How do the residents of the Kooi neighbourhood in Leiden find living there? What can we do about loneliness? In this extraordinary academic year, students have been conducting all sorts of research, in Leiden. They presented their initial findings and recommendations at a Learning with the City meeting…

The lyrical documentary about Leiden by American anthropologist Mark Neupert has become a hit. Leiden anthropologist Janine Prins taught Neupert the finer points of the subject in the course on Visual Methods offered by Anthropology. What does she think of Neupert's observation? ‘He's gone completely…

All supermassive black holes in the centres of galaxies appear to have periods when they swallow matter from their close surroundings. But that is about as far as the similarities go. That's the conclusion reached by British and Dutch astronomers from their research with ultra-sensitive radio telescopes…

Students taking the new bachelor’s course ‘Social Movements and Political Violence’ are about to do something new. In addition to studying textbooks and academic articles, they will actively work with multimedia materials and engage in online storytelling. Course instructor Corinna Jentzsch (Leiden…

The journal Philosophical Transactions of the Royal Society – Biological Sciences published its theme issue ‘Conflict across taxa’ on 4 April, which was edited by Professor of Social and Organisational Psychology Carsten de Dreu. Together with researchers from other disciplines he provides more insight…

On August 27 – 31 2019, PhD candidate Maria Vasile participated in the IUAES 2019 Inter- congress in Poznan, Poland entitled "World Solidarities" and shares some of the insights from presentations she attended and found particularly relevant to the Food Citizens project.

PhDArts candidate Ruchama Noorda will graduate on Wednesday 9 December 2015

The large-scale project NanoInformatics will assess the risks associated with nanoparticles. The project will be funded by the EU with 6.8 million euros and was launched at the beginning of this year. Three scientists from Leiden are involved. 'For the first time, this project combines the various experts…

How dangerous are micro- and nanoplastics? Do they affect the environment? What harm can they do to our bodies? Questions that we can now finally answer because of Fazel Abdolahpur Monikh. Together with his colleagues, he developed a method to detect and quantify nano-sized plastics. Their paper has…

Bioenergy with carbon capture and storage (BECCS) is a promising method for removing carbon dioxide (CO2) from the atmosphere and simultaneously generating energy. Yet this method is controversial, as it may require a great deal of land and water. Researchers at Leiden University have now proposed a…

New sampling and analytical strategies give archaeologists a better understanding of the nutrition and survival of ancient populations. Publication in PLOS One.

The third and final introduction week at Leiden University is in full swing. Orientation Week Leiden (OWL for short) is giving a record 1,378 new international students the chance to get to know the city and one another. We got the lowdown from the new arrivals at OWLands Festival.

Smallholder farms in tropical regions can double their crop production by 2030 compared to 2015, a study finds to which José Mogollón (Institute of Environmental Sciences) contributed. But to achieve this, the farmers must increase the input of phosphorus beyond what is currently foreseen. The study…

It may well be that only male zebra finches can sing, but the females are faster at learning to discriminate sounds. Leiden researchers publish their findings in the scientific journal Animal Behaviour.

For thousands of years, beavers had a big influence on the Dutch ecosystem and the people that lived there. This is the conclusion of research by archaeologist Nathalie Brusgaard.

Underwater noise from seismic surveys affects the behaviour of Atlantic cod. These are the results of research by Leiden biologists in collaboration with colleagues from Belgium. During such surveys the fish are less active than usual and their circadian rhythm is disrupted; soon after exposure they…

To generate renewable energy takes more space than one might think. New research by environmental scientist Paul Behrens and master's student John van Zalk shows how much space is needed for nine specific types of energy. Biomass, hydro and wind, while vital, take up the most space. Natural gas and…

On 22 June 2022, the research group on Institutions for Conflict Resolution organised its second annual overarching PhD lab. During this meeting, the PhD researchers connected to COI presented the current status of their research projects.

Getting up at 5 AM, strolling through rain and looking at a dirty diaper: students of the Honours College Archaeology endured it all. For their class ‘Future cities, urban pasts’ they mapped the city of Leiden in various forms. ‘This honours track demonstrates how we can take archaeology a step furt…

Toxys, Leiden University and Leiden University Medical Center have agreed immediately to commercialise and also develop further the ToxProfiler technology invented at the two institutions. ToxProfiler allows for rapid toxicity hazard identification of novel and existing drugs, chemicals, and other substances.…

With the lecture 'China and a complicated world', a lucky draw, and of course lots of food and drinks, the Faculty of Science celebrated the year of the dog. An international mix of staff and students took part in this third local edition of the lunar new year celebration.

Researchers from the Institute of Environmental Sciences (CML) identified six top priorities where environmental interventions can make the most difference. By doing so, they hope to help researchers and policymakers make the most out of the limited, available resources to protect people and the pla…

Leaf-eating caterpillars greatly enrich their intestinal flora by eating soil. Even effects of plants that previously grew in that soil can be found back in bacteria and fungi in caterpillars. Researchers from the Netherlands Institute of Ecology (NIOO-KNAW) and Leiden University write about this discovery…

Throughout the 17th and 18th centuries, the city of Batavia was supplied with produce by its hinterland, known as the Ommelanden. Bondan Kanumoyoso studied the history of the various ethnic groups that populated this area and in doing so has shed light on the structure of modern-day Indonesian society.…

Paul Kloeg is a PhD student in the ERC granted research project 'An Empire of 2000 Cities: urban networks and economic integration in the Roman empire', directed by Luuk De Ligt and John Bintliff (Archaeology).

