Promotor: Prof.dr. G.P. van Wezel

Promotor: H.P. Spaink, A.H. Meijer Co-promotor: R. Marin-Juez

Promotor: Prof.dr. H.J.A. Rottgering

Viral hemorrhagic fever (VHF) is a group of acute diseases caused by highly infectious viruses including Ebola, Lassa, Dengue viruses. Its high mortality rate poses high risk to public health, however, studies on VHF have been hampered due to the non-availability of proper models and incomplete knowledge…

Tracing the evolution of the molecular gas content in galaxies is critical for a complete understanding of galaxy formation and evolution, as it provides the direct fuel for star formation. Studies of high-redshift (z>1) molecular gas reservoirs, most commonly traced by carbon monoxide (CO), have seen…

Make use of this time to improve your language skills by signing up for custom-made online language classes.

This thesis investigates how cell shape and collective behavior influence the dynamics and structure of biological tissues, which are crucial for understanding processes like embryonic development, tissue regeneration, and metastasis.

To study how planetary systems come into existence we study much younger systems still in formation.

Promotor: T. Hankemeier, Co-promotor: T.H. Reijmers

Promotor: C.J. ten Cate

Bicarbonate buffer is largely found in nature due to its ability to regulate pH variations around neutral values. As the pH changes, so does the speciation of the buffer.

Inverse problems are problems where we want to estimate the values of certain parameters of a system given observations of the system. Such problems occur in several areas of science and engineering. Inverse problems are often ill-posed, which means that the observations of the system do not uniquely…

Promotores: H.A. Udo de Haes, H.H.T. Prins, Co-promotor: H.H. de Iongh

We consider the propagation of electrical signals through nerve fibres.

In this thesis, we study systems of electrons in which strong correlations give rise to emergent exotic physics.

Cell-based medicinal products (CBMPs), such as CAR T cells, are highly complex biopharmaceutical products offering various treatment options for serious illnesses such as cancer or autoimmune diseases.

Atoms and molecules are the basic units of matter. If we keep dividing a bar of gold or a glass of water into smaller parts, at the end we are left with a single gold atom or a water molecule.

Promotor: H.J.A. Röttgering, Co-promotor: M. Haverkorn

Metals surfaces form a group of effective catalysts for the reaction of small molecules such as hydrogen (H2).

The following report discusses a survey on the topic of the Sustainable Development Goals that was distributed among researchers at Leiden University in the month of November 2021.

Natural resources often stretch across borders that separate modern nation states. This can create conflict and limit opportunities for regulated consumption of their goods and services, but also provide opportunities for joint multinational efforts that exceed single country capabilities.

The soil-dwelling, filamentous bacteria of the genus Streptomyces are renowned for their production of useful secondary metabolites including antibiotics. The work described in this thesis provides new insights on the role and regulation of antibiotic production and resistance in these bacteria.

In most applications, electrocatalysts exhibit a large surface area to volume ratio, for example using nanoparticles.

During post-embryonic development into adults, animals face an environment that fluctuates constantly. For example, in nutrient availability, temperature, and osmolarity (e.g., salt concentration).

The key characteristic of active matter is the motion of an emergent collection (such as a flock of birds), which is driven by the consumption of energy by its active components (i.e. individual birds).

To limit the effects of climate change, global average temperature since pre-industrial measurements are to be kept well below 2 °C preferably even at 1.5 °C.

Sound is everywhere in the marine environment and hearing is therefore a very important for stimuli for fish. They use sound for orientation and communication, during migration, aggregation and spawning, but also for detection of prey and predators.

In this thesis, I study the formation of large-scale structure and the physics of particle acceleration at large scales (~Mpc).

The filamentous bacteria Streptomyces are widespread inhabitants of terrestrial soils.

On April 14 we will celebrate the launch of our Faculty action plan ‘diversity and inclusivity’ with a symposium. We will present the action plan and our colleague Professor Tomas Brage will be keynote speaker. He is the Director of Education at the Physics Institute of Lund University in Sweden and…

Due to the COVID19 crisis (especially the impossibility to meet in person), the course "Foundations of Research-2" could not take place as scheduled. However, a second opportunity to participate in this course in October will be offered. The course is aimed at PhD students who are about halfway…

Workshop, 21-22 June On 21-22 June, Dr. C.V. Weeda (Leiden University) and Marie-Louise Leonard (University Ca’ Foscari Venezia) organize a workshop on Worker's health and material environment in Port Cities. The workshop focuses on interdisciplinary discussion. ReMA-students are given the opportunity…

The Synergy Award aims to connect PhD students with academic and non-academic professionals to explore the practical dimensions of their research. Four candidates will be invited to pitch their compelling impact ideas to a jury at Synergy 2021. Each pitch will also be broadcast to a live audience during…

Lezing

Een masteropleiding vergroot je kansen op de arbeidsmarkt en opent deuren naar uitdagende functies. Na je driejarige bachelor kun je direct doorstromen naar een één- of tweejarige master aan de Universiteit Leiden of een andere instelling.

Een masteropleiding vergroot je kansen op de arbeidsmarkt en opent deuren naar uitdagende functies. Na je driejarige bachelor kun je direct doorstromen naar een één- of tweejarige master aan de Universiteit Leiden of een andere instelling.

Een masteropleiding vergroot je kansen op de arbeidsmarkt en opent deuren naar uitdagende functies. Na je driejarige bachelor kun je direct doorstromen naar een één- of tweejarige master aan de Universiteit Leiden of een andere instelling.

Een masteropleiding vergroot je kansen op de arbeidsmarkt en opent deuren naar uitdagende functies. Na je driejarige bachelor kun je direct doorstromen naar een één- of tweejarige master aan de Universiteit Leiden of een andere instelling.

Word een expert op het gebied van migratie- en diversiteitsrecht met een multidisciplinaire focus. Naarmate samenlevingen steeds diverser worden, bereidt dit programma je voor op het aanpakken van de juridische uitdagingen die wereldwijde migratie met zich meebrengt. Je leert het recht te begrijpen…

Last week, the sad news reached us that Dr Jan Schmidt passed away on 11 August 2025. We wish his partner, friends and family strength and comfort as they cope with this loss. Jan Schmidt will be remembered as one of the most prolific and learned scholars in the field of Ottoman codicology and histo…

This course uses the lives, ideals and achievements of Theodore, Franklin, and Eleanor Roosevelt to create the idea of a Rooseveltian century. It is an invitation to think critically and historically, and it wants to give you a glimpse of what it means to be a historian at work.

How Perceived (In)Visible Dissimilarity Relates to Feelings of Inclusion at Work

During the summer, we organize a summer school for researchers who want to learn about communicating science to diverse audiences. The summer school is aimed at researchers in any career stage who are new to science communication. The Summer School is open for all disciplines in science, including social…

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