The main research question of this thesis was: Can nitrogen cycling on dairy farms on peat soil in the Dutch Green Heart area be improved by adapting management to the nitrogen supply from soil and by using other grassland species and crops without affecting milk production?

The power of personalized nutrition lies in being able to conduct clinical research on healthy people while capturing metabolic markers sensitive to the impact of environmental and metabolic stressors (e.g. diet, changing sex hormones and the menstrual cycle).

Materials with strongly correlated electrons show some of the most mysterious and exotic phases of quantum matter, such as unconventional superconductivity, quantum criticality and strange metal phase.

This thesis describes the development and optimization of the first molecular tools to study the enzyme PLA2G4E.

To what extent can digital technologies be considered as authorities?

This thesis describes the Multi-site All-Sky CAmeRA (MASCARA), which consists of two small robotic telescope designed to detect exoplanets around the brightest stars in the sky.

Talha Gunay has recently authored a policy brief for the Horizon 2020 project, MIGNEX. The brief acknowledges the relocation of returnees as a potentially viable solidarity tool, provided that it is implemented with effective monitoring and that the mandatory relocation of asylum seekers or cancellation…

Promotor: Prof.dr. G.R. de Snoo, Prof.dr. G.A. Persoon

NWO-ALW has funded the project Climate impact on human evolution: age calibration of the ICDP Hominin Sites and Paleolakes Drilling Project (HSPDP), led by PIs Cor Langereis and Guillaume Dupont-Nivet (Utrecht University).

Missiles that travel at approximately six thousand kilometres per hour, up to 5 or 6 times the speed of sound. Has Russia used those against Ukraine and how is that possible? In Leiden University’s Dutch video series ‘De Werkplaats’, Danny Pronk, political scientist, security expert, and researcher…

Dutch coalition parties VVD and CDA want to tighten asylum policy and have launched a plan to grant two types of statuses to refugees. They also intend to partially restrict the right to family reunification. However, this plan is facing strong opposition. With the proposal, the government can expect…

The Dutch Public Prosecution Office is investigating whether to prosecute care workers involved in the Vlaardingen foster child case. Mariëlle Bruning told ‘de Volkskrant’ it will be difficult: 'It must be established that the care worker knew about the abuse.'

Lecture, LUCL Colloquium - Series '24/'25

An international team of astronomers, including astronomers from Leiden University, has found the missing link in the path taken by water through star-forming clouds and young stars to comets and planets. They did so with the help of the ALMA observatory in Chile. The researchers published their findings…

Promotor: H.S. Overkleeft, Co-promotor: B.I. Florea

Promotor: A.H. Meijer, Co-promotor: B.E. Snaar-Jagalska

PhD defence

PhD defence

What does a 19th-century exhibition of traditional utensils from the province of Zeeland tell us about the current rise of populism? A lot, Ad Maas will say in his inaugural lecture.

Lecture

In this work, I explore the creation of new methods that optimize simulations of the gravitational N-body problem. Specifically, I take advantage of the recent popularity of Machine Learning methods to find tools that can suit this problem.

Promotor: E.F.A. Deprettere, Co-Promotor: A.C.J. Kienhuis

The type-IV secretion system (T4SS) is a machinery able to transfer DNA and proteins between bacteria and in certain cases also to eukaryotic cells.

Professor Johan Rooryck will be examining cognition and core knowledge systems and how possession is expressed in different languages. Rooryck and fellow researchers have been awarded two NWO grants totalling 2.75 million euro to carry out two research programmes: 'Knowledge and Culture' and 'Lend me…

On 23 February 2011, Hans de Iongh gave a Skype lecture for a group of 15 students of the Duke University of North Carolina, USA on the invitation of Dr Andrew Jacobson.

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

Lecture

Leiden psychologist Carsten de Dreu was presented with the Spinoza Prize by Education Minister Van Engelshoven on 12 September. The award of 2.5 million euros will allow him to continue with his pioneering research on group dynamics.