In het nieuwste nummer van het blad ‘The Theory and Practice of Legislation’ staat een bijdrage van Jelle But, Demy Jongkind en Wim Voermans.

This thesis contributes to studying primordial cosmology theories and their detectability in future observations.

Promotor: Prof.dr. C.W.J. Beenakker

Promotor: S.M. Verduyn Lunel, Co-Promotor: O.W. van Gaans

Dissociative chemisorption is an important reaction step in many catalytic reactions.

Chapter 1,contains the numerical verification of the Birch and Swinnerton-Dyer conjecture for hundreds of Jacobians of hyperelliptic curves of genus 2, 3, 4 and 5.

Promotor: G. J. Kroes

The work in this thesis demonstrates how to obtain an atomic-scale picture of a diverse set of complex surface structures observed using STM, under disparate conditions.

In this thesis, we address two problems concerning the tautological rings of the moduli space of curves.

The dissertation offers new tools and insights to computation and modelling of topological phases, with an emphasis on the aperiodic setting.

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

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

Waarom spraken negentiende-eeuwse wetenschappers zo graag over toewijding, vlijt en ijver? Waarom wijdde Robert Fruin zijn oratie aan onpartijdigheid en riep Abraham Kuenen zijn studenten op tot waarheidsliefde?

Heterogeneous catalyzed processes are highly significant to the chemical industry. Dissociative chemisorption (DC) of molecules on surfaces is always considered as a step with a high degree of rate control for heterogeneous catalysis.

During the development of the (human) body from a single fertilized egg, organs and structures must form. The development and growth of biological forms is called morphogenesis.

In this research I assess the impact of the recently discovered gas reserves south off Cyprus on the escalation of the Cyprus conflict.

One of the effects of climate change is the phenomenon of desertification, a process that occurs in semi-arid and arid areas and causes land degradation as well as vegetation loss. Due to the lack of resources, vegetation self-organizes to sustain itself by forming large-scale spatial patterns.

Promotor: S.M. Verduyn Lunel, Co-promotor: O.W. van Gaans

In this thesis, we explore a Hochschild homology and cohomology-like notion for logarithmic schemes.

Promotor: S.J. Edixhoven

In this thesis, we consider various (electro)chemical phenomena at surfaces and nanoparticles and their underlying atomistic processes, which we studied using first-principles methods such as density functional theory.

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…

Aan de Universiteit Leiden worden cursussen over papyri en papyrologie aangeboden voor beginners en gevorderden (BA en MA), zowel op basis van teksten in vertaling als in de originele brontalen, van Egyptisch tot Grieks, Latijn en Arabisch.

Metals surfaces form a group of effective catalysts for the reaction of small molecules such as hydrogen (H2).

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.

Kim Beerden vertelt vanuit het Rijksmuseum van Oudheden over beelden, altaren en inscripties die ons iets vertellen over deze lokale godin uit het huidige Zeeland in de Romeinse tijd.

Miko Flohr vertelt in deze tweedelige podcast over zijn onderzoek in Paestum, Ostia, Herculaneum en Pompeii.

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.

Promotor: H.J. van den Herik, B.R. Katzy, Co-promotor: K. Sailer

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

One of the most important correlation functions in physics, especially in cosmology, is the energy density, which describes how much energy is present at each point in spacetime due to matter fields. A key contribution to the energy density of the primordial universe comes from gravitational waves (GWs),…

Stochastic resetting is simple enough to be approached analytically, yet modifies stochastic processes in a non-trivial way.

Promotor: H.W. Lenstra

De prehistorie van communicatiemetaforen

Promotor: Peter Stevenhagen

Migration and Mobility in the Early Roman Empire by Luuk de Ligt and Laurens E. Tacoma (Eds.)

Nieuws over de Oudheid! Jürgen Zangenberg en Patricia Kret praten ons bij over een interessante vondst die recent gepresenteerd is in Frankfurt: een vroegchristelijk amulet mét een duidelijke archeologische context.

Combinatorial games are games for two competing players, moving in a turn-by-turn fashion, in which there is no chance nor hidden information⁠. Chess, checkers and the simpler tic tac toe are well-known examples of this class of games, as well as game of go⁠.

De Griekse papyrologie is de wetenschap die zich bezighoudt met het ontcijferen en bestuderen van alle teksten die in de Griekse taal op papyrus geschreven staan. Papyrus was het schrijfmateriaal van de oudheid en werd vervaardigd uit op elkaar gekleefde reepjes van de papyrusplant.

This thesis is comprised of three chapters covering the theme of studying semistable varieties by looking at their dual combinatorial objects.

This thesis explores how bees and hoverflies are distributed across the Dutch landscape and how ecological and landscape factors shape their occurrence.

The focus of the dissertation

Promotores: P. Stevenhagen, L. van Geemen Co-promotor: R.M. van Luijk