Promotores: Prof.dr. G.R. de Snoo & Dr. R. Heijungs

The Western Mediterranean is a key region to understand human dispersal events within and out of the African continent as well as for the eventual replacement of Neanderthals by anatomically modern humans during the Pleistocene. Central to any conclusive interpretation of archaeological and palaeoclimatic…

This dissertation the role of the English dissenting minister Joseph Priestley (1733-1804) as a grammarian is studied.

In this thesis the combinatorial use of bioorthogonal labelling and Electron Microscopy (EM)-based imaging techniques is explored to enable observations of specific molecular targets in their ultrastructural context within the cell.

Promotor: W.T. de Groot

The application of nanomaterials in industrial processes and consumer products provides many societal benefits, but can also lead to the release of nanomaterials into the environment. The work in this dissertation aims to provide insights into the potential environmental impacts that may follow from…

The edited volume 'Arabic in context: celebrating 400 years of Arabic at Leiden University' edited by Ahmad Al-Jallad is out. The volume contains the contributions to the 2013 conference with the same title, held at Leiden University and was published as part of Brill's the Studies in Semitics Language…

Which challenges exist for girls to effectuate their right to education and specifically getting access to education?

The Persian Empire (539-330 BCE) was the first world empire in history. At its height, it united a territory stretching from present-day India to Libya - and it would take 2,000 years before significantly larger empires emerged in early modern Eurasia. This territorial sweep is both a source of fascination…

Does the political context (e.g., democracy vs. authoritarianism) influence what makes people perceive authorities as legitimate?

Als gevolg van de grote technologische vooruitgang in de gezondheidszorg worden in toenemende mate gegevens verzameld tijdens de uitvoering van klinische onderzoeken.

Voor zowel archeologen, paleontologen en geologen als vrijwilligers in de archeologie en paleontologie is het geen verrassing meer dat op de stranden van de Nederlandse kust fraaie vondsten gedaan kunnen worden. Vele artikelen, boeken, tentoonstellingen, congressen, lezingen, ‘zoekdagen’, krantenberichten,…

The ability to collect and interpret huge quantities of data has become indispensable to society and academia. Leiden University is a knowledge and expertise centre for data science that places the emphasis on interdisciplinary collaboration and innovation.

From where litter ends up to which languages are spoken in Leiden and The Hague: over 50 interesting, surprising, complex and entertaining questions were sent in for the Citizen Science project to mark our 444th anniversary. Not one but two Citizen Science projects will be starting this year in Leiden…

On this page you find all the ways through which the Institute of Psychology aims to foster Open Science.

Citizen science has recently become a widely used term, but what does it mean exactly? How does citizen science compare to crowdsourcing? And where does community archaeology stand in this discussion?

Death’s Social and Material Meaning beyond the Human is edited by Jesse D. Peterson, Natashe Lemos Dekker and Philip R. Olson

Irene Moretti published the article Kin Enough in Social Analysis, The International Journal of Anthropology.

Mahmood Kooria shows in his dissertation that Islam often adapts to the regional context. PhD defense 14 December.

The majority of scientists, from archaeologists through to zoologists, collect enormous volumes of data. Their massive databases contain large amounts of information which is difficult for humans to filter. With a solid grounding in statistics and computer science, we can develop algorithms for analyzing…

The Institute of Political Science is a vibrant department with nearly 70 academic staff in Leiden and nearby The Hague.

Are you thinking about studying Biomedical Sciences? Learn more and watch a short promo video.

The Department of Archaeological Sciences seeks to achieve the highest standards of excellence in science-driven education and archaeological research across the globe and across all periods.

Are you thinking about studying Political Science? Watch the introduction video’s and learn more!

The majority of scientists, from archaeologists through to zoologists, collect huge volumes of data. Their massive databases contain large amounts of information which is difficult for humans to filter. With a solid grounding in statistics, we can develop algorithms for analysing and identifying patterns…

This book offers a detailed analysis of social policy in Ecuador, covering its evolution over the past four decades. It examines how social relations and institutional frameworks have influenced concepts of well-being, the implemented policies, and the outcomes achieved.

BE-OPEN is a structural project funded under the Erasmus+ Capacity Building in Higher Education action. The project is coordinated by the University of Novi Sad, Serbia. The main objective of the project is to develop conditions for the implementation of the core principles of Open Science at universities…

Are you thinking about studying Computer Science? Learn more and watch the videos. Note: As of September 2025 you can also combine this master programme with the Business Studies specialisation.

Leiden University will be recording a brand-new series of podcasts in 2019: Science Shots. Our top scientists will talk about their research in less than 15 minutes. Tip: something to enjoy on the train journey between Leiden and The Hague, our two University cities!

A study of early medieval reopened graves

How do psychology, culture, politics, and upbringing influence our lives in a rapidly changing world? What is the role of education and development, and how do cultural differences shape our society? In the minor "Introduction to Social Sciences: Human Behavior in a Changing World" (30 EC), you will…

PhD candidates carry out a programme of independent research and additional (limited) course work, culminating in production of a PhD thesis in typically 4 years.

The main aim of this dissertation was to provide insight into possible subtle forms of bias in youth socialization by various socializing agents in the Netherlands, and exploring new ways to document bias. Additionally, it addresses the importance of using sound statistical methods for calculating effect…

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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.

The master’s specialisation Bio-Pharmaceutical Sciences and Science Communication & Society at Leiden University is a two-year programme which combines research training in chemistry with one in techniques of communication.

To answer questions that look beyond individual entities, network science studies the interactions taking place in complex systems. These complex systems can often have temporal information on when an interaction occurs.

With the emergence of new methods and technologies such as improved DNA analysis and big data, archaeological research has changed radically in recent decades. The researchers from the Department of Archaeological Sciences at the Faculty of Archaeology use new scientific knowledge to answer fundamental…

At the Institute of Political Science we value our alumni. We can learn from you, and would like to contribute to your further development. And, of course, we want to lend a hand in connecting ‘our’ political scientists all over the world.

PhD candidates carry out a programme of independent research and additional (limited) course work, culminating in production of a PhD thesis in typically 4 years.

PhD candidates carry out a programme of independent research, leading to a PhD thesis in typically 4 years.

This study, Calypso, The Trinidadian Experience, has sought to establish links between calypso music and the construction and maintenance of identities, and to locate the genre as a mechanism (or as part of a broader mechanism) that has exerted on-going social influence within Trinidadian society…

Gorlaeus Gebouw, Einsteinweg 55, 2333 CC, Leiden

In films kunnen de meest wonderlijke acties plaatsvinden. Maar zijn die acties in de 'echte' wereld ook mogelijk? En in hoeverre houden filmmakers ons voor de gek? Tijdens het Leiden International Film Festival komen film en wetenschap samen.

The two-year master’s programme in Computer Science at Leiden University offers seven specialisations ranging from AI to Bioinformatics and Data Science. The programme combines excellent theoretical teaching with possibilities for applied work with industrial relevance.

Are you a researcher eager to share your work with a broader audience? Do you want to develop your science communication skills and learn how to engage effectively with society? Then join our Summer School in Science Communication in Leiden! Jointly organized by the Faculties of Science and Social…

Politics is about the authorised allocation of values: who gets what, when and how much? This question is relevant at many different levels, in many different places and in very different ways.