On 21 March 2019, James Welch defended his thesis 'The Grotius Sanction: Deus Ex Machina. The legal, ethical, and strategic use of drones in transnational armed conflict and counterterrorism'. The doctoral research was supervised by Prof. dr. P.B Cliteur.

Enforcement of group cooperation fails because of discriminatory punishment, according to research by Welmer Molenmaker and colleagues. When group members have different backgrounds, punishment turns into a double-edged sword: no longer used just to prevent group exploitation, but also to break the…

Is blended care a feasible and effective treatment method for social anxiety in adolescence?

The integrity and reliability of academic research are of fundamental importance to the University. All parties, both within the University and outside, must be able to have confidence that our research is conducted in a scrupulous, fair, verifiable, impartial and independent manner. To make sure you…

Promotor: P. J. J. Hooykaas Co-promotor: B. S de Pater

The present thesis focuses on the pharmacological concept of drug-target interaction, which dates back to the beginning of modern pharmacology.

Within the Chinese medicine, more than 80% of the constituents of the preparations are derived from plants. Like any other organism, plants are constantly interacting with their changing and often harsh environment during the various phases of their life cycle.

Our research is aimed at a smoother and speedier transition from preclinical research to pharmacological interventions, and the delivery of drugs in the human body by use of small molecules and biologics.

In populations with a seed-bank, individuals can temporarily become dormant and refrain from reproduction until they can become active again. The repository of all dormant individuals in the population is called the seed-bank. Seed-banks are observed in many taxa, including plants, bacteria and other…

This thesis describes the structural and biochemical characterization of the β-lactamase BlaC from Mycobacterium tuberculosis (Mtb), and the Alr and YlmE proteins from Streptomyces coelicolor A3(2).Mtb is the main cause of tuberculosis.

Do general practitioners recognize children with or at risk of problematic anxiety and is there a pattern that might help differentiate those with and without anxiety disorders in general practice?

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).

β-Lactamases are enzymes that can break down β-lactam substrates, such as antibiotics, preventing the use of these antibiotics for the treatment of various infectious diseases. However, some compounds, β-lactamase inhibitors, can block these enzymes allowing for possible treatments using a combination…

Leiden University and the city of The Hague are working closely together to increase the impact of our research and education in order to contribute as much as possible to the development of the city.

This special issue focuses on emerging trends in the implementation of the WPS agenda. In reviewing the resolution 20 years since the passing of Resolution 1325, Newby and O'Malley have highlighted the gaps in implementation.

On 26 June 2019, Lisa Louwerse defended her thesis 'The EU’s Conceptualisation of the Rule of Law in its External Relations: Case Studies on Development Cooperation and Enlargement'. The doctoral research was supervised by Prof. C.A.P. Hillion.

A main goal of MSBB research is to address the major bottle-necks in combatting viral diseases: the lack of experimental models that are representative of human pathology and are cost effective and versatile. Viral diseases such as those that cause viral hemorrhagic syndromes or severe acute respiratory…

Cardiovascular diseases are the primary cause of death in the world with atherosclerosis as primary underlying cause.

Promotor: E. Bouwman, Co-promotor: S. Bonnet

Delineating psychophysiological endophenotypes of social anxiety disorder

Moritz Jesse, Associate Professor of EU Law at the Europa Institute, has published his book, “The Civic Citizens of Europe: The Legal Potential for Immigrant Integration in the EU, Belgium, Germany, and the United Kingdom”.

This socio-legal study focuses on the implementation of climate change response laws and policies in developing countries with a weak rule-of-law environment, and their (unforeseen) effects on vulnerable peoples’ land rights.

Restructuring and insolvency laws play a pivotal role in addressing the often conflicting interests of stakeholders of financially distressed companies. Whereas financial distress is an inherent risk of entrepreneurship in market-based economies, legal tools serve an important role to ensure an orderly…

The intradermal administration route is attractive for vaccine delivery, because of the highly populated antigen-presenting cells in the skin. However, the skin’s main physical barrier, the stratum corneum, prevents vaccines from entering the skin.

On 5 September, Elize de Mul defended the thesis 'Digital Döppelgangers: identity in the Culture of Imagination'. The doctoral research was supervised by Simone van der Hof and Esther Keymolen.

Clinical psychology is a discipline concerned with the application of psychological science to the assessment and treatment of mental disorders.

Attitudes towards cultural heritage have long been characterised by an ‘endangerment sensibility’ concerned with preventing losses. Recently, however, critical heritage scholars have argued that loss can be generative, facilitating the formation of new values and attachments. Their arguments have focused…

Are you interested in the neurocognitive and biological roots of learning, behaviour and emotions in children? If so, the programme in Applied Neuroscience in Human Development might be the specialisation you are looking for.

Dutch activist Frank van der Linde has initiated summary proceedings against the extension of the emergency order following the recent disturbances in Amsterdam. Wim Voermans, Professor of Constitutional Law, comments on the case in Dutch newspaper ‘de Volkskrant’.

Crises arising from terrorism, war, violence, cyber threats, and natural disasters dominate world news and make crisis and security a heavily politicised and hotly debated topic at the top of the national and global societal and governance agenda. This master Crisis and Security Management focuses on…

Crises arising from terrorism, war, violence, cyber threats, and natural disasters dominate world news and make crisis and security a heavily politicised and hotly debated topic at the top of the national and global societal and governance agenda. This master Crisis and Security Management focuses on…

Jos F. Brosschot has been appointed as a professor by special appointment on the chair ‘psychophysiological mechanisms of stress in daily life’. This chair has been created by the Foundation for Research into Psychosocial Stress.

The Digital Society research agenda was presented by the Dutch universities during the VSNU Impact festival on 23 November.

Health psychologist Kaya Peerdeman has won the article award of the Postgraduate School For Research and Education in Experimental Psychopathology (EPP) for the best academic paper in 2015-2016. Published in European Journal of Pain on 19 April 2017.

Leiden archaeologists investigate how people in the past impacted their environment. Together with scientists, environmental scientists, and humanities experts, they use this information to draw conclusions about the present – and show what we can learn from it for the future.

In ancient times, the steppe in the hinterland of Petra (Jordan) was transformed into a green oasis. This project tries to shed insights in the agricultural, water management and societal processes resulting in this transformation. This will be accomplished by practicing an interdisciplinary research…

At Psychology Lab on Wheels, we take your privacy and the security of your personal data very seriously. We want to assure you that all the information collected during this study will be handled in accordance with the General Data Protection Regulation (GDPR).

Make sure you have a suitable place to work or study at home.

In case of serious illness, treatment in the Intensive Care Unit (IC) may be necessary. Intensive care treatments has improved over the years and more and more seriously ill patients are surviving admission to the ICU. This favorable development however has a downside since long-term consequences of…

This is an Erasmus+ International Credit Mobility project of the Faculty of Social and Behavoriural Sciences with Macquarie University in Australia.

The University Libraries provide access to a wealth of information: from e-journals, e-books and databases to printed material. The libraries are more than just a gateway. As a service organization we also help researchers find information, manage their data, assess the best places to publish their…

Where you end up depends on the chosen study direction, your own skills and interests.

Understanding the evolving landscape of extremism in the 21st century.

EU Cyber Direct – EU Cyber Diplomacy Initiative supports the European Union’s cyber diplomacy and international digital engagements in order to strengthen rules-based order in cyberspace and build cyber resilient societies. To that aim, we conduct research, support capacity building in partner countries,…

An effective and equitable approach to resource conflicts?

Leiden University wants to create a safe and stimulating environment for everyone. However, you may experience issues at work that you cannot solve yourself. Your first point of contact for such situations is your supervisor. If you feel you cannot talk about it with your supervisor, you can turn to…

How can we facilitate the early recognition of stress and anxiety in the classroom and collaborate with schools in providing low-threshold interventions?