693 search results for “magnetic resonance imaging mri ” in the Public website
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Brains react differently to ADHD medication than expected
A tried and tested medication for treating ADHD works differently than expected in the brains of healthy individuals during rest: rather than stimulating brain activity, it suppresses it.
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Visualising the nanoworld
Visualising cell proteins without invasive techniques is possible with the help of fluorescence. During a lecture of the Natuurwetenschappelijk Gezelschap Leiden on 18 January, winner of the Spinoza Prize 2017 and founder of the field of single molecule optics Michel Orrit explained how this works.
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Is this really my hand?
A virtual hand that feels as if it is your own. Feeling happier because a virtual face is smiling with you. Cognitive Psychologist Ke Ma discovered using virtual reality that the way we experience our body is more flexible than we thought. Ma: ‘We can think up some fantastic applications.' PhD defence…
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Three new Leiden members of KNAW
KNAW has elected eighteen new members, including two professors at Leiden University and one who studied and obtained his PhD in Leiden. The New Academy members will be installed at a later date this year.
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How deep is a mirror?
Light reflects from a mirror, but where exactly does this reflection happen? Well, it depends, Martin van Exter and Corné Koks discovered. Their precise calculations, published in Optics Express, are important for designing optical cavities for quantum communication.
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Composer and ACPA researcher Yannis Kyriakides awarded first prize in the International Rostrum for Composers
Former student of Leiden University professor Louis Andriessen at the Royal Conservatoire in The Hague, Cyprus-born ACPA researcher Yannis Kyriakides, currently developing his PhD dissertation under the supervision of Professor Frans de Ruiter and docARTES PhD supervisor/ORCiM research fellow Dr. Bob…
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Royal decoration for Jo Hermans and Jan Schmidt
Two of our colleagues received a royal decoration. Professor Jo Hermans became “Ridder in de Orde van Oranje Nassau”, and Professor Jan Schmidt became “Officier in de Orde van Oranje Nassau”. They receive the decoration as an acknowledgement for their extraordinary and selfless contribution to others…
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Impurities in sugar excipients could cause drugs to fail
Sugar excipients, needed to stabilize medicines, can be unsafe for patients due to an impurity discovered recently by Daniel Weinbuch. ‘The biopharmaceutical industry should now consider new excipient quality criteria for safer drug development,’ he says. PhD defence on 13 December.
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Astronomers see two planets vacuuming around young star
Astronomers led by Leiden astronomer Sebastiaan Haffert have directly imaged two planets that are gravitationally carving out a wide gap within a planet-forming disk surrounding a young star. While over a dozen exoplanets have been directly imaged, this is only the second multi-planet system to be p…
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Female Researchers in the Spotlight for Physics Ladies Day
On Thursday 9 November, Leiden University organized its annual Physics Ladies Day for female high school students. To mark this festive day, we put the spotlight on two female researchers, who talk about their experiences in physics.
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René Kleijn appointed Professor of Resilient resource supply
The energy transition ranks high on the European policy agenda, but what does it take to get there? René Kleijn researches how we can extract, use and reuse raw materials in a responsible way. Since 1 March, he has been appointed professor of Resilient resource supply.
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A first in the lab: a tiny network that is both strong and flexible
Daniela Kraft's group has succeeded in creating a network of microparticles that is both strong and completely flexible. This may sound simple, yet they are the first in the world to succeed in doing so. A real breakthrough in soft matter physics.
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Wil Roebroeks wins Spinoza Prize
The Leiden archaeologist Wil Roebroeks has been awarded the Spinoza prize for his original observations about early hominins and the development of human society, NWO (Netherlands organisation for Scientific Research) announced on Monday 4 June.
