How do cognitive, motivational, and affective processes interact to select actions?

How do humans control their thoughts and actions, and what can high-field brain scanning reveal about the underlying processes?

This accessible textbook uses key documents embedded in a clear narrative to chart the post-Cold War rise and decline of transatlantic relations. It provides a novel interpretive framework by proposing that the three decades between 1989 and 2020 represent a distinct ‘transatlantic era’.

Surreal Geographies recovers a forgotten archive of Holocaust representation. Examining art, literature, and film produced from the immediate postwar period up to the present moment, Kathryn L. Brackney investigates changing portrayals of Jewish victims and survivors.

This study explores public leaders’ organizational learning orientation in the wake of a crisis. More precisely, we study the association between public leaders’ public service motivation and their learning orientation (instrumental versus political).

This open access book explores the role of continuity in political processes and practices during the Age of Revolutions.

This study employs a comparative perspective to identify generic and specific qualities of petitions and petitioning. It charts the chronological development of petitioning practices over centuries. The interdisciplinary approaches provide range of conceptual and methodological expertise for reade…

Why does the history of dogmatism deserve our attention? This open access book analyses uses of the term, following dogmatism from Victorian Britain to Cold War America, examining why it came to be regarded as a vice, and how understandings of its meaning have evolved.

This project investigates the professionalisation of university libraries in the nineteenth and early twentieth centuries, through the lens of the medieval manuscript holdings. Taking Leiden University Library as a starting point, it sheds light on the changing practices surrounding the conservation,…

A New Technology-Based Firm (NTBF) is a significant enabler of job creation and a driver of the economy through stimulating innovation.

Using EcoFab 2.0 devices and omics services at JGI, we will examine a plant growth promoting microbial community during interaction with different plant species.

How do mycobacteria subvert the defenses of host immune cells?

The relevance of intentionality to the interpretation of Aristotle was first suggested by Brentano in his Psychology from an Empirical Standpoint. Here we take our starting point from Brentano and investigate how Brentano’s concept of intentionality is rooted in Aristotle.

In this thesis integral points on affine del Pezzo surfaces are studied.

Promotor: Prof.dr. B. van de Water, Co-promotores: J.W. van der Laan, C.L.E. Siezen

Streptomyces present a valuable platform for natural product discovery. Lugdunomycin is a novel angucycline-derived polyketide from Streptomyces sp QL37, with unprecedented skeleton and antimicrobial activity.

This book focuses on transnationalism as a key concept to evaluate how Europe responds to cross-border security challenges.

This dissertation investigates how the efficiency of Computed Tomography (CT) can be improved for dynamic scientific and industrial applications.

The Great Rift Valley in Africa is a real treasure trove for discovering early human fossils. The fossils found in this part of Africa have determined our view of human evolution. But was the Great Rift Valley really the place where evolution took place or just a place where fossils are well preserved…

Joe Finnerty has co-edited the 2026 Symposium in the Human Rights Law Review entitled Legitimate Aims and Ulterior Purposes in International Human Rights Law: Comparative Perspectives.

Pectin is a plant cell wall polysaccharide made of mainly D-galacturonic acid (GA) subunits. The potency of the filamentous fungus Aspergillus niger to naturally secrete high amounts of pectinases to degrade pectin has been utilized for the industrial production of pectinases.

This article, by Sara Perlstein, explores how perceived social acceptability shapes whether people talk about risks, showing that risk perceptions and conversations are socially negotiated rather than purely individual.

This interdisciplinary study focuses on (trans)national ethnic and popular networks, combining historical-ethnographic and computational methods to understand the ‘workings’ of networked conflict interfering in the increasingly violent conflict in the Sahel (Africa) and beyond. The project focuses on…

In this research we have studied how teaching graphing formulas by hand (i.e. sketching a graph of a formula) could promote grade 11- and 12-students’ symbol sense.

How do humans, non-humans and their interactions and relations shape the home as ecological and social space?

