For centuries astronomers studied the Universe by collecting light. Nowadays, we are living in times of great technological advancements, which allow us to explore our Universe in a new way - though gravitational wave radiation.

A dense region of a gaseous and dusty cloud collapses to form a protostar surrounded by a disk and an envelope. This thesis uses both observations and models to study physical and chemical conditions of these protostellar systems which are likely where planets start to form.

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

Lysosomal acid glucosylceramidase (GBA1) is a lysosomal enzyme that degrades glucolipids with its main substrate being glucosylceramide (GlcCer). Defects in the GBA1 gene lead to glycosphingolipidosis Gaucher disease (GD), in which the hydrolysis of GlcCer is impaired and therefore, it accumulates in…

Tomography is a powerful technique to non-destructively determine the interior structure of an object.Usually, a series of projection images (e.g.\ X-ray images) is acquired from a range of different positions.

Promotor: R. Tijdeman, Co-promotor: H.J.J. te Riele

In this thesis we will explore the use of fuzzy systems theory for applications in bioinformatics.

Electron microscopy has become an extremely important techniquein a wide variety of elds.

Sinds kort bestaat het Leiden University Buddhist Studies Network, opgericht bij het LIAS, het Leiden University Institute for Area Studies.

In Mesopotamië (3000 v. Chr. tot 70 n. Chr) zijn de oudste vormen van literatuur en recht gevonden en belangrijke ontdekkingen in de wetenschap en techniek gedaan. Al deze ontwikkelingen zijn op kleitabletten in spijkerschrift vastgelegd. Daarom kan bestudering van spijkerschrift ons ook nu nog veel…

Het was 14 oktober weer een drukte van jewelste in de zonovergoten binnenstad van Leiden. Enkele duizenden scholieren en hun ouders bezochten de Open Dag. Bij de informatiemarkt in de Pieterskerk spraken we enkele studiekiezers met elk hun eigen vragen, twijfels en overwegingen.

Stage lopen bij de Politieacademie in Apeldoorn. Dat kan vanaf september 2021 voor het eerst voor derdejaarsstudenten van het bachelorprogramma Security Studies nu de Universiteit Leiden en de Politieacademie de handen ineen hebben geslagen. ‘De stageplaatsen bieden studenten een unieke kans op een…

Lezing, Tuesday Talks: Science Insights

This research project studies the distribution and impact of medieval malaria in the Netherlands.

Radboud Ancient and Medieval Studies organiseert ook dit jaar een lezingenreeks. Het programma voor het eerste semester is hieronder te vinden.

One of the key quests in astronomy is to study the growth and evolution of galaxies across cosmic time. Radio observations provide a powerful means of studying the formation of stars and subsequent buildup of distant galaxies, in a way that is unbiased by the presence of dust.

What is the optimal design of sandy solutions for sustainable climate change adaption, from an ecological, biophysical and societal point of view?

The research in this dissertation aims to optimise blood donation processes in the framework of the Dutch national blood bank Sanquin. The primary health risk for blood donors is iron deficiency, which is evaluated based on donors' hemoglobin and ferritin levels.

How do you engage society to stop biodiversity loss? How do you create political and social involvement to deal with climate change? And how do you balance the economic needs of industry with the negative effects of pollution? If you find these kinds of questions interesting, then this Pre-University…

Ruim 10.000 scholieren en ouders bezochten op 25 februari de Open Dag van Universiteit Leiden. Op verschillende locaties in de stad kregen de studiekiezers informatie over de opleidingen in Leiden en Den Haag. ‘Ik ben benieuwd naar de ervaringen van studenten.’

More than 300 students received their Bachelor’s Diploma of International Studies on 31 August 2018.

Promotor: H.V.J. Linnartz

Drieëntwintig studenten die excellente resultaten behaalden tijdens de minor Intelligence Studies ontvingen dit jaar de Kluitersprijs.

Negentien studenten die excellente resultaten behaalden tijdens de minor Intelligence Studies ontvingen dit jaar de Kluitersprijs.

An interdisciplinary collection of the best international scholarship on Muslim youth.

Heterogeneous catalyzed processes are highly significant to the chemical industry. Dissociative chemisorption (DC) of molecules on surfaces is always considered as a step with a high degree of rate control for heterogeneous catalysis.

Quantum computing is an emerging technology, which holds the potential to simulate complex quantum systems beyond the reach of classical numerical methods.Despite recent formidable advancements in quantum hardware, constructing a quantum computer capable of performing useful calculations remains challenging.In…

In this thesis we study quantum transport phenomena on the nanometer scale, in two classes of materials: topological insulators with induced superconductivity and graphene superlattices.

In this Ph.D. thesis we study the interaction of low energy electrons with thin materials, namely layered materials (graphene, hexagonal boron nitride, molybdenum disulfide) and organic films. At these low energies the quantum mechanical wavelength of the electron wave function is in the order of a…

This multidisciplinary minor provides students with knowledge on how and why humans became the way they are. The minor focuses on the evolution of the species Homo sapiens from other hominin lineages and animal ancestors, and on the various factors shaping this process. Not only is human evolution of…

Weekly Workshop

Leiden University’s Academic Challenge

Kunnen we van quantum-verrassingen quantum toepassingen maken? Kunnen we het leven onderzoeken en opbouwen vanuit de nano-schaal?

Promotores: Prof.dr. M. Franx, Prof.dr. M. Kriek (Univ. of California at Berkeley)

Data theory research on the analysis on the multidimensional data

This project uses archaeological, literary and epigraphic evidence to investigate urban development in Roman-period North Africa, compiling this in a GIS-linked database in order to analyse the development of urban settlement spatially over time.

How were the Russians, under early modern conditions, able to incorporate this distant, undeveloped and, because frequent nomadic attacks, dangerous territory? And what role did the Kolyvan-Voskresensk plants play in this process?

On Friday, 29 October 2021 (15.15-17.00), this year’s lecture will be delivered by Prof. Howard Louthan, (University of Minnesota, Minneapolis, USA) at the Faculty Club of Leiden University. It will be titled ‘Revisiting a Renaissance Classic: Theuerdank, Maximilian I (1486-1519) and the Discovery of…

This thesis describes the structural and biochemical characterization of the β-lactamase BlaC from Mycobacterium tuberculosis (Mtb), and the Alr and YlmE proteins from Streptomyces coelicolor A3(2).Mtb is the main cause of tuberculosis.

Op deze pagina vindt u de opnames van de online This Week's Discoveries vanaf 12 mei 2020 en een lijst sprekers vanaf oktober 2015.

Artin L-functions associated to continuous representations of the absolute Galois group G_K of a global field K capture a lot of information about G_K as well as arithmetic properties of K.

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

Promotor: P. T. de Zeeuw, Co-promotor: N. Neumayer; G. van de Ven

Promotores: G.A. Persoon, H.H. de Iongh

In his dissertation Michiel Hooykaas outlines the results of six empirical research projects focused at biodiversity awareness in the Netherlands, specifically people’s knowledge about animals.