It often takes longer for women with heart problems to get the right diagnosis. In her Annie Romein-Verschoor Lecture, Professor Hester den Ruijter will talk about how hormones influence the heart and the importance of medical research that focuses specifically on women.

Effects of maternal smoking, premature birth, intra-uterine growth retardation and asphyxia on child development.

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Exactly a century ago, astronomers observed the first two diffuse interstellar bands (DIBs) in space. A DIB manifests itself as a colour of light that is missing in the radiation from stars behind an interstellar cloud. Although about 500 DIBs are yet discovered, they remained inexplicable until recently.…

Mathematics students Pim Spelier and Bob Zwetsloot both won a medal at the International Mathematics Competition for University Students (IMC) 2018 in Bulgaria. Spelier talks about the competition, his preparations, and a mistake that almost costed him his good ranking.

Particle lab CERN gives the green light for the test phase of an experiment that aims to produce dark matter particles. Physicist Alexey Boyarsky is one of the initiators.

The excuses for the slavery past? It would have been better if the cabinet had taken some more time on that, thinks university lecturer and Atlantic slavery expert Karwan Fatah-Black. 'Too bad they didn’t wait for the results of the study.'

For many teachers, they are a lifesaver: the people at the Science Teacher Support Desk. When a teacher has technical problems, they come to the rescue immediately. Veerle Warnders is one of them and she tells us what is so great about her job.

The International Network for School Attendance launched an inaugural conference in Norway, playing host to 14 countries, 254 participants. Lead of this international network for the Netherlands is psychologist David Heyne of Leiden University.

Antibiotic resistance is an economic problem. Pharmaceutical companies cannot earn much from antibiotic research, so they do not invest in it. This makes it important that universities do so, says Ned Buijs.

Research by bioarchaeologists from Leiden and Canada has shown that 19th-century Dutch farmers regularly had bone defects. These may have been caused by wearing clogs. Publication in the International Journal of Paleopathology.

Psychologist Omar Burhan discovered in his study of nepotism that the hiring of kin, even if they are competent for the job, makes people feel they are procedurally being treated unfairly. However, certain people are liable to believe that effective leaders transfer their traits to their offspring.…

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Prof. dr. Pancras Hogendoorn is stepping down as dean of the Faculty of Medicine and vice-chair of the Executive Board of Leiden University Medical Centre (LUMC). He is also resigning from all associated secondary posts. Hogendoorn has taken his decision in anticipation of the findings of an inquiry…

The construction of 285 student studios on land owned by Leiden University is a step closer. On Thursday, student housing organisation DUWO and the Real Estate department of the University signed the leasehold agreement for the parcel of land in the Oegstgeest part of the Leiden Bio Science Park.

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.

Leiden University has selected an architect for the realisation of its new beta-campus. As a team, Designers bureau Inbo in Rotterdam and JHK Architects have won the tender for phase 1, the new housing estate for the Faculty of Science.

The Dutch biotech start-up In Ovo is the first company to develop a large-scale solution for determining the sex of a chick while it is still in the egg. This fast and cheap technique can be applied mechanically at hatcheries, which was not possible before.

Leiden chemists Marc Koper and Ian McCrum have discovered that the degree to which a metal binds to the oxygen atom of water is decisive for how well the chemical conversion of water to molecular hydrogen takes place. This insight helps to develop better catalysts for the production of sustainable hydrogen,…

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After almost four decades, Leiden and Eindhoven chemists have resolved the discussion about the correct model for the simplest chemical reaction in heterogeneous catalysis, which is essential for fuel cells. Using a unique curved platinum surface, Ludo Juurlink and PhD candidate Richard van Lent from…

Schools are essential to children’s development and provide numerous options for growth. They also facilitate learning beyond the classroom and give children tools that support their social and emotional development. But each child is different and some children have communication problems. How can…

On 30 April, Prime Minister Mark Rutte was presented with the manifesto of the NWO Youth Challenge, which contains advice for policymakers, scientists and administrators on the empowerment of youth in the time of coronavirus. The manifesto is based on research questions submitted to the science community…

Pui Chi Lai (35) has a lot on her plate, being a study adviser and coordinator of studies for two bachelor's programmes and two master's programmes. Alongside her job, however, she does not sit still and follows a PhD trajectory at the University of Macau.

A consortium of international researchers comes with a unique solution to the energy problem. By mimicking photosynthesis, they aim to produce sustainable fuels out of sunlight, water, and CO2. Their secret? ‘Soap bubbles’, says Leiden chemist Sylvestre Bonnet, who is part of the consortium.

Jelle van Buuren bespreekt de link tussen radicalisering en psychiatrische problematiek.

