We consider the propagation of electrical signals through nerve fibres.

Promotor: P.J.J. Hooykaas, Co-Promotores: P.B.F. Ouwerkerk, M. Wang

Promotores: Prof.dr. J.N. Kok, Prof.dr. C.A. Mandemakers, Co-Promotor: G. Bloothooft

With the advent of multicore processors and data centers, computer hardware has become increasingly parallel, allowing one to run multiple pieces of software at the same time on different machines. Coordination of these pieces is best expressed in a coordination language as an explicit interaction protocol…

Promotor: S.M. Verduyn Lunel, Co-promotor: O.W. van Gaans

The energy system is at the heart of two of the greatest challenges of the 21st century: decreasing CO2 emissions to meet the ambitions of the Paris agreement while fulfilling the growing energy demand associated with the economic aspirations of a growing world population.

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.

Promotor: Prof.dr. A.G.G.M. Tielens

The stratum corneum is the outermost skin layer and consists of dead cells embedded in a lipid matrix.

This thesis describes the synthesis and biochemical evaluation of a variety of cyclophellitol based activity-based probes and inhibitors targeting various endo- and exo-acting retaining glycosidases. In the last two decades a variety of probes and inhibitors for (hemi)cellulose degrading enzymes have…

De nieuwste opleiding van Universiteit Leiden heet Urban Studies. Hoe gaat dat, het opzetten van een compleet nieuwe studie? De bedenkers aan het woord.

Aan de Universiteit Leiden zijn ruim honderd specialisten werkzaam op het terrein van de Middeleeuwen en de Vroegmoderne Tijd. Met ingang van 2017-2018 bundelen zij hun krachten binnen twee keuzetrajecten – Medieval Studies en Early Modern Studies – beide te volgen vanuit bestaande masteropleidingen…

Promotor: Arjen Doelman, Co-promotor: Vivi Rottschäfer

The mission of our group is understanding how science communication works to improve the interaction between science and society. We believe better science communication can improve our society and engage many different groups with science, also improving science.

De Engelstalige bacheloropleiding Urban Studies ging dit jaar van start, maar wat houdt de opleiding precies in? André Gerrits, hoogleraar International Studies and Global Politics, was te gast bij Sleutelstad om te spreken over deze nieuwe opleiding.

De Universiteit Leiden heeft een nieuw interdisciplinair studieprogramma gelanceerd: Urban Studies. Studenten duiken in dit Engelstalige bachelorprogramma in hedendaagse en toekomstige stedenproblematiek. Het is de eerste studie waarvoor vijf faculteiten de handen ineenslaan.

OB associations are loose groups of young, massive stars. They constitute the last stage of the massive starformation process, and the context in which new stars are formed.

De bachelor Security Studies heeft een bronzen medaille ontvangen in EW Beste studies 2023. Elk jaar selecteert EW Beste Studies topopleidingen.

To meet the rising demand for minerals driven by the global shift to clean energy technologies, ensuring responsible and resilient supply chains is critical. Minerals like cobalt, lithium, and nickel for batteries, neodymium and zinc for wind turbines, and indium for solar panels are essential.

Op woensdag 31 augustus 2022 vond de diploma-uitreiking plaats van de BSc Security Studies. De ceremonie werd geopend door programmadirecteur Daan Weggemans.

Promotor: J.W.M. Frenken Co-Promotor: R. Felici

Promotor: A. Doelman, Co-promotor: M.F.E. de Jeu

Promotor: Prof.dr. T. Schmidt, Co-Promotor: S.J.T. van Noort

Actinobacteria are Gram-positive bacteria that have a complex multicellular life cycle and are well known for their ability to produce a wide range of bioactive natural products (NPs).

The adenosine receptors are proteins that reside in the extracellular membranes of cells. Activation of adenosine receptors plays a role in many physiological and pathological processes, such as immune responses and cancers.

