Radio Frequency Identification, RFID, is a convenient way to enable contactless identification which does not require any physical nor optical contact. As with any radio-based communication the signal can be intercepted, thus making the technology vulnerable to several kinds of attacks. Interception of communication is not the only threat. Since RFID tags might contain personal information or information that will grant the owner access to secure areas, skimming and spoofing attacks are also major threats against this technology. In this thesis report,  the perspective of an adversary is portrayed in an RFID-enabled environment by presenting where RFID is used and how it could be abused.

Tidigare empirisk forskning förevisade samband mellan optimism och hälsa, likaså mellan self-efficacy och hälsa. Föreliggande undersöknings syfte var att utifrån könsskillnader mellan kvinnor och män undersöka hur op­timism och self-efficacy samverkar med deras självskattade hälsotillstånd. Deltagarna var 190 högskolestudenter, varav 113 kvinnor, i Mellansverige. Statis­tisk analys utfördes genom t-test, multipel linjär regressionsanalys och jämförelse mellan korrelationskoefficienter. Mätinstrumenten Life Orientation Test?Revised, General Health Questionnaire och General Self-efficacy Scale, samt ett påstående om fysisk hälsa användes.

As an increasingly rationalized forestry and agriculture have human interference in the form of tradition, grazing and use declined. There is a strong link between biodiversity and disturbance of the landscape. In sandy soils many insects and plants require exposed sand to survive while the disorder may contribute to seed dispersal in the woodlands. On behalf of O-Ringen Skåne 2014, a study of the interference from orienteering in sandy soil and the forest during competitions conducted. The aim is to clarify the interference of which orienteering runners contributes, through to inventory presence before and after the competitions in the bottom and field layer in three locations.

About 10 % of the adult women population in Sweden are treated annually for urinary tract infections. The increasing bacterial resistance towards antibiotics is classified by WHO (World Health Organization) and ECDC (European Centre for Disease Prevention and Control) as one of the greatest treats for human health in a global perspective. To find alternatives scientists are studying the possibility to use probiotics to reduce the frequency of recurring urinary tract infections. This literature study examines five randomized double blinded placebo controlled studies where different strains of Lactobacillus have been used as a prophylactic to women suffering from recurrent urinary tract infections and bacterial vaginosis. Overall the studies do not display enough promising results to recommend the use of probiotics as a prophylax or cure..

AbstractThe debate on grammar has been on the agenda for thousands of years. Several different arguments and theories have been used in order to explain the importance of grammar in school. Some newer arguments have been added, while others have stayed, either in their original version, or in a modernised one.This essay aims to clarify the role grammar play in school. In order to do that we have looked into its history, the curriculum, modern research and interviews made with active teachers.The results of the literary studies, the studies of the curriculum and the field studies show that the very presence of grammar in school is disputed. The curriculum of today speaks of an orientation in language, with grammar as a part of it, based on the students? own language.

Aim:The aim of this study is to examine similarities and differences in eating habits in students ages 16-19 in high school.Questions:How do eating habits differ between adolescent athletes and non-athletes?What significance does living conditions and religious background have on the eating habits of adolescents? Method: This study is of a quantitative approach using survey questions.The method used was questionnaires. Three schools participated in the study. The school provided programs with and without athletic orientation. My purpose was to give out 200 surveys but in the end the total of handed out surveys landed on 141.

The aim of this master thesis is to create an understanding of what it can be like to grow older as a homosexual man in Sweden today. The study has an intersectional and queer theoretical approach and is based on eight in depth interviews with men who are aged between 68 and 82 years old. In the analysis I deal with the problem of how sexuality can be inter- preted with the experience of aging. Central to the analysis is the criticism of norms connected to age, sexuality, social- and family life and gay culture.The results show that the norm-breaking sexual orientation of the men affects their life path in terms of how to organize social life, where friends often replace the traditional family. New ways of forming relationships and living their lives imply other obligations rather than the traditional for significant others, which was shown to influence the expectations and outcome of old age in terms of care and support.

In the year of 2001, China launched their new international marketing strategy Going Global. As an effect of this, the frequency of Chinese establishments in Sweden has increased heavily in the last ten years. One of the larger Chinese establishments in Sweden happened in 2003, by the telecom company Huawei. This essay illustrates the obstacles that a Chinese company faces when setting up their business on the Swedish market. Previous studies have focused on Swedish establishment abroad.

