This dissertation is an experimental study of laser-generated, atmospheric pressure, transient toroidal helium plasmas.

The theoretical explanation of cosmic acceleration is nowadays one of the biggest puzzles in cosmology.

The study of orchid flowers, fruits, and inflorescences is crucial due to the remarkable diversity of orchid species and their unique adaptations to pollinators and seed dispersers. However, our understanding of the evolution and development of these organs within the orchid family remains limited.

Promotores: Prof.dr. J.N. Kok, Prof.dr. M.R.V. Chaudron (Chalmers Univ., Sweden)

Promotor: Carel J. ten Cate, Co-Promotor: Hans W. Slabbekoorn

In times of hardships or crisis, local people know how to deal with it using their resourcefulness. Although efforts are sometimes made by the government to help them, they are fully aware that community support is at least equally important.

Heterogeneous catalysis is essential to many industrial applications. These catalysts are often comprised of supported nanoparticles, which contain various different surface sites.

Promotores: T.H.W. Bäck, A. Plaat, Co-promotor: F.J. Verbeek

Bacteria have the ability to alter their morphology in order to adapt to changing environments.

Mechanical metamaterials are carefully engineered materials whose properties are controlled by their structure, not by their composition, which allows using metamaterials to study and control physical effects in detail⁠.

The focus of the dissertation

Op 28 oktober 2021 verdedigde Hein van der Bruggen zijn proefschrift en behaalde daarmee de doctorstitel.

Promotor: Prof. dr. Arnold Tukker & Prof. dr. René Kemp (Maastricht University)

In this thesis, we present new laboratory data of interstellar dust analogues.

Global Environmental Extensions Multi-Regional Input-Output (EE-MRIO) analysis is often used to analyze how changes in global and national demand for products lead to socioeconomic and environmental impacts at the national level.

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

This thesis explores the theoretical and observational properties of distant massive galaxies that harbour active black holes in their centres and shine brightly at radio wavelengths.

Promotor: Prof.dr. J.M. van Ruitenbeek, Prof.dr. R.M. Tromp

This thesis consists of two main parts. The first part (Chapters 2 and 3) deals with a class of Markov process called Quasi-Skipfree (QSF) processes.

In this thesis, we use low-frequency and high-frequency radio observations to address the following questions regarding quasars: is the radio loud/quiet quasar dichotomy real?

A complex community of microbes develops in the infant gut shortly after birth. We call this community the infant gut microbiota. The microbiota influences the health of the infant, which makes the composition and function of the infant gut microbiota an important topic to study.

Promotores: Prof.dr. E.F. van Dishoeck, Prof.dr. C.P. Dullemond

Advanced UHF MRI techniques provide powerful tools for studying the zebrafish brain, an emerging model in neurological research. In this work, various MRI and localized MRS methods are optimized and employed for UHF strength for studying the zebrafish brain.

M. Danhof, Co-promotores: J. Freijer, A. Yassen

Promotor: Prof.dr. P.G.L Klinkhamer, Co-promotor: K. Vrieling

Promotor: P.G.L. Klinkhamer, Co-Promotores: K. Vrieling, P.P.J. Mulder

Promotor: S.M. Verduyn Lunel, Co-promotor: S.C. Hille

This thesis involves three topics: benchmarking discrete optimization algorithms, empirical analyses of evolutionary computation, and automatic algorithm configuration.

Promotores: Prof.dr. H.P. Spaink & Prof.dr. P.C.W. Hogendoorn Co-promotor: Dr. M.J.M. Schaaf

Op 7 december 2021 verdedigde Georgina Kuipers het proefschrift 'Beschadigd vertrouwen'. Het promotieonderzoek is begeleid door prof.mr. W. den Ouden en prof.dr. M.A. van der Steen (EUR).

This thesis studies the geometry of representation varieties and character stacks. These are spaces parametrizing the representations of a finitely generated group, typically the fundamental group of a compact manifold, into an algebraic group G.

Promotor: Prof.dr. J. den Hertog

Dr. Helen Pluut heeft een artikel gepubliceerd in het gerenommeerde tijdschrift Organizational Behavior and Human Decision Processes (OBHDP). Dit in samenwerking met Remus Ilies (National University of Singapore), Petru Curşeu (Open Universiteit en Babeş-Bolyai University) en Yukun Liu (University of…

Plant-microbe interaction resulted in different physio/chemical responses by host plant and interacting rhizobacteria.

Nowadays, it is well known that hydrogen and helium (and small traces of lithium and beryllium) were created shortly after the Big Bang, while the heavier elements are created in the cores of stars at different evolutionary stages. When these stars explode as supernovae, they expel metals synthesised…

Promotores: T.H. Oosterkamp, N. de Jonge

Promotor: Promotor: W.Th.F. den Hollander, Co-promotor: V. Sidoravicius.

This PhD-thesis presents a study on micron-sized particles, so-called colloids. By controlling the chemical and physical properties of these particles, such as the interparticle interaction and the particles’ shape, colloids can act as building blocks that self-assembly into larger structures.

Stochastic resetting is simple enough to be approached analytically, yet modifies stochastic processes in a non-trivial way.

Promotor: Prof.dr. P. Stevenhagen

Promotor: J.G.E.M. Fraaije, Co-Promotor: A. Kros

Plants and their pollinators form complex interaction networks. Within these networks, species differ widely in the number of species they interact with.

Neurodegenerative diseases, including Parkinson’s disease (PD), are increasing in prevalence due to the aging population. Despite extensive study, these diseases are still not fully understood and the lack of personalised treatment options that can target the cause of the diseases, rather than the symptoms,…

Until the 1990s, the only known planets were those in our Solar System. Three decades later, several thousand exoplanets have been discovered orbiting stars other than the Sun, and substantial efforts have been made to explore these strange new worlds through spectroscopic analyses of their atmosphe…

Promotor: Jan van der Greef; Co-promotors: Mei Wang; Eduard van Wijk

Promotor: Prof.dr. M. Ubbink

Promotores: Prof.dr. G. Miley & Prof.dr. J.M. van den Broek

The sequence-dependence of biomolecular interactions involving nucleic acids and proteins is essential for numerous processes inside the cell. Insights into the underlying molecular mechanisms have been obtained using various biochemical and biophysical methods on two different levels — bulk and sin…

We explored the Universe using weak gravitational lensing, a phenomenon that occurs when light from distant galaxies is bent by the gravitational fields of closer cosmic objects, much like how a lens distorts light.

Promotor: A. Kros