Actinobacteria are Gram-positive bacteria that have a complex multicellular life cycle and are well known for their ability to produce a wide range of bioactive natural products (NPs).

Plants and their pollinators form complex interaction networks. Within these networks, species differ widely in the number of species they interact with.

We train our researchers and students in how to use laboratory animals in a responsible manor in their research. The attitude of the researcher towards the animals is crucial here.

Do you want to carry out your own three-month research project? Then Global Ethnography is the path for you! This Master's specialisation allows you to conduct a customised three-month ethnographic field research, learn how to study global issues at the local level, and develop excellent social scientific…

LCN2 organizes seminars on the last Friday of each month.

The Regular LL.M. (specialization in Public International Law) will provide you with a broad academic training.

Chromatin is an ubiquitous protein-DNA complex that forms the structural basis of DNA condensation in all eukaryotic organisms.

This thesis consists of three chapters, the first two of which concern division points of elements of the multiplicative group of a number field.

Three at the same time: a ligation strategy combining tetrazine–norbornene cycloaddition, Staudinger–Bertozzi ligation, and copper(I)-catalyzed click reaction was used to label the three catalytic activities of the proteasome simultaneously in a single experiment. The orthogonality of the three ligation…

What is nationalism and how can we study it from a historical perspective? Writing the History of Nationalism answers this question by examining eleven historical approaches to nationalism studies in theory and practice.

Our research focuses on a number of subthemes, such as the history of collecting, the agency of museum collections, the ethics of collecting (including legal aspects), and the integration of humanities and technical research in exploring the collections.

Bioactive Molecules is one of the four research themes of the Institute of Biology Leiden.

Stay informed about LCN2!

The [a]social creatures lab focusses on understanding social interaction with and between artificial creatures.

The Science, Management and Innovation (SMI) group examines organisational dynamics governing the management of complex R&D projects and technology commercialisation.

Existing work in probabilistic language modeling can be mostly divided into two categories:

Text Mining and Retrieval Leiden (TMRL) focusses on text mining and retrieval problems in complex domains.

How can the transport of molecules in living cells help to target medicines at exactly the right place?

Political scientist Nicolas Blarel (Leiden University) analsyses how non-state actors can (directly or directly) attempt to provoke conditions for a crisis between state actors that have nuclear capabilities. He argues that there is an urgent but complicated and understudied task to understand and manage…

This handbook is aimed at a wide readership interested in developing an understanding of the political, economic, and social complexity of Eastern Europe. It covers Central Europe, the Baltic republics, South Eastern Europe, and the Western Balkans, as well as all the countries of the former Soviet…

Research within our group revolves around the atomic structures of large bio-molecules and their complexes.

The [a]social creatures lab focusses on understanding social interaction with and between artificial creatures.

Microbial Sciences' contribution to the Evolution & Biodiversity research theme focuses on understanding how bacteria sense and respond to their environment, and how bacterial diversity and evolution is influenced by cooperative and antagonistic interactions taking place between microbes.

The programme group Educational Sciences is one of the six programme groups within the department of Child and Education Studies at Leiden University.

Policymakers and Academics Speaking with Each Other

We have developed a microfluidic platform for complex 3D organotypic cell cultures (so-called organ-on-a-chip systems) which are suited for integration in 96 or higher well plate format.

M.T.M. Koper, Co-promotor: D.G.H. Hetterscheid

An overview of the courses

Leiden archaeologists reveal the function of specific locations and buildings in order to protect indigenous heritage and lifestyle.

Integrating life cycle assessment (LCA) with life cycle costing (LCC) offers the opportunity to simultaneously analyze the environmental and economic aspects of product alternatives, for the integration of which a unified computational has been proposed by Heijungs et al. (2013) [1]. The project aims…

When psychologists repeated a hundred studies in 2015, their results differed in two-thirds of the studies. ‘Research into research is not a luxury but a necessity,’ says Professor of Methodology and Statistics of Psychological Research Mark de Rooij. ‘My aim is to improve psychological research, to think…

Researchers at LIACS are working to devise the computers of tomorrow that will be the backbone of the Cloud and Edge computing paradigms as well as the Internet of Things. In this respect, we are involved in research and development of high performance computing systems, embedded & real-time computing…

Physicists at the Leiden Institute of Physics (LION) conduct fundamental research into physical phenomena. They are inspired by curiosity and the desire to know more about the world in which we live. This research has always paved the way for new practical applications. These are something that the…

Contemporary Maya Calendars

What are the flows of C&DW (e.g. bricks, concrete, gypsum and wood) in the case study countries ? How to define the specification for each material to be quantified? What indicators should be used to identify the pattern of each C&DW management system? How to interpret the MFA results in relation…

The Persian Empire (539-330 BCE) was the first world empire in history. At its height, it united a territory stretching from present-day India to Libya - and it would take 2,000 years before significantly larger empires emerged in early modern Eurasia. This territorial sweep is both a source of fascination…

Data science is now growing fast in many places, but scholars at Leiden University have been developing data science techniques for a long time already. Thanks to their broad-based expertise, Leiden statisticians are currently combining the achievements in statistics with the latest methods of statistical…

The long term goal of the Biophysical Organic Chemistry/SSNMR group, headed by Prof. Huub de Groot, is to reach an understanding of structure, dynamics and functional mechanisms of membrane proteins and self-organized biological assemblies and to translate this knowledge into new concepts for nano-devices,…

How can we deal with today’s global challenges in sustainable, peaceful, fair, democratic, and effective ways? How can global events such as geopolitical shifts, ecological changes, technological innovations, and pandemics be better governed? Addressing these complex questions requires innovative, multidisciplinary…

Research at the BIOSYN group is comprised of the following research themes:

The master’s programme Industrial Ecology at Leiden University is an emerging scientific discipline that takes a systemic approach to environmental problems. The master in Industrial Ecology is a co-operation between Leiden University and Delft University of Technology.

In the Governance of Sustainability programme you learn to become a future ‘change maker’ who is able to develop governance solutions to major and complex environmental sustainability challenges.

How do people acquire language? How can you train your brain? What is the effect of stress on an unborn child? LIBC research topics range from language processing to cognitive robotics, and from psychiatric disorders to the impact of social factors on human behaviour. Meet several main research topics…

This project aims to link robot development and policymaking to reduce the complexity in robot legal compliance in the context of COVR.

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Promotores: Prof.dr. G.F.A Kersten, Prof dr. J.A. Bouwstra

A functional study of chert artefacts from preceramic sites in Colombia (2002)