561 search results for “chemische we ons” in the Public website
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‘Cleveringa was more than a one-day hero’
In his biography about Professor Rudolph Cleveringa, Kees Schuyt adds to the image we already have of this famous Leiden professor. The overriding focus is generally on Cleveringa’s protest speech against the Nazis, while his later Resistance work carried much greater risks. And we also shouldn't forget…
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‘We should help nature to help us’
Biodiversity and healthy ecosystems continue to decline in Europe, which has serious consequences for human welfare. These are findings of a report that was formally approved by delegates from 127 governments during a UN plenary in Medellin, Colombia. Leiden researcher Alexander van Oudenhoven was one…
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Rector Hester Bijl on education in times of corona: ‘We have high hopes, but we are also realistic.'
The Dutch universities as a whole are lobbying for a 'normal' academic year from the end of August, where on-campus teaching will be possible. It's a view that Leiden University shares. Rector Hester Bijl talks about what teaching will be like then. She also looks back on a year of lockdown.
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Black hole one year later: proof of a persistent shadow
The brightness peak of the ring around M87's supermassive black hole has shifted 30 degrees counterclockwise in a year. This is shown by new images released by the Event Horizon Telescope consortium.
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Democratic elections in a one-party regime
China is a one-party regime, yet elections are held for the local congresses. PhD candidate Wang Zhongyuan investigated how the Communist Party uses this democratic instrument to strengthen the authoritarian regime. PhD defence 31 January.
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Who takes the lead when no one is in charge?
Politie, gemeenten en sociale organisaties werken steeds vaker samen in netwerken om maatschappelijke problemen op te lossen. Samenwerking is noodzakelijk, maar ook complex. Zonder duidelijke leiders vraag dat om ander leiderschap. Voor haar proefschrift onderzocht Moniek Akerboom hoe leiderschap vormt…
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Academic freedom, protests and a safe campus: where are we and how are we going to move forward?
Leiden University has had a turbulent week. There have been protests inside and outside our buildings that have evoked reactions, and students and staff have felt unsafe. We want with this message to look back at the past week and look forward to the future. What happened and how do we now want to move…
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One-way traffic for motion in new material
Scientists have developed a material that breaks one of the fundamental principles governing many physical systems. Ordinary materials transmit external forces equally, no matter where the pressure comes from. The newly developed material breaks this rule and could potentially be of interest in soft-robotics…
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Students inspire one another in new honours magazine
Children will be able to return to school in the near future, but students from Leiden University are not that fortunate. For the rest of this academic year, they will attend their courses online. To support one another in this period of isolation, honours students have shared their tips and ideas in…
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A university in times of corona: one year on
It is exactly one year ago that the university had to close, bang in the middle of the academic year. Suddenly, on that third Monday in March, we found ourselves at home, working and studying online – many of us from that cramped attic or student room. The momentous coronavirus year in pictures.
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Lara WierengaFaculty of Social and Behavioural Sciences
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Bart BarendregtFaculty of Social and Behavioural Sciences
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‘We have to continue talking about a healthy work balance’
The 2015 and 2018 Personnel monitors show that maintaining a good work balance remains difficult for staff at the Faculty of Humanities. Lecturer and researcher Judith Naeff and holder of the operational management portfolio Suzy Sirks have joined the Work Balance Steering Committee to examine the…
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‘We’re a spaceship with limited supplies’
From the discovery of exoplanets to the hunt for extraterrestrial life. At the Astronomy Gala on 17 December in the concert hall in Leiden, astronomers looked back, but above all ahead. With King Willem-Alexander as guest of honour.
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‘We need more differentiation in municipal administration’
More allowance should be made for differences between municipalities, argues Geerten Boogaard, Thorbecke Professor of Local Government. The Municipalities Act could, for instance, offer a ‘menu of options’ for the decision on whether to have an elected mayor. Professor Boogaard will deliver his inaugural…
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last Research Traineeship programme has ended for now: ‘We’ll bring it back as soon as we can’
Amsterdam’s attitude to sex work, politeness in historical Arabic letters and malaria in the Middle Ages: again this year, there was a wide variety of topics in the Research Traineeship programme. On Friday 30 August, the trainees finished the last of these projects for now.
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Sustainable fishing in one of Malawi’s biggest wetlands
The Elephant Marsh is one of the biggest wetlands in Malawi and many of the country’s inhabitants rely on it for their small-scale fishing catch. To make their small fisheries sustainable and future-proof, the government has to support the fishing community and not impose too many regulations. This…
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What do we define as urban green space?
