As a part of Göteborg Energi?s work towards a smarter electric grid, the company has chosen to investigate the possibilities of automation in their middle voltage grid. In Europe, there are example cases where these technologies already are installed which many articles on the CIRED conference 2011 proved. Netcontrol Oy in Finland has, together with Tekla, created an automated SCADA system that Vattenfall in Finland today uses. The grid mainly consists of 10 kV open loop fed city grid and this automation is mainly designed for this type of grid.

Arbetet behandlar Single Sign-On och två-faktorsautentisering inom hälso- och sjukvården. Syftet med rapporten är att undersöka eventuella utmaningar samt de möjligheter som ges vid införandet av Single Sign-On och två-faktorsautentisering i förhållande till nuvarande autentiseringsmetod. För att besvara rapportens forskningsfråga har kvalitativa forskningsintervjuer tillämpats. Även en enkätundersökning har genomförts för att få användarnas åsikter. Resultatet påvisar att en Single Sign-On tillsammans med två-faktorsautentisering uppfyller de säkerhetskrav som ställs mot hälso- och sjukvården samtidigt som det dagliga arbetet underlättas för vårdpersonalen.

The purpose of this thesis was to help the company Medius AB with optimization of selected parts in an existing system to minimize the execution time by implementing multithreading. The idea was to manipulate the code so that calculations could be executed at the same time. The main work in this thesis consisted of three optimizations. The first one was to reconstruct a big ?for-loop? so it would execute every loop's work in an own thread. The second optimization also was a reconstruct of a ?for-loop? so it could execute the work in different threads. The third and last optimization consisted of reconstructing a stored procedure on the database, so different parts of it each could be executed in an own thread to create data at the same time. To implement the optimizations Visual Basic .NET and its support for multithreading and connection-pools was used. The result of the optimizations meant that one of the modules could be executed more efficiently and it was 12 % faster. The other modules execution time was more efficient by 25 % faster. The meanings and requirements for this thesis are fulfilled by now letting the system make use of its resources in a better way..

Syfte: Uppsatsens syfte är att belysa det förändringsarbete som är genomfört på Sahlgrenska Kirurgen. Fokus i studien ligger på informanternas upplevelse för möjligheten till delaktighet. Det är av intresse för studiens resultat att beskriva hur förändringen genomförts då det finns kopplingar mellan genomförandet och möjligheterna till delaktighet enligt teori.Tidigare forskning/Teori: Valda teorier behandlar delar av teori kring organisatorisk förändring. Forskningen visar det komplexa samspel som en levande organisation innebär. Vidare belyser forskare två olika organisationsutvecklingsstrategier, diagnostiska och dialogiska.

Som en konsekvens av globaliseringen leder förändrade konkurrensvillkor till allt högre krav på dagens organisationer och kompetensen på dess medarbetare. Dessa förändringar har bland annat lett till att färre människor idag vill bli chefer och privat och offentlig sektor hotas av att lida brist på chefskandidater då allt färre människor säger sig vilja göra de uppoffringar som chefskapet innebär.Män har under årtionden dominerat inom de flesta positioner i arbetslivet. Trots att en lika stor andel kvinnor som män idag arbetar, lever dessa traditioner och könsstrukturer till viss mån kvar i moderna företag.Den största delen av alla nyutexaminerade akademiker är idag kvinnor. Många av dessa är till högre grad än män intresserade av att göra karriär. Trots att företagen väntas lida brist på framtida chefskandidater och trots att de flesta som ändå är villiga och utbildade nog till att bli chefer, är kvinnor, tycks det fortfarande vara något som hindrar företagen att rekrytera dessa till toppchefspositionerna.Denna studie belyser de interna faktorer som hindrar svenska företag att rekrytera fler kvinnliga toppchefer.

This research analyzed differences in measurements of magnetic field strength and frequency response in five audio induction loops installed in rooms of wooden construction materials and five audio inductive loops installed in rooms of steel reinforced concrete constructions. The inductive loops were installed at floor level and the measurements were made at the listening height of 1.2m. Measurements of background noise, field strength and frequency response were made at fifteen different measurement points across the room. The research measurements showed that there are differences in field strength and frequency response between these two conditions, whether the audio induction loop is installed in a wooden construction or the audio induction loop is installed in a reinforced concrete construction. The results had a significance level of p=0,05..

