This thesis compares the impact on disk performance in a GNU/Linux  environmentwith three encryption algorithms: AES,  Serpent and Twofish in three different implementations: DM-crypt, Loop-AES and Truecrypt. For all three algorithms a key length of 256 bits is used.The thesis shows that the least performance impact during data encryption, and thus file writing, is reached by using AES or Twofish encryption implemented in DM-crypt or TrueCrypt. The thesis shows that some data operations with a sufficiently low processor utilization barely affects disk performance at all if encrypted using the optimal implementation and algorithm.It is also discovered that the performance impact during data decryption, or file reading, can be minimized by using the most efficient implementation and algorithm. The best results are met with the AES or Twofish cipher, regardless of implementation.An important conclusion that  is  drawn is that it is hard to determine a superior encryption solution for all purposes. However, by reviewing and examining the collected data from all aspects of disk performance the AES implementation in TrueCrypt is, with small marginals, determined to be the most optimal..

Background: Homelessness is increasing, and health care is still difficult for many homeless people to achieve. If they get sick, it is both technically challenging to get a clinic they can go to, but also an economic problem because most of the homeless have no gainful employment. The fact that many homeless people experience bad attitudes of health care professionals is one reason why they don?t seek healthcare until an emergency arises. In the profession as a nurse, all people should be given equal treatment regardless of background.

Bakgrund: Sjuksköterskors bemötande påverkar patienternas välmående och i slutändan hälsa. Påakutmottagningar där tempot är högt och besluten snabba är det extra viktigt att ha med sig tanken om detgoda bemötandet. HSL, Socialstyrelsen och ICN:s etiska kod för sjuksköterskor tar alla upp olika aspekter avbemötande. Bemötandet är lika viktigt som vården för patienterna, men idag är det klagomål på bemötandetsom står för flest anmälningar till patientombudsmannen. Syfte: Syftet med arbetet var att beskriva patientersförväntningar på sjuksköterskor på akutmottagningar samt att belysa i vilken mån sjuksköterskorna leverupp till dessa förväntningar idag.

De senaste åren har det skett en nedprioritering av risk- och krisföreberedande arbete på kommunal nivå, främst gällande naturkatastrofer. En av anledningarna till detta är att de kommunala medlen prioriteras mot andra saker som exempelvis skola, vård och omsorg.Syftet med uppsatsen är att undersöka lärdomar och förmåga rörande hanteringen av naturkatastrofer på olika myndighetsnivåer i Sverige. Lärdomar studeras utifrån ett verkligt exempel: skogsbranden i Västmanland sommaren 2014. Huvudfokus för uppsatsen är att studera Uppsala kommuns förmåga att hantera en eventuell framtida naturkatastrof.För att undersöka syftet används två teoretiska modeller: Framgångsfaktorer för krishantering samt DROP-modellen. Framgångsfaktorerna används sedan för att se om lärdomar har inhämtats ur skogsbrandskatastrofen.

The main objective of this study was to evaluate animal welfare situation in Ethiopia during slaughter and to investigate chain activities between animal markets and Kera abattoir in Addis Abeba. In total, 442 animals were observed within 52 groups of cattle; both ox and calves with different breeds. The study was divided into four different sets of data collection; behavioural observations, recording of slaughter process, observation during transport and interview. During the behavioural observations, an ethogram was used with 46 behaviours observed, categorised into 5 different groups. The data was calculated using Excel and SAS. The results indicated that a significant correlation (p-value.

The world is getting smaller. Global markets, political processes and communication technology bring people together. Even though many of these processes are dynamic and constructive, they have also resulted in a need for better and more effective ways of international conflict resolution. This thesis investigates central issues connected to the concept of humanitarian interventions in relation to current and future legislation of the European Union. The overall question is whether the rapid globalization process has resulted in a change of international law towards more liberal view where authorization of the security council is not always needed? And, if there has actually been such a liberalization, how does that affect the legal possibilities for the European Union to carry out armed operations without the consent of the global community?The conclusion of the thesis is that international law has been modified mainly in two aspects: First, the concept of sovereignty is no longer seen merely as a right of the nation, but also as a responsibility.

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). An improvement is only seen when the BER becomes much lower than what is common in real situations. In conclusion DDCE is complicated, involves many mathematical operations and gives insignificant improvement of SNR when BER takes common values. It is legitimate to question if it is possible to use the method in a real mobile phone system..

