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..

Semi-natural grasslands are threatened biotopes in the landscape and without conservation measures high values of nature will be lost. Meanwhile, the biological values associated with cultural values of the traditional agricultural landscape in Sweden. Studies of land use history may help to understand how today biological diversity has evolved and how it can be preserved. Färsna farm in Norrtälje has left some of the old heritage of biological diversity in the form of nature - forest and grassland, which hosts an unusual herb-rich flora. Through the study of historic maps and från1673/1767/1801/1901 1952 and orthophoto of the area has a picture of how land use has changed over time emerged.

Can degree of degenerative brain disease be predicted with the help of measurements of cognitive deterioration?Alzheimer?s disease progresses through nerve cell break down in the brain and the simultaneous deterioration of the individual?s cognitive function. This disease is common among elderly persons. This thesis examines if the level of deterioration of cognitive function is associated with different biochemical and clinical markers for degenerative brain diseases. In addition, this thesis examines if the level of decline in cognitive functions vary between groups with different levels of degenerative brain disease.

SARS [Severe Acute Respiratory Syndrome] penetrated China in spring of 2003, created havoc in the social society, exposed weaknesses within the political system and pushed the nation towards a crisis of confidence. At the same time the crisis revitalised the Party's position, brought people from different social stratum together and had a beneficial impact on the populace's knowledge on health related issues.What makes the SARS crisis in China interesting for further and deeper investigation is the method it chose to respond to its national crisis. They plan of response was indeed a retrogression back to "older" times, using methods and propaganda very much like those used during Mao Zedong and later Deng Xiaoping. The first step of response was denial and cover up of the real situation, which quickly turned to unprecedented transparency, as the magnitude of SARS became known. The Party and the government were quick to proclaim themselves as the bearer of the key knowledge and information on how to best fight the disease, this in sharp contrast to the political trend of more co-operation between the private and public sector and political transparency.

The purpose of this study is to examine the experiences of threats and violence among four social workers at a social services' reception center for individual and family care. The study uses semistructured interviews and an abductive approach. The analysis is based on previous research, communication theory, coping and sense of coherence, SOC. The study shows that the studied workplace isn't considered to be particularly exposed to threats and violence, although all four respondents have experienced threats and/or violence. The respondents make a difference between threats and harsh words from clients because they consider their clients are entitled to be upset considering the nature of the work conducted at the workplace.

This thesis has the overall objective to develop the optimum sealing system between the retarder and transmission. Today, there is a pressure-relief and two radial seals separation between the retarder and transmission. It has been found that carbon residue formation may occur between retarder axle and seal lips with, in some cases, leakage as a result.We have in this thesis tried to explain the phenomenon of carbon residue, how it is formed and why it can be seen just on the seals? A rig test was conducted where we show how friction, speed, transmission temperature and mitigation phases of the retarder affects temperatures in the sealing environment. Factors affecting the coke structure are reported, together with proposals for measures that provide a mitigating seal environment.

Several studies have investigated the relationship between different measures of innovative activity, such as patent statistics and R&D expenditures and some have looked deeper into the differences between large and small firms regarding number of patents issued per employee or per R&D dollar. In this paper, the objective is to find out if there are any indications of a barrier to entry (due to economical factors, lack of knowledge etc) for small firms to get into the field of patent handling. The approach is to first set up a hypothesis based on some simple assumptions about how firms would make decisions about whether to apply for a patent or not and thereafter use econometric methods in an empirical investigation. The data used for this study are figures on number of employees, number of patents granted and R&D expenditures for the Swedish firms in the pulp and paper industry. The main conclusion is that, based on the analysis of the data from this rather limited group of firms, no such barrier can be seen..

Bakgrund: Förstoppning är ett av de vanligaste symtomen från mag- och tarmkanalen och att drabbas av förstoppning kan vara en hemsk upplevelse. Tillståndet påverkar personen både fysiskt, mental, socialt och existentiellt, vilket leder till försämrad livskvalité. Syfte: Att beskriva vilka icke-farmakologiska åtgärder som finns för att förebygga förstoppning hos äldre personer över 65 år. Metod: Studien genomfördes som en allmän litteraturstudie där vetenskapliga artiklar söktes i databaser på Internet och manuellt i referenslistor. Åtta vetenskapliga artiklar inkluderades i studien och dessa analyserades och utformades till ett resultat.

