Bacteria whirl around in the mouths of most people, forming dental plaques and sometimes causing nasty gum infections. Treponema denticola might be a dangerous pathogen, but not much is known about this bacterium. It was up to Ariane Briegel and her research group to change that.

Just like scientific articles, patents cite scientific literature to support their findings. These references provide valuable information on how science is used to develop practical applications. However, extracting this information from patents is not that simple.

We want to make it easy for you to do your work at Leiden University. Find out how to submit queries, get help, log issues or request other services.

On Friday 22 March, the Effective Protection of Fundamental Rights research programme held a successful Annual Research Day (Toogdag) in Gravensteen building. This year’s theme was ‘The Concept of Justice in a War Era: The Cases of Gaza, South Sudan and Bosnia and Herzegovina’.

The project officially started in September 2020, but with the enrolment of PhD students Hanum Atikasari and Shajeela Shawkat the research team of the ERC project 'Globalizing Palliative Care? A Multi-sited Ethnographic Study of Practices, Policies and Discourses of Care at the End of Life' is compl…

With the addition of over 16,500 new catalogue records, the collection of Johannes Tiberius Bodel Nijenhuis (1797-1872) is now almost entirely searchable online. The private collection of the Leiden map collector laid the foundation for the special collection of maps and atlases of Leiden University.…

Roll-up solar panels, bendable phone displays, or better computer chips… The EU project STIBNITE investigated the next generation of semiconductors, made from organic materials based on carbon, nitrogen, and boron. The project has now concluded. During the Open Science Debate on 1 July, the group will…

Practice and science show that secure residential youth care in the Netherlands should no longer be used as a catch-all solution. This is the conclusion of several professionals including Professor of Child Law Mariëlle Bruning in Dutch newspaper NRC.

Your workplace is equipped with a standard basic software package. In addition, you can also install programmes yourself from the additional software package. If you need software that is not available via the additional or basic software package, you can apply for the software you need.

Parents are not always heard before their children’s placement in care is extended. They can only have their say if they ask the judge for a hearing themselves. ‘It should be the other way round,’ says Mariëlle Bruning, Professor of Child Law in a ‘De Nieuws BV’ broadcast.

What if seriously ill patients do not want to hear their diagnosis? Does a clinician always need to provide a patient with all available information? Communication researcher Liesbeth van Vliet, medical anthropologist Annemarie Samuels and research intern Fiona Brosig will put these questions on open…

Does medicine make patients feel better or worse? We are getting better at predicting this from people’s DNA profiles, says Professor Jesse Swen. ‘It never fails to fascinate me how one DNA base pair can have such a huge effect on treatment with medication and the outcome.’

How do you behave towards patients with life-threatening conditions who do not want to know all the details of the state of their health? This question brought psychologist Liesbeth van Vliet and anthropologist Annemarie Samuels together. It’s an unusual partnership, but their interdisciplinary approach…

All staff members have their own profile page on the website. These pages include information about your work location and how you can be contacted. Are you looking for a colleague? Type his or her last name, first name, or first and last name in the search bar of the website.

More and more people worldwide have infections caused by bacteria that are resistant to many types of antibiotic. Why is this and how big of a problem is it?

At the request of the Dutch Parliament, Professor Marielle Bruning, Dr Kartica van der Zon (Dept. of Child Law), Professor Lenneke Alink and Dr Sabine van der Asdonk (Education and Child Studies) have produced a fact sheet on the placement of children in care in the Netherlands.

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In Maileon, you have the role of editor, but there are other types of users with different permissions.

