Citizen science has recently become a widely used term, but what does it mean exactly? How does citizen science compare to crowdsourcing? And where does community archaeology stand in this discussion?

In this sub-project a selected number of narrative texts will be examined written in the Eurasian realm in the period 1300-1800, focusing on representations of kingship and royal authority.

Researchers of the Leiden Institute of Advanced Computer Science (LIACS) will develop a training programme the next generation of early stage researchers (ESRs). During a four years project they will be trained to approach industrial challenges in a holistic manner by developing solutions in an automotive…

About nine million people worldwide contract tuberculosis each year. Research into new treatment for this disease has received fresh stimulus with more efficient techniques and a new understanding of how the tuberculosis bacteria works.

Read more information about Leiden, the student city. The city has everything you’ll need to turn your time as a student into the time of your life!

Leiden is a real student city! We would love to tell you more about the student life as an Advanced Master student International Children's Rights.

What are the critical elements in sonic materialization of fixed media electroacoustic music and how can these parameters be classified? How would interpretation be defined in performing fixed media music? What are the creative and new ways of presenting fixed media music by incorporating all the presentation…

Leiden Institute of Advanced Computer Science (LIACS)

Why are mycobacteria such successful pathogens? And are there defence mechanisms in the body that help reduce an infection? To find out, Annemarie Meijer has been awarded the NWO Open Competition ENW-XL grant. She will not explore this quest alone. Five other leading Dutch research groups are participating…

Jos F. Brosschot has been appointed as a professor by special appointment on the chair ‘psychophysiological mechanisms of stress in daily life’. This chair has been created by the Foundation for Research into Psychosocial Stress.

The surface of platinum electrodes changes much more during use than was previously thought. In a collaboration between the Leiden Institutes of Chemistry and Physics, chemists Leon Jacobse, Yi-Fan Huang and Marc Koper, and physicist Marcel Rost have been able to show this for the first time. Publication…

Science, Institute of Environmental Sciences (CML)

Using musical cues to learn a physical task significantly develops an important part of the brain, according to a new study co-authored by Leiden psychologist Rebecca Schaefer. The results are published in the journal Brain & Cognition.

To relieve a patient's pain, it can be effective to induce expectations. This finding is promising for optimising the effectiveness of treatments, conclude Kaya Peerdeman and colleagues in their article in PAIN.

If you imagine in advance that something is not going to hurt, this could mean you experience less pain. This discovery was made by health psychologist Kaya Peerdeman during her PhD research on the placebo effect. PhD defence 7 February.

Our vision of stress is starting to change fundamentally. We can suffer stress without even being aware of it, while sleeping as wall as during the day. Professor of Psychology Jos Brosschot will discuss this phenomenon in his inaugural lecture on 2 December.

Do you want to be successful at stopping smoking? If so, the main thing is that you should see yourself as a non-smoker. Psychologist Eline Meijer has discovered that smokers who are unable to do this are more likely to resume smoking. This is more common among smokers from a lower socio-economic background.…

As a psychologist and pilot, Bert Busscher is interested in the phenomenon often termed as fear of flying. Busscher discovered that the heart rate of a person undergoing a therapeutic flight shows how much they still suffer from fear of flying. The post-flight heart rate can even predict whether the…

When oil is harvested from the seeds of the oil palm tree, the fruit residue can be used to make bio-ethanol. However, it can also be used as a fertilizer on palm tree plantations; which option is best for the environment? Edi Wiloso compared the two green options at the Institute of Environmental Sciences…

Bacteria and fungi on organic dairy farms are significantly different from those on conventional farms. That was discovered by postdoc researcher Sofia Gomes and her supervisors Nadia Soudzilovskaia and Peter van Bodegom in collaboration with the Louis Bolk Institute and Naturalis Biodiversity Centre.…

Research and design are two activities that are becoming increasingly important in the Dutch subjects O&O (‘research and design’) and NLT ('nature, life and technology’). The dissertation of Tessa Vossen (ICLON and Faculty of Science) indicates that teachers and students understand the importance of…

Science, Institute of Environmental Sciences (CML)

If mankind wants to survive into the 22nd century, we will need to change the way we live drastically. The human impact on our planet is everywhere, we are changing the atmosphere, the oceans and the land, leading to global warming, climate change, loss of biodiversity and pervasive pollution. There…

They were called 'annoying brats', the group of campaigning scientists who in 1978 founded what is now an internationally acclaimed ecological research institute. Their stories and those of the current staff of the Institute of Environmental Sciences are described in the book 'Forty years of Leiden…

Which brain cell does what, when Parkinson's disease arises? It won't be long before this jigsaw is solved piece by piece. Ahmed Mahfouz, computational biologist, combines bio-knowledge from Leiden with algorithms from Delft and is getting closer to finding the key.

