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Visar resultat 1 - 5 av 49 uppsatser som matchar ovanstående sökkriterier.
1. Change in uptake and transfer of zinc in the food chain when predatory fish disappear from the system
Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : There is a widespread distribution of possibly toxic heavy metals, such as zinc, in aquatic ecosystems. Simultaneously aquatic food webs are changing due to declining predatory fish stocks. LÄS MER
2. Mathematical modelling of microvascular oxygen transport and the impact of blood pressure
Master-uppsats, Linköpings universitet/Institutionen för medicinsk teknikSammanfattning : Cardiovascular diseases are the most common cause of death worldwide. There are known risk factorsfor cardiovascular diseases, such as high blood pressure, and it is also known that cardiovasculardiseases are associated with both the macrocirculation and the microcirculation. LÄS MER
3. Parameter Update Schemes for Hidden Markov Models applied to Financial Returns
Master-uppsats, Lunds universitet/Matematisk statistikSammanfattning : This thesis was dedicated to investigating the use of different parameter update schemes for Hidden Markov models with time-varying parameters, with an emphasis on developing alternatives to the quasi-Newton step. The focus was on applications to financial returns, using data from the S\&P-500 and the Nikkei index, and for comparison, a trial using synthetic data was also performed. LÄS MER
4. The combination of SFDI with a mathematical model links perturbation in microcirculation to early stages of sepsis
Master-uppsats, Linköpings universitet/Institutionen för medicinsk teknikSammanfattning : The microcirculation system is crucial for the function of delivering biological markers such as oxygen and removing carbon dioxide from all the cells forming the complex ma- trix of tissue in the body. To keep up with the demands of each and every cell, there is a response from the microvasculature - resulting from for instance changes in blood flow to the tissue area. LÄS MER
5. Physics-informed Neural Networks for Biopharma Applications
Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysikSammanfattning : Physics-Informed Neural Networks (PINNs) are hybrid models that incorporate differential equations into the training of neural networks, with the aim of bringing the best of both worlds. This project used a mathematical model describing a Continuous Stirred-Tank Reactor (CSTR), to test two possible applications of PINNs. LÄS MER