1,199 search results for “groot als” in the Public website
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Webb detects icy ingredients for making potential habitable worlds
An international team of astronomers, led by Will Rocha of Leiden Observatory, using the NASA/ESA/CSA James Webb Space Telescope have discovered that the key ingredients for making potentially habitable worlds are present in early-stage protostars, where planets have not yet formed.
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Bacteria stunt with established plant-soil feedback theory
‘What I find most alluring about soil life is that you can steer it,’ researcher Martijn Bezemer of the Institute Biology Leiden (IBL) reveals. ‘You can ask: What do you want? And then I can transform the soil into something you need. At least, that is what we thought.’
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'Writing a judgment is far easier than writing a dissertation'
Doing a PhD on the side? External PhD candidates, like Joost Van der Helm, just get on and ‘do it’. Besides his hectic job as a justice at the Court of Appeal in The Hague, Van der Helm managed to still find time to write a PhD dissertation.
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Call for Papers: Book Diplomacy conference
On 28 and 29 April 2022 the conference ''Book Diplomacy’ in the Cultural Cold War: Interdisciplinary Perspectives' takes place at Leiden University. The keynote speaker during the conference is Professor Greg Barnhisel (Duqusense University). The conference aims to bring together a diverse group of…
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New research shows the limitations of coordination in chemistry
A common assumption in chemistry is that the coordination number of a catalyst's surface determines the reactivity of the reaction it catalyses. Strikingly, Leiden chemists have now proven that this is not true for nature’s most simple chemical reaction: the dissociation of hydrogen. The researchers…
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How superconducting memory could help data centres reduce their carbon footprint
Online services are stored on servers in data centres. Remko Fermin researched methods to make the memory in data centres more energy efficient.
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The Rome Statute as Evidence of Customary International Law
In 2005, the International Crime Court (ICC) in The Hague started an investigation on alleged crimes in Darfur, Sudan. However, Sudan is a non-party state to the Rome Statute, on the basis of which the ICC later was established. PhD candidate Yudan Tan studied the status of the Rome Statute and she’ll…
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The role of bubble formation in sustainable hydrogen production
The sustainable production of hydrogen could potentially be made more efficient by adding a cleverly chosen salt to the process. Researchers at the Leiden Institute of Chemistry (LIC), in collaboration with physicists at the University of Twente, have discovered that the type of salt present in the…
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The FAIR Principles herald more open, transparent, and reusable scientific data
Today, March 15 2016, the FAIR Guiding Principles for scientific data management and stewardship were formally published in the Nature Publishing Group journal Scientific Data.
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Unlock your leadership potential with the Leiden Leadership Programme
In the orientation seminar of the Leiden Leadership Programme lecturers and alumni shared their experiences and prospective students asked questions. They learned that they, too, can show leadership. ‘The LLP will give you the opportunity to reflect on who you are.’
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Miraculous mechanism allows plant cells to directionally distribute the growth hormone auxin
Leiden and Austrian researchers have succeeded in further uncovering how a plant cell passes on the growth hormone auxin in a directional manner to the next cell. Three proteins that cling together in a bunch appear to be essential for this important transport process. ‘This discovery solves a crucial…
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Glycine in space produced by dark chemistry
An international team of laboratory astrophysicists and astrochemical modellers has shown that glycine, the simplest amino acid and an important building block of life, can form under the harsh conditions that govern chemistry in space. The results have been published this week in Nature Astronomy and…
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Marnix van der Gun: ‘I gave it my all’
Marnix van der Gun (42) has lived in The Hague all his life. He started his career as a professional football player and, after an injury, opted for a social career. Now he has been working at the university for almost eight years.
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A summer filled with space exploration
This summer, Leiden, The Hague, Noordwijk and Delft will be hosting the ‘Sizzling Summer of Space’. To tie in with the international Space Studies Programme, all kinds of activities on space exploration are being organised, from a film evening to a Science Café and an exhibition of satellites to the…
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Jason Laffoon’s Leiden Experience: ‘I am expanding my horizons chronologically and regionally’
Back in 2008, Jason Laffoon moved from Chicago to Leiden. He came to join the Faculty of Archaeology’s Caribbean research group as a PhD candidate. Now he is an assistant professor, bridging departments through his innovative research methods. ‘I focus both on the archaeology of the Americas, as well…
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‘Take medicine target saturation into account’
Not taking into account the saturation of drug targets can lead to wrong conclusions about the duration of a drug's action. This is what former PhD candidate Wilbert de Witte writes together with the Leiden professors of pharmacology Meindert Danhof, Piet van der Graaf, and Liesbeth de Lange in Nature…
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Motion of stars near Milky Way's central black hole is only predictable for few hundred years
The orbits of 27 stars orbiting closely around the black hole at the center of our Milky Way are very chaotic. As a result, researchers cannot predict with confidence where they will be in about 462 years. ‘That is astonishingly short,’ says astronomer Simon Portegies Zwart who collaborated on the r…
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Rechtsvergelijkend onderzoek openbaarheid overheidsinformatie aangeboden aan Kamer
De minister van BZK heeft op 17 oktober het onderzoeksrapport ”Openbaarmaking van overheidsinformatie. Een rechtsvergelijkend onderzoek naar wetgeving in Zweden, het Verenigd Koninkrijk, Duitsland, Frankrijk, Slovenië en Estland” aangeboden aan de Tweede en Eerste Kamer. Het rapport is geschreven door…
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How NeCEN helped develop the Johnson & Johnson Covid-19 vaccine
The Phase 3 clinical trial results of the promising Covid-19 vaccine of Johnson & Johnson are expected this month. The Dutch electron microscopy facility NeCEN helped develop the company’s vaccine, and they have now published their scientific findings in Nature Communications.
