Salicylic acid (SA) is a plant hormone, which is involved in the defense responses to pathogens and to abiotic stress, and in the regulation of plant growth and development.

Promotor: Prof.dr. P.C. van Welzen

Plastics have become an integral part of modern society due to their versatility and durability.

Lezing

This thesis describes the Multi-site All-Sky CAmeRA (MASCARA), which consists of two small robotic telescope designed to detect exoplanets around the brightest stars in the sky.

The global transition toward low-carbon energy systems and the rapid expansion of digital technologies, including artificial intelligence, are reshaping how modern societies produce, move, and process energy and information.

Promotores: T.H. Oosterkamp, N. de Jonge

In populations with a seed-bank, individuals can temporarily become dormant and refrain from reproduction until they can become active again. The repository of all dormant individuals in the population is called the seed-bank. Seed-banks are observed in many taxa, including plants, bacteria and other…

For each living organism health is ensured by correct functioning of its cells. Cells therefore have elaborate methods for regulation of their proteins.

Op 3 mei jongstleden werd de 10e Niko Tinbergenlezing georganiseerd. De lezingen werden dit jaar verzorgd door Steven Pinker en Rivke Jaffe. De beelden van de lezing van Steven Pinker zijn nu online terug te kijken en daarnaast is er een fotoreportage gemaakt.

Lezing, This Time for Africa! series

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Lezing, SMILE Talks

Lezing, SMILE Talks

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Lezing, LIMS seminar

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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).

Vorig jaar publiceerde Helen Pluut met haar co-auteurs het artikel “Social support at work and at home: Dual-buffering effects in the work-family conflict process” in het tijdschrift Organizational Behavior and Human Decision Processes. Dit artikel is nu genomineerd voor de jaarlijkse Rosabeth Moss…

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Onder vindt u de wetenschappelijke publicaties van het Navigatie Lab Leiden

Alledaagse taal uit het verleden kennen wij nauwelijks, maar taalkundig onderzoek van een unieke brievencollectie opent perspectieven. Buitgemaakte brieven van mannen, vrouwen en zelfs kinderen stonden centraal in het Leidse Brieven als Buit-project onder leiding van prof. dr. Marijke van der Wal, dat…

Alumni-activiteit

Kun jij het, drie minuten gloedvol vertellen over je bèta- of geneeskunde-onderzoek? Meld je dan aan voor de Leidse voorronde van de internationale wetenschapscompetitie FameLab. De inschrijving is geopend.

Submissions are sought for a special issue with Frontiers in Political Science that explores the conceptual and practical aspects of a ‘just’ energy transition both within and beyond Europe. In particular, contributions to the theoretical and interdisciplinary foundations of just transitions, as well…

Last week, the sad news reached us that Dr Jan Schmidt passed away on 11 August 2025. We wish his partner, friends and family strength and comfort as they cope with this loss. Jan Schmidt will be remembered as one of the most prolific and learned scholars in the field of Ottoman codicology and histo…

Athletes always strive for the top. How can data scientists assist them in improving their performance? During the seminar Data Science and Sports, the possibilities and challenges of collaboration between these two worlds were discussed.

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.

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

From surface science towards industrial practice using high-pressure scanning tunneling microscopy.

In surface science there is great effort to move from studying simple, flat model surfaces in vacuum to investigating more complex model catalysts in gas environments (in situ). This thesis gives three examples of such studies using microscopy and spectroscopy.

Hoe verwerken we taal en spraak? Hoe voegen we de informatie op verschillende niveaus – intonatie, zinsstructuur, betekenis, toon, woorden, klanken - samen? Hoe staat de informatie op het ene niveau in verband met informatie op een ander niveau?

Promotor: P. J. J. Hooykaas Co-promotor: B. S de Pater

Promotor: Prof.dr. G.J. Kroes

Promotors: Prof.dr. G.R. de Snoo, Prof.dr. G.A. Persoon, Prof.dr.ir. H.H. de Iongh

Video games have emerged as one of the most interesting media of the turn of the century. The peculiar characteristic of video games is the biunivocal interaction between the computer and the human player.

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…

Promotor: A.P. IJzerman

Promotores: H.S. Overkleeft, G.A. van der Marel, Co-Promotor: R.G. Boot

Promotor: J.W. van Holten

Artificial photosynthesis has recognised potential to produce green and sustainable fuels from earth-abundant resources such as water, carbon dioxide (CO2), and sunlight.

Cryogenic electron microscopy (cryo-EM) is a powerful technique used to visualize the inside of cells and to study specific protein complexes. Within this thesis, I describe the use of various cryo-EM techniques to gain insight into the structural changes of the human pathogen, Vibrio cholerae, as it…

The solar system was formed approximately 4.56 billion years ago. Despite the numerous theories that have been developed over the years, the formation and evolution of the solar system still remain unclear.

Promotor: A.P. IJzerman

Promotor: F.J. van Lunteren, E. Jorin