Synthetic microswimmers take an important place within the interdisciplinary field of active soft matter.

In this thesis, we develop a novel technique called Optical Near-field Electron Microscopy (ONEM), which aims to combine the advantages of both optical and electron microscopy: the high resolution of electron microscopy and the low sample damage of optical microscopy.

Promotor: Prof. dr. A.G.G.M. Tielens

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. M.L. van Heck, Co-Promotor: B.P. Tighe

Dit boek richt zich op het element van drempels – geïmproviseerde poorten, geïmproviseerde constructies en huisdeuren – als concepten van liminaliteit in magische rituelen uit het oude Nabije Oosten, en het idee van transformatie dat zij weerspiegelen.

This thesis covers several aspects of quantum algorithms for near-term quantum computers and its applications to quantum chemistry and material science.

The goal of the research presented in this thesis was to explore the chemical space of ruthenium(II) photocages, investigate their ability to host potent chemotherapy drugs, and to red shift the activation wavelength of the most promising PACT candidates to conduct biological studies.

This thesis addresses questions on effectively using variational quantum circuits for machine learning tasks.

This thesis has shed light on some of the ways in which the local electrolyte composition can differ from the bulk and how these changes in the local reaction environment can determine the activity and/or selectivity of two important electrocatalytic reactions, namely, electrochemical CO2 reduction…

Promotor: Prof.dr. E. Eliel, Co-Promotor: M.J.A. de Dood

Het belangrijkste doel van dit onderzoek is om de steden van het Romeinse Nabije Oosten in de keizertijd in kaart te brengen, met een focus op locatie, stadsgrootte en stedelijke kenmerken, om de vorm van het stedelijke systeem en de niveaus van integratie te bestuderen.

Promotor: M. Franx, Co-Promotor: I.F. Labbé

Metal-based prodrugs based on ruthenium(II) polypyridyl complexes have proven to be very suitable for application in both photodynamic therapy (PDT) and photo-activated chemotherapy (PACT).

De Iraakse archeologische site Nimrud werd kort geleden terugveroverd op IS. Maar wat nu te doen met de beschadigde resten? Bleda Düring sprak erover in Trouw.

This work describes several studies into the electroreduction of carbon dioxide (CO2RR), both regarding mechanistical aspects and catalyst stability considerations. Mechanistic insights into carbon-carbon bond formation on a silver catalyst are described in Ch 2, were we find an acetaldehyde-like surface…

Promotor: Prof.dr. C.U. Keller

Promotie

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This study has been carried out in the community of Sukamiskin, a kelurahan (‘village’) in Bandung, the Capital of West Java Province, located in the Sunda Region of Indonesia.

This dissertation focused on computational methods based on first principles calculations using the Density Functional Theory (DFT) framework. Emphasis was laid on affordable methods that can provide a tradeoff between computational expense and accuracy.

Binnen het brede netwerk van de Universiteit Leiden neemt het instituut deel aan onderzoek binnen de volgende profileringsgebieden:

Kijk mee en praat mee over de wetenschap van het verleden tijdens wekelijkse Let’s Plays van populaire games en vodcasts op het livestreamplatform Twitch.

Leiden University’s Academic Challenge

This thesis covers various applications of topology in condensed matter physics and quantum information.

Promotor: M.A.G.J. Orrit

Religion, Philosophy, and the Pre-modern World

De onderzoekers van het departement ‘World Archaeology’ van de Faculteit Archeologie richten zich in hun onderzoek op verschillende periodes en regio’s: van de oorsprong van de mens tot aan de Middeleeuwen en de moderne tijd, en van Azië tot Zuid-Amerika.

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.

The work presented in this thesis is based on ALMA surveys of protoplanetary disks in three star-forming regions: Lupus, OMC-2, and NGC 2024.

A large diversity of exoplanetary systems has been found, but it is still unclear what drives this diversity.

Promotor: Prof.dr. P. Stevenhagen, Co-promotor: B. de Smit

This thesis revolves around the electronic spectroscopy of molecules in the laboratory and the search for the carriers of the diffuse interstellar bands (DIBs).

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

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

This thesis aims to improve the detection from ultra-weak single emitter by enhancing their emission properties with plasmonic nanostructures. We exploit the wet-chemically synthesized single crystalline gold nanorods (GNRs) as our basic frameworks in the whole studies, simply because of their unique…

Promotor: Prof.dr. D. Bouwmeester

This thesis investigates reactive interfaces in surface science across three domains: heterogeneous catalysis, environmental nanoplastics, and two-dimensional materials.

Promotores: S.F. Portegies Zwart, E. M. Rossi

Promotor: I. A. G. Snellen, Co-promotor: M. A. Kenworthy

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.

This thesis systematically analyzes the physical-chemistry of lipid-graphene interactions with the major objective of reconciliating the variety of results reported in the literature.

Promotor: Prof.dr. J. Kuiper

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

On the largest scale, the Universe resembles a cosmic spiderweb. Most galaxies coexist in small groups within the threads of this web. At the nodes of the threads are enormous groups of galaxies forming the largest structures in the universe still held together by gravity: clusters of galaxies.

Why do black holes emit thermal radiation? And how does a closed quantum system thermalize?

Sustainable energy from wind and solar is most readily available near the sea.

Archeoloog Victor Klinkenberg onderzocht een oude Assyrische nederzetting in Syrië, dichtbij IS-bolwerk Raqqa. ‘Al met al speelde het sociale leven een veel grotere rol dan het militaire.’ Promotie op 27 oktober.