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Habitable planets around pulsars theoretically possible
It is theoretically possible that habitable planets exist around pulsars, rotating neutron stars. Such planets must have an enormous atmosphere that convert the deadly X-rays and high energy particles of the pulsar into heat. That is stated in a scientific paper by astronomers Alessandro Patruno and…
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2022 Sustainability Report: Fewer CO2 emissions and greener operational management
The University's CO2 footprint has once again decreased. This is the conclusion of the 2022 Sustainability Report. The report also concludes that steps have been taken to integrate sustainability into Leiden University education and research.
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Can you predict a migraine attack?
A chair tipping over serves as a metaphor for a migraine attack in Thijs Perenboom’s PhD research at Leiden University Medical Center (LUMC). He wants to unravel whether and how we can predict migraine attacks. He will defend his thesis on Tuesday 21 June.
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Unique carbon-14 measurements published in Science
The distinguished academic journal Science published an article about an important and extensive series of measurements made by the Centre for Isotope Research (CIO) of the University of Groningen. The measurements concern the dating of a lake bed sediment in the Suigetsu Lake in Japan.
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Auroras on nineteen stars hint at hidden exoplanets
An international team of scientists including Leiden's Joe Callingham has discovered nineteen red dwarf stars that unexpectedly emit radio waves. The outbursts possibly originate from interaction with exoplanets. The results of the research appear in two scientific publications.
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Opening event wall formulas Snellius and Lorentz
On Thursday 3 November Leiden University will celebrate the official opening of two wall formulas in the city centre. As of now, Snell’s law and the Lorentz force formula shine on two walls in the heart of Leiden. They are part of a project to display at least ten groundbreaking formulas with a Leiden…
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Your old smartphone is indispensable for the energy transition
By 2050, we can obtain 40 per cent of our demand for scarce earth metals from old smartphones, batteries, and wind turbines. This is crucial because otherwise, we may not have enough to accomplish the energy transition. An international team of researchers from China, the UK, and Leiden's Tomer Fishman…
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First discovery of high-energy neutrino source
For the first time, scientists have traced back a high-energy neutrino to its source in space. It was produced by a so-called blazar—a supermassive black hole. Researchers from neutrino detector IceCube report this in Science. ‘This is a milestone for neutrino science,’ says physicist Dorothea Samtleben…
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SAILS Lunch Time Seminar
Lecture
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SAILS Lunch Time Seminar
Lecture
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Publications
Recent publications
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Presentations and Lectures
Members of our research team give different types of presentations and lectures.
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Public Management and Leadership (MSc)
The Public Management and Leadership specialisation emphasises how the behaviour of critical actors – politicians, top-level bureaucrats, street-level professionals and citizens - is critical to understand and improve public governance. The specialisation blends public administration with psychology,…
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Career prospects
The combination of academic and professional skills taught in the Public Management specialisation of Public Administration makes graduates excellent candidates for positions as a public manager, or take on an advisory role as a management consultant or strategic advisor within public organisations.
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Iron-immune interactions in Alzheimer's disease
PhD defence
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Online exhibition
TEXTS FROM ANCIENT EGYPT. Highlights from the Collection of the Leiden Papyrological Institute. Online exhibition on the occasion of the 80th anniversary of the foundation ‘Het Leids Papyrologisch Instituut’ in 2015.
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Looking back at the Lorentz Workshop
“Endophenotypes of Social Anxiety Disorder: Can we detect them and are they useful in clinical practice”
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Why fundamental science matters
Why do we need fundamental science? For a lot of reasons, speakers showed at the Lustrum Symposium ‘Science Matters’. This symposium was held on 18 March 2016 to celebrate the 200th anniversary of the Faculty of Science.
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Got a question about science? Ask Leiden!
Due to its success, the Leiden2022 Q&A has been extended and is looking for even more thought-provoking, interesting or unusual questions.
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Larger pupils? You might just have gained someone’s trust
Synchrony in heart rate, skin conductance and pupil diameter plays a big role in human social interactions, such as gaining trust or being attracted toward each other. This is what Eliska Prochazkova found in several lab and field experiments. PhD defence on 4 March 2021.