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‘There’s a difference between inclusion and change’
If you want to talk about inclusion, you have to bring up the subject of race. This is what Kamna Patel said at Leiden University’s annual Diversity Symposium on 22 January. She is Vice-Dean for Equality, Diversity and Inclusion at University College London. We spoke to her beforehand.
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'Stephen Hawking put abstract science on the map'
Theoretical physicist Stephen Hawking (76) passed away on 14 March at his home in Cambridge, having been a long-term sufferer of the muscular disease ALS. A number of Leiden scientists look back at the life and scientific career of this world-famous physicist. 'He was very approachable and extremely…
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Energy transition: let’s opt for a combined approach
Despite the rapid progress in solar and wind energy, a completely clean energy supply remains a huge challenge. Heavy industry, aviation, shipping and road transport are not yet able to do without carbon-based fuels. To reach the climate goals, in these industries energy consumption should be CO2 neutral. In…
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Astronomers capture first-ever image of a multi-planet system around a Sun-like star
An international team led by Leiden astronomers has taken the first-ever image of a young, Sun-like star accompanied by two giant exoplanets. The researchers used The European Southern Observatory’s Very Large Telescope for this, known as ESO’s VLT. Images of systems with multiple exoplanets are extremely…
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New technique offers chemists unprecedented control in drug research
Leiden chemists have developed a new technique with which they can determine the role of kinases – a group of proteins – in a living cell. This technique makes it easier to find new drug targets for diseases such as cancer and rheumatoid arthritis. The team published the findings in the journal Nature…
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Working and growing in science
'We must set out an agenda, in partnership, to manufacture our own means. This will stimulate science, small businesses, jobs and society in Africa and beyond.' With these words Naledi Pandor opened the symposium 'Science Diplomacy and International Development', which was held in her honour on 27 Februari…
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Evolutionary change in protective plant odours
Plants can’t run away from enemies. Still, it would like to keep life-threatening herbivores at a distance. This can be done with odours. Klaas Vrieling of the Institute of Biology Leiden found out with his team how plants change odour production to keep the munchers at a distance.
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Regieorgaan Open Science officially launched as Open Science NL
Fifteen knowledge institutions and the Ministry of Education, Culture and Science have signed the covenant for Open Science NL. Leiden University has also joined the covenant, via the Universities of the Netherlands. This marks the start of the Dutch Research Council’s and brings the transition to open…
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Student cleans up archival data and uncovers two stellar cocoons
While investigating 16 years of images of young stars from a retired astronomical camera, Leiden master's student Sam de Regt discovered that two of those stars were still enveloped in birth clouds. Never before has anyone captured these two stars in so much detail. He publishes his data-cleaning method…
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Throwback to the panel discussion about the future of archaeology
As part of the celebrations around the 25th birthday of the Faculty of Archaeology, a panel discussion on the future of archaeology was organised on December 13th. For this discussion an international panel of scholars was invited to give their perspective and enter into conversation with our Faculty…
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Upcoming exhibitions, residencies, concerts, record launches and lectures by PhDArts, docARTES and ACPA researchers
A series of upcoming activities by PhDArts co-director Janneke Wesseling, docARTES researchers Bobby Mitchell, Giuliano Bracci, and Dick de Graaf, and PhDArts researchers Brigitte Kovacs, Danne Ojeda, Jack Segbars, Mikala Hyldig Dal, Ato Malinda, and Thalia Hoffman
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3 October University: ‘Artificial intelligence is like young people and sex’
‘Everyone’s talking about it, everyone thinks everyone else is doing it, but the reality is disappointing,’ says biochemist Gerard van Westen in his 3 October University lecture in the Van der Werfpark. In the full marquee, he gets a laugh with this suggestion that artificial intelligence is comparable…
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Human disturbance of ecosystems leads to increase in disease-transmitting mosquitoes
The changes that humans are making to the landscape are beneficial for mosquitoes that spread diseases such as Zika, chikungunya and dengue. This is what biologist Maarten Schrama and his colleagues write in the journal Nature Scientific Reports. ‘If we know in which living environments mosquitoes thrive…
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The mysteries of exoplanets and supermassive black holes: two Vici grants for Leiden Observatory
One unravels the origin of the largest black holes in the universe, the other investigates the influence of stellar wind on the atmosphere of exoplanets. Both Elena Maria Rossi and Aline Vidotto receive a Vici grant for their research into the mysteries of the universe. ‘I have no idea yet how we can…
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Close contact between women and dogs in prehistoric times
Close contact between women and dogs in prehistoric times Women and dogs were in close contact in the neolithic age of hunters-fishers-gatherers. This has been suggested by Leiden osteoarchaeologist Dr Andrea Waters-Rist and fellow researchers who have studied a tiny biological fossil. The fossil was…
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This is how a channel is formed between two organelles
