Surface acoustic waves (SAWs) are mechanical waves that travel along the surface of a material and find many applications in modern technologies due to the ease of excitation on piezoelectric substrates via interdigital transducers (IDTs).

Promotor: C.J. ten Cate, Co-promotor: H.W. Slabbekoorn

Hoe heeft migratie de Ierse en Italiaanse samenleving sinds 1945 beïnvloed?

Professor Dirk Vandewalle is een internationaal veelgevraagde en gerenommeerde Libië-expert. In deze lezing gaat hij in op twee essentiële vragen over de huidige situatie in Libië. Hoe komt het dat het Libische politieke systeem zo fragiel geworden is? En hoeveel hoop is er nog dat Libië als eenheid…

Promotores: C. J. ten Cate; M. A. Ainslie. Co-promotor: W. Slabbekoorn

Promotor: Prof.dr. M.A.G.J. Orrit

Geometric phases lead to a nontrivial interference result when an electron's different quantum mechanical paths choices encircle a magnetic coil in an Aharonov-Bohm experiment.

Promotor: M.A.G.J. Orrit

Hoe kiezen dieren hun partner? Het antwoord is simpel: alles draait om kwaliteit. Willen wij mensen nog wel eens iets aantrekken wat toevallig in de mode is, dieren doen niets zomaar. Achter een mooi verenkleed of een oor¬verdovend brullen zit maar één boodschap: ik ben in topconditie. De evolutionaire…

Viral hemorrhagic fever (VHF) is a group of acute diseases caused by highly infectious viruses including Ebola, Lassa, Dengue viruses. Its high mortality rate poses high risk to public health, however, studies on VHF have been hampered due to the non-availability of proper models and incomplete knowledge…

Anthropogenic noise has been shown to affect marine animals in various ways, this may have fitness consequences at individual and population level. This thesis aims to increase insight into the quantification of sound-induced behavioural responses that are relevant to fitness, and into factors that…

We study the interplay of topology and geometry with chirality for several passive and active systems, employing both analytical and numerical methods.

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

Promotor: J.W. van Holten

Lezing, This Time for Africa!

This thesis investigates the structural evolution and assembly of galaxies since the first few billions years after the big bang.

We prove a p-adic version of the work by Gross and Zagier on the differences between singular moduli by proving a set of conjectures by Giampietro and Darmon, who investigated the factorisation of a rational invariant associated to a pair of CM-points on a genus zero Shimura curve, obtained as the ratio…

Promotor: Prof.dr. M. Ubbink

Promotores: Prof.dr. M. Franx, Prof.dr. P.G. van Dokkum (Yale University)

N-acylethanolamines (NAEs), including N-arachidonoylethanolamine (anandamide, AEA), N-palmitoylethanolamine (PEA) and N-oleoylethanolamine (OEA), are signaling lipids that play an important role in different physiological process.

Promotor: Prof.dr. M. Franx, Co-Promotor: Rychard Bouwens

In human cells, a meter-long DNA is condensed inside a micrometer-sized cell nucleus. Simultaneously, the genetic code must remain accessible for its replication and transcription to functional proteins.

Promotores: Prof.dr. G.F.A Kersten, Prof dr. J.A. Bouwstra

Op 16 december 2021 verdedigde Lisanne van Houten het proefschrift 'Flexing the Slot Regime'. Het promotieonderzoek is begeleid door prof.dr. P. Mendes de Leon en prof. L. Pierallini (Luiss University Of Rome).

A remarkable population of short period transiting rocky exoplanets with equilibrium temperatures on the order of 2,000 K has recently been discovered.

Promotores: Prof.dr. G.F.A. Kersten, W. Jiskoot, Co-promotor: J-P. Amorij

Promotores: Prof.dr. B.R. Katzy, Prof.dr. K. Sailer (Munich University)

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

Fundamental research in the ALgebra, Geometry And Number Theory

Transplantation of labial salivary glands to the eyelids for patients with dry eye appears to give excellent results clinically.

The focus of the described research in this thesis is on the oxidative stress response (Nrf2 pathway). The aim of the research presented in this thesis is to obtain more information concerning microRNAs which are involved in the Nrf2 pathway, to determine and evaluate the application of microRNAs for…

Antibiotic resistance, caused by widespread use of antibiotics, leads to bacterial infections that are difficult, if not impossible, to treat and is a major worldwide health concern.

Human civilization consumes a huge amount of fossil fuels, which has resulted in an atmospheric CO2 level which has not been higher in over 800 millennia.

Promotor: T. Schmidt, Co-promotor: S. J.T. van Noort

Promotor: H.J.A. Röttgering, Co-promotor: M. Haverkorn

Promotor: Prof.dr. B.R. Katzy, Prof.dr. H.J. van den Herik, Prof.dr. G.H. Baltes (University of Applied Sciences Konstanz)

In meta-analysis, heterogeneity often exists between studies. In such cases, it is essential to investigate the sources of heterogeneity and understand the relationship between effect size and study characteristics (i.e., moderators).

In this thesis, deep learning is studied from a statistical perspective. Convergence rates for the worst case risk bounds of neural network estimators are obtained in the classification, density estimation and linear regression model.

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

Business Process Model and Notation (BPMN) has become the standard for business processes diagrams.

We consider the propagation of electrical signals through nerve fibres.

Low-carbon (LE) technologies have a significant potential to reduce the total carbon emissions in China.

We investigate the buildup of galaxies from various vantage points. The first two chapters focus on the stellar content of galaxies, especially the distribution of stellar masses at birth and potential variations therein in various galactic environments.

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

Promotor: P.J.J. Hooykaas, Co-Promotor: E.J. van der Zaal

Empirical Legal Studies in Leiden focust op het bouwen van een interdisciplinaire gemeenschap van rechtsgeleerden en sociale wetenschappers die samen juridische vraagstukken onderzoeken op het snijpunt van recht en gedrag, waarbij diverse soorten methoden worden gebruikt.

Enzymes are innately sensitive to changes in the amino acid sequence, which largely constrains their evolutionary potential, i.e., evolvability. This evolutionary burden can be alleviated in the presence of stabilizing mutations, which increase the buffering capacity of enzymes to tolerate mutations…

Promotores: R. Cramer, A.K. Lenstra, Co-Promotor: B.M.M. de Weger

A modern ship design process is subject to a wide variety of constraints such as safety constraints, regulations, and physical constraints.

Due to their central physiological roles in living organisms, retaining beta-glycosidases have been the subject of tremendous research efforts to examine their structure/function relation using numerous biophysical and biochemical approaches.