The solar system was formed approximately 4.56 billion years ago. Despite the numerous theories that have been developed over the years, the formation and evolution of the solar system still remain unclear.

This thesis addresses the chemical processes that determine the compositions of giant planet atmospheres.

‘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).

Within the same species of butterfly many different wing patterns can occur. How is this possible? According to researchers Ben Wielstra and Emma Berdan, of the Institute of Biology Leiden (IBL), the answer lies within supergenes. A supergene is a part of a chromosome that contains many strongly linked…

Jet Bussemaker, former Minister of Education, Culture and Science, has been appointed Professor at Leiden University Medical Center (LUMC) and Leiden University with effect from 1 July 2018. She will be the holder of the new chair in ‘Science, Policy and Societal Impact, focusing on Healthcare'.

Ben Wielstra studies balanced lethal systems, in which half of the offspring die before birth. In the journal Current Biology, he explains in an accessible way how such a disadvantage can originate in nature.

Ben Wielstra and his team have received a ENW-M-1 grant. This grant of 354.000 euros is awarded by NWO, and will enable the researchers of the Institute of Biology Leiden and Naturalis to continue their evolutionary newt research.

Lecture

In honor of Nobel laureate ethologist Niko Tinbergen, the Leiden University in collaboration with the NRC Handelsblad, NWO, and Naturalis Museum Boerhaave organizes the annual Tinbergen Lecture.

The image of the European Union (EU) as a remote law-making machine is widespread. Quite often journalists and politicians deliberately depict ‘Brussels’ as bureaucratic, even undemocratic, bypassing its citizens. And many of us buy into that image. Nikoleta Yordanova, Anastasia Ershova and Aleksandra…

In response to the challenges imposed by the COVID-19 pandemic, governments worldwide adopted a variety of strategies that include not just preventive or mitigation strategies adopted to 'flatten the curve', but also interventions aiming to mitigate economic and social impacts of the pandemic.

Since 2009-2010, the West viewed China as more assertive. Especially after Xi Jinping came to power in 2012, the country abandoned Deng Xiaoping’s ‘low profile’ foreign policy. Friso Stevens explains in his dissertation where this change has come from. The dissertation defence is on 28 March.

On Thursday 11 November, Women in International Security Netherlands (WIIS-NL) held its inaugural webinar event on 11 November with four speakers in conjunction with the International Centre for Terrorism (ICCT) and the Chair UN Studies in Peace and Justice at Leiden University.

We perform multidisciplinary research at molecular, cellular, and organismal levels of animal biology to increase fundamental understanding of health and disease.

Valerie Pattyn has received Veni funding for her project Policy evaluations evaluated. When do they prompt an overhaul of policies? 'I am really looking forward to immerse myself in this study, and I am enormously grateful for this unique opportunity'.

The research aims to explore the evolutionary adaptability of enzymes and the impact of temperature on protein evolution pathways, using M. tuberculosis β-lactamase BlaC as the object of study. Enzymes inherently embody a delicate balance between activity and stability, and the acquisition of new enzymatic…

Promotor: Prof.dr. S.F. Portegies Zwart

Book project on how European policy is made and implemented, with a focus on how that process can be understood and lead to policy change.

On 16 November 2023, Dr Joris Larik gave a presentation in the framework of the webinar series of the Centre for Inclusive Trade Policy, a UK-based centre of excellence for innovative trade policy research. Dr Larik's presentation was entitled 'Virtuous rivalry? The EU’s and UK’s normative trade policies…

Mooc Eu Policy Europe Europa

How interest groups, differences in policy issues and institutional differences between countries affect whether public opinion is translated into policy?

Faculty of Governance and Global Affairs has an opening for a policy advisor. The position is for Senior policy advisor and head of the cluster Education, based in The Hague. The deadline for applying is 11 September 2017.

The question of how military interventions can best transition to a long term counter-terrorism policy forms the core research question of three interlinked reports. This research project has been completed with support of NATO’s Science for Peace and Security Programme. Leiden University researchers…

LUCIR (Leiden University’s Centre for International Relations), in cooperation with ISGA (Institute of Security and Global Affairs) and GTGC (Global Transformations and Global Challenges Initiative), will host a conference on 2 and 3 December 2021 about the lessons that may be learned from Afghanistan.…

Circumstellar discs are the reservoirs of gas and dust that surround young stars and have the potential to become planetary systems.

Diverse types of exoplanets such as gas giants on close-in orbits (hot Jupiters) and young massive giants on wide orbits (super Jupiters), with no analogs in the Solar System, pose challenges but also opportunities to our understanding of planet formation and evolution.

