Voice over IP (VoIP) is a relatively new technology that enables voice calls over data networks.With VoIP it is possible to lower expenses, and increase functionality and flexibility. FromSwedish Armed Forces point of view, the security issue is of great importance, why the focus inthis report is on the security aspect of the two most common open-source VoIP-protocols H.323and SIP, some of the most common attacks, and counter-measures for those attacks.Because of the level of complexity with a network running H.323 or SIP, and the fact that it hasyet to stand the same level of trial as of traditional telephony, a VoIP-system includes manyknown security-issues, and probably at present many unknown security flaws.The conclusion is that it takes great knowledge and insight about a VoIP-network based onH.323 or SIP to make the network satisfyingly safe as it is today, and is therefore perhaps not asuitable solution for the Swedish Armed Forces today for their more sensitive communications..

The purpose of my study is to investigate the wideness of working with fiction in education during the early years in primary school. I want to see in what way fiction is involved and why the teachers choose to work the way they are with fiction. I also want to see what kind of effects this work could have on the development of the pupils. I've done interviews with four teachers to find out about their opinions when it comes to involve fiction into the education. The teachers are all working with pupils between nine and eleven years old.

Organising knowledge in a corporate environment : a case study at the development departments of Ecophon ABThe purpose of this master's thesis is to investigate how three development departments of a technical firm could organise their collection of documents and information resources to improve their management of information. Three sets of questions have been posed: 1) How does the target group of engineers deal with information, and what problems can be identified in this process? 2) What does their collection of resources consist of, how is it organised, and what problems are apparent? 3) How can principles of knowledge organisation be applied in a corporate environment?The investigation has been carried out as a case study. Three main methods of collecting empirical data have been used: surveys, unstructured interviews and collection observations. The results of the study have highlighted three major problem areas: the collection's lack of structure and searchability, the absence of policy regarding how employers should deal with information, and the inadequate knowledge among staff on how to search for, use and disseminate information.By looking at previous research on knowledge organisation, we have been able to draw conclusions regarding how the target group could organise and manage its information and knowledge in order to achieve greater efficiency in dealing with information and carrying out work tasks.

Camelids, especially alpacas, have increased in popularity during the last decade, with the result that they are more frequently encountered by field practicing veterinarians and pathologists. Knowledge regarding their health care and their diseases under Swedish conditions is, however, limited. This became clear in a postal survey among Swedish alpaca owners conducted in 2008. To improve knowledge about camelids in Sweden, this study has examined 107 necropsies, including 93 alpacas and 14 camels, conducted at the National Veterinary Institute (SVA) in Uppsala and at Eurofins in Kristianstad and Skara during the period 2001-2013. The study has shown that camelids in Sweden suffer from diseases similar to those previously reported in other countries in Europe and North America.

Few scientific studies have studied the subject of longevity among horses over a longer period of time. The knowledge about the Swedish riding school horse population concerning injuries and diseases is insufficient. Generally speaking, riding school horses in Sweden have a more undiversified way to work and work more hours in the arena compared to privately owned horses that have more variety in their possible use. Statistical data from the insurance company Agria have shown that horses in riding schools and education facilities have 22 % higher risk to use their veterinary insurance and 79 % higher risk to be put down and use their life insurance, compared to horses in private care. To create an increased understanding for longevity is it important to have knowledge about the different causes of culling. The aim with this study is to increase the knowledge and enable problem solving within the subject of longevity, median length of life and causes of death.

Families with limited financial resources risk social exclusion in today?s consumption-based society, where status and identity are tied to items like clothing, gifts and activities. Limited financial resources can therefore often lead to social isolation because consumption is central to social participation, something that can rarely be prioritized in poor families. In preschool, unclear policies on extra costs can negatively affect families. The purpose of the study was to investigate how socioeconomically vulnerable families experience and are affected by the preschool and its requirements, as well as how preschool teachers work to reduce the economic gap among families in the preschool context.

Electricity production from renewable energy resources such as wind energy and photovoltaics is variable. Integration of these intermittent resources into the electricity system leads to new challenges in how to manage imbalance between supply and demand on the grid.One way to meet these challenges is to develop so-called smart grid solutions. One idea, called demand response, is to adjust the amount or timing of energy consumption, e.g. by control of household appliances, to provide flexibility that could be used to balance the grid. In aggregate, when applied to many units across the system, large volumes of energy could be made available when needed and this grid flexibility can be used as a product on the electricity regulation market.Despite the potential benefits, the number of demand response bids is currently low.