More than twenty students were awarded an ALGANT diploma, the prestigious two-year master's in Algebraic Geometry and Number Theory from the Mathematical Institute of eight collaborative Universities on July 18th. At the graduation ceremony in Padua, Italy, five students who had spent their second year…

The Sustainability Prize of the Leiden University Green Office and the Local Chamber of Associations has been won this year by student association Catena. In the shadow of the corona pandemic, Catena worked exceptionally hard to improve sustainability.

17 November is International Student’s Day, dedicated to showcasing the international experience of international students in the Netherlands.

Bachelor's students Larissa van Beckhoven, Eeke Brussee and Mirjam de Haan were granted the Speckmann award for their Fieldwork NL report ‘Een Tastbaar Mysterie’ (supervisor: Bregje ter Meer). Alumnus Markus Enk received the Master's Speckmann award for his innovative thesis called ‘Do spirits resist…

China’s booming aquaculture industry is increasingly dependent on fishmeal made from wild-caught fish, a practice that depletes wild fish stocks. A new study conducted by institutions including Leiden University and Stanford offers a more sustainable path. The study appeared in the journal Science on…

Are you keen to immerse yourself in a new culture, broaden your horizons and make friends for life? If so, come to the Study Abroad Festival on Friday afternoon 14 October.

Looking at the photograph above, it’s hard to realise that this was once the area around the Wijnhaven.

During the final event of the PRE-Class Rechtsgeleerdheid, secondary school pupils organised a mock trial on the impact of artificial intelligence (AI) on society. Together with the audience, they explored the possibilities and pitfalls of AI. ‘They all did a wonderful job.’

To celebrate the end of the semester the Science and Humanities Buddy Programme organised a barbecue together, which has become a small tradition. The barbecue marks the third co-organised activity between the two Programmes and helps to bring international and Dutch students together. The Buddy Programme…

To what extent do nanoparticles accumulate in plants and animals, and what properties of the particles play a part in this? Willie Peijnenburg, professor of Environmental toxicology and biodiversity was awarded a Marie Curie grant to conduct research on the environmental effects of nanoparticles.

The enormous adaptability of the cholera bacterium explains why it is able to claim so many victims. Professor Ariane Briegel from the Leiden Institute of Biology has now discovered that this adaptability is due to rapid sensory changes in the bacterium. Publication in PNAS.

A new health programme will reward patients with - or at risk of developing - cardio-vascular diseases for keeping to a healthy lifestyle. A research group including psychologist Andrea Evers has been awarded 2.5 million euros by the Dutch Heart Foundation and the Ministry of Public Health, Welfare…

The doctrine of German philosopher Friedrich Nietzsche is complex, contradictory and open to a range of different interpretations. As a result, his legacy has been adopted by both violent fascists and liberal pluralists. However, as James Pearson shows, the true Nietzsche lies somewhere in between these…

Professor Jan Willem Erisman is happy with the freedom at our University. But frameworks are needed, he believes. That is why he makes a proposal for such a framework from the perspective of his own profession. In fact, he makes a proposal for a wonderful ambition for Leiden University.

A wide range of plant species is essential to our earth because of the different materials and foods these plants provide. But plant diversity has decreased drastically in recent decades. PhD candidate Kaixuan Pan explains what we can do to increase it once again.

Iranian molecular plant biologist Salma Balazadeh started her career in Germany. Now she sets up a research group in Leiden to study stress in plants to secure global food supply. Her outlook on women in science in the context of the International Day for Women and Girls in Science, 11 February.

The widely used pesticide thiacloprid can cause a large-scale decline in freshwater insects. This was discovered by researchers from the Living Lab in Leiden. For three months they counted the flying insects in the 36 ditches of the lab. Their research appeared in PNAS.

In the new board game Epoch – Early Inventors you explore the prehistoric landscape. You gather food and raw material to develop tools and skills, and you try to appease the gods. Dr Maikel Kuijpers was involved in its development from the start and he is very happy with the result. “There is a lot…

Is polder rice a feasible circular alternative for cows on peatland? A pilot experiment started this week. On May 22nd, researchers from Leiden University and Wageningen University & Research (WUR) planted roughly 3,000 rice plants on the Polderlab near Leiden. The researchers want to test rice as a…

Predicting whether someone will fall ill and which treatment will benefit them most: that is the aim of the techniques that Professor of Analytical Biosciences Thomas Hankemeier and his research group are developing at Leiden University. In order to scale up and further develop this technology, he works…

Martijn Verkuilen is the winner of the Unilever Research Prize 2022. By transferring DNA from a plant into yeast, he made the first move to produce a new drug for type 2 diabetes. He collected his prize in Wageningen on 24 November.

The Laboratory of Material Culture Studies welcomes two new researchers in October 2013. Dr. Christina Tsoraki and Dr. Benjamin Tun-Yee Chan, both from the Department of Archaeology of the University of Sheffield, received a Marie Curie research fellowship and will perform their research for 24 months…

A big performance by André Rieu, food trucks in The Hague and more contact with the Royal Family: grand plans were announced in April to make the State Opening of Parliament (Prinsjesdag) a real ‘crowd puller’. For this year, however, we will just have to make do with slight differences in emphasis.…

What happens to the different waste streams?