This thesis considers multi-prover commitment schemes whose security is based on restrictions on the communication between the provers.

Promotor: Prof.dr. J.N. Kok, Co-promotor: A.J. Knobbe

Neurodegenerative diseases, including Parkinson’s disease (PD), are increasing in prevalence due to the aging population. Despite extensive study, these diseases are still not fully understood and the lack of personalised treatment options that can target the cause of the diseases, rather than the symptoms,…

Promotor: Prof.dr. T. Hankemeier

Actinobacteria are well known for the production of bioactive natural products, many of which have applications in the fields of human, animal and plant health. Subject of this thesis are the anthracyclines, glycosylated aromatic polyketides with potent anticancer activity.

Promotor: W.T. de Groot

Leids nanofysicus Carlo Beenakker participeert in een Delfts-Leids driemanschap dat met 15 miljoen Euro Europees geld een lab mag gaan opzetten om de kwantumcomputer van de grond te krijgen. Het Majoranadeeltje gaat hen daarbij helpen.

The Vallesian, 11.1-9 Ma, was a special time in the Vallès-Penedes basin near Barcelona, where a biodiversity hotspot existed. Europe had a subtropical climate, with rhinos, forest giraffes, lions, hyenas, flying squirrels and primates.

Promotor: G.P. van Wezel, Co-Promotor: E. Vijgenboom

Stars like the sun are born in large molecular clouds existing from gas and dust. During the formation process, the chemical composition of the material can be altered drastically by the changing physical conditions.

Where does the urge to collect come from? What are the explicit or underlying reasons for gathering large amount of objects?

Statistical considerations guide the design and implementation of the experiments that scientists perform. For instance, in a clinical trial about a the efficacy of a treatment, its effect in a certain minimum amount of patients has to be observed in order to make confident assertions about the efficacy…

Announcement of the publication of Vamping the Stage: Female Voices of Asian Modernities, the first book-length study of women, modernity, and popular music in Asia (University of Hawai'i Press, 2017).

In Mykeens Griekenland verschenen vanaf 1600 v. Chr. zeer veel monumentale bouwwerken zoals grote graftombes. Waarom stopte die bouwlust 400 jaar later abrupt? Archeoloog Ann Brysbaert onderzoekt de mogelijke oorzaken dankzij haar ERC Consolidator Grant.

Elektronen in grafeen gedragen zich als lichtdeeltjes; ze hebben geen massa en gaan overal doorheen. Heel handig als je droomt over nano-elektronica. Maar je moet ze wel in goede banen leiden. Carlo Beenakker gaat onderzoeken hoe. Hij kreeg er een ERC Advanced Grant voor van 1,5 miljoen euro.

The origin and evolution of galaxies are closely linked to many different physical phenomena.

Op 23 juni 2020 verdedigde Santy Kouwagam haar proefschrift 'How lawyers win land conflicts for corporations: Legal Strategy and its influence on the Rule of Law in Indonesia'. Het promotieonderzoek is begeleid door promotoren prof.dr. A.W. Bedner en prof.dr. C.E. von Benda-Beckmann.

A convolutional neural network (CNN) is a biologically inspired algorithm, highly capable at processing images and videos.

Promotores: Prof.dr. H.S. Overkleeft, Prof.dr. G.A. van der Marel

Humans share meaning through language. Over time, repeated interactions have shaped languages into forms that match our cognitive preferences, making them structured, expressive, easy to learn, and ultimately, meaningful.

Promotores: Prof.dr. M. Franx, Prof.dr. M. Kriek (Univ. of California at Berkeley)

N-acylethanolamines (NAEs), including N-arachidonoylethanolamine (anandamide, AEA), N-palmitoylethanolamine (PEA) and N-oleoylethanolamine (OEA), are signaling lipids that play an important role in different physiological process.

OB associations are loose groups of young, massive stars. They constitute the last stage of the massive starformation process, and the context in which new stars are formed.

Before the large scale use of renewable energy sources can be implemented in our society, the storage of electrical energy needs to be tackled. Storage the energy as hydrogen via the reduction of protons is a good option.

Twee Leidse onderzoekers krijgen Proof of Concept-subsidies van de ERC. Deze subsidies, van ieder 150.000 euro, zijn bedoeld om de resultaten van hun eerdere ERC-projecten te vertalen naar vernieuwende maatschappelijke toepassingen.

Dit project onderzoekt hoe kunstenaars in Lissabon en Rotterdam verhalen over diversiteit en migratie verbeelden. Hun kunst laat zien hoe stedelijk leven, thuishoren en identiteit op nieuwe manieren kunnen worden begrepen.

Psychologielab op Wielen is mogelijk dankzij de steun van onze partners.

Research

Students Practicing Citizen Journalism

In this Yearbook you will find some fascinating examples of what was done in 2021, not only by ourselves, but also by our international colleagues.

Internationale wetenschappelijke consortia zijn steeds belangrijker binnen de wetenschap. Ze staan tegenwoordig vaak centraal bij de aanpak van mondiale vraagstukken op het gebied van gezondheid, milieu en schone energie. Ze kennen echter ook unieke uitdagingen. Om die in kaart te brengen, ontving hoogleraar…

This research delves into a region of space known as the interstellar medium (ISM), which is essentially the area between the stars filled with gas and dust.

Bij de Onderzoeksgroep Geweld en Geweldpreventie (Violence and Violence Prevention) wordt onderzoek gedaan naar de complexiteit van hedendaags geweld, de uiteenlopende verschijningsvormen ervan en strategieën voor preventie.

Surface acoustic waves (SAWs) are mechanical waves that travel along the surface of a material and find many applications in modern technologies due to the ease of excitation on piezoelectric substrates via interdigital transducers (IDTs).

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

Promotor: Jelle S. Kaastra Co-promotor: Jelle de Plaa

Over the last decades, aviation safety has improved strongly. As a downside, airline pilots do not have as many opportunities to develop through experience the competencies that they need in critical situations.

Solar energy is used by photosynthetic organisms to drive energy required cellular processes. Is absorbed by two groups of pigments, located in the LHCs.

The following report discusses a survey on the topic of the Sustainable Development Goals that was distributed among researchers at Leiden University in the month of November 2021.

In this thesis we study bistable reaction-diffusion equations on lattice domains.

Op 7 december 2021 verdedigde Georgina Kuipers het proefschrift 'Beschadigd vertrouwen'. Het promotieonderzoek is begeleid door prof.mr. W. den Ouden en prof.dr. M.A. van der Steen (EUR).

Promotor: Prof.dr. E Gittenberger, Co-Promotores: C.H.J.M. Fransen, B.W. Hoeksema

This dissertation presents new cryptographic protocols, which can be divided into two families.

The Standard Model (SM) of particle physics fails to explain several observed phenomena and is incomplete. In order to resolve this problem, one may extend the SM by adding new particles.

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

Until the 1990s, the only known planets were those in our Solar System. Three decades later, several thousand exoplanets have been discovered orbiting stars other than the Sun, and substantial efforts have been made to explore these strange new worlds through spectroscopic analyses of their atmosphe…

Promotores: P. Stevenhagen, E. Fouvry (Univeriste Paris Saclay)

This proposed research uses ego-documents from visual artists that were not intended for publication to reassess the scholarly debate on the demise of the Russian Avant-garde aesthetic in the twenties and early thirties of the 20th century.

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.

There is concern about the threat that nanoplastics (NPs) may pose to both wildlife and humans. This thesis explores the mechanisms of toxicity of polystyrene nanoparticles (PS-NPs) in chicken embryo.