It is well known that dielectrics with the reconstruction of zone structure (Pb1-xSnxTe, for example) have two-dimensional layers with a specific electron properties. A corresponding relativistic model has been discussed, in particular, by B.A. Volkov and O.A. Pankratov (1985). The general nature of the effect under consideration can be demonstrated by in a simple model setting, and the aim here i

Despite the considerable import of both response probability and response time for testing models of choice there is a dearth of chronometric studies of time- and space-order effects in discrimination of paired visual stimuli. In this study, systematic asymmetries in discriminating the brightness of paired visual stimuli are examined by way of binary response probability scaled in terms of log-odd

The presented thesis work is concerned with the study of molecular dynamics using liquid nuclear magnetic resonance (NMR) spectroscopy. Spin relaxation dispersion experiments in the rotating frame (R1ρ) are employed to provide a detailed, atomic-resolution view of protein dynamics. Comprehensive investigations of 15N backbone and 13C methyl side-chain conformational exchange in the FK506 binding p

In Statoil, understanding and managing risk is today considered a core value. This principle has been duly integrated in the organization, and is inscribed in steering documents as well as in a booklet handed out to all employees, describing core values, corporate governance, the operating model and corporate policies. The company has developed a sophisticated approach to ERM that centers on the p

A critical assessment of a widely applied approach for the prediction of temperature-insensitive absorption lines is presented. This approach was found to suffer from significant shortcomings.

In this paper the problems of organization and representation of concept knowledge are addressed from an autonomous agent perspective. The first part of the paper discusses the question of why an autonomous agent needs concepts at all and what other uses it can make of them. After the necessary and/or desirable functions of concepts have been identified, previous attempts to represent concepts are

Olsson and his collaborators have proposed an extension of Belief Revision Theory where an epistemic state is modeled as a triple S=⟨K,E,A⟩ , where A is a research agenda, i.e. a set of research questions. Contraction and expansion apply to states, and affect the agenda. We propose an alternative characterization of the problem of agenda updating, where research questions are viewed as blueprints

Popular Abstract in Swedish En av tre svenskar drabbas av cancer. Hälften av de som behandlas för sin cancer får strålbehandling som en del av sin behandling. Teknikutvecklingen gör att strålbehandling kan levereras på mer och mer avancerade sätt. Det är dock svårt att veta vilka patienter som verkligen gynnas av behandling med en avancerad teknik och i så fall med vilken typ av avancerad teknik. Radiotherapy is one of the major tools for treating cancer. Through research and technical development radiotherapy is becoming more advanced with new treatment techniques emerging. In the work presented in this thesis, well-known methods have been used, or modified for use, and new methods have been introduced in order to optimise the clinical use of an advanced radiotherapy treatment technique,

The aim of this article is to increase the understanding of how institutional forces and organizational context, in parallel with cognitive issues, impact knowledge sharing within multinational corporations (MNCs). Furthermore, the aim is to elaborate on differences between industries by comparing and contrasting a retail firm with a manufacturing firm. The focus is on IKEA and SCA Packaging and t

The pathophysiologic mechanisms in type 1 diabetes (T1DM) involve loss of islet β-cell secretory function caused by selective killing of these cells primarily by aggressive autoimmune responses involving both cellular and humoral immune pathways. Inflammatory cells heavily infiltrate pancreatic islets leading to insulitis where CD8+ T lymphocytes are thought to be responsible for selective and spec

We report on preliminary results from time-resolved optical spectroscopy of the He-rich variable white dwarf GD 358.