Search results

Density functional calculations have been used to compare various geometric, electronic and functional properties of iron and cobalt porphyrin (Por) and corrin (Cor) species. The investigation is focussed on octahedral MII/III complexes (where M is the metal) with two axial imidazole ligands (as a model of b and c type cytochromes) or with one imidazole and one methyl ligand (as a model of methylc

The diffusion of water vapour through pulp and paper was investigated experimentally in a diffusion cell. The diffusion cell consisted of two chambers differing in relative humidity. Any given sample was placed as a barrier between the two chambers. Two pulp qualities and eleven paper grades were included in the investigation. The diffusivities measured ranged from 2.1-10(-8) m2/s to 5.4.10(-6) m2

The developments in molecularly imprinted polymer (MIP)-based capillary electrochromatography (CEC) achieved during the past years are reviewed in this article. The MIP is prepared using a templated polymerization reaction and results in a material with a high selectivity towards a predetermined target. The selectivity of the MIP is comparable to that of the biological antibodies, however, the MIP

We have studied the epitaxial growth and electrical performance of Al-free, GaAs-based, resonant tunnelling diodes (RTDs) including thin barriers of GaInP, GO, or GaAsxP1-x. n-Type tunnelling diodes have been fabricated and the symmetry in the current-voltage (I-V) characteristics, as well as the peak-to-valley ratios, are found to be sensitive probes for the inter-face quality in the heterostruct

[abstract missing]

This paper presents a novel way to analyze the organization of public hospitals by applying the property rights approach to organizations (PRA) to the problem. It is proposed that while PRA is suitable for the analysis of all hospitals it is especially so for public hospitals.The analysis explores issues concerning privatization and integration of public hospital services. The findings are general

This paper presents a fully integrated downlink for low-cost remote antenna units in fiber-fed distributed multi-antenna systems. To reduce the cost of optical parts, an intermediate frequency(IF) signal is distributed over the fiber, and the circuit consists of an optical receiver, a single side-band frequency up-converting radio transmitter, and LO generation circuitry. The optical to electrical

In this thesis, I have focused on five main research areas: 1). A new type of imprinted polymer has been developed, namely the amide MIP. The amide functional monomers showed better hydrogen bonding capabilities in polar organic solvents and the resulting polymers exhibited good enantiomeric recognition properties in organic media. Furthermore, by using the amide monomers instead of the carboxyl m

The aim of this work was to study alterations in the matrix composition of human articular cartilage in different stages of osteoarthritis and to isolate and characterize one of the proteins that is altered in the osteoarthritic process. The metabolism of articular cartilage in different stages of osteoarthritis including early asymptomatic OA was monitored in a culture system of metabolically lab

Designed to meet the diverse needs of therapists, this book presents a new approach to rehabilitation that integrates ergonomics concepts to address the wide range of problems commonly encountered by professionals. The first section addresses general concepts such as anthropometry and tissue mechanics. The next section explores whole body biomechanics, demonstrating the ergonomic effects of physio

ESA's Gaia mission will observe huge numbers of binaries with a largerange of periods. The present contribution presents results from somelarge-scale simulations, based on a simplified population synthesismodel Galaxy consisting mostly of binaries. The results are 'typical'solution-numbers and -types, for stellar samples at different distancesfrom the sun. As in previous studies, there are marked