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Teachers' Academy fellows making teaching more attractive and more effective
On 29 October, seven innovative lecturers from different faculties will join the existing ten fellows of the Leiden Teachers' Academy. The current fellows have been engaged for the past year in implementing their innovation projects. How are these progressing?
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Genetic predisposition to social anxiety disorder measurable in the brain
It was already known that social anxiety disorder often affects more than one person in the same family. But research by PhD student Janna Marie Bas-Hoogendam has now shown that there are genetic brain characteristics that are associated with social anxiety. The PhD ceremony will take place on 14 Ja…
- Week 7-8: 19-28 February 2017
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Separating waste, and then...?
What happens to the different waste streams?
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Emergency recording of Chontales style sculpture at the El Gavilán site, Central Nicaragua
The scientific interest in stone sculpture has been present in the archaeological investigation of Nicaragua from the mid 19th century onward.
- Public graduation presentation, Cania Antariksa
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Four Comenius teaching awards for Leiden lecturers
Five lecturers from Leiden University have received a Comenius teaching award. With the grants they can carry out an innovation project.
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This is how physicists use light to build complex structures
Petr Steindl works on quantum dots in microcavities for his PhD research. He manipulates single-photons to create complex structures of light. Applications could include quantum communication and gates for quantum computers.
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Still learning from the Ancient Greeks
There are still things we can learn from the Ancient Greeks. How they managed to make sure that innovations were accepted, for example. A group of classics scholars, led by Leiden, will be carrying out research on this question funded by the largest ever NWO subsidy.
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Superselective bonds light up
Rather than one key and one strong lock, biology often uses tens or hundreds of weaker links to bind parts together, such as cells membranes. This allows for selectivity and also reversibility: the binding can also be undone. Researchers first caught this phenomenon using spheres or colloids, and published…
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Black lives matter: ‘Racism takes different forms but it’s a world issue’
It all started with demonstrations protesting about the death of George Floyd from police brutality in Minneapolis, but the Black Lives Matter protest is spreading like wildfire across the whole of the US. Every day, thousands of people are taking to the streets. We asked American Studies expert Sara…
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Henri Borel: a government official caught between two cultures
Audrey Heijns explored the mindset of alumnus Henri Borel. From 1894 to 1916 he was an interpreter of Chinese and later a government officer for Chinese affairs in the Dutch East Indies. Borel's way of 'translating' Chinese was both unique and inimitable. PhD defence on 28 June.
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Children's Storybook ‘Sumak Kichwa Wawa’
What do you get when you combine traditional storytelling, new technology, and a whole lot of creative passion? Sumak Kichwa Wawa, an Andean children's storybook using augmented reality, that's what! Assistant professor, Martine Bruil and researcher Ximena Buller Machado tell us more about this special…
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Cleveringa Professor Frank van Vree: ‘It’s high time to discuss the ritualisation of the past’
The annual commemoration of the nation’s war dead on Dam Square and at Waalsdorpervlakte, the Dutch apologies for historical slavery and the Cleveringa Lecture itself: our relationship with history is often ritualistic, Cleveringa Professor Frank van Vree will say in his inaugural lecture on 27 Nove…
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Resolution of electron microscope greatly improved
The use of a new type of detector has generated a strong improvement in the resolution of electron microscopes. The 'low-energy electron microscope' (LEEM) can now be used for research on the thinnest possible materials. The tests with the detector represent the first result of the ESCHER project.
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Vidis for eleven Leiden researchers
Eleven talented Leiden researchers with several years of research experience have been awarded a Vidi subsidy to set up or expand their own line of research.
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Dutch National Research Agenda supports five ‘Leiden’ public-private projects
The Dutch National Research Agenda announced today that it will provide 17 research projects with a total of 61 million euros in funding. Researchers from Leiden University or the Leiden University Medical Center are involved in five of the projects. All of the projects are interdisciplinary partnerships…