Bekijk de toelatingseisen voor de MSc Nederlandse Politiek aan Universiteit Leiden: vereiste bacheloropleiding, academische credits en taalvaardigheidseisen.

Op 10 november 2021 verdedigde Carmel van Niekerk-Jacobs het proefschrift 'Realising the right to reproduce with assistance in South Africa'. Het promotieonderzoek is begeleid door prof.dr. J.J. Sloth-Nielsen en prof.dr. T. Liefaard.

Hybrid zones occur where two species meet and produce offspring (hybrids). Typically, hybrids show a considerable reduction in fitness. In this thesis two hybrid zones are treated.

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 the Schouwburgstraat, LUGO is currently redesigning the back-garden in order to increase biodiversity and make it a more beautiful space. Throughout October 2023 until March 2024, we will be making changes to the garden with our team of volunteers.

A single self-assembled semiconductor quantum dot in a high-finesse optical microcavity - the subject of this thesis - is an interesting quantum-mechanical system for future quantum applications. For instance, this system allows trapping of an extra electron and thus can serve as a spin quantum memory,…

The thesis addresses the long-term dynamical evolution of hierarchical multiple systems.

In this work, we investigate the minute circular dichroism effects of single nanoparticles.To this aim, we apply photothermal imaging with a polarization-modulated heating beam.

Op 8 juli 2020 verdedigde Andres Sarmiento Lamus zijn proefschrift 'The Proliferation of Dissenting Opinions in International Law'. Het promotieonderzoek is begeleid door promotoren prof.dr. L.J. van den Herik en prof.dr. Y.A.A.S. Radi (UCLouvain).

The overarching clinical aim of this thesis was to improve pharmacological pain management by characterizing the pharmacodynamics of analgesics. This promotion has been awarded the predicate cum laude.

Promotores: H.W. Lenstra, K. Belabas (University of Bordeaux)

Promotor: A.H. Meijer, Co-promotor: B.E. Snaar-Jagalska

This dissertation explores how we can make anomaly detection—identifying unusual or faulty behavior in complex systems—more trustworthy and effective, with a focus on smart manufacturing.

Promotores: Prof.dr. T.H.W. Bäck, Prof.dr. M.R.V. Chaudron, Co-Promotor: M.T.M. Emmerich

Promotor: E. Bouwman, Co-promotor: S. Bonnet

Electrons in a crystal lattice have properties that may differ from those of a free electron in vacuum.

The ultimate goal of cosmologists is to find a cosmological model able to explain the current observational data.

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.

To gain more insight into the evolutionary development of orchid flowers and fruits, the orchid species Erycina pusilla was studied. The evolutionary origin of the median petaloid sepal, the callus on the labellum, and the stelidia was studied.

It is an established fact that the Standard Model has to be extended to explain the so-called Beyond the Standard Model (BSM) phenomena: dark matter, matter-antimatter asymmetry of the Universe and neutrino flavour oscillations.

Systems with local constraints is a new finding in recent researches on complex systems. The heterogeneous spatial interactions and the temporal dependencies among those numerous units make it difficult to describe by traditional statistical physics.

Promotores: P. Stevenhagen, L. van Geemen (Università degli studi di Milano), Co-Supervisor: Ronald M. van Luijk

Plant architecture has distinct forms in different plant species, but also within a species the finalarchitecture of a plant is determined by its gradual development and changes therein induced by environmental conditions during the plant’s life cycle.

Over several decades, a variety of computational methods for drug discovery have been proposed and applied in practice. With the accumulation of data and the development of machine learning methods, computational drug design methods have gradually shifted to a new paradigm, i.e. deep learning methods…

Synthetic microswimmers take an important place within the interdisciplinary field of active soft matter.

On a structural level, the properties featured by a majority of mechanical metamaterials can be ascribed to the finite number of soft internal degrees-of freedom allowing for low-energy deformations.

Breeding for resistance becomes more and more important because we want to reduce the use of pesticides. A fast and cheap alternative can be to make use of morphological or chemical markers.

Detecting planets during their formation stages is crucial for understanding the history and diversity of fully developed planetary systems like our own. However, observing young planets directly is challenging because they are often deeply embedded within their host protoplanetary discs, rich in gas…

Promotor: B. vd Water, T. Schmidt, Co-Promotor: E.H.J. Danen

Nanodiscs are small, disc-shaped structures designed to mimic biological cell membranes, composed of a lipid bilayer stabilized by scaffold proteins. Membrane proteins play crucial roles in essential processes such as nutrient and waste transport, molecular recognition, and cell signalling, making them…

The clinical potential of applying synthetic lethality to cancer treatment is famously demonstrated by the BRCA1/PARP1 paradigm: a tumor specific defect in BRCA1 – a component of the DNA double-strand break (DSB) repair pathway homologous recombination (HR) – results in a remarkable sensitivity to PARP1…

In analogy to mathematical proofs, the goal of a proof system is for a prover to convince a verifier of the correctness of a claim.

