TCP (Transmission Control Protocol) is a transport protocol designed for the wired Internet. In wireless networks packet losses occur more frequently due to the unreliability of the physical link. The main problem is that TCP treats all losses as congestion, which leads to a lower throughput. Ad hoc networks are multihop wireless networks of mobile nodes, where each node can allow other packets to pass through it. Topology changes often occur and may lead to packet losses and delays, which TCP misinterprets as congestion.

Concern about personal privacy continues to grow among online users along with the fact that new technologies help online companies to share user's private information. Still the usage of online entities such as social networks and e-commerce sites continue to increase. This raises the question of why online users act in such a contradictory and irrational way.Our study examines what impact one recently developed application called social login, which is provided by several social networks and used by millions of online companies, has on consumer's evaluation of online brands when they are primed for various types of information concerning privacy issues. Our assumptions are built up on the theory of cognitive, dissonance and suggest that there will be no differences in evaluation of the brands due to the human need to rationalize their existing behavior and attitudes when they receive new or contradicting information. The potential effects are measured by a manipulation presented in a survey distributed in an online environment to a sample of users (n=,154).

Electronic availability of information resources has increasingly become an important part of academic libraries everyday vocation. This is a fact that puts impetus on the libraries to know more about the way in which electronic information is being dispersed and handled. This thesis aims to comparatively evaluate Uppsala university library´s own metadata system Summon with the publicly available equivalent Google scholar. The evaluation is based on Péter Jacsó´s theories on database evaluation which concretely puts focus on Summon and Google scholar via the use and application of ten different criteria. The uses of precision and relevance criteria were also implemented as additional evaluation tools.

In this thesis we have examined Västra Götalandsregionens ways to lobby and network in the European Union. Our aim was to examine which kind of methods the region uses to lobby in a successful way in Brussels. We found that the region uses both formal and informal methods of lobbying to gain advantages in Brussels. We also wanted to locate various networks which the region is involved in to more easily have their interests satisfied. We found that they had a lot of different alliances and that it is necessary to be involved in different networks to have a chance to lobby the EU institutions.

Swedish Armed Forces are according to their development planning process taking actions to establish a new joint unit (SWEWOSE), with electronic warfare capability. SWEWOSÉ S main task will be designated to produce electronic warfare libraries for electronic warfare systems within the armed forces. The unit shall have capability to support with libraries in any state of conflict situation even if the supported unit with library needs conducting operations abroad.This essay examines the requirements that justify the establishment of a new unit in times when the armed forces conducting reorganizations and cutbacks in both economy and personnel.The possibilities to buy complete system solutions from an external supplier are examined. But also what kind of library support model that is to prefer according to the demands that the Swedish Armed Forces desired, in terms of capability in platform protection and battle space awareness.The results show that the demands that the Swedish Armed Forces has decided, best will be ful-filled and justified by a national electronic warfare unit, with library production as a main task..

The purpose of this essay is to illustrate immigrants? and refugees? thoughts and experiences of the process of integrating into Swedish society and to examine which social networks foster the process. The main questions in the study are: * What experiences enable refugees and immigrants to become integrated and fully participating members of the Swedish society?* What is the importance of the social networks with regards to integration into Swedish society? A qualitative method was used and five interviews were completed with SFI (Swedish for immigrants) students. The study shows that knowledge of Swedish language promotes an initiative in contacting native Swedes, and it also determines the success of integration.

Individual identification of pigs could be used in commercial herds for production monitoring, disease monitoring and breeding evaluation. This study investigates the possibility of using microchips designed for dogs and cats to identify individual pigs from birth, through rearing to carcass at the slaughter plant. Two different sizes of microchips, and two different ages of the pigs at injection were tested. Castrates and gilts from ten litters were evenly distributed between chip sizes and injection ages. All pigs were identity marked with both electronic ear tags and injected with microchips.

The aim of the study is to gain a deeper understanding of how young people's current identity is affected by their criminal background. We also want to understand the impact of resources in these young people?s social networks (that is their social capital) on their life course and formation and reformation of their identity. The theoretical frameworks used (as a tool to be able to analyze the empirical data) are theories of stigma, identity and social capital. The empirical study was conducted using semi-structured interviews that focused on questions about the life-story of informants.