Title The User Created Fire ? Risks and Opportunities with Crisis Communication in Social Network SitesAuthor Charbel SaderCourse Master Thesis in Media? and Communication Studies, Department of Journalism and Communication, University of GothenburgSemester Spring semester of 2013Tutor Nicklas HåkanssonNumberof pages 75Purpose To find a deeper understanding of the digital media?s role in Swedish society in relation to crisis communication.Method Qualitative approach using focus group interviewsMaterial Semi structured focus group interviews with a total of 18 participants in five groups. The focus group sessions were made during February, March and April 2012.Main results The main findings in this study are that users expect the communication flow in social network sites (SNS) during a crisis is to be a shortcut to information without a detour through organizations or traditional media. Although we find personal gratification, like interpersonal communication, quick information and sharing feelings and experience with others by using SNS during a crisis, users also tend to be hesitant about the credibility of the shared information. Alongside the user created content, we look to professional media experts and organizations as a guarantee for the veracity of the shared information.

Bakgrund/syfte: Många patienter, varav unga vuxna(18-25 år) utgör en stor grupp, använder akutmottagningar [AM] av obefogade skäl. Problemet med icke-akuta patienter på AM har varit ett diskussionsämne sedan 80-talet i västvärlden. De långa väntetiderna och ökade patienttrycket på AM är associerat till en försämrad upplevelse av vården ur ett patientperspektiv. Primärvården har en nyckelroll i att styra flödet av patienter som söker vård. Föreliggande studie syftar till att undersöka hur unga vuxna (18-25 år) söker vård relaterat till kön, ålder, symptom och lämplig vårdnivå, AM kontra Närakuten [NA].Metod: En deskriptiv konsekutiv enkätinsamling genomfördes på akutmottagningen på Akademiska sjukhuset och på närakuten (Cityakuten) i Uppsala.Resultat: Kvinnor sökte mer vård i undersökningsgruppen och den vanligaste orsaken till besök på AM var buksymptom och på NA var det allmänna influensasymptom.

Adherence to medical ordination is low and for long-time medication it is estimated to be as low as 50 percent. Depending on the prescribed drug this could lead to adverse effects and/or loss of effect of the drug. Information about why a drug is prescribed is important patient information and is thought to help increase compliance with the physician?s prescription. According to results from a recent study of visits to the emergency room at Karolinska Universitetssjukhuset in Solna, Stockholm, medically related problems were the cause in about 30 percent of the cases.

AbstractThis study examines the conclusions made by Roland Paris in his case study of fourteen major post-war reconstruction efforts following the end of the Cold War, and applies them to the current reconstruction process in post-war Iraq. Paris found a common denominator of the fourteen cases ? a belief that a rapid liberalization process, turning war-torn states into liberal market democracies, would foster sustainable peace. Paris calls this belief ?Wilsonianism? after Woodrow Wilson, who was one of the first advocates of it.

With the political situation that prevails in the world, the need for contingency planning for the ecclesiastical heritage has become actualized with the aim of protecting the churches and their assets in war and armed conflicts. In accordance with Kulturmilj?lagen (SFS 1988:950) chapter 4 ? 15a, the Church of Sweden and its organizational parts are responsible for ensuring that contingency plans for the ecclesiastical heritage are established. In the legal statutes, it is not clear how this is to be carried out, who is responsible for all practical aspects or what is to be protected, something that creates gaps of knowledge regarding logistics, roles and selection. This means that there is currently a lack of principles and practice around the protection of the ecclesiastical cultural heritage, as contingency planning for cultural heritage is a fairly new phenomenon that has not been practiced in times of peace.

Akutmottagningar idag får ofta in barn som behöver opereras akut. Personalen på akutmottagningen ställs då inför en situation där de inte hinner informera och förbereda barnet på vad som ska ske. Detta kan skapa en otillräcklighetskänsla hos anestesisjuksköterskorna på operation som därmed får ta hand om ett barn som inte är förberett på vad som kommer att hända. Att skapa förtroende hos barnet är en process som inte kan skyndas på och kräver mycket tid ända från första mötet med barnet. Denna studie vill belysa vad anestesisjuksköterskorna baserar sina val och strategier på i detta möte.

The environmental debate is more intensive than ever before and the demands on companies increase. There are a number of methods to make it easier for the companies to fulfil the demands. Life Cycle Assessment (LCA) end ecodesign are some of the methods that can be used. Syntronic AB has the possibility to reduce the products´ environmental impact in the design phase. Therefore it is important for the company to make it possible to visualize the negative environmental impacts a product can cause in an easy way. It is also important to visualize for there clients if any improvement is possible. The purpose of this thesis is to develop a simplified model.

Today, the catering personnel are an essential part of the safety organization on board Swedish passenger vessels in ferry services. Their responsibilities for the safety on board have increased in connection with the changes in regulations made on the shipping industry. These changes have been mostly related to human factors and structural leadership in the last 25 years.A well-functioning safety organization requires competence and commitment from every individual. Previous researches on Swedish passenger ferries concerning the safety organization have raised issues regarding the catering personnel?s perception of the safety on board.