Promotor: Robert Tijdeman, Co-promotor: Cornelis Kraaikamp

In this thesis, rational points on K3 surfaces are studied. In the first part of Chapter 1 the Brauer group and the the Brauer-Manin obstruction are introduced.

Microbiome composition of the spermosphere and the rhizosphere of wild and modern bean accessions grown in an agricultural and a native soil from Colombia was characterized by metagenomics and cultivation-dependent approaches.

Plants are colonized by an astounding number of microorganisms that can provide different life-support functions, including nutrient acquisition and protection against (a)biotic stresses like drought or pathogen attack.

This thesis consists of three papers that are centered around the common theme of Hausdorff uo-Lebesgue topologies and convergence structures on vector lattices and on vector lattices and vector lattice algebras of order bounded operators.

The research described in this thesis has, using the zebrafish as a model system, shed new light on the intricate relationship between TB and DM2, in particular on the role of leptin, SHP-1 and glucocorticoids.

Promotor: Prof.dr. E. Bouwman, Co-Promotor: S. Bonnet

Welke rol spelen ouder-kind interacties bij het ontstaan, in stand houden en de behandeling van depressieve klachten van jongeren?

Het programma Kennismakers van Sleutelstad ging op reportage bij het Levend Lab. Ze spraken met Martina Vijver en Danielle van der Burg over de onderzoeken die in het buitenlaboratorium gedaan worden.

Essays schrijven, beursaanvragen aanscherpen of een nieuwe cursus samenstellen: ChatGPT helpt studenten en onderzoekers erbij. Wat dat betekent voor de wetenschap, was onderwerp van gesprek tijdens de vierde Psychology Connected.

‘Heel interessant’, vinden twee bachelorstudenten van de verhalen van Liesbeth van Vliet en Niki Antypa tijdens de Psychology Science Day. Toefje op de taart zijn de posterpresentaties over de bachelorsscripties, bewonderd en becommentarieerd door wetenschappers en medestudenten. Ook docenten en postdocs…

This ecological community has long been known to affect host biology, and their diverse roles have been further clarified in recent years following numerous studies of animal:microbiota interactions in diverse systems.

Voltammetry plays a crucial role in modern scientific research by offering valuable insights into the electrochemical properties of materials, with wide-ranging applications in fields such as materials science, energy storage, corrosion studies, and sensor development.

Promotoren: R. Tijdeman, A.K. Lenstra, Co-promotor: H.J.J. te Riele

In this thesis, the role of plant-mediated soil legacy effects in shaping aboveground plant-insect interactions was investigated.

Heterogeneous catalysis is one of the fundamental processes of modern life, being common in industrial refinery and hydrogen vehicles, all the way to the living cell. The dissociation of H2 on Cu(111) is an important benchmark system for studying heterogeneous catalysis, with a large and varied amount…

Promotor: Prof.dr. G.R. de Snoo, Co-promotor: R. Heijungs

D1.2 reports on the findings of an analysis of framework conditions relevant in the context of the data economy from a legal, a socio-economic and a technological perspective. The analysis is a key foundation for the creation of an initial, heuristic model of the European data economy. The deliverable…

D2.2 comprises the in-depth legal analysis of the initial heuristic model, focused on addressing, in more detail, the main legal concerns for data reusers in the European data economy. This detailed analysis of the legal propositions presented in D2.1 is supplemented by an analysis of the technological,…

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

In surface science there is great effort to move from studying simple, flat model surfaces in vacuum to investigating more complex model catalysts in gas environments (in situ). This thesis gives three examples of such studies using microscopy and spectroscopy.

In recent decades, climate change has led to more frequent and severe drought events, causing serious consequences such as increased forest mortality and significant crop yield losses. Understanding how drought affects plants, especially economically important herbaceous species, is crucial for predicting…

M.T.M. Koper, Co-promotor: D.G.H. Hetterscheid

Promotor: M.T.M. Koper, Co-Promotor: L.B.F. Juurlink

Make more fluid: In condensed matter systems, electrons can acquire unusual properties from their interaction with the atomic lattice.

De nieuwe SSH-labs bieden grote kansen voor experimenteel onderzoek voor FSW- en FGW-wetenschappers. De labs worden een inspirerende plek, niet alleen door de state-of-the-art apparatuur, maar ook door het contact met collega’s uit andere disciplines.

