The Vallesian, 11.1-9 Ma, was a special time in the Vallès-Penedes basin near Barcelona, where a biodiversity hotspot existed. Europe had a subtropical climate, with rhinos, forest giraffes, lions, hyenas, flying squirrels and primates.

There is an increasing amount of attention on EU and its Member States contributions to implementation of two landmark agreements: the Paris Climate Agreement and the UN Agenda 2030 with Sustainable Development Goals (SDGs). Absent from the current literature is an analysis of the political effect of…

Promotor: Prof.dr. J. Kuiper

The availability of indicators based on social media has opened the possibility to track the online interactions between social media users and scholarly entities.

The main object of study in this thesis is an Arakelov inequalitywhich bounds the degree of an invertible subsheaf of the direct image ofthe pluricanonical relative sheaf of a semistable family of curves.

The main goal of the research described in this thesis was the development of new photoactivated chemotherapy (PACT) ruthenium(II) complexes bearing a non-toxic photolabile ligand.

In this thesis we study bistable reaction-diffusion equations on lattice domains.

The aim of the research presented in this thesis was to develop new methods forchallenging systems in liquid-state NMR using paramagnetic effects generated by thetwo-armed probe CLaNP-5.

Promotores: J. Jonkers, K.E. de Visser

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.

Control of infectious diseases poses continuous challenges for human health.

Promotor: Prof.dr. G.R. de Snoo, Prof.dr. G.A. Persoon, Co-promotor: H.H. de Iongh

This dissertation presents new cryptographic protocols, which can be divided into two families.

Op 7 december 2021 verdedigde Georgina Kuipers het proefschrift 'Beschadigd vertrouwen'. Het promotieonderzoek is begeleid door prof.mr. W. den Ouden en prof.dr. M.A. van der Steen (EUR).

Ice, the solid state of water, plays an important role on our planet as well as the entire universe.Despite the fact that an individual water molecule has a very simple structure, its chemical bonding in the solid phase can be surprisingly complex.

Including modelling as part of software development appears to have various benefits.

Artful Mathematics: The Heritage of M. C. Escher

Immunotherapies for cancer are an emerging class of therapeutic strategies which aim to treat cancer via augmentation of the immune system.

This thesis mainly extends the theory of positive operators on Riesz spaces to a setting of pre-Riesz spaces.

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: A. Kros

Promotor: Prof.dr. W.Th.F. den Hollander, Co-promotor: R. Fernandez.

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

Promotores: W. Jiskoot, F. Ossendorp

This thesis describes the Multi-site All-Sky CAmeRA (MASCARA), which consists of two small robotic telescope designed to detect exoplanets around the brightest stars in the sky.

The glycosylation reaction is a pivotal reaction in creating new and complex oligosaccharides.

Promotor: Prof.dr. P. Stevenhagen

Promotor: H.S. Overkleeft, J. Neefjes, Co-promotor: M. van der Stelt

Systems are called real-time systems, if the correctness of the system does not only depend on the correctness of the system output but also on whether the output is delivered on time.

We consider the propagation of electrical signals through nerve fibres.

This thesis describes the functional analysis of the Arabidopsis AHL15 gene.

The marine shipping industry is one of the strongest emitters of nitrogen oxides (NOx), a pollutant detrimental to ecology and human health. Over the last 20 years, the pollution produced by power plants, the industry sector, and cars has been decreasing.

All life on earth contains DNA, which is used to store biological information. Organisms compact their DNA in order for it to fit inside their cell(s).

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.

Sterrenkundige Yamila Miguel wil meer te weten komen over de atmosfeer en binnenkant van reuzeplaneten. Met een ERC Consolidator Grant van 2 miljoen euro gaat ze reuzenplaneten binnen en buiten ons zonnestelsel bestuderen. 'We willen meer weten over het ontstaan van zonnestelsels, hoe planeten zich…

Onderzoekers hebben een materiaal ontwikkeld dat ingaat tegen een van de basisprincipes van de natuurkunde. Reguliere materialen die ingedrukt worden, verspreiden de druk gelijkmatig, ongeacht waar die vandaan komt. Het nieuwe materiaal breekt met deze wetmatigheid en dat kan interessant zijn voor toepassingen…

De YAL laat zich horen over beleidskwesties.

Een natuurkundig model voorspelt het bestaan van steriele neutrino’s, wat drie grote vraagstukken uit de fysica zou oplossen. Om ze daadwerkelijk te vinden met een deeltjesversneller moeten onderzoekers weten hoe ze geproduceerd worden en hoe ze vervallen. Promovendus Kyrylo Bondarenko heeft hier voorspellingen…

Namens de Nederlandse sterrenkundige gemeenschap veroordelen wij ondubbelzinnig de brute racistische moorden op Ahmaud Arbery, George Floyd en Breonna Taylor en vele anderen, alsook andere gevallen van racisme.

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

Whilst government’s ability to design ‘context-specific’ regional innovation policy is generally assumed to depend on the region’s decision-making power, the aim of this study is to investigate how regional government matters. In order to open up the black box of policy design, the study develops a…

Promotor: Prof.dr. H.J.M de Groot, Co-Promotor: A. Alia

Binnen Quantum Leiden doen verschillende groepen onderzoek naar quantumnetwerken en quantumsensing.

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

In this thesis it is posed that the central object of preference discovery is a co-creative process in which the Other can be represented by a machine. It explores efficient methods to enhance introverted intuition using extraverted intuition's communication lines.

Aan de opleidingen van het Centre for Professional Learning op het gebied van Terrorisme, Recht en Veiligheid zijn verschillende (research) fellows verbonden. De fellows geven advies over de inhoud van het curriculum en de verbinding tussen wetenschap en praktijk.

Donkere materie. Onzichtbaar spul wat volgens berekeningen zo’n 85% van de materie in het heelal omvat. Met een ERC Advanced Grant van 2.5 miljoen euro gaat Hoogleraar Observationele Kosmologie Henk Hoekstra nog preciezer in kaart brengen waar deze donkere materie zich bevindt.

Geesteswetenschappen, Centre for Linguistics

Geesteswetenschappen, Centre for Linguistics