As per 1st May 2019, Leiden University appointed Bram Klievink as professor of Public Administration with a focus on digitalization and public policy. The new chair has been established at the Institute of Public Administration of the Faculty of Governance and Global Affairs of Leiden University. Bram…

The Moria deal has been marked as a controversial issue in the formation process for a new Dutch government – a development that fits with the government’s hesitancy in implementing what is already a meagre asylum policy, writes master’s student Nina Fokkink in an article in Dutch newspaper NRC.

Taking responsibility concerning colonial heritage and restitution is a pressing issue for countries and museums worldwide. On 23 and 24 May, a Leiden University interdisciplinary symposium will explore new perspectives as a basis for policies. Organising professors Carsten Stahn and Pieter ter Keurs…

Minister Silvania of Curaçao has announced that Germaine Rekwest, who was awarded a PhD from Leiden University in September, will support him on treaty policy for Curaçao. The minister announced this in his travel report.

Bert Koenders, professor of Peace, Law and Security at the Institute of Security and Global Affairs, has been appointed chairman of the Advisory Council on International Affairs (AIV), or foreign policy.

On 8 and 9 May Jorrit Rijpma, Associate Professor at the Europa Institute, participated in the workshop on a comprehensive feasibility study on an ASEAN common visa in Kuala Lumpur.

On Monday 25 September, Marion Collewet, Matthew di Giuseppe, Jarek Kantorowicz, and Hendrik Vrijburg presented their reseach on 'Building Northern Public Support to Finance Climate Policies in the Global South' during a GTGC lunch seminar.

Citizens, journalists and scholars notice that foreign policy in, and of, the European Union, is ‘de-Europeanising’. Political scientist Daniel Thomas (Leiden University) offers a theoretical exploration of the likely implications. He expects that it will become more difficult for the EU to achieve…

This interdisciplinary conference, to be held on 26-27 June 2017, will bring together lawyers interested in EU law and criminal law, criminologists, political scientists, and philosophers to jointly reflect on the development of the EU's criminal policy.

In an essay Professors Jan Willem Erisman (Leiden University), Chris Backes (Utrecht University) and Wim de Vries (Wageningen University) suggest amending nitrogen policy in the Netherlands. They call for a shift from a deposition to an emissions policy, with sectors responsible for reducing their own…

Consensus among Member States on the return of failed asylum seekers is currently lacking. For that reason, the Head of the European Commission, Ursula von der Leyen, wants new legislation that provides for a uniform policy. Armin Cuyvers, Professor of European Law, commented on the issue on Dutch radio…

University lecturer Casper Wits wrote an opinion piece on the ongoing diplomatic tensions between the European Union and China for POLITICO. In this article, he argues that 'rather than shrinking from the fight, the EU must develop a China policy that prioritizes progressive values and human rights.…

Professors argue for independent council for government policy

The Modern Migration Policy Act aims to ensure that the admission of regular migrants is effective and manageable.

To what extent can Parliament limit freedom with the so-called 2G policy? Associate Professor of Constitutional and Administrative Law Ingrid Leijten of Leiden University discussed this topic on NOS Nieuws en Co.

Dr Gianclaudio Malgieri, Associate Professor of Law at eLaw, will receive the AI Policy Leaders Academia Award from CAIDP Europe (Center for AI and Digital Policy Europe) alongside Professor Alessandro Mantelero from the Politecnico di Torino. The award is 'for their collective call on EU policymakers…

How humans and rats cohabit the cityscape and what consequences this has for both sides of the conflict?

What is the effect of a certain regime on a country’s migration policy? Political scientist Katharina Natter compared the migration policy of autocratic Morocco with that of democratising Tunisia. Her findings challenge some of the core assumptions.

Promotor: Prof.dr. E.F. van Dishoeck, Co-promotor: S. Bruderer

Reputation literature has provided crucial insights about the evolution of the US regulatory state. Daniel Carpenter’s influential account painstakingly demonstrates the relevance of reputation to bureaucratic ‘power’ and to early institutional state-building in the US context. We argue that adopting…

Promotor: Prof.dr. E Gittenberger, Co-Promotores: C.H.J.M. Fransen, Dr. B.W. Hoeksema

For a long time, bird song was considered as a typical male trait. But over the last twenty years, research has shown that a lot of female songbirds sing as well. Female scientists turned out to be the key factor in these findings, amongst others from the Institute of Biology Leiden.