When we read a text, we think we know who wrote it, but in the early modern period, manuscript production was often a collaborative or ‘socialised’ enterprise involving secretaries and scribes who physically wrote what the author dictated.

Since the start of the Green Office, several projects have been initiated to increase awareness amongst staff & students and to make the university more sustainable. Read all about our current projects here.

, Sandifortdreef 21, 2333 ZB, Leiden

Glycosidases are essential in fundamental biological processes and are responsible for the degradation of most (oligo)saccharides, glycolipids and glycoproteins.

The role of language in self-regulation and social behavior in children with an extra X chromosome

The use of Artificial Intelligence (AI) to optimize Magnetic Resonance Imaging (MRI),

Do you want to contribute to future proof health and care? Our healthcare faces major challenges such as staff shortages, ageing and increasing costs. During the two-year master programme Population Health Management you will become equipped to tackle these challenges to improve health. Knowledge from…

Do you want to contribute to future proof health and care? Our healthcare faces major challenges such as staff shortages, ageing and increasing costs. During the two-year master programme Population Health Management you will become equipped to tackle these challenges to improve health. Knowledge from…

The process of unification and the character of the union are the central topics of Magnanimous Dukes and Rising States. Robert Stein mirrors continuity and modernisation in Burgundian times with the bankruptcy of the former dynasties and the decline of feudal government. The powerful towns played an…

Lecture

This article by Danielle Goldwert, Sara Constantino, Jaroslaw Kantorowicz and colleagues presents one of the largest behavioral 'megastudies' to date, testing how different interventions can stimulate public, political and financial climate advocacy.

LLInC supports innovative and high-quality education both within Leiden University and in partnership with academic and social organisations.

This PhD project investigates how Russian state-aligned media frame the war in Ukraine for international audiences and how these frames travel across borders, being adopted, adapted, or challenged by foreign media and political actors.

Whether you have an idea, question, or general sense of curiosity, we’d love to hear from you.

A team of researchers at Leiden University is collecting information about the methods used by researchers in the field of public international law. The research team consists of Cecily Rose, Misha Plagis, Johanna Trittenbach, and Nicholas McGuire. The goal of this research project is to understand…

In December 2024, Cambridge University Press published the book Regulating Competition in the Digital Network Industry by Jasper van den Boom, Assistant Professor of EU competition law at the Europa Institute of Leiden University. The book introduces a new analytical framework for understanding competition…

Half a century ago, Martin Shapiro discovered that European constitutional scholarship was stuck at a stage of ‘constitutional law without politics’, presenting the EU ‘as a juristic idea; the written constitution as a sacred text; the professional commentary as a legal truth; the case law as the inevitable…

In this article, Seda Gürkan, Özlem Atikcan and George Christou examine how EU institutions responded to Turkey’s democratic decline between 2014 and 2024, analysing how conditionality was framed and applied by the European Commission, European Parliament and European Council.

Unlike the predominant and excessive focus on the problems of food production and food insecurity in Africa, this project views African culinary tradition as a vibrant and rich cultural heritage, intertwined with language use.

The Netherlands Institute in Turkey (NIT) conducts scholarly research and supports the academic study of Turkey through the ages. The institute is closely affiliated with University’s Faculty of Humanities. Its facilities are available to students and staff of all universities in the Netherlands.

Our program specializes in creative exploration and a broad understanding of scientific research and technology. It prepares students for a career involving creative and critical thinking. Our alumni have a broad choice of career prospects: they hold positions ranging from academic researcher to creative…

Promotores: Prof.dr. E.F. van Dishoeck, Prof.dr. C.P. Dullemond

How do descendants of survivors of violent conflict anticipate and respond to potential, future disaster – both potential new conflict and natural hazards?

We know that armed conflict breeds conflict. We also know the political, economic and demographic factors that inform this repetition of conflict. But we do not understand why accumulated conflict risk factors sometimes do and other times do not pay out in more violence. What if we go beyond macro structural…