Today, the TV vignette is considered an embellishment to a TV program, despite its broad audiences and unique appearance. We wanted to find out if the television vignette has some common features and conventions but also find out how it relates to genre.We used a case study where we analyzed ten vignettes that we chose from certain criteria. We used a model based on image analysis that we modified to fit our needs. The main parts of each model consisted semiotics, imagery, dramaturgy and sound.We also made a couple of interviews with people who are active or used to work with vignettes. As a result we discovered that the television vignettes consist of certain conventions and that the vignette will not be considered as an independent genre, until the public has accepted it.

This Masters thesis work describes a comparison between two different methods for estimation of the down channel (base station to mobile subscriber) in Wide-band Code Division Multiple Access (WCDMA). The first estimation method, Optimal Feed-forward Channel Estimation (OFCE), is a conventional method that bases the estimates on data that is known to both sender and receiver, so called pilots. The second method, Decision Directed Channel Estimation (DDCE), is an elaboration of OFCE. It also uses user data for estimation. Simulations show that DDCE, in comparison to OFCE, does not attain an improvement in signal-to-noise-ratio (SNR) for high bit error rates (BER).

This study was made to compare construction companies for gardens way to work with up following, with purpose to see if there was an efficient and not resource demanded system which gave much value. To achieve the purpose a case study was made. The delimitation for the case study was only to compare the work with up following on individual project. The delimitation on the companies in the study was from ten to sixty employees. That because to reach companies were it´s not the same person how calculates on tenders and than perform the projects. The study was delimitated to the west side of Skåne. T o be able to compare the companies and to find trends, an interviewguide was made and was used during the interviews with the companies.

Existerande skolstrider, överlappande skolteorier samt vetskapen att erfarna psykologer arbetade integrativt var anledningarna till att Örebro Universitet, 2002, startade ett Psykologprogram med integrativ psykoterapiinriktning. Den grupp som examinerats från programmet har ännu inte studerats utifrån hur de beskriver sitt arbetssätt, deras föreställningar om psykoterapiintegration och hindrande faktorer för integration av terapiskolor samt hur de tolkar evidensbegreppet. Studien är en tvärsnitts enkätstudie med kvantitativa och kvalitativa frågor som syftar till att besvara dessa frågeställningar. Ett tillgänglighetsurval resulterade i 70 stycken deltagare. Deltagarna anger sitt arbetsätt som i huvudsak integrativt.

The study intends to find easily recognizable indicator species for water quality in the constructed wetland of Flemingsbergsviken. The study is relevant since indicator species can be difficult to determine for common people. Easily recognizable indicator species could improve dialogue between the scientific community, administrative authorities and the general public. Such species could be used in education systems, associations or in information campaigns. Therefore, I have chosen to refer to these species as didactical species.

The purpose of this study is to analyze how companies that sell financial services can reach people in the younger audience. The financial services that we refer to are regarding banking and insurance for private users, and with the younger audience we refer to people in the age of 18 to 25. We think that this is a valid and interesting issue to study because of the common thoughts that persons in this age are common users of Internet, social medias and new technology. The main question through our study has been; ?How a financial company can attract the younger generation, and support their creation of value?" Our research is based on a qualitative method.

Syftet med föreliggande studie var att studera huruvida intagna på en störrekriminalvårdsanstalt (klass A) i Mellansverige, skiljer sig i personlighetsdragen Samvetsgrannhet, Vänlighet, Extraversion, Emotionell Stabilitet och Öppenhet ijämförelse med två kontrollgrupper. Tidigare forskning har visat att kriminella personer ligger lägre i skalorna (faktorerna) som mäter Samvetsgrannhet och Vänlighet, i jämförelse med ostraffade individer (t.ex., Miller & Lynam, 2001). Den primära hypotesen var följaktligen att söka diskrepans mellan just Samvetsgrannhet och Vänlighet i enlighet med tidigare empiri. Studien genomfördes med ett självskattningsformulär som stödjer sig på en svensk översättning från Goldbergs (1992) International Personality Item Pool (IPIP)beträffande grundläggande personlighetskaraktärer. Studien utgjordes av intagna(n = 46) och två kontrollgrupper bestående av studenter (n = 32) samt vaktpersonal (n = 45) vid en klass A anstalt i Sverige.

The study is about the collaboration between assistance administrators and unit managers. The aim of the study was to understand the assistance administrators and unit managers interpretation of the concept of collaboration, as well as their experience of collaboration in the practical work in elderly care in the common work around care recipients in the evaluation and execution of home help services. The analyse of the interview material was conducted by using collaboration and New Public Management (NPM). We used the qualitative method in our study with semi-structured questions. The interviews were transcribed, coded and thematised based on our questions. When interpreting the interviews we used the hermeneutic circle in which we analyzed the study's various parts and then attached them to the collaboration, NPM and also to earlier research and to each other. The conclusions that emerged raises the important factors for collaboration and could be linked to collaboration, NPM and previous research.