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We have successfully embedded a metal gate in-between two resonant tunneling double barrier heterostructures (RTD), thus realizing a three dimensional resonant tunneling transistor. The gate is placed 30 nm above and 100 below the two RTD's, respectively. The asymmetric gate allows for a unique control of the current-voltage characteristics, not only controlling the peak current but also the peak
This thesis investigates the role of migration in international trade within the framework of behind-the-border trade barriers and firm behavior. In addition to the introduction, which provides a context to the analysis, it consists of four essays. The first essay, titled ‘Migration as Trade Facilitation? Investigating the Links Between International Trade and Migration,’ examines the cross-countr
This contribution describes some basic features of the procedure relating to the recognition of foreign administrative decisions under Swedish law. After some comments on the general legal and theoretical framework relating to administrative decisions in Swedish law, the article discusses the preconditions for service of documents, including international aspects. The subsequent section discusses
Based on high-resolution spectra obtained with the MIKE spectrograph on the Magellan telescopes we present detailed elemental abundances for 64 red giant stars in the inner and outer Galactic disk. For the inner disk sample (4-7 kpc from the Galactic centre) we find that stars with both thin and thick disk abundance patterns are present while for Galactocentric distances beyond 10 kpc, we only fin
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Lumen diameter, distension and intima-media thickness (IMT) in human arteries are important parameters in cardiovascular research. The signal reflected from the arterial wall strongly depends on the ultrasound scanner and settings. The signal also varies with age and health of the subject. A general method insensitive with respect to the subject and the scanner would be of great help. We have deve
Abstract in Danish I et kursus med 12 studerende i 3 tropiske lande og 36 internationale studerende i Danmark arbejdede de studerende virtuelt sammen i grupper med deltagere i både Danmark og i udlandet. De studerende opnåede samme faglige udbytte som ved tidligere kursusgange med studerende kun i Danmark, men lærte mere om projektsamarbejde per distance og forskellige præsentationsformer. Der var
This report studies the interplay between the use of paper and of information and communication technology (ICT). The aim is to explore how these two products/services can be compared from an environmental point of view. Similarities, differences and functions of ICT and paper are analysed in order to address the question: what are the environmental implications from substituting the use of paper
When adapting environments for the physically disabled, it is important to encourage and activate not only the person concerned, but also other people involved or affected. A computer aided planning tool has been developed to support the participation of all persons involved, as well as supporting the planner’s (e.g. an occupational therapist) design of the environment. The prototype development a
In this study we aimed at defining genes that are controlled by Early B-cell Factor (EBF), that could explain the severe block in B-cell development observed in EBF-/- mice. The fact that EBF appears to be important for the transcriptional control of genes encoding proteins in the pre-B and B-cell receptor complex implied to us that EBF could be a common regulator of other components in the pre-B