When do we define a piece of nature in the city as a park? And when is something a tree or shrub? It may seem obvious, but in scientific literature the definitions vary quite a bit. That makes comparisons difficult. Environmental scientist Joeri Morpurgo looked at the differences and designed a general…
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University Council elections: big gains for new student party ONS, low turn-out
Following the elections for the University Council, the new student party ONS has won five seats, LVS two and CSL one. All the parties in the staff section have retained their seats. The turn-out was low for both staff and students.
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Laura van de Plas: ‘We want to show that we’re a community that cares for each other’
Laura van der Plas has been Wellbeing Officer for the Campus Den Haag since the end of 2021. By means of various projects, she makes sure that more attention is given to student wellbeing. How are things going so far? And what are these projects exactly? Laura talked to us to give us an update.
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We proudly look back on the Expeditie Stadsnatuur Leiden 2025
The Citizen Science Lab proudly looks back on a successful first edition of the Expeditie Stadsnatuur Leiden. On the 20th of June, we concluded the Expedition with a festive handover of the results to Ashley North, Alderman for Climate, Mobility and Finance, and with a market organised for and by lovers…
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Universe Awareness one of the most innovative programmes in education
Educational programme Universe Awareness (UNAWE) is one of HundrED's 100 Global Inspiring Innovations in Education. This was announced on 4 October 2017 at the HundrED Innovation Summit.
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‘In ten years’ time, we’ll ask ourselves how we can make the Netherlands more attractive for migrants’
When politicians claim they can make major differences with their migration policies, they’re raising false expectations. The opportunities for the government to restrict migration are in fact very limited. And what about the little room they do have? Mark Klaassen’s advice is to make use of those opportunities…
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Farewell to Martijn Ridderbos: ‘We can’t do it alone’
In his leaving interview, Martijn Ridderbos doesn’t have to think long when asked what he is most proud of. ‘Bringing people together; creating things together. Reducing the gap between researchers and the staff who support them because the latter are essential. We’ve achieved that and the seeds have…
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‘We have world-class expertise on the circular economy’
The province of Zuid-Holland faces a wide range of global sustainability issues caused by urbanisation, intensive horticulture and industry. The universities of Leiden, Delft and Rotterdam have the in-house expertise to define knowledge questions, set up research programmes and test results, says Prof.…
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‘We are most attracted to people who are like us’
Professor of Higher Education Estela Mara Bensimon approaches diversity from a specific viewpoint. Examine and reflect on your own motives, is her advice to lecturers. Do you know for sure that you don't treat students from minority groups differently?
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'We are only content when everything is taken care of'
Two organisers at heart. In the background, facilities managers Nick van Asperen and Kees Schoonwater ensure that staff and students have everything they need to work and study well. Recently, the familiar faces started doing so in a new role. Schoonwater is now project manager housing and Van Asperen…
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Gabrielle van den Berg: "We can raise our profile"
Gabrielle van den Berg became the Academic Director of LIAS on 1 September 2025: “I hope I’ll be able to make a real difference.”
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‘Technology shouldn’t shape our future; we should’
Technology holds so much promise – from self-driving cars to enhanced physical performance from smart implants under the skin. But we should not let ourselves be caught off guard. That is the message of Bart Custers, Professor of Law and Data Science in his inaugural lecture on 21 May. ‘We don’t talk…
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‘We add a bit of escape room to our lessons’
Tommy Hopstaken and Jochem Haverhoek run an escape room in Kruithuisje, a medieval tower on what was once the perimeter canal in Leiden. They are also secondary-school teachers and make good use of their escape room experience in their lessons. How do their degrees in Dutch and Astronomy come in use…
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Are you a future leader? Apply for One Young World The Hague
Are you passionate about building a better world? Do you want to connect with the young world leaders of today and tomorrow? If so, apply for the One Young World Summit in The Hague, to be held from 17 to 20 October 2018! Leiden University is sponsoring two tickets. Mayor of The Hague, Pauline Krikke,…
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Examining DNA molecules one by one: how combining techniques can help us understand diseases such as dementia
‘By cleverly combining new techniques for analysing DNA at the level of individual molecules, we can achieve real breakthroughs in research into conditions such as dementia,’ predicts Professor John van Noort. Together with four leading biophysics research groups, he has written a review article in…
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If we do nothing, more plants will go extinct
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.
