The internet is a good place to rapidly collect large amounts of data. But if you don’t watch out you’ll collect very biased, one-sided data. These were the warning words of the speakers at a symposium on 5 March about transparency and responsible data science.

An international team of astronomers, including Leiden’s Christian Ginski, has discovered previously unobserved structures in a debris disk around a nearby star. Article published in Nature on 8 October.

The new programme Synoptic Optics, funded by the NWO Domain Applied and Engineering Sciences, will develop new optical techniques. Researcher Frans Snik and Professor of Experimental Astrophysics Christoph Keller from Leiden Observatory will test novel approaches to monitor air pollution and discover…

The Netherlands Council of State ruled at the end of March that WhatsApp and text messages on the work and private cell phones of civil servants are considered to be official records. This decision puts the government in a difficult position. How are you going to store millions of texts and WhatsApp…

LCD screens use liquid crystals which have a high degree of order, even though they form a fluid. A new theory maps out the interplay between order, temperature and symmetry. Publication in Physical Review X.

Catalyst research aims to make gasoline less polluting. It turns out that during experiments it is actually necessary to protect catalysts from air itself. Publication in The Journal of Physical Chemistry C on August 26.

Wessel Kraaij has been appointed Professor of Applied Data Analytics with effect from 1 March 2016. Kraaij will use new methods to analyse big data sets. He intends to use data from various data-intensive research fields to test these methods in practice.

Studying the impact of urbanisation on the respiratory health of past Dutch populations (1200-1850 CE).

Wiskunde en Natuurwetenschappen, Sterrewacht Leiden (STRW)

In the context of growing political polarisation, the spread of misinformation, and increases in incivility and intolerance, how can Twitter assess and improve the quality of its conversations? To address this question, an interdisciplinary team of researchers from Leiden University, Syracuse University,…

With a large majority of votes, drug researcher Alireza Mashaghi Tabari was chosen Discoverer of the Year 2017 of the Faculty of Science. This was announced by Rector Carel Stolker during the faculty’s New Year's reception on 9 January. Computer scientist Kristian Rietveld became Teacher of the Year…

Various ministries started building nuclear bunkers in the seventies to shield themselves from a possible nuclear attack from the East. One of these nuclear bunkers lies below our new Wijnhaven building. This specific bunker was designed for important figures of government, and was built to function…

Jelle van Buuren, Assistant Professor at Leiden University, appeared in Dutch newspapers the Algemeen Dagblad and Het Parool to discuss conspiracy thinking and the pandemic.

The Dutch-Japanese made DESHIMA instrument has passed its first practical tests when measuring the distances and ages of distant galaxies. The core of the instrument is a chip the size of two euro coins that measures 49 shades of far infrared light. The developers of the spectrometer publish the results…

Leiden biophysicists have found a new possible way to attack cancer cells. They have located ‘sinkholes’ on the cells where receptor proteins disappear from the surface. If a drug could push these proteins towards those areas, it would kill the cancer cell.

The Netherlands eScience Center has announced to fund a new Path-Finding Project led by Dr. Dorothea Samtleben from the Leiden Institute of Physics (LION). This project aims to make the processing of detection signals more efficient for the KM3NeT neutrino telescope, which is currently under construction…

Offering all information about available research support in one place is why the new Research Support Portal was built. Policy officer research Marcel Belderbos talks about the recently launched platform.

Leiden University Libraries invites you to the public lecture by Ted Underwood, Visiting Scaliger Professor. This lecture will be held on Thursday 21 November, from 16.00-17.00 in the Lipsius building, Room 0.19, Cleveringaplaats 1, Leiden. Afterwards, you can meet the new Visiting Scaliger Professor…

A group of chemists, that includes Sander van Kasteren and Hermen Overkleeft, has discovered that azides, a certain type of chemical compound, can determine whether or not T cells respond to or ignore a vaccine. Their discovery is set to be published in Angewandte Chemie.

Biophysicist Rolf Harkes has developed a microscope to optically localize individual molecules in living cells. It improves monitoring of diseases like cancer and Parkinson’s at the cellular level. Defende PhD thesis on t13 January 2016.

Mazène Hochane and Xueying Fan have won the fourth annual LION Image Award. They created a detailed colour image of a human kidney in development.

Physicists have manipulated light with large artificial atoms, so-called quantum dots. Before, this has only been done so well with actual atoms. It is an important step towards light-based quantum technology. Publication on August 30th in Nature Communications.

Biophysicist Anjali Pandit has been awarded a FOM 'Projectruimte' research grant for her proposal ‘Tuning into the photosynthetic membrane with atomistic precision’.

The word bureaucracy does not have negative connotations for Ken Meier. Meier, Professor of Bureaucracy and Democracy, has a clear grasp of the relationship between elected politicians and bureaucracy, or the civil service. Inaugural lecture on Monday 20 May.

