Isotopes on exoplanets, a more efficient memory for data centres or new molecules that work against the Zika virus and HIV. Which PhD candidate has written the most impressive dissertation of 2023? The jury of the C.J. Kok Jury Award faces the challenging task of deciding that. Meet the nominees of…

Explaining your PhD research to others can be quite difficult, especially without talking! PhD student Annebelle Kok of the Institute of Biology Leiden was one of the finalists of the 'Dance Your PhD' competition of scientific journal Science. ‘You have to understand your own research well if you are…

In Dutch newspaper Trouw, Joost Kok describes the operation and accuracy of smartphones, smart bracelets and watches.

The project has been done in the Quantum Matter Optics group under the supervision of Dr. Wolfgang Löffler and Prof.dr. Carlo Beenakker. The title of the presentation is:

Maurijn van der Zee, evolutionary biologist at the IBL, received the National Zoology Award for his research on the evolutionary success of the insects. The award was handed out last Saturday, the 17th of December, by Professor Jan Kammenga, chairman of the Royal Dutch Zoological society.

Salma Balazadeh, Víctor Carrión, and Jos Raaijmakers, biologists at the Institute of Biology Leiden (IBL), have successfully applied for an NWO grant and got awarded 730.000 euros. The board of NWO Domain Applied and Engineering Sciences awarded funding for their project within the Open Technology Programme…

Joost Kok, Professor of Computer Science at the Faculty of Science, has been appointed Dean of the Faculty of Electrical Engineering, Mathematics and Computer Science (EEMCS) at the University of Twente. He will succeed Prof. Peter Apers, and start at 1 February 2018.

Nanoplastics can accumulate in developing hearts, according to a study by biologist Meiru Wang from Leiden University. Her research on chicken embryos sheds new light on how these tiny plastic particles pose a threat to our health.

Wouter Halfwerk (IBL) received a Veni grant from the Netherlands Organization for Scientific Research for his research project on the influence of man-made noise on foraging birds.

Chris Jacobs, former PhD-student of the IBL, received the national “Dissertation Award” for best PhD thesis of the year on insects. The award was handed out last Friday, the 18th of December, by Professor Matty Berg, president of the Dutch Entomological Society.

The book 'Darwin comes to town’ by Menno Schilthuizen has been awarded the best nature book in the Netherlands. The Leiden biologist received the Jan Wolkers Prize, awarded annually by Dutch TV and radio show 'Vroege Vogels'. In his book Schilthuizen describes evolution in one of the newest and most…

Statistician Anja Rüten-Budde has won the C.J. Kok Jury Award 2020. Her PhD thesis resulted in an app which helps patients with soft tissue sarcoma and their doctors to make well-considered choices about the treatment. ‘Her work is interdisciplinary and directly relevant for society,’ the jury state…

Prof. Dr. Joost N. Kok is panel chair in the research assessment of Tampere University of Technology (TUT), Tampere, Finland.

On December 4th, Flor Rhebergen received the 2015 Unilever Research prize for his study achievements at the IBL for his outstanding work in the field of Evolutionary Biology. Flor Rhebergen received the “Ovum” sculpture and was awarded €2.500.

Pigeons, zebra finches and parakeets. Carel ten Cate studied bird sounds. But not just that. Together with linguists from Leiden, he investigated parallels between birdsong and language. On 9 June, his farewell symposium was held to mark the end of his broad career. Well, the end? Carel ten Cate has…

Biologists today have to be able to work with big data. Data analysis skills should be taught from the start of the degree programme, or - even better - in secondary school. This is the message of Vera van Noort, new Professor of Computational Biology. Inaugural lecture 22 January.

The jury of the C.J. Kok Award selected Stéphanie van der Pas' dissertation as the Faculty of Science's best dissertation of 2017. This was announced by rector Carel Stolker during the faculty’s New Year's reception on 9 January.

Hans Slabbekoorn researches animal sounds and the effect of the noise we humans make on these animals. He is also committed to making his discipline more diverse.

Sjaak Neefjes, Professor of Chemical Immunology at Leiden University, will receive the NWO Spinoza Prize this year. The Spinoza Committee called Neefjes an ‘exceptional researcher whose intelligence is matched by his boldness’. He will use the 2.5 million euro prize to pursue his research into cancer…

Who is the most inspiring teacher? Who is our most outstanding bachelor student? And which PhD candidate wrote the best thesis? In other words: Who are the winners of the 2023 Faculty Awards?

D.P. Kok defended his thesis on 10 October 2017

The subject of the research is ‘difference and repetition’, an area which bears a direct relationship to Wjm Kok’s practice, in which the production of work always emerges and passes through series.

On this page you can learn more about the history of our Faculty Awards and view the previous winners.

Natural Computing investigates algorithms and phenonema based on nature to create better and new computer science innovations.

Lecture

Before the modern nation-state became a stable, widespread phenomenon throughout northern Europe, multilingualism-the use of multiple languages in one geographical area-was common throughout the region.

Optical cavities are useful tools to enhance the interaction between light and matter, which is important to make good quantum emitters. However, it turns out that the cavities themselves (without any quantum emitters) are already interesting objects to study.

Promotor: Prof.dr. J.N. Kok, Co-promotor: F.J. Verbeek

Promotor: Prof.dr. J.N. Kok

We develop open micro cavities to trap light in small volumes and thereby increase the interaction with intra-cavity emitters. Important aspects in this development are the optical penetration in the mirrors, coupling between optical modes, and scattering and clipping losses.