The living plant collections form the heart of the Hortus botanicus Leiden and serve as a vital resource for scientific research. By studying these collections, researchers can explore biodiversity in a unique way and conduct experiments on living material.

In times of hardships or crisis, local people know how to deal with it using their resourcefulness. Although efforts are sometimes made by the government to help them, they are fully aware that community support is at least equally important.

What role should the university play in the climate crisis?

In this study, we evaluated the influence of supercritical carbon dioxide (scCO2) spray drying conditions, in the absence of organic solvent, on the ability to produce dry protein/trehalose formulations at 1:10 and 1:4 (w/w) ratios.

Lecture | Leiden Lectures on Arabic Language & Culture

Iconografía, epigrafía e historia en los monumentos arqueológicos

The funerary textile tradition from the Osmore Valley, South Peru, and its social-political implications (2005)

Insights in diet, climate and ecology

This is a critical edition with introduction and indices of the Questiones libri Porphirii, a commentary on Porphyry’s Isagoge attributed to the fourteenth-century logician Thomas Manlevelt.

My research examines children’s responses to humor in children’s poems translated from English into Filipino.

Are you eager to bring your own questions and curiosity into scientific research? Do you question intelligence and technology in a fundamental, creative, and playful way? Could you be a researcher who challenges scientific practice and pushes its boundaries?

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.

The Heritage Sector at a Crossroads: The way of Intersectionality. This project investigates how heritage institutions can achieve inclusion and accessibility within their organization, collection, and exhibition spaces that meets the breadth of demands placed by today’s “critical visitors.” Fifteen…

Dutch artist and visionary David Humbert de Superville (1770-1849) was the founder and first director of the Print Room at Leiden University. An exhibition and symposium are now being organised in his honour. What makes him so remarkable?

Colonial art and artefacts were not necessarily looted. Pieter ter Keurs, Professor of Museums, Collections and Society, calls for more nuance in the debate on art and collectors’ items from a loaded past. Inaugural speech on 2 December.

Overview of all dissertations published by PhD candidates from CML.

Sterre ter Haar has won the Rachel Carson Graduation Prize for her thesis on how rising levels of CO₂ affect the nutrient content of plants. For the Industrial Ecology student, the award is a crowning achievement after a difficult period of recovering from long COVID.

How do secondary school teachers’ professional learning preferences relate to teaching experience and the school context?

Interest groups play an important role in democratic society.

What would a university be without its students? In 2025, we will celebrate 450 years of studying with an exhibition showcasing our students from the past centuries. How did they study in the past? And how do they study now? This outdoor exhibition will be on display from 23 April at the Hortus bota…

On August 29th Rob Tijdeman held his valedictory lecture in a full house Academy Building as a professor in Number Theory, entitled 'My life as a mathematician'. After his lecture he was appointed, in name of the Queen, Knight in the Order of the Dutch Lion by the maior of Leiderdorp.

De Prix de Paris is een aanmoedigingsprijs voor jong, Nederlands talent. Deze prijs (ter waarde van 15.000 EUR) is bedoeld ter stimulering van wetenschappelijk onderzoek over Frankrijk. De deadline voor aanmeldingen is 1 mei 2021.

Would you like to take a walk with a fellow student who you don’t know? That is the idea behind Walk & Talk. With this new initiative, International Studies aims to provide more opportunities for social contact.

Pushing the boundaries of quantum theories – that’s exactly what the physicists at Leiden University excel at. Researchers in Leiden are launching eight new quantum research projects as part of the Quantum Limits consortium.

Promotor: Prof.dr. D. Bouwmeester, Co-Promotor: M.J.A. de Dood

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 thesis is dedicated to the exploration of the primordial dark ages: unknown physics during the earliest stages of the Universe’s expansion that have not yet been directly probed by observations. Cosmic inflation is a burst of exponential expansion of space after the “Big Bang”.

A difficulty of studies on chemical kinetics are the reaction time scales and detection of their intermediates.

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

Promotor: J.W.M. Frenken Co-Promotores: I.M.N. Groot; L.B.F. Juurlink

The mission of our group is understanding how science communication works to improve the interaction between science and society. We believe better science communication can improve our society and engage many different groups with science, also improving science.

Mechanical metamaterials are man-made materials which derive their unusual properties from their structure rather than their composition.

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.

Promotor: M.A.G.J. Orrit

Promotor: Prof.dr. M.A.G.J. Orrit

Promotor: Prof.dr. J.W.M. Frenken

Promotor: Prof.dr. A. Achucarro, Co-Promotor: J.W. van Holten

From surface science towards industrial practice using high-pressure scanning tunneling microscopy.

Promotor: J.W. van Holten

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

Quantum Delta NL, a research programme in which Leiden University participates, has been awarded 615 million euros from the National Growth Fund to help develop the Netherlands into a top player in quantum technology.

Promotores: Prof.dr. J. Zaanen & Prof.dr. K.E. Schalm

Research groups in the Biological & Soft Matter Programme unravel mechanisms in biological processes and develop novel bio-inspired soft materials.

Contact the Graduate School of Science Office

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

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.

The Leiden Institute of Physics (LION) offers bachelor and master level education in physics at Leiden University.

The aim of ANCIENT CHARM was to develop neutron-imaging techniques and the associated equipment, and help establish neutron imaging as a mainstream archaeological analytical technique. In particular, one of the goals was a new imaging technique which called neutron resonant capture imaging combined…