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…

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

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

Complex Organic Molecules (COMs) have been detected in objects across different stages of stellar evolution.

Promotores: T. Hankemeier; R. Berger, Co-promotor: R.J. Vreeken

This research delves into the unique cultural approach of the Tenggerese people, an Indigenous community in East Java, Indonesia, regarding elderly care. It focuses on their traditional practices of bakti (‘filial piety’) and sayan (‘mutual aid’), deeply ingrained in the community's lifestyle and va…

Marietje Beemsterboer verdedigde haar proefschrift op 12 juni 2018.

In this thesis we explore machine and deep learning approaches that address keychallenges in high dimensional problem areas and also in improving accuracy in wellknown problems. In high dimensional contexts, we have focused on computational fluid dynamics (CFD) simulations.

Producing green energy has become the main goal in our society in the search of reducing or eliminating the carbon emission from fossil fuels.

Optical projection tomography (OPT) is a tomographic 3D imaging technique used for specimens in the millimetre scale.

Materials with strongly correlated electrons show some of the most mysterious and exotic phases of quantum matter, such as unconventional superconductivity, quantum criticality and strange metal phase.

One of the key quests in astronomy is to study the growth and evolution of galaxies across cosmic time. Radio observations provide a powerful means of studying the formation of stars and subsequent buildup of distant galaxies, in a way that is unbiased by the presence of dust.

Promotor: Prof.dr. H.J.A. Rottgering

This dissertation consists of two parts, each of which considers a different research area related to random interval maps. In the first part we are interested in random interval maps that are critically intermittent.

In this thesis, I targeted the orchid genus Lepanthes, one of the six genera of angiosperms that surpasses 1,000 species in the Neotropics, as a study model to investigate the evolutionary processes that promoted species diversifications.

Promotores: P.G.L. Klinkhamer, P.M. Brakefield, Co-Promotor: M. Bruinsma

In the first part of this thesis we study the geometry of folding patterns.

What physics controls the properties of quantum matter, such as how electrons flow inside high-temperature superconductors? This question has captivated the physics community and industry for decades, in part due to the great technological potential such materials have, but also because they have resisted…

Plants produce an astonishing variety of secondary metabolites (SMs) which are thought to play vital roles in the fitness of plants through ecological interactions.

Promotor: S.J. Edixhoven, Co-promotor: R.S. de Jong

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

Promotor: G.R. de Snoo, W. Kustiawan, Co-promotor: H.H. de Iongh

Religion, Philosophy, and the Pre-modern World

African oral literatures, new media and technologies: challenges for research and documentation

What holds people together and what makes them willing to fit within larger political structures? Our project examines this question in the practices of dynastic rulership in Eurasia ca. 1300-1800.

Promotor: R. Tijdeman, Co-promotor: C. Kraaikamp

In this thesis we push the boundaries of high-resolution imaging at radio frequencies between 100 and 200 MHz. Using the International LOFAR Telescope that spans across Europe we achieve sub-arcsecond angular resolution.

In this thesis we study the moduli space of genus g curves, and the differential forms that occur naturally on this moduli space.

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

Promotor: H.J.A. Rottgering, Co-Promotor: R.J. van Weeren

The thesis describes experimental steps towards reduction of friction on the macroscopic scale by scenarios of thermo- and superlubricity well-known on the nanoscale.

In this dissertation, we study partition-based models that can be used both for interpretable predictive modeling and for understanding data via interpretable patterns.

Bekijk contactgegevens en ondersteuningsinformatie voor de MSc International Organisation aan Universiteit Leiden, zoals programma‑vragen en hulp via het Admissions Office.

Na het afronden van de bacheloropleiding volgen verreweg de meeste studenten de masteropleiding.

Onlangs verscheen onder redactie van Luc Verhey en Gert Jan Geertjes een bundel over de constitutionele conventie bij Boom juridische uitgevers.

Op 23 juni 2019 verdedigde Zygimantas Juska zijn proefschrift 'The Role of Collective Redress Actions to Achieve Full Compensation for Violations of European Union Competition Law'. Het promotieonderzoek is begeleid door promotor prof. dr. T.R Ottervanger.

In maart 2021 verscheen het boek ‘Bestuursbesluiten” onder redactie van prof. mr. Matthijs de Jongh, prof. mr. Bastiaan Kemp. prof. mr. Harold Koster en prof. mr. Kid Schwarz.