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Does the public speaking anxiety that many youngsters experience originates from specific characteristics in their earlier development?

What are the developmental pathways to social anxiety (disorder), the causal processes and maintaining factors? How do these factors interact in the development of social anxiety disorder? How can this knowledge be used to design and implement effective preventive intervention programs for youth?

How do teachers conceptualise, develop and implement an effective CLIL practice?

This thesis describes how different colours of light affect various aspects of the growth and development of Arabidopsis and tomato plants⁠.

This book brings together a collection of emergent research that moves the debate on desistance beyond a general consideration of individual and social structural influences.

Young people tend to take more risks than children or adults. This trend is related to the reward centre in the brain, which is much more active when they are rewarded, PhD candidate Barbara Braams discovered. Personality, testosterone levels and social context also play a role in risk-taking.

Science, Institute of Biology Leiden (IBL)

Are you thinking about studying Law and Society? Learn more and watch the videos.

This project investigates ancient water management of streams, springs and runoffs on the archaeological site of Monte Albán, Mexico, as a means to contribute with different stakeholders in the development of sustainable solutions to water problems today such as floods and scarcity.

What is the mechanism of action preceding a physiological effects induced by metallic nanoparticles?

Promotor: Prof.dr. H.P. Spaink Co-promotor: Dr. B.E. Snaar

Promotores: Prof.dr.G.R. de Snoo and Dr. R. Heijungs

Advanced mass spectrometry of glycosphingolipids takes the central stage in this thesis. Investigations focus on characterization of glycosphingolipid metabolism in health and disease with emphasis to the detection and accurate quantitation of known and so far unknown glycosphingolipids and closely…

Promotor: G.A. van der Marel, Co-promotor: D.C. Codée

Bacteria are highly complex and diverse organisms that have adapted to survive in ecological niches ranging from the most extreme to the most heterogeneous environments.

The plant hormone auxin regulates plant growth and development through polar cell-to-cell transport-generated maxima and minima. PIN FORMED (PIN) auxin efflux carriers determine the direction of this auxin flow through their asymmetric placement on the plasma membrane (PM).

The development of new environmentally sound technologies is seen as a key route towards achieving sustainability.

In the public debate on the coronavirus, bold assertions from academics, doctors and other medical practitioners are often heard. For example, that the coronavirus would be no more deadly than the flu. Or that measures to combat the virus like wearing face coverings are unnecessary.

Antonia Lamers, PhD at ICLON, researched how to create a TNE teaching and learning environment that is in line with the expectations of the British programmes offered to students in Oman.

Mapping the neural mechanisms underlying social motivations of adolescents and adults

Promotores: Prof. dr. G.R. (Geert) de Snoo, Dr. E. (Ester) van der Voet

The research described in this Thesis was aimed at designing and synthesizing nature-inspired compounds as part of TB vaccine discovery.

How can we assist Universitas Indonesia's department of International law to improve their educational and applied research programs on Transnational Law, Asset Recovery and International Investment Arbitration, with an eye on Indonesia’s security and rule of law reform agenda and the needs of the…

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How do early modern states organize effective rule in difficult conditions? EMStaD YEMEN focuses on a country that due to its geographical, religious and social complexities is now considered a failed state – Yemen.

Birds sing to be heard, but how do they cope with increasing noise levels? Which species persist in cities and why? And do they thrive or suffer in the urban soundscape?

The effects of anthropogenic noise on interactions between predators and their prey are still little understood.

Frans Stoelinga defended his thesis on 19 November 2020.

Promotores: Prof. Dr. Th.J.C. van Berkel, Prof. Dr. M. van Eck

PhD defence

Some examples of AI-research done at Leiden.

There is an increasing amount of attention on EU and its Member States contributions to implementation of two landmark agreements: the Paris Climate Agreement and the UN Agenda 2030 with Sustainable Development Goals (SDGs). Absent from the current literature is an analysis of the political effect of…

If you replace the standard hydrogen atoms in ice with a heavier variant, something odd happens. The volume occupied by the molecules increases by 0.1 per cent. Leiden chemist Jörg Meyer and his colleagues have created a theoretical model that describes this behaviour. Their research appeared on the…

The China Region Group develops and monitors Leiden University's cooperation with China. It is chaired by the Dean of the Faculty of Science, Prof. Jasper Knoester, and consists of representatives of Leiden University's faculties and various policy departments.

Each month, we will interview a student or staff member from Leiden University about their work or studies in relation to sustainability.

The 80,000 visitors to the Liberation Day Festival in The Hague on 5 May can learn about 444-year-old Leiden University at a range of interactive events on Malieveld and in the Dutch Parliament.