Better health for all the residents of The Hague region. This is the mission of Health Campus The Hague – formerly LUMC Campus The Hague. Eight partners – the LUMC, Leiden University, the municipality of The Hague and five healthcare institutions (see box) – are collaborating intensively in healthcare…

How unique is the human capacity for learning and adapting to an environment? In field research – in the rainforest and Artis Zoo – primatologist Karline Janmaat is studying how humans and other primates adapt to their environment in their search for food. She will give her inaugural lecture as Professor…

Veel Nederlanders hebben fysieke, psychische en sociale problemen tegelijk. Zij hebben hulp nodig van meerdere professionals uit verschillende organisaties. Fia van Heteren onderzoekt hoe deze professionals met elkaar én met cliënten samenwerken, en welke factoren deze samenwerking versterken of bel…

In hun klinische stage leren Psychologiestudenten mentale steun bieden aan anderen, maar hoe zorgen zij als toekomstige therapeut ook voor zichzelf? Met video’s, podcasts en een panel wil Kelly Ziemer haar studenten de nodige zelfzorg-skills bijbrengen.

The research project 'when patients don't want to know everything: guide and training for culturally sensitive information in palliative care' investigates how healthcare providers can offer inclusive palliative care.

Recently, the Dutch Health and Youth Care Inspectorate sounded the alarm about the state of the Dutch youth care. What is going wrong and what needs to be done? In a special broadcast from youth care institution Via Jeugd, Op1 talks to adolescents, staff, State Secretary Maarten van Ooijen, and Professor…

This February, Leiden University honors two scholars who have responded to the challenges of modern society in important, innovative and exemplary ways. Catherine Malabou and Safiya Umoja Noble will receive honorary doctorates for their ground breaking research in philosophy and internet/media studies…

What happens in our bodies when we care for children? And why are some people more caring than others?

On 5 November 2021, Professor Michiel van de Sande of the Department of Orthopedics in the Leiden University Medical Centre (LUMC) delivered his inaugural lecture ‘The Art of Doing and Doing Nothing’. Van de Sande used the opportunity to explore both physical and philosophical aspects of co-decision…

Collaborating and learning from other fields – that is what bioinformatician Hannah Augustijn enjoys most about doing research. During her PhD at Leiden University, she developed new ways to search within bacteria for the antibiotics of the future.

Suzan Verberne has been appointed professor of Natural Language Processing at the Leiden Institute of Advanced Computer Science (LIACS) from 1 October. Verberne has been at LIACS since 2017 as group leader of the Text Mining and Retrieval group.

After a turbulent Covid year, the well-being of our students and staff has the highest priority. How can we prevent physical and mental health problems? This was the key question at the Opening of the Academic Year in Pieterskerk in Leiden on 6 September.

Leiden University offers housing facilities for international PhD's and other visiting academic staff. Read about the application process for university housing. If you need tenants for your apartment or family house in Leiden and its surrounding area, we will gladly help you rent it to our international…

The 16-year-old girl was staying in a closed juvenile care institution where, among other things, she was administered 'pain stimuli'. The charges are the first of their kind, says Mariëlle Bruning, Professor of Children and the Law, to Dutch newspaper the Volkskrant.

The world is currently beset by many problems. The armed conflict and continuing violence in Israel and the Palestinian territories is resulting in numerous casualties. This is giving rise to many emotions and reactions worldwide, and also greatly affecting our own university community. We have seen…

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.

Months after the case of the abused foster child from Vlaardingen (Zuid-Holland) came to light, many questions still remain. Why was the child not listened to? Marielle Bruning, Professor of Child Law, discussed this with NOS, NPO Radio 1, NRC and Nieuwsuur.

The Development and Alumni Relations department maintains contact with Leiden University alumni to stimulate and strengthen our alumni’s involvement with the University. If you wish to know more about our alumni, or organise an alumni event, do not hesitate to contact us.

Here you will find an overview of all communication departments within the university.

Bubble baths and face masks: that’s what we often see on social media when discussing self-love. However, is this a true reflection of what self-love and self-care entail? In this episode, psychotherapist Kelly Ziemer teaches us more about what true self-love and self-care are, and their importance.

In September 2025 Leiden University hosted a greatly successful academic conference "Care and the Jewish Experience" organized by the Leiden Jewish Studies Network. Among our guests and presenters were academics from many universities, many disciplines and at different stages of their academic caree…