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

This thesis is a collection of theoretical works aiming at adjusting quantum algorithms to the hardware of quantum computers.

Promotor: P.M. Brakefield

A management strategy has been developed for field margins to reduce pesticide drift to non-target areas and to promote biodiversity on arable land. To this end, 3 and 6 m wide strips along the edges of winter wheat, sugar beet and potato crops have been left unsprayed with herbicides and insecticides…

Despite the history of studies on methanol formation from CO2, the dominant elementary reaction steps that constitute the chemical mechanism for this catalyzed process are not determined.

The parabolic Anderson model (PAM), which is the Cauchy problem for the heat equation with random potential. The PAM is a mathematical model that describes how mass (i.e. matter or energy) flows in a medium in the presence of a field of sources and sinks.

Het Leiden University College in Den Haag is het internationale honours college van de Universiteit Leiden, de oudste universiteit van Nederland en één van bekendste universiteiten van Europa. Het LUC biedt een unieke, interdisciplinaire bacheloropleiding: Liberal Arts & Sciences met een focus op Global…

This thesis aimed to investigate the impact of exposure dynamics, relative contributions of ENPs(particle) and ENPs(ion), and dosing regimens on the toxicity of ENPs varying in different physico-chemical properties, on the composition and functioning of soil microbial communities.

Master

Promotor: Robert Tijdeman, Co-promotor: Cornelis Kraaikamp

Promotor: P. Stevenhagen, Co-promotor: R.M. van Luijk

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.

Leiden University College The Hague (LUC) is the international Honours College of Leiden University and offers an innovative Liberal Arts & Sciences undergraduate programme to highly talented and motivated students from all over the world.

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

Het duurt vaak lang voordat iemand met een eetstoornis hulp zoekt en behandeld wordt. Volgens promovendus Pieter Rohrbach biedt E-Health oplossingen.

Leiden University College (LUC) biedt een kleinschalige en intensieve opleiding aan, waarin je les hebt in kleine groepen. Je doorloopt een selectieprocedure, waarbij de toelatingscommissie bekijkt of je goed bij deze studie past. We gebruiken een holistisch toelatingsproces: we kijken naar meer dan…

Leiden University College (LUC) biedt een kleinschalige en intensieve opleiding aan, waarin je les hebt in kleine groepen. Je doorloopt een selectieprocedure, waarbij de toelatingscommissie bekijkt of je goed bij deze studie past. We gebruiken een holistisch toelatingsproces: we kijken naar meer dan…

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.

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

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.

Onderzoeken hoe gegevens afkomstig van draagbare technologieën kunnen worden gebruikt om effectieve gedragsveranderingen te identificeren die hopelijk zullen leiden tot gezondheidsverbeteringen.

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.

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

This thesis investigates how non-genetic factors, such as inflammation and concomitant medication, impact hepatic drug metabolism and subsequent drug metabolizing phenotype predictions.

Leiden University College The Hague's campus is right next to The Hague Central Station.

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)