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Bioactive calcium phosphate coatings on zirconia ceramics

Author(s): Martin Štefanič (Author), Tomaž Kosmač (Supervisor), Kristoffer Krnel (Co-Supervisor)

Year: 2013

Type: Doctoral dissertation

This doctoral thesis describes the synthesis and characterization of calcium phosphate (CaP) coatings on zirconia ceramics. The main application of coated zirconia is in medicine, particularly in the area of dental bone implants. Due to the favourable biological characteristics of CaP, it can be expected that the application of CaP …

Femtosecond relaxation dynamics in collective-electronic-state materials: cuprate and iron-pnictide superconductors and charge-density wave systems

Author(s): Ljupka Stojčevska (Author), Tomaž Mertelj (Supervisor), Dragan Mihailović (Co-Supervisor)

Year: 2013

Type: Doctoral dissertation

This thesis covers a study of the photoexcited relaxation dynamics in superconducting ironbased pnictides, cuprates and charge-density wave systems by means of femtosecond laser spectroscopy. To examine the temperature and fluence dependence of photoinduced reflectivity transients ΔR/R in iron-based pnictides and cuprates, we apply a standard double pump-probe technique, while …

CO2 dynamics in a river system: mass balance, hydrological, geochemical and biochemical impacts

Author(s): Saša Zavadlav (Author), Sonja Lojen (Supervisor)

Year: 2013

Type: Doctoral dissertation

A 3-year systematic investigation (2007–2010) of water chemistry using conventional and stable isotope tracers helped us delineate hydro-biogeochemical processes in the karstic Krka River watershed. By mineralogical and stable isotopic examination of tufa deposits and combining the results with water chemistry, we were able to evaluate the suitability of tufa …

Detection of anomalous and suspicious behavior patterns from spatio-temporal agent traces

Author(s): Boštjan Kaluža (Author), Matjaž Gams (Supervisor), Mitja Luštrek (Co-Supervisor)

Year: 2013

Type: Doctoral dissertation

Many applications, including smart environments, surveillance, human-robot interaction, and ambient assisted living, involve the problem of learning patterns of agent behavior from sensor data. Deviant behavior is a pattern in the data that either does not conform to the expected behavior, that is, anomalous behavior, or matches previously defined unwanted …

Spectroscopic characterization of conformations of short alanine peptides, poly-L-lysine and insulin during formation of amyloid fibrils

Author(s): Andreja Mirtič (Author), Jože Grdadolnik (Supervisor)

Year: 2013

Type: Doctoral dissertation

The process of protein folding describes the transition by which an unordered polypeptide chain attains its functional native three-dimensional structure. A detailed understanding of the principles which govern the protein folding, such as conformational preferences of amino acid residues, the neighbour residue effect and the solvent effects, remains an important …

Organic geochemistry of stratified eutrophic alpine lakes (Lake Bled)

Author(s): Marinka Gams Petrišič (Author), Nives Ogrinc (Supervisor)

Year: 2013

Type: Doctoral dissertation

The identification and quantification of organic compounds present in the environment is a major area of application in modern analytical chemistry. However, it is still scarcely recognized that, in addition to the chemical identity and concentration of organic compounds, there is more information to be found about their source and …

Development of SiC-based composite material for fusion application

Author(s): Aljaž Iveković (Author), Saša Novak Krmpotič (Supervisor)

Year: 2013

Type: Doctoral dissertation

Nuclear fusion offers a prospect of a safe, economical and environmentally friendly source of energy. For the advanced concepts of nuclear fusion, SiC-based fibre reinforced composites were proposed as a structural material for the first wall of the reactor vessel, enabling higher operating temperatures and efficiencies. Already developed techniques for …

Mercury exposure assessment in the Slovenian population

Author(s): Ana Miklavčič (Author), Milena Horvat (Supervisor)

Year: 2013

Type: Doctoral dissertation

Mercury (Hg) is one of the most toxic metals. Its toxicity depends on the route of exposure, on its chemical form and the dose to which a person is exposed. The most susceptible population are pregnant women and children. Epidemiological studies suggest neuropsychological dysfunctions in children who were prenatally exposed …

Sintering and phase transition behaviour of sodium niobate

Author(s): Jurij Koruza (Author), Barbara Malič (Supervisor), Tadej Rojac (Co-Supervisor)

Year: 2013

Type: Doctoral dissertation

Sodium niobate (NaNbO3) is the end member of several alkaline niobate-based solid solutions, which represent an important group of environment-friendly lead-free piezoceramics. Even though alkaline niobates are of considerable technological importance, problems in obtaining high densities and a fine-grained microstructure are still reported and not much is known about the …

Heterogeneous nucleation of iron oxide (γ-Fe2O3) in colloidal systems

Author(s): Darinka Primc (Author), Darja Lisjak (Supervisor)

Year: 2013

Type: Doctoral dissertation

Presented work is a study of magnetic iron oxide (referred to as spinel) coating synthesis. The coatings were synthesized on the surfaces of selected core nanoparticles with heterogeneous nucleation during the co-precipitation of the Fe3+/Fe2+ ions. The work is divided into three parts. The first part comprise the synthesis of …