Stars and planets form within cold, dense clouds of gas and dust drifting through interstellar space. Although dust makes up only a small fraction of this material, it plays a key role in shaping the chemical evolution of these environments.

By growing in a soil plants change the biotic and abiotic properties of the soil in which they grow.

The thesis describes experimental steps towards reduction of friction on the macroscopic scale by scenarios of thermo- and superlubricity well-known on the nanoscale.

Innovation plays an essential role in firms' competitiveness and long-term success. It varies from different types, ranging from run-of-the-mill innovation that brings incremental changes to existing technologies to radical innovation that breaks from existing trajectories.

In this thesis, we have studied cell images from two types of cells, including pollen grains and the immune cells, neutrophils. These images are captured using a bright field microscope and a confocal microscope.

Promotor: Prof.dr. J.W.M. Frenken

Op 30 september 2021 verdedigde Babette van Hazebroek haar proefschrift 'Understanding delinquent development from childhood into early adulthood in early onset offenders'. Het promotieonderzoek is begeleid door promotoren prof.dr. J.W. de Keijser en prof. dr. A. Popma (VUMC).

This thesis investigates the application of deep learning techniques in image analysis across various domains, focusing on four main themes: feature extraction, classification, segmentation, and integration, demonstrating the transformative potential of these technologies.

This study seeks to analyse how job stress could be the result of performing administrative tasks

The studies described in this thesis deal with glycosidases, in particular alpha-galactosidases.

This thesis explores how electron paramagnetic resonance (EPR) spectroscopy can be used to investigate key biochemical processes.

Jaroslaw Kantorowicz and Rok Spruk onderzoeken de bijdrage van institutionele hervormingen aan economische groei.

In deze publicatie worden problemen met betrekking tot de grensoverschrijdende afwikkeling van financiële instellingen onderzocht.

In this thesis, we aim to shed light on the diverse and often opposing roles of integrin α3β1 in cancer.

Religion and ethnicity are inextricably linked in discourse within and about Central Asia. One common narrative suggests that as a result of differences between historically sedentary and nomadic populations, ethnic Tajiks and Uzbeks are naturally more religious and more likely to radicalise than their…

What physics controls the properties of quantum matter, such as how electrons flow inside high-temperature superconductors? This question has captivated the physics community and industry for decades, in part due to the great technological potential such materials have, but also because they have resisted…

The thesis explores micromammal fossils from the Afşar section in Anatolia, a crucial locality for understanding the Pliocene epoch and the transition to the Villafranchian Age.

This thesis highlights the significant role of surface geometry and oxidation state in determining CO adsorption behavior on copper surfaces.

Promotie

In dit proefschrift onderzochten we hoe we kankerbehandelingen slimmer en veiliger kunnen doseren. Veel middelen worden nog volgens een “one size fits all”-schema gegeven, vaak gebaseerd op de maximaal verdraagbare dosis. Dat kan leiden tot onnodig veel bijwerkingen, behandelingonderbrekingen en hoge…

Effective policy-making requires understanding what truly causes a problem. Only then can policymakers develop targeted interventions that achieve desired outcomes.

Promotie

The global agri-food system plays a critical role in food security and environmental issues.

Promotor: Prof.dr. M. Danhof, Co-promotor: O.E. Della Pasqua

Irene Khan, expert op het gebied van mensenrechten, werpt een aantal vragen op: Wat kan men verstaan onder een ‘Culture of Justice’? Wie bepaalt wat 'Justice' is? Hoe realistisch is de bevordering van ‘Rule of Law’ en ‘Justice’ in landen waar sprake is van ernstige conflictsituaties en armoede?

Dit artikel onderzoekt de effecten van de invoering van proportionele vertegenwoordiging (PR) op de politieke vertegenwoordiging van vrouwen.

Hoe kan complexiteitswetenschap de transformatie van inlichtingen bevorderen?

Dit proefschrift betreft een interpretatief onderzoek naar de wijze waarop leraren hun dagelijkse leraar-leerling interacties interpreteren in termen van het belang van hun leerlingen.

In this PhD study, I aim to deepen our understanding of the influence of major mycorrhizal types, namely arbuscular mycorrhizae (AM) and ectomycorrhizae (EM), on the global soil carbon cycle and their potential distribution changes under future environmental shifts.

The role of the interfacial environment during electrochemical reactions has been increasingly valued, especially for those reactions involving protons or hydroxyl ions.

This thesis focuses on the social dimensions of crane and wetland conservation in rural landscapes in Kenya, Uganda and Zimbabwe.

Promotor: A.H. Meijer, Co-promotor: B.E. Snaar-Jagalska

This article examines how immigration from Central and Eastern Europe influences political support for Eurosceptic parties.

Deelproject van

Op 19 februari promoveert Mariana Martins. Het Leiden University Centre for Linguistics feliciteert Mariana!

Promotie

With an emphasis on developing novel miktoarm star polymers termed PeptoMiktoStars, this thesis leverages asymmetric polymeric polypept(o)ide frameworks to advance their effectiveness in delivering hydrophobic drugs and nucleic acids.

Hybrid Symposium: Medieval miniatures from Byvanck to the RKD. 18 March 2025, Den Haag.

This thesis aimed to investigate core cross-linked polymeric micelles (CCPMs) and expand their potential for the delivery of hydrophobic drugs and co-factors.

Op 15 april promoveert Shaoyu Wang. Het Leiden University Centre for Linguistics feliciteert Shaoyu!

In dit artikel onderzoeken de onderzoekers hoe solidariteit begrepen kan worden, rekening houdend met de diversiteit van verhalen, ruimtes, praktijken, lichamen en tijdsperiodes in een stad.

It is time for the fifth lecture in the series Manuscript Mondays. We shall have two speakers. Jesse Keskiaho (University of Helsinki, Finland) will start with a talk about the soul. In the second talk Evina Steinova will tell us more about the medieval encyclopaedia. The talks will be followed by a…

Leiden University Research & Innovation Services (LURIS), de afdeling van de Universiteit Leiden en het LUMC die de valorisatie van het wetenschappelijk onderzoek stimuleert en in goede banen leidt, presenteert op 28 oktober het boek Focus on the Appliance of Science from Leiden. Dat laat vanuit diverse…

Solliciteer nu voor de LUCIS Summer School on Philology and Manuscripts from the Muslim world. De summer school vindt plaats in Leiden van dinsdag 15 augustus 2017 tot en met vrijdag 25 augustus 2017. Solliciteren kan tot vrijdag 16 juni 2017.

What are the pressing issues of our time, and how can different disciplines come together to address them? Studium Generale and Leiden University College (LUC) present the Global Challenges series: events that bring together researchers from LUC and experts from other disciplines to tackle a shared…

Machine Learning is becoming a more and more substantial technology for industry.

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

Early time-resolved experiments by Frauenfelder on the ensemble of the kinetic rebinding of CO to myoglobin molecules resulted in a stretched exponential relaxa-tion due to a very large spread of the reaction rates of individual molecules.

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

Microbiome composition of the spermosphere and the rhizosphere of wild and modern bean accessions grown in an agricultural and a native soil from Colombia was characterized by metagenomics and cultivation-dependent approaches.