The aim of this study has been to investigate the significance of the newly started project Vimmerbymodellen for unaccompanied young refugees. This regarding to how the unaccompanied young refugees are participating in creating networks and meeting points in the local community. Vimmerbymodellen is described as an integration project where the nonprofit sector collaborates with the municipality. The empirical material has been collected through semi-structured qualitative interviews where five unaccompanied young refugees and four involved adults have been interviewed. The empirical material from these interviews has thereafter been analyzed through the concept of social capital, identity and empowerment.The main result of this study shows that participation in the project is expected to contribute to the creation of networks and meeting points which has significance for unaccompanied young refugees.

With the advent of a range of social networks, librarians all over the world have startedto ask themselves how this new technology can be used as a way to market theirlibraries. Today's information websites and search engines are difficult competitors forlibraries and information centers, and are forcing traditional information institutions tomarket themselves in new ways.Marketing theories have traditionally concerned themselves with money transactionsand marketing of specific services and/or products. Relationship marketing theories, onthe other hand, focus more on the relationship between the customer and the companythat produces the product or service. These two parties are seen as co-producers, andrelationship marketing theories tend to focus more on a win-win situation, than on thecompany gaining power of the customer. The relationship is the important thing, and thetheories concentrate to a great extent on how to nourish these relationships.This paper is a discussion about whether Facebook as a social network is a usable toolfor library marketing.

The value of an organization?s availability and transparency towards the public whenever and wherever it is necessary has increased. Internet and the social networks have become essential to most of the citizens of Sweden but for organizations social networking still is an area that is relatively unexplored. As the Internet and social media progresses it becomes a greater part of people?s lives, which leads to more demands but also a great amount of possibilities for the organizations that participate in this technical revolution.The purpose of this quantitative study is to examine if and how the people receiving the information published on the Växjö and Alvesta police department?s Facebook-page are considering Facebook as a channel of communication.

Today, social media is used mostly by people in their private life. However, companies are more and more tapping into the area of social media. To this date, mostly B2C companies have been successful in their social media strategies. This qualitative thesis aims to investigate how B2B companies can benefit from using social media as a means to communicate and build relations with their customers. The medtech industry has been chosen as the object of study.Through depth interviews with people in the medtech industry and social media experts, data has been collected in order to answer the questions of (1) how ready customers in the medtech industry are to receive information through social media and (2) how companies can build the best possible social media strategy.

AbstractThe aim off this study is to research social workers´ knowledge, use, risks and possibilities of social media in their work with clients. Because today the society is using social media networks in daily life and social media has become a tool in social work as well. How does social media and social work cooperate? And how does social media effect social workers? For example the website Facebook has grown huge and many people use it everyday. Where is the line between work and private life? To reach this knowledge in this study, qualitative interviews have been done with six social workers that work with children, youths and families.

AbstractTitle: Network communication for equal opportunities (Nätverkskommunikation för jämställdhet)Number of pages: 47 (54 with enclosures)Author: Hillevi GoodTutor: Ylva EkströmCourse: Media and Communication Studies DPeriod: Spring Semester 2007University: Division of Media and Communication, Department of Information Science, Uppsala UniversityAim: The aim of this essay is to study the possibilities to bring about change by the means of communication in two networks, focusing on the implementation of the Swedish Equal Opportunities Act.Material and method: The study draws on data collected in an electronic survey among representatives of two networks consisting of representatives from trade unions and employer?s associations. The material is analyzed using descriptive tools, cross tables and correlation matrices in which general characteristics as well as individual understandings of the network communication are presented and discussed.Main results: The general results indicate that the network communication serves important purposes, such as providing support and motivation for the members and changing attitudes towards equal opportunities. The analysis suggests that the network members have good communicative possibilities to serve as agents of change within their organisations. Moreover, there is an observed relation between, on the one hand, organizational context and, on the other hand, the network members? own communicational behaviour and their experienced possibility to influence their organizations.Keywords: network communication, diffusion of innovations, behaviour change, Equal Opportunities Act.

Blood-borne infectious diseases such as Human Immunodeficiency Virus (HIV)and Hepatitis C Virus (HCV) spread when the addicts share needles and injecting equipmentwithin contact networks. A quantitative cross-sectional study was conducted in Winnipeg,Canada in December 2003 - September 2004. Through a special questionnaire, respondentswere asked to answer questions about themselves and about their contacts, about relationshipsand how they shared syringes and other injection supplies. Blood tests were used to identifywhether they carried any blood-borne infectious diseases. We selected some variables from theoriginal data set.