The 2022 Academy is co-organised by Leiden, Delft Erasmus Universities (The LDE Alliance) from the Netherlands and the National Research and Innovation Agency (BRIN). Aim of this five day programme is co-creation in the field of teaching and research on sustainable urbanisation. It also aims to facilitate…

Leiden University has published a research report on the working of the Temporary Act on the Transparency of Fast-track Liquidation in the Netherlands. The Act aimed to facilitate faster and more transparent business termination. Has this been achieved?

In the last five years the Dutch children’s ombudsman has developed into a full-fledged supervisory body monitoring compliance with children’s rights in the Netherlands. A fuller engagement with its statutory tasks, greater involvement of children and strengthening the autonomous position of the children’s…

Researchers from Leiden University, together with SEO Amsterdam Economics, have been chosen to evaluate the Dutch Telecommunications Sector (Undesirable Control) Act and the Investments, Mergers and Acquisitions (Security Screening) Act.

A quarter of all Dutch students suffer burn-out symptoms, and an even greater percentage regularly experience emotional exhaustion and tiredness. At a symposium on 7 May students were given tips for handling stress.

Sense Jan van der Molen is vanaf 1 maart de nieuwe wetenschappelijk directeur van het Leiden Instituut voor Onderzoek in de Natuurkunde.

A delegation from Leiden University visited the Netherlands Institute Morocco (NIMAR) in Rabat at the end of February.

After nine years, Mirjam de Baar is leaving as vice-dean of the Faculty of Humanities. ‘It will take some getting used to letting go of this vice-deanship because the education portfolio is very close to my heart and I’ve worked hard for it in recent years in close cooperation with many colleagues.’

This is an Erasmus+ International Credit Mobility project of Leiden University’s Faculty of Science with National University of Kyiv, National University of Lviv, Odessa National Maritime University, Odessa National University, V. N. Karazin Kharkiv National University, The Main Astronomical Observatory,…

Evolutionary and ecological interactions affect species on genetic and phenotypic levels. This theme aims to understand these processes at multiple levels: from molecules to genomes to populations and to communities. Our research focuses on evolutionary responses to anthropogenic change, the role of…

Leiden biology students have determined the origin of exotic alpine newts in the Netherlands using a special DNA technique.

The Netherlands is an open country and should remain so. This is what the rectores magnifici of the Dutch universities write in an opinion piece. Because academic training that does not provide enough of an international perspective lacks quality and relevance to the job market and society.

Analysing the ways in which immigration structurally challenges and changes the organization and conceptual boundaries of national welfare states.

Research on this theme addresses the systemic risks faced by European societies and affecting the quality of life of European citizens.

The International Criminal Law programme prepares you for a successful career within a multidimensional field, in Europe or around the world.

In the specialisation Occupational Health Psychology, part of the Master in Psychology, you will integrate knowledge of several disciplines in psychology, with a clear focus on workers and their work setting.

Globalisation leads to more contradictions between national and international tax norms. It therefore seems necessary to revise the fiscal legislation. This is not only due to the problem posed by multinationals, but also to changing norms regarding tax burden distribution. Fundamental research on the…

Human activity, such as pollution, may disturb the balance of living water systems, which has consequences for biodiversity, but also for other functions such as water purification. Leiden University maps living water systems using the most advanced technologies.

Positive friendships are characterised by understanding mutual wishes and intentions, respect for each other’s boundaries and pro-social behaviour. Qualities that might be more challenging for autistic adolescents.

It's easier to understand Trump's America if you have a sound knowledge of the country's history. Research on the US has been given an impetus with the renewed Roosevelt Institute for American Studies. The institute in Middelburg reopened on 20 April with Leiden University as a key partner.

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.

Promotores: J. Jonkers, K.E. de Visser

The HJD Article Award is a biannual award given to the published research article which best advances the theoretical and/or empirical study of diplomacy.

On 17 October 2018, Thomas Sanders defended his doctoral thesis 'Invordering door de overheid: de invordering van geldschulden uit herstelsancties onder de Awb'. The doctoral research was supervised by Prof. mr. T. Barkhuysen and Prof. mr. M.W. Scheltema.

