Promotor: P. T. de Zeeuw, Co-promotor: N. Neumayer; G. van de Ven

Optimization tasks in practice have multifaceted challenges as they are often black box, subject to multiple equality and inequality constraints and expensive to evaluate.

Artin L-functions associated to continuous representations of the absolute Galois group G_K of a global field K capture a lot of information about G_K as well as arithmetic properties of K.

Promotor: E. Gittenberger, Co-promotor: B.W. Hoeksema

Promotor: Prof.dr. P.G.L Klinkhamer, Co-promotor: K. Vrieling

This thesis explores the theoretical and observational properties of distant massive galaxies that harbour active black holes in their centres and shine brightly at radio wavelengths.

This article 'Shaping the European External Action Service and its post-Lisbon crisis management structures: an assessment of the EU High Representatives’ political leadership' assesses the role, influence and core aspects of the EU High Representatives’ (HR/VPs) “political leadership” in the context…

Promotor: Prof.dr. L.J. Slikkerveer

Creating a framework to assess the sustainability of fish farms which will set sustainability standards and give consumers information about the the sustainability and safety of their seafood.

In his dissertation Michiel Hooykaas outlines the results of six empirical research projects focused at biodiversity awareness in the Netherlands, specifically people’s knowledge about animals.

The field of exoplanet research is rapidly advancing through the development of new technology, observing techniques, and post-processing methods.

Self-assembly is an abundant process in nature and is vital to many processes in living organisms.

For centuries astronomers studied the Universe by collecting light. Nowadays, we are living in times of great technological advancements, which allow us to explore our Universe in a new way - though gravitational wave radiation.

Wetland plants are distinguished from plants of other terrestrial ecosystems by their adaptations to specific habitat stresses, including waterlogged and flooding and the subsequent abundance of phytotoxic compounds.

Mechanical metamaterials are man-made materials which derive their unusual properties from their structure rather than their composition.

When observing star-forming galaxies, we are not only seeing stellar light, but we also see how this interacts with galactic gas and dust. This thesis contains studies of the stellar, nebular and dust properties of low mass star-forming galaxies.

Circumstellar discs are the reservoirs of gas and dust that surround young stars and have the potential to become planetary systems.

The high velocity tail of the total velocity distribution of stars provides essential insight into fundamental properties of the Galaxy.

The radio sky harbours both galactic and extragalactic sources of arcminute- to degree-scale emission of various physical origins. To discover extragalactic diffuse emission in the Cosmic Web beyond galaxy clusters, one must image low–surface brightness structures amidst a sea of brighter compact fore-…

Hot astrophysical plasma is ubiquitous in the Universe, from comets in our Solar system to the largest scale structures -- the cosmic web filaments. These hot plasmas, with the temperature of a few millions of degrees, are often observed in the X-ray wavelength range.

Why do black holes emit thermal radiation? And how does a closed quantum system thermalize?

Op deze pagina vind je de opnames van de Tuesday Talks sinds april 2025. Ook de opnames van de voorloper van de Tuesday Talks, This Week’s Discoveries, zijn hier te vinden

In dit interdisciplinaire onderzoeksprogramma werken onderzoekers uit vijf verschillende disciplines met elkaar samen. Zij stellen zich hieronder (in het Engels) aan u voor.

Hoe kunnen theorieën over moderne desinformatie helpen om te begrijpen hoe dat werkte in de Romeinse tijd?

Leiden heeft wat te vieren: eerst 450 jaar 3 October en daarna 450 jaar Universiteit Leiden. En dat is geen toeval.

Geschiedenis is een fascinerend vak: door het verleden te bestuderen, leer je het heden beter te begrijpen. Bij de bachelor Geschiedenis aan de Universiteit Leiden heb je de kans om de geschiedenis in haar volle breedte te bestuderen, van de vroege oudheid tot de moderne tijd, in Nederland en in andere…

Lezing, Pint of Science

Leiden is een echte studentenstad en heeft alles in huis om van jouw studententijd een onvergetelijke tijd te maken. Naast de vele studentenverenigingen, zoals sport-, muziek- en gezelligheidsverenigingen, zijn er ook studieverenigingen, die evenementen organiseren voor jouw opleiding.

Kunst en vrije tijd, Kunst en vrije tijd

This interdisciplinary minor addresses sustainabilty challenges from a systems perspective, and investigates ways to sustain society within planetary boundaries.

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The main aim of this project is to reveal and unravel the invisible histories of the UN, transcending the dominant Western perspective to recover the historical agency of Global South actors. The research will investigate how the UN has both facilitated and limited their role in shaping global order…

Lezing, NGL-lezing

The research in this dissertation aims to optimise blood donation processes in the framework of the Dutch national blood bank Sanquin. The primary health risk for blood donors is iron deficiency, which is evaluated based on donors' hemoglobin and ferritin levels.

Indigenous Latin American artifacts have attracted the interest of Europeans since the earliest moment of contact between Europeans and the Indigenous peoples of the Americas. The ERC-funded BECACO project uses an innovative multidisciplinary framework to investigate the provenance of ethnographic and…

The research group Politics, Culture and National Identities 1789-present investigates a wide range of national political cultures in Europe and the Americas in the 19th and 20th centuries. Instead of only analyzing high politics (the acts of governments and political parties), the research group focuses…

How and to what extent the historic house (re-)constructs identity through image-making in China.

How to bring together different footprints into an integrated family and what are the synergies? What are the roles of inventory analysis and characterization in measuring individual footprints and how these affect a footprint family? How to benchmark environmental footprints against related planetary…

Na het ontvangen van je diploma van LUC, kun je als alumni overal ter wereld heen. Velen die je voor zijn gegaan hebben ervoor gekozen om een master als vervolgopleiding te doen. Sommigen beginnen meteen aan hun professionele carrière of volgen een PhD. Door de vele academische vakgebieden die op LUC…

A neurocognitive investigation of the development of social performance monitoring in youth growing up in stressful versus non-stressful environments

The research presented in this thesis concerns one of the most important questions in software engineering of our time: how can we make sure that software is free from memory safety bugs?

How can we, together international experts, define future needs of R+D contributions for innovations in the field of risk-based management of chemicals and products in a global perspective using alternative testing strategies to minimize animal tests?

Lees hier de publicaties die over het Erfgoed Gezocht project zijn verschenen.

This dissertation presents a new perspective on the life, work and character of the Dutch physical chemist Jacobus Henricus van ’t Hoff, first recipient of the Nobel Prize in Chemistry, and one of the most important and colourful scientists in Dutch history. The image of Van ’t Hoff that emerges from…

How can we broaden youth participation in STEM Learning

CML-IA is a database that contains characterisation factors for life cycle impact assessment (LCIA) and is easily read by the CMLCA software program.

A recent study on reintroduced tigers in Panna Tiger Reserve in India reveals that risks from tigers increased more because of human behaviour and people's livestock husbandry practices.