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.

Promotor: Jaap Brouwer, Co-promotor: Remus Th. Dame

Marine sponges are important members of reef ecosystems, as they play ecological roles that are essential for the health of the reef.

Glycoside hydrolases (glycosidases/GHs) are widely abundant enzymes in all kingdoms of life and are important biocatalysts that catalyze the hydrolysis of glycosidic linkages in oligo/polysaccharides, glycoproteins and glycolipids with tremendous efficiency

Promotores: G. Persoon, R. Schefold

Plants are colonized by an astounding number of microorganisms that can provide different life-support functions, including nutrient acquisition and protection against (a)biotic stresses like drought or pathogen attack.

One of the main challenges in the development of an effective anti-cancer vaccine is the generation of an adequate and directed cellular immune response.

Streptomyces are bacteria abundant in soil that participate in diverse and complex interactions. These bacteria are the main producers of the antibiotics we currently use in the clinic.

Technologies that help to enhance our educational environments can be found everywhere.

In today's volatile market environments, companies must be able to continuously innovate. In this context, innovation does not only refer to the development of new products or business models but often also affects the entire organization, which has to transform its structures, processes, and ways of…

Human language is constantly evolving with its linguistic structure being shaped by language users at both individual and population levels. Focusing on the interplay between processes of language acquisition and communicative need in shaping human languages, this thesis introduces a novel computational…

Promotores: R. Cramer, A.K. Lenstra, Co-Promotor: B.M.M. de Weger

Op 13 oktober 2021 verdedigde Ross Spence het proefschrift 'Collateral Transactions and Shadow Banking'. Het promotieonderzoek is begeleid door promotoren prof.mr. M. Haentjens en prof.dr. A.M. Pacces (UvA).

Radiography is an important technique to inspect objects, with applications in airports and hospitals. X-ray imaging is also essential in industry, for instance in food safety checks for the presence of foreign objects.

The basic program comprises a total of twelve courses organized by the Research School, that have been purpose-developed for training and support of PhD students and Research MA students who specialize in Medieval Studies (history, art history, and literary history, in particular).

In meta-analysis, heterogeneity often exists between studies. In such cases, it is essential to investigate the sources of heterogeneity and understand the relationship between effect size and study characteristics (i.e., moderators).

One of the key discoveries in exoplanet research over the past decade is the abundance of small planets in our Milky Way. Despite their high numbers, our understanding of their atmospheres remains limited, and it is unknown if they possess atmospheres at all.

Promotor: Prof.dr. W.T.F. den Hollander

Enkele keren per jaar organiseert het Europa Instituut een ‘Meet the Author’ bijeenkomst. In het kader van deze nieuwe lezingenreeks komen externe academici naar Leiden om te spreken over een recente publicatie. ‘Meet the Author’ bijeenkomsten vangen aan met een gesprek tussen een lid van het Europa…

Actuele informatie over ICT-storingen en gepland onderhoud.

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

Promotor: Prof.dr. E.F. Smets. Co-promotores: B. Gravendeel, F. Pupulin

Streptomyces bacteria are a valuable source of natural products, many of which are used in the clinic or in biotechnology.

Op maandag 19 mei 2025 organiseert Website Application Services van het ISSC in samenwerking met SC&M een Webinar Universitaire Website[s]. Tijdens dit online web event wordt je o.a. ge-update over diverse inhoudelijke zaken die voor jou als webredacteur belangrijk kunnen zijn! Ga via deze link…

Women Writing Mexico (WWM) is a network of women and men concerned with the human rights crisis in Mexico and more specifically, with the impact of structural forms of poverty, everyday violence, and discrimination based on gender, race, social class, and ethnicity, that particularly have an impact…

A remarkable population of short period transiting rocky exoplanets with equilibrium temperatures on the order of 2,000 K has recently been discovered.

A common method to solve expensive function evaluation problem is using Bayesian Global Optimization, instead of Evolutionary Algorithms.

Overzicht van de vacatures bij de afdeling Economie.

Time-series forecasting through modelling sequences of temporally dependent observations has many industrial and scientific applications. While machine learning models have been widely used to create time-series forecasting models, creating efficient and performant time-series forecasting models is…

Op maandag 19 mei 2025 organiseert Website Application Services van het ISSC in samenwerking met SC&M een Webinar Universitaire Website[s]. Tijdens dit online web event wordt je o.a. ge-update over diverse inhoudelijke zaken die voor jou als webredacteur belangrijk kunnen zijn! Ga via deze link…

Onderstaand een overzicht van alle vakken die door de afdeling Economie worden verzorgd.

Kunst en vrije tijd, Kunst en vrije tijd

Het LAK biedt verschillende schrijfcursussen aan. Maak kennis met de wereld van verhalen verzinnen. Leer de basisvaardigheden van fictie schrijven en leer als schrijver je eigen stem vinden en zet de eerste belangrijke stap van een idee naar een verhaal. Of maak kennis met poëtische technieken. De keuze…

De onderzoeksgroep Cyber Security Governance bestudeert de impact van moderne technologie op governance, soevereiniteit, wetshandhaving en internationale betrekkingen, en levert toonaangevend academisch onderzoek en beleidsinzichten.

Climate change is a challenge for both current and future generations. New biological resources have to be developed in order to meet the demand for energy as well as the demand for food.

In het academisch jaar 2023-2024 biedt het interdisciplinaire onderzoeksprogramma Sociale Veerkracht en Veiligheid vier vakken aan voor studenten die beginnen met het derde jaar van hun bachelor. Deze vakken zijn te volgen binnen de ruimte voor keuzevakken. Je kunt de vakken afzonderlijk als keuzevak…

In order to be able to develop effective medicine and treatments to prevent or cure autoimmune diseases or cancer we need to understand the mechanisms how they arise and what drives their course.Unravelling the fundamental molecular mechanisms influencing the onset and course of diseases such as allergies,…

In-use stocks of products can be considered as intermediaries between human needs and the physical world.

Promotor: M. Franx, Co-Promotor: I.F. Labbé

In analogy to mathematical proofs, the goal of a proof system is for a prover to convince a verifier of the correctness of a claim.

The endophytic microbiota is a community of various microorganisms that reside in plant tissue. These microbes are known to promote plant health and resilience, and their members do not simply exist side by side.

Promotor: Prof.dr. D. Bouwmeester, Co-Promotor: M.J.A. de Dood

Electrons in a crystal lattice have properties that may differ from those of a free electron in vacuum.

How can data analytics be used as a research method in the field of legal research? This question was addressed during the Research Lab Legal Data Science on 23 September, 2016.

International trade has played a major role in defining the modern global economy. Trade, however, entangles the environmental pressures of economic sectors, giving the illusion of environmental improvements, while the opposite may be occurring.