Plant exudates appeared long time ago in the history line of life in the early Devonian. They are typical saps produced by specialized cells.

Low-mass main-sequence stars like our Sun are continuous sources of outflowing hot magnetised plasma. In the case of the Sun, this is known as the solar wind, whereas for other stars they are called stellar winds.

Despite being the object of intense study, embryonic development has been difficult to model due to a number of reasons. First, complex tissues can be comprised of many cell types, of which we probably only know a subset.

The basic concern that informs every part of the research is in wonder of what happens when sound happens as an aesthetic force. The emphasis of each query lies on the active occasion, the radical empiricism, the moment of encounter, how the sonic event comes to pass as aesthetic force.

We will study how inoculation of former arable land with soil (including the microbiome, soil fauna and seeds/rhizomes of ground flora) from old forests along with planting targeted tree species mixtures will improve productivity and more rapidly restore forest-adapted communities and ulttimately result…

Research and design are two activities that are becoming increasingly important in the Dutch subjects O&O (‘research and design’) and NLT ('nature, life and technology’). The dissertation of Tessa Vossen (ICLON and Faculty of Science) indicates that teachers and students understand the importance of…

This dissertation combines the use of defined microenvironments, high-resolution fluorescence microscopy, and time-resolved analysis, to study intracellular and cellular motility.

Global Transformations and Governance Challenges (GTGC) at Leiden University aims to advance knowledge and practice on how we govern – and could govern – major world-scale changes in contemporary society. These global transformations include hegemonic and other geopolitical shifts, ecological changes,…

On 25 May, Roxane de Massol de Rebetz defended the thesis 'Beyond the dichotomy between migrant smuggling and human trafficking: a Belgian case study on the governance of migrants in transit'. The doctoral research was supervised by Maartje van der Woude, Joanne van der Leun and Masja van Meeteren.

When EU member states signed the Treaty of Lisbon in 2007, they did not anticipate the manifold crises in store for them over the following years. Instead of the intended consolidation of a Union which had just gone through its most profound modernisation and biggest round of enlargements, the EU has…

Josien de Klerk and Tennessee Miller examined the interplay between students’ illness and recovery experiences and academic work culture in this context.

The agency and impact of Greek statuary in the city of Rome

Promotor: W. Jiskoot, Co-promotor: A. Hawe

The research group on governance of crises studies phenomena, dynamics and actors related to crisis governance. The Leiden University Crisis Research Center (CRC) is part of this Research Group.

Promotor: Prof.dr. J.A. Bouwstra, Co-promotor: Dr. A. El Ghalbzouri

Promotores: G. Persoon, R. Schefold

This book explores the relationship between tragedy and the justice that is sought in moral philosophy and the law. It shows how our moral and legal judgments can be seen as aesthetic or tragic judgments, and it considers what kind of passion or vocation moves the science and scholarship of law.

What was the nature of the urban network in the Roman provinces of Germania Superior, Raetia and Noricum and how stood this in relation with economic and social developments?

From junior school pupils to university students: the Living Lab is a valuable place of study for many people. Every year the Living Lab trains dozens of students at vocational, college and university level. More than a thousand pupils also have lessons on location, and junior schools use over thirty…

This study documents and translates the Saa (Zapotec) cultural heritage of the Bene’ Ya’a/En’ne I’ya peoples, the Zapotec inhabitants of the Sierra Norte of Oaxaca.

Bet v1, the major allergen in birch pollen, is one of the main causes of allergies such as asthma and rhino-conjunctivitis. Additionally it is the main cause of birch pollen allergy in humans.

French title: Entre la “détresse’’ et l’inter-connectivite : le case de Mbororo réfugies sur les frontières Cameroun-Centrafrique. This research project investigates the meaning of duress in the lives of nomadic refugees in Cameroon and investigates if and how the accessibility of new ICT’s allow them…

Living together in a residential setting adds another dimension to this learning, as our students have to learn to live with others who may not share the same daily routines or standards.

The mission of the Plant Science research programme is to contribute to the sustainable production of high quality crops, flowers and high-value bio-based products. This is realised by generating fundamental knowledge of basic biological processes related to development of plants and their interaction…

List of Support Departments at LION and the Faculty of Science

Leiden University's Pre-University College is for secondary school pupils that are looking for an extra challenge and are curious about science. Prerequisite is that your school is a partner of the Pre-University College.

Is there a sufficiently large market for drug screening and testing in Zebrafish larvae using membrane fusion?

In his book The magic of healing, Willem van der Does talks about 14 pioneers in the history of psychiatry. These pioneers all had one thing in common: they started with a radical idea which led to great enthusiasm.

Ironies of Solidarity is an ethnographic study of how financial products and services affect inequalities and conflicts in South Africa.

Erasmus+ Cooperation Partnerships (Key Action 2) are transnational projects designed to develop and share innovative practices and promote cooperation, peer learning, and exchanges of experiences in the fields of education, training, and youth. There are two kinds of Cooperation Partnerships; those…

Understanding the water use of power production is an important step to both a sustainable energy transition and an improved understanding of water conservation measures. However, there are large differences across the literature that currently present barriers to decision making.

How to interpret the concept of truth is a much debated topic in the history of philosophy. The issues related to truth involve language, reality and their correspondence relations.

In this article, Honorata Mazepus, assistant professor at the Institute of Security and Global Affairs, and Dimiter Toshkov, associate professor at the Institute of Public Administration, discuss whether the winner–loser gap extends beyond the political domain to subjective health and well-being as…

Promotor: J.P. Abrahams, Co-Promotor: N.S. Pannu

Research in the Lars Jeuken group focusses on redox-active proteins and membranes enzymes, aiming to understand bacterial respiration at the molecular level for the development of antimicrobials and semi-artificial photo-synthetic cells.

El Chorro de Maita, Cuba

Songbirds as vocal learners learn their songs and song preference from social tutors⁠. Tutor choice for both song and preference learning are important to characterize for understanding individual learning performance and cultural transmission of song⁠.

Children with autism spectrum disorder experience serious challenges in social functioning, which threatens their development in many areas of functioning.

The Dutch colonial past in Indonesia has had a major influence on literature.

Promotors: W. Jiskoot; G.J. Witkamp, Co-promotor: M.R. Nejadnik

Mission: The Environmental Biology department aims to increase the scientific understanding of how current and emerging anthropogenic threats affect biodiversity and ecosystem services. Through this understanding they facilitate strategic management of natural resources by addressing urgent challenges…

De Pagus Renensis van de 4de tot de 8ste eeuw na Chr.: Een archeologische synthese

Promotor: T. Schmidt, Co-Promotor: B.E. Snaar-Jagalska

Developing robust and comprehensive analytical methods to size and quantify subvisible particles in biopharmaceutical products.

In 1940 the Germany occupiers ordered the dismissal of all Jewish staff of the university. This resulted in protest speeches by fellow academics.

It is well-known that humans have significantly transformed ecosystems since their adoption of agriculture. However, in a deeper past, prehistoric hunter-gatherers may already have altered and modified their niche in ways that had major impacts on ecosystems.

This paper explores the long-term endurance of “breath” as a schema of personhood in the Austronesian-speaking world, from a comparative-ethnographic approach to the “Man with No Breath” figure featured in Philippine epics. This is one of two contributions from Myfel D. Paluga and Andrea Malaya M.…

Human skin equivalents (HSEs) can be a valuable tool to study aspects of human skin, including the skin barrier, or to perform chemical or toxicological screenings.

In this thesis we will explore the use of fuzzy systems theory for applications in bioinformatics.