Waar komen International Studies alumni terecht na hun afstuderen? Maak kennis met Guido, Paulien en Lennart. Zij deden alle drie de bachelor International Studies aan de Universiteit Leiden in Den Haag en zijn na hun studie in heel verschillende sectoren terechtgekomen.

The ultimate aim of this project is to improve cooperation between courts in different Member States.

Rutsel Martha, voormalig minister van Justitie van de Nederlandse Antillen, voormalig General Council van Interpol en bovendien alumnus van de Universiteit Leiden, sprak over op de positie van Staten en intergouvernementele organisaties (IGO’s) binnen het internationaal financieel recht.

Programma directeur van het bachelorprogramma Security Studies Daan Weggemans trapte vanmiddag het eerste webinar voor studiekiezers af. In Kaltura Live had hij een internationaal publiek van zo’n 60 geïnteresseerden.

Promotor: Promotor: W.Th.F. den Hollander, Co-promotor: V. Sidoravicius.

Carbohydrates, or sugars, are the most diverse and most abundant biomolecules known. However, the isolation of carbohydrate samples in sufficient amounts and purity is often impractical or even impossible, so the chemical synthesis of glycosides becomes relevant. The glycosylation reaction, in which…

In this thesis, two potential therapeutic targets for diabetic nephropathy were dentified and investigated. First, we show that glomerular clusterin is upregulated in diabetic nephropathy and demonstrated that recombinant clusterin protein can protect the podocytes against oxidative stress in vitro.…

De Nederlandse krijgsmacht is de afgelopen jaren op vele fronten veranderd. Letterlijk en figuurlijk. Deze uitgave brengt de laatste kennis en inzichten over het functioneren van dit belangrijke instituut bijeen. Een handboek voor praktijk, wetenschap en onderwijs.

Promotor: Prof.dr. M. Ubbink, Co-promotor: G. Siegal

The adsorption of D2 and CO2 on catalyst surfaces is studied using a molecular beam in ultra-high vacuum.

Op vrijdag 29 augustus 2025 ontvingen 370 studenten hun bachelordiploma International Studies. De diploma's werden uitgereikt in de historische ambiance van de Pieterskerk in Leiden. Familieleden, vrienden en medewerkers waren toegestroomd om deze heuglijke gebeurtenis met de afgestudeerden te vieren…

The thesis describes terrestrial field trials aimed to detect side-effects of pesticides within the framework of pesticide registration procedures. Field trials were developed using vascular plants Brassica napus and Poa annua, caterpillars Pieris brassicae and effects on decomposition were studied…

This dissertation is a collection of four research articles devoted to the study of Kummer theory for commutative algebraic groups.

Promotor: S.J. Edixhoven, L.D.J. Taelman

This thesis provides explicit expressions for the density functions of absolutely continuous invariant measures for general families of interval maps, that include random maps and infinite measure transformations, not necessarily number systems.

Alumni-activiteit, Brussels

The research group Science Communication and Society aims to understand how science communication works to improve the interaction between science and society. Central themes are ‘Bridging the gap between experts and the general public’ and ‘Evaluating Science Communication’.

The thesis is about the study of shell evolution of the Hydrocenidae of the genus Georissa. This thesis started with a general overview on the evolutionary process of animals due to ecological changes.

The parabolic Anderson model (PAM), which is the Cauchy problem for the heat equation with random potential. The PAM is a mathematical model that describes how mass (i.e. matter or energy) flows in a medium in the presence of a field of sources and sinks.

Promotor: Prof.dr. M.T.M. Koper, Co-Promotor: F. Calle-Vallejo

Op vrijdag 11 december 2020 vond het eindejaarsseminar van Empirical Legal Studies plaats, uiteraard geheel coronaproof online. Via dit seminar konden collega’s en andere geïnteresseerden op een laagdrempelige manier meer te weten komen over het toepassen van empirische onderzoeksmethoden in de rec…