Green hydrogen is produced via a process called water electrolysis. During electrolysis water is split into oxygen and hydrogen.

The overall theme of this thesis is to complement the electrochemical data acquired in fuel cell research with in situ X-ray photoelectron spectroscopy (XPS) and soft X-ray absorption spectroscopy (XAS).

The specialisation Science Communication and Society (SCS) concerns science communication in a broad sense. The program focuses on the link between science and society and covers knowledge and skills in the field of science communication.

The transition to electric vehicles (EVs) reduces vehicle emissions to combat climate change. EVs raise concerns regarding the production of lithium-ion batteries and related emissions; while batteries can also provide energy storage services for the electricity system.

Promotor: H.J. van den Herik, B.R. Katzy, Co-promotor: K. Sailer

Prof.dr. J. Memelink

Het Leiden Leadership Centre doet onderzoek naar de ontwikkeling van doeltreffend publiek leiderschap binnen en tussen organisaties. Op basis van onze onderzoeks- en ontwikkelagenda “Verder met Publiek Leiderschap” richten we ons op publiek leiderschap in verbinding met de publieke context, maatschappelijke…

Plants, are sessile organisms, have developed strategies to adapt to changes in their environment, in part by altering their growth and development.

Pseudomonas Aeruginosa is a Gram-negative bacterium which can form biofilms, increasing its resistance against antibiotics and the host immune system. Polysaccharides are an integral part of this biofilm, one of these polysaccharides is called Psl. PslG is a glycosidase, able to cleave this polysaccharide,…

Het Leiden Leadership Centre is een internationale en interdisciplinaire netwerkorganisatie. In onze aanpak brengen we mensen met verschillende achtergronden en diverse perspectieven samen

Viral hemorrhagic fever (VHF) is a group of acute diseases caused by highly infectious viruses including Ebola, Lassa, Dengue viruses. Its high mortality rate poses high risk to public health, however, studies on VHF have been hampered due to the non-availability of proper models and incomplete knowledge…

Bacterial chemosensory arrays are protein assemblies that are the key structural and functional component for motile bacteria to sense their internal or environmental chemical signals.

This PhD-thesis presents a study on micron-sized particles, so-called colloids. By controlling the chemical and physical properties of these particles, such as the interparticle interaction and the particles’ shape, colloids can act as building blocks that self-assembly into larger structures.

Mining time series is a machine learning subfield that focuses on a particular data structure, where variables are measured over (short or long) periods of time.

During post-embryonic development into adults, animals face an environment that fluctuates constantly. For example, in nutrient availability, temperature, and osmolarity (e.g., salt concentration).

Shape and biological function are tightly connected. Physical descriptions are used to connect the shape of a biological system with its function.

Cardiovascular diseases (CVDs) are the leading global cause of mortality. Endothelial dysfunction, an early reversible stage of CVD development, is marked by decreased nitric oxide production linked to Ca2+ influx in endothelial cells.

The plant hormone auxin plays a central role in the growth and development of plants. Auxin acts in a concentration dependent manner and polar cell-to-cell transport of this hormone determines its distribution in the tissues of plants. This polar auxin transport is mediated by several families of auxin…

In this PhD-thesis several new and existing data science application are described that are particularly focused on applications for tax administrations.

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

This thesis focuses on using liposomes in two different treatment strategies; vaccination (or immunotherapy) and delivery of a small molecule, and in two different disease models; cancer and atherosclerosis.

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.

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

The filamentous bacteria Streptomyces are widespread inhabitants of terrestrial soils.

Promotor: Prof.dr. J.G.E.M. Fraaije, Co-promotor: A. Kros

In 2019 startte LUGO een petitie met het verzoek om een ambitieuze duurzaamheidsvisie voor 2030. Deze petitie is geformuleerd op basis van wat LUGO haalbaar achtte in plaats van op de beperkingen van nu. Wij vinden dat duurzaamheid een van de kernwaarden moet zijn van het volgende centrale beleidsplan…

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.

Aspergillus niger is an important industrial producer of organic acids and enzymes producing large amounts of spent fungal biomass.

Empirical Legal Studies in Leiden focuste op het bouwen van een interdisciplinaire gemeenschap van rechtsgeleerden en sociale wetenschappers die samen juridische vraagstukken onderzochten op het snijpunt van recht en gedrag, waarbij diverse soorten methoden werden gebruikt.

Thermodynamics is one of the founding scientific pillars that has helped us better understand heat engines, biology, ecosystems, and even black holes. While it fundamentally describes large systems by examining the bulk behavior of their constituents, it is anchored in the statistical equivalence of…

This thesis focuses on developing new chemical synthesis strategies to produce native ADP‑ribosylated biomolecules with precise structural control.

The first congress of the UU Paleohub, 'The Future of Paleography, Paleography of the Future'. 10 april 2025

Het Netwerk antieke wereld (Ancient Worlds Network) bestaat uit medewerkers en masterstudenten binnen het LIAS die onderzoek doen naar de antieke wereld in het Middellandse Zeegebied en het Nabije-Oosten.

Many galaxy clusters exhibit bright diffuse radio emission that traces the underlying structure of the intracluster medium (ICM).

Wil je een volledige academische opleiding? Dan ga je na je bachelor door met een masteropleiding. Met een masterdiploma op zak heb je meer kans op een baan op academisch niveau. Na afronding krijg je de titel Master of Arts (MA).

Wil je een volledige academische opleiding? Dan ga je na je bachelor door met een masteropleiding. Met een masterdiploma op zak heb je meer kans op een baan op academisch niveau. Na afronding krijg je de titel Master of Arts (MA).

Wil je een volledige academische opleiding? Dan ga je na je bachelor door met een masteropleiding. Na een succesvol afgeronde masteropleiding ontvang je de titel Master of Arts (MA).

Wil je een volledige academische opleiding? Dan ga je na je bachelor door met een masteropleiding. Na een succesvol afgeronde masteropleiding ontvang je de titel Master of Arts (MA). Er zijn drie soorten masters: eenjarige-, onderzoeks-, of brede masters. De eenjarige master sluit perfect aan op de…

De prehistorie van communicatiemetaforen

Promotores: P. Stevenhagen, L. van Geemen (Università degli studi di Milano), Co-Supervisor: Ronald M. van Luijk

In the Schouwburgstraat, LUGO is currently redesigning the back-garden in order to increase biodiversity and make it a more beautiful space. Throughout October 2023 until March 2024, we will be making changes to the garden with our team of volunteers.

Multi-objective evolutionary computation aims to find high quality (Pareto optimal) solutions that represent the trade-off between multiple objectives.

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

An important part of the SCS specialisation is the internship period. Students will get the opportunity to get to know the field and to apply what they have learned during the courses.

Discovery and development of Central Nervous System (CNS) drugs is hampered by high attrition rates.

Cholesterol influences many pathways, including serving as precursor for adrenal steroidogenesis. Imbalance of cholesterol levels has been implicated in several diseases including cardiovascular diseases and its underlying pathology, atherosclerosis.

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

In the thesis the dynamics of strategies is studied from two perspectives.In the first part of the thesis strategies are considered to be opinions present in a community.

Promotores: Prof.dr. H.J.M. de Groot, Prof.dr. J. Matysik (Universitaet Leipzig)