My PhD research is devoted to studies of the conjectural cluster-algebraic symmetry in the theory of topological string, which is the simplest, however already non-trivial sector in the theory of string.

Seizoen 2 van de Leiden Psychology Podcast is begonnen en we trappen af met een speciale Q&A met onze nieuwe hosts Aziza en Priya. In deze aflevering krijg je de kans om hen beter te leren kennen.

Polycyclic aromatic hydrocarbons (PAHs) are the most abundant class of organic compounds in space. The PAH field evolves from the constant interaction between experimentalists, theorists, modellers and observers. While laboratory research and quantum chemical calculations together set up the molecular…

Shape and biological function are tightly connected. Physical descriptions are used to connect the shape of a biological system with its function.

This thesis deals with properties of Jacobians of genus two curves that cover elliptic curves.

This Thesis focuses on the design and synthesis of ADP-ribosylated compounds that can be applied in biological studies.

Promotor: Prof.dr. M.L. van Hecke, Co-Promotor: V. Vitelli

Promotor: G.R. de Snoo

De masterspecialisatie Philosophical Perspectives on Politics and the Economy van de Universiteit Leiden was voorheen bekend onder de naam Philosophy, Politics and Economics.

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

Indigenous Latin American artifacts have attracted the interest of Europeans since the earliest moment of contact between Europeans and the Indigenous peoples of the Americas. The ERC-funded BECACO project uses an innovative multidisciplinary framework to investigate the provenance of ethnographic and…

In this thesis, we extend the concept of null models as canonical ensembles of multi-graphs with given constraints and present new metrics able to characterize real-world layered systems based on their correlation patterns.

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.

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…

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.

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.

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

Promotor: Robert Tijdeman, Co-promotor: Cornelis Kraaikamp

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.

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.

Het programma Kennismakers van Sleutelstad ging op reportage bij het Levend Lab. Ze spraken met Martina Vijver en Danielle van der Burg over de onderzoeken die in het buitenlaboratorium gedaan worden.

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

‘Heel interessant’, vinden twee bachelorstudenten van de verhalen van Liesbeth van Vliet en Niki Antypa tijdens de Psychology Science Day. Toefje op de taart zijn de posterpresentaties over de bachelorsscripties, bewonderd en becommentarieerd door wetenschappers en medestudenten. Ook docenten en postdocs…

Essays schrijven, beursaanvragen aanscherpen of een nieuwe cursus samenstellen: ChatGPT helpt studenten en onderzoekers erbij. Wat dat betekent voor de wetenschap, was onderwerp van gesprek tijdens de vierde Psychology Connected.

In this thesis, the role of plant-mediated soil legacy effects in shaping aboveground plant-insect interactions was investigated.

Promotor: Prof.dr. G.R. de Snoo, Co-promotor: R. Heijungs

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.

Voltammetry plays a crucial role in modern scientific research by offering valuable insights into the electrochemical properties of materials, with wide-ranging applications in fields such as materials science, energy storage, corrosion studies, and sensor development.

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…

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,…

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…

In this thesis we study the moduli space of genus g curves, and the differential forms that occur naturally on this moduli space.

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…

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.

Make more fluid: In condensed matter systems, electrons can acquire unusual properties from their interaction with the atomic lattice.

M.T.M. Koper, Co-promotor: D.G.H. Hetterscheid

Promotor: M.T.M. Koper, Co-Promotor: L.B.F. Juurlink

De nieuwe SSH-labs bieden grote kansen voor experimenteel onderzoek voor FSW- en FGW-wetenschappers. De labs worden een inspirerende plek, niet alleen door de state-of-the-art apparatuur, maar ook door het contact met collega’s uit andere disciplines.

Sheltering is an immediate human need and determines well-being andhealth.

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.

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.

Promotores: W.J.G.M. Peijnenburg, G.R. de Snoo, Co-promotor: M.G. Vijver

Diamanto Fragkiadaki is de eerste studente die de nieuwe masterspecialisatie School Psychology heeft afgerond. Ze begon een jaar geleden aan de masteropleiding en ontving op woensdag 20 september haar diploma.

We consider the propagation of electrical signals through nerve fibres.

Feedback van medestudenten op schrijfwerk is net zo leerzaam als die van docenten.

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.