Promotor: R. Tijdeman

This project seeks to integrate scientific research and practical knowledge in the study of the mechanisms that make dialogue an effective tool for communication, teaching, and thinking.

We have studied the impact of particle shape anisotropy, multivalent interactions and flexibility on systems of micron-sized colloidal particles.

This ecological community has long been known to affect host biology, and their diverse roles have been further clarified in recent years following numerous studies of animal:microbiota interactions in diverse systems.

On a referendum held on May 21, 2006, 55.5% of voters in Montenegro voted in favor of their country’s independence. While in numerical terms the outcome shows overwhelming support for independent Montenegro, from a normative standpoint it was a narrow win. The normative framework that regulated rules…

On 20 October 2021 Michael Ramsden defended the thesis 'The Role of the United Nations General Assembly in Advancing Accountability for Atrocity Crimes: Legal Powers and Effects'. The doctoral research was supervised by Prof. N.M. Blokker.

On 16 June 2020, Andrea Varga defended her thesis 'Establishing State Responsibility in the Absence of Effective Government'. The doctoral research was supervised by Prof. N.J. Schrijver and Prof. F. Baetens (University of Oslo).

Kohei Suzuki, Assistant Professor at Institute of Public Administration, and two other authors researched the topic of innovation by governments in response to expected population decline.

The AI research in the area of peace, justice and security at each of the three universities in Zuid-Holland complements the AI research being performed by the other two. Three researchers explain. Part one in a series of five about themes that the three universities’ AI research covers.

Benoeming Willemijn Aerdts tot lid permanente commissie Vrede en Veiligheid

On 12 May, Joachim Koops, Professor of Security Studies and Scientific Director of the Institute of Security and Global Affairs (ISGA), was invited to brief the United Nations Department of Peace Operations in New York on the situation in Ukraine, options for the protection of civilians and lessons…

What is the effectiveness of two school-based skills-training programs in promoting mental health?

Up to 50% of individuals with Parkinson's disease develop cognitive impairment over time; this study explores the use of 'practice effects' on neuropsychological tests as an early predictor of cognitive decline.

Political scientist Femke Bakker (Leiden University) is going to investigate whether meditation affects political behaviour. Bakker has been awarded a PEACE Grant by the Mind & Life Institute, which enables her to conduct innovative, experimental research. The aim is an answer to the question whether…

The STAP study examines the cost-effectiveness of Written Exposure Therapy (WET) for post-traumatic stress disorder (PTSD) symptoms in primary care settings.

How can photorealistic 3D scenes help predict whether interventions in urban public spaces will foster citizens' sense of security?

On 9, 11 and 13 October the ‘The Hague Peace Conference Simulation’ took place at the Wijnhaven building of Leiden University.

This study is the first to directly relate brain development to sex differences and school performance. The results debunk the myth that brain development is slower in boys.

The role of the interfacial environment during electrochemical reactions has been increasingly valued, especially for those reactions involving protons or hydroxyl ions.

Natalia Sobrino-Saeb, third-year student at Leiden University College The Hague, won the challenge by the Ignitor Fellowship Program held by the Nobel Peace Center for her essay on the threats to journalism in Mexico. On December 10th Natalia met the Committee of the Ignitor Fellowship in Oslo and attended…

Engineered nanomaterials (ENMs) are widely used, and nanotechnological innovations grow with rapid pace. Studies on nanotoxicology have demonstrated that chemical toxicology as well as particle toxicology should be accounted for in predicting the safety of ENMs.

To conclude, this thesis provides valuable methodological insights to address data gaps and improve environmental impact assessments within the circular economy, with a particular focus on product reuse and sharing practices. Through empirical analysis and innovative approaches, it aims to support informed…

In this article, Martin Sievert and Jonas Bruder investigated whether and how administrative burdens influences citizens' perceptions of welfare policies and attitudes towards beneficiaries.

In this research project characteristics of effective instructional development were identified that are appealing to medical teachers and relevant for medical education.

Promotors: Prof.dr. P.G.L. Klinkhamer, Prof.dr. P.M. Brakefield

This thesis describes the role of pollution, specifically neonicotinoid insecticides, as an actor of the ongoing biodiversity decline.

Natalia Sobrino-Saeb has attended the Nobel Peace Prize award ceremony in Oslo. She was awarded this honour after winning the essay competition of the Nobel Ignitor Fellowship, a programme that seeks to inspire young changemakers around the world – for change can be made by all of us: “You never know…

The International Day of Light (IDL) celebrates the ubiquitous role light has in our lives. From Argentina to South Africa, Japan and Pakistan, several events have taken place across all continents on May 16. The date is a token for people around the globe to connect with the importance of light in…

Homicide followed by the suicide of the perpetrator often leads to shock and incomprehension. It has been suggested that media reporting on such cases could lead to an imitation effect.

On 20 November, Special Professor of United Nations Studies in Peace and Justice, Alanna O'Malley, presented her research agenda for the next 3 years. An ambitious agenda full of projects to gain more insight into the origin and functioning of the UN.

Prof. Carsten Stahn, Professor of International Criminal Law and Global Justice and Programme Director of the Grotius Centre for International Legal Studies in The Hague, explores some of the connections between just post bellum and peacebuilding, based on findings of the Jus Post Bellum project and…

During this lunch seminar series all researchers from Leiden Law School can present their research. The idea is to hear in a simple and nice way what researchers from other research programs and institutes are working on. During a seminar two or three speakers will present their research.

The AI research in the area of peace, justice and security at each of the three universities in Zuid-Holland complements the AI research being performed by the other two. Three researchers explain. Part one in a series of five about themes that the three universities’ AI research covers.

The Hague Diplomacy Blog is the new monthly blog of The Hague Journal of Diplomacy (HJD), the ISGA-based research journal for the study of diplomacy.

This article provides a list of the concepts and key elements that should be considered when creating effective communication messages.

Anthropogenic noise has been shown to affect marine animals in various ways, this may have fitness consequences at individual and population level. This thesis aims to increase insight into the quantification of sound-induced behavioural responses that are relevant to fitness, and into factors that…

Jaroslaw Kantorowicz and Rok Spruk examine the contribution of institutional reforms to economic growth.

Promotor: Carel J. ten Cate, Co-Promotor: Hans W. Slabbekoorn

On 24 November 2015, Prof. Carsten Stahn participated as external expert in a special plenary session of the Assembly of States Parties on the efficiency and effectiveness of Court proceedings, chaired by the co-chairs of the Study Group on Governance of the Assembly.

Valérie Pattyn, Assistant Professor at Leiden University, researched

Does an Emotional Working Memory Training show a beneficial transfer effect on emotion regulation (reappraisal) capacities in patients with Borderline Personality Disorder?

After a successful pilot in 2016, the second edition of the International Arbitration Course took place at the end of August. The course is a tripartite collaboration between the Grotius Centre for International Legal Studies, the Department of Civil Law of Leiden Law School and the Permanent Court…

The United Nations (UN) made history in October 2000 when Resolution 1325 on Women, Peace, and Security (WPS) was unanimously adopted.

What are the biological effects of Chinese herbal medicine in regulation of cancer cell metastasis?