Promotor: J.N. Kok, Co-Promotor: A.J. Knobbe

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In this thesis, we extend the concept of null models as canonical ensembles of multi-graphs with given constraints and present new metrics able to characterize real-world layered systems based on their correlation patterns.

Systems with local constraints is a new finding in recent researches on complex systems. The heterogeneous spatial interactions and the temporal dependencies among those numerous units make it difficult to describe by traditional statistical physics.

The thesis addresses the long-term dynamical evolution of hierarchical multiple systems.

For many system in statistical physics the microcanonical and canonical ensemble are equivalent in the thermodynamic limit, but not for all.

According to the amyloid cascade hypothesis, accumulation of beta-amyloid (Aβ) peptides initiates the pathological cascade in Alzheimer's disease (AD).

Promotor: C. W. J. Beenakker, Co-promotor: J. K. Asboth

Stars like the sun are born in large molecular clouds existing from gas and dust. During the formation process, the chemical composition of the material can be altered drastically by the changing physical conditions.

In this thesis, a system pharmacology approach, integrating metabolomics, pharmacology and chemical biology, was applied to understand and modulate the endocannabinoid system across different model systems (cells, zebrafish, mice and humans).

Promotor: S.M. Verduyn Lunel

Dynamical systems describe the evolution of objects in a space over time and may be used to model physical phenomena. Due to this, much research is dedicated to understanding the mathematics of dynamical systems.

Systems are called real-time systems, if the correctness of the system does not only depend on the correctness of the system output but also on whether the output is delivered on time.

Het doel van het onderzoeksprogramma Systems Pharmacology ligt in de ontwikkeling van strategieën voor gepersonaliseerde geneesmiddelen en de ontwikkeling van nieuwe systeemgebaseerde benaderingen in de translationele en klinische farmacologie.

Adenosine is an endogenous ligand which exerts its action by activating adenosine receptors (ARs), while its circulating levels are controlled via a variety of mechanism and proteins, amongst others the equilibrative nucleoside transporters (ENTs).

This thesis tackles the difficulty of predicting the liver’s clinical response to novel therapies, a challenge arising from interspecies differences and limitations of existing in vitro models.

Promotor: A. Doelman, Co-promotores: P.J.A. van Heijster; A. Zagaris

Promotors: W. Jiskoot; G.J. Witkamp, Co-promotor: M.R. Nejadnik

Promotor: Arjen Doelman, Co-promotor: Vivi Rottschäfer

In this thesis, we show that we can use Shimura’s CM theory to explicitly compute the Hilbert class field of any primitive quartic CM field.

Search and conversational systems have become central to how people access information and perform tasks.

We have studied the impact of particle shape anisotropy, multivalent interactions and flexibility on systems of micron-sized colloidal particles.

This thesis describes the genetic and prokaryotic diversity of giant barrel sponges.

This thesis provides explicit expressions for the density functions of absolutely continuous invariant measures for general families of interval maps, that include random maps and infinite measure transformations, not necessarily number systems.

Het onderzoek van dit programma is gecentreerd rond dynamische systemen, functionele analyse en hun interactie.

Promotor: A. Doelman, Co-promotor: J.D.M. Rademacher

Het Computer Systems, Imagery & Media (CSI) onderzoeksprogramma voert fundamenteel onderzoek uit naar methoden en technieken voor het ontwerp, de implementatie en de applicatie van geavanceerde computersystemen.

This thesis studies operator-algebraic aspects of subproduct systems, a generalization of product systems of Hilbert spaces.

In condensed matter systems electron-electron interactions, negligible in everyday metals, can dramatically alter the electronic behavior of the system. Examples of such altered behavior include high-temperature superconductivity and modulation of the electron density.

Thermodynamics is one of the founding scientific pillars that has helped us better understand heat engines, biology, ecosystems, and even black holes. While it fundamentally describes large systems by examining the bulk behavior of their constituents, it is anchored in the statistical equivalence of…

Protein–protein complexes are formed via transient states called encounter complexes that greatly influence the formation of the stereospecific complex.

In this thesis, we have studied the potential of the zebrafish larval model in studying the ECS, as a complementary model to the existing rodent models.

Promotor: J. van der Greef, T. Hankemeier; Co-promotor: H.A. van Wietmarschen

This thesis seeks to combine two different research topics; Multi-Objective Optimization and Complex Network Analysis.

Discovery and development of Central Nervous System (CNS) drugs is hampered by high attrition rates.

Organisms often need to adapt more efficiently and devise new strategies for surviving difficult ecological circumstances.

Promotor: Prof.dr. M. Ubbink

Promotor: S.M. Verduyn Lunel, Co-promotoren: M.F.E. de Jeu, S.D. Silvestrov

Promotor: J. van der Greef; Co-promotor: E. van Wijk, M. Wang

Promotores: Prof.dr. M. Danhof, Prof.dr. D.R. Stanski

Cardiovascular diseases are the primary cause of death in the world with atherosclerosis as primary underlying cause.

Lipsius, Cleveringaplaats 1, 2311 BD, Leiden

All crested and marbled newts (the genus Triturus) suffer from an unusual genetic abnormality, called a balanced lethal system, that kills exactly half of their offspring. How can a trait so disadvantageous have survived millions of years of natural selection?

Promotor: G.F.A. Kersten, W. Jiskoot, Co-promotor: B. Metz

Promotor: Peter Stevenhagen

Promotor: Prof.dr. S.F. Portegies Zwart

Healthcare Information Systems (HIS) are essential for modern healthcare delivery, yet their development faces significant challenges including heterogeneous data formats, regulatory compliance, and the growing demand for AI-driven decision support.

This thesis describes the use of an activity-based proteomics method to study the endocannabinoid system.

Promotores: W. Jiskoot, F. Ossendorp