Astronomers want to understand the Universe, from the Big Bang to the present day, and what the future will hold. In Leiden they focus on two key questions: ‘How did stars and planets originate’ and ‘How were galaxies and black holes formed in the young Universe?’ A new generation of telescopes – just…

At the largest scales, two ingredients dictate the distribution of matter in the Universe. The first is dark matter, acting as an invisible scaffolding held together by gravitational forces.

The international legal order is in a process of transformation. But how transforms globalization the international legal order? This research programme provides a clearer framework to analyze this..

This research project addresses the ethical challenges and legal gaps regarding the operations of MNCs in conflict zones.

On the 1st of December Marcela A. Garcia Probert successfully defended a doctoral thesis and graduated.

Dr. Cátia Antunes and prof. Jos Gommans both edited and contributed to this interesting book, that consists of articles that offers a new insight into the macro and micro worlds of the global Dutchman in Asia.

Vietnam’s record of expanding access to education, and especially its performance on international assessments such as PISA, has raised questions about what Vietnam got right, how, and why and what insights Vietnam’s experiences might offer for efforts at improving the performance of education systems…

Andrea Giolai defended his thesis on 3 May 2017.

This thesis represents a comprehensive investigation into the control of cancer stemness and metastatic initiation using a combination of advanced zebrafish xenograft models and in vitro assays.

This thesis focus on the interaction between M dwarf stellar winds and Galactic cosmic rays and the possible effects on the habitability of exoplanets.

Promotor: Prof.dr. H. J. A. Röttgering, Co-Promotor: Dr. M. Haverkorn

What is the current relevance of the ethics of counterterrorism and what is the added value of ethics support within the practice of counterterrorism?

The ongoing increase in antimicrobial resistance combined with the low discovery of novel antibiotics is a serious threat to our health care.

How did our universe come into being? Are there any other planets that support life? Read all about it in our new research dossier ‘Exploring the universe’.

Exploring the mechanism of targeted nanoparticle-mediated drug delivery using the zebrafish model

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

This doctoral thesis is an effort to understand how lipid phase-separation induced by diacylglycerol analogues in lipid-based nanoparticles affects their in vivo behavior, leading to specific nanoparticle-protein communications and selective cell targeting.

Nowadays, it is well known that hydrogen and helium (and small traces of lithium and beryllium) were created shortly after the Big Bang, while the heavier elements are created in the cores of stars at different evolutionary stages. When these stars explode as supernovae, they expel metals synthesised…

Streptomyces are prolific producers of enzymes and secondary metabolites, including more than 50% of all clinical antibiotics. This makes them highly attractive for medical, biotechnological, and industrial purposes.

BACKGROUND: Explant human skin equivalents (Ex-HSEs) can be generated by placing a 4mm skin biopsy onto a dermal equivalent. The keratinocytes migrate from the biopsy onto the dermal equivalent, differentiate and form the epidermis of 1(st) generation Ex-HSEs. This is especially suitable for the expansion…

Drawing is one of the most unique human behaviours. Like language, drawing is a mode of communication and a cognitive tool that from an early age allows us to interact with others. Is the early development of drawing skill influenced by the social environment? If so, how?

Thesis focused on uncovering the underlying mechanisms of the lysosomal storage disorders Gaucher's disease using chemical tools, biochemical assays and lipidomics.

The project explores the impact of the clash between defenders of a rules-based order and international law on global governance and the future of legal systems.

The project IMAGINARM (Université Lyon 2) is looking for a PhD candidate to conduct research on illuminated manuscripts and their relation to Arthurian heraldic. The project is supervised by Francesco Montorsi (Université Lyon 2) and Martine Meuwese (Utrecht). Deadline for applications: May 31.

The University of Fribourg has a vacancy for both a "professeur" and a "maître d'enseignement et de recherche" in Medieval History. Deadline for application: 30 June 2021.

The University of Lille offers four postdoc positions in the ERC Advanced Grant 2020 AGRELITA Project, « The reception of ancient Greece in pre-modern French literature and illustrations of manuscripts and printed books (1320-1550): how invented memories shaped the identity of European communities »,…

Charisma K. Lepcha (PI, Sikkim University), Pradyut Guha (co-PI, Sikkim University), Rajib Sutradhar (co-PI, Christ University Bangalore) and Erik de Maaker (Leiden University) have been awarded a two-year grant of USD 18.000 to conduct research on the impact of ‘green farming’ on the sensitive mountain…

There is an opening for a postdoc in the ANR-project led by Claire Angotti (Augustin dans les bibliothèques de l'Université de Paris). Start date: 1 January 2022.

The University of Lausanne is hiring 2 PhD's in the domain of art history and French literature. Projects have a specific focus on North West Europe. Candidates should apply before May 1st, 2024.

Leiden houses the oldest university in the Netherlands, 13 museums, and 23 kilometres of canals with 88 bridges.

This is an Erasmus+ International Credit Mobility project of the Faculty of Humanities with Université Mohamed VI Polytechnique.

We are glad to present our new research report on Exploring the Frontiers of International Law (EFIL). International Law has traditionally been one of the flagship areas of the Leiden Law School. The report provides a taste of our rich research agenda in international law.

This dissertation consists of two parts, with the common theme

Promotor: Prof.dr. C.U. Keller, Co-promotor: Dr. ir. Frans Snik

Update : August 2017 Dr Harco Willems

Archaeobotanic research by prof. dr. C. Bakels and students on agriculture.

For centuries astronomers studied the Universe by collecting light. Nowadays, we are living in times of great technological advancements, which allow us to explore our Universe in a new way - though gravitational wave radiation.

The delegation from Leiden University Medical Center, led by Dean Marlies Reinders, visited Surabaya, Makassar, and Jakarta in October 2025 to explore opportunities for research and academic cooperation. This visit marks an important step in strengthening international ties and fostering long-term collaboration…

This thesis mainly focuses on multimodal understanding and Visual Question Answering (VQA) via deep learning methods. For technical contributions, this thesis first focuses on improving multimodal fusion schemes via multi-stage vision-language interactions.

This thesis mainly focuses on cross-modal retrieval and single-modal image retrieval via deep learning methods, i.e. by using deep convolutional neural networks.

This volume is the outcome of collaborative European research among archaeologists, archaeobotanists, ethnographers, historians and agronomists, and frequently used experiments in archaeology.

Telling sensationalised stories, exaggerating benefits and understating the risks: creating ‘hype’ about something doesn't sound like something a responsible scientist would indulge in. Or could we also use hype in a ‘good way'? What could we achieve by opening up quantum futures for wider discussions,…

Material Culture, Settlements, and Landscapes from the Mediterranean to Western Asia

We are living in an information era where the amount of image and video data increases exponentially.

In this thesis, I investigated the neurogenetic properties of Neotropical bat species. Bats represent the second largest mammalian order (Chiroptera) in the world, with Neotropical bats constituting about 13% of the total number of bat species.

Considering the ways in which the ‘global turn’ is changing the theory and practice of historical disciplines, Explorations in History and Globalization engages with the concept and methodology of globalization, challenging traditional divisions of space and time to offer a range of perspectives on…

In this thesis, we examine various systems through the lens of several numerical methods.

The objective of this study was to investigate the expression and function of GRHL2 in different breast cancer subtypes.