Promotores: W.J.G.M. Peijnenburg, G.R. de Snoo, Co-promotor: M.G. Vijver

Glycosidases are important enzymes in the turnover of polysaccharides and glycoconjugates, and are involved in a range of human pathologies including genetic disorders such as Gaucher and Pompe disease, but also in various cancers.

Freshwater biodiversity has been threatened by eutrophication due to excessive nutrients in the environment. Releasing the freshwater species from such pressures requires efforts from industry and manufacturers to avoid emissions to vulnerable and high-risk regions.

Diamanto Fragkiadaki is de eerste studente die de nieuwe masterspecialisatie School Psychology heeft afgerond. Ze begon een jaar geleden aan de masteropleiding en ontving op woensdag 20 september haar diploma.

In 2025 waren onze collega's van het Instituut voor Psychologie opnieuw veelvuldig aanwezig in de media. Van (inter)nationale kranten tot podcasts: ontdek waar ze dit jaar hun expertise in de media hebben gedeeld.

On dinsdag 26 september heeft Jessica Hill haar proefschrift ‘On the road to adulthood. Delinquency and desistance in Dutch emerging adults’ verdedigd. Promotor is Professor Arjan Blokland.

Feedback van medestudenten op schrijfwerk is net zo leerzaam als die van docenten.

We consider the propagation of electrical signals through nerve fibres.

Promotor: H.V.J. Linnartz

Na het klimaat snijden psychologen opnieuw een groot thema aan: oorlog en vrede. Of, misschien meer: samenwerking en conflict. Want hoe welwillend we ons ook opstellen na elkaar, in relaties ligt wrijving altijd op de loer. Onderzoekers Angelo Romano en Tom Roth bieden verklaringen en praktische adv…

The role of material production as a driver of environmental impacts is increasing, which calls for a better understanding of global material flows. This thesis explores the role of in-use stocks of products, buildings and infrastructure as a key driver of global material demand and discusses the implications…

“Temminck’s Order” is the scientific biography of Coenraad Jacob Temminck (1778–1850), a Dutch naturalist and the first director of ’s Rijks Museum van Natuurlijke Historie in Leiden.

Bacterial chemosensory arrays are protein assemblies that are the key structural and functional component for motile bacteria to sense their internal or environmental chemical signals.

Majorana fermions in superconductors are the subgap quasiparticle excitations that are their own antiparticles.

Let A be a commutative algebraic group over a field K, and let G be a finitely generated subgroup of the K-rational points of A. The purpose of this thesis is to study the degrees of the Kummer extensions relative to A,K and G.

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

In het radioprogramma Kennismakers op Sleutelstad vertelt Martina Vijver over de landelijke erkenning voor het Levend Lab. Deze week kreeg het buitenlab subsidie van de NWO.

Op 19 februari 2020 verdedigde Richard Jiang zijn proefschrift '‘Greening’ the WTO Ban on China’s Export Duties'. Het promotieonderzoek is begeleid door promotor prof.dr. M.C.E.J. Bronckers.

Artificial photosynthesis has recognised potential to produce green and sustainable fuels from earth-abundant resources such as water, carbon dioxide (CO2), and sunlight.

Ondernemen als wetenschapper: hoe pak je dat aan? Waarom zou je überhaupt met je onderzoek de markt op? En welke obstakels kom je dan tegen? ‘Het kost tijd een bedrijf te vinden dat matcht met jouw motieven.’

Begin oktober vond de eerste Psychology Connected van dit nieuwe academische jaar weer plaats. Met de vallende herfstbladeren voelen velen zich ook somberder. Onderzoekers delen hoe je een winterdepressie verzacht, en hoe je als ouder het beste kunt omgaan met de depressieve klachten van je kind.

Hoe sporen we onderzoeksfouten beter op? En hoe zorgen we ervoor dat we die fouten niet meer zien als blijk van ons onvermogen, maar als sleutel naar beter en betrouwbaarder onderzoek? Wetenschappers geven raad tijdens de derde Psychology Connected.

The focus throughout this thesis will be on gathering fundamental studies of the detailed structure and composition of the electrode/electrolyte interface effect on the rate and mechanism of key electrocatalytic reactions.

Promotor: Bas Edixhoven, Promotor: Qing Liu