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What we can learn from hi-tech nature
Biodiversity in the Netherlands is having a tough time. Professor of Natural Capital Koos Biesmeijer combines research with practical advice: from the greening of industrial parks to solutions inspired by hi-tech nature. Inaugural lecture 9 March.
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How do we maintain a healthy biological clock?
During Seeing Stars Leiden all the lights around Leiden Observatory will be switched off for an hour. The more lights that go out, the more stars we’ll be able to see. For the LUMC, this is the perfect moment to think about our biological clock, the topic researchers from the BioClock consortium are…
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‘Building bridges between scientists: that's what we're good at’
Two directors. Both professors of mathematics, but one of them is a biologist. One comes, and the other goes. Roeland Merks will succeed Arjen Doelman as director of the Lorentz Center in September. What has been accomplished and what are the plans? And above all, what makes the Lorentz Center so un…
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University signs Digital Sustainability Manifesto: ‘We need a Delta Plan’
Digitalisation can make a huge contribution to a greener future, but it must also be as sustainable as possible. To make significant progress, more collaboration and national leadership will be needed. Leiden University has therefore signed the Digital Sustainability Manifesto, which was presented on…
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How can we make better use of natural resources?
Mining for natural resources harms the environment. But we desperately need them, for both the development of countries and the transition to a sustainable energy system. Professor of Sustainable Resource Use Ester van der Voet researches how we can reduce the environmental impact of natural resources…
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Co-creation with researchers in Indonesia: ‘We welcome misunderstandings’
How do you co-create with researchers in other parts of the world? LDE wants to gather and share knowledge on the grand challenges and to do so across national borders. A delegation of 27 researchers will therefore travel to Indonesia at the end of October to take part in the LDE-BRIN Academy.
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Why do we always have room for pudding?
In De Kookshow, Universiteit Van Nederland explores the scientific world behind food. Ever wondered which senses influence how tasty you find something? And why do you always have room for pudding after a meal? Leiden historian Kim Beerden is among the scholars providing answers.
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Executive Board column: How can we deal with hate speech?
I was disgusted by the recent Ongehoord Nederland broadcast on 15 September. The racist and hateful comments made by alumna Raisa Blommesteijn were, as far as I am concerned, way over the line and in my opinion also violate Article 1 of the Constitution of the Netherlands.
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Visit More-than-Planet now possible with a We Are Public Pass
As of now, the Old Observatory's visitor center is also accessible with the We Are Public Pass! Visitors who have this pass can visit our exhibition More-Than-Planet for free.
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Eric Jorink: 'We want to map the tradition of observations'
The Netherlands Organisation for Scientific Research has awarded a grant of 750,000 euros to the 'Visualising the Unknown in 17th-century Science and Society' project. Researchers will reconstruct how seventeenth-century scientists recorded and shared their groundbreaking microscopic discoveries. We…
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‘We should have anticipated the invasion of Ukraine’
The West has missed several opportunities to prevent the invasion of Ukraine or, at the very least, to better support the Ukraine, claims Frans Osinga, Professor by special appointment War Studies.
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‘Dear Minister: We need to change the way we teach and organize it’
Edwin Bakker, invited speaker, at The EU conference on the future of higher education on March 9, 2016, advocated in his presentation ‘MOOCs as drivers of change: The teacher’s perspective’ for an open and positive attitude to digital learning environments and to leverage the potential of technolog…
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How can we encourage responsible financial behaviour?
PhD candidate Shekinah Dare researched which psychological factors contribute to responsible financial behaviour and well-being. She wants to use this knowledge to develop interventions to encourage people to manage their money better. PhD ceremony on 10 November.
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Land van Ons and Leiden University start cooperation in peat meadow area in Oud Ade
Land van Ons, a cooperation that buys agricultural land for the restoration of biodiversity and landscape, and Leiden University join forces. Together, they will investigate over a longer period of time which agricultural management leads to the best restoration of biodiversity. The research will start…
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How can we tell the story of multivocal the Netherlands?
At a time when statues of figures from history have an uncertain future Valika Smeulders has just become Head of History at Amsterdam's Rijksmuseum. What changes does she want to make? And how does she look back on her Languages and Cultures of Latin America degree programme in Leiden?
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One step closer to preventing mass death of roosters
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.
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The Netherlands one of the leaders in privacy protection
The Netherlands generally performs above average in the protection of personal data, according to research carried out at Leiden University. Germany is the leading country, while countries such as Italy and Romania are lagging behind.