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Oxy-fuel combustion is one of the proposed technologies with the potential to achieve zero CO2 emission. La1−xCaxCo1−yFeyO3−δ (LCCF) perovskites are promising materials with high selectively for oxygen. In this study, the oxygen non-stoichiometry of perovskites LCCF was investigated by means of iodometric titration. LCCF was prepared using the liquid citrate method, and the phase structures were i
Single crystals of LaSeTe2 have been prepared by reaction of the elements in a LiCl/RbCl flux at 970 K for seven days. Satellite reflections observed in diffraction experiments indicate the presence of an incommensurate lattice distortion, which is of the charge-density-wave (CDW) type. The modulated structure has been solved from X-ray data at 173, 293, and 373 K. LaSeTe2 crystallizes in the 3+1-
This article reports the result of a survey designed to investigate the degree of uncertainty by which a representative sample of Swedish households hold their perceptions and expectations of inflation. The public displays hardly any uncertainty concerning the direction of change of the price level as measured by the ratio of ‘don’t know’ answers. However, when asked for numerical estimates of theThis article reports the result of a survey designed to investigate the degree of uncertainty by which a representative sample of Swedish households hold their perceptions and expectations of inflation. The public displays hardly any uncertainty concerning the direction of change of the price level as measured by the ratio of ‘don’t know’ answers. However, when asked for numerical estimates of the
Deep brain stimulation of the globus pallidus internus has been recently shown to alleviate parkinsonian symptoms and levodopa-induced dyskinesias. However, its exact mechanisms of action are unclear. Pallidal neurones are connected via various pathways to the dopaminergic nigrostriatal system. In the present study we investigated the hypothesis that deep brain stimulation of the entopeduncular nu
The predominant way of modelling mortality rates is the Lee–Carter model and its many extensions. The Lee–Carter model and its many extensions use a latent process to forecast. These models are estimated using a two-step procedure that causes an inconsistent view on the latent variable. This paper considers identifiability issues of these models from a perspective that acknowledges the latent vari
Respiratory complex I of plant mitochondria has to date been investigated with respect to physiological function, biochemical properties and molecular structure. In the respiratory chain complex I is the major entry gate for low potential electrons from matrix NADH, reducing ubiquinone and utilizing the released energy to pump protons across the inner membrane. Plant complex I is active against a
The literature in the Strategic Entrepreneurship (SE) is increasingly embracingthe concept and implications of knowledge spillovers. In this paper, we add to thetheoretical repertoire on SE and knowledge spillovers by investigating the types ofknowledge spillovers and what they imply for various dimensions of SE. On the one hand,we distinguish between spatial and aspatial knowledge spillovers. On
Drawing from Swedish press history in the eighteenth and nineteenth centuries, the present article argues for further historical investigation into three aspects of Jürgen Habermas’ theory of the public sphere. The first concerns actual media participation, the second the representative features of media institutions, and the third media systems. These routes of analysis can and should be combined
Appreciation and production of musical rhythm is a human universal and, as with other human capacities, it is imperative to understand the extent of our capacity to perceive and produce rhythm. This thesis presents my work on the cognitive and perceptual aspects of rhythm perception and production at a slow tempi. In Paper I I establish that rhythm production, such as keeping the beat to a metron
The aim of the study was to investigate the role of clinical experience in the acquisition of professional competence during education and training in nursing. Competence is given a relational interpretation. The acquisition of professional competence is considered in terms both of the subject area involved and of cultural and organizational aspects specific to the nursing profession and to nursin
Two groups of organisms dominate the decomposition in soil: fungi and bacteria. One of the most important parameters to optimise for any organism is its growth, and thus a direct way to study the effect of environmental factors on fungi and bacteria in soil is to measure their growth rate. However, methodological constraints have historically prevented this direct approach in soil. Using leucine/t
Two frameworks are proposed for extremum seeking of general nonlinear plants based on a sampled-data control law, within which a broad class of nonlinear programming methods is accommodated. It is established that under some generic assumptions, semi-global practical convergence to a global extremum can be achieved. In the case where the extremum seeking algorithm satisfies a stronger asymptotic s
Popular Abstract in Swedish I vårt dagliga liv kommer vi i kontakt med en rad produkter som tillverkas av arbetare som riskerar att drabbas av sjukdomar till följd av sin arbetsmiljö. De organiska syraanhydriderna är industriellt vanligt förekommande kemikalier. Två av dessa anhydrider har studerats i denna avhandling, nämligen hexahydroftalsyra anhydrid (HHPA) och methylhexahydroftalsyra anhydridThe aim of this thesis was to describe the metabolism and to develope methods for biological monitoring for two organic acid anhydrides (OAAs), namely hexahydrophthalic anhydride (HHPA) and methylhexa-hydrophthalic anhydride (MHHPA). The OAAs are reactive, low molecular weight chemicals used in vast quantities in the industry. Many OAAs, including HHPA and MHHPA, are potent IgE sensitisers inducin
In this presentation, I discuss critical friend sessions (see Handal 1999), performed during autumn 2014 and spring 2015, and focusing on lecturers educating the same group of teacher students. The aim was to investigate whether or not one could find traces of didactics in their teaching, since a didactic dimension is necessary when educating students at a teacher education program. The lecturers
The improvements in GPU hardware, including hardware-accelerated ray tracing, and the push for fully dynamic realistic-looking video games, has been driving more research in the use of ray tracing in real-time applications. The work described in this thesis covers multiple aspects such as optimisations, adapting existing offline methods to real-time constraints, and adding effects which were hard
The study of the production of nuclei and antinuclei in pp collisions has proven to be a powerful tool to investigate the formation mechanism of loosely bound states in high-energy hadronic collisions. In this paper, the production of protons, deuterons and 3He and their charge conjugates at midrapidity is studied as a function of the charged-particle multiplicity in inelastic pp collisions at s=5
Sediments from the only permanent lake on the island of Jan Mayen (71°N, 08°30′W), Lake Nordlaguna (NL), were investigated. The lake, with an area of ∼1 km2, is situated at the foot of the world's northernmost active subaerial volcano and is separated from the sea by a 150–240 m wide beach barrier, which reaches 4–5 m above sea level. Most of the lake is deeper than 25 m, with the deepest part bei
We present an angle-resolved photoemission spectroscopy study of the single-layer T∗-type structured cuprate SmLa1-xSrxCuO4 with unique fivefold pyramidal oxygen coordination. Upon varying oxygen content, T∗-SmLa1-xSrxCuO4 evolved from a Mott-insulating to a metallic state where the Luttinger sum rule breaks down under the assumption of a large holelike Fermi surface. This is in contrast with the
