The integrity and reliability of academic research are of fundamental importance to the University. All parties, both within the University and outside, must be able to have confidence that our research is conducted in a scrupulous, fair, verifiable, impartial and independent manner.

The integrity and reliability of academic research are of fundamental importance to the university.

All LIAS members and visitors are kindly requested to familiarize themselves with the information provided below, to the level of detail they feel is appropriate to their situation. This information overlaps in part with the University’s web pages on scientific integrity.

The integrity and reliability of academic research are of fundamental importance to the University. All parties, both within the University and outside, must be able to have confidence that our research is conducted in a scrupulous, fair, verifiable, impartial and independent manner. To make sure PhD…

The integrity and reliability of academic research are of fundamental importance to the University. All parties, both within the University and outside, must be able to have confidence that our research is conducted in a scrupulous, fair, verifiable, impartial and independent manner. To make sure you…

Scientific integrity is an essential element in the PhD trajectory and is addressed in several different settings.

The mission of Printeger is to enhance research integrity by promoting a research culture in which integrity is part and parcel of what it means to do excellent research, and not just an external and restrictive control system.

This research cluster is a part of the Institute of Political Science’s research programme ‘Institutions, Decisions and Collective Behaviour’.

The Faculty of Science stands for research of high quality. An honest and reliable practice of science is important to us.

Leiden University stands for high quality research. Integrity and reliability in the way we conduct research are core beliefs in Leiden.

How should European financial law best integrate considering the interaction of the relevant legal systems?

The aim of the Standard Operating Procedures for Research Integrity (SOPs4RI) project was to promote excellent research and a strong research integrity culture that aligns with the principles and norms of the ‘European Code of Conduct for Research Integrity’, and to counter research misconduct. The…

Integration of research and teaching is the core of Leiden University’s teaching in all programmes. The university stimulates students’ research-oriented attitudes.

The database research community has made tremendous strides in developing powerful database engines that allow for efficient analytical query processing.

Research on this theme concerns the legitimacy and effectiveness of Europe’s institutional order in the face of public alienation and normative contestation.

Promotor: W. T. F. den Hollander, F. H. J. Redig

Intensive public debates have erupted about integration of immigrants in Europe. The influx of refugees from the middle east during the summer and autumn of 2015, the increasing visibility of immigrants throughout European societies, but also the widely publicized occurrences on New Year’s eve in Cologne…

Corruption, integrity (or a lack thereof…) and public values are near omnipresent elements in public administration and politics of all times. Cases of corrupt public officials and politicians continuously emerge. Strangely enough, however, it often remains unknown what actually occurred, how something…

Towards a framework that integrates content-based and process-based accounts of mathematical thinking

Research Network Institute for History 2026-2029.

This special issue of the Journal of European Policy presents results from the research on the European Union Enlargement and its Integration Capacity. The Journal of European Public Policy is one of the leading journals in this field.

How can a CLIL approach, with a focus on disciplinary literacies, improve the teaching of the LLA programme’s literary component in senior bilingual education (TTO)?

The database is created by the Centre for Public Values and Ethics of the Institute of Public Administration. Its aim is to collect and describe scandals involving (supposed) corruption and lacking integrity of public officials in the Netherlands between 1945 and the present.

The Hazelhoff Centre for Financial Law research programme for 2020-2023 centres around the integrity of financial markets during times of crisis and possible regulation to secure it.

Pathways of toxicity

The quest for Trustworthy AI is high on both the political and the research agenda, and it actually constitutes TAILOR’s first research objective (H1) of developing the foundations for Trustworthy AI. It is concerned with designing and developing AI systems that incorporate the safeguards that make…

This book uses a biographical approach to explore the Labour Party's relationship with European integration, moving beyond simple 'pro' or 'anti' labels to showcase the complexity of views that have existed.

In this article, Friso Selten and Bram Klievink explore how public organisations strategically manage the adoption of AI.

This thesis focuses on developing wafer-scale two-dimensional (2D) materials by combining synthesis, transfer, characterization, and device integration of graphene, hexagonal boron nitride (h-BN), and BN-doped amorphous carbon.

How is generative AI changing the way we learn, communicate, and make sense of the world today? As AI tools become part of everyday life, they don’t just produce text but shape meaning, influence trust, and impact how we find and share information. This project explores how people use, experience and…

This thesis describes the implementation and on-sky demonstration of high-resolution integral-field spectroscopy for extreme adaptive optics systems that are used to find and characterize exoplanets.

Doctoral Thesis

C-SIDe project involves a broad selection of associates in solving cybersecurity problems. Security of software systems has emerged as a critical need in our interconnected society. Companies developing software products look for Security-by-Design approaches accommodating security into their software…

How can wide-scale applications of isotope analyses and isotope mapping contribute to the identification of ancient migrants and their origins in the Western Caribbean? Can we observe linkages between individual behaviors and long-term patterns, for example as manifested in continuous waves of migration?…

How are night spaces imagined, produced, experienced and narrated by migrant communities in Europe? This research project considers this question in eight European cities: Aarhus, Amsterdam, Berlin, Cork, Galway, Lisbon, London, Rotterdam. Authorities have historically wrestled with the issue of night-time…

Cognitive enhancement reflects the use of any (legitimate) means such as for example food supplements to reach one’s personal best.

Promotor: P. J. J. Hooykaas Co-promotor: B. S de Pater

In the Netherlands approximately 130 out of 700 secondary schools offer a bilingual stream. However, research about CLIL (Content and Language Integrated Learning) is limited. With her dissertation Evelyn van Kampen (PhD student at ICLON) wants to contribute to the understanding of the nature and range…

Moritz Jesse, Associate Professor of EU Law at the Europa Institute, has published his book, “The Civic Citizens of Europe: The Legal Potential for Immigrant Integration in the EU, Belgium, Germany, and the United Kingdom”.

In which way and to which extent is integration articulated in concept maps and which factors affect the resulting concept maps? By which factors is the perceived usefulness of such concept maps affected?

The central aims of this project are to establish the shapes of the various urban hierarchies existing in the provinces of the Roman Empire and (especially) to use the quantitative properties of these hierarchies to shed new light on levels of economic integration.

Limiting global warming to 1.5°C will require aggressive emission reductions and large-scale CO₂ removal from the atmosphere. Carbon Dioxide Removal (CDR) can neutralize hard-to-abate residual emissions and even draw down atmospheric CO₂ to reverse a temperature overshoot. However, deploying CDR at…

This thesis addresses the challenge of sustainable urban development by analyzing the interplay between green and grey infrastructure to optimize resource use and ecosystem services.

The zebrafish is a promising vertebrate model organism in early drug discovery and development.

Despite the value of technology integration for educational equity and quality being emphasized by numerous studies, many gaps exist about how technology integration can be approached in policy plans, implemented in pedagogical practices, and embraced by teachers, students, and parents.

Parkinson's disease is the second most common neurodegenerative disease in the world. One of its symptoms is the loss of dopaminergic neurons in the substantia nigra pars compacta.

Where does Europe begin and end? How have the European Union and its precursors decided which countries are eligible to join the community and which are not? Few issues are more hotly debated, more important for the course of European integration, or more consequential for individuals in and around…

Arco Timmermans, Professor by special appointment Public Affairs at Leiden University, brought sience to practice by designing an “ideal” academic education programme on public affairs, to be embedded and taught at the graduate level.

What are best practices for teaching students to engage with 'wicked' problems?