A new challenge for Felix Ameka. The senior lecturer at the Centre for Linguistics has been appointed professor by special appointment of Ethnolinguistic Vitality and Diversity in the World. ‘I am looking forward to promoting ethnolinguistic diversity and vitality.’

On 29 June 2017, Doris Dull-Zessner defended her PhD dissertation “Value Congruence in a Multinational Corporation”. The defence was at 12.30 hrs, in the Academy Building of Leiden University, Rapenburg 73. The supervisors are Professor J.A.A. Adriaanse and Professor J.I. van der Rest.

Not all problems are easy to solve, but with enough bright minds, you make progress step by step. ‘The kind of problems I am interested in have been occupying mathematicians for over two millennia,’ says theoretical mathematician David Lilienfeldt. In September, he started at the Mathematical Institute…

This dissertation studies the Asymptotics of Bayesian nonparametric inference for Gaussian linear models.

‘Culture change takes time,’ said Vice-Rector Hester Bijl at the closing panel of the University’s Diversity Symposium on 26 January. She talked about the road to a diverse and inclusive university. The symposium provided plenty of concrete examples of small steps that can already be taken.

Following years of negotiations between Member States and the European Parliament, there’s finally been a breakthrough for migration policy. What does it mean for the Netherlands, exactly? Mark Klaassen, Assistant Professor in Immigration Law, discusses this on various media channels.

Following Trump’s resounding victory over his Republican arch-rival in Iowa, it's clear that standing by passively and giving Biden the benefit of the doubt is not an option. Luuk van Middelaar, Professor of Foundations and Practice of the European Union and its Institutions, warns in his column in…

Development of micro-scale analytical tools to be used to address relevant biomedical questions in the field of neuroscience, and other application areas intrinsically dealing with small sample amounts.

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The research group headed by Leiden chemist Marc Koper has discovered a catalyst that minimizes the production of chlorine gas during salt water electrolysis. The invention can enable the direct production of hydrogen from seawater. The article has been published in the Journal of the American Chemical…

Microneedles are a promising tool for the painless administration of vaccines through the skin. But, are these minuscule needles really effective? PhD student Pim Schipper of the Leiden Academic Centre for Drug Research investigated various factors of vaccination via the skin and discovered, among other…

Earlier this year, Spain passed a law that legalises euthanasia and assisted suicide. Spain is now the fourth country in Europe with such a law. Its introduction, however, is not plain sailing.

... together our steps make the journey!

The Copenhagen interpretation of quantum mechanics states that a measurement collapses a wavefunction onto an eigenstate of the corresponding measurement operator.

The number of students suffering from stress and anxiety has decreased slightly compared with 2021. But around half still suffer from mental health problems. This is according to the National Mental Health and Substance Use Monitor.

Two things are needed to produce fuel from sunlight: an antenna that harvests light, and a light-driven catalyst. The most efficient antennae contain bacteria. An international team headed by Huub de Groot imitated them and discovered how they function.

Alumnus Peter Burger – along with his colleague Alexander Pleijter – is the face of fact-checking in the Netherlands. ‘My degree led straight to this.’

Her book ‘Veel valse hoop’ (Much False Hope) about the persecution of the Jews in the Netherlands was immediately hailed as a seminal work. German historian Katja Happe gave the Cleveringa Lecture on 26 November. She is fascinated by what makes people take a stand.

The response of international organizations to the problems of cross-border death and gift taxation needs to be revisited, according to PhD candidate Vassilis Dafnomilis. PhD defence on 3 June 2021.

A Preventive Intervention Team that investigates children with behavioural problems and trains their social skills in order to prevent school dropout and other, more serious problems. This is a strategy that Leiden University and the municipality of Amsterdam have been using for several years already,…

Whales in the vicinity of the city of Auckland, New Zealand consume large amounts of microplastics every day. A team of international researchers reached this conclusion after carefully examining whale poop. The team included Thijs Bosker, Associate Professor in Environmental Sciences at Leiden University…

E-mails are not the first thing that comes to mind when thinking about sustainability. Yet, your e-mails can add kilos of extra CO2 to the atmosphere each year. Students from the LDE Bachelor Honours Programme Sustainability tackled these and other sustainability challenges on behalf of partner organisations.…

When foreign matter enters our body, our immune system has to make a choice whether or not to go on the attack. There are times when the system goes wrong, and we end up with an illness or an allergic reaction. Researchers at LUMC are trying to steer the immune system. The dossier on Immunity, Infection…

The annual conference of the Global Transformations and Governance Challenges (GTGC) interdisciplinary research programme will take place in The Hague on 7-9 June. Why should you be there? ‘The problems in the world affect us all. This conference will be looking at planetary governance’, says programme…