This thesis describes new methods for automatic crack detection in pavements. Cracks in pavements can be used as an early indication for the need of reparation.Automatic crack detection is preferable compared to manual inventory; the repeatability can be better, the inventory can be done at a higher speed and can be done without interruption of the traffic.The automatic and semi-automatic crack detection systems that exist today use Image Analysis methods. There are today powerful methods available in the area of Computer Vision. These methods work in higher dimensions with greater complexity and generate measures of local signal properties, while Image Analyses methods for crack detection use morphological operations on binary images.Methods for digitalizing video data on VHS-cassettes and stitching images from nearby frames have been developed.Four methods for crack detection have been evaluated, and two of them have been used to form a crack detection and classification program implemented in the calculation program Matlab.One image set was used during the implementation and another image set was used for validation. The crack detection system did perform correct detection on 99.2 percent when analysing the images which were used during implementation.

I denna uppsats betraktas två olika bandspridningstekniker och vilken påverkan de har på telekrigsförmågan. Uppsatsen svarar på frågan:Vilka möjligheter finns att bedriva signalspaning och störning mot radiokommunikation som använder bandspridningsteknikerna frekvenshopp eller direktsekvens?Inledningsvis beskrivs en modell för telekrig mot radiokommunikation, ?telekrigcykeln?. Därefter beskrivs principer för ett radiosystem samt de två bandspridningsteknikerna frekvenshopp och direktsekvens. Slutligen analyseras bandspridningsteknikernas påverkan med hjälp av telekrigcykeln och resultaten diskuteras.Uppsatsen kommer fram till att båda signalerna går att spana mot, direktsekvens innebär större svårigheter för signalspaningen än frekvenshopp.

Tidigare empirisk forskning förevisade samband mellan optimism och hälsa, likaså mellan self-efficacy och hälsa. Föreliggande undersöknings syfte var att utifrån könsskillnader mellan kvinnor och män undersöka hur op­timism och self-efficacy samverkar med deras självskattade hälsotillstånd. Deltagarna var 190 högskolestudenter, varav 113 kvinnor, i Mellansverige. Statis­tisk analys utfördes genom t-test, multipel linjär regressionsanalys och jämförelse mellan korrelationskoefficienter. Mätinstrumenten Life Orientation Test?Revised, General Health Questionnaire och General Self-efficacy Scale, samt ett påstående om fysisk hälsa användes.

Aim: The aim of this study was to study through papers if early intervention of children and adolescents with deaf-blindness can be facilitated through early intervention programs, cochlear implants (CI) and communication strategies.Method: The method that we used was a literature study of scientific articles through Pubmed and Cinahl databases. The articles reference lists were also studied which lead to that more papers were found.Results: Children and adolescents with deaf-blindness can benefit from early intervention programs, when their caregivers were educated to give appropriate response to the children?s behavior. The interaction between children and their caregivers can improve through an early intervention model. Children and adolescents with Deafblindness have variable results from CI.

En av Glimek AB:s mest förekommande maskiner är SD-180 som används för degavvägning. Den finns i flera olika varianter. Den enklaste har enbart start- och stoppknapp och en potentiometer för att ställa hastigheten och en mer avancerad variant har en operatörspanel där olika möjligheter till inställningar finns.Konstruktionen på denna maskin hade inte uppdaterats på många år och behövde en uppdatering av användargränssnitt, programvara och elkonstruktion. Arbetet har framförallt koncentrerat sig på användargränssnittet till panelen.En del av arbetet var att undersöka om det var möjligt att utesluta PLC ur konstruktionen och använda en mer avancerad programmerbar frekvensomformare. Eftersom det blev problem med lanseringen av programvara till frekvensomformaren och enbart en mindre bra fungerande demoversion fanns tillgänglig så var detta tyvärr inte möjligt.I arbetet har olika varianter på operatörspaneler utretts.

AbstractEssay in political science, C-level, by Line Säll, spring semester 2007.Tutor: Susan Marton.?To do things by the rule of law -A study in the discretion of front-line bureaucrats?This essay has it´s starting-point in the theoretical problem of social science to unite democracy and bureaucracy. The purpose is to illustrate the problems with the discretion of front-line bureaucrats in a democratic state. The theoretical approach is front-line bureaucracy-theory. Certain characteristics of the work of street-level bureaucrats makes it impossible to severly reduce discretion.

The structural rationalization of rural firms in Sweden has led to many new creative ways of developing companies. The agriculture sector is characterized by the need of capital in form of buildings, labor and inventory. The rationalization process has led to free capacity in rural firms when new technology make buildings and inventory not longer necessary for the production process. To get a better cost coverage this free capacity can be used to start-up new business areas that help the rural firm to growth.The study aims to identify factors that motives entrepreneurs in rural firms to develop new business areas. The purpose is also to analyze driving forces that lies behind development of rural firms and the forces that support or not support development in rural firms.The study is built upon five cases that all can be categorized as firms with different size and orientation.