Search for dissertations about: "slime"

Showing result 1 - 5 of 6 swedish dissertations containing the word slime.

  2. 1. Reinforcement in Biology : Stochastic models of group formation and network construction

    Author : Qi Ma; David Sumpter; Edward Codling; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; reinforcement in biology; merge and split model; preferential attachment; reinforced random walk; network construction; shortest path problem; transport networks; ant algorithm; slime mould; physarum polycephalum; speed-accuracy tradeoff.; Mathematics with specialization in Applied Mathematics; Matematik med inriktning mot tillämpad matematik;

    Abstract : Empirical studies show that similar patterns emerge from a large number of different biological systems. For example, the group size distributions of several fish species and house sparrows all follow power law distributions with an exponential truncation. READ MORE

  4. 2. Mathematical modelling approach to collective decision-making

    Author : Natalia Zabzina; Denis Gaidashev; Torbjörn Lundh; Uppsala universitet; []
    Keywords : collective behaviour; collective decision-making; communication mechanisms; positive feedback; mathematical modelling; bifurcation phenomena; steady state solutions; symmetry breaking; symmetry restoring; diffusion-limited aggregation; fractal dimension;

    Abstract : In everyday situations individuals make decisions. For example, a tourist usually chooses a crowded or recommended restaurant to have dinner. Perhaps it is an individual decision, but the observed pattern of decision-making is a collective phenomenon. READ MORE

  5. 3. The Art of Modelling Oscillations and Feedback across Biological Scales

    Author : Linnéa Gyllingberg; David J. T. Sumpter; Helen Byrne; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; mathematical biology; mathematical modelling; oscillations; feedback mechanisms; dynamical systems; individual-based models; complex systems; Tillämpad matematik och statistik; Applied Mathematics and Statistics;

    Abstract : This thesis consists of four papers in the field of mathematical biology. All papers aim to advance our understanding of biological systems through the development and application of innovative mathematical models. READ MORE

  6. 4. Antibiotics in patients on chemotherapy; aspects on pharmacokinetic and pharmacodynamic interactions with antineoplastic drugs

    Author : Anna Nyhlén; Sektion III; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; antibiotics; neutropenic; antineoplastic agents; pharmacokinetics; pharmacodynamics; PAE; interactions; synergy; Microbiology; bacteriology; virology; mycology; Mikrobiologi; bakteriologi; mykologi; virologi;

    Abstract : The aims of these studies were to investigate the pharmacokinetics of two beta-lactam antibiotics in patients with fever and cytostatic-induced neutropenia and the influence of cytostatic-induced gastrointestinal damage on the absorption of co-trimoxazole. Furthermore to study the pharmacodynamic interactions between antibiotics and antineoplastic drugs and the impact of antineoplastic drugs on the intestinal microflora. READ MORE

  7. 5. Process water geochemistry and interactions with magnetite at the Kiirunavaara iron mine, northern Sweden

    Author : Magnus Westerstrand; Lars Lövgren; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Applied Geology; Tillämpad geologi;

    Abstract : Current global estimates indicate that ca. 2400 million tonnes of iron is produced annually, most of which is used to make steel. Due to the associated costs, environmental challenges and energy consumption, steel is one of the world’s most intensively recycled materials. For example, about 98 % of structural steel is recycled in the USA. READ MORE