The main focus of this thesis is the behaviour of two-dimensional materials, namely (anti)-ferromagnetic materials in the first two chapters, which show topological phases, and energetic square ice in the third and fourth chapter.

In modern information systems, a large number of different components are often active simultaneously. This phenomenon - known as concurrency - underlies not only the functioning of computer systems but of any system in which many processes take place at the same time.

The parabolic Anderson model (PAM), which is the Cauchy problem for the heat equation with random potential. The PAM is a mathematical model that describes how mass (i.e. matter or energy) flows in a medium in the presence of a field of sources and sinks.

Leiden University research institutes based in Leiden and The Hague.

How does the social infrastructure affect administrative burdens associated with digital government services? The paper 'Administrative burden in digital public service delivery: The social infrastructure of library programs for e-inclusion' published in the Review of Policy Research by Sarah Giest…

Are you interested in taking up an extra challenge during your master’s programme? Do you want to develop your personal leadership style?

Leiden University offers you several services related to career orientation and job application skills.

Leiden University researchers and their collaborators report the development of new research frameworks that use day-to-day smartphone behavior gathered from a large sample of healthy people to help understand aging, and how aging alters with epilepsy and stroke. These reports occupy two back-to-back…

In the future, physicians may be able to identify dementia much earlier than they can today because a computer algorithm will be able to predict from brain scans how our memory is going to develop.

Hybrid zones occur where two species meet and produce offspring (hybrids). Typically, hybrids show a considerable reduction in fitness. In this thesis two hybrid zones are treated.

The main research objective is to map the cities of Roman Asia Minor in terms of location, size, urban amenities and juridical status, with the specific aim to understand the reasons how this urban settlement pattern arose.

Grammatical gender is famously the most puzzling of the grammatical categories. We have a solid typology of gender systems, yet exciting and unexpected patterns keep turning up which defy easy classification and straightforward analysis. Some of these question, stretch or threaten to cross the outer…

How is the development of physiological responses to social evaluation in adolescence affected by other normative developments, such as pubertal, socio-cognitive and psychosocial development? Are social anxiety and public speaking anxiety associated with characteristic patterns of stress responses…

Radiation can be used to determine the isotope ratio of a skeleton. This provides information about where our ancestors lived and what they consumed. Dr Andrea Waters has developed a revolutionary method that can trace patterns of consumption from tens of thousands of years ago.

What is the population size/structure and distribution of tiger and leopard inside the Bardia National Park (BNP) compared with the population outside? What is the movement and home range and conflict pattern in time and space of tigers and leopards inside the BNP compared with outside? What constitutes…

What is the role of auxin in the initiation and process of somatic embryogenesis?

Research on the global field of museums, heritage, commemoration, consumption and material culture

Joost Batenburg is a mathematician and computer scientist who works to build bridges to other disciplines. He hopes to bring intelligent software to fields where it can make a difference. Conversely, he also seeks connections to the disciplines that are needed to make AI a success.

Browse the latest articles and issues of Inter-Section.

Researchers using remote sensing technologies have characterized pre-Columbian regularly-shaped earthworks in forests in Central America and the Amazon. In tropical forested mountains in South America, two challenges arise when identifying archaeological sites through remote sensing. Firstly, sites…

Opening

At Leiden University, our Research Group is committed to advancing knowledge and understanding in the field of violence and violence prevention through interdisciplinary scholarship and innovative methodologies. Our faculty members are leading experts in their respective fields, bringing diverse perspectives…

Rodrigo Ochigame’s project explores how AI redefines scientific evidence, aiming to help scientists critically navigate these transformations with the Veni grant.

Palaeography of an ancient nomadic writing culture

Promotor: Prof.dr. G.R. de Snoo

Madeleine Hosli, Professor of International Relations at Leiden University, together with two other authors, wrote a chapter in Group Politics in UN Multilateralism. This chapter assesses the composition and functioning of the African Union (AU) within the United Nations.

Promotores: H.A. Udo De Haes, P.M. Brakefield

On 7 September 2023 Didem Durak Akser successfully defended a doctoral thesis and graduated.

This thesis investigates the processing of words written in Japanese kanji and Chinese hànzì, i.e. logographic scripts.

The focus of our theoretical research is understanding the behaviour of soft condensed matter, physical matter which is deformed or structurally altered by thermal fluctuations or small stresses.

Jelena Vićić and Richard Harknett offer an analytical construct to better understand the mechanism by which cyber-enabled influence operations work

In a typical glycosylation reaction, a donor is activated to form a (variety of) electrophilic species which can react with a nucleophilic acceptor, following a reaction mechanism having both SN1 and SN2 character.

Data Science

On February 19th, Arum Perwitasari succesfully defended her doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Arum on this great result.

It is widely known that conflict parties engage in ceasefires for a variety of reasons, but how do these reasons relate to the military and political aspirations of conflict party leaders?

This publication aims at the analysis of the performance of a corpus of Fongbe stories that I collected in three villages in the south of Benin in 1976 and 1977. The corpus consists of 37 stories (57.000 words). The stories aim at children’s education.

On the 6th of November, Virginia Beavon Ham successfully defended her doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Virginia on this achievement.

Does Artifical Light at Night (ALAN) disrupt seasonal physiological and behavioral patterns in migrating freshwater fish?

How many men and women die per year at the hands of others? What are the motives behind these killings? Are there as many homicides today as years ago? How can we explain the rise and fall of homicides over time? And: What is the influence of (early) childhood and adolescence on the likelihood to commit…

Promotor: H.J. van den Herik, B.R. Katzy, Co-promotor: K. Sailer

All living creatures have to cope with environmental demands and threats that challenge their physical or emotional homeostasis.

Promotor: Prof.dr. E.F. Smets

The Faculty of Governance and Global Affairs

Promotores: H.A. Udo de Haes, H.H.T. Prins, Co-promotor: H.H. de Iongh

Business Process Model and Notation (BPMN) has become the standard for business processes diagrams.

The historical archaeology of the Port of Sandy Point and its anchorage, St. Kitts, West Indies