that showed that relatives experienced the nursing home staff having a hard work under pressure. They were nice but without knowledge. The relatives experienced that the nursing home staff didn´t see or hear them and gave no confidence.

This study, a narrative analysis of it, deals with the term, home, its importance and the use of it by Child welfare investigators in the city of Malmö between the years 1930-1936. Commonly used and acknowledged, home stood for security and order while the term, street, had just the opposite meaning. Living in the countryside symbolized health and sensibility, while city life was considered to be cramped, dirty and immoral. The responsibility of achieving the liberals and conservatives ideal of a sunny, clean and orderly home was given to the woman of the house, as was the task of keeping the home morally correct, and providing the necessary atmosphere for proper upbringing of the children. Consequently, the basis of theory, using Karl Marx and Friedrich Engels in regards to the conflicts between the upper and lower classes, and even theories of Jane Lewis of woman´s connection to home and family, have been the grounds for the study.