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.

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.

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.

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.

Abstract Students' questions play an important role in both teaching and learning science. However, in a traditional classroom, the teacher is the center of attention and poses questions to which students answer. The students seldom ask questions to which the teacher responds. The purpose of this paper is to examine teachers' attitudes towards student questions. This paper will also explore teachers? views on the issues related to students? questions for science education.

I sjukvården världen över tas dagligen tusentals röntgenbilder. Användningsområdena är många, men i de flesta fall är syftet att i något avseende avgöra patientens hälsa. Bilderna utvärderas av läkare för att patienten ska få rätt diagnos. För att läkaren ska kunna göra en korrekt bedömning av bilden och därmed ge patienten den behandling som situationen kräver måste bilden vara rättvisande och vara av sådan kvalitet att alla viktiga detaljer går att urskilja. Bildkvalitet är ett ganska diffust begrepp och ofta används subjektiva bedömningsmetoder för att bestämma ifall en bild är bra eller dålig.

Vilken kunskap krävs för att en lärare skall kunna undervisa ett innehåll på ett sätt så att eleverna både inspireras och förstår? Denna uppsats studerar elevers upplevelser av ett specifikt fenomen, dvs. lärares ämnesdidaktiska kunskap. Många forskare har försökt att besvara denna komplexa fråga. Shulman (1986, 1987) myntade begreppet Pedagogical Content Knowledge (PCK).

This paper is a thorough review of my internship, during which I designed infographics at Grafiskt Center, SVT, Stockholm. The purpose has been to find out what guidelines and policies SVT has regarding infographics while producing infographics in a professional environment. In addition, I present the daily routine at SVT and the tools used during the work process. Furthermore, the paper contains a reflection of my work effort during the internship as well as thoughts on how I adjusted to the guidelines in question. Finally, the essay treats some examples of infographics which I produced during my time at SVT..

En modern grafikprocessor är oerhört kraftfull och har en prestanda som potentiellt sett är många gånger högre än för en modern mikroprocessor. I takt med att grafikprocessorn blivit alltmer programmerbar har det blivit möjligt att använda den för beräkningstunga tillämpningar utanför dess normala användningsområde. Inom det här arbetet utreds vilka möjligheter och begränsningar som uppstår vid användandet av grafikprocessorer för generell programmering. Arbetet inriktas främst mot signal- och bildbehandlingstillämpningar men mycket av principerna är tillämpliga även inom andra områden.Ett ramverk för bildbehandling implementeras och några algoritmer inom bildanalys realiseras och utvärderas, bland annat stereoseende och beräkning av optiskt flöde. Resultaten visar på att vissa tillämpningar kan uppvisa en avsevärd prestandaökning i en grafikprocessor jämfört med i en mikroprocessor men att andra tillämpningar kan vara ineffektiva eller mycket svåra att implementera..

This paper is a thorough review of my internship, during which I designed infographics at Grafiskt Center, SVT, Stockholm. The purpose has been to find out what guidelines and policies SVT has regarding infographics while producing infographics in a professional environment. In addition, I present the daily routine at SVT and the tools used during the work process. Furthermore, the paper contains a reflection of my work effort during the internship as well as thoughts on how I adjusted to the guidelines in question. Finally, the essay treats some examples of infographics which I produced during my time at SVT..

The aim of our master thesis is first and foremost to win the competition One Prize - mowing to Growing: Reinventing the American Lawn, announced in USA by the organization Terreform 1, the first of December 2009. Apart from winning the competition we have also tried to reach a deeper understanding of food production today and its future possibilities. Our ambition to present a winning design proposal has to a large extent decided the structure of the entire thesis. Our completed and submitted design proposal - growforgold.org - is a way of addressing urban food production in a creative way, keeping the sovereignty of the individual in mind. Instead of presenting a place-specific design solution our proposal aims to create incentives and possibilities for urban farming to take place anywhere and anytime. Our submission to the competition represents both a tool and a platform which, put in practice, could make landscape architecture happen through the hands of the individual.

This study reviews outdoor educational activity, its contents and qualities, whose basis rests on reform educators as Dewey and Freire. These pedagogues? methodology is based on the interaction between theory and practice, reflection and action. It appears from previous research that: Nature has beneficial effects on human health; Physical activity has positive effects on schoolchildren's health and on their test scores in mathematics and swedish. Training in outdoor education for teachers has contributed to outdoor education having become part of elementary schools´ activities.The purpose of this study is to find out to what extent a School of Nature is useful for three primary school teachers´ activities.

This research explains and describes the role music notations may play in an unconventional way. The aim of this research is to show that by balancing composition, interpretation and improvisation, the performer(s) could produce or open the door to a reservoir of new sounds, which could emerge through a composer?s awareness of the need to balance these elements. That act of balancing depends on the musician?s interpretation through their interaction with the music notation, with their action process on the instrument and each other.

This essay considers the new prison in Kalmar, which was built 1852 and replaced the former prison in the castle of Kalmar. In the forts the conditions were awful and the interms lived together in large rooms. With the new reform that took place in Sweden, with the so-called Philadelphiasystem, the concept was to isolate the prisoner one by one in smaller rooms. The idea was to give them a religious ground so they could get themselves a self-reflection and a conscience. It was a new system for the personnel to control the internals and the order in prison..

The concentration of acute phase proteins in serum is altered as a response to inflammation, infection or trauma. this makes these proteins potential biomarkers of unspecific pathological processes. In cattle, haptoglobin and serum amyloid A are the two acute phase proteins that show the largest increase in serum concentration as a result of inflammatory processes. The haptoglobin concentration has been shown to correlate to clinical signs as well as inflammatory processes found at post mortem examination. This feature could be useful prognosis of the individual as well as for monitoring the health status of a herd or identifying carcasses that shold be examined closer at the slaughter-house.