The channel through which two cell components exchange material appears to form at the edge of their contact surface, and not in the middle. This was discovered by the Leiden physical chemists Jelger Risselada and Edgar Blokhuis together with researchers from the University of Lausanne in Switzerland.…
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Paradigm-shifting theory highlights the importance of substrate flexibility in enzymatic reactions
Leiden chemists have proposed a new model for enzymatic reactions, in which the flexibility of the substrate is much more important than previously thought. Their results are paradigm-shifting and could have major implications for drug research and enzyme engineering. Publication in Angewandte Chemi…
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Exceptional collection of maps and atlases donated to Leiden University Libraries
Private collectors John Steegh and Harrie Teunissen from Dordrecht have donated their entire collection of maps, city plans and atlases to Leiden University Libraries (UBL). In almost 40 years they brought together circa 17,000 map sheets and 2,300 atlases and travel guides. Especially the thematic…
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Fierce protests against Education Minister's redistribution plans
Over a thousand researchers and students protested in Leiden on 2 September against the plans to transfer money to science and technology at the expense of other disciplines. Just metres away, Minister of Education, Culture and Science, Ingrid van Engelshoven, was giving a speech at the opening of the…
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Clashing galaxy clusters and extreme energies
A galaxy is already incredibly large, but it can get even bigger. Astronomer Reinout van Weeren investigates clusters of galaxies, one of the largest structures in the universe. For his research into the origins and evolution of these clusters, he obtained an ERC Starting Grant of 1.5 million euros.…
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Leiden bachelor students analyse data EC soccer
Leiden bachelor students analyse data EC soccer Students are now familiar with something sports journalists already knew: summer holidays can be a time of hard labour. Everybody else is lying on the beach, but for you, it is the busiest time of the year. Leiden bachelor students collected the data…
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Body's own marijuana helps us forget traumatic memories
The endogenous compound anandamide – often referred to as the body’s own marijuana – plays a role in erasing memories of a traumatic event. This was discovered by an international team led by Leiden chemist Mario van der Stelt. The results have been published in Nature Chemical Biology and may provide…
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Common frame for analyzing complex systems in Physics and Economics
Scientists often need to make sense of complex systems without knowing the important parameters or even without access to all the information. A collaboration of network theorists, including Diego Garlaschelli (IMT Lucca/Leiden), has now published a review article in the inaugural issue of Nature Reviews…
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International Studies helped Nassim Abba broaden his horizon: ‘Everyone brings their own outlook with them’
Nassim was in the first cohort of students who began the bachelor’s programme in International Studies in 2012. His foreign classmates changed his outlook on the world. He now advises managers and civil servants on issues in higher education and internationalisation. His international perspective helps…
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Buzzing decline: Dutch landscape is losing insect-pollinated plants
The Netherlands is losing plant species that rely on pollination by insects. Leiden environmental scientist Kaixuan Pan demonstrates this after analysing 87 years of measurements from over 365,000 plots. The news is alarming for our biodiversity and food security. ‘75 per cent of our crops and 90% of…
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Neutrino linked to black hole that devours star
For only the second time ever, astronomers have linked a neutrino to an object outside our Milky Way. These observations were made using telescopes both on Earth and in space. The researchers, including Leiden astronomer Sjoert van Velzen, were able to trace the neutrino to a black hole that is devouring…
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Blog: 'Public leadership: fighting racism and fostering inclusiveness'
In response to George Floyd’s violent death in Minneapolis and the worldwide mass protests against discrimination and institutional racism, the Leiden Leadership Centre endorses the call of Hester Bijl, Vice Rector Maginificus of Leiden University to recognize and address racism and inequality.
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Collaborating on big data to unravel disease processes
Patients with the same illness often receive the same treatment, even if the cause of the illness is different for each person. This represents a new step towards ultimately being able to offer every patient more personalised treatment.
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Finding unique drug structures with artificial intelligence and chemistry
In the search for new medicines against diseases such as cancer, a Leiden team has developed a new workflow. This approach combines artificial intelligence (AI) with molecular modelling and is suitable for finding unknown and innovative drug structures, the researchers proved.
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Dust cloud from two colliding ice planets dims light of parent star
For the first time, an international group of astronomers have seen the heat glow of two ice giant planets colliding. They could also observe the resultant dust cloud move in front of the parent star several years later. Led by Leiden astronomer Matthew Kenworthy, they monitored the star's brightness…
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‘Scientists should be careful when interpreting results of AI models’
Anthropologist Rodrigo Ochigame studies how AI is changing the practice of scientific research. From astrophysics to mathematics to climate science, they find that the adoption of new AI models is raising questions about what counts as reliable scientific evidence.