In connection with the approaching Dutch election, the Institute of Immigration Law of Leiden University will organise in collaboration with Amnesty International and JFV Grotius an election event on Wednesday 25 January 2017.

On 21 April 2016, Leiden University College The Hague, in collaboration with The Hague Institute for Global Justice and the T.M.C. Asser Institute, hosted a book launch and panel discussion for Dr. Joris Larik’s new monograph “Foreign Policy Objectives in European Constitutional Law”, which has recently…

When former Swedish Foreign Minister Margot Wallström announced in 2014 that Sweden would become the first state to implement a feminist approach to its foreign policy, her idea was met with giggles. [1] But the concept quickly spread around the world. In May 2022, the Netherlands became the 10th state…

We are developing the conceptual framework, which is new to this taxonomic group, and evaluate the current state of the art with respect to all critical parameters and transfer functions for a fully developed Population Consequences of Acoustic Disturbance (PCAD) model.

FluidKnowledge will investigate the past, present and future of evaluating ocean science. Regarding the past, it will ask how research priorities in ocean science evolved until now. Which lines of inquiry became hot topics, and which died out? Who became global players, who ended up in the periphery?…

Does a snake die when it bites its lip? Why will a mongoose survive a scorpion’s sting, but we humans perish? These questions occupied the minds of toxin-enthusiasts and Master’s students Biology Jory van Thiel and Roel Wouters. They collected information from many sources and published their findings…

Four green research institutes in Leiden are joining forces to integrate evolution and biodiversity research, at local and at the national level. Pivot in this collaboration is Frederic Lens.

BlaC is the β-lactamase of Mycobacterium tuberculosis. We show that it can recover from inhibition by clavulanic acid and that phosphate helps it do so.

I think we should go this way. This way! THIS! WAY!! Making yourself heard in a city can be difficult. That is not only the case for humans, but birds seem to be hindered by urban noise as well. Researcher Hans Slabbekoorn of Leiden University already showed that great tits in Leiden communicate differently…

European countries struggling how to deal with the issue of returning foreign fighters, women and children from the Caliphate

Policymakers and Academics Speaking with Each Other

American foreign policy in the period after the Second World War is often characterised as liberal. This is, however, not the full picture, argues university lecturer Andrew Gawthorpe. He has been awarded a Vidi grant to research and rewrite this popular narrative.

The Dutch Research Council (NWO) awarded behavioural biologist Hans Slabbekoorn (Institute of Biology Leiden) a grant of 750,000 euros to study fish and sounds around wind farms in the North Sea.

Like ants, termites and bees, some bacteria work together as a multicellular group. There is a strict division of labour in such colonies, to make the group more resilient to the outside world. Now researchers have found that some parts of the bacterial colony can take ‘for the greater good’ to a whole…

For nine years he worked on the three-volume standard work Plant Galls of Europe. It yielded 2300 pages about 10,000 species of European galls, abnormal outgrowths in plants caused by parasites. Hans Roskam from the Institute of Biology Leiden: ‘The abundance of galls says something about the natural…

Comparing gazes between Turin and other cities in the global north.

‘It's right and proper that we have policies to prevent terrorism,' says Francesco Ragazzi, university lecturer in International Relations at Leiden's Institute of Political Science. 'But the way the policies are designed and implemented can have unintended consequences. For example, when teachers are…

This book is the first comparative study of estimative intelligence and strategic surprise in a European context, complementing and testing insights from previous studies centred on the United States. It does extensive empirical analysis of open-source material and interviews in relation to three cases…

Arnold van der Valk on Food Council MRA.

‘It became very clear that Brazilian legislative policy was frail, obsolete and unreliable,’ says Felipe de Paula. He will defend his dissertation on the limits and possibilities of legislative policy in Brazil on Tuesday 27 March 2018.

Governments have increasing amounts of data at their disposal. How can big data be used in policymaking? And are governments ready to deal with all this data? That is what Sarah Giest, Assistant Professor at the Institute of Public Administration, is interested in.

The JASON Institute, together with the Jean Monet Centre of Excellence, Leiden University Campus The Hague, the Ministry of Foreign Affairs and Jonge Atlantici, is very pleased to invite you to the Symposium on European Defence- and Security Policy.

In this project, we will study the genetic and environmental drivers of woodiness and stem lignification at the level of plant‐to‐gene‐to‐molecule.

The book, published by Kluwer Law International, on drones entitled

Man-made sounds in and around the oceans stress marine life and have an impact on marine species and ecosystems by changing the underwater acoustic climate. Hans Slabbekoorn from the Institute of Biology Leiden pleads for technical solutions to mitigate problems of noise pollution. Science review paper…

If male budgerigars can successfully open a puzzle box with food, they become more attractive to females. Biologist Carel ten Cate and Chinese colleagues publish experimental evidence for this in a paper in Science on 11 January .

Ben Wielstra studies hybrid zones, regions in which distinct populations of organisms meet, mate and produce genetically admixed offspring. In the journal Current Biology, he introduces hybrid zones in an accessible way.

Streptomyces are filamentous bacteria that produce more than two-thirds of known antibiotics.

We will study how inoculation of former arable land with soil (including the microbiome, soil fauna and seeds/rhizomes of ground flora) from old forests along with planting targeted tree species mixtures will improve productivity and more rapidly restore forest-adapted communities and ulttimately result…

Research impact is measured in different ways. However, these indicators are often based on dubious calculations, says Ludo Waltman. Inaugural lecture on 21 June.

This thesis investigates how galaxies form and what diversifies the evolutionary histories of galaxies.

Daniel Rozen (45), at the IBL since September 2012, uses bacteria in laboratory tests on experimental evolution to study the ecology and genetics of adaptation. His research has applied importance, as it reveals how bacteria may be induced to produce new antibiotics. Last January, Rozen received the…

Evidence-informed policy-making is crucial for good governance. Yet, despite the abundance of evidence from research and evaluation available to decision-makers, we know little about the actual influence of evidence on government policies. The ‘Power of Evidence’ (PoE) research programme, directed by…

Rector Magnificus Carel Stolker was presented with a 'Diamond' on 8 June in recognition of Leiden University's role as a 'shining example' of male/female diversity. 'It's a question of determination,' says Stolker, 'and that gets results. For example, we are appointing an increasing number of female…

Criticism from doctors in the Netherlands about the policy to combat coronavirus is becoming louder. A letter raising their concerns was signed by one thousand doctors. It calls for a new debate on the current measures to deal with the crisis which were recently tightened. Supporters of the letter believe…

The Hague has announced that 70,000 refugees are expected to come to the Netherlands this year. How can situations like at the Ter Apel asylum centre - where asylum seekers had to sleep outside due to a lack of space - be prevented.

‘I did not expect to receive the grant, but it will make an amazing research possible,’ Michelle Spierings says. The researcher of the Institute of Biology Leiden (IBL) got awarded a Veni-grant of the Dutch Research Council (NWO).