Join our Faculty photo contest ‘FSW Memories’. Send your photo + story befóre 25 October 2019.

Academics who offer their books free online reach many more readers and are cited slightly more often. Surprisingly enough, it has little effect on the sale of paper editions, positive or negative. This is the conclusion of PhD candidate Ronald Snijder. PhD defence 29 January.

Dutch Parliament members are reluctant to discuss their urgent need for more support staff. They are afraid to be labelled as “greedy” or profiteers if they were to put in a request for more assistance. But times seem to be changing.

Platinum is a widely used catalyst, but its precise mechanism largely remains a mystery to scientists. Ludo Juurlink has now demonstrated for the first time how oxygen reacts on the platinum surface. Together with PhD students Kun Cao and Richard van Lent and international colleagues he publishes his…

Randal Sheppard recently joined the Institute for History as a lecturer in International Relations. He introduces himself.

From filtering UV light in sun cream to preventing perspiration odour in socks and sterilising fridges and washing machines. The use of nanoparticles in products is increasing. But what is the impact of these miniscule particles on the environment?

Are you a great photographer? Or not at all, but you do have a brilliant photo that captures the relationship between food and people? Join the photo contest ‘Food & Society’ of our Faculty and send in your best photo before 3 April 2018!

Developing a digital guest lecture for high school students. Jan Sleutels was immediately enthusiastic when he got asked to do this. The end result? Together with his colleague Maarten Lamers, he created the guest lecture 'Thinking about Artificial Intelligence'.

Developing a digital guest lecture for high school students. Jan Sleutels was immediately enthusiastic when he got asked to do this. The end result? Together with his colleague Maarten Lamers, he created the guest lecture 'Thinking about Artificial Intelligence'.

Do you want to make sure you're well prepared for the job market, or maybe help your students on their way to a job? Leiden University Career Zone, the University website about the job market, has been updated and it now has more tests, better tools and its own job portal.

A new technique using fluorescent imaging to track the actions of enzymes might aid drug design for new anti-cancer, inflammation and kidney disease treatments. Researchers at the University of York and Leiden University have published these findings in Nature Chemical Biology.

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…

Envoys jumping out of windows, fights, and illegal diplomacy: history student Tessa de Boer encountered them all while writing her master's thesis on Amsterdam as a diplomatic city during the 17th and 18th centuries. For her thesis, she was awarded the Uitgeverij Verloren/Johan de Witt thesis prize…

Karen Smith is a university lecturer in International Relations at the Institute for History and she occupies a unique position: she has one foot in the academic world and the other in the world of the United Nations. As a Special Adviser, she helps the UN Secretary-General Antonio Guterres to remind…

There are effective treatments for people with autism, says Wouter Staal, professor of Autism Spectrum Disorders, in his inaugural lecture on 4 May. However, it is not yet clear which treatment is most effective for which individual.

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.

Together with a large international team of scientists, researchers Peter van Bodegom and Nadia Soudzilovskaia of the Leiden Institute of Environmental Sciences (CML) have created maps of variability in plant trait distribution across the globe. The new maps have been published in Proceedings of the…

Mapping out the problem of plastic pollution requires a lot of data over a large area. That's why scientists are increasingly turning to volunteers for help, also known as citizen science. But what are the challenges for a researcher when he or she involves the public in research in this way? Four Leiden…

Every year, an NWO PhD in the Humanities grant is awarded to a prospective PhD candidate at the Faculty of Archaeology. This year, the grant went to Maia Casna, enabling her to study respiratory disease in the past. ‘My hypothesis is that the rapid formation of cities in the medieval Netherlands, must…

Introducing prof. Scott Nelson, the Legum Professor of the Social Sciences at William and Mary, and on the spring exchange at the University of Leiden.

Researchers from the Leiden Institute of Chemistry show proof of principle that live-cell structural changes and metabolic processes can be followed in real time with NMR spectroscopy. They performed their study on photosynthetic green algae that are metabolically flexible and can sustain energy generation…

An organized overview of the current global fungal diversity, that is what Irene Martorelli and colleagues try to achieve with the new MycoDiversity Database (MDDB) she builds in collaboration with Naturalis Biodiversity Center. The new database will make it easier and quicker to observe which fungi…

In the controlled, censored, and taboo-ridden media landscape of communist China, one would not expect seeing a television show featuring real people having actual conflicts. Yet reality programmes about conflict mediation are mushrooming in the People’s Republic. Both the public and the authorities…

Leiden Physics Poster

Mariken Teeuwen started at the Institute for History as a professor by special appointment of Script Culture of the Middle Ages on 1 March. ‘I’m looking forward to doing research together with students.’

The alignment of the James Webb Space Telescope is complete. The space observatory is able to capture sharp, well-directed images with each of its four powerful scientific instruments on board. The MIRI instrument, on which Professor of Molecular Astrophysics Ewine van Dishoeck also worked, was the…