The extensive use of electronic communication channels and other devices has opened new possibilities for collecting data on human behavior. This information is sometimes openly accessible, but largely part of administrative registration systems that are not open to the broader public. The data provides…

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. H.W. Lenstra

The unit residue group, to which the present thesis is devoted, is defined using the norm-residue symbol, which Hilbert introduced into algebraic number theory in 1897.

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

Promotor: Prof.dr. P. Stevenhagen

Promotores: H.W. Lenstra, A. Lucchini

Promotor: S.M. Verduyn Lunel, Co-promotores: M.F.E. de Jeu, B. de Pagter

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.

In my research, we developed a method to distinguish knots. A knot is a mathematical depiction of the everyday knot that occurs in ropes and cords.

The main topic of this PhD thesis is the Arakelov ray class group of a number field, an algebraic object that contains both the ideal class group structure and the unit group structure.

Hoe kunnen theorieën over moderne desinformatie helpen om te begrijpen hoe dat werkte in de Romeinse tijd?

This dissertation is a collection of four research articles devoted to the study of Kummer theory for commutative algebraic groups.

Terroristische groepen passen zich aan veranderingen in hun omgeving aan om relevant te blijven. Dit project biedt nieuwe inzichten door een theorie over strategische doelwitselectie te ontwikkelen en big data-analyse en machine learning toe te passen om de hypothesen te testen.

Promotor: Prof.dr. P. Stevenhagen, Prof.dr. K. Belabas (Univ. de Bordeaux)

Promotores: P. Stevenhagen, E. Fouvry (Univeriste Paris Saclay)

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.

The thesis focuses on synthesis strategies in oligosaccharide campaigns, and the influence of protecting groups.

Promotor: Prof.dr. W.T.F. den Hollander

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.

Most of current public-key cryptography is considered insecure against attacks from sufficiently powerful quantum computers. Post-quantum cryptography studies methods to secure information resistant against such attacks. One proposal is isogeny-based cryptography, which bases its security on computational…

In this thesis we classify the pairs (p,G), where p is a prime number and G is a finite p-group possessing an intense automorphism, i.e. an automorphism that sends each subgroup of G to a G-conjugate, that is non-trivial and whose order is coprime to p.

Deze week verscheen 'Dutch Post-war Fiction Film through a Lens of Psychoanalysis' van Peter Verstraten bij Amsterdam University Press, het vervolg op Humour and Irony in Dutch Post-war Fiction Film uit 2016. Elk hoofdstuk in zijn 482 pagina's tellende nieuwe studie begint met een titel van Fons Rademakers…

The research group Science Communication and Society aims to understand how science communication works to improve the interaction between science and society. Central themes are ‘Bridging the gap between experts and the general public’ and ‘Evaluating Science Communication’.

Principles of Environmental Sciences provides a comprehensive picture of the principles, concepts and methods that are applicable to problems originating from the interaction between the living and non-living environment and mankind. Both the analysis of such problems and the way solutions to environmental…

In dit proefschrift wordt verslag gedaan van vier studies waarin het samenwerken tussen docenten in opleiding (dio’s) onderzocht is. Samenwerking in de lerarenopleiding is belangrijk, omdat dit het leerproces van de dio’s tijdens de lerarenopleiding kan stimuleren en omdat ze zo voorbereid kunnen worden…

De onderzoeksgroep War, Peace and Justice onderzoekt de samenhang tussen oorlog, vrede en gerechtigheid. Met een multidisciplinaire aanpak brengen onderzoekers en praktijkdeskundigen nieuwe inzichten in conflict, duurzame vrede en mensenrechten, met bijzondere aandacht voor gender en veiligheid.

De onderzoeksgroep Diplomacy and Global Affairs richt zich op internationale diplomatie, governance en vergelijkend onderzoek, met aandacht voor thema's zoals de EU, de VN, uitbreiding van de EU, de rechtsstaat, en democratische achteruitgang.

Wanneer een fysisch systeem symmetrieën bezit gaan deze vaak gepaard met een representatie van de symmetriegroep op een Hilbertruimte. Groepsrepresentaties op Hilbertruimten zijn intensief onderzocht.

Het onderzoek van de Intelligence and Security Studies Group naar inlichtingen en veiligheid draagt bij aan academische kennis, voedt de publieke discussie, ondersteunt ons onderwijs en de ontwikkeling van professionele praktijk.

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…

Big Science, commonly defined as conventional science made big in three dimensions, namely organizations, machines, and politics, brings a plethora of different stakeholders together, often for a long period of time. This includes policymakers, scientists, (scientific) managers as well as local “host”…

In deze opleiding leer je om concepten uit de statistiek en informatica te gebruiken om waardevolle informatie te halen uit grote hoeveelheden data.

In de Paradisolezingen 2014 worden zin en onzin van wetenschappelijke thema’s in speelfilms belicht.

Enforcement of group cooperation fails because of discriminatory punishment, according to research by Welmer Molenmaker and colleagues. When group members have different backgrounds, punishment turns into a double-edged sword: no longer used just to prevent group exploitation, but also to break the…