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Non-radiative decay of core excitations at the B 1s and N 1s absorption edges of bulk hexagonal boron nitride (h-BN) has been studied with resonant Auger spectroscopy. In order to reproduce the bulk properties of the sample while keeping it electrically conducting, we have grown reasonably thick (more than 20nm) polycrystalline films of h-BN on a Ni(111) surface by thermal cracking of borazine vap

Concentration of nutrients and balance between nutrients in trees can affect tree vitality, and are dependent on soil conditions and atmospheric deposition. The aim of this investigation was to survey the concentration of nutrients in beech bark and to look for relationships with the frost sensitivity of the bark. Beech trees with bark lesions were compared to undamaged beech trees on five experim

This article discusses A-licensing and case from a minimalist perspective, pursuing the idea that argument NPs cyclically enter a number of A-relations, rather than just a single one, resulting in event-licensing, case-licensing and phi-licensing. While argument case commonly reflects Voice/v-relations, canonical A-movement is driven by higher elements, either in the C-T system or in a superordina

Scanning tunneling microscopy (STM) studies of monolayer of metal-free phthalocyanine (H2Pc) adsorbed on Au(111) have shown ordered arrangement of the molecules on the surface. Evaporation of H2Pc onto the Au(111) surface and post annealing of the sample to 670 K results in a densely packed structure of the molecules. The monolayer is characterized by molecules adsorbed with the molecular plane pa

Pb2+ complexes can attain several different topologies, depending of the shape of the Pb 6s6p lone pair. In this paper, we study structures with a bisdirected Pb lone pair with quantum mechanics (DFT) and QM/MM calculations. We study small symmetric Pb2+ models to see what factors are needed to get a bisdirected lone pair. Two important mechanisms have been found: First, the repulsion of the lone

The early medieval cult of saints has been the object of many illuminating studies during the past decades. However, one aspect in need of more research is the role of the cults in the building of early states in Europe, a phenomenon that is often, somewhat erroneously, referred to as the cult of national saints. The saints were powerful assets in the attempts of kings, dukes and bishops at achiev

This thesis concerns the analysis of anthropogenic substances of the compound class known as persistent organic pollutants (POPs). Sample preparation perspectives for the analysis of POPs in the environmental matrices water, soils and sediments are presented. This thesis features reasonably cheap and uncomplicated methodology capable of fast screening of POPs. It displays how quantitative extract

A hybrid ventilation system including sewage heat recovery for low energy buildings has been investigated using TRNSYS. Energy from solar collectors is used in combination with the heat recovered from the sewage system to preheat the ventilation air and the cold water for domestic use. Results show that the new system renders a possibility to use natural ventilation in passive houses and zero ener

Many modern office buildings have highly glazed facades. Their energy efficiency and indoor climate is, however, being questioned. Therefore more and more of these buildings are being built with double skin facades, which can provide: a thermal buffer zone, energy savings, wind protection with open windows, fire protection, aesthetics, solar preheating of ventilation air, sound protection, polluta