In this thesis we calculate the Hawking mass numerically for surfaces in Kerr spacetime. The Hawking mass is a useful tool for proving the Penrose inequality and the result does not contradict the inequality. It also does not contradict the assumption that the Hawking mass should be monotonic for surfaces in Kerr spacetime. The Hawking mass is quasi-local and defined by the spin coefficents of Newman and Penrose, so first we give a discussion about quasi-local quantities and then a short description of the Newman-Penrose formalism..

The purpose of the study isto,based on network theory, systems theory and development ecological systems theory,understand parent?sexperiences of having children with autismspectrum, as well as understand the importance of social networksfor the parents. All of the intervieweeswere mothers. The results showed that it is important to parentsto have contact with other parents who are in the same situation as them. Many of the interviewees had a small social network.

Increased interest in nature tourism may be what saves small and dying villages, like Borgsjo? in the county of Va?sterbotten in northern Sweden, from disappearing. The nearly untouched nature in these areas is in many cases an unused resource, since true wildlife experiences are sought by many travelers. The purpose with this report is to investigate if Borgsjo? has the potential and abilities to become a destination for nature tourists, and how this should be done to avoid negative effects on nature, wildlife and culture.

AbstractMatchmaking on an organisational level? about co-operation between municipal introduction-units and voluntary organisationsEssay in Political Science D, by Rebecka Johansson, spring 2006The aim of this study is to examine co-operation between municipal introduction-units, which work to integrate newly arrived immigrants and refuges, and voluntary organisations in Sweden. The essay is a comparative case study which examines three local authorities and the main questions are;- Do voluntary organisations constitute a functioning co-operation partner to the municipal introduction-units? Are there conditions for future co-operation?The answer to the questions is that there are no, or rarely any, co-operation between voluntary organisations and municipal introduction-units. It is difficult to judge whether there are conditions for future co-operation.

Syftet med vårt examensarbete var att undersöka om elevernas kunskap för begreppen area och omkrets ökar när problemlösning används i den matematiska undervisningen. Vi valde detta område dels för att vi själva är intresserade av problemlösning och geometri, dels för att stärka oss i vår läraroll. Undersökningen gjordes med 10 elever som alla var födda 1991. Vi har använt oss av tester, observationer och intervjuer i vår undersökning. Tester och intervjuer skedde enskilt medan observationerna skedde i gruppsammanhang.

Informationssäkerhet har idag en viktig roll inom organisationer. Det finns undersökningar som visar på att attacker ökar för varje år. För säkerhetskritiska organisationer som kommuner är det därför viktigt att man har uppdaterad säkerhetsteknik, då man lätt kan falla efter i det snabbt utvecklande ämnet informationsteknik. Uppgiften som gavs av Nexus AB var att kartlägga och utvärdera en kommuns informationssäkerhet. De ville få reda på hur det egentligen låg till med informationssäkerheten i en Stockholmskommun.

The ability to tackle NP-hard problems has been greatly extended by the introduction of Metaheuristics (see Blum & Roli (2003)) for a summary of most Metaheuristics, general problem-independent optimisation algorithms extending the hill-climbing local search approach to escape local minima. One of these algorithms is Iterated Local Search (ILS) (Lourenco et al., 2002; Stützle, 1999a, p. 25ff), a recent easy to implement but powerful algorithm with results comparable or superior to other state-of-the-art methods for many combinatorial optimisation problems, among them the Traveling Salesman (TSP) and Quadratic Assignment Problem (QAP). ILS iteratively samples local minima by modifying the current local minimum and restartinga local search porcedure on this modified solution. This thesis will show how ILS can be implemented for MSA.

The ability to tackle NP-hard problems has been greatly extended by the introduction of Metaheuristics (see Blum & Roli (2003)) for a summary of most Metaheuristics, general problem-independent optimisation algorithms extending the hill-climbing local search approach to escape local minima. One of these algorithms is Iterated Local Search (ILS) (Lourenco et al., 2002; Stützle, 1999a, p. 25ff), a recent easy to implement but powerful algorithm with results comparable or superior to other state-of-the-art methods for many combinatorial optimisation problems, among them the Traveling Salesman (TSP) and Quadratic Assignment Problem (QAP). ILS iteratively samples local minima by modifying the current local minimum and restartinga local search porcedure on this modified solution. This thesis will show how ILS can be implemented for MSA.