Leiden University and the Municipality of Leiden worked together on the development of the Schilperoort Park. This new public space is situated in the north-eastern part of the Leiden Bio Science Park. The park ambience is extended into the adjacent residential area, where former medical laboratories…

This part of the research programme is carried out by Prof. Dr. René Cappers. It focusses on the continuities and changes in the use of plants at Late Neolithic Tell Sabi Abyad, as well as on their implications as proxy evidence for the climate change c. 6200 BC. Parallel to the design of the other…

Undoubtedly, climate change and increasing human populations will affect Africa’s wildlife – but how exactly? And what can be done to conserve nature? Michiel Veldhuis formulated five testable hypotheses of what might happen and now investigates how the UN Sustainable Development Goals can be achieved.…

The aim of this PhD dissertation is to explore the link between foreign investment and macroeconomic performance in the context of a colonial economic structure in Indonesia between c. 1910 and c. 1960.

The Old Obervatory Leiden is one of the partners of the local learning ecosystem ‘Verwonder om de Hoek’, an educational platform from Leiden that lets school children and families wonder about the world of Nature, Science, Technology and Sustainability. On this page you will find the educational programmes…

The local ordering of atoms at the surface of a metallic particle determines its catalytic activity and selectivity. As energy systems of the future will be based on efficient catalytic conversion of small molecules in closed cycles, we study how structural effects of catalysts can be used to our ad…

Prof. Elizabeth de Lange is concerned with the allocation of resources for the conduct of science towards the goal of best serving the public interest. Also, while she underscores that there is still the need for using animals in drug research, she is concerned about this use, and advocates the use…

To get a feeling of how we operate at LED3 when it comes to Early Drug Discovery, please browse through our case studies. When you select a case study you’ll find relevant contacts.

What is the effect of light at night on plant phenology and physiology, and how does this affect plant interactions with other species?

Governance of Sustainability is a two-year programme, worth 120 European Credit Transfer System points (ECTS).

How to access the end-of-supply risk of spare pares using big data analytics

The Hague is a real student city and has everything you’ll need to turn your time as a student into the time of your life

In this project innovative technology for photovoltaics cells is developed and analysis of ecological and health related risks are explicitly accounted for.

Social anxiety runs in families, but the neurobiology underlying this genetic vulnerability is until now largely unknown. The unique Leiden Family Lab study on Social Anxiety Disorder (LFLSAD) aims to broaden our knowledge with respect to this genetic susceptibility.

Where and how are critical materials currently used and how can this information be used to develop scenarios about their future demand.

LACDR adheres to strict data management rules, with the aim to make our data findable, accessible, interoperable and re-usable. For this reason all LACDR PhD candidates are required to prepare a data management plan and to implement data management rules accordingly. All PhD candidates follow a data…

The overall aim of this project is to understand, on the molecular level, how the bacterium V. fischeri cells interacts with their squid host.

Computers are capable of making incredibly accurate predictions on the basis of machine learning. In other words, these computers can learn without intervention once they have been pre-programmed by humans. At LIACS, we explore and push the borders of what a revolutionary new generation of algorithms…

Cognitive decline (amongst other problems with attention, concentration, memory) is a common symptom in patients with a variety of brain disorders and has been related to healthy ageing as well. People suffering from cognitive deficits are often significantly hampered in their day-to-day functioning…

How can we quantify the density of species within a community through environmental DNA concentrations?

This functional genomics project aims at understanding the biology of the underlying mycelium differentiation and autolysis processes in much more detail.

Leiden is a picturesque university city that’s brimming with history and boasts a student culture that’s tangible just about everywhere. The university has contributed to the city’s unique atmosphere for over 400 years, since its founding in 1575. Leiden’s historical centre is full of student associations,…

On this page you find all the ways through which the Institute of Psychology aims to foster Open Science.

In this unique master’s programme you will first deepen your knowledge on specific areas of the world and then learn to reflect upon this in a global context.