The master's specialisation Social and Organisational Psychology consists of three main parts: the mandatory and elective courses, a thesis and an internship.

In the African Studies BA programme you will obtain in-depth knowledge about Africa and the specific theme of your choice. At the same time, you will develop valuable academic and digital competences, as well as personal skills.

Students following this programme can choose one specialisation. This can be either with a focus on psychology in everyday life or on its application in mental health care. Each specialisation consists of mandatory courses, electives a master’s thesis and an internship.

Study information

This inaugural lecture discusses the question: How to cooperate in the digital era?

A collection of newly written chapters by various specialists from different disciplines (with a background in philosophy) on the subject of free will as it is discussed in their (inter)disciplinary field.

The available tools for academic literature search return a list of ranked documents, which might not be ideal for some tasks. To facilitate these tasks, I am creating a visual representation of the academic search space where the user can browse academic topics.

Light obscuration (LO) is the current standard technique for subvisible particle analysis in the quality control of parenterally administered drugs, including therapeutic proteins.

Like any language, the natural sign languages of deaf communities differ from each other in their grammars and lexicons. A growing number of studies indicates that sign languages make use of the gestures of hearing speakers to build linguistic structure. This implies that variation and similarities…

Does the δ-machine have higher accuracy than the other feature-based classifiers in some conditions?

n this thesis we study curves. In the first half, we study moduli spaces of curves and Gromov-Witten invariants, certain kinds of curves counts. We employ logarithmic geometry for this.

This thesis describes how different colours of light affect various aspects of the growth and development of Arabidopsis and tomato plants⁠.

Large-scale excavations at Neumark-Nord 2 (Germany), a very rich Middle Palaeolithic site with excellent preservation of organic (faunal and floral) remains and lithics in fine-grained lake deposits, dating to about 125,000 years ago.

How did the imperial administration of justice function during the reign of the Severans?

This book presents the transcriptions and annotated translations of fifteen key historical documents concerning the Tapuia indigenous people written just before and during the Dutch occupation of northeastern Brazil.

When the 'New World' was really new, the Frankfurt publisher and engraver Theodore de Bry drew inspiration from some of history’s greatest explorers to record its wonders.

Promotor: A. Achúcarro, Co-Promotor: G.A. Palma

LUGO’s monthly Green Drinks are open to students and staff of Leiden University to connect with the LUGO community of staff, board members, committee members, and volunteers. Share your ideas for a sustainability project, connect with like-minded students and staff, and have a Green Drink on us! Don’t…

Depending on the research area you are charged with bench fees or not.

The aim of this thesis is to present novel techniques for proving cryptographic schemes secure against quantum adversaries. Most results are within the context of an idealized model called the ‘quantum random-oracle model’.

We show that Kirchhoff ’s law of conservation holds for non-commutative graph flows if and only if the graph is planar. We generalize the theory of (Euclidean) lattices to infinite dimension and consider the ring of algebraic integers as such a lattice.

In online games conflicts between players may arise. Novin, Bos, Stevenson and Rieffe investigated factors that may explain why some adolescents react more angrily than others in this type of situation. In their realistically designed gaming environment, the (pre-programmed) fellow player suddenly started…

In this thesis, we have used numerical approaches to study the effects of translational symmetry breaking on strange metallic systems as realised by the holographic duality⁠.

We use laboratory animals to address research questions, but only when there is no alternative and the question cannot be answered in any other way. Read here why we conduct animals experiments.

This thesis describes the design, synthesis, and immunological evaluation of varying (neo)antigenic peptide conjugates containing either a TLR2 or a TLR7 agonist.

The Cell Observatory is run by several people some of which have multiple roles. To identify whom to contact for what issue please refer to the list below

There are a number of different people in the Faculty of Humanities who deal with aspects of diversity and inclusion. This web page has been developed to make it easier to find the contact details for the right person for you.

This book brings together a collection of emergent research that moves the debate on desistance beyond a general consideration of individual and social structural influences.

The currently available in vitro generated human skin equivalents resemble the human skin in many aspects. However, some essential barrier characteristics do not fully mimic the native barrier. Consequently, the human skin equivalents cannot be used for screening of drugs for skin penetration.

This thesis is about cosmological inflation and its relation to observations.

Leiden University offers more than 78 master's programmes in various fields taught in English. Tuition fees for master programmes range from 15,000 - 25,000 euros / year depending on the chosen study programme.

Acknowledging the work and effort of Leiden University staff is one step closer to having a more sustainable University.

Phonology is the study of speech sounds within and across languages. It touches topics such as speech sound variation, speech sound combinations and acquisition.

On 15 February 2023 Uzume Wijnsma successfully defended a doctoral thesis and graduated.

In the series 'PhD in the Picture', our PhD students tell us all about their research: what are their findings? How did they do it, and how does their research touch upon hot topics in our society today?

Nobody is better qualified to tell you what it is like to work at Leiden University than the employees themselves. Watch the videos and meet your future colleagues. They will be happy to share their experiences with you.

Today, humanity produces sufficient calories, in theory, to feed the 7.7 billion people on the planet: the amount of food produced per person on the planet has gone up more than 40% since the 1960s. Yet, ironically, the prevalence of undernourishment – which had been declining for decades – has started…

In this minor programme, students will become familiar with the nature and scope of violence; the ways in which it impacts public order, and the ways in which society can respond to and, ultimately, prevent violence.

Make more fluid: In condensed matter systems, electrons can acquire unusual properties from their interaction with the atomic lattice.

Towards Health and Resilience in Volatile Environments - People differ in how they are impacted by and respond to stressful experiences. Why is that?

The largest structures in the Universe are clusters of galaxies. Each can contain hundreds to thousands of galaxies.

It is difficult to deny the value and importance of human rights, and yet their application in the context of climate change is increasingly contested. While some argue that it is difficult to establish the violation of human rights by climate change processes, others contend that human rights are anthropocentric,…

The Leiden Institute of Advance Computer Science (LIACS) in collaboration with the Institute of Security and Global Affairs (ISGA) have developed the minor Cyber Security to provide students with a mixture of technical and governance knowledge to set them on a path towards understanding cyberspace and…

Does hegemony—legitimated rule by dominant power—have a role in ordering world politics of the twenty-first century? If so, what form does that hegemony take: does it lie with a leading state or with some other force? How does contemporary world hegemony operate: what tools does it use and what outcomes…

Take a view on the slides of the presentation and read what the event of Sustainable Travel was about.

Based on interviews with feminist Instagram users, this article studies emergent feminist visibilities on Instagram through the concept of filtering.