Maak je plannen voor een masteropleiding Psychologie? Beschik je over een verwante, afgeronde Nederlandse hbo- of wo-bacheloropleiding? Dan kán het eenjarige premasterprogramma Psychologie iets voor jou zijn.

Het begrijpen van de wereld om ons heen hangt af van het vermogen om de wereld te ontleden in verschillende objecten en deze in hun geheugen op te slaan. Dit proces wordt gedefinieerd als object individuatie. Onderzoek wijst uit dat dit voor baby’s niet altijd gemakkelijk is.

Actuele vraagstukken uit zowel Nederland als de internationale gemeenschap, zetten we in om de nieuwsgierigheid van studenten en onderzoekers te prikkelen.

Met ingang van 1 november 2025 is universitair hoofddocent Ethics and Digital Technologies Francien Dechesne benoemd tot bijzonder hoogleraar ‘Data and AI for the Rule of Law’ aan de Tilburg School of Humanities and Digital Sciences van Tilburg University.

The ultimate aim of this project (initiated by the European Law Institute) is to design a framework that will enable the further development of coherent and functional rules for business rescue in Europe.

Via verschillende soorten sessies breng jij op vrijdag 28 november jouw inter- of transdisciplinaire werk een stap verder.

Postdoc en taalwetenschapper Evelyn Bosma ontvangt voor haar proefschrift de Keetje Hodshonprijs. Voor haar onderzoek over meertaligheid van Friese kinderen won Bosma eerder al de Klokhuis Wetenschapsprijs en de Wetenschapsprijs Campus Fryslân.

What are the pressing issues of our time, and how can different disciplines come together to address them? Studium Generale and Leiden University College (LUC) present the Global Challenges series: events that bring together researchers from LUC and experts from other disciplines to tackle a shared…

A series of workshops at Leiden University and the University of Hamburg will act as a forum in which international legal scholars whose research adopts a behavioural approach can present their works-in-progress and gain feedback from a broad range of peers, including scholars in economics and cognitive…

Stimulerende drugs als khat en cocaïne hebben negatieve impact op dagelijkse handelingen als autorijden, werk of sociaal gedrag. Dat komt door beschadiging van controlefuncties in de hersenen. Psycholoog Manuel Ruiz draagt bij aan beter begrip en behandeling van drugsmisbruik. De Spanjaard Ruiz promoveert…

Wetenschap en maatschappij ontmoeten elkaar in de Leidse Nacht van Kunst & Kennis op 20 september. Vooraf krijgen onze topsprekers alvast een prikkelende vraag. Prefereren mensen in de toekomst een robot als partner?

In de Nacht van Kunst en Kennis op 14 september, kun je in Leiden op diverse plaatsen terecht voor een shot kunst en kennis. Maar dan is toch al de finale van IG Nobel, die mini-lezinkjes over onderzoek? Inderdaad. Past naadloos in het festival.

Hoe beïnvloeden toekomstige technologische ontwikkelingen ons dagelijks leven? Die vraag staat centraal tijdens het congres Brave New World op 2 en 3 november.

Moet de achtergrond van dit schilderij blauw blijven of terug gerestaureerd worden naar het oorspronkelijke goud? Buitenpromovendus Liselore Tissen gaat aan de slag met 3D-prints en eyetrackingsoftware om die vraag te beantwoorden. Ze ontvangt er een beurs van het NICAS van 18.000 euro voor.

In het LLP Kenniscafé stonden geen bier en bitterballen op het menu, maar communicatievaardigheden als luisteren, conflicten oplossen en feedback geven. ‘Leer je écht te luisteren, dan word je een betere leider en leukere vriend.’

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…

Bestudeer complexe veiligheidsvraagstukken, zoals terrorisme en cyberdreigingen, met een focus op real-life cases in Security Studies aan de Universiteit Leiden. Ontwikkel academische en professionele vaardigheden en bereid je voor op een master of carrière.

Subproject of the ERC project 'Challenging the Liberal World Order from Within: The Invisible History of the United Nations and the Global South'.