I dagsläget används VPN allt mer bland företagen för att ansluta till olika nätverk. Detta kan medföra att routingtabellen blir alltför stor och det kan i sin tur påverka processorbelastningen på routern som delar ut alla VPN.Detta arbete hade som syfte att granska om det är några märkbara prestandaskillnader på en routers processor när olika routingprotokoll används tillsammans med VRF. Protokollen som detta arbete tog upp var BGP, OSPF och RIP.Tre olika nätverks-scenarier skapades där olika tester genomfördes för de tre nämnda routingprotokollen. Det gjordes även tester på routrar när ingen VRF användes för att jämföra resultaten. Testerna bestod av att granska processorbelastningen på routrar när det fanns många rutter i nätverket och när nätverket var belastat med trafik.Testernas visade att skillnaden mellan BGP och OSPF inte är särskilt stor, men när RIP användes så steg processorbelastningen markant när nätverket hade många rutter.

The departure point of this thesis is the context of the institution and the processes surrounding the handling of personal archives at the National Library of Sweden. These processes are examined using Actor Network Theory. Around the personal archive a network is constructed and contained by actors ? the archive itself, the librarian, the conservator, the researcher, organizational structures and others. Within this network choices are made of what is significant.

This master thesis deals with the differences in the design of the environmental scanning between different kinds of organisations, as well as the demands and regulations etc. in the respective environments that influence the environmental scanning. The content of the environmental scanning and the organisation of the function are outside the scope of this study. Two organisations that do not have an organised function but are scanning their environment were chosen for the investigation. A model for conducting the environmental scanning developed by Frankelius is used to analyse the practice of environmental scanning.

This master thesis examines online reading groups with swedish participants. The aim is, by way of introduction, to investigate what kind of online reading groups that exist and how they work. The overall question of the thesis is: how do a conversation about books on the Internet look like? The theory used is Grounded Theory and this is a methodology which has influenced the hole structure of the study. Grounded Theory apply that issues and hypothesis must be created from the collected material, and the author collected for this reason material in the form of survey answers, email-conversations, blogmaterial and articles to draw up exact issues based on this material.The material was sorted into four different categories; social reading, reading fellowship, virtual freedom and anonymity and the issues were formulated according to this categories.

In this paper we examine what security is to the individual and how the individual creates and maintains security in their work. The purpose of this paper is to study how the creating of security in working life is performed. We conduct six semi-structured qualitative interviews with permanent employees in the private sector and we encode our material using thematic analysis. We analyze our material and illustrate our problem area on the basis of Anthony Giddens's theory of ontological security and give examples of how security and creating of security is performed at the empirical field with previous studies in the research area. Our survey shows that security for the individual at work seems to be about having continuity in everyday life, financial stability, a permanent employment, a challenging and fun job and a family in good health and good living.

En sammanfattning av uppsatsen på maximalt 8000 tecken.This thesis is mainly dealing with the mobility of the employees within the borders of the European Union. Legislative framework from the EU is favourable and the Commission has set as one of it goals to promote the migration. Globalisation trends and contemporary business concepts need people who are mobile on the other hand. But migration numbers are still low within Europe. The purpose of this thesis is to find out how much the legal uncertainties, and the different culture mentality in the workplace of another country act as barriers in the minds of the people who wish to work abroad.

In recent years, the internet has exploded of images. Not at least in the popular photo-sharing network Instagram as one of the fastest growing social network for the moment. Millions of people around the world share pictures and expose themself for friends and family. We were therefore interested in which experiences and attitudes users have towards their identities in relation to their self-image and self-presentation on Instagram. Furthermore, whether they in general have a primary interest in using Instagram as a tool to experiment with images to present their identity on Instagram, in which way they approach their Instagram follower?s expectations on how they present themselves on Instagram and if they are aware of any strategies in their self-presentation on Instagram.The result of this study is the fact that our respondents thinks that they do not intend to have a primary interest in experimenting with images on Instagram to present their identitiy, it is rather something that comes naturally in how they present themselves on Instagram.