The thesis demonstrates a low-cost, low-bandwidth and low-resolution Analog-to- Digital Converter(ADC) in 0.35 um CMOS Process. A second-order Sigma-Delta modulator is used as the basis of the A/D Converter. A Semi-Uniform quantizer is used with the modulator to take advantage of input distributions that are dominated by smaller-amplitude signals e.g. Audio, Voice and Image-sensor signals. A Single-bit feedback topology is used with a multi-bit quantizer in the modulator.

Introduction: Reversal of a temporary loop-ileostomy is the final step after a long treatment for rectalcancer, an event that the patient has been looking forward to for a long time. Studies have shown that patients often have a significant impact on the bowel function after reversal of the stoma.Aim: To describe how the patient experienced the first time at home after reversal of a temporary loop-ileostomy due to rectalcancer. Method: Qualitative semi-structured interviews, with 15-20 patients who have undergone reversal of a temporary loop-ileostomy due to rectal cancer, will be conducted. The interviewes will be analysed using qualitative content analysis according to Graneheim & Lundman (2004). The patients will be recruited from the colorectal unit at Sahlgrenska University hospital/Östra and from the surgical unit at Kungälvs hospital.

The aim of this thesis was to investigate how teachers in school and in leisure time center look at informal and formal learning. Informal learning is often associated with leisure-time while formal learning is generally linked to school. My questions also deal with the teachers? view of each other?s activities from a learning perspective and visibility of informal learning. I have made an empirical study with qualitative, semi-structured interviews with three class teachers and three leisure teachers.

In this study we aim to investigate what employees at a callcenter see as prospects, opportunities and barriers of learning within a company. To answer the purpose of this essay, two questions were formulated; "What opportunities for learning does employees experience in the company?" and "How can learning in the workplace improve for the sellers?". First, we present what previous research has highlighted regarding workplace learning and learning within the callcenter industry. Afterwards we present ten semi-structured interviews with leaders and sellers within a telecom company in Stockholm.

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..

The aim of this research is to find out what environmental impact a wave power park has on the Swedish west coast by creating a consultation paper (?Samrådsunderlag?) for the Lysekilproject at Uppsala University. To highlight the complexity of the problem a system analytic approach was used and illustrated by a Causal Loop Diagram.The overall assessment of the Lysekilprojects wave power park at the Swedish west coast is that it will have a low impact on the environment. This is due to the relative small size of the wave power park and some technical solutions made with the environmental aspect in mind. Artificial reefs and a sanctuary for marine species are effects created by the wave power park and in the longer term the impact will give access to an untapped source of renewable energy, wave energy.

The purpose of this paper is to juxtapose the theories of learning that are reflected in student?s perspectives of the learning log with that of the pedagogical intentions of the curriculum in order to examine the discrepancy between the experienced and the intentional learning objectives. The paper is divided into two sections. The first section is a literature survey on theories related to the learning log and the curriculum. The second part is constituted by three semi-structured group interviews concerning student´s views on the learning log.

Swedish school children exhibit deteriorating knowledge results in terms of reading comprehension. Previous research shows that a method to increase the level of knowledge is the use of evidence-based learning techniques. Test based learning generates what is commonly referred to as a test effect, which proved to strengthen the relationship between learning and memory, as well as being applicable to various test formats. The purpose of this study was to investigate whether test based learning, in terms of learning english words leads to increased performance in a reading comprehension test, more specifically a cloze test. The study was based on a within-group design and was conducted three times over four weeks.

This study means to research the importance and significance of the social and informal learning opportunities offered at a workplace. With Wenger?s theory about social learning and communities of practice as a starting point, this study will create understanding about how teachers at a school comprehend their opportunities for learning within the teacher community. The study is conducted at an independent school in Sweden, and is based on interviews with eight of the teachers employed at the school. The purpose of the study was to research how employees perceive how their social interactions with their colleagues can create learning, and what obstacles they might face along the way.