Promotor: Prof.dr. M.L. van Heck, Co-Promotor: B.P. Tighe

Arithmetic geometry concerns the number-theoretic properties of geometric objects defined by polynomials. Mathematicians are interested in the rational solutions to these geometric objects.

Metal complexes and 2D materials like graphene were combined to produce structures that can function as sensors.

Retorica is overal. In de Tweede Kamer, in de rechtbank, en in de collegezaal; maar ook op de markt, op Twitter, en op Facebook. Mensen proberen elkaar steeds weer te overtuigen met argumenten, te verleiden met emoties, en te imponeren met een gunstige zelfpresentatie. De minor Retorica bestudeert de…

Acute cardiovascular syndromes, including myocardial infarction or stroke, are the principal cause of death in the Western society. The main underlying pathology of cardiovascular diseases is atherosclerosis, which is caused by the accumulation of lipids and inflammatory cells in the vessel wall, in…

Bacterial biocatalysis constitutes a sustainable alternative for high-value chemicals production by enabling the utilization of renewable feedstocks.

The physical origin of the dozens of stellar-mass binaries, the mergers of which have been detected by the LIGO-Virgo-KAGRA collaboration via gravitational waves, is still unknown.

This dissertation explores new chemical strategies for the synthesis of self-adjuvanting peptide conjugates and immunomodulatory ligands aimed at targeted activation of the immune system.

Neurodegenerative diseases pose a large medical and societal challenge. The etiology of these diseases is still poorly understood, which makes drug discovery for these diseases difficult.

Single-layer graphene (SLG) has attracted considerable interest as a proton exchange membrane for direct methanol fuel cells (DMFCs), owing to its atomic thickness, mechanical robustness, and unique proton permeability.

This thesis advances our understanding of lipid uptake, a vital first step in lipid metabolism, by developing innovative click chemistry-based tools to study how immune cells internalize lipids.

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Participants in this course will learn to support student teachers and new colleagues in their professional development as teachers, with particular emphasis on the context of bilingual or international education, as in the ICLON World Teachers Programme (WTP).

Leiden University would like to express its concern about the proposed Hungarian higher education draft law, which, if adopted, would make the functioning of Central European University (CEU) in Budapest nearly impossible. These changes would endanger the academic freedom vital for CEU’s continued operation…

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Faciliteiten waar LIBC leden gebruik van kunnen maken (in het Engels):

In 2025 waren onze collega's van het Instituut voor Psychologie opnieuw veelvuldig aanwezig in de media. Van (inter)nationale kranten tot podcasts: ontdek waar ze dit jaar hun expertise in de media hebben gedeeld.

CONSENT (Consumer sentiment regarding privacy on user generated content services in the digital economy) is a research project funded by the European Union under the 7th Framework Programme. The question central to this research is whether recent changes to consumer and commercial practices developed…

Learning from small data sets in machine learning is a crucial challenge, especially when dealing with data imbalances and anomaly detection. This thesis delves into the challenges and methodologies of learning from small datasets in machine learning, with a particular focus on addressing data imbalances…

Promotor: Prof.dr. T. Schmidt, Co-Promotor: S.J.T. van Noort

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.

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,…

This dissertation presents a new perspective on the life, work and character of the Dutch physical chemist Jacobus Henricus van ’t Hoff, first recipient of the Nobel Prize in Chemistry, and one of the most important and colourful scientists in Dutch history. The image of Van ’t Hoff that emerges from…

S.S. Kolipaka’s thesis questions and investigates the survival prospects of reintroduced tigers and their offspring’s in the human dominated landscape of Panna tiger reserve in India.

Bacteria often experience external challenges, such as changes in environmental conditions or attacks by bacteriophages.

Promotor: T.J. Aartsma, Co-promotor: R.N. Frese

Leiden is een echte studentenstad. Meld je aan voor een studievereniging of studentenvereniging om van jouw studietijd een onvergetelijke tijd te maken!

Leiden en Den Haag zijn echte studentensteden die van jouw studententijd een onvergetelijke tijd maken. Lees snel verder waarom.

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…

Cholesterol influences many pathways, including serving as precursor for adrenal steroidogenesis. Imbalance of cholesterol levels has been implicated in several diseases including cardiovascular diseases and its underlying pathology, atherosclerosis.

Nanoparticles can be used as delivery systems for both small molecules and macromolecules such as proteins, peptides or oligonucleotides. This thesis focuses on the use of liposomes, nanometric vesicles formed by a lipid bilayer enclosing an aqueous core. Liposomes are highly versatile delivery syst…

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

The origin and evolution of galaxies are closely tied to the cyclic feedback processes between stars and the interstellar medium (ISM).

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…

Machine Learning is becoming a more and more substantial technology for industry.

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…

Soil is a home for an unbelievable diversity and abundance of microbial life that is essential for supporting life on our planet.

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…

Het LLC draagt bij aan zowel initieel onderwijs over publiek leiderschap in de bachelor, master en honours programma’s, als aan post-academische opleidingen voor professionals.

When you have decided to participate in a Summer School of Leiden University, there are some matters you need to know before arrival. Please take a few minutes to read through the information here to find out what you can do from your side to smooth the process.

Dit is een vergelijkende studie naar het proces van omzetting of herroeping van vrijheidsbeperkende sancties in 10 Europese landen.

Kunst en vrije tijd, Kunst en vrije tijd

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Ontdek Leids onderzoek naar de toekomst

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…