In this article, Madeleine O. Hosli and Wen Pan examine how intergovernmental dynamics shaped the European Stability Mechanism, using Liberal Intergovernmentalism to assess negotiation phases, the influence of major member states, and which theoretical assumptions hold or need qualification.

In this PhD-thesis several new and existing data science application are described that are particularly focused on applications for tax administrations.

Would you like Leiden University to be a more open workplace that recognizes and rewards all contributions, and an institution that creates and shares knowledge more freely with society?

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).

The world we live in is changing in many aspects at an ever-increasing speed. And it will continue to do so. How do we anticipate these changes, such as the increase in atmospheric CO2, the extinction of species and industrialisation?

The Role and Effectiveness of the G20. In this article, published in The Changing Global Order part of the United Nations University Series on Regionalism book series, author Jaroslaw Kantorowicz discusses the evolution of the G20.

This book by Damien van Puyvelde provides the first comprehensive English-language account of France's modern foreign intelligence and explores its evolution, operations, and role in global security.

To meet the rising demand for minerals driven by the global shift to clean energy technologies, ensuring responsible and resilient supply chains is critical. Minerals like cobalt, lithium, and nickel for batteries, neodymium and zinc for wind turbines, and indium for solar panels are essential.

This article examines to what extent bureaucratic responsiveness depends upon the source, the content and the salience.

Kohei Suzuki and his co-authors reflect on their extensive scholarly experience teaching comparative public administration across diverse countries including Canada, the Netherlands, Qatar, and the United States.

On 19 February 2020, Richard Jiang defended his thesis '‘Greening’ the WTO Ban on China’s Export Duties'. The doctoral research was supervised by Prof. M.C.E.J. Bronckers.

This book provides the answers, presenting clear insights into the current state of affairs and exploring future prospects.

Real-life processes are characterized by dynamics involving time. Examples are walking, sleeping, disease progress in medical treatment, and events in a workflow.

We present an extensive study of methods for exactly solving stochastic constraint (optimisation) problems (SCPs) in network analysis. These problems are prevalent in science, governance and industry.

This article investigates how temporary coalitions of non-state actors engage in international negotiations on environmental issues.

On the 4th of June, Andreas Joswig successfully defended his doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Andreas on this great result.

The debate in Europe about digital sovereignty, technological sovereignty, data sovereignty and strategic autonomy has been building over recent years at both the EU level and the level of individual Member States. The different concepts – and their diverse interpretations – cover the sovereignty concerns…

Promotor: Prof.dr. M. Ubbink

Promotores: Prof.dr. E.A.L. Biessen, Prof.dr. T.J.C. van Berkel

What political factors affect the speed or duration of EU legislative decision-making?

When EU member states signed the Treaty of Lisbon in 2007, they did not anticipate the manifold crises in store for them over the following years. Instead of the intended consolidation of a Union which had just gone through its most profound modernisation and biggest round of enlargements, the EU has…

This PhD-thesis presents a study on micron-sized particles, so-called colloids. By controlling the chemical and physical properties of these particles, such as the interparticle interaction and the particles’ shape, colloids can act as building blocks that self-assembly into larger structures.

The Hague Journal of Diplomacy (HJD) is the world’s leading research journal for the study of diplomacy and was founded in 2005. The journal is published by Brill.

Stakeholder engagement practices are on the rise in regulatory governance. This raises an important question regarding implications for regulatory legitimacy. Engagement mechanisms are not by default legitimizing: Even when initiated to tap into an array of ‘benevolent’ desiderata, unless carefully…

What factors can explain the dynamics of de facto statehood in Iraqi Kurdistan at internal, national and international levels? What has been the nature of the de facto statehood in Kurdistan since its inception?

Poly(lactic-co-glycolic acid) (PLGA) particles have been extensively studied as biodegradable delivery system to improve the potency and safety of protein-based vaccines. In this study we analyzed how the size of PLGA particles, and hence their ability to be engulfed by dendritic cells (DC), affects…