The purpose of this paper is to find out if there are any simple solutions to attract an increased use of public transportation in a smaller town in Sweden. Simple solutions are measures that can be taken within the current budget, and which do not require large investments and extensive political decisions. In order to search for possible solutions I needed to find out which factors and attitudes that determine why people choose public transportation and peoples? traveling habit. I have made a survey study of satisfaction and attitudes among the consumers of a public transportation company in Växjö; Länstrafken Kronoberg.

Purpose: The purpose with our study is to accomplish a quantitative research of all municipalities in Sweden and see why they apply Balanced Scorecard. The study will also investigate the spread of Balanced Scorecard, even the benefits and how they use it. Method: In our study we have chosen a quantitative research. The study has been accomplished with a questionnaire survey which we sent to all of the Swedish municipalities. We have also done a literature study to get more knowledge about relevant theories. Finally we have compiled the questionnaire in Netigate and Excel, and analysed the result from the questionnaire. Results: Balanced Scorecard is well-known in the Swedish municipalities and 36 percent of the municipalities use this scorecard in whole or in parts of the organisation.

The construction business is one of the most accident prone businesses in Sweden. In order to make it safer it?s vital that all employees of a company report all accidents and incidents that occur. This report intends through qualitative interviews, to analyze the knowledge and attitude towards incident reporting among the employees of the Swedish construction contractor JM.The goal of the thesis work is to hopefully contribute to an increase of employees? awareness on those issues.

The study was conducted with an landscape approach with an subject related approach in the field of environmental psychology to investigate how road design affects drivers' choice of speed. The purpose was to portray road environments on thoroughfares in urban areas to motivate motorists to keep the speed limit and thus increase road safety for vulnerable road users. The task question was formulated, how can thoroughfares in suburban settings be portrayed to motivate motorists to reduce speed? The study was conducted throughout a literature review of motivational speed measures along with interviews with road design experts at the Swedish Transport Administration. Case studies were conducted on three thoroughfares in the Stockholm suburbs Vallentuna, Upplands Väsby and Danderyd.

In this project a simulator has been developed (in C++) with the purpose of illustrating how changes in environmental regulations, tax levels and other policy measures affect the composition of an energy system. The aim of the project was to investigate how energy companies? investment strategies are affected when changes in economic and environmental conditions occur. A standard scenario has been created based on current Swedish conditions, but the user can create new scenarios and set parameters freely. The user is tasked with building power plants to supply the city/region with district heating and electricity during a pre-set number of years. When the simulation is finished the result is graded in the following categories: economy, environment and quality. To evaluate the simulator three scenarios were created (?early 20th century?, ?reduced environmental control? and ?future?) in addition to the standard scenario and these were compared with each other by examining how a select group of power plants perform under the given conditions.

This is a study of innovative technologies that are primarily based on collaboration with a client who in this study is called FTG, because they chose to be anonymous. A problem set has been presented, analyzed and worked with. The result of this is that we found some weaknesses in the leadership that have influenced the motivation in the workgroup negatively. The study has focus on changing leadership in order to increase motivation and openness to innovation within the company. With this focus on change in leadership, we have done a basic search for relevant theories related to the topic and found interesting data to work with.

Summary The leaf beetles, Lilioceris lilii and L. merdigera have existed in Asia, Europe and in North Africa for a long time, but have become much more abundant the last twenty-five years. Even North America has been affected during the last years. The purpose of this investigation of Lilioceris species in Sweden, is to give advice to gardeners, which type of control measures is the most effective in order to restrict their damage to lilies. Lilioceris species overwinter normally as pupae in the soil under the host or close by. Literature and contact with advisors have described the life cycle and spreading of Lilioceris. Under favourable conditions these leaf beetles have two generations/year in the south of Sweden. Both the adults and the larva eat the foliage, and by strong attacks even flowers can be eaten and only the stem is remaining. My own observations include different treatments of both lily foliage and of the leaf beetle.