Sociala nätverk tar stor plats på Internet genom virtuella communities. Användare har en större möjlighet att nå dem via mobila lösningar och därmed göra dem till mobila communities. Kriterierna som ligger till grund för framgång för virtuella communitiesvill vi applicera på mobila communities. För att undersöka dessa kriterier, och bakomliggande faktorer, har vi valt att titta på ?tidigt bruk? användning av en mobil community, Facebooks mobila portal med hjälp av Technology Acceptance Model (TAM).

Syfte: Huvudsyftet med uppsatsen är att undersöka ett företags givna transportstrukturs miljöpåverkan i växthusemissioner eller CO2e. Detta genom att med hjälp av olika verktyg och teorier ta fram ett antal scenarion som har en lägre miljöpåverkan än befintlig transportstruktur. Det sekundära syftet är att ta fram modeller som hjälper företaget att ta hänsyn till de ekonomiska kostnader som kan vara kopplade till en omstrukturering av transportstrukturen.Metod: Kvalitativa intervjuer om grön logistik och vilka verktyg som används i detta arbete samt en kvantitativ datainsamling i beräkningar av emissioner med hjälp av NTMCalc.Slutsatser: Ett antal olika scenarion togs fram där miljöpåverkan uppskattades, utifrån dessa valdes 5 stycken ut som hade en lägre miljöpåverkan än befintlig transportstruktur. I dessa utvalda scenarion tas hänsyn till ytterligare faktorer som exempelvis ledtider, hur många landsgränser som måste korsas, tätortskörning etc. Då det inte finns ett ekonomiskt underlag för vad ett transportstrukturbyte skulle kosta förs det en diskussion med rekommendationer över åtgärder vid ett byte av transport..

This paper aims to examine whether there are any substantial differences between a generation of users born during the 1960?s and younger generation born during the 1990?s regarding the use of digital technologies connected to the Internet. Based on Marc Prensky?s theories on people born before and after 1980 saying those born before are not as natural when it comes to using digital technologies. We used diaries as a qualitative method to gather data from 16 respondents.

Regulation of rivers by dams and reservoirs is a good example where anthropogenic impact could be considerable both in the local environment, but also has major implications upstream and downstream. This study was accomplished as a literature study of the river Nile, which is extremely important for water supply. The purpose of this study was to investigate the consequences of the construction of the Aswan High Dam, to obtain a consistent flow for water supply, irrigation and power generation in Egypt. Since Egypt has a very hot and dry climate large amounts of water in reservoir is lost to the Nubian aquifer system and by evaporation. The consequences from constructing the dam are considerable.

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.

ABSTRAKTBakgrund: Interhospitala transporter innebär ökade risker för medicinska komplikationer för den kritiskt sjuka patienten. Inom ramen för intensivvårdsjuksköterskans kompetens ingår att kunna utföra omvårdnad till den kritiskt sjuka patienten under interhospitala transporter. Sjuksköterskor med specialistutbildning inom intensivvård kan under transport av kritiskt sjuka patienter uppleva oro. För att kunna förbättra omhändertagandet av patienten är det av intresse att ta reda på om det finns fler perspektiv och upplevelser av arbetet vid denna komplexa situation som en interhospital intensivvårdstransport innebär.Syfte: Syftet med denna studie var att beskriva intensivvårdssjuksköterskors upplevelse av att vårda kritiskt sjuka patienter under markbundna interhospitala transporter.Design: Denna studie har en kvalitativ design.Metod: Semi-strukturerade intervjuer med åtta intensivvårdssjuksköterskor spelades in och transkriberades för att sedan analyseras med tematiskt analys.Resultat: Ur analysen konstruerades tre huvudteman. Att sträva efter att ha kontroll över situationen, Betydelsen av ett bra samarbetet i teamet och Att utmanas i sin yrkeskompetens.Slutsats: Resultatet visade att transportera kritiskt sjuka patienter mellan sjukhus kan ge upphov till både negativa och positiva känslor.

Entrepreneurship is said to be the missing link between knowledge and growth in the Swedish economy. New ventures run a high risk of failing and this holds true especially for technology ventures. Since company leaders have proven to exert an influence on organisations' survival possibilities, the selection of an appropriate CEO is important. The purpose of this study is to describe the importance of the CEO for ventures as well as to explain how knowledge and experience affect the opinion of who should be CEO. Using a qualitative case study research design including three life science companies, we show that there are three main factors crucial when selecting a CEO.

Most companies and organizations today depend on technology connected to the Internet. Schools and offices have therefore been providing computers, phones and other technology to the employees. The recent technological development and decline in prices for technology have contributed to making these products a part of everyday life for most people. This has made it very common for employees and students to bring their own devices into school and workplaces.The aim of this study is to define what "Bring your own device" means for Swedish companies and organizations and how it has been implemented in those. The aim is not mainly to generalize to all Swedish companies but create an understanding how the trend is used to provide a basis for continued research in this area.

Current technology offers many possibilities for remotecommunication. Nevertheless, people with cognitive and communicativedisabilities have limited access to common communication technology like textmessaging via a mobile phone. This study is part of the project Text messagingwith picture symbols - a possibility for AAC users and people with cognitiveimpairments. Semi structured interviews were used to investigate three menand four women?s experiences of using Windows mobiles with adaptedfunctions for text messaging.

Distributed system development is a common occurrence in today?s technological and global world. Because the consequences of its geographically distributed nature it creates barriers between people that affects their communication and collaboration efforts in the distributed context. Despite a lot of technological breakthroughs over the last decades and the occurrence of video-conference applications and other tools for communication and collaboration, cultural and geographical issues have so far not yet been completely resolved. In this study I have made a literature study over distributed system development to form a set of central factors that affects the distributed development process.

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.

By using industrialized building, pre-installed modules can be delivered to the construction site where they are easily mounted. This method has many advantages compared to on-site manufacturing, for example, the precision during the production process should be much higher than building each wall and floor on site. Furthermore, the quick erection procedure when using prefabricated elements and the possibility to use weather protection has the advantage of not being dependent on weather conditions, and many other factors.Masonite Beams AB is a Swedish company (a member of the Norwegian company, Byggma ASA) with a relatively new technology using light weight beams as bearing elements in the walls and a certain stiff board lamella slap which is mounted on the top of the floor structure creating an integrated stiff beam / board floor structure. The elements are flat which make it much easier to transport the elements from the factory to the building site where the building parts are easily mounted with special mounting stud.One of the main drawbacks of lightweight structure is the sound transmission. The main topic is low frequency annoyance, however the complex structural elements and their mutual sensitive connections other acoustical problems might appear.

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.

Active headsets have been on the market for years and now it is time for something else to enter the stage. The technology of active noise reduction can for exmple also be used in ventilation systems for reducing ventilation noise. An active control system principally consists of four important components, namely the downstream error microphone, the upstream detection or reference microphone, the digital signal processor (DSP) and a loudspeaker. The upstream reference microphone listen to the primary ventilation noise and sends it to the DSP which makes a phase shift to the signal and sends it to the loudspeaker. The loudspeaker sends out the opposite waveform of the incoming one and reduce the primary ventilation noise.

This thesis examines history of the subject of mechatronics and innovation. The main reason tostudy mechatronics from a historical point of view is that it has never been done to a greater extent before. An overview is justified because various definitions have been used over the decades, but nowadays the subject has become more established. Focus in this thesis is mainly on development of the subject of mechatronics at Royal Institute of Technology in Stockholm. Innovation is the other aspect of this thesis.