This article studies the securitization of immigration in the United States of America (U.S.), through the analysis of the National Security Strategies (NSS) published between 2002 and 2017, using a two-layered analytical framework that combines securitization theory and agenda setting theory.

On 7 November 2018, Catherine Harwood defended her thesis 'Navigating Between Principle and Pragmatism: The Roles and Functions of Atrocity-Related United Nations Commissions of Inquiry in the International Legal Order'. The doctoral research was supervised by Prof. dr. L.J. Van den Herik and Prof.…

The program group Forensic Family and Youth Care Studies is located in the Faculty of Social and Behavioural Sciences of Leiden University near Central Station.

Are you an ambitious student looking to get the most out of your time at university?

Drawing on insights from past and contemporary scholars and world leaders, the report explores the concepts of a new social contract, a new global deal, and networked and inclusive multilateralism introduced recently by Secretary-General António Guterres to help the United Nations better grapple with…

This book offers novel perspectives on the national and international dimensions of the post-war welfare state in Western Europe and North America.

The group Theoretical Physics of Life Processes, led by Helmut Schiessel, focuses on the physics of chromatin, the DNA-protein complex that fills the nuclei of eukaryotic cells.

The program group Learning and Behavior Problems in Education is located in the Faculty of Social and Behavioural Sciences of Leiden University near Central Station.

The programme group Parenting, Child Care and Development is located in the Faculty of Social and Behavioural Sciences at Leiden University near Central Station.

Promotor: Prof.dr. W.T.F. den Hollander, Prof. dr. E.A. Verbitskiy

Arts and leisure

The United Nations celebrates its 75th anniversary this year. With the corona crisis and rising nationalism, there’s not much cause for celebration. Which challenges will the global organisation have to overcome to be assured another 75 years of existence?

The US travel restrictions are deeply regrettable. Support will be offered to students and staff who are affected.

Subproject of the ERC project 'Challenging the Liberal World Order from Within: The Invisible History of the United Nations and the Global South'.

Subproject of the ERC project 'Challenging the Liberal World Order from Within: The Invisible History of the United Nations and the Global South'.

Subproject of the ERC project 'Challenging the Liberal World Order from Within: The Invisible History of the United Nations and the Global South'.

Young academics often face uncertainties in their academic careers. It is for precisely this reason that Leiden postdocs recently united in a representative body. The Leiden University Postdoc Assembly (LUPA) wants to be a positive force for change, says Eduard Fosch-Villaronga.

“United Nations peacekeeping is a proven investment in global peace, security, and prosperity. Together, let us pledge to do all we can to enable that mission to succeed”. – Secretary-General António Guterres

Within the bachelor's program of Education and Child Studies, we include the minor Kindermishandeling en Verwaarlozing: een levensloopperspectief and several other courses.

Historian Alanna O’Malley has been appointed to a brand-new Professorial Chair in United Nations Studies in Peace and Justice in The Hague. This extra attention for the UN comes at a significant moment in world history, she says.

Dr. Joris Larik, Assistant Professor of Comparative, EU and International Law at LUC The Hague, has co-authored a report entitled 'UN 2.0: Ten Innovations for Global Governance 75 Years beyond San Francisco'.

From 1 August 2018, Alanna O'Malley was appointed as Chair of United Nations Studies in Peace and Justice, focusing on the ‘lesser-known actors’ of the UN: women, the youth, the agents of informal diplomatic networks within the UN and actors from the Global South. This Special Chair has been created…

The aim of this study was to provide insight into how teachers in higher education can be supported in the design, implementation and evaluation of group assignments by developing a theoretical and evidence-based framework for the design of group assignments.

On 1 April 2020, Ivan Romashchenko defended his thesis 'Related Party Transactions and Corporate Groups: When Eastern Europe Meets the West'. The doctoral research was supervised by Prof. S.M. Bartman en Prof. A. Radwan (Kaunas, Lithuania).

In this article, Tokdemir & Klein examine the strategic actions of governments against domestic terrorist groups and domestic terrorist groups’ reactions to such actions.

Source: Biochem Pharmacol, Volume 95, Issue 4, pp. 290-300 (2015)

Can SMILE, our multi-component intervention, which combines cognitive-behavioural therapy for insomnia, mindfulness, stress, and lifestyle components, improve sleep quality? Can it also improve mood and quality of life and prevent depression and anxiety in the long term?

Tom Buitelaar is an Assistant Professor in the War, Peace & Justice program of the Institute of Security and Global Affairs. This paper suggests a number of important avenues for states, the UN, and the ICC to improve the likelihood that the ICC receives assistance from UN peace operations.

Willemijn Aerdts, lecturer at ISGA, discussed the Russian interference in the domestic affairs of Western countries on Dutch radio BNR.

How does self-reliance lead to a decrease in collaboration for public goods?

The book reinterprets the role of the UN during the Congo crisis from 1960 to 1964, presenting a multidimensional view of the organisation.

PhD Defence

As an interdisciplinary institute in the field of Security Studies, the Institute of Security and Global Affairs (ISGA) covers various topics in its research, one of which is the United Nations and the impact of this global organization in the world.

Why did some Eurasians opt for staying in the former colony while others left for the metropolis or another country?

This study seeks to partially fill the knowledge gap about national culture in Africa, basing its research on data on ethnolinguistic groups (instead of administrative regions).

Tom Buitelaar is an Assistant Professor in the War, Peace & Justice programme of the Institute of Security and Global Affairs. This paper discusses four important challenges to the involvement of UN peace operations in international criminal justice: its effects on host state relations, peace and justice…

How did free agents cooperate with the VOC and the WIC, through lobbying for private interests within the Companies as well as at the highest political levels?

The United Arab Emirates has announced that it is to open a so-called ‘Space Court’ which will operate as an arbitral tribunal for space-related disputes.

On 16-17 June 2022, Valentina Carraro presented a paper on ‘Overlapping Institutions in the United Nations human rights system’ at the Politicologenetmaal conference, Radboud University, Nijmegen.

From 13 to 24 June 2022, the Summer School on the European Union, the United Nations and Global Governance, supported by the Erasmus+ (Jean Monnet) Programme was held for the second time.

Promotor: A.P. IJzerman

This thesis describes the design and development of subunit‐selective inhibitors of particular catalytically active subunits of human constitutive proteasomes and immunoproteasomes.

In this study, we evaluated the influence of supercritical carbon dioxide (scCO2) spray drying conditions, in the absence of organic solvent, on the ability to produce dry protein/trehalose formulations at 1:10 and 1:4 (w/w) ratios.

What is better for waste recycling: a plastic, paper or ceramic cup? A bio-based or fossil-based coating? Waste sorting at the source or at a recycling facility? Ask ten experts and you will get ten different opinions. We can all agree on one thing: doing nothing is not an option. Thus, Leiden University…

The crisis in Iran seems to have settled and both countries are claiming victory. The Americans say that they taught Iran a lesson, but Iran projects the contradictory. Now, who is right? On Thursday 9th January, Bert Koenders commented on this on BNR News Radio.

On Thursday 24 of June, GTGC’s Assistant Professor Valentina Carraro, presented her work on regime complexity during the Conference of the Academic Council on the United Nations System (ACUNS).

United Nations Global Pulse, an initiative of the UN Secretary-General on big data and AI, recently launched the Data Fellows program. Kevin Duisters, PhD in Statistics at the Mathematical Institute, was selected to take part in its first cohort of eight international students.

Master projects are available in