How do sign languages change and spread over time, and how is this influenced by their transmission history?

Which features characterize speakers’ voices, and how are these features determined by what a speaker is saying?

The history of sign languages of deaf people is severely understudied. The historical linguistics of sign languages offers a fundamentally new perspective on the history of human languages. This project addresses the dearth of knowledge about historical sign language linguistics through a large-scale…

Leiden University was founded in 1575 and is one of Europe’s leading international research universities. It has seven faculties in the arts, humanities and sciences, spread over locations in Leiden and The Hague. The University has over 6,700 staff members and 29,520 students. The motto of the University…

On the 28th of September Go Hirasawa successfully defended a doctoral thesis and graduated.

At Leiden University College (LUC), engagement with international societal partners occurs through research, education, and internships, fostering mutually beneficial collaborations with NGOs, public service institutions, and international counterparts.

Microbial rhodopsins are photosensitive pigments implemented in the growth and adaptation of a large population of microorganisms.

Career prospects are very important these days. The programme European and International Human Rights law provides you knowledge in human rights settings.

Dutch Studies is a unique bachelor’s programme in which you will quickly acquire fluency in spoken and written Dutch at a high academic level, at the same time gaining deep understanding of the culture and history of the Netherlands.

In our HANDS!Lab for Sign Languages and Deaf Studies, we run projects pertaining to sign language linguistics with a focus on Africa. In addition, we are running projects on sign language teaching, tactile signing, deaf people’s experiences with the legal system, and deaf history.

How does the human mind work when it comes to language? Why are some speeches totally persuasive, and others less so? How do children acquire language so effortlessly? How do languages develop over the course of time? How many different speech sounds can humans make? During your BA in Linguistics you…

We develop open micro cavities to trap light in small volumes and thereby increase the interaction with intra-cavity emitters. Important aspects in this development are the optical penetration in the mirrors, coupling between optical modes, and scattering and clipping losses.

Political Islam is not new to the Middle East, but the appearance of ISIS has stretched the phenomenon to the extreme.

Was the progressive colonial civil servant the precursor of the postcolonial development-aid worker?

Ongoing microwear analysis of the flint artefacts from the Funnelbeaker period suggests that flint had a pivotal role in the representation and structuration of the cosmological order of Funnelbeaker society.

The compulsory reading list is infamous among secondary school students, and for all the wrong reasons. This prompted the Faculty of Humanities and the Onderwijsnetwerk Zuid-Holland (South Holland Education Network) to launch the Alternative Reading List Award, in search of books that motivate young…

Postdoc and linguist Evelyn Bosma receives the Keetje Hodshon Prize for her dissertation. For her research on the multilingualism of Frisian children, Bosma previously won the Klokhuis Science Prize and the Campus Fryslân Science Prize.

Fighting for the faith, caring for the sick, and praying for the soul of their benefactors were the main tasks of the military orders, who since the time of the crusades were well represented in the Netherlands in the Middle Ages, including the Frisian lands. Especially the Hospitallers and the Teutonic…

The Pioneer Years of the National Museum of Antiquities in Leiden, 1818-1840

The main goal of this thesis is to achieve advanced control of binding properties in bis-pyrrolic and macrocyclic pyrrolic receptors by light.

Historical geo data are gaining in importance. Provided that they are exactly geo referenced, they can be stored into a GIS and thus be combined with all kinds of maps (topographical, pedological, etc.) and datasets. This makes it possible to analyze historical developments in space and time on a detailed…

On 3 October, Leiden University was holding a Science Fair packed with stalls showcasing discoveries and scientific games.

This is the application procedure for the physics summer school of Leiden University. It is part of the Leiden Institute of Physics (LION). Interested bachelor (BSc) students can apply through the online form, where they need to upload several documents. The application deadline is 25 May 2025.

Lecture

PhD defence

One of the recurring points of discussion within the Criminal Justice research programme is the question of what behaviour should or should not fall within the scope of criminal law. This research theme is examined from a legal-dogmatic and social-scientific perspective.

Inaugural lecture

Would you like to do something for the victims of the war in Ukraine? Several actions have been set up to help the people in Ukraine. Read below what you can do.

What is the effect of pesticides, fertilizers or plastic on water quality? And how do wind and rain affect the data? These are just some of the things that Leiden environmental scientists study in the 32 ditches of the Living Lab.

European product safety law is one of the focal points of internal market legislation.

Leiden University and the Leiden Bio Science Park can make a significant contribution to the earning capacity of the Netherlands. This is the finding of the National Investment Agenda presented today.

Patterned detectors are an existing technology that can be found in almost all color cameras.

Promotor: J. A. Bouwstra

National parochialism is the tendency to cooperate more with ingroup than outgroup members. Angelo Romano, Matthias Sutter, James Liu, Toshio Yamagishi & Daniel Balliet studied national parochialism across different nations and conclude in their publication in Nature Communications that it is a ubiquitous…

Behavioral and neural mechanisms underlying risky decision-making in adolescents

This volume considers the military architecture and its impact on local communities in Rome's eastern frontier, which stretched from the north-east shore of the Black Sea to the Red Sea.

This thesis is a (biased) journey through very different topics in astrophysics: quasars and new populations of active galactic nuclei, gravitational waves from merging black holes, and protoplanetary discs around young stars.

In this thesis we classify the pairs (p,G), where p is a prime number and G is a finite p-group possessing an intense automorphism, i.e. an automorphism that sends each subgroup of G to a G-conjugate, that is non-trivial and whose order is coprime to p.

Promotores: G.W. Canters, T.J. Aartsma

This thesis focuses on important life history traits and their trade-offs using two hexapod models. Particularly, the trade-off between immune defense and embryonic developmental speed is a central theme of this study.

Leiden Journal of Pottery Studies 22, 2006

The Leiden Center for the Study of Ancient Religions (L*CeSAR) facilitates the integration of scholarly expertise and resources, promoting interdisciplinary collaboration and intellectual exchange among researchers of ancient religions, both within Leiden University and in the broader academic commu…

How are the epidermal lipid pathways involved in health and disease.

The main goal of the research described in this thesis was the development of new photoactivated chemotherapy (PACT) ruthenium(II) complexes bearing a non-toxic photolabile ligand.

PhD at Molecular Biology and Biochemistry Department, University of Malaga - Spain

Since my master's thesis on the landed property of the Frisian monasteries in the Middle Ages I am highly interested in the do ut des-aspects of the relation between religious houses and the lay world. Key words here are: property, power, patronage and the role of religious institutions in the 'salvation…