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The Value of Contrast Administration in the MRI Evaluation of Scoliosis in Pediatric Population.

The aim of this study was to analyze the added utility of contrast administration for spine MRI in children with scoliosis. A retrospective review of 663 consecutive contrast-enhanced spine MRI performed in 319 patients as part of the work up of scoliosis in children 2-18 years with clinically suspected or known scoliosis over a seven year period. Those patients with known tumors (13 patients) bei

Magnetotransport Studies of Mn Ion-Implanted Nanowires

Popular Abstract in Swedish Den pågående trenden att alltmer digital information skapas och lagras av ett ständigt ökande antal människor över hela världen driver på den formidabla utveckling vi idag ser av elektroniska apparater som t.ex. läsplattor, bärbara datorer och smartphones. För att möjliggöra en fortsatt utveckling i samma takt, krävs tillgång till nya typer av halvledarkomponenter och kThis thesis focuses on the magnetotransport properties of highly Mn-doped crystalline GaAs nanowires. The GaAs nanowires were first grown by metal-organic vapor phase epitaxy from gold seed particles, and subsequently implanted with Mn ions under varying conditions, e.g., ion fluence and acceleration voltage. The implantation process was carefully analyzed and optimized within the research project

850/900/1800/1900MHz Quad-Band CMOS Medium Power Amplifier

This paper presents a two-stage quad-band CMOS RF power amplifier. The power amplifier is fabricated in a 0.25 mum CMOS process. The measured 1-dB compression point between 800 and 900 MHz is 15 dBm plusmn 0.2 dB with maximum 18% PAE, and between 1800 and 1900MHz is 17.5dBm plusmn 0.7dB with maximum 17% PAE. The measured gains in the two bands are 23.6 dB plusmn 0.7 dB and 13 dB plusmn 2.1 dB, res

Managing end user requirements in construction projects

Purpose The research presented is the initial part of a project with the aim of increasing the use of end-user requirement through out the construction process. This initial part maps how Swedish real estate companies manage end-user requirements and evaluate the outcome. Methodological approach The focus of the study was on methods for capturing and managing end-user requirements and for measur