Detecting and combatting crime is becoming increasingly complex. Security is high on the national and international agenda. The master’s programme Crime and Criminal Justice in Leiden provides the skills to face these challenges.

Aspergillus niger is an important industrial producer of organic acids and enzymes producing large amounts of spent fungal biomass.

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

The increasing resistance of pathogenic bacteria to antibiotics necessitates the discovery of new medicines.

The Violence and Violence Prevention research group investigates the complexity of contemporary violence, its various manifestations, and strategies for prevention.

Sweetie 2.0 is a research project commissioned by Terre des Hommes on online child sex tourism and criminal law.

Advanced UHF MRI techniques provide powerful tools for studying the zebrafish brain, an emerging model in neurological research. In this work, various MRI and localized MRS methods are optimized and employed for UHF strength for studying the zebrafish brain.

A story of Two Mosuls, The Resurrection of the Iraqi Armed Forces and the military defeat of ISIS. In this article, published in the Journal of Strategic Studies, the authors Maarten Broekhof, Martijn Kitzen and Frans Osinga discuss the military adaptation by the Iraqi armed forces and their role in…

In this thesis, bioorthogonal chemistry is combined with correlative light-electron microscopy to selectively label and study pathogenic intracellular bacteria within the host immune cell.

Leiden University is an international, broad-based university. We distinguish five core domains for our research and teaching activities.

A full overview of THEOR PhD theses.

On the basis of the characteristic aspects of a picture, certain computers can tell us what the picture is showing. They can learn this in the same way that young children are able to learn to recognize images. Further improving these techniques opens the way to a whole range of new applications. Biology…

LUCIR aims to bundle together, strengthen and disseminate existing research in the field of international relations.

The Multistakeholder Global Governance (MGG) Project is a four-year project which explores how far, and under what circumstances, multistakeholder constructions of global governance operate well, in terms of having capacity, effectiveness, and legitimacy.

El Chorro de Maita, Cuba

Why do some parties fail to settle conflict, even after long periods of fighting? ISGA PhD candidate Valerie Sticher suggests that costly concessions often stand in the way of a negotiated agreement. Conflict party members not only care about their in-group's welfare, but also want to avoid rewarding…

This volume contributes to the scholarly debate regarding the reception of Cicero and focuses on one particular moment in Cicero’s life: the period from Caesar's death (March 44 BCE) up to Cicero’s own death (December 43 BCE).

The recent terrorist attacks in Europe are presumably not just acts committed by individuals, but acts facilitated by larger jihadist networks. But how do such networks operate? Understanding their modus operandi can be useful knowledge to counter terrorist threats.

On 23 October 2019, Yoram Stein defended his thesis 'Spinoza's Theory of Religion: The Importance of Religion in Spinoza's Thought and Its Implications for State and Society'. The doctoral research was supervised by Prof. P.B. Cliteur and Prof. A.A.M. Kinneging.

This study aims to examine how South Korea (hereafter, Korea) and Japan, two neighboring countries in Northeast Asia, have been responding to and mitigating the spread of COVID-19.

This Leiden Law School page provides various information on Diversity & Inclusion at the faculty. It explains why D&I are key objectives, lists our current D&I projects, and outlines the faculty’s plans for improvements in these areas.

How do mycobacteria subvert the defenses of host immune cells?

To understand how multistakeholder global governance institutions operate well, the Multistakeholder Global Governance (MGG) Project is currently developing three case studies to compare differences and similarities between capacity, effectiveness, and legitimacy. The case studies explore these themes…

How were Spanish commanders fighting in the Low Countries between 1567 and 1577 portrayed in Spanish and Dutch narrative sources during the Eighty Years War?

Tuberculosis is a major global health problem caused by the Mycobacterium tuberculosis complex, claiming more than a million lives annually.

On 9 January 2019, Marieke Wierda defended her thesis 'The Local Impact of a Global Court: Assessing the Impact of the International Criminal Court in Situation Countries'. The doctoral research was supervised by Prof. dr. C. Stahn en Prof. dr. L.J. van den Herik.

Nanoparticles can be used as delivery systems for both small molecules and macromolecules such as proteins, peptides or oligonucleotides. This thesis focuses on the use of liposomes, nanometric vesicles formed by a lipid bilayer enclosing an aqueous core. Liposomes are highly versatile delivery syst…

The Translational Immuno-Pharmacology group works on translating the efficacy of anti-infective therapy from preclinical (e.g. in vivo) to clinical, and is led by Rob van Wijk. Infectious diseases, such as tuberculosis, are in constant need of new therapies that work better, faster, and with less risk…

Promotor: A.H. Meijer, Co-promotor: B.E. Snaar-Jagalska

Antibiotics are a class of medicine most people take for granted. But pathogenic bacteria are becoming more and more resistant to our antibiotics, and this poses a great challenge for future treatments. There is thus a great societal need to identify new molecules that can address new targets and be…

In this article, Dimiter Toshkov aims to explains the gender gap in COVID-19 vaccination attitudes.

In this article, Dimiter Toshkov investigates the determinants of COVID-19 vaccine hesitancy and refusal, focusing on Eastern, Southern and Western Europe.

Since 2022, a higher proportion of people in the Netherlands have been victims of cybercrime than of 'traditional' crime. The Bachelor in Cybersecurity & Cybercrime trains you to become an all-round cyber expert, equipping you to take on the fight against cybercrime.

New or improved treatments for chronic and acute illness.

Improving health, enhancing well-being and reducing health disparities across society.

Islam is a religion as well as a cultural practice that takes on a diversity of forms, some of them contradictory. This has always been the case, and it is becoming increasingly apparant in the modern world through migration, globalisation and the digitial media. The minor Islam: Religion and Society,…

Treatment and care for cancer patients is becoming increasingly advanced. For example, surgeons can now perform operations with much greater precision, and therapeutic vaccines are being developed to prompt the patient’s immune system to fight cancer. Work is also being done on better early diagnostics,…

Health is a wonderful gift, both for humans and for society. If we are able to prevent both physical and mental illnesses, we can spare a lot of suffering and fight rising health costs. Social scientists and physicians in Leiden are working closely together to conduct research on the human mental, behavioural…

The International Relations and Diplomacy programme gives you a unique combination: a thorough academic education in international relations and political science with practice-based training in international negotiation and diplomacy.

This book on Alba is edited by Maurits Ebben, Margriet Lacy-Bruijn and Rolof van Hövell tot Westerflier. Each of its fifteen chapters are dedicated to developing a new understanding of a sometimes misunderstood figure in European history.

How was the future United Nations Organization promoted to global publics during WW II?

Leiden researchers are helping develop safe COVID-19 vaccines.

The master's programme Comparative Criminal Justice at Leiden University focuses on criminology, criminal law and their mutual relationship. The programme offers an international comparative perspective, analysing criminal justice systems, legislation and policies in common law and civil law countri…

Tens of thousands of soldiers and civilians have died as a result of Russia’s invasion of Ukraine in February 2022 and the continuing armed conflict. Many forms of critical infrastructure have been destroyed. Much of this devastation has been caused by weapons that utilise forms of artificial intelligence…

The research group on Diplomacy and Global Affairs studies international diplomacy, international organisation, global, transnational, multi-level and comparative governance.

This paper examines cyber intelligence in the context of national and international security.

Read on these pages all about the history of Leiden University, the oldest university in the Netherlands. The Academia Lugduna Batava was founded in 1575 and its motto is: Libertatis Praesidium ('Bastion of Freedom').

Below you will find an overview of how researchers from the Faculty of Governance and Global Affairs and their research appear in the